> On Mar 8, 2022, at 12:20 AM, Nilesh Javali <njavali@xxxxxxxxxxx> wrote:
>
> From: Quinn Tran <qutran@xxxxxxxxxxx>
>
> While a session is in the middle of a relogin,
> a late RSCN can be delivered from switch. RSCN trigger fabric
> scan where the scan logic can trigger another session login
> while a login is in progress.
> This patch reduce the extra trigger to prevent multiple login
> to the same session.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: bee8b84686c4 ("scsi: qla2xxx: Reduce redundant ADISC command for RSCNs")
> Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
> Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
> ---
> drivers/scsi/qla2xxx/qla_init.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
> index 3c58a2911937..a53894444460 100644
> --- a/drivers/scsi/qla2xxx/qla_init.c
> +++ b/drivers/scsi/qla2xxx/qla_init.c
> @@ -1644,7 +1644,8 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
> fcport->login_gen, fcport->loop_id, fcport->scan_state,
> fcport->fc4_type);
>
> - if (fcport->scan_state != QLA_FCPORT_FOUND)
> + if (fcport->scan_state != QLA_FCPORT_FOUND ||
> + fcport->disc_state == DSC_DELETE_PEND)
> return 0;
>
> if ((fcport->loop_id != FC_NO_LOOP_ID) &&
> @@ -1665,7 +1666,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport)
> if (vha->host->active_mode == MODE_TARGET && !N2N_TOPO(vha->hw))
> return 0;
>
> - if (fcport->flags & FCF_ASYNC_SENT) {
> + if (fcport->flags & (FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE)) {
> set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
> return 0;
> }
> --
> 2.19.0.rc0
>
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
--
Himanshu Madhani Oracle Linux Engineering
