From: Quinn Tran <quinn.tran@cavium.com>
Date: Fri, 31 Aug 2018 11:24:37 -0700
Subject: [PATCH] scsi: qla2xxx: Defer chip reset until target mode is enabled
References: bsc#1108870
Git-commit: 93eca6135183f7a71e36acd47655a085ed11bcdc
Patch-mainline: v4.20-rc1
For target mode, any chip reset triggered before target mode is enabled will
be held off until user is ready to enable. This prevents the chip from
starting or running before it is intended.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/qla2xxx/qla_os.c | 28 +++++++++++++++++++++-------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1ae31a119a37..9628fe4a967f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -6047,12 +6047,27 @@ qla2x00_do_dpc(void *data)
if (test_and_clear_bit
(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
!test_bit(UNLOADING, &base_vha->dpc_flags)) {
+ bool do_reset = true;
+
+ switch (ql2x_ini_mode) {
+ case QLA2XXX_INI_MODE_ENABLED:
+ break;
+ case QLA2XXX_INI_MODE_DISABLED:
+ if (!qla_tgt_mode_enabled(base_vha))
+ do_reset = false;
+ break;
+ case QLA2XXX_INI_MODE_DUAL:
+ if (!qla_dual_mode_enabled(base_vha))
+ do_reset = false;
+ break;
+ default:
+ break;
+ }
- ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
- "ISP abort scheduled.\n");
- if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
+ if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags))) {
-
+ ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
+ "ISP abort scheduled.\n");
if (ha->isp_ops->abort_isp(base_vha)) {
/* failed. retry later */
set_bit(ISP_ABORT_NEEDED,
@@ -6060,10 +6075,9 @@ qla2x00_do_dpc(void *data)
}
clear_bit(ABORT_ISP_ACTIVE,
&base_vha->dpc_flags);
+ ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
+ "ISP abort end.\n");
}
-
- ql_dbg(ql_dbg_dpc, base_vha, 0x4008,
- "ISP abort end.\n");
}
if (test_and_clear_bit(FCPORT_UPDATE_NEEDED,
--
2.16.4