bfa_fc.h

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/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that 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.
 */

#ifndef __BFA_FC_H__
#define __BFA_FC_H__

#include "bfad_drv.h"

typedef u64 wwn_t;

#define WWN_NULL    (0)
#define FC_SYMNAME_MAX  256 /*  max name server symbolic name size */
#define FC_ALPA_MAX 128

#pragma pack(1)

#define MAC_ADDRLEN (6)
struct mac_s { u8 mac[MAC_ADDRLEN]; };
#define mac_t struct mac_s

/*
 * generic SCSI cdb definition
 */
#define SCSI_MAX_CDBLEN     16
struct scsi_cdb_s {
    u8         scsi_cdb[SCSI_MAX_CDBLEN];
};

/* ------------------------------------------------------------
 * SCSI status byte values
 * ------------------------------------------------------------
 */
#define SCSI_STATUS_GOOD                   0x00
#define SCSI_STATUS_CHECK_CONDITION        0x02
#define SCSI_STATUS_CONDITION_MET          0x04
#define SCSI_STATUS_BUSY                   0x08
#define SCSI_STATUS_INTERMEDIATE           0x10
#define SCSI_STATUS_ICM                    0x14 /* intermediate condition met */
#define SCSI_STATUS_RESERVATION_CONFLICT   0x18
#define SCSI_STATUS_COMMAND_TERMINATED     0x22
#define SCSI_STATUS_QUEUE_FULL             0x28
#define SCSI_STATUS_ACA_ACTIVE             0x30

#define SCSI_MAX_ALLOC_LEN      0xFF    /* maximum allocarion length */

/*
 * Fibre Channel Header Structure (FCHS) definition
 */
struct fchs_s {
#ifdef __BIG_ENDIAN
    u32        routing:4;   /* routing bits */
    u32        cat_info:4;  /* category info */
#else
    u32        cat_info:4;  /* category info */
    u32        routing:4;   /* routing bits */
#endif
    u32        d_id:24; /* destination identifier */

    u32        cs_ctl:8;    /* class specific control */
    u32        s_id:24; /* source identifier */

    u32        type:8;  /* data structure type */
    u32        f_ctl:24;    /* initial frame control */

    u8         seq_id;  /* sequence identifier */
    u8         df_ctl;  /* data field control */
    u16        seq_cnt; /* sequence count */

    __be16     ox_id;   /* originator exchange ID */
    u16        rx_id;   /* responder exchange ID */

    u32        ro;      /* relative offset */
};

/*
 * routing bit definitions
 */
enum {
    FC_RTG_FC4_DEV_DATA = 0x0,  /* FC-4 Device Data */
    FC_RTG_EXT_LINK     = 0x2,  /* Extended Link Data */
    FC_RTG_FC4_LINK_DATA    = 0x3,  /* FC-4 Link Data */
    FC_RTG_VIDEO_DATA   = 0x4,  /* Video Data */
    FC_RTG_EXT_HDR      = 0x5,  /* VFT, IFR or Encapsuled */
    FC_RTG_BASIC_LINK   = 0x8,  /* Basic Link data */
    FC_RTG_LINK_CTRL    = 0xC,  /* Link Control */
};

/*
 * information category for extended link data and FC-4 Link Data
 */
enum {
    FC_CAT_LD_REQUEST   = 0x2,  /* Request */
    FC_CAT_LD_REPLY     = 0x3,  /* Reply */
    FC_CAT_LD_DIAG      = 0xF,  /* for DIAG use only */
};

/*
 * information category for extended headers (VFT, IFR or encapsulation)
 */
enum {
    FC_CAT_VFT_HDR = 0x0,   /* Virtual fabric tagging header */
    FC_CAT_IFR_HDR = 0x1,   /* Inter-Fabric routing header */
    FC_CAT_ENC_HDR = 0x2,   /* Encapsulation header */
};

/*
 * information category for FC-4 device data
 */
enum {
    FC_CAT_UNCATEG_INFO = 0x0,  /* Uncategorized information */
    FC_CAT_SOLICIT_DATA = 0x1,  /* Solicited Data */
    FC_CAT_UNSOLICIT_CTRL   = 0x2,  /* Unsolicited Control */
    FC_CAT_SOLICIT_CTRL = 0x3,  /* Solicited Control */
    FC_CAT_UNSOLICIT_DATA   = 0x4,  /* Unsolicited Data */
    FC_CAT_DATA_DESC    = 0x5,  /* Data Descriptor */
    FC_CAT_UNSOLICIT_CMD    = 0x6,  /* Unsolicited Command */
    FC_CAT_CMD_STATUS   = 0x7,  /* Command Status */
};

/*
 * Type Field Definitions. FC-PH Section 18.5 pg. 165
 */
enum {
    FC_TYPE_BLS     = 0x0,  /* Basic Link Service */
    FC_TYPE_ELS     = 0x1,  /* Extended Link Service */
    FC_TYPE_IP      = 0x5,  /* IP */
    FC_TYPE_FCP     = 0x8,  /* SCSI-FCP */
    FC_TYPE_GPP     = 0x9,  /* SCSI_GPP */
    FC_TYPE_SERVICES    = 0x20, /* Fibre Channel Services */
    FC_TYPE_FC_FSS      = 0x22, /* Fabric Switch Services */
    FC_TYPE_FC_AL       = 0x23, /* FC-AL */
    FC_TYPE_FC_SNMP     = 0x24, /* FC-SNMP */
    FC_TYPE_FC_SPINFAB  = 0xEE, /* SPINFAB */
    FC_TYPE_FC_DIAG     = 0xEF, /* DIAG */
    FC_TYPE_MAX     = 256,  /* 256 FC-4 types */
};

/*
 * Frame Control Definitions. FC-PH Table-45. pg. 168
 */
enum {
    FCTL_EC_ORIG = 0x000000,    /* exchange originator */
    FCTL_EC_RESP = 0x800000,    /* exchange responder */
    FCTL_SEQ_INI = 0x000000,    /* sequence initiator */
    FCTL_SEQ_REC = 0x400000,    /* sequence recipient */
    FCTL_FS_EXCH = 0x200000,    /* first sequence of xchg */
    FCTL_LS_EXCH = 0x100000,    /* last sequence of xchg */
    FCTL_END_SEQ = 0x080000,    /* last frame of sequence */
    FCTL_SI_XFER = 0x010000,    /* seq initiative transfer */
    FCTL_RO_PRESENT = 0x000008, /* relative offset present */
    FCTL_FILLBYTE_MASK = 0x000003   /* , fill byte mask */
};

/*
 * Fabric Well Known Addresses
 */
enum {
    FC_MIN_WELL_KNOWN_ADDR      = 0xFFFFF0,
    FC_DOMAIN_CONTROLLER_MASK   = 0xFFFC00,
    FC_ALIAS_SERVER         = 0xFFFFF8,
    FC_MGMT_SERVER          = 0xFFFFFA,
    FC_TIME_SERVER          = 0xFFFFFB,
    FC_NAME_SERVER          = 0xFFFFFC,
    FC_FABRIC_CONTROLLER        = 0xFFFFFD,
    FC_FABRIC_PORT          = 0xFFFFFE,
    FC_BROADCAST_SERVER     = 0xFFFFFF
};

