1 /* 2 * Copyright(c) 2007 Intel Corporation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * You should have received a copy of the GNU General Public License along with 14 * this program; if not, write to the Free Software Foundation, Inc., 15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 16 * 17 * Maintained at www.Open-FCoE.org 18 */ 19 20 #ifndef _FC_ELS_H_ 21 #define _FC_ELS_H_ 22 23 /* 24 * Fibre Channel Switch - Enhanced Link Services definitions. 25 * From T11 FC-LS Rev 1.2 June 7, 2005. 26 */ 27 28 /* 29 * ELS Command codes - byte 0 of the frame payload 30 */ 31 enum fc_els_cmd { 32 ELS_LS_RJT = 0x01, /* ESL reject */ 33 ELS_LS_ACC = 0x02, /* ESL Accept */ 34 ELS_PLOGI = 0x03, /* N_Port login */ 35 ELS_FLOGI = 0x04, /* F_Port login */ 36 ELS_LOGO = 0x05, /* Logout */ 37 ELS_ABTX = 0x06, /* Abort exchange - obsolete */ 38 ELS_RCS = 0x07, /* read connection status */ 39 ELS_RES = 0x08, /* read exchange status block */ 40 ELS_RSS = 0x09, /* read sequence status block */ 41 ELS_RSI = 0x0a, /* read sequence initiative */ 42 ELS_ESTS = 0x0b, /* establish streaming */ 43 ELS_ESTC = 0x0c, /* estimate credit */ 44 ELS_ADVC = 0x0d, /* advise credit */ 45 ELS_RTV = 0x0e, /* read timeout value */ 46 ELS_RLS = 0x0f, /* read link error status block */ 47 ELS_ECHO = 0x10, /* echo */ 48 ELS_TEST = 0x11, /* test */ 49 ELS_RRQ = 0x12, /* reinstate recovery qualifier */ 50 ELS_REC = 0x13, /* read exchange concise */ 51 ELS_SRR = 0x14, /* sequence retransmission request */ 52 ELS_PRLI = 0x20, /* process login */ 53 ELS_PRLO = 0x21, /* process logout */ 54 ELS_SCN = 0x22, /* state change notification */ 55 ELS_TPLS = 0x23, /* test process login state */ 56 ELS_TPRLO = 0x24, /* third party process logout */ 57 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 58 ELS_GAID = 0x30, /* get alias_ID */ 59 ELS_FACT = 0x31, /* fabric activate alias_id */ 60 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 61 ELS_NACT = 0x33, /* N-port activate alias_id */ 62 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 63 ELS_QOSR = 0x40, /* quality of service request */ 64 ELS_RVCS = 0x41, /* read virtual circuit status */ 65 ELS_PDISC = 0x50, /* discover N_port service params */ 66 ELS_FDISC = 0x51, /* discover F_port service params */ 67 ELS_ADISC = 0x52, /* discover address */ 68 ELS_RNC = 0x53, /* report node cap (obs) */ 69 ELS_FARP_REQ = 0x54, /* FC ARP request */ 70 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 71 ELS_RPS = 0x56, /* read port status block */ 72 ELS_RPL = 0x57, /* read port list */ 73 ELS_RPBC = 0x58, /* read port buffer condition */ 74 ELS_FAN = 0x60, /* fabric address notification */ 75 ELS_RSCN = 0x61, /* registered state change notification */ 76 ELS_SCR = 0x62, /* state change registration */ 77 ELS_RNFT = 0x63, /* report node FC-4 types */ 78 ELS_CSR = 0x68, /* clock synch. request */ 79 ELS_CSU = 0x69, /* clock synch. update */ 80 ELS_LINIT = 0x70, /* loop initialize */ 81 ELS_LSTS = 0x72, /* loop status */ 82 ELS_RNID = 0x78, /* request node ID data */ 83 ELS_RLIR = 0x79, /* registered link incident report */ 84 ELS_LIRR = 0x7a, /* link incident record registration */ 85 ELS_SRL = 0x7b, /* scan remote loop */ 86 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 87 ELS_RPSC = 0x7d, /* report speed capabilities */ 88 ELS_QSA = 0x7e, /* query security attributes */ 89 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 90 ELS_LKA = 0x80, /* link keep-alive */ 91 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 92 }; 93 94 /* 95 * Initializer useful for decoding table. 96 * Please keep this in sync with the above definitions. 