Where Online Learning is simpler!
The C and C++ Include Header Files
cat -n /usr/include/scsi/fc/fc_els.h
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 #include <stddef.h> /* for offsetof */ 15 16 /* 17 * Fibre Channel Switch - Enhanced Link Services definitions. 18 * From T11 FC-LS Rev 1.2 June 7, 2005. 19 */ 20 21 /* 22 * ELS Command codes - byte 0 of the frame payload 23 */ 24 enum fc_els_cmd { 25 ELS_LS_RJT = 0x01, /* ESL reject */ 26 ELS_LS_ACC = 0x02, /* ESL Accept */ 27 ELS_PLOGI = 0x03, /* N_Port login */ 28 ELS_FLOGI = 0x04, /* F_Port login */ 29 ELS_LOGO = 0x05, /* Logout */ 30 ELS_ABTX = 0x06, /* Abort exchange - obsolete */ 31 ELS_RCS = 0x07, /* read connection status */ 32 ELS_RES = 0x08, /* read exchange status block */ 33 ELS_RSS = 0x09, /* read sequence status block */ 34 ELS_RSI = 0x0a, /* read sequence initiative */ 35 ELS_ESTS = 0x0b, /* establish streaming */ 36 ELS_ESTC = 0x0c, /* estimate credit */ 37 ELS_ADVC = 0x0d, /* advise credit */ 38 ELS_RTV = 0x0e, /* read timeout value */ 39 ELS_RLS = 0x0f, /* read link error status block */ 40 ELS_ECHO = 0x10, /* echo */ 41 ELS_TEST = 0x11, /* test */ 42 ELS_RRQ = 0x12, /* reinstate recovery qualifier */ 43 ELS_REC = 0x13, /* read exchange concise */ 44 ELS_SRR = 0x14, /* sequence retransmission request */ 45 ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */ 46 ELS_EDC = 0x17, /* Exchange Diagnostic Capabilities */ 47 ELS_RDP = 0x18, /* Read Diagnostic Parameters */ 48 ELS_RDF = 0x19, /* Register Diagnostic Functions */ 49 ELS_PRLI = 0x20, /* process login */ 50 ELS_PRLO = 0x21, /* process logout */ 51 ELS_SCN = 0x22, /* state change notification */ 52 ELS_TPLS = 0x23, /* test process login state */ 53 ELS_TPRLO = 0x24, /* third party process logout */ 54 ELS_LCLM = 0x25, /* login control list mgmt (obs) */ 55 ELS_GAID = 0x30, /* get alias_ID */ 56 ELS_FACT = 0x31, /* fabric activate alias_id */ 57 ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ 58 ELS_NACT = 0x33, /* N-port activate alias_id */ 59 ELS_NDACT = 0x34, /* N-port deactivate alias_id */ 60 ELS_QOSR = 0x40, /* quality of service request */ 61 ELS_RVCS = 0x41, /* read virtual circuit status */ 62 ELS_PDISC = 0x50, /* discover N_port service params */ 63 ELS_FDISC = 0x51, /* discover F_port service params */ 64 ELS_ADISC = 0x52, /* discover address */ 65 ELS_RNC = 0x53, /* report node cap (obs) */ 66 ELS_FARP_REQ = 0x54, /* FC ARP request */ 67 ELS_FARP_REPL = 0x55, /* FC ARP reply */ 68 ELS_RPS = 0x56, /* read port status block */ 69 ELS_RPL = 0x57, /* read port list */ 70 ELS_RPBC = 0x58, /* read port buffer condition */ 71 ELS_FAN = 0x60, /* fabric address notification */ 72 ELS_RSCN = 0x61, /* registered state change notification */ 73 ELS_SCR = 0x62, /* state change registration */ 74 ELS_RNFT = 0x63, /* report node FC-4 types */ 75 ELS_CSR = 0x68, /* clock synch. request */ 76 ELS_CSU = 0x69, /* clock synch. update */ 77 ELS_LINIT = 0x70, /* loop initialize */ 78 ELS_LSTS = 0x72, /* loop status */ 79 ELS_RNID = 0x78, /* request node ID data */ 80 ELS_RLIR = 0x79, /* registered link incident report */ 81 ELS_LIRR = 0x7a, /* link incident record registration */ 82 ELS_SRL = 0x7b, /* scan remote loop */ 83 ELS_SBRP = 0x7c, /* set bit-error reporting params */ 84 ELS_RPSC = 0x7d, /* report speed capabilities */ 85 ELS_QSA = 0x7e, /* query security attributes */ 86 ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ 87 ELS_LKA = 0x80, /* link keep-alive */ 88 ELS_AUTH_ELS = 0x90, /* authentication ELS */ 89 }; 90 91 /* 92 * Initializer useful for decoding table. 93 * Please keep this in sync with the above definitions. 94 */ 95 #define FC_ELS_CMDS_INIT { \ 96 [ELS_LS_RJT] = "LS_RJT", \ 97 [ELS_LS_ACC] = "LS_ACC", \ 98 [ELS_PLOGI] = "PLOGI", \ 99 [ELS_FLOGI] = "FLOGI", \ 100 [ELS_LOGO] = "LOGO", \ 101 [ELS_ABTX] = "ABTX", \ 102 [ELS_RCS] = "RCS", \ 103 [ELS_RES] = "RES", \ 104 [ELS_RSS] = "RSS", \ 105 [ELS_RSI] = "RSI", \ 106 [ELS_ESTS] = "ESTS", \ 107 [ELS_ESTC] = "ESTC", \ 108 [ELS_ADVC] = "ADVC", \ 109 [ELS_RTV] = "RTV", \ 110 [ELS_RLS] = "RLS", \ 111 [ELS_ECHO] = "ECHO", \ 112 [ELS_TEST] = "TEST", \ 113 [ELS_RRQ] = "RRQ", \ 114 [ELS_REC] = "REC", \ 115 [ELS_SRR] = "SRR", \ 116 [ELS_FPIN] = "FPIN", \ 117 [ELS_EDC] = "EDC", \ 118 [ELS_RDP] = "RDP", \ 119 [ELS_RDF] = "RDF", \ 120 [ELS_PRLI] = "PRLI", \ 121 [ELS_PRLO] = "PRLO", \ 122 [ELS_SCN] = "SCN", \ 123 [ELS_TPLS] = "TPLS", \ 124 [ELS_TPRLO] = "TPRLO", \ 125 [ELS_LCLM] = "LCLM", \ 126 [ELS_GAID] = "GAID", \ 127 [ELS_FACT] = "FACT", \ 128 [ELS_FDACDT] = "FDACDT", \ 129 [ELS_NACT] = "NACT", \ 130 [ELS_NDACT] = "NDACT", \ 131 [ELS_QOSR] = "QOSR", \ 132 [ELS_RVCS] = "RVCS", \ 133 [ELS_PDISC] = "PDISC", \ 134 [ELS_FDISC] = "FDISC", \ 135 [ELS_ADISC] = "ADISC", \ 136 [ELS_RNC] = "RNC", \ 137 [ELS_FARP_REQ] = "FARP_REQ", \ 138 [ELS_FARP_REPL] = "FARP_REPL", \ 139 [ELS_RPS] = "RPS", \ 140 [ELS_RPL] = "RPL", \ 141 [ELS_RPBC] = "RPBC", \ 142 [ELS_FAN] = "FAN", \ 143 [ELS_RSCN] = "RSCN", \ 144 [ELS_SCR] = "SCR", \ 145 [ELS_RNFT] = "RNFT", \ 146 [ELS_CSR] = "CSR", \ 147 [ELS_CSU] = "CSU", \ 148 [ELS_LINIT] = "LINIT", \ 149 [ELS_LSTS] = "LSTS", \ 150 [ELS_RNID] = "RNID", \ 151 [ELS_RLIR] = "RLIR", \ 152 [ELS_LIRR] = "LIRR", \ 153 [ELS_SRL] = "SRL", \ 154 [ELS_SBRP] = "SBRP", \ 155 [ELS_RPSC] = "RPSC", \ 156 [ELS_QSA] = "QSA", \ 157 [ELS_EVFP] = "EVFP", \ 158 [ELS_LKA] = "LKA", \ 159 [ELS_AUTH_ELS] = "AUTH_ELS", \ 160 } 161 162 /* 163 * LS_ACC payload. 