/*
 * Copyright 2017 Broadcom. All Rights Reserved.
 * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation. The full GNU General
 * Public License is included in this distribution in the file called COPYING.
 *
 * Contact Information:
 * linux-drivers@broadcom.com
 *
 */

#ifndef BEISCSI_CMDS_H
#define BEISCSI_CMDS_H

/**
 * The driver sends configuration and managements command requests to the
 * firmware in the BE. These requests are communicated to the processor
 * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
 * WRB inside a MAILBOX.
 * The commands are serviced by the ARM processor in the OneConnect's MPU.
 */
struct be_sge {
        __le32 pa_lo;
        __le32 pa_hi;
        __le32 len;
};

struct be_mcc_wrb {
        u32 emb_sgecnt_special; /* dword 0 */
        /* bits 0 - embedded    */
        /* bits 1 - 2 reserved  */
        /* bits 3 - 7 sge count */
        /* bits 8 - 23 reserved */
        /* bits 24 - 31 special */
#define MCC_WRB_EMBEDDED_MASK 1
#define MCC_WRB_SGE_CNT_SHIFT 3
#define MCC_WRB_SGE_CNT_MASK 0x1F
        u32 payload_length;     /* dword 1 */
        u32 tag0;               /* dword 2 */
        u32 tag1;               /* dword 3 */
        u32 rsvd;               /* dword 4 */
        union {
#define EMBED_MBX_MAX_PAYLOAD_SIZE  220
                u8 embedded_payload[236];       /* used by embedded cmds */
                struct be_sge sgl[19];  /* used by non-embedded cmds */
        } payload;
};

#define CQE_FLAGS_VALID_MASK (1 << 31)
#define CQE_FLAGS_ASYNC_MASK (1 << 30)
#define CQE_FLAGS_COMPLETED_MASK        (1 << 28)
#define CQE_FLAGS_CONSUMED_MASK         (1 << 27)

/* Completion Status */
#define MCC_STATUS_SUCCESS 0x0
#define MCC_STATUS_FAILED 0x1
#define MCC_STATUS_ILLEGAL_REQUEST 0x2
#define MCC_STATUS_ILLEGAL_FIELD 0x3
#define MCC_STATUS_INSUFFICIENT_BUFFER 0x4
#define MCC_STATUS_INVALID_LENGTH 0x74

#define CQE_STATUS_COMPL_MASK   0xFFFF
#define CQE_STATUS_COMPL_SHIFT  0               /* bits 0 - 15 */
#define CQE_STATUS_EXTD_MASK    0xFFFF
#define CQE_STATUS_EXTD_SHIFT   16              /* bits 31 - 16 */
#define CQE_STATUS_ADDL_MASK    0xFF00
#define CQE_STATUS_ADDL_SHIFT   8
#define CQE_STATUS_MASK         0xFF
#define CQE_STATUS_WRB_MASK     0xFF0000
#define CQE_STATUS_WRB_SHIFT    16

#define BEISCSI_HOST_MBX_TIMEOUT (110 * 1000)
#define BEISCSI_FW_MBX_TIMEOUT  100

/* MBOX Command VER */
#define MBX_CMD_VER1    0x01
#define MBX_CMD_VER2    0x02

struct be_mcc_compl {
        u32 status;             /* dword 0 */
        u32 tag0;               /* dword 1 */
        u32 tag1;               /* dword 2 */
        u32 flags;              /* dword 3 */
};

/********* Mailbox door bell *************/
/**
 * Used for driver communication with the FW.
 * The software must write this register twice to post any command. First,
 * it writes the register with hi=1 and the upper bits of the physical address
 * for the MAILBOX structure. Software must poll the ready bit until this
 * is acknowledged. Then, sotware writes the register with hi=0 with the lower
 * bits in the address. It must poll the ready bit until the command is
 * complete. Upon completion, the MAILBOX will contain a valid completion
 * queue entry.
 */
#define MPU_MAILBOX_DB_OFFSET   0x160
#define MPU_MAILBOX_DB_RDY_MASK 0x1     /* bit 0 */
#define MPU_MAILBOX_DB_HI_MASK  0x2     /* bit 1 */

