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_FPIN = 0x16, /* Fabric Performance Impact Notification */ 56 ELS_PRLI = 0x20, /* process login */ 57 ELS_PRLO = 0x21, /* process logout */ 58 ELS_SCN = 0x22, /* state change notification */ 59 ELS_TPLS = 0x23, /* test process login state */ 60 ELS_TPRLO = 0x24, /* third party process logout */ 61 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 62 ELS_GAID = 0x30, /* get alias_ID */ 63 ELS_FACT = 0x31, /* fabric activate alias_id */ 64 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 65 ELS_NACT = 0x33, /* N-port activate alias_id */ 66 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 67 ELS_QOSR = 0x40, /* quality of service request */ 68 ELS_RVCS = 0x41, /* read virtual circuit status */ 69 ELS_PDISC = 0x50, /* discover N_port service params */ 70 ELS_FDISC = 0x51, /* discover F_port service params */ 71 ELS_ADISC = 0x52, /* discover address */ 72 ELS_RNC = 0x53, /* report node cap (obs) */ 73 ELS_FARP_REQ = 0x54, /* FC ARP request */ 74 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 75 ELS_RPS = 0x56, /* read port status block */ 76 ELS_RPL = 0x57, /* read port list */ 77 ELS_RPBC = 0x58, /* read port buffer condition */ 78 ELS_FAN = 0x60, /* fabric address notification */ 79 ELS_RSCN = 0x61, /* registered state change notification */ 80 ELS_SCR = 0x62, /* state change registration */ 81 ELS_RNFT = 0x63, /* report node FC-4 types */ 82 ELS_CSR = 0x68, /* clock synch. request */ 83 ELS_CSU = 0x69, /* clock synch. update */ 84 ELS_LINIT = 0x70, /* loop initialize */ 85 ELS_LSTS = 0x72, /* loop status */ 86 ELS_RNID = 0x78, /* request node ID data */ 87 ELS_RLIR = 0x79, /* registered link incident report */ 88 ELS_LIRR = 0x7a, /* link incident record registration */ 89 ELS_SRL = 0x7b, /* scan remote loop */ 90 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 91 ELS_RPSC = 0x7d, /* report speed capabilities */ 92 ELS_QSA = 0x7e, /* query security attributes */ 93 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 94 ELS_LKA = 0x80, /* link keep-alive */ 95 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 96 }; 97 98 /* 99 * Initializer useful for decoding table. 100 * Please keep this in sync with the above definitions. 101 */ 102 #define FC_ELS_CMDS_INIT { \ 103 [ELS_LS_RJT] = "LS_RJT", \ 104 [ELS_LS_ACC] = "LS_ACC", \ 105 [ELS_PLOGI] = "PLOGI", \ 106 [ELS_FLOGI] = "FLOGI", \ 107 [ELS_LOGO] = "LOGO", \ 108 [ELS_ABTX] = "ABTX", \ 109 [ELS_RCS] = "RCS", \ 110 [ELS_RES] = "RES", \ 111 [ELS_RSS] = "RSS", \ 112 [ELS_RSI] = "RSI", \ 113 [ELS_ESTS] = "ESTS", \ 114 [ELS_ESTC] = "ESTC", \ 115 [ELS_ADVC] = "ADVC", \ 116 [ELS_RTV] = "RTV", \ 117 [ELS_RLS] = "RLS", \ 118 [ELS_ECHO] = "ECHO", \ 119 [ELS_TEST] = "TEST", \ 120 [ELS_RRQ] = "RRQ", \ 121 [ELS_REC] = "REC", \ 122 [ELS_SRR] = "SRR", \ 123 [ELS_FPIN] = "FPIN", \ 124 [ELS_PRLI] = "PRLI", \ 125 [ELS_PRLO] = "PRLO", \ 126 [ELS_SCN] = "SCN", \ 127 [ELS_TPLS] = "TPLS", \ 128 [ELS_TPRLO] = "TPRLO", \ 129 [ELS_LCLM] = "LCLM", \ 130 [ELS_GAID] = "GAID", \ 131 [ELS_FACT] = "FACT", \ 132 [ELS_FDACDT] = "FDACDT", \ 133 [ELS_NACT] = "NACT", \ 134 [ELS_NDACT] = "NDACT", \ 135 [ELS_QOSR] = "QOSR", \ 136 [ELS_RVCS] = "RVCS", \ 137 [ELS_PDISC] = "PDISC", \ 138 [ELS_FDISC] = "FDISC", \ 139 [ELS_ADISC] = "ADISC", \ 140 [ELS_RNC] = "RNC", \ 141 [ELS_FARP_REQ] = "FARP_REQ", \ 142 [ELS_FARP_REPL] = "FARP_REPL", \ 143 [ELS_RPS] = "RPS", \ 144 [ELS_RPL] = "RPL", \ 145 [ELS_RPBC] = "RPBC", \ 146 [ELS_FAN] = "FAN", \ 147 [ELS_RSCN] = "RSCN", \ 148 [ELS_SCR] = "SCR", \ 149 [ELS_RNFT] = "RNFT", \ 150 [ELS_CSR] = "CSR", \ 151 [ELS_CSU] = "CSU", \ 152 [ELS_LINIT] = "LINIT", \ 153 [ELS_LSTS] = "LSTS", \ 154 [ELS_RNID] = "RNID", \ 155 [ELS_RLIR] = "RLIR", \ 156 [ELS_LIRR] = "LIRR", \ 157 [ELS_SRL] = "SRL", \ 158 [ELS_SBRP] = "SBRP", \ 159 [ELS_RPSC] = "RPSC", \ 160 [ELS_QSA] = "QSA", \ 161 [ELS_EVFP] = "EVFP", \ 162 [ELS_LKA] = "LKA", \ 163 [ELS_AUTH_ELS] = "AUTH_ELS", \ 164 } 165 166 /* 167 * LS_ACC payload. 