1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Copyright(c) 2007 Intel Corporation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Maintained at www.Open-FCoE.org 19 */ 20 21 #ifndef _FC_ELS_H_ 22 #define _FC_ELS_H_ 23 24 #include <linux/types.h> 25 26 /* 27 * Fibre Channel Switch - Enhanced Link Services definitions. 28 * From T11 FC-LS Rev 1.2 June 7, 2005. 29 */ 30 31 /* 32 * ELS Command codes - byte 0 of the frame payload 33 */ 34 enum fc_els_cmd { 35 ELS_LS_RJT = 0x01, /* ESL reject */ 36 ELS_LS_ACC = 0x02, /* ESL Accept */ 37 ELS_PLOGI = 0x03, /* N_Port login */ 38 ELS_FLOGI = 0x04, /* F_Port login */ 39 ELS_LOGO = 0x05, /* Logout */ 40 ELS_ABTX = 0x06, /* Abort exchange - obsolete */ 41 ELS_RCS = 0x07, /* read connection status */ 42 ELS_RES = 0x08, /* read exchange status block */ 43 ELS_RSS = 0x09, /* read sequence status block */ 44 ELS_RSI = 0x0a, /* read sequence initiative */ 45 ELS_ESTS = 0x0b, /* establish streaming */ 46 ELS_ESTC = 0x0c, /* estimate credit */ 47 ELS_ADVC = 0x0d, /* advise credit */ 48 ELS_RTV = 0x0e, /* read timeout value */ 49 ELS_RLS = 0x0f, /* read link error status block */ 50 ELS_ECHO = 0x10, /* echo */ 51 ELS_TEST = 0x11, /* test */ 52 ELS_RRQ = 0x12, /* reinstate recovery qualifier */ 53 ELS_REC = 0x13, /* read exchange concise */ 54 ELS_SRR = 0x14, /* sequence retransmission request */ 55 ELS_PRLI = 0x20, /* process login */ 56 ELS_PRLO = 0x21, /* process logout */ 57 ELS_SCN = 0x22, /* state change notification */ 58 ELS_TPLS = 0x23, /* test process login state */ 59 ELS_TPRLO = 0x24, /* third party process logout */ 60 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 61 ELS_GAID = 0x30, /* get alias_ID */ 62 ELS_FACT = 0x31, /* fabric activate alias_id */ 63 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 64 ELS_NACT = 0x33, /* N-port activate alias_id */ 65 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 66 ELS_QOSR = 0x40, /* quality of service request */ 67 ELS_RVCS = 0x41, /* read virtual circuit status */ 68 ELS_PDISC = 0x50, /* discover N_port service params */ 69 ELS_FDISC = 0x51, /* discover F_port service params */ 70 ELS_ADISC = 0x52, /* discover address */ 71 ELS_RNC = 0x53, /* report node cap (obs) */ 72 ELS_FARP_REQ = 0x54, /* FC ARP request */ 73 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 74 ELS_RPS = 0x56, /* read port status block */ 75 ELS_RPL = 0x57, /* read port list */ 76 ELS_RPBC = 0x58, /* read port buffer condition */ 77 ELS_FAN = 0x60, /* fabric address notification */ 78 ELS_RSCN = 0x61, /* registered state change notification */ 79 ELS_SCR = 0x62, /* state change registration */ 80 ELS_RNFT = 0x63, /* report node FC-4 types */ 81 ELS_CSR = 0x68, /* clock synch. request */ 82 ELS_CSU = 0x69, /* clock synch. update */ 83 ELS_LINIT = 0x70, /* loop initialize */ 84 ELS_LSTS = 0x72, /* loop status */ 85 ELS_RNID = 0x78, /* request node ID data */ 86 ELS_RLIR = 0x79, /* registered link incident report */ 87 ELS_LIRR = 0x7a, /* link incident record registration */ 88 ELS_SRL = 0x7b, /* scan remote loop */ 89 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 90 ELS_RPSC = 0x7d, /* report speed capabilities */ 91 ELS_QSA = 0x7e, /* query security attributes */ 92 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 93 ELS_LKA = 0x80, /* link keep-alive */ 94 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 95 }; 96 97 /* 98 * Initializer useful for decoding table. 99 * Please keep this in sync with the above definitions. 