[PATCH 5.18 0968/1095] scsi: qla2xxx: Fix losing FCP-2 targets on long port disable with I/Os

Greg Kroah-Hartman
2022-08-15T23:09:37Z

From: Arun Easi <aeasi@marvell.com>

commit 2416ccd3815ba1613e10a6da0a24ef21acfe5633 upstream.

FCP-2 devices were not coming back online once they were lost, login
retries exhausted, and then came back up. Fix this by accepting RSCN when
the device is not online.

Link: https://lore.kernel.org/r/20220616053508.27186-10-njavali@marvell.com
Fixes: 44c57f205876 ("scsi: qla2xxx: Changes to support FCP2 Target")
Cc: stable@vger.kernel.org
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/scsi/qla2xxx/qla_init.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1834,7 +1834,8 @@ void qla2x00_handle_rscn(scsi_qla_host_t
case RSCN_PORT_ADDR:
fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
if (fcport) {
- if (fcport->flags & FCF_FCP2_DEVICE) {
+ if (fcport->flags & FCF_FCP2_DEVICE &&
+ atomic_read(&fcport->state) == FCS_ONLINE) {
ql_dbg(ql_dbg_disc, vha, 0x2115,
"Delaying session delete for FCP2 portid=%06x %8phC ",
fcport->d_id.b24, fcport->port_name);
@@ -1866,7 +1867,8 @@ void qla2x00_handle_rscn(scsi_qla_host_t
break;
case RSCN_AREA_ADDR:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (fcport->flags & FCF_FCP2_DEVICE)
+ if (fcport->flags & FCF_FCP2_DEVICE &&
+ atomic_read(&fcport->state) == FCS_ONLINE)
continue;

if ((ea->id.b24 & 0xffff00) == (fcport->d_id.b24 & 0xffff00)) {
@@ -1877,7 +1879,8 @@ void qla2x00_handle_rscn(scsi_qla_host_t
break;
case RSCN_DOM_ADDR:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (fcport->flags & FCF_FCP2_DEVICE)
+ if (fcport->flags & FCF_FCP2_DEVICE &&
+ atomic_read(&fcport->state) == FCS_ONLINE)
continue;

if ((ea->id.b24 & 0xff0000) == (fcport->d_id.b24 & 0xff0000)) {
@@ -1889,7 +1892,8 @@ void qla2x00_handle_rscn(scsi_qla_host_t
case RSCN_FAB_ADDR:
default:
list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (fcport->flags & FCF_FCP2_DEVICE)
+ if (fcport->flags & FCF_FCP2_DEVICE &&
+ atomic_read(&fcport->state) == FCS_ONLINE)
continue;

fcport->scan_needed = 1;