168 */ 169 struct fc_els_ls_acc { 170 __u8 la_cmd; /* command code ELS_LS_ACC */ 171 __u8 la_resv[3]; /* reserved */ 172 }; 173 174 /* 175 * ELS reject payload. 176 */ 177 struct fc_els_ls_rjt { 178 __u8 er_cmd; /* command code ELS_LS_RJT */ 179 __u8 er_resv[4]; /* reserved must be zero */ 180 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 181 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 182 __u8 er_vendor; /* vendor specific code */ 183 }; 184 185 /* 186 * ELS reject reason codes (er_reason). 187 */ 188 enum fc_els_rjt_reason { 189 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 190 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 191 ELS_RJT_LOGIC = 0x03, /* logical error */ 192 ELS_RJT_BUSY = 0x05, /* logical busy */ 193 ELS_RJT_PROT = 0x07, /* protocol error */ 194 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 195 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 196 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 197 ELS_RJT_FIP = 0x20, /* FIP error */ 198 ELS_RJT_VENDOR = 0xff, /* vendor specific error */ 199 }; 200 201 202 /* 203 * reason code explanation (er_explan). 204 */ 205 enum fc_els_rjt_explan { 206 ELS_EXPL_NONE = 0x00, /* No additional explanation */ 207 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ 208 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ 209 ELS_EXPL_AH = 0x11, /* invalid association header */ 210 ELS_EXPL_AH_REQ = 0x13, /* association_header required */ 211 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ 212 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ 213 ELS_EXPL_INPROG = 0x19, /* Request already in progress */ 214 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ 215 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ 216 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ 217 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ 218 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ 219 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ 220 /* TBD - above definitions incomplete */ 221 }; 222 223 /* 224 * Common service parameters (N ports). 225 */ 226 struct fc_els_csp { 227 __u8 sp_hi_ver; /* highest version supported (obs.) */ 228 __u8 sp_lo_ver; /* highest version supported (obs.) */ 229 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 230 __be16 sp_features; /* common feature flags */ 231 __be16 sp_bb_data; /* b-b state number and data field sz */ 232 union { 233 struct { 234 __be16 _sp_tot_seq; /* total concurrent sequences */ 235 __be16 _sp_rel_off; /* rel. offset by info cat */ 236 } sp_plogi; 237 struct { 238 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 239 } sp_flogi_acc; 240 } sp_u; 241 __be32 sp_e_d_tov; /* error detect timeout value */ 242 }; 243 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 244 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 245 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 246 247 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 248 249 /* 250 * Minimum and maximum values for max data field size in service parameters. 251 */ 252 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 253 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 254 255 /* 256 * sp_features 257 */ 258 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ 259 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ 260 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 261 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 262 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 263 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ 264 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 265 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 266 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 267 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 268 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 269 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 270 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 271 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 272 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 273 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 274 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 275 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 276 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 277 278 /* 279 * Class-specific service parameters. 