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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright(c) 2007 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * * Maintained at www.Open-FCoE.org */ #ifndef _FC_ELS_H_ #define _FC_ELS_H_ #include <linux/types.h> #include <asm/byteorder.h> /* * Fibre Channel Switch - Enhanced Link Services definitions. * From T11 FC-LS Rev 1.2 June 7, 2005. */ /* * ELS Command codes - byte 0 of the frame payload */ enum fc_els_cmd { ELS_LS_RJT = 0x01, /* ESL reject */ ELS_LS_ACC = 0x02, /* ESL Accept */ ELS_PLOGI = 0x03, /* N_Port login */ ELS_FLOGI = 0x04, /* F_Port login */ ELS_LOGO = 0x05, /* Logout */ ELS_ABTX = 0x06, /* Abort exchange - obsolete */ ELS_RCS = 0x07, /* read connection status */ ELS_RES = 0x08, /* read exchange status block */ ELS_RSS = 0x09, /* read sequence status block */ ELS_RSI = 0x0a, /* read sequence initiative */ ELS_ESTS = 0x0b, /* establish streaming */ ELS_ESTC = 0x0c, /* estimate credit */ ELS_ADVC = 0x0d, /* advise credit */ ELS_RTV = 0x0e, /* read timeout value */ ELS_RLS = 0x0f, /* read link error status block */ ELS_ECHO = 0x10, /* echo */ ELS_TEST = 0x11, /* test */ ELS_RRQ = 0x12, /* reinstate recovery qualifier */ ELS_REC = 0x13, /* read exchange concise */ ELS_SRR = 0x14, /* sequence retransmission request */ ELS_FPIN = 0x16, /* Fabric Performance Impact Notification */ ELS_EDC = 0x17, /* Exchange Diagnostic Capabilities */ ELS_RDP = 0x18, /* Read Diagnostic Parameters */ ELS_RDF = 0x19, /* Register Diagnostic Functions */ ELS_PRLI = 0x20, /* process login */ ELS_PRLO = 0x21, /* process logout */ ELS_SCN = 0x22, /* state change notification */ ELS_TPLS = 0x23, /* test process login state */ ELS_TPRLO = 0x24, /* third party process logout */ ELS_LCLM = 0x25, /* login control list mgmt (obs) */ ELS_GAID = 0x30, /* get alias_ID */ ELS_FACT = 0x31, /* fabric activate alias_id */ ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ ELS_NACT = 0x33, /* N-port activate alias_id */ ELS_NDACT = 0x34, /* N-port deactivate alias_id */ ELS_QOSR = 0x40, /* quality of service request */ ELS_RVCS = 0x41, /* read virtual circuit status */ ELS_PDISC = 0x50, /* discover N_port service params */ ELS_FDISC = 0x51, /* discover F_port service params */ ELS_ADISC = 0x52, /* discover address */ ELS_RNC = 0x53, /* report node cap (obs) */ ELS_FARP_REQ = 0x54, /* FC ARP request */ ELS_FARP_REPL = 0x55, /* FC ARP reply */ ELS_RPS = 0x56, /* read port status block */ ELS_RPL = 0x57, /* read port list */ ELS_RPBC = 0x58, /* read port buffer condition */ ELS_FAN = 0x60, /* fabric address notification */ ELS_RSCN = 0x61, /* registered state change notification */ ELS_SCR = 0x62, /* state change registration */ ELS_RNFT = 0x63, /* report node FC-4 types */ ELS_CSR = 0x68, /* clock synch. request */ ELS_CSU = 0x69, /* clock synch. update */ ELS_LINIT = 0x70, /* loop initialize */ ELS_LSTS = 0x72, /* loop status */ ELS_RNID = 0x78, /* request node ID data */ ELS_RLIR = 0x79, /* registered link incident report */ ELS_LIRR = 0x7a, /* link incident record registration */ ELS_SRL = 0x7b, /* scan remote loop */ ELS_SBRP = 0x7c, /* set bit-error reporting params */ ELS_RPSC = 0x7d, /* report speed capabilities */ ELS_QSA = 0x7e, /* query security attributes */ ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ ELS_LKA = 0x80, /* link keep-alive */ ELS_AUTH_ELS = 0x90, /* authentication ELS */ }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_ELS_CMDS_INIT { \ [ELS_LS_RJT] = "LS_RJT", \ [ELS_LS_ACC] = "LS_ACC", \ [ELS_PLOGI] = "PLOGI", \ [ELS_FLOGI] = "FLOGI", \ [ELS_LOGO] = "LOGO", \ [ELS_ABTX] = "ABTX", \ [ELS_RCS] = "RCS", \ [ELS_RES] = "RES", \ [ELS_RSS] = "RSS", \ [ELS_RSI] = "RSI", \ [ELS_ESTS] = "ESTS", \ [ELS_ESTC] = "ESTC", \ [ELS_ADVC] = "ADVC", \ [ELS_RTV] = "RTV", \ [ELS_RLS] = "RLS", \ [ELS_ECHO] = "ECHO", \ [ELS_TEST] = "TEST", \ [ELS_RRQ] = "RRQ", \ [ELS_REC] = "REC", \ [ELS_SRR] = "SRR", \ [ELS_FPIN] = "FPIN", \ [ELS_EDC] = "EDC", \ [ELS_RDP] = "RDP", \ [ELS_RDF] = "RDF", \ [ELS_PRLI] = "PRLI", \ [ELS_PRLO] = "PRLO", \ [ELS_SCN] = "SCN", \ [ELS_TPLS] = "TPLS", \ [ELS_TPRLO] = "TPRLO", \ [ELS_LCLM] = "LCLM", \ [ELS_GAID] = "GAID", \ [ELS_FACT] = "FACT", \ [ELS_FDACDT] = "FDACDT", \ [ELS_NACT] = "NACT", \ [ELS_NDACT] = "NDACT", \ [ELS_QOSR] = "QOSR", \ [ELS_RVCS] = "RVCS", \ [ELS_PDISC] = "PDISC", \ [ELS_FDISC] = "FDISC", \ [ELS_ADISC] = "ADISC", \ [ELS_RNC] = "RNC", \ [ELS_FARP_REQ] = "FARP_REQ", \ [ELS_FARP_REPL] = "FARP_REPL", \ [ELS_RPS] = "RPS", \ [ELS_RPL] = "RPL", \ [ELS_RPBC] = "RPBC", \ [ELS_FAN] = "FAN", \ [ELS_RSCN] = "RSCN", \ [ELS_SCR] = "SCR", \ [ELS_RNFT] = "RNFT", \ [ELS_CSR] = "CSR", \ [ELS_CSU] = "CSU", \ [ELS_LINIT] = "LINIT", \ [ELS_LSTS] = "LSTS", \ [ELS_RNID] = "RNID", \ [ELS_RLIR] = "RLIR", \ [ELS_LIRR] = "LIRR", \ [ELS_SRL] = "SRL", \ [ELS_SBRP] = "SBRP", \ [ELS_RPSC] = "RPSC", \ [ELS_QSA] = "QSA", \ [ELS_EVFP] = "EVFP", \ [ELS_LKA] = "LKA", \ [ELS_AUTH_ELS] = "AUTH_ELS", \ } /* * LS_ACC payload. */ struct fc_els_ls_acc { __u8 la_cmd; /* command code ELS_LS_ACC */ __u8 la_resv[3]; /* reserved */ }; /* * ELS reject payload. */ struct fc_els_ls_rjt { __u8 er_cmd; /* command code ELS_LS_RJT */ __u8 er_resv[4]; /* reserved must be zero */ __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ __u8 er_vendor; /* vendor specific code */ }; /* * ELS reject reason codes (er_reason). */ enum fc_els_rjt_reason { ELS_RJT_NONE = 0, /* no reject - not to be sent */ ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ ELS_RJT_LOGIC = 0x03, /* logical error */ ELS_RJT_BUSY = 0x05, /* logical busy */ ELS_RJT_PROT = 0x07, /* protocol error */ ELS_RJT_UNAB = 0x09, /* unable to perform command request */ ELS_RJT_UNSUP = 0x0b, /* command not supported */ ELS_RJT_INPROG = 0x0e, /* command already in progress */ ELS_RJT_FIP = 0x20, /* FIP error */ ELS_RJT_VENDOR = 0xff, /* vendor specific error */ }; /* * reason code explanation (er_explan). */ enum fc_els_rjt_explan { ELS_EXPL_NONE = 0x00, /* No additional explanation */ ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ ELS_EXPL_AH = 0x11, /* invalid association header */ ELS_EXPL_AH_REQ = 0x13, /* association_header required */ ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ ELS_EXPL_INPROG = 0x19, /* Request already in progress */ ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ ELS_EXPL_NOT_NEIGHBOR = 0x62, /* VN2VN_Port not in neighbor set */ /* TBD - above definitions incomplete */ }; /* * Link Service TLV Descriptor Tag Values */ enum fc_ls_tlv_dtag { ELS_DTAG_LS_REQ_INFO = 0x00000001, /* Link Service Request Information Descriptor */ ELS_DTAG_LNK_FAULT_CAP = 0x0001000D, /* Link Fault Capability Descriptor */ ELS_DTAG_CG_SIGNAL_CAP = 0x0001000F, /* Congestion Signaling Capability Descriptor */ ELS_DTAG_LNK_INTEGRITY = 0x00020001, /* Link Integrity Notification Descriptor */ ELS_DTAG_DELIVERY = 0x00020002, /* Delivery Notification Descriptor */ ELS_DTAG_PEER_CONGEST = 0x00020003, /* Peer Congestion Notification Descriptor */ ELS_DTAG_CONGESTION = 0x00020004, /* Congestion Notification Descriptor */ ELS_DTAG_FPIN_REGISTER = 0x00030001, /* FPIN Registration Descriptor */ }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_LS_TLV_DTAG_INIT { \ { ELS_DTAG_LS_REQ_INFO, "Link Service Request Information" }, \ { ELS_DTAG_LNK_FAULT_CAP, "Link Fault Capability" }, \ { ELS_DTAG_CG_SIGNAL_CAP, "Congestion Signaling Capability" }, \ { ELS_DTAG_LNK_INTEGRITY, "Link Integrity Notification" }, \ { ELS_DTAG_DELIVERY, "Delivery Notification Present" }, \ { ELS_DTAG_PEER_CONGEST, "Peer Congestion Notification" }, \ { ELS_DTAG_CONGESTION, "Congestion Notification" }, \ { ELS_DTAG_FPIN_REGISTER, "FPIN Registration" }, \ } /* * Generic Link Service TLV Descriptor format * * This structure, as it defines no payload, will also be referred to * as the "tlv header" - which contains the tag and len fields. */ struct fc_tlv_desc { __be32 desc_tag; /* Notification Descriptor Tag */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __u8 desc_value[0]; /* Descriptor Value */ }; /* Descriptor tag and len fields are considered the mandatory header * for a descriptor */ #define FC_TLV_DESC_HDR_SZ sizeof(struct fc_tlv_desc) /* * Macro, used when initializing payloads, to return the descriptor length. * Length is size of descriptor minus the tag and len