164 */ 165 struct fc_els_ls_acc { 166 __u8 la_cmd; /* command code ELS_LS_ACC */ 167 __u8 la_resv[3]; /* reserved */ 168 }; 169 170 /* 171 * ELS reject payload. 172 */ 173 struct fc_els_ls_rjt { 174 __u8 er_cmd; /* command code ELS_LS_RJT */ 175 __u8 er_resv[4]; /* reserved must be zero */ 176 __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ 177 __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ 178 __u8 er_vendor; /* vendor specific code */ 179 }; 180 181 /* 182 * ELS reject reason codes (er_reason). 183 */ 184 enum fc_els_rjt_reason { 185 ELS_RJT_NONE = 0, /* no reject - not to be sent */ 186 ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ 187 ELS_RJT_LOGIC = 0x03, /* logical error */ 188 ELS_RJT_BUSY = 0x05, /* logical busy */ 189 ELS_RJT_PROT = 0x07, /* protocol error */ 190 ELS_RJT_UNAB = 0x09, /* unable to perform command request */ 191 ELS_RJT_UNSUP = 0x0b, /* command not supported */ 192 ELS_RJT_INPROG = 0x0e, /* command already in progress */ 193 ELS_RJT_FIP = 0x20, /* FIP error */ 194 ELS_RJT_VENDOR = 0xff, /* vendor specific error */ 195 }; 196 197 198 /* 199 * reason code explanation (er_explan). 200 */ 201 enum fc_els_rjt_explan { 202 ELS_EXPL_NONE = 0x00, /* No additional explanation */ 203 ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ 204 ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ 205 ELS_EXPL_AH = 0x11, /* invalid association header */ 206 ELS_EXPL_AH_REQ = 0x13, /* association_header required */ 207 ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ 208 ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ 209 ELS_EXPL_INPROG = 0x19, /* Request already in progress */ 210 ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ 211 ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ 212 ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ 213 ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ 214 ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ 215 ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ 216 /* TBD - above definitions incomplete */ 217 }; 218 219 /* 220 * Link Service TLV Descriptor Tag Values 221 */ 222 enum fc_ls_tlv_dtag { 223 ELS_DTAG_LS_REQ_INFO = 0x00000001, 224 /* Link Service Request Information Descriptor */ 225 ELS_DTAG_LNK_FAULT_CAP = 0x0001000D, 226 /* Link Fault Capability Descriptor */ 227 ELS_DTAG_CG_SIGNAL_CAP = 0x0001000F, 228 /* Congestion Signaling Capability Descriptor */ 229 ELS_DTAG_LNK_INTEGRITY = 0x00020001, 230 /* Link Integrity Notification Descriptor */ 231 ELS_DTAG_DELIVERY = 0x00020002, 232 /* Delivery Notification Descriptor */ 233 ELS_DTAG_PEER_CONGEST = 0x00020003, 234 /* Peer Congestion Notification Descriptor */ 235 ELS_DTAG_CONGESTION = 0x00020004, 236 /* Congestion Notification Descriptor */ 237 ELS_DTAG_FPIN_REGISTER = 0x00030001, 238 /* FPIN Registration Descriptor */ 239 }; 240 241 /* 242 * Initializer useful for decoding table. 243 * Please keep this in sync with the above definitions. 244 */ 245 #define FC_LS_TLV_DTAG_INIT { \ 246 { ELS_DTAG_LS_REQ_INFO, "Link Service Request Information" }, \ 247 { ELS_DTAG_LNK_FAULT_CAP, "Link Fault Capability" }, \ 248 { ELS_DTAG_CG_SIGNAL_CAP, "Congestion Signaling Capability" }, \ 249 { ELS_DTAG_LNK_INTEGRITY, "Link Integrity Notification" }, \ 250 { ELS_DTAG_DELIVERY, "Delivery Notification Present" }, \ 251 { ELS_DTAG_PEER_CONGEST, "Peer Congestion Notification" }, \ 252 { ELS_DTAG_CONGESTION, "Congestion Notification" }, \ 253 { ELS_DTAG_FPIN_REGISTER, "FPIN Registration" }, \ 254 } 255 256 257 /* 258 * Generic Link Service TLV Descriptor format 259 * 260 * This structure, as it defines no payload, will also be referred to 261 * as the "tlv header" - which contains the tag and len fields. 262 */ 263 struct fc_tlv_desc { 264 __be32 desc_tag; /* Notification Descriptor Tag */ 265 __be32 desc_len; /* Length of Descriptor (in bytes). 266 * Size of descriptor excluding 267 * desc_tag and desc_len fields. 268 */ 269 __u8 desc_value[]; /* Descriptor Value */ 270 }; 271 272 /* Descriptor tag and len fields are considered the mandatory header 273 * for a descriptor 274 */ 275 #define FC_TLV_DESC_HDR_SZ sizeof(struct fc_tlv_desc) 276 277 /* 278 * Macro, used when initializing payloads, to return the descriptor length. 279 * Length is size of descriptor minus the tag and len fields. 280 */ 281 #define FC_TLV_DESC_LENGTH_FROM_SZ(desc) \ 282 (sizeof(desc) - FC_TLV_DESC_HDR_SZ) 283 284 /* Macro, used on received payloads, to return the descriptor length */ 285 #define FC_TLV_DESC_SZ_FROM_LENGTH(tlv) \ 286 (__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ) 287 288 /* 289 * This helper is used to walk descriptors in a descriptor list. 290 * Given the address of the current descriptor, which minimally contains a 291 * tag and len field, calculate the address of the next descriptor based 292 * on the len field. 293 */ 294 static __inline__ void *fc_tlv_next_desc(void *desc) 295 { 296 struct fc_tlv_desc *tlv = desc; 297 298 return (desc + FC_TLV_DESC_SZ_FROM_LENGTH(tlv)); 299 } 300 301 302 /* 303 * Link Service Request Information Descriptor 304 */ 305 struct fc_els_lsri_desc { 306 __be32 desc_tag; /* descriptor tag (0x0000 0001) */ 307 __be32 desc_len; /* Length of Descriptor (in bytes) (4). 