280 */ 281 struct fc_els_cssp { 282 __be16 cp_class; /* class flags */ 283 __be16 cp_init; /* initiator flags */ 284 __be16 cp_recip; /* recipient flags */ 285 __be16 cp_rdfs; /* receive data field size */ 286 __be16 cp_con_seq; /* concurrent sequences */ 287 __be16 cp_ee_cred; /* N-port end-to-end credit */ 288 __u8 cp_resv1; /* reserved */ 289 __u8 cp_open_seq; /* open sequences per exchange */ 290 __u8 _cp_resv2[2]; /* reserved */ 291 }; 292 293 /* 294 * cp_class flags. 295 */ 296 #define FC_CPC_VALID 0x8000 /* class valid */ 297 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 298 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 299 #define FC_CPC_CAMP 0x0200 /* camp-on */ 300 #define FC_CPC_PRI 0x0080 /* priority */ 301 302 /* 303 * cp_init flags. 304 * (TBD: not all flags defined here). 305 */ 306 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 307 308 /* 309 * cp_recip flags. 310 */ 311 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 312 313 /* 314 * NFC_ELS_FLOGI: Fabric login request. 315 * NFC_ELS_PLOGI: Port login request (same format). 316 */ 317 struct fc_els_flogi { 318 __u8 fl_cmd; /* command */ 319 __u8 _fl_resvd[3]; /* must be zero */ 320 struct fc_els_csp fl_csp; /* common service parameters */ 321 __be64 fl_wwpn; /* port name */ 322 __be64 fl_wwnn; /* node name */ 323 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 324 __u8 fl_vend[16]; /* vendor version level */ 325 } __attribute__((__packed__)); 326 327 /* 328 * Process login service parameter page. 329 */ 330 struct fc_els_spp { 331 __u8 spp_type; /* type code or common service params */ 332 __u8 spp_type_ext; /* type code extension */ 333 __u8 spp_flags; 334 __u8 _spp_resvd; 335 __be32 spp_orig_pa; /* originator process associator */ 336 __be32 spp_resp_pa; /* responder process associator */ 337 __be32 spp_params; /* service parameters */ 338 }; 339 340 /* 341 * spp_flags. 342 */ 343 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 344 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 345 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 346 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 347 348 /* 349 * SPP response code in spp_flags - lower 4 bits. 350 */ 351 enum fc_els_spp_resp { 352 FC_SPP_RESP_ACK = 1, /* request executed */ 353 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 354 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 355 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 356 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 357 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 358 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 359 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 360 }; 361 362 /* 363 * ELS_RRQ - Reinstate Recovery Qualifier 364 */ 365 struct fc_els_rrq { 366 __u8 rrq_cmd; /* command (0x12) */ 367 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 368 __u8 rrq_resvd; /* reserved */ 369 __u8 rrq_s_id[3]; /* originator FID */ 370 __be16 rrq_ox_id; /* originator exchange ID */ 371 __be16 rrq_rx_id; /* responders exchange ID */ 372 }; 373 374 /* 375 * ELS_REC - Read exchange concise. 376 */ 377 struct fc_els_rec { 378 __u8 rec_cmd; /* command (0x13) */ 379 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 380 __u8 rec_resvd; /* reserved */ 381 __u8 rec_s_id[3]; /* originator FID */ 382 __be16 rec_ox_id; /* originator exchange ID */ 383 __be16 rec_rx_id; /* responders exchange ID */ 384 }; 385 386 /* 387 * ELS_REC LS_ACC payload. 