From: Quinn Tran <qutran@marvell.com>
Date: Thu, 6 Aug 2020 04:10:04 -0700
Subject: scsi: qla2xxx: Flush all sessions on zone disable
Patch-mainline: v5.9-rc2
Git-commit: 10ae30ba664822f62de169a61628e31c999c7cc8
References: bsc#1171688 bsc#1174003

On Zone Disable, certain switches would ignore all commands. This causes
timeout for both switch scan command and abort of that command. On
detection of this condition, all sessions will be shutdown.

Link: https://lore.kernel.org/r/20200806111014.28434-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@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_gs.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3736,6 +3736,18 @@ static void qla2x00_async_gpnft_gnnft_sp
 		unsigned long flags;
 		const char *name = sp->name;
 
+		if (res == QLA_OS_TIMER_EXPIRED) {
+			/* switch is ignoring all commands.
+			 * This might be a zone disable behavior.
+			 * This means we hit 64s timeout.
+			 * 22s GPNFT + 44s Abort = 64s
+			 */
+			ql_dbg(ql_dbg_disc, vha, 0xffff,
+			       "%s: Switch Zone check please .\n",
+			       name);
+			qla2x00_mark_all_devices_lost(vha);
+		}
+
 		/*
 		 * We are in an Interrupt context, queue up this
 		 * sp for GNNFT_DONE work. This will allow all