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freebsd/sys/dev/aic7xxx/aic7xxx.c

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/*
* Generic driver for the aic7xxx based adaptec SCSI controllers
* Product specific probe and attach routines can be found in:
* i386/eisa/ahc_eisa.c 27/284X and aic7770 motherboard controllers
* pci/ahc_pci.c 3985, 3980, 3940, 2940, aic7895, aic7890,
* aic7880, aic7870, aic7860, and aic7850 controllers
*
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
* Copyright (c) 1994, 1995, 1996, 1997, 1998, 1999, 2000 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* GNU Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
1999-08-28 01:08:13 +00:00
* $FreeBSD$
*/
/*
* A few notes on features of the driver.
*
* SCB paging takes advantage of the fact that devices stay disconnected
* from the bus a relatively long time and that while they're disconnected,
* having the SCBs for these transactions down on the host adapter is of
* little use. Instead of leaving this idle SCB down on the card we copy
* it back up into kernel memory and reuse the SCB slot on the card to
* schedule another transaction. This can be a real payoff when doing random
* I/O to tagged queueing devices since there are more transactions active at
* once for the device to sort for optimal seek reduction. The algorithm goes
* like this...
*
* The sequencer maintains two lists of its hardware SCBs. The first is the
* singly linked free list which tracks all SCBs that are not currently in
* use. The second is the doubly linked disconnected list which holds the
* SCBs of transactions that are in the disconnected state sorted most
* recently disconnected first. When the kernel queues a transaction to
* the card, a hardware SCB to "house" this transaction is retrieved from
* either of these two lists. If the SCB came from the disconnected list,
* a check is made to see if any data transfer or SCB linking (more on linking
* in a bit) information has been changed since it was copied from the host
* and if so, DMAs the SCB back up before it can be used. Once a hardware
* SCB has been obtained, the SCB is DMAed from the host. Before any work
* can begin on this SCB, the sequencer must ensure that either the SCB is
* for a tagged transaction or the target is not already working on another
* non-tagged transaction. If a conflict arises in the non-tagged case, the
* sequencer finds the SCB for the active transactions and sets the SCB_LINKED
* field in that SCB to this next SCB to execute. To facilitate finding
* active non-tagged SCBs, the last four bytes of up to the first four hardware
* SCBs serve as a storage area for the currently active SCB ID for each
* target.
*
* When a device reconnects, a search is made of the hardware SCBs to find
* the SCB for this transaction. If the search fails, a hardware SCB is
* pulled from either the free or disconnected SCB list and the proper
* SCB is DMAed from the host. If the MK_MESSAGE control bit is set
* in the control byte of the SCB while it was disconnected, the sequencer
* will assert ATN and attempt to issue a message to the host.
*
* When a command completes, a check for non-zero status and residuals is
* made. If either of these conditions exists, the SCB is DMAed back up to
* the host so that it can interpret this information. Additionally, in the
* case of bad status, the sequencer generates a special interrupt and pauses
* itself. This allows the host to setup a request sense command if it
* chooses for this target synchronously with the error so that sense
* information isn't lost.
*
*/
#include <opt_aic7xxx.h>
#include <pci.h>
#include <stddef.h> /* For offsetof */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/eventhandler.h>
#include <sys/proc.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#if NPCI > 0
#include <machine/bus_memio.h>
#endif
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/clock.h>
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#include <machine/endian.h>
#include <sys/rman.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <dev/aic7xxx/aic7xxx.h>
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#include <dev/aic7xxx/aicasm_insformat.h>
#include <aic7xxx_reg.h>
#include <aic7xxx_seq.h>
#include <sys/kernel.h>
#ifndef AHC_TMODE_ENABLE
#define AHC_TMODE_ENABLE 0
#endif
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define ALL_CHANNELS '\0'
#define ALL_TARGETS_MASK 0xFFFF
#define INITIATOR_WILDCARD (~0)
#define SIM_IS_SCSIBUS_B(ahc, sim) \
((sim) == ahc->sim_b)
#define SIM_CHANNEL(ahc, sim) \
(((sim) == ahc->sim_b) ? 'B' : 'A')
#define SIM_SCSI_ID(ahc, sim) \
(((sim) == ahc->sim_b) ? ahc->our_id_b : ahc->our_id)
#define SIM_PATH(ahc, sim) \
(((sim) == ahc->sim_b) ? ahc->path_b : ahc->path)
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#define SCSIID_TARGET(ahc, scsiid) \
(((scsiid) & ((((ahc)->features & AHC_TWIN) != 0) ? TWIN_TID : TID)) \
>> TID_SHIFT)
#define SCSIID_OUR_ID(scsiid) \
((scsiid) & OID)
#define SCSIID_CHANNEL(ahc, scsiid) \
((((ahc)->features & AHC_TWIN) != 0) \
? ((((scsiid) & TWIN_CHNLB) != 0) ? 'B' : 'A') \
: 'A')
#define SCB_IS_SCSIBUS_B(ahc, scb) \
(SCSIID_CHANNEL(ahc, (scb)->hscb->scsiid) == 'B')
#define SCB_GET_OUR_ID(scb) \
SCSIID_OUR_ID((scb)->hscb->scsiid)
#define SCB_GET_TARGET(ahc, scb) \
SCSIID_TARGET((ahc), (scb)->hscb->scsiid)
#define SCB_GET_CHANNEL(ahc, scb) \
SCSIID_CHANNEL(ahc, (scb)->hscb->scsiid)
#define SCB_GET_LUN(scb) \
((scb)->hscb->lun)
#define SCB_GET_TARGET_OFFSET(ahc, scb) \
(SCB_GET_TARGET(ahc, scb) + (SCB_IS_SCSIBUS_B(ahc, scb) ? 8 : 0))
#define SCB_GET_TARGET_MASK(ahc, scb) \
(0x01 << (SCB_GET_TARGET_OFFSET(ahc, scb)))
#define TCL_TARGET_OFFSET(tcl) \
((((tcl) >> 4) & TID) >> 4)
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
#define TCL_LUN(tcl) \
(tcl & (AHC_NUM_LUNS - 1))
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#define BUILD_TCL(scsiid, lun) \
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
((lun) | (((scsiid) & TID) << 4))
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#define BUILD_SCSIID(ahc, sim, target_id, our_id) \
((((target_id) << TID_SHIFT) & TID) | (our_id) \
| (SIM_IS_SCSIBUS_B(ahc, sim) ? TWIN_CHNLB : 0))
#define ccb_scb_ptr spriv_ptr0
#define ccb_ahc_ptr spriv_ptr1
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
char *ahc_chip_names[] =
{
"NONE",
"aic7770",
"aic7850",
"aic7855",
"aic7859",
"aic7860",
"aic7870",
"aic7880",
"aic7895",
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
"aic7890/91",
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
"aic7896/97",
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
"aic7892",
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
"aic7899"
};
typedef enum {
ROLE_UNKNOWN,
ROLE_INITIATOR,
ROLE_TARGET
} role_t;
struct ahc_devinfo {
int our_scsiid;
int target_offset;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint16_t target_mask;
uint8_t target;
uint8_t lun;
char channel;
role_t role; /*
* Only guaranteed to be correct if not
* in the busfree state.
*/
};
typedef enum {
SEARCH_COMPLETE,
SEARCH_COUNT,
SEARCH_REMOVE
} ahc_search_action;
#ifdef AHC_DEBUG
static int ahc_debug = AHC_DEBUG;
#endif
#if NPCI > 0
void ahc_pci_intr(struct ahc_softc *ahc);
#endif
static int ahcinitscbdata(struct ahc_softc *ahc);
static void ahcfiniscbdata(struct ahc_softc *ahc);
static bus_dmamap_callback_t ahcdmamapcb;
#if UNUSED
static void ahc_dump_targcmd(struct target_cmd *cmd);
#endif
static void ahc_shutdown(void *arg, int howto);
static cam_status
ahc_find_tmode_devs(struct ahc_softc *ahc,
struct cam_sim *sim, union ccb *ccb,
struct tmode_tstate **tstate,
struct tmode_lstate **lstate,
int notfound_failure);
static void ahc_action(struct cam_sim *sim, union ccb *ccb);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void ahc_async(void *callback_arg, uint32_t code,
struct cam_path *path, void *arg);
static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs,
int nsegments, int error);
static void ahc_poll(struct cam_sim *sim);
static void ahc_setup_data(struct ahc_softc *ahc,
struct ccb_scsiio *csio, struct scb *scb);
static void ahc_freeze_devq(struct ahc_softc *ahc, struct cam_path *path);
static void ahcallocscbs(struct ahc_softc *ahc);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
#if UNUSED
static void ahc_scb_devinfo(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct scb *scb);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
#endif
static void ahc_fetch_devinfo(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_compile_devinfo(struct ahc_devinfo *devinfo, u_int our_id,
u_int target, u_int lun, char channel,
role_t role);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static u_int ahc_rem_wscb(struct ahc_softc *ahc, u_int scbpos, u_int prev);
static void ahc_done(struct ahc_softc *ahc, struct scb *scbp);
static struct tmode_tstate *
ahc_alloc_tstate(struct ahc_softc *ahc,
u_int scsi_id, char channel);
static void ahc_free_tstate(struct ahc_softc *ahc,
u_int scsi_id, char channel, int force);
static void ahc_handle_en_lun(struct ahc_softc *ahc, struct cam_sim *sim,
union ccb *ccb);
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
static void ahc_update_scsiid(struct ahc_softc *ahc, u_int targid_mask);
static int ahc_handle_target_cmd(struct ahc_softc *ahc,
struct target_cmd *cmd);
static void ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat);
static void ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat);
static void ahc_build_transfer_msg(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_setup_initiator_msgout(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct scb *scb);
static void ahc_setup_target_msgin(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static int ahc_handle_msg_reject(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_clear_msg_state(struct ahc_softc *ahc);
static void ahc_handle_message_phase(struct ahc_softc *ahc,
struct cam_path *path);
static int ahc_sent_msg(struct ahc_softc *ahc, u_int msgtype, int full);
typedef enum {
MSGLOOP_IN_PROG,
MSGLOOP_MSGCOMPLETE,
MSGLOOP_TERMINATED
} msg_loop_stat;
static int ahc_parse_msg(struct ahc_softc *ahc, struct cam_path *path,
struct ahc_devinfo *devinfo);
static void ahc_handle_ign_wide_residue(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo);
static void ahc_handle_devreset(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
cam_status status, ac_code acode,
char *message,
int verbose_level);
#ifdef AHC_DUMP_SEQ
static void ahc_dumpseq(struct ahc_softc *ahc);
#endif
static void ahc_loadseq(struct ahc_softc *ahc);
static int ahc_check_patch(struct ahc_softc *ahc,
struct patch **start_patch,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int start_instr, u_int *skip_addr);
static void ahc_download_instr(struct ahc_softc *ahc,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int instrptr, uint8_t *dconsts);
static int ahc_match_scb(struct ahc_softc *ahc, struct scb *scb,
int target, char channel, int lun, u_int tag,
role_t role);
#ifdef AHC_DEBUG
static void ahc_print_scb(struct scb *scb);
#endif
static int ahc_search_qinfifo(struct ahc_softc *ahc, int target,
char channel, int lun, u_int tag,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
role_t role, uint32_t status,
ahc_search_action action);
static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim,
union ccb *ccb);
static int ahc_reset_channel(struct ahc_softc *ahc, char channel,
int initiate_reset);
static int ahc_abort_scbs(struct ahc_softc *ahc, int target,
char channel, int lun, u_int tag, role_t role,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint32_t status);
static int ahc_search_disc_list(struct ahc_softc *ahc, int target,
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
char channel, int lun, u_int tag,
int stop_on_first, int remove,
int save_state);
static u_int ahc_rem_scb_from_disc_list(struct ahc_softc *ahc,
u_int prev, u_int scbptr);
static void ahc_add_curscb_to_free_list(struct ahc_softc *ahc);
static void ahc_clear_intstat(struct ahc_softc *ahc);
static void ahc_reset_current_bus(struct ahc_softc *ahc);
static struct ahc_syncrate *
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_devlimited_syncrate(struct ahc_softc *ahc, u_int *period,
u_int *ppr_options);
static struct ahc_syncrate *
ahc_find_syncrate(struct ahc_softc *ahc, u_int *period,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int *ppr_options, u_int maxsync);
static u_int ahc_find_period(struct ahc_softc *ahc, u_int scsirate,
u_int maxsync);
static void ahc_validate_offset(struct ahc_softc *ahc,
struct ahc_syncrate *syncrate,
u_int *offset, int wide);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void ahc_validate_width(struct ahc_softc *ahc, u_int *bus_width);
static void ahc_update_target_msg_request(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct ahc_initiator_tinfo *tinfo,
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
int force, int paused);
static int ahc_create_path(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct cam_path **path);
static void ahc_set_syncrate(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct cam_path *path,
struct ahc_syncrate *syncrate,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int period, u_int offset,
u_int ppr_options, u_int type,
int paused);
static void ahc_set_width(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct cam_path *path, u_int width, u_int type,
int paused);
static void ahc_set_tags(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
int enable);
static void ahc_construct_sdtr(struct ahc_softc *ahc,
u_int period, u_int offset);
static void ahc_construct_wdtr(struct ahc_softc *ahc, u_int bus_width);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void ahc_construct_ppr(struct ahc_softc *ahc, u_int period,
u_int offset, u_int bus_width,
u_int ppr_options);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline int ahc_check_residual(struct scb *scb);
static void ahc_calc_residual(struct scb *scb);
static void ahc_update_pending_syncrates(struct ahc_softc *ahc);
static void ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb);
static timeout_t
ahc_timeout;
static void ahc_queue_lstate_event(struct ahc_softc *ahc,
struct tmode_lstate *lstate,
u_int initiator_id, u_int event_type,
u_int event_arg);
static void ahc_send_lstate_events(struct ahc_softc *ahc,
struct tmode_lstate *lstate);
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
static void restart_sequencer(struct ahc_softc *ahc);
static u_int ahc_index_busy_tcl(struct ahc_softc *ahc,
u_int tcl, int unbusy);
static __inline void ahc_freeze_ccb(union ccb* ccb);
static __inline cam_status ahc_ccb_status(union ccb* ccb);
static __inline void ahcsetccbstatus(union ccb* ccb,
cam_status status);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void ahc_run_untagged_queues(struct ahc_softc *);
static void ahc_run_untagged_queue(struct ahc_softc *,
struct scb_tailq *);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
static void ahc_run_tqinfifo(struct ahc_softc *ahc, int paused);
static void ahc_run_qoutfifo(struct ahc_softc *ahc);
static __inline struct ahc_initiator_tinfo *
ahc_fetch_transinfo(struct ahc_softc *ahc,
char channel,
u_int our_id, u_int target,
struct tmode_tstate **tstate);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline struct ahc_dma_seg *
ahc_sg_bus_to_virt(struct scb *scb,
uint32_t sg_busaddr);
static __inline uint32_t
ahc_sg_virt_to_bus(struct scb *scb,
struct ahc_dma_seg *sg);
static __inline void ahc_queue_scb(struct ahc_softc *ahc,
struct scb *scb);
static void ahcfreescb(struct ahc_softc *ahc, struct scb *scb);
static __inline struct scb *ahcgetscb(struct ahc_softc *ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline void ahc_freeze_untagged_queues(struct ahc_softc *ahc);
static __inline void ahc_release_untagged_queues(struct ahc_softc *ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline uint32_t
ahc_hscb_busaddr(struct ahc_softc *ahc, u_int index)
{
return (ahc->scb_data->hscb_busaddr
+ (sizeof(struct hardware_scb) * index));
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#define AHC_BUSRESET_DELAY 250 /* Reset delay in us */
/*
* Restart the sequencer program from address zero
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
static void
restart_sequencer(struct ahc_softc *ahc)
{
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
u_int i;
pause_sequencer(ahc);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/*
* Everytime we restart the sequencer, there
* is the possiblitity that we have restarted
* within a three instruction window where an
* SCB has been marked free but has not made it
* onto the free list. Since SCSI events(bus reset,
* unexpected bus free) will always freeze the
* sequencer, we cannot close this window. To
* avoid losing an SCB, we reconsitute the free
* list every time we restart the sequencer.
*/
ahc_outb(ahc, FREE_SCBH, SCB_LIST_NULL);
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
ahc_outb(ahc, SCBPTR, i);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_inb(ahc, SCB_TAG) == SCB_LIST_NULL) {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_add_curscb_to_free_list(ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
}
ahc_outb(ahc, SEQCTL, FASTMODE|SEQRESET);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
}
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
static u_int
ahc_index_busy_tcl(struct ahc_softc *ahc, u_int tcl, int unbusy)
{
u_int scbid;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int target_offset;
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
if ((ahc->features & AHC_SCB_BTT) != 0) {
u_int saved_scbptr;
saved_scbptr = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, TCL_LUN(tcl));
scbid = ahc_inb(ahc, SCB_64_BTT + TCL_TARGET_OFFSET(tcl));
if (unbusy)
ahc_outb(ahc, SCB_64_BTT + TCL_TARGET_OFFSET(tcl),
SCB_LIST_NULL);
ahc_outb(ahc, SCBPTR, saved_scbptr);
} else {
target_offset = TCL_TARGET_OFFSET(tcl);
scbid = ahc_inb(ahc, BUSY_TARGETS + target_offset);
if (unbusy)
ahc_outb(ahc, BUSY_TARGETS + target_offset,
SCB_LIST_NULL);
}
return (scbid);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline int
ahc_check_residual(struct scb *scb)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct status_pkt *sp;
sp = &scb->hscb->shared_data.status;
if ((scb->hscb->sgptr & SG_RESID_VALID) != 0)
return (1);
return (0);
}
static __inline void
ahc_freeze_ccb(union ccb* ccb)
{
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
ccb->ccb_h.status |= CAM_DEV_QFRZN;
xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
}
}
static __inline cam_status
ahc_ccb_status(union ccb* ccb)
{
return (ccb->ccb_h.status & CAM_STATUS_MASK);
}
static __inline void
ahcsetccbstatus(union ccb* ccb, cam_status status)
{
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= status;
}
static __inline struct ahc_initiator_tinfo *
ahc_fetch_transinfo(struct ahc_softc *ahc, char channel, u_int our_id,
u_int remote_id, struct tmode_tstate **tstate)
{
/*
* Transfer data structures are stored from the perspective
* of the target role. Since the parameters for a connection
* in the initiator role to a given target are the same as
* when the roles are reversed, we pretend we are the target.
*/
if (channel == 'B')
our_id += 8;
*tstate = ahc->enabled_targets[our_id];
return (&(*tstate)->transinfo[remote_id]);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static __inline struct ahc_dma_seg *
ahc_sg_bus_to_virt(struct scb *scb, uint32_t sg_busaddr)
{
int sg_index;
sg_index = (sg_busaddr - scb->sg_list_phys)/sizeof(struct ahc_dma_seg);
/* sg_list_phys points to entry 1, not 0 */
sg_index++;
return (&scb->sg_list[sg_index]);
}
static __inline uint32_t
ahc_sg_virt_to_bus(struct scb *scb, struct ahc_dma_seg *sg)
{
int sg_index;
/* sg_list_phys points to entry 1, not 0 */
sg_index = sg - &scb->sg_list[1];
return (scb->sg_list_phys + (sg_index * sizeof(*scb->sg_list)));
}
static __inline void
ahc_queue_scb(struct ahc_softc *ahc, struct scb *scb)
{
ahc->qinfifo[ahc->qinfifonext++] = scb->hscb->tag;
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
} else {
pause_sequencer(ahc);
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
unpause_sequencer(ahc);
}
}
static __inline void
ahc_freeze_untagged_queues(struct ahc_softc *ahc)
{
if ((ahc->features & AHC_SCB_BTT) == 0)
ahc->untagged_queue_lock++;
}
static __inline void
ahc_release_untagged_queues(struct ahc_softc *ahc)
{
if ((ahc->features & AHC_SCB_BTT) == 0) {
ahc->untagged_queue_lock--;
if (ahc->untagged_queue_lock == 0)
ahc_run_untagged_queues(ahc);
}
}
static void
ahc_run_untagged_queues(struct ahc_softc *ahc)
{
int i;
for (i = 0; i < 16; i++)
ahc_run_untagged_queue(ahc, &ahc->untagged_queues[i]);
}
static void
ahc_run_untagged_queue(struct ahc_softc *ahc, struct scb_tailq *queue)
{
struct scb *scb;
if (ahc->untagged_queue_lock != 0)
return;
if ((scb = TAILQ_FIRST(queue)) != NULL
&& (scb->flags & SCB_ACTIVE) == 0) {
scb->flags |= SCB_ACTIVE;
ahc_queue_scb(ahc, scb);
}
}
static void
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
ahc_run_tqinfifo(struct ahc_softc *ahc, int paused)
{
struct target_cmd *cmd;
while ((cmd = &ahc->targetcmds[ahc->tqinfifonext])->cmd_valid != 0) {
/*
* Only advance through the queue if we
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* have the resources to process the command.
*/
if (ahc_handle_target_cmd(ahc, cmd) != 0)
break;
ahc->tqinfifonext++;
cmd->cmd_valid = 0;
/*
* Lazily update our position in the target mode incomming
* command queue as seen by the sequencer.
*/
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if ((ahc->tqinfifonext & (HOST_TQINPOS - 1)) == 1) {
if ((ahc->features & AHC_HS_MAILBOX) != 0) {
u_int hs_mailbox;
hs_mailbox = ahc_inb(ahc, HS_MAILBOX);
hs_mailbox &= ~HOST_TQINPOS;
hs_mailbox |= ahc->tqinfifonext & HOST_TQINPOS;
ahc_outb(ahc, HS_MAILBOX, hs_mailbox);
} else {
if (!paused)
pause_sequencer(ahc);
ahc_outb(ahc, KERNEL_TQINPOS,
ahc->tqinfifonext & HOST_TQINPOS);
if (!paused)
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
}
}
}
}
static void
ahc_run_qoutfifo(struct ahc_softc *ahc)
{
struct scb *scb;
u_int scb_index;
while (ahc->qoutfifo[ahc->qoutfifonext] != SCB_LIST_NULL) {
scb_index = ahc->qoutfifo[ahc->qoutfifonext];
ahc->qoutfifo[ahc->qoutfifonext++] = SCB_LIST_NULL;
scb = &ahc->scb_data->scbarray[scb_index];
if (scb_index >= ahc->scb_data->numscbs
|| (scb->flags & SCB_ACTIVE) == 0) {
printf("%s: WARNING no command for scb %d "
"(cmdcmplt)\nQOUTPOS = %d\n",
ahc_name(ahc), scb_index,
ahc->qoutfifonext - 1);
continue;
}
/*
* Save off the residual
* if there is one.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_check_residual(scb) != 0)
ahc_calc_residual(scb);
else
scb->ccb->csio.resid = 0;
ahc_done(ahc, scb);
}
}
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Return an SCB resource to the free list.
*/
static void
ahcfreescb(struct ahc_softc *ahc, struct scb *scb)
{
struct hardware_scb *hscb;
int opri;
hscb = scb->hscb;
opri = splcam();
if ((ahc->flags & AHC_RESOURCE_SHORTAGE) != 0
&& (scb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
scb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
ahc->flags &= ~AHC_RESOURCE_SHORTAGE;
}
/* Clean up for the next user */
scb->flags = SCB_FREE;
hscb->control = 0;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs, scb, links.sle);
splx(opri);
}
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Get a free scb. If there are none, see if we can allocate a new SCB.
*/
static __inline struct scb *
ahcgetscb(struct ahc_softc *ahc)
{
struct scb *scbp;
int opri;
opri = splcam();
if ((scbp = SLIST_FIRST(&ahc->scb_data->free_scbs))) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SLIST_REMOVE_HEAD(&ahc->scb_data->free_scbs, links.sle);
} else {
ahcallocscbs(ahc);
scbp = SLIST_FIRST(&ahc->scb_data->free_scbs);
if (scbp != NULL)
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SLIST_REMOVE_HEAD(&ahc->scb_data->free_scbs, links.sle);
}
splx(opri);
return (scbp);
}
char *
ahc_name(struct ahc_softc *ahc)
{
static char name[10];
snprintf(name, sizeof(name), "ahc%d", ahc->unit);
return (name);
}
#ifdef AHC_DEBUG
static void
ahc_print_scb(struct scb *scb)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int i;
struct hardware_scb *hscb = scb->hscb;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
printf("scb:%p control:0x%x scsiid:0x%x lun:%d cdb_len:%d\n",
scb,
hscb->control,
hscb->scsiid,
hscb->lun,
hscb->cdb_len);
i = 0;
printf("Shared Data: %#02x %#02x %#02x %#02x\n",
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++]);
printf(" %#02x %#02x %#02x %#02x\n",
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++]);
printf(" %#02x %#02x %#02x %#02x\n",
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++],
hscb->shared_data.cdb[i++]);
printf(" dataptr:%#x datacnt:%#x sgptr:%#x tag:%#x\n",
hscb->dataptr,
hscb->datacnt,
hscb->sgptr,
hscb->tag);
if (scb->sg_count > 0) {
for (i = 0; i < scb->sg_count; i++) {
printf("sg[%d] - Addr 0x%x : Length %d\n",
i,
scb->sg_list[i].addr,
scb->sg_list[i].len);
}
}
}
#endif
static struct {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t errno;
char *errmesg;
} hard_error[] = {
{ ILLHADDR, "Illegal Host Access" },
{ ILLSADDR, "Illegal Sequencer Address referrenced" },
{ ILLOPCODE, "Illegal Opcode in sequencer program" },
{ SQPARERR, "Sequencer Parity Error" },
{ DPARERR, "Data-path Parity Error" },
{ MPARERR, "Scratch or SCB Memory Parity Error" },
{ PCIERRSTAT, "PCI Error detected" },
{ CIOPARERR, "CIOBUS Parity Error" },
};
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
static const int num_errors = sizeof(hard_error)/sizeof(hard_error[0]);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
static struct {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t phase;
uint8_t mesg_out; /* Message response to parity errors */
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
char *phasemsg;
} phase_table[] = {
{ P_DATAOUT, MSG_NOOP, "in Data-out phase" },
{ P_DATAIN, MSG_INITIATOR_DET_ERR, "in Data-in phase" },
{ P_COMMAND, MSG_NOOP, "in Command phase" },
{ P_MESGOUT, MSG_NOOP, "in Message-out phase" },
{ P_STATUS, MSG_INITIATOR_DET_ERR, "in Status phase" },
{ P_MESGIN, MSG_PARITY_ERROR, "in Message-in phase" },
{ P_BUSFREE, MSG_NOOP, "while idle" },
{ 0, MSG_NOOP, "in unknown phase" }
};
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static const u_int num_phases =
(sizeof(phase_table)/sizeof(phase_table[0])) - 1;
/*
* Valid SCSIRATE values. (p. 3-17)
* Provides a mapping of tranfer periods in ns to the proper value to
* stick in the scsiscfr reg to use that transfer rate.
*/
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
#define AHC_SYNCRATE_DT 0
#define AHC_SYNCRATE_ULTRA2 1
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
#define AHC_SYNCRATE_ULTRA 3
#define AHC_SYNCRATE_FAST 6
static struct ahc_syncrate ahc_syncrates[] = {
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
/* ultra2 fast/ultra period rate */
{ 0x42, 0x000, 9, "80.0" },
{ 0x03, 0x000, 10, "40.0" },
{ 0x04, 0x000, 11, "33.0" },
{ 0x05, 0x100, 12, "20.0" },
{ 0x06, 0x110, 15, "16.0" },
{ 0x07, 0x120, 18, "13.4" },
{ 0x08, 0x000, 25, "10.0" },
{ 0x19, 0x010, 31, "8.0" },
{ 0x1a, 0x020, 37, "6.67" },
{ 0x1b, 0x030, 43, "5.7" },
{ 0x1c, 0x040, 50, "5.0" },
{ 0x00, 0x050, 56, "4.4" },
{ 0x00, 0x060, 62, "4.0" },
{ 0x00, 0x070, 68, "3.6" },
{ 0x00, 0x000, 0, NULL }
};
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
void
ahc_init_probe_config(struct ahc_probe_config *probe_config)
{
probe_config->description = NULL;
probe_config->channel = 'A';
probe_config->channel_b = 'B';
probe_config->chip = AHC_NONE;
probe_config->features = AHC_FENONE;
probe_config->bugs = AHC_BUGNONE;
probe_config->flags = AHC_FNONE;
}
/*
* Allocate a controller structure for a new device and initialize it.
*/
struct ahc_softc *
ahc_alloc(device_t dev, struct resource *regs, int regs_type, int regs_id,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
bus_dma_tag_t parent_dmat, struct ahc_probe_config *config,
struct scb_data *scb_data)
{
/*
* find unit and check we have that many defined
*/
struct ahc_softc *ahc;
size_t alloc_size;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int i;
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Allocate a storage area for us.
*/
if (scb_data == NULL)
/*
* We are not sharing SCB space with another controller
* so allocate our own SCB data space.