100 */ 101 #define FC_ELS_CMDS_INIT { \ 102 [ELS_LS_RJT] = "LS_RJT", \ 103 [ELS_LS_ACC] = "LS_ACC", \ 104 [ELS_PLOGI] = "PLOGI", \ 105 [ELS_FLOGI] = "FLOGI", \ 106 [ELS_LOGO] = "LOGO", \ 107 [ELS_ABTX] = "ABTX", \ 108 [ELS_RCS] = "RCS", \ 109 [ELS_RES] = "RES", \ 110 [ELS_RSS] = "RSS", \ 111 [ELS_RSI] = "RSI", \ 112 [ELS_ESTS] = "ESTS", \ 113 [ELS_ESTC] = "ESTC", \ 114 [ELS_ADVC] = "ADVC", \ 115 [ELS_RTV] = "RTV", \ 116 [ELS_RLS] = "RLS", \ 117 [ELS_ECHO] = "ECHO", \ 118 [ELS_TEST] = "TEST", \ 119 [ELS_RRQ] = "RRQ", \ 120 [ELS_REC] = "REC", \ 121 [ELS_SRR] = "SRR", \ 122 [ELS_PRLI] = "PRLI", \ 123 [ELS_PRLO] = "PRLO", \ 124 [ELS_SCN] = "SCN", \ 125 [ELS_TPLS] = "TPLS", \ 126 [ELS_TPRLO] = "TPRLO", \ 127 [ELS_LCLM] = "LCLM", \ 128 [ELS_GAID] = "GAID", \ 129 [ELS_FACT] = "FACT", \ 130 [ELS_FDACDT] = "FDACDT", \ 131 [ELS_NACT] = "NACT", \ 132 [ELS_NDACT] = "NDACT", \ 133 [ELS_QOSR] = "QOSR", \ 134 [ELS_RVCS] = "RVCS", \ 135 [ELS_PDISC] = "PDISC", \ 136 [ELS_FDISC] = "FDISC", \ 137 [ELS_ADISC] = "ADISC", \ 138 [ELS_RNC] = "RNC", \ 139 [ELS_FARP_REQ] = "FARP_REQ", \ 140 [ELS_FARP_REPL] = "FARP_REPL", \ 141 [ELS_RPS] = "RPS", \ 142 [ELS_RPL] = "RPL", \ 143 [ELS_RPBC] = "RPBC", \ 144 [ELS_FAN] = "FAN", \ 145 [ELS_RSCN] = "RSCN", \ 146 [ELS_SCR] = "SCR", \ 147 [ELS_RNFT] = "RNFT", \ 148 [ELS_CSR] = "CSR", \ 149 [ELS_CSU] = "CSU", \ 150 [ELS_LINIT] = "LINIT", \ 151 [ELS_LSTS] = "LSTS", \ 152 [ELS_RNID] = "RNID", \ 153 [ELS_RLIR] = "RLIR", \ 154 [ELS_LIRR] = "LIRR", \ 155 [ELS_SRL] = "SRL", \ 156 [ELS_SBRP] = "SBRP", \ 157 [ELS_RPSC] = "RPSC", \ 158 [ELS_QSA] = "QSA", \ 159 [ELS_EVFP] = "EVFP", \ 160 [ELS_LKA] = "LKA", \ 161 [ELS_AUTH_ELS] = "AUTH_ELS", \ 162 } 163 164 /* 165 * LS_ACC payload. 166 */ 167 struct fc_els_ls_acc { 168 __u8 la_cmd; /* command code ELS_LS_ACC */ 169 __u8 la_resv[3]; /* reserved */ 170 }; 171 172 /* 173 * ELS reject payload. 174 */ 175 struct fc_els_ls_rjt { 176 __u8 er_cmd; /* command code ELS_LS_RJT */ 177 __u8 er_resv[4]; /* reserved must be zero */ 178 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 179 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 180 __u8 er_vendor; /* vendor specific code */ 181 }; 182 183 /* 184 * ELS reject reason codes (er_reason). 185 */ 186 enum fc_els_rjt_reason { 187 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 188 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 189 ELS_RJT_LOGIC = 0x03, /* logical error */ 190 ELS_RJT_BUSY = 0x05, /* logical busy */ 191 ELS_RJT_PROT = 0x07, /* protocol error */ 192 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 193 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 194 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 195 ELS_RJT_FIP = 0x20, /* FIP error */ 196 ELS_RJT_VENDOR = 0xff, /* vendor specific error */ 197 }; 198 199 200 /* 201 * reason code explanation (er_explan). 202 */ 203 enum fc_els_rjt_explan { 204 ELS_EXPL_NONE = 0x00, /* No additional explanation */ 205 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ 206 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ 207 ELS_EXPL_AH = 0x11, /* invalid association header */ 208 ELS_EXPL_AH_REQ = 0x13, /* association_header required */ 209 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ 210 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ 211 ELS_EXPL_INPROG = 0x19, /* Request already in progress */ 212 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ 213 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ 214 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ 215 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ 216 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ 217 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ 218 /* TBD - above definitions incomplete */ 219 }; 220 221 /* 222 * Common service parameters (N ports). 223 */ 224 struct fc_els_csp { 225 __u8 sp_hi_ver; /* highest version supported (obs.) */ 226 __u8 sp_lo_ver; /* highest version supported (obs.) */ 227 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 228 __be16 sp_features; /* common feature flags */ 229 __be16 sp_bb_data; /* b-b state number and data field sz */ 230 union { 231 struct { 232 __be16 _sp_tot_seq; /* total concurrent sequences */ 233 __be16 _sp_rel_off; /* rel. offset by info cat */ 234 } sp_plogi; 235 struct { 236 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 237 } sp_flogi_acc; 238 } sp_u; 239 __be32 sp_e_d_tov; /* error detect timeout value */ 240 }; 241 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 242 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 243 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 244 245 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 246 247 /* 248 * Minimum and maximum values for max data field size in service parameters. 