1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Copyright(c) 2007 Intel Corporation. All rights reserved. 4 * 5 * Maintained at www.Open-FCoE.org 6 */ 7 8 #ifndef _FC_ELS_H_ 9 #define _FC_ELS_H_ 10 11 #include <linux/types.h> 12 13 /* 14 * Fibre Channel Switch - Enhanced Link Services definitions. 15 * From T11 FC-LS Rev 1.2 June 7, 2005. 16 */ 17 18 /* 19 * ELS Command codes - byte 0 of the frame payload 20 */ 21 enum fc_els_cmd { 22 ELS_LS_RJT = 0x01, /* ESL reject */ 23 ELS_LS_ACC = 0x02, /* ESL Accept */ 24 ELS_PLOGI = 0x03, /* N_Port login */ 25 ELS_FLOGI = 0x04, /* F_Port login */ 26 ELS_LOGO = 0x05, /* Logout */ 27 ELS_ABTX = 0x06, /* Abort exchange - obsolete */ 28 ELS_RCS = 0x07, /* read connection status */ 29 ELS_RES = 0x08, /* read exchange status block */ 30 ELS_RSS = 0x09, /* read sequence status block */ 31 ELS_RSI = 0x0a, /* read sequence initiative */ 32 ELS_ESTS = 0x0b, /* establish streaming */ 33 ELS_ESTC = 0x0c, /* estimate credit */ 34 ELS_ADVC = 0x0d, /* advise credit */ 35 ELS_RTV = 0x0e, /* read timeout value */ 36 ELS_RLS = 0x0f, /* read link error status block */ 37 ELS_ECHO = 0x10, /* echo */ 38 ELS_TEST = 0x11, /* test */ 39 ELS_RRQ = 0x12, /* reinstate recovery qualifier */ 40 ELS_REC = 0x13, /* read exchange concise */ 41 ELS_SRR = 0x14, /* sequence retransmission request */ 42 ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */ 43 ELS_PRLI = 0x20, /* process login */ 44 ELS_PRLO = 0x21, /* process logout */ 45 ELS_SCN = 0x22, /* state change notification */ 46 ELS_TPLS = 0x23, /* test process login state */ 47 ELS_TPRLO = 0x24, /* third party process logout */ 48 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 49 ELS_GAID = 0x30, /* get alias_ID */ 50 ELS_FACT = 0x31, /* fabric activate alias_id */ 51 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 52 ELS_NACT = 0x33, /* N-port activate alias_id */ 53 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 54 ELS_QOSR = 0x40, /* quality of service request */ 55 ELS_RVCS = 0x41, /* read virtual circuit status */ 56 ELS_PDISC = 0x50, /* discover N_port service params */ 57 ELS_FDISC = 0x51, /* discover F_port service params */ 58 ELS_ADISC = 0x52, /* discover address */ 59 ELS_RNC = 0x53, /* report node cap (obs) */ 60 ELS_FARP_REQ = 0x54, /* FC ARP request */ 61 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 62 ELS_RPS = 0x56, /* read port status block */ 63 ELS_RPL = 0x57, /* read port list */ 64 ELS_RPBC = 0x58, /* read port buffer condition */ 65 ELS_FAN = 0x60, /* fabric address notification */ 66 ELS_RSCN = 0x61, /* registered state change notification */ 67 ELS_SCR = 0x62, /* state change registration */ 68 ELS_RNFT = 0x63, /* report node FC-4 types */ 69 ELS_CSR = 0x68, /* clock synch. request */ 70 ELS_CSU = 0x69, /* clock synch. update */ 71 ELS_LINIT = 0x70, /* loop initialize */ 72 ELS_LSTS = 0x72, /* loop status */ 73 ELS_RNID = 0x78, /* request node ID data */ 74 ELS_RLIR = 0x79, /* registered link incident report */ 75 ELS_LIRR = 0x7a, /* link incident record registration */ 76 ELS_SRL = 0x7b, /* scan remote loop */ 77 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 78 ELS_RPSC = 0x7d, /* report speed capabilities */ 79 ELS_QSA = 0x7e, /* query security attributes */ 80 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 81 ELS_LKA = 0x80, /* link keep-alive */ 82 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 83 }; 84 85 /* 86 * Initializer useful for decoding table. 87 * Please keep this in sync with the above definitions. 