diff options
| -rw-r--r-- | drivers/scsi/fcoe/fcoe.c | 6 | ||||
| -rw-r--r-- | drivers/scsi/libfc/fc_lport.c | 91 | ||||
| -rw-r--r-- | include/scsi/fc/fc_ns.h | 10 | ||||
| -rw-r--r-- | include/scsi/fc_encode.h | 10 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 1 |
5 files changed, 115 insertions, 3 deletions
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index f23cdb38d5c..437eacf2732 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -591,9 +591,9 @@ static int fcoe_shost_config(struct fc_lport *lp, struct Scsi_Host *shost, if (!lp->vport) fc_host_max_npiv_vports(lp->host) = USHORT_MAX; - sprintf(fc_host_symbolic_name(lp->host), "%s v%s over %s", - FCOE_NAME, FCOE_VERSION, - fcoe_netdev(lp)->name); + snprintf(fc_host_symbolic_name(lp->host), FC_SYMBOLIC_NAME_SIZE, + "%s v%s over %s", FCOE_NAME, FCOE_VERSION, + fcoe_netdev(lp)->name); return 0; } diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 897b5a8487e..cc389c03f69 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -109,6 +109,7 @@ static void fc_lport_enter_reset(struct fc_lport *); static void fc_lport_enter_flogi(struct fc_lport *); static void fc_lport_enter_dns(struct fc_lport *); static void fc_lport_enter_rnn_id(struct fc_lport *); +static void fc_lport_enter_rsnn_nn(struct fc_lport *); static void fc_lport_enter_rft_id(struct fc_lport *); static void fc_lport_enter_scr(struct fc_lport *); static void fc_lport_enter_ready(struct fc_lport *); @@ -119,6 +120,7 @@ static const char *fc_lport_state_names[] = { [LPORT_ST_FLOGI] = "FLOGI", [LPORT_ST_DNS] = "dNS", [LPORT_ST_RNN_ID] = "RNN_ID", + [LPORT_ST_RSNN_NN] = "RSNN_NN", [LPORT_ST_RFT_ID] = "RFT_ID", [LPORT_ST_SCR] = "SCR", [LPORT_ST_READY] = "Ready", @@ -966,6 +968,7 @@ static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp) case LPORT_ST_READY: case LPORT_ST_RESET: case LPORT_ST_RNN_ID: + case LPORT_ST_RSNN_NN: case LPORT_ST_RFT_ID: case LPORT_ST_SCR: case LPORT_ST_DNS: @@ -1033,6 +1036,60 @@ err: } /** + * fc_lport_rsnn_nn_resp() - Handle response to Register Symbolic Node Name + * by Node Name (RSNN_NN) request + * @sp: current sequence in RSNN_NN exchange + * @fp: response frame + * @lp_arg: Fibre Channel host port instance + * + * Locking Note: This function will be called without the lport lock + * held, but it will lock, call an _enter_* function or fc_lport_error + * and then unlock the lport. + */ +static void fc_lport_rsnn_nn_resp(struct fc_seq *sp, struct fc_frame *fp, + void *lp_arg) +{ + struct fc_lport *lport = lp_arg; + struct fc_frame_header *fh; + struct fc_ct_hdr *ct; + + FC_LPORT_DBG(lport, "Received a RSNN_NN %s\n", fc_els_resp_type(fp)); + + if (fp == ERR_PTR(-FC_EX_CLOSED)) + return; + + mutex_lock(&lport->lp_mutex); + + if (lport->state != LPORT_ST_RSNN_NN) { + FC_LPORT_DBG(lport, "Received a RSNN_NN response, but in state " + "%s\n", fc_lport_state(lport)); + if (IS_ERR(fp)) + goto err; + goto out; + } + + if (IS_ERR(fp)) { + fc_lport_error(lport, fp); + goto err; + } + + fh = fc_frame_header_get(fp); + ct = fc_frame_payload_get(fp, sizeof(*ct)); + if (fh && ct && fh->fh_type == FC_TYPE_CT && + ct->ct_fs_type == FC_FST_DIR && + ct->ct_fs_subtype == FC_NS_SUBTYPE && + ntohs(ct->ct_cmd) == FC_FS_ACC) + fc_lport_enter_rsnn_nn(lport); + else + fc_lport_error(lport, fp); + +out: + fc_frame_free(fp); +err: + mutex_unlock(&lport->lp_mutex); +} + +/** * fc_lport_rnn_id_resp() - Handle response to Register Node * Name by ID (RNN_ID) request * @sp: current sequence in RNN_ID exchange @@ -1204,6 +1261,37 @@ static void fc_lport_enter_rft_id(struct fc_lport *lport) } /** + * fc_rport_enter_rsnn_nn() - Register symbolic node name with the name server + * @lport: Fibre Channel local port to register + * + * Locking Note: The lport lock is expected to be held before calling + * this routine. + */ +static void fc_lport_enter_rsnn_nn(struct fc_lport *lport) +{ + struct fc_frame *fp; + size_t len; + + FC_LPORT_DBG(lport, "Entered RSNN_NN state from %s state\n", + fc_lport_state(lport)); + + fc_lport_state_enter(lport, LPORT_ST_RSNN_NN); + + len = strnlen(fc_host_symbolic_name(lport->host), 255); + fp = fc_frame_alloc(lport, sizeof(struct fc_ct_hdr) + + sizeof(struct fc_ns_rsnn) + len); + if (!fp) { + fc_lport_error(lport, fp); + return; + } + + if (!lport->tt.elsct_send(lport, FC_FID_DIR_SERV, fp, FC_NS_RSNN_NN, + fc_lport_rsnn_nn_resp, + lport, lport->e_d_tov)) + fc_lport_error(lport, fp); +} + +/** * fc_rport_enter_rnn_id() - Register node name with the name server * @lport: Fibre Channel local port to register * @@ -1296,6 +1384,9 @@ static void fc_lport_timeout(struct work_struct *work) case LPORT_ST_RNN_ID: fc_lport_enter_rnn_id(lport); break; + case LPORT_ST_RSNN_NN: + fc_lport_enter_rsnn_nn(lport); + break; case LPORT_ST_RFT_ID: fc_lport_enter_rft_id(lport); break; diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h index 790d7b97d4b..fa828305632 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_RSNN_NN = 0x0239, /* reg symbolic node name */ }; /* @@ -156,4 +157,13 @@ struct fc_ns_rn_id { __be64 fr_wwn; /* node name or port name */ } __attribute__((__packed__)); +/* + * RSNN_NN request - register symbolic node name + */ +struct fc_ns_rsnn { + __be64 fr_wwn; /* node name */ + __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 ad13cb1c3ee..89981afba72 100644 --- a/include/scsi/fc_encode.h +++ b/include/scsi/fc_encode.h @@ -33,6 +33,7 @@ struct fc_ct_req { 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 @@ static inline int fc_ct_fill(struct fc_lport *lport, 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; } diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index 3d22dfd6720..1a632069c40 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -62,6 +62,7 @@ enum fc_lport_state { LPORT_ST_FLOGI, LPORT_ST_DNS, LPORT_ST_RNN_ID, + LPORT_ST_RSNN_NN, LPORT_ST_RFT_ID, LPORT_ST_SCR, LPORT_ST_READY, |