[SCSI] bfa: Add support to register node symbolic name with name server

- Changes to register node symbolic name with name server on the fabric
  by sending CT commands RNN_ID and RSNN_NN.

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

7 files changed, 454 insertions, 2 deletions

diff --git a/drivers/scsi/bfa/bfa_defs_fcs.h b/drivers/scsi/bfa/bfa_defs_fcs.h
index 5871a1b6e2b..06f0a163ca3 100644
--- a/drivers/scsi/bfa/bfa_defs_fcs.h
+++ b/drivers/scsi/bfa/bfa_defs_fcs.h
@@ -93,6 +93,7 @@ struct bfa_lport_cfg_s {
         wwn_t          pwwn;       /*  port wwn */
         wwn_t          nwwn;       /*  node wwn */
         struct bfa_lport_symname_s  sym_name;   /*  vm port symbolic name */
+        struct bfa_lport_symname_s node_sym_name; /* Node symbolic name */
         enum bfa_lport_role roles;      /* FCS port roles */
         u32     rsvd;
         bfa_boolean_t   preboot_vp;  /*  vport created from PBC */
@@ -192,6 +193,18 @@ struct bfa_lport_stats_s {
         u32     ns_gidft_unknown_rsp;
         u32     ns_gidft_alloc_wait;
 
+        u32     ns_rnnid_sent;
+        u32     ns_rnnid_accepts;
+        u32     ns_rnnid_rsp_err;
+        u32     ns_rnnid_rejects;
+        u32     ns_rnnid_alloc_wait;
+
+        u32     ns_rsnn_nn_sent;
+        u32     ns_rsnn_nn_accepts;
+        u32     ns_rsnn_nn_rsp_err;
+        u32     ns_rsnn_nn_rejects;
+        u32     ns_rsnn_nn_alloc_wait;
+
         /*
          * Mgmt Server stats
          */
diff --git a/drivers/scsi/bfa/bfa_fc.h b/drivers/scsi/bfa/bfa_fc.h
index 8d0b88f67a3..e0beb4d7e26 100644
--- a/drivers/scsi/bfa/bfa_fc.h
+++ b/drivers/scsi/bfa/bfa_fc.h
@@ -1279,6 +1279,7 @@ enum {
         GS_GSPN_ID      = 0x0118,       /* Get symbolic PN on ID */
         GS_RFT_ID       = 0x0217,       /* Register fc4type on ID */
         GS_RSPN_ID      = 0x0218,       /* Register symbolic PN on ID */
+        GS_RSNN_NN      = 0x0239,       /* Register symbolic NN on NN */
         GS_RPN_ID       = 0x0212,       /* Register port name */
         GS_RNN_ID       = 0x0213,       /* Register node name */
         GS_RCS_ID       = 0x0214,       /* Register class of service */
@@ -1357,6 +1358,15 @@ struct fcgs_rspnid_req_s {
 };
 
 /*
+ * RSNN_NN
+ */
+struct fcgs_rsnn_nn_req_s {
+        wwn_t   node_name;      /* Node name */
+        u8      snn_len;        /* symbolic node name length */
+        u8      snn[256];       /* symbolic node name */
+};
+
+/*
  * RPN_ID
  */
 struct fcgs_rpnid_req_s {
diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c
index 17b59b8b564..273cee90b3b 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.c
+++ b/drivers/scsi/bfa/bfa_fcbuild.c
@@ -1252,6 +1252,27 @@ fc_rspnid_build(struct fchs_s *fchs, void *pyld, u32 s_id, u16 ox_id,
 }
 
 u16
+fc_rsnn_nn_build(struct fchs_s *fchs, void *pyld, u32 s_id,
+                        wwn_t node_name, u8 *name)
+{
+        struct ct_hdr_s *cthdr = (struct ct_hdr_s *) pyld;
+        struct fcgs_rsnn_nn_req_s *rsnn_nn =
+                (struct fcgs_rsnn_nn_req_s *) (cthdr + 1);
+        u32     d_id = bfa_hton3b(FC_NAME_SERVER);
+
+        fc_gs_fchdr_build(fchs, d_id, s_id, 0);
+        fc_gs_cthdr_build(cthdr, s_id, GS_RSNN_NN);
+
+        memset(rsnn_nn, 0, sizeof(struct fcgs_rsnn_nn_req_s));
+
+        rsnn_nn->node_name = node_name;
+        rsnn_nn->snn_len = (u8) strlen((char *)name);
+        strncpy((char *)rsnn_nn->snn, (char *)name, rsnn_nn->snn_len);
+
+        return sizeof(struct fcgs_rsnn_nn_req_s) + sizeof(struct ct_hdr_s);
+}
+
+u16
 fc_gid_ft_build(struct fchs_s *fchs, void *pyld, u32 s_id, u8 fc4_type)
 {
 
