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freebsd_amp_hwpstate/sys/cam/scsi/scsi_sa.c

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SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
*
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
* Implementation of SCSI Sequential Access Peripheral driver for CAM.
*
* Copyright (c) 1997 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, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
*
* Substantial subsequent modifications
* Copyright (c) 1999 Matthew Jacob
* NASA Ames Research Center,
* Feral Software
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
#include <sys/param.h>
#include <sys/queue.h>
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
1999-12-29 04:46:21 +00:00
#ifdef _KERNEL
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
#include <sys/systm.h>
#include <sys/kernel.h>
#endif
#include <sys/types.h>
#include <sys/buf.h>
#include <sys/malloc.h>
#include <sys/mtio.h>
#include <sys/conf.h>
#include <sys/buf.h>
#include <sys/devicestat.h>
#include <machine/limits.h>
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
1999-12-29 04:46:21 +00:00
#ifndef _KERNEL
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
#include <stdio.h>
#include <string.h>
#endif
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_extend.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#include <cam/scsi/scsi_sa.h>
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
1999-12-29 04:46:21 +00:00
#ifdef _KERNEL
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Patches from DES to create three new kernel config options to control timeouts in the SA driver (timeouts for space, rewind and erase). Folks can lengthen the timeouts if their hardware is especially slow, or shorten them if they want to be notified of errors a little sooner. Also, get rid of two OD driver options. The od driver has been made obsolete by the da driver. Reviewed by: ken, gibbs Submitted by: Dag-Erling Coidan Smørgrav <des@FreeBSD.ORG>
1998-10-02 05:15:51 +00:00
#include <opt_sa.h>
#ifndef SA_SPACE_TIMEOUT
#define SA_SPACE_TIMEOUT 1 * 60
#endif
#ifndef SA_REWIND_TIMEOUT
#define SA_REWIND_TIMEOUT 2 * 60
#endif
#ifndef SA_ERASE_TIMEOUT
#define SA_ERASE_TIMEOUT 4 * 60
#endif
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
Another 1FM@EOD quirk (from mike@sentex.net for a Seagate STT20000), and add a config option that allows one to default to 1FM@EOD for tapes otherwise unquirked or unknown as to which to prefer. Note that tcopy will be broken for these tapes until tcopy is fixed.
1999-10-02 20:17:16 +00:00
* Additional options that can be set for config: SA_1FM_AT_EOT
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
*/
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
#ifndef UNUSED_PARAMETER
#define UNUSED_PARAMETER(x) x = x
#endif
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
#define QFRLS(ccb) \
if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
/*
* Driver states
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
typedef enum {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SA_STATE_NORMAL, SA_STATE_ABNORMAL
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} sa_state;
typedef enum {
SA_CCB_BUFFER_IO,
SA_CCB_WAITING
} sa_ccb_types;
#define ccb_type ppriv_field0
#define ccb_bp ppriv_ptr1
typedef enum {
SA_FLAG_OPEN = 0x0001,
SA_FLAG_FIXED = 0x0002,
SA_FLAG_TAPE_LOCKED = 0x0004,
SA_FLAG_TAPE_MOUNTED = 0x0008,
SA_FLAG_TAPE_WP = 0x0010,
SA_FLAG_TAPE_WRITTEN = 0x0020,
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
SA_FLAG_EOM_PENDING = 0x0040,
SA_FLAG_EIO_PENDING = 0x0080,
SA_FLAG_EOF_PENDING = 0x0100,
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
SA_FLAG_EOF_PENDING),
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
SA_FLAG_INVALID = 0x0200,
SA_FLAG_COMP_ENABLED = 0x0400,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SA_FLAG_COMP_SUPP = 0x0800,
SA_FLAG_COMP_UNSUPP = 0x1000,
SA_FLAG_TAPE_FROZEN = 0x2000
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} sa_flags;
typedef enum {
SA_MODE_REWIND = 0x00,
SA_MODE_NOREWIND = 0x01,
SA_MODE_OFFLINE = 0x02
} sa_mode;
typedef enum {
SA_PARAM_NONE = 0x00,
SA_PARAM_BLOCKSIZE = 0x01,
SA_PARAM_DENSITY = 0x02,
SA_PARAM_COMPRESSION = 0x04,
SA_PARAM_BUFF_MODE = 0x08,
SA_PARAM_NUMBLOCKS = 0x10,
SA_PARAM_WP = 0x20,
SA_PARAM_SPEED = 0x40,
SA_PARAM_ALL = 0x7f
} sa_params;
typedef enum {
SA_QUIRK_NONE = 0x00,
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
SA_QUIRK_NOCOMP = 0x01, /* can't deal with compression at all */
SA_QUIRK_FIXED = 0x02, /* force fixed mode */
SA_QUIRK_VARIABLE = 0x04, /* force variable mode */
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
Add a quirk type (and one for ARCHIVE Python's) that disables the dummy read at sa_mount that attempts to latch up density. This breaks on at least one drive and sends it into the weeds. Approved: jkh
2000-02-03 18:29:25 +00:00
SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
SA_QUIRK_NODREAD = 0x20 /* Don't try and dummy read density */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} sa_quirks;
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
/* units are bits 4-7, 16-21 (1024 units) */
#define SAUNIT(DEV) \
(((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16))
#define SAMODE(z) ((minor(z) & 0x3))
#define SADENSITY(z) (((minor(z) >> 2) & 0x3))
#define SA_IS_CTRL(z) (minor(z) & (1 << 29))
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
#define SA_NOT_CTLDEV 0
#define SA_CTLDEV 1
#define SA_ATYPE_R 0
#define SA_ATYPE_NR 1
#define SA_ATYPE_ER 2
#define SAMINOR(ctl, unit, mode, access) \
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \
(mode << 0x2) | (access & 0x3))
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
#define SA_NUM_MODES 4
struct sa_devs {
dev_t ctl_dev;
struct sa_mode_devs {
dev_t r_dev;
dev_t nr_dev;
dev_t er_dev;
} mode_devs[SA_NUM_MODES];
dev_t r_dev;
dev_t nr_dev;
dev_t er_dev;
};
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
struct sa_softc {
sa_state state;
sa_flags flags;
sa_quirks quirks;
struct buf_queue_head buf_queue;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
int queue_count;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
struct devstat device_stats;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
struct sa_devs devs;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int blk_gran;
int blk_mask;
int blk_shift;
u_int32_t max_blk;
u_int32_t min_blk;
u_int32_t comp_algorithm;
u_int32_t saved_comp_algorithm;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
u_int32_t media_blksize;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
u_int32_t last_media_blksize;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
u_int32_t media_numblks;
u_int8_t media_density;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
u_int8_t speed;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
u_int8_t scsi_rev;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
u_int8_t dsreg; /* mtio mt_dsreg, redux */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int buffer_mode;
int filemarks;
union ccb saved_ccb;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* Relative to BOT Location.
*/
daddr_t fileno;
daddr_t blkno;
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
/*
* Latched Error Info
*/
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
struct {
struct scsi_sense_data _last_io_sense;
u_int32_t _last_io_resid;
u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
struct scsi_sense_data _last_ctl_sense;
u_int32_t _last_ctl_resid;
u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
#define last_io_sense errinfo._last_io_sense
#define last_io_resid errinfo._last_io_resid
#define last_io_cdb errinfo._last_io_cdb
#define last_ctl_sense errinfo._last_ctl_sense
#define last_ctl_resid errinfo._last_ctl_resid
#define last_ctl_cdb errinfo._last_ctl_cdb
} errinfo;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* Misc other flags/state
*/
u_int32_t
: 31,
ctrl_mode : 1; /* control device open */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
};
struct sa_quirk_entry {
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
struct scsi_inquiry_pattern inq_pat; /* matching pattern */
sa_quirks quirks; /* specific quirk type */
u_int32_t prefblk; /* preferred blocksize when in fixed mode */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
};
static struct sa_quirk_entry sa_quirk_table[] =
{
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
Add a quirk type (and one for ARCHIVE Python's) that disables the dummy read at sa_mount that attempts to latch up density. This breaks on at least one drive and sends it into the weeds. Approved: jkh
2000-02-03 18:29:25 +00:00
"Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
"Python*", "*"}, SA_QUIRK_NODREAD, 0
...nor does this old TDC3620 like to be asked for compression. But well, now it's running again!
1998-11-26 10:47:52 +00:00
},
Force ARCHIVE Vipers to be FIXED
1998-12-28 19:21:12 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
"VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
"VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
"T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
Force ARCHIVE Vipers to be FIXED
1998-12-28 19:21:12 +00:00
},
Make HP T4000S quirk to FIXED mode
1999-01-11 18:26:25 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
"T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
},
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
"HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
"*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
"123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
},
Ooops- forgot to commit this. PR: 14009 Submitted by: jreynold@primenet.com
1999-09-28 05:14:52 +00:00
{ /* jreynold@primenet.com */
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
"STT8000N*", "*"}, SA_QUIRK_1FM, 0
},
Another 1FM@EOD quirk (from mike@sentex.net for a Seagate STT20000), and add a config option that allows one to default to 1FM@EOD for tapes otherwise unquirked or unknown as to which to prefer. Note that tcopy will be broken for these tapes until tcopy is fixed.
1999-10-02 20:17:16 +00:00
{ /* mike@sentex.net */
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
"STT20000*", "*"}, SA_QUIRK_1FM, 0
},
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
" TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
Make HP T4000S quirk to FIXED mode
1999-01-11 18:26:25 +00:00
},
Add TDC 3800 to quirk list for fixed mode device. PR:11866 Submitted by: Helge Oldach hmo@sep.hamburg.com
1999-05-25 23:10:54 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
" TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
},
Quirk Tandberg 4100 like Tandberg 4200. PR: 11675 Reviewed by: msmith@FreeBSD.ORG Submitted by: blank@uni-trier.de
1999-06-24 15:21:10 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
" TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
},
...nor does this old TDC3620 like to be asked for compression. But well, now it's running again!
1998-11-26 10:47:52 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
" TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
},
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
" SLR*", "*"}, SA_QUIRK_1FM, 0
},
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
"5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
Make WangTek 51000 a fixed block device. PR: kern/11194 Obtained from:naddy@mips.rhein-neckar.de
1999-04-18 01:05:03 +00:00
},
{
{ T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
"51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
};
static d_open_t saopen;
static d_close_t saclose;
static d_strategy_t sastrategy;
static d_ioctl_t saioctl;
static periph_init_t sainit;
static periph_ctor_t saregister;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
static periph_oninv_t saoninvalidate;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static periph_dtor_t sacleanup;
static periph_start_t sastart;
static void saasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg);
static void sadone(struct cam_periph *periph,
union ccb *start_ccb);
static int saerror(union ccb *ccb, u_int32_t cam_flags,
u_int32_t sense_flags);
static int sacheckeod(struct cam_periph *periph);
static int sagetparams(struct cam_periph *periph,
sa_params params_to_get,
u_int32_t *blocksize, u_int8_t *density,
u_int32_t *numblocks, int *buff_mode,
u_int8_t *write_protect, u_int8_t *speed,
int *comp_supported, int *comp_enabled,
u_int32_t *comp_algorithm,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
sa_comp_t *comp_page);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static int sasetparams(struct cam_periph *periph,
sa_params params_to_set,
u_int32_t blocksize, u_int8_t density,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
u_int32_t comp_algorithm,
u_int32_t sense_flags);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static void saprevent(struct cam_periph *periph, int action);
static int sarewind(struct cam_periph *periph);
static int saspace(struct cam_periph *periph, int count,
scsi_space_code code);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
static int samount(struct cam_periph *, int, dev_t);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static int saretension(struct cam_periph *periph);
static int sareservereleaseunit(struct cam_periph *periph,
int reserve);
static int saloadunload(struct cam_periph *periph, int load);
static int saerase(struct cam_periph *periph, int longerase);
static int sawritefilemarks(struct cam_periph *periph,
int nmarks, int setmarks);
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
static int sardpos(struct cam_periph *periph, int, u_int32_t *);
static int sasetpos(struct cam_periph *periph, int, u_int32_t *);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static struct periph_driver sadriver =
{
sainit, "sa",
TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
};
DATA_SET(periphdriver_set, sadriver);
/* For 2.2-stable support */
#ifndef D_TAPE
#define D_TAPE 0
#endif
#define SA_CDEV_MAJOR 14
This commit should be a extensive NO-OP: Reformat and initialize correctly all "struct cdevsw". Initialize the d_maj and d_bmaj fields. The d_reset field was not removed, although it is never used. I used a program to do most of this, so all the files now use the same consistent format. Please keep it that way. Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
static struct cdevsw sa_cdevsw = {
/* open */ saopen,
/* close */ saclose,
/* read */ physread,
/* write */ physwrite,
/* ioctl */ saioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ sastrategy,
/* name */ "sa",
/* maj */ SA_CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ D_TAPE,
Don't register a block major for tapes. Reviewed by: mjacob
1999-09-08 17:01:41 +00:00
/* bmaj */ -1
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
};
static struct extend_array *saperiphs;
static int
saopen(dev_t dev, int flags, int fmt, struct proc *p)
{
struct cam_periph *periph;
struct sa_softc *softc;
int unit;
int mode;
int density;
int error;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
int s;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
unit = SAUNIT(dev);
mode = SAMODE(dev);
density = SADENSITY(dev);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
s = splsoftcam();
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
periph = cam_extend_get(saperiphs, unit);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (periph == NULL) {
(void) splx(s);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (ENXIO);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc = (struct sa_softc *)periph->softc;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
splx(s);
return (error);
}
splx(s);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
cam_periph_unlock(periph);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (ENXIO);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
}
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (SA_IS_CTRL(dev)) {
softc->ctrl_mode = 1;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
cam_periph_unlock(periph);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
return (0);
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (softc->flags & SA_FLAG_OPEN) {
error = EBUSY;
} else if (softc->flags & SA_FLAG_INVALID) {
error = ENXIO;
} else {
/*
* The function samount ensures media is loaded and ready.
