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 #include <asm/byteorder.h> 13 14 /* 15 * Fibre Channel Switch - Enhanced Link Services definitions. 16 * From T11 FC-LS Rev 1.2 June 7, 2005. 17 */ 18 19 /* 20 * ELS Command codes - byte 0 of the frame payload 21 */ 22 enum fc_els_cmd { 23 ELS_LS_RJT = 0x01, /* ESL reject */ 24 ELS_LS_ACC = 0x02, /* ESL Accept */ 25 ELS_PLOGI = 0x03, /* N_Port login */ 26 ELS_FLOGI = 0x04, /* F_Port login */ 27 ELS_LOGO = 0x05, /* Logout */ 28 ELS_ABTX = 0x06, /* Abort exchange - obsolete */ 29 ELS_RCS = 0x07, /* read connection status */ 30 ELS_RES = 0x08, /* read exchange status block */ 31 ELS_RSS = 0x09, /* read sequence status block */ 32 ELS_RSI = 0x0a, /* read sequence initiative */ 33 ELS_ESTS = 0x0b, /* establish streaming */ 34 ELS_ESTC = 0x0c, /* estimate credit */ 35 ELS_ADVC = 0x0d, /* advise credit */ 36 ELS_RTV = 0x0e, /* read timeout value */ 37 ELS_RLS = 0x0f, /* read link error status block */ 38 ELS_ECHO = 0x10, /* echo */ 39 ELS_TEST = 0x11, /* test */ 40 ELS_RRQ = 0x12, /* reinstate recovery qualifier */ 41 ELS_REC = 0x13, /* read exchange concise */ 42 ELS_SRR = 0x14, /* sequence retransmission request */ 43 ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */ 44 ELS_EDC = 0x17, /* Exchange Diagnostic Capabilities */ 45 ELS_RDP = 0x18, /* Read Diagnostic Parameters */ 46 ELS_RDF = 0x19, /* Register Diagnostic Functions */ 47 ELS_PRLI = 0x20, /* process login */ 48 ELS_PRLO = 0x21, /* process logout */ 49 ELS_SCN = 0x22, /* state change notification */ 50 ELS_TPLS = 0x23, /* test process login state */ 51 ELS_TPRLO = 0x24, /* third party process logout */ 52 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 53 ELS_GAID = 0x30, /* get alias_ID */ 54 ELS_FACT = 0x31, /* fabric activate alias_id */ 55 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 56 ELS_NACT = 0x33, /* N-port activate alias_id */ 57 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 58 ELS_QOSR = 0x40, /* quality of service request */ 59 ELS_RVCS = 0x41, /* read virtual circuit status */ 60 ELS_PDISC = 0x50, /* discover N_port service params */ 61 ELS_FDISC = 0x51, /* discover F_port service params */ 62 ELS_ADISC = 0x52, /* discover address */ 63 ELS_RNC = 0x53, /* report node cap (obs) */ 64 ELS_FARP_REQ = 0x54, /* FC ARP request */ 65 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 66 ELS_RPS = 0x56, /* read port status block */ 67 ELS_RPL = 0x57, /* read port list */ 68 ELS_RPBC = 0x58, /* read port buffer condition */ 69 ELS_FAN = 0x60, /* fabric address notification */ 70 ELS_RSCN = 0x61, /* registered state change notification */ 71 ELS_SCR = 0x62, /* state change registration */ 72 ELS_RNFT = 0x63, /* report node FC-4 types */ 73 ELS_CSR = 0x68, /* clock synch. request */ 74 ELS_CSU = 0x69, /* clock synch. update */ 75 ELS_LINIT = 0x70, /* loop initialize */ 76 ELS_LSTS = 0x72, /* loop status */ 77 ELS_RNID = 0x78, /* request node ID data */ 78 ELS_RLIR = 0x79, /* registered link incident report */ 79 ELS_LIRR = 0x7a, /* link incident record registration */ 80 ELS_SRL = 0x7b, /* scan remote loop */ 81 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 82 ELS_RPSC = 0x7d, /* report speed capabilities */ 83 ELS_QSA = 0x7e, /* query security attributes */ 84 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 85 ELS_LKA = 0x80, /* link keep-alive */ 86 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 87 }; 88 89 /* 90 * Initializer useful for decoding table. 91 * Please keep this in sync with the above definitions. 92 */ 93 #define FC_ELS_CMDS_INIT { \ 94 [ELS_LS_RJT] = "LS_RJT", \ 95 [ELS_LS_ACC] = "LS_ACC", \ 96 [ELS_PLOGI] = "PLOGI", \ 97 [ELS_FLOGI] = "FLOGI", \ 98 [ELS_LOGO] = "LOGO", \ 99 [ELS_ABTX] = "ABTX", \ 100 [ELS_RCS] = "RCS", \ 101 [ELS_RES] = "RES", \ 102 [ELS_RSS] = "RSS", \ 103 [ELS_RSI] = "RSI", \ 104 [ELS_ESTS] = "ESTS", \ 105 [ELS_ESTC] = "ESTC", \ 106 [ELS_ADVC] = "ADVC", \ 107 [ELS_RTV] = "RTV", \ 108 [ELS_RLS] = "RLS", \ 109 [ELS_ECHO] = "ECHO", \ 110 [ELS_TEST] = "TEST", \ 111 [ELS_RRQ] = "RRQ", \ 112 [ELS_REC] = "REC", \ 113 [ELS_SRR] = "SRR", \ 114 [ELS_FPIN] = "FPIN", \ 115 [ELS_EDC] = "EDC", \ 116 [ELS_RDP] = "RDP", \ 117 [ELS_RDF] = "RDF", \ 118 [ELS_PRLI] = "PRLI", \ 119 [ELS_PRLO] = "PRLO", \ 120 [ELS_SCN] = "SCN", \ 121 [ELS_TPLS] = "TPLS", \ 122 [ELS_TPRLO] = "TPRLO", \ 123 [ELS_LCLM] = "LCLM", \ 124 [ELS_GAID] = "GAID", \ 125 [ELS_FACT] = "FACT", \ 126 [ELS_FDACDT] = "FDACDT", \ 127 [ELS_NACT] = "NACT", \ 128 [ELS_NDACT] = "NDACT", \ 129 [ELS_QOSR] = "QOSR", \ 130 [ELS_RVCS] = "RVCS", \ 131 [ELS_PDISC] = "PDISC", \ 132 [ELS_FDISC] = "FDISC", \ 133 [ELS_ADISC] = "ADISC", \ 134 [ELS_RNC] = "RNC", \ 135 [ELS_FARP_REQ] = "FARP_REQ", \ 136 [ELS_FARP_REPL] = "FARP_REPL", \ 137 [ELS_RPS] = "RPS", \ 138 [ELS_RPL] = "RPL", \ 139 [ELS_RPBC] = "RPBC", \ 140 [ELS_FAN] = "FAN", \ 141 [ELS_RSCN] = "RSCN", \ 142 [ELS_SCR] = "SCR", \ 143 [ELS_RNFT] = "RNFT", \ 144 [ELS_CSR] = "CSR", \ 145 [ELS_CSU] = "CSU", \ 146 [ELS_LINIT] = "LINIT", \ 147 [ELS_LSTS] = "LSTS", \ 148 [ELS_RNID] = "RNID", \ 149 [ELS_RLIR] = "RLIR", \ 150 [ELS_LIRR] = "LIRR", \ 151 [ELS_SRL] = "SRL", \ 152 [ELS_SBRP] = "SBRP", \ 153 [ELS_RPSC] = "RPSC", \ 154 [ELS_QSA] = "QSA", \ 155 [ELS_EVFP] = "EVFP", \ 156 [ELS_LKA] = "LKA", \ 157 [ELS_AUTH_ELS] = "AUTH_ELS", \ 158 } 159 160 /* 161 * LS_ACC payload. 