fields. */ #define FC_TLV_DESC_LENGTH_FROM_SZ(desc) \ (sizeof(desc) - FC_TLV_DESC_HDR_SZ) /* Macro, used on received payloads, to return the descriptor length */ #define FC_TLV_DESC_SZ_FROM_LENGTH(tlv) \ (__be32_to_cpu((tlv)->desc_len) + FC_TLV_DESC_HDR_SZ) /* * This helper is used to walk descriptors in a descriptor list. * Given the address of the current descriptor, which minimally contains a * tag and len field, calculate the address of the next descriptor based * on the len field. */ static __inline__ void *fc_tlv_next_desc(void *desc) { struct fc_tlv_desc *tlv = desc; return (desc + FC_TLV_DESC_SZ_FROM_LENGTH(tlv)); } /* * Link Service Request Information Descriptor */ struct fc_els_lsri_desc { __be32 desc_tag; /* descriptor tag (0x0000 0001) */ __be32 desc_len; /* Length of Descriptor (in bytes) (4). * Size of descriptor excluding * desc_tag and desc_len fields. */ struct { __u8 cmd; /* ELS cmd byte */ __u8 bytes[3]; /* bytes 1..3 */ } rqst_w0; /* Request word 0 */ }; /* * Common service parameters (N ports). */ struct fc_els_csp { __u8 sp_hi_ver; /* highest version supported (obs.) */ __u8 sp_lo_ver; /* highest version supported (obs.) */ __be16 sp_bb_cred; /* buffer-to-buffer credits */ __be16 sp_features; /* common feature flags */ __be16 sp_bb_data; /* b-b state number and data field sz */ union { struct { __be16 _sp_tot_seq; /* total concurrent sequences */ __be16 _sp_rel_off; /* rel. offset by info cat */ } sp_plogi; struct { __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ } sp_flogi_acc; } sp_u; __be32 sp_e_d_tov; /* error detect timeout value */ }; #define sp_tot_seq sp_u.sp_plogi._sp_tot_seq #define sp_rel_off sp_u.sp_plogi._sp_rel_off #define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov #define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ /* * Minimum and maximum values for max data field size in service parameters. */ #define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD #define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD /* * sp_features */ #define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ #define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ #define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ #define FC_SP_FT_RAND 0x4000 /* random relative offset */ #define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ #define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ #define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ #define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ #define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ #define FC_SP_FT_MCAST 0x0200 /* multicast */ #define FC_SP_FT_BCAST 0x0100 /* broadcast */ #define FC_SP_FT_HUNT 0x0080 /* hunt group */ #define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ #define FC_SP_FT_SEC 0x0020 /* reserved for security */ #define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ #define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ #define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ #define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ #define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ /* * Class-specific service parameters. */ struct fc_els_cssp { __be16 cp_class; /* class flags */ __be16 cp_init; /* initiator flags */ __be16 cp_recip; /* recipient flags */ __be16 cp_rdfs; /* receive data field size */ __be16 cp_con_seq; /* concurrent sequences */ __be16 cp_ee_cred; /* N-port end-to-end credit */ __u8 cp_resv1; /* reserved */ __u8 cp_open_seq; /* open sequences per exchange */ __u8 _cp_resv2[2]; /* reserved */ }; /* * cp_class flags. */ #define FC_CPC_VALID 0x8000 /* class valid */ #define FC_CPC_IMIX 0x4000 /* intermix mode */ #define FC_CPC_SEQ 0x0800 /* sequential delivery */ #define FC_CPC_CAMP 0x0200 /* camp-on */ #define FC_CPC_PRI 0x0080 /* priority */ /* * cp_init flags. * (TBD: not all flags defined here). */ #define FC_CPI_CSYN 0x0010 /* clock synch. capable */ /* * cp_recip flags. */ #define FC_CPR_CSYN 0x0008 /* clock synch. capable */ /* * NFC_ELS_FLOGI: Fabric login request. * NFC_ELS_PLOGI: Port login request (same format). */ struct fc_els_flogi { __u8 fl_cmd; /* command */ __u8 _fl_resvd[3]; /* must be zero */ struct fc_els_csp fl_csp; /* common service parameters */ __be64 fl_wwpn; /* port name */ __be64 fl_wwnn; /* node name */ struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ __u8 fl_vend[16]; /* vendor version level */ } __attribute__((__packed__)); /* * Process login service parameter page. */ struct fc_els_spp { __u8 spp_type; /* type code or common service params */ __u8 spp_type_ext; /* type code extension */ __u8 spp_flags; __u8 _spp_resvd; __be32 spp_orig_pa; /* originator process associator */ __be32 spp_resp_pa; /* responder process associator */ __be32 spp_params; /* service parameters */ }; /* * spp_flags. */ #define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ #define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ #define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ #define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ /* * SPP response code in spp_flags - lower 4 bits. */ enum fc_els_spp_resp { FC_SPP_RESP_ACK = 1, /* request executed */ FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ FC_SPP_RESP_INIT = 3, /* initialization not complete */ FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ FC_SPP_RESP_COND = 6, /* request completed conditionally */ FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ FC_SPP_RESP_INVL = 8, /* SPP is invalid */ }; /* * ELS_RRQ - Reinstate Recovery Qualifier */ struct fc_els_rrq { __u8 rrq_cmd; /* command (0x12) */ __u8 rrq_zero[3]; /* specified as zero - part of cmd */ __u8 rrq_resvd; /* reserved */ __u8 rrq_s_id[3]; /* originator FID */ __be16 rrq_ox_id; /* originator exchange ID */ __be16 rrq_rx_id; /* responders exchange ID */ }; /* * ELS_REC - Read exchange concise. */ struct fc_els_rec { __u8 rec_cmd; /* command (0x13) */ __u8 rec_zero[3]; /* specified as zero - part of cmd */ __u8 rec_resvd; /* reserved */ __u8 rec_s_id[3]; /* originator FID */ __be16 rec_ox_id; /* originator exchange ID */ __be16 rec_rx_id; /* responders exchange ID */ }; /* * ELS_REC LS_ACC payload. */ struct fc_els_rec_acc { __u8 reca_cmd; /* accept (0x02) */ __u8 reca_zero[3]; /* specified as zero - part of cmd */ __be16 reca_ox_id; /* originator exchange ID */ __be16 reca_rx_id; /* responders exchange ID */ __u8 reca_resvd1; /* reserved */ __u8 reca_ofid[3]; /* originator FID */ __u8 reca_resvd2; /* reserved */ __u8 reca_rfid[3]; /* responder FID */ __be32 reca_fc4value; /* FC4 value */ __be32 reca_e_stat; /* ESB (exchange status block) status */ }; /* * ELS_PRLI - Process login request and response. */ struct fc_els_prli { __u8 prli_cmd; /* command */ __u8 prli_spp_len; /* length of each serv. parm. page */ __be16 prli_len; /* length of entire payload */ /* service parameter pages follow */ }; /* * ELS_PRLO - Process logout request and response. */ struct fc_els_prlo { __u8 prlo_cmd; /* command */ __u8 prlo_obs; /* obsolete, but shall be set to 10h */ __be16 prlo_len; /* payload length */ }; /* * ELS_ADISC payload */ struct fc_els_adisc { __u8 adisc_cmd; __u8 adisc_resv[3]; __u8 adisc_resv1; __u8 adisc_hard_addr[3]; __be64 adisc_wwpn; __be64 adisc_wwnn; __u8 adisc_resv2; __u8 adisc_port_id[3]; } __attribute__((__packed__)); /* * ELS_LOGO - process or fabric logout. */ struct fc_els_logo { __u8 fl_cmd; /* command code */ __u8 fl_zero[3]; /* specified as zero - part of cmd */ __u8 fl_resvd; /* reserved */ __u8 fl_n_port_id[3];/* N port ID */ __be64 fl_n_port_wwn; /* port name */ }; /* * ELS_RTV - read timeout value. */ struct fc_els_rtv { __u8 rtv_cmd; /* command code 0x0e */ __u8 rtv_zero[3]; /* specified as zero - part of cmd */ }; /* * LS_ACC for ELS_RTV - read timeout value. */ struct fc_els_rtv_acc { __u8 rtv_cmd; /* command code 0x02 */ __u8 rtv_zero[3]; /* specified as zero - part of cmd */ __be32 rtv_r_a_tov; /* resource allocation timeout value */ __be32 rtv_e_d_tov; /* error detection timeout value */ __be32 rtv_toq; /* timeout qualifier (see below) */ }; /* * rtv_toq bits. */ #define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ #define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ /* * ELS_SCR - state change registration payload. */ struct fc_els_scr { __u8 scr_cmd; /* command code */ __u8 scr_resv[6]; /* reserved */ __u8 scr_reg_func; /* registration function (see below) */ }; enum fc_els_scr_func { ELS_SCRF_FAB = 1, /* fabric-detected registration */ ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ ELS_SCRF_FULL = 3, /* full registration */ ELS_SCRF_CLEAR = 255, /* remove any current registrations */ }; /* * ELS_RSCN - registered state change notification payload. */ struct fc_els_rscn { __u8 rscn_cmd; /* RSCN opcode (0x61) */ __u8 rscn_page_len; /* page length (4) */ __be16 rscn_plen; /* payload length including this word */ /* followed by 4-byte generic affected Port_ID pages */ }; struct fc_els_rscn_page { __u8 rscn_page_flags; /* event and address format */ __u8 rscn_fid[3]; /* fabric ID */ }; #define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ #define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ #define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ #define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ enum fc_els_rscn_ev_qual { ELS_EV_QUAL_NONE = 0, /* unspecified */ ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ }; enum fc_els_rscn_addr_fmt { ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ }; /* * ELS_RNID - request Node ID. */ struct fc_els_rnid { __u8 rnid_cmd; /* RNID opcode (0x78) */ __u8 rnid_resv[3]; /* reserved */ __u8 rnid_fmt; /* data format */ __u8 rnid_resv2[3]; /* reserved */ }; /* * Node Identification Data formats (rnid_fmt) */ enum fc_els_rnid_fmt { ELS_RNIDF_NONE = 0, /* no specific identification data */ ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ }; /* * ELS_RNID response. */ struct fc_els_rnid_resp { __u8 rnid_cmd; /* response code (LS_ACC) */ __u8 rnid_resv[3]; /* reserved */ __u8 rnid_fmt; /* data format */ __u8 rnid_cid_len; /* common ID data length */ __u8 rnid_resv2; /* reserved */ __u8 rnid_sid_len; /* specific ID data length */ }; struct fc_els_rnid_cid { __be64 rnid_wwpn; /* N port name */ __be64 rnid_wwnn; /* node name */ }; struct fc_els_rnid_gen { __u8 rnid_vend_id[16]; /* vendor-unique ID */ __be32 rnid_atype; /* associated type (see below) */ __be32 rnid_phys_port; /* physical port number */ __be32 rnid_att_nodes; /* number of attached nodes */ __u8 rnid_node_mgmt; /* node management (see below) */ __u8 rnid_ip_ver; /* IP version (see below) */ __be16 rnid_prot_port; /* UDP / TCP port number */ __be32 rnid_ip_addr[4]; /* IP address */ __u8 rnid_resvd[2]; /* reserved */ __be16 rnid_vend_spec; /* vendor-specific field */ }; enum fc_els_rnid_atype { ELS_RNIDA_UNK = 0x01, /* unknown */ ELS_RNIDA_OTHER = 0x02, /* none of the following */ ELS_RNIDA_HUB = 0x03, ELS_RNIDA_SWITCH = 0x04, ELS_RNIDA_GATEWAY = 0x05, ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ ELS_RNIDA_STORAGE = 0x09, ELS_RNIDA_HOST = 0x0a, ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ ELS_RNIDA_NAS = 0x11, /* NAS server */ ELS_RNIDA_BRIDGE = 0x12, /* bridge */ ELS_RNIDA_VIRT = 0x13, /* virtualization device */ ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ }; enum fc_els_rnid_mgmt { ELS_RNIDM_SNMP = 0, ELS_RNIDM_TELNET = 1, ELS_RNIDM_HTTP = 2, ELS_RNIDM_HTTPS = 3, ELS_RNIDM_XML = 4, /* HTTP + XML */ }; enum fc_els_rnid_ipver { ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ ELS_RNIDIP_V4 = 1, /* IPv4 */ ELS_RNIDIP_V6 = 2, /* IPv6 */ }; /* * ELS RPL - Read Port List. */ struct fc_els_rpl { __u8 rpl_cmd; /* command */ __u8 rpl_resv[5]; /* reserved - must be zero */ __be16 rpl_max_size; /* maximum response size or zero */ __u8 rpl_resv1; /* reserved - must be zero */ __u8 rpl_index[3]; /* starting index */ }; /* * Port number block in RPL response. */ struct fc_els_pnb { __be32 pnb_phys_pn; /* physical port number */ __u8 pnb_resv; /* reserved */ __u8 pnb_port_id[3]; /* port ID */ __be64 pnb_wwpn; /* port name */ }; /* * RPL LS_ACC response. */ struct fc_els_rpl_resp { __u8 rpl_cmd; /* ELS_LS_ACC */ __u8 rpl_resv1; /* reserved - must be zero */ __be16 rpl_plen; /* payload length */ __u8 rpl_resv2; /* reserved - must be zero */ __u8 rpl_llen[3]; /* list length */ __u8 rpl_resv3; /* reserved - must be zero */ __u8 rpl_index[3]; /* starting index */ struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ }; /* * Link Error Status Block. */ struct fc_els_lesb { __be32 lesb_link_fail; /* link failure count */ __be32 lesb_sync_loss; /* loss of synchronization count */ __be32 lesb_sig_loss; /* loss of signal count */ __be32 lesb_prim_err; /* primitive sequence error count */ __be32 lesb_inv_word; /* invalid transmission word count */ __be32 lesb_inv_crc; /* invalid CRC count */ }; /* * ELS RPS - Read Port Status Block request. */ struct fc_els_rps { __u8 rps_cmd; /* command */ __u8 rps_resv[2]; /* reserved - must be zero */ __u8 rps_flag; /* flag - see below */ __be64 rps_port_spec; /* port selection */ }; enum fc_els_rps_flag { FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ }; /* * ELS RPS LS_ACC response. */ struct fc_els_rps_resp { __u8 rps_cmd; /* command - LS_ACC */ __u8 rps_resv[2]; /* reserved - must be zero */ __u8 rps_flag; /* flag - see below */ __u8 rps_resv2[2]; /* reserved */ __be16 rps_status; /* port status - see below */ struct fc_els_lesb rps_lesb; /* link error status block */ }; enum fc_els_rps_resp_flag { FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ }; enum fc_els_rps_resp_status { FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ }; /* * ELS LIRR - Link Incident Record Registration request. */ struct fc_els_lirr { __u8 lirr_cmd; /* command */ __u8 lirr_resv[3]; /* reserved - must be zero */ __u8 lirr_func; /* registration function */ __u8 lirr_fmt; /* FC-4 type of RLIR requested */ __u8 lirr_resv2[2]; /* reserved - must be zero */ }; enum fc_els_lirr_func { ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ ELS_LIRR_CLEAR = 0xff /* clear registration */ }; /* * ELS SRL - Scan Remote Loop request. */ struct fc_els_srl { __u8 srl_cmd; /* command */ __u8 srl_resv[3]; /* reserved - must be zero */ __u8 srl_flag; /* flag - see below */ __u8 srl_flag_param[3]; /* flag parameter */ }; enum fc_els_srl_flag { FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ }; /* * ELS RLS - Read Link Error Status Block request. */ struct fc_els_rls { __u8 rls_cmd; /* command */ __u8 rls_resv[4]; /* reserved - must be zero */ __u8 rls_port_id[3]; /* port ID */ }; /* * ELS RLS LS_ACC Response. */ struct fc_els_rls_resp { __u8 rls_cmd; /* ELS_LS_ACC */ __u8 rls_resv[3]; /* reserved - must be zero */ struct fc_els_lesb rls_lesb; /* link error status block */ }; /* * ELS RLIR - Registered Link Incident Report. * This is followed by the CLIR and the CLID, described below. */ struct fc_els_rlir { __u8 rlir_cmd; /* command */ __u8 rlir_resv[3]; /* reserved - must be zero */ __u8 rlir_fmt; /* format (FC4-type if type specific) */ __u8 rlir_clr_len; /* common link incident record length */ __u8 rlir_cld_len; /* common link incident desc. length */ __u8 rlir_slr_len; /* spec. link incident record length */ }; /* * CLIR - Common Link Incident Record Data. - Sent via RLIR. */ struct fc_els_clir { __be64 clir_wwpn; /* incident port name */ __be64 clir_wwnn; /* incident port node name */ __u8 clir_port_type; /* incident port type */ __u8 clir_port_id[3]; /* incident port ID */ __be64 clir_conn_wwpn; /* connected port name */ __be64 clir_conn_wwnn; /* connected node name */ __be64 clir_fab_name; /* fabric name */ __be32 clir_phys_port; /* physical port number */ __be32 clir_trans_id; /* transaction ID */ __u8 clir_resv[3]; /* reserved */ __u8 clir_ts_fmt; /* time stamp format */ __be64 clir_timestamp; /* time stamp */ }; /* * CLIR clir_ts_fmt - time stamp format values. */ enum fc_els_clir_ts_fmt { ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ }; /* * Common Link Incident Descriptor - sent via RLIR. */ struct fc_els_clid { __u8 clid_iq; /* incident qualifier flags */ __u8 clid_ic; /* incident code */ __be16 clid_epai; /* domain/area of ISL */ }; /* * CLID incident qualifier flags. */ enum fc_els_clid_iq { ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ ELS_CLID_SEV_INFO = 0x00, /* report is informational */ ELS_CLID_SEV_INOP = 0x08, /* link not operational */ ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ ELS_CLID_LASER = 0x02, /* subassembly is a laser */ ELS_CLID_FRU = 0x01, /* format can identify a