308 * Size of descriptor excluding 309 * desc_tag and desc_len fields. 310 */ 311 struct { 312 __u8 cmd; /* ELS cmd byte */ 313 __u8 bytes[3]; /* bytes 1..3 */ 314 } rqst_w0; /* Request word 0 */ 315 }; 316 317 318 /* 319 * Common service parameters (N ports). 320 */ 321 struct fc_els_csp { 322 __u8 sp_hi_ver; /* highest version supported (obs.) */ 323 __u8 sp_lo_ver; /* highest version supported (obs.) */ 324 __be16 sp_bb_cred; /* buffer-to-buffer credits */ 325 __be16 sp_features; /* common feature flags */ 326 __be16 sp_bb_data; /* b-b state number and data field sz */ 327 union { 328 struct { 329 __be16 _sp_tot_seq; /* total concurrent sequences */ 330 __be16 _sp_rel_off; /* rel. offset by info cat */ 331 } sp_plogi; 332 struct { 333 __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ 334 } sp_flogi_acc; 335 } sp_u; 336 __be32 sp_e_d_tov; /* error detect timeout value */ 337 }; 338 #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq 339 #define sp_rel_off sp_u.sp_plogi._sp_rel_off 340 #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov 341 342 #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ 343 344 /* 345 * Minimum and maximum values for max data field size in service parameters. 346 */ 347 #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD 348 #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD 349 350 /* 351 * sp_features 352 */ 353 #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ 354 #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ 355 #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ 356 #define FC_SP_FT_RAND 0x4000 /* random relative offset */ 357 #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ 358 #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ 359 #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ 360 #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ 361 #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ 362 #define FC_SP_FT_MCAST 0x0200 /* multicast */ 363 #define FC_SP_FT_BCAST 0x0100 /* broadcast */ 364 #define FC_SP_FT_HUNT 0x0080 /* hunt group */ 365 #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ 366 #define FC_SP_FT_SEC 0x0020 /* reserved for security */ 367 #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ 368 #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ 369 #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ 370 #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ 371 #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ 372 373 /* 374 * Class-specific service parameters. 375 */ 376 struct fc_els_cssp { 377 __be16 cp_class; /* class flags */ 378 __be16 cp_init; /* initiator flags */ 379 __be16 cp_recip; /* recipient flags */ 380 __be16 cp_rdfs; /* receive data field size */ 381 __be16 cp_con_seq; /* concurrent sequences */ 382 __be16 cp_ee_cred; /* N-port end-to-end credit */ 383 __u8 cp_resv1; /* reserved */ 384 __u8 cp_open_seq; /* open sequences per exchange */ 385 __u8 _cp_resv2[2]; /* reserved */ 386 }; 387 388 /* 389 * cp_class flags. 390 */ 391 #define FC_CPC_VALID 0x8000 /* class valid */ 392 #define FC_CPC_IMIX 0x4000 /* intermix mode */ 393 #define FC_CPC_SEQ 0x0800 /* sequential delivery */ 394 #define FC_CPC_CAMP 0x0200 /* camp-on */ 395 #define FC_CPC_PRI 0x0080 /* priority */ 396 397 /* 398 * cp_init flags. 399 * (TBD: not all flags defined here). 400 */ 401 #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ 402 403 /* 404 * cp_recip flags. 405 */ 406 #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ 407 408 /* 409 * NFC_ELS_FLOGI: Fabric login request. 410 * NFC_ELS_PLOGI: Port login request (same format). 411 */ 412 struct fc_els_flogi { 413 __u8 fl_cmd; /* command */ 414 __u8 _fl_resvd[3]; /* must be zero */ 415 struct fc_els_csp fl_csp; /* common service parameters */ 416 __be64 fl_wwpn; /* port name */ 417 __be64 fl_wwnn; /* node name */ 418 struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ 419 __u8 fl_vend[16]; /* vendor version level */ 420 } __attribute__((__packed__)); 421 422 /* 423 * Process login service parameter page. 424 */ 425 struct fc_els_spp { 426 __u8 spp_type; /* type code or common service params */ 427 __u8 spp_type_ext; /* type code extension */ 428 __u8 spp_flags; 429 __u8 _spp_resvd; 430 __be32 spp_orig_pa; /* originator process associator */ 431 __be32 spp_resp_pa; /* responder process associator */ 432 __be32 spp_params; /* service parameters */ 433 }; 434 435 /* 436 * spp_flags. 437 */ 438 #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ 439 #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ 440 #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ 441 #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ 442 443 /* 444 * SPP response code in spp_flags - lower 4 bits. 445 */ 446 enum fc_els_spp_resp { 447 FC_SPP_RESP_ACK = 1, /* request executed */ 448 FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ 449 FC_SPP_RESP_INIT = 3, /* initialization not complete */ 450 FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ 451 FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ 452 FC_SPP_RESP_COND = 6, /* request completed conditionally */ 453 FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ 454 FC_SPP_RESP_INVL = 8, /* SPP is invalid */ 455 }; 456 457 /* 458 * ELS_RRQ - Reinstate Recovery Qualifier 459 */ 460 struct fc_els_rrq { 461 __u8 rrq_cmd; /* command (0x12) */ 462 __u8 rrq_zero[3]; /* specified as zero - part of cmd */ 463 __u8 rrq_resvd; /* reserved */ 464 __u8 rrq_s_id[3]; /* originator FID */ 465 __be16 rrq_ox_id; /* originator exchange ID */ 466 __be16 rrq_rx_id; /* responders exchange ID */ 467 }; 468 469 /* 470 * ELS_REC - Read exchange concise. 