/*
 * domain/area/port defines
 */
#define FC_DOMAIN_MASK  0xFF0000
#define FC_DOMAIN_SHIFT 16
#define FC_AREA_MASK    0x00FF00
#define FC_AREA_SHIFT   8
#define FC_PORT_MASK    0x0000FF
#define FC_PORT_SHIFT   0

#define FC_GET_DOMAIN(p)    (((p) & FC_DOMAIN_MASK) >> FC_DOMAIN_SHIFT)
#define FC_GET_AREA(p)      (((p) & FC_AREA_MASK) >> FC_AREA_SHIFT)
#define FC_GET_PORT(p)      (((p) & FC_PORT_MASK) >> FC_PORT_SHIFT)

#define FC_DOMAIN_CTRLR(p)  (FC_DOMAIN_CONTROLLER_MASK | (FC_GET_DOMAIN(p)))

enum {
    FC_RXID_ANY = 0xFFFFU,
};

/*
 * generic ELS command
 */
struct fc_els_cmd_s {
    u32        els_code:8;  /* ELS Command Code */
    u32        reserved:24;
};

/*
 * ELS Command Codes. FC-PH Table-75. pg. 223
 */
enum {
    FC_ELS_LS_RJT = 0x1,    /* Link Service Reject. */
    FC_ELS_ACC = 0x02,  /* Accept */
    FC_ELS_PLOGI = 0x03,    /* N_Port Login. */
    FC_ELS_FLOGI = 0x04,    /* F_Port Login. */
    FC_ELS_LOGO = 0x05, /* Logout. */
    FC_ELS_ABTX = 0x06, /* Abort Exchange */
    FC_ELS_RES = 0x08,  /* Read Exchange status */
    FC_ELS_RSS = 0x09,  /* Read sequence status block */
    FC_ELS_RSI = 0x0A,  /* Request Sequence Initiative */
    FC_ELS_ESTC = 0x0C, /* Estimate Credit. */
    FC_ELS_RTV = 0x0E,  /* Read Timeout Value. */
    FC_ELS_RLS = 0x0F,  /* Read Link Status. */
    FC_ELS_ECHO = 0x10, /* Echo */
    FC_ELS_TEST = 0x11, /* Test */
    FC_ELS_RRQ = 0x12,  /* Reinstate Recovery Qualifier. */
    FC_ELS_REC = 0x13,  /* Add this for TAPE support in FCR */
    FC_ELS_PRLI = 0x20, /* Process Login */
    FC_ELS_PRLO = 0x21, /* Process Logout. */
    FC_ELS_SCN = 0x22,  /* State Change Notification. */
    FC_ELS_TPRLO = 0x24,    /* Third Party Process Logout. */
    FC_ELS_PDISC = 0x50,    /* Discover N_Port Parameters. */
    FC_ELS_FDISC = 0x51,    /* Discover F_Port Parameters. */
    FC_ELS_ADISC = 0x52,    /* Discover Address. */
    FC_ELS_FARP_REQ = 0x54, /* FARP Request. */
    FC_ELS_FARP_REP = 0x55, /* FARP Reply. */
    FC_ELS_FAN = 0x60,  /* Fabric Address Notification */
    FC_ELS_RSCN = 0x61, /* Reg State Change Notification */
    FC_ELS_SCR = 0x62,  /* State Change Registration. */
    FC_ELS_RTIN = 0x77, /* Mangement server request */
    FC_ELS_RNID = 0x78, /* Mangement server request */
    FC_ELS_RLIR = 0x79, /* Registered Link Incident Record */

    FC_ELS_RPSC = 0x7D, /* Report Port Speed Capabilities */
    FC_ELS_QSA = 0x7E,  /* Query Security Attributes. Ref FC-SP */
    FC_ELS_E2E_LBEACON = 0x81,
                /* End-to-End Link Beacon */
    FC_ELS_AUTH = 0x90, /* Authentication. Ref FC-SP */
    FC_ELS_RFCN = 0x97, /* Request Fabric Change Notification. Ref
                 *FC-SP */
};

/*
 *  Version numbers for FC-PH standards,
 *  used in login to indicate what port
 *  supports. See FC-PH-X table 158.
 */
enum {
    FC_PH_VER_4_3 = 0x09,
    FC_PH_VER_PH_3 = 0x20,
};

/*
 * PDU size defines
 */
enum {
    FC_MIN_PDUSZ = 512,
    FC_MAX_PDUSZ = 2112,
};

/*
 * N_Port PLOGI Common Service Parameters.
 * FC-PH-x. Figure-76. pg. 308.
 */
struct fc_plogi_csp_s {
    u8      verhi;      /* FC-PH high version */
    u8      verlo;      /* FC-PH low version */
    __be16      bbcred;     /* BB_Credit */

#ifdef __BIG_ENDIAN
    u8      ciro:1,     /* continuously increasing RO */
            rro:1,      /* random relative offset */
            npiv_supp:1,    /* NPIV supported */
            port_type:1,    /* N_Port/F_port */
            altbbcred:1,    /* alternate BB_Credit */
            resolution:1,   /* ms/ns ED_TOV resolution */
            vvl_info:1, /* VVL Info included */
            reserved1:1;

    u8      hg_supp:1,
            query_dbc:1,
            security:1,
            sync_cap:1,
            r_t_tov:1,
            dh_dup_supp:1,
            cisc:1,     /* continuously increasing seq count */
            payload:1;
#else
    u8      reserved2:2,
            resolution:1,   /* ms/ns ED_TOV resolution */
            altbbcred:1,    /* alternate BB_Credit */
            port_type:1,    /* N_Port/F_port */
            npiv_supp:1,    /* NPIV supported */
            rro:1,      /* random relative offset */
            ciro:1;     /* continuously increasing RO */

    u8      payload:1,
            cisc:1,     /* continuously increasing seq count */
            dh_dup_supp:1,
            r_t_tov:1,
            sync_cap:1,
            security:1,
            query_dbc:1,
            hg_supp:1;
#endif
    __be16      rxsz;       /* receive data_field size */
    __be16      conseq;
    __be16      ro_bitmap;
    __be32      e_d_tov;
};

/*
 * N_Port PLOGI Class Specific Parameters.
 * FC-PH-x. Figure 78. pg. 318.
 */
struct fc_plogi_clp_s {
#ifdef __BIG_ENDIAN
    u32        class_valid:1;
    u32        intermix:1;  /* class intermix supported if set =1.
                 * valid only for class1. Reserved for
                 * class2 & class3 */
    u32        reserved1:2;
    u32        sequential:1;
    u32        reserved2:3;
#else
    u32        reserved2:3;
    u32        sequential:1;
    u32        reserved1:2;
    u32        intermix:1;  /* class intermix supported if set =1.
                 * valid only for class1. Reserved for
                 * class2 & class3 */
    u32        class_valid:1;
#endif
    u32        reserved3:24;

    u32        reserved4:16;
    u32        rxsz:16; /* Receive data_field size */

    u32        reserved5:8;
    u32        conseq:8;
    u32        e2e_credit:16; /* end to end credit */

    u32        reserved7:8;
    u32        ospx:8;
    u32        reserved8:16;
};

/* ASCII value for each character in string "BRCD" */
#define FLOGI_VVL_BRCD    0x42524344