88 */ 89 #define FC_ELS_CMDS_INIT { \ 90 [ELS_LS_RJT] = "LS_RJT", \ 91 [ELS_LS_ACC] = "LS_ACC", \ 92 [ELS_PLOGI] = "PLOGI", \ 93 [ELS_FLOGI] = "FLOGI", \ 94 [ELS_LOGO] = "LOGO", \ 95 [ELS_ABTX] = "ABTX", \ 96 [ELS_RCS] = "RCS", \ 97 [ELS_RES] = "RES", \ 98 [ELS_RSS] = "RSS", \ 99 [ELS_RSI] = "RSI", \ 100 [ELS_ESTS] = "ESTS", \ 101 [ELS_ESTC] = "ESTC", \ 102 [ELS_ADVC] = "ADVC", \ 103 [ELS_RTV] = "RTV", \ 104 [ELS_RLS] = "RLS", \ 105 [ELS_ECHO] = "ECHO", \ 106 [ELS_TEST] = "TEST", \ 107 [ELS_RRQ] = "RRQ", \ 108 [ELS_REC] = "REC", \ 109 [ELS_SRR] = "SRR", \ 110 [ELS_FPIN] = "FPIN", \ 111 [ELS_PRLI] = "PRLI", \ 112 [ELS_PRLO] = "PRLO", \ 113 [ELS_SCN] = "SCN", \ 114 [ELS_TPLS] = "TPLS", \ 115 [ELS_TPRLO] = "TPRLO", \ 116 [ELS_LCLM] = "LCLM", \ 117 [ELS_GAID] = "GAID", \ 118 [ELS_FACT] = "FACT", \ 119 [ELS_FDACDT] = "FDACDT", \ 120 [ELS_NACT] = "NACT", \ 121 [ELS_NDACT] = "NDACT", \ 122 [ELS_QOSR] = "QOSR", \ 123 [ELS_RVCS] = "RVCS", \ 124 [ELS_PDISC] = "PDISC", \ 125 [ELS_FDISC] = "FDISC", \ 126 [ELS_ADISC] = "ADISC", \ 127 [ELS_RNC] = "RNC", \ 128 [ELS_FARP_REQ] = "FARP_REQ", \ 129 [ELS_FARP_REPL] = "FARP_REPL", \ 130 [ELS_RPS] = "RPS", \ 131 [ELS_RPL] = "RPL", \ 132 [ELS_RPBC] = "RPBC", \ 133 [ELS_FAN] = "FAN", \ 134 [ELS_RSCN] = "RSCN", \ 135 [ELS_SCR] = "SCR", \ 136 [ELS_RNFT] = "RNFT", \ 137 [ELS_CSR] = "CSR", \ 138 [ELS_CSU] = "CSU", \ 139 [ELS_LINIT] = "LINIT", \ 140 [ELS_LSTS] = "LSTS", \ 141 [ELS_RNID] = "RNID", \ 142 [ELS_RLIR] = "RLIR", \ 143 [ELS_LIRR] = "LIRR", \ 144 [ELS_SRL] = "SRL", \ 145 [ELS_SBRP] = "SBRP", \ 146 [ELS_RPSC] = "RPSC", \ 147 [ELS_QSA] = "QSA", \ 148 [ELS_EVFP] = "EVFP", \ 149 [ELS_LKA] = "LKA", \ 150 [ELS_AUTH_ELS] = "AUTH_ELS", \ 151 } 152 153 /* 154 * LS_ACC payload. 155 */ 156 struct fc_els_ls_acc { 157 __u8 la_cmd; /* command code ELS_LS_ACC */ 158 __u8 la_resv[3]; /* reserved */ 159 }; 160 161 /* 162 * ELS reject payload. 163 */ 164 struct fc_els_ls_rjt { 165 __u8 er_cmd; /* command code ELS_LS_RJT */ 166 __u8 er_resv[4]; /* reserved must be zero */ 167 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 168 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 169 __u8 er_vendor; /* vendor specific code */ 170 }; 171 172 /* 173 * ELS reject reason codes (er_reason). 174 */ 175 enum fc_els_rjt_reason { 176 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 177 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 178 ELS_RJT_LOGIC = 0x03, /* logical error */ 179 ELS_RJT_BUSY = 0x05, /* logical busy */ 180 ELS_RJT_PROT = 0x07, /* protocol error */ 181 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 182 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 183 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 184 ELS_RJT_FIP = 0x20, /* FIP error */ 185 ELS_RJT_VENDOR = 0xff, /* vendor specific error */ 186 }; 187 188 189 /* 190 * reason code explanation (er_explan). 191 */ 192 enum fc_els_rjt_explan { 193 ELS_EXPL_NONE = 0x00, /* No additional explanation */ 194 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ 195 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ 196 ELS_EXPL_AH = 0x11, /* invalid association header */ 197 ELS_EXPL_AH_REQ = 0x13, /* association_header required */ 198 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ 199 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ 200 ELS_EXPL_INPROG = 0x19, /* Request already in progress */ 201 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ 202 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ 203 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ 204 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ 205 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ 206 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ 207 /* TBD - above definitions incomplete */ 208 }; 209 210 /* 211 * Common service parameters (N ports). 212 */ 213 struct fc_els_csp { 214 __u8 sp_hi_ver; /* highest version supported (obs.) */ 215 __u8 sp_lo_ver; /* highest version supported (obs.) */ 216 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 217 __be16 sp_features; /* common feature flags */ 218 __be16 sp_bb_data; /* b-b state number and data field sz */ 219 union { 220 struct { 221 __be16 _sp_tot_seq; /* total concurrent sequences */ 222 __be16 _sp_rel_off; /* rel. offset by info cat */ 223 } sp_plogi; 224 struct { 225 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 226 } sp_flogi_acc; 227 } sp_u; 228 __be32 sp_e_d_tov; /* error detect timeout value */ 229 }; 230 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 231 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 232 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 233 234 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 235 236 /* 237 * Minimum and maximum values for max data field size in service parameters. 