*/
alloc_size = sizeof(struct full_ahc_softc);
else
alloc_size = sizeof(struct ahc_softc);
ahc = malloc(alloc_size, M_DEVBUF, M_NOWAIT);
if (!ahc) {
device_printf(dev, "cannot malloc softc!\n");
return NULL;
}
bzero(ahc, alloc_size);
LIST_INIT(&ahc->pending_ccbs);
ahc->device = dev;
ahc->unit = device_get_unit(dev);
ahc->regs_res_type = regs_type;
ahc->regs_res_id = regs_id;
ahc->regs = regs;
ahc->tag = rman_get_bustag(regs);
ahc->bsh = rman_get_bushandle(regs);
ahc->parent_dmat = parent_dmat;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc->chip = config->chip;
ahc->features = config->features;
ahc->bugs = config->bugs;
ahc->flags = config->flags;
ahc->channel = config->channel;
for (i = 0; i < 16; i++)
TAILQ_INIT(&ahc->untagged_queues[i]);
if (scb_data == NULL) {
struct full_ahc_softc* full_softc = (struct full_ahc_softc*)ahc;
ahc->scb_data = &full_softc->scb_data_storage;
} else
ahc->scb_data = scb_data;
ahc->unpause = (ahc_inb(ahc, HCNTRL) & IRQMS) | INTEN;
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
/* The IRQMS bit is only valid on VL and EISA chips */
if ((ahc->chip & AHC_PCI) != 0)
ahc->unpause &= ~IRQMS;
ahc->pause = ahc->unpause | PAUSE;
return (ahc);
}
void
ahc_free(ahc)
struct ahc_softc *ahc;
{
ahcfiniscbdata(ahc);
switch (ahc->init_level) {
case 3:
bus_dmamap_unload(ahc->shared_data_dmat,
ahc->shared_data_dmamap);
case 2:
bus_dmamem_free(ahc->shared_data_dmat, ahc->qoutfifo,
ahc->shared_data_dmamap);
bus_dmamap_destroy(ahc->shared_data_dmat,
ahc->shared_data_dmamap);
case 1:
bus_dma_tag_destroy(ahc->buffer_dmat);
break;
}
if (ahc->regs != NULL)
bus_release_resource(ahc->device, ahc->regs_res_type,
ahc->regs_res_id, ahc->regs);
if (ahc->irq != NULL)
bus_release_resource(ahc->device, ahc->irq_res_type,
0, ahc->irq);
free(ahc, M_DEVBUF);
return;
}
static int
ahcinitscbdata(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
int i;
scb_data = ahc->scb_data;
SLIST_INIT(&scb_data->free_scbs);
SLIST_INIT(&scb_data->sg_maps);
/* Allocate SCB resources */
scb_data->scbarray =
(struct scb *)malloc(sizeof(struct scb) * AHC_SCB_MAX,
M_DEVBUF, M_NOWAIT);
if (scb_data->scbarray == NULL)
return (ENOMEM);
bzero(scb_data->scbarray, sizeof(struct scb) * AHC_SCB_MAX);
/* Determine the number of hardware SCBs and initialize them */
scb_data->maxhscbs = ahc_probe_scbs(ahc);
/* SCB 0 heads the free list */
ahc_outb(ahc, FREE_SCBH, 0);
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
ahc_outb(ahc, SCBPTR, i);
/* Clear the control byte. */
ahc_outb(ahc, SCB_CONTROL, 0);
/* Set the next pointer */
ahc_outb(ahc, SCB_NEXT, i+1);
/* Make the tag number invalid */
ahc_outb(ahc, SCB_TAG, SCB_LIST_NULL);
}
/* Make sure that the last SCB terminates the free list */
ahc_outb(ahc, SCBPTR, i-1);
ahc_outb(ahc, SCB_NEXT, SCB_LIST_NULL);
/* Ensure we clear the 0 SCB's control byte. */
ahc_outb(ahc, SCBPTR, 0);
ahc_outb(ahc, SCB_CONTROL, 0);
scb_data->maxhscbs = i;
if (ahc->scb_data->maxhscbs == 0)
panic("%s: No SCB space found", ahc_name(ahc));
/*
* Create our DMA tags. These tags define the kinds of device
* accessible memory allocations and memory mappings we will
* need to perform during normal operation.
*
* Unless we need to further restrict the allocation, we rely
* on the restrictions of the parent dmat, hence the common
* use of MAXADDR and MAXSIZE.
*/
/* DMA tag for our hardware scb structures */
if (bus_dma_tag_create(ahc->parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
AHC_SCB_MAX * sizeof(struct hardware_scb),
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->hscb_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Allocation for our ccbs */
if (bus_dmamem_alloc(scb_data->hscb_dmat, (void **)&scb_data->hscbs,
BUS_DMA_NOWAIT, &scb_data->hscb_dmamap) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* And permanently map them */
bus_dmamap_load(scb_data->hscb_dmat, scb_data->hscb_dmamap,
scb_data->hscbs,
AHC_SCB_MAX * sizeof(struct hardware_scb),
ahcdmamapcb, &scb_data->hscb_busaddr, /*flags*/0);
scb_data->init_level++;
/* DMA tag for our sense buffers */
if (bus_dma_tag_create(ahc->parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
AHC_SCB_MAX * sizeof(struct scsi_sense_data),
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sense_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Allocate them */
if (bus_dmamem_alloc(scb_data->sense_dmat, (void **)&scb_data->sense,
BUS_DMA_NOWAIT, &scb_data->sense_dmamap) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* And permanently map them */
bus_dmamap_load(scb_data->sense_dmat, scb_data->sense_dmamap,
scb_data->sense,
AHC_SCB_MAX * sizeof(struct scsi_sense_data),
ahcdmamapcb, &scb_data->sense_busaddr, /*flags*/0);
scb_data->init_level++;
/* DMA tag for our S/G structures. We allocate in page sized chunks */
if (bus_dma_tag_create(ahc->parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
PAGE_SIZE, /*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &scb_data->sg_dmat) != 0) {
goto error_exit;
}
scb_data->init_level++;
/* Perform initial CCB allocation */
bzero(scb_data->hscbs, AHC_SCB_MAX * sizeof(struct hardware_scb));
ahcallocscbs(ahc);
if (scb_data->numscbs == 0) {
printf("%s: ahc_init_scb_data - "
"Unable to allocate initial scbs\n",
ahc_name(ahc));
goto error_exit;
}
/*
* Note that we were successfull
*/
return 0;
error_exit:
return ENOMEM;
}
static void
ahcfiniscbdata(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
scb_data = ahc->scb_data;
switch (scb_data->init_level) {
default:
case 7:
{
struct sg_map_node *sg_map;
while ((sg_map = SLIST_FIRST(&scb_data->sg_maps))!= NULL) {
SLIST_REMOVE_HEAD(&scb_data->sg_maps, links);
bus_dmamap_unload(scb_data->sg_dmat,
sg_map->sg_dmamap);
bus_dmamem_free(scb_data->sg_dmat, sg_map->sg_vaddr,
sg_map->sg_dmamap);
free(sg_map, M_DEVBUF);
}
bus_dma_tag_destroy(scb_data->sg_dmat);
}
case 6:
bus_dmamap_unload(scb_data->sense_dmat,
scb_data->sense_dmamap);
case 5:
bus_dmamem_free(scb_data->sense_dmat, scb_data->sense,
scb_data->sense_dmamap);
bus_dmamap_destroy(scb_data->sense_dmat,
scb_data->sense_dmamap);
case 4:
bus_dma_tag_destroy(scb_data->sense_dmat);
case 3:
bus_dmamap_unload(scb_data->hscb_dmat, scb_data->hscb_dmamap);
case 2:
bus_dmamem_free(scb_data->hscb_dmat, scb_data->hscbs,
scb_data->hscb_dmamap);
bus_dmamap_destroy(scb_data->hscb_dmat, scb_data->hscb_dmamap);
case 1:
bus_dma_tag_destroy(scb_data->hscb_dmat);
break;
}
if (scb_data->scbarray != NULL)
free(scb_data->scbarray, M_DEVBUF);
}
static void
ahcdmamapcb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
bus_addr_t *baddr;
baddr = (bus_addr_t *)arg;
*baddr = segs->ds_addr;
}
int
ahc_reset(struct ahc_softc *ahc)
{
u_int sblkctl;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int sxfrctl1;
int wait;
#ifdef AHC_DUMP_SEQ
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if (ahc->init_level == 0)
ahc_dumpseq(ahc);
#endif
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* Cache STPWEN. It is cleared by a chip reset */
pause_sequencer(ahc);
sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN;
ahc_outb(ahc, HCNTRL, CHIPRST | ahc->pause);
/*
* Ensure that the reset has finished
*/
wait = 1000;
do {
DELAY(1000);
} while (--wait && !(ahc_inb(ahc, HCNTRL) & CHIPRSTACK));
if (wait == 0) {
printf("%s: WARNING - Failed chip reset! "
"Trying to initialize anyway.\n", ahc_name(ahc));
}
ahc_outb(ahc, HCNTRL, ahc->pause);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* Reload sxfrctl1 with the cached value of STPWEN
* to minimize the amount of time our terminators
* are disabled. If a BIOS has initialized the chip,
* then sxfrctl1 will have the correct value. If
* not, STPWEN will be false (the value after a POST)
* and this action will be harmless.
*
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
* We must always initialize STPWEN to 1 before we
* restore the saved value. STPWEN is initialized
* to a tri-state condition which is only be cleared
* by turning it on.
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
*/
ahc_outb(ahc, SXFRCTL1, sxfrctl1|STPWEN);
ahc_outb(ahc, SXFRCTL1, sxfrctl1);
/* Determine channel configuration */
sblkctl = ahc_inb(ahc, SBLKCTL) & (SELBUSB|SELWIDE);
/* No Twin Channel PCI cards */
if ((ahc->chip & AHC_PCI) != 0)
sblkctl &= ~SELBUSB;
switch (sblkctl) {
case 0:
/* Single Narrow Channel */
break;
case 2:
/* Wide Channel */
ahc->features |= AHC_WIDE;
break;
case 8:
/* Twin Channel */
ahc->features |= AHC_TWIN;
break;
default:
printf(" Unsupported adapter type. Ignoring\n");
return(-1);
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
return (0);
}
/*
* Called when we have an active connection to a target on the bus,
* this function finds the nearest syncrate to the input period limited
* by the capabilities of the bus connectivity of the target.
*/
static struct ahc_syncrate *
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_devlimited_syncrate(struct ahc_softc *ahc, u_int *period,
u_int *ppr_options) {
u_int maxsync;
if ((ahc->features & AHC_ULTRA2) != 0) {
if ((ahc_inb(ahc, SBLKCTL) & ENAB40) != 0
&& (ahc_inb(ahc, SSTAT2) & EXP_ACTIVE) == 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
maxsync = AHC_SYNCRATE_DT;
} else {
maxsync = AHC_SYNCRATE_ULTRA;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* Can't do DT on an SE bus */
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
} else if ((ahc->features & AHC_ULTRA) != 0) {
maxsync = AHC_SYNCRATE_ULTRA;
} else {
maxsync = AHC_SYNCRATE_FAST;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
return (ahc_find_syncrate(ahc, period, ppr_options, maxsync));
}
/*
* Look up the valid period to SCSIRATE conversion in our table.
* Return the period and offset that should be sent to the target
* if this was the beginning of an SDTR.
*/
static struct ahc_syncrate *
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_find_syncrate(struct ahc_softc *ahc, u_int *period,
u_int *ppr_options, u_int maxsync)
{
struct ahc_syncrate *syncrate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((ahc->features & AHC_DT) == 0)
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
for (syncrate = &ahc_syncrates[maxsync];
syncrate->rate != NULL;
syncrate++) {
/*
* The Ultra2 table doesn't go as low
* as for the Fast/Ultra cards.
*/
if ((ahc->features & AHC_ULTRA2) != 0
&& (syncrate->sxfr_u2 == 0))
break;
/* Skip any DT entries if DT is not available */
if ((*ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& (syncrate->sxfr_u2 & DT_SXFR) != 0)
continue;
if (*period <= syncrate->period) {
/*
* When responding to a target that requests
* sync, the requested rate may fall between
* two rates that we can output, but still be
* a rate that we can receive. Because of this,
* we want to respond to the target with
* the same rate that it sent to us even
* if the period we use to send data to it
* is lower. Only lower the response period
* if we must.
*/
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if (syncrate == &ahc_syncrates[maxsync])
*period = syncrate->period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* At some speeds, we only support
* ST transfers.
*/
if ((syncrate->sxfr_u2 & ST_SXFR) != 0)
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
break;
}
}
if ((*period == 0)
|| (syncrate->rate == NULL)
|| ((ahc->features & AHC_ULTRA2) != 0
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
&& (syncrate->sxfr_u2 == 0))) {
/* Use asynchronous transfers. */
*period = 0;
syncrate = NULL;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
*ppr_options &= ~MSG_EXT_PPR_DT_REQ;
}
return (syncrate);
}
static u_int
ahc_find_period(struct ahc_softc *ahc, u_int scsirate, u_int maxsync)
{
struct ahc_syncrate *syncrate;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if ((ahc->features & AHC_ULTRA2) != 0)
scsirate &= SXFR_ULTRA2;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
else
scsirate &= SXFR;
syncrate = &ahc_syncrates[maxsync];
while (syncrate->rate != NULL) {
if ((ahc->features & AHC_ULTRA2) != 0) {
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if (syncrate->sxfr_u2 == 0)
break;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
else if (scsirate == (syncrate->sxfr_u2 & SXFR_ULTRA2))
return (syncrate->period);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
} else if (scsirate == (syncrate->sxfr & SXFR)) {
return (syncrate->period);
}
syncrate++;
}
return (0); /* async */
}
static void
ahc_validate_offset(struct ahc_softc *ahc, struct ahc_syncrate *syncrate,
u_int *offset, int wide)
{
u_int maxoffset;
/* Limit offset to what we can do */
if (syncrate == NULL) {
maxoffset = 0;
} else if ((ahc->features & AHC_ULTRA2) != 0) {
maxoffset = MAX_OFFSET_ULTRA2;
} else {
if (wide)
maxoffset = MAX_OFFSET_16BIT;
else
maxoffset = MAX_OFFSET_8BIT;
}
*offset = MIN(*offset, maxoffset);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void
ahc_validate_width(struct ahc_softc *ahc, u_int *bus_width)
{
switch (*bus_width) {
default:
if (ahc->features & AHC_WIDE) {
/* Respond Wide */
*bus_width = MSG_EXT_WDTR_BUS_16_BIT;
break;
}
/* FALLTHROUGH */
case MSG_EXT_WDTR_BUS_8_BIT:
bus_width = MSG_EXT_WDTR_BUS_8_BIT;
break;
}
}
static void
ahc_update_target_msg_request(struct ahc_softc *ahc,
struct ahc_devinfo *devinfo,
struct ahc_initiator_tinfo *tinfo,
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
int force, int paused)
{
u_int targ_msg_req_orig;
targ_msg_req_orig = ahc->targ_msg_req;
if (tinfo->current.period != tinfo->goal.period
|| tinfo->current.width != tinfo->goal.width
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
|| tinfo->current.offset != tinfo->goal.offset
|| (force
&& (tinfo->goal.period != 0
|| tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT)))
ahc->targ_msg_req |= devinfo->target_mask;
else
ahc->targ_msg_req &= ~devinfo->target_mask;
if (ahc->targ_msg_req != targ_msg_req_orig) {
/* Update the message request bit for this target */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (!paused)
pause_sequencer(ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_outb(ahc, TARGET_MSG_REQUEST,
ahc->targ_msg_req & 0xFF);
ahc_outb(ahc, TARGET_MSG_REQUEST + 1,
(ahc->targ_msg_req >> 8) & 0xFF);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (!paused)
unpause_sequencer(ahc);
}
}
static int
ahc_create_path(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct cam_path **path)
{
path_id_t path_id;
if (devinfo->channel == 'B')
path_id = cam_sim_path(ahc->sim_b);
else
path_id = cam_sim_path(ahc->sim);
return (xpt_create_path(path, /*periph*/NULL,
path_id, devinfo->target,
devinfo->lun));
}
static void
ahc_set_syncrate(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct cam_path *path, struct ahc_syncrate *syncrate,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int period, u_int offset, u_int ppr_options,
u_int type, int paused)
{
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int old_period;
u_int old_offset;
int active = (type & AHC_TRANS_ACTIVE) == AHC_TRANS_ACTIVE;
if (syncrate == NULL) {
period = 0;
offset = 0;
}
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
old_period = tinfo->current.period;
old_offset = tinfo->current.offset;
if ((type & AHC_TRANS_CUR) != 0
&& (old_period != period || old_offset != offset)) {
struct cam_path *path2;
u_int scsirate;
scsirate = tinfo->scsirate;
if ((ahc->features & AHC_ULTRA2) != 0) {
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
scsirate &= ~(SXFR_ULTRA2|SINGLE_EDGE|ENABLE_CRC);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (syncrate != NULL) {
scsirate |= syncrate->sxfr_u2;
if ((ppr_options & MSG_EXT_PPR_DT_REQ) != 0)
scsirate |= ENABLE_CRC;
else
scsirate |= SINGLE_EDGE;
}
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
if (active)
ahc_outb(ahc, SCSIOFFSET, offset);
} else {
scsirate &= ~(SXFR|SOFS);
/*
* Ensure Ultra mode is set properly for
* this target.
*/
tstate->ultraenb &= ~devinfo->target_mask;
if (syncrate != NULL) {
if (syncrate->sxfr & ULTRA_SXFR) {
tstate->ultraenb |=
devinfo->target_mask;
}
scsirate |= syncrate->sxfr & SXFR;
scsirate |= offset & SOFS;
}
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
if (active) {
u_int sxfrctl0;
sxfrctl0 = ahc_inb(ahc, SXFRCTL0);
sxfrctl0 &= ~FAST20;
if (tstate->ultraenb & devinfo->target_mask)
sxfrctl0 |= FAST20;
ahc_outb(ahc, SXFRCTL0, sxfrctl0);
}
}
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
if (active)
ahc_outb(ahc, SCSIRATE, scsirate);
tinfo->scsirate = scsirate;
tinfo->current.period = period;
tinfo->current.offset = offset;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tinfo->current.ppr_options = ppr_options;
/* Update the syncrates in any pending scbs */
ahc_update_pending_syncrates(ahc);
/*
* If possible, tell the SCSI layer about the
* new transfer parameters.
*/
/* If possible, update the XPT's notion of our transfer rate */
path2 = NULL;
if (path == NULL) {
int error;
error = ahc_create_path(ahc, devinfo, &path2);
if (error == CAM_REQ_CMP)
path = path2;
else
path2 = NULL;
}
if (path != NULL) {
struct ccb_trans_settings neg;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
neg.flags = CCB_TRANS_CURRENT_SETTINGS;
neg.sync_period = period;
neg.sync_offset = offset;
neg.valid = CCB_TRANS_SYNC_RATE_VALID
| CCB_TRANS_SYNC_OFFSET_VALID;
xpt_setup_ccb(&neg.ccb_h, path, /*priority*/1);
xpt_async(AC_TRANSFER_NEG, path, &neg);
}
if (path2 != NULL)
xpt_free_path(path2);
if (bootverbose) {
if (offset != 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
printf("%s: target %d synchronous at %sMHz%s, "
"offset = 0x%x\n", ahc_name(ahc),
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
devinfo->target, syncrate->rate,
(ppr_options & MSG_EXT_PPR_DT_REQ)
? " DT" : "", offset);
} else {
printf("%s: target %d using "
"asynchronous transfers\n",
ahc_name(ahc), devinfo->target);
}
}
}
if ((type & AHC_TRANS_GOAL) != 0) {
tinfo->goal.period = period;
tinfo->goal.offset = offset;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tinfo->goal.ppr_options = ppr_options;
}
if ((type & AHC_TRANS_USER) != 0) {
tinfo->user.period = period;
tinfo->user.offset = offset;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tinfo->user.ppr_options = ppr_options;
}
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
ahc_update_target_msg_request(ahc, devinfo, tinfo,
/*force*/FALSE,
paused);
}
static void
ahc_set_width(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct cam_path *path, u_int width, u_int type, int paused)
{
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int oldwidth;
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
int active = (type & AHC_TRANS_ACTIVE) == AHC_TRANS_ACTIVE;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
oldwidth = tinfo->current.width;
if ((type & AHC_TRANS_CUR) != 0 && oldwidth != width) {
struct cam_path *path2;
u_int scsirate;
scsirate = tinfo->scsirate;
scsirate &= ~WIDEXFER;
if (width == MSG_EXT_WDTR_BUS_16_BIT)
scsirate |= WIDEXFER;
tinfo->scsirate = scsirate;
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
if (active)
ahc_outb(ahc, SCSIRATE, scsirate);
tinfo->current.width = width;
/* If possible, update the XPT's notion of our transfer rate */
path2 = NULL;
if (path == NULL) {
int error;
error = ahc_create_path(ahc, devinfo, &path2);
if (error == CAM_REQ_CMP)
path = path2;
else
path2 = NULL;
}
if (path != NULL) {
struct ccb_trans_settings neg;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
neg.flags = CCB_TRANS_CURRENT_SETTINGS;
neg.bus_width = width;
neg.valid = CCB_TRANS_BUS_WIDTH_VALID;
xpt_setup_ccb(&neg.ccb_h, path, /*priority*/1);
xpt_async(AC_TRANSFER_NEG, path, &neg);
}
if (path2 != NULL)
xpt_free_path(path2);
if (bootverbose) {
printf("%s: target %d using %dbit transfers\n",
ahc_name(ahc), devinfo->target,
8 * (0x01 << width));
}
}
if ((type & AHC_TRANS_GOAL) != 0)
tinfo->goal.width = width;
if ((type & AHC_TRANS_USER) != 0)
tinfo->user.width = width;
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
ahc_update_target_msg_request(ahc, devinfo, tinfo,
/*force*/FALSE, paused);
}
static void
ahc_set_tags(struct ahc_softc *ahc, struct ahc_devinfo *devinfo, int enable)
{
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if (enable)
tstate->tagenable |= devinfo->target_mask;
else
tstate->tagenable &= ~devinfo->target_mask;
}
/*
* Attach all the sub-devices we can find
*/
int
ahc_attach(struct ahc_softc *ahc)
{
struct ccb_setasync csa;
struct cam_devq *devq;
int bus_id;
int bus_id2;
struct cam_sim *sim;
struct cam_sim *sim2;
struct cam_path *path;
struct cam_path *path2;
int count;
int s;
int error;
count = 0;
sim = NULL;
sim2 = NULL;
s = splcam();
/* Hook up our interrupt handler */
if ((error = bus_setup_intr(ahc->device, ahc->irq, INTR_TYPE_CAM,
ahc_intr, ahc, &ahc->ih)) != 0) {
device_printf(ahc->device, "bus_setup_intr() failed: %d\n",
error);
goto fail;
}
/*
* Attach secondary channel first if the user has
* declared it the primary channel.
*/
if ((ahc->flags & AHC_CHANNEL_B_PRIMARY) != 0) {
bus_id = 1;
bus_id2 = 0;
} else {
bus_id = 0;
bus_id2 = 1;
}
/*
* Create the device queue for our SIM(s).
*/
devq = cam_simq_alloc(AHC_SCB_MAX);
if (devq == NULL)
goto fail;
/*
* Construct our first channel SIM entry
*/
sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, ahc->unit,
1, AHC_SCB_MAX, devq);
if (sim == NULL) {
cam_simq_free(devq);
goto fail;
}
if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) {
cam_sim_free(sim, /*free_devq*/TRUE);
sim = NULL;
goto fail;
}
if (xpt_create_path(&path, /*periph*/NULL,
cam_sim_path(sim), CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(sim));
cam_sim_free(sim, /*free_devq*/TRUE);
sim = NULL;
goto fail;
}
xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_LOST_DEVICE;
csa.callback = ahc_async;
csa.callback_arg = sim;
xpt_action((union ccb *)&csa);
count++;
if (ahc->features & AHC_TWIN) {
sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc",
ahc, ahc->unit, 1,
AHC_SCB_MAX, devq);
if (sim2 == NULL) {
printf("ahc_attach: Unable to attach second "
"bus due to resource shortage");
goto fail;
}
if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) {
printf("ahc_attach: Unable to attach second "
"bus due to resource shortage");
/*
* We do not want to destroy the device queue
* because the first bus is using it.
*/
cam_sim_free(sim2, /*free_devq*/FALSE);
goto fail;
}
if (xpt_create_path(&path2, /*periph*/NULL,
cam_sim_path(sim2),
CAM_TARGET_WILDCARD,
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
xpt_bus_deregister(cam_sim_path(sim2));
cam_sim_free(sim2, /*free_devq*/FALSE);
sim2 = NULL;
goto fail;
}
xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_LOST_DEVICE;
csa.callback = ahc_async;
csa.callback_arg = sim2;
xpt_action((union ccb *)&csa);
count++;
}
fail:
if ((ahc->flags & AHC_CHANNEL_B_PRIMARY) != 0) {
ahc->sim_b = sim;
ahc->path_b = path;
ahc->sim = sim2;
ahc->path = path2;
} else {
ahc->sim = sim;
ahc->path = path;
ahc->sim_b = sim2;
ahc->path_b = path2;
}
splx(s);
return (count);
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
#if UNUSED
static void
ahc_scb_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct scb *scb)
{
role_t role;
int our_id;
if (scb->ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
our_id = scb->ccb->ccb_h.target_id;
role = ROLE_TARGET;
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
our_id = SCB_GET_CHANNEL(scb) == 'B' ? ahc->our_id_b : ahc->our_id;
role = ROLE_INITIATOR;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_compile_devinfo(devinfo, our_id, SCB_GET_TARGET(ahc, scb),
SCB_GET_LUN(scb), SCB_GET_CHANNEL(scb), role);
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
#endif
static void
ahc_fetch_devinfo(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int saved_scsiid;
role_t role;
int our_id;
if (ahc_inb(ahc, SSTAT0) & TARGET)
role = ROLE_TARGET;
else
role = ROLE_INITIATOR;
if (role == ROLE_TARGET
&& (ahc->features & AHC_MULTI_TID) != 0
&& (ahc_inb(ahc, SEQ_FLAGS) & CMDPHASE_PENDING) != 0) {
/* We were selected, so pull our id from TARGIDIN */
our_id = ahc_inb(ahc, TARGIDIN) & OID;
} else if ((ahc->features & AHC_ULTRA2) != 0)
our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID;
else
our_id = ahc_inb(ahc, SCSIID) & OID;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
saved_scsiid = ahc_inb(ahc, SAVED_SCSIID);
ahc_compile_devinfo(devinfo,
our_id,
SCSIID_TARGET(ahc, saved_scsiid),
ahc_inb(ahc, SAVED_LUN),
SCSIID_CHANNEL(ahc, saved_scsiid),
role);
}
static void
ahc_compile_devinfo(struct ahc_devinfo *devinfo, u_int our_id, u_int target,
u_int lun, char channel, role_t role)
{
devinfo->our_scsiid = our_id;
devinfo->target = target;
devinfo->lun = lun;
devinfo->target_offset = target;
devinfo->channel = channel;
devinfo->role = role;
if (channel == 'B')
devinfo->target_offset += 8;
devinfo->target_mask = (0x01 << devinfo->target_offset);
}
/*
* Catch an interrupt from the adapter
*/
void
ahc_intr(void *arg)
{
struct ahc_softc *ahc;
u_int intstat;
ahc = (struct ahc_softc *)arg;
intstat = ahc_inb(ahc, INTSTAT);
/*
* Any interrupts to process?
*/
#if NPCI > 0
if ((intstat & INT_PEND) == 0) {
if ((ahc->chip & AHC_PCI) != 0
&& (ahc->unsolicited_ints > 500)) {
if ((ahc_inb(ahc, ERROR) & PCIERRSTAT) != 0)
ahc_pci_intr(ahc);
ahc->unsolicited_ints = 0;
} else {
ahc->unsolicited_ints++;
}
return;
} else {
ahc->unsolicited_ints = 0;
}
#else
if ((intstat & INT_PEND) == 0)
return;
#endif
if (intstat & CMDCMPLT) {
ahc_outb(ahc, CLRINT, CLRCMDINT);
ahc_run_qoutfifo(ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((ahc->flags & AHC_TARGETMODE) != 0)
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
ahc_run_tqinfifo(ahc, /*paused*/FALSE);
}
if (intstat & BRKADRINT) {
/*
* We upset the sequencer :-(
* Lookup the error message
*/
int i, error, num_errors;
error = ahc_inb(ahc, ERROR);
num_errors = sizeof(hard_error)/sizeof(hard_error[0]);
for (i = 0; error != 1 && i < num_errors; i++)
error >>= 1;
panic("%s: brkadrint, %s at seqaddr = 0x%x\n",
ahc_name(ahc), hard_error[i].errmesg,
ahc_inb(ahc, SEQADDR0) |
(ahc_inb(ahc, SEQADDR1) << 8));
/* Tell everyone that this HBA is no longer availible */
ahc_abort_scbs(ahc, CAM_TARGET_WILDCARD, ALL_CHANNELS,
CAM_LUN_WILDCARD, SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_NO_HBA);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((intstat & (SEQINT|SCSIINT)) != 0)
ahc_pause_bug_fix(ahc);
if ((intstat & SEQINT) != 0)
ahc_handle_seqint(ahc, intstat);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((intstat & SCSIINT) != 0)
ahc_handle_scsiint(ahc, intstat);
}
static struct tmode_tstate *
ahc_alloc_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel)
{
struct tmode_tstate *master_tstate;
struct tmode_tstate *tstate;
int i, s;
master_tstate = ahc->enabled_targets[ahc->our_id];
if (channel == 'B') {
scsi_id += 8;
master_tstate = ahc->enabled_targets[ahc->our_id_b + 8];
}
if (ahc->enabled_targets[scsi_id] != NULL
&& ahc->enabled_targets[scsi_id] != master_tstate)
panic("%s: ahc_alloc_tstate - Target already allocated",
ahc_name(ahc));
tstate = malloc(sizeof(*tstate), M_DEVBUF, M_NOWAIT);
if (tstate == NULL)
return (NULL);
/*
* If we have allocated a master tstate, copy user settings from
* the master tstate (taken from SRAM or the EEPROM) for this
* channel, but reset our current and goal settings to async/narrow
* until an initiator talks to us.