471 */ 472 struct fc_els_rec { 473 __u8 rec_cmd; /* command (0x13) */ 474 __u8 rec_zero[3]; /* specified as zero - part of cmd */ 475 __u8 rec_resvd; /* reserved */ 476 __u8 rec_s_id[3]; /* originator FID */ 477 __be16 rec_ox_id; /* originator exchange ID */ 478 __be16 rec_rx_id; /* responders exchange ID */ 479 }; 480 481 /* 482 * ELS_REC LS_ACC payload. 483 */ 484 struct fc_els_rec_acc { 485 __u8 reca_cmd; /* accept (0x02) */ 486 __u8 reca_zero[3]; /* specified as zero - part of cmd */ 487 __be16 reca_ox_id; /* originator exchange ID */ 488 __be16 reca_rx_id; /* responders exchange ID */ 489 __u8 reca_resvd1; /* reserved */ 490 __u8 reca_ofid[3]; /* originator FID */ 491 __u8 reca_resvd2; /* reserved */ 492 __u8 reca_rfid[3]; /* responder FID */ 493 __be32 reca_fc4value; /* FC4 value */ 494 __be32 reca_e_stat; /* ESB (exchange status block) status */ 495 }; 496 497 /* 498 * ELS_PRLI - Process login request and response. 499 */ 500 struct fc_els_prli { 501 __u8 prli_cmd; /* command */ 502 __u8 prli_spp_len; /* length of each serv. parm. page */ 503 __be16 prli_len; /* length of entire payload */ 504 /* service parameter pages follow */ 505 }; 506 507 /* 508 * ELS_PRLO - Process logout request and response. 509 */ 510 struct fc_els_prlo { 511 __u8 prlo_cmd; /* command */ 512 __u8 prlo_obs; /* obsolete, but shall be set to 10h */ 513 __be16 prlo_len; /* payload length */ 514 }; 515 516 /* 517 * ELS_ADISC payload 518 */ 519 struct fc_els_adisc { 520 __u8 adisc_cmd; 521 __u8 adisc_resv[3]; 522 __u8 adisc_resv1; 523 __u8 adisc_hard_addr[3]; 524 __be64 adisc_wwpn; 525 __be64 adisc_wwnn; 526 __u8 adisc_resv2; 527 __u8 adisc_port_id[3]; 528 } __attribute__((__packed__)); 529 530 /* 531 * ELS_LOGO - process or fabric logout. 532 */ 533 struct fc_els_logo { 534 __u8 fl_cmd; /* command code */ 535 __u8 fl_zero[3]; /* specified as zero - part of cmd */ 536 __u8 fl_resvd; /* reserved */ 537 __u8 fl_n_port_id[3];/* N port ID */ 538 __be64 fl_n_port_wwn; /* port name */ 539 }; 540 541 /* 542 * ELS_RTV - read timeout value. 543 */ 544 struct fc_els_rtv { 545 __u8 rtv_cmd; /* command code 0x0e */ 546 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 547 }; 548 549 /* 550 * LS_ACC for ELS_RTV - read timeout value. 551 */ 552 struct fc_els_rtv_acc { 553 __u8 rtv_cmd; /* command code 0x02 */ 554 __u8 rtv_zero[3]; /* specified as zero - part of cmd */ 555 __be32 rtv_r_a_tov; /* resource allocation timeout value */ 556 __be32 rtv_e_d_tov; /* error detection timeout value */ 557 __be32 rtv_toq; /* timeout qualifier (see below) */ 558 }; 559 560 /* 561 * rtv_toq bits. 562 */ 563 #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ 564 #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ 565 566 /* 567 * ELS_SCR - state change registration payload. 568 */ 569 struct fc_els_scr { 570 __u8 scr_cmd; /* command code */ 571 __u8 scr_resv[6]; /* reserved */ 572 __u8 scr_reg_func; /* registration function (see below) */ 573 }; 574 575 enum fc_els_scr_func { 576 ELS_SCRF_FAB = 1, /* fabric-detected registration */ 577 ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ 578 ELS_SCRF_FULL = 3, /* full registration */ 579 ELS_SCRF_CLEAR = 255, /* remove any current registrations */ 580 }; 581 582 /* 583 * ELS_RSCN - registered state change notification payload. 584 */ 585 struct fc_els_rscn { 586 __u8 rscn_cmd; /* RSCN opcode (0x61) */ 587 __u8 rscn_page_len; /* page length (4) */ 588 __be16 rscn_plen; /* payload length including this word */ 589 590 /* followed by 4-byte generic affected Port_ID pages */ 591 }; 592 593 struct fc_els_rscn_page { 594 __u8 rscn_page_flags; /* event and address format */ 595 __u8 rscn_fid[3]; /* fabric ID */ 596 }; 597 598 #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ 599 #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ 600 #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ 601 #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ 602 603 enum fc_els_rscn_ev_qual { 604 ELS_EV_QUAL_NONE = 0, /* unspecified */ 605 ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ 606 ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ 607 ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ 608 ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ 609 ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ 610 }; 611 612 enum fc_els_rscn_addr_fmt { 613 ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ 614 ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ 615 ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ 616 ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ 617 }; 618 619 /* 620 * ELS_RNID - request Node ID. 621 */ 622 struct fc_els_rnid { 623 __u8 rnid_cmd; /* RNID opcode (0x78) */ 624 __u8 rnid_resv[3]; /* reserved */ 625 __u8 rnid_fmt; /* data format */ 626 __u8 rnid_resv2[3]; /* reserved */ 627 }; 628 629 /* 630 * Node Identification Data formats (rnid_fmt) 631 */ 632 enum fc_els_rnid_fmt { 633 ELS_RNIDF_NONE = 0, /* no specific identification data */ 634 ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ 635 }; 636 637 /* 638 * ELS_RNID response. 