238 */ 239 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 240 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 241 242 /* 243 * sp_features 244 */ 245 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ 246 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ 247 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 248 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 249 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 250 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ 251 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 252 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 253 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 254 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 255 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 256 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 257 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 258 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 259 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 260 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 261 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 262 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 263 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 264 265 /* 266 * Class-specific service parameters. 267 */ 268 struct fc_els_cssp { 269 __be16 cp_class; /* class flags */ 270 __be16 cp_init; /* initiator flags */ 271 __be16 cp_recip; /* recipient flags */ 272 __be16 cp_rdfs; /* receive data field size */ 273 __be16 cp_con_seq; /* concurrent sequences */ 274 __be16 cp_ee_cred; /* N-port end-to-end credit */ 275 __u8 cp_resv1; /* reserved */ 276 __u8 cp_open_seq; /* open sequences per exchange */ 277 __u8 _cp_resv2[2]; /* reserved */ 278 }; 279 280 /* 281 * cp_class flags. 282 */ 283 #define FC_CPC_VALID 0x8000 /* class valid */ 284 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 285 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 286 #define FC_CPC_CAMP 0x0200 /* camp-on */ 287 #define FC_CPC_PRI 0x0080 /* priority */ 288 289 /* 290 * cp_init flags. 291 * (TBD: not all flags defined here). 292 */ 293 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 294 295 /* 296 * cp_recip flags. 297 */ 298 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 299 300 /* 301 * NFC_ELS_FLOGI: Fabric login request. 302 * NFC_ELS_PLOGI: Port login request (same format). 303 */ 304 struct fc_els_flogi { 305 __u8 fl_cmd; /* command */ 306 __u8 _fl_resvd[3]; /* must be zero */ 307 struct fc_els_csp fl_csp; /* common service parameters */ 308 __be64 fl_wwpn; /* port name */ 309 __be64 fl_wwnn; /* node name */ 310 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 311 __u8 fl_vend[16]; /* vendor version level */ 312 } __attribute__((__packed__)); 313 314 /* 315 * Process login service parameter page. 316 */ 317 struct fc_els_spp { 318 __u8 spp_type; /* type code or common service params */ 319 __u8 spp_type_ext; /* type code extension */ 320 __u8 spp_flags; 321 __u8 _spp_resvd; 322 __be32 spp_orig_pa; /* originator process associator */ 323 __be32 spp_resp_pa; /* responder process associator */ 324 __be32 spp_params; /* service parameters */ 325 }; 326 327 /* 328 * spp_flags. 329 */ 330 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 331 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 332 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 333 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 334 335 /* 336 * SPP response code in spp_flags - lower 4 bits. 337 */ 338 enum fc_els_spp_resp { 339 FC_SPP_RESP_ACK = 1, /* request executed */ 340 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 341 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 342 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 343 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 344 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 345 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 346 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 347 }; 348 349 /* 350 * ELS_RRQ - Reinstate Recovery Qualifier 351 */ 352 struct fc_els_rrq { 353 __u8 rrq_cmd; /* command (0x12) */ 354 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 355 __u8 rrq_resvd; /* reserved */ 356 __u8 rrq_s_id[3]; /* originator FID */ 357 __be16 rrq_ox_id; /* originator exchange ID */ 358 __be16 rrq_rx_id; /* responders exchange ID */ 359 }; 360 361 /* 362 * ELS_REC - Read exchange concise. 