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freebsd/sys/dev/isp/ispvar.h
Matt Jacob 67afe757a2 Add interrupt instrumentation. Change ISP_CFG_NPORT config option to 
a set of options that allows specific loop, loop-only, nport, nport-only
topology settings. Define a required macro for all platforms (USEC_SLEEP).
2000-12-02 18:06:03 +00:00

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21 KiB
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/* $FreeBSD$ */
/*
* Soft Definitions for for Qlogic ISP SCSI adapters.
*
* Copyright (c) 1997, 1998, 1999, 2000 by Matthew Jacob
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 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.
*
*/
#ifndef _ISPVAR_H
#define _ISPVAR_H
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <dev/ic/ispmbox.h>
#ifdef ISP_TARGET_MODE
#include <dev/ic/isp_target.h>
#include <dev/ic/isp_tpublic.h>
#endif
#endif
#ifdef __FreeBSD__
#include <dev/isp/ispmbox.h>
#ifdef ISP_TARGET_MODE
#include <dev/isp/isp_target.h>
#include <dev/isp/isp_tpublic.h>
#endif
#endif
#ifdef __linux__
#include "ispmbox.h"
#ifdef ISP_TARGET_MODE
#include "isp_target.h"
#include "isp_tpublic.h"
#endif
#endif
#define ISP_CORE_VERSION_MAJOR 2
#define ISP_CORE_VERSION_MINOR 0
/*
* Vector for bus specific code to provide specific services.
*/
struct ispsoftc;
struct ispmdvec {
u_int16_t (*dv_rd_reg) __P((struct ispsoftc *, int));
void (*dv_wr_reg) __P((struct ispsoftc *, int, u_int16_t));
int (*dv_mbxdma) __P((struct ispsoftc *));
int (*dv_dmaset) __P((struct ispsoftc *,
XS_T *, ispreq_t *, u_int16_t *, u_int16_t));
void (*dv_dmaclr)
__P((struct ispsoftc *, XS_T *, u_int32_t));
void (*dv_reset0) __P((struct ispsoftc *));
void (*dv_reset1) __P((struct ispsoftc *));
void (*dv_dregs) __P((struct ispsoftc *, const char *));
const u_int16_t *dv_ispfw; /* ptr to f/w */
u_int16_t dv_conf1;
u_int16_t dv_clock; /* clock frequency */
};
/*
* Overall parameters
*/
#define MAX_TARGETS 16
#ifdef ISP2100_FABRIC
#define MAX_FC_TARG 256
#else
#define MAX_FC_TARG 126
#endif
#define ISP_MAX_TARGETS(isp) (IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
#define ISP_MAX_LUNS(isp) (isp)->isp_maxluns
/*
* Macros to access ISP registers through bus specific layers-
* mostly wrappers to vector through the mdvec structure.
*/
#define ISP_READ(isp, reg) \
(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
#define ISP_WRITE(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
#define ISP_MBOXDMASETUP(isp) \
(*(isp)->isp_mdvec->dv_mbxdma)((isp))
#define ISP_DMASETUP(isp, xs, req, iptrp, optr) \
(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
#define ISP_DMAFREE(isp, xs, hndl) \
if ((isp)->isp_mdvec->dv_dmaclr) \
(*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
#define ISP_RESET0(isp) \
if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
#define ISP_RESET1(isp) \
if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
#define ISP_DUMPREGS(isp, m) \
if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
#define ISP_SETBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
#define ISP_CLRBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
/*
* The MEMORYBARRIER macro is defined per platform (to provide synchronization
* on Request and Response Queues, Scratch DMA areas, and Registers)
*
* Defined Memory Barrier Synchronization Types
*/
#define SYNC_REQUEST 0 /* request queue synchronization */
#define SYNC_RESULT 1 /* result queue synchronization */
#define SYNC_SFORDEV 2 /* scratch, sync for ISP */
#define SYNC_SFORCPU 3 /* scratch, sync for CPU */
#define SYNC_REG 4 /* for registers */
/*
* Request/Response Queue defines and macros.
* The maximum is defined per platform (and can be based on board type).