388 */ 389 struct fc_els_rec_acc { 390 __u8 reca_cmd; /* accept (0x02) */ 391 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 392 __be16 reca_ox_id; /* originator exchange ID */ 393 __be16 reca_rx_id; /* responders exchange ID */ 394 __u8 reca_resvd1; /* reserved */ 395 __u8 reca_ofid[3]; /* originator FID */ 396 __u8 reca_resvd2; /* reserved */ 397 __u8 reca_rfid[3]; /* responder FID */ 398 __be32 reca_fc4value; /* FC4 value */ 399 __be32 reca_e_stat; /* ESB (exchange status block) status */ 400 }; 401 402 /* 403 * ELS_PRLI - Process login request and response. 404 */ 405 struct fc_els_prli { 406 __u8 prli_cmd; /* command */ 407 __u8 prli_spp_len; /* length of each serv. parm. page */ 408 __be16 prli_len; /* length of entire payload */ 409 /* service parameter pages follow */ 410 }; 411 412 /* 413 * ELS_PRLO - Process logout request and response. 414 */ 415 struct fc_els_prlo { 416 __u8 prlo_cmd; /* command */ 417 __u8 prlo_obs; /* obsolete, but shall be set to 10h */ 418 __be16 prlo_len; /* payload length */ 419 }; 420 421 /* 422 * ELS_ADISC payload 423 */ 424 struct fc_els_adisc { 425 __u8 adisc_cmd; 426 __u8 adisc_resv[3]; 427 __u8 adisc_resv1; 428 __u8 adisc_hard_addr[3]; 429 __be64 adisc_wwpn; 430 __be64 adisc_wwnn; 431 __u8 adisc_resv2; 432 __u8 adisc_port_id[3]; 433 } __attribute__((__packed__)); 434 435 /* 436 * ELS_LOGO - process or fabric logout. 437 */ 438 struct fc_els_logo { 439 __u8 fl_cmd; /* command code */ 440 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 441 __u8 fl_resvd; /* reserved */ 442 __u8 fl_n_port_id[3];/* N port ID */ 443 __be64 fl_n_port_wwn; /* port name */ 444 }; 445 446 /* 447 * ELS_RTV - read timeout value. 448 */ 449 struct fc_els_rtv { 450 __u8 rtv_cmd; /* command code 0x0e */ 451 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 452 }; 453 454 /* 455 * LS_ACC for ELS_RTV - read timeout value. 456 */ 457 struct fc_els_rtv_acc { 458 __u8 rtv_cmd; /* command code 0x02 */ 459 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 460 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 461 __be32 rtv_e_d_tov; /* error detection timeout value */ 462 __be32 rtv_toq; /* timeout qualifier (see below) */ 463 }; 464 465 /* 466 * rtv_toq bits. 467 */ 468 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 469 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 470 471 /* 472 * ELS_SCR - state change registration payload. 473 */ 474 struct fc_els_scr { 475 __u8 scr_cmd; /* command code */ 476 __u8 scr_resv[6]; /* reserved */ 477 __u8 scr_reg_func; /* registration function (see below) */ 478 }; 479 480 enum fc_els_scr_func { 481 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 482 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 483 ELS_SCRF_FULL = 3, /* full registration */ 484 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 485 }; 486 487 /* 488 * ELS_RSCN - registered state change notification payload. 489 */ 490 struct fc_els_rscn { 491 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 492 __u8 rscn_page_len; /* page length (4) */ 493 __be16 rscn_plen; /* payload length including this word */ 494 495 /* followed by 4-byte generic affected Port_ID pages */ 496 }; 497 498 struct fc_els_rscn_page { 499 __u8 rscn_page_flags; /* event and address format */ 500 __u8 rscn_fid[3]; /* fabric ID */ 501 }; 502 503 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 504 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 505 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 506 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 507 508 enum fc_els_rscn_ev_qual { 509 ELS_EV_QUAL_NONE = 0, /* unspecified */ 510 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 511 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 512 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 