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authorQuinn Tran <qutran@marvell.com>2024-07-10 19:10:56 +0200
committerMartin K. Petersen <martin.petersen@oracle.com>2024-07-11 04:44:10 +0200
commitc449b4198701d828e40d60a2abd30970b74a1d75 (patch)
treea4486cc844777bbc94e87d199f70f5404bb65f09 /drivers/scsi
parentscsi: qla2xxx: Reduce fabric scan duplicate code (diff)
downloadlinux-c449b4198701d828e40d60a2abd30970b74a1d75.tar.xz
linux-c449b4198701d828e40d60a2abd30970b74a1d75.zip
scsi: qla2xxx: Use QP lock to search for bsg
On bsg timeout, hardware_lock is used as part of search for the srb. Instead, qpair lock should be used to iterate through different qpair. Cc: stable@vger.kernel.org Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Link: https://lore.kernel.org/r/20240710171057.35066-11-njavali@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/qla2xxx/qla_bsg.c96
1 files changed, 57 insertions, 39 deletions
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 8d1e45b883cd..52dc9604f567 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -3059,17 +3059,61 @@ skip_chip_chk:
return ret;
}
-int
-qla24xx_bsg_timeout(struct bsg_job *bsg_job)
+static bool qla_bsg_found(struct qla_qpair *qpair, struct bsg_job *bsg_job)
{
+ bool found = false;
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct qla_hw_data *ha = vha->hw;
- srb_t *sp;
- int cnt, que;
+ srb_t *sp = NULL;
+ int cnt;
unsigned long flags;
struct req_que *req;
+ spin_lock_irqsave(qpair->qp_lock_ptr, flags);
+ req = qpair->req;
+
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
+ sp = req->outstanding_cmds[cnt];
+ if (sp &&
+ (sp->type == SRB_CT_CMD ||
+ sp->type == SRB_ELS_CMD_HST ||
+ sp->type == SRB_ELS_CMD_HST_NOLOGIN) &&
+ sp->u.bsg_job == bsg_job) {
+ req->outstanding_cmds[cnt] = NULL;
+ spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
+
+ if (!ha->flags.eeh_busy && ha->isp_ops->abort_command(sp)) {
+ ql_log(ql_log_warn, vha, 0x7089,
+ "mbx abort_command failed.\n");
+ bsg_reply->result = -EIO;
+ } else {
+ ql_dbg(ql_dbg_user, vha, 0x708a,
+ "mbx abort_command success.\n");
+ bsg_reply->result = 0;
+ }
+ /* ref: INIT */
+ kref_put(&sp->cmd_kref, qla2x00_sp_release);
+
+ found = true;
+ goto done;
+ }
+ }
+ spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
+
+done:
+ return found;
+}
+
+int
+qla24xx_bsg_timeout(struct bsg_job *bsg_job)
+{
+ struct fc_bsg_reply *bsg_reply = bsg_job->reply;
+ scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
+ struct qla_hw_data *ha = vha->hw;
+ int i;
+ struct qla_qpair *qpair;
+
ql_log(ql_log_info, vha, 0x708b, "%s CMD timeout. bsg ptr %p.\n",
__func__, bsg_job);
@@ -3079,48 +3123,22 @@ qla24xx_bsg_timeout(struct bsg_job *bsg_job)
qla_pci_set_eeh_busy(vha);
}
+ if (qla_bsg_found(ha->base_qpair, bsg_job))
+ goto done;
+
/* find the bsg job from the active list of commands */
- spin_lock_irqsave(&ha->hardware_lock, flags);
- for (que = 0; que < ha->max_req_queues; que++) {
- req = ha->req_q_map[que];
- if (!req)
+ for (i = 0; i < ha->max_qpairs; i++) {
+ qpair = vha->hw->queue_pair_map[i];
+ if (!qpair)
continue;
-
- for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
- sp = req->outstanding_cmds[cnt];
- if (sp &&
- (sp->type == SRB_CT_CMD ||
- sp->type == SRB_ELS_CMD_HST ||
- sp->type == SRB_ELS_CMD_HST_NOLOGIN ||
- sp->type == SRB_FXIOCB_BCMD) &&
- sp->u.bsg_job == bsg_job) {
- req->outstanding_cmds[cnt] = NULL;
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
- if (!ha->flags.eeh_busy && ha->isp_ops->abort_command(sp)) {
- ql_log(ql_log_warn, vha, 0x7089,
- "mbx abort_command failed.\n");
- bsg_reply->result = -EIO;
- } else {
- ql_dbg(ql_dbg_user, vha, 0x708a,
- "mbx abort_command success.\n");
- bsg_reply->result = 0;
- }
- spin_lock_irqsave(&ha->hardware_lock, flags);
- goto done;
-
- }
- }
+ if (qla_bsg_found(qpair, bsg_job))
+ goto done;
}
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
ql_log(ql_log_info, vha, 0x708b, "SRB not found to abort.\n");
bsg_reply->result = -ENXIO;
- return 0;
done:
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
- /* ref: INIT */
- kref_put(&sp->cmd_kref, qla2x00_sp_release);
return 0;
}