*/
/* This is the size of a queue entry (request and response) */
#define QENTRY_LEN 64
/* Both request and result queue length must be a power of two */
#define RQUEST_QUEUE_LEN(x) MAXISPREQUEST(x)
#define RESULT_QUEUE_LEN(x) \
(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
#define ISP_QUEUE_ENTRY(q, idx) ((q) + ((idx) * QENTRY_LEN))
#define ISP_QUEUE_SIZE(n) ((n) * QENTRY_LEN)
#define ISP_NXT_QENTRY(idx, qlen) (((idx) + 1) & ((qlen)-1))
#define ISP_QFREE(in, out, qlen) \
((in == out)? (qlen - 1) : ((in > out)? \
((qlen - 1) - (in - out)) : (out - in - 1)))
#define ISP_QAVAIL(isp) \
ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
#define ISP_ADD_REQUEST(isp, iptr) \
MEMORYBARRIER(isp, SYNC_REQUEST, iptr, QENTRY_LEN); \
ISP_WRITE(isp, INMAILBOX4, iptr); \
isp->isp_reqidx = iptr
/*
* SCSI Specific Host Adapter Parameters- per bus, per target
*/
typedef struct {
u_int isp_gotdparms : 1,
isp_req_ack_active_neg : 1,
isp_data_line_active_neg: 1,
isp_cmd_dma_burst_enable: 1,
isp_data_dma_burst_enabl: 1,
isp_fifo_threshold : 3,
isp_ultramode : 1,
isp_diffmode : 1,
isp_lvdmode : 1,
isp_fast_mttr : 1, /* fast sram */
isp_initiator_id : 4,
isp_async_data_setup : 4;
u_int16_t isp_selection_timeout;
u_int16_t isp_max_queue_depth;
u_int8_t isp_tag_aging;
u_int8_t isp_bus_reset_delay;
u_int8_t isp_retry_count;
u_int8_t isp_retry_delay;
struct {
u_int dev_enable : 1, /* ignored */
: 1,
dev_update : 1,
dev_refresh : 1,
exc_throttle : 8,
cur_offset : 4,
sync_offset : 4;
u_int8_t cur_period; /* current sync period */
u_int8_t sync_period; /* goal sync period */
u_int16_t dev_flags; /* goal device flags */
u_int16_t cur_dflags; /* current device flags */
} isp_devparam[MAX_TARGETS];
} sdparam;
/*
* Device Flags
*/
#define DPARM_DISC 0x8000
#define DPARM_PARITY 0x4000
#define DPARM_WIDE 0x2000
#define DPARM_SYNC 0x1000
#define DPARM_TQING 0x0800
#define DPARM_ARQ 0x0400
#define DPARM_QFRZ 0x0200
#define DPARM_RENEG 0x0100
#define DPARM_NARROW 0x0080
#define DPARM_ASYNC 0x0040
#define DPARM_PPR 0x0020
#define DPARM_DEFAULT (0xFF00 & ~DPARM_QFRZ)
#define DPARM_SAFE_DFLT (DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
/* technically, not really correct, as they need to be rated based upon clock */
#define ISP_80M_SYNCPARMS 0x0c09
#define ISP_40M_SYNCPARMS 0x0c0a
#define ISP_20M_SYNCPARMS 0x0c0c
#define ISP_20M_SYNCPARMS_1040 0x080c
#define ISP_10M_SYNCPARMS 0x0c19
#define ISP_08M_SYNCPARMS 0x0c25
#define ISP_05M_SYNCPARMS 0x0c32
#define ISP_04M_SYNCPARMS 0x0c41
/*
* Fibre Channel Specifics
*/
#define FL_PORT_ID 0x7e /* FL_Port Special ID */
#define FC_PORT_ID 0x7f /* Fabric Controller Special ID */
#define FC_SNS_ID 0x80 /* SNS Server Special ID */
typedef struct {
u_int32_t isp_fwoptions : 16,
: 4,
loop_seen_once : 1,
isp_loopstate : 3, /* Current Loop State */
isp_fwstate : 3, /* ISP F/W state */
isp_gotdparms : 1,
isp_topo : 3,
isp_onfabric : 1;
u_int8_t isp_loopid; /* hard loop id */
u_int8_t isp_alpa; /* ALPA */
volatile u_int16_t isp_lipseq; /* LIP sequence # */
u_int32_t isp_portid;
u_int8_t isp_execthrottle;
u_int8_t isp_retry_delay;
u_int8_t isp_retry_count;
u_int8_t isp_reserved;
u_int16_t isp_maxalloc;
u_int16_t isp_maxfrmlen;
u_int64_t isp_nodewwn;
u_int64_t isp_portwwn;
/*
* Port Data Base. This is indexed by 'target', which is invariate.
