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scsi: ncr53c8xx: Use SAM status values

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Use SAM status values instead of the driver-defined ones.  This also fixes
a potential bug as the driver-defined values declare 'COMMAND TERMINATED'
with a value of 0x20, whereas SCSI-II defines it with a value of 0x22.

Link: https://lore.kernel.org/r/20210113090500.129644-36-hare@suse.de
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2021-01-13 10:05:00 +01:00 committed by Martin K. Petersen
parent aced5500ec
commit 491152c7c3
2 changed files with 46 additions and 53 deletions
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83
drivers/scsi/ncr53c8xx.c
View File

@ -148,6 +148,11 @@ static int ncr_debug = SCSI_NCR_DEBUG_FLAGS;
#define DEBUG_FLAGS SCSI_NCR_DEBUG_FLAGS
#endif
/*
* Locally used status flag
*/
#define SAM_STAT_ILLEGAL 0xff
static inline struct list_head *ncr_list_pop(struct list_head *head)
{
if (!list_empty(head)) {
@ -998,8 +1003,6 @@ typedef u32 tagmap_t;
** Other definitions
*/
#define ScsiResult(host_code, scsi_code) (((host_code) << 16) + ((scsi_code) & 0x7f))
#define initverbose (driver_setup.verbose)
#define bootverbose (np->verbose)
@ -2430,7 +2433,7 @@ static struct script script0 __initdata = {
*/
SCR_FROM_REG (SS_REG),
0,
SCR_CALL ^ IFFALSE (DATA (S_GOOD)),
SCR_CALL ^ IFFALSE (DATA (SAM_STAT_GOOD)),
PADDRH (bad_status),
#ifndef SCSI_NCR_CCB_DONE_SUPPORT
@ -2879,7 +2882,7 @@ static struct scripth scripth0 __initdata = {
8,
SCR_TO_REG (HS_REG),
0,
SCR_LOAD_REG (SS_REG, S_GOOD),
SCR_LOAD_REG (SS_REG, SAM_STAT_GOOD),
0,
SCR_JUMP,
PADDR (cleanup_ok),
@ -3341,15 +3344,15 @@ static struct scripth scripth0 __initdata = {
PADDRH (reset),
}/*-------------------------< BAD_STATUS >-----------------*/,{
/*
** If command resulted in either QUEUE FULL,
** If command resulted in either TASK_SET FULL,
** CHECK CONDITION or COMMAND TERMINATED,
** call the C code.
*/
SCR_INT ^ IFTRUE (DATA (S_QUEUE_FULL)),
SCR_INT ^ IFTRUE (DATA (SAM_STAT_TASK_SET_FULL)),
SIR_BAD_STATUS,
SCR_INT ^ IFTRUE (DATA (S_CHECK_COND)),
SCR_INT ^ IFTRUE (DATA (SAM_STAT_CHECK_CONDITION)),
SIR_BAD_STATUS,
SCR_INT ^ IFTRUE (DATA (S_TERMINATED)),
SCR_INT ^ IFTRUE (DATA (SAM_STAT_COMMAND_TERMINATED)),
SIR_BAD_STATUS,
SCR_RETURN,
0,
@ -4371,7 +4374,7 @@ static int ncr_queue_command (struct ncb *np, struct scsi_cmnd *cmd)
*/
cp->actualquirks = 0;
cp->host_status = cp->nego_status ? HS_NEGOTIATE : HS_BUSY;
cp->scsi_status = S_ILLEGAL;
cp->scsi_status = SAM_STAT_ILLEGAL;
cp->parity_status = 0;
cp->xerr_status = XE_OK;
@ -4602,7 +4605,7 @@ static int ncr_reset_bus (struct ncb *np, struct scsi_cmnd *cmd, int sync_reset)
* in order to keep it alive.
*/
if (!found && sync_reset && !retrieve_from_waiting_list(0, np, cmd)) {
cmd->result = DID_RESET << 16;
set_host_byte(cmd, DID_RESET);
ncr_queue_done_cmd(np, cmd);
}