* It also does a device RESERVE if the tape isn't yet mounted.
*/
error = samount(periph, flags, dev);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (error) {
cam_periph_release(periph);
} else {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
saprevent(periph, PR_PREVENT);
softc->flags |= SA_FLAG_OPEN;
}
cam_periph_unlock(periph);
return (error);
}
static int
saclose(dev_t dev, int flag, int fmt, struct proc *p)
{
struct cam_periph *periph;
struct sa_softc *softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
int unit, mode, error, writing, tmp;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
int closedbits = SA_FLAG_OPEN;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
unit = SAUNIT(dev);
mode = SAMODE(dev);
periph = cam_extend_get(saperiphs, unit);
if (periph == NULL)
return (ENXIO);
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
return (error);
}
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (SA_IS_CTRL(dev)) {
softc->ctrl_mode = 0;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
cam_periph_release(periph);
cam_periph_unlock(periph);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
return (0);
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* Were we writing the tape?
*/
writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0;
/*
* See whether or not we need to write filemarks. If this
* fails, we probably have to assume we've lost tape
* position.
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
*/
error = sacheckeod(periph);
if (error) {
xpt_print_path(periph->path);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
printf("failed to write terminating filemark(s)\n");
softc->flags |= SA_FLAG_TAPE_FROZEN;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Whatever we end up doing, allow users to eject tapes from here on.
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
saprevent(periph, PR_ALLOW);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Decide how to end...
*/
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
closedbits |= SA_FLAG_TAPE_FROZEN;
} else switch (mode) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case SA_MODE_OFFLINE:
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* An 'offline' close is an unconditional release of
* frozen && mount conditions, irrespective of whether
* these operations succeeded. The reason for this is
* to allow at least some kind of programmatic way
* around our state getting all fouled up. If somebody
* issues an 'offline' command, that will be allowed
* to clear state.
*/
(void) sarewind(periph);
(void) saloadunload(periph, FALSE);
closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
case SA_MODE_REWIND:
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* If the rewind fails, return an error- if anyone cares,
* but not overwriting any previous error.
*
* We don't clear the notion of mounted here, but we do
* clear the notion of frozen if we successfully rewound.
*/
tmp = sarewind(periph);
if (tmp) {
if (error != 0)
error = tmp;
} else {
closedbits |= SA_FLAG_TAPE_FROZEN;
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case SA_MODE_NOREWIND:
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* If we're not rewinding/unloading the tape, find out
* whether we need to back up over one of two filemarks
* we wrote (if we wrote two filemarks) so that appends
* from this point on will be sane.
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) {
tmp = saspace(periph, -1, SS_FILEMARKS);
if (tmp) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
xpt_print_path(periph->path);
printf("unable to backspace over one of double"
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
" filemarks at end of tape\n");
xpt_print_path(periph->path);
Ooops- forgot to commit this. PR: 14009 Submitted by: jreynold@primenet.com
1999-09-28 05:14:52 +00:00
printf("it is possible that this device"
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
" needs a SA_QUIRK_1FM quirk set for it\n");
softc->flags |= SA_FLAG_TAPE_FROZEN;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
default:
xpt_print_path(periph->path);
panic("unknown mode 0x%x in saclose\n", mode);
/* NOTREACHED */
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
* We wish to note here that there are no more filemarks to be written.
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
*/
softc->filemarks = 0;
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* And we are no longer open for business.
*/
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
softc->flags &= ~closedbits;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Inform users if tape state if frozen....
*/
if (softc->flags & SA_FLAG_TAPE_FROZEN) {
xpt_print_path(periph->path);
printf("tape is now frozen- use an OFFLINE, REWIND or MTEOM "
"command to clear this state.\n");
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/* release the device if it is no longer mounted */
if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0)
sareservereleaseunit(periph, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
cam_periph_unlock(periph);
cam_periph_release(periph);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
/*
* Actually translate the requested transfer into one the physical driver
* can understand. The transfer is described by a buf and will include
* only one physical transfer.
*/
static void
sastrategy(struct buf *bp)
{
struct cam_periph *periph;
struct sa_softc *softc;
u_int unit;
int s;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (SA_IS_CTRL(bp->b_dev)) {
bp->b_error = EINVAL;
goto bad;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
unit = SAUNIT(bp->b_dev);
periph = cam_extend_get(saperiphs, unit);
if (periph == NULL) {
bp->b_error = ENXIO;
goto bad;
}
softc = (struct sa_softc *)periph->softc;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
s = splsoftcam();
if (softc->flags & SA_FLAG_INVALID) {
splx(s);
bp->b_error = ENXIO;
goto bad;
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (softc->flags & SA_FLAG_TAPE_FROZEN) {
splx(s);
bp->b_error = EPERM;
goto bad;
}
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
splx(s);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* If it's a null transfer, return immediatly
*/
if (bp->b_bcount == 0)
goto done;
/* valid request? */
if (softc->flags & SA_FLAG_FIXED) {
/*
* Fixed block device. The byte count must
* be a multiple of our block size.
*/
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
if (((softc->blk_mask != ~0) &&
((bp->b_bcount & softc->blk_mask) != 0)) ||
((softc->blk_mask == ~0) &&
((bp->b_bcount % softc->min_blk) != 0))) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_print_path(periph->path);
printf("Invalid request. Fixed block device "
"requests must be a multiple "
"of %d bytes\n", softc->min_blk);
bp->b_error = EINVAL;
goto bad;
}
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
} else if ((bp->b_bcount > softc->max_blk) ||
(bp->b_bcount < softc->min_blk) ||
(bp->b_bcount & softc->blk_mask) != 0) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_print_path(periph->path);
printf("Invalid request. Variable block device "
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
"requests must be ");
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (softc->blk_mask != 0) {
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
printf("a multiple of %d ", (0x1 << softc->blk_gran));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
printf("between %d and %d bytes\n", softc->min_blk,
softc->max_blk);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bp->b_error = EINVAL;
goto bad;
}
/*
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
* Mask interrupts so that the device cannot be invalidated until
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
* after we are in the queue. Otherwise, we might not properly
* clean up one of the buffers.
*/
s = splbio();
/*
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
* Place it at the end of the queue.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
bufq_insert_tail(&softc->buf_queue, bp);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->queue_count++;
CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastrategy: enqueuing a %d "
"%s byte %s queue count now %d\n", (int) bp->b_bcount,
(softc->flags & SA_FLAG_FIXED)? "fixed" : "variable",
(bp->b_flags & B_READ)? "read" : "write", softc->queue_count));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
splx(s);
/*
* Schedule ourselves for performing the work.
*/
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
xpt_schedule(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return;
bad:
bp->b_flags |= B_ERROR;
done:
/*
* Correctly set the buf to indicate a completed xfer
*/
bp->b_resid = bp->b_bcount;
biodone(bp);
}
static int
saioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
{
struct cam_periph *periph;
struct sa_softc *softc;
A minor tweak to shut up gcc (on the Alpha) for two (false) warnings. How it can think that something that is initialized at declaration can be used while uninitialized is beyond me.
1999-07-03 16:29:32 +00:00
scsi_space_code spaceop;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
int didlockperiph = 0;
int s;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int unit;
int mode;
int density;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
int error = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
unit = SAUNIT(dev);
mode = SAMODE(dev);
density = SADENSITY(dev);
A minor tweak to shut up gcc (on the Alpha) for two (false) warnings. How it can think that something that is initialized at declaration can be used while uninitialized is beyond me.
1999-07-03 16:29:32 +00:00
error = 0; /* shut up gcc */
spaceop = 0; /* shut up gcc */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
periph = cam_extend_get(saperiphs, unit);
if (periph == NULL)
return (ENXIO);
softc = (struct sa_softc *)periph->softc;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* Check for control mode accesses. We allow MTIOCGET and
* MTIOCERRSTAT (but need to be the only one open in order
* to clear latched status), and MTSETBSIZE, MTSETDNSTY
* and MTCOMP (but need to be the only one accessing this
* device to run those).
*/
if (SA_IS_CTRL(dev)) {
switch (cmd) {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case MTIOCGETEOTMODEL:
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
case MTIOCGET:
break;
case MTIOCERRSTAT:
/*
* If the periph isn't already locked, lock it
* so our MTIOCERRSTAT can reset latched error stats.
*
* If the periph is already locked, skip it because
* we're just getting status and it'll be up to the
* other thread that has this device open to do
* an MTIOCERRSTAT that would clear latched status.
*/
s = splsoftcam();
if ((periph->flags & CAM_PERIPH_LOCKED) == 0) {
error = cam_periph_lock(periph, PRIBIO|PCATCH);
if (error != 0) {
splx(s);
return (error);
}
didlockperiph = 1;
}
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case MTIOCSETEOTMODEL:
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
case MTSETBSIZ:
case MTSETDNSTY:
case MTCOMP:
/*
* We need to acquire the peripheral here rather
* than at open time because we are sharing writable
* access to data structures.
*/
s = splsoftcam();
error = cam_periph_lock(periph, PRIBIO|PCATCH);
if (error != 0) {
splx(s);
return (error);
}
didlockperiph = 1;
break;
default:
return (EINVAL);
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* Find the device that the user is talking about
*/
switch (cmd) {
case MTIOCGET:
{
struct mtget *g = (struct mtget *)arg;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/*
* If this isn't the control mode device, actually go out
* and ask the drive again what it's set to.