249 */ 250 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 251 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 252 253 /* 254 * sp_features 255 */ 256 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ 257 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ 258 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 259 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 260 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 261 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ 262 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 263 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 264 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 265 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 266 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 267 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 268 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 269 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 270 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 271 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 272 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 273 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 274 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 275 276 /* 277 * Class-specific service parameters. 278 */ 279 struct fc_els_cssp { 280 __be16 cp_class; /* class flags */ 281 __be16 cp_init; /* initiator flags */ 282 __be16 cp_recip; /* recipient flags */ 283 __be16 cp_rdfs; /* receive data field size */ 284 __be16 cp_con_seq; /* concurrent sequences */ 285 __be16 cp_ee_cred; /* N-port end-to-end credit */ 286 __u8 cp_resv1; /* reserved */ 287 __u8 cp_open_seq; /* open sequences per exchange */ 288 __u8 _cp_resv2[2]; /* reserved */ 289 }; 290 291 /* 292 * cp_class flags. 293 */ 294 #define FC_CPC_VALID 0x8000 /* class valid */ 295 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 296 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 297 #define FC_CPC_CAMP 0x0200 /* camp-on */ 298 #define FC_CPC_PRI 0x0080 /* priority */ 299 300 /* 301 * cp_init flags. 302 * (TBD: not all flags defined here). 303 */ 304 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 305 306 /* 307 * cp_recip flags. 308 */ 309 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 310 311 /* 312 * NFC_ELS_FLOGI: Fabric login request. 313 * NFC_ELS_PLOGI: Port login request (same format). 314 */ 315 struct fc_els_flogi { 316 __u8 fl_cmd; /* command */ 317 __u8 _fl_resvd[3]; /* must be zero */ 318 struct fc_els_csp fl_csp; /* common service parameters */ 319 __be64 fl_wwpn; /* port name */ 320 __be64 fl_wwnn; /* node name */ 321 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 322 __u8 fl_vend[16]; /* vendor version level */ 323 } __attribute__((__packed__)); 324 325 /* 326 * Process login service parameter page. 327 */ 328 struct fc_els_spp { 329 __u8 spp_type; /* type code or common service params */ 330 __u8 spp_type_ext; /* type code extension */ 331 __u8 spp_flags; 332 __u8 _spp_resvd; 333 __be32 spp_orig_pa; /* originator process associator */ 334 __be32 spp_resp_pa; /* responder process associator */ 335 __be32 spp_params; /* service parameters */ 336 }; 337 338 /* 339 * spp_flags. 