[PATCH v2 01/11] qla2xxx: flush all sessions on zone disable

From: Nilesh Javali <njavali@marvell.com>
To: <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>, <GR-QLogic-Storage-Upstream@marvell.com>
Subject: [PATCH v2 01/11] qla2xxx: flush all sessions on zone disable
Date: Thu, 6 Aug 2020 04:10:04 -0700	[thread overview]
Message-ID: <20200806111014.28434-2-njavali@marvell.com> (raw)
In-Reply-To: <20200806111014.28434-1-njavali@marvell.com>

From: Quinn Tran <qutran@marvell.com>

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

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
---
 drivers/scsi/qla2xxx/qla_gs.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 42c3ad27f1cb..c5529da1df59 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3734,6 +3734,18 @@ static void qla2x00_async_gpnft_gnnft_sp_done(srb_t *sp, int res)
 		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
-- 
2.19.0.rc0

