[SCSI] libfc: Register Symbolic Port Name (RSPN_ID)

Register the fc_host symbolic name as the symbolic port 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>

3 files changed, 22 insertions, 0 deletions

diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h
index fa8283056325..3fd59a2cb81f 100644
--- a/include/scsi/fc/fc_ns.h
+++ b/include/scsi/fc/fc_ns.h
@@ -47,6 +47,7 @@ enum fc_ns_req {
         FC_NS_RFT_ID =  0x0217,         /* reg FC4 type for ID */
         FC_NS_RPN_ID =  0x0212,         /* reg port name for ID */
         FC_NS_RNN_ID =  0x0213,         /* reg node name for ID */
+        FC_NS_RSPN_ID = 0x0218,         /* reg symbolic port name */
         FC_NS_RSNN_NN = 0x0239,         /* reg symbolic node name */
 };
 
@@ -166,4 +167,13 @@ struct fc_ns_rsnn {
         char            fr_name[];
 } __attribute__((__packed__));
 
+/*
+ * RSPN_ID request - register symbolic port name
+ */
+struct fc_ns_rspn {
+        struct fc_ns_fid fr_fid;        /* port ID object */
+        __u8            fr_name_len;
+        char            fr_name[];
+} __attribute__((__packed__));
+
 #endif /* _FC_NS_H_ */
diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h
index 89981afba72d..9afcbb94ec30 100644
--- a/include/scsi/fc_encode.h
+++ b/include/scsi/fc_encode.h
@@ -34,6 +34,7 @@ struct fc_ct_req {
                 struct fc_ns_rft rft;
                 struct fc_ns_fid fid;
                 struct fc_ns_rsnn snn;
+                struct fc_ns_rspn spn;
         } payload;
 };
 
@@ -137,6 +138,16 @@ static inline int fc_ct_fill(struct fc_lport *lport,
                 put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
                 break;
 
+        case FC_NS_RSPN_ID:
+                ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn));
+                hton24(ct->payload.spn.fr_fid.fp_fid,
+                       fc_host_port_id(lport->host));
+                strncpy(ct->payload.spn.fr_name,
+                        fc_host_symbolic_name(lport->host), 255);
+                ct->payload.spn.fr_name_len =
+                        strnlen(ct->payload.spn.fr_name, 255);
+                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);
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 1a632069c402..8258edfa328c 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -63,6 +63,7 @@ enum fc_lport_state {
         LPORT_ST_DNS,
         LPORT_ST_RNN_ID,
         LPORT_ST_RSNN_NN,
+        LPORT_ST_RSPN_ID,
         LPORT_ST_RFT_ID,
         LPORT_ST_SCR,
         LPORT_ST_READY,