340 */ 341 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 342 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 343 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 344 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 345 346 /* 347 * SPP response code in spp_flags - lower 4 bits. 348 */ 349 enum fc_els_spp_resp { 350 FC_SPP_RESP_ACK = 1, /* request executed */ 351 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 352 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 353 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 354 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 355 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 356 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 357 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 358 }; 359 360 /* 361 * ELS_RRQ - Reinstate Recovery Qualifier 362 */ 363 struct fc_els_rrq { 364 __u8 rrq_cmd; /* command (0x12) */ 365 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 366 __u8 rrq_resvd; /* reserved */ 367 __u8 rrq_s_id[3]; /* originator FID */ 368 __be16 rrq_ox_id; /* originator exchange ID */ 369 __be16 rrq_rx_id; /* responders exchange ID */ 370 }; 371 372 /* 373 * ELS_REC - Read exchange concise. 374 */ 375 struct fc_els_rec { 376 __u8 rec_cmd; /* command (0x13) */ 377 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 378 __u8 rec_resvd; /* reserved */ 379 __u8 rec_s_id[3]; /* originator FID */ 380 __be16 rec_ox_id; /* originator exchange ID */ 381 __be16 rec_rx_id; /* responders exchange ID */ 382 }; 383 384 /* 385 * ELS_REC LS_ACC payload. 386 */ 387 struct fc_els_rec_acc { 388 __u8 reca_cmd; /* accept (0x02) */ 389 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 390 __be16 reca_ox_id; /* originator exchange ID */ 391 __be16 reca_rx_id; /* responders exchange ID */ 392 __u8 reca_resvd1; /* reserved */ 393 __u8 reca_ofid[3]; /* originator FID */ 394 __u8 reca_resvd2; /* reserved */ 395 __u8 reca_rfid[3]; /* responder FID */ 396 __be32 reca_fc4value; /* FC4 value */ 397 __be32 reca_e_stat; /* ESB (exchange status block) status */ 398 }; 399 400 /* 401 * ELS_PRLI - Process login request and response. 402 */ 403 struct fc_els_prli { 404 __u8 prli_cmd; /* command */ 405 __u8 prli_spp_len; /* length of each serv. parm. page */ 406 __be16 prli_len; /* length of entire payload */ 407 /* service parameter pages follow */ 408 }; 409 410 /* 411 * ELS_PRLO - Process logout request and response. 412 */ 413 struct fc_els_prlo { 414 __u8 prlo_cmd; /* command */ 415 __u8 prlo_obs; /* obsolete, but shall be set to 10h */ 416 __be16 prlo_len; /* payload length */ 417 }; 418 419 /* 420 * ELS_ADISC payload 421 */ 422 struct fc_els_adisc { 423 __u8 adisc_cmd; 424 __u8 adisc_resv[3]; 425 __u8 adisc_resv1; 426 __u8 adisc_hard_addr[3]; 427 __be64 adisc_wwpn; 428 __be64 adisc_wwnn; 429 __u8 adisc_resv2; 430 __u8 adisc_port_id[3]; 431 } __attribute__((__packed__)); 432 433 /* 434 * ELS_LOGO - process or fabric logout. 435 */ 436 struct fc_els_logo { 437 __u8 fl_cmd; /* command code */ 438 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 439 __u8 fl_resvd; /* reserved */ 440 __u8 fl_n_port_id[3];/* N port ID */ 441 __be64 fl_n_port_wwn; /* port name */ 442 }; 443 444 /* 445 * ELS_RTV - read timeout value. 446 */ 447 struct fc_els_rtv { 448 __u8 rtv_cmd; /* command code 0x0e */ 449 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 450 }; 451 452 /* 453 * LS_ACC for ELS_RTV - read timeout value. 454 */ 455 struct fc_els_rtv_acc { 456 __u8 rtv_cmd; /* command code 0x02 */ 457 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 458 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 459 __be32 rtv_e_d_tov; /* error detection timeout value */ 460 __be32 rtv_toq; /* timeout qualifier (see below) */ 461 }; 462 463 /* 464 * rtv_toq bits. 465 */ 466 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 467 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 468 469 /* 470 * ELS_SCR - state change registration payload. 471 */ 472 struct fc_els_scr { 473 __u8 scr_cmd; /* command code */ 474 __u8 scr_resv[6]; /* reserved */ 475 __u8 scr_reg_func; /* registration function (see below) */ 476 }; 477 478 enum fc_els_scr_func { 479 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 480 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 481 ELS_SCRF_FULL = 3, /* full registration */ 482 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 483 }; 484 485 /* 486 * ELS_RSCN - registered state change notification payload. 