*/
if (!SA_IS_CTRL(dev)) {
u_int8_t write_protect;
int comp_enabled, comp_supported;
error = sagetparams(periph, SA_PARAM_ALL,
&softc->media_blksize, &softc->media_density,
&softc->media_numblks, &softc->buffer_mode,
&write_protect, &softc->speed, &comp_supported,
&comp_enabled, &softc->comp_algorithm, NULL);
if (error)
break;
if (write_protect)
softc->flags |= SA_FLAG_TAPE_WP;
else
softc->flags &= ~SA_FLAG_TAPE_WP;
softc->flags &= ~(SA_FLAG_COMP_SUPP|
SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP);
if (comp_supported) {
if (softc->saved_comp_algorithm == 0)
softc->saved_comp_algorithm =
softc->comp_algorithm;
softc->flags |= SA_FLAG_COMP_SUPP;
if (comp_enabled)
softc->flags |= SA_FLAG_COMP_ENABLED;
} else
softc->flags |= SA_FLAG_COMP_UNSUPP;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bzero(g, sizeof(struct mtget));
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
g->mt_type = MT_ISAR;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (softc->flags & SA_FLAG_COMP_UNSUPP) {
g->mt_comp = MT_COMP_UNSUPP;
g->mt_comp0 = MT_COMP_UNSUPP;
g->mt_comp1 = MT_COMP_UNSUPP;
g->mt_comp2 = MT_COMP_UNSUPP;
g->mt_comp3 = MT_COMP_UNSUPP;
} else {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) {
g->mt_comp = MT_COMP_DISABLED;
} else {
g->mt_comp = softc->comp_algorithm;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
g->mt_comp0 = softc->comp_algorithm;
g->mt_comp1 = softc->comp_algorithm;
g->mt_comp2 = softc->comp_algorithm;
g->mt_comp3 = softc->comp_algorithm;
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
g->mt_density = softc->media_density;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
g->mt_density0 = softc->media_density;
g->mt_density1 = softc->media_density;
g->mt_density2 = softc->media_density;
g->mt_density3 = softc->media_density;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
g->mt_blksiz = softc->media_blksize;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
g->mt_blksiz0 = softc->media_blksize;
g->mt_blksiz1 = softc->media_blksize;
g->mt_blksiz2 = softc->media_blksize;
g->mt_blksiz3 = softc->media_blksize;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
g->mt_fileno = softc->fileno;
g->mt_blkno = softc->blkno;
g->mt_dsreg = (short) softc->dsreg;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
error = 0;
break;
}
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
case MTIOCERRSTAT:
{
struct scsi_tape_errors *sep =
&((union mterrstat *)arg)->scsi_errstat;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("saioctl: MTIOCERRSTAT\n"));
bzero(sep, sizeof(*sep));
sep->io_resid = softc->last_io_resid;
bcopy((caddr_t) &softc->last_io_sense, sep->io_sense,
sizeof (sep->io_sense));
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb,
sizeof (sep->io_cdb));
sep->ctl_resid = softc->last_ctl_resid;
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense,
sizeof (sep->ctl_sense));
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb,
sizeof (sep->ctl_cdb));
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (SA_IS_CTRL(dev) == 0 || didlockperiph)
bzero((caddr_t) &softc->errinfo,
sizeof (softc->errinfo));
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
error = 0;
break;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case MTIOCTOP:
{
struct mtop *mt;
int count;
mt = (struct mtop *)arg;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("saioctl: op=0x%x count=0x%x\n",
mt->mt_op, mt->mt_count));
count = mt->mt_count;
switch (mt->mt_op) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
case MTWEOF: /* write an end-of-file marker */
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/* XXXX: NEED TO CLEAR SA_TAPE_WRITTEN */
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
error = sawritefilemarks(periph, count, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
case MTWSS: /* write a setmark */
error = sawritefilemarks(periph, count, TRUE);
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case MTBSR: /* backward space record */
case MTFSR: /* forward space record */
case MTBSF: /* backward space file */
case MTFSF: /* forward space file */
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
case MTBSS: /* backward space setmark */
case MTFSS: /* forward space setmark */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case MTEOD: /* space to end of recorded medium */
{
int nmarks;
A minor tweak to shut up gcc (on the Alpha) for two (false) warnings. How it can think that something that is initialized at declaration can be used while uninitialized is beyond me.
1999-07-03 16:29:32 +00:00
spaceop = SS_FILEMARKS;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
nmarks = softc->filemarks;
error = sacheckeod(periph);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (error) {
xpt_print_path(periph->path);
printf("EOD check prior to spacing failed\n");
softc->flags |= SA_FLAG_EIO_PENDING;
break;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
nmarks -= softc->filemarks;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
switch(mt->mt_op) {
case MTBSR:
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
count = -count;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
/* FALLTHROUGH */
case MTFSR:
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
spaceop = SS_BLOCKS;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
break;
case MTBSF:
count = -count;
/* FALLTHROUGH */
case MTFSF:
break;
case MTBSS:
count = -count;
/* FALLTHROUGH */
case MTFSS:
spaceop = SS_SETMARKS;
break;
case MTEOD:
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
spaceop = SS_EOD;
count = 0;
nmarks = 0;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
break;
default:
error = EINVAL;
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
if (error)
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
nmarks = softc->filemarks;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
/*
* XXX: Why are we checking again?
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
error = sacheckeod(periph);
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
if (error)
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
nmarks -= softc->filemarks;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
error = saspace(periph, count - nmarks, spaceop);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* At this point, clear that we've written the tape
* and that we've written any filemarks. We really
* don't know what the applications wishes to do next-
* the sacheckeod's will make sure we terminated the
* tape correctly if we'd been writing, but the next
* action the user application takes will set again
* whether we need to write filemarks.
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->flags &=
~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->filemarks = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
}
case MTREW: /* rewind */
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
(void) sacheckeod(periph);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
error = sarewind(periph);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/* see above */
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
softc->flags &=
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->filemarks = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
case MTERASE: /* erase */
error = saerase(periph, count);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->flags &=
~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
case MTRETENS: /* re-tension tape */
error = saretension(periph);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->flags &=
~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
case MTOFFL: /* rewind and put the drive offline */
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
(void) sacheckeod(periph);
/* see above */
softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
softc->filemarks = 0;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
error = sarewind(periph);
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
/* clear the frozen flag anyway */
softc->flags &= ~SA_FLAG_TAPE_FROZEN;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
* Be sure to allow media removal before ejecting.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
saprevent(periph, PR_ALLOW);
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
if (error == 0) {
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
error = saloadunload(periph, FALSE);
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
if (error == 0) {
softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case MTNOP: /* no operation, sets status only */
case MTCACHE: /* enable controller cache */
case MTNOCACHE: /* disable controller cache */
error = 0;
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
case MTSETBSIZ: /* Set block size for device */
error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
0, 0, 0);
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if (error == 0) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->last_media_blksize =
softc->media_blksize;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
softc->media_blksize = count;
if (count) {
softc->flags |= SA_FLAG_FIXED;
if (powerof2(count)) {
softc->blk_shift =
ffs(count) - 1;
softc->blk_mask = count - 1;
} else {
softc->blk_mask = ~0;
softc->blk_shift = 0;
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Make the user's desire 'persistent'.
*/
softc->quirks &= ~SA_QUIRK_VARIABLE;
softc->quirks |= SA_QUIRK_FIXED;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
} else {
softc->flags &= ~SA_FLAG_FIXED;
if (softc->max_blk == 0) {
softc->max_blk = ~0;
}
softc->blk_shift = 0;
if (softc->blk_gran != 0) {
softc->blk_mask =
softc->blk_gran - 1;
} else {
softc->blk_mask = 0;
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Make the user's desire 'persistent'.
*/
softc->quirks |= SA_QUIRK_VARIABLE;
softc->quirks &= ~SA_QUIRK_FIXED;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
case MTSETDNSTY: /* Set density for device and mode */
if (count > UCHAR_MAX) {
error = EINVAL;
break;
} else {
error = sasetparams(periph, SA_PARAM_DENSITY,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
0, count, 0, 0);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
break;
case MTCOMP: /* enable compression */
/*
* Some devices don't support compression, and
* don't like it if you ask them for the
* compression page.
*/
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if ((softc->quirks & SA_QUIRK_NOCOMP) ||
(softc->flags & SA_FLAG_COMP_UNSUPP)) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
error = ENODEV;
break;
}
error = sasetparams(periph, SA_PARAM_COMPRESSION,
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
0, 0, count, SF_NO_PRINT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
default:
error = EINVAL;
}
break;
}
case MTIOCIEOT:
case MTIOCEEOT:
error = 0;
break;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
case MTIOCRDSPOS:
error = sardpos(periph, 0, (u_int32_t *) arg);
break;
case MTIOCRDHPOS:
error = sardpos(periph, 1, (u_int32_t *) arg);
break;
case MTIOCSLOCATE:
error = sasetpos(periph, 0, (u_int32_t *) arg);
break;
case MTIOCHLOCATE:
error = sasetpos(periph, 1, (u_int32_t *) arg);
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case MTIOCGETEOTMODEL:
error = 0;
if (softc->quirks & SA_QUIRK_1FM)
mode = 1;
else
mode = 2;
*((u_int32_t *) arg) = mode;
break;
case MTIOCSETEOTMODEL:
error = 0;
switch (*((u_int32_t *) arg)) {
case 1:
softc->quirks &= ~SA_QUIRK_2FM;
softc->quirks |= SA_QUIRK_1FM;
break;
case 2:
softc->quirks &= ~SA_QUIRK_1FM;
softc->quirks |= SA_QUIRK_2FM;
break;
default:
error = EINVAL;
break;
}
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
default:
error = cam_periph_ioctl(periph, cmd, arg, saerror);
break;
}
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (didlockperiph) {
cam_periph_unlock(periph);
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static void
sainit(void)
{
cam_status status;
struct cam_path *path;
/*
* Create our extend array for storing the devices we attach to.
*/
saperiphs = cam_extend_new();
if (saperiphs == NULL) {
printf("sa: Failed to alloc extend array!\n");
return;
}
/*
* Install a global async callback.
*/
status = xpt_create_path(&path, NULL, CAM_XPT_PATH_ID,
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status == CAM_REQ_CMP) {
/* Register the async callbacks of interrest */
struct ccb_setasync csa; /*
* This is an immediate CCB,
* so using the stack is OK
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
xpt_setup_ccb(&csa.ccb_h, path, 5);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_FOUND_DEVICE;
csa.callback = saasync;
csa.callback_arg = NULL;
xpt_action((union ccb *)&csa);
status = csa.ccb_h.status;
xpt_free_path(path);
}
if (status != CAM_REQ_CMP) {
printf("sa: Failed to attach master async callback "
"due to status 0x%x!\n", status);
}
}
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
static void
saoninvalidate(struct cam_periph *periph)
{
struct sa_softc *softc;
struct buf *q_bp;
struct ccb_setasync csa;
int s;
softc = (struct sa_softc *)periph->softc;
/*
* De-register any async callbacks.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path,
/* priority */ 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = 0;
csa.callback = saasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
softc->flags |= SA_FLAG_INVALID;
/*
* Although the oninvalidate() routines are always called at
* splsoftcam, we need to be at splbio() here to keep the buffer
* queue from being modified while we traverse it.
*/
s = splbio();
/*
* Return all queued I/O with ENXIO.
* XXX Handle any transactions queued to the card
* with XPT_ABORT_CCB.
*/
while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
bufq_remove(&softc->buf_queue, q_bp);
q_bp->b_resid = q_bp->b_bcount;
q_bp->b_error = ENXIO;
q_bp->b_flags |= B_ERROR;
biodone(q_bp);
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->queue_count = 0;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
splx(s);
xpt_print_path(periph->path);
printf("lost device\n");
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static void
sacleanup(struct cam_periph *periph)
{
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
struct sa_softc *softc;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
int i;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
softc = (struct sa_softc *)periph->softc;
devstat_remove_entry(&softc->device_stats);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
destroy_dev(softc->devs.ctl_dev);
destroy_dev(softc->devs.r_dev);
destroy_dev(softc->devs.nr_dev);
destroy_dev(softc->devs.er_dev);
for (i = 0; i < SA_NUM_MODES; i++) {
destroy_dev(softc->devs.mode_devs[i].r_dev);
destroy_dev(softc->devs.mode_devs[i].nr_dev);
destroy_dev(softc->devs.mode_devs[i].er_dev);
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
cam_extend_release(saperiphs, periph->unit_number);
xpt_print_path(periph->path);
printf("removing device entry\n");
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
free(softc, M_DEVBUF);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static void
saasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg)
{
struct cam_periph *periph;
periph = (struct cam_periph *)callback_arg;
switch (code) {
case AC_FOUND_DEVICE:
{
struct ccb_getdev *cgd;
cam_status status;
cgd = (struct ccb_getdev *)arg;
Do the minor changes needed because of change to ccb_getdev structure. JKH Trading Stamps applied. Reviewed by: gibbs@freebsd.org, ken@freebsd.org
2000-01-17 06:27:37 +00:00
if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
/*
* Allocate a peripheral instance for
* this device and start the probe
* process.