162 */ 163 struct fc_els_ls_acc { 164 __u8 la_cmd; /* command code ELS_LS_ACC */ 165 __u8 la_resv[3]; /* reserved */ 166 }; 167 168 /* 169 * ELS reject payload. 170 */ 171 struct fc_els_ls_rjt { 172 __u8 er_cmd; /* command code ELS_LS_RJT */ 173 __u8 er_resv[4]; /* reserved must be zero */ 174 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 175 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 176 __u8 er_vendor; /* vendor specific code */ 177 }; 178 179 /* 180 * ELS reject reason codes (er_reason). 181 */ 182 enum fc_els_rjt_reason { 183 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 184 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 185 ELS_RJT_LOGIC = 0x03, /* logical error */ 186 ELS_RJT_BUSY = 0x05, /* logical busy */ 187 ELS_RJT_PROT = 0x07, /* protocol error */ 188 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 189 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 190 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 191 ELS_RJT_FIP = 0x20, /* FIP error */ 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 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ 214 /* TBD - above definitions incomplete */ 215 }; 216 217 /* 218 * Link Service TLV Descriptor Tag Values 219 */ 220 enum fc_ls_tlv_dtag { 221 ELS_DTAG_LS_REQ_INFO = 0x00000001, 222 /* Link Service Request Information Descriptor */ 223 ELS_DTAG_LNK_FAULT_CAP = 0x0001000D, 224 /* Link Fault Capability Descriptor */ 225 ELS_DTAG_CG_SIGNAL_CAP = 0x0001000F, 226 /* Congestion Signaling Capability Descriptor */ 227 ELS_DTAG_LNK_INTEGRITY = 0x00020001, 228 /* Link Integrity Notification Descriptor */ 229 ELS_DTAG_DELIVERY = 0x00020002, 230 /* Delivery Notification Descriptor */ 231 ELS_DTAG_PEER_CONGEST = 0x00020003, 232 /* Peer Congestion Notification Descriptor */ 233 ELS_DTAG_CONGESTION = 0x00020004, 234 /* Congestion Notification Descriptor */ 235 ELS_DTAG_FPIN_REGISTER = 0x00030001, 236 /* FPIN Registration Descriptor */ 237 }; 238 239 /* 240 * Initializer useful for decoding table. 241 * Please keep this in sync with the above definitions. 242 */ 243 #define FC_LS_TLV_DTAG_INIT { \ 244 { ELS_DTAG_LS_REQ_INFO, "Link Service Request Information" }, \ 245 { ELS_DTAG_LNK_FAULT_CAP, "Link Fault Capability" }, \ 246 { ELS_DTAG_CG_SIGNAL_CAP, "Congestion Signaling Capability" }, \ 247 { ELS_DTAG_LNK_INTEGRITY, "Link Integrity Notification" }, \ 248 { ELS_DTAG_DELIVERY, "Delivery Notification Present" }, \ 249 { ELS_DTAG_PEER_CONGEST, "Peer Congestion Notification" }, \ 250 { ELS_DTAG_CONGESTION, "Congestion Notification" }, \ 251 { ELS_DTAG_FPIN_REGISTER, "FPIN Registration" }, \ 252 } 253 254 255 /* 256 * Generic Link Service TLV Descriptor format 257 * 258 * This structure, as it defines no payload, will also be referred to 259 * as the "tlv header" - which contains the tag and len fields. 260 */ 261 struct fc_tlv_desc { 262 __be32 desc_tag; /* Notification Descriptor Tag */ 263 __be32 desc_len; /* Length of Descriptor (in bytes). 264 * Size of descriptor excluding 265 * desc_tag and desc_len fields. 266 */ 267 __u8 desc_value[]; /* Descriptor Value */ 268 }; 269 270 /* Descriptor tag and len fields are considered the mandatory header 271 * for a descriptor 272 */ 273 #define FC_TLV_DESC_HDR_SZ sizeof(struct fc_tlv_desc) 274 275 /* 276 * Macro, used when initializing payloads, to return the descriptor length. 277 * Length is size of descriptor minus the tag and len fields. 278 */ 279 #define FC_TLV_DESC_LENGTH_FROM_SZ(desc) \ 280 (sizeof(desc) - FC_TLV_DESC_HDR_SZ) 281 282 /* Macro, used on received payloads, to return the descriptor length */ 283 #define FC_TLV_DESC_SZ_FROM_LENGTH(tlv) \ 284 (__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ) 285 286 /* 287 * This helper is used to walk descriptors in a descriptor list. 288 * Given the address of the current descriptor, which minimally contains a 289 * tag and len field, calculate the address of the next descriptor based 290 * on the len field. 291 */ 292 static inline void *fc_tlv_next_desc(void *desc) 293 { 294 struct fc_tlv_desc *tlv = desc; 295 296 return (desc + FC_TLV_DESC_SZ_FROM_LENGTH(tlv)); 297 } 298 299 300 /* 301 * Link Service Request Information Descriptor 302 */ 303 struct fc_els_lsri_desc { 304 __be32 desc_tag; /* descriptor tag (0x0000 0001) */ 305 __be32 desc_len; /* Length of Descriptor (in bytes) (4). 306 * Size of descriptor excluding 307 * desc_tag and desc_len fields. 308 */ 309 struct { 310 __u8 cmd; /* ELS cmd byte */ 311 __u8 bytes[3]; /* bytes 1..3 */ 312 } rqst_w0; /* Request word 0 */ 313 }; 314 315 316 /* 317 * Common service parameters (N ports). 