487 */ 488 struct fc_els_rscn { 489 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 490 __u8 rscn_page_len; /* page length (4) */ 491 __be16 rscn_plen; /* payload length including this word */ 492 493 /* followed by 4-byte generic affected Port_ID pages */ 494 }; 495 496 struct fc_els_rscn_page { 497 __u8 rscn_page_flags; /* event and address format */ 498 __u8 rscn_fid[3]; /* fabric ID */ 499 }; 500 501 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 502 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 503 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 504 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 505 506 enum fc_els_rscn_ev_qual { 507 ELS_EV_QUAL_NONE = 0, /* unspecified */ 508 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 509 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 510 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 511 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 512 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 513 }; 514 515 enum fc_els_rscn_addr_fmt { 516 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 517 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 518 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 519 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 520 }; 521 522 /* 523 * ELS_RNID - request Node ID. 524 */ 525 struct fc_els_rnid { 526 __u8 rnid_cmd; /* RNID opcode (0x78) */ 527 __u8 rnid_resv[3]; /* reserved */ 528 __u8 rnid_fmt; /* data format */ 529 __u8 rnid_resv2[3]; /* reserved */ 530 }; 531 532 /* 533 * Node Identification Data formats (rnid_fmt) 534 */ 535 enum fc_els_rnid_fmt { 536 ELS_RNIDF_NONE = 0, /* no specific identification data */ 537 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 538 }; 539 540 /* 541 * ELS_RNID response. 542 */ 543 struct fc_els_rnid_resp { 544 __u8 rnid_cmd; /* response code (LS_ACC) */ 545 __u8 rnid_resv[3]; /* reserved */ 546 __u8 rnid_fmt; /* data format */ 547 __u8 rnid_cid_len; /* common ID data length */ 548 __u8 rnid_resv2; /* reserved */ 549 __u8 rnid_sid_len; /* specific ID data length */ 550 }; 551 552 struct fc_els_rnid_cid { 553 __be64 rnid_wwpn; /* N port name */ 554 __be64 rnid_wwnn; /* node name */ 555 }; 556 557 struct fc_els_rnid_gen { 558 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 559 __be32 rnid_atype; /* associated type (see below) */ 560 __be32 rnid_phys_port; /* physical port number */ 561 __be32 rnid_att_nodes; /* number of attached nodes */ 562 __u8 rnid_node_mgmt; /* node management (see below) */ 563 __u8 rnid_ip_ver; /* IP version (see below) */ 564 __be16 rnid_prot_port; /* UDP / TCP port number */ 565 __be32 rnid_ip_addr[4]; /* IP address */ 566 __u8 rnid_resvd[2]; /* reserved */ 567 __be16 rnid_vend_spec; /* vendor-specific field */ 568 }; 569 570 enum fc_els_rnid_atype { 571 ELS_RNIDA_UNK = 0x01, /* unknown */ 572 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 573 ELS_RNIDA_HUB = 0x03, 574 ELS_RNIDA_SWITCH = 0x04, 575 ELS_RNIDA_GATEWAY = 0x05, 576 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 577 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 578 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 579 ELS_RNIDA_STORAGE = 0x09, 580 ELS_RNIDA_HOST = 0x0a, 581 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 582 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 583 ELS_RNIDA_NAS = 0x11, /* NAS server */ 584 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 585 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 586 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 587 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 588 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 589 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 590 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 591 