*/
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
status = cam_periph_alloc(saregister, saoninvalidate,
sacleanup, sastart,
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
"sa", CAM_PERIPH_BIO, cgd->ccb_h.path,
saasync, AC_FOUND_DEVICE, cgd);
if (status != CAM_REQ_CMP
&& status != CAM_REQ_INPROG)
printf("saasync: Unable to probe new device "
"due to status 0x%x\n", status);
break;
}
default:
Add a default async handler funstion to cam_periph.c to remove duplicated code in all initiator type peripheral drivers. scsi_target.c: Release ATIO structures that wind up in the 'unkown command queue' for consumption by our userland counterpart, back to the controller when the exception for that command is cleared.
1999-05-22 22:00:24 +00:00
cam_periph_async(periph, code, path, arg);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
break;
}
}
static cam_status
saregister(struct cam_periph *periph, void *arg)
{
struct sa_softc *softc;
struct ccb_setasync csa;
struct ccb_getdev *cgd;
caddr_t match;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
int i;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
cgd = (struct ccb_getdev *)arg;
if (periph == NULL) {
printf("saregister: periph was NULL!!\n");
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (CAM_REQ_CMP_ERR);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
if (cgd == NULL) {
printf("saregister: no getdev CCB, can't register device\n");
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (CAM_REQ_CMP_ERR);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
softc = (struct sa_softc *)malloc(sizeof (*softc), M_DEVBUF, M_NOWAIT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (softc == NULL) {
printf("saregister: Unable to probe new device. "
"Unable to allocate softc\n");
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (CAM_REQ_CMP_ERR);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
bzero(softc, sizeof(*softc));
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->state = SA_STATE_NORMAL;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->fileno = (daddr_t) -1;
softc->blkno = (daddr_t) -1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bufq_init(&softc->buf_queue);
periph->softc = softc;
cam_extend_set(saperiphs, periph->unit_number, periph);
/*
* See if this device has any quirks.
*/
match = cam_quirkmatch((caddr_t)&cgd->inq_data,
(caddr_t)sa_quirk_table,
sizeof(sa_quirk_table)/sizeof(*sa_quirk_table),
sizeof(*sa_quirk_table), scsi_inquiry_match);
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
if (match != NULL) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->quirks = ((struct sa_quirk_entry *)match)->quirks;
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
softc->last_media_blksize =
((struct sa_quirk_entry *)match)->prefblk;
#ifdef CAMDEBUG
xpt_print_path(periph->path);
quiet the alpha compiler
1999-02-05 08:49:34 +00:00
printf("found quirk entry %d\n", (int)
(((struct sa_quirk_entry *) match) - sa_quirk_table));
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
#endif
} else
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->quirks = SA_QUIRK_NONE;
/*
* The SA driver supports a blocksize, but we don't know the
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* blocksize until we media is inserted. So, set a flag to
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
* indicate that the blocksize is unavailable right now.
*/
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0,
Do the minor changes needed because of change to ccb_getdev structure. JKH Trading Stamps applied. Reviewed by: gibbs@freebsd.org, ken@freebsd.org
2000-01-17 06:27:37 +00:00
DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) |
DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV,
periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
0660, "r%s%d.ctl", periph->periph_name, periph->unit_number);
softc->devs.r_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
0660, "r%s%d", periph->periph_name, periph->unit_number);
softc->devs.nr_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR,
0660, "nr%s%d", periph->periph_name, periph->unit_number);
softc->devs.er_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR,
0660, "er%s%d", periph->periph_name, periph->unit_number);
for (i = 0; i < SA_NUM_MODES; i++) {
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw,
SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R),
UID_ROOT, GID_OPERATOR, 0660, "r%s%d.%d",
periph->periph_name, periph->unit_number, i);
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw,
SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR),
UID_ROOT, GID_OPERATOR, 0660, "nr%s%d.%d",
periph->periph_name, periph->unit_number, i);
Fix a couple of boo-boos in the last delta.
1999-11-17 17:11:21 +00:00
softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER),
UID_ROOT, GID_OPERATOR, 0660, "er%s%d.%d",
periph->periph_name, periph->unit_number, i);
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* Add an async callback so that we get
* notified if this device goes away.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_LOST_DEVICE;
csa.callback = saasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
xpt_announce_periph(periph, NULL);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (CAM_REQ_CMP);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static void
sastart(struct cam_periph *periph, union ccb *start_ccb)
{
struct sa_softc *softc;
softc = (struct sa_softc *)periph->softc;
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastart"));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
switch (softc->state) {
case SA_STATE_NORMAL:
{
/* Pull a buffer from the queue and get going on it */
struct buf *bp;
int s;
/*
* See if there is a buf with work for us to do..
*/
s = splbio();
bp = bufq_first(&softc->buf_queue);
if (periph->immediate_priority <= periph->pinfo.priority) {
CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
("queuing for immediate ccb\n"));
start_ccb->ccb_h.ccb_type = SA_CCB_WAITING;
SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
periph_links.sle);
periph->immediate_priority = CAM_PRIORITY_NONE;
splx(s);
wakeup(&periph->ccb_list);
} else if (bp == NULL) {
splx(s);
xpt_release_ccb(start_ccb);
} else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
struct buf *done_bp;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->queue_count--;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bufq_remove(&softc->buf_queue, bp);
bp->b_resid = bp->b_bcount;
bp->b_flags |= B_ERROR;
if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
if ((bp->b_flags & B_READ) == 0)
bp->b_error = ENOSPC;
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
else
bp->b_error = EIO;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
bp->b_error = EIO;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
bp->b_error = EIO;
}
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
done_bp = bp;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bp = bufq_first(&softc->buf_queue);
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
/*
* Only if we have no other buffers queued up
* do we clear the pending error flag.
*/
if (bp == NULL)
softc->flags &= ~SA_FLAG_ERR_PENDING;
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
"%d more buffers queued up\n",
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
(softc->flags & SA_FLAG_ERR_PENDING),
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
(bp != NULL)? "not " : " ", softc->queue_count));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
splx(s);
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
xpt_release_ccb(start_ccb);
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
biodone(done_bp);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else {
u_int32_t length;
bufq_remove(&softc->buf_queue, bp);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->queue_count--;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((softc->flags & SA_FLAG_FIXED) != 0) {
if (softc->blk_shift != 0) {
length =
bp->b_bcount >> softc->blk_shift;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
} else if (softc->media_blksize != 0) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
length =
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
bp->b_bcount / softc->media_blksize;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
} else {
bp->b_error = EIO;
xpt_print_path(periph->path);
printf("zero blocksize for "
"FIXED length writes?\n");
splx(s);
biodone(bp);
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
("Fixed Record Count is %d\n", length));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else {
length = bp->b_bcount;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
("Variable Record Count is %d\n", length));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
devstat_start_transaction(&softc->device_stats);
/*
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
* Some people have theorized that we should
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
* suppress illegal length indication if we are
* running in variable block mode so that we don't
* have to request sense every time our requested
* block size is larger than the written block.
* The residual information from the ccb allows
* us to identify this situation anyway. The only
* problem with this is that we will not get
* information about blocks that are larger than
* our read buffer unless we set the block size
* in the mode page to something other than 0.
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
*
* I believe that this is a non-issue. If user apps
* don't adjust their read size to match our record
* size, that's just life. Anyway, the typical usage
* would be to issue, e.g., 64KB reads and occasionally
* have to do deal with 512 byte or 1KB intermediate
* records.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = (bp->b_flags & B_READ)?
MTIO_DSREG_RD : MTIO_DSREG_WR;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
scsi_sa_read_write(&start_ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, (bp->b_flags & B_READ) != 0,
FALSE, (softc->flags & SA_FLAG_FIXED) != 0,
length, bp->b_data, bp->b_bcount, SSD_FULL_SIZE,
120 * 60 * 1000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
start_ccb->ccb_h.ccb_type = SA_CCB_BUFFER_IO;
start_ccb->ccb_h.ccb_bp = bp;
bp = bufq_first(&softc->buf_queue);
splx(s);
xpt_action(start_ccb);
}
if (bp != NULL) {
/* Have more work to do, so ensure we stay scheduled */
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
xpt_schedule(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
break;
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case SA_STATE_ABNORMAL:
default:
panic("state 0x%x in sastart", softc->state);
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
}
static void
sadone(struct cam_periph *periph, union ccb *done_ccb)
{
struct sa_softc *softc;
struct ccb_scsiio *csio;
softc = (struct sa_softc *)periph->softc;
csio = &done_ccb->csio;
switch (csio->ccb_h.ccb_type) {
case SA_CCB_BUFFER_IO:
{
struct buf *bp;
int error;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
error = 0;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
/*
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
* A retry was scheduled, so just return.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
return;
}
}
if (error == EIO) {
int s;
struct buf *q_bp;
/*
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
* Catastrophic error. Mark the tape as frozen
* (we no longer know tape position).
*
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
* Return all queued I/O with EIO, and unfreeze
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
* our queue so that future transactions that
* attempt to fix this problem can get to the
* device.
*
*/
s = splbio();
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
softc->flags |= SA_FLAG_TAPE_FROZEN;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) {
bufq_remove(&softc->buf_queue, q_bp);
q_bp->b_resid = q_bp->b_bcount;
q_bp->b_error = EIO;
q_bp->b_flags |= B_ERROR;
biodone(q_bp);
}
splx(s);
}
if (error != 0) {
bp->b_resid = bp->b_bcount;
bp->b_error = error;
bp->b_flags |= B_ERROR;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* In the error case, position is updated in saerror.
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else {
bp->b_resid = csio->resid;
bp->b_error = 0;
if (csio->resid != 0) {
bp->b_flags |= B_ERROR;
}
if ((bp->b_flags & B_READ) == 0) {
softc->flags |= SA_FLAG_TAPE_WRITTEN;
softc->filemarks = 0;
}
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (softc->blkno != (daddr_t) -1) {
if ((softc->flags & SA_FLAG_FIXED) != 0) {
u_int32_t l;
if (softc->blk_shift != 0) {
l = bp->b_bcount >>
softc->blk_shift;
} else {
l = bp->b_bcount /
softc->media_blksize;
}
softc->blkno += (daddr_t) l;
} else {
softc->blkno++;
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* If we had an error (immediate or pending),
* release the device queue now.
*/
if (error || (softc->flags & SA_FLAG_ERR_PENDING))
cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
#ifdef CAMDEBUG
if (error || bp->b_resid) {
CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
("error %d resid %ld count %ld\n", error,
bp->b_resid, bp->b_bcount));
}
#endif
Introduce the disk mini-layer and devstat_end_transaction_buf() in cam/scsi. Somewhat reviewed by: ken
1999-10-01 09:34:10 +00:00
devstat_end_transaction_buf(&softc->device_stats, bp);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
biodone(bp);
break;
}
case SA_CCB_WAITING:
{
/* Caller will release the CCB */
wakeup(&done_ccb->ccb_h.cbfcnp);
return;
}
}
xpt_release_ccb(done_ccb);
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Mount the tape (make sure it's ready for I/O).
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
static int
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
samount(struct cam_periph *periph, int oflags, dev_t dev)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
{
struct sa_softc *softc;
union ccb *ccb;
int error;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* oflags can be checked for 'kind' of open (read-only check) - later
* dev can be checked for a control-mode or compression open - later
*/
UNUSED_PARAMETER(oflags);
UNUSED_PARAMETER(dev);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
* This should determine if something has happend since the last
* open/mount that would invalidate the mount. We do *not* want
* to retry this command- we just want the status. But we only
* do this if we're mounted already- if we're not mounted,
* we don't care about the unit read state and can instead use
* this opportunity to attempt to reserve the tape unit.
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
*/
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
ccb = cam_periph_getccb(periph, 1);
scsi_test_unit_ready(&ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
&softc->device_stats);
QFRLS(ccb);
if (error == ENXIO) {
softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
scsi_test_unit_ready(&ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
&softc->device_stats);
QFRLS(ccb);
} else if (error) {
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
/*
* We don't need to freeze the tape because we
* will now attempt to rewind/load it.
*/
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
if (CAM_DEBUGGED(ccb->ccb_h.path, CAM_DEBUG_INFO)) {
xpt_print_path(ccb->ccb_h.path);
printf("error %d on TUR in samount\n", error);
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
}
} else {
error = sareservereleaseunit(periph, TRUE);
if (error) {
return (error);
}
ccb = cam_periph_getccb(periph, 1);
Add back in a prefatory TUR when the tape is *not* mounted. This seems to help with some older tape drives.
