drivers/scsi/libfc/fc_encode.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright(c) 2008 Intel Corporation. All rights reserved.
   4  *
   5  * Maintained at www.Open-FCoE.org
   6  */
   7
   8 #ifndef _FC_ENCODE_H_
   9 #define _FC_ENCODE_H_
  10 #include <linux/unaligned.h>
  11 #include <linux/utsname.h>
  12 #include <scsi/fc/fc_ms.h>
  13
  14 /*
  15  * F_CTL values for simple requests and responses.
  16  */
  17 #define FC_FCTL_REQ     (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)
  18 #define FC_FCTL_RESP    (FC_FC_EX_CTX | FC_FC_LAST_SEQ | \
  19                         FC_FC_END_SEQ | FC_FC_SEQ_INIT)
  20
  21 struct fc_ns_rft {
  22         struct fc_ns_fid fid;   /* port ID object */
  23         struct fc_ns_fts fts;   /* FC4-types object */
  24 };
  25
  26 struct fc_ct_req {
  27         struct fc_ct_hdr hdr;
  28         union {
  29                 struct fc_ns_gid_ft gid;
  30                 struct fc_ns_rn_id  rn;
  31                 struct fc_ns_rft rft;
  32                 struct fc_ns_rff_id rff;
  33                 struct fc_ns_fid fid;
  34                 struct fc_ns_rsnn snn;
  35                 struct fc_ns_rspn spn;
  36                 struct fc_fdmi_rhba rhba;
  37                 struct fc_fdmi_rpa  rpa;
  38                 struct fc_fdmi_dprt dprt;
  39                 struct fc_fdmi_dhba dhba;
  40         } payload;
  41 };
  42
  43 /**
  44  * fc_adisc_fill() - Fill in adisc request frame
  45  * @lport: local port.
  46  * @fp: fc frame where payload will be placed.
  47  */
  48 static inline void fc_adisc_fill(struct fc_lport *lport, struct fc_frame *fp)
  49 {
  50         struct fc_els_adisc *adisc;
  51
  52         adisc = fc_frame_payload_get(fp, sizeof(*adisc));
  53         memset(adisc, 0, sizeof(*adisc));
  54         adisc->adisc_cmd = ELS_ADISC;
  55         put_unaligned_be64(lport->wwpn, &adisc->adisc_wwpn);
  56         put_unaligned_be64(lport->wwnn, &adisc->adisc_wwnn);
  57         hton24(adisc->adisc_port_id, lport->port_id);
  58 }
  59
  60 /**
  61  * fc_ct_hdr_fill- fills ct header and reset ct payload
  62  * returns pointer to ct request.
  63  */
  64 static inline struct fc_ct_req *fc_ct_hdr_fill(const struct fc_frame *fp,
  65                                                unsigned int op, size_t req_size,
  66                                                enum fc_ct_fs_type fs_type,
  67                                                u8 subtype)
  68 {
  69         struct fc_ct_req *ct;
  70         size_t ct_plen;
  71
  72         ct_plen  = sizeof(struct fc_ct_hdr) + req_size;
  73         ct = fc_frame_payload_get(fp, ct_plen);
  74         memset(ct, 0, ct_plen);
  75         ct->hdr.ct_rev = FC_CT_REV;
  76         ct->hdr.ct_fs_type = fs_type;
  77         ct->hdr.ct_fs_subtype = subtype;
  78         ct->hdr.ct_cmd = htons((u16) op);
  79         return ct;
  80 }
  81
  82 /**
  83  * fc_ct_ns_fill() - Fill in a name service request frame
  84  * @lport: local port.
  85  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
  86  * @fp: frame to contain payload.
  87  * @op: CT opcode.
  88  * @r_ctl: pointer to FC header R_CTL.
  89  * @fh_type: pointer to FC-4 type.