* However, elements within can move around due to loop changes,
* so the actual loop ID passed to the F/W is in this structure.
* The first time the loop is seen up, loopid will match the index
* (except for fabric nodes which are above mapped above FC_SNS_ID
* and are completely virtual), but subsequent LIPs can cause things
* to move around.
*/
struct lportdb {
u_int
loopid : 8,
: 4,
loggedin : 1,
roles : 2,
valid : 1;
u_int32_t portid;
u_int64_t node_wwn;
u_int64_t port_wwn;
} portdb[MAX_FC_TARG], tport[FL_PORT_ID];
/*
* Scratch DMA mapped in area to fetch Port Database stuff, etc.
*/
caddr_t isp_scratch;
u_int32_t isp_scdma;
} fcparam;
#define FW_CONFIG_WAIT 0
#define FW_WAIT_AL_PA 1
#define FW_WAIT_LOGIN 2
#define FW_READY 3
#define FW_LOSS_OF_SYNC 4
#define FW_ERROR 5
#define FW_REINIT 6
#define FW_NON_PART 7
#define LOOP_NIL 0
#define LOOP_LIP_RCVD 1
#define LOOP_PDB_RCVD 2
#define LOOP_READY 7
#define TOPO_NL_PORT 0
#define TOPO_FL_PORT 1
#define TOPO_N_PORT 2
#define TOPO_F_PORT 3
#define TOPO_PTP_STUB 4
/*
* Soft Structure per host adapter
*/
typedef struct ispsoftc {
/*
* Platform (OS) specific data
*/
struct isposinfo isp_osinfo;
/*
* Pointer to bus specific functions and data
*/
struct ispmdvec * isp_mdvec;
/*
* (Mostly) nonvolatile state. Board specific parameters
* may contain some volatile state (e.g., current loop state).
*/
void * isp_param; /* type specific */
u_int16_t isp_fwrev[3]; /* Loaded F/W revision */
u_int16_t isp_romfw_rev[3]; /* PROM F/W revision */
u_int16_t isp_maxcmds; /* max possible I/O cmds */
u_int8_t isp_type; /* HBA Chip Type */
u_int8_t isp_revision; /* HBA Chip H/W Revision */
u_int32_t isp_maxluns; /* maximum luns supported */
u_int32_t
isp_touched : 1, /* board ever seen? */
: 1,
isp_bustype : 1, /* SBus or PCI */
isp_loaded_fw : 1, /* loaded firmware */
isp_dblev : 12, /* debug log mask */
isp_clock : 8, /* input clock */
isp_confopts : 8; /* config options */
/*
* Instrumentation
*/
u_int64_t isp_intcnt; /* total int count */
u_int64_t isp_intbogus; /* spurious int count */
/*
* Volatile state
*/
volatile u_int32_t
isp_mboxbsy : 8, /* mailbox command active */
: 1,
isp_state : 3,
isp_sendmarker : 2, /* send a marker entry */
isp_update : 2, /* update parameters */
isp_nactive : 16; /* how many commands active */
volatile u_int16_t isp_reqodx; /* index of last ISP pickup */
volatile u_int16_t isp_reqidx; /* index of next request */
volatile u_int16_t isp_residx; /* index of next result */
volatile u_int16_t isp_lasthdls; /* last handle seed */
volatile u_int16_t isp_mboxtmp[MAX_MAILBOX];
/*
* Active commands are stored here, indexed by handle functions.
*/
XS_T **isp_xflist;
/*
* request/result queue pointers and dma handles for them.