/*
 * PLOGI els command and reply payload
 */
struct fc_logi_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    struct fc_plogi_csp_s   csp;        /* common service params */
    wwn_t           port_name;
    wwn_t           node_name;
    struct fc_plogi_clp_s   class1;     /* class 1 service parameters */
    struct fc_plogi_clp_s   class2;     /* class 2 service parameters */
    struct fc_plogi_clp_s   class3;     /* class 3 service parameters */
    struct fc_plogi_clp_s   class4;     /* class 4 service parameters */
    u8          vvl[16];    /* vendor version level */
};

/*
 * LOGO els command payload
 */
struct fc_logo_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32         res1:8;
    u32     nport_id:24;    /* N_Port identifier of source */
    wwn_t           orig_port_name; /* Port name of the LOGO originator */
};

/*
 * ADISC els command payload
 */
struct fc_adisc_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32     res1:8;
    u32     orig_HA:24; /* originator hard address */
    wwn_t       orig_port_name; /* originator port name */
    wwn_t       orig_node_name; /* originator node name */
    u32     res2:8;
    u32     nport_id:24;    /* originator NPortID */
};

/*
 * Exchange status block
 */
struct fc_exch_status_blk_s {
    u32        oxid:16;
    u32        rxid:16;
    u32        res1:8;
    u32        orig_np:24;  /* originator NPortID */
    u32        res2:8;
    u32        resp_np:24;  /* responder NPortID */
    u32        es_bits;
    u32        res3;
    /*
     * un modified section of the fields
     */
};

/*
 * RES els command payload
 */
struct fc_res_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32        res1:8;
    u32        nport_id:24;     /* N_Port identifier of source */
    u32        oxid:16;
    u32        rxid:16;
    u8         assoc_hdr[32];
};

/*
 * RES els accept payload
 */
struct fc_res_acc_s {
    struct fc_els_cmd_s     els_cmd;    /* ELS command code */
    struct fc_exch_status_blk_s fc_exch_blk; /* Exchange status block */
};

/*
 * REC els command payload
 */
struct fc_rec_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32        res1:8;
    u32        nport_id:24; /* N_Port identifier of source */
    u32        oxid:16;
    u32        rxid:16;
};

#define FC_REC_ESB_OWN_RSP  0x80000000  /* responder owns */
#define FC_REC_ESB_SI       0x40000000  /* SI is owned  */
#define FC_REC_ESB_COMP     0x20000000  /* exchange is complete */
#define FC_REC_ESB_ENDCOND_ABN  0x10000000  /* abnormal ending  */
#define FC_REC_ESB_RQACT    0x04000000  /* recovery qual active */
#define FC_REC_ESB_ERRP_MSK 0x03000000
#define FC_REC_ESB_OXID_INV 0x00800000  /* invalid OXID     */
#define FC_REC_ESB_RXID_INV 0x00400000  /* invalid RXID     */
#define FC_REC_ESB_PRIO_INUSE   0x00200000

/*
 * REC els accept payload
 */
struct fc_rec_acc_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32        oxid:16;
    u32        rxid:16;
    u32        res1:8;
    u32        orig_id:24;  /* N_Port id of exchange originator */
    u32        res2:8;
    u32        resp_id:24;  /* N_Port id of exchange responder */
    u32        count;   /* data transfer count */
    u32        e_stat;  /* exchange status */
};

/*
 * RSI els payload
 */
struct fc_rsi_s {
    struct fc_els_cmd_s els_cmd;
    u32        res1:8;
    u32        orig_sid:24;
    u32        oxid:16;
    u32        rxid:16;
};

/*
 * structure for PRLI paramater pages, both request & response
 * see FC-PH-X table 113 & 115 for explanation also FCP table 8
 */
struct fc_prli_params_s {
    u32        reserved:16;
#ifdef __BIG_ENDIAN
    u32        reserved1:5;
    u32        rec_support:1;
    u32        task_retry_id:1;
    u32        retry:1;

    u32        confirm:1;
    u32        doverlay:1;
    u32        initiator:1;
    u32        target:1;
    u32        cdmix:1;
    u32        drmix:1;
    u32        rxrdisab:1;
    u32        wxrdisab:1;
#else
    u32        retry:1;
    u32        task_retry_id:1;
    u32        rec_support:1;
    u32        reserved1:5;

    u32        wxrdisab:1;
    u32        rxrdisab:1;
    u32        drmix:1;
    u32        cdmix:1;
    u32        target:1;
    u32        initiator:1;
    u32        doverlay:1;
    u32        confirm:1;
#endif
};

/*
 * valid values for rspcode in PRLI ACC payload
 */
enum {
    FC_PRLI_ACC_XQTD = 0x1,     /* request executed */
    FC_PRLI_ACC_PREDEF_IMG = 0x5,   /* predefined image - no prli needed */
};

struct fc_prli_params_page_s {
    u32        type:8;
    u32        codext:8;
#ifdef __BIG_ENDIAN
    u32        origprocasv:1;
    u32        rsppav:1;
    u32        imagepair:1;
    u32        reserved1:1;
    u32        rspcode:4;
#else
    u32        rspcode:4;
    u32        reserved1:1;
    u32        imagepair:1;
    u32        rsppav:1;
    u32        origprocasv:1;
#endif
    u32        reserved2:8;

    u32        origprocas;
    u32        rspprocas;
    struct fc_prli_params_s servparams;
};

/*
 * PRLI request and accept payload, FC-PH-X tables 112 & 114
 */
struct fc_prli_s {
    u32        command:8;
    u32        pglen:8;
    u32        pagebytes:16;
    struct fc_prli_params_page_s parampage;
};

/*
 * PRLO logout params page
 */
struct fc_prlo_params_page_s {
    u32        type:8;
    u32        type_ext:8;
#ifdef __BIG_ENDIAN
    u32        opa_valid:1; /* originator process associator valid */
    u32        rpa_valid:1; /* responder process associator valid */
    u32        res1:14;
#else
    u32        res1:14;
    u32        rpa_valid:1; /* responder process associator valid */
    u32        opa_valid:1; /* originator process associator valid */
#endif
    u32        orig_process_assc;
    u32        resp_process_assc;

    u32        res2;
};

/*
 * PRLO els command payload
 */
struct fc_prlo_s {
    u32 command:8;
    u32 page_len:8;
    u32 payload_len:16;
    struct fc_prlo_params_page_s    prlo_params[1];
};

/*
 * PRLO Logout response parameter page
 */
struct fc_prlo_acc_params_page_s {
    u32        type:8;
    u32        type_ext:8;

#ifdef __BIG_ENDIAN
    u32        opa_valid:1; /* originator process associator valid */
    u32        rpa_valid:1; /* responder process associator valid */
    u32        res1:14;
#else
    u32        res1:14;
    u32        rpa_valid:1; /* responder process associator valid */
    u32        opa_valid:1; /* originator process associator valid */
#endif
    u32        orig_process_assc;
    u32        resp_process_assc;

    u32        fc4type_csp;
};

/*
 * PRLO els command ACC payload
 */
struct fc_prlo_acc_s {
    u32        command:8;
    u32        page_len:8;
    u32        payload_len:16;
    struct fc_prlo_acc_params_page_s prlo_acc_params[1];
};