FRU */ }; /* * CLID incident code. */ enum fc_els_clid_ic { ELS_CLID_IC_IMPL = 1, /* implicit incident */ ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ ELS_CLID_IC_LIP = 8, /* receiving LIP */ }; /* * Link Integrity event types */ enum fc_fpin_li_event_types { FPIN_LI_UNKNOWN = 0x0, FPIN_LI_LINK_FAILURE = 0x1, FPIN_LI_LOSS_OF_SYNC = 0x2, FPIN_LI_LOSS_OF_SIG = 0x3, FPIN_LI_PRIM_SEQ_ERR = 0x4, FPIN_LI_INVALID_TX_WD = 0x5, FPIN_LI_INVALID_CRC = 0x6, FPIN_LI_DEVICE_SPEC = 0xF, }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_FPIN_LI_EVT_TYPES_INIT { \ { FPIN_LI_UNKNOWN, "Unknown" }, \ { FPIN_LI_LINK_FAILURE, "Link Failure" }, \ { FPIN_LI_LOSS_OF_SYNC, "Loss of Synchronization" }, \ { FPIN_LI_LOSS_OF_SIG, "Loss of Signal" }, \ { FPIN_LI_PRIM_SEQ_ERR, "Primitive Sequence Protocol Error" }, \ { FPIN_LI_INVALID_TX_WD, "Invalid Transmission Word" }, \ { FPIN_LI_INVALID_CRC, "Invalid CRC" }, \ { FPIN_LI_DEVICE_SPEC, "Device Specific" }, \ } /* * Delivery event types */ enum fc_fpin_deli_event_types { FPIN_DELI_UNKNOWN = 0x0, FPIN_DELI_TIMEOUT = 0x1, FPIN_DELI_UNABLE_TO_ROUTE = 0x2, FPIN_DELI_DEVICE_SPEC = 0xF, }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_FPIN_DELI_EVT_TYPES_INIT { \ { FPIN_DELI_UNKNOWN, "Unknown" }, \ { FPIN_DELI_TIMEOUT, "Timeout" }, \ { FPIN_DELI_UNABLE_TO_ROUTE, "Unable to Route" }, \ { FPIN_DELI_DEVICE_SPEC, "Device Specific" }, \ } /* * Congestion event types */ enum fc_fpin_congn_event_types { FPIN_CONGN_CLEAR = 0x0, FPIN_CONGN_LOST_CREDIT = 0x1, FPIN_CONGN_CREDIT_STALL = 0x2, FPIN_CONGN_OVERSUBSCRIPTION = 0x3, FPIN_CONGN_DEVICE_SPEC = 0xF, }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_FPIN_CONGN_EVT_TYPES_INIT { \ { FPIN_CONGN_CLEAR, "Clear" }, \ { FPIN_CONGN_LOST_CREDIT, "Lost Credit" }, \ { FPIN_CONGN_CREDIT_STALL, "Credit Stall" }, \ { FPIN_CONGN_OVERSUBSCRIPTION, "Oversubscription" }, \ { FPIN_CONGN_DEVICE_SPEC, "Device Specific" }, \ } enum fc_fpin_congn_severity_types { FPIN_CONGN_SEVERITY_WARNING = 0xF1, FPIN_CONGN_SEVERITY_ERROR = 0xF7, }; /* * Link Integrity Notification Descriptor */ struct fc_fn_li_desc { __be32 desc_tag; /* Descriptor Tag (0x00020001) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __be64 detecting_wwpn; /* Port Name that detected event */ __be64 attached_wwpn; /* Port Name of device attached to * detecting Port Name */ __be16 event_type; /* see enum fc_fpin_li_event_types */ __be16 event_modifier; /* Implementation specific value * describing the event type */ __be32 event_threshold;/* duration in ms of the link * integrity detection cycle */ __be32 event_count; /* minimum number of event * occurrences during the event * threshold to caause the LI event */ __be32 pname_count; /* number of portname_list elements */ __be64 pname_list[0]; /* list of N_Port_Names accessible * through the attached port */ }; /* * Delivery Notification Descriptor */ struct fc_fn_deli_desc { __be32 desc_tag; /* Descriptor Tag (0x00020002) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __be64 detecting_wwpn; /* Port Name that detected event */ __be64 attached_wwpn; /* Port Name of device attached to * detecting Port Name */ __be32 deli_reason_code;/* see enum fc_fpin_deli_event_types */ }; /* * Peer Congestion Notification Descriptor */ struct fc_fn_peer_congn_desc { __be32 desc_tag; /* Descriptor Tag (0x00020003) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __be64 detecting_wwpn; /* Port Name that detected event */ __be64 attached_wwpn; /* Port Name of device attached to * detecting Port Name */ __be16 event_type; /* see enum fc_fpin_congn_event_types */ __be16 event_modifier; /* Implementation specific value * describing the event type */ __be32 event_period; /* duration (ms) of the detected * congestion event */ __be32 pname_count; /* number of portname_list elements */ __be64 pname_list[0]; /* list of N_Port_Names accessible * through the attached port */ }; /* * Congestion Notification Descriptor */ struct fc_fn_congn_desc { __be32 desc_tag; /* Descriptor Tag (0x00020004) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __be16 event_type; /* see enum fc_fpin_congn_event_types */ __be16 event_modifier; /* Implementation