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 = strscpy(entry->value, in, len); 170 if (copied > 0) 171 memset(entry->value, copied, len - copied); 172 } 173 174 /** 175 * fc_ct_ms_fill() - Fill in a mgmt service request frame 176 * @lport: local port. 177 * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries. 178 * @fp: frame to contain payload. 179 * @op: CT opcode. 180 * @r_ctl: pointer to FC header R_CTL. 181 * @fh_type: pointer to FC-4 type. 182 */ 183 static inline int fc_ct_ms_fill(struct fc_lport *lport, 184 u32 fc_id, struct fc_frame *fp, 185 unsigned int op, enum fc_rctl *r_ctl, 186 enum fc_fh_type *fh_type) 187 { 188 struct fc_ct_req *ct; 189 size_t len; 190 struct fc_fdmi_attr_entry *entry; 191 struct fs_fdmi_attrs *hba_attrs; 192 int numattrs = 0; 193 194 switch (op) { 195 case FC_FDMI_RHBA: 196 numattrs = 10; 197 len = sizeof(struct fc_fdmi_rhba); 198 len -= sizeof(struct fc_fdmi_attr_entry); 199 len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN); 200 len += FC_FDMI_HBA_ATTR_NODENAME_LEN; 201 len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN; 202 len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN; 203 len += FC_FDMI_HBA_ATTR_MODEL_LEN; 204 len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN; 205 len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN; 206 len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN; 207 len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN; 208 len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN; 209 len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN; 210 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, 211 FC_FDMI_SUBTYPE); 212 213 /* HBA Identifier */ 214 put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id); 215 /* Number of Ports - always 1 */ 216 put_unaligned_be32(1, &ct->payload.rhba.port.numport); 217 /* Port Name */ 218 put_unaligned_be64(lport->wwpn, 219 &ct->payload.rhba.port.port[0].portname); 220 221 /* HBA Attributes */ 222 put_unaligned_be32(numattrs, 223 &ct->payload.rhba.hba_attrs.numattrs); 224 hba_attrs = &ct->payload.rhba.hba_attrs; 225 entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr; 226 /* NodeName*/ 227 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 228 len += FC_FDMI_HBA_ATTR_NODENAME_LEN; 229 put_unaligned_be16(FC_FDMI_HBA_ATTR_NODENAME, 230 &entry->type); 231 put_unaligned_be16(len, &entry->len); 232 put_unaligned_be64(lport->wwnn, 233 (__be64 *)&entry->value[0]); 234 235 /* Manufacturer */ 236 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 237 FC_FDMI_HBA_ATTR_NODENAME_LEN); 238 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 239 len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN; 240 put_unaligned_be16(FC_FDMI_HBA_ATTR_MANUFACTURER, 241 &entry->type); 242 put_unaligned_be16(len, &entry->len); 243 fc_ct_ms_fill_attr(entry, 244 fc_host_manufacturer(lport->host), 245 FC_FDMI_HBA_ATTR_MANUFACTURER_LEN); 246 247 /* SerialNumber */ 248 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 249 FC_FDMI_HBA_ATTR_MANUFACTURER_LEN); 250 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 251 len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN; 252 put_unaligned_be16(FC_FDMI_HBA_ATTR_SERIALNUMBER, 253 &entry->type); 254 put_unaligned_be16(len, &entry->len); 255 fc_ct_ms_fill_attr(entry, 256 fc_host_serial_number(lport->host), 257 FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN); 258 259 /* Model */ 260 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 261 FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN); 262 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 263 len += FC_FDMI_HBA_ATTR_MODEL_LEN; 264 