318 */ 319 struct fc_els_csp { 320 __u8 sp_hi_ver; /* highest version supported (obs.) */ 321 __u8 sp_lo_ver; /* highest version supported (obs.) */ 322 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 323 __be16 sp_features; /* common feature flags */ 324 __be16 sp_bb_data; /* b-b state number and data field sz */ 325 union { 326 struct { 327 __be16 _sp_tot_seq; /* total concurrent sequences */ 328 __be16 _sp_rel_off; /* rel. offset by info cat */ 329 } sp_plogi; 330 struct { 331 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 332 } sp_flogi_acc; 333 } sp_u; 334 __be32 sp_e_d_tov; /* error detect timeout value */ 335 }; 336 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 337 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 338 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 339 340 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 341 342 /* 343 * Minimum and maximum values for max data field size in service parameters. 344 */ 345 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 346 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 347 348 /* 349 * sp_features 350 */ 351 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ 352 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ 353 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 354 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 355 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 356 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ 357 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 358 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 359 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 360 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 361 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 362 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 363 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 364 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 365 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 366 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 367 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 368 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 369 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 370 371 /* 372 * Class-specific service parameters. 373 */ 374 struct fc_els_cssp { 375 __be16 cp_class; /* class flags */ 376 __be16 cp_init; /* initiator flags */ 377 __be16 cp_recip; /* recipient flags */ 378 __be16 cp_rdfs; /* receive data field size */ 379 __be16 cp_con_seq; /* concurrent sequences */ 380 __be16 cp_ee_cred; /* N-port end-to-end credit */ 381 __u8 cp_resv1; /* reserved */ 382 __u8 cp_open_seq; /* open sequences per exchange */ 383 __u8 _cp_resv2[2]; /* reserved */ 384 }; 385 386 /* 387 * cp_class flags. 388 */ 389 #define FC_CPC_VALID 0x8000 /* class valid */ 390 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 391 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 392 #define FC_CPC_CAMP 0x0200 /* camp-on */ 393 #define FC_CPC_PRI 0x0080 /* priority */ 394 395 /* 396 * cp_init flags. 397 * (TBD: not all flags defined here). 398 */ 399 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 400 401 /* 402 * cp_recip flags. 403 */ 404 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 405 406 /* 407 * NFC_ELS_FLOGI: Fabric login request. 408 * NFC_ELS_PLOGI: Port login request (same format). 409 */ 410 struct fc_els_flogi { 411 __u8 fl_cmd; /* command */ 412 __u8 _fl_resvd[3]; /* must be zero */ 413 struct fc_els_csp fl_csp; /* common service parameters */ 414 __be64 fl_wwpn; /* port name */ 415 __be64 fl_wwnn; /* node name */ 416 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 417 __u8 fl_vend[16]; /* vendor version level */ 418 } __attribute__((__packed__)); 419 420 /* 421 * Process login service parameter page. 422 */ 423 struct fc_els_spp { 424 __u8 spp_type; /* type code or common service params */ 425 __u8 spp_type_ext; /* type code extension */ 426 __u8 spp_flags; 427 __u8 _spp_resvd; 428 __be32 spp_orig_pa; /* originator process associator */ 429 __be32 spp_resp_pa; /* responder process associator */ 430 __be32 spp_params; /* service parameters */ 431 }; 432 433 /* 434 * spp_flags. 435 */ 436 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 437 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 438 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 439 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 440 441 /* 442 * SPP response code in spp_flags - lower 4 bits. 443 */ 444 enum fc_els_spp_resp { 445 FC_SPP_RESP_ACK = 1, /* request executed */ 446 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 447 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 448 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 449 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 450 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 451 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 452 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 453 }; 454 455 /* 456 * ELS_RRQ - Reinstate Recovery Qualifier 457 */ 458 struct fc_els_rrq { 459 __u8 rrq_cmd; /* command (0x12) */ 460 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 461 __u8 rrq_resvd; /* reserved */ 462 __u8 rrq_s_id[3]; /* originator FID */ 463 __be16 rrq_ox_id; /* originator exchange ID */ 464 __be16 rrq_rx_id; /* responders exchange ID */ 465 }; 466 467 /* 468 * ELS_REC - Read exchange concise. 