*/
caddr_t isp_rquest;
caddr_t isp_result;
u_int32_t isp_rquest_dma;
u_int32_t isp_result_dma;
} ispsoftc_t;
#define SDPARAM(isp) ((sdparam *) (isp)->isp_param)
#define FCPARAM(isp) ((fcparam *) (isp)->isp_param)
/*
* ISP Driver Run States
*/
#define ISP_NILSTATE 0
#define ISP_RESETSTATE 1
#define ISP_INITSTATE 2
#define ISP_RUNSTATE 3
/*
* ISP Configuration Options
*/
#define ISP_CFG_NORELOAD 0x80 /* don't download f/w */
#define ISP_CFG_NONVRAM 0x40 /* ignore NVRAM */
#define ISP_CFG_FULL_DUPLEX 0x01 /* Full Duplex (Fibre Channel only) */
#define ISP_CFG_OWNWWN 0x02 /* override NVRAM wwn */
#define ISP_CFG_PORT_PREF 0x0C /* Mask for Port Prefs (2200 only) */
#define ISP_CFG_LPORT 0x00 /* prefer {N/F}L-Port connection */
#define ISP_CFG_NPORT 0x04 /* prefer {N/F}-Port connection */
#define ISP_CFG_NPORT_ONLY 0x08 /* insist on {N/F}-Port connection */
#define ISP_CFG_LPORT_ONLY 0x0C /* insist on {N/F}L-Port connection */
/*
* Firmware related defines
*/
#define ISP_CODE_ORG 0x1000 /* default f/w code start */
#define ISP_FW_REV(maj, min, mic) ((maj << 24) | (min << 16) | mic)
#define ISP_FW_REVX(xp) ((xp[0]<<24) | (xp[1] << 16) | xp[2])
/*
* Bus (implementation) types
*/
#define ISP_BT_PCI 0 /* PCI Implementations */
#define ISP_BT_SBUS 1 /* SBus Implementations */
/*
* Chip Types
*/
#define ISP_HA_SCSI 0xf
#define ISP_HA_SCSI_UNKNOWN 0x1
#define ISP_HA_SCSI_1020 0x2
#define ISP_HA_SCSI_1020A 0x3
#define ISP_HA_SCSI_1040 0x4
#define ISP_HA_SCSI_1040A 0x5
#define ISP_HA_SCSI_1040B 0x6
#define ISP_HA_SCSI_1040C 0x7
#define ISP_HA_SCSI_1240 0x8
#define ISP_HA_SCSI_1080 0x9
#define ISP_HA_SCSI_1280 0xa
#define ISP_HA_SCSI_12160 0xb
#define ISP_HA_FC 0xf0
#define ISP_HA_FC_2100 0x10
#define ISP_HA_FC_2200 0x20
#define IS_SCSI(isp) (isp->isp_type & ISP_HA_SCSI)
#define IS_1240(isp) (isp->isp_type == ISP_HA_SCSI_1240)
#define IS_1080(isp) (isp->isp_type == ISP_HA_SCSI_1080)
#define IS_1280(isp) (isp->isp_type == ISP_HA_SCSI_1280)
#define IS_12160(isp) (isp->isp_type == ISP_HA_SCSI_12160)
#define IS_12X0(isp) (IS_1240(isp) || IS_1280(isp))
#define IS_DUALBUS(isp) (IS_12X0(isp) || IS_12160(isp))
#define IS_ULTRA2(isp) (IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
#define IS_ULTRA3(isp) (IS_12160(isp))
#define IS_FC(isp) (isp->isp_type & ISP_HA_FC)
#define IS_2100(isp) (isp->isp_type == ISP_HA_FC_2100)
#define IS_2200(isp) (isp->isp_type == ISP_HA_FC_2200)
/*
* DMA cookie macros
*/
#define DMA_MSW(x) (((x) >> 16) & 0xffff)
#define DMA_LSW(x) (((x) & 0xffff))
/*
* Core System Function Prototypes
*/
/*
* Reset Hardware. Totally. Assumes that you'll follow this with
* a call to isp_init.
*/
void isp_reset __P((struct ispsoftc *));
/*
* Initialize Hardware to known state
*/
void isp_init __P((struct ispsoftc *));
/*
* Reset the ISP and call completion for any orphaned commands.