1999-12-04 01:13:59 +00:00
scsi_test_unit_ready(&ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
&softc->device_stats);
QFRLS(ccb);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
struct scsi_read_block_limits_data *rblim = NULL;
int comp_enabled, comp_supported;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
u_int8_t write_protect, guessing = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* Clear out old state.
*/
softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED|
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->filemarks = 0;
/*
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
* *Very* first off, make sure we're loaded to BOT.
*/
scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
&softc->device_stats);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
QFRLS(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
* In case this doesn't work, do a REWIND instead
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
*/
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
if (error) {
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
&softc->device_stats);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
QFRLS(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
}
if (error) {
xpt_release_ccb(ccb);
goto exit;
}
/*
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
* Do a dummy test read to force access to the
* media so that the drive will really know what's
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
* there. We actually don't really care what the
* blocksize on tape is and don't expect to really
* read a full record.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
rblim = (struct scsi_read_block_limits_data *)
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
malloc(8192, M_TEMP, M_WAITOK);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (rblim == NULL) {
xpt_print_path(ccb->ccb_h.path);
printf("no memory for test read\n");
xpt_release_ccb(ccb);
error = ENOMEM;
goto exit;
}
Add a quirk type (and one for ARCHIVE Python's) that disables the dummy read at sa_mount that attempts to latch up density. This breaks on at least one drive and sends it into the weeds. Approved: jkh
2000-02-03 18:29:25 +00:00
if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
scsi_sa_read_write(&ccb->csio, 0, sadone,
MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
(void *) rblim, 8192, SSD_FULL_SIZE,
120 * 60 * 1000);
(void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
&softc->device_stats);
QFRLS(ccb);
scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
error = cam_periph_runccb(ccb, saerror, 0,
SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA,
&softc->device_stats);
QFRLS(ccb);
if (error) {
xpt_print_path(ccb->ccb_h.path);
printf("unable to rewind after test read\n");
xpt_release_ccb(ccb);
goto exit;
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/*
* Next off, determine block limits.
*/
scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
rblim, SSD_FULL_SIZE, 5000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
error = cam_periph_runccb(ccb, saerror, 0,
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
SF_NO_PRINT | SF_RETRY_UA | SF_RETRY_SELTO,
&softc->device_stats);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if (error != 0) {
/*
* If it's less than SCSI-2, READ BLOCK LIMITS is not
* a MANDATORY command. Anyway- it doesn't matter-
* we can proceed anyway.
*/
softc->blk_gran = 0;
softc->max_blk = ~0;
softc->min_blk = 0;
} else {
if (softc->scsi_rev >= SCSI_REV_3) {
softc->blk_gran = RBL_GRAN(rblim);
} else {
softc->blk_gran = 0;
}
/*
* We take max_blk == min_blk to mean a default to
* fixed mode- but note that whatever we get out of
* sagetparams below will actually determine whether
* we are actually *in* fixed mode.
*/
softc->max_blk = scsi_3btoul(rblim->maximum);
softc->min_blk = scsi_2btoul(rblim->minimum);
}
/*
* Next, perform a mode sense to determine
* current density, blocksize, compression etc.
*/
error = sagetparams(periph, SA_PARAM_ALL,
&softc->media_blksize,
&softc->media_density,
&softc->media_numblks,
&softc->buffer_mode, &write_protect,
&softc->speed, &comp_supported,
&comp_enabled, &softc->comp_algorithm,
NULL);
if (error != 0) {
/*
* We could work a little harder here. We could
* adjust our attempts to get information. It
* might be an ancient tape drive. If someone
* nudges us, we'll do that.
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
goto exit;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* If no quirk has determined that this is a device that is
* preferred to be in fixed or variable mode, now is the time
* to find out.
*/
if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
guessing = 1;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* This could be expensive to find out. Luckily we
* only need to do this once. If we start out in
* 'default' mode, try and set ourselves to one
* of the densities that would determine a wad
* of other stuff. Go from highest to lowest.
*/
if (softc->media_density == SCSI_DEFAULT_DENSITY) {
int i;
static u_int8_t ctry[] = {
SCSI_DENSITY_HALFINCH_PE,
SCSI_DENSITY_HALFINCH_6250C,
SCSI_DENSITY_HALFINCH_6250,
SCSI_DENSITY_HALFINCH_1600,
SCSI_DENSITY_HALFINCH_800,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SCSI_DENSITY_QIC_4GB,
SCSI_DENSITY_QIC_2GB,
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
SCSI_DENSITY_QIC_525_320,
SCSI_DENSITY_QIC_150,
SCSI_DENSITY_QIC_120,
SCSI_DENSITY_QIC_24,
SCSI_DENSITY_QIC_11_9TRK,
SCSI_DENSITY_QIC_11_4TRK,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
SCSI_DENSITY_QIC_1320,
SCSI_DENSITY_QIC_3080,
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
0
};
for (i = 0; ctry[i]; i++) {
error = sasetparams(periph,
SA_PARAM_DENSITY, 0, ctry[i],
0, SF_NO_PRINT);
if (error == 0) {
softc->media_density = ctry[i];
break;
}
}
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
switch (softc->media_density) {
case SCSI_DENSITY_QIC_11_4TRK:
case SCSI_DENSITY_QIC_11_9TRK:
case SCSI_DENSITY_QIC_24:
case SCSI_DENSITY_QIC_120:
case SCSI_DENSITY_QIC_150:
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
case SCSI_DENSITY_QIC_1320:
case SCSI_DENSITY_QIC_3080:
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->quirks &= ~SA_QUIRK_2FM;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->last_media_blksize = 512;
break;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case SCSI_DENSITY_QIC_4GB:
case SCSI_DENSITY_QIC_2GB:
case SCSI_DENSITY_QIC_525_320:
softc->quirks &= ~SA_QUIRK_2FM;
softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
softc->last_media_blksize = 1024;
break;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
default:
softc->last_media_blksize =
softc->media_blksize;
softc->quirks |= SA_QUIRK_VARIABLE;
break;
}
}
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* If no quirk has determined that this is a device that needs
* to have 2 Filemarks at EOD, now is the time to find out.
*/
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
if ((softc->quirks & SA_QUIRK_2FM) == 0) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
switch (softc->media_density) {
case SCSI_DENSITY_HALFINCH_800:
case SCSI_DENSITY_HALFINCH_1600:
case SCSI_DENSITY_HALFINCH_6250:
case SCSI_DENSITY_HALFINCH_6250C:
case SCSI_DENSITY_HALFINCH_PE:
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->quirks &= ~SA_QUIRK_1FM;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->quirks |= SA_QUIRK_2FM;
break;
default:
break;
}
}
/*
* Now validate that some info we got makes sense.
*/
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if ((softc->max_blk < softc->media_blksize) ||
(softc->min_blk > softc->media_blksize &&
softc->media_blksize)) {
xpt_print_path(ccb->ccb_h.path);
printf("BLOCK LIMITS (%d..%d) could not match current "
"block settings (%d)- adjusting\n", softc->min_blk,
softc->max_blk, softc->media_blksize);
softc->max_blk = softc->min_blk =
softc->media_blksize;
}
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
* Now put ourselves into the right frame of mind based
* upon quirks...
*/
tryagain:
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
/*
* If we want to be in FIXED mode and our current blocksize
* is not equal to our last blocksize (if nonzero), try and
* set ourselves to this last blocksize (as the 'preferred'
* block size). The initial quirkmatch at registry sets the
* initial 'last' blocksize. If, for whatever reason, this
* 'last' blocksize is zero, set the blocksize to 512,
* or min_blk if that's larger.
*/
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if ((softc->quirks & SA_QUIRK_FIXED) &&
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
(softc->media_blksize != softc->last_media_blksize)) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->media_blksize = softc->last_media_blksize;
if (softc->media_blksize == 0) {
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
softc->media_blksize = 512;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (softc->media_blksize < softc->min_blk) {
softc->media_blksize = softc->min_blk;
}
}
error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
softc->media_blksize, 0, 0, SF_NO_PRINT);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (error) {
xpt_print_path(ccb->ccb_h.path);
printf("unable to set fixed blocksize to %d\n",
softc->media_blksize);
goto exit;
}
}
if ((softc->quirks & SA_QUIRK_VARIABLE) &&
(softc->media_blksize != 0)) {
softc->last_media_blksize = softc->media_blksize;
softc->media_blksize = 0;
error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
0, 0, 0, SF_NO_PRINT);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (error) {
/*
* If this fails and we were guessing, just
* assume that we got it wrong and go try
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
* fixed block mode. Don't even check against
* density code at this point.
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
*/
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
if (guessing) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->quirks &= ~SA_QUIRK_VARIABLE;
softc->quirks |= SA_QUIRK_FIXED;
if (softc->last_media_blksize == 0)
softc->last_media_blksize = 512;
goto tryagain;
}
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
xpt_print_path(ccb->ccb_h.path);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
printf("unable to set variable blocksize\n");
goto exit;
}
}
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
/*
* Now that we have the current block size,
* set up some parameters for sastart's usage.
*/
if (softc->media_blksize) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->flags |= SA_FLAG_FIXED;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if (powerof2(softc->media_blksize)) {
softc->blk_shift =
ffs(softc->media_blksize) - 1;
softc->blk_mask = softc->media_blksize - 1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else {
softc->blk_mask = ~0;
softc->blk_shift = 0;
}
} else {
/*
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
* The SCSI-3 spec allows 0 to mean "unspecified".
* The SCSI-1 spec allows 0 to mean 'infinite'.
*
* Either works here.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
if (softc->max_blk == 0) {
softc->max_blk = ~0;
}
softc->blk_shift = 0;
if (softc->blk_gran != 0) {
softc->blk_mask = softc->blk_gran - 1;
} else {
softc->blk_mask = 0;
}
}
if (write_protect)
softc->flags |= SA_FLAG_TAPE_WP;
if (comp_supported) {
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (softc->saved_comp_algorithm == 0)
softc->saved_comp_algorithm =
softc->comp_algorithm;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->flags |= SA_FLAG_COMP_SUPP;
if (comp_enabled)
softc->flags |= SA_FLAG_COMP_ENABLED;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else
softc->flags |= SA_FLAG_COMP_UNSUPP;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) {
error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
0, 0, SF_NO_PRINT);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
if (error == 0)
softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
if (error == 0) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
softc->flags |= SA_FLAG_TAPE_MOUNTED;
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
exit:
if (rblim != NULL)
free(rblim, M_TEMP);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (error != 0) {
softc->dsreg = MTIO_DSREG_NIL;
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
} else {
softc->fileno = softc->blkno = 0;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
+Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then catch a T4000s) + Set *some* kind of error at EOM if we're in fixed mode and have pending errs. Do not clear the ERR_PENDING bit if more buffers are queued. + Release the start_ccb in this case also, else we hang forever on rewinding. + Any kind of error for load to BOT in samount should then cause an attempt to use REWIND to come back to BOT. Do the initial load command quietly. + In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
}
Another 1FM@EOD quirk (from mike@sentex.net for a Seagate STT20000), and add a config option that allows one to default to 1FM@EOD for tapes otherwise unquirked or unknown as to which to prefer. Note that tcopy will be broken for these tapes until tcopy is fixed.
1999-10-02 20:17:16 +00:00
#ifdef SA_1FM_AT_EOD
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if ((softc->quirks & SA_QUIRK_2FM) == 0)
softc->quirks |= SA_QUIRK_1FM;
Another 1FM@EOD quirk (from mike@sentex.net for a Seagate STT20000), and add a config option that allows one to default to 1FM@EOD for tapes otherwise unquirked or unknown as to which to prefer. Note that tcopy will be broken for these tapes until tcopy is fixed.
1999-10-02 20:17:16 +00:00
#else
if ((softc->quirks & SA_QUIRK_1FM) == 0)
softc->quirks |= SA_QUIRK_2FM;
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
#endif
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else
xpt_release_ccb(ccb);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/*
* If we return an error, we're not mounted any more,
* so release any device reservation.