/*
 * SCR els command payload
 */
enum {
    FC_SCR_REG_FUNC_FABRIC_DETECTED = 0x01,
    FC_SCR_REG_FUNC_N_PORT_DETECTED = 0x02,
    FC_SCR_REG_FUNC_FULL = 0x03,
    FC_SCR_REG_FUNC_CLEAR_REG = 0xFF,
};

/* SCR VU registrations */
enum {
    FC_VU_SCR_REG_FUNC_FABRIC_NAME_CHANGE = 0x01
};

struct fc_scr_s {
    u32 command:8;
    u32 res:24;
    u32 vu_reg_func:8; /* Vendor Unique Registrations */
    u32 res1:16;
    u32 reg_func:8;
};

/*
 * Information category for Basic link data
 */
enum {
    FC_CAT_NOP  = 0x0,
    FC_CAT_ABTS = 0x1,
    FC_CAT_RMC  = 0x2,
    FC_CAT_BA_ACC   = 0x4,
    FC_CAT_BA_RJT   = 0x5,
    FC_CAT_PRMT = 0x6,
};

/*
 * LS_RJT els reply payload
 */
struct fc_ls_rjt_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32        res1:8;
    u32        reason_code:8;   /* Reason code for reject */
    u32        reason_code_expl:8;  /* Reason code explanation */
    u32        vendor_unique:8; /* Vendor specific */
};

/*
 * LS_RJT reason codes
 */
enum {
    FC_LS_RJT_RSN_INV_CMD_CODE  = 0x01,
    FC_LS_RJT_RSN_LOGICAL_ERROR = 0x03,
    FC_LS_RJT_RSN_LOGICAL_BUSY  = 0x05,
    FC_LS_RJT_RSN_PROTOCOL_ERROR    = 0x07,
    FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD = 0x09,
    FC_LS_RJT_RSN_CMD_NOT_SUPP  = 0x0B,
};

/*
 * LS_RJT reason code explanation
 */
enum {
    FC_LS_RJT_EXP_NO_ADDL_INFO      = 0x00,
    FC_LS_RJT_EXP_SPARMS_ERR_OPTIONS    = 0x01,
    FC_LS_RJT_EXP_SPARMS_ERR_INI_CTL    = 0x03,
    FC_LS_RJT_EXP_SPARMS_ERR_REC_CTL    = 0x05,
    FC_LS_RJT_EXP_SPARMS_ERR_RXSZ       = 0x07,
    FC_LS_RJT_EXP_SPARMS_ERR_CONSEQ     = 0x09,
    FC_LS_RJT_EXP_SPARMS_ERR_CREDIT     = 0x0B,
    FC_LS_RJT_EXP_INV_PORT_NAME     = 0x0D,
    FC_LS_RJT_EXP_INV_NODE_FABRIC_NAME  = 0x0E,
    FC_LS_RJT_EXP_INV_CSP           = 0x0F,
    FC_LS_RJT_EXP_INV_ASSOC_HDR     = 0x11,
    FC_LS_RJT_EXP_ASSOC_HDR_REQD        = 0x13,
    FC_LS_RJT_EXP_INV_ORIG_S_ID     = 0x15,
    FC_LS_RJT_EXP_INV_OXID_RXID_COMB    = 0x17,
    FC_LS_RJT_EXP_CMD_ALREADY_IN_PROG   = 0x19,
    FC_LS_RJT_EXP_LOGIN_REQUIRED        = 0x1E,
    FC_LS_RJT_EXP_INVALID_NPORT_ID      = 0x1F,
    FC_LS_RJT_EXP_INSUFF_RES        = 0x29,
    FC_LS_RJT_EXP_CMD_NOT_SUPP      = 0x2C,
    FC_LS_RJT_EXP_INV_PAYLOAD_LEN       = 0x2D,
};

/*
 * RRQ els command payload
 */
struct fc_rrq_s {
    struct fc_els_cmd_s els_cmd;    /* ELS command code */
    u32        res1:8;
    u32        s_id:24; /* exchange originator S_ID */

    u32        ox_id:16;    /* originator exchange ID */
    u32        rx_id:16;    /* responder exchange ID */

    u32        res2[8]; /* optional association header */
};

/*
 * ABTS BA_ACC reply payload
 */
struct fc_ba_acc_s {
    u32        seq_id_valid:8;  /* set to 0x00 for Abort Exchange */
    u32        seq_id:8;        /* invalid for Abort Exchange */
    u32        res2:16;
    u32        ox_id:16;        /* OX_ID from ABTS frame */
    u32        rx_id:16;        /* RX_ID from ABTS frame */
    u32        low_seq_cnt:16;  /* set to 0x0000 for Abort Exchange */
    u32        high_seq_cnt:16; /* set to 0xFFFF for Abort Exchange */
};

/*
 * ABTS BA_RJT reject payload
 */
struct fc_ba_rjt_s {
    u32        res1:8;      /* Reserved */
    u32        reason_code:8;   /* reason code for reject */
    u32        reason_expl:8;   /* reason code explanation */
    u32        vendor_unique:8; /* vendor unique reason code,set to 0 */
};

/*
 * TPRLO logout parameter page
 */
struct fc_tprlo_params_page_s {
    u32        type:8;
    u32        type_ext:8;

#ifdef __BIG_ENDIAN
    u32        opa_valid:1;
    u32        rpa_valid:1;
    u32        tpo_nport_valid:1;
    u32        global_process_logout:1;
    u32        res1:12;
#else
    u32        res1:12;
    u32        global_process_logout:1;
    u32        tpo_nport_valid:1;
    u32        rpa_valid:1;
    u32        opa_valid:1;
#endif

    u32        orig_process_assc;
    u32        resp_process_assc;

    u32        res2:8;
    u32        tpo_nport_id;
};

/*
 * TPRLO ELS command payload
 */
struct fc_tprlo_s {
    u32        command:8;
    u32        page_len:8;
    u32        payload_len:16;

    struct fc_tprlo_params_page_s tprlo_params[1];
};

enum fc_tprlo_type {
    FC_GLOBAL_LOGO = 1,
    FC_TPR_LOGO
};

/*
 * TPRLO els command ACC payload
 */
struct fc_tprlo_acc_s {
    u32 command:8;
    u32 page_len:8;
    u32 payload_len:16;
    struct fc_prlo_acc_params_page_s tprlo_acc_params[1];
};

/*
 * RSCN els command req payload
 */
#define FC_RSCN_PGLEN   0x4

enum fc_rscn_format {
    FC_RSCN_FORMAT_PORTID   = 0x0,
    FC_RSCN_FORMAT_AREA = 0x1,
    FC_RSCN_FORMAT_DOMAIN   = 0x2,
    FC_RSCN_FORMAT_FABRIC   = 0x3,
};

struct fc_rscn_event_s {
    u32 format:2;
    u32 qualifier:4;
    u32 resvd:2;
    u32 portid:24;
};

struct fc_rscn_pl_s {
    u8  command;
    u8  pagelen;
    __be16  payldlen;
    struct fc_rscn_event_s event[1];
};

/*
 * ECHO els command req payload
 */
struct fc_echo_s {
    struct fc_els_cmd_s els_cmd;
};

/*
 * RNID els command
 */
#define RNID_NODEID_DATA_FORMAT_COMMON          0x00
#define RNID_NODEID_DATA_FORMAT_FCP3            0x08
#define RNID_NODEID_DATA_FORMAT_DISCOVERY       0xDF