@ -4630,7 +4633,7 @@ static int ncr_abort_command (struct ncb *np, struct scsi_cmnd *cmd)
* First, look for the scsi command in the waiting list
*/
if (remove_from_waiting_list(np, cmd)) {
cmd->result = ScsiResult(DID_ABORT, 0);
set_host_byte(cmd, DID_ABORT);
ncr_queue_done_cmd(np, cmd);
return SCSI_ABORT_SUCCESS;
}
@ -4895,7 +4898,8 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
** Print out any error for debugging purpose.
*/
if (DEBUG_FLAGS & (DEBUG_RESULT|DEBUG_TINY)) {
if (cp->host_status!=HS_COMPLETE || cp->scsi_status!=S_GOOD) {
if (cp->host_status != HS_COMPLETE ||
cp->scsi_status != SAM_STAT_GOOD) {
PRINT_ADDR(cmd, "ERROR: cmd=%x host_status=%x "
"scsi_status=%x\n", cmd->cmnd[0],
cp->host_status, cp->scsi_status);
@ -4905,15 +4909,16 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
/*
** Check the status.
*/
cmd->result = 0;
if ( (cp->host_status == HS_COMPLETE)
&& (cp->scsi_status == S_GOOD ||
cp->scsi_status == S_COND_MET)) {
&& (cp->scsi_status == SAM_STAT_GOOD ||
cp->scsi_status == SAM_STAT_CONDITION_MET)) {
/*
* All went well (GOOD status).
* CONDITION MET status is returned on
* CONDITION MET status is returned on
* `Pre-Fetch' or `Search data' success.
*/
cmd->result = ScsiResult(DID_OK, cp->scsi_status);
set_status_byte(cmd, cp->scsi_status);
/*
** @RESID@
@ -4944,11 +4949,11 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
}
}
} else if ((cp->host_status == HS_COMPLETE)
&& (cp->scsi_status == S_CHECK_COND)) {
&& (cp->scsi_status == SAM_STAT_CHECK_CONDITION)) {
/*
** Check condition code
*/
cmd->result = DID_OK << 16 | S_CHECK_COND;
set_status_byte(cmd, SAM_STAT_CHECK_CONDITION);
/*
** Copy back sense data to caller's buffer.
@ -4965,20 +4970,20 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
printk (".\n");
}
} else if ((cp->host_status == HS_COMPLETE)
&& (cp->scsi_status == S_CONFLICT)) {
&& (cp->scsi_status == SAM_STAT_RESERVATION_CONFLICT)) {
/*
** Reservation Conflict condition code
*/
cmd->result = DID_OK << 16 | S_CONFLICT;
set_status_byte(cmd, SAM_STAT_RESERVATION_CONFLICT);
} else if ((cp->host_status == HS_COMPLETE)
&& (cp->scsi_status == S_BUSY ||
cp->scsi_status == S_QUEUE_FULL)) {
&& (cp->scsi_status == SAM_STAT_BUSY ||
cp->scsi_status == SAM_STAT_TASK_SET_FULL)) {
/*
** Target is busy.
*/
cmd->result = ScsiResult(DID_OK, cp->scsi_status);
set_status_byte(cmd, cp->scsi_status);
} else if ((cp->host_status == HS_SEL_TIMEOUT)
|| (cp->host_status == HS_TIMEOUT)) {
@ -4986,21 +4991,24 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
/*
** No response
*/
cmd->result = ScsiResult(DID_TIME_OUT, cp->scsi_status);
set_status_byte(cmd, cp->scsi_status);
set_host_byte(cmd, DID_TIME_OUT);
} else if (cp->host_status == HS_RESET) {
/*
** SCSI bus reset
*/
cmd->result = ScsiResult(DID_RESET, cp->scsi_status);
set_status_byte(cmd, sp->scsi_status);
set_host_byte(cmd, DID_RESET);