*/
if (master_tstate != NULL) {
bcopy(master_tstate, tstate, sizeof(*tstate));
bzero(tstate->enabled_luns, sizeof(tstate->enabled_luns));
tstate->ultraenb = 0;
for (i = 0; i < 16; i++) {
bzero(&tstate->transinfo[i].current,
sizeof(tstate->transinfo[i].current));
bzero(&tstate->transinfo[i].goal,
sizeof(tstate->transinfo[i].goal));
}
} else
bzero(tstate, sizeof(*tstate));
s = splcam();
ahc->enabled_targets[scsi_id] = tstate;
splx(s);
return (tstate);
}
static void
ahc_free_tstate(struct ahc_softc *ahc, u_int scsi_id, char channel, int force)
{
struct tmode_tstate *tstate;
/* Don't clean up the entry for our initiator role */
if ((ahc->flags & AHC_INITIATORMODE) != 0
&& ((channel == 'B' && scsi_id == ahc->our_id_b)
|| (channel == 'A' && scsi_id == ahc->our_id))
&& force == FALSE)
return;
if (channel == 'B')
scsi_id += 8;
tstate = ahc->enabled_targets[scsi_id];
if (tstate != NULL)
free(tstate, M_DEVBUF);
ahc->enabled_targets[scsi_id] = NULL;
}
static void
ahc_handle_en_lun(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
{
struct tmode_tstate *tstate;
struct tmode_lstate *lstate;
struct ccb_en_lun *cel;
cam_status status;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int target;
u_int lun;
u_int target_mask;
char channel;
int s;
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, &lstate,
/* notfound_failure*/FALSE);
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
return;
}
cel = &ccb->cel;
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
channel = SIM_CHANNEL(ahc, sim);
target_mask = 0x01 << target;
if (channel == 'B')
target_mask <<= 8;
if (cel->enable != 0) {
u_int scsiseq;
/* Are we already enabled?? */
if (lstate != NULL) {
xpt_print_path(ccb->ccb_h.path);
printf("Lun already enabled\n");
ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
return;
}
if (cel->grp6_len != 0
|| cel->grp7_len != 0) {
/*
* Don't (yet?) support vendor
* specific commands.
*/
ccb->ccb_h.status = CAM_REQ_INVALID;
printf("Non-zero Group Codes\n");
return;
}
/*
* Seems to be okay.
* Setup our data structures.
*/
if (target != CAM_TARGET_WILDCARD && tstate == NULL) {
tstate = ahc_alloc_tstate(ahc, target, channel);
if (tstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printf("Couldn't allocate tstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
}
lstate = malloc(sizeof(*lstate), M_DEVBUF, M_NOWAIT);
if (lstate == NULL) {
xpt_print_path(ccb->ccb_h.path);
printf("Couldn't allocate lstate\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
bzero(lstate, sizeof(*lstate));
status = xpt_create_path(&lstate->path, /*periph*/NULL,
xpt_path_path_id(ccb->ccb_h.path),
xpt_path_target_id(ccb->ccb_h.path),
xpt_path_lun_id(ccb->ccb_h.path));
if (status != CAM_REQ_CMP) {
free(lstate, M_DEVBUF);
xpt_print_path(ccb->ccb_h.path);
printf("Couldn't allocate path\n");
ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
return;
}
SLIST_INIT(&lstate->accept_tios);
SLIST_INIT(&lstate->immed_notifies);
s = splcam();
pause_sequencer(ahc);
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = lstate;
ahc->enabled_luns++;
if ((ahc->features & AHC_MULTI_TID) != 0) {
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
u_int targid_mask;
targid_mask = ahc_inb(ahc, TARGID)
| (ahc_inb(ahc, TARGID + 1) << 8);
targid_mask |= target_mask;
ahc_outb(ahc, TARGID, targid_mask);
ahc_outb(ahc, TARGID+1, (targid_mask >> 8));
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
ahc_update_scsiid(ahc, targid_mask);
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int our_id;
char channel;
channel = SIM_CHANNEL(ahc, sim);
our_id = SIM_SCSI_ID(ahc, sim);
/*
* This can only happen if selections
* are not enabled
*/
if (target != our_id) {
u_int sblkctl;
char cur_channel;
int swap;
sblkctl = ahc_inb(ahc, SBLKCTL);
cur_channel = (sblkctl & SELBUSB)
? 'B' : 'A';
if ((ahc->features & AHC_TWIN) == 0)
cur_channel = 'A';
swap = cur_channel != channel;
if (channel == 'A')
ahc->our_id = target;
else
ahc->our_id_b = target;
if (swap)
ahc_outb(ahc, SBLKCTL,
sblkctl ^ SELBUSB);
ahc_outb(ahc, SCSIID, target);
if (swap)
ahc_outb(ahc, SBLKCTL, sblkctl);
}
}
} else
ahc->black_hole = lstate;
/* Allow select-in operations */
if (ahc->black_hole != NULL && ahc->enabled_luns > 0) {
scsiseq = ahc_inb(ahc, SCSISEQ_TEMPLATE);
scsiseq |= ENSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq);
scsiseq = ahc_inb(ahc, SCSISEQ);
scsiseq |= ENSELI;
ahc_outb(ahc, SCSISEQ, scsiseq);
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_print_path(ccb->ccb_h.path);
printf("Lun now enabled for target mode\n");
} else {
struct ccb_hdr *elm;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
int i, empty;
if (lstate == NULL) {
ccb->ccb_h.status = CAM_LUN_INVALID;
return;
}
s = splcam();
ccb->ccb_h.status = CAM_REQ_CMP;
LIST_FOREACH(elm, &ahc->pending_ccbs, sim_links.le) {
if (elm->func_code == XPT_CONT_TARGET_IO
&& !xpt_path_comp(elm->path, ccb->ccb_h.path)){
printf("CTIO pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
splx(s);
return;
}
}
if (SLIST_FIRST(&lstate->accept_tios) != NULL) {
printf("ATIOs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
if (SLIST_FIRST(&lstate->immed_notifies) != NULL) {
printf("INOTs pending\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if (ccb->ccb_h.status != CAM_REQ_CMP) {
splx(s);
return;
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
xpt_print_path(ccb->ccb_h.path);
printf("Target mode disabled\n");
xpt_free_path(lstate->path);
free(lstate, M_DEVBUF);
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
pause_sequencer(ahc);
/* Can we clean up the target too? */
if (target != CAM_TARGET_WILDCARD) {
tstate->enabled_luns[lun] = NULL;
ahc->enabled_luns--;
for (empty = 1, i = 0; i < 8; i++)
if (tstate->enabled_luns[i] != NULL) {
empty = 0;
break;
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if (empty) {
ahc_free_tstate(ahc, target, channel,
/*force*/FALSE);
if (ahc->features & AHC_MULTI_TID) {
u_int targid_mask;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
targid_mask = ahc_inb(ahc, TARGID)
| (ahc_inb(ahc, TARGID + 1)
<< 8);
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
targid_mask &= ~target_mask;
ahc_outb(ahc, TARGID, targid_mask);
ahc_outb(ahc, TARGID+1,
(targid_mask >> 8));
ahc_update_scsiid(ahc, targid_mask);
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
}
} else {
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
ahc->black_hole = NULL;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
/*
* We can't allow selections without
* our black hole device.
*/
empty = TRUE;
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if (ahc->enabled_luns == 0) {
/* Disallow select-in */
u_int scsiseq;
scsiseq = ahc_inb(ahc, SCSISEQ_TEMPLATE);
scsiseq &= ~ENSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq);
scsiseq = ahc_inb(ahc, SCSISEQ);
scsiseq &= ~ENSELI;
ahc_outb(ahc, SCSISEQ, scsiseq);
}
unpause_sequencer(ahc);
splx(s);
}
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
static void
ahc_update_scsiid(struct ahc_softc *ahc, u_int targid_mask)
{
u_int scsiid_mask;
u_int scsiid;
if ((ahc->features & AHC_MULTI_TID) == 0)
panic("ahc_update_scsiid called on non-multitid unit\n");
/*
* Since we will rely on the the TARGID mask
* for selection enables, ensure that OID
* in SCSIID is not set to some other ID
* that we don't want to allow selections on.
*/
if ((ahc->features & AHC_ULTRA2) != 0)
scsiid = ahc_inb(ahc, SCSIID_ULTRA2);
else
scsiid = ahc_inb(ahc, SCSIID);
scsiid_mask = 0x1 << (scsiid & OID);
if ((targid_mask & scsiid_mask) == 0) {
u_int our_id;
/* ffs counts from 1 */
our_id = ffs(targid_mask);
if (our_id == 0)
our_id = ahc->our_id;
else
our_id--;
scsiid &= TID;
scsiid |= our_id;
}
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIID_ULTRA2, scsiid);
else
ahc_outb(ahc, SCSIID, scsiid);
}
static int
ahc_handle_target_cmd(struct ahc_softc *ahc, struct target_cmd *cmd)
{
struct tmode_tstate *tstate;
struct tmode_lstate *lstate;
struct ccb_accept_tio *atio;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t *byte;
int initiator;
int target;
int lun;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
initiator = SCSIID_TARGET(ahc, cmd->scsiid);
target = SCSIID_OUR_ID(cmd->scsiid);
lun = (cmd->identify & MSG_IDENTIFY_LUNMASK);
byte = cmd->bytes;
tstate = ahc->enabled_targets[target];
lstate = NULL;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (tstate != NULL)
lstate = tstate->enabled_luns[lun];
/*
* Commands for disabled luns go to the black hole driver.
*/
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if (lstate == NULL)
lstate = ahc->black_hole;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
atio = (struct ccb_accept_tio*)SLIST_FIRST(&lstate->accept_tios);
if (atio == NULL) {
ahc->flags |= AHC_TQINFIFO_BLOCKED;
/*
* Wait for more ATIOs from the peripheral driver for this lun.
*/
return (1);
} else
ahc->flags &= ~AHC_TQINFIFO_BLOCKED;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
#if 0
printf("Incoming command from %d for %d:%d%s\n",
initiator, target, lun,
lstate == ahc->black_hole ? "(Black Holed)" : "");
#endif
SLIST_REMOVE_HEAD(&lstate->accept_tios, sim_links.sle);
if (lstate == ahc->black_hole) {
/* Fill in the wildcards */
atio->ccb_h.target_id = target;
atio->ccb_h.target_lun = lun;
}
/*
* Package it up and send it off to
* whomever has this lun enabled.
*/
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
atio->sense_len = 0;
atio->init_id = initiator;
if (byte[0] != 0xFF) {
/* Tag was included */
atio->tag_action = *byte++;
atio->tag_id = *byte++;
atio->ccb_h.flags = CAM_TAG_ACTION_VALID;
} else {
atio->ccb_h.flags = 0;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
byte++;
/* Okay. Now determine the cdb size based on the command code */
switch (*byte >> CMD_GROUP_CODE_SHIFT) {
case 0:
atio->cdb_len = 6;
break;
case 1:
case 2:
atio->cdb_len = 10;
break;
case 4:
atio->cdb_len = 16;
break;
case 5:
atio->cdb_len = 12;
break;
case 3:
default:
/* Only copy the opcode. */
atio->cdb_len = 1;
printf("Reserved or VU command code type encountered\n");
break;
}
bcopy(byte, atio->cdb_io.cdb_bytes, atio->cdb_len);
atio->ccb_h.status |= CAM_CDB_RECVD;
if ((cmd->identify & MSG_IDENTIFY_DISCFLAG) == 0) {
/*
* We weren't allowed to disconnect.
* We're hanging on the bus until a
* continue target I/O comes in response
* to this accept tio.
*/
#if 0
printf("Received Immediate Command %d:%d:%d - %p\n",
initiator, target, lun, ahc->pending_device);
#endif
ahc->pending_device = lstate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_freeze_ccb((union ccb *)atio);
atio->ccb_h.flags |= CAM_DIS_DISCONNECT;
}
xpt_done((union ccb*)atio);
return (0);
}
static void
ahc_handle_seqint(struct ahc_softc *ahc, u_int intstat)
{
struct scb *scb;
struct ahc_devinfo devinfo;
ahc_fetch_devinfo(ahc, &devinfo);
/*
* Clear the upper byte that holds SEQINT status
* codes and clear the SEQINT bit. We will unpause
* the sequencer, if appropriate, after servicing
* the request.
*/
ahc_outb(ahc, CLRINT, CLRSEQINT);
switch (intstat & SEQINT_MASK) {
case BAD_STATUS:
{
u_int scb_index;
struct hardware_scb *hscb;
struct ccb_scsiio *csio;
/*
* The sequencer will notify us when a command
* has an error that would be of interest to
* the kernel. This allows us to leave the sequencer
* running in the common case of command completes
* without error. The sequencer will already have
* dma'd the SCB back up to us, so we can reference
* the in kernel copy directly.
*/
scb_index = ahc_inb(ahc, SCB_TAG);
scb = &ahc->scb_data->scbarray[scb_index];
/*
* Set the default return value to 0 (don't
* send sense). The sense code will change
* this if needed.
*/
ahc_outb(ahc, RETURN_1, 0);
if (!(scb_index < ahc->scb_data->numscbs
&& (scb->flags & SCB_ACTIVE) != 0)) {
printf("%s:%c:%d: ahc_intr - referenced scb "
"not valid during seqint 0x%x scb(%d)\n",
ahc_name(ahc), devinfo.channel,
devinfo.target, intstat, scb_index);
goto unpause;
}
hscb = scb->hscb;
/* Don't want to clobber the original sense code */
if ((scb->flags & SCB_SENSE) != 0) {
/*
* Clear the SCB_SENSE Flag and have
* the sequencer do a normal command
* complete.
*/
scb->flags &= ~SCB_SENSE;
ahcsetccbstatus(scb->ccb, CAM_AUTOSENSE_FAIL);
break;
}
ahcsetccbstatus(scb->ccb, CAM_SCSI_STATUS_ERROR);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* Freeze the queue until the client sees the error. */
ahc_freeze_devq(ahc, scb->ccb->ccb_h.path);
ahc_freeze_ccb(scb->ccb);
csio = &scb->ccb->csio;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
csio->scsi_status = hscb->shared_data.status.scsi_status;
switch (csio->scsi_status) {
case SCSI_STATUS_OK:
printf("%s: Interrupted for staus of 0???\n",
ahc_name(ahc));
break;
case SCSI_STATUS_CMD_TERMINATED:
case SCSI_STATUS_CHECK_COND:
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOWSENSE) {
xpt_print_path(csio->ccb_h.path);
printf("SCB %d: requests Check Status\n",
scb->hscb->tag);
}
#endif
if ((csio->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0) {
struct ahc_dma_seg *sg;
struct scsi_sense *sc;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_initiator_tinfo *targ_info;
struct tmode_tstate *tstate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_transinfo *tinfo;
targ_info =
ahc_fetch_transinfo(ahc,
devinfo.channel,
devinfo.our_scsiid,
devinfo.target,
&tstate);
tinfo = &targ_info->current;
sg = scb->sg_list;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sc = (struct scsi_sense *)
(&hscb->shared_data.cdb);
/*
* Save off the residual if there is one.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_check_residual(scb))
ahc_calc_residual(scb);
else
scb->ccb->csio.resid = 0;
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOWSENSE) {
xpt_print_path(csio->ccb_h.path);
printf("Sending Sense\n");
}
#endif
sg->addr = ahc->scb_data->sense_busaddr
+ (hscb->tag*sizeof(struct scsi_sense_data));
sg->len = MIN(sizeof(struct scsi_sense_data),
csio->sense_len);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg->len |= AHC_DMA_LAST_SEG;
sc->opcode = REQUEST_SENSE;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sc->byte2 = 0;
if (tinfo->protocol_version <= SCSI_REV_2
&& SCB_GET_LUN(scb) < 8)
sc->byte2 = SCB_GET_LUN(scb) << 5;
sc->unused[0] = 0;
sc->unused[1] = 0;
sc->length = sg->len;
sc->control = 0;
/*
* Would be nice to preserve DISCENB here,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* but due to the way we manage busy targets,
* we can't.
*/
hscb->control = 0;
/*
* This request sense could be because the
* the device lost power or in some other
* way has lost our transfer negotiations.
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
* Renegotiate if appropriate. Unit attention
* errors will be reported before any data
* phases occur.
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (scb->ccb->csio.resid
== scb->ccb->csio.dxfer_len) {
ahc_update_target_msg_request(ahc,
&devinfo,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
targ_info,
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
/*force*/TRUE,
/*paused*/TRUE);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
hscb->cdb_len = sizeof(*sc);
hscb->dataptr = sg->addr;
hscb->datacnt = sg->len;
hscb->sgptr = scb->sg_list_phys | SG_FULL_RESID;
scb->sg_count = 1;
scb->flags |= SCB_SENSE;
ahc_outb(ahc, RETURN_1, SEND_SENSE);
/*
* Ensure we have enough time to actually
* retrieve the sense.
*/
untimeout(ahc_timeout, (caddr_t)scb,
scb->ccb->ccb_h.timeout_ch);
scb->ccb->ccb_h.timeout_ch =
timeout(ahc_timeout, (caddr_t)scb, 5 * hz);
}
break;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
default:
break;
}
break;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
case NO_MATCH:
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* Ensure we don't leave the selection hardware on */
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
printf("%s:%c:%d: no active SCB for reconnecting "
"target - issuing BUS DEVICE RESET\n",
ahc_name(ahc), devinfo.channel, devinfo.target);
printf("SAVED_SCSIID == 0x%x, SAVED_LUN == 0x%x, "
"ARG_1 == 0x%x ARG_2 = 0x%x, SEQ_FLAGS == 0x%x\n",
ahc_inb(ahc, SAVED_SCSIID), ahc_inb(ahc, SAVED_LUN),
ahc_inb(ahc, ARG_1), ahc_inb(ahc, ARG_2),
ahc_inb(ahc, SEQ_FLAGS));
printf("SCB_SCSIID == 0x%x, SCB_LUN == 0x%x, "
"SCB_TAG == 0x%x\n",
ahc_inb(ahc, SCB_SCSIID), ahc_inb(ahc, SCB_LUN),
ahc_inb(ahc, SCB_TAG));
ahc->msgout_buf[0] = MSG_BUS_DEV_RESET;
ahc->msgout_len = 1;
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
ahc_outb(ahc, MSG_OUT, HOST_MSG);
ahc_outb(ahc, SCSISIGO, ahc_inb(ahc, LASTPHASE) | ATNO);
break;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
case SEND_REJECT:
{
u_int rejbyte = ahc_inb(ahc, ACCUM);
printf("%s:%c:%d: Warning - unknown message received from "
"target (0x%x). Rejecting\n",
ahc_name(ahc), devinfo.channel, devinfo.target, rejbyte);
break;
}
case NO_IDENT:
{
/*
* The reconnecting target either did not send an identify
* message, or did, but we didn't find an SCB to match and
* before it could respond to our ATN/abort, it hit a dataphase.
* The only safe thing to do is to blow it away with a bus
* reset.
*/
int found;
printf("%s:%c:%d: Target did not send an IDENTIFY message. "
"LASTPHASE = 0x%x, SAVED_SCSIID == 0x%x\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
ahc_inb(ahc, LASTPHASE), ahc_inb(ahc, SAVED_SCSIID));
found = ahc_reset_channel(ahc, devinfo.channel,
/*initiate reset*/TRUE);
printf("%s: Issued Channel %c Bus Reset. "
"%d SCBs aborted\n", ahc_name(ahc), devinfo.channel,
found);
return;
}
case IGN_WIDE_RES:
ahc_handle_ign_wide_residue(ahc, &devinfo);
break;
case BAD_PHASE:
{
u_int lastphase;
lastphase = ahc_inb(ahc, LASTPHASE);
if (lastphase == P_BUSFREE) {
printf("%s:%c:%d: Missed busfree. Curphase = 0x%x\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
ahc_inb(ahc, SCSISIGI));
restart_sequencer(ahc);
return;
} else {
printf("%s:%c:%d: unknown scsi bus phase %x. "
"Attempting to continue\n",
ahc_name(ahc), devinfo.channel, devinfo.target,
ahc_inb(ahc, SCSISIGI));
}
break;
}
case HOST_MSG_LOOP:
{
/*
* The sequencer has encountered a message phase
* that requires host assistance for completion.
* While handling the message phase(s), we will be
* notified by the sequencer after each byte is
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* transfered so we can track bus phase changes.
*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* If this is the first time we've seen a HOST_MSG_LOOP
* interrupt, initialize the state of the host message
* loop.
*/
if (ahc->msg_type == MSG_TYPE_NONE) {
u_int bus_phase;
bus_phase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
if (bus_phase != P_MESGIN
&& bus_phase != P_MESGOUT) {
printf("ahc_intr: HOST_MSG_LOOP bad "
"phase 0x%x\n",
bus_phase);
/*
* Probably transitioned to bus free before
* we got here. Just punt the message.
*/
ahc_clear_intstat(ahc);
restart_sequencer(ahc);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
return;
}
if (devinfo.role == ROLE_INITIATOR) {
struct scb *scb;
u_int scb_index;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = &ahc->scb_data->scbarray[scb_index];
if (bus_phase == P_MESGOUT)
ahc_setup_initiator_msgout(ahc,
&devinfo,
scb);
else {
ahc->msg_type =
MSG_TYPE_INITIATOR_MSGIN;
ahc->msgin_index = 0;
}
} else {
if (bus_phase == P_MESGOUT) {
ahc->msg_type =
MSG_TYPE_TARGET_MSGOUT;
ahc->msgin_index = 0;
} else
/* XXX Ever executed??? */
ahc_setup_target_msgin(ahc, &devinfo);
}
}
/* Pass a NULL path so that handlers generate their own */
ahc_handle_message_phase(ahc, /*path*/NULL);
break;
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
case PERR_DETECTED:
{
/*
* If we've cleared the parity error interrupt
* but the sequencer still believes that SCSIPERR
* is true, it must be that the parity error is
* for the currently presented byte on the bus,
* and we are not in a phase (data-in) where we will
* eventually ack this byte. Ack the byte and
* throw it away in the hope that the target will
* take us to message out to deliver the appropriate
* error message.
*/
if ((intstat & SCSIINT) == 0
&& (ahc_inb(ahc, SSTAT1) & SCSIPERR) != 0) {
u_int curphase;
/*
* The hardware will only let you ack bytes
* if the expected phase in SCSISIGO matches
* the current phase. Make sure this is
* currently the case.
*/
curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
ahc_outb(ahc, LASTPHASE, curphase);
ahc_outb(ahc, SCSISIGO, curphase);
ahc_inb(ahc, SCSIDATL);
}
break;
}
case DATA_OVERRUN:
{
/*
* When the sequencer detects an overrun, it
* places the controller in "BITBUCKET" mode
* and allows the target to complete its transfer.
* Unfortunately, none of the counters get updated
* when the controller is in this mode, so we have
* no way of knowing how large the overrun was.
*/
u_int scbindex = ahc_inb(ahc, SCB_TAG);
u_int lastphase = ahc_inb(ahc, LASTPHASE);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int i;
scb = &ahc->scb_data->scbarray[scbindex];
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
for (i = 0; i < num_phases; i++) {
if (lastphase == phase_table[i].phase)
break;
}
xpt_print_path(scb->ccb->ccb_h.path);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
printf("data overrun detected %s."
" Tag == 0x%x.\n",
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
phase_table[i].phasemsg,
scb->hscb->tag);
xpt_print_path(scb->ccb->ccb_h.path);
printf("%s seen Data Phase. Length = %d. NumSGs = %d.\n",
ahc_inb(ahc, SEQ_FLAGS) & DPHASE ? "Have" : "Haven't",
scb->ccb->csio.dxfer_len, scb->sg_count);
if (scb->sg_count > 0) {
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
for (i = 0; i < scb->sg_count; i++) {
printf("sg[%d] - Addr 0x%x : Length %d\n",
i,
scb->sg_list[i].addr,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scb->sg_list[i].len & AHC_SG_LEN_MASK);
}
}
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Set this and it will take effect when the
* target does a command complete.
*/
ahc_freeze_devq(ahc, scb->ccb->ccb_h.path);
ahcsetccbstatus(scb->ccb, CAM_DATA_RUN_ERR);
ahc_freeze_ccb(scb->ccb);
break;
}
case TRACEPOINT:
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
printf("SAVED_SCSIID %x, SAVED_LUN %x, SCBPTR %x\n",
ahc_inb(ahc, SAVED_SCSIID), ahc_inb(ahc, SAVED_LUN),
ahc_inb(ahc, SCBPTR));
#if 0
printf("%s: SCB_DATAPTR = %x, SCB_DATACNT = %x\n",
ahc_name(ahc),
ahc_inb(ahc, SCB_DATAPTR)
| (ahc_inb(ahc, SCB_DATAPTR + 1) << 8)
| (ahc_inb(ahc, SCB_DATAPTR + 2) << 16)
| (ahc_inb(ahc, SCB_DATAPTR + 3) << 24),
ahc_inb(ahc, SCB_DATACNT)
| (ahc_inb(ahc, SCB_DATACNT + 1) << 8)
| (ahc_inb(ahc, SCB_DATACNT + 2) << 16)
| (ahc_inb(ahc, SCB_DATACNT + 3) << 24));
printf("SCSIRATE = %x\n", ahc_inb(ahc, SCSIRATE));
printf("SG_CACHEPTR = %x\n", ahc_inb(ahc, SINDEX));
printf("DFCNTRL = %x, DFSTATUS = %x\n",
ahc_inb(ahc, DFCNTRL),
ahc_inb(ahc, DFSTATUS));
if ((ahc->features & AHC_CMD_CHAN) != 0) {
printf("CCHADDR = 0x%x\n",
ahc_inb(ahc, CCHADDR)
| (ahc_inb(ahc, CCHADDR + 1) << 8)
| (ahc_inb(ahc, CCHADDR + 2) << 16)
| (ahc_inb(ahc, CCHADDR + 3) << 24));
} else {
printf("HADDR = 0x%x\n",
ahc_inb(ahc, HADDR)
| (ahc_inb(ahc, HADDR + 1) << 8)
| (ahc_inb(ahc, HADDR + 2) << 16)
| (ahc_inb(ahc, HADDR + 3) << 24));
}
#endif
break;
}
case TRACEPOINT2:
{
printf("SINDEX = %x\n", ahc_inb(ahc, SINDEX));
printf("SCSIRATE = %x\n", ahc_inb(ahc, SCSIRATE));
#if 0
printf("SCB_RESIDUAL_SGPTR = %x, SCB_RESIDUAL_DATACNT = %x\n",
ahc_inb(ahc, SCB_RESIDUAL_SGPTR)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 1) << 8)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 3) << 24),
ahc_inb(ahc, SCB_RESIDUAL_DATACNT)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT + 1) << 8)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT + 2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT + 3) << 24));
printf("DATA_COUNT_ODD = %x\n", ahc_inb(ahc, DATA_COUNT_ODD));
printf("SINDEX = %x\n", ahc_inb(ahc, SINDEX));
printf("SCB_SGPTR %x, SCB_RESIDUAL_SGPTR %x\n",
ahc_inb(ahc, SCB_SGPTR),
ahc_inb(ahc, SCB_RESIDUAL_SGPTR));
printf("SAVED_SCSIID %x, SAVED_LUN %d, "
"DISCONNECTED_SCBH %d\n",
ahc_inb(ahc, SAVED_SCSIID),
ahc_inb(ahc, SAVED_LUN),
ahc_inb(ahc, DISCONNECTED_SCBH));
int i;
if (ahc->unit != 1)
break;
for (i = 0; i < 32;) {
printf("0x%x 0x%x 0x%x 0x%x\n",
ahc_inb(ahc, SCB_CONTROL + i),
ahc_inb(ahc, SCB_CONTROL + i + 1),
ahc_inb(ahc, SCB_CONTROL + i + 2),
ahc_inb(ahc, SCB_CONTROL + i + 3));
i += 4;
}
#endif
#if 0
printf("SSTAT1 == 0x%x\n", ahc_inb(ahc, SSTAT1));
printf("SSTAT0 == 0x%x\n", ahc_inb(ahc, SSTAT0));
printf(", SCSISIGI == 0x%x\n", ahc_inb(ahc, SCSISIGI));
printf("TRACEPOINT: CCHCNT = %d, SG_COUNT = %d\n",
ahc_inb(ahc, CCHCNT), ahc_inb(ahc, SG_COUNT));
printf("TRACEPOINT: SCB_TAG = %d\n", ahc_inb(ahc, SCB_TAG));
printf("TRACEPOINT1: CCHADDR = %d, CCHCNT = %d, SCBPTR = %d\n",
ahc_inb(ahc, CCHADDR)
| (ahc_inb(ahc, CCHADDR+1) << 8)
| (ahc_inb(ahc, CCHADDR+2) << 16)
| (ahc_inb(ahc, CCHADDR+3) << 24),
ahc_inb(ahc, CCHCNT)
| (ahc_inb(ahc, CCHCNT+1) << 8)
| (ahc_inb(ahc, CCHCNT+2) << 16),
ahc_inb(ahc, SCBPTR));
printf("TRACEPOINT: WAITING_SCBH = %d\n", ahc_inb(ahc, WAITING_SCBH));
printf("TRACEPOINT: SCB_TAG = %d\n", ahc_inb(ahc, SCB_TAG));
#endif
break;
}
default:
printf("ahc_intr: seqint, "
"intstat == 0x%x, scsisigi = 0x%x\n",
intstat, ahc_inb(ahc, SCSISIGI));
break;
}
unpause:
/*
* The sequencer is paused immediately on
* a SEQINT, so we should restart it when
* we're done.
