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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.org6 */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 payload21 */22enum 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 */163struct 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 */171struct 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 */182enum 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 */199enum 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 Values219 */220enum 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 format257 *258 * This structure, as it defines no payload, will also be referred to259 * as the "tlv header" - which contains the tag and len fields.260 */261struct fc_tlv_desc {262 __be32 desc_tag; /* Notification Descriptor Tag */263 __be32 desc_len; /* Length of Descriptor (in bytes).264 * Size of descriptor excluding265 * 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 header271 * for a descriptor272 */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 a289 * tag and len field, calculate the address of the next descriptor based290 * on the len field.291 */292static 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 Descriptor302 */303struct 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 excluding307 * 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 */319struct 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_seq337#define sp_rel_off sp_u.sp_plogi._sp_rel_off338#define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov339 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_PAYLOAD346#define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD347 348/*349 * sp_features350 */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 */374struct 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 */410struct 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 */423struct 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 */444enum 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 Qualifier457 */458struct 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 */470struct 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 */482struct 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 */498struct 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 */508struct 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 payload516 */517struct 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 */531struct 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 */542struct 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 */550struct 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 */567struct 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 573enum 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 */583struct 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 591struct 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 601enum 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 610enum 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 */620struct 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 */630enum 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 */638struct 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 647struct fc_els_rnid_cid {648 __be64 rnid_wwpn; /* N port name */649 __be64 rnid_wwnn; /* node name */650};651 652struct 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 665enum 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 695enum 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 703enum 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 */712struct 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 */723struct 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 */733struct 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 */747struct 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 */759struct 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 766enum 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 */775struct 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 784enum fc_els_rps_resp_flag {785 FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */786};787 788enum 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 */800struct 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 808enum 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 */817struct 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 824enum 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 */834struct 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 */843struct 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 */853struct 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 */865struct 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 */884enum 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 */893struct 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 */902enum 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 */916enum 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 types929 */930enum 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 types958 */959enum 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 types979 */980enum 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 1000enum fc_fpin_congn_severity_types {1001 FPIN_CONGN_SEVERITY_WARNING = 0xF1,1002 FPIN_CONGN_SEVERITY_ERROR = 0xF7,1003};1004 1005/*1006 * Link Integrity Notification Descriptor1007 */1008struct fc_fn_li_desc {1009 __be32 desc_tag; /* Descriptor Tag (0x00020001) */1010 __be32 desc_len; /* Length of Descriptor (in bytes).1011 * Size of descriptor excluding1012 * 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 to1016 * detecting Port Name1017 */1018 __be16 event_type; /* see enum fc_fpin_li_event_types */1019 __be16 event_modifier; /* Implementation specific value1020 * describing the event type1021 */1022 __be32 event_threshold;/* duration in ms of the link1023 * integrity detection cycle1024 */1025 __be32 event_count; /* minimum number of event1026 * occurrences during the event1027 * threshold to caause the LI event1028 */1029 __be32 pname_count; /* number of portname_list elements */1030 __be64 pname_list[]; /* list of N_Port_Names accessible1031 * through the attached port1032 */1033};1034 1035/*1036 * Delivery Notification Descriptor1037 */1038struct fc_fn_deli_desc {1039 __be32 desc_tag; /* Descriptor Tag (0x00020002) */1040 __be32 desc_len; /* Length of Descriptor (in bytes).1041 * Size of descriptor excluding1042 * 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 to1046 * detecting Port Name1047 */1048 __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */1049};1050 1051/*1052 * Peer Congestion Notification Descriptor1053 */1054struct 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 excluding1058 * 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 to1062 * detecting Port Name1063 */1064 __be16 event_type; /* see enum fc_fpin_congn_event_types */1065 __be16 event_modifier; /* Implementation specific value1066 * describing the event type1067 */1068 __be32 event_period; /* duration (ms) of the detected1069 * congestion event1070 */1071 __be32 pname_count; /* number of portname_list elements */1072 __be64 pname_list[]; /* list of N_Port_Names accessible1073 * through the attached port1074 */1075};1076 1077/*1078 * Congestion Notification Descriptor1079 */1080struct fc_fn_congn_desc {1081 __be32 desc_tag; /* Descriptor Tag (0x00020004) */1082 __be32 desc_len; /* Length of Descriptor (in bytes).1083 * Size of descriptor excluding1084 * desc_tag and desc_len fields.1085 */1086 __be16 event_type; /* see enum fc_fpin_congn_event_types */1087 __be16 event_modifier; /* Implementation specific value1088 * describing the event type1089 */1090 __be32 event_period; /* duration (ms) of the detected1091 * congestion event1092 */1093 __u8 severity; /* command */1094 __u8 resv[3]; /* reserved - must be zero */1095};1096 1097/*1098 * ELS_FPIN - Fabric Performance Impact Notification1099 */1100struct 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 */1111struct 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 excluding1115 * 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 function1120 * supported by the N_Port (request)1121 * or by the N_Port and Fabric1122 * Controller (reply; may be a subset1123 * of the request).1124 * See ELS_FN_DTAG_xxx for tag values.1125 */1126};1127 1128/*1129 * ELS_RDF - Register Diagnostic Functions1130 */1131struct 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 */1144struct fc_els_rdf_resp {1145 struct fc_els_ls_acc acc_hdr;1146 __be32 desc_list_len; /* Length of response (in1147 * bytes). Excludes acc_hdr1148 * 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 ELS1157 */1158 1159/*1160 * Diagnostic: Link Fault Capability Descriptor1161 */1162struct fc_diag_lnkflt_desc {1163 __be32 desc_tag; /* Descriptor Tag (0x0001000D) */1164 __be32 desc_len; /* Length of Descriptor (in bytes).1165 * Size of descriptor excluding1166 * desc_tag and desc_len fields.1167 * 12 bytes1168 */1169 __be32 degrade_activate_threshold;1170 __be32 degrade_deactivate_threshold;1171 __be32 fec_degrade_interval;1172};1173 1174enum 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 1191enum 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 1199struct fc_diag_cg_sig_freq {1200 __be16 count; /* Time between signals1201 * note: upper 6 bits rsvd1202 */1203 __be16 units; /* Time unit for count1204 * note: upper 12 bits rsvd1205 */1206};1207 1208/*1209 * Diagnostic: Congestion Signaling Capability Descriptor1210 */1211struct 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 excluding1215 * desc_tag and desc_len fields.1216 * 16 bytes1217 */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 Capabilities1226 */1227struct 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 */1241struct fc_els_edc_resp {1242 struct fc_els_ls_acc acc_hdr;1243 __be32 desc_list_len; /* Length of response (in1244 * bytes). Excludes acc_hdr1245 * 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