/********** MPU semphore: used for SH & BE ******************/
#define SLIPORT_SOFTRESET_OFFSET                0x5c    /* CSR BAR offset */
#define SLIPORT_SEMAPHORE_OFFSET_BEx            0xac    /* CSR BAR offset */
#define SLIPORT_SEMAPHORE_OFFSET_SH             0x94    /* PCI-CFG offset */
#define POST_STAGE_MASK                         0x0000FFFF
#define POST_ERROR_BIT                          0x80000000
#define POST_ERR_RECOVERY_CODE_MASK             0xF000

/* Soft Reset register masks */
#define SLIPORT_SOFTRESET_SR_MASK               0x00000080      /* SR bit */

/* MPU semphore POST stage values */
#define POST_STAGE_AWAITING_HOST_RDY    0x1 /* FW awaiting goahead from host */
#define POST_STAGE_HOST_RDY             0x2 /* Host has given go-ahed to FW */
#define POST_STAGE_BE_RESET             0x3 /* Host wants to reset chip */
#define POST_STAGE_ARMFW_RDY            0xC000 /* FW is done with POST */
#define POST_STAGE_RECOVERABLE_ERR      0xE000 /* Recoverable err detected */

/********** MCC door bell ************/
#define DB_MCCQ_OFFSET 0x140
#define DB_MCCQ_RING_ID_MASK 0xFFFF             /* bits 0 - 15 */
/* Number of entries posted */
#define DB_MCCQ_NUM_POSTED_SHIFT 16             /* bits 16 - 29 */

/**
 * When the async bit of mcc_compl is set, the last 4 bytes of
 * mcc_compl is interpreted as follows:
 */
#define ASYNC_TRAILER_EVENT_CODE_SHIFT  8       /* bits 8 - 15 */
#define ASYNC_TRAILER_EVENT_CODE_MASK   0xFF
#define ASYNC_EVENT_CODE_LINK_STATE     0x1
#define ASYNC_EVENT_CODE_ISCSI          0x4
#define ASYNC_EVENT_CODE_SLI            0x11

#define ASYNC_TRAILER_EVENT_TYPE_SHIFT  16      /* bits 16 - 23 */
#define ASYNC_TRAILER_EVENT_TYPE_MASK   0xFF

/* iSCSI events */
#define ASYNC_EVENT_NEW_ISCSI_TGT_DISC  0x4
#define ASYNC_EVENT_NEW_ISCSI_CONN      0x5
#define ASYNC_EVENT_NEW_TCP_CONN        0x7

/* SLI events */
#define ASYNC_SLI_EVENT_TYPE_MISCONFIGURED      0x9
#define ASYNC_SLI_LINK_EFFECT_VALID(le)         (le & 0x80)
#define ASYNC_SLI_LINK_EFFECT_SEV(le)           ((le >> 1)  & 0x03)
#define ASYNC_SLI_LINK_EFFECT_STATE(le)         (le & 0x01)

struct be_async_event_trailer {
        u32 code;
};

enum {
        ASYNC_EVENT_LINK_DOWN = 0x0,
        ASYNC_EVENT_LINK_UP = 0x1,
};

/**
 * When the event code of an async trailer is link-state, the mcc_compl
 * must be interpreted as follows
 */
struct be_async_event_link_state {
        u8 physical_port;
        u8 port_link_status;
/**
 * ASYNC_EVENT_LINK_DOWN                0x0
 * ASYNC_EVENT_LINK_UP                  0x1
 * ASYNC_EVENT_LINK_LOGICAL_DOWN        0x2
 * ASYNC_EVENT_LINK_LOGICAL_UP          0x3
 */
#define BE_ASYNC_LINK_UP_MASK           0x01
        u8 port_duplex;
        u8 port_speed;
/* BE2ISCSI_LINK_SPEED_ZERO     0x00 - no link */
#define BE2ISCSI_LINK_SPEED_10MBPS      0x01
#define BE2ISCSI_LINK_SPEED_100MBPS     0x02
#define BE2ISCSI_LINK_SPEED_1GBPS       0x03
#define BE2ISCSI_LINK_SPEED_10GBPS      0x04
#define BE2ISCSI_LINK_SPEED_25GBPS      0x06
#define BE2ISCSI_LINK_SPEED_40GBPS      0x07
        u8 port_fault;
        u8 event_reason;
        u16 qos_link_speed;
        u32 event_tag;
        struct be_async_event_trailer trailer;
} __packed;