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
}
static void
ahc_handle_scsiint(struct ahc_softc *ahc, u_int intstat)
{
u_int scb_index;
u_int status;
struct scb *scb;
char cur_channel;
char intr_channel;
if ((ahc->features & AHC_TWIN) != 0
&& ((ahc_inb(ahc, SBLKCTL) & SELBUSB) != 0))
cur_channel = 'B';
else
cur_channel = 'A';
intr_channel = cur_channel;
status = ahc_inb(ahc, SSTAT1);
if (status == 0) {
if ((ahc->features & AHC_TWIN) != 0) {
/* Try the other channel */
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) ^ SELBUSB);
status = ahc_inb(ahc, SSTAT1);
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) ^ SELBUSB);
intr_channel = (cur_channel == 'A') ? 'B' : 'A';
}
if (status == 0) {
printf("%s: Spurious SCSI interrupt\n", ahc_name(ahc));
return;
}
}
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index < ahc->scb_data->numscbs) {
scb = &ahc->scb_data->scbarray[scb_index];
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if ((scb->flags & SCB_ACTIVE) == 0
|| (ahc_inb(ahc, SEQ_FLAGS) & IDENTIFY_SEEN) == 0)
scb = NULL;
} else
scb = NULL;
if ((status & SCSIRSTI) != 0) {
printf("%s: Someone reset channel %c\n",
ahc_name(ahc), intr_channel);
ahc_reset_channel(ahc, intr_channel, /* Initiate Reset */FALSE);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
} else if ((status & SCSIPERR) != 0) {
/*
* Determine the bus phase and queue an appropriate message.
* SCSIPERR is latched true as soon as a parity error
* occurs. If the sequencer acked the transfer that
* caused the parity error and the currently presented
* transfer on the bus has correct parity, SCSIPERR will
* be cleared by CLRSCSIPERR. Use this to determine if
* we should look at the last phase the sequencer recorded,
* or the current phase presented on the bus.
*/
u_int mesg_out;
u_int curphase;
u_int errorphase;
u_int lastphase;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int i;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
lastphase = ahc_inb(ahc, LASTPHASE);
curphase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
ahc_outb(ahc, CLRSINT1, CLRSCSIPERR);
/*
* For all phases save DATA, the sequencer won't
* automatically ack a byte that has a parity error
* in it. So the only way that the current phase
* could be 'data-in' is if the parity error is for
* an already acked byte in the data phase. During
* synchronous data-in transfers, we may actually
* ack bytes before latching the current phase in
* LASTPHASE, leading to the discrepancy between
* curphase and lastphase.
*/
if ((ahc_inb(ahc, SSTAT1) & SCSIPERR) != 0
|| curphase == P_DATAIN)
errorphase = curphase;
else
errorphase = lastphase;
for (i = 0; i < num_phases; i++) {
if (errorphase == phase_table[i].phase)
break;
}
mesg_out = phase_table[i].mesg_out;
if (scb != NULL)
xpt_print_path(scb->ccb->ccb_h.path);
else
printf("%s:%c:%d: ", ahc_name(ahc),
intr_channel,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SCSIID_TARGET(ahc, ahc_inb(ahc, SAVED_SCSIID)));
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
printf("parity error detected %s. "
"SEQADDR(0x%x) SCSIRATE(0x%x)\n",
phase_table[i].phasemsg,
ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8),
ahc_inb(ahc, SCSIRATE));
/*
* We've set the hardware to assert ATN if we
* get a parity error on "in" phases, so all we
* need to do is stuff the message buffer with
* the appropriate message. "In" phases have set
* mesg_out to something other than MSG_NOP.
*/
if (mesg_out != MSG_NOOP) {
if (ahc->msg_type != MSG_TYPE_NONE)
ahc->send_msg_perror = TRUE;
else
ahc_outb(ahc, MSG_OUT, mesg_out);
}
ahc_outb(ahc, CLRINT, CLRSCSIINT);
unpause_sequencer(ahc);
} else if ((status & BUSFREE) != 0
&& (ahc_inb(ahc, SIMODE1) & ENBUSFREE) != 0) {
/*
* First look at what phase we were last in.
* If its message out, chances are pretty good
* that the busfree was in response to one of
* our abort requests.
*/
u_int lastphase = ahc_inb(ahc, LASTPHASE);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int saved_scsiid = ahc_inb(ahc, SAVED_SCSIID);
u_int saved_lun = ahc_inb(ahc, SAVED_LUN);
u_int target = SCSIID_TARGET(ahc, saved_scsiid);
u_int initiator_role_id = SCSIID_OUR_ID(saved_scsiid);
char channel = SCSIID_CHANNEL(ahc, saved_scsiid);
int printerror = 1;
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
if (lastphase == P_MESGOUT) {
u_int message;
u_int tag;
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
message = ahc->msgout_buf[ahc->msgout_index - 1];
tag = SCB_LIST_NULL;
switch (message) {
case MSG_ABORT_TAG:
tag = scb->hscb->tag;
/* FALLTRHOUGH */
case MSG_ABORT:
xpt_print_path(scb->ccb->ccb_h.path);
printf("SCB %d - Abort %s Completed.\n",
1998-09-16 03:26:10 +00:00
scb->hscb->tag, tag == SCB_LIST_NULL ?
"" : "Tag");
ahc_abort_scbs(ahc, target, channel,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
saved_lun, tag,
ROLE_INITIATOR,
CAM_REQ_ABORTED);
printerror = 0;
break;
case MSG_BUS_DEV_RESET:
{
struct ahc_devinfo devinfo;
/*
* Don't mark the user's request for this BDR
* as completing with CAM_BDR_SENT. CAM3
* specifies CAM_REQ_CMP.
*/
if (scb != NULL
&& scb->ccb->ccb_h.func_code == XPT_RESET_DEV
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&& ahc_match_scb(ahc, scb, target, channel,
saved_lun,
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
SCB_LIST_NULL,
ROLE_INITIATOR)) {
ahcsetccbstatus(scb->ccb, CAM_REQ_CMP);
}
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
ahc_compile_devinfo(&devinfo,
initiator_role_id,
target,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
saved_lun,
Use TCL_CHANNEL/SCSI_ID/etc. macros in more locations. Don't mess with the IRQMS bit in the host control register unless we are an aic7770 chip. Use calling context to determine if the card is already paused when we update the target message request bit field in controller scratch ram. Looking at the paused bit in the HCNTRL register opened up a race condition. Insert delays in the target message request update routine as a temporary work around for what looks like a chip bug. I'm still investigating this one. Fix the Abort/Abort Tag/BDR handler to pull its message from the message buffer in our softc instead of attempting to get it from a register on the controller. The message is never recorded by the controller in the new message scheme. Don't rely on having an SCB when a BDR occurs. We can issue these during invalid reconnects to. Fix a few cases where we were restarting the sequencer but then still falling out of a switch statement to unpause the sequencer again. This could cause us to mess up sequencer state if it generated another pausing interrupt between the time of the restart and unpause. Kill the 'transceiver settle' loop during card initialization. I failed to realize that a controller that is not connected to any cables will never settle or enable the SCSI transceivers at all. The correct solution is to monitor the IOERR interrupt which indicates that the transceiver state has changed (UW<->LVD). Modify the aic7xxx assembler to properly echo input when stdin is not a tty.
1999-03-23 07:24:29 +00:00
channel,
ROLE_INITIATOR);
ahc_handle_devreset(ahc, &devinfo,
CAM_BDR_SENT, AC_SENT_BDR,
"Bus Device Reset",
/*verbose_level*/0);
printerror = 0;
break;
}
default:
break;
}
}
if (printerror != 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int i;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if (scb != NULL) {
u_int tag;
if ((scb->hscb->control & TAG_ENB) != 0)
tag = scb->hscb->tag;
else
tag = SCB_LIST_NULL;
ahc_abort_scbs(ahc, target, channel,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SCB_GET_LUN(scb), tag,
ROLE_INITIATOR,
CAM_UNEXP_BUSFREE);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
xpt_print_path(scb->ccb->ccb_h.path);
} else {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/*
* We had not fully identified this connection,
* so we cannot abort anything.
*/
printf("%s: ", ahc_name(ahc));
}
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
for (i = 0; i < num_phases; i++) {
if (lastphase == phase_table[i].phase)
break;
}
printf("Unexpected busfree %s\n"
"SEQADDR == 0x%x\n",
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
phase_table[i].phasemsg, ahc_inb(ahc, SEQADDR0)
| (ahc_inb(ahc, SEQADDR1) << 8));
}
ahc_clear_msg_state(ahc);
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENBUSFREE);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_outb(ahc, CLRSINT1, CLRBUSFREE|CLRSCSIPERR);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
restart_sequencer(ahc);
} else if ((status & SELTO) != 0) {
u_int scbptr;
scbptr = ahc_inb(ahc, WAITING_SCBH);
ahc_outb(ahc, SCBPTR, scbptr);
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index < ahc->scb_data->numscbs) {
scb = &ahc->scb_data->scbarray[scb_index];
if ((scb->flags & SCB_ACTIVE) == 0)
scb = NULL;
} else
scb = NULL;
if (scb == NULL) {
printf("%s: ahc_intr - referenced scb not "
"valid during SELTO scb(%d, %d)\n",
ahc_name(ahc), scbptr, scb_index);
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahcsetccbstatus(scb->ccb, CAM_SEL_TIMEOUT);
ahc_freeze_devq(ahc, scb->ccb->ccb_h.path);
}
/* Stop the selection */
ahc_outb(ahc, SCSISEQ, 0);
/* No more pending messages */
ahc_clear_msg_state(ahc);
/*
* Although the driver does not care about the
* 'Selection in Progress' status bit, the busy
* LED does. SELINGO is only cleared by a sucessful
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* selection, so we must manually clear it to insure
* the LED turns off just incase no future successful
* selections occur (e.g. no devices on the bus).
*/
ahc_outb(ahc, CLRSINT0, CLRSELINGO);
/* Clear interrupt state */
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_outb(ahc, CLRSINT1, CLRSELTIMEO|CLRBUSFREE|CLRSCSIPERR);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
restart_sequencer(ahc);
} else {
xpt_print_path(scb->ccb->ccb_h.path);
printf("Unknown SCSIINT. Status = 0x%x\n", status);
ahc_outb(ahc, CLRSINT1, status);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
}
}
static void
ahc_build_transfer_msg(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
/*
* We need to initiate transfer negotiations.
* If our current and goal settings are identical,
* we want to renegotiate due to a check condition.
*/
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_syncrate *rate;
int dowide;
int dosync;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int doppr;
int use_ppr;
u_int period;
u_int ppr_options;
u_int offset;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
dowide = tinfo->current.width != tinfo->goal.width;
dosync = tinfo->current.period != tinfo->goal.period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
doppr = tinfo->current.ppr_options != tinfo->goal.ppr_options;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (!dowide && !dosync && !doppr) {
dowide = tinfo->goal.width != MSG_EXT_WDTR_BUS_8_BIT;
dosync = tinfo->goal.period != 0;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
doppr = tinfo->goal.ppr_options != 0;
}
if (!dowide && !dosync && !doppr) {
panic("ahc_intr: AWAITING_MSG for negotiation, "
"but no negotiation needed\n");
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
use_ppr = (tinfo->current.transport_version >= 3) || doppr;
if (use_ppr) {
ahc_construct_ppr(ahc, tinfo->goal.period, tinfo->goal.offset,
tinfo->goal.width, tinfo->goal.ppr_options);
} else if (dowide) {
ahc_construct_wdtr(ahc, tinfo->goal.width);
} else if (dosync) {
period = tinfo->goal.period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr_options = 0;
rate = ahc_devlimited_syncrate(ahc, &period, &ppr_options);
offset = tinfo->goal.offset;
ahc_validate_offset(ahc, rate, &offset,
tinfo->current.width);
ahc_construct_sdtr(ahc, period, offset);
}
}
static void
ahc_setup_initiator_msgout(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
struct scb *scb)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 0;
if ((scb->flags & SCB_DEVICE_RESET) == 0
&& ahc_inb(ahc, MSG_OUT) == MSG_IDENTIFYFLAG) {
u_int identify_msg;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
identify_msg = MSG_IDENTIFYFLAG | SCB_GET_LUN(scb);
if ((scb->hscb->control & DISCENB) != 0)
identify_msg |= MSG_IDENTIFY_DISCFLAG;
ahc->msgout_buf[ahc->msgout_index++] = identify_msg;
ahc->msgout_len++;
if ((scb->hscb->control & TAG_ENB) != 0) {
ahc->msgout_buf[ahc->msgout_index++] =
scb->ccb->csio.tag_action;
ahc->msgout_buf[ahc->msgout_index++] = scb->hscb->tag;
ahc->msgout_len += 2;
}
}
if (scb->flags & SCB_DEVICE_RESET) {
ahc->msgout_buf[ahc->msgout_index++] = MSG_BUS_DEV_RESET;
ahc->msgout_len++;
xpt_print_path(scb->ccb->ccb_h.path);
printf("Bus Device Reset Message Sent\n");
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
} else if ((scb->flags & SCB_ABORT) != 0) {
if ((scb->hscb->control & TAG_ENB) != 0)
ahc->msgout_buf[ahc->msgout_index++] = MSG_ABORT_TAG;
else
ahc->msgout_buf[ahc->msgout_index++] = MSG_ABORT;
ahc->msgout_len++;
xpt_print_path(scb->ccb->ccb_h.path);
printf("Abort Message Sent\n");
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
} else if ((ahc->targ_msg_req & devinfo->target_mask) != 0
|| (scb->flags & SCB_NEGOTIATE) != 0) {
ahc_build_transfer_msg(ahc, devinfo);
} else {
printf("ahc_intr: AWAITING_MSG for an SCB that "
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
"does not have a waiting message\n");
printf("SCSIID = %x, target_mask = %x\n", scb->hscb->scsiid,
devinfo->target_mask);
panic("SCB = %d, SCB Control = %x, MSG_OUT = %x "
"SCB flags = %x", scb->hscb->tag, scb->hscb->control,
ahc_inb(ahc, MSG_OUT), scb->flags);
}
/*
* Clear the MK_MESSAGE flag from the SCB so we aren't
* asked to send this message again.
*/
ahc_outb(ahc, SCB_CONTROL, ahc_inb(ahc, SCB_CONTROL) & ~MK_MESSAGE);
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
}
static void
ahc_setup_target_msgin(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
/*
* To facilitate adding multiple messages together,
* each routine should increment the index and len
* variables instead of setting them explicitly.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 0;
if ((ahc->targ_msg_req & devinfo->target_mask) != 0)
ahc_build_transfer_msg(ahc, devinfo);
else
panic("ahc_intr: AWAITING target message with no message");
ahc->msgout_index = 0;
ahc->msg_type = MSG_TYPE_TARGET_MSGIN;
}
static int
ahc_handle_msg_reject(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
/*
* What we care about here is if we had an
* outstanding SDTR or WDTR message for this
* target. If we did, this is a signal that
* the target is refusing negotiation.
*/
struct scb *scb;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int scb_index;
u_int last_msg;
int response = 0;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = &ahc->scb_data->scbarray[scb_index];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel,
devinfo->our_scsiid,
devinfo->target, &tstate);
/* Might be necessary */
last_msg = ahc_inb(ahc, LAST_MSG);
if (ahc_sent_msg(ahc, MSG_EXT_WDTR, /*full*/FALSE)) {
/* note 8bit xfers */
printf("%s:%c:%d: refuses WIDE negotiation. Using "
"8bit transfers\n", ahc_name(ahc),
devinfo->channel, devinfo->target);
ahc_set_width(ahc, devinfo, scb->ccb->ccb_h.path,
MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/*
* No need to clear the sync rate. If the target
* did not accept the command, our syncrate is
* unaffected. If the target started the negotiation,
* but rejected our response, we already cleared the
* sync rate before sending our WDTR.
*/
if (tinfo->goal.period) {
u_int period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int ppr_options;
/* Start the sync negotiation */
period = tinfo->goal.period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr_options = 0;
ahc_devlimited_syncrate(ahc, &period, &ppr_options);
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_sdtr(ahc, period, tinfo->goal.offset);
ahc->msgout_index = 0;
response = 1;
}
} else if (ahc_sent_msg(ahc, MSG_EXT_SDTR, /*full*/FALSE)) {
/* note asynch xfers and clear flag */
ahc_set_syncrate(ahc, devinfo, scb->ccb->ccb_h.path,
/*syncrate*/NULL, /*period*/0,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*offset*/0, /*ppr_options*/0,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
printf("%s:%c:%d: refuses synchronous negotiation. "
"Using asynchronous transfers\n",
ahc_name(ahc),
devinfo->channel, devinfo->target);
} else if ((scb->hscb->control & MSG_SIMPLE_Q_TAG) != 0) {
struct ccb_trans_settings neg;
printf("%s:%c:%d: refuses tagged commands. Performing "
"non-tagged I/O\n", ahc_name(ahc),
devinfo->channel, devinfo->target);
ahc_set_tags(ahc, devinfo, FALSE);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
neg.flags = CCB_TRANS_CURRENT_SETTINGS;
neg.valid = CCB_TRANS_TQ_VALID;
xpt_setup_ccb(&neg.ccb_h, scb->ccb->ccb_h.path, /*priority*/1);
xpt_async(AC_TRANSFER_NEG, scb->ccb->ccb_h.path, &neg);
/*
* Resend the identify for this CCB as the target
* may believe that the selection is invalid otherwise.
*/
ahc_outb(ahc, SCB_CONTROL, ahc_inb(ahc, SCB_CONTROL)
& ~MSG_SIMPLE_Q_TAG);
scb->hscb->control &= ~MSG_SIMPLE_Q_TAG;
scb->ccb->ccb_h.flags &= ~CAM_TAG_ACTION_VALID;
ahc_outb(ahc, MSG_OUT, MSG_IDENTIFYFLAG);
ahc_outb(ahc, SCSISIGO, ahc_inb(ahc, SCSISIGO) | ATNO);
/*
* Requeue all tagged commands for this target
* currently in our posession so they can be
* converted to untagged commands.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_search_qinfifo(ahc, SCB_GET_TARGET(ahc, scb),
SCB_GET_CHANNEL(ahc, scb),
SCB_GET_LUN(scb), /*tag*/SCB_LIST_NULL,
ROLE_INITIATOR, CAM_REQUEUE_REQ,
SEARCH_COMPLETE);
} else {
/*
* Otherwise, we ignore it.
*/
printf("%s:%c:%d: Message reject for %x -- ignored\n",
ahc_name(ahc), devinfo->channel, devinfo->target,
last_msg);
}
return (response);
}
static void
ahc_clear_msg_state(struct ahc_softc *ahc)
{
ahc->msgout_len = 0;
ahc->msgin_index = 0;
ahc->msg_type = MSG_TYPE_NONE;
ahc_outb(ahc, MSG_OUT, MSG_NOOP);
}
static void
ahc_handle_message_phase(struct ahc_softc *ahc, struct cam_path *path)
{
struct ahc_devinfo devinfo;
u_int bus_phase;
int end_session;
ahc_fetch_devinfo(ahc, &devinfo);
end_session = FALSE;
bus_phase = ahc_inb(ahc, SCSISIGI) & PHASE_MASK;
reswitch:
switch (ahc->msg_type) {
case MSG_TYPE_INITIATOR_MSGOUT:
{
int lastbyte;
int phasemis;
int msgdone;
if (ahc->msgout_len == 0)
panic("REQINIT interrupt with no active message");
phasemis = bus_phase != P_MESGOUT;
if (phasemis) {
if (bus_phase == P_MESGIN) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahc_outb(ahc, CLRSINT1, CLRATNO);
ahc->send_msg_perror = FALSE;
ahc->msg_type = MSG_TYPE_INITIATOR_MSGIN;
ahc->msgin_index = 0;
goto reswitch;
}
end_session = TRUE;
break;
}
if (ahc->send_msg_perror) {
ahc_outb(ahc, CLRSINT1, CLRATNO);
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
ahc_outb(ahc, SCSIDATL, MSG_PARITY_ERROR);
break;
}
msgdone = ahc->msgout_index == ahc->msgout_len;
if (msgdone) {
/*
* The target has requested a retry.
* Re-assert ATN, reset our message index to
* 0, and try again.
*/
ahc->msgout_index = 0;
ahc_outb(ahc, SCSISIGO, ahc_inb(ahc, SCSISIGO) | ATNO);
}
lastbyte = ahc->msgout_index == (ahc->msgout_len - 1);
if (lastbyte) {
/* Last byte is signified by dropping ATN */
ahc_outb(ahc, CLRSINT1, CLRATNO);
}
/*
* Clear our interrupt status and present
* the next byte on the bus.
*/
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
ahc_outb(ahc, SCSIDATL, ahc->msgout_buf[ahc->msgout_index++]);
break;
}
case MSG_TYPE_INITIATOR_MSGIN:
{
int phasemis;
int message_done;
phasemis = bus_phase != P_MESGIN;
if (phasemis) {
ahc->msgin_index = 0;
if (bus_phase == P_MESGOUT
&& (ahc->send_msg_perror == TRUE
|| (ahc->msgout_len != 0
&& ahc->msgout_index == 0))) {
ahc->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
goto reswitch;
}
end_session = TRUE;
break;
}
/* Pull the byte in without acking it */
ahc->msgin_buf[ahc->msgin_index] = ahc_inb(ahc, SCSIBUSL);
message_done = ahc_parse_msg(ahc, path, &devinfo);
if (message_done) {
/*
* Clear our incoming message buffer in case there
* is another message following this one.
*/
ahc->msgin_index = 0;
/*
* If this message illicited a response,
* assert ATN so the target takes us to the
* message out phase.
*/
if (ahc->msgout_len != 0)
ahc_outb(ahc, SCSISIGO,
ahc_inb(ahc, SCSISIGO) | ATNO);
} else
ahc->msgin_index++;
/* Ack the byte */
ahc_outb(ahc, CLRSINT1, CLRREQINIT);
ahc_inb(ahc, SCSIDATL);
break;
}
case MSG_TYPE_TARGET_MSGIN:
{
int msgdone;
int msgout_request;
if (ahc->msgout_len == 0)
panic("Target MSGIN with no active message");
/*
* If we interrupted a mesgout session, the initiator
* will not know this until our first REQ. So, we
* only honor mesgout requests after we've sent our
* first byte.
*/
if ((ahc_inb(ahc, SCSISIGI) & ATNI) != 0
&& ahc->msgout_index > 0)
msgout_request = TRUE;
else
msgout_request = FALSE;
if (msgout_request) {
/*
* Change gears and see if
* this messages is of interest to
* us or should be passed back to
* the sequencer.
*/
ahc->msg_type = MSG_TYPE_TARGET_MSGOUT;
ahc_outb(ahc, SCSISIGO, P_MESGOUT | BSYO);
ahc->msgin_index = 0;
/* Dummy read to REQ for first byte */
ahc_inb(ahc, SCSIDATL);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
break;
}
msgdone = ahc->msgout_index == ahc->msgout_len;
if (msgdone) {
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) & ~SPIOEN);
end_session = TRUE;
break;
}
/*
* Present the next byte on the bus.
*/
ahc_outb(ahc, SXFRCTL0, ahc_inb(ahc, SXFRCTL0) | SPIOEN);
ahc_outb(ahc, SCSIDATL, ahc->msgout_buf[ahc->msgout_index++]);
break;
}
case MSG_TYPE_TARGET_MSGOUT:
{
int lastbyte;
int msgdone;
/*
* The initiator signals that this is
* the last byte by dropping ATN.
*/
lastbyte = (ahc_inb(ahc, SCSISIGI) & ATNI) == 0;
/*
* Read the latched byte, but turn off SPIOEN first
* so that we don't inadvertantly cause a REQ for the
* next byte.
*/
ahc_outb(ahc, SXFRCTL0, ahc_inb(ahc, SXFRCTL0) & ~SPIOEN);
ahc->msgin_buf[ahc->msgin_index] = ahc_inb(ahc, SCSIDATL);
msgdone = ahc_parse_msg(ahc, path, &devinfo);
if (msgdone == MSGLOOP_TERMINATED) {
/*
* The message is *really* done in that it caused
* us to go to bus free. The sequencer has already
* been reset at this point, so pull the ejection
* handle.
*/
return;
}
ahc->msgin_index++;
/*
* XXX Read spec about initiator dropping ATN too soon
* and use msgdone to detect it.
*/
if (msgdone == MSGLOOP_MSGCOMPLETE) {
ahc->msgin_index = 0;
/*
* If this message illicited a response, transition
* to the Message in phase and send it.
*/
if (ahc->msgout_len != 0) {
ahc_outb(ahc, SCSISIGO, P_MESGIN | BSYO);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
ahc->msg_type = MSG_TYPE_TARGET_MSGIN;
ahc->msgin_index = 0;
break;
}
}
if (lastbyte)
end_session = TRUE;
else {
/* Ask for the next byte. */
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | SPIOEN);
}
break;
}
default:
panic("Unknown REQINIT message type");
}
if (end_session) {
ahc_clear_msg_state(ahc);
ahc_outb(ahc, RETURN_1, EXIT_MSG_LOOP);
} else
ahc_outb(ahc, RETURN_1, CONT_MSG_LOOP);
}
/*
* See if we sent a particular extended message to the target.
* If "full" is true, the target saw the full message.
* If "full" is false, the target saw at least the first
* byte of the message.
*/
static int
ahc_sent_msg(struct ahc_softc *ahc, u_int msgtype, int full)
{
int found;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int index;
found = FALSE;
index = 0;
while (index < ahc->msgout_len) {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (ahc->msgout_buf[index] == MSG_EXTENDED) {
/* Found a candidate */
if (ahc->msgout_buf[index+2] == msgtype) {
u_int end_index;
end_index = index + 1
+ ahc->msgout_buf[index + 1];
if (full) {
if (ahc->msgout_index > end_index)
found = TRUE;
} else if (ahc->msgout_index > index)
found = TRUE;
}
break;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
} else if (ahc->msgout_buf[index] >= MSG_SIMPLE_Q_TAG
&& ahc->msgout_buf[index] <= MSG_IGN_WIDE_RESIDUE) {
/* Skip tag type and tag id or residue param*/
index += 2;
} else {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/* Single byte message */
index++;
}
}
return (found);
}
static int
ahc_parse_msg(struct ahc_softc *ahc, struct cam_path *path,
struct ahc_devinfo *devinfo)
{
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
int reject;
int done;
int response;
u_int targ_scsirate;
done = MSGLOOP_IN_PROG;
response = FALSE;
reject = FALSE;
tinfo = ahc_fetch_transinfo(ahc, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
targ_scsirate = tinfo->scsirate;
/*
* Parse as much of the message as is availible,
* rejecting it if we don't support it. When
* the entire message is availible and has been
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
* handled, return MSGLOOP_MSGCOMPLETE, indicating
* that we have parsed an entire message.
*
* In the case of extended messages, we accept the length
* byte outright and perform more checking once we know the
* extended message type.
*/
switch (ahc->msgin_buf[0]) {
case MSG_MESSAGE_REJECT:
response = ahc_handle_msg_reject(ahc, devinfo);
/* FALLTHROUGH */
case MSG_NOOP:
done = MSGLOOP_MSGCOMPLETE;
break;
case MSG_EXTENDED:
{
/* Wait for enough of the message to begin validation */
if (ahc->msgin_index < 2)
break;
switch (ahc->msgin_buf[2]) {
case MSG_EXT_SDTR:
{
struct ahc_syncrate *syncrate;
u_int period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int ppr_options;
u_int offset;
u_int saved_offset;
if (ahc->msgin_buf[1] != MSG_EXT_SDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have both args before validating
* and acting on this message.