  90  */
  91 static inline int fc_ct_ns_fill(struct fc_lport *lport,
  92                       u32 fc_id, struct fc_frame *fp,
  93                       unsigned int op, enum fc_rctl *r_ctl,
  94                       enum fc_fh_type *fh_type)
  95 {
  96         struct fc_ct_req *ct;
  97         size_t len;
  98
  99         switch (op) {
 100         case FC_NS_GPN_FT:
 101                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_gid_ft),
 102                                     FC_FST_DIR, FC_NS_SUBTYPE);
 103                 ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
 104                 break;
 105
 106         case FC_NS_GPN_ID:
 107                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_fid),
 108                                     FC_FST_DIR, FC_NS_SUBTYPE);
 109                 ct->payload.gid.fn_fc4_type = FC_TYPE_FCP;
 110                 hton24(ct->payload.fid.fp_fid, fc_id);
 111                 break;
 112
 113         case FC_NS_RFT_ID:
 114                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rft),
 115                                     FC_FST_DIR, FC_NS_SUBTYPE);
 116                 hton24(ct->payload.rft.fid.fp_fid, lport->port_id);
 117                 ct->payload.rft.fts = lport->fcts;
 118                 break;
 119
 120         case FC_NS_RFF_ID:
 121                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rff_id),
 122                                     FC_FST_DIR, FC_NS_SUBTYPE);
 123                 hton24(ct->payload.rff.fr_fid.fp_fid, lport->port_id);
 124                 ct->payload.rff.fr_type = FC_TYPE_FCP;
 125                 if (lport->service_params & FCP_SPPF_INIT_FCN)
 126                         ct->payload.rff.fr_feat = FCP_FEAT_INIT;
 127                 if (lport->service_params & FCP_SPPF_TARG_FCN)
 128                         ct->payload.rff.fr_feat |= FCP_FEAT_TARG;
 129                 break;
 130
 131         case FC_NS_RNN_ID:
 132                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rn_id),
 133                                     FC_FST_DIR, FC_NS_SUBTYPE);
 134                 hton24(ct->payload.rn.fr_fid.fp_fid, lport->port_id);
 135                 put_unaligned_be64(lport->wwnn, &ct->payload.rn.fr_wwn);
 136                 break;
 137
 138         case FC_NS_RSPN_ID:
 139                 len = strnlen(fc_host_symbolic_name(lport->host),
 140                               FC_SYMBOLIC_NAME_SIZE);
 141                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rspn) + len,
 142                                     FC_FST_DIR, FC_NS_SUBTYPE);
 143                 hton24(ct->payload.spn.fr_fid.fp_fid, lport->port_id);
 144                 memcpy(ct->payload.spn.fr_name,
 145                        fc_host_symbolic_name(lport->host), len);
 146                 ct->payload.spn.fr_name_len = len;
 147                 break;
 148
 149         case FC_NS_RSNN_NN:
 150                 len = strnlen(fc_host_symbolic_name(lport->host),
 151                               FC_SYMBOLIC_NAME_SIZE);
 152                 ct = fc_ct_hdr_fill(fp, op, sizeof(struct fc_ns_rsnn) + len,
 153                                     FC_FST_DIR, FC_NS_SUBTYPE);
 154                 put_unaligned_be64(lport->wwnn, &ct->payload.snn.fr_wwn);
 155                 memcpy(ct->payload.snn.fr_name,
 156                        fc_host_symbolic_name(lport->host), len);
 157                 ct->payload.snn.fr_name_len = len;
 158                 break;
 159
 160         default:
 161                 return -EINVAL;
 162         }
 163         *r_ctl = FC_RCTL_DD_UNSOL_CTL;
 164         *fh_type = FC_TYPE_CT;
 165         return 0;
 166 }
 167
 168 static inline void fc_ct_ms_fill_attr(struct fc_fdmi_attr_entry *entry,
 169                                     const char *in, size_t len)
 170 {
 171         int copied;
 172
 173         copied = strscpy(entry->value, in, len);
 174         if (copied > 0 && copied + 1 < len)
 175                 memset(entry->value + copied + 1, 0, len - copied - 1);
 176 }
 177
 178 /**
 179  * fc_ct_ms_fill() - Fill in a mgmt service request frame
 180  * @lport: local port.
 181  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
 182  * @fp: frame to contain payload.
 183  * @op: CT opcode.
 184  * @r_ctl: pointer to FC header R_CTL.
 185  * @fh_type: pointer to FC-4 type.