469 */ 470 struct fc_els_rec { 471 __u8 rec_cmd; /* command (0x13) */ 472 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 473 __u8 rec_resvd; /* reserved */ 474 __u8 rec_s_id[3]; /* originator FID */ 475 __be16 rec_ox_id; /* originator exchange ID */ 476 __be16 rec_rx_id; /* responders exchange ID */ 477 }; 478 479 /* 480 * ELS_REC LS_ACC payload. 481 */ 482 struct fc_els_rec_acc { 483 __u8 reca_cmd; /* accept (0x02) */ 484 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 485 __be16 reca_ox_id; /* originator exchange ID */ 486 __be16 reca_rx_id; /* responders exchange ID */ 487 __u8 reca_resvd1; /* reserved */ 488 __u8 reca_ofid[3]; /* originator FID */ 489 __u8 reca_resvd2; /* reserved */ 490 __u8 reca_rfid[3]; /* responder FID */ 491 __be32 reca_fc4value; /* FC4 value */ 492 __be32 reca_e_stat; /* ESB (exchange status block) status */ 493 }; 494 495 /* 496 * ELS_PRLI - Process login request and response. 497 */ 498 struct fc_els_prli { 499 __u8 prli_cmd; /* command */ 500 __u8 prli_spp_len; /* length of each serv. parm. page */ 501 __be16 prli_len; /* length of entire payload */ 502 /* service parameter pages follow */ 503 }; 504 505 /* 506 * ELS_PRLO - Process logout request and response. 507 */ 508 struct fc_els_prlo { 509 __u8 prlo_cmd; /* command */ 510 __u8 prlo_obs; /* obsolete, but shall be set to 10h */ 511 __be16 prlo_len; /* payload length */ 512 }; 513 514 /* 515 * ELS_ADISC payload 516 */ 517 struct fc_els_adisc { 518 __u8 adisc_cmd; 519 __u8 adisc_resv[3]; 520 __u8 adisc_resv1; 521 __u8 adisc_hard_addr[3]; 522 __be64 adisc_wwpn; 523 __be64 adisc_wwnn; 524 __u8 adisc_resv2; 525 __u8 adisc_port_id[3]; 526 } __attribute__((__packed__)); 527 528 /* 529 * ELS_LOGO - process or fabric logout. 530 */ 531 struct fc_els_logo { 532 __u8 fl_cmd; /* command code */ 533 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 534 __u8 fl_resvd; /* reserved */ 535 __u8 fl_n_port_id[3];/* N port ID */ 536 __be64 fl_n_port_wwn; /* port name */ 537 }; 538 539 /* 540 * ELS_RTV - read timeout value. 541 */ 542 struct fc_els_rtv { 543 __u8 rtv_cmd; /* command code 0x0e */ 544 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 545 }; 546 547 /* 548 * LS_ACC for ELS_RTV - read timeout value. 549 */ 550 struct fc_els_rtv_acc { 551 __u8 rtv_cmd; /* command code 0x02 */ 552 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 553 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 554 __be32 rtv_e_d_tov; /* error detection timeout value */ 555 __be32 rtv_toq; /* timeout qualifier (see below) */ 556 }; 557 558 /* 559 * rtv_toq bits. 560 */ 561 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 562 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 563 564 /* 565 * ELS_SCR - state change registration payload. 566 */ 567 struct fc_els_scr { 568 __u8 scr_cmd; /* command code */ 569 __u8 scr_resv[6]; /* reserved */ 570 __u8 scr_reg_func; /* registration function (see below) */ 571 }; 572 573 enum fc_els_scr_func { 574 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 575 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 576 ELS_SCRF_FULL = 3, /* full registration */ 577 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 578 }; 579 580 /* 581 * ELS_RSCN - registered state change notification payload. 582 */ 583 struct fc_els_rscn { 584 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 585 __u8 rscn_page_len; /* page length (4) */ 586 __be16 rscn_plen; /* payload length including this word */ 587 588 /* followed by 4-byte generic affected Port_ID pages */ 589 }; 590 591 struct fc_els_rscn_page { 592 __u8 rscn_page_flags; /* event and address format */ 593 __u8 rscn_fid[3]; /* fabric ID */ 594 }; 595 596 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 597 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 598 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 599 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 600 601 enum fc_els_rscn_ev_qual { 602 ELS_EV_QUAL_NONE = 0, /* unspecified */ 603 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 604 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 605 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 606 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 607 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 608 }; 609 610 enum fc_els_rscn_addr_fmt { 611 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 612 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 613 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 614 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 615 }; 616 617 /* 618 * ELS_RNID - request Node ID. 619 */ 620 struct fc_els_rnid { 621 __u8 rnid_cmd; /* RNID opcode (0x78) */ 622 __u8 rnid_resv[3]; /* reserved */ 623 __u8 rnid_fmt; /* data format */ 624 __u8 rnid_resv2[3]; /* reserved */ 625 }; 626 627 /* 628 * Node Identification Data formats (rnid_fmt) 629 */ 630 enum fc_els_rnid_fmt { 631 ELS_RNIDF_NONE = 0, /* no specific identification data */ 632 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 633 }; 634 635 /* 636 * ELS_RNID response. 