diff --git a/drivers/scsi/bfa/bfa_fcbuild.h b/drivers/scsi/bfa/bfa_fcbuild.h
index 42cd9d4da69..03c753d1e54 100644
--- a/drivers/scsi/bfa/bfa_fcbuild.h
+++ b/drivers/scsi/bfa/bfa_fcbuild.h
@@ -166,6 +166,8 @@ enum fc_parse_status fc_rrq_rsp_parse(struct fchs_s *buf, int len);
 
 u16        fc_rspnid_build(struct fchs_s *fchs, void *pld, u32 s_id,
                                 u16 ox_id, u8 *name);
+u16     fc_rsnn_nn_build(struct fchs_s *fchs, void *pld, u32 s_id,
+                                wwn_t node_name, u8 *name);
 
 u16        fc_rftid_build(struct fchs_s *fchs, void *pld, u32 s_id,
                                u16 ox_id, enum bfa_lport_role role);
diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 671a1a227f9..2139592aca5 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -165,6 +165,7 @@ bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
         fcs->driver_info = *driver_info;
 
         bfa_fcs_fabric_psymb_init(&fcs->fabric);
+        bfa_fcs_fabric_nsymb_init(&fcs->fabric);
 }
 
 /*
@@ -843,6 +844,44 @@ bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
 }
 
 /*
+ * Node Symbolic Name Creation for base port and all vports
+ */
+void
+bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
+{
+        struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
+        char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
+        struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
+
+        bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
+
+        /* Model name/number */
+        strncpy((char *)&port_cfg->node_sym_name, model,
+                BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
+        strncat((char *)&port_cfg->node_sym_name,
+                        BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+                        sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+        /* Driver Version */
+        strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
+                BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
+        strncat((char *)&port_cfg->node_sym_name,
+                        BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+                        sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+        /* Host machine name */
+        strncat((char *)&port_cfg->node_sym_name,
+                (char *)driver_info->host_machine_name,
+                BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
+        strncat((char *)&port_cfg->node_sym_name,
+                        BFA_FCS_PORT_SYMBNAME_SEPARATOR,
+                        sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
+
+        /* null terminate */
+        port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
+}
+
+/*
  * bfa lps login completion callback
  */
 void
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index b64ca35bf6f..2b35f1b6e4f 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -62,6 +62,7 @@ struct bfa_fcs_s;
 #define N2N_LOCAL_PID       0x010000
 #define N2N_REMOTE_PID          0x020000
 #define BFA_FCS_RETRY_TIMEOUT 2000
+#define BFA_FCS_MAX_NS_RETRIES 5
 #define BFA_FCS_PID_IS_WKA(pid)  ((bfa_ntoh3b(pid) > 0xFFF000) ?  1 : 0)
 
 
@@ -72,6 +73,8 @@ struct bfa_fcs_lport_ns_s {
         struct bfa_fcs_lport_s *port;   /*  parent port */
         struct bfa_fcxp_s *fcxp;
         struct bfa_fcxp_wqe_s fcxp_wqe;
+        u8      num_rnnid_retries;
+        u8      num_rsnn_nn_retries;
 };
 