 186  */
 187 static inline int fc_ct_ms_fill(struct fc_lport *lport,
 188                       u32 fc_id, struct fc_frame *fp,
 189                       unsigned int op, enum fc_rctl *r_ctl,
 190                       enum fc_fh_type *fh_type)
 191 {
 192         struct fc_ct_req *ct;
 193         size_t len;
 194         struct fc_fdmi_attr_entry *entry;
 195         struct fs_fdmi_attrs *hba_attrs;
 196         int numattrs = 0;
 197         struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
 198
 199         switch (op) {
 200         case FC_FDMI_RHBA:
 201                 numattrs = 11;
 202                 len = sizeof(struct fc_fdmi_rhba);
 203                 len -= sizeof(struct fc_fdmi_attr_entry);
 204                 len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
 205                 len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
 206                 len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
 207                 len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
 208                 len += FC_FDMI_HBA_ATTR_MODEL_LEN;
 209                 len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
 210                 len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
 211                 len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
 212                 len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
 213                 len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
 214                 len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
 215                 len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
 216
 217                 if (fc_host->fdmi_version == FDMI_V2) {
 218                         numattrs += 7;
 219                         len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
 220                         len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
 221                         len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
 222                         len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
 223                         len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
 224                         len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
 225                         len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
 226                 }
 227
 228                 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
 229                                 FC_FDMI_SUBTYPE);
 230
 231                 /* HBA Identifier */
 232                 put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id);
 233                 /* Number of Ports - always 1 */
 234                 put_unaligned_be32(1, &ct->payload.rhba.port.numport);
 235                 /* Port Name */
 236                 put_unaligned_be64(lport->wwpn,
 237                                    &ct->payload.rhba.port.port[0].portname);
 238
 239                 /* HBA Attributes */
 240                 put_unaligned_be32(numattrs,
 241                                    &ct->payload.rhba.hba_attrs.numattrs);
 242                 hba_attrs = &ct->payload.rhba.hba_attrs;
 243                 entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
 244                 /* NodeName*/
 245                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 246                 len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
 247                 put_unaligned_be16(FC_FDMI_HBA_ATTR_NODENAME,
 248                                    &entry->type);
 249                 put_unaligned_be16(len, &entry->len);
 250                 put_unaligned_be64(lport->wwnn,
 251                                    (__be64 *)&entry->value);
 252
 253                 /* Manufacturer */
 254                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 255                                         FC_FDMI_HBA_ATTR_NODENAME_LEN);
 256                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 257                 len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
 258                 put_unaligned_be16(FC_FDMI_HBA_ATTR_MANUFACTURER,
 259                                    &entry->type);
 260                 put_unaligned_be16(len, &entry->len);
 261                 fc_ct_ms_fill_attr(entry,
 262                         fc_host_manufacturer(lport->host),
 263                         FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
 264
 265                 /* SerialNumber */
 266                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 267                                         FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
 268                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 269                 len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
 270                 put_unaligned_be16(FC_FDMI_HBA_ATTR_SERIALNUMBER,
 271                                    &entry->type);
 272                 put_unaligned_be16(len, &entry->len);
 273                 fc_ct_ms_fill_attr(entry,
 274                         fc_host_serial_number(lport->host),
 275                         FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
 276
 277                 /* Model */
 278                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 279                                         FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
 280                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 281                 len += FC_FDMI_HBA_ATTR_MODEL_LEN;
 282                 put_unaligned_be16(FC_FDMI_HBA_ATTR_MODEL,
 283                                    &entry->type);
 284                 put_unaligned_be16(len, &entry->len);
 285                 fc_ct_ms_fill_attr(entry,
 286                         fc_host_model(lport->host),
 287                         FC_FDMI_HBA_ATTR_MODEL_LEN);
 288
 289                 /* Model Description */
 290                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 291                                         FC_FDMI_HBA_ATTR_MODEL_LEN);
 292                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 293                 len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
 294                 put_unaligned_be16(FC_FDMI_HBA_ATTR_MODELDESCRIPTION,
 295                                    &entry->type);
 296                 put_unaligned_be16(len, &entry->len);
 297                 fc_ct_ms_fill_attr(entry,
 298                         fc_host_model_description(lport->host),
 299                         FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
 300
 301                 /* Hardware Version */
 302                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 303                                         FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
 304                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 305                 len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
 306                 put_unaligned_be16(FC_FDMI_HBA_ATTR_HARDWAREVERSION,
 307                                    &entry->type);
 308                 put_unaligned_be16(len, &entry->len);
 309                 fc_ct_ms_fill_attr(entry,
 310                         fc_host_hardware_version(lport->host),
 311                         FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
 312
 313                 /* Driver Version */
 314                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 315                                         FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
 316                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 317                 len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
 318                 put_unaligned_be16(FC_FDMI_HBA_ATTR_DRIVERVERSION,
 319                                    &entry->type);
 320                 put_unaligned_be16(len, &entry->len);
 321                 fc_ct_ms_fill_attr(entry,
 322                         fc_host_driver_version(lport->host),
 323                         FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