#define RNID_ASSOCIATED_TYPE_UNKNOWN            0x00000001
#define RNID_ASSOCIATED_TYPE_OTHER                      0x00000002
#define RNID_ASSOCIATED_TYPE_HUB                        0x00000003
#define RNID_ASSOCIATED_TYPE_SWITCH                     0x00000004
#define RNID_ASSOCIATED_TYPE_GATEWAY                    0x00000005
#define RNID_ASSOCIATED_TYPE_STORAGE_DEVICE             0x00000009
#define RNID_ASSOCIATED_TYPE_HOST                       0x0000000A
#define RNID_ASSOCIATED_TYPE_STORAGE_SUBSYSTEM          0x0000000B
#define RNID_ASSOCIATED_TYPE_STORAGE_ACCESS_DEVICE      0x0000000E
#define RNID_ASSOCIATED_TYPE_NAS_SERVER                 0x00000011
#define RNID_ASSOCIATED_TYPE_BRIDGE                     0x00000002
#define RNID_ASSOCIATED_TYPE_VIRTUALIZATION_DEVICE      0x00000003
#define RNID_ASSOCIATED_TYPE_MULTI_FUNCTION_DEVICE      0x000000FF

/*
 * RNID els command payload
 */
struct fc_rnid_cmd_s {
    struct fc_els_cmd_s els_cmd;
    u32        node_id_data_format:8;
    u32        reserved:24;
};

/*
 * RNID els response payload
 */

struct fc_rnid_common_id_data_s {
    wwn_t       port_name;
    wwn_t           node_name;
};

struct fc_rnid_general_topology_data_s {
    u32        vendor_unique[4];
    __be32     asso_type;
    u32        phy_port_num;
    __be32     num_attached_nodes;
    u32        node_mgmt:8;
    u32        ip_version:8;
    u32        udp_tcp_port_num:16;
    u32        ip_address[4];
    u32        reserved:16;
    u32        vendor_specific:16;
};

struct fc_rnid_acc_s {
    struct fc_els_cmd_s els_cmd;
    u32        node_id_data_format:8;
    u32        common_id_data_length:8;
    u32        reserved:8;
    u32        specific_id_data_length:8;
    struct fc_rnid_common_id_data_s common_id_data;
    struct fc_rnid_general_topology_data_s gen_topology_data;
};

#define RNID_ASSOCIATED_TYPE_UNKNOWN                    0x00000001
#define RNID_ASSOCIATED_TYPE_OTHER                      0x00000002
#define RNID_ASSOCIATED_TYPE_HUB                        0x00000003
#define RNID_ASSOCIATED_TYPE_SWITCH                     0x00000004
#define RNID_ASSOCIATED_TYPE_GATEWAY                    0x00000005
#define RNID_ASSOCIATED_TYPE_STORAGE_DEVICE             0x00000009
#define RNID_ASSOCIATED_TYPE_HOST                       0x0000000A
#define RNID_ASSOCIATED_TYPE_STORAGE_SUBSYSTEM          0x0000000B
#define RNID_ASSOCIATED_TYPE_STORAGE_ACCESS_DEVICE      0x0000000E
#define RNID_ASSOCIATED_TYPE_NAS_SERVER                 0x00000011
#define RNID_ASSOCIATED_TYPE_BRIDGE                     0x00000002
#define RNID_ASSOCIATED_TYPE_VIRTUALIZATION_DEVICE      0x00000003
#define RNID_ASSOCIATED_TYPE_MULTI_FUNCTION_DEVICE      0x000000FF

enum fc_rpsc_speed_cap {
    RPSC_SPEED_CAP_1G = 0x8000,
    RPSC_SPEED_CAP_2G = 0x4000,
    RPSC_SPEED_CAP_4G = 0x2000,
    RPSC_SPEED_CAP_10G = 0x1000,
    RPSC_SPEED_CAP_8G = 0x0800,
    RPSC_SPEED_CAP_16G = 0x0400,

    RPSC_SPEED_CAP_UNKNOWN = 0x0001,
};

enum fc_rpsc_op_speed {
    RPSC_OP_SPEED_1G = 0x8000,
    RPSC_OP_SPEED_2G = 0x4000,
    RPSC_OP_SPEED_4G = 0x2000,
    RPSC_OP_SPEED_10G = 0x1000,
    RPSC_OP_SPEED_8G = 0x0800,
    RPSC_OP_SPEED_16G = 0x0400,

    RPSC_OP_SPEED_NOT_EST = 0x0001, /* speed not established */
};

struct fc_rpsc_speed_info_s {
    __be16        port_speed_cap;   /* see enum fc_rpsc_speed_cap */
    __be16        port_op_speed;    /* see enum fc_rpsc_op_speed */
};

/*
 * If RPSC request is sent to the Domain Controller, the request is for
 * all the ports within that domain.
 */
struct fc_rpsc_cmd_s {
    struct fc_els_cmd_s els_cmd;
};

/*
 * RPSC Acc
 */
struct fc_rpsc_acc_s {
    u32        command:8;
    u32        rsvd:8;
    u32        num_entries:16;

    struct fc_rpsc_speed_info_s speed_info[1];
};

/*
 * If RPSC2 request is sent to the Domain Controller,
 */
#define FC_BRCD_TOKEN    0x42524344

struct fc_rpsc2_cmd_s {
    struct fc_els_cmd_s els_cmd;
    __be32  token;
    u16 resvd;
    __be16  num_pids;       /* Number of pids in the request */
    struct  {
        u32 rsvd1:8;
        u32 pid:24;     /* port identifier */
    } pid_list[1];
};

enum fc_rpsc2_port_type {
    RPSC2_PORT_TYPE_UNKNOWN = 0,
    RPSC2_PORT_TYPE_NPORT   = 1,
    RPSC2_PORT_TYPE_NLPORT  = 2,
    RPSC2_PORT_TYPE_NPIV_PORT  = 0x5f,
    RPSC2_PORT_TYPE_NPORT_TRUNK  = 0x6f,
};

/*
 * RPSC2 portInfo entry structure
 */
struct fc_rpsc2_port_info_s {
    __be32  pid;        /* PID */
    u16 resvd1;
    __be16  index;      /* port number / index */
    u8  resvd2;
    u8  type;       /* port type N/NL/... */
    __be16  speed;      /* port Operating Speed */
};

/*
 * RPSC2 Accept payload
 */
struct fc_rpsc2_acc_s {
    u8        els_cmd;
    u8        resvd;
    __be16    num_pids; /* Number of pids in the request */
    struct fc_rpsc2_port_info_s port_info[1]; /* port information */
};

/*
 * bit fields so that multiple classes can be specified
 */
enum fc_cos {
    FC_CLASS_2  = 0x04,
    FC_CLASS_3  = 0x08,
    FC_CLASS_2_3    = 0x0C,
};

/*
 * symbolic name
 */
struct fc_symname_s {
    u8         symname[FC_SYMNAME_MAX];
};

struct fc_alpabm_s {
    u8  alpa_bm[FC_ALPA_MAX / 8];
};

/*
 * protocol default timeout values
 */
#define FC_ED_TOV   2
#define FC_REC_TOV  (FC_ED_TOV + 1)
#define FC_RA_TOV   10
#define FC_ELS_TOV  ((2 * FC_RA_TOV) + 1)
#define FC_FCCT_TOV (3 * FC_RA_TOV)