363 */ 364 struct fc_els_rec { 365 __u8 rec_cmd; /* command (0x13) */ 366 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 367 __u8 rec_resvd; /* reserved */ 368 __u8 rec_s_id[3]; /* originator FID */ 369 __be16 rec_ox_id; /* originator exchange ID */ 370 __be16 rec_rx_id; /* responders exchange ID */ 371 }; 372 373 /* 374 * ELS_REC LS_ACC payload. 375 */ 376 struct fc_els_rec_acc { 377 __u8 reca_cmd; /* accept (0x02) */ 378 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 379 __be16 reca_ox_id; /* originator exchange ID */ 380 __be16 reca_rx_id; /* responders exchange ID */ 381 __u8 reca_resvd1; /* reserved */ 382 __u8 reca_ofid[3]; /* originator FID */ 383 __u8 reca_resvd2; /* reserved */ 384 __u8 reca_rfid[3]; /* responder FID */ 385 __be32 reca_fc4value; /* FC4 value */ 386 __be32 reca_e_stat; /* ESB (exchange status block) status */ 387 }; 388 389 /* 390 * ELS_PRLI - Process login request and response. 391 */ 392 struct fc_els_prli { 393 __u8 prli_cmd; /* command */ 394 __u8 prli_spp_len; /* length of each serv. parm. page */ 395 __be16 prli_len; /* length of entire payload */ 396 /* service parameter pages follow */ 397 }; 398 399 /* 400 * ELS_PRLO - Process logout request and response. 401 */ 402 struct fc_els_prlo { 403 __u8 prlo_cmd; /* command */ 404 __u8 prlo_obs; /* obsolete, but shall be set to 10h */ 405 __be16 prlo_len; /* payload length */ 406 }; 407 408 /* 409 * ELS_ADISC payload 410 */ 411 struct fc_els_adisc { 412 __u8 adisc_cmd; 413 __u8 adisc_resv[3]; 414 __u8 adisc_resv1; 415 __u8 adisc_hard_addr[3]; 416 __be64 adisc_wwpn; 417 __be64 adisc_wwnn; 418 __u8 adisc_resv2; 419 __u8 adisc_port_id[3]; 420 } __attribute__((__packed__)); 421 422 /* 423 * ELS_LOGO - process or fabric logout. 424 */ 425 struct fc_els_logo { 426 __u8 fl_cmd; /* command code */ 427 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 428 __u8 fl_resvd; /* reserved */ 429 __u8 fl_n_port_id[3];/* N port ID */ 430 __be64 fl_n_port_wwn; /* port name */ 431 }; 432 433 /* 434 * ELS_RTV - read timeout value. 435 */ 436 struct fc_els_rtv { 437 __u8 rtv_cmd; /* command code 0x0e */ 438 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 439 }; 440 441 /* 442 * LS_ACC for ELS_RTV - read timeout value. 443 */ 444 struct fc_els_rtv_acc { 445 __u8 rtv_cmd; /* command code 0x02 */ 446 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 447 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 448 __be32 rtv_e_d_tov; /* error detection timeout value */ 449 __be32 rtv_toq; /* timeout qualifier (see below) */ 450 }; 451 452 /* 453 * rtv_toq bits. 454 */ 455 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 456 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 457 458 /* 459 * ELS_SCR - state change registration payload. 460 */ 461 struct fc_els_scr { 462 __u8 scr_cmd; /* command code */ 463 __u8 scr_resv[6]; /* reserved */ 464 __u8 scr_reg_func; /* registration function (see below) */ 465 }; 466 467 enum fc_els_scr_func { 468 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 469 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 470 ELS_SCRF_FULL = 3, /* full registration */ 471 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 472 }; 473 474 /* 475 * ELS_RSCN - registered state change notification payload. 