scsi: qla2xxx: edif: Synchronize NPIV deletion with authentication application

Notify authentication application of a NPIV deletion event is about to
occur. This allows app to perform cleanup.

Link: https://lore.kernel.org/r/20220607044627.19563-7-njavali@marvell.com
Fixes: 9efea843 ("scsi: qla2xxx: edif: Add detection of secure device")
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>

drivers/scsi/qla2xxx/qla_edif_bsg.h

@@ -253,4 +253,6 @@ struct aen_complete_cmd {
 
 #define RX_DELAY_DELETE_TIMEOUT 20
 
+#define FCH_EVT_VENDOR_UNIQUE_VPORT_DOWN  1
+
 #endif	/* QLA_EDIF_BSG_H */

drivers/scsi/qla2xxx/qla_mid.c

@@ -166,9 +166,13 @@ qla24xx_disable_vp(scsi_qla_host_t *vha)
 	int ret = QLA_SUCCESS;
 	fc_port_t *fcport;
 
-	if (vha->hw->flags.edif_enabled)
+	if (vha->hw->flags.edif_enabled) {
+		if (DBELL_ACTIVE(vha))
+			qla2x00_post_aen_work(vha, FCH_EVT_VENDOR_UNIQUE,
+			    FCH_EVT_VENDOR_UNIQUE_VPORT_DOWN);
 		/* delete sessions and flush sa_indexes */
 		qla2x00_wait_for_sess_deletion(vha);
+	}
 
 	if (vha->hw->flags.fw_started)
 		ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);