637 */ 638 struct fc_els_rnid_resp { 639 __u8 rnid_cmd; /* response code (LS_ACC) */ 640 __u8 rnid_resv[3]; /* reserved */ 641 __u8 rnid_fmt; /* data format */ 642 __u8 rnid_cid_len; /* common ID data length */ 643 __u8 rnid_resv2; /* reserved */ 644 __u8 rnid_sid_len; /* specific ID data length */ 645 }; 646 647 struct fc_els_rnid_cid { 648 __be64 rnid_wwpn; /* N port name */ 649 __be64 rnid_wwnn; /* node name */ 650 }; 651 652 struct fc_els_rnid_gen { 653 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 654 __be32 rnid_atype; /* associated type (see below) */ 655 __be32 rnid_phys_port; /* physical port number */ 656 __be32 rnid_att_nodes; /* number of attached nodes */ 657 __u8 rnid_node_mgmt; /* node management (see below) */ 658 __u8 rnid_ip_ver; /* IP version (see below) */ 659 __be16 rnid_prot_port; /* UDP / TCP port number */ 660 __be32 rnid_ip_addr[4]; /* IP address */ 661 __u8 rnid_resvd[2]; /* reserved */ 662 __be16 rnid_vend_spec; /* vendor-specific field */ 663 }; 664 665 enum fc_els_rnid_atype { 666 ELS_RNIDA_UNK = 0x01, /* unknown */ 667 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 668 ELS_RNIDA_HUB = 0x03, 669 ELS_RNIDA_SWITCH = 0x04, 670 ELS_RNIDA_GATEWAY = 0x05, 671 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 672 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 673 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 674 ELS_RNIDA_STORAGE = 0x09, 675 ELS_RNIDA_HOST = 0x0a, 676 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 677 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 678 ELS_RNIDA_NAS = 0x11, /* NAS server */ 679 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 680 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 681 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 682 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 683 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 684 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 685 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 686 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 687 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 688 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 689 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 690 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 691 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 692 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 693 }; 694 695 enum fc_els_rnid_mgmt { 696 ELS_RNIDM_SNMP = 0, 697 ELS_RNIDM_TELNET = 1, 698 ELS_RNIDM_HTTP = 2, 699 ELS_RNIDM_HTTPS = 3, 700 ELS_RNIDM_XML = 4, /* HTTP + XML */ 701 }; 702 703 enum fc_els_rnid_ipver { 704 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 705 ELS_RNIDIP_V4 = 1, /* IPv4 */ 706 ELS_RNIDIP_V6 = 2, /* IPv6 */ 707 }; 708 709 /* 710 * ELS RPL - Read Port List. 711 */ 712 struct fc_els_rpl { 713 __u8 rpl_cmd; /* command */ 714 __u8 rpl_resv[5]; /* reserved - must be zero */ 715 __be16 rpl_max_size; /* maximum response size or zero */ 716 __u8 rpl_resv1; /* reserved - must be zero */ 717 __u8 rpl_index[3]; /* starting index */ 718 }; 719 720 /* 721 * Port number block in RPL response. 722 */ 723 struct fc_els_pnb { 724 __be32 pnb_phys_pn; /* physical port number */ 725 __u8 pnb_resv; /* reserved */ 726 __u8 pnb_port_id[3]; /* port ID */ 727 __be64 pnb_wwpn; /* port name */ 728 }; 729 730 /* 731 * RPL LS_ACC response. 732 */ 733 struct fc_els_rpl_resp { 734 __u8 rpl_cmd; /* ELS_LS_ACC */ 735 __u8 rpl_resv1; /* reserved - must be zero */ 736 __be16 rpl_plen; /* payload length */ 737 __u8 rpl_resv2; /* reserved - must be zero */ 738 __u8 rpl_llen[3]; /* list length */ 739 __u8 rpl_resv3; /* reserved - must be zero */ 740 __u8 rpl_index[3]; /* starting index */ 741 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 742 }; 743 744 /* 745 * Link Error Status Block. 746 */ 747 struct fc_els_lesb { 748 __be32 lesb_link_fail; /* link failure count */ 749 __be32 lesb_sync_loss; /* loss of synchronization count */ 750 __be32 lesb_sig_loss; /* loss of signal count */ 751 __be32 lesb_prim_err; /* primitive sequence error count */ 752 __be32 lesb_inv_word; /* invalid transmission word count */ 753 __be32 lesb_inv_crc; /* invalid CRC count */ 754 }; 755 756 /* 757 * ELS RPS - Read Port Status Block request. 758 */ 759 struct fc_els_rps { 760 __u8 rps_cmd; /* command */ 761 __u8 rps_resv[2]; /* reserved - must be zero */ 762 __u8 rps_flag; /* flag - see below */ 763 __be64 rps_port_spec; /* port selection */ 764 }; 765 766 enum fc_els_rps_flag { 767 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 768 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 769 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 770 }; 771 772 /* 773 * ELS RPS LS_ACC response. 