97 */ 98 #define FC_ELS_CMDS_INIT { \ 99 [ELS_LS_RJT] = "LS_RJT", \ 100 [ELS_LS_ACC] = "LS_ACC", \ 101 [ELS_PLOGI] = "PLOGI", \ 102 [ELS_FLOGI] = "FLOGI", \ 103 [ELS_LOGO] = "LOGO", \ 104 [ELS_ABTX] = "ABTX", \ 105 [ELS_RCS] = "RCS", \ 106 [ELS_RES] = "RES", \ 107 [ELS_RSS] = "RSS", \ 108 [ELS_RSI] = "RSI", \ 109 [ELS_ESTS] = "ESTS", \ 110 [ELS_ESTC] = "ESTC", \ 111 [ELS_ADVC] = "ADVC", \ 112 [ELS_RTV] = "RTV", \ 113 [ELS_RLS] = "RLS", \ 114 [ELS_ECHO] = "ECHO", \ 115 [ELS_TEST] = "TEST", \ 116 [ELS_RRQ] = "RRQ", \ 117 [ELS_REC] = "REC", \ 118 [ELS_SRR] = "SRR", \ 119 [ELS_PRLI] = "PRLI", \ 120 [ELS_PRLO] = "PRLO", \ 121 [ELS_SCN] = "SCN", \ 122 [ELS_TPLS] = "TPLS", \ 123 [ELS_TPRLO] = "TPRLO", \ 124 [ELS_LCLM] = "LCLM", \ 125 [ELS_GAID] = "GAID", \ 126 [ELS_FACT] = "FACT", \ 127 [ELS_FDACDT] = "FDACDT", \ 128 [ELS_NACT] = "NACT", \ 129 [ELS_NDACT] = "NDACT", \ 130 [ELS_QOSR] = "QOSR", \ 131 [ELS_RVCS] = "RVCS", \ 132 [ELS_PDISC] = "PDISC", \ 133 [ELS_FDISC] = "FDISC", \ 134 [ELS_ADISC] = "ADISC", \ 135 [ELS_RNC] = "RNC", \ 136 [ELS_FARP_REQ] = "FARP_REQ", \ 137 [ELS_FARP_REPL] = "FARP_REPL", \ 138 [ELS_RPS] = "RPS", \ 139 [ELS_RPL] = "RPL", \ 140 [ELS_RPBC] = "RPBC", \ 141 [ELS_FAN] = "FAN", \ 142 [ELS_RSCN] = "RSCN", \ 143 [ELS_SCR] = "SCR", \ 144 [ELS_RNFT] = "RNFT", \ 145 [ELS_CSR] = "CSR", \ 146 [ELS_CSU] = "CSU", \ 147 [ELS_LINIT] = "LINIT", \ 148 [ELS_LSTS] = "LSTS", \ 149 [ELS_RNID] = "RNID", \ 150 [ELS_RLIR] = "RLIR", \ 151 [ELS_LIRR] = "LIRR", \ 152 [ELS_SRL] = "SRL", \ 153 [ELS_SBRP] = "SBRP", \ 154 [ELS_RPSC] = "RPSC", \ 155 [ELS_QSA] = "QSA", \ 156 [ELS_EVFP] = "EVFP", \ 157 [ELS_LKA] = "LKA", \ 158 [ELS_AUTH_ELS] = "AUTH_ELS", \ 159 } 160 161 /* 162 * LS_ACC payload. 163 */ 164 struct fc_els_ls_acc { 165 __u8 la_cmd; /* command code ELS_LS_ACC */ 166 __u8 la_resv[3]; /* reserved */ 167 }; 168 169 /* 170 * ELS reject payload. 171 */ 172 struct fc_els_ls_rjt { 173 __u8 er_cmd; /* command code ELS_LS_RJT */ 174 __u8 er_resv[4]; /* reserved must be zero */ 175 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 176 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 177 __u8 er_vendor; /* vendor specific code */ 178 }; 179 180 /* 181 * ELS reject reason codes (er_reason). 182 */ 183 enum fc_els_rjt_reason { 184 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 185 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 186 ELS_RJT_LOGIC = 0x03, /* logical error */ 187 ELS_RJT_BUSY = 0x05, /* logical busy */ 188 ELS_RJT_PROT = 0x07, /* protocol error */ 189 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 190 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 191 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 192 ELS_RJT_VENDOR = 0xff, /* vendor specific error */ 193 }; 194 195 196 /* 197 * reason code explanation (er_explan). 198 */ 199 enum fc_els_rjt_explan { 200 ELS_EXPL_NONE = 0x00, /* No additional explanation */ 201 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ 202 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ 203 ELS_EXPL_AH = 0x11, /* invalid association header */ 204 ELS_EXPL_AH_REQ = 0x13, /* association_header required */ 205 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ 206 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ 207 ELS_EXPL_INPROG = 0x19, /* Request already in progress */ 208 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ 209 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ 210 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ 211 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ 212 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ 213 /* TBD - above definitions incomplete */ 214 }; 215 216 /* 217 * Common service parameters (N ports). 218 */ 219 struct fc_els_csp { 220 __u8 sp_hi_ver; /* highest version supported (obs.) */ 221 __u8 sp_lo_ver; /* highest version supported (obs.) */ 222 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 223 __be16 sp_features; /* common feature flags */ 224 __be16 sp_bb_data; /* b-b state number and data field sz */ 225 union { 226 struct { 227 __be16 _sp_tot_seq; /* total concurrent sequences */ 228 __be16 _sp_rel_off; /* rel. offset by info cat */ 229 } sp_plogi; 230 struct { 231 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 232 } sp_flogi_acc; 233 } sp_u; 234 __be32 sp_e_d_tov; /* error detect timeout value */ 235 }; 236 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 237 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 238 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 239 240 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 241 242 /* 243 * Minimum and maximum values for max data field size in service parameters. 