476 */ 477 struct fc_els_rscn { 478 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 479 __u8 rscn_page_len; /* page length (4) */ 480 __be16 rscn_plen; /* payload length including this word */ 481 482 /* followed by 4-byte generic affected Port_ID pages */ 483 }; 484 485 struct fc_els_rscn_page { 486 __u8 rscn_page_flags; /* event and address format */ 487 __u8 rscn_fid[3]; /* fabric ID */ 488 }; 489 490 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 491 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 492 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 493 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 494 495 enum fc_els_rscn_ev_qual { 496 ELS_EV_QUAL_NONE = 0, /* unspecified */ 497 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 498 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 499 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 500 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 501 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 502 }; 503 504 enum fc_els_rscn_addr_fmt { 505 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 506 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 507 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 508 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 509 }; 510 511 /* 512 * ELS_RNID - request Node ID. 513 */ 514 struct fc_els_rnid { 515 __u8 rnid_cmd; /* RNID opcode (0x78) */ 516 __u8 rnid_resv[3]; /* reserved */ 517 __u8 rnid_fmt; /* data format */ 518 __u8 rnid_resv2[3]; /* reserved */ 519 }; 520 521 /* 522 * Node Identification Data formats (rnid_fmt) 523 */ 524 enum fc_els_rnid_fmt { 525 ELS_RNIDF_NONE = 0, /* no specific identification data */ 526 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 527 }; 528 529 /* 530 * ELS_RNID response. 531 */ 532 struct fc_els_rnid_resp { 533 __u8 rnid_cmd; /* response code (LS_ACC) */ 534 __u8 rnid_resv[3]; /* reserved */ 535 __u8 rnid_fmt; /* data format */ 536 __u8 rnid_cid_len; /* common ID data length */ 537 __u8 rnid_resv2; /* reserved */ 538 __u8 rnid_sid_len; /* specific ID data length */ 539 }; 540 541 struct fc_els_rnid_cid { 542 __be64 rnid_wwpn; /* N port name */ 543 __be64 rnid_wwnn; /* node name */ 544 }; 545 546 struct fc_els_rnid_gen { 547 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 548 __be32 rnid_atype; /* associated type (see below) */ 549 __be32 rnid_phys_port; /* physical port number */ 550 __be32 rnid_att_nodes; /* number of attached nodes */ 551 __u8 rnid_node_mgmt; /* node management (see below) */ 552 __u8 rnid_ip_ver; /* IP version (see below) */ 553 __be16 rnid_prot_port; /* UDP / TCP port number */ 554 __be32 rnid_ip_addr[4]; /* IP address */ 555 __u8 rnid_resvd[2]; /* reserved */ 556 __be16 rnid_vend_spec; /* vendor-specific field */ 557 }; 558 559 enum fc_els_rnid_atype { 560 ELS_RNIDA_UNK = 0x01, /* unknown */ 561 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 562 ELS_RNIDA_HUB = 0x03, 563 ELS_RNIDA_SWITCH = 0x04, 564 ELS_RNIDA_GATEWAY = 0x05, 565 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 566 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 567 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 568 ELS_RNIDA_STORAGE = 0x09, 569 ELS_RNIDA_HOST = 0x0a, 570 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 571 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 572 ELS_RNIDA_NAS = 0x11, /* NAS server */ 573 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 574 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 575 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 576 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 577 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 578 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 579 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 580 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 581 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 582 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 583 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 584 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 585 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 586 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 587 }; 588 589 enum fc_els_rnid_mgmt { 590 ELS_RNIDM_SNMP = 0, 591 ELS_RNIDM_TELNET = 1, 592 ELS_RNIDM_HTTP = 2, 593 ELS_RNIDM_HTTPS = 3, 594 ELS_RNIDM_XML = 4, /* HTTP + XML */ 595 }; 596 597 enum fc_els_rnid_ipver { 598 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 599 ELS_RNIDIP_V4 = 1, /* IPv4 */ 600 ELS_RNIDIP_V6 = 2, /* IPv6 */ 601 }; 602 603 /* 604 * ELS RPL - Read Port List. 605 */ 606 struct fc_els_rpl { 607 __u8 rpl_cmd; /* command */ 608 __u8 rpl_resv[5]; /* reserved - must be zero */ 609 __be16 rpl_max_size; /* maximum response size or zero */ 610 __u8 rpl_resv1; /* reserved - must be zero */ 611 __u8 rpl_index[3]; /* starting index */ 612 }; 613 614 /* 615 * Port number block in RPL response. 