put_unaligned_be16(FC_FDMI_HBA_ATTR_MODEL, 265 &entry->type); 266 put_unaligned_be16(len, &entry->len); 267 fc_ct_ms_fill_attr(entry, 268 fc_host_model(lport->host), 269 FC_FDMI_HBA_ATTR_MODEL_LEN); 270 271 /* Model Description */ 272 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 273 FC_FDMI_HBA_ATTR_MODEL_LEN); 274 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 275 len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN; 276 put_unaligned_be16(FC_FDMI_HBA_ATTR_MODELDESCRIPTION, 277 &entry->type); 278 put_unaligned_be16(len, &entry->len); 279 fc_ct_ms_fill_attr(entry, 280 fc_host_model_description(lport->host), 281 FC_FDMI_HBA_ATTR_MODELDESCR_LEN); 282 283 /* Hardware Version */ 284 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 285 FC_FDMI_HBA_ATTR_MODELDESCR_LEN); 286 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 287 len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN; 288 put_unaligned_be16(FC_FDMI_HBA_ATTR_HARDWAREVERSION, 289 &entry->type); 290 put_unaligned_be16(len, &entry->len); 291 fc_ct_ms_fill_attr(entry, 292 fc_host_hardware_version(lport->host), 293 FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN); 294 295 /* Driver Version */ 296 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 297 FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN); 298 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 299 len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN; 300 put_unaligned_be16(FC_FDMI_HBA_ATTR_DRIVERVERSION, 301 &entry->type); 302 put_unaligned_be16(len, &entry->len); 303 fc_ct_ms_fill_attr(entry, 304 fc_host_driver_version(lport->host), 305 FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN); 306 307 /* OptionROM Version */ 308 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 309 FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN); 310 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 311 len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN; 312 put_unaligned_be16(FC_FDMI_HBA_ATTR_OPTIONROMVERSION, 313 &entry->type); 314 put_unaligned_be16(len, &entry->len); 315 fc_ct_ms_fill_attr(entry, 316 fc_host_optionrom_version(lport->host), 317 FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN); 318 319 /* Firmware Version */ 320 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 321 FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN); 322 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 323 len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN; 324 put_unaligned_be16(FC_FDMI_HBA_ATTR_FIRMWAREVERSION, 325 &entry->type); 326 put_unaligned_be16(len, &entry->len); 327 fc_ct_ms_fill_attr(entry, 328 fc_host_firmware_version(lport->host), 329 FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN); 330 331 /* OS Name and Version */ 332 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 333 FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN); 334 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 335 len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN; 336 put_unaligned_be16(FC_FDMI_HBA_ATTR_OSNAMEVERSION, 337 &entry->type); 338 put_unaligned_be16(len, &entry->len); 339 snprintf((char *)&entry->value, 340 FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN, 341 "%s v%s", 342 init_utsname()->sysname, 343 init_utsname()->release); 344 break; 345 case FC_FDMI_RPA: 346 numattrs = 6; 347 len = sizeof(struct fc_fdmi_rpa); 348 len -= sizeof(struct fc_fdmi_attr_entry); 349 len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN); 350 len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN; 351 len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN; 352 len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN; 