[PATCH 12/25] qla2xxx: Fix path recovery

Himanshu Madhani
2017-05-19T21:54:17Z

From: Quinn Tran <quinn.tran@cavium.com>

If the port is moved/changed, current code would trigger
a deletion. If the port is already deleted, then do relogin.

Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
drivers/scsi/qla2xxx/qla_gs.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 9bc9aa9e164a..5acebaf57796 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3118,16 +3118,27 @@ void qla24xx_handle_gpnid_event(scsi_qla_host_t *vha, struct event_arg *ea)

if (fcport) {
/* cable moved. just plugged in */
- ql_dbg(ql_dbg_disc, vha, 0xffff,
- "%s %d %8phC post del sess\n",
- __func__, __LINE__, fcport->port_name);
-
fcport->rscn_gen++;
fcport->d_id = ea->id;
fcport->scan_state = QLA_FCPORT_FOUND;
fcport->flags |= FCF_FABRIC_DEVICE;

- qlt_schedule_sess_for_deletion_lock(fcport);
+ switch (fcport->disc_state) {
+ case DSC_DELETED:
+ ql_dbg(ql_dbg_disc, vha, 0x210d,
+ "%s %d %8phC login\n", __func__, __LINE__,
+ fcport->port_name);
+ qla24xx_fcport_handle_login(vha, fcport);
+ break;
+ case DSC_DELETE_PEND:
+ break;
+ default:
+ ql_dbg(ql_dbg_disc, vha, 0x2064,
+ "%s %d %8phC post del sess\n",
+ __func__, __LINE__, fcport->port_name);
+ qlt_schedule_sess_for_deletion_lock(fcport);
+ break;
+ }
} else {
/* create new fcport */
ql_dbg(ql_dbg_disc, vha, 0xffff,
--
2.12.0