513 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 514 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 515 }; 516 517 enum fc_els_rscn_addr_fmt { 518 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 519 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 520 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 521 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 522 }; 523 524 /* 525 * ELS_RNID - request Node ID. 526 */ 527 struct fc_els_rnid { 528 __u8 rnid_cmd; /* RNID opcode (0x78) */ 529 __u8 rnid_resv[3]; /* reserved */ 530 __u8 rnid_fmt; /* data format */ 531 __u8 rnid_resv2[3]; /* reserved */ 532 }; 533 534 /* 535 * Node Identification Data formats (rnid_fmt) 536 */ 537 enum fc_els_rnid_fmt { 538 ELS_RNIDF_NONE = 0, /* no specific identification data */ 539 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 540 }; 541 542 /* 543 * ELS_RNID response. 544 */ 545 struct fc_els_rnid_resp { 546 __u8 rnid_cmd; /* response code (LS_ACC) */ 547 __u8 rnid_resv[3]; /* reserved */ 548 __u8 rnid_fmt; /* data format */ 549 __u8 rnid_cid_len; /* common ID data length */ 550 __u8 rnid_resv2; /* reserved */ 551 __u8 rnid_sid_len; /* specific ID data length */ 552 }; 553 554 struct fc_els_rnid_cid { 555 __be64 rnid_wwpn; /* N port name */ 556 __be64 rnid_wwnn; /* node name */ 557 }; 558 559 struct fc_els_rnid_gen { 560 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 561 __be32 rnid_atype; /* associated type (see below) */ 562 __be32 rnid_phys_port; /* physical port number */ 563 __be32 rnid_att_nodes; /* number of attached nodes */ 564 __u8 rnid_node_mgmt; /* node management (see below) */ 565 __u8 rnid_ip_ver; /* IP version (see below) */ 566 __be16 rnid_prot_port; /* UDP / TCP port number */ 567 __be32 rnid_ip_addr[4]; /* IP address */ 568 __u8 rnid_resvd[2]; /* reserved */ 569 __be16 rnid_vend_spec; /* vendor-specific field */ 570 }; 571 572 enum fc_els_rnid_atype { 573 ELS_RNIDA_UNK = 0x01, /* unknown */ 574 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 575 ELS_RNIDA_HUB = 0x03, 576 ELS_RNIDA_SWITCH = 0x04, 577 ELS_RNIDA_GATEWAY = 0x05, 578 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 579 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 580 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 581 ELS_RNIDA_STORAGE = 0x09, 582 ELS_RNIDA_HOST = 0x0a, 583 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 584 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 585 ELS_RNIDA_NAS = 0x11, /* NAS server */ 586 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 587 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 588 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 589 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 590 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 591 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 592 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 593 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 594 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 595 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 596 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 597 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 598 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 599 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 600 }; 601 602 enum fc_els_rnid_mgmt { 603 ELS_RNIDM_SNMP = 0, 604 ELS_RNIDM_TELNET = 1, 605 ELS_RNIDM_HTTP = 2, 606 ELS_RNIDM_HTTPS = 3, 607 ELS_RNIDM_XML = 4, /* HTTP + XML */ 608 }; 609 610 enum fc_els_rnid_ipver { 611 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 612 ELS_RNIDIP_V4 = 1, /* IPv4 */ 613 ELS_RNIDIP_V6 = 2, /* IPv6 */ 614 }; 615 616 /* 617 * ELS RPL - Read Port List. 618 */ 619 struct fc_els_rpl { 620 __u8 rpl_cmd; /* command */ 621 __u8 rpl_resv[5]; /* reserved - must be zero */ 622 __be16 rpl_max_size; /* maximum response size or zero */ 623 __u8 rpl_resv1; /* reserved - must be zero */ 624 __u8 rpl_index[3]; /* starting index */ 625 }; 626 627 /* 628 * Port number block in RPL response. 