/**
 * When async-trailer is SLI event, mcc_compl is interpreted as
 */
struct be_async_event_sli {
        u32 event_data1;
        u32 event_data2;
        u32 reserved;
        u32 trailer;
} __packed;

struct be_mcc_mailbox {
        struct be_mcc_wrb wrb;
        struct be_mcc_compl compl;
};

/* Type of subsystems supported by FW */
#define CMD_SUBSYSTEM_COMMON    0x1
#define CMD_SUBSYSTEM_ISCSI     0x2
#define CMD_SUBSYSTEM_ETH       0x3
#define CMD_SUBSYSTEM_ISCSI_INI 0x6
#define CMD_COMMON_TCP_UPLOAD   0x1

/**
 * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_CQ_CREATE                         12
#define OPCODE_COMMON_EQ_CREATE                         13
#define OPCODE_COMMON_MCC_CREATE                        21
#define OPCODE_COMMON_MCC_CREATE_EXT                    90
#define OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS       24
#define OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS    25
#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES               32
#define OPCODE_COMMON_GET_FW_VERSION                    35
#define OPCODE_COMMON_MODIFY_EQ_DELAY                   41
#define OPCODE_COMMON_FIRMWARE_CONFIG                   42
#define OPCODE_COMMON_MCC_DESTROY                       53
#define OPCODE_COMMON_CQ_DESTROY                        54
#define OPCODE_COMMON_EQ_DESTROY                        55
#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG             58
#define OPCODE_COMMON_FUNCTION_RESET                    61
#define OPCODE_COMMON_GET_PORT_NAME                     77
#define OPCODE_COMMON_SET_HOST_DATA                     93
#define OPCODE_COMMON_SET_FEATURES                      191

/**
 * LIST of opcodes that are common between Initiator and Target
 * used by CMD_SUBSYSTEM_ISCSI
 * These opcodes are unique for each subsystem defined above
 */
#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES          2
#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG         7
#define OPCODE_COMMON_ISCSI_NTWK_SET_VLAN               14
#define OPCODE_COMMON_ISCSI_NTWK_CONFIG_STATELESS_IP_ADDR       17
#define OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR  18
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_IP_ADDR         21
#define OPCODE_COMMON_ISCSI_NTWK_GET_DEFAULT_GATEWAY    22
#define OPCODE_COMMON_ISCSI_NTWK_MODIFY_DEFAULT_GATEWAY 23
#define OPCODE_COMMON_ISCSI_NTWK_GET_ALL_IF_ID          24
#define OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO            25
#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
#define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY                65
#define OPCODE_COMMON_ISCSI_WRBQ_CREATE                 66
#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY                67

struct be_cmd_req_hdr {
        u8 opcode;              /* dword 0 */
        u8 subsystem;           /* dword 0 */
        u8 port_number;         /* dword 0 */
        u8 domain;              /* dword 0 */
        u32 timeout;            /* dword 1 */
        u32 request_length;     /* dword 2 */
        u8 version;             /* dword 3 */
        u8 rsvd0[3];            /* dword 3 */
};

struct be_cmd_resp_hdr {
        u32 info;               /* dword 0 */
        u32 status;             /* dword 1 */
        u32 response_length;    /* dword 2 */
        u32 actual_resp_len;    /* dword 3 */
};

struct phys_addr {
        u32 lo;
        u32 hi;
};

struct virt_addr {
        u32 lo;
        u32 hi;
};
/**************************
 * BE Command definitions *
 **************************/

/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_eq_context {
        u8 cidx[13];            /* dword 0 */
        u8 rsvd0[3];            /* dword 0 */
        u8 epidx[13];           /* dword 0 */
        u8 valid;               /* dword 0 */
        u8 rsvd1;               /* dword 0 */
        u8 size;                /* dword 0 */
        u8 pidx[13];            /* dword 1 */
        u8 rsvd2[3];            /* dword 1 */
        u8 pd[10];              /* dword 1 */
        u8 count[3];            /* dword 1 */
        u8 solevent;            /* dword 1 */
        u8 stalled;             /* dword 1 */
        u8 armed;               /* dword 1 */
        u8 rsvd3[4];            /* dword 2 */
        u8 func[8];             /* dword 2 */
        u8 rsvd4;               /* dword 2 */
        u8 delaymult[10];       /* dword 2 */
        u8 rsvd5[2];            /* dword 2 */
        u8 phase[2];            /* dword 2 */
        u8 nodelay;             /* dword 2 */
        u8 rsvd6[4];            /* dword 2 */
        u8 rsvd7[32];           /* dword 3 */
} __packed;