*/
void isp_reinit __P((struct ispsoftc *));
/*
* Interrupt Service Routine
*/
int isp_intr __P((void *));
/*
* Command Entry Point- Platform Dependent layers call into this
*/
int isp_start __P((XS_T *));
/* these values are what isp_start returns */
#define CMD_COMPLETE 101 /* command completed */
#define CMD_EAGAIN 102 /* busy- maybe retry later */
#define CMD_QUEUED 103 /* command has been queued for execution */
#define CMD_RQLATER 104 /* requeue this command later */
/*
* Command Completion Point- Core layers call out from this with completed cmds
*/
void isp_done __P((XS_T *));
/*
* Platform Dependent to External to Internal Control Function
*
* Assumes all locks are held and that no reentrancy issues need be dealt with.
*
*/
typedef enum {
ISPCTL_RESET_BUS, /* Reset Bus */
ISPCTL_RESET_DEV, /* Reset Device */
ISPCTL_ABORT_CMD, /* Abort Command */
ISPCTL_UPDATE_PARAMS, /* Update Operating Parameters */
ISPCTL_FCLINK_TEST, /* Test FC Link Status */
ISPCTL_PDB_SYNC, /* Synchronize Port Database */
ISPCTL_TOGGLE_TMODE /* toggle target mode */
} ispctl_t;
int isp_control __P((struct ispsoftc *, ispctl_t, void *));
/*
* Platform Dependent to Internal to External Control Function
* (each platform must provide such a function)
*
* Assumes all locks are held and that no reentrancy issues need be dealt with.
*
*/
typedef enum {
ISPASYNC_NEW_TGT_PARAMS,
ISPASYNC_BUS_RESET, /* Bus Was Reset */
ISPASYNC_LOOP_DOWN, /* FC Loop Down */
ISPASYNC_LOOP_UP, /* FC Loop Up */
ISPASYNC_PDB_CHANGED, /* FC Port Data Base Changed */
ISPASYNC_CHANGE_NOTIFY, /* FC SNS Change Notification */
ISPASYNC_FABRIC_DEV, /* FC New Fabric Device */
ISPASYNC_TARGET_MESSAGE, /* target message */
ISPASYNC_TARGET_EVENT, /* target asynchronous event */
ISPASYNC_TARGET_ACTION /* other target command action */
} ispasync_t;
int isp_async __P((struct ispsoftc *, ispasync_t, void *));
/*
* Platform Dependent Error and Debug Printout
*/
void isp_prt __P((struct ispsoftc *, int level, const char *, ...));
#define ISP_LOGALL 0x0 /* log always */
#define ISP_LOGCONFIG 0x1 /* log configuration messages */
#define ISP_LOGINFO 0x2 /* log informational messages */
#define ISP_LOGWARN 0x4 /* log warning messages */
#define ISP_LOGERR 0x8 /* log error messages */
#define ISP_LOGDEBUG0 0x10 /* log simple debug messages */
#define ISP_LOGDEBUG1 0x20 /* log intermediate debug messages */
#define ISP_LOGDEBUG2 0x40 /* log most debug messages */
#define ISP_LOGDEBUG3 0x100 /* log high frequency debug messages */
#define ISP_LOGTDEBUG0 0x200 /* log simple debug messages (target mode) */
#define ISP_LOGTDEBUG1 0x400 /* log intermediate debug messages (target) */
#define ISP_LOGTDEBUG2 0x800 /* log all debug messages (target) */
/*
* Each Platform provides it's own isposinfo substructure of the ispsoftc
* defined above.
*
* Each platform must also provide the following macros/defines:
*
*
* INLINE - platform specific define for 'inline' functions
*
* ISP2100_FABRIC - defines whether FABRIC support is enabled
* ISP2100_SCRLEN - length for the Fibre Channel scratch DMA area
*
* MEMZERO(dst, src) platform zeroing function
* MEMCPY(dst, src, count) platform copying function
* SNPRINTF(buf, bufsize, fmt, ...) snprintf
* STRNCAT(dstbuf, size, srcbuf) strncat
* USEC_DELAY(usecs) microsecond spindelay function
* USEC_SLEEP(isp, usecs) microsecond sleep function
*
* NANOTIME_T nanosecond time type
*
* GET_NANOTIME(NANOTIME_T *) get current nanotime.
*
* GET_NANOSEC(NANOTIME_T *) get u_int64_t from NANOTIME_T
*
* NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
* subtract two NANOTIME_T values
*
*
* MAXISPREQUEST(struct ispsoftc *) maximum request queue size
* for this particular board type
*
* MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
*
* Function/Macro the provides memory synchronization on
* various objects so that the ISP's and the system's view
* of the same object is consistent.
