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scsi: qla2xxx: Do command completion on abort timeout 

On switch, fabric and mgt command timeout, driver send Abort to tell FW to
return the original command.  If abort is timeout, then return both Abort
and original command for cleanup.

Fixes: 219d27d714 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands")
Cc: stable@vger.kernel.org # 5.2
Link: https://lore.kernel.org/r/20191105150657.8092-3-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2019-11-05 07:06:51 -08:00 committed by Martin K. Petersen
parent 983f127603
commit 71c80b75ce
2 changed files with 19 additions and 0 deletions
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1
drivers/scsi/qla2xxx/qla_def.h
View File

@ -604,6 +604,7 @@ typedef struct srb {
const char *name;
int iocbs;
struct qla_qpair *qpair;
struct srb *cmd_sp;
struct list_head elem;
u32 gen1; /* scratch */
u32 gen2; /* scratch */

18
drivers/scsi/qla2xxx/qla_init.c
View File

@ -101,8 +101,22 @@ static void qla24xx_abort_iocb_timeout(void *data)
u32 handle;
unsigned long flags;
if (sp->cmd_sp)
ql_dbg(ql_dbg_async, sp->vha, 0x507c,
"Abort timeout - cmd hdl=%x, cmd type=%x hdl=%x, type=%x\n",
sp->cmd_sp->handle, sp->cmd_sp->type,
sp->handle, sp->type);
else
ql_dbg(ql_dbg_async, sp->vha, 0x507c,
"Abort timeout 2 - hdl=%x, type=%x\n",
sp->handle, sp->type);
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
for (handle = 1; handle < qpair->req->num_outstanding_cmds; handle++) {
if (sp->cmd_sp && (qpair->req->outstanding_cmds[handle] ==
sp->cmd_sp))
qpair->req->outstanding_cmds[handle] = NULL;
/* removing the abort */
if (qpair->req->outstanding_cmds[handle] == sp) {
qpair->req->outstanding_cmds[handle] = NULL;
@ -111,6 +125,9 @@ static void qla24xx_abort_iocb_timeout(void *data)
}
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
if (sp->cmd_sp)
sp->cmd_sp->done(sp->cmd_sp, QLA_OS_TIMER_EXPIRED);
abt->u.abt.comp_status = CS_TIMEOUT;
sp->done(sp, QLA_OS_TIMER_EXPIRED);
}
@ -142,6 +159,7 @@ static int qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
sp->type = SRB_ABT_CMD;
sp->name = "abort";
sp->qpair = cmd_sp->qpair;
sp->cmd_sp = cmd_sp;
if (wait)
sp->flags = SRB_WAKEUP_ON_COMP;