639 */ 640 struct fc_els_rnid_resp { 641 __u8 rnid_cmd; /* response code (LS_ACC) */ 642 __u8 rnid_resv[3]; /* reserved */ 643 __u8 rnid_fmt; /* data format */ 644 __u8 rnid_cid_len; /* common ID data length */ 645 __u8 rnid_resv2; /* reserved */ 646 __u8 rnid_sid_len; /* specific ID data length */ 647 }; 648 649 struct fc_els_rnid_cid { 650 __be64 rnid_wwpn; /* N port name */ 651 __be64 rnid_wwnn; /* node name */ 652 }; 653 654 struct fc_els_rnid_gen { 655 __u8 rnid_vend_id[16]; /* vendor-unique ID */ 656 __be32 rnid_atype; /* associated type (see below) */ 657 __be32 rnid_phys_port; /* physical port number */ 658 __be32 rnid_att_nodes; /* number of attached nodes */ 659 __u8 rnid_node_mgmt; /* node management (see below) */ 660 __u8 rnid_ip_ver; /* IP version (see below) */ 661 __be16 rnid_prot_port; /* UDP / TCP port number */ 662 __be32 rnid_ip_addr[4]; /* IP address */ 663 __u8 rnid_resvd[2]; /* reserved */ 664 __be16 rnid_vend_spec; /* vendor-specific field */ 665 }; 666 667 enum fc_els_rnid_atype { 668 ELS_RNIDA_UNK = 0x01, /* unknown */ 669 ELS_RNIDA_OTHER = 0x02, /* none of the following */ 670 ELS_RNIDA_HUB = 0x03, 671 ELS_RNIDA_SWITCH = 0x04, 672 ELS_RNIDA_GATEWAY = 0x05, 673 ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ 674 ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ 675 ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ 676 ELS_RNIDA_STORAGE = 0x09, 677 ELS_RNIDA_HOST = 0x0a, 678 ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ 679 ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ 680 ELS_RNIDA_NAS = 0x11, /* NAS server */ 681 ELS_RNIDA_BRIDGE = 0x12, /* bridge */ 682 ELS_RNIDA_VIRT = 0x13, /* virtualization device */ 683 ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ 684 ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ 685 ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ 686 ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ 687 ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ 688 ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ 689 ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ 690 ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ 691 ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ 692 ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ 693 ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ 694 ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ 695 }; 696 697 enum fc_els_rnid_mgmt { 698 ELS_RNIDM_SNMP = 0, 699 ELS_RNIDM_TELNET = 1, 700 ELS_RNIDM_HTTP = 2, 701 ELS_RNIDM_HTTPS = 3, 702 ELS_RNIDM_XML = 4, /* HTTP + XML */ 703 }; 704 705 enum fc_els_rnid_ipver { 706 ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ 707 ELS_RNIDIP_V4 = 1, /* IPv4 */ 708 ELS_RNIDIP_V6 = 2, /* IPv6 */ 709 }; 710 711 /* 712 * ELS RPL - Read Port List. 713 */ 714 struct fc_els_rpl { 715 __u8 rpl_cmd; /* command */ 716 __u8 rpl_resv[5]; /* reserved - must be zero */ 717 __be16 rpl_max_size; /* maximum response size or zero */ 718 __u8 rpl_resv1; /* reserved - must be zero */ 719 __u8 rpl_index[3]; /* starting index */ 720 }; 721 722 /* 723 * Port number block in RPL response. 724 */ 725 struct fc_els_pnb { 726 __be32 pnb_phys_pn; /* physical port number */ 727 __u8 pnb_resv; /* reserved */ 728 __u8 pnb_port_id[3]; /* port ID */ 729 __be64 pnb_wwpn; /* port name */ 730 }; 731 732 /* 733 * RPL LS_ACC response. 734 */ 735 struct fc_els_rpl_resp { 736 __u8 rpl_cmd; /* ELS_LS_ACC */ 737 __u8 rpl_resv1; /* reserved - must be zero */ 738 __be16 rpl_plen; /* payload length */ 739 __u8 rpl_resv2; /* reserved - must be zero */ 740 __u8 rpl_llen[3]; /* list length */ 741 __u8 rpl_resv3; /* reserved - must be zero */ 742 __u8 rpl_index[3]; /* starting index */ 743 struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ 744 }; 745 746 /* 747 * Link Error Status Block. 748 */ 749 struct fc_els_lesb { 750 __be32 lesb_link_fail; /* link failure count */ 751 __be32 lesb_sync_loss; /* loss of synchronization count */ 752 __be32 lesb_sig_loss; /* loss of signal count */ 753 __be32 lesb_prim_err; /* primitive sequence error count */ 754 __be32 lesb_inv_word; /* invalid transmission word count */ 755 __be32 lesb_inv_crc; /* invalid CRC count */ 756 }; 757 758 /* 759 * ELS RPS - Read Port Status Block request. 760 */ 761 struct fc_els_rps { 762 __u8 rps_cmd; /* command */ 763 __u8 rps_resv[2]; /* reserved - must be zero */ 764 __u8 rps_flag; /* flag - see below */ 765 __be64 rps_port_spec; /* port selection */ 766 }; 767 768 enum fc_els_rps_flag { 769 FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ 770 FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ 771 FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ 772 }; 773 774 /* 775 * ELS RPS LS_ACC response. 