/*
 * Copyright (c) 2005-2009 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 __FC_H__
#define __FC_H__

#include <protocol/types.h>

#pragma pack(1)

/*
 * Fibre Channel Header Structure (FCHS) definition
 */
struct fchs_s {
#ifdef __BIGENDIAN
        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 */

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

        u32        ro;          /* relative offset */
};
/*
 * Fibre Channel BB_E Header Structure
 */
struct fcbbehs_s {
        u16     ver_rsvd;
        u32     rsvd[2];
        u32     rsvd__sof;
};

#define FC_SEQ_ID_MAX           256

/*
 * 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 */
};

/*
 * information category for Link Control
 */
enum {
        FC_CAT_ACK_1            = 0x00,
        FC_CAT_ACK_0_N          = 0x01,
        FC_CAT_P_RJT            = 0x02,
        FC_CAT_F_RJT            = 0x03,
        FC_CAT_P_BSY            = 0x04,
        FC_CAT_F_BSY_DATA       = 0x05,
        FC_CAT_F_BSY_LINK_CTL   = 0x06,
        FC_CAT_F_LCR            = 0x07,
        FC_CAT_NTY              = 0x08,
        FC_CAT_END              = 0x09,
};

/*
 * 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_MAX             = 256,  /* 256 FC-4 types */
};

struct fc_fc4types_s{
        u8         bits[FC_TYPE_MAX / 8];
};

/*
 * 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_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 */
        u16        bbcred;      /* BB_Credit */

#ifdef __BIGENDIAN
        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

        u16        rxsz;                /* recieve data_field size */

        u16        conseq;
        u16        ro_bitmap;

        u32        e_d_tov;
};

/*
 * N_Port PLOGI Class Specific Parameters.
 * FC-PH-x. Figure 78. pg. 318.
 */
struct fc_plogi_clp_s{
#ifdef __BIGENDIAN
        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;
};

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

/*
 * 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 __BIGENDIAN
        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 __BIGENDIAN
        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 __BIGENDIAN
        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 __BIGENDIAN
        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 __BIGENDIAN
        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;
        u16        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];
        u32        asso_type;
        u32        phy_port_num;
        u32        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_s{
        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{
        u16        port_speed_cap;      /*! see fc_rpsc_speed_cap_t */
        u16        port_op_speed;       /*! see fc_rpsc_op_speed_t */
};

enum link_e2e_beacon_subcmd{
        LINK_E2E_BEACON_ON = 1,
        LINK_E2E_BEACON_OFF = 2
};

enum beacon_type{
        BEACON_TYPE_NORMAL      = 1,    /*! Normal Beaconing. Green */
        BEACON_TYPE_WARN        = 2,    /*! Warning Beaconing. Yellow/Amber */
        BEACON_TYPE_CRITICAL    = 3     /*! Critical Beaconing. Red */
};

struct link_e2e_beacon_param_s {
        u8         beacon_type; /* Beacon Type. See beacon_type_t */
        u8         beacon_frequency;
                                        /* Beacon frequency. Number of blinks
                                         * per 10 seconds
                                         */
        u16        beacon_duration;/* Beacon duration (in Seconds). The
                                         * command operation should be
                                         * terminated at the end of this
                                         * timeout value.
                                         *
                                         * Ignored if diag_sub_cmd is
                                         * LINK_E2E_BEACON_OFF.
                                         *
                                         * If 0, beaconing will continue till a
                                         * BEACON OFF request is received
                                         */
};

/*
 * Link E2E beacon request/good response format. For LS_RJTs use fc_ls_rjt_t
 */
struct link_e2e_beacon_req_s{
        u32        ls_code;     /*! FC_ELS_E2E_LBEACON in requests *
                                         *or FC_ELS_ACC in good replies */
        u32        ls_sub_cmd;  /*! See link_e2e_beacon_subcmd_t */
        struct link_e2e_beacon_param_s beacon_parm;
};

/**
 * If RPSC request is sent to the Domain Controller, the request is for
 * all the ports within that domain (TODO - I don't think FOS implements
 * this...).
 */
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;
        u32             token;
        u16             resvd;
        u16             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{
    u32    pid;        /* PID */
    u16    resvd1;
    u16    index;      /* port number / index */
    u8     resvd2;
    u8          type;        /* port type N/NL/... */
    u16    speed;      /* port Operating Speed */
};

/*
 * RPSC2 Accept payload
 */
struct fc_rpsc2_acc_s{
        u8        els_cmd;
        u8        resvd;
        u16       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)

/*
 * 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;
};

#pragma pack()

#endif