 324
 325                 /* OptionROM Version */
 326                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 327                                         FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
 328                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 329                 len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
 330                 put_unaligned_be16(FC_FDMI_HBA_ATTR_OPTIONROMVERSION,
 331                                    &entry->type);
 332                 put_unaligned_be16(len, &entry->len);
 333                 fc_ct_ms_fill_attr(entry,
 334                         "unknown",
 335                         FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
 336
 337                 /* Firmware Version */
 338                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 339                                         FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
 340                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 341                 len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
 342                 put_unaligned_be16(FC_FDMI_HBA_ATTR_FIRMWAREVERSION,
 343                                    &entry->type);
 344                 put_unaligned_be16(len, &entry->len);
 345                 fc_ct_ms_fill_attr(entry,
 346                         fc_host_firmware_version(lport->host),
 347                         FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
 348
 349                 /* OS Name and Version */
 350                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 351                                         FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
 352                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 353                 len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
 354                 put_unaligned_be16(FC_FDMI_HBA_ATTR_OSNAMEVERSION,
 355                                    &entry->type);
 356                 put_unaligned_be16(len, &entry->len);
 357                 snprintf((char *)&entry->value,
 358                         FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN,
 359                         "%s v%s",
 360                         init_utsname()->sysname,
 361                         init_utsname()->release);
 362
 363                 /* Max CT payload */
 364                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 365                                         FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN);
 366                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 367                 len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
 368                 put_unaligned_be16(FC_FDMI_HBA_ATTR_MAXCTPAYLOAD,
 369                                 &entry->type);
 370                 put_unaligned_be16(len, &entry->len);
 371                 put_unaligned_be32(fc_host_max_ct_payload(lport->host),
 372                                 &entry->value);
 373
 374                 if (fc_host->fdmi_version == FDMI_V2) {
 375                         /* Node symbolic name */
 376                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 377                                         FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN);
 378                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 379                         len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
 380                         put_unaligned_be16(FC_FDMI_HBA_ATTR_NODESYMBLNAME,
 381                                         &entry->type);
 382                         put_unaligned_be16(len, &entry->len);
 383                         fc_ct_ms_fill_attr(entry,
 384                                         fc_host_symbolic_name(lport->host),
 385                                         FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
 386
 387                         /* Vendor specific info */
 388                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 389                                         FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN);
 390                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 391                         len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
 392                         put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO,
 393                                         &entry->type);
 394                         put_unaligned_be16(len, &entry->len);
 395                         put_unaligned_be32(0,
 396                                         &entry->value);
 397
 398                         /* Number of ports */
 399                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 400                                         FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN);
 401                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 402                         len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
 403                         put_unaligned_be16(FC_FDMI_HBA_ATTR_NUMBEROFPORTS,
 404                                         &entry->type);
 405                         put_unaligned_be16(len, &entry->len);
 406                         put_unaligned_be32(fc_host_num_ports(lport->host),
 407                                         &entry->value);
 408
 409                         /* Fabric name */
 410                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 411                                         FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN);
 412                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 413                         len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
 414                         put_unaligned_be16(FC_FDMI_HBA_ATTR_FABRICNAME,
 415                                         &entry->type);
 416                         put_unaligned_be16(len, &entry->len);
 417                         put_unaligned_be64(fc_host_fabric_name(lport->host),
 418                                         &entry->value);
 419
 420                         /* BIOS version */
 421                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 422                                         FC_FDMI_HBA_ATTR_FABRICNAME_LEN);
 423                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 424                         len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
 425                         put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSVERSION,
 426                                         &entry->type);
 427                         put_unaligned_be16(len, &entry->len);
 428                         fc_ct_ms_fill_attr(entry,
 429                                         fc_host_bootbios_version(lport->host),
 430                                         FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
 431
 432                         /* BIOS state */
 433                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 434                                         FC_FDMI_HBA_ATTR_BIOSVERSION_LEN);
 435                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 436                         len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
 437                         put_unaligned_be16(FC_FDMI_HBA_ATTR_BIOSSTATE,
 438                                         &entry->type);
 439                         put_unaligned_be16(len, &entry->len);
 440                         put_unaligned_be32(fc_host_bootbios_state(lport->host),
 441                                         &entry->value);
 442
 443                         /* Vendor identifier  */
 444                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 445                                         FC_FDMI_HBA_ATTR_BIOSSTATE_LEN);
 446                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 447                         len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
 448                         put_unaligned_be16(FC_FDMI_HBA_ATTR_VENDORIDENTIFIER,
 449                                         &entry->type);