*
* Add one to MSG_EXT_SDTR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_SDTR_LEN + 1))
break;
period = ahc->msgin_buf[3];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr_options = 0;
saved_offset = offset = ahc->msgin_buf[4];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
syncrate = ahc_devlimited_syncrate(ahc, &period,
&ppr_options);
ahc_validate_offset(ahc, syncrate, &offset,
targ_scsirate & WIDEXFER);
ahc_set_syncrate(ahc, devinfo, path,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
syncrate, period,
offset, ppr_options,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/*
* See if we initiated Sync Negotiation
* and didn't have to fall down to async
* transfers.
*/
if (ahc_sent_msg(ahc, MSG_EXT_SDTR, /*full*/TRUE)) {
/* We started it */
if (saved_offset != offset) {
/* Went too low - force async */
reject = TRUE;
}
} else {
/*
* Send our own SDTR in reply
*/
if (bootverbose)
printf("Sending SDTR!\n");
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_sdtr(ahc, period, offset);
ahc->msgout_index = 0;
response = TRUE;
}
done = MSGLOOP_MSGCOMPLETE;
break;
}
case MSG_EXT_WDTR:
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int bus_width;
u_int saved_width;
u_int sending_reply;
sending_reply = FALSE;
if (ahc->msgin_buf[1] != MSG_EXT_WDTR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have our arg before validating
* and acting on this message.
*
* Add one to MSG_EXT_WDTR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_WDTR_LEN + 1))
break;
bus_width = ahc->msgin_buf[3];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
saved_width = bus_width;
ahc_validate_width(ahc, &bus_width);
if (ahc_sent_msg(ahc, MSG_EXT_WDTR, /*full*/TRUE)) {
/*
* Don't send a WDTR back to the
* target, since we asked first.
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* If the width went higher than our
* request, reject it.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (saved_width > bus_width) {
reject = TRUE;
printf("%s: target %d requested %dBit "
"transfers. Rejecting...\n",
ahc_name(ahc), devinfo->target,
8 * (0x01 << bus_width));
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
bus_width = 0;
}
} else {
/*
* Send our own WDTR in reply
*/
if (bootverbose)
printf("Sending WDTR!\n");
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_wdtr(ahc, bus_width);
ahc->msgout_index = 0;
response = TRUE;
sending_reply = TRUE;
}
ahc_set_width(ahc, devinfo, path, bus_width,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
/* After a wide message, we are async */
ahc_set_syncrate(ahc, devinfo, path,
/*syncrate*/NULL, /*period*/0,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*offset*/0, /*ppr_options*/0,
AHC_TRANS_ACTIVE, /*paused*/TRUE);
if (sending_reply == FALSE && reject == FALSE) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* XXX functionalize */
if (tinfo->goal.period) {
struct ahc_syncrate *rate;
u_int period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int ppr;
u_int offset;
/* Start the sync negotiation */
period = tinfo->goal.period;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr = 0;
rate = ahc_devlimited_syncrate(ahc,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&period,
&ppr);
offset = tinfo->goal.offset;
ahc_validate_offset(ahc, rate, &offset,
tinfo->current.width);
ahc->msgout_index = 0;
ahc->msgout_len = 0;
ahc_construct_sdtr(ahc, period, offset);
ahc->msgout_index = 0;
response = TRUE;
}
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
done = MSGLOOP_MSGCOMPLETE;
break;
}
case MSG_EXT_PPR:
{
struct ahc_syncrate *syncrate;
u_int period;
u_int offset;
u_int bus_width;
u_int ppr_options;
u_int saved_width;
u_int saved_offset;
u_int saved_ppr_options;
if (ahc->msgin_buf[1] != MSG_EXT_PPR_LEN) {
reject = TRUE;
break;
}
/*
* Wait until we have all args before validating
* and acting on this message.
*
* Add one to MSG_EXT_PPR_LEN to account for
* the extended message preamble.
*/
if (ahc->msgin_index < (MSG_EXT_PPR_LEN + 1))
break;
period = ahc->msgin_buf[3];
offset = ahc->msgin_buf[5];
bus_width = ahc->msgin_buf[6];
saved_width = bus_width;
ppr_options = ahc->msgin_buf[7];
/*
* According to the spec, a DT only
* period factor with no DT option
* set implies async.
*/
if ((ppr_options & MSG_EXT_PPR_DT_REQ) == 0
&& period == 9)
offset = 0;
saved_ppr_options = ppr_options;
saved_offset = offset;
/*
* Mask out any options we don't support
* on any controller. Transfer options are
* only available if we are negotiating wide.
*/
ppr_options &= MSG_EXT_PPR_DT_REQ;
if (bus_width == 0)
ppr_options = 0;
ahc_validate_width(ahc, &bus_width);
syncrate = ahc_devlimited_syncrate(ahc, &period,
&ppr_options);
ahc_validate_offset(ahc, syncrate, &offset, bus_width);
if (ahc_sent_msg(ahc, MSG_EXT_PPR, /*full*/TRUE)) {
/*
* If we are unable to do any of the
* requested options (we went too low),
* then we'll have to reject the message.
*/
if (saved_width > bus_width
|| saved_offset != offset
|| saved_ppr_options != ppr_options)
reject = TRUE;
} else {
printf("Target Initated PPR detected!\n");
response = TRUE;
}
ahc_set_syncrate(ahc, devinfo, path,
syncrate, period,
offset, ppr_options,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
ahc_set_width(ahc, devinfo, path, bus_width,
AHC_TRANS_ACTIVE|AHC_TRANS_GOAL,
/*paused*/TRUE);
break;
}
default:
/* Unknown extended message. Reject it. */
reject = TRUE;
break;
}
1999-01-15 23:24:23 +00:00
break;
}
case MSG_BUS_DEV_RESET:
ahc_handle_devreset(ahc, devinfo,
CAM_BDR_SENT, AC_SENT_BDR,
"Bus Device Reset Received",
/*verbose_level*/0);
restart_sequencer(ahc);
done = MSGLOOP_TERMINATED;
break;
case MSG_ABORT_TAG:
case MSG_ABORT:
case MSG_CLEAR_QUEUE:
/* Target mode messages */
if (devinfo->role != ROLE_TARGET) {
reject = TRUE;
break;
}
ahc_abort_scbs(ahc, devinfo->target, devinfo->channel,
devinfo->lun,
ahc->msgin_buf[0] == MSG_ABORT_TAG
? SCB_LIST_NULL
: ahc_inb(ahc, INITIATOR_TAG),
ROLE_TARGET, CAM_REQ_ABORTED);
tstate = ahc->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
struct tmode_lstate* lstate;
lstate = tstate->enabled_luns[devinfo->lun];
if (lstate != NULL) {
ahc_queue_lstate_event(ahc, lstate,
devinfo->our_scsiid,
ahc->msgin_buf[0],
/*arg*/0);
ahc_send_lstate_events(ahc, lstate);
}
}
done = MSGLOOP_MSGCOMPLETE;
break;
case MSG_TERM_IO_PROC:
default:
reject = TRUE;
break;
}
if (reject) {
/*
* Setup to reject the message.
*/
ahc->msgout_index = 0;
ahc->msgout_len = 1;
ahc->msgout_buf[0] = MSG_MESSAGE_REJECT;
done = MSGLOOP_MSGCOMPLETE;
response = TRUE;
}
if (done != MSGLOOP_IN_PROG && !response)
/* Clear the outgoing message buffer */
ahc->msgout_len = 0;
return (done);
}
static void
ahc_handle_ign_wide_residue(struct ahc_softc *ahc, struct ahc_devinfo *devinfo)
{
u_int scb_index;
struct scb *scb;
scb_index = ahc_inb(ahc, SCB_TAG);
scb = &ahc->scb_data->scbarray[scb_index];
if ((ahc_inb(ahc, SEQ_FLAGS) & DPHASE) == 0
|| (scb->ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_IN) {
/*
* Ignore the message if we haven't
* seen an appropriate data phase yet.
*/
} else {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing. Otherwise, subtract a byte
* and update the residual count accordingly.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint32_t sgptr;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sgptr = ahc_inb(ahc, SCB_RESIDUAL_SGPTR);
if ((sgptr & SG_LIST_NULL) != 0
&& ahc_inb(ahc, DATA_COUNT_ODD) == 1) {
/*
* If the residual occurred on the last
* transfer and the transfer request was
* expected to end on an odd count, do
* nothing.
*/
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_dma_seg *sg;
uint32_t data_cnt;
uint32_t data_addr;
/* Pull in the rest of the sgptr */
sgptr |= (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 3) << 24)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_SGPTR + 1) << 8);
sgptr &= SG_PTR_MASK;
data_cnt = (ahc_inb(ahc, SCB_RESIDUAL_DATACNT+2) << 16)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT+1) << 8)
| (ahc_inb(ahc, SCB_RESIDUAL_DATACNT));
data_addr = (ahc_inb(ahc, SHADDR + 3) << 24)
| (ahc_inb(ahc, SHADDR + 2) << 16)
| (ahc_inb(ahc, SHADDR + 1) << 8)
| (ahc_inb(ahc, SHADDR));
data_cnt += 1;
data_addr -= 1;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg = ahc_sg_bus_to_virt(scb, sgptr);
/*
* The residual sg ptr points to the next S/G
* to load so we must go back one.
*/
sg--;
if (sg != scb->sg_list
&& (sg->len & AHC_SG_LEN_MASK) < data_cnt) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg--;
data_cnt = 1 | (sg->len & AHC_DMA_LAST_SEG);
data_addr = sg->addr
+ (sg->len & AHC_SG_LEN_MASK) - 1;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Increment sg so it points to the
* "next" sg.
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg++;
sgptr = ahc_sg_virt_to_bus(scb, sg);
ahc_outb(ahc, SCB_RESIDUAL_SGPTR + 3,
sgptr >> 24);
ahc_outb(ahc, SCB_RESIDUAL_SGPTR + 2,
sgptr >> 16);
ahc_outb(ahc, SCB_RESIDUAL_SGPTR + 1,
sgptr >> 8);
ahc_outb(ahc, SCB_RESIDUAL_SGPTR, sgptr);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* XXX What about high address byte??? */
ahc_outb(ahc, SCB_RESIDUAL_DATACNT + 3, data_cnt >> 24);
ahc_outb(ahc, SCB_RESIDUAL_DATACNT + 2, data_cnt >> 16);
ahc_outb(ahc, SCB_RESIDUAL_DATACNT + 1, data_cnt >> 8);
ahc_outb(ahc, SCB_RESIDUAL_DATACNT, data_cnt);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* XXX Perhaps better to just keep the saved address in sram */
if ((ahc->features & AHC_ULTRA2) != 0) {
ahc_outb(ahc, HADDR + 3, data_addr >> 24);
ahc_outb(ahc, HADDR + 2, data_addr >> 16);
ahc_outb(ahc, HADDR + 1, data_addr >> 8);
ahc_outb(ahc, HADDR, data_addr);
ahc_outb(ahc, DFCNTRL, PRELOADEN);
ahc_outb(ahc, SXFRCTL0,
ahc_inb(ahc, SXFRCTL0) | CLRCHN);
} else {
ahc_outb(ahc, SHADDR + 3, data_addr >> 24);
ahc_outb(ahc, SHADDR + 2, data_addr >> 16);
ahc_outb(ahc, SHADDR + 1, data_addr >> 8);
ahc_outb(ahc, SHADDR, data_addr);
}
}
}
}
static void
ahc_handle_devreset(struct ahc_softc *ahc, struct ahc_devinfo *devinfo,
cam_status status, ac_code acode, char *message,
int verbose_level)
{
struct cam_path *path;
int found;
int error;
struct tmode_tstate* tstate;
u_int lun;
error = ahc_create_path(ahc, devinfo, &path);
found = ahc_abort_scbs(ahc, devinfo->target, devinfo->channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL, devinfo->role,
status);
/*
* Send an immediate notify ccb to all target more peripheral
* drivers affected by this action.
*/
tstate = ahc->enabled_targets[devinfo->our_scsiid];
if (tstate != NULL) {
for (lun = 0; lun <= 7; lun++) {
struct tmode_lstate* lstate;
lstate = tstate->enabled_luns[lun];
if (lstate == NULL)
continue;
ahc_queue_lstate_event(ahc, lstate, devinfo->our_scsiid,
MSG_BUS_DEV_RESET, /*arg*/0);
ahc_send_lstate_events(ahc, lstate);
}
}
/*
* Go back to async/narrow transfers and renegotiate.
* ahc_set_width and ahc_set_syncrate can cope with NULL
* paths.
*/
ahc_set_width(ahc, devinfo, path, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, devinfo, path, /*syncrate*/NULL,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*period*/0, /*offset*/0, /*ppr_options*/0,
AHC_TRANS_CUR, /*paused*/TRUE);
if (error == CAM_REQ_CMP && acode != 0)
xpt_async(AC_SENT_BDR, path, NULL);
if (error == CAM_REQ_CMP)
xpt_free_path(path);
if (message != NULL
&& (verbose_level <= bootverbose))
printf("%s: %s on %c:%d. %d SCBs aborted\n", ahc_name(ahc),
message, devinfo->channel, devinfo->target, found);
}
1998-10-07 03:34:13 +00:00
/*
* We have an scb which has been processed by the
* adaptor, now we look to see how the operation
* went.
*/
static void
ahc_done(struct ahc_softc *ahc, struct scb *scb)
{
union ccb *ccb;
CAM_DEBUG(scb->ccb->ccb_h.path, CAM_DEBUG_TRACE,
("ahc_done - scb %d\n", scb->hscb->tag));
ccb = scb->ccb;
LIST_REMOVE(&ccb->ccb_h, sim_links.le);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ccb->ccb_h.func_code == XPT_SCSI_IO
&& ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0
|| ccb->csio.tag_action == CAM_TAG_ACTION_NONE)
&& (ahc->features & AHC_SCB_BTT) == 0) {
struct scb_tailq *untagged_q;
untagged_q = &ahc->untagged_queues[ccb->ccb_h.target_id];
TAILQ_REMOVE(untagged_q, scb, links.tqe);
ahc_run_untagged_queue(ahc, untagged_q);
}
untimeout(ahc_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
bus_dmasync_op_t op;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
op = BUS_DMASYNC_POSTREAD;
else
op = BUS_DMASYNC_POSTWRITE;
bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
}
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
if (ahc_ccb_status(ccb) == CAM_REQ_INPROG)
ccb->ccb_h.status |= CAM_REQ_CMP;
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
ahcfreescb(ahc, scb);
xpt_done(ccb);
return;
}
/*
* If the recovery SCB completes, we have to be
* out of our timeout.
*/
if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
struct ccb_hdr *ccbh;
/*
* We were able to complete the command successfully,
* so reinstate the timeouts for all other pending
* commands.
*/
ccbh = ahc->pending_ccbs.lh_first;
while (ccbh != NULL) {
struct scb *pending_scb;
pending_scb = (struct scb *)ccbh->ccb_scb_ptr;
ccbh->timeout_ch =
timeout(ahc_timeout, pending_scb,
(ccbh->timeout * hz)/1000);
ccbh = LIST_NEXT(ccbh, sim_links.le);
}
/*
* Ensure that we didn't put a second instance of this
* SCB into the QINFIFO.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_search_qinfifo(ahc, SCB_GET_TARGET(ahc, scb),
SCB_GET_CHANNEL(ahc, scb),
SCB_GET_LUN(scb), scb->hscb->tag,
ROLE_INITIATOR, /*status*/0,
SEARCH_REMOVE);
if (ahc_ccb_status(ccb) == CAM_BDR_SENT
|| ahc_ccb_status(ccb) == CAM_REQ_ABORTED)
ahcsetccbstatus(ccb, CAM_CMD_TIMEOUT);
xpt_print_path(ccb->ccb_h.path);
printf("no longer in timeout, status = %x\n",
ccb->ccb_h.status);
}
/* Don't clobber any existing error state */
if (ahc_ccb_status(ccb) == CAM_REQ_INPROG) {
ccb->ccb_h.status |= CAM_REQ_CMP;
} else if ((scb->flags & SCB_SENSE) != 0) {
/*
* We performed autosense retrieval.
*
* bzero the sense data before having
* the drive fill it. The SCSI spec mandates
* that any untransfered data should be
* assumed to be zero. Complete the 'bounce'
* of sense information through buffers accessible
* via bus-space by copying it into the clients
* csio.
*/
bzero(&ccb->csio.sense_data, sizeof(ccb->csio.sense_data));
bcopy(&ahc->scb_data->sense[scb->hscb->tag],
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&ccb->csio.sense_data,
scb->sg_list->len & AHC_SG_LEN_MASK);
scb->ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
}
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
ahcfreescb(ahc, scb);
xpt_done(ccb);
}
/*
* Determine the number of SCBs available on the controller
*/
int
ahc_probe_scbs(struct ahc_softc *ahc) {
int i;
for (i = 0; i < AHC_SCB_MAX; i++) {
ahc_outb(ahc, SCBPTR, i);
ahc_outb(ahc, SCB_CONTROL, i);
if (ahc_inb(ahc, SCB_CONTROL) != i)
break;
ahc_outb(ahc, SCBPTR, 0);
if (ahc_inb(ahc, SCB_CONTROL) != 0)
break;
}
return (i);
}
/*
* Start the board, ready for normal operation
*/
int
ahc_init(struct ahc_softc *ahc)
{
int max_targ = 15;
int i;
int term;
u_int scsi_conf;
u_int scsiseq_template;
u_int ultraenb;
u_int discenable;
u_int tagenable;
size_t driver_data_size;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint32_t physaddr;
#ifdef AHC_PRINT_SRAM
printf("Scratch Ram:");
for (i = 0x20; i < 0x5f; i++) {
if (((i % 8) == 0) && (i != 0)) {
printf ("\n ");
}
printf (" 0x%x", ahc_inb(ahc, i));
}
if ((ahc->features & AHC_MORE_SRAM) != 0) {
for (i = 0x70; i < 0x7f; i++) {
if (((i % 8) == 0) && (i != 0)) {
printf ("\n ");
}
printf (" 0x%x", ahc_inb(ahc, i));
}
}
printf ("\n");
#endif
/*
* Assume we have a board at this stage and it has been reset.
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if ((ahc->flags & AHC_USEDEFAULTS) != 0)
ahc->our_id = ahc->our_id_b = 7;
/*
* Default to allowing initiator operations.
*/
ahc->flags |= AHC_INITIATORMODE;
/*
* XXX Would be better to use a per device flag, but PCI and EISA
* devices don't have them yet.
*/
if ((AHC_TMODE_ENABLE & (0x01 << ahc->unit)) != 0) {
ahc->flags |= AHC_TARGETMODE;
/*
* Although we have space for both the initiator and
* target roles on ULTRA2 chips, we currently disable
* the initiator role to allow multi-scsi-id target mode
* configurations. We can only respond on the same SCSI
* ID as our initiator role if we allow initiator operation.
* At some point, we should add a configuration knob to
* allow both roles to be loaded.
*/
ahc->flags &= ~AHC_INITIATORMODE;
}
/* DMA tag for mapping buffers into device visible space. */
if (bus_dma_tag_create(ahc->parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/MAXBSIZE, /*nsegments*/AHC_NSEG,
/*maxsegsz*/AHC_MAXTRANSFER_SIZE,
/*flags*/BUS_DMA_ALLOCNOW,
&ahc->buffer_dmat) != 0) {
return (ENOMEM);
}
ahc->init_level++;
/*
* DMA tag for our command fifos and other data in system memory
* the card's sequencer must be able to access. For initiator
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* roles, we need to allocate space for the the qinfifo and qoutfifo.
* The qinfifo and qoutfifo are composed of 256 1 byte elements.
* When providing for the target mode role, we additionally must
* provide space for the incoming target command fifo and an extra
* byte to deal with a dma bug in some chip versions.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
driver_data_size = 2 * 256 * sizeof(uint8_t);
if ((ahc->flags & AHC_TARGETMODE) != 0)
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
driver_data_size += AHC_TMODE_CMDS * sizeof(struct target_cmd)
+ /*DMA WideOdd Bug Buffer*/1;
if (bus_dma_tag_create(ahc->parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
driver_data_size,
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &ahc->shared_data_dmat) != 0) {
return (ENOMEM);
}
ahc->init_level++;
/* Allocation of driver data */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (bus_dmamem_alloc(ahc->shared_data_dmat,
(void **)&ahc->qoutfifo,
BUS_DMA_NOWAIT, &ahc->shared_data_dmamap) != 0) {
return (ENOMEM);
}
ahc->init_level++;
/* And permanently map it in */
bus_dmamap_load(ahc->shared_data_dmat, ahc->shared_data_dmamap,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc->qoutfifo, driver_data_size, ahcdmamapcb,
&ahc->shared_data_busaddr, /*flags*/0);
if ((ahc->flags & AHC_TARGETMODE) != 0) {
ahc->targetcmds = (struct target_cmd *)ahc->qoutfifo;
ahc->qoutfifo = (uint8_t *)&ahc->targetcmds[256];
ahc->dma_bug_buf = ahc->shared_data_busaddr
+ driver_data_size - 1;
/* All target command blocks start out invalid. */
for (i = 0; i < AHC_TMODE_CMDS; i++)
ahc->targetcmds[i].cmd_valid = 0;
ahc->tqinfifonext = 1;
ahc_outb(ahc, KERNEL_TQINPOS, ahc->tqinfifonext - 1);
ahc_outb(ahc, TQINPOS, ahc->tqinfifonext);
ahc->qoutfifo = (uint8_t *)&ahc->targetcmds[256];
}
ahc->qinfifo = &ahc->qoutfifo[256];
ahc->init_level++;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/* Allocate SCB data now that buffer_dmat is initialized */
if (ahc->scb_data->maxhscbs == 0)
if (ahcinitscbdata(ahc) != 0)
return (ENOMEM);
/*
* Allocate a tstate to house information for our
* initiator presence on the bus as well as the user
* data for any target mode initiator.
*/
if (ahc_alloc_tstate(ahc, ahc->our_id, 'A') == NULL) {
printf("%s: unable to allocate tmode_tstate. "
"Failing attach\n", ahc_name(ahc));
return (-1);
}
if ((ahc->features & AHC_TWIN) != 0) {
if (ahc_alloc_tstate(ahc, ahc->our_id_b, 'B') == NULL) {
printf("%s: unable to allocate tmode_tstate. "
"Failing attach\n", ahc_name(ahc));
return (-1);
}
printf("Twin Channel, A SCSI Id=%d, B SCSI Id=%d, primary %c, ",
ahc->our_id, ahc->our_id_b,
ahc->flags & AHC_CHANNEL_B_PRIMARY? 'B': 'A');
} else {
if ((ahc->features & AHC_WIDE) != 0) {
printf("Wide ");
} else {
printf("Single ");
}
printf("Channel %c, SCSI Id=%d, ", ahc->channel, ahc->our_id);
}
ahc_outb(ahc, SEQ_FLAGS, 0);
if (ahc->scb_data->maxhscbs < AHC_SCB_MAX) {
ahc->flags |= AHC_PAGESCBS;
printf("%d/%d SCBs\n", ahc->scb_data->maxhscbs, AHC_SCB_MAX);
} else {
ahc->flags &= ~AHC_PAGESCBS;
printf("%d SCBs\n", ahc->scb_data->maxhscbs);
}
#ifdef AHC_DEBUG
if (ahc_debug & AHC_SHOWMISC) {
printf("%s: hardware scb %d bytes; kernel scb %d bytes; "
"ahc_dma %d bytes\n",
ahc_name(ahc),
sizeof(struct hardware_scb),
sizeof(struct scb),
sizeof(struct ahc_dma_seg));
}
#endif /* AHC_DEBUG */
/* Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels*/
if (ahc->features & AHC_TWIN) {
/*
* The device is gated to channel B after a chip reset,
* so set those values first
*/
term = (ahc->flags & AHC_TERM_ENB_B) != 0 ? STPWEN : 0;
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIID_ULTRA2, ahc->our_id_b);
else
ahc_outb(ahc, SCSIID, ahc->our_id_b);
scsi_conf = ahc_inb(ahc, SCSICONF + 1);
ahc_outb(ahc, SXFRCTL1, (scsi_conf & (ENSPCHK|STIMESEL))
|term|ENSTIMER|ACTNEGEN);
ahc_outb(ahc, SIMODE1, ENSELTIMO|ENSCSIRST|ENSCSIPERR);
ahc_outb(ahc, SXFRCTL0, DFON|SPIOEN);
if ((scsi_conf & RESET_SCSI) != 0
&& (ahc->flags & AHC_INITIATORMODE) != 0)
ahc->flags |= AHC_RESET_BUS_B;
/* Select Channel A */
ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~SELBUSB);
}
term = (ahc->flags & AHC_TERM_ENB_A) != 0 ? STPWEN : 0;
if ((ahc->features & AHC_ULTRA2) != 0)
ahc_outb(ahc, SCSIID_ULTRA2, ahc->our_id);
else
ahc_outb(ahc, SCSIID, ahc->our_id);
scsi_conf = ahc_inb(ahc, SCSICONF);
ahc_outb(ahc, SXFRCTL1, (scsi_conf & (ENSPCHK|STIMESEL))
|term
|ENSTIMER|ACTNEGEN);
ahc_outb(ahc, SIMODE1, ENSELTIMO|ENSCSIRST|ENSCSIPERR);
ahc_outb(ahc, SXFRCTL0, DFON|SPIOEN);
if ((scsi_conf & RESET_SCSI) != 0
&& (ahc->flags & AHC_INITIATORMODE) != 0)
ahc->flags |= AHC_RESET_BUS_A;
/*
* Look at the information that board initialization or
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
* the board bios has left us.
*/
ultraenb = 0;
tagenable = ALL_TARGETS_MASK;
/* Grab the disconnection disable table and invert it for our needs */
if (ahc->flags & AHC_USEDEFAULTS) {
printf("%s: Host Adapter Bios disabled. Using default SCSI "
"device parameters\n", ahc_name(ahc));
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B|
AHC_TERM_ENB_A|AHC_TERM_ENB_B;
discenable = ALL_TARGETS_MASK;
if ((ahc->features & AHC_ULTRA) != 0)
ultraenb = ALL_TARGETS_MASK;
} else {
discenable = ~((ahc_inb(ahc, DISC_DSB + 1) << 8)
| ahc_inb(ahc, DISC_DSB));
if ((ahc->features & (AHC_ULTRA|AHC_ULTRA2)) != 0)
ultraenb = (ahc_inb(ahc, ULTRA_ENB + 1) << 8)
| ahc_inb(ahc, ULTRA_ENB);
}
if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
max_targ = 7;
for (i = 0; i <= max_targ; i++) {
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int our_id;
u_int target_id;
char channel;
channel = 'A';
our_id = ahc->our_id;
target_id = i;
if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
channel = 'B';
our_id = ahc->our_id_b;
target_id = i % 8;
}
tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
target_id, &tstate);
/* Default to async narrow across the board */
bzero(tinfo, sizeof(*tinfo));
if (ahc->flags & AHC_USEDEFAULTS) {
if ((ahc->features & AHC_WIDE) != 0)
tinfo->user.width = MSG_EXT_WDTR_BUS_16_BIT;
/*
* These will be truncated when we determine the
* connection type we have with the target.
*/
tinfo->user.period = ahc_syncrates->period;
tinfo->user.offset = ~0;
} else {
u_int scsirate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint16_t mask;
/* Take the settings leftover in scratch RAM. */
scsirate = ahc_inb(ahc, TARG_SCSIRATE + i);
mask = (0x01 << i);
if ((ahc->features & AHC_ULTRA2) != 0) {
u_int offset;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
u_int maxsync;
if ((scsirate & SOFS) == 0x0F) {
/*
* Haven't negotiated yet,
* so the format is different.
