[SCSI] lpfc 8.1.2: Allow turning on internal loop-back mode

Allow turning on internal loop-back mode

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/lpfc/lpfc_attr.c

@@ -616,14 +616,15 @@ LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
 /*
 # lpfc_topology:  link topology for init link
 #            0x0  = attempt loop mode then point-to-point
+#            0x01 = internal loopback mode
 #            0x02 = attempt point-to-point mode only
 #            0x04 = attempt loop mode only
 #            0x06 = attempt point-to-point mode then loop
 # Set point-to-point mode if you want to run as an N_Port.
 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
 # Default value is 0.
 */
-LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology");
+LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
 
 /*
 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel

drivers/scsi/lpfc/lpfc_mbox.c

@@ -195,6 +195,9 @@ lpfc_init_link(struct lpfc_hba * phba,
 		mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
 		mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
 		break;
+	case FLAGS_LOCAL_LB:
+		mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB;
+		break;
 	}
 
 	/* NEW_FEATURE