struct be_cmd_req_eq_create {
        struct be_cmd_req_hdr hdr;      /* dw[4] */
        u16 num_pages;          /* sword */
        u16 rsvd0;              /* sword */
        u8 context[sizeof(struct amap_eq_context) / 8]; /* dw[4] */
        struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_eq_create {
        struct be_cmd_resp_hdr resp_hdr;
        u16 eq_id;              /* sword */
        u16 rsvd0;              /* sword */
} __packed;

struct be_set_eqd {
        u32 eq_id;
        u32 phase;
        u32 delay_multiplier;
} __packed;

struct mgmt_chap_format {
        u32 flags;
        u8  intr_chap_name[256];
        u8  intr_secret[16];
        u8  target_chap_name[256];
        u8  target_secret[16];
        u16 intr_chap_name_length;
        u16 intr_secret_length;
        u16 target_chap_name_length;
        u16 target_secret_length;
} __packed;

struct mgmt_auth_method_format {
        u8      auth_method_type;
        u8      padding[3];
        struct  mgmt_chap_format chap;
} __packed;

struct be_cmd_req_logout_fw_sess {
        struct be_cmd_req_hdr hdr;      /* dw[4] */
        uint32_t session_handle;
} __packed;

struct be_cmd_resp_logout_fw_sess {
        struct be_cmd_resp_hdr hdr;     /* dw[4] */
        uint32_t session_status;
#define BE_SESS_STATUS_CLOSE            0x20
} __packed;

struct mgmt_conn_login_options {
        u8 flags;
        u8 header_digest;
        u8 data_digest;
        u8 rsvd0;
        u32 max_recv_datasegment_len_ini;
        u32 max_recv_datasegment_len_tgt;
        u32 tcp_mss;
        u32 tcp_window_size;
        struct  mgmt_auth_method_format auth_data;
} __packed;

struct ip_addr_format {
        u16 size_of_structure;
        u8 reserved;
        u8 ip_type;
#define BEISCSI_IP_TYPE_V4              0x1
#define BEISCSI_IP_TYPE_STATIC_V4       0x3
#define BEISCSI_IP_TYPE_DHCP_V4         0x5
/* type v4 values < type v6 values */
#define BEISCSI_IP_TYPE_V6              0x10
#define BEISCSI_IP_TYPE_ROUTABLE_V6     0x30
#define BEISCSI_IP_TYPE_LINK_LOCAL_V6   0x50
#define BEISCSI_IP_TYPE_AUTO_V6         0x90
        u8 addr[16];
        u32 rsvd0;
} __packed;

struct mgmt_conn_info {
        u32     connection_handle;
        u32     connection_status;
        u16     src_port;
        u16     dest_port;
        u16     dest_port_redirected;
        u16     cid;
        u32     estimated_throughput;
        struct  ip_addr_format  src_ipaddr;
        struct  ip_addr_format  dest_ipaddr;
        struct  ip_addr_format  dest_ipaddr_redirected;
        struct  mgmt_conn_login_options negotiated_login_options;
} __packed;

struct mgmt_session_login_options {
        u8      flags;
        u8      error_recovery_level;
        u16     rsvd0;
        u32     first_burst_length;
        u32     max_burst_length;
        u16     max_connections;
        u16     max_outstanding_r2t;
        u16     default_time2wait;
        u16     default_time2retain;
} __packed;

struct mgmt_session_info {
        u32     session_handle;
        u32     status;
        u8      isid[6];
        u16     tsih;
        u32     session_flags;
        u16     conn_count;
        u16     pad;
        u8      target_name[224];
        u8      initiator_iscsiname[224];
        struct  mgmt_session_login_options negotiated_login_options;
        struct  mgmt_conn_info  conn_list[1];
} __packed;

struct be_cmd_get_session_req {
        struct be_cmd_req_hdr hdr;
        u32 session_handle;
} __packed;

struct be_cmd_get_session_resp {
        struct be_cmd_resp_hdr hdr;
        struct mgmt_session_info session_info;
} __packed;

struct mac_addr {
        u16 size_of_structure;
        u8 addr[ETH_ALEN];
} __packed;

struct be_cmd_get_boot_target_req {
        struct be_cmd_req_hdr hdr;
} __packed;