} else if (cp->host_status == HS_ABORTED) {
/*
** Transfer aborted
*/
cmd->result = ScsiResult(DID_ABORT, cp->scsi_status);
set_status_byte(cmd, cp->scsi_status);
set_host_byte(cmd, DID_ABORT);
} else {
@ -5010,7 +5018,8 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
PRINT_ADDR(cmd, "COMMAND FAILED (%x %x) @%p.\n",
cp->host_status, cp->scsi_status, cp);
cmd->result = ScsiResult(DID_ERROR, cp->scsi_status);
set_status_byte(cmd, cp->scsi_status);
set_host_byte(cmd, DID_ERROR);
}
/*
@ -5026,10 +5035,10 @@ void ncr_complete (struct ncb *np, struct ccb *cp)
if (cp->host_status==HS_COMPLETE) {
switch (cp->scsi_status) {
case S_GOOD:
case SAM_STAT_GOOD:
printk (" GOOD");
break;
case S_CHECK_COND:
case SAM_STAT_CHECK_CONDITION:
printk (" SENSE:");
p = (u_char*) &cmd->sense_buffer;
for (i=0; i<14; i++)
@ -6564,7 +6573,7 @@ static void ncr_sir_to_redo(struct ncb *np, int num, struct ccb *cp)
switch(s_status) {
default: /* Just for safety, should never happen */
case S_QUEUE_FULL:
case SAM_STAT_TASK_SET_FULL:
/*
** Decrease number of tags to the number of
** disconnected commands.
@ -6588,15 +6597,15 @@ static void ncr_sir_to_redo(struct ncb *np, int num, struct ccb *cp)
*/
cp->phys.header.savep = cp->startp;
cp->host_status = HS_BUSY;
cp->scsi_status = S_ILLEGAL;
cp->scsi_status = SAM_STAT_ILLEGAL;
ncr_put_start_queue(np, cp);
if (disc_cnt)
INB (nc_ctest2); /* Clear SIGP */
OUTL_DSP (NCB_SCRIPT_PHYS (np, reselect));
return;
case S_TERMINATED:
case S_CHECK_COND:
case SAM_STAT_COMMAND_TERMINATED:
case SAM_STAT_CHECK_CONDIION:
/*
** If we were requesting sense, give up.
*/
@ -6646,7 +6655,7 @@ static void ncr_sir_to_redo(struct ncb *np, int num, struct ccb *cp)
cp->phys.header.wlastp = startp;
cp->host_status = HS_BUSY;
cp->scsi_status = S_ILLEGAL;
cp->scsi_status = SAM_STAT_ILLEGAL;
cp->auto_sense = s_status;
cp->start.schedule.l_paddr =
@ -8035,7 +8044,7 @@ printk("ncr53c8xx_queue_command\n");
spin_lock_irqsave(&np->smp_lock, flags);
if ((sts = ncr_queue_command(np, cmd)) != DID_OK) {
cmd->result = sts << 16;
set_host_byte(cmd, sts;
#ifdef DEBUG_NCR53C8XX
printk("ncr53c8xx : command not queued - result=%d\n", sts);
#endif
@ -8226,7 +8235,7 @@ static void process_waiting_list(struct ncb *np, int sts)
#ifdef DEBUG_WAITING_LIST
printk("%s: cmd %lx done forced sts=%d\n", ncr_name(np), (u_long) wcmd, sts);
#endif
wcmd->result = sts << 16;
set_host_byte(wcmd, sts);
ncr_queue_done_cmd(np, wcmd);
}
}

16
drivers/scsi/ncr53c8xx.h
View File

@ -1238,22 +1238,6 @@ struct scr_tblsel {
**-----------------------------------------------------------
*/
/*
** Status
*/
#define S_GOOD (0x00)
#define S_CHECK_COND (0x02)
#define S_COND_MET (0x04)
#define S_BUSY (0x08)
#define S_INT (0x10)
#define S_INT_COND_MET (0x14)
#define S_CONFLICT (0x18)
#define S_TERMINATED (0x20)
#define S_QUEUE_FULL (0x28)
#define S_ILLEGAL (0xff)
#define S_SENSE (0x80)
/*
* End of ncrreg from FreeBSD
*/