244 */ 245 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 246 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 247 248 /* 249 * sp_features 250 */ 251 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel. off. */ 252 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 253 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 254 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 255 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 256 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 257 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 258 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 259 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 260 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 261 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 262 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 263 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 264 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 265 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 266 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 267 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 268 269 /* 270 * Class-specific service parameters. 271 */ 272 struct fc_els_cssp { 273 __be16 cp_class; /* class flags */ 274 __be16 cp_init; /* initiator flags */ 275 __be16 cp_recip; /* recipient flags */ 276 __be16 cp_rdfs; /* receive data field size */ 277 __be16 cp_con_seq; /* concurrent sequences */ 278 __be16 cp_ee_cred; /* N-port end-to-end credit */ 279 __u8 cp_resv1; /* reserved */ 280 __u8 cp_open_seq; /* open sequences per exchange */ 281 __u8 _cp_resv2[2]; /* reserved */ 282 }; 283 284 /* 285 * cp_class flags. 286 */ 287 #define FC_CPC_VALID 0x8000 /* class valid */ 288 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 289 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 290 #define FC_CPC_CAMP 0x0200 /* camp-on */ 291 #define FC_CPC_PRI 0x0080 /* priority */ 292 293 /* 294 * cp_init flags. 295 * (TBD: not all flags defined here). 296 */ 297 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 298 299 /* 300 * cp_recip flags. 301 */ 302 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 303 304 /* 305 * NFC_ELS_FLOGI: Fabric login request. 306 * NFC_ELS_PLOGI: Port login request (same format). 307 */ 308 struct fc_els_flogi { 309 __u8 fl_cmd; /* command */ 310 __u8 _fl_resvd[3]; /* must be zero */ 311 struct fc_els_csp fl_csp; /* common service parameters */ 312 __be64 fl_wwpn; /* port name */ 313 __be64 fl_wwnn; /* node name */ 314 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 315 __u8 fl_vend[16]; /* vendor version level */ 316 } __attribute__((__packed__)); 317 318 /* 319 * Process login service parameter page. 320 */ 321 struct fc_els_spp { 322 __u8 spp_type; /* type code or common service params */ 323 __u8 spp_type_ext; /* type code extension */ 324 __u8 spp_flags; 325 __u8 _spp_resvd; 326 __be32 spp_orig_pa; /* originator process associator */ 327 __be32 spp_resp_pa; /* responder process associator */ 328 __be32 spp_params; /* service parameters */ 329 }; 330 331 /* 332 * spp_flags. 