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 592 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 593 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 594 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 595 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 596 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 597 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 598 }; 599 600 enum fc_els_rnid_mgmt { 601 ELS_RNIDM_SNMP = 0, 602 ELS_RNIDM_TELNET = 1, 603 ELS_RNIDM_HTTP = 2, 604 ELS_RNIDM_HTTPS = 3, 605 ELS_RNIDM_XML = 4, /* HTTP + XML */ 606 }; 607 608 enum fc_els_rnid_ipver { 609 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 610 ELS_RNIDIP_V4 = 1, /* IPv4 */ 611 ELS_RNIDIP_V6 = 2, /* IPv6 */ 612 }; 613 614 /* 615 * ELS RPL - Read Port List. 616 */ 617 struct fc_els_rpl { 618 __u8 rpl_cmd; /* command */ 619 __u8 rpl_resv[5]; /* reserved - must be zero */ 620 __be16 rpl_max_size; /* maximum response size or zero */ 621 __u8 rpl_resv1; /* reserved - must be zero */ 622 __u8 rpl_index[3]; /* starting index */ 623 }; 624 625 /* 626 * Port number block in RPL response. 627 */ 628 struct fc_els_pnb { 629 __be32 pnb_phys_pn; /* physical port number */ 630 __u8 pnb_resv; /* reserved */ 631 __u8 pnb_port_id[3]; /* port ID */ 632 __be64 pnb_wwpn; /* port name */ 633 }; 634 635 /* 636 * RPL LS_ACC response. 637 */ 638 struct fc_els_rpl_resp { 639 __u8 rpl_cmd; /* ELS_LS_ACC */ 640 __u8 rpl_resv1; /* reserved - must be zero */ 641 __be16 rpl_plen; /* payload length */ 642 __u8 rpl_resv2; /* reserved - must be zero */ 643 __u8 rpl_llen[3]; /* list length */ 644 __u8 rpl_resv3; /* reserved - must be zero */ 645 __u8 rpl_index[3]; /* starting index */ 646 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 647 }; 648 649 /* 650 * Link Error Status Block. 651 */ 652 struct fc_els_lesb { 653 __be32 lesb_link_fail; /* link failure count */ 654 __be32 lesb_sync_loss; /* loss of synchronization count */ 655 __be32 lesb_sig_loss; /* loss of signal count */ 656 __be32 lesb_prim_err; /* primitive sequence error count */ 657 __be32 lesb_inv_word; /* invalid transmission word count */ 658 __be32 lesb_inv_crc; /* invalid CRC count */ 659 }; 660 661 /* 662 * ELS RPS - Read Port Status Block request. 663 */ 664 struct fc_els_rps { 665 __u8 rps_cmd; /* command */ 666 __u8 rps_resv[2]; /* reserved - must be zero */ 667 __u8 rps_flag; /* flag - see below */ 668 __be64 rps_port_spec; /* port selection */ 669 }; 670 671 enum fc_els_rps_flag { 672 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 673 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 674 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 675 }; 676 677 /* 678 * ELS RPS LS_ACC response. 679 */ 680 struct fc_els_rps_resp { 681 __u8 rps_cmd; /* command - LS_ACC */ 682 __u8 rps_resv[2]; /* reserved - must be zero */ 683 __u8 rps_flag; /* flag - see below */ 684 __u8 rps_resv2[2]; /* reserved */ 685 __be16 rps_status; /* port status - see below */ 686 struct fc_els_lesb rps_lesb; /* link error status block */ 687 }; 688 689 enum fc_els_rps_resp_flag { 690 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 691 }; 692 693 enum fc_els_rps_resp_status { 694 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 695 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 696 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 697 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 698 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 699 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 700 }; 701 702 /* 703 * ELS LIRR - Link Incident Record Registration request. 704 */ 705 struct fc_els_lirr { 706 __u8 lirr_cmd; /* command */ 707 __u8 lirr_resv[3]; /* reserved - must be zero */ 708 __u8 lirr_func; /* registration function */ 709 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 710 __u8 lirr_resv2[2]; /* reserved - must be zero */ 711 }; 712 713 enum fc_els_lirr_func { 714 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 715 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 716 ELS_LIRR_CLEAR = 0xff /* clear registration */ 717 }; 718 719 /* 720 * ELS SRL - Scan Remote Loop request. 