353 len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN; 354 len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN; 355 len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN; 356 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, 357 FC_FDMI_SUBTYPE); 358 359 /* Port Name */ 360 put_unaligned_be64(lport->wwpn, 361 &ct->payload.rpa.port.portname); 362 363 /* Port Attributes */ 364 put_unaligned_be32(numattrs, 365 &ct->payload.rpa.hba_attrs.numattrs); 366 367 hba_attrs = &ct->payload.rpa.hba_attrs; 368 entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr; 369 370 /* FC4 types */ 371 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 372 len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN; 373 put_unaligned_be16(FC_FDMI_PORT_ATTR_FC4TYPES, 374 &entry->type); 375 put_unaligned_be16(len, &entry->len); 376 memcpy(&entry->value, fc_host_supported_fc4s(lport->host), 377 FC_FDMI_PORT_ATTR_FC4TYPES_LEN); 378 379 /* Supported Speed */ 380 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 381 FC_FDMI_PORT_ATTR_FC4TYPES_LEN); 382 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 383 len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN; 384 put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDSPEED, 385 &entry->type); 386 put_unaligned_be16(len, &entry->len); 387 388 put_unaligned_be32(fc_host_supported_speeds(lport->host), 389 &entry->value); 390 391 /* Current Port Speed */ 392 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 393 FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN); 394 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 395 len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN; 396 put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTPORTSPEED, 397 &entry->type); 398 put_unaligned_be16(len, &entry->len); 399 put_unaligned_be32(lport->link_speed, 400 &entry->value); 401 402 /* Max Frame Size */ 403 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 404 FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN); 405 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 406 len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN; 407 put_unaligned_be16(FC_FDMI_PORT_ATTR_MAXFRAMESIZE, 408 &entry->type); 409 put_unaligned_be16(len, &entry->len); 410 put_unaligned_be32(fc_host_maxframe_size(lport->host), 411 &entry->value); 412 413 /* OS Device Name */ 414 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 415 FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN); 416 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 417 len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN; 418 put_unaligned_be16(FC_FDMI_PORT_ATTR_OSDEVICENAME, 419 &entry->type); 420 put_unaligned_be16(len, &entry->len); 421 /* Use the sysfs device name */ 422 fc_ct_ms_fill_attr(entry, 423 dev_name(&lport->host->shost_gendev), 424 strnlen(dev_name(&lport->host->shost_gendev), 425 FC_FDMI_PORT_ATTR_HOSTNAME_LEN)); 426 427 /* Host Name */ 428 entry = (struct fc_fdmi_attr_entry *)((char *)entry->value + 429 FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN); 430 len = FC_FDMI_ATTR_ENTRY_HEADER_LEN; 431 len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN; 432 put_unaligned_be16(FC_FDMI_PORT_ATTR_HOSTNAME, 433 &entry->type); 434 put_unaligned_be16(len, &entry->len); 435 if (strlen(fc_host_system_hostname(lport->host))) 436 fc_ct_ms_fill_attr(entry, 437 fc_host_system_hostname(lport->host), 438 strnlen(fc_host_system_hostname(lport->host), 439 FC_FDMI_PORT_ATTR_HOSTNAME_LEN)); 440 else 441 fc_ct_ms_fill_attr(entry, 442 init_utsname()->nodename, 443 FC_FDMI_PORT_ATTR_HOSTNAME_LEN); 444 break; 445 case FC_FDMI_DPRT: 446 