*
* MBOX_ACQUIRE(struct ispsoftc *) acquire lock on mailbox regs
* MBOX_WAIT_COMPLETE(struct ispsoftc *) wait for mailbox cmd to be done
* MBOX_NOTIFY_COMPLETE(struct ispsoftc *) notification of mbox cmd donee
* MBOX_RELEASE(struct ispsoftc *) release lock on mailbox regs
*
*
* SCSI_GOOD SCSI 'Good' Status
* SCSI_CHECK SCSI 'Check Condition' Status
* SCSI_BUSY SCSI 'Busy' Status
* SCSI_QFULL SCSI 'Queue Full' Status
*
* XS_T Platform SCSI transaction type (i.e., command for HBA)
* XS_ISP(xs) gets an instance out of an XS_T
* XS_CHANNEL(xs) gets the channel (bus # for DUALBUS cards) ""
* XS_TGT(xs) gets the target ""
* XS_LUN(xs) gets the lun ""
* XS_CDBP(xs) gets a pointer to the scsi CDB ""
* XS_CDBLEN(xs) gets the CDB's length ""
* XS_XFRLEN(xs) gets the associated data transfer length ""
* XS_TIME(xs) gets the time (in milliseconds) for this command
* XS_RESID(xs) gets the current residual count
* XS_STSP(xs) gets a pointer to the SCSI status byte ""
* XS_SNSP(xs) gets a pointer to the associate sense data
* XS_SNSLEN(xs) gets the length of sense data storage
* XS_SNSKEY(xs) dereferences XS_SNSP to get the current stored Sense Key
* XS_TAG_P(xs) predicate of whether this command should be tagged
* XS_TAG_TYPE(xs) which type of tag to use
* XS_SETERR(xs) set error state
*
* HBA_NOERROR command has no erros
* HBA_BOTCH hba botched something
* HBA_CMDTIMEOUT command timed out
* HBA_SELTIMEOUT selection timed out (also port logouts for FC)
* HBA_TGTBSY target returned a BUSY status
* HBA_BUSRESET bus reset destroyed command
* HBA_ABORTED command was aborted (by request)
* HBA_DATAOVR a data overrun was detected
* HBA_ARQFAIL Automatic Request Sense failed
*
* XS_ERR(xs) return current error state
* XS_NOERR(xs) there is no error currently set
* XS_INITERR(xs) initialize error state
*
* XS_SAVE_SENSE(xs, sp) save sense data
*
* XS_SET_STATE_STAT(isp, sp, xs) platform dependent interpreter of
* response queue entry status bits
*
*
* DEFAULT_IID(struct ispsoftc *) Default SCSI initiator ID
* DEFAULT_LOOPID(struct ispsoftc *) Default FC Loop ID
* DEFAULT_NODEWWN(struct ispsoftc *) Default Node WWN
* DEFAULT_PORTWWN(struct ispsoftc *) Default Port WWN
* These establish reasonable defaults for each platform.
* These must be available independent of card NVRAM and are
* to be used should NVRAM not be readable.
*
* ISP_NODEWWN(struct ispsoftc *) FC Node WWN to use
* ISP_PORTWWN(struct ispsoftc *) FC Port WWN to use
*
* These are to be used after NVRAM is read. The tags
* in fcparam.isp_{node,port}wwn reflect the values
* read from NVRAM (possibly corrected for card botches).
* Each platform can take that information and override
* it or ignore and return the Node and Port WWNs to be
* used when sending the Qlogic f/w the Initialization Control
* Block.
*
* (XXX these do endian specific transformations- in transition XXX)
* ISP_SWIZZLE_ICB
* ISP_UNSWIZZLE_AND_COPY_PDBP
* ISP_SWIZZLE_CONTINUATION
* ISP_SWIZZLE_REQUEST
* ISP_UNSWIZZLE_RESPONSE
* ISP_SWIZZLE_SNS_REQ
* ISP_UNSWIZZLE_SNS_RSP
* ISP_SWIZZLE_NVRAM_WORD
*
*
*/
#endif /* _ISPVAR_H */
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