scsi: lpfc: Add MDS driver loopback diagnostics support
Added code to support driver loopback with MDS Diagnostics. This style of
diagnostics passes frames from the fabric to the driver who then echo them
back out the link. SEND_FRAME WQEs are used to transmit the frames. Added
the SOF and EOF field location definitions for use by SEND_FRAME.
Also ensure that enable_mds_diags is a RW parameter.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 0a8caa1..bd7a72f 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -5912,7 +5912,7 @@ lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val)
* 1 = MDS Diagnostics enabled
* Value range is [0,1]. Default value is 0.
*/
-LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
+LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics");
/*
* lpfc_ras_fwlog_buffsize: Firmware logging host buffer size