specific value * describing the event type */ __be32 event_period; /* duration (ms) of the detected * congestion event */ __u8 severity; /* command */ __u8 resv[3]; /* reserved - must be zero */ }; /* * ELS_FPIN - Fabric Performance Impact Notification */ struct fc_els_fpin { __u8 fpin_cmd; /* command (0x16) */ __u8 fpin_zero[3]; /* specified as zero - part of cmd */ __be32 desc_len; /* Length of Descriptor List (in bytes). * Size of ELS excluding fpin_cmd, * fpin_zero and desc_len fields. */ struct fc_tlv_desc fpin_desc[0]; /* Descriptor list */ }; /* Diagnostic Function Descriptor - FPIN Registration */ struct fc_df_desc_fpin_reg { __be32 desc_tag; /* FPIN Registration (0x00030001) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. */ __be32 count; /* Number of desc_tags elements */ __be32 desc_tags[0]; /* Array of Descriptor Tags. * Each tag indicates a function * supported by the N_Port (request) * or by the N_Port and Fabric * Controller (reply; may be a subset * of the request). * See ELS_FN_DTAG_xxx for tag values. */ }; /* * ELS_RDF - Register Diagnostic Functions */ struct fc_els_rdf { __u8 fpin_cmd; /* command (0x19) */ __u8 fpin_zero[3]; /* specified as zero - part of cmd */ __be32 desc_len; /* Length of Descriptor List (in bytes). * Size of ELS excluding fpin_cmd, * fpin_zero and desc_len fields. */ struct fc_tlv_desc desc[0]; /* Descriptor list */ }; /* * ELS RDF LS_ACC Response. */ struct fc_els_rdf_resp { struct fc_els_ls_acc acc_hdr; __be32 desc_list_len; /* Length of response (in * bytes). Excludes acc_hdr * and desc_list_len fields. */ struct fc_els_lsri_desc lsri; struct fc_tlv_desc desc[0]; /* Supported Descriptor list */ }; /* * Diagnostic Capability Descriptors for EDC ELS */ /* * Diagnostic: Link Fault Capability Descriptor */ struct fc_diag_lnkflt_desc { __be32 desc_tag; /* Descriptor Tag (0x0001000D) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. * 12 bytes */ __be32 degrade_activate_threshold; __be32 degrade_deactivate_threshold; __be32 fec_degrade_interval; }; enum fc_edc_cg_signal_cap_types { /* Note: Capability: bits 31:4 Rsvd; bits 3:0 are capabilities */ EDC_CG_SIG_NOTSUPPORTED = 0x00, /* neither supported */ EDC_CG_SIG_WARN_ONLY = 0x01, EDC_CG_SIG_WARN_ALARM = 0x02, /* both supported */ }; /* * Initializer useful for decoding table. * Please keep this in sync with the above definitions. */ #define FC_EDC_CG_SIGNAL_CAP_TYPES_INIT { \ { EDC_CG_SIG_NOTSUPPORTED, "Signaling Not Supported" }, \ { EDC_CG_SIG_WARN_ONLY, "Warning Signal" }, \ { EDC_CG_SIG_WARN_ALARM, "Warning and Alarm Signals" }, \ } enum fc_diag_cg_sig_freq_types { EDC_CG_SIGFREQ_CNT_MIN = 1, /* Min Frequency Count */ EDC_CG_SIGFREQ_CNT_MAX = 999, /* Max Frequency Count */ EDC_CG_SIGFREQ_SEC = 0x1, /* Units: seconds */ EDC_CG_SIGFREQ_MSEC = 0x2, /* Units: milliseconds */ }; struct fc_diag_cg_sig_freq { __be16 count; /* Time between signals * note: upper 6 bits rsvd */ __be16 units; /* Time unit for count * note: upper 12 bits rsvd */ }; /* * Diagnostic: Congestion Signaling Capability Descriptor */ struct fc_diag_cg_sig_desc { __be32 desc_tag; /* Descriptor Tag (0x0001000F) */ __be32 desc_len; /* Length of Descriptor (in bytes). * Size of descriptor excluding * desc_tag and desc_len fields. * 16 bytes */ __be32 xmt_signal_capability; struct fc_diag_cg_sig_freq xmt_signal_frequency; __be32 rcv_signal_capability; struct fc_diag_cg_sig_freq rcv_signal_frequency; }; /* * ELS_EDC - Exchange Diagnostic Capabilities */ struct fc_els_edc { __u8 edc_cmd; /* command (0x17) */ __u8 edc_zero[3]; /* specified as zero - part of cmd */ __be32 desc_len; /* Length of Descriptor List (in bytes). * Size of ELS excluding edc_cmd, * edc_zero and desc_len fields. */ struct fc_tlv_desc desc[0]; /* Diagnostic Descriptor list */ }; /* * ELS EDC LS_ACC Response. */ struct fc_els_edc_resp { struct fc_els_ls_acc acc_hdr; __be32 desc_list_len; /* Length of response (in * bytes). Excludes acc_hdr * and desc_list_len fields. */ struct fc_els_lsri_desc lsri; struct fc_tlv_desc desc[0]; /* Supported Diagnostic Descriptor list */ }; #endif /* _FC_ELS_H_ */
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