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