struct be_cmd_get_boot_target_resp {
        struct be_cmd_resp_hdr hdr;
        u32 boot_session_count;
        u32 boot_session_handle;
/**
 * FW returns 0xffffffff if it couldn't establish connection with
 * configured boot target.
 */
#define BE_BOOT_INVALID_SHANDLE 0xffffffff
};

struct be_cmd_reopen_session_req {
        struct be_cmd_req_hdr hdr;
#define BE_REOPEN_ALL_SESSIONS  0x00
#define BE_REOPEN_BOOT_SESSIONS 0x01
#define BE_REOPEN_A_SESSION     0x02
        u16 reopen_type;
        u16 rsvd;
        u32 session_handle;
} __packed;

struct be_cmd_reopen_session_resp {
        struct be_cmd_resp_hdr hdr;
        u32 rsvd;
        u32 session_handle;
} __packed;


struct be_cmd_mac_query_req {
        struct be_cmd_req_hdr hdr;
        u8 type;
        u8 permanent;
        u16 if_id;
} __packed;

struct be_cmd_get_mac_resp {
        struct be_cmd_resp_hdr hdr;
        struct mac_addr mac;
};

struct be_ip_addr_subnet_format {
        u16 size_of_structure;
        u8 ip_type;
        u8 ipv6_prefix_length;
        u8 addr[16];
        u8 subnet_mask[16];
        u32 rsvd0;
} __packed;

struct be_cmd_get_if_info_req {
        struct be_cmd_req_hdr hdr;
        u32 interface_hndl;
        u32 ip_type;
} __packed;

struct be_cmd_get_if_info_resp {
        struct be_cmd_req_hdr hdr;
        u32 interface_hndl;
        u32 vlan_priority;
        u32 ip_addr_count;
        u32 dhcp_state;
        struct be_ip_addr_subnet_format ip_addr;
} __packed;

struct be_ip_addr_record {
        u32 action;
        u32 interface_hndl;
        struct be_ip_addr_subnet_format ip_addr;
        u32 status;
} __packed;

struct be_ip_addr_record_params {
        u32 record_entry_count;
        struct be_ip_addr_record ip_record;
} __packed;

struct be_cmd_set_ip_addr_req {
        struct be_cmd_req_hdr hdr;
        struct be_ip_addr_record_params ip_params;
} __packed;


struct be_cmd_set_dhcp_req {
        struct be_cmd_req_hdr hdr;
        u32 interface_hndl;
        u32 ip_type;
        u32 flags;
        u32 retry_count;
} __packed;

struct be_cmd_rel_dhcp_req {
        struct be_cmd_req_hdr hdr;
        u32 interface_hndl;
        u32 ip_type;
} __packed;

struct be_cmd_set_def_gateway_req {
        struct be_cmd_req_hdr hdr;
        u32 action;
        struct ip_addr_format ip_addr;
} __packed;

struct be_cmd_get_def_gateway_req {
        struct be_cmd_req_hdr hdr;
        u32 ip_type;
} __packed;

struct be_cmd_get_def_gateway_resp {
        struct be_cmd_req_hdr hdr;
        struct ip_addr_format ip_addr;
} __packed;

#define BEISCSI_VLAN_DISABLE    0xFFFF
struct be_cmd_set_vlan_req {
        struct be_cmd_req_hdr hdr;
        u32 interface_hndl;
        u32 vlan_priority;
} __packed;
/******************** Create CQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_cq_context {
        u8 cidx[11];            /* dword 0 */
        u8 rsvd0;               /* dword 0 */
        u8 coalescwm[2];        /* dword 0 */
        u8 nodelay;             /* dword 0 */
        u8 epidx[11];           /* dword 0 */
        u8 rsvd1;               /* dword 0 */
        u8 count[2];            /* dword 0 */
        u8 valid;               /* dword 0 */
        u8 solevent;            /* dword 0 */
        u8 eventable;           /* dword 0 */
        u8 pidx[11];            /* dword 1 */
        u8 rsvd2;               /* dword 1 */
        u8 pd[10];              /* dword 1 */
        u8 eqid[8];             /* dword 1 */
        u8 stalled;             /* dword 1 */
        u8 armed;               /* dword 1 */
        u8 rsvd3[4];            /* dword 2 */
        u8 func[8];             /* dword 2 */
        u8 rsvd4[20];           /* dword 2 */
        u8 rsvd5[32];           /* dword 3 */
} __packed;