*/
if (error != 0) {
(void) sareservereleaseunit(periph, FALSE);
}
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static int
sacheckeod(struct cam_periph *periph)
{
int error;
int markswanted;
struct sa_softc *softc;
softc = (struct sa_softc *)periph->softc;
markswanted = 0;
if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
markswanted++;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (softc->quirks & SA_QUIRK_2FM)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
markswanted++;
}
if (softc->filemarks < markswanted) {
markswanted -= softc->filemarks;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
error = sawritefilemarks(periph, markswanted, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else {
error = 0;
}
return (error);
}
static int
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
{
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
static const char *toobig =
"%d-byte tape record bigger than suplied buffer\n";
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
struct cam_periph *periph;
struct sa_softc *softc;
struct ccb_scsiio *csio;
struct scsi_sense_data *sense;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
u_int32_t resid = 0;
int32_t info = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int error_code, sense_key, asc, ascq;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
int error, defer_action;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct sa_softc *)periph->softc;
csio = &ccb->csio;
sense = &csio->sense_data;
scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq);
error = 0;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Calculate/latch up, any residuals...
*/
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
info = (int32_t) scsi_4btoul(sense->info);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
resid = info;
if ((softc->flags & SA_FLAG_FIXED) != 0)
resid *= softc->media_blksize;
} else {
resid = csio->dxfer_len;
info = resid;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if ((softc->flags & SA_FLAG_FIXED) != 0) {
if (softc->media_blksize)
info /= softc->media_blksize;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
if (csio->ccb_h.ccb_type == SA_CCB_BUFFER_IO) {
bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
sizeof (struct scsi_sense_data));
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
(int) csio->cdb_len);
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
softc->last_io_resid = resid;
} else {
bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
sizeof (struct scsi_sense_data));
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
(int) csio->cdb_len);
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
softc->last_ctl_resid = resid;
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Key 0x%x ASC/ASCQ
0x%x 0x%x flags 0x%x resid %d dxfer_len %d\n", sense_key,
asc, ascq, sense->flags & ~SSD_KEY_RESERVED, resid,
csio->dxfer_len));
} else {
CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Cam Status 0x%x\n",
csio->ccb_h.status & CAM_STATUS_MASK));
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* If it's neither a SCSI Check Condition Error nor a non-read/write
* command, let the common code deal with it the error setting.
*/
if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_SCSI_STATUS_ERROR ||
(csio->ccb_h.ccb_type == SA_CCB_WAITING)) {
return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Calculate whether we'll defer action.
*/
if (resid > 0 && resid < csio->dxfer_len &&
(softc->flags & SA_FLAG_FIXED) != 0) {
defer_action = TRUE;
} else {
defer_action = FALSE;
}
/*
* Handle filemark, end of tape, mismatched record sizes....
* From this point out, we're only handling read/write cases.
* Handle writes && reads differently.
*/
if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
if (sense->flags & SSD_FILEMARK) {
xpt_print_path(csio->ccb_h.path);
printf("filemark detected on write?\n");
if (softc->fileno != (daddr_t) -1) {
softc->fileno++;
softc->blkno = 0;
}
}
if (sense->flags & SSD_EOM) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
csio->resid = resid;
if (defer_action) {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
error = -1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->flags |= SA_FLAG_EOM_PENDING;
} else {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
error = ENOSPC;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
} else {
if (sense_key == SSD_KEY_BLANK_CHECK) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
csio->resid = resid;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (defer_action) {
error = -1;
softc->flags |= SA_FLAG_EOM_PENDING;
} else {
error = EIO;
}
}
if (sense->flags & SSD_FILEMARK) {
csio->resid = resid;
if (defer_action) {
error = -1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->flags |= SA_FLAG_EOF_PENDING;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
}
/*
* Unconditionally, if we detected a filemark on a read,
* mark that we've run moved a file ahead.
*/
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (softc->fileno != (daddr_t) -1) {
softc->fileno++;
softc->blkno = 0;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
}
/*
* Incorrect Length usually applies to read, but can apply to writes.
*/
if (error == 0 && (sense->flags & SSD_ILI)) {
if (info < 0) {
xpt_print_path(csio->ccb_h.path);
printf(toobig, csio->dxfer_len - info);
csio->resid = csio->dxfer_len;
error = EIO;
} else {
csio->resid = resid;
if ((softc->flags & SA_FLAG_FIXED) != 0) {
if (defer_action)
softc->flags |= SA_FLAG_EIO_PENDING;
else
error = EIO;
}
/*
* Bump the block number if we hadn't seen a filemark.
* Do this independent of errors (we've moved anyway).
*/
if ((sense->flags & SSD_FILEMARK) == 0) {
if (softc->blkno != (daddr_t) -1) {
softc->blkno++;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
}
}
}
if (error == 0)
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (error == -1)
return (0);
else
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static int
sagetparams(struct cam_periph *periph, sa_params params_to_get,
u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
sa_comp_t *tcs)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
{
union ccb *ccb;
void *mode_buffer;
struct scsi_mode_header_6 *mode_hdr;
struct scsi_mode_blk_desc *mode_blk;
int mode_buffer_len;
struct sa_softc *softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
u_int8_t cpage;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int error;
cam_status status;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
cpage = SA_DATA_COMPRESSION_PAGE;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
retry:
mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
if (params_to_get & SA_PARAM_COMPRESSION) {
if (softc->quirks & SA_QUIRK_NOCOMP) {
*comp_supported = FALSE;
params_to_get &= ~SA_PARAM_COMPRESSION;
} else
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
mode_buffer_len += sizeof (sa_comp_t);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
bzero(mode_buffer, mode_buffer_len);
mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* it is safe to retry this */
scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
SSD_FULL_SIZE, 5000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
&softc->device_stats);
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
status = ccb->ccb_h.status & CAM_STATUS_MASK;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* Hmm. Let's see if we can try another page...
* If we've already done that, give up on compression
* for this device and remember this for the future
* and attempt the request without asking for compression
* info.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (cpage == SA_DATA_COMPRESSION_PAGE) {
cpage = SA_DEVICE_CONFIGURATION_PAGE;
goto retry;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->quirks |= SA_QUIRK_NOCOMP;
free(mode_buffer, M_TEMP);
goto retry;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
} else if (status == CAM_SCSI_STATUS_ERROR) {
/* Tell the user about the fatal error. */
scsi_sense_print(&ccb->csio);
goto sagetparamsexit;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* If the user only wants the compression information, and
* the device doesn't send back the block descriptor, it's
* no big deal. If the user wants more than just
* compression, though, and the device doesn't pass back the
* block descriptor, we need to send another mode sense to
* get the block descriptor.
*/
if ((mode_hdr->blk_desc_len == 0) &&
(params_to_get & SA_PARAM_COMPRESSION) &&
(params_to_get & ~(SA_PARAM_COMPRESSION))) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* Decrease the mode buffer length by the size of
* the compression page, to make sure the data
* there doesn't get overwritten.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
mode_buffer_len -= sizeof (sa_comp_t);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Now move the compression page that we presumably
* got back down the memory chunk a little bit so
* it doesn't get spammed.
*/
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Now, we issue another mode sense and just ask
* for the block descriptor, etc.
*/
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
&softc->device_stats);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (error != 0)
goto sagetparamsexit;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (params_to_get & SA_PARAM_BLOCKSIZE)
*blocksize = scsi_3btoul(mode_blk->blklen);
if (params_to_get & SA_PARAM_NUMBLOCKS)
*numblocks = scsi_3btoul(mode_blk->nblocks);
if (params_to_get & SA_PARAM_BUFF_MODE)
*buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
if (params_to_get & SA_PARAM_DENSITY)
*density = mode_blk->density;
if (params_to_get & SA_PARAM_WP)
*write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
if (params_to_get & SA_PARAM_SPEED)
*speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
if (params_to_get & SA_PARAM_COMPRESSION) {
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (cpage == SA_DATA_COMPRESSION_PAGE) {
struct scsi_data_compression_page *cp = &ntcs->dcomp;
*comp_supported =
(cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
*comp_enabled =
(cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
*comp_algorithm = scsi_4btoul(cp->comp_algorithm);
} else {
struct scsi_dev_conf_page *cp = &ntcs->dconf;
/*
* We don't really know whether this device supports
* Data Compression if the the algorithm field is
* zero. Just say we do.
*/
*comp_supported = TRUE;
*comp_enabled =
(cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
*comp_algorithm = cp->sel_comp_alg;
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (tcs != NULL)
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
bcopy(ntcs, tcs, sizeof (sa_comp_t));
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
}
if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
int idx;
char *xyz = mode_buffer;
xpt_print_path(periph->path);
printf("Mode Sense Data=");
for (idx = 0; idx < mode_buffer_len; idx++)
printf(" 0x%02x", xyz[idx] & 0xff);
printf("\n");
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
sagetparamsexit:
xpt_release_ccb(ccb);
free(mode_buffer, M_TEMP);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
/*
* The purpose of this function is to set one of four different parameters
* for a tape drive:
* - blocksize
* - density
* - compression / compression algorithm
* - buffering mode
*
* The assumption is that this will be called from saioctl(), and therefore
* from a process context. Thus the waiting malloc calls below. If that
* assumption ever changes, the malloc calls should be changed to be
* NOWAIT mallocs.
*
* Any or all of the four parameters may be set when this function is
* called. It should handle setting more than one parameter at once.
*/
static int
sasetparams(struct cam_periph *periph, sa_params params_to_set,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
u_int32_t blocksize, u_int8_t density, u_int32_t calg,
Clean up and fix quirk table (was missing necessary wildcards) and add a couple from the old driver. Change format of quirk table to have a preferred block size for devices that need to be QUIRK_FIXED- this is loaded into the last_media_blocksize tag at saregister time and will be used in the first samount case. Change sasetparams to take a sense_flags argument so that probe time testing can be quieter (e.g. with SF_NO_PRINT). Fix a couple of silly bugs in the fixed/variable determination in samount- one was where there was a check against 'guessing' AND the density code being default density- *SMACK* - you're only guessing if you find the media code to be *other* than default density. Second bug was a test against current blocksize being zero- should be a test against whether current blocksize is not equal to the last blocksize if you had wanted to be fixed (suppose you came up in fixed, but not the preferred size?). And if you don't know what the fixed size should be, select 512 as the starting point, not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
u_int32_t sense_flags)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
{
struct sa_softc *softc;
u_int32_t current_blocksize;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
u_int32_t current_calg;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
u_int8_t current_density;
u_int8_t current_speed;
int comp_enabled, comp_supported;
void *mode_buffer;
int mode_buffer_len;
struct scsi_mode_header_6 *mode_hdr;
struct scsi_mode_blk_desc *mode_blk;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
sa_comp_t *ccomp, *cpage;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int buff_mode;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
union ccb *ccb = NULL;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccomp = malloc(sizeof (sa_comp_t), M_TEMP, M_WAITOK);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* Since it doesn't make sense to set the number of blocks, or
* write protection, we won't try to get the current value. We
* always want to get the blocksize, so we can set it back to the
* proper value.
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
error = sagetparams(periph,
params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
&current_blocksize, &current_density, NULL, &buff_mode, NULL,
&current_speed, &comp_supported, &comp_enabled,
&current_calg, ccomp);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (error != 0) {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
free(ccomp, M_TEMP);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
if (params_to_set & SA_PARAM_COMPRESSION)
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
mode_buffer_len += sizeof (sa_comp_t);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
bzero(mode_buffer, mode_buffer_len);
mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
ccb = cam_periph_getccb(periph, 1);
retry:
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (params_to_set & SA_PARAM_COMPRESSION) {
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (mode_blk) {
cpage = (sa_comp_t *)&mode_blk[1];
} else {
cpage = (sa_comp_t *)&mode_hdr[1];
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
bcopy(ccomp, cpage, sizeof (sa_comp_t));
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
cpage->hdr.pagecode &= ~0x80;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
} else
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cpage = NULL;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* If the caller wants us to set the blocksize, use the one they
* pass in. Otherwise, use the blocksize we got back from the
* mode select above.
*/
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (mode_blk) {
if (params_to_set & SA_PARAM_BLOCKSIZE)
scsi_ulto3b(blocksize, mode_blk->blklen);
else
scsi_ulto3b(current_blocksize, mode_blk->blklen);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/*
* Set density if requested, else preserve old density.
* SCSI_SAME_DENSITY only applies to SCSI-2 or better
* devices, else density we've latched up in our softc.