len = sizeof(struct fc_fdmi_dprt); 447 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, 448 FC_FDMI_SUBTYPE); 449 /* Port Name */ 450 put_unaligned_be64(lport->wwpn, 451 &ct->payload.dprt.port.portname); 452 break; 453 case FC_FDMI_DHBA: 454 len = sizeof(struct fc_fdmi_dhba); 455 ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT, 456 FC_FDMI_SUBTYPE); 457 /* HBA Identifier */ 458 put_unaligned_be64(lport->wwpn, &ct->payload.dhba.hbaid.id); 459 break; 460 default: 461 return -EINVAL; 462 } 463 *r_ctl = FC_RCTL_DD_UNSOL_CTL; 464 *fh_type = FC_TYPE_CT; 465 return 0; 466 } 467 468 /** 469 * fc_ct_fill() - Fill in a common transport service request frame 470 * @lport: local port. 471 * @fc_id: FC_ID of non-destination rport for GPN_ID and similar inquiries. 472 * @fp: frame to contain payload. 473 * @op: CT opcode. 474 * @r_ctl: pointer to FC header R_CTL. 475 * @fh_type: pointer to FC-4 type. 476 */ 477 static inline int fc_ct_fill(struct fc_lport *lport, 478 u32 fc_id, struct fc_frame *fp, 479 unsigned int op, enum fc_rctl *r_ctl, 480 enum fc_fh_type *fh_type, u32 *did) 481 { 482 int rc = -EINVAL; 483 484 switch (fc_id) { 485 case FC_FID_MGMT_SERV: 486 rc = fc_ct_ms_fill(lport, fc_id, fp, op, r_ctl, fh_type); 487 *did = FC_FID_MGMT_SERV; 488 break; 489 case FC_FID_DIR_SERV: 490 default: 491 rc = fc_ct_ns_fill(lport, fc_id, fp, op, r_ctl, fh_type); 492 *did = FC_FID_DIR_SERV; 493 break; 494 } 495 496 return rc; 497 } 498 /** 499 * fc_plogi_fill - Fill in plogi request frame 500 */ 501 static inline void fc_plogi_fill(struct fc_lport *lport, struct fc_frame *fp, 502 unsigned int op) 503 { 504 struct fc_els_flogi *plogi; 505 struct fc_els_csp *csp; 506 struct fc_els_cssp *cp; 507 508 plogi = fc_frame_payload_get(fp, sizeof(*plogi)); 509 memset(plogi, 0, sizeof(*plogi)); 510 plogi->fl_cmd = (u8) op; 511 put_unaligned_be64(lport->wwpn, &plogi->fl_wwpn); 512 put_unaligned_be64(lport->wwnn, &plogi->fl_wwnn); 513 514 csp = &plogi->fl_csp; 515 csp->sp_hi_ver = 0x20; 516 csp->sp_lo_ver = 0x20; 517 csp->sp_bb_cred = htons(10); /* this gets set by gateway */ 518 csp->sp_bb_data = htons((u16) lport->mfs); 519 cp = &plogi->fl_cssp[3 - 1]; /* class 3 parameters */ 520 cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); 521 csp->sp_features = htons(FC_SP_FT_CIRO); 522 csp->sp_tot_seq = htons(255); /* seq. we accept */ 523 csp->sp_rel_off = htons(0x1f); 524 csp->sp_e_d_tov = htonl(lport->e_d_tov); 525 526 cp->cp_rdfs = htons((u16) lport->mfs); 527 cp->cp_con_seq = htons(255); 528 cp->cp_open_seq = 1; 529 } 530 531 /** 532 * fc_flogi_fill - Fill in a flogi request frame. 533 */ 534 static inline void fc_flogi_fill(struct fc_lport *lport, struct fc_frame *fp) 535 { 536 struct fc_els_csp *sp; 537 struct fc_els_cssp *cp; 538 struct fc_els_flogi *flogi; 539 540 flogi = fc_frame_payload_get(fp, sizeof(*flogi)); 541 memset(flogi, 0, sizeof(*flogi)); 542 flogi->fl_cmd = (u8) ELS_FLOGI; 543 put_unaligned_be64(lport->wwpn, &flogi->fl_wwpn); 544 put_unaligned_be64(lport->wwnn, &flogi->fl_wwnn); 545 sp = &flogi->fl_csp; 546 sp->sp_hi_ver = 0x20; 547 sp->sp_lo_ver = 0x20; 548 sp->sp_bb_cred = htons(10); /* this gets set by gateway */ 549 sp->sp_bb_data = htons((u16) lport->mfs); 550 cp = &flogi->fl_cssp[3 - 1]; /* class 3 parameters */ 551 cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); 552 if (lport->does_npiv) 553 sp->sp_features = htons(FC_SP_FT_NPIV); 554 } 555 556 /** 557 * fc_fdisc_fill - Fill in a fdisc request frame. 