Commit 2037ce49 authored by Quinn Tran's avatar Quinn Tran Committed by Martin K. Petersen

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.comSigned-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent ce0ba496
...@@ -3628,7 +3628,6 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp) ...@@ -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) { list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE)) if (memcmp(rp->port_name, fcport->port_name, WWN_SIZE))
continue; continue;
fcport->scan_needed = 0;
fcport->scan_state = QLA_FCPORT_FOUND; fcport->scan_state = QLA_FCPORT_FOUND;
found = true; found = true;
/* /*
...@@ -3637,10 +3636,12 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp) ...@@ -3637,10 +3636,12 @@ void qla24xx_async_gnnft_done(scsi_qla_host_t *vha, srb_t *sp)
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) { if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
qla2x00_clear_loop_id(fcport); qla2x00_clear_loop_id(fcport);
fcport->flags |= FCF_FABRIC_DEVICE; 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); qlt_schedule_sess_for_deletion(fcport);
} }
fcport->d_id.b24 = rp->id.b24; fcport->d_id.b24 = rp->id.b24;
fcport->scan_needed = 0;
break; break;
} }
......
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