/*
 * virtual fabric related defines
 */
#define FC_VF_ID_NULL    0  /*  must not be used as VF_ID */
#define FC_VF_ID_MIN     1
#define FC_VF_ID_MAX     0xEFF
#define FC_VF_ID_CTL     0xFEF  /*  control VF_ID */

/*
 * Virtual Fabric Tagging header format
 * @caution This is defined only in BIG ENDIAN format.
 */
struct fc_vft_s {
    u32        r_ctl:8;
    u32        ver:2;
    u32        type:4;
    u32        res_a:2;
    u32        priority:3;
    u32        vf_id:12;
    u32        res_b:1;
    u32        hopct:8;
    u32        res_c:24;
};

/*
 * FCP_CMND definitions
 */
#define FCP_CMND_CDB_LEN    16
#define FCP_CMND_LUN_LEN    8

struct fcp_cmnd_s {
    struct scsi_lun lun;        /* 64-bit LU number */
    u8      crn;        /* command reference number */
#ifdef __BIG_ENDIAN
    u8      resvd:1,
            priority:4, /* FCP-3: SAM-3 priority */
            taskattr:3; /* scsi task attribute */
#else
    u8      taskattr:3, /* scsi task attribute */
            priority:4, /* FCP-3: SAM-3 priority */
            resvd:1;
#endif
    u8      tm_flags;   /* task management flags */
#ifdef __BIG_ENDIAN
    u8      addl_cdb_len:6, /* additional CDB length words */
            iodir:2;    /* read/write FCP_DATA IUs */
#else
    u8      iodir:2,    /* read/write FCP_DATA IUs */
            addl_cdb_len:6; /* additional CDB length */
#endif
    struct scsi_cdb_s      cdb;

    __be32        fcp_dl;   /* bytes to be transferred */
};

#define fcp_cmnd_cdb_len(_cmnd) ((_cmnd)->addl_cdb_len * 4 + FCP_CMND_CDB_LEN)
#define fcp_cmnd_fcpdl(_cmnd)   ((&(_cmnd)->fcp_dl)[(_cmnd)->addl_cdb_len])

/*
 * struct fcp_cmnd_s .iodir field values
 */
enum fcp_iodir {
    FCP_IODIR_NONE  = 0,
    FCP_IODIR_WRITE = 1,
    FCP_IODIR_READ  = 2,
    FCP_IODIR_RW    = 3,
};

/*
 * Task management flags field - only one bit shall be set
 */
enum fcp_tm_cmnd {
    FCP_TM_ABORT_TASK_SET   = BIT(1),
    FCP_TM_CLEAR_TASK_SET   = BIT(2),
    FCP_TM_LUN_RESET    = BIT(4),
    FCP_TM_TARGET_RESET = BIT(5),   /* obsolete in FCP-3 */
    FCP_TM_CLEAR_ACA    = BIT(6),
};

/*
 * FCP_RSP residue flags
 */
enum fcp_residue {
    FCP_NO_RESIDUE = 0,     /* no residue */
    FCP_RESID_OVER = 1,     /* more data left that was not sent */
    FCP_RESID_UNDER = 2,    /* less data than requested */
};

struct fcp_rspinfo_s {
    u32        res0:24;
    u32        rsp_code:8;      /* response code (as above) */
    u32        res1;
};

struct fcp_resp_s {
    u32        reserved[2];     /* 2 words reserved */
    u16        reserved2;
#ifdef __BIG_ENDIAN
    u8         reserved3:3;
    u8         fcp_conf_req:1;  /* FCP_CONF is requested */
    u8         resid_flags:2;   /* underflow/overflow */
    u8         sns_len_valid:1; /* sense len is valid */
    u8         rsp_len_valid:1; /* response len is valid */
#else
    u8         rsp_len_valid:1; /* response len is valid */
    u8         sns_len_valid:1; /* sense len is valid */
    u8         resid_flags:2;   /* underflow/overflow */
    u8         fcp_conf_req:1;  /* FCP_CONF is requested */
    u8         reserved3:3;
#endif
    u8         scsi_status;     /* one byte SCSI status */
    u32        residue;     /* residual data bytes */
    u32        sns_len;     /* length od sense info */
    u32        rsp_len;     /* length of response info */
};

#define fcp_snslen(__fcprsp)    ((__fcprsp)->sns_len_valid ?        \
                    (__fcprsp)->sns_len : 0)
#define fcp_rsplen(__fcprsp)    ((__fcprsp)->rsp_len_valid ?        \
                    (__fcprsp)->rsp_len : 0)
#define fcp_rspinfo(__fcprsp)   ((struct fcp_rspinfo_s *)((__fcprsp) + 1))
#define fcp_snsinfo(__fcprsp)   (((u8 *)fcp_rspinfo(__fcprsp)) +    \
                        fcp_rsplen(__fcprsp))
/*
 * CT
 */
struct ct_hdr_s {
    u32 rev_id:8;   /* Revision of the CT */
    u32 in_id:24;   /* Initiator Id */
    u32 gs_type:8;  /* Generic service Type */
    u32 gs_sub_type:8;  /* Generic service sub type */
    u32 options:8;  /* options */
    u32 rsvrd:8;    /* reserved */
    u32 cmd_rsp_code:16;/* ct command/response code */
    u32 max_res_size:16;/* maximum/residual size */
    u32 frag_id:8;  /* fragment ID */
    u32 reason_code:8;  /* reason code */
    u32 exp_code:8; /* explanation code */
    u32 vendor_unq:8;   /* vendor unique */
};

/*
 * defines for the Revision
 */
enum {
    CT_GS3_REVISION = 0x01,
};

/*
 * defines for gs_type
 */
enum {
    CT_GSTYPE_KEYSERVICE    = 0xF7,
    CT_GSTYPE_ALIASSERVICE  = 0xF8,
    CT_GSTYPE_MGMTSERVICE   = 0xFA,
    CT_GSTYPE_TIMESERVICE   = 0xFB,
    CT_GSTYPE_DIRSERVICE    = 0xFC,
};

/*
 * defines for gs_sub_type for gs type directory service
 */
enum {
    CT_GSSUBTYPE_NAMESERVER = 0x02,
};

/*
 * defines for gs_sub_type for gs type management service
 */
enum {
    CT_GSSUBTYPE_CFGSERVER  = 0x01,
    CT_GSSUBTYPE_UNZONED_NS = 0x02,
    CT_GSSUBTYPE_ZONESERVER = 0x03,
    CT_GSSUBTYPE_LOCKSERVER = 0x04,
    CT_GSSUBTYPE_HBA_MGMTSERVER = 0x10, /* for FDMI */
};

/*
 * defines for CT response code field
 */
enum {
    CT_RSP_REJECT = 0x8001,
    CT_RSP_ACCEPT = 0x8002,
};