333 */ 334 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 335 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 336 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 337 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 338 339 /* 340 * SPP response code in spp_flags - lower 4 bits. 341 */ 342 enum fc_els_spp_resp { 343 FC_SPP_RESP_ACK = 1, /* request executed */ 344 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 345 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 346 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 347 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 348 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 349 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 350 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 351 }; 352 353 /* 354 * ELS_RRQ - Reinstate Recovery Qualifier 355 */ 356 struct fc_els_rrq { 357 __u8 rrq_cmd; /* command (0x12) */ 358 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 359 __u8 rrq_resvd; /* reserved */ 360 __u8 rrq_s_id[3]; /* originator FID */ 361 __be16 rrq_ox_id; /* originator exchange ID */ 362 __be16 rrq_rx_id; /* responders exchange ID */ 363 }; 364 365 /* 366 * ELS_REC - Read exchange concise. 367 */ 368 struct fc_els_rec { 369 __u8 rec_cmd; /* command (0x13) */ 370 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 371 __u8 rec_resvd; /* reserved */ 372 __u8 rec_s_id[3]; /* originator FID */ 373 __be16 rec_ox_id; /* originator exchange ID */ 374 __be16 rec_rx_id; /* responders exchange ID */ 375 }; 376 377 /* 378 * ELS_REC LS_ACC payload. 379 */ 380 struct fc_els_rec_acc { 381 __u8 reca_cmd; /* accept (0x02) */ 382 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 383 __be16 reca_ox_id; /* originator exchange ID */ 384 __be16 reca_rx_id; /* responders exchange ID */ 385 __u8 reca_resvd1; /* reserved */ 386 __u8 reca_ofid[3]; /* originator FID */ 387 __u8 reca_resvd2; /* reserved */ 388 __u8 reca_rfid[3]; /* responder FID */ 389 __be32 reca_fc4value; /* FC4 value */ 390 __be32 reca_e_stat; /* ESB (exchange status block) status */ 391 }; 392 393 /* 394 * ELS_PRLI - Process login request and response. 395 */ 396 struct fc_els_prli { 397 __u8 prli_cmd; /* command */ 398 __u8 prli_spp_len; /* length of each serv. parm. page */ 399 __be16 prli_len; /* length of entire payload */ 400 /* service parameter pages follow */ 401 }; 402 403 /* 404 * ELS_ADISC payload 405 */ 406 struct fc_els_adisc { 407 __u8 adisc_cmd; 408 __u8 adisc_resv[3]; 409 __u8 adisc_resv1; 410 __u8 adisc_hard_addr[3]; 411 __be64 adisc_wwpn; 412 __be64 adisc_wwnn; 413 __u8 adisc_resv2; 414 __u8 adisc_port_id[3]; 415 } __attribute__((__packed__)); 416 417 /* 418 * ELS_LOGO - process or fabric logout. 419 */ 420 struct fc_els_logo { 421 __u8 fl_cmd; /* command code */ 422 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 423 __u8 fl_resvd; /* reserved */ 424 __u8 fl_n_port_id[3];/* N port ID */ 425 __be64 fl_n_port_wwn; /* port name */ 426 }; 427 428 /* 429 * ELS_RTV - read timeout value. 430 */ 431 struct fc_els_rtv { 432 __u8 rtv_cmd; /* command code 0x0e */ 433 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 434 }; 435 436 /* 437 * LS_ACC for ELS_RTV - read timeout value. 438 */ 439 struct fc_els_rtv_acc { 440 __u8 rtv_cmd; /* command code 0x02 */ 441 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 442 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 443 __be32 rtv_e_d_tov; /* error detection timeout value */ 444 __be32 rtv_toq; /* timeout qualifier (see below) */ 445 }; 446 447 /* 448 * rtv_toq bits. 449 */ 450 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 451 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 452 453 /* 454 * ELS_SCR - state change registration payload. 455 */ 456 struct fc_els_scr { 457 __u8 scr_cmd; /* command code */ 458 __u8 scr_resv[6]; /* reserved */ 459 __u8 scr_reg_func; /* registration function (see below) */ 460 }; 461 462 enum fc_els_scr_func { 463 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 464 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 465 ELS_SCRF_FULL = 3, /* full registration */ 466 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 467 }; 468 469 /* 470 * ELS_RSCN - registered state change notification payload. 