774 */ 775 struct fc_els_rps_resp { 776 __u8 rps_cmd; /* command - LS_ACC */ 777 __u8 rps_resv[2]; /* reserved - must be zero */ 778 __u8 rps_flag; /* flag - see below */ 779 __u8 rps_resv2[2]; /* reserved */ 780 __be16 rps_status; /* port status - see below */ 781 struct fc_els_lesb rps_lesb; /* link error status block */ 782 }; 783 784 enum fc_els_rps_resp_flag { 785 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 786 }; 787 788 enum fc_els_rps_resp_status { 789 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 790 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 791 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 792 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 793 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 794 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 795 }; 796 797 /* 798 * ELS LIRR - Link Incident Record Registration request. 799 */ 800 struct fc_els_lirr { 801 __u8 lirr_cmd; /* command */ 802 __u8 lirr_resv[3]; /* reserved - must be zero */ 803 __u8 lirr_func; /* registration function */ 804 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 805 __u8 lirr_resv2[2]; /* reserved - must be zero */ 806 }; 807 808 enum fc_els_lirr_func { 809 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 810 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 811 ELS_LIRR_CLEAR = 0xff /* clear registration */ 812 }; 813 814 /* 815 * ELS SRL - Scan Remote Loop request. 816 */ 817 struct fc_els_srl { 818 __u8 srl_cmd; /* command */ 819 __u8 srl_resv[3]; /* reserved - must be zero */ 820 __u8 srl_flag; /* flag - see below */ 821 __u8 srl_flag_param[3]; /* flag parameter */ 822 }; 823 824 enum fc_els_srl_flag { 825 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 826 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 827 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 828 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 829 }; 830 831 /* 832 * ELS RLS - Read Link Error Status Block request. 833 */ 834 struct fc_els_rls { 835 __u8 rls_cmd; /* command */ 836 __u8 rls_resv[4]; /* reserved - must be zero */ 837 __u8 rls_port_id[3]; /* port ID */ 838 }; 839 840 /* 841 * ELS RLS LS_ACC Response. 842 */ 843 struct fc_els_rls_resp { 844 __u8 rls_cmd; /* ELS_LS_ACC */ 845 __u8 rls_resv[3]; /* reserved - must be zero */ 846 struct fc_els_lesb rls_lesb; /* link error status block */ 847 }; 848 849 /* 850 * ELS RLIR - Registered Link Incident Report. 851 * This is followed by the CLIR and the CLID, described below. 852 */ 853 struct fc_els_rlir { 854 __u8 rlir_cmd; /* command */ 855 __u8 rlir_resv[3]; /* reserved - must be zero */ 856 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 857 __u8 rlir_clr_len; /* common link incident record length */ 858 __u8 rlir_cld_len; /* common link incident desc. length */ 859 __u8 rlir_slr_len; /* spec. link incident record length */ 860 }; 861 862 /* 863 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 864 */ 865 struct fc_els_clir { 866 __be64 clir_wwpn; /* incident port name */ 867 __be64 clir_wwnn; /* incident port node name */ 868 __u8 clir_port_type; /* incident port type */ 869 __u8 clir_port_id[3]; /* incident port ID */ 870 871 __be64 clir_conn_wwpn; /* connected port name */ 872 __be64 clir_conn_wwnn; /* connected node name */ 873 __be64 clir_fab_name; /* fabric name */ 874 __be32 clir_phys_port; /* physical port number */ 875 __be32 clir_trans_id; /* transaction ID */ 876 __u8 clir_resv[3]; /* reserved */ 877 __u8 clir_ts_fmt; /* time stamp format */ 878 __be64 clir_timestamp; /* time stamp */ 879 }; 880 881 /* 882 * CLIR clir_ts_fmt - time stamp format values. 883 */ 884 enum fc_els_clir_ts_fmt { 885 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 886 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 887 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 888 }; 889 890 /* 891 * Common Link Incident Descriptor - sent via RLIR. 892 */ 893 struct fc_els_clid { 894 __u8 clid_iq; /* incident qualifier flags */ 895 __u8 clid_ic; /* incident code */ 896 __be16 clid_epai; /* domain/area of ISL */ 897 }; 898 899 /* 900 * CLID incident qualifier flags. 901 */ 902 enum fc_els_clid_iq { 903 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 904 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 905 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 906 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 907 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 908 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 909 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 910 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 911 }; 912 913 /* 914 * CLID incident code. 915 */ 916 enum fc_els_clid_ic { 917 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 918 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 919 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 920 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 921 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 922 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 923 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 924 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 925 }; 926 927 /* 928 * Link Integrity event types 929 */ 930 enum fc_fpin_li_event_types { 931 FPIN_LI_UNKNOWN = 0x0, 932 FPIN_LI_LINK_FAILURE = 0x1, 933 FPIN_LI_LOSS_OF_SYNC = 0x2, 934 FPIN_LI_LOSS_OF_SIG = 0x3, 935 FPIN_LI_PRIM_SEQ_ERR = 0x4, 936 FPIN_LI_INVALID_TX_WD = 0x5, 937 FPIN_LI_INVALID_CRC = 0x6, 938 FPIN_LI_DEVICE_SPEC = 0xF, 939 }; 940 941 /* 942 * Initializer useful for decoding table. 