/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright(c) 2007 Intel Corporation. All rights reserved.
*
* 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[]; /* 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[]; /* 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[]; /* 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[]; /* 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[]; /* 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[]; /* 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[]; /* 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[];
/* 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[];
/* Supported Diagnostic Descriptor list */
};
#endif /* _FC_ELS_H_ */
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