471 */ 472 struct fc_els_rscn { 473 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 474 __u8 rscn_page_len; /* page length (4) */ 475 __be16 rscn_plen; /* payload length including this word */ 476 477 /* followed by 4-byte generic affected Port_ID pages */ 478 }; 479 480 struct fc_els_rscn_page { 481 __u8 rscn_page_flags; /* event and address format */ 482 __u8 rscn_fid[3]; /* fabric ID */ 483 }; 484 485 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 486 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 487 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 488 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 489 490 enum fc_els_rscn_ev_qual { 491 ELS_EV_QUAL_NONE = 0, /* unspecified */ 492 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 493 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 494 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 495 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 496 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 497 }; 498 499 enum fc_els_rscn_addr_fmt { 500 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 501 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 502 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 503 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 504 }; 505 506 /* 507 * ELS_RNID - request Node ID. 508 */ 509 struct fc_els_rnid { 510 __u8 rnid_cmd; /* RNID opcode (0x78) */ 511 __u8 rnid_resv[3]; /* reserved */ 512 __u8 rnid_fmt; /* data format */ 513 __u8 rnid_resv2[3]; /* reserved */ 514 }; 515 516 /* 517 * Node Identification Data formats (rnid_fmt) 518 */ 519 enum fc_els_rnid_fmt { 520 ELS_RNIDF_NONE = 0, /* no specific identification data */ 521 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 522 }; 523 524 /* 525 * ELS_RNID response. 526 */ 527 struct fc_els_rnid_resp { 528 __u8 rnid_cmd; /* response code (LS_ACC) */ 529 __u8 rnid_resv[3]; /* reserved */ 530 __u8 rnid_fmt; /* data format */ 531 __u8 rnid_cid_len; /* common ID data length */ 532 __u8 rnid_resv2; /* reserved */ 533 __u8 rnid_sid_len; /* specific ID data length */ 534 }; 535 536 struct fc_els_rnid_cid { 537 __be64 rnid_wwpn; /* N port name */ 538 __be64 rnid_wwnn; /* node name */ 539 }; 540 541 struct fc_els_rnid_gen { 542 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 543 __be32 rnid_atype; /* associated type (see below) */ 544 __be32 rnid_phys_port; /* physical port number */ 545 __be32 rnid_att_nodes; /* number of attached nodes */ 546 __u8 rnid_node_mgmt; /* node management (see below) */ 547 __u8 rnid_ip_ver; /* IP version (see below) */ 548 __be16 rnid_prot_port; /* UDP / TCP port number */ 549 __be32 rnid_ip_addr[4]; /* IP address */ 550 __u8 rnid_resvd[2]; /* reserved */ 551 __be16 rnid_vend_spec; /* vendor-specific field */ 552 }; 553 554 enum fc_els_rnid_atype { 555 ELS_RNIDA_UNK = 0x01, /* unknown */ 556 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 557 ELS_RNIDA_HUB = 0x03, 558 ELS_RNIDA_SWITCH = 0x04, 559 ELS_RNIDA_GATEWAY = 0x05, 560 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 561 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 562 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 563 ELS_RNIDA_STORAGE = 0x09, 564 ELS_RNIDA_HOST = 0x0a, 565 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 566 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 567 ELS_RNIDA_NAS = 0x11, /* NAS server */ 568 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 569 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 570 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 571 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 572 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 573 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 574 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 575 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 576 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 