 450                         put_unaligned_be16(len, &entry->len);
 451                         fc_ct_ms_fill_attr(entry,
 452                                         fc_host_vendor_identifier(lport->host),
 453                                         FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN);
 454                 }
 455
 456                 break;
 457         case FC_FDMI_RPA:
 458                 numattrs = 6;
 459                 len = sizeof(struct fc_fdmi_rpa);
 460                 len -= sizeof(struct fc_fdmi_attr_entry);
 461                 len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
 462                 len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
 463                 len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
 464                 len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
 465                 len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
 466                 len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
 467                 len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
 468
 469
 470                 if (fc_host->fdmi_version == FDMI_V2) {
 471                         numattrs += 10;
 472
 473                         len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
 474                         len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
 475                         len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
 476                         len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
 477                         len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
 478                         len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
 479                         len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
 480                         len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
 481                         len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
 482                         len += FC_FDMI_PORT_ATTR_PORTID_LEN;
 483
 484                 }
 485
 486                 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
 487                                     FC_FDMI_SUBTYPE);
 488
 489                 /* Port Name */
 490                 put_unaligned_be64(lport->wwpn,
 491                                    &ct->payload.rpa.port.portname);
 492
 493                 /* Port Attributes */
 494                 put_unaligned_be32(numattrs,
 495                                    &ct->payload.rpa.hba_attrs.numattrs);
 496
 497                 hba_attrs = &ct->payload.rpa.hba_attrs;
 498                 entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
 499
 500                 /* FC4 types */
 501                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 502                 len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
 503                 put_unaligned_be16(FC_FDMI_PORT_ATTR_FC4TYPES,
 504                                    &entry->type);
 505                 put_unaligned_be16(len, &entry->len);
 506                 memcpy(&entry->value, fc_host_supported_fc4s(lport->host),
 507                        FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
 508
 509                 /* Supported Speed */
 510                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 511                                         FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
 512                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 513                 len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
 514                 put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDSPEED,
 515                                    &entry->type);
 516                 put_unaligned_be16(len, &entry->len);
 517
 518                 put_unaligned_be32(fc_host_supported_speeds(lport->host),
 519                                    &entry->value);
 520
 521                 /* Current Port Speed */
 522                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 523                                         FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN);
 524                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 525                 len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
 526                 put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTPORTSPEED,
 527                                    &entry->type);
 528                 put_unaligned_be16(len, &entry->len);
 529                 put_unaligned_be32(lport->link_speed,
 530                                    &entry->value);
 531
 532                 /* Max Frame Size */
 533                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 534                                         FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN);
 535                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 536                 len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
 537                 put_unaligned_be16(FC_FDMI_PORT_ATTR_MAXFRAMESIZE,
 538                                    &entry->type);
 539                 put_unaligned_be16(len, &entry->len);
 540                 put_unaligned_be32(fc_host_maxframe_size(lport->host),
 541                                    &entry->value);
 542
 543                 /* OS Device Name */
 544                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 545                                         FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN);
 546                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 547                 len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
 548                 put_unaligned_be16(FC_FDMI_PORT_ATTR_OSDEVICENAME,
 549                                    &entry->type);
 550                 put_unaligned_be16(len, &entry->len);
 551                 /* Use the sysfs device name */
 552                 fc_ct_ms_fill_attr(entry,
 553                         dev_name(&lport->host->shost_gendev),
 554                         strnlen(dev_name(&lport->host->shost_gendev),
 555                                 FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
 556
 557                 /* Host Name */
 558                 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 559                                         FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN);
 560                 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 561                 len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
 562                 put_unaligned_be16(FC_FDMI_PORT_ATTR_HOSTNAME,
 563                                    &entry->type);
 564                 put_unaligned_be16(len, &entry->len);
 565                 if (strlen(fc_host_system_hostname(lport->host)))
 566                         fc_ct_ms_fill_attr(entry,
 567                                 fc_host_system_hostname(lport->host),
 568                                 strnlen(fc_host_system_hostname(lport->host),
 569                                         FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
 570                 else
 571                         fc_ct_ms_fill_attr(entry,
 572                                 init_utsname()->nodename,
 573                                 FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
 574
 575
 576                 if (fc_host->fdmi_version == FDMI_V2) {
 577
 578                         /* Node name */
 579                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 580                                         FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
 581                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 582                         len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
 583                         put_unaligned_be16(FC_FDMI_PORT_ATTR_NODENAME,
 584                                         &entry->type);
 585                         put_unaligned_be16(len, &entry->len);
 586                         put_unaligned_be64(fc_host_node_name(lport->host),
