scsi: lpfc: Add MDS Diagnostic support.
Added code to support Cisco MDS loopback diagnostic. The diagnostics run
various loopbacks including one which loops-back frame through the
driver.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 9f6c7e7..9add947 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -4540,6 +4540,19 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
pmb->vport = phba->pport;
if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
+ phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
+
+ switch (phba->sli4_hba.link_state.status) {
+ case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
+ phba->link_flag |= LS_MDS_LINK_DOWN;
+ break;
+ case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
+ phba->link_flag |= LS_MDS_LOOPBACK;
+ break;
+ default:
+ break;
+ }
+
/* Parse and translate status field */
mb = &pmb->u.mb;
mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,