776 */ 777 struct fc_els_rps_resp { 778 __u8 rps_cmd; /* command - LS_ACC */ 779 __u8 rps_resv[2]; /* reserved - must be zero */ 780 __u8 rps_flag; /* flag - see below */ 781 __u8 rps_resv2[2]; /* reserved */ 782 __be16 rps_status; /* port status - see below */ 783 struct fc_els_lesb rps_lesb; /* link error status block */ 784 }; 785 786 enum fc_els_rps_resp_flag { 787 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ 788 }; 789 790 enum fc_els_rps_resp_status { 791 FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ 792 FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ 793 FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ 794 FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ 795 FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ 796 FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ 797 }; 798 799 /* 800 * ELS LIRR - Link Incident Record Registration request. 801 */ 802 struct fc_els_lirr { 803 __u8 lirr_cmd; /* command */ 804 __u8 lirr_resv[3]; /* reserved - must be zero */ 805 __u8 lirr_func; /* registration function */ 806 __u8 lirr_fmt; /* FC-4 type of RLIR requested */ 807 __u8 lirr_resv2[2]; /* reserved - must be zero */ 808 }; 809 810 enum fc_els_lirr_func { 811 ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ 812 ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ 813 ELS_LIRR_CLEAR = 0xff /* clear registration */ 814 }; 815 816 /* 817 * ELS SRL - Scan Remote Loop request. 818 */ 819 struct fc_els_srl { 820 __u8 srl_cmd; /* command */ 821 __u8 srl_resv[3]; /* reserved - must be zero */ 822 __u8 srl_flag; /* flag - see below */ 823 __u8 srl_flag_param[3]; /* flag parameter */ 824 }; 825 826 enum fc_els_srl_flag { 827 FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ 828 FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ 829 FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ 830 FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ 831 }; 832 833 /* 834 * ELS RLS - Read Link Error Status Block request. 835 */ 836 struct fc_els_rls { 837 __u8 rls_cmd; /* command */ 838 __u8 rls_resv[4]; /* reserved - must be zero */ 839 __u8 rls_port_id[3]; /* port ID */ 840 }; 841 842 /* 843 * ELS RLS LS_ACC Response. 844 */ 845 struct fc_els_rls_resp { 846 __u8 rls_cmd; /* ELS_LS_ACC */ 847 __u8 rls_resv[3]; /* reserved - must be zero */ 848 struct fc_els_lesb rls_lesb; /* link error status block */ 849 }; 850 851 /* 852 * ELS RLIR - Registered Link Incident Report. 853 * This is followed by the CLIR and the CLID, described below. 854 */ 855 struct fc_els_rlir { 856 __u8 rlir_cmd; /* command */ 857 __u8 rlir_resv[3]; /* reserved - must be zero */ 858 __u8 rlir_fmt; /* format (FC4-type if type specific) */ 859 __u8 rlir_clr_len; /* common link incident record length */ 860 __u8 rlir_cld_len; /* common link incident desc. length */ 861 __u8 rlir_slr_len; /* spec. link incident record length */ 862 }; 863 864 /* 865 * CLIR - Common Link Incident Record Data. - Sent via RLIR. 866 */ 867 struct fc_els_clir { 868 __be64 clir_wwpn; /* incident port name */ 869 __be64 clir_wwnn; /* incident port node name */ 870 __u8 clir_port_type; /* incident port type */ 871 __u8 clir_port_id[3]; /* incident port ID */ 872 873 __be64 clir_conn_wwpn; /* connected port name */ 874 __be64 clir_conn_wwnn; /* connected node name */ 875 __be64 clir_fab_name; /* fabric name */ 876 __be32 clir_phys_port; /* physical port number */ 877 __be32 clir_trans_id; /* transaction ID */ 878 __u8 clir_resv[3]; /* reserved */ 879 __u8 clir_ts_fmt; /* time stamp format */ 880 __be64 clir_timestamp; /* time stamp */ 881 }; 882 883 /* 884 * CLIR clir_ts_fmt - time stamp format values. 885 */ 886 enum fc_els_clir_ts_fmt { 887 ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ 888 ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ 889 ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ 890 }; 891 892 /* 893 * Common Link Incident Descriptor - sent via RLIR. 894 */ 895 struct fc_els_clid { 896 __u8 clid_iq; /* incident qualifier flags */ 897 __u8 clid_ic; /* incident code */ 898 __be16 clid_epai; /* domain/area of ISL */ 899 }; 900 901 /* 902 * CLID incident qualifier flags. 903 */ 904 enum fc_els_clid_iq { 905 ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ 906 ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ 907 ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ 908 ELS_CLID_SEV_INFO = 0x00, /* report is informational */ 909 ELS_CLID_SEV_INOP = 0x08, /* link not operational */ 910 ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ 911 ELS_CLID_LASER = 0x02, /* subassembly is a laser */ 912 ELS_CLID_FRU = 0x01, /* format can identify a FRU */ 913 }; 914 915 /* 916 * CLID incident code. 917 */ 918 enum fc_els_clid_ic { 919 ELS_CLID_IC_IMPL = 1, /* implicit incident */ 920 ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ 921 ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ 922 ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ 923 ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ 924 ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ 925 ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ 926 ELS_CLID_IC_LIP = 8, /* receiving LIP */ 927 }; 928 929 /* 930 * Link Integrity event types 931 */ 932 enum fc_fpin_li_event_types { 933 FPIN_LI_UNKNOWN = 0x0, 934 FPIN_LI_LINK_FAILURE = 0x1, 935 FPIN_LI_LOSS_OF_SYNC = 0x2, 936 FPIN_LI_LOSS_OF_SIG = 0x3, 937 FPIN_LI_PRIM_SEQ_ERR = 0x4, 938 FPIN_LI_INVALID_TX_WD = 0x5, 939 FPIN_LI_INVALID_CRC = 0x6, 940 FPIN_LI_DEVICE_SPEC = 0xF, 941 }; 942 943 /* 944 * Initializer useful for decoding table. 945 * Please keep this in sync with the above definitions. 