*/
if (params_to_set & SA_PARAM_DENSITY) {
mode_blk->density = density;
} else if (softc->scsi_rev > SCSI_REV_CCS) {
mode_blk->density = SCSI_SAME_DENSITY;
} else {
mode_blk->density = softc->media_density;
}
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* For mode selects, these two fields must be zero.
*/
mode_hdr->data_length = 0;
mode_hdr->medium_type = 0;
/* set the speed to the current value */
mode_hdr->dev_spec = current_speed;
/* set single-initiator buffering mode */
mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (mode_blk)
mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
else
mode_hdr->blk_desc_len = 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* First, if the user wants us to set the compression algorithm or
* just turn compression on, check to make sure that this drive
* supports compression.
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (params_to_set & SA_PARAM_COMPRESSION) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* If the compression algorithm is 0, disable compression.
* If the compression algorithm is non-zero, enable
* compression and set the compression type to the
* specified compression algorithm, unless the algorithm is
* MT_COMP_ENABLE. In that case, we look at the
* compression algorithm that is currently set and if it is
* non-zero, we leave it as-is. If it is zero, and we have
* saved a compression algorithm from a time when
* compression was enabled before, set the compression to
* the saved value.
*/
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
switch (ccomp->hdr.pagecode & ~0x80) {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
case SA_DATA_COMPRESSION_PAGE:
if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
struct scsi_data_compression_page *dcp = &cpage->dcomp;
if (calg == 0) {
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
/*
* Disable compression, but leave the
* decompression and the capability bit
* alone.
*/
dcp->dce_and_dcc = SA_DCP_DCC;
dcp->dde_and_red |= SA_DCP_DDE;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
break;
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/* enable compression && decompression */
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
dcp->dde_and_red |= SA_DCP_DDE;
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
/*
* If there, use compression algorithm from caller.
* Otherwise, if there's a saved compression algorithm
* and there is no current algorithm, use the saved
* algorithm. Else parrot back what we got and hope
* for the best.
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (calg != MT_COMP_ENABLE) {
scsi_ulto4b(calg, dcp->comp_algorithm);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
scsi_ulto4b(calg, dcp->decomp_algorithm);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
} else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
softc->saved_comp_algorithm != 0) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
scsi_ulto4b(softc->saved_comp_algorithm,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
dcp->comp_algorithm);
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
scsi_ulto4b(softc->saved_comp_algorithm,
dcp->decomp_algorithm);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
break;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
case SA_DEVICE_CONFIGURATION_PAGE:
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
{
struct scsi_dev_conf_page *dcp = &cpage->dconf;
if (calg == 0) {
dcp->sel_comp_alg = SA_COMP_NONE;
break;
}
if (calg != MT_COMP_ENABLE) {
dcp->sel_comp_alg = calg;
} else if (dcp->sel_comp_alg == SA_COMP_NONE &&
softc->saved_comp_algorithm != 0) {
dcp->sel_comp_alg = softc->saved_comp_algorithm;
}
break;
}
default:
/*
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
* The drive doesn't seem to support compression,
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* so turn off the set compression bit.
*/
params_to_set &= ~SA_PARAM_COMPRESSION;
xpt_print_path(periph->path);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
printf("device does not seem to support compression\n");
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* If that was the only thing the user wanted us to set,
* clean up allocated resources and return with
* 'operation not supported'.
*/
if (params_to_set == SA_PARAM_NONE) {
free(mode_buffer, M_TEMP);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
xpt_release_ccb(ccb);
return (ENODEV);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
}
/*
* That wasn't the only thing the user wanted us to set.
* So, decrease the stated mode buffer length by the
* size of the compression mode page.
*/
mode_buffer_len -= sizeof(sa_comp_t);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/* It is safe to retry this operation */
scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
(params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
error = cam_periph_runccb(ccb, saerror, 0,
sense_flags, &softc->device_stats);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
QFRLS(ccb);
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
int idx;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
char *xyz = mode_buffer;
xpt_print_path(periph->path);
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
printf("Err%d, Mode Select Data=", error);
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
for (idx = 0; idx < mode_buffer_len; idx++)
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
printf(" 0x%02x", xyz[idx] & 0xff);
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
printf("\n");
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
if (error) {
/*
* If we can, try without setting density/blocksize.
*/
if (mode_blk) {
if ((params_to_set &
(SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
mode_blk = NULL;
goto retry;
}
} else {
mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
cpage = (sa_comp_t *)&mode_blk[1];
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* If we were setting the blocksize, and that failed, we
* want to set it to its original value. If we weren't
* setting the blocksize, we don't want to change it.
*/
scsi_ulto3b(current_blocksize, mode_blk->blklen);
/*
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
* Set density if requested, else preserve old density.
* SCSI_SAME_DENSITY only applies to SCSI-2 or better
* devices, else density we've latched up in our softc.
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
*/
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
if (params_to_set & SA_PARAM_DENSITY) {
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
mode_blk->density = current_density;
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
} else if (softc->scsi_rev > SCSI_REV_CCS) {
mode_blk->density = SCSI_SAME_DENSITY;
} else {
mode_blk->density = softc->media_density;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (params_to_set & SA_PARAM_COMPRESSION)
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
bcopy(ccomp, cpage, sizeof (sa_comp_t));
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* The retry count is the only CCB field that might have been
* changed that we care about, so reset it back to 1.
*/
ccb->ccb_h.retry_count = 1;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
cam_periph_runccb(ccb, saerror, 0, sense_flags,
&softc->device_stats);
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
xpt_release_ccb(ccb);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (ccomp != NULL)
free(ccomp, M_TEMP);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
if (params_to_set & SA_PARAM_COMPRESSION) {
if (error) {
softc->flags &= ~SA_FLAG_COMP_ENABLED;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
/*
* Even if we get an error setting compression,
* do not say that we don't support it. We could
* have been wrong, or it may be media specific.
* softc->flags &= ~SA_FLAG_COMP_SUPP;
*/
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
softc->saved_comp_algorithm = softc->comp_algorithm;
softc->comp_algorithm = 0;
} else {
softc->flags |= SA_FLAG_COMP_ENABLED;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
softc->comp_algorithm = calg;
1) Fix some serious bugs (1 botch on my part which caused a filemark to be written even it the tape was opened readonly- 2 botches in deferred error handling for FIXED LENGTH mode which caused panic && hand resp.). Fixed a memory leak in sa_mount. 2) Fixed an annoying bug when turning of compression to actually reflect this for future status calls. 3) Implement the MTIOCERRSTAT call where latched control and I/O residuals and sense data are returned to the application asking for them.
1998-12-19 23:33:21 +00:00
}
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
free(mode_buffer, M_TEMP);
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static void
saprevent(struct cam_periph *periph, int action)
{
struct sa_softc *softc;
union ccb *ccb;
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
int error, sf;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc = (struct sa_softc *)periph->softc;
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return;
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
return;
Add a quirk type (and one for ARCHIVE Python's) that disables the dummy read at sa_mount that attempts to latch up density. This breaks on at least one drive and sends it into the weeds. Approved: jkh
2000-02-03 18:29:25 +00:00
/*
* We can be quiet about illegal requests.
*/
if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
sf = 0;
Add a quirk type (and one for ARCHIVE Python's) that disables the dummy read at sa_mount that attempts to latch up density. This breaks on at least one drive and sends it into the weeds. Approved: jkh
2000-02-03 18:29:25 +00:00
} else
Sascha Blank <blank@uni-trier.de> convinced me I was an idiot about testing SA_QUIRK_2FM in samount. Fixed. Removed the NORRLS quirk (to save quirk space) and left the behaviour of being quiet about failed reserve/release (failed due Illegal Request) the same. Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
sf = SF_QUIET_IR;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* It is safe to retry this operation */
scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
SSD_FULL_SIZE, 100000);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats);
Don't clear the SA_FLAG_TAPE_LOCKED prior to calling saprevent when we're doing an OFFLINE ioctl- saprevent won't unlock the door, which then causes the unload to fail on some units. If we've already unloaded the tape, don't try and rewind and unload in saclose. This is a slightly riskier change because we're now going to depend on SA_FLAG_TAPE_MOUNTED to say whether we've really unloaded the tape. This involved changing the setting in sadone for tape errors to SA_FLAG_TAPE_FROZEN (which is more accurate anyway-if you get an EIO you've probably lost tape position anyway) where it used to just clear the mounted flag.
1999-11-21 20:23:58 +00:00
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if (error == 0) {
if (action == PR_ALLOW)
softc->flags &= ~SA_FLAG_TAPE_LOCKED;
else
softc->flags |= SA_FLAG_TAPE_LOCKED;
}
xpt_release_ccb(ccb);
}
static int
sarewind(struct cam_periph *periph)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* It is safe to retry this operation */
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
SSD_FULL_SIZE, REWIND_TIMEOUT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REW;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (error == 0)
softc->fileno = softc->blkno = (daddr_t) 0;
else
softc->fileno = softc->blkno = (daddr_t) -1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static int
saspace(struct cam_periph *periph, int count, scsi_space_code code)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* This cannot be retried */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
SSD_FULL_SIZE, SPACE_TIMEOUT);
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/*
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
* If a spacing operation has failed, we need to invalidate
* this mount.
*
* If the spacing operation was setmarks or to end of recorded data,
* we no longer know our relative position.
*
* We are not managing residuals here (really).
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
*/
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (error) {
softc->fileno = softc->blkno = (daddr_t) -1;
} else if (code == SS_SETMARKS || code == SS_EOD) {
softc->fileno = softc->blkno = (daddr_t) -1;
} else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
softc->fileno += count;
softc->blkno = 0;
} else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
softc->blkno += count;
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static int
sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_FMK;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* this *must* not be retried */
scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
FALSE, setmarks, nmarks, SSD_FULL_SIZE, 60000);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
/*
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
* XXXX: Get back the actual number of filemarks written
* XXXX: (there can be a residual).
Several changes having to do blocksize- mostly to force variable as the default. Attempt to determine (at mount time if not done so already) via density code whether a device should default to fixed mode or not. Attempts to set to variable that fail will cause fixed to be selected. Similarly, the '2 filemarks at EOM' quirk is now determined (or attempted to be determined) via density code. Some as yet not entirely tested code for coping with 2FM@EOD position is now also in place.
1998-12-17 18:56:23 +00:00
*/
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
if (error == 0 && nmarks) {
struct sa_softc *softc = (struct sa_softc *)periph->softc;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
softc->filemarks += nmarks;
}
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
xpt_release_ccb(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
/*
* Update relative positions (if we're doing that).
*/
if (error) {
softc->fileno = softc->blkno = (daddr_t) -1;
} else if (softc->fileno != (daddr_t) -1) {
softc->fileno += nmarks;
softc->blkno = 0;
}
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
return (error);
}
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
static int
sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
{
struct scsi_tape_position_data loc;
union ccb *ccb;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
struct sa_softc *softc = (struct sa_softc *)periph->softc;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
int error;
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* We have to try and flush any buffered writes here if we were writing.
*
* The SCSI specification is vague enough about situations like
* different sized blocks in a tape drive buffer as to make one
* wary about trying to figure out the actual block location value
* if data is in the tape drive buffer.
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
*/
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
if (softc->flags & SA_FLAG_TAPE_WRITTEN) {
error = sawritefilemarks(periph, 0, 0);
if (error && error != EACCES)
return (error);
}
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
hard, &loc, SSD_FULL_SIZE, 5000);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_RBSY;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
if (error == 0) {
if (loc.flags & SA_RPOS_UNCERTAIN) {
error = EINVAL; /* nothing is certain */
} else {
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
#if 0
u_int32_t firstblk, lastblk, nbufblk, nbufbyte;
firstblk = scsi_4btoul(loc.firstblk);
lastblk = scsi_4btoul(loc.lastblk);
nbufblk = scsi_4btoul(loc.nbufblk);
nbufbyte = scsi_4btoul(loc.nbufbyte);
if (lastblk || nbufblk || nbufbyte) {
xpt_print_path(periph->path);
printf("rdpos firstblk 0x%x lastblk 0x%x bufblk"
" 0x%x bufbyte 0x%x\n", firstblk, lastblk,
nbufblk, nbufbyte);
}
*blkptr = firstblk;
#else
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
*blkptr = scsi_4btoul(loc.firstblk);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
#endif
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
}
}
xpt_release_ccb(ccb);
return (error);
}
static int
sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* We used to try and flush any buffered writes here.
