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Commit 2037ce49 authored by Quinn Tran's avatar Quinn Tran Committed by Martin K. Petersen
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scsi: qla2xxx: Fix stale session 



On fast cable pull, where driver is unable to detect device has disappeared
and came back based on switch info, qla2xxx would not re-login while remote
port has already invalidated the session.  This causes IO timeout.  This
patch would relogin to remote device for RSCN affected port.

Signed-off-by: default avatarQuinn Tran <qutran@marvell.com>
Signed-off-by: default avatarHimanshu Madhani <hmadhani@marvell.com>
Reviewed-by: default avatarEwan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-6-hmadhani@marvell.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent ce0ba496

drivers/scsi/qla2xxx/qla_gs.c

+3 −2
Original line number Diff line number Diff line
@@ -3628,7 +3628,6 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp) 
		list_for_each_entry(fcport, &vha->vp_fcports, list) {

			if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))

				continue;

			fcport->scan_needed = 0;

			fcport->scan_state = QLA_FCPORT_FOUND;

			found = true;

			/*
@@ -3637,10 +3636,12 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp) 
			if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {

				qla2x00_clear_loop_id(fcport);

				fcport->flags |= FCF_FABRIC_DEVICE;

			} else if (fcport->d_id.b24 != rp->id.b24) {

			} else if (fcport->d_id.b24 != rp->id.b24 ||

				fcport->scan_needed) {

				qlt_schedule_sess_for_deletion(fcport);

			}

			fcport->d_id.b24 = rp->id.b24;

			fcport->scan_needed = 0;

			break;

		}