From: Arun Easi <aeasi@marvell.com>
Date: Wed, 15 Jun 2022 22:35:06 -0700
Subject: scsi: qla2xxx: Fix losing FCP-2 targets on long port disable with
 I/Os
Patch-mainline: v5.20-rc1
Git-commit: 2416ccd3815ba1613e10a6da0a24ef21acfe5633
References: bsc#1201958

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>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 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
@@ -1835,7 +1835,8 @@ 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);
@@ -1867,7 +1868,8 @@ 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)) {
@@ -1878,7 +1880,8 @@ 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)) {
@@ -1890,7 +1893,8 @@ 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;