* Now we push this onto user applications to either
* flush the pending writes themselves (via a zero count
* WRITE FILEMARKS command) or they can trust their tape
* drive to do this correctly for them.
*/
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
hard, *blkptr, SSD_FULL_SIZE, 60 * 60 * 1000);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_POS;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
/*
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
* Note relative file && block number position as now unknown.
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
*/
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->fileno = softc->blkno = (daddr_t) -1;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static int
saretension(struct cam_periph *periph)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* It is safe to retry this operation */
scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_TEN;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (error == 0)
softc->fileno = softc->blkno = (daddr_t) 0;
else
softc->fileno = softc->blkno = (daddr_t) -1;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
return (error);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
static int
sareservereleaseunit(struct cam_periph *periph, int reserve)
{
union ccb *ccb;
struct sa_softc *softc;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
int error;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
softc = (struct sa_softc *)periph->softc;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* It is safe to retry this operation */
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
FALSE, 0, SSD_FULL_SIZE, 5000, reserve);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_RBSY;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
error = cam_periph_runccb(ccb, saerror, 0,
SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
/*
* If the error was Illegal Request, then the device doesn't support
* RESERVE/RELEASE. This is not an error.
*/
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
if (error == EINVAL) {
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
error = 0;
Add a quirk NORRLS (no reserve/release) which can (and will) get set for the devices that don't actually support reserve/release (so we don't keep trying it). Add softc storage and manage storing last I/O and CTL commands that had errors (for correlative purposes). In saclose clear the 'MOUNTED' bit if we either rewind or unload (yes, this shouldn't be necessary since the next open should catch whether a tape change occurred, but I'm having some questions about that actually working so this is safer for the moment). Oh, forgot to mention in previous commit messages that some of the failures particularly at close time cause the tape to be ejected (for the sake of safety)- all this prior to redoing the state machine (which is in progress) which will try and handle this better. Complete the addition of the setmark support (from Martin.Birgmeier@aon.at).
1998-12-22 17:26:13 +00:00
}
Some fixes to handle fixed mode and variable mode more sensibly- and also incorporate some notion of which revision the device is. If it's < SCSI2, for example, READ BLOCK LIMITS is not a MANDATORY command. At any rate, the initial state is to try and read block limits to get a notion of the smallest and largest record size as well as the granularity. However, this doesn't mean that the device should actually *in* fixed block mode should the max && min be equal... *That* choice is (for now) determined by whether the device comes up with a blocksize of nonzero. If so, then it's a fixed block preferred device, otherwise not (this will change again soon). When actually doing I/O, and you're in fixed length mode, the block count is *not* the byte count divided by the minimum block size- it's the byte count divided by the current blocksize (or use shift/mask shortcuts if that worked out...). Then when you *change* the blocksize via an ioctl, make sure this actually propagates to the stored notion of blocksize (and update the shift/mask shortcuts). Misc Other: When doing a mode select, only use the SCSI_SAME_DENSITY (0x7f) code if the device is >= SCSI2- otherwise just use the saved density code. Recover from the ripple of ILLEGAL REQUEST not being 'retried' in that RESERVE/RELEASE is not a mandatory command for < SCSI2 (so ignore it if it fails).
1998-12-11 07:19:36 +00:00
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static int
saloadunload(struct cam_periph *periph, int load)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
/* It is safe to retry this operation */
scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
More bandaids. One important one from Sascha Blank (<blank@fox.uni-trier.de>) about quirks being set as arithmetic values, not as bitfields. Add HP, Kennedy and M4 1/2" reel quirk entries. Do a lot of gratuitous source changing. Audit all functions that build ccbs for the tape driver and decide whether each one can be retried or not. Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_REST;
Correct some botched timeout defines. Allocate only 8KB for the test read in samount. Make things a lot quieter in samount (and other places). Fix ridiculous and not so ridiculous bugs in compression related code in both sagetparams and sasetparams.
1999-12-03 23:14:11 +00:00
QFRLS(ccb);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
if (error || load == 0)
softc->fileno = softc->blkno = (daddr_t) -1;
else if (error == 0)
softc->fileno = softc->blkno = (daddr_t) 0;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
return (error);
}
static int
saerase(struct cam_periph *periph, int longerase)
{
union ccb *ccb;
struct sa_softc *softc;
int error;
softc = (struct sa_softc *)periph->softc;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
ccb = cam_periph_getccb(periph, 1);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
Fix for 11815 (at mount time do a throwaway read of the front of the tape to force the drive to do a media access so it knows what media may be inserted). Also Ken's make_dev patches- relatively untested.
1999-11-17 06:05:09 +00:00
SSD_FULL_SIZE, ERASE_TIMEOUT);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
softc->dsreg = MTIO_DSREG_ZER;
error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
softc->dsreg = MTIO_DSREG_REST;
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
Extend unit numbers to a full 10 bits (split into sections of the minor). Establish and use a control mode open. Control mode opens may open the device without locking, but are prohibited from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT works, but the clearing of latched error status is contingent upon whether another application has the device open, in which case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY and MTCOMP also require a periph aquire. Relative fileno and blkno are tracked. Note that just about any error will make these undefined, and if you space to EOD or use hardware block positioning, these are also lost until the next UNLOAD or REWIND. Driver state is also tracked and recorded in the unit softc to be passed back in mt_dsreg for a MTIOCGET call. Thanks to Dan Strick for suggesting this. Reintroduce 2 filemarks at EOD for all but QIC devices. I really think it's wrong, but there is a lot of 3rd party software that depends upon this (not the least of which is tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices can be marked as only being able to do 1 FM at EOD. At samount time force a load to BOT if we aren't mounted. If the LOAD command fails, use the REWIND command (e.g., for the IBM 3590 which for some gawdawful reason doesn't support the LOAD (to BOT) command). Also at samount time, if you don't know fixed or variable, try to *set* to one of the known fixed (or variable, for special case) density codes. We only have to do this once per boot, so it's not that painful. This is another way to try and figure out the wierd QIC devices without having to quirk everything in the universe. A substantial amount of cleanup as to what operations can and what operations cannot be retried. Don't retry space operations if they fail- it'll just lead to lossage. Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
xpt_release_ccb(ccb);
return (error);
}
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
1999-12-29 04:46:21 +00:00
#endif /* _KERNEL */
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
/*
* Read tape block limits command.
*/
void
scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action,
struct scsi_read_block_limits_data *rlimit_buf,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_read_block_limits *scsi_cmd;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
(u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = READ_BLOCK_LIMITS;
}
void
scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int readop, int sli,
int fixed, u_int32_t length, u_int8_t *data_ptr,
u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_sa_rw *scsi_cmd;
scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
scsi_cmd->opcode = readop ? SA_READ : SA_WRITE;
scsi_cmd->sli_fixed = 0;
if (sli && readop)
scsi_cmd->sli_fixed |= SAR_SLI;
if (fixed)
scsi_cmd->sli_fixed |= SARW_FIXED;
scsi_ulto3b(length, scsi_cmd->length);
scsi_cmd->control = 0;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT,
tag_action, data_ptr, dxfer_len, sense_len,
sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
void
scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int immediate, int eot,
int reten, int load, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_load_unload *scsi_cmd;
scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = LOAD_UNLOAD;
if (immediate)
scsi_cmd->immediate = SLU_IMMED;
if (eot)
scsi_cmd->eot_reten_load |= SLU_EOT;
if (reten)
scsi_cmd->eot_reten_load |= SLU_RETEN;
if (load)
scsi_cmd->eot_reten_load |= SLU_LOAD;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
void
scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int immediate, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_rewind *scsi_cmd;
scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = REWIND;
if (immediate)
scsi_cmd->immediate = SREW_IMMED;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
void
scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, scsi_space_code code,
u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_space *scsi_cmd;
scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
scsi_cmd->opcode = SPACE;
scsi_cmd->code = code;
scsi_ulto3b(count, scsi_cmd->count);
scsi_cmd->control = 0;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
void
scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int immediate, int setmark,
u_int32_t num_marks, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_write_filemarks *scsi_cmd;
scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = WRITE_FILEMARKS;
if (immediate)
scsi_cmd->byte2 |= SWFMRK_IMMED;
if (setmark)
scsi_cmd->byte2 |= SWFMRK_WSMK;
scsi_ulto3b(num_marks, scsi_cmd->num_marks);
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
/*
* The reserve and release unit commands differ only by their opcodes.
*/
void
scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int third_party,
int third_party_id, u_int8_t sense_len,
u_int32_t timeout, int reserve)
{
struct scsi_reserve_release_unit *scsi_cmd;
scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
if (reserve)
scsi_cmd->opcode = RESERVE_UNIT;
else
scsi_cmd->opcode = RELEASE_UNIT;
if (third_party) {
scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
scsi_cmd->lun_thirdparty |=
((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
}
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
void
scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int immediate, int long_erase,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_erase *scsi_cmd;
scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = ERASE;
if (immediate)
scsi_cmd->lun_imm_long |= SE_IMMED;
if (long_erase)
scsi_cmd->lun_imm_long |= SE_LONG;
Add a SA_FLAG_COMP_SUPP flag (to quirk compression as SUPPORTED). Add a SA_FLAG_TAPE_FROZEN for (see below). Add a queue_count field to softc. Add HP T20* Travan-5 like tape device as a FIXED/512 type device. Works for me. Add TANDBERG SLR5 as a variable SA_QUIRK_1FM device. Change VIPER 2525 to 1024 byte blocksize. It's possible other drives should change too, but see below.. Change argument to sagetparams to be pointer to a sa_comp_t union- this can be either a DATA COMPRESSION or a DEVICE CONFIGURATION page. In general compression now tries to use the DATA COMPRESSION page and if that fails tries the DEVICE CONFIGURATION page. Change close routine to not rewind tape if there's a failure in either writing filemarks or in backing over one of two filemarks for a 2FM at EOT tape- instead mark the tape as 'frozen' and print a message saying that either an OFFLINE or REWIND or an MTEOM command is needed to clear this state (all bring certainty back to tape position). Fix sastrategy to not allow I/O to a frozen tape. Add MTIOCGETEOTMODEL/MTIOCSETEOTMODEL ioctls that get and set the EOT model for a tape drive (you can now dynamically change whether it's a 2 FM @ EOT or 1FM at EOT tape device). This ought to give folks something to handle the QIC drives we don't know about. Correctly propagate record of compression algorithm back. Clear FROZEN flag for EOM, REWIND and OFFLINE (and RETENSION and ERASE) cases. Fix an egregious bug in sadone that had left the device queue frozen for deferred (for fixed mode case) errors. Add comment in samount about how useless the test unit ready is for invalidating a mount (this has to be fixed later). Fix residual calculation (per Eivind) in saerror so that negative values for tape records being too large for the supplied buffer get caught. Do some other saerrro cleanup. Per Ken && Justin, add my name to copyright comment.
1999-05-11 04:01:35 +00:00
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
0, sense_len, sizeof(*scsi_cmd), timeout);
SCSI Peripheral drivers for CAM: da - Direct Access Devices (disks, optical devices, SS disks) cd - CDROM (or devices that can act like them, WORM, CD-RW, etc) ch - Medium Changer devices. sa - Sequential Access Devices (tape drives) pass - Application pass-thru driver targ - Target Mode "Processor Target" Emulator pt - Processor Target Devices (scanners, cpus, etc.) Submitted by: The CAM Team
1998-09-15 06:36:34 +00:00
}
Add in block position/block locate functions.
1998-12-18 04:31:43 +00:00
/*
* Read Tape Position command.
*/
void
scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int hardsoft,
struct scsi_tape_position_data *sbp,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_tape_read_position *scmd;
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
(u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
bzero(scmd, sizeof(*scmd));
scmd->opcode = READ_POSITION;
scmd->byte1 = hardsoft;
}
/*
* Set Tape Position command.
*/
void
scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, int hardsoft, u_int32_t blkno,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_tape_locate *scmd;
cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
(u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
bzero(scmd, sizeof(*scmd));
scmd->opcode = LOCATE;
if (hardsoft)
scmd->byte1 |= SA_SPOS_BT;
scsi_ulto4b(blkno, scmd->blkaddr);
}