 587                                         &entry->value);
 588
 589                         /* Port name  */
 590                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 591                                         FC_FDMI_PORT_ATTR_NODENAME_LEN);
 592                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 593                         len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
 594                         put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTNAME,
 595                                         &entry->type);
 596                         put_unaligned_be16(len, &entry->len);
 597                         put_unaligned_be64(lport->wwpn,
 598                                         &entry->value);
 599
 600                         /* Port symbolic name */
 601                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 602                                         FC_FDMI_PORT_ATTR_PORTNAME_LEN);
 603                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 604                         len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
 605                         put_unaligned_be16(FC_FDMI_PORT_ATTR_SYMBOLICNAME,
 606                                         &entry->type);
 607                         put_unaligned_be16(len, &entry->len);
 608                         fc_ct_ms_fill_attr(entry,
 609                                         fc_host_symbolic_name(lport->host),
 610                                         FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
 611
 612                         /* Port type */
 613                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 614                                         FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN);
 615                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 616                         len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
 617                         put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTTYPE,
 618                                         &entry->type);
 619                         put_unaligned_be16(len, &entry->len);
 620                         put_unaligned_be32(fc_host_port_type(lport->host),
 621                                         &entry->value);
 622
 623                         /* Supported class of service */
 624                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 625                                         FC_FDMI_PORT_ATTR_PORTTYPE_LEN);
 626                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 627                         len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
 628                         put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC,
 629                                         &entry->type);
 630                         put_unaligned_be16(len, &entry->len);
 631                         put_unaligned_be32(fc_host_supported_classes(lport->host),
 632                                         &entry->value);
 633
 634                         /* Port Fabric name */
 635                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 636                                         FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN);
 637                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 638                         len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
 639                         put_unaligned_be16(FC_FDMI_PORT_ATTR_FABRICNAME,
 640                                         &entry->type);
 641                         put_unaligned_be16(len, &entry->len);
 642                         put_unaligned_be64(fc_host_fabric_name(lport->host),
 643                                         &entry->value);
 644
 645                         /* Port active FC-4 */
 646                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 647                                         FC_FDMI_PORT_ATTR_FABRICNAME_LEN);
 648                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 649                         len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
 650                         put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTFC4TYPE,
 651                                         &entry->type);
 652                         put_unaligned_be16(len, &entry->len);
 653                         memcpy(&entry->value, fc_host_active_fc4s(lport->host),
 654                                         FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
 655
 656                         /* Port state */
 657                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 658                                         FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN);
 659                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 660                         len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
 661                         put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTSTATE,
 662                                         &entry->type);
 663                         put_unaligned_be16(len, &entry->len);
 664                         put_unaligned_be32(fc_host_port_state(lport->host),
 665                                         &entry->value);
 666
 667                         /* Discovered ports */
 668                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 669                                         FC_FDMI_PORT_ATTR_PORTSTATE_LEN);
 670                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 671                         len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
 672                         put_unaligned_be16(FC_FDMI_PORT_ATTR_DISCOVEREDPORTS,
 673                                         &entry->type);
 674                         put_unaligned_be16(len, &entry->len);
 675                         put_unaligned_be32(fc_host_num_discovered_ports(lport->host),
 676                                         &entry->value);
 677
 678                         /* Port ID */
 679                         entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
 680                                         FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN);
 681                         len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
 682                         len += FC_FDMI_PORT_ATTR_PORTID_LEN;
 683                         put_unaligned_be16(FC_FDMI_PORT_ATTR_PORTID,
 684                                         &entry->type);
 685                         put_unaligned_be16(len, &entry->len);
 686                         put_unaligned_be32(fc_host_port_id(lport->host),
 687                                         &entry->value);
 688                 }
 689
 690                 break;
 691         case FC_FDMI_DPRT:
 692                 len = sizeof(struct fc_fdmi_dprt);
 693                 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
 694                                     FC_FDMI_SUBTYPE);
 695                 /* Port Name */
 696                 put_unaligned_be64(lport->wwpn,
 697                                    &ct->payload.dprt.port.portname);
 698                 break;
 699         case FC_FDMI_DHBA:
 700                 len = sizeof(struct fc_fdmi_dhba);
 701                 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
 702                                     FC_FDMI_SUBTYPE);
 703                 /* HBA Identifier */
 704                 put_unaligned_be64(lport->wwpn, &ct->payload.dhba.hbaid.id);
 705                 break;
 706         default:
 707                 return -EINVAL;
 708         }
 709         *r_ctl = FC_RCTL_DD_UNSOL_CTL;
 710         *fh_type = FC_TYPE_CT;
 711         return 0;
 712 }
 713
 714 /**
 715  * fc_ct_fill() - Fill in a common transport service request frame
 716  * @lport: local port.
 717  * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries.
 718  * @fp: frame to contain payload.
 719  * @op: CT opcode.
 720  * @r_ctl: pointer to FC header R_CTL.
 721  * @fh_type: pointer to FC-4 type.