 
@@ -265,6 +268,7 @@ struct bfa_fcs_fabric_s;
 #define bfa_fcs_lport_get_pwwn(_lport)  ((_lport)->port_cfg.pwwn)
 #define bfa_fcs_lport_get_nwwn(_lport)  ((_lport)->port_cfg.nwwn)
 #define bfa_fcs_lport_get_psym_name(_lport)     ((_lport)->port_cfg.sym_name)
+#define bfa_fcs_lport_get_nsym_name(_lport) ((_lport)->port_cfg.node_sym_name)
 #define bfa_fcs_lport_is_initiator(_lport)                      \
         ((_lport)->port_cfg.roles & BFA_LPORT_ROLE_FCP_IM)
 #define bfa_fcs_lport_get_nrports(_lport)       \
@@ -780,6 +784,7 @@ void bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs);
 void bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric,
                 struct fchs_s *fchs, u16 len);
 void    bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric);
+void    bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric);
 void bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
                wwn_t fabric_name);
 u16 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric);
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 3c9bde9a808..d4a4d534843 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -3229,6 +3229,10 @@ static void     bfa_fcs_lport_ns_send_rff_id(void *ns_cbarg,
                                             struct bfa_fcxp_s *fcxp_alloced);
 static void     bfa_fcs_lport_ns_send_gid_ft(void *ns_cbarg,
                                             struct bfa_fcxp_s *fcxp_alloced);
+static void     bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg,
+                                        struct bfa_fcxp_s *fcxp_alloced);
+static void     bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg,
+                                        struct bfa_fcxp_s *fcxp_alloced);
 static void     bfa_fcs_lport_ns_timeout(void *arg);
 static void     bfa_fcs_lport_ns_plogi_response(void *fcsarg,
                                                struct bfa_fcxp_s *fcxp,
@@ -3265,6 +3269,20 @@ static void     bfa_fcs_lport_ns_gid_ft_response(void *fcsarg,
                                                 u32 rsp_len,
                                                 u32 resid_len,
                                                 struct fchs_s *rsp_fchs);
+static void     bfa_fcs_lport_ns_rnn_id_response(void *fcsarg,
+                                                struct bfa_fcxp_s *fcxp,
+                                                void *cbarg,
+                                                bfa_status_t req_status,
+                                                u32 rsp_len,
+                                                u32 resid_len,
+                                                struct fchs_s *rsp_fchs);
+static void     bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg,
+                                                struct bfa_fcxp_s *fcxp,
+                                                void *cbarg,
+                                                bfa_status_t req_status,
+                                                u32 rsp_len,
+                                                u32 resid_len,
+                                                struct fchs_s *rsp_fchs);
 static void     bfa_fcs_lport_ns_process_gidft_pids(
                                 struct bfa_fcs_lport_s *port,
                                 u32 *pid_buf, u32 n_pids);
@@ -3289,6 +3307,8 @@ enum vport_ns_event {
         NSSM_EVENT_RFTID_SENT = 9,
         NSSM_EVENT_RFFID_SENT = 10,
         NSSM_EVENT_GIDFT_SENT = 11,
+        NSSM_EVENT_RNNID_SENT = 12,
+        NSSM_EVENT_RSNN_NN_SENT = 13,
 };
 
 static void     bfa_fcs_lport_ns_sm_offline(struct bfa_fcs_lport_ns_s *ns,
@@ -3329,6 +3349,21 @@ static void     bfa_fcs_lport_ns_sm_gid_ft_retry(struct bfa_fcs_lport_ns_s *ns,
                                                 enum vport_ns_event event);
 static void     bfa_fcs_lport_ns_sm_online(struct bfa_fcs_lport_ns_s *ns,
                                           enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_sending_rnn_id(
+                                        struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
+                                                enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_sending_rsnn_nn(
+                                        struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+                                                enum vport_ns_event event);
+static void     bfa_fcs_lport_ns_sm_rsnn_nn_retry(
+                                        struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event);
 /*
  *      Start in offline state - awaiting linkup
  */
@@ -3396,8 +3431,9 @@ bfa_fcs_lport_ns_sm_plogi(struct bfa_fcs_lport_ns_s *ns,
                 break;
 
         case NSSM_EVENT_RSP_OK:
-                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
-                bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
+                ns->num_rnnid_retries = 0;
+                bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
                 break;
 
         case NSSM_EVENT_PORT_OFFLINE:
@@ -3437,6 +3473,176 @@ bfa_fcs_lport_ns_sm_plogi_retry(struct bfa_fcs_lport_ns_s *ns,
 }
 
