On Fri, 2019-08-30 at 15:24 -0700, Himanshu Madhani wrote:
> From: Quinn Tran <qutran@xxxxxxxxxxx>
>
> 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 invalidate
> the session. This cause IO timeout. This patch would relogin
> to remote device for RSCN affected port.
>
> Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
> Signed-off-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
> ---
> drivers/scsi/qla2xxx/qla_gs.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
> index 03f94eb372b6..dc0e36676313 100644
> --- a/drivers/scsi/qla2xxx/qla_gs.c
> +++ b/drivers/scsi/qla2xxx/qla_gs.c
> @@ -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;
> }
>
Reviewed-by: Ewan D. Milne <emilne@xxxxxxxxxx>