 722  */
 723 static inline int fc_ct_fill(struct fc_lport *lport,
 724                       u32 fc_id, struct fc_frame *fp,
 725                       unsigned int op, enum fc_rctl *r_ctl,
 726                       enum fc_fh_type *fh_type, u32 *did)
 727 {
 728         int rc = -EINVAL;
 729
 730         switch (fc_id) {
 731         case FC_FID_MGMT_SERV:
 732                 rc = fc_ct_ms_fill(lport, fc_id, fp, op, r_ctl, fh_type);
 733                 *did = FC_FID_MGMT_SERV;
 734                 break;
 735         case FC_FID_DIR_SERV:
 736         default:
 737                 rc = fc_ct_ns_fill(lport, fc_id, fp, op, r_ctl, fh_type);
 738                 *did = FC_FID_DIR_SERV;
 739                 break;
 740         }
 741
 742         return rc;
 743 }
 744 /**
 745  * fc_plogi_fill - Fill in plogi request frame
 746  */
 747 static inline void fc_plogi_fill(struct fc_lport *lport, struct fc_frame *fp,
 748                                  unsigned int op)
 749 {
 750         struct fc_els_flogi *plogi;
 751         struct fc_els_csp *csp;
 752         struct fc_els_cssp *cp;
 753
 754         plogi = fc_frame_payload_get(fp, sizeof(*plogi));
 755         memset(plogi, 0, sizeof(*plogi));
 756         plogi->fl_cmd = (u8) op;
 757         put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn);
 758         put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn);
 759
 760         csp = &plogi->fl_csp;
 761         csp->sp_hi_ver = 0x20;
 762         csp->sp_lo_ver = 0x20;
 763         csp->sp_bb_cred = htons(10);    /* this gets set by gateway */
 764         csp->sp_bb_data = htons((u16) lport->mfs);
 765         cp = &plogi->fl_cssp[3 - 1];    /* class 3 parameters */
 766         cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
 767         csp->sp_features = htons(FC_SP_FT_CIRO);
 768         csp->sp_tot_seq = htons(255);   /* seq. we accept */
 769         csp->sp_rel_off = htons(0x1f);
 770         csp->sp_e_d_tov = htonl(lport->e_d_tov);
 771
 772         cp->cp_rdfs = htons((u16) lport->mfs);
 773         cp->cp_con_seq = htons(255);
 774         cp->cp_open_seq = 1;
 775 }
 776
 777 /**
 778  * fc_flogi_fill - Fill in a flogi request frame.
 779  */
 780 static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp)
 781 {
 782         struct fc_els_csp *sp;
 783         struct fc_els_cssp *cp;
 784         struct fc_els_flogi *flogi;
 785
 786         flogi = fc_frame_payload_get(fp, sizeof(*flogi));
 787         memset(flogi, 0, sizeof(*flogi));
 788         flogi->fl_cmd = (u8) ELS_FLOGI;
 789         put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn);
 790         put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn);
 791         sp = &flogi->fl_csp;
 792         sp->sp_hi_ver = 0x20;
 793         sp->sp_lo_ver = 0x20;
 794         sp->sp_bb_cred = htons(10);     /* this gets set by gateway */
 795         sp->sp_bb_data = htons((u16) lport->mfs);
 796         cp = &flogi->fl_cssp[3 - 1];    /* class 3 parameters */
 797         cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
 798         if (lport->does_npiv)
 799                 sp->sp_features = htons(FC_SP_FT_NPIV);
 800 }
 801
 802 /**
 803  * fc_fdisc_fill - Fill in a fdisc request frame.
 804  */
 805 static inline void fc_fdisc_fill(struct fc_lport *lport, struct fc_frame *fp)
 806 {
 807         struct fc_els_csp *sp;
 808         struct fc_els_cssp *cp;
 809         struct fc_els_flogi *fdisc;
 810
 811         fdisc = fc_frame_payload_get(fp, sizeof(*fdisc));
 812         memset(fdisc, 0, sizeof(*fdisc));
 813         fdisc->fl_cmd = (u8) ELS_FDISC;
 814         put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn);
 815         put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn);
 816         sp = &fdisc->fl_csp;
 817         sp->sp_hi_ver = 0x20;
 818         sp->sp_lo_ver = 0x20;
 819         sp->sp_bb_cred = htons(10);     /* this gets set by gateway */
 820         sp->sp_bb_data = htons((u16) lport->mfs);
 821         cp = &fdisc->fl_cssp[3 - 1];    /* class 3 parameters */
 822         cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ);
 823 }
 824
 825 /**
 826  * fc_logo_fill - Fill in a logo request frame.