946 */ 947 #define FC_FPIN_LI_EVT_TYPES_INIT { \ 948 { FPIN_LI_UNKNOWN, "Unknown" }, \ 949 { FPIN_LI_LINK_FAILURE, "Link Failure" }, \ 950 { FPIN_LI_LOSS_OF_SYNC, "Loss of Synchronization" }, \ 951 { FPIN_LI_LOSS_OF_SIG, "Loss of Signal" }, \ 952 { FPIN_LI_PRIM_SEQ_ERR, "Primitive Sequence Protocol Error" }, \ 953 { FPIN_LI_INVALID_TX_WD, "Invalid Transmission Word" }, \ 954 { FPIN_LI_INVALID_CRC, "Invalid CRC" }, \ 955 { FPIN_LI_DEVICE_SPEC, "Device Specific" }, \ 956 } 957 958 /* 959 * Delivery event types 960 */ 961 enum fc_fpin_deli_event_types { 962 FPIN_DELI_UNKNOWN = 0x0, 963 FPIN_DELI_TIMEOUT = 0x1, 964 FPIN_DELI_UNABLE_TO_ROUTE = 0x2, 965 FPIN_DELI_DEVICE_SPEC = 0xF, 966 }; 967 968 /* 969 * Initializer useful for decoding table. 970 * Please keep this in sync with the above definitions. 971 */ 972 #define FC_FPIN_DELI_EVT_TYPES_INIT { \ 973 { FPIN_DELI_UNKNOWN, "Unknown" }, \ 974 { FPIN_DELI_TIMEOUT, "Timeout" }, \ 975 { FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \ 976 { FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \ 977 } 978 979 /* 980 * Congestion event types 981 */ 982 enum fc_fpin_congn_event_types { 983 FPIN_CONGN_CLEAR = 0x0, 984 FPIN_CONGN_LOST_CREDIT = 0x1, 985 FPIN_CONGN_CREDIT_STALL = 0x2, 986 FPIN_CONGN_OVERSUBSCRIPTION = 0x3, 987 FPIN_CONGN_DEVICE_SPEC = 0xF, 988 }; 989 990 /* 991 * Initializer useful for decoding table. 992 * Please keep this in sync with the above definitions. 993 */ 994 #define FC_FPIN_CONGN_EVT_TYPES_INIT { \ 995 { FPIN_CONGN_CLEAR, "Clear" }, \ 996 { FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \ 997 { FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \ 998 { FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \ 999 { FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \ 1000 } 1001 1002 enum fc_fpin_congn_severity_types { 1003 FPIN_CONGN_SEVERITY_WARNING = 0xF1, 1004 FPIN_CONGN_SEVERITY_ERROR = 0xF7, 1005 }; 1006 1007 /* 1008 * Link Integrity Notification Descriptor 1009 */ 1010 struct fc_fn_li_desc { 1011 __be32 desc_tag; /* Descriptor Tag (0x00020001) */ 1012 __be32 desc_len; /* Length of Descriptor (in bytes). 1013 * Size of descriptor excluding 1014 * desc_tag and desc_len fields. 1015 */ 1016 __be64 detecting_wwpn; /* Port Name that detected event */ 1017 __be64 attached_wwpn; /* Port Name of device attached to 1018 * detecting Port Name 1019 */ 1020 __be16 event_type; /* see enum fc_fpin_li_event_types */ 1021 __be16 event_modifier; /* Implementation specific value 1022 * describing the event type 1023 */ 1024 __be32 event_threshold;/* duration in ms of the link 1025 * integrity detection cycle 1026 */ 1027 __be32 event_count; /* minimum number of event 1028 * occurrences during the event 1029 * threshold to caause the LI event 1030 */ 1031 __be32 pname_count; /* number of portname_list elements */ 1032 __be64 pname_list[]; /* list of N_Port_Names accessible 1033 * through the attached port 1034 */ 1035 }; 1036 1037 /* 1038 * Delivery Notification Descriptor 1039 */ 1040 struct fc_fn_deli_desc { 1041 __be32 desc_tag; /* Descriptor Tag (0x00020002) */ 1042 __be32 desc_len; /* Length of Descriptor (in bytes). 1043 * Size of descriptor excluding 1044 * desc_tag and desc_len fields. 1045 */ 1046 __be64 detecting_wwpn; /* Port Name that detected event */ 1047 __be64 attached_wwpn; /* Port Name of device attached to 1048 * detecting Port Name 1049 */ 1050 __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */ 1051 }; 1052 1053 /* 1054 * Peer Congestion Notification Descriptor 1055 */ 1056 struct fc_fn_peer_congn_desc { 1057 __be32 desc_tag; /* Descriptor Tag (0x00020003) */ 1058 __be32 desc_len; /* Length of Descriptor (in bytes). 1059 * Size of descriptor excluding 1060 * desc_tag and desc_len fields. 1061 */ 1062 __be64 detecting_wwpn; /* Port Name that detected event */ 1063 __be64 attached_wwpn; /* Port Name of device attached to 1064 * detecting Port Name 1065 */ 1066 __be16 event_type; /* see enum fc_fpin_congn_event_types */ 1067 __be16 event_modifier; /* Implementation specific value 1068 * describing the event type 1069 */ 1070 __be32 event_period; /* duration (ms) of the detected 1071 * congestion event 1072 */ 1073 __be32 pname_count; /* number of portname_list elements */ 1074 __be64 pname_list[]; /* list of N_Port_Names accessible 1075 * through the attached port 1076 */ 1077 }; 1078 1079 /* 1080 * Congestion Notification Descriptor 1081 */ 1082 struct fc_fn_congn_desc { 1083 __be32 desc_tag; /* Descriptor Tag (0x00020004) */ 1084 __be32 desc_len; /* Length of Descriptor (in bytes). 1085 * Size of descriptor excluding 1086 * desc_tag and desc_len fields. 1087 */ 1088 __be16 event_type; /* see enum fc_fpin_congn_event_types */ 1089 __be16 event_modifier; /* Implementation specific value 1090 * describing the event type 1091 */ 1092 __be32 event_period; /* duration (ms) of the detected 1093 * congestion event 1094 */ 1095 __u8 severity; /* command */ 1096 __u8 resv[3]; /* reserved - must be zero */ 1097 }; 1098 1099 /* 1100 * ELS_FPIN - Fabric Performance Impact Notification 1101 */ 1102 struct fc_els_fpin { 1103 __u8 fpin_cmd; /* command (0x16) */ 1104 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 1105 __be32 desc_len; /* Length of Descriptor List (in bytes). 1106 * Size of ELS excluding fpin_cmd, 1107 * fpin_zero and desc_len fields. 