/*
 * defintions for CT reason code
 */
enum {
    CT_RSN_INV_CMD      = 0x01,
    CT_RSN_INV_VER      = 0x02,
    CT_RSN_LOGIC_ERR    = 0x03,
    CT_RSN_INV_SIZE     = 0x04,
    CT_RSN_LOGICAL_BUSY = 0x05,
    CT_RSN_PROTO_ERR    = 0x07,
    CT_RSN_UNABLE_TO_PERF   = 0x09,
    CT_RSN_NOT_SUPP     = 0x0B,
    CT_RSN_SERVER_NOT_AVBL  = 0x0D,
    CT_RSN_SESSION_COULD_NOT_BE_ESTBD = 0x0E,
    CT_RSN_VENDOR_SPECIFIC  = 0xFF,

};

/*
 * definitions for explanations code for Name server
 */
enum {
    CT_NS_EXP_NOADDITIONAL  = 0x00,
    CT_NS_EXP_ID_NOT_REG    = 0x01,
    CT_NS_EXP_PN_NOT_REG    = 0x02,
    CT_NS_EXP_NN_NOT_REG    = 0x03,
    CT_NS_EXP_CS_NOT_REG    = 0x04,
    CT_NS_EXP_IPN_NOT_REG   = 0x05,
    CT_NS_EXP_IPA_NOT_REG   = 0x06,
    CT_NS_EXP_FT_NOT_REG    = 0x07,
    CT_NS_EXP_SPN_NOT_REG   = 0x08,
    CT_NS_EXP_SNN_NOT_REG   = 0x09,
    CT_NS_EXP_PT_NOT_REG    = 0x0A,
    CT_NS_EXP_IPP_NOT_REG   = 0x0B,
    CT_NS_EXP_FPN_NOT_REG   = 0x0C,
    CT_NS_EXP_HA_NOT_REG    = 0x0D,
    CT_NS_EXP_FD_NOT_REG    = 0x0E,
    CT_NS_EXP_FF_NOT_REG    = 0x0F,
    CT_NS_EXP_ACCESSDENIED  = 0x10,
    CT_NS_EXP_UNACCEPTABLE_ID = 0x11,
    CT_NS_EXP_DATABASEEMPTY     = 0x12,
    CT_NS_EXP_NOT_REG_IN_SCOPE  = 0x13,
    CT_NS_EXP_DOM_ID_NOT_PRESENT    = 0x14,
    CT_NS_EXP_PORT_NUM_NOT_PRESENT  = 0x15,
    CT_NS_EXP_NO_DEVICE_ATTACHED    = 0x16
};

/*
 * defintions for the explanation code for all servers
 */
enum {
    CT_EXP_AUTH_EXCEPTION       = 0xF1,
    CT_EXP_DB_FULL          = 0xF2,
    CT_EXP_DB_EMPTY         = 0xF3,
    CT_EXP_PROCESSING_REQ       = 0xF4,
    CT_EXP_UNABLE_TO_VERIFY_CONN    = 0xF5,
    CT_EXP_DEVICES_NOT_IN_CMN_ZONE  = 0xF6
};

/*
 * Command codes for Name server
 */
enum {
    GS_GID_PN   = 0x0121,   /* Get Id on port name */
    GS_GPN_ID   = 0x0112,   /* Get port name on ID */
    GS_GNN_ID   = 0x0113,   /* Get node name on ID */
    GS_GID_FT   = 0x0171,   /* Get Id on FC4 type */
    GS_GSPN_ID  = 0x0118,   /* Get symbolic PN on ID */
    GS_RFT_ID   = 0x0217,   /* Register fc4type on ID */
    GS_RSPN_ID  = 0x0218,   /* Register symbolic PN on ID */
    GS_RSNN_NN  = 0x0239,   /* Register symbolic NN on NN */
    GS_RPN_ID   = 0x0212,   /* Register port name */
    GS_RNN_ID   = 0x0213,   /* Register node name */
    GS_RCS_ID   = 0x0214,   /* Register class of service */
    GS_RPT_ID   = 0x021A,   /* Register port type */
    GS_GA_NXT   = 0x0100,   /* Get all next */
    GS_RFF_ID   = 0x021F,   /* Register FC4 Feature     */
};

struct fcgs_id_req_s {
    u32 rsvd:8;
    u32 dap:24; /* port identifier */
};
#define fcgs_gpnid_req_t struct fcgs_id_req_s
#define fcgs_gnnid_req_t struct fcgs_id_req_s
#define fcgs_gspnid_req_t struct fcgs_id_req_s

struct fcgs_gidpn_req_s {
    wwn_t   port_name;  /* port wwn */
};

struct fcgs_gidpn_resp_s {
    u32 rsvd:8;
    u32 dap:24;     /* port identifier */
};

/*
 * RFT_ID
 */
struct fcgs_rftid_req_s {
    u32 rsvd:8;
    u32 dap:24;     /* port identifier */
    __be32  fc4_type[8];    /* fc4 types */
};

/*
 * RFF_ID : Register FC4 features.
 */
#define FC_GS_FCP_FC4_FEATURE_INITIATOR  0x02
#define FC_GS_FCP_FC4_FEATURE_TARGET     0x01

struct fcgs_rffid_req_s {
    u32 rsvd:8;
    u32 dap:24;     /* port identifier */
    u32 rsvd1:16;
    u32 fc4ftr_bits:8;  /* fc4 feature bits */
    u32 fc4_type:8;     /* corresponding FC4 Type */
};

/*
 * GID_FT Request
 */
struct fcgs_gidft_req_s {
    u8  reserved;
    u8  domain_id;  /* domain, 0 - all fabric */
    u8  area_id;    /* area, 0 - whole domain */
    u8  fc4_type;   /* FC_TYPE_FCP for SCSI devices */
};

/*
 * GID_FT Response
 */
struct fcgs_gidft_resp_s {
    u8  last:1;     /* last port identifier flag */
    u8  reserved:7;
    u32 pid:24;     /* port identifier */
};

/*
 * RSPN_ID
 */
struct fcgs_rspnid_req_s {
    u32 rsvd:8;
    u32 dap:24;     /* port identifier */
    u8  spn_len;    /* symbolic port name length */
    u8  spn[256];   /* symbolic port name */
};

/*
 * RSNN_NN
 */
struct fcgs_rsnn_nn_req_s {
    wwn_t   node_name;  /* Node name */
    u8  snn_len;    /* symbolic node name length */
    u8  snn[256];   /* symbolic node name */
};

/*
 * RPN_ID
 */
struct fcgs_rpnid_req_s {
    u32 rsvd:8;
    u32 port_id:24;
    wwn_t   port_name;
};

/*
 * RNN_ID
 */
struct fcgs_rnnid_req_s {
    u32 rsvd:8;
    u32 port_id:24;
    wwn_t   node_name;
};

/*
 * RCS_ID
 */
struct fcgs_rcsid_req_s {
    u32 rsvd:8;
    u32 port_id:24;
    u32 cos;
};

/*
 * RPT_ID
 */
struct fcgs_rptid_req_s {
    u32 rsvd:8;
    u32 port_id:24;
    u32 port_type:8;
    u32 rsvd1:24;
};

/*
 * GA_NXT Request
 */
struct fcgs_ganxt_req_s {
    u32 rsvd:8;
    u32 port_id:24;
};