943 * Please keep this in sync with the above definitions. 944 */ 945 #define FC_FPIN_LI_EVT_TYPES_INIT { \ 946 { FPIN_LI_UNKNOWN, "Unknown" }, \ 947 { FPIN_LI_LINK_FAILURE, "Link Failure" }, \ 948 { FPIN_LI_LOSS_OF_SYNC, "Loss of Synchronization" }, \ 949 { FPIN_LI_LOSS_OF_SIG, "Loss of Signal" }, \ 950 { FPIN_LI_PRIM_SEQ_ERR, "Primitive Sequence Protocol Error" }, \ 951 { FPIN_LI_INVALID_TX_WD, "Invalid Transmission Word" }, \ 952 { FPIN_LI_INVALID_CRC, "Invalid CRC" }, \ 953 { FPIN_LI_DEVICE_SPEC, "Device Specific" }, \ 954 } 955 956 /* 957 * Delivery event types 958 */ 959 enum fc_fpin_deli_event_types { 960 FPIN_DELI_UNKNOWN = 0x0, 961 FPIN_DELI_TIMEOUT = 0x1, 962 FPIN_DELI_UNABLE_TO_ROUTE = 0x2, 963 FPIN_DELI_DEVICE_SPEC = 0xF, 964 }; 965 966 /* 967 * Initializer useful for decoding table. 968 * Please keep this in sync with the above definitions. 969 */ 970 #define FC_FPIN_DELI_EVT_TYPES_INIT { \ 971 { FPIN_DELI_UNKNOWN, "Unknown" }, \ 972 { FPIN_DELI_TIMEOUT, "Timeout" }, \ 973 { FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \ 974 { FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \ 975 } 976 977 /* 978 * Congestion event types 979 */ 980 enum fc_fpin_congn_event_types { 981 FPIN_CONGN_CLEAR = 0x0, 982 FPIN_CONGN_LOST_CREDIT = 0x1, 983 FPIN_CONGN_CREDIT_STALL = 0x2, 984 FPIN_CONGN_OVERSUBSCRIPTION = 0x3, 985 FPIN_CONGN_DEVICE_SPEC = 0xF, 986 }; 987 988 /* 989 * Initializer useful for decoding table. 990 * Please keep this in sync with the above definitions. 991 */ 992 #define FC_FPIN_CONGN_EVT_TYPES_INIT { \ 993 { FPIN_CONGN_CLEAR, "Clear" }, \ 994 { FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \ 995 { FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \ 996 { FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \ 997 { FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \ 998 } 999 1000 enum fc_fpin_congn_severity_types { 1001 FPIN_CONGN_SEVERITY_WARNING = 0xF1, 1002 FPIN_CONGN_SEVERITY_ERROR = 0xF7, 1003 }; 1004 1005 /* 1006 * Link Integrity Notification Descriptor 1007 */ 1008 struct fc_fn_li_desc { 1009 __be32 desc_tag; /* Descriptor Tag (0x00020001) */ 1010 __be32 desc_len; /* Length of Descriptor (in bytes). 1011 * Size of descriptor excluding 1012 * desc_tag and desc_len fields. 1013 */ 1014 __be64 detecting_wwpn; /* Port Name that detected event */ 1015 __be64 attached_wwpn; /* Port Name of device attached to 1016 * detecting Port Name 1017 */ 1018 __be16 event_type; /* see enum fc_fpin_li_event_types */ 1019 __be16 event_modifier; /* Implementation specific value 1020 * describing the event type 1021 */ 1022 __be32 event_threshold;/* duration in ms of the link 1023 * integrity detection cycle 1024 */ 1025 __be32 event_count; /* minimum number of event 1026 * occurrences during the event 1027 * threshold to caause the LI event 1028 */ 1029 __be32 pname_count; /* number of portname_list elements */ 1030 __be64 pname_list[]; /* list of N_Port_Names accessible 1031 * through the attached port 1032 */ 1033 }; 1034 1035 /* 1036 * Delivery Notification Descriptor 1037 */ 1038 struct fc_fn_deli_desc { 1039 __be32 desc_tag; /* Descriptor Tag (0x00020002) */ 1040 __be32 desc_len; /* Length of Descriptor (in bytes). 1041 * Size of descriptor excluding 1042 * desc_tag and desc_len fields. 1043 */ 1044 __be64 detecting_wwpn; /* Port Name that detected event */ 1045 __be64 attached_wwpn; /* Port Name of device attached to 1046 * detecting Port Name 1047 */ 1048 __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */ 1049 }; 1050 1051 /* 1052 * Peer Congestion Notification Descriptor 1053 */ 1054 struct fc_fn_peer_congn_desc { 1055 __be32 desc_tag; /* Descriptor Tag (0x00020003) */ 1056 __be32 desc_len; /* Length of Descriptor (in bytes). 1057 * Size of descriptor excluding 1058 * desc_tag and desc_len fields. 1059 */ 1060 __be64 detecting_wwpn; /* Port Name that detected event */ 1061 __be64 attached_wwpn; /* Port Name of device attached to 1062 * detecting Port Name 1063 */ 1064 __be16 event_type; /* see enum fc_fpin_congn_event_types */ 1065 __be16 event_modifier; /* Implementation specific value 1066 * describing the event type 1067 */ 1068 __be32 event_period; /* duration (ms) of the detected 1069 * congestion event 1070 */ 1071 __be32 pname_count; /* number of portname_list elements */ 1072 __be64 pname_list[]; /* list of N_Port_Names accessible 1073 * through the attached port 1074 */ 1075 }; 1076 1077 /* 1078 * Congestion Notification Descriptor 1079 */ 1080 struct fc_fn_congn_desc { 1081 __be32 desc_tag; /* Descriptor Tag (0x00020004) */ 1082 __be32 desc_len; /* Length of Descriptor (in bytes). 1083 * Size of descriptor excluding 1084 * desc_tag and desc_len fields. 