*/
scsirate = (scsirate & SXFR) >> 4
| (ultraenb & mask)
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
? 0x08 : 0x0
| (scsirate & WIDEXFER);
offset = MAX_OFFSET_ULTRA2;
} else
offset = ahc_inb(ahc, TARG_OFFSET + i);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
maxsync = AHC_SYNCRATE_ULTRA2;
if ((ahc->features & AHC_DT) != 0)
maxsync = AHC_SYNCRATE_DT;
tinfo->user.period =
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
ahc_find_period(ahc, scsirate, maxsync);
if (offset == 0)
tinfo->user.period = 0;
else
tinfo->user.offset = ~0;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((scsirate & SXFR_ULTRA2) <= 8/*10MHz*/
&& (ahc->features & AHC_DT) != 0)
tinfo->user.ppr_options =
MSG_EXT_PPR_DT_REQ;
} else if ((scsirate & SOFS) != 0) {
tinfo->user.period =
ahc_find_period(ahc, scsirate,
(ultraenb & mask)
? AHC_SYNCRATE_ULTRA
: AHC_SYNCRATE_FAST);
if (tinfo->user.period != 0)
tinfo->user.offset = ~0;
}
if ((scsirate & WIDEXFER) != 0
&& (ahc->features & AHC_WIDE) != 0)
tinfo->user.width = MSG_EXT_WDTR_BUS_16_BIT;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tinfo->user.protocol_version = 4;
if ((ahc->features & AHC_DT) != 0)
tinfo->user.transport_version = 3;
else
tinfo->user.transport_version = 2;
tinfo->goal.protocol_version = 2;
tinfo->goal.transport_version = 2;
tinfo->current.protocol_version = 2;
tinfo->current.transport_version = 2;
}
tstate->ultraenb = ultraenb;
tstate->discenable = discenable;
tstate->tagenable = 0; /* Wait until the XPT says its okay */
}
ahc->user_discenable = discenable;
ahc->user_tagenable = tagenable;
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
/* There are no untagged SCBs active yet. */
for (i = 0; i < 16; i++) {
ahc_index_busy_tcl(ahc, BUILD_TCL(i << 4, 0), /*unbusy*/TRUE);
if ((ahc->features & AHC_SCB_BTT) != 0) {
int lun;
/*
* The SCB based BTT allows an entry per
* target and lun pair.
*/
for (lun = 1; lun < AHC_NUM_LUNS; lun++) {
ahc_index_busy_tcl(ahc,
BUILD_TCL(i << 4, lun),
/*unbusy*/TRUE);
}
}
}
/* All of our queues are empty */
for (i = 0; i < 256; i++)
ahc->qoutfifo[i] = SCB_LIST_NULL;
for (i = 0; i < 256; i++)
ahc->qinfifo[i] = SCB_LIST_NULL;
if ((ahc->features & AHC_MULTI_TID) != 0) {
ahc_outb(ahc, TARGID, 0);
ahc_outb(ahc, TARGID + 1, 0);
}
/*
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
* Tell the sequencer where it can find our arrays in memory.
*/
physaddr = ahc->scb_data->hscb_busaddr;
ahc_outb(ahc, HSCB_ADDR, physaddr & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 1, (physaddr >> 8) & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 2, (physaddr >> 16) & 0xFF);
ahc_outb(ahc, HSCB_ADDR + 3, (physaddr >> 24) & 0xFF);
physaddr = ahc->shared_data_busaddr;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_outb(ahc, SHARED_DATA_ADDR, physaddr & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 1, (physaddr >> 8) & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 2, (physaddr >> 16) & 0xFF);
ahc_outb(ahc, SHARED_DATA_ADDR + 3, (physaddr >> 24) & 0xFF);
/*
* Initialize the group code to command length table.
* This overrides the values in TARG_SCSIRATE, so only
* setup the table after we have processed that information.
*/
ahc_outb(ahc, CMDSIZE_TABLE, 5);
ahc_outb(ahc, CMDSIZE_TABLE + 1, 9);
ahc_outb(ahc, CMDSIZE_TABLE + 2, 9);
ahc_outb(ahc, CMDSIZE_TABLE + 3, 0);
ahc_outb(ahc, CMDSIZE_TABLE + 4, 15);
ahc_outb(ahc, CMDSIZE_TABLE + 5, 11);
ahc_outb(ahc, CMDSIZE_TABLE + 6, 0);
ahc_outb(ahc, CMDSIZE_TABLE + 7, 0);
/* Tell the sequencer of our initial queue positions */
ahc_outb(ahc, KERNEL_QINPOS, 0);
ahc_outb(ahc, QINPOS, 0);
ahc_outb(ahc, QOUTPOS, 0);
/* Don't have any special messages to send to targets */
ahc_outb(ahc, TARGET_MSG_REQUEST, 0);
ahc_outb(ahc, TARGET_MSG_REQUEST + 1, 0);
/*
* Use the built in queue management registers
* if they are available.
*/
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, QOFF_CTLSTA, SCB_QSIZE_256);
ahc_outb(ahc, SDSCB_QOFF, 0);
ahc_outb(ahc, SNSCB_QOFF, 0);
ahc_outb(ahc, HNSCB_QOFF, 0);
}
/* We don't have any waiting selections */
ahc_outb(ahc, WAITING_SCBH, SCB_LIST_NULL);
/* Our disconnection list is empty too */
ahc_outb(ahc, DISCONNECTED_SCBH, SCB_LIST_NULL);
/* Message out buffer starts empty */
ahc_outb(ahc, MSG_OUT, MSG_NOOP);
/*
* Setup the allowed SCSI Sequences based on operational mode.
* If we are a target, we'll enalbe select in operations once
* we've had a lun enabled.
*/
scsiseq_template = ENSELO|ENAUTOATNO|ENAUTOATNP;
if ((ahc->flags & AHC_INITIATORMODE) != 0)
scsiseq_template |= ENRSELI;
ahc_outb(ahc, SCSISEQ_TEMPLATE, scsiseq_template);
/*
* Load the Sequencer program and Enable the adapter
* in "fast" mode.
*/
if (bootverbose)
printf("%s: Downloading Sequencer Program...",
ahc_name(ahc));
ahc_loadseq(ahc);
/* We have to wait until after any system dumps... */
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown,
ahc, SHUTDOWN_PRI_DEFAULT);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((ahc->features & AHC_ULTRA2) != 0) {
int wait;
/*
* Wait for up to 500ms for our transceivers
* to settle. If the adapter does not have
* a cable attached, the tranceivers may
* never settle, so don't complain if we
* fail here.
*/
pause_sequencer(ahc);
for (wait = 5000;
(ahc_inb(ahc, SBLKCTL) & (ENAB40|ENAB20)) == 0 && wait;
wait--)
DELAY(100);
unpause_sequencer(ahc);
}
return (0);
}
static cam_status
ahc_find_tmode_devs(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb,
struct tmode_tstate **tstate, struct tmode_lstate **lstate,
int notfound_failure)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int our_id;
/*
* If we are not configured for target mode, someone
* is really confused to be sending this to us.
*/
if ((ahc->flags & AHC_TARGETMODE) == 0)
return (CAM_REQ_INVALID);
/* Range check target and lun */
/*
* Handle the 'black hole' device that sucks up
* requests to unattached luns on enabled targets.
*/
if (ccb->ccb_h.target_id == CAM_TARGET_WILDCARD
&& ccb->ccb_h.target_lun == CAM_LUN_WILDCARD) {
*tstate = NULL;
*lstate = ahc->black_hole;
} else {
u_int max_id;
if (cam_sim_bus(sim) == 0)
our_id = ahc->our_id;
else
our_id = ahc->our_id_b;
max_id = (ahc->features & AHC_WIDE) ? 15 : 7;
if (ccb->ccb_h.target_id > max_id)
return (CAM_TID_INVALID);
if (ccb->ccb_h.target_lun > 7)
return (CAM_LUN_INVALID);
if (ccb->ccb_h.target_id != our_id) {
if ((ahc->features & AHC_MULTI_TID) != 0) {
/*
* Only allow additional targets if
* the initiator role is disabled.
* The hardware cannot handle a re-select-in
* on the initiator id during a re-select-out
* on a different target id.
*/
if ((ahc->flags & AHC_INITIATORMODE) != 0)
return (CAM_TID_INVALID);
} else {
/*
* Only allow our target id to change
* if the initiator role is not configured
* and there are no enabled luns which
* are attached to the currently registered
* scsi id.
*/
if ((ahc->flags & AHC_INITIATORMODE) != 0
|| ahc->enabled_luns > 0)
return (CAM_TID_INVALID);
}
}
*tstate = ahc->enabled_targets[ccb->ccb_h.target_id];
*lstate = NULL;
if (*tstate != NULL)
*lstate =
(*tstate)->enabled_luns[ccb->ccb_h.target_lun];
}
if (notfound_failure != 0 && *lstate == NULL)
return (CAM_PATH_INVALID);
return (CAM_REQ_CMP);
}
static void
ahc_action(struct cam_sim *sim, union ccb *ccb)
{
struct ahc_softc *ahc;
struct tmode_lstate *lstate;
u_int target_id;
u_int our_id;
int s;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n"));
ahc = (struct ahc_softc *)cam_sim_softc(sim);
target_id = ccb->ccb_h.target_id;
our_id = SIM_SCSI_ID(ahc, sim);
switch (ccb->ccb_h.func_code) {
/* Common cases first */
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/
{
struct tmode_tstate *tstate;
cam_status status;
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
&lstate, TRUE);
if (status != CAM_REQ_CMP) {
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
/* Response from the black hole device */
tstate = NULL;
lstate = ahc->black_hole;
} else {
ccb->ccb_h.status = status;
xpt_done(ccb);
break;
}
}
if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
int s;
s = splcam();
SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h,
sim_links.sle);
ccb->ccb_h.status = CAM_REQ_INPROG;
if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0)
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
ahc_run_tqinfifo(ahc, /*paused*/FALSE);
splx(s);
break;
}
/*
* The target_id represents the target we attempt to
* select. In target mode, this is the initiator of
* the original command.
*/
our_id = target_id;
target_id = ccb->csio.init_id;
/* FALLTHROUGH */
}
case XPT_SCSI_IO: /* Execute the requested I/O operation */
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
{
struct scb *scb;
struct hardware_scb *hscb;
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint16_t mask;
/*
* get an scb to use.
*/
if ((scb = ahcgetscb(ahc)) == NULL) {
int s;
s = splcam();
ahc->flags |= AHC_RESOURCE_SHORTAGE;
splx(s);
xpt_freeze_simq(ahc->sim, /*count*/1);
ahcsetccbstatus(ccb, CAM_REQUEUE_REQ);
xpt_done(ccb);
return;
}
hscb = scb->hscb;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
("start scb(%p)\n", scb));
scb->ccb = ccb;
/*
* So we can find the SCB when an abort is requested
*/
ccb->ccb_h.ccb_scb_ptr = scb;
ccb->ccb_h.ccb_ahc_ptr = ahc;
/*
* Put all the arguments for the xfer in the scb
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
hscb->control = 0;
hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id);
hscb->lun = ccb->ccb_h.target_lun;
mask = SCB_GET_TARGET_MASK(ahc, scb);
tinfo = ahc_fetch_transinfo(ahc, SIM_CHANNEL(ahc, sim), our_id,
target_id, &tstate);
hscb->scsirate = tinfo->scsirate;
hscb->scsioffset = tinfo->current.offset;
if ((tstate->ultraenb & mask) != 0)
hscb->control |= ULTRAENB;
if ((tstate->discenable & mask) != 0
&& (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0)
hscb->control |= DISCENB;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0
&& (tinfo->current.width != 0 || tinfo->current.period != 0)) {
scb->flags |= SCB_NEGOTIATE;
hscb->control |= MK_MESSAGE;
}
if (ccb->ccb_h.func_code == XPT_RESET_DEV) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
hscb->cdb_len = 0;
scb->flags |= SCB_DEVICE_RESET;
hscb->control |= MK_MESSAGE;
ahc_execute_scb(scb, NULL, 0, 0);
} else {
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct target_data *tdata;
tdata = &hscb->shared_data.tdata;
if (ahc->pending_device == lstate) {
scb->flags |= SCB_TARGET_IMMEDIATE;
ahc->pending_device = NULL;
}
hscb->control |= TARGET_SCB;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tdata->target_phases = IDENTIFY_SEEN;
if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tdata->target_phases |= SPHASE_PENDING;
tdata->scsi_status =
ccb->csio.scsi_status;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
tdata->initiator_tag = ccb->csio.tag_id;
}
if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
hscb->control |= ccb->csio.tag_action;
ahc_setup_data(ahc, &ccb->csio, scb);
}
break;
}
case XPT_NOTIFY_ACK:
case XPT_IMMED_NOTIFY:
{
struct tmode_tstate *tstate;
struct tmode_lstate *lstate;
cam_status status;
status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate,
&lstate, TRUE);
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
xpt_done(ccb);
break;
}
SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h,
sim_links.sle);
ccb->ccb_h.status = CAM_REQ_INPROG;
ahc_send_lstate_events(ahc, lstate);
break;
}
case XPT_EN_LUN: /* Enable LUN as a target */
ahc_handle_en_lun(ahc, sim, ccb);
xpt_done(ccb);
break;
case XPT_ABORT: /* Abort the specified CCB */
{
ahc_abort_ccb(ahc, sim, ccb);
break;
}
case XPT_SET_TRAN_SETTINGS:
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct ahc_devinfo devinfo;
struct ccb_trans_settings *cts;
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
uint16_t *discenable;
uint16_t *tagenable;
u_int update_type;
int s;
cts = &ccb->cts;
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
cts->ccb_h.target_id,
cts->ccb_h.target_lun,
SIM_CHANNEL(ahc, sim),
ROLE_UNKNOWN);
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
update_type = 0;
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
update_type |= AHC_TRANS_GOAL;
discenable = &tstate->discenable;
tagenable = &tstate->tagenable;
} else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
update_type |= AHC_TRANS_USER;
discenable = &ahc->user_discenable;
tagenable = &ahc->user_tagenable;
} else {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
s = splcam();
if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) {
if ((cts->flags & CCB_TRANS_DISC_ENB) != 0)
*discenable |= devinfo.target_mask;
else
*discenable &= ~devinfo.target_mask;
}
if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) {
if ((cts->flags & CCB_TRANS_TAG_ENB) != 0)
*tagenable |= devinfo.target_mask;
else
*tagenable &= ~devinfo.target_mask;
}
if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_validate_width(ahc, &cts->bus_width);
ahc_set_width(ahc, &devinfo, cts->ccb_h.path,
cts->bus_width, update_type,
/*paused*/FALSE);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) {
if (update_type == AHC_TRANS_USER)
cts->sync_offset = tinfo->user.offset;
else
cts->sync_offset = tinfo->goal.offset;
}
if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) {
if (update_type == AHC_TRANS_USER)
cts->sync_period = tinfo->user.period;
else
cts->sync_period = tinfo->goal.period;
}
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0)
|| ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) {
struct ahc_syncrate *syncrate;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int ppr_options;
u_int maxsync;
if ((ahc->features & AHC_ULTRA2) != 0)
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
maxsync = AHC_SYNCRATE_DT;
else if ((ahc->features & AHC_ULTRA) != 0)
maxsync = AHC_SYNCRATE_ULTRA;
else
maxsync = AHC_SYNCRATE_FAST;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr_options = 0;
if (cts->sync_period <= 9)
ppr_options = MSG_EXT_PPR_DT_REQ;
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
syncrate = ahc_find_syncrate(ahc, &cts->sync_period,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&ppr_options,
maxsync);
ahc_validate_offset(ahc, syncrate, &cts->sync_offset,
MSG_EXT_WDTR_BUS_8_BIT);
/* We use a period of 0 to represent async */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (cts->sync_offset == 0) {
cts->sync_period = 0;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ppr_options = 0;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ppr_options == MSG_EXT_PPR_DT_REQ
&& tinfo->user.transport_version >= 3) {
tinfo->goal.transport_version =
tinfo->user.transport_version;
tinfo->current.transport_version =
tinfo->user.transport_version;
}
ahc_set_syncrate(ahc, &devinfo, cts->ccb_h.path,
syncrate, cts->sync_period,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
cts->sync_offset, ppr_options,
update_type, /*paused*/FALSE);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
splx(s);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_GET_TRAN_SETTINGS:
/* Get default/user set transfer settings for the target */
{
struct ahc_devinfo devinfo;
struct ccb_trans_settings *cts;
struct ahc_initiator_tinfo *targ_info;
struct tmode_tstate *tstate;
struct ahc_transinfo *tinfo;
int s;
cts = &ccb->cts;
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
cts->ccb_h.target_id,
cts->ccb_h.target_lun,
SIM_CHANNEL(ahc, sim),
ROLE_UNKNOWN);
targ_info = ahc_fetch_transinfo(ahc, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0)
tinfo = &targ_info->current;
else
tinfo = &targ_info->user;
s = splcam();
cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) {
if ((ahc->user_discenable & devinfo.target_mask) != 0)
cts->flags |= CCB_TRANS_DISC_ENB;
if ((ahc->user_tagenable & devinfo.target_mask) != 0)
cts->flags |= CCB_TRANS_TAG_ENB;
} else {
if ((tstate->discenable & devinfo.target_mask) != 0)
cts->flags |= CCB_TRANS_DISC_ENB;
if ((tstate->tagenable & devinfo.target_mask) != 0)
cts->flags |= CCB_TRANS_TAG_ENB;
}
cts->sync_period = tinfo->period;
cts->sync_offset = tinfo->offset;
cts->bus_width = tinfo->width;
splx(s);
cts->valid = CCB_TRANS_SYNC_RATE_VALID
| CCB_TRANS_SYNC_OFFSET_VALID
| CCB_TRANS_BUS_WIDTH_VALID
| CCB_TRANS_DISC_VALID
| CCB_TRANS_TQ_VALID;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_CALC_GEOMETRY:
{
struct ccb_calc_geometry *ccg;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint32_t size_mb;
uint32_t secs_per_cylinder;
int extended;
ccg = &ccb->ccg;
size_mb = ccg->volume_size
/ ((1024L * 1024L) / ccg->block_size);
extended = SIM_IS_SCSIBUS_B(ahc, sim)
? ahc->flags & AHC_EXTENDED_TRANS_B
: ahc->flags & AHC_EXTENDED_TRANS_A;
if (size_mb > 1024 && extended) {
ccg->heads = 255;
ccg->secs_per_track = 63;
} else {
ccg->heads = 64;
ccg->secs_per_track = 32;
}
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
{
int found;
s = splcam();
found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim),
/*initiate reset*/TRUE);
splx(s);
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
if (bootverbose) {
xpt_print_path(SIM_PATH(ahc, sim));
printf("SCSI bus reset delivered. "
"%d SCBs aborted.\n", found);
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_TERM_IO: /* Terminate the I/O process */
/* XXX Implement */
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
if ((ahc->features & AHC_WIDE) != 0)
cpi->hba_inquiry |= PI_WIDE_16;
if ((ahc->flags & AHC_TARGETMODE) != 0) {
cpi->target_sprt = PIT_PROCESSOR
| PIT_DISCONNECT
| PIT_TERM_IO;
} else {
cpi->target_sprt = 0;
}
cpi->hba_misc = (ahc->flags & AHC_INITIATORMODE)
? 0 : PIM_NOINITIATOR;
cpi->hba_eng_cnt = 0;
cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
cpi->max_lun = 64;
if (SIM_IS_SCSIBUS_B(ahc, sim)) {
cpi->initiator_id = ahc->our_id_b;
if ((ahc->flags & AHC_RESET_BUS_B) == 0)
cpi->hba_misc |= PIM_NOBUSRESET;
} else {
cpi->initiator_id = ahc->our_id;
if ((ahc->flags & AHC_RESET_BUS_A) == 0)
cpi->hba_misc |= PIM_NOBUSRESET;
}
cpi->bus_id = cam_sim_bus(sim);
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
cpi->base_transfer_speed = 3300;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
static void
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
{
struct ahc_softc *ahc;
struct cam_sim *sim;
sim = (struct cam_sim *)callback_arg;
ahc = (struct ahc_softc *)cam_sim_softc(sim);
switch (code) {
case AC_LOST_DEVICE:
{
struct ahc_devinfo devinfo;
int s;
ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim),
xpt_path_target_id(path),
xpt_path_lun_id(path),
SIM_CHANNEL(ahc, sim),
ROLE_UNKNOWN);
/*
* Revert to async/narrow transfers
* for the next device.
*/
s = splcam();
ahc_set_width(ahc, &devinfo, path, MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_GOAL|AHC_TRANS_CUR,
/*paused*/FALSE);
ahc_set_syncrate(ahc, &devinfo, path, /*syncrate*/NULL,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*period*/0, /*offset*/0, /*ppr_options*/0,
AHC_TRANS_GOAL|AHC_TRANS_CUR,
/*paused*/FALSE);
splx(s);
break;
}
default:
break;
}
}
static void
ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
int error)
{
struct scb *scb;
union ccb *ccb;
struct ahc_softc *ahc;
int s;
scb = (struct scb *)arg;
ccb = scb->ccb;
ahc = (struct ahc_softc *)ccb->ccb_h.ccb_ahc_ptr;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (error != 0) {
if (error == EFBIG)
ahcsetccbstatus(scb->ccb, CAM_REQ_TOO_BIG);
else
ahcsetccbstatus(scb->ccb, CAM_REQ_CMP_ERR);
if (nsegments != 0)
bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
ahcfreescb(ahc, scb);
xpt_done(ccb);
return;
}
if (nsegments != 0) {
struct ahc_dma_seg *sg;
bus_dma_segment_t *end_seg;
bus_dmasync_op_t op;
end_seg = dm_segs + nsegments;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
/* Copy the segments into our SG list */
sg = scb->sg_list;
while (dm_segs < end_seg) {
sg->addr = dm_segs->ds_addr;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/* XXX Add in the 5th byte of the address later. */
sg->len = dm_segs->ds_len;
sg++;
dm_segs++;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* Note where to find the SG entries in bus space.
* We also set the full residual flag which the
* sequencer will clear as soon as a data transfer
* occurs.
*/
scb->hscb->sgptr = scb->sg_list_phys | SG_FULL_RESID;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
op = BUS_DMASYNC_PREREAD;
else
op = BUS_DMASYNC_PREWRITE;
bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op);
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
struct target_data *tdata;
tdata = &scb->hscb->shared_data.tdata;
tdata->target_phases |= DPHASE_PENDING;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
tdata->data_phase = P_DATAOUT;
else
tdata->data_phase = P_DATAIN;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/*
* If the transfer is of an odd length and in the
* "in" direction (scsi->HostBus), then it may
* trigger a bug in the 'WideODD' feature of
* non-Ultra2 chips. Force the total data-length
* to be even by adding an extra, 1 byte, SG,
* element. We do this even if we are not currently
* negotiated wide as negotiation could occur before
* this command is executed.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
&& (ccb->csio.dxfer_len & 0x1) != 0
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&& (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
nsegments++;
if (nsegments > AHC_NSEG) {
ahcsetccbstatus(scb->ccb,
CAM_REQ_TOO_BIG);
bus_dmamap_unload(ahc->buffer_dmat,
scb->dmamap);
ahcfreescb(ahc, scb);
xpt_done(ccb);
return;
}
sg->addr = ahc->dma_bug_buf;
sg->len = 1;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg++;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
}
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
sg--;
sg->len |= AHC_DMA_LAST_SEG;
/* Copy the first SG into the "current" data pointer area */
scb->hscb->dataptr = scb->sg_list->addr;
scb->hscb->datacnt = scb->sg_list->len;
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scb->hscb->sgptr = SG_LIST_NULL;
scb->hscb->dataptr = 0;
scb->hscb->datacnt = 0;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scb->sg_count = nsegments;
s = splcam();
/*
* Last time we need to check if this SCB needs to
* be aborted.
*/
if (ahc_ccb_status(ccb) != CAM_REQ_INPROG) {
if (nsegments != 0)
bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap);
ahcfreescb(ahc, scb);
xpt_done(ccb);
splx(s);
return;
}
LIST_INSERT_HEAD(&ahc->pending_ccbs, &ccb->ccb_h,
sim_links.le);
ccb->ccb_h.status |= CAM_SIM_QUEUED;
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT)
ccb->ccb_h.timeout = 5 * 1000;
ccb->ccb_h.timeout_ch =
timeout(ahc_timeout, (caddr_t)scb,
(ccb->ccb_h.timeout * hz) / 1000);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* We only allow one untagged transaction
* per target in the initiator role unless
* we are storing a full busy target *lun*
* table in SCB space.
*/
if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0
&& (ahc->features & AHC_SCB_BTT) == 0) {
struct scb_tailq *untagged_q;
untagged_q = &(ahc->untagged_queues[ccb->ccb_h.target_id]);
TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe);
if (TAILQ_FIRST(untagged_q) != scb) {
splx(s);
return;
}
}
scb->flags |= SCB_ACTIVE;
if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
#if 0
printf("Continueing Immediate Command %d:%d\n",
ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
#endif
pause_sequencer(ahc);
if ((ahc->flags & AHC_PAGESCBS) == 0)
ahc_outb(ahc, SCBPTR, scb->hscb->tag);
ahc_outb(ahc, SCB_TAG, scb->hscb->tag);
ahc_outb(ahc, RETURN_1, CONT_MSG_LOOP);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_queue_scb(ahc, scb);
}
splx(s);
}
static void
ahc_poll(struct cam_sim *sim)
{
ahc_intr(cam_sim_softc(sim));
}
static void
ahc_setup_data(struct ahc_softc *ahc, struct ccb_scsiio *csio,
struct scb *scb)
{
struct hardware_scb *hscb;
struct ccb_hdr *ccb_h;
hscb = scb->hscb;
ccb_h = &csio->ccb_h;
if (ccb_h->func_code == XPT_SCSI_IO) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
hscb->cdb_len = csio->cdb_len;
if ((ccb_h->flags & CAM_CDB_POINTER) != 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (hscb->cdb_len > sizeof(hscb->cdb32)
|| (ccb_h->flags & CAM_CDB_PHYS) != 0) {
ahcsetccbstatus(scb->ccb, CAM_REQ_INVALID);
xpt_done(scb->ccb);
ahcfreescb(ahc, scb);
return;
}
if (hscb->cdb_len > 12) {
memcpy(hscb->cdb32,
csio->cdb_io.cdb_ptr,
hscb->cdb_len);
if ((ahc->flags & AHC_CMD_CHAN) == 0) {
hscb->shared_data.cdb_ptr =
scb->cdb32_busaddr;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
} else {
memcpy(hscb->shared_data.cdb,
csio->cdb_io.cdb_ptr,
hscb->cdb_len);
}
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (hscb->cdb_len > 12) {
memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes,
hscb->cdb_len);
if ((ahc->flags & AHC_CMD_CHAN) == 0) {
hscb->shared_data.cdb_ptr =
scb->cdb32_busaddr;
}
} else {
memcpy(hscb->shared_data.cdb,
csio->cdb_io.cdb_bytes,
hscb->cdb_len);
}
}
}
/* Only use S/G if there is a transfer */
if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) {
/* We've been given a pointer to a single buffer */
if ((ccb_h->flags & CAM_DATA_PHYS) == 0) {
int s;
int error;
s = splsoftvm();
error = bus_dmamap_load(ahc->buffer_dmat,
scb->dmamap,
csio->data_ptr,
csio->dxfer_len,
ahc_execute_scb,
scb, /*flags*/0);
if (error == EINPROGRESS) {
/*
* So as to maintain ordering,
* freeze the controller queue
* until our mapping is
* returned.
*/
xpt_freeze_simq(ahc->sim,
/*count*/1);
scb->ccb->ccb_h.status |=
CAM_RELEASE_SIMQ;
}
splx(s);
} else {
struct bus_dma_segment seg;
/* Pointer to physical buffer */
if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE)
panic("ahc_setup_data - Transfer size "
"larger than can device max");
seg.ds_addr = (intptr_t)csio->data_ptr;
seg.ds_len = csio->dxfer_len;
ahc_execute_scb(scb, &seg, 1, 0);
}
} else {
struct bus_dma_segment *segs;
if ((ccb_h->flags & CAM_DATA_PHYS) != 0)
panic("ahc_setup_data - Physical segment "
"pointers unsupported");
if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0)
panic("ahc_setup_data - Virtual segment "
"addresses unsupported");
/* Just use the segments provided */
segs = (struct bus_dma_segment *)csio->data_ptr;
ahc_execute_scb(scb, segs, csio->sglist_cnt, 0);
}
} else {
ahc_execute_scb(scb, NULL, 0, 0);
}
}
static void
ahc_freeze_devq(struct ahc_softc *ahc, struct cam_path *path)
{
int target;
char channel;
int lun;
target = xpt_path_target_id(path);
lun = xpt_path_lun_id(path);
channel = xpt_path_sim(path)->bus_id == 0 ? 'A' : 'B';
ahc_search_qinfifo(ahc, target, channel, lun,
/*tag*/SCB_LIST_NULL, ROLE_UNKNOWN,
CAM_REQUEUE_REQ, SEARCH_COMPLETE);
}
static void
ahcallocscbs(struct ahc_softc *ahc)
{
struct scb_data *scb_data;
struct scb *next_scb;
struct sg_map_node *sg_map;
bus_addr_t physaddr;
struct ahc_dma_seg *segs;
int newcount;
int i;
scb_data = ahc->scb_data;
if (scb_data->numscbs >= AHC_SCB_MAX)
/* Can't allocate any more */
return;
next_scb = &scb_data->scbarray[scb_data->numscbs];
sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT);
if (sg_map == NULL)
return;
/* Allocate S/G space for the next batch of SCBS */
if (bus_dmamem_alloc(scb_data->sg_dmat, (void **)&sg_map->sg_vaddr,
BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
free(sg_map, M_DEVBUF);
return;
}
SLIST_INSERT_HEAD(&scb_data->sg_maps, sg_map, links);
bus_dmamap_load(scb_data->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr,
PAGE_SIZE, ahcdmamapcb, &sg_map->sg_physaddr,
/*flags*/0);
segs = sg_map->sg_vaddr;
physaddr = sg_map->sg_physaddr;
newcount = (PAGE_SIZE / (AHC_NSEG * sizeof(struct ahc_dma_seg)));
for (i = 0; scb_data->numscbs < AHC_SCB_MAX && i < newcount; i++) {
int error;
next_scb->sg_list = segs;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
/*
* The sequencer always starts with the second entry.