577 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 578 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 579 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 580 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 581 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 582 }; 583 584 enum fc_els_rnid_mgmt { 585 ELS_RNIDM_SNMP = 0, 586 ELS_RNIDM_TELNET = 1, 587 ELS_RNIDM_HTTP = 2, 588 ELS_RNIDM_HTTPS = 3, 589 ELS_RNIDM_XML = 4, /* HTTP + XML */ 590 }; 591 592 enum fc_els_rnid_ipver { 593 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 594 ELS_RNIDIP_V4 = 1, /* IPv4 */ 595 ELS_RNIDIP_V6 = 2, /* IPv6 */ 596 }; 597 598 /* 599 * ELS RPL - Read Port List. 600 */ 601 struct fc_els_rpl { 602 __u8 rpl_cmd; /* command */ 603 __u8 rpl_resv[5]; /* reserved - must be zero */ 604 __be16 rpl_max_size; /* maximum response size or zero */ 605 __u8 rpl_resv1; /* reserved - must be zero */ 606 __u8 rpl_index[3]; /* starting index */ 607 }; 608 609 /* 610 * Port number block in RPL response. 611 */ 612 struct fc_els_pnb { 613 __be32 pnb_phys_pn; /* physical port number */ 614 __u8 pnb_resv; /* reserved */ 615 __u8 pnb_port_id[3]; /* port ID */ 616 __be64 pnb_wwpn; /* port name */ 617 }; 618 619 /* 620 * RPL LS_ACC response. 621 */ 622 struct fc_els_rpl_resp { 623 __u8 rpl_cmd; /* ELS_LS_ACC */ 624 __u8 rpl_resv1; /* reserved - must be zero */ 625 __be16 rpl_plen; /* payload length */ 626 __u8 rpl_resv2; /* reserved - must be zero */ 627 __u8 rpl_llen[3]; /* list length */ 628 __u8 rpl_resv3; /* reserved - must be zero */ 629 __u8 rpl_index[3]; /* starting index */ 630 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 631 }; 632 633 /* 634 * Link Error Status Block. 635 */ 636 struct fc_els_lesb { 637 __be32 lesb_link_fail; /* link failure count */ 638 __be32 lesb_sync_loss; /* loss of synchronization count */ 639 __be32 lesb_sig_loss; /* loss of signal count */ 640 __be32 lesb_prim_err; /* primitive sequence error count */ 641 __be32 lesb_inv_word; /* invalid transmission word count */ 642 __be32 lesb_inv_crc; /* invalid CRC count */ 643 }; 644 645 /* 646 * ELS RPS - Read Port Status Block request. 647 */ 648 struct fc_els_rps { 649 __u8 rps_cmd; /* command */ 650 __u8 rps_resv[2]; /* reserved - must be zero */ 651 __u8 rps_flag; /* flag - see below */ 652 __be64 rps_port_spec; /* port selection */ 653 }; 654 655 enum fc_els_rps_flag { 656 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 657 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 658 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 659 }; 660 661 /* 662 * ELS RPS LS_ACC response. 663 */ 664 struct fc_els_rps_resp { 665 __u8 rps_cmd; /* command - LS_ACC */ 666 __u8 rps_resv[2]; /* reserved - must be zero */ 667 __u8 rps_flag; /* flag - see below */ 668 __u8 rps_resv2[2]; /* reserved */ 669 __be16 rps_status; /* port status - see below */ 670 struct fc_els_lesb rps_lesb; /* link error status block */ 671 }; 672 673 enum fc_els_rps_resp_flag { 674 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 675 }; 676 677 enum fc_els_rps_resp_status { 678 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 679 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 680 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 681 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 682 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 683 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 684 }; 685 686 /* 687 * ELS LIRR - Link Incident Record Registration request. 688 */ 689 struct fc_els_lirr { 690 __u8 lirr_cmd; /* command */ 691 __u8 lirr_resv[3]; /* reserved - must be zero */ 692 __u8 lirr_func; /* registration function */ 693 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 694 __u8 lirr_resv2[2]; /* reserved - must be zero */ 695 }; 696 697 enum fc_els_lirr_func { 698 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 699 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 700 ELS_LIRR_CLEAR = 0xff /* clear registration */ 701 }; 702 703 /* 704 * ELS SRL - Scan Remote Loop request. 