616 */ 617 struct fc_els_pnb { 618 __be32 pnb_phys_pn; /* physical port number */ 619 __u8 pnb_resv; /* reserved */ 620 __u8 pnb_port_id[3]; /* port ID */ 621 __be64 pnb_wwpn; /* port name */ 622 }; 623 624 /* 625 * RPL LS_ACC response. 626 */ 627 struct fc_els_rpl_resp { 628 __u8 rpl_cmd; /* ELS_LS_ACC */ 629 __u8 rpl_resv1; /* reserved - must be zero */ 630 __be16 rpl_plen; /* payload length */ 631 __u8 rpl_resv2; /* reserved - must be zero */ 632 __u8 rpl_llen[3]; /* list length */ 633 __u8 rpl_resv3; /* reserved - must be zero */ 634 __u8 rpl_index[3]; /* starting index */ 635 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 636 }; 637 638 /* 639 * Link Error Status Block. 640 */ 641 struct fc_els_lesb { 642 __be32 lesb_link_fail; /* link failure count */ 643 __be32 lesb_sync_loss; /* loss of synchronization count */ 644 __be32 lesb_sig_loss; /* loss of signal count */ 645 __be32 lesb_prim_err; /* primitive sequence error count */ 646 __be32 lesb_inv_word; /* invalid transmission word count */ 647 __be32 lesb_inv_crc; /* invalid CRC count */ 648 }; 649 650 /* 651 * ELS RPS - Read Port Status Block request. 652 */ 653 struct fc_els_rps { 654 __u8 rps_cmd; /* command */ 655 __u8 rps_resv[2]; /* reserved - must be zero */ 656 __u8 rps_flag; /* flag - see below */ 657 __be64 rps_port_spec; /* port selection */ 658 }; 659 660 enum fc_els_rps_flag { 661 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 662 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 663 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 664 }; 665 666 /* 667 * ELS RPS LS_ACC response. 668 */ 669 struct fc_els_rps_resp { 670 __u8 rps_cmd; /* command - LS_ACC */ 671 __u8 rps_resv[2]; /* reserved - must be zero */ 672 __u8 rps_flag; /* flag - see below */ 673 __u8 rps_resv2[2]; /* reserved */ 674 __be16 rps_status; /* port status - see below */ 675 struct fc_els_lesb rps_lesb; /* link error status block */ 676 }; 677 678 enum fc_els_rps_resp_flag { 679 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 680 }; 681 682 enum fc_els_rps_resp_status { 683 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 684 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 685 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 686 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 687 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 688 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 689 }; 690 691 /* 692 * ELS LIRR - Link Incident Record Registration request. 693 */ 694 struct fc_els_lirr { 695 __u8 lirr_cmd; /* command */ 696 __u8 lirr_resv[3]; /* reserved - must be zero */ 697 __u8 lirr_func; /* registration function */ 698 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 699 __u8 lirr_resv2[2]; /* reserved - must be zero */ 700 }; 701 702 enum fc_els_lirr_func { 703 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 704 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 705 ELS_LIRR_CLEAR = 0xff /* clear registration */ 706 }; 707 708 /* 709 * ELS SRL - Scan Remote Loop request. 710 */ 711 struct fc_els_srl { 712 __u8 srl_cmd; /* command */ 713 __u8 srl_resv[3]; /* reserved - must be zero */ 714 __u8 srl_flag; /* flag - see below */ 715 __u8 srl_flag_param[3]; /* flag parameter */ 716 }; 717 718 enum fc_els_srl_flag { 719 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 720 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 721 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 722 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 723 }; 724 725 /* 726 * ELS RLS - Read Link Error Status Block request. 