558 */ 559 static inline void fc_fdisc_fill(struct fc_lport *lport, struct fc_frame *fp) 560 { 561 struct fc_els_csp *sp; 562 struct fc_els_cssp *cp; 563 struct fc_els_flogi *fdisc; 564 565 fdisc = fc_frame_payload_get(fp, sizeof(*fdisc)); 566 memset(fdisc, 0, sizeof(*fdisc)); 567 fdisc->fl_cmd = (u8) ELS_FDISC; 568 put_unaligned_be64(lport->wwpn, &fdisc->fl_wwpn); 569 put_unaligned_be64(lport->wwnn, &fdisc->fl_wwnn); 570 sp = &fdisc->fl_csp; 571 sp->sp_hi_ver = 0x20; 572 sp->sp_lo_ver = 0x20; 573 sp->sp_bb_cred = htons(10); /* this gets set by gateway */ 574 sp->sp_bb_data = htons((u16) lport->mfs); 575 cp = &fdisc->fl_cssp[3 - 1]; /* class 3 parameters */ 576 cp->cp_class = htons(FC_CPC_VALID | FC_CPC_SEQ); 577 } 578 579 /** 580 * fc_logo_fill - Fill in a logo request frame. 581 */ 582 static inline void fc_logo_fill(struct fc_lport *lport, struct fc_frame *fp) 583 { 584 struct fc_els_logo *logo; 585 586 logo = fc_frame_payload_get(fp, sizeof(*logo)); 587 memset(logo, 0, sizeof(*logo)); 588 logo->fl_cmd = ELS_LOGO; 589 hton24(logo->fl_n_port_id, lport->port_id); 590 logo->fl_n_port_wwn = htonll(lport->wwpn); 591 } 592 593 /** 594 * fc_rtv_fill - Fill in RTV (read timeout value) request frame. 595 */ 596 static inline void fc_rtv_fill(struct fc_lport *lport, struct fc_frame *fp) 597 { 598 struct fc_els_rtv *rtv; 599 600 rtv = fc_frame_payload_get(fp, sizeof(*rtv)); 601 memset(rtv, 0, sizeof(*rtv)); 602 rtv->rtv_cmd = ELS_RTV; 603 } 604 605 /** 606 * fc_rec_fill - Fill in rec request frame 607 */ 608 static inline void fc_rec_fill(struct fc_lport *lport, struct fc_frame *fp) 609 { 610 struct fc_els_rec *rec; 611 struct fc_exch *ep = fc_seq_exch(fr_seq(fp)); 612 613 rec = fc_frame_payload_get(fp, sizeof(*rec)); 614 memset(rec, 0, sizeof(*rec)); 615 rec->rec_cmd = ELS_REC; 616 hton24(rec->rec_s_id, lport->port_id); 617 rec->rec_ox_id = htons(ep->oxid); 618 rec->rec_rx_id = htons(ep->rxid); 619 } 620 621 /** 622 * fc_prli_fill - Fill in prli request frame 623 */ 624 static inline void fc_prli_fill(struct fc_lport *lport, struct fc_frame *fp) 625 { 626 struct { 627 struct fc_els_prli prli; 628 struct fc_els_spp spp; 629 } *pp; 630 631 pp = fc_frame_payload_get(fp, sizeof(*pp)); 632 memset(pp, 0, sizeof(*pp)); 633 pp->prli.prli_cmd = ELS_PRLI; 634 pp->prli.prli_spp_len = sizeof(struct fc_els_spp); 635 pp->prli.prli_len = htons(sizeof(*pp)); 636 pp->spp.spp_type = FC_TYPE_FCP; 637 pp->spp.spp_flags = FC_SPP_EST_IMG_PAIR; 638 pp->spp.spp_params = htonl(lport->service_params); 639 } 640 641 /** 642 * fc_scr_fill - Fill in a scr request frame. 643 */ 644 static inline void fc_scr_fill(struct fc_lport *lport, struct fc_frame *fp) 645 { 646 struct fc_els_scr *scr; 647 648 scr = fc_frame_payload_get(fp, sizeof(*scr)); 649 memset(scr, 0, sizeof(*scr)); 650 scr->scr_cmd = ELS_SCR; 651 scr->scr_reg_func = ELS_SCRF_FULL; 652 } 653 654 /** 655 * fc_els_fill - Fill in an ELS request frame 656 */ 657 static inline int fc_els_fill(struct fc_lport *lport, 658 u32 did, 659 struct fc_frame *fp, unsigned int op, 660 enum fc_rctl *r_ctl, enum fc_fh_type *fh_type) 661 { 662 switch (op) { 663 case ELS_ADISC: 664 fc_adisc_fill(lport, fp); 665 break; 666 667 case ELS_PLOGI: 668 fc_plogi_fill(lport, fp, ELS_PLOGI); 669 break; 670 671 case ELS_FLOGI: 672 fc_flogi_fill(lport, fp); 673 break; 674 675 case ELS_FDISC: 676 fc_fdisc_fill(lport, fp); 677 break; 678 679 case ELS_LOGO: 680 fc_logo_fill(lport, fp); 681 break; 682 683 case ELS_RTV: 684 fc_rtv_fill(lport, fp); 685 break; 686 687 case ELS_REC: 688 fc_rec_fill(lport, fp); 689 break; 690 691 case ELS_PRLI: 692 fc_prli_fill(lport, fp); 693 break; 694 695 case ELS_SCR: 696 fc_scr_fill(lport, fp); 697 break; 698 699 default: 700 return -EINVAL; 701 } 702 703 *r_ctl = FC_RCTL_ELS_REQ; 704 *fh_type = FC_TYPE_ELS; 705 return 0; 706 } 707 #endif /* _FC_ENCODE_H_ */ 708