/*
 * GA_NXT Response
 */
struct fcgs_ganxt_rsp_s {
    u32     port_type:8;    /* Port Type */
    u32     port_id:24; /* Port Identifier */
    wwn_t       port_name;  /* Port Name */
    u8      spn_len;    /* Length of Symbolic Port Name */
    char        spn[255];   /* Symbolic Port Name */
    wwn_t       node_name;  /* Node Name */
    u8      snn_len;    /* Length of Symbolic Node Name */
    char        snn[255];   /* Symbolic Node Name */
    u8      ipa[8];     /* Initial Process Associator */
    u8      ip[16];     /* IP Address */
    u32     cos;        /* Class of Service */
    u32     fc4types[8];    /* FC-4 TYPEs */
    wwn_t       fabric_port_name; /* Fabric Port Name */
    u32     rsvd:8;     /* Reserved */
    u32     hard_addr:24;   /* Hard Address */
};

/*
 * Command codes for Fabric Configuration Server
 */
enum {
    GS_FC_GFN_CMD   = 0x0114,   /* GS FC Get Fabric Name  */
    GS_FC_GMAL_CMD  = 0x0116,   /* GS FC GMAL  */
    GS_FC_TRACE_CMD = 0x0400,   /* GS FC Trace Route */
    GS_FC_PING_CMD  = 0x0401,   /* GS FC Ping */
};

/*
 * GMAL Command ( Get ( interconnect Element) Management Address List)
 * To retrieve the IP Address of a Switch.
 */
#define CT_GMAL_RESP_PREFIX_TELNET   "telnet://"
#define CT_GMAL_RESP_PREFIX_HTTP     "http://"

/*  GMAL/GFN request */
struct fcgs_req_s {
    wwn_t    wwn;   /* PWWN/NWWN */
};

#define fcgs_gmal_req_t struct fcgs_req_s
#define fcgs_gfn_req_t struct fcgs_req_s

/* Accept Response to GMAL */
struct fcgs_gmal_resp_s {
    __be32  ms_len;   /* Num of entries */
    u8  ms_ma[256];
};

struct fcgs_gmal_entry_s {
    u8  len;
    u8  prefix[7]; /* like "http://" */
    u8  ip_addr[248];
};

/*
 * FDMI Command Codes
 */
#define FDMI_GRHL       0x0100
#define FDMI_GHAT       0x0101
#define FDMI_GRPL       0x0102
#define FDMI_GPAT       0x0110
#define FDMI_RHBA       0x0200
#define FDMI_RHAT       0x0201
#define FDMI_RPRT       0x0210
#define FDMI_RPA        0x0211
#define FDMI_DHBA       0x0300
#define FDMI_DPRT       0x0310

/*
 * FDMI reason codes
 */
#define FDMI_NO_ADDITIONAL_EXP      0x00
#define FDMI_HBA_ALREADY_REG        0x10
#define FDMI_HBA_ATTRIB_NOT_REG     0x11
#define FDMI_HBA_ATTRIB_MULTIPLE    0x12
#define FDMI_HBA_ATTRIB_LENGTH_INVALID  0x13
#define FDMI_HBA_ATTRIB_NOT_PRESENT 0x14
#define FDMI_PORT_ORIG_NOT_IN_LIST  0x15
#define FDMI_PORT_HBA_NOT_IN_LIST   0x16
#define FDMI_PORT_ATTRIB_NOT_REG    0x20
#define FDMI_PORT_NOT_REG       0x21
#define FDMI_PORT_ATTRIB_MULTIPLE   0x22
#define FDMI_PORT_ATTRIB_LENGTH_INVALID 0x23
#define FDMI_PORT_ALREADY_REGISTEREED   0x24

/*
 * FDMI Transmission Speed Mask values
 */
#define FDMI_TRANS_SPEED_1G     0x00000001
#define FDMI_TRANS_SPEED_2G     0x00000002
#define FDMI_TRANS_SPEED_10G        0x00000004
#define FDMI_TRANS_SPEED_4G     0x00000008
#define FDMI_TRANS_SPEED_8G     0x00000010
#define FDMI_TRANS_SPEED_16G        0x00000020
#define FDMI_TRANS_SPEED_UNKNOWN    0x00008000

/*
 * FDMI HBA attribute types
 */
enum fdmi_hba_attribute_type {
    FDMI_HBA_ATTRIB_NODENAME = 1,   /* 0x0001 */
    FDMI_HBA_ATTRIB_MANUFACTURER,   /* 0x0002 */
    FDMI_HBA_ATTRIB_SERIALNUM,  /* 0x0003 */
    FDMI_HBA_ATTRIB_MODEL,      /* 0x0004 */
    FDMI_HBA_ATTRIB_MODEL_DESC, /* 0x0005 */
    FDMI_HBA_ATTRIB_HW_VERSION, /* 0x0006 */
    FDMI_HBA_ATTRIB_DRIVER_VERSION, /* 0x0007 */
    FDMI_HBA_ATTRIB_ROM_VERSION,    /* 0x0008 */
    FDMI_HBA_ATTRIB_FW_VERSION, /* 0x0009 */
    FDMI_HBA_ATTRIB_OS_NAME,    /* 0x000A */
    FDMI_HBA_ATTRIB_MAX_CT,     /* 0x000B */

    FDMI_HBA_ATTRIB_MAX_TYPE
};

/*
 * FDMI Port attribute types
 */
enum fdmi_port_attribute_type {
    FDMI_PORT_ATTRIB_FC4_TYPES = 1, /* 0x0001 */
    FDMI_PORT_ATTRIB_SUPP_SPEED,    /* 0x0002 */
    FDMI_PORT_ATTRIB_PORT_SPEED,    /* 0x0003 */
    FDMI_PORT_ATTRIB_FRAME_SIZE,    /* 0x0004 */
    FDMI_PORT_ATTRIB_DEV_NAME,  /* 0x0005 */
    FDMI_PORT_ATTRIB_HOST_NAME, /* 0x0006 */

    FDMI_PORT_ATTR_MAX_TYPE
};

/*
 * FDMI attribute
 */
struct fdmi_attr_s {
    __be16        type;
    __be16        len;
    u8         value[1];
};

/*
 * HBA Attribute Block
 */
struct fdmi_hba_attr_s {
    __be32        attr_count;   /* # of attributes */
    struct fdmi_attr_s hba_attr;    /* n attributes */
};

/*
 * Registered Port List
 */
struct fdmi_port_list_s {
    __be32      num_ports;  /* number Of Port Entries */
    wwn_t       port_entry; /* one or more */
};

/*
 * Port Attribute Block
 */
struct fdmi_port_attr_s {
    __be32        attr_count;   /* # of attributes */
    struct fdmi_attr_s port_attr;   /* n attributes */
};

/*
 * FDMI Register HBA Attributes
 */
struct fdmi_rhba_s {
    wwn_t           hba_id;     /* HBA Identifier */
    struct fdmi_port_list_s port_list;  /* Registered Port List */
    struct fdmi_hba_attr_s hba_attr_blk;    /* HBA attribute block */
};

/*
 * FDMI Register Port
 */
struct fdmi_rprt_s {
    wwn_t           hba_id;     /* HBA Identifier */
    wwn_t           port_name;  /* Port wwn */
    struct fdmi_port_attr_s port_attr_blk;  /* Port Attr Block */
};

/*
 * FDMI Register Port Attributes
 */
struct fdmi_rpa_s {
    wwn_t           port_name;  /* port wwn */
    struct fdmi_port_attr_s port_attr_blk;  /* Port Attr Block */
};

#pragma pack()

#endif  /* __BFA_FC_H__ */