 static void
+bfa_fcs_lport_ns_sm_sending_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_RNNID_SENT:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id);
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+                                                &ns->fcxp_wqe);
+                break;
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
+bfa_fcs_lport_ns_sm_rnn_id(struct bfa_fcs_lport_ns_s *ns,
+                                enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_RSP_OK:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
+                ns->num_rnnid_retries = 0;
+                ns->num_rsnn_nn_retries = 0;
+                bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
+                break;
+
+        case NSSM_EVENT_RSP_ERROR:
+                if (ns->num_rnnid_retries < BFA_FCS_MAX_NS_RETRIES) {
+                        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rnn_id_retry);
+                        ns->port->stats.ns_retries++;
+                        ns->num_rnnid_retries++;
+                        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+                                &ns->timer, bfa_fcs_lport_ns_timeout, ns,
+                                BFA_FCS_RETRY_TIMEOUT);
+                } else {
+                        bfa_sm_set_state(ns,
+                                bfa_fcs_lport_ns_sm_sending_rspn_id);
+                        bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+                }
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_fcxp_discard(ns->fcxp);
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                break;
+
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
+bfa_fcs_lport_ns_sm_rnn_id_retry(struct bfa_fcs_lport_ns_s *ns,
+                                enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_TIMEOUT:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rnn_id);
+                bfa_fcs_lport_ns_send_rnn_id(ns, NULL);
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                bfa_timer_stop(&ns->timer);
+                break;
+
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
+bfa_fcs_lport_ns_sm_sending_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_RSNN_NN_SENT:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn);
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+                        &ns->fcxp_wqe);
+                break;
+
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
+bfa_fcs_lport_ns_sm_rsnn_nn(struct bfa_fcs_lport_ns_s *ns,
+                                enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_RSP_OK:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rspn_id);
+                ns->num_rsnn_nn_retries = 0;
+                bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+                break;
+
+        case NSSM_EVENT_RSP_ERROR:
+                if (ns->num_rsnn_nn_retries < BFA_FCS_MAX_NS_RETRIES) {
+                        bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_rsnn_nn_retry);
+                        ns->port->stats.ns_retries++;
+                        ns->num_rsnn_nn_retries++;
+                        bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
+                                        &ns->timer, bfa_fcs_lport_ns_timeout,
+                                        ns, BFA_FCS_RETRY_TIMEOUT);
+                } else {
+                        bfa_sm_set_state(ns,
+                                bfa_fcs_lport_ns_sm_sending_rspn_id);
+                        bfa_fcs_lport_ns_send_rspn_id(ns, NULL);
+                }
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                bfa_fcxp_discard(ns->fcxp);
+                break;
+
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
+bfa_fcs_lport_ns_sm_rsnn_nn_retry(struct bfa_fcs_lport_ns_s *ns,
+                                        enum vport_ns_event event)
+{
+        bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
+        bfa_trc(ns->port->fcs, event);
+
+        switch (event) {
+        case NSSM_EVENT_TIMEOUT:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_sending_rsnn_nn);
+                bfa_fcs_lport_ns_send_rsnn_nn(ns, NULL);
+                break;
+
+        case NSSM_EVENT_PORT_OFFLINE:
+                bfa_sm_set_state(ns, bfa_fcs_lport_ns_sm_offline);
+                bfa_timer_stop(&ns->timer);
+                break;
+
+        default:
+                bfa_sm_fault(ns->port->fcs, event);
+        }
+}
+
+static void
 bfa_fcs_lport_ns_sm_sending_rspn_id(struct bfa_fcs_lport_ns_s *ns,
                                    enum vport_ns_event event)
 {
@@ -3917,6 +4123,162 @@ bfa_fcs_lport_ns_plogi_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
 }
 