705 */ 706 struct fc_els_srl { 707 __u8 srl_cmd; /* command */ 708 __u8 srl_resv[3]; /* reserved - must be zero */ 709 __u8 srl_flag; /* flag - see below */ 710 __u8 srl_flag_param[3]; /* flag parameter */ 711 }; 712 713 enum fc_els_srl_flag { 714 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 715 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 716 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 717 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 718 }; 719 720 /* 721 * ELS RLS - Read Link Error Status Block request. 722 */ 723 struct fc_els_rls { 724 __u8 rls_cmd; /* command */ 725 __u8 rls_resv[4]; /* reserved - must be zero */ 726 __u8 rls_port_id[3]; /* port ID */ 727 }; 728 729 /* 730 * ELS RLS LS_ACC Response. 731 */ 732 struct fc_els_rls_resp { 733 __u8 rls_cmd; /* ELS_LS_ACC */ 734 __u8 rls_resv[3]; /* reserved - must be zero */ 735 struct fc_els_lesb rls_lesb; /* link error status block */ 736 }; 737 738 /* 739 * ELS RLIR - Registered Link Incident Report. 740 * This is followed by the CLIR and the CLID, described below. 741 */ 742 struct fc_els_rlir { 743 __u8 rlir_cmd; /* command */ 744 __u8 rlir_resv[3]; /* reserved - must be zero */ 745 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 746 __u8 rlir_clr_len; /* common link incident record length */ 747 __u8 rlir_cld_len; /* common link incident desc. length */ 748 __u8 rlir_slr_len; /* spec. link incident record length */ 749 }; 750 751 /* 752 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 753 */ 754 struct fc_els_clir { 755 __be64 clir_wwpn; /* incident port name */ 756 __be64 clir_wwnn; /* incident port node name */ 757 __u8 clir_port_type; /* incident port type */ 758 __u8 clir_port_id[3]; /* incident port ID */ 759 760 __be64 clir_conn_wwpn; /* connected port name */ 761 __be64 clir_conn_wwnn; /* connected node name */ 762 __be64 clir_fab_name; /* fabric name */ 763 __be32 clir_phys_port; /* physical port number */ 764 __be32 clir_trans_id; /* transaction ID */ 765 __u8 clir_resv[3]; /* reserved */ 766 __u8 clir_ts_fmt; /* time stamp format */ 767 __be64 clir_timestamp; /* time stamp */ 768 }; 769 770 /* 771 * CLIR clir_ts_fmt - time stamp format values. 772 */ 773 enum fc_els_clir_ts_fmt { 774 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 775 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 776 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 777 }; 778 779 /* 780 * Common Link Incident Descriptor - sent via RLIR. 781 */ 782 struct fc_els_clid { 783 __u8 clid_iq; /* incident qualifier flags */ 784 __u8 clid_ic; /* incident code */ 785 __be16 clid_epai; /* domain/area of ISL */ 786 }; 787 788 /* 789 * CLID incident qualifier flags. 790 */ 791 enum fc_els_clid_iq { 792 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 793 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 794 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 795 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 796 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 797 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 798 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 799 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 800 }; 801 802 /* 803 * CLID incident code. 804 */ 805 enum fc_els_clid_ic { 806 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 807 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 808 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 809 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 810 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 811 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 812 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 813 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 814 }; 815 816 #endif /* _FC_ELS_H_ */ 817