* The first entry is embedded in the scb.
*/
next_scb->sg_list_phys = physaddr + sizeof(struct ahc_dma_seg);
next_scb->flags = SCB_FREE;
error = bus_dmamap_create(ahc->buffer_dmat, /*flags*/0,
&next_scb->dmamap);
if (error != 0)
break;
next_scb->hscb = &scb_data->hscbs[scb_data->numscbs];
next_scb->hscb->tag = ahc->scb_data->numscbs;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
next_scb->cdb32_busaddr =
ahc_hscb_busaddr(ahc, next_scb->hscb->tag)
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
+ offsetof(struct hardware_scb, cdb32);
SLIST_INSERT_HEAD(&ahc->scb_data->free_scbs,
next_scb, links.sle);
segs += AHC_NSEG;
physaddr += (AHC_NSEG * sizeof(struct ahc_dma_seg));
next_scb++;
ahc->scb_data->numscbs++;
}
}
#ifdef AHC_DUMP_SEQ
static void
ahc_dumpseq(struct ahc_softc* ahc)
{
int i;
int max_prog;
if ((ahc->chip & AHC_BUS_MASK) < AHC_PCI)
max_prog = 448;
else if ((ahc->features & AHC_ULTRA2) != 0)
max_prog = 768;
else
max_prog = 512;
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahc_outb(ahc, SEQADDR0, 0);
ahc_outb(ahc, SEQADDR1, 0);
for (i = 0; i < max_prog; i++) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t ins_bytes[4];
ahc_insb(ahc, SEQRAM, ins_bytes, 4);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
printf("0x%08x\n", ins_bytes[0] << 24
| ins_bytes[1] << 16
| ins_bytes[2] << 8
| ins_bytes[3]);
}
}
#endif
static void
ahc_loadseq(struct ahc_softc *ahc)
{
struct patch *cur_patch;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int i;
int downloaded;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int skip_addr;
uint8_t download_consts[2];
/* Setup downloadable constant table */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
download_consts[QOUTFIFO_OFFSET] = 0;
if (ahc->targetcmds != NULL)
download_consts[QOUTFIFO_OFFSET] += 32;
download_consts[QINFIFO_OFFSET] = download_consts[QOUTFIFO_OFFSET] + 1;
cur_patch = patches;
downloaded = 0;
skip_addr = 0;
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE|LOADRAM);
ahc_outb(ahc, SEQADDR0, 0);
ahc_outb(ahc, SEQADDR1, 0);
for (i = 0; i < sizeof(seqprog)/4; i++) {
if (ahc_check_patch(ahc, &cur_patch, i, &skip_addr) == 0) {
/*
* Don't download this instruction as it
* is in a patch that was removed.
*/
continue;
}
ahc_download_instr(ahc, i, download_consts);
downloaded++;
}
ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE);
restart_sequencer(ahc);
if (bootverbose)
printf(" %d instructions downloaded\n", downloaded);
}
static int
ahc_check_patch(struct ahc_softc *ahc, struct patch **start_patch,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int start_instr, u_int *skip_addr)
{
struct patch *cur_patch;
struct patch *last_patch;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int num_patches;
num_patches = sizeof(patches)/sizeof(struct patch);
last_patch = &patches[num_patches];
cur_patch = *start_patch;
while (cur_patch < last_patch && start_instr == cur_patch->begin) {
if (cur_patch->patch_func(ahc) == 0) {
/* Start rejecting code */
*skip_addr = start_instr + cur_patch->skip_instr;
cur_patch += cur_patch->skip_patch;
} else {
/* Accepted this patch. Advance to the next
* one and wait for our intruction pointer to
* hit this point.
*/
cur_patch++;
}
}
*start_patch = cur_patch;
if (start_instr < *skip_addr)
/* Still skipping */
return (0);
return (1);
}
static void
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_download_instr(struct ahc_softc *ahc, u_int instrptr, uint8_t *dconsts)
{
union ins_formats instr;
struct ins_format1 *fmt1_ins;
struct ins_format3 *fmt3_ins;
u_int opcode;
/* Structure copy */
instr = *(union ins_formats*)&seqprog[instrptr * 4];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#if BYTE_ORDER == BIG_ENDIAN
opcode = instr.format.bytes[0];
instr.format.bytes[0] = instr.format.bytes[3];
instr.format.bytes[3] = opcode;
opcode = instr.format.bytes[1];
instr.format.bytes[1] = instr.format.bytes[2];
instr.format.bytes[2] = opcode;
#endif
fmt1_ins = &instr.format1;
fmt3_ins = NULL;
/* Pull the opcode */
opcode = instr.format1.opcode;
switch (opcode) {
case AIC_OP_JMP:
case AIC_OP_JC:
case AIC_OP_JNC:
case AIC_OP_CALL:
case AIC_OP_JNE:
case AIC_OP_JNZ:
case AIC_OP_JE:
case AIC_OP_JZ:
{
struct patch *cur_patch;
int address_offset;
u_int address;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
u_int skip_addr;
u_int i;
fmt3_ins = &instr.format3;
address_offset = 0;
address = fmt3_ins->address;
cur_patch = patches;
skip_addr = 0;
for (i = 0; i < address;) {
ahc_check_patch(ahc, &cur_patch, i, &skip_addr);
if (skip_addr > i) {
int end_addr;
end_addr = MIN(address, skip_addr);
address_offset += end_addr - i;
i = skip_addr;
} else {
i++;
}
}
address -= address_offset;
fmt3_ins->address = address;
/* FALLTHROUGH */
}
case AIC_OP_OR:
case AIC_OP_AND:
case AIC_OP_XOR:
case AIC_OP_ADD:
case AIC_OP_ADC:
case AIC_OP_BMOV:
if (fmt1_ins->parity != 0) {
fmt1_ins->immediate = dconsts[fmt1_ins->immediate];
}
fmt1_ins->parity = 0;
/* FALLTHROUGH */
case AIC_OP_ROL:
if ((ahc->features & AHC_ULTRA2) != 0) {
int i, count;
/* Calculate odd parity for the instruction */
for (i = 0, count = 0; i < 31; i++) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint32_t mask;
mask = 0x01 << i;
if ((instr.integer & mask) != 0)
count++;
}
if ((count & 0x01) == 0)
instr.format1.parity = 1;
} else {
/* Compress the instruction for older sequencers */
if (fmt3_ins != NULL) {
instr.integer =
fmt3_ins->immediate
| (fmt3_ins->source << 8)
| (fmt3_ins->address << 16)
| (fmt3_ins->opcode << 25);
} else {
instr.integer =
fmt1_ins->immediate
| (fmt1_ins->source << 8)
| (fmt1_ins->destination << 16)
| (fmt1_ins->ret << 24)
| (fmt1_ins->opcode << 25);
}
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#if BYTE_ORDER == BIG_ENDIAN
opcode = instr.format.bytes[0];
instr.format.bytes[0] = instr.format.bytes[3];
instr.format.bytes[3] = opcode;
opcode = instr.format.bytes[1];
instr.format.bytes[1] = instr.format.bytes[2];
instr.format.bytes[2] = opcode;
#endif
ahc_outsb(ahc, SEQRAM, instr.bytes, 4);
break;
default:
panic("Unknown opcode encountered in seq program");
break;
}
}
static void
ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb) {
if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
struct ccb_hdr *ccbh;
scb->flags |= SCB_RECOVERY_SCB;
/*
* Take all queued, but not sent SCBs out of the equation.
* Also ensure that no new CCBs are queued to us while we
* try to fix this problem.
*/
if ((scb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
xpt_freeze_simq(ahc->sim, /*count*/1);
scb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
}
/*
* Go through all of our pending SCBs and remove
* any scheduled timeouts for them. We will reschedule
* them after we've successfully fixed this problem.
*/
ccbh = ahc->pending_ccbs.lh_first;
while (ccbh != NULL) {
struct scb *pending_scb;
pending_scb = (struct scb *)ccbh->ccb_scb_ptr;
untimeout(ahc_timeout, pending_scb, ccbh->timeout_ch);
ccbh = ccbh->sim_links.le.le_next;
}
}
}
static void
ahc_timeout(void *arg)
{
struct scb *scb;
struct ahc_softc *ahc;
int s, found;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
u_int last_phase;
int target;
int lun;
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
int i;
char channel;
scb = (struct scb *)arg;
ahc = (struct ahc_softc *)scb->ccb->ccb_h.ccb_ahc_ptr;
s = splcam();
/*
* Ensure that the card doesn't do anything
* behind our back. Also make sure that we
* didn't "just" miss an interrupt that would
* affect this timeout.
*/
do {
ahc_intr(ahc);
pause_sequencer(ahc);
} while (ahc_inb(ahc, INTSTAT) & INT_PEND);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
xpt_print_path(scb->ccb->ccb_h.path);
if ((scb->flags & SCB_ACTIVE) == 0) {
/* Previous timeout took care of me already */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
printf("Timedout SCB %d handled by another timeout\n",
scb->hscb->tag);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
splx(s);
return;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
target = SCB_GET_TARGET(ahc, scb);
channel = SCB_GET_CHANNEL(ahc, scb);
lun = SCB_GET_LUN(scb);
printf("SCB 0x%x - timed out ", scb->hscb->tag);
/*
* Take a snapshot of the bus state and print out
* some information so we can track down driver bugs.
*/
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
last_phase = ahc_inb(ahc, LASTPHASE);
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
for (i = 0; i < num_phases; i++) {
if (last_phase == phase_table[i].phase)
break;
}
printf("%s", phase_table[i].phasemsg);
printf(", SEQADDR == 0x%x\n",
ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8));
#if 0
printf("SSTAT1 == 0x%x\n", ahc_inb(ahc, SSTAT1));
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
printf("SSTAT3 == 0x%x\n", ahc_inb(ahc, SSTAT3));
printf("SCSIPHASE == 0x%x\n", ahc_inb(ahc, SCSIPHASE));
printf("SCSIRATE == 0x%x\n", ahc_inb(ahc, SCSIRATE));
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
printf("SCSIOFFSET == 0x%x\n", ahc_inb(ahc, SCSIOFFSET));
printf("SEQ_FLAGS == 0x%x\n", ahc_inb(ahc, SEQ_FLAGS));
printf("SCB_DATAPTR == 0x%x\n", ahc_inb(ahc, SCB_DATAPTR)
| ahc_inb(ahc, SCB_DATAPTR + 1) << 8
| ahc_inb(ahc, SCB_DATAPTR + 2) << 16
| ahc_inb(ahc, SCB_DATAPTR + 3) << 24);
printf("SCB_DATACNT == 0x%x\n", ahc_inb(ahc, SCB_DATACNT)
| ahc_inb(ahc, SCB_DATACNT + 1) << 8
| ahc_inb(ahc, SCB_DATACNT + 2) << 16);
printf("SCB_SGCOUNT == 0x%x\n", ahc_inb(ahc, SCB_SGCOUNT));
printf("CCSCBCTL == 0x%x\n", ahc_inb(ahc, CCSCBCTL));
printf("CCSCBCNT == 0x%x\n", ahc_inb(ahc, CCSCBCNT));
printf("DFCNTRL == 0x%x\n", ahc_inb(ahc, DFCNTRL));
printf("DFSTATUS == 0x%x\n", ahc_inb(ahc, DFSTATUS));
printf("CCHCNT == 0x%x\n", ahc_inb(ahc, CCHCNT));
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
if (scb->sg_count > 0) {
for (i = 0; i < scb->sg_count; i++) {
printf("sg[%d] - Addr 0x%x : Length %d\n",
i,
scb->sg_list[i].addr,
scb->sg_list[i].len);
}
}
#endif
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (scb->flags & (SCB_DEVICE_RESET|SCB_ABORT)) {
/*
* Been down this road before.
* Do a full bus reset.
*/
bus_reset:
ahcsetccbstatus(scb->ccb, CAM_CMD_TIMEOUT);
found = ahc_reset_channel(ahc, channel, /*Initiate Reset*/TRUE);
printf("%s: Issued Channel %c Bus Reset. "
"%d SCBs aborted\n", ahc_name(ahc), channel, found);
} else {
/*
* If we are a target, transition to bus free and report
* the timeout.
*
* The target/initiator that is holding up the bus may not
* be the same as the one that triggered this timeout
* (different commands have different timeout lengths).
* If the bus is idle and we are actiing as the initiator
* for this request, queue a BDR message to the timed out
* target. Otherwise, if the timed out transaction is
* active:
* Initiator transaction:
* Stuff the message buffer with a BDR message and assert
* ATN in the hopes that the target will let go of the bus
* and go to the mesgout phase. If this fails, we'll
* get another timeout 2 seconds later which will attempt
* a bus reset.
*
* Target transaction:
* Transition to BUS FREE and report the error.
* It's good to be the target!
*/
u_int active_scb_index;
active_scb_index = ahc_inb(ahc, SCB_TAG);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (last_phase != P_BUSFREE
&& (active_scb_index < ahc->scb_data->numscbs)) {
struct scb *active_scb;
/*
* If the active SCB is not from our device,
* assume that another device is hogging the bus
* and wait for it's timeout to expire before
* taking additional action.
*/
active_scb = &ahc->scb_data->scbarray[active_scb_index];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (active_scb->hscb->scsiid != scb->hscb->scsiid
|| active_scb->hscb->lun != scb->hscb->lun) {
struct ccb_hdr *ccbh;
u_int newtimeout;
xpt_print_path(scb->ccb->ccb_h.path);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
printf("Other SCB Timeout%s",
(scb->flags & SCB_OTHERTCL_TIMEOUT) != 0
? " again\n" : "\n");
scb->flags |= SCB_OTHERTCL_TIMEOUT;
newtimeout = MAX(active_scb->ccb->ccb_h.timeout,
scb->ccb->ccb_h.timeout);
ccbh = &scb->ccb->ccb_h;
scb->ccb->ccb_h.timeout_ch =
timeout(ahc_timeout, scb,
(newtimeout * hz) / 1000);
splx(s);
return;
}
/* It's us */
if ((scb->hscb->control & TARGET_SCB) != 0) {
/*
* Send back any queued up transactions
* and properly record the error condition.
*/
ahc_freeze_devq(ahc, scb->ccb->ccb_h.path);
ahcsetccbstatus(scb->ccb, CAM_CMD_TIMEOUT);
ahc_freeze_ccb(scb->ccb);
ahc_done(ahc, scb);
/* Will clear us from the bus */
restart_sequencer(ahc);
return;
}
ahc_set_recoveryscb(ahc, active_scb);
ahc_outb(ahc, MSG_OUT, MSG_BUS_DEV_RESET);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_outb(ahc, SCSISIGO, last_phase|ATNO);
xpt_print_path(active_scb->ccb->ccb_h.path);
printf("BDR message in message buffer\n");
active_scb->flags |= SCB_DEVICE_RESET;
active_scb->ccb->ccb_h.timeout_ch =
timeout(ahc_timeout, (caddr_t)active_scb, 2 * hz);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
} else {
int disconnected;
/* XXX Shouldn't panic. Just punt instead */
if ((scb->hscb->control & TARGET_SCB) != 0)
panic("Timed-out target SCB but bus idle");
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (last_phase != P_BUSFREE
&& (ahc_inb(ahc, SSTAT0) & TARGET) != 0) {
/* XXX What happened to the SCB? */
/* Hung target selection. Goto busfree */
printf("%s: Hung target selection\n",
ahc_name(ahc));
restart_sequencer(ahc);
return;
}
if (ahc_search_qinfifo(ahc, target, channel, lun,
scb->hscb->tag, ROLE_INITIATOR,
/*status*/0, SEARCH_COUNT) > 0) {
disconnected = FALSE;
} else {
disconnected = TRUE;
}
if (disconnected) {
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
u_int active_scb;
ahc_set_recoveryscb(ahc, scb);
/*
* Simply set the MK_MESSAGE control bit.
*/
scb->hscb->control |= MK_MESSAGE;
scb->flags |= SCB_QUEUED_MSG
| SCB_DEVICE_RESET;
/*
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
* Mark the cached copy of this SCB in the
* disconnected list too, so that a reconnect
* at this point causes a BDR or abort.
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
active_scb = ahc_inb(ahc, SCBPTR);
if (ahc_search_disc_list(ahc, target,
channel, lun,
scb->hscb->tag,
/*stop_on_first*/TRUE,
/*remove*/FALSE,
/*save_state*/FALSE)) {
u_int scb_control;
scb_control = ahc_inb(ahc, SCB_CONTROL);
scb_control |= MK_MESSAGE;
ahc_outb(ahc, SCB_CONTROL, scb_control);
}
ahc_outb(ahc, SCBPTR, active_scb);
/*
* Actually re-queue this SCB in case we can
* select the device before it reconnects.
* Clear out any entries in the QINFIFO first
* so we are the next SCB for this target
* to run.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_search_qinfifo(ahc,
SCB_GET_TARGET(ahc, scb),
channel, SCB_GET_LUN(scb),
SCB_LIST_NULL,
ROLE_INITIATOR,
CAM_REQUEUE_REQ,
SEARCH_COMPLETE);
xpt_print_path(scb->ccb->ccb_h.path);
printf("Queuing a BDR SCB\n");
ahc->qinfifo[ahc->qinfifonext++] =
scb->hscb->tag;
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF,
ahc->qinfifonext);
} else {
ahc_outb(ahc, KERNEL_QINPOS,
ahc->qinfifonext);
}
scb->ccb->ccb_h.timeout_ch =
timeout(ahc_timeout, (caddr_t)scb, 2 * hz);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
} else {
/* Go "immediatly" to the bus reset */
/* This shouldn't happen */
ahc_set_recoveryscb(ahc, scb);
xpt_print_path(scb->ccb->ccb_h.path);
printf("SCB %d: Immediate reset. "
"Flags = 0x%x\n", scb->hscb->tag,
scb->flags);
goto bus_reset;
}
}
}
splx(s);
}
static int
ahc_search_qinfifo(struct ahc_softc *ahc, int target, char channel,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int lun, u_int tag, role_t role, uint32_t status,
ahc_search_action action)
{
struct scb *scbp;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t qinpos;
uint8_t qintail;
uint8_t next, prev;
uint8_t curscbptr;
int found;
qinpos = ahc_inb(ahc, QINPOS);
qintail = ahc->qinfifonext;
found = 0;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (action == SEARCH_COMPLETE) {
/*
* Don't attempt to run any queued untagged transactions
* until we are done with the abort process.
*/
ahc_freeze_untagged_queues(ahc);
}
/*
* Start with an empty queue. Entries that are not chosen
* for removal will be re-added to the queue as we go.
*/
ahc->qinfifonext = qinpos;
while (qinpos != qintail) {
scbp = &ahc->scb_data->scbarray[ahc->qinfifo[qinpos]];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_match_scb(ahc, scbp, target, channel, lun, tag, role)) {
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* We found an scb that needs to be acted on.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
found++;
switch (action) {
case SEARCH_COMPLETE:
if (ahc_ccb_status(scbp->ccb) == CAM_REQ_INPROG)
ahcsetccbstatus(scbp->ccb, status);
ahc_freeze_ccb(scbp->ccb);
ahc_done(ahc, scbp);
break;
case SEARCH_COUNT:
ahc->qinfifo[ahc->qinfifonext++] =
scbp->hscb->tag;
break;
case SEARCH_REMOVE:
break;
}
} else {
ahc->qinfifo[ahc->qinfifonext++] = scbp->hscb->tag;
}
qinpos++;
}
if ((ahc->features & AHC_QUEUE_REGS) != 0) {
ahc_outb(ahc, HNSCB_QOFF, ahc->qinfifonext);
} else {
ahc_outb(ahc, KERNEL_QINPOS, ahc->qinfifonext);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* Search waiting for selection list.
*/
curscbptr = ahc_inb(ahc, SCBPTR);
next = ahc_inb(ahc, WAITING_SCBH); /* Start at head of list. */
prev = SCB_LIST_NULL;
while (next != SCB_LIST_NULL) {
uint8_t scb_index;
ahc_outb(ahc, SCBPTR, next);
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index >= ahc->scb_data->numscbs) {
panic("Waiting List inconsistency. "
"SCB index == %d, yet numscbs == %d.",
scb_index, ahc->scb_data->numscbs);
}
scbp = &ahc->scb_data->scbarray[scb_index];
if (ahc_match_scb(ahc, scbp, target, channel,
lun, SCB_LIST_NULL, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_REMOVE:
next = ahc_rem_wscb(ahc, next, prev);
break;
case SEARCH_COMPLETE:
next = ahc_rem_wscb(ahc, next, prev);
if (ahc_ccb_status(scbp->ccb) == CAM_REQ_INPROG)
ahcsetccbstatus(scbp->ccb, status);
ahc_freeze_ccb(scbp->ccb);
ahc_done(ahc, scbp);
break;
case SEARCH_COUNT:
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
break;
}
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
}
ahc_outb(ahc, SCBPTR, curscbptr);
if (action == SEARCH_COMPLETE)
ahc_release_untagged_queues(ahc);
return (found);
}
static void
ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb)
{
union ccb *abort_ccb;
abort_ccb = ccb->cab.abort_ccb;
switch (abort_ccb->ccb_h.func_code) {
case XPT_ACCEPT_TARGET_IO:
case XPT_IMMED_NOTIFY:
case XPT_CONT_TARGET_IO:
{
struct tmode_tstate *tstate;
struct tmode_lstate *lstate;
struct ccb_hdr_slist *list;
cam_status status;
status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate,
&lstate, TRUE);
if (status != CAM_REQ_CMP) {
ccb->ccb_h.status = status;
break;
}
if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO)
list = &lstate->accept_tios;
else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY)
list = &lstate->immed_notifies;
else
list = NULL;
if (list != NULL) {
struct ccb_hdr *curelm;
int found;
curelm = SLIST_FIRST(list);
found = 0;
if (curelm == &abort_ccb->ccb_h) {
found = 1;
SLIST_REMOVE_HEAD(list, sim_links.sle);
} else {
while(curelm != NULL) {
struct ccb_hdr *nextelm;
nextelm =
SLIST_NEXT(curelm, sim_links.sle);
if (nextelm == &abort_ccb->ccb_h) {
found = 1;
SLIST_NEXT(curelm,
sim_links.sle) =
SLIST_NEXT(nextelm,
sim_links.sle);
break;
}
curelm = nextelm;
}
}
if (found) {
abort_ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(abort_ccb);
ccb->ccb_h.status = CAM_REQ_CMP;
} else {
printf("Not found\n");
ccb->ccb_h.status = CAM_PATH_INVALID;
}
break;
}
/* FALLTHROUGH */
}
case XPT_SCSI_IO:
/* XXX Fully implement the hard ones */
ccb->ccb_h.status = CAM_UA_ABORT;
break;
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
xpt_done(ccb);
}
/*
* Abort all SCBs that match the given description (target/channel/lun/tag),
* setting their status to the passed in status if the status has not already
* been modified from CAM_REQ_INPROG. This routine assumes that the sequencer
* is paused before it is called.
*/
static int
ahc_abort_scbs(struct ahc_softc *ahc, int target, char channel,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int lun, u_int tag, role_t role, uint32_t status)
{
struct scb *scbp;
u_int active_scb;
int i;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int maxtarget;
int found;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* Don't attempt to run any queued untagged transactions
* until we are done with the abort process.
*/
ahc_freeze_untagged_queues(ahc);
/* restore this when we're done */
active_scb = ahc_inb(ahc, SCBPTR);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
found = ahc_search_qinfifo(ahc, target, channel, lun, SCB_LIST_NULL,
role, CAM_REQUEUE_REQ, SEARCH_COMPLETE);
/*
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Clean out the busy target table for any untagged commands.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
i = 0;
maxtarget = 16;
if (target != CAM_TARGET_WILDCARD) {
i = target;
maxtarget = target + 1;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
for (;i < maxtarget; i++) {
u_int scbid;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scbid = ahc_index_busy_tcl(ahc, BUILD_TCL(i << 4, 0),
/*unbusy*/FALSE);
scbp = &ahc->scb_data->scbarray[scbid];
if (scbid < ahc->scb_data->numscbs
aic7xxx.c: Correct the BUILD_TCL macro. It was placing the target id in the wrong bits. This was only an issue for adapters that do not perform SCB paging (aha-3940AUW for instance). Don't bother inlining ahc_index_busy_tcl. It is never used in a performance critical path and is a bit chunky. Correct ahc_index_busy_tcl to deal with "busy target tables" embedded in the latter half of 64byte SCBs. Don't initialize the busy target table to its empty state until after we have finished extracting configuration information from chip SRAM. In the common case of using 16 bytes of chip SRAM to do untagged target lookups, we were trashing the last 8 targets configuration data. (actually only target 8 because of the bug in the BUILD_TCL macro). Cram the "bus reset delivered" message back under bootverbose. Fix the cleanup of the SCB busy target table when aborting commands. If the lun is wildcarded, we must loop through all possible luns. aic7xxx.h: Only bother supporting 64 luns right now. It doesn't seem like either this driver or any peripherals will be doing information unit transfers (where the lun number is a 32 bit integer) any time soon. aic7xxx.seq: Fix support for the aic7895. We must flush the data FIFO if performing a manual transfer that is not a multiple of 8 bytes. We were doing this quite regularly for embedded cdbs. Manaually flush the fifo on earlier adapters when dealing with embedded cdbs too. We were stuffing the FIFO with 16 bytes instead, but triggering the flush is more efficient and allows us to remove two instructions from the "copy_to_fifo" routine.
2000-07-24 22:27:40 +00:00
&& ahc_match_scb(ahc, scbp, target, channel, lun, tag, role)) {
u_int minlun;
u_int maxlun;
if (lun == CAM_LUN_WILDCARD) {
/*
* Unless we are using an SCB based
* busy targets table, there is only
* one table entry for all luns of
* a target.
*/
minlun = 0;
maxlun = 1;
if ((ahc->flags & AHC_SCB_BTT) != 0)
maxlun = AHC_NUM_LUNS;
} else {
minlun = lun;
maxlun = lun + 1;
}
while (minlun < maxlun) {
ahc_index_busy_tcl(ahc, BUILD_TCL(i << 4,
minlun), /*unbusy*/TRUE);
minlun++;
}
}
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*
* Go through the disconnected list and remove any entries we
* have queued for completion, 0'ing their control byte too.
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
* We save the active SCB and restore it ourselves, so there
* is no reason for this search to restore it too.
*/
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_search_disc_list(ahc, target, channel, lun, tag,
/*stop_on_first*/FALSE, /*remove*/TRUE,
/*save_state*/FALSE);
/*
* Go through the hardware SCB array looking for commands that
* were active but not on any list.
*/
for(i = 0; i < ahc->scb_data->maxhscbs; i++) {
u_int scbid;
ahc_outb(ahc, SCBPTR, i);
scbid = ahc_inb(ahc, SCB_TAG);
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
scbp = &ahc->scb_data->scbarray[scbid];
if (scbid < ahc->scb_data->numscbs
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
&& ahc_match_scb(ahc, scbp, target, channel, lun, tag, role))
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
ahc_add_curscb_to_free_list(ahc);
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
/*
* Go through the pending CCB list and look for
* commands for this target that are still active.
* These are other tagged commands that were
* disconnected when the reset occured.
