Commit af744ef8 authored Mar 10, 2022 by Quinn Tran Committed by Greg Kroah-Hartman Apr 15, 2022

scsi: qla2xxx: Reduce false trigger to login

commit d2646eed7b19a206912f49101178cbbaa507256c upstream.

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.  Reduce the extra
trigger to prevent multiple logins to the same session.

Link: https://lore.kernel.org/r/20220310092604.22950-10-njavali@marvell.com


Fixes: bee8b846 ("scsi: qla2xxx: Reduce redundant ADISC command for RSCNs")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7f9ce17a

drivers/scsi/qla2xxx/qla_init.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1557,7 +1557,8 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host vha, fc_port_t fcport)
		fcport->conflict, fcport->last_rscn_gen, fcport->rscn_gen,
		fcport->login_gen, fcport->loop_id, fcport->scan_state);

		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) &&
		@@ -1578,7 +1579,7 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host vha, fc_port_t fcport)
		if (vha->host->active_mode == MODE_TARGET)
		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;
		}