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Subject[PATCH 5.0 083/238] scsi: qla2xxx: Fix LUN discovery if loop id is not assigned yet by firmware
Date
5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Himanshu Madhani <hmadhani@marvell.com>

commit ec322937a7f152d68755dc8316523bf6f831b48f upstream.

This patch fixes LUN discovery when loop ID is not yet assigned by the
firmware during driver load/sg_reset operations. Driver will now search for
new loop id before retrying login.

Fixes: 48acad099074 ("scsi: qla2xxx: Fix N2N link re-connect")
Cc: stable@vger.kernel.org #4.19
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/scsi/qla2xxx/qla_init.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -644,11 +644,14 @@ static void qla24xx_handle_gnl_done_even
break;
case DSC_LS_PORT_UNAVAIL:
default:
- if (fcport->loop_id != FC_NO_LOOP_ID)
- qla2x00_clear_loop_id(fcport);
-
- fcport->loop_id = loop_id;
- fcport->fw_login_state = DSC_LS_PORT_UNAVAIL;
+ if (fcport->loop_id == FC_NO_LOOP_ID) {
+ qla2x00_find_new_loop_id(vha, fcport);
+ fcport->fw_login_state =
+ DSC_LS_PORT_UNAVAIL;
+ }
+ ql_dbg(ql_dbg_disc, vha, 0x20e5,
+ "%s %d %8phC\n", __func__, __LINE__,
+ fcport->port_name);
qla24xx_fcport_handle_login(vha, fcport);
break;
}

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