1108 */ 1109 struct fc_tlv_desc fpin_desc[]; /* Descriptor list */ 1110 }; 1111 1112 /* Diagnostic Function Descriptor - FPIN Registration */ 1113 struct fc_df_desc_fpin_reg { 1114 /* New members MUST be added within the __struct_group() macro below. */ 1115 __struct_group(fc_df_desc_fpin_reg_hdr, __hdr, /* no attrs */, 1116 __be32 desc_tag; /* FPIN Registration (0x00030001) */ 1117 __be32 desc_len; /* Length of Descriptor (in bytes). 1118 * Size of descriptor excluding 1119 * desc_tag and desc_len fields. 1120 */ 1121 __be32 count; /* Number of desc_tags elements */ 1122 ); 1123 __be32 desc_tags[]; /* Array of Descriptor Tags. 1124 * Each tag indicates a function 1125 * supported by the N_Port (request) 1126 * or by the N_Port and Fabric 1127 * Controller (reply; may be a subset 1128 * of the request). 1129 * See ELS_FN_DTAG_xxx for tag values. 1130 */ 1131 }; 1132 _Static_assert(offsetof(struct fc_df_desc_fpin_reg, desc_tags) == sizeof(struct fc_df_desc_fpin_reg_hdr), 1133 "struct member likely outside of __struct_group()"); 1134 1135 /* 1136 * ELS_RDF - Register Diagnostic Functions 1137 */ 1138 struct fc_els_rdf { 1139 /* New members MUST be added within the __struct_group() macro below. */ 1140 __struct_group(fc_els_rdf_hdr, __hdr, /* no attrs */, 1141 __u8 fpin_cmd; /* command (0x19) */ 1142 __u8 fpin_zero[3]; /* specified as zero - part of cmd */ 1143 __be32 desc_len; /* Length of Descriptor List (in bytes). 1144 * Size of ELS excluding fpin_cmd, 1145 * fpin_zero and desc_len fields. 1146 */ 1147 ); 1148 struct fc_tlv_desc desc[]; /* Descriptor list */ 1149 }; 1150 _Static_assert(offsetof(struct fc_els_rdf, desc) == sizeof(struct fc_els_rdf_hdr), 1151 "struct member likely outside of __struct_group()"); 1152 1153 /* 1154 * ELS RDF LS_ACC Response. 1155 */ 1156 struct fc_els_rdf_resp { 1157 /* New members MUST be added within the __struct_group() macro below. */ 1158 __struct_group(fc_els_rdf_resp_hdr, __hdr, /* no attrs */, 1159 struct fc_els_ls_acc acc_hdr; 1160 __be32 desc_list_len; /* Length of response (in 1161 * bytes). Excludes acc_hdr 1162 * and desc_list_len fields. 1163 */ 1164 struct fc_els_lsri_desc lsri; 1165 ); 1166 struct fc_tlv_desc desc[]; /* Supported Descriptor list */ 1167 }; 1168 _Static_assert(offsetof(struct fc_els_rdf_resp, desc) == sizeof(struct fc_els_rdf_resp_hdr), 1169 "struct member likely outside of __struct_group()"); 1170 1171 /* 1172 * Diagnostic Capability Descriptors for EDC ELS 1173 */ 1174 1175 /* 1176 * Diagnostic: Link Fault Capability Descriptor 1177 */ 1178 struct fc_diag_lnkflt_desc { 1179 __be32 desc_tag; /* Descriptor Tag (0x0001000D) */ 1180 __be32 desc_len; /* Length of Descriptor (in bytes). 1181 * Size of descriptor excluding 1182 * desc_tag and desc_len fields. 1183 * 12 bytes 1184 */ 1185 __be32 degrade_activate_threshold; 1186 __be32 degrade_deactivate_threshold; 1187 __be32 fec_degrade_interval; 1188 }; 1189 1190 enum fc_edc_cg_signal_cap_types { 1191 /* Note: Capability: bits 31:4 Rsvd; bits 3:0 are capabilities */ 1192 EDC_CG_SIG_NOTSUPPORTED = 0x00, /* neither supported */ 1193 EDC_CG_SIG_WARN_ONLY = 0x01, 1194 EDC_CG_SIG_WARN_ALARM = 0x02, /* both supported */ 1195 }; 1196 1197 /* 1198 * Initializer useful for decoding table. 1199 * Please keep this in sync with the above definitions. 1200 */ 1201 #define FC_EDC_CG_SIGNAL_CAP_TYPES_INIT { \ 1202 { EDC_CG_SIG_NOTSUPPORTED, "Signaling Not Supported" }, \ 1203 { EDC_CG_SIG_WARN_ONLY, "Warning Signal" }, \ 1204 { EDC_CG_SIG_WARN_ALARM, "Warning and Alarm Signals" }, \ 1205 } 1206 1207 enum fc_diag_cg_sig_freq_types { 1208 EDC_CG_SIGFREQ_CNT_MIN = 1, /* Min Frequency Count */ 1209 EDC_CG_SIGFREQ_CNT_MAX = 999, /* Max Frequency Count */ 1210 1211 EDC_CG_SIGFREQ_SEC = 0x1, /* Units: seconds */ 1212 EDC_CG_SIGFREQ_MSEC = 0x2, /* Units: milliseconds */ 1213 }; 1214 1215 struct fc_diag_cg_sig_freq { 1216 __be16 count; /* Time between signals 1217 * note: upper 6 bits rsvd 1218 */ 1219 __be16 units; /* Time unit for count 1220 * note: upper 12 bits rsvd 1221 */ 1222 }; 1223 1224 /* 1225 * Diagnostic: Congestion Signaling Capability Descriptor 1226 */ 1227 struct fc_diag_cg_sig_desc { 1228 __be32 desc_tag; /* Descriptor Tag (0x0001000F) */ 1229 __be32 desc_len; /* Length of Descriptor (in bytes). 1230 * Size of descriptor excluding 1231 * desc_tag and desc_len fields. 1232 * 16 bytes 1233 */ 1234 __be32 xmt_signal_capability; 1235 struct fc_diag_cg_sig_freq xmt_signal_frequency; 1236 __be32 rcv_signal_capability; 1237 struct fc_diag_cg_sig_freq rcv_signal_frequency; 1238 }; 1239 1240 /* 1241 * ELS_EDC - Exchange Diagnostic Capabilities 1242 */ 1243 struct fc_els_edc { 1244 __u8 edc_cmd; /* command (0x17) */ 1245 __u8 edc_zero[3]; /* specified as zero - part of cmd */ 1246 __be32 desc_len; /* Length of Descriptor List (in bytes). 1247 * Size of ELS excluding edc_cmd, 1248 * edc_zero and desc_len fields. 1249 */ 1250 struct fc_tlv_desc desc[]; 1251 /* Diagnostic Descriptor list */ 1252 }; 1253 1254 /* 1255 * ELS EDC LS_ACC Response. 1256 */ 1257 struct fc_els_edc_resp { 1258 struct fc_els_ls_acc acc_hdr; 1259 __be32 desc_list_len; /* Length of response (in 1260 * bytes). Excludes acc_hdr 1261 * and desc_list_len fields. 1262 */ 1263 struct fc_els_lsri_desc lsri; 1264 struct fc_tlv_desc desc[]; 1265 /* Supported Diagnostic Descriptor list */ 1266 }; 1267 1268 1269 #endif /* _FC_ELS_H_ */