629 */ 630 struct fc_els_pnb { 631 __be32 pnb_phys_pn; /* physical port number */ 632 __u8 pnb_resv; /* reserved */ 633 __u8 pnb_port_id[3]; /* port ID */ 634 __be64 pnb_wwpn; /* port name */ 635 }; 636 637 /* 638 * RPL LS_ACC response. 639 */ 640 struct fc_els_rpl_resp { 641 __u8 rpl_cmd; /* ELS_LS_ACC */ 642 __u8 rpl_resv1; /* reserved - must be zero */ 643 __be16 rpl_plen; /* payload length */ 644 __u8 rpl_resv2; /* reserved - must be zero */ 645 __u8 rpl_llen[3]; /* list length */ 646 __u8 rpl_resv3; /* reserved - must be zero */ 647 __u8 rpl_index[3]; /* starting index */ 648 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 649 }; 650 651 /* 652 * Link Error Status Block. 653 */ 654 struct fc_els_lesb { 655 __be32 lesb_link_fail; /* link failure count */ 656 __be32 lesb_sync_loss; /* loss of synchronization count */ 657 __be32 lesb_sig_loss; /* loss of signal count */ 658 __be32 lesb_prim_err; /* primitive sequence error count */ 659 __be32 lesb_inv_word; /* invalid transmission word count */ 660 __be32 lesb_inv_crc; /* invalid CRC count */ 661 }; 662 663 /* 664 * ELS RPS - Read Port Status Block request. 665 */ 666 struct fc_els_rps { 667 __u8 rps_cmd; /* command */ 668 __u8 rps_resv[2]; /* reserved - must be zero */ 669 __u8 rps_flag; /* flag - see below */ 670 __be64 rps_port_spec; /* port selection */ 671 }; 672 673 enum fc_els_rps_flag { 674 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 675 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 676 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 677 }; 678 679 /* 680 * ELS RPS LS_ACC response. 681 */ 682 struct fc_els_rps_resp { 683 __u8 rps_cmd; /* command - LS_ACC */ 684 __u8 rps_resv[2]; /* reserved - must be zero */ 685 __u8 rps_flag; /* flag - see below */ 686 __u8 rps_resv2[2]; /* reserved */ 687 __be16 rps_status; /* port status - see below */ 688 struct fc_els_lesb rps_lesb; /* link error status block */ 689 }; 690 691 enum fc_els_rps_resp_flag { 692 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 693 }; 694 695 enum fc_els_rps_resp_status { 696 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 697 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 698 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 699 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 700 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 701 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 702 }; 703 704 /* 705 * ELS LIRR - Link Incident Record Registration request. 706 */ 707 struct fc_els_lirr { 708 __u8 lirr_cmd; /* command */ 709 __u8 lirr_resv[3]; /* reserved - must be zero */ 710 __u8 lirr_func; /* registration function */ 711 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 712 __u8 lirr_resv2[2]; /* reserved - must be zero */ 713 }; 714 715 enum fc_els_lirr_func { 716 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 717 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 718 ELS_LIRR_CLEAR = 0xff /* clear registration */ 719 }; 720 721 /* 722 * ELS SRL - Scan Remote Loop request. 723 */ 724 struct fc_els_srl { 725 __u8 srl_cmd; /* command */ 726 __u8 srl_resv[3]; /* reserved - must be zero */ 727 __u8 srl_flag; /* flag - see below */ 728 __u8 srl_flag_param[3]; /* flag parameter */ 729 }; 730 731 enum fc_els_srl_flag { 732 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 733 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 734 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 735 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 736 }; 737 738 /* 739 * ELS RLS - Read Link Error Status Block request. 740 */ 741 struct fc_els_rls { 742 __u8 rls_cmd; /* command */ 743 __u8 rls_resv[4]; /* reserved - must be zero */ 744 __u8 rls_port_id[3]; /* port ID */ 745 }; 746 747 /* 748 * ELS RLS LS_ACC Response. 