[PATCH 5.1 20/30] scsi: qla2xxx: Set remote port devloss timeout to 0

From: Greg Kroah-Hartman
Date: Thu May 09 2019 - 14:56:03 EST


From: Giridhar Malavali <gmalavali@xxxxxxxxxxx>

commit ffc81fc07efc94a04695a8c1d458a06aecaf9f30 upstream.

This patch sets remote_port_devloss value to 0. This indicates to FC-NVMe
transport that driver is unloading and transport should not retry.

Fixes: e476fe8af5ff ("scsi: qla2xxx: Fix unload when NVMe devices are configured")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Giridhar Malavali <gmalavali@xxxxxxxxxxx>
Signed-off-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/scsi/qla2xxx/qla_nvme.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -615,7 +615,6 @@ static void qla_nvme_unregister_remote_p
struct fc_port *fcport = container_of(work, struct fc_port,
nvme_del_work);
struct qla_nvme_rport *qla_rport, *trport;
- scsi_qla_host_t *base_vha;

if (!IS_ENABLED(CONFIG_NVME_FC))
return;
@@ -623,23 +622,19 @@ static void qla_nvme_unregister_remote_p
ql_log(ql_log_warn, NULL, 0x2112,
"%s: unregister remoteport on %p\n",__func__, fcport);

- base_vha = pci_get_drvdata(fcport->vha->hw->pdev);
- if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) {
- ql_dbg(ql_dbg_disc, fcport->vha, 0x2114,
- "%s: Notify FC-NVMe transport, set devloss=0\n",
- __func__);
-
- nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
- }
-
list_for_each_entry_safe(qla_rport, trport,
&fcport->vha->nvme_rport_list, list) {
if (qla_rport->fcport == fcport) {
ql_log(ql_log_info, fcport->vha, 0x2113,
"%s: fcport=%p\n", __func__, fcport);
+ nvme_fc_set_remoteport_devloss
+ (fcport->nvme_remote_port, 0);
init_completion(&fcport->nvme_del_done);
- nvme_fc_unregister_remoteport(
- fcport->nvme_remote_port);
+ if (nvme_fc_unregister_remoteport
+ (fcport->nvme_remote_port))
+ ql_log(ql_log_info, fcport->vha, 0x2114,
+ "%s: Failed to unregister nvme_remote_port\n",
+ __func__);
wait_for_completion(&fcport->nvme_del_done);
break;
}