[SCSI] libfc: Register Symbolic Node Name (RSNN_NN)

Register the fc_host symbolic name as the symbolic node name
with the fabric name server.

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h
index ad13cb1..89981af 100644
--- a/include/scsi/fc_encode.h
+++ b/include/scsi/fc_encode.h
@@ -33,6 +33,7 @@
 		struct fc_ns_rn_id  rn;
 		struct fc_ns_rft rft;
 		struct fc_ns_fid fid;
+		struct fc_ns_rsnn snn;
 	} payload;
 };
 
@@ -136,6 +137,15 @@
 		put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
 		break;
 
+	case FC_NS_RSNN_NN:
+		ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn));
+		put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn);
+		strncpy(ct->payload.snn.fr_name,
+			fc_host_symbolic_name(lport->host), 255);
+		ct->payload.snn.fr_name_len =
+			strnlen(ct->payload.snn.fr_name, 255);
+		break;
+
 	default:
 		return -EINVAL;
 	}