749 */ 750 struct fc_els_rls_resp { 751 __u8 rls_cmd; /* ELS_LS_ACC */ 752 __u8 rls_resv[3]; /* reserved - must be zero */ 753 struct fc_els_lesb rls_lesb; /* link error status block */ 754 }; 755 756 /* 757 * ELS RLIR - Registered Link Incident Report. 758 * This is followed by the CLIR and the CLID, described below. 759 */ 760 struct fc_els_rlir { 761 __u8 rlir_cmd; /* command */ 762 __u8 rlir_resv[3]; /* reserved - must be zero */ 763 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 764 __u8 rlir_clr_len; /* common link incident record length */ 765 __u8 rlir_cld_len; /* common link incident desc. length */ 766 __u8 rlir_slr_len; /* spec. link incident record length */ 767 }; 768 769 /* 770 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 771 */ 772 struct fc_els_clir { 773 __be64 clir_wwpn; /* incident port name */ 774 __be64 clir_wwnn; /* incident port node name */ 775 __u8 clir_port_type; /* incident port type */ 776 __u8 clir_port_id[3]; /* incident port ID */ 777 778 __be64 clir_conn_wwpn; /* connected port name */ 779 __be64 clir_conn_wwnn; /* connected node name */ 780 __be64 clir_fab_name; /* fabric name */ 781 __be32 clir_phys_port; /* physical port number */ 782 __be32 clir_trans_id; /* transaction ID */ 783 __u8 clir_resv[3]; /* reserved */ 784 __u8 clir_ts_fmt; /* time stamp format */ 785 __be64 clir_timestamp; /* time stamp */ 786 }; 787 788 /* 789 * CLIR clir_ts_fmt - time stamp format values. 790 */ 791 enum fc_els_clir_ts_fmt { 792 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 793 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 794 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 795 }; 796 797 /* 798 * Common Link Incident Descriptor - sent via RLIR. 799 */ 800 struct fc_els_clid { 801 __u8 clid_iq; /* incident qualifier flags */ 802 __u8 clid_ic; /* incident code */ 803 __be16 clid_epai; /* domain/area of ISL */ 804 }; 805 806 /* 807 * CLID incident qualifier flags. 808 */ 809 enum fc_els_clid_iq { 810 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 811 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 812 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 813 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 814 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 815 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 816 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 817 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 818 }; 819 820 /* 821 * CLID incident code. 822 */ 823 enum fc_els_clid_ic { 824 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 825 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 826 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 827 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 828 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 829 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 830 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 831 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 832 }; 833 834 835 /* 836 * Fabric Notification Descriptor Tag values 837 */ 838 enum fc_fn_dtag { 839 ELS_FN_DTAG_LNK_INTEGRITY = 0x00020001, /* Link Integrity */ 840 ELS_FN_DTAG_PEER_CONGEST = 0x00020003, /* Peer Congestion */ 841 ELS_FN_DTAG_CONGESTION = 0x00020004, /* Congestion */ 842 }; 843 844 /* 845 * Fabric Notification Descriptor 846 */ 847 struct fc_fn_desc { 848 __be32 fn_desc_tag; /* Notification Descriptor Tag */ 849 __be32 fn_desc_value_len; /* Length of Descriptor Value field 850 * (in bytes) 851 */ 852 __u8 fn_desc_value[0]; /* Descriptor Value */ 853 }; 854 855 /* 856 * ELS_FPIN - Fabric Performance Impact Notification 857 */ 858 struct fc_els_fpin { 859 __u8 fpin_cmd; /* command (0x16) */ 860 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 861 __be32 fpin_desc_cnt; /* count of descriptors */ 862 struct fc_fn_desc fpin_desc[0]; /* Descriptor list */ 863 }; 864 865 #endif /* _FC_ELS_H_ */ 866