 /*
+ * Register node name for port_id
+ */
+static void
+bfa_fcs_lport_ns_send_rnn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+        struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
+        struct bfa_fcs_lport_s *port = ns->port;
+        struct fchs_s  fchs;
+        int     len;
+        struct bfa_fcxp_s *fcxp;
+
+        bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+        fcxp = fcxp_alloced ? fcxp_alloced :
+                        bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
+        if (!fcxp) {
+                port->stats.ns_rnnid_alloc_wait++;
+                bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+                                bfa_fcs_lport_ns_send_rnn_id, ns, BFA_TRUE);
+                return;
+        }
+
+        ns->fcxp = fcxp;
+
+        len = fc_rnnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+                                bfa_fcs_lport_get_fcid(port),
+                                bfa_fcs_lport_get_fcid(port),
+                                bfa_fcs_lport_get_nwwn(port));
+
+        bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+                          FC_CLASS_3, len, &fchs,
+                          bfa_fcs_lport_ns_rnn_id_response, (void *)ns,
+                          FC_MAX_PDUSZ, FC_FCCT_TOV);
+
+        port->stats.ns_rnnid_sent++;
+        bfa_sm_send_event(ns, NSSM_EVENT_RNNID_SENT);
+}
+
+static void
+bfa_fcs_lport_ns_rnn_id_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
+                                void *cbarg, bfa_status_t req_status,
+                                u32 rsp_len, u32 resid_len,
+                                struct fchs_s *rsp_fchs)
+
+{
+        struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
+        struct bfa_fcs_lport_s *port = ns->port;
+        struct ct_hdr_s *cthdr = NULL;
+
+        bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+        /*
+         * Sanity Checks
+         */
+        if (req_status != BFA_STATUS_OK) {
+                bfa_trc(port->fcs, req_status);
+                port->stats.ns_rnnid_rsp_err++;
+                bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+                return;
+        }
+
+        cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
+        cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
+
+        if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
+                port->stats.ns_rnnid_accepts++;
+                bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
+                return;
+        }
+
+        port->stats.ns_rnnid_rejects++;
+        bfa_trc(port->fcs, cthdr->reason_code);
+        bfa_trc(port->fcs, cthdr->exp_code);
+        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+}
+
+/*
+ * Register the symbolic node name for a given node name.
+ */
+static void
+bfa_fcs_lport_ns_send_rsnn_nn(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+        struct bfa_fcs_lport_ns_s *ns = ns_cbarg;
+        struct bfa_fcs_lport_s *port = ns->port;
+        struct fchs_s  fchs;
+        int     len;
+        struct bfa_fcxp_s *fcxp;
+        u8 *nsymbl;
+
+        bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+        fcxp = fcxp_alloced ? fcxp_alloced :
+                        bfa_fcs_fcxp_alloc(port->fcs, BFA_TRUE);
+        if (!fcxp) {
+                port->stats.ns_rsnn_nn_alloc_wait++;
+                bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+                                bfa_fcs_lport_ns_send_rsnn_nn, ns, BFA_TRUE);
+                return;
+        }
+        ns->fcxp = fcxp;
+
+        nsymbl = (u8 *) &(bfa_fcs_lport_get_nsym_name(
+                                        bfa_fcs_get_base_port(port->fcs)));
+
+        len = fc_rsnn_nn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+                                bfa_fcs_lport_get_fcid(port),
+                                bfa_fcs_lport_get_nwwn(port), nsymbl);
+
+        bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+                          FC_CLASS_3, len, &fchs,
+                          bfa_fcs_lport_ns_rsnn_nn_response, (void *)ns,
+                          FC_MAX_PDUSZ, FC_FCCT_TOV);
+
+        port->stats.ns_rsnn_nn_sent++;
+
+        bfa_sm_send_event(ns, NSSM_EVENT_RSNN_NN_SENT);
+}
+
+static void
+bfa_fcs_lport_ns_rsnn_nn_response(void *fcsarg, struct bfa_fcxp_s *fcxp,
+                                void *cbarg, bfa_status_t req_status,
+                                u32 rsp_len, u32 resid_len,
+                                struct fchs_s *rsp_fchs)
+{
+        struct bfa_fcs_lport_ns_s *ns = (struct bfa_fcs_lport_ns_s *) cbarg;
+        struct bfa_fcs_lport_s *port = ns->port;
+        struct ct_hdr_s *cthdr = NULL;
+
+        bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+        /*
+         * Sanity Checks
+         */
+        if (req_status != BFA_STATUS_OK) {
+                bfa_trc(port->fcs, req_status);
+                port->stats.ns_rsnn_nn_rsp_err++;
+                bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+                return;
+        }
+
+        cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
+        cthdr->cmd_rsp_code = be16_to_cpu(cthdr->cmd_rsp_code);
+
+        if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) {
+                port->stats.ns_rsnn_nn_accepts++;
+                bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
+                return;
+        }
+
+        port->stats.ns_rsnn_nn_rejects++;
+        bfa_trc(port->fcs, cthdr->reason_code);
+        bfa_trc(port->fcs, cthdr->exp_code);
+        bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
+}
+
+/*
  * Register the symbolic port name.
  */
 static void