*/
{
struct ccb_hdr *ccb_h;
ccb_h = ahc->pending_ccbs.lh_first;
while (ccb_h != NULL) {
scbp = (struct scb *)ccb_h->ccb_scb_ptr;
ccb_h = ccb_h->sim_links.le.le_next;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_match_scb(ahc, scbp, target, channel,
lun, tag, role)) {
if (ahc_ccb_status(scbp->ccb) == CAM_REQ_INPROG)
ahcsetccbstatus(scbp->ccb, status);
ahc_freeze_ccb(scbp->ccb);
ahc_done(ahc, scbp);
found++;
}
}
}
ahc_outb(ahc, SCBPTR, active_scb);
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_release_untagged_queues(ahc);
return found;
}
static int
ahc_search_disc_list(struct ahc_softc *ahc, int target, char channel,
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
int lun, u_int tag, int stop_on_first, int remove,
int save_state)
{
struct scb *scbp;
u_int next;
u_int prev;
u_int count;
u_int active_scb;
count = 0;
next = ahc_inb(ahc, DISCONNECTED_SCBH);
prev = SCB_LIST_NULL;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (save_state) {
/* restore this when we're done */
active_scb = ahc_inb(ahc, SCBPTR);
} else
/* Silence compiler */
active_scb = SCB_LIST_NULL;
while (next != SCB_LIST_NULL) {
u_int scb_index;
ahc_outb(ahc, SCBPTR, next);
scb_index = ahc_inb(ahc, SCB_TAG);
if (scb_index >= ahc->scb_data->numscbs) {
panic("Disconnected List inconsistency. "
"SCB index == %d, yet numscbs == %d.",
scb_index, ahc->scb_data->numscbs);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (next == prev) {
panic("Disconnected List Loop. "
"cur SCBPTR == %x, prev SCBPTR == %x.",
next, prev);
}
scbp = &ahc->scb_data->scbarray[scb_index];
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_match_scb(ahc, scbp, target, channel, lun,
tag, ROLE_INITIATOR)) {
count++;
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (remove) {
next =
ahc_rem_scb_from_disc_list(ahc, prev, next);
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
if (stop_on_first)
break;
} else {
prev = next;
next = ahc_inb(ahc, SCB_NEXT);
}
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
if (save_state)
ahc_outb(ahc, SCBPTR, active_scb);
return (count);
}
static u_int
ahc_rem_scb_from_disc_list(struct ahc_softc *ahc, u_int prev, u_int scbptr)
{
u_int next;
ahc_outb(ahc, SCBPTR, scbptr);
next = ahc_inb(ahc, SCB_NEXT);
ahc_outb(ahc, SCB_CONTROL, 0);
ahc_add_curscb_to_free_list(ahc);
if (prev != SCB_LIST_NULL) {
ahc_outb(ahc, SCBPTR, prev);
ahc_outb(ahc, SCB_NEXT, next);
} else
ahc_outb(ahc, DISCONNECTED_SCBH, next);
return (next);
}
static void
ahc_add_curscb_to_free_list(struct ahc_softc *ahc)
{
/* Invalidate the tag so that ahc_find_scb doesn't think it's active */
ahc_outb(ahc, SCB_TAG, SCB_LIST_NULL);
ahc_outb(ahc, SCB_NEXT, ahc_inb(ahc, FREE_SCBH));
ahc_outb(ahc, FREE_SCBH, ahc_inb(ahc, SCBPTR));
}
/*
* Manipulate the waiting for selection list and return the
* scb that follows the one that we remove.
*/
static u_int
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_rem_wscb(struct ahc_softc *ahc, u_int scbpos, u_int prev)
{
u_int curscb, next;
/*
* Select the SCB we want to abort and
* pull the next pointer out of it.
*/
curscb = ahc_inb(ahc, SCBPTR);
ahc_outb(ahc, SCBPTR, scbpos);
next = ahc_inb(ahc, SCB_NEXT);
/* Clear the necessary fields */
ahc_outb(ahc, SCB_CONTROL, 0);
ahc_add_curscb_to_free_list(ahc);
/* update the waiting list */
if (prev == SCB_LIST_NULL) {
/* First in the list */
ahc_outb(ahc, WAITING_SCBH, next);
/*
* Ensure we aren't attempting to perform
* selection for this entry.
*/
ahc_outb(ahc, SCSISEQ, (ahc_inb(ahc, SCSISEQ) & ~ENSELO));
} else {
/*
* Select the scb that pointed to us
* and update its next pointer.
*/
ahc_outb(ahc, SCBPTR, prev);
ahc_outb(ahc, SCB_NEXT, next);
}
/*
* Point us back at the original scb position.
*/
ahc_outb(ahc, SCBPTR, curscb);
return next;
}
static void
ahc_clear_intstat(struct ahc_softc *ahc)
{
/* Clear any interrupt conditions this may have caused */
ahc_outb(ahc, CLRSINT0, CLRSELDO|CLRSELDI|CLRSELINGO);
ahc_outb(ahc, CLRSINT1, CLRSELTIMEO|CLRATNO|CLRSCSIRSTI
|CLRBUSFREE|CLRSCSIPERR|CLRPHASECHG|
CLRREQINIT);
ahc_outb(ahc, CLRINT, CLRSCSIINT);
}
static void
ahc_reset_current_bus(struct ahc_softc *ahc)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t scsiseq;
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENSCSIRST);
scsiseq = ahc_inb(ahc, SCSISEQ);
ahc_outb(ahc, SCSISEQ, scsiseq | SCSIRSTO);
DELAY(AHC_BUSRESET_DELAY);
/* Turn off the bus reset */
ahc_outb(ahc, SCSISEQ, scsiseq & ~SCSIRSTO);
ahc_clear_intstat(ahc);
/* Re-enable reset interrupts */
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) | ENSCSIRST);
}
static int
ahc_reset_channel(struct ahc_softc *ahc, char channel, int initiate_reset)
{
struct cam_path *path;
u_int initiator, target, max_scsiid;
u_int sblkctl;
u_int our_id;
int found;
int restart_needed;
char cur_channel;
ahc->pending_device = NULL;
pause_sequencer(ahc);
/*
* Run our command complete fifos to ensure that we perform
* completion processing on any commands that 'completed'
* before the reset occurred.
*/
ahc_run_qoutfifo(ahc);
if ((ahc->flags & AHC_TARGETMODE) != 0) {
Update copyrights to Y2K. 93cx6.c: Make the SRAM dump output a little prettier. aic7xxx.c: Store all SG entries into our SG array in kernel space. This makes data-overrun and other error reporting more useful as we can dump all SG entries. In the past, we only stored the SG entries that the sequencer might need to access, which meant we skipped the first element that is embedded into the SCB. Add a table of chip strings and replace ugly switch statements with table lookups. Add a table with bus phase strings and message reponses to parity errors in those phases. Use the table to pretty print bus phase messages as well as collapse another switch statement. Fix a bug in target mode that could cause us to unpause the sequencer early in bus reset processing. Add the 80MHz/DT mode into our syncrate table. This rate is not yet used or enabled. Correct some comments, clean up some code... aic7xxx.h: Add U160 controller feature information. Add some more bit fields for various SEEPROM formats. aic7xxx.reg: Add U160 register and register bit definitions. aic7xxx.seq: Make phasemis state tracking more straight forward. This avoids the consumption of SINDEX which is a very useful register. For the U160 chips, you must use the 'mov' instruction to update DFCNTRL. Using 'or' to set the PRELOADED bit is completely ineffective. At the end of the command phase, wair for our ACK signal to de-assert before disabling the SCSI dma engine. For slow devices, this avoids clearing the ACK before the other end has had a chance to see it and lower REQ.
2000-01-07 23:08:20 +00:00
ahc_run_tqinfifo(ahc, /*paused*/TRUE);
}
/*
* Reset the bus if we are initiating this reset
*/
sblkctl = ahc_inb(ahc, SBLKCTL);
cur_channel = 'A';
if ((ahc->features & AHC_TWIN) != 0
&& ((sblkctl & SELBUSB) != 0))
cur_channel = 'B';
if (cur_channel != channel) {
/* Case 1: Command for another bus is active
* Stealthily reset the other bus without
* upsetting the current bus.
*/
ahc_outb(ahc, SBLKCTL, sblkctl ^ SELBUSB);
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENBUSFREE);
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
if (initiate_reset)
ahc_reset_current_bus(ahc);
ahc_clear_intstat(ahc);
ahc_outb(ahc, SBLKCTL, sblkctl);
restart_needed = FALSE;
} else {
/* Case 2: A command from this bus is active or we're idle */
ahc_clear_msg_state(ahc);
ahc_outb(ahc, SIMODE1, ahc_inb(ahc, SIMODE1) & ~ENBUSFREE);
ahc_outb(ahc, SCSISEQ,
ahc_inb(ahc, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP));
if (initiate_reset)
ahc_reset_current_bus(ahc);
ahc_clear_intstat(ahc);
/*
* Since we are going to restart the sequencer, avoid
* a race in the sequencer that could cause corruption
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
* of our Q pointers by starting over from index 1.
*/
ahc->qoutfifonext = 0;
if ((ahc->features & AHC_QUEUE_REGS) != 0)
ahc_outb(ahc, SDSCB_QOFF, 0);
else
ahc_outb(ahc, QOUTPOS, 0);
if ((ahc->flags & AHC_TARGETMODE) != 0) {
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
ahc->tqinfifonext = 1;
ahc_outb(ahc, KERNEL_TQINPOS, ahc->tqinfifonext - 1);
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
ahc_outb(ahc, TQINPOS, ahc->tqinfifonext);
if ((ahc->features & AHC_HS_MAILBOX) != 0) {
u_int hs_mailbox;
hs_mailbox = ahc_inb(ahc, HS_MAILBOX);
hs_mailbox &= ~HOST_TQINPOS;
ahc_outb(ahc, HS_MAILBOX, hs_mailbox);
}
}
restart_needed = TRUE;
}
/*
* Clean up all the state information for the
* pending transactions on this bus.
*/
found = ahc_abort_scbs(ahc, CAM_TARGET_WILDCARD, channel,
CAM_LUN_WILDCARD, SCB_LIST_NULL,
ROLE_UNKNOWN, CAM_SCSI_BUS_RESET);
if (channel == 'B') {
path = ahc->path_b;
our_id = ahc->our_id_b;
} else {
path = ahc->path;
our_id = ahc->our_id;
}
max_scsiid = (ahc->features & AHC_WIDE) ? 15 : 7;
/*
* Send an immediate notify ccb to all target more peripheral
* drivers affected by this action.
*/
for (target = 0; target <= max_scsiid; target++) {
struct tmode_tstate* tstate;
u_int lun;
tstate = ahc->enabled_targets[target];
if (tstate == NULL)
continue;
for (lun = 0; lun <= 7; lun++) {
struct tmode_lstate* lstate;
lstate = tstate->enabled_luns[lun];
if (lstate == NULL)
continue;
ahc_queue_lstate_event(ahc, lstate, CAM_TARGET_WILDCARD,
EVENT_TYPE_BUS_RESET, /*arg*/0);
ahc_send_lstate_events(ahc, lstate);
}
}
/* Notify the XPT that a bus reset occurred */
xpt_async(AC_BUS_RESET, path, NULL);
/*
* Revert to async/narrow transfers until we renegotiate.
*/
for (target = 0; target <= max_scsiid; target++) {
if (ahc->enabled_targets[target] == NULL)
continue;
for (initiator = 0; initiator <= max_scsiid; initiator++) {
struct ahc_devinfo devinfo;
ahc_compile_devinfo(&devinfo, target, initiator,
CAM_LUN_WILDCARD,
channel, ROLE_UNKNOWN);
ahc_set_width(ahc, &devinfo, path,
MSG_EXT_WDTR_BUS_8_BIT,
AHC_TRANS_CUR, /*paused*/TRUE);
ahc_set_syncrate(ahc, &devinfo, path,
/*syncrate*/NULL, /*period*/0,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
/*offset*/0, /*ppr_options*/0,
AHC_TRANS_CUR, /*paused*/TRUE);
}
}
if (restart_needed)
restart_sequencer(ahc);
else
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
unpause_sequencer(ahc);
return found;
}
static int
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_match_scb(struct ahc_softc *ahc, struct scb *scb, int target,
char channel, int lun, u_int tag, role_t role)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
int targ = SCB_GET_TARGET(ahc, scb);
char chan = SCB_GET_CHANNEL(ahc, scb);
int slun = SCB_GET_LUN(scb);
int match;
match = ((chan == channel) || (channel == ALL_CHANNELS));
if (match != 0)
match = ((targ == target) || (target == CAM_TARGET_WILDCARD));
if (match != 0)
match = ((lun == slun) || (lun == CAM_LUN_WILDCARD));
if (match != 0) {
int group;
group = XPT_FC_GROUP(scb->ccb->ccb_h.func_code);
if (role == ROLE_INITIATOR) {
match = (group == XPT_FC_GROUP_COMMON)
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
&& ((tag == scb->hscb->tag)
|| (tag == SCB_LIST_NULL));
} else if (role == ROLE_TARGET) {
match = (group == XPT_FC_GROUP_TMODE)
&& ((tag == scb->ccb->csio.tag_id)
|| (tag == SCB_LIST_NULL));
}
}
Kill the "unpause_always" argument to unpause_sequencer(). The reasons for optimizing the unpause operation no-longer exist, and this is much safer. When restarting the sequencer, reconstitute the free SCB list on the card. This deals with a single instruction gap between marking the SCB as free and actually getting it onto the free list. Reduce the number of transfer negotiations that occur. In the past, we renegotiated after every reported check condition status. This ensures that we catch devices that have unexpectidly reset. In this situation, the target will always report the check condition before performing a data-phase. The new behavior is to renegotiate for any check-condition where the residual matches the orginal data-length of the command (including 0 length transffers). This avoids renegotiations during things like variable tape block reads, where the check condition is reported only to indicate the residual of the read. Revamp the parity error detection logic. We now properly report and handle injected parity errors in all phases. The old code used to hang on message-in parity errors. Correct the reporting of selection timeout errors to the XPT. When a selection timeout occurs, only the currently selecting command is flagged with SELTO status instead of aborting all currently active commands to that target. Fix flipped arguments in ahc_match_scb and in some of the callers of this routine. I wish that gcc allowed you to request warnings for enums passed as ints. Make ahc_find_msg generically handle all message types. Work around the target mode data-in wideodd bug in all non-U2 chips. We can now do sync-wide target mode transfers in target mode across the hole product line. Use lastphase exclusively for handling timeouts. The current phase doesn't take the bus free state into account. Fix a bug in the timeout handler that could cause corruption of the disconnected list. When sending an embedded cdb to a target, ensure that we start on a quad word boundary in the data-fifo. It seems that unaligned stores do not work correctly.
2000-02-09 21:25:00 +00:00
return match;
}
static void
ahc_construct_sdtr(struct ahc_softc *ahc, u_int period, u_int offset)
{
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_SDTR_LEN;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_SDTR;
ahc->msgout_buf[ahc->msgout_index++] = period;
ahc->msgout_buf[ahc->msgout_index++] = offset;
ahc->msgout_len += 5;
}
static void
ahc_construct_wdtr(struct ahc_softc *ahc, u_int bus_width)
{
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_WDTR_LEN;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_WDTR;
ahc->msgout_buf[ahc->msgout_index++] = bus_width;
ahc->msgout_len += 4;
}
static void
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc_construct_ppr(struct ahc_softc *ahc, u_int period, u_int offset,
u_int bus_width, u_int ppr_options)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXTENDED;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_PPR_LEN;
ahc->msgout_buf[ahc->msgout_index++] = MSG_EXT_PPR;
ahc->msgout_buf[ahc->msgout_index++] = period;
ahc->msgout_buf[ahc->msgout_index++] = 0;
ahc->msgout_buf[ahc->msgout_index++] = offset;
ahc->msgout_buf[ahc->msgout_index++] = bus_width;
ahc->msgout_buf[ahc->msgout_index++] = ppr_options;
ahc->msgout_len += 8;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
static void
ahc_calc_residual(struct scb *scb)
{
struct hardware_scb *hscb;
struct status_pkt *spkt;
uint32_t resid;
/*
* 5 cases.
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* 1) No residual.
* SG_RESID_VALID clear in sgptr.
* 2) Transferless command
* 3) Never performed any transfers.
* sgptr has SG_FULL_RESID set.
* 4) No residual but target did not
* save data pointers after the
* last transfer, so sgptr was
* never updated.
* 5) We have a partial residual.
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* Use residual_sgptr to determine
* where we are.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
hscb = scb->hscb;
if ((hscb->sgptr & SG_RESID_VALID) == 0)
/* Case 1 */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
return;
hscb->sgptr &= ~SG_RESID_VALID;
if ((hscb->sgptr & SG_LIST_NULL) != 0)
/* Case 2 */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
return;
spkt = &hscb->shared_data.status;
if ((hscb->sgptr & SG_FULL_RESID) != 0)
/* Case 3 */
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
resid = scb->ccb->csio.dxfer_len;
else if ((spkt->residual_sg_ptr & SG_LIST_NULL) != 0)
/* Case 4 */
return;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
else if ((spkt->residual_sg_ptr & ~SG_PTR_MASK) != 0)
panic("Bogus resid sgptr value 0x%x\n", spkt->residual_sg_ptr);
else {
struct ahc_dma_seg *sg;
/*
* Remainder of the SG where the transfer
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
* stopped.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
resid = spkt->residual_datacnt & AHC_SG_LEN_MASK;
sg = ahc_sg_bus_to_virt(scb,
spkt->residual_sg_ptr & SG_PTR_MASK);
/* The residual sg_ptr always points to the next sg */
sg--;
/*
* Add up the contents of all residual
* SG segments that are after the SG where
* the transfer stopped.
*/
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
while ((sg->len & AHC_DMA_LAST_SEG) == 0) {
sg++;
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
resid += sg->len & AHC_SG_LEN_MASK;
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
}
if ((scb->flags & SCB_SENSE) == 0) {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scb->ccb->csio.resid = resid;
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
scb->ccb->csio.sense_resid = resid;
}
o Correct the offsets into the syncrate table for paritcular negotiation features (DT, ULTRA2, ULTRA, FAST). The offsets where not properly updated when the DT entry was added and so the driver could attempt to negotiate a speed faster than that supported by the target device or even requested by the user via SCSI-Select settings. * o Update the target mode incoming command queue kernel index value ever 128 commands instead of 32. This means that the kernel will always try to keep its index (as seen on the card - the kernel may actually have cleared more space) 128 commands ahead of where the sequencer is adding entries. o Use the HS_MAILBOX register instead of the KERNEL_TQINPOS location in SRAM to indicate the kernel's target queue possition on Ultra2 cards. This avoids the "pause bug" on these cards and also turns out to be much more efficient. o When enabling or disabling a particular target id for target mode, make sure that the taret id in the SCSIID register does not reference an ID that is not to receive target selections. This is only an issue on chips that support the multiple target id feature where the value in SCSIID will still affect selection behavior regardless of the values in the target id bit field registers. o Remove some target mode debugging printfs. o Make sure that the sense length reported in ATIO commands is always zero. This driver does not, yet, report HBA generated sense information for accepted commands. o Honor the CAM_TIME_INFINITY and CAM_TIME_DEFAULT values for the CCB timeout field. o Make the driver compile with AHC_DEBUG again. * Noticed by: Andrew Gallatin<gallatin@cs.duke.edu>
2000-03-18 22:28:20 +00:00
#ifdef AHC_DEBUG
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
if (ahc_debug & AHC_SHOWMISC) {
xpt_print_path(scb->ccb->ccb_h.path);
printf("Handled Residual of %d bytes\n", resid);
}
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
#endif
}
static void
ahc_update_pending_syncrates(struct ahc_softc *ahc)
{
struct ccb_hdr *ccbh;
int pending_ccb_count;
int i;
u_int saved_scbptr;
/*
* Traverse the pending SCB list and ensure that all of the
* SCBs there have the proper settings.
*/
ccbh = LIST_FIRST(&ahc->pending_ccbs);
pending_ccb_count = 0;
while (ccbh != NULL) {
struct ahc_devinfo devinfo;
union ccb *ccb;
struct scb *pending_scb;
struct hardware_scb *pending_hscb;
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int our_id, remote_id;
ccb = (union ccb*)ccbh;
pending_scb = (struct scb *)ccbh->ccb_scb_ptr;
pending_hscb = pending_scb->hscb;
if (ccbh->func_code == XPT_CONT_TARGET_IO) {
our_id = ccb->ccb_h.target_id;
remote_id = ccb->ctio.init_id;
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
our_id = SCB_IS_SCSIBUS_B(ahc, pending_scb)
? ahc->our_id_b : ahc->our_id;
remote_id = ccb->ccb_h.target_id;
}
ahc_compile_devinfo(&devinfo, our_id, remote_id,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SCB_GET_LUN(pending_scb),
SCB_GET_CHANNEL(ahc, pending_scb),
ROLE_UNKNOWN);
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
our_id, remote_id, &tstate);
pending_hscb->control &= ~ULTRAENB;
if ((tstate->ultraenb & devinfo.target_mask) != 0)
pending_hscb->control |= ULTRAENB;
pending_hscb->scsirate = tinfo->scsirate;
pending_hscb->scsioffset = tinfo->current.offset;
pending_ccb_count++;
ccbh = LIST_NEXT(ccbh, sim_links.le);
}
if (pending_ccb_count == 0)
return;
saved_scbptr = ahc_inb(ahc, SCBPTR);
/* Ensure that the hscbs down on the card match the new information */
for (i = 0; i < ahc->scb_data->maxhscbs; i++) {
u_int scb_tag;
ahc_outb(ahc, SCBPTR, i);
scb_tag = ahc_inb(ahc, SCB_TAG);
if (scb_tag != SCB_LIST_NULL) {
struct ahc_devinfo devinfo;
union ccb *ccb;
struct scb *pending_scb;
struct hardware_scb *pending_hscb;
struct ahc_initiator_tinfo *tinfo;
struct tmode_tstate *tstate;
u_int our_id, remote_id;
u_int control;
pending_scb = &ahc->scb_data->scbarray[scb_tag];
if (pending_scb->flags == SCB_FREE)
continue;
pending_hscb = pending_scb->hscb;
ccb = pending_scb->ccb;
if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) {
our_id = ccb->ccb_h.target_id;
remote_id = ccb->ctio.init_id;
} else {
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
our_id = SCB_IS_SCSIBUS_B(ahc, pending_scb)
? ahc->our_id_b : ahc->our_id;
remote_id = ccb->ccb_h.target_id;
}
ahc_compile_devinfo(&devinfo, our_id, remote_id,
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
SCB_GET_LUN(pending_scb),
SCB_GET_CHANNEL(ahc, pending_scb),
ROLE_UNKNOWN);
tinfo = ahc_fetch_transinfo(ahc, devinfo.channel,
our_id, remote_id, &tstate);
control = ahc_inb(ahc, SCB_CONTROL);
control &= ~ULTRAENB;
if ((tstate->ultraenb & devinfo.target_mask) != 0)
control |= ULTRAENB;
ahc_outb(ahc, SCB_CONTROL, control);
ahc_outb(ahc, SCB_SCSIRATE, tinfo->scsirate);
ahc_outb(ahc, SCB_SCSIOFFSET, tinfo->current.offset);
}
}
ahc_outb(ahc, SCBPTR, saved_scbptr);
}
#if UNUSED
static void
ahc_dump_targcmd(struct target_cmd *cmd)
{
o Convert to <inttypes.h> style fixed sized types to facilitate porting to other systems. o Normalize copyright text. o Clean up probe code function interfaces by passing around a single structure of common arguments instead of passing "too many" args in each function call. o Add support for the AAA-131 as a SCSI adapter. o Add support for the AHA-4944 courtesy of "Matthew N. Dodd" <winter@jurai.net o Correct manual termination support for PCI cards. The bit definitions for manual termination control in the SEEPROM were incorrect. o Add support for extracting NVRAM information from SCB 2 for BIOSen that use this mechanism to pass this data to OS drivers. o Properly set the STPWLEVEL bit in PCI config space based on the setting in an SEEPROM. o Go back to useing 32byte SCBs for all controllers. The current firmware allows us to embed 12byte cdbs on all controllers in a 32byte SCB, and larger cdbs are rarely used, so it is a better use of this space to offer more SCBs (32). o Add support for U160 transfers. o Add an idle loop executed during data transfers that prefetches S/G segments on controllers that have a secondary DMA engine (aic789X). o Improve the performance of reselections by avoiding an extra one byte DMA in the case of an SCB lookup miss for the reselecting target. We now keep a 16byte "untagged target" array on the card for dealing with untagged reselections. If the controller has external SCB ram and can support 64byte SCBs, then we use an "untagged target/lun" array to maximize concurrency. Without external SCB ram, the controller is limited to one untagged transaction per target, auto-request sense operations excluded. o Correct the setup of the STPWEN bit in SXFRCTL1. This control line is tri-stated until set to one, so set it to one and then set it to the desired value. o Add tagged queuing support to our target role implementation. o Handle the common cases of the ignore wide residue message in firmware. o Add preliminary support for 39bit addressing. o Add support for assembling on big-endian machines. Big-endian support is not complete in the driver. o Correctly remove SCBs in the waiting for selection queue when freezing a device queue. o Now that we understand more about the autoflush bug on the aic7890, only use the workaround on devices that need it. o Add a workaround for the "aic7890 hangs the system when you attempt to pause it" problem. We can now pause the aic7890 safely regardless of what instruction it is executing.
2000-07-18 20:12:14 +00:00
uint8_t *byte;
uint8_t *last_byte;
int i;
byte = &cmd->initiator_channel;
/* Debugging info for received commands */
last_byte = &cmd[1].initiator_channel;
i = 0;
while (byte < last_byte) {
if (i == 0)
printf("\t");
printf("%#x", *byte++);
i++;
if (i == 8) {
printf("\n");
i = 0;
} else {
printf(", ");
}
}
}
#endif
static void
ahc_shutdown(void *arg, int howto)
{
struct ahc_softc *ahc;
int i;
u_int sxfrctl1_a, sxfrctl1_b;
ahc = (struct ahc_softc *)arg;
pause_sequencer(ahc);
/*
* Preserve the value of the SXFRCTL1 register for all channels.
* It contains settings that affect termination and we don't want
* to disturb the integrity of the bus during shutdown in case
* we are in a multi-initiator setup.
*/
sxfrctl1_b = 0;
if ((ahc->features & AHC_TWIN) != 0) {
u_int sblkctl;
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, sblkctl | SELBUSB);
sxfrctl1_b = ahc_inb(ahc, SXFRCTL1);
ahc_outb(ahc, SBLKCTL, sblkctl & ~SELBUSB);
}
sxfrctl1_a = ahc_inb(ahc, SXFRCTL1);
/* This will reset most registers to 0, but not all */
ahc_reset(ahc);
if ((ahc->features & AHC_TWIN) != 0) {
u_int sblkctl;
sblkctl = ahc_inb(ahc, SBLKCTL);
ahc_outb(ahc, SBLKCTL, sblkctl | SELBUSB);
ahc_outb(ahc, SXFRCTL1, sxfrctl1_b);
ahc_outb(ahc, SBLKCTL, sblkctl & ~SELBUSB);
}
ahc_outb(ahc, SXFRCTL1, sxfrctl1_a);
ahc_outb(ahc, SCSISEQ, 0);
ahc_outb(ahc, SXFRCTL0, 0);
ahc_outb(ahc, DSPCISTATUS, 0);
for (i = TARG_SCSIRATE; i < HA_274_BIOSCTRL; i++)
ahc_outb(ahc, i, 0);
}
/*
* Add a target mode event to this lun's queue
*/
static void
ahc_queue_lstate_event(struct ahc_softc *ahc, struct tmode_lstate *lstate,
u_int initiator_id, u_int event_type, u_int event_arg)
{
struct ahc_tmode_event *event;
int pending;
xpt_freeze_devq(lstate->path, /*count*/1);
if (lstate->event_w_idx >= lstate->event_r_idx)
pending = lstate->event_w_idx - lstate->event_r_idx;
else
pending = AHC_TMODE_EVENT_BUFFER_SIZE + 1
- (lstate->event_r_idx - lstate->event_w_idx);
if (event_type == EVENT_TYPE_BUS_RESET
|| event_type == MSG_BUS_DEV_RESET) {
/*
* Any earlier events are irrelevant, so reset our buffer.
* This has the effect of allowing us to deal with reset
* floods (an external device holding down the reset line)
* without losing the event that is really interesting.
*/
lstate->event_r_idx = 0;
lstate->event_w_idx = 0;
xpt_release_devq(lstate->path, pending, /*runqueue*/FALSE);
}
if (pending == AHC_TMODE_EVENT_BUFFER_SIZE) {
xpt_print_path(lstate->path);
printf("immediate event %x:%x lost\n",
lstate->event_buffer[lstate->event_r_idx].event_type,
lstate->event_buffer[lstate->event_r_idx].event_arg);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
xpt_release_devq(lstate->path, /*count*/1, /*runqueue*/FALSE);
}
event = &lstate->event_buffer[lstate->event_w_idx];
event->initiator_id = initiator_id;
event->event_type = event_type;
event->event_arg = event_arg;
lstate->event_w_idx++;
if (lstate->event_w_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_w_idx = 0;
}
/*
* Send any target mode events queued up waiting
* for immediate notify resources.
*/
static void
ahc_send_lstate_events(struct ahc_softc *ahc, struct tmode_lstate *lstate)
{
struct ccb_hdr *ccbh;
struct ccb_immed_notify *inot;
while (lstate->event_r_idx != lstate->event_w_idx
&& (ccbh = SLIST_FIRST(&lstate->immed_notifies)) != NULL) {
struct ahc_tmode_event *event;
event = &lstate->event_buffer[lstate->event_r_idx];
SLIST_REMOVE_HEAD(&lstate->immed_notifies, sim_links.sle);
inot = (struct ccb_immed_notify *)ccbh;
switch (event->event_type) {
case EVENT_TYPE_BUS_RESET:
ccbh->status = CAM_SCSI_BUS_RESET|CAM_DEV_QFRZN;
break;
default:
ccbh->status = CAM_MESSAGE_RECV|CAM_DEV_QFRZN;
inot->message_args[0] = event->event_type;
inot->message_args[1] = event->event_arg;
break;
}
inot->initiator_id = event->initiator_id;
inot->sense_len = 0;
xpt_done((union ccb *)inot);
lstate->event_r_idx++;
if (lstate->event_r_idx == AHC_TMODE_EVENT_BUFFER_SIZE)
lstate->event_r_idx = 0;
}
}