 827  */
 828 static inline void fc_logo_fill(struct fc_lport *lport, struct fc_frame *fp)
 829 {
 830         struct fc_els_logo *logo;
 831
 832         logo = fc_frame_payload_get(fp, sizeof(*logo));
 833         memset(logo, 0, sizeof(*logo));
 834         logo->fl_cmd = ELS_LOGO;
 835         hton24(logo->fl_n_port_id, lport->port_id);
 836         logo->fl_n_port_wwn = htonll(lport->wwpn);
 837 }
 838
 839 /**
 840  * fc_rtv_fill - Fill in RTV (read timeout value) request frame.
 841  */
 842 static inline void fc_rtv_fill(struct fc_lport *lport, struct fc_frame *fp)
 843 {
 844         struct fc_els_rtv *rtv;
 845
 846         rtv = fc_frame_payload_get(fp, sizeof(*rtv));
 847         memset(rtv, 0, sizeof(*rtv));
 848         rtv->rtv_cmd = ELS_RTV;
 849 }
 850
 851 /**
 852  * fc_rec_fill - Fill in rec request frame
 853  */
 854 static inline void fc_rec_fill(struct fc_lport *lport, struct fc_frame *fp)
 855 {
 856         struct fc_els_rec *rec;
 857         struct fc_exch *ep = fc_seq_exch(fr_seq(fp));
 858
 859         rec = fc_frame_payload_get(fp, sizeof(*rec));
 860         memset(rec, 0, sizeof(*rec));
 861         rec->rec_cmd = ELS_REC;
 862         hton24(rec->rec_s_id, lport->port_id);
 863         rec->rec_ox_id = htons(ep->oxid);
 864         rec->rec_rx_id = htons(ep->rxid);
 865 }
 866
 867 /**
 868  * fc_prli_fill - Fill in prli request frame
 869  */
 870 static inline void fc_prli_fill(struct fc_lport *lport, struct fc_frame *fp)
 871 {
 872         struct {
 873                 struct fc_els_prli prli;
 874                 struct fc_els_spp spp;
 875         } *pp;
 876
 877         pp = fc_frame_payload_get(fp, sizeof(*pp));
 878         memset(pp, 0, sizeof(*pp));
 879         pp->prli.prli_cmd = ELS_PRLI;
 880         pp->prli.prli_spp_len = sizeof(struct fc_els_spp);
 881         pp->prli.prli_len = htons(sizeof(*pp));
 882         pp->spp.spp_type = FC_TYPE_FCP;
 883         pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR;
 884         pp->spp.spp_params = htonl(lport->service_params);
 885 }
 886
 887 /**
 888  * fc_scr_fill - Fill in a scr request frame.
 889  */
 890 static inline void fc_scr_fill(struct fc_lport *lport, struct fc_frame *fp)
 891 {
 892         struct fc_els_scr *scr;
 893
 894         scr = fc_frame_payload_get(fp, sizeof(*scr));
 895         memset(scr, 0, sizeof(*scr));
 896         scr->scr_cmd = ELS_SCR;
 897         scr->scr_reg_func = ELS_SCRF_FULL;
 898 }
 899
 900 /**
 901  * fc_els_fill - Fill in an ELS  request frame
 902  */
 903 static inline int fc_els_fill(struct fc_lport *lport,
 904                        u32 did,
 905                        struct fc_frame *fp, unsigned int op,
 906                        enum fc_rctl *r_ctl, enum fc_fh_type *fh_type)
 907 {
 908         switch (op) {
 909         case ELS_ADISC:
 910                 fc_adisc_fill(lport, fp);
 911                 break;
 912
 913         case ELS_PLOGI:
 914                 fc_plogi_fill(lport, fp, ELS_PLOGI);
 915                 break;
 916
 917         case ELS_FLOGI:
 918                 fc_flogi_fill(lport, fp);
 919                 break;
 920
 921         case ELS_FDISC:
 922                 fc_fdisc_fill(lport, fp);
 923                 break;
 924
 925         case ELS_LOGO:
 926                 fc_logo_fill(lport, fp);
 927                 break;
 928
 929         case ELS_RTV:
 930                 fc_rtv_fill(lport, fp);
 931                 break;
 932
 933         case ELS_REC:
 934                 fc_rec_fill(lport, fp);
 935                 break;
 936
 937         case ELS_PRLI:
 938                 fc_prli_fill(lport, fp);
 939                 break;
 940
 941         case ELS_SCR:
 942                 fc_scr_fill(lport, fp);
 943                 break;
 944
 945         default:
 946                 return -EINVAL;
 947         }
 948
 949         *r_ctl = FC_RCTL_ELS_REQ;
 950         *fh_type = FC_TYPE_ELS;
 951         return 0;
 952 }
 953 #endif /* _FC_ENCODE_H_ */