1085 */ 1086 __be16 event_type; /* see enum fc_fpin_congn_event_types */ 1087 __be16 event_modifier; /* Implementation specific value 1088 * describing the event type 1089 */ 1090 __be32 event_period; /* duration (ms) of the detected 1091 * congestion event 1092 */ 1093 __u8 severity; /* command */ 1094 __u8 resv[3]; /* reserved - must be zero */ 1095 }; 1096 1097 /* 1098 * ELS_FPIN - Fabric Performance Impact Notification 1099 */ 1100 struct fc_els_fpin { 1101 __u8 fpin_cmd; /* command (0x16) */ 1102 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 1103 __be32 desc_len; /* Length of Descriptor List (in bytes). 1104 * Size of ELS excluding fpin_cmd, 1105 * fpin_zero and desc_len fields. 1106 */ 1107 struct fc_tlv_desc fpin_desc[]; /* Descriptor list */ 1108 }; 1109 1110 /* Diagnostic Function Descriptor - FPIN Registration */ 1111 struct fc_df_desc_fpin_reg { 1112 __be32 desc_tag; /* FPIN Registration (0x00030001) */ 1113 __be32 desc_len; /* Length of Descriptor (in bytes). 1114 * Size of descriptor excluding 1115 * desc_tag and desc_len fields. 1116 */ 1117 __be32 count; /* Number of desc_tags elements */ 1118 __be32 desc_tags[]; /* Array of Descriptor Tags. 1119 * Each tag indicates a function 1120 * supported by the N_Port (request) 1121 * or by the N_Port and Fabric 1122 * Controller (reply; may be a subset 1123 * of the request). 1124 * See ELS_FN_DTAG_xxx for tag values. 1125 */ 1126 }; 1127 1128 /* 1129 * ELS_RDF - Register Diagnostic Functions 1130 */ 1131 struct fc_els_rdf { 1132 __u8 fpin_cmd; /* command (0x19) */ 1133 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 1134 __be32 desc_len; /* Length of Descriptor List (in bytes). 1135 * Size of ELS excluding fpin_cmd, 1136 * fpin_zero and desc_len fields. 1137 */ 1138 struct fc_tlv_desc desc[]; /* Descriptor list */ 1139 }; 1140 1141 /* 1142 * ELS RDF LS_ACC Response. 1143 */ 1144 struct fc_els_rdf_resp { 1145 struct fc_els_ls_acc acc_hdr; 1146 __be32 desc_list_len; /* Length of response (in 1147 * bytes). Excludes acc_hdr 1148 * and desc_list_len fields. 1149 */ 1150 struct fc_els_lsri_desc lsri; 1151 struct fc_tlv_desc desc[]; /* Supported Descriptor list */ 1152 }; 1153 1154 1155 /* 1156 * Diagnostic Capability Descriptors for EDC ELS 1157 */ 1158 1159 /* 1160 * Diagnostic: Link Fault Capability Descriptor 1161 */ 1162 struct fc_diag_lnkflt_desc { 1163 __be32 desc_tag; /* Descriptor Tag (0x0001000D) */ 1164 __be32 desc_len; /* Length of Descriptor (in bytes). 1165 * Size of descriptor excluding 1166 * desc_tag and desc_len fields. 1167 * 12 bytes 1168 */ 1169 __be32 degrade_activate_threshold; 1170 __be32 degrade_deactivate_threshold; 1171 __be32 fec_degrade_interval; 1172 }; 1173 1174 enum fc_edc_cg_signal_cap_types { 1175 /* Note: Capability: bits 31:4 Rsvd; bits 3:0 are capabilities */ 1176 EDC_CG_SIG_NOTSUPPORTED = 0x00, /* neither supported */ 1177 EDC_CG_SIG_WARN_ONLY = 0x01, 1178 EDC_CG_SIG_WARN_ALARM = 0x02, /* both supported */ 1179 }; 1180 1181 /* 1182 * Initializer useful for decoding table. 1183 * Please keep this in sync with the above definitions. 1184 */ 1185 #define FC_EDC_CG_SIGNAL_CAP_TYPES_INIT { \ 1186 { EDC_CG_SIG_NOTSUPPORTED, "Signaling Not Supported" }, \ 1187 { EDC_CG_SIG_WARN_ONLY, "Warning Signal" }, \ 1188 { EDC_CG_SIG_WARN_ALARM, "Warning and Alarm Signals" }, \ 1189 } 1190 1191 enum fc_diag_cg_sig_freq_types { 1192 EDC_CG_SIGFREQ_CNT_MIN = 1, /* Min Frequency Count */ 1193 EDC_CG_SIGFREQ_CNT_MAX = 999, /* Max Frequency Count */ 1194 1195 EDC_CG_SIGFREQ_SEC = 0x1, /* Units: seconds */ 1196 EDC_CG_SIGFREQ_MSEC = 0x2, /* Units: milliseconds */ 1197 }; 1198 1199 struct fc_diag_cg_sig_freq { 1200 __be16 count; /* Time between signals 1201 * note: upper 6 bits rsvd 1202 */ 1203 __be16 units; /* Time unit for count 1204 * note: upper 12 bits rsvd 1205 */ 1206 }; 1207 1208 /* 1209 * Diagnostic: Congestion Signaling Capability Descriptor 1210 */ 1211 struct fc_diag_cg_sig_desc { 1212 __be32 desc_tag; /* Descriptor Tag (0x0001000F) */ 1213 __be32 desc_len; /* Length of Descriptor (in bytes). 1214 * Size of descriptor excluding 1215 * desc_tag and desc_len fields. 1216 * 16 bytes 1217 */ 1218 __be32 xmt_signal_capability; 1219 struct fc_diag_cg_sig_freq xmt_signal_frequency; 1220 __be32 rcv_signal_capability; 1221 struct fc_diag_cg_sig_freq rcv_signal_frequency; 1222 }; 1223 1224 /* 1225 * ELS_EDC - Exchange Diagnostic Capabilities 1226 */ 1227 struct fc_els_edc { 1228 __u8 edc_cmd; /* command (0x17) */ 1229 __u8 edc_zero[3]; /* specified as zero - part of cmd */ 1230 __be32 desc_len; /* Length of Descriptor List (in bytes). 1231 * Size of ELS excluding edc_cmd, 1232 * edc_zero and desc_len fields. 1233 */ 1234 struct fc_tlv_desc desc[]; 1235 /* Diagnostic Descriptor list */ 1236 }; 1237 1238 /* 1239 * ELS EDC LS_ACC Response. 1240 */ 1241 struct fc_els_edc_resp { 1242 struct fc_els_ls_acc acc_hdr; 1243 __be32 desc_list_len; /* Length of response (in 1244 * bytes). Excludes acc_hdr 1245 * and desc_list_len fields. 1246 */ 1247 struct fc_els_lsri_desc lsri; 1248 struct fc_tlv_desc desc[]; 1249 /* Supported Diagnostic Descriptor list */ 1250 }; 1251 1252 1253 #endif /* _FC_ELS_H_ */ 1254