721 */ 722 struct fc_els_srl { 723 __u8 srl_cmd; /* command */ 724 __u8 srl_resv[3]; /* reserved - must be zero */ 725 __u8 srl_flag; /* flag - see below */ 726 __u8 srl_flag_param[3]; /* flag parameter */ 727 }; 728 729 enum fc_els_srl_flag { 730 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 731 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 732 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 733 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 734 }; 735 736 /* 737 * ELS RLS - Read Link Error Status Block request. 738 */ 739 struct fc_els_rls { 740 __u8 rls_cmd; /* command */ 741 __u8 rls_resv[4]; /* reserved - must be zero */ 742 __u8 rls_port_id[3]; /* port ID */ 743 }; 744 745 /* 746 * ELS RLS LS_ACC Response. 747 */ 748 struct fc_els_rls_resp { 749 __u8 rls_cmd; /* ELS_LS_ACC */ 750 __u8 rls_resv[3]; /* reserved - must be zero */ 751 struct fc_els_lesb rls_lesb; /* link error status block */ 752 }; 753 754 /* 755 * ELS RLIR - Registered Link Incident Report. 756 * This is followed by the CLIR and the CLID, described below. 757 */ 758 struct fc_els_rlir { 759 __u8 rlir_cmd; /* command */ 760 __u8 rlir_resv[3]; /* reserved - must be zero */ 761 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 762 __u8 rlir_clr_len; /* common link incident record length */ 763 __u8 rlir_cld_len; /* common link incident desc. length */ 764 __u8 rlir_slr_len; /* spec. link incident record length */ 765 }; 766 767 /* 768 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 769 */ 770 struct fc_els_clir { 771 __be64 clir_wwpn; /* incident port name */ 772 __be64 clir_wwnn; /* incident port node name */ 773 __u8 clir_port_type; /* incident port type */ 774 __u8 clir_port_id[3]; /* incident port ID */ 775 776 __be64 clir_conn_wwpn; /* connected port name */ 777 __be64 clir_conn_wwnn; /* connected node name */ 778 __be64 clir_fab_name; /* fabric name */ 779 __be32 clir_phys_port; /* physical port number */ 780 __be32 clir_trans_id; /* transaction ID */ 781 __u8 clir_resv[3]; /* reserved */ 782 __u8 clir_ts_fmt; /* time stamp format */ 783 __be64 clir_timestamp; /* time stamp */ 784 }; 785 786 /* 787 * CLIR clir_ts_fmt - time stamp format values. 788 */ 789 enum fc_els_clir_ts_fmt { 790 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 791 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 792 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 793 }; 794 795 /* 796 * Common Link Incident Descriptor - sent via RLIR. 797 */ 798 struct fc_els_clid { 799 __u8 clid_iq; /* incident qualifier flags */ 800 __u8 clid_ic; /* incident code */ 801 __be16 clid_epai; /* domain/area of ISL */ 802 }; 803 804 /* 805 * CLID incident qualifier flags. 806 */ 807 enum fc_els_clid_iq { 808 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 809 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 810 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 811 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 812 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 813 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 814 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 815 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 816 }; 817 818 /* 819 * CLID incident code. 820 */ 821 enum fc_els_clid_ic { 822 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 823 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 824 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 825 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 826 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 827 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 828 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 829 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 830 }; 831 832 #endif /* _FC_ELS_H_ */ 833