727 */ 728 struct fc_els_rls { 729 __u8 rls_cmd; /* command */ 730 __u8 rls_resv[4]; /* reserved - must be zero */ 731 __u8 rls_port_id[3]; /* port ID */ 732 }; 733 734 /* 735 * ELS RLS LS_ACC Response. 736 */ 737 struct fc_els_rls_resp { 738 __u8 rls_cmd; /* ELS_LS_ACC */ 739 __u8 rls_resv[3]; /* reserved - must be zero */ 740 struct fc_els_lesb rls_lesb; /* link error status block */ 741 }; 742 743 /* 744 * ELS RLIR - Registered Link Incident Report. 745 * This is followed by the CLIR and the CLID, described below. 746 */ 747 struct fc_els_rlir { 748 __u8 rlir_cmd; /* command */ 749 __u8 rlir_resv[3]; /* reserved - must be zero */ 750 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 751 __u8 rlir_clr_len; /* common link incident record length */ 752 __u8 rlir_cld_len; /* common link incident desc. length */ 753 __u8 rlir_slr_len; /* spec. link incident record length */ 754 }; 755 756 /* 757 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 758 */ 759 struct fc_els_clir { 760 __be64 clir_wwpn; /* incident port name */ 761 __be64 clir_wwnn; /* incident port node name */ 762 __u8 clir_port_type; /* incident port type */ 763 __u8 clir_port_id[3]; /* incident port ID */ 764 765 __be64 clir_conn_wwpn; /* connected port name */ 766 __be64 clir_conn_wwnn; /* connected node name */ 767 __be64 clir_fab_name; /* fabric name */ 768 __be32 clir_phys_port; /* physical port number */ 769 __be32 clir_trans_id; /* transaction ID */ 770 __u8 clir_resv[3]; /* reserved */ 771 __u8 clir_ts_fmt; /* time stamp format */ 772 __be64 clir_timestamp; /* time stamp */ 773 }; 774 775 /* 776 * CLIR clir_ts_fmt - time stamp format values. 777 */ 778 enum fc_els_clir_ts_fmt { 779 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 780 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 781 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 782 }; 783 784 /* 785 * Common Link Incident Descriptor - sent via RLIR. 786 */ 787 struct fc_els_clid { 788 __u8 clid_iq; /* incident qualifier flags */ 789 __u8 clid_ic; /* incident code */ 790 __be16 clid_epai; /* domain/area of ISL */ 791 }; 792 793 /* 794 * CLID incident qualifier flags. 795 */ 796 enum fc_els_clid_iq { 797 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 798 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 799 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 800 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 801 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 802 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 803 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 804 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 805 }; 806 807 /* 808 * CLID incident code. 809 */ 810 enum fc_els_clid_ic { 811 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 812 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 813 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 814 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 815 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 816 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 817 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 818 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 819 }; 820 821 822 /* 823 * Fabric Notification Descriptor Tag values 824 */ 825 enum fc_fn_dtag { 826 ELS_FN_DTAG_LNK_INTEGRITY = 0x00020001, /* Link Integrity */ 827 ELS_FN_DTAG_PEER_CONGEST = 0x00020003, /* Peer Congestion */ 828 ELS_FN_DTAG_CONGESTION = 0x00020004, /* Congestion */ 829 }; 830 831 /* 832 * Fabric Notification Descriptor 833 */ 834 struct fc_fn_desc { 835 __be32 fn_desc_tag; /* Notification Descriptor Tag */ 836 __be32 fn_desc_value_len; /* Length of Descriptor Value field 837 * (in bytes) 838 */ 839 __u8 fn_desc_value[0]; /* Descriptor Value */ 840 }; 841 842 /* 843 * ELS_FPIN - Fabric Performance Impact Notification 844 */ 845 struct fc_els_fpin { 846 __u8 fpin_cmd; /* command (0x16) */ 847 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 848 __be32 fpin_desc_cnt; /* count of descriptors */ 849 struct fc_fn_desc fpin_desc[0]; /* Descriptor list */ 850 }; 851 852 #endif /* _FC_ELS_H_ */ 853