struct amap_cq_context_v2 {
        u8 rsvd0[12];   /* dword 0 */
        u8 coalescwm[2];    /* dword 0 */
        u8 nodelay;     /* dword 0 */
        u8 rsvd1[12];   /* dword 0 */
        u8 count[2];    /* dword 0 */
        u8 valid;       /* dword 0 */
        u8 rsvd2;       /* dword 0 */
        u8 eventable;   /* dword 0 */
        u8 eqid[16];    /* dword 1 */
        u8 rsvd3[15];   /* dword 1 */
        u8 armed;       /* dword 1 */
        u8 cqecount[16];/* dword 2 */
        u8 rsvd4[16];   /* dword 2 */
        u8 rsvd5[32];   /* dword 3 */
};

struct be_cmd_req_cq_create {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u8 page_size;
        u8 rsvd0;
        u8 context[sizeof(struct amap_cq_context) / 8];
        struct phys_addr pages[4];
} __packed;

struct be_cmd_resp_cq_create {
        struct be_cmd_resp_hdr hdr;
        u16 cq_id;
        u16 rsvd0;
} __packed;

/******************** Create MCCQ ***************************/
/**
 * Pseudo amap definition in which each bit of the actual structure is defined
 * as a byte - used to calculate offset/shift/mask of each field
 */
struct amap_mcc_context {
        u8 con_index[14];
        u8 rsvd0[2];
        u8 ring_size[4];
        u8 fetch_wrb;
        u8 fetch_r2t;
        u8 cq_id[10];
        u8 prod_index[14];
        u8 fid[8];
        u8 pdid[9];
        u8 valid;
        u8 rsvd1[32];
        u8 rsvd2[32];
} __packed;

struct be_cmd_req_mcc_create_ext {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u16 rsvd0;
        u32 async_evt_bitmap;
        u8 context[sizeof(struct amap_mcc_context) / 8];
        struct phys_addr pages[8];
} __packed;

struct be_cmd_resp_mcc_create {
        struct be_cmd_resp_hdr hdr;
        u16 id;
        u16 rsvd0;
} __packed;

/******************** Q Destroy  ***************************/
/* Type of Queue to be destroyed */
enum {
        QTYPE_EQ = 1,
        QTYPE_CQ,
        QTYPE_MCCQ,
        QTYPE_WRBQ,
        QTYPE_DPDUQ,
        QTYPE_SGL
};

struct be_cmd_req_q_destroy {
        struct be_cmd_req_hdr hdr;
        u16 id;
        u16 bypass_flush;       /* valid only for rx q destroy */
} __packed;

struct macaddr {
        u8 byte[ETH_ALEN];
};

struct be_cmd_req_mcast_mac_config {
        struct be_cmd_req_hdr hdr;
        u16 num_mac;
        u8 promiscuous;
        u8 interface_id;
        struct macaddr mac[32];
} __packed;

static inline void *embedded_payload(struct be_mcc_wrb *wrb)
{
        return wrb->payload.embedded_payload;
}

static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
{
        return &wrb->payload.sgl[0];
}

/******************** Modify EQ Delay *******************/
struct be_cmd_req_modify_eq_delay {
        struct be_cmd_req_hdr hdr;
        __le32 num_eq;
        struct {
                __le32 eq_id;
                __le32 phase;
                __le32 delay_multiplier;
        } delay[MAX_CPUS];
} __packed;

/******************** Get MAC ADDR *******************/

struct be_cmd_get_nic_conf_resp {
        struct be_cmd_resp_hdr hdr;
        u32 nic_port_count;
        u32 speed;
        u32 max_speed;
        u32 link_state;
        u32 max_frame_size;
        u16 size_of_structure;
        u8 mac_address[ETH_ALEN];
} __packed;

/******************** Get HBA NAME *******************/

struct be_cmd_hba_name {
        struct be_cmd_req_hdr hdr;
        u16 flags;
        u16 rsvd0;
        u8 initiator_name[ISCSI_NAME_LEN];
#define BE_INI_ALIAS_LEN 32
        u8 initiator_alias[BE_INI_ALIAS_LEN];
} __packed;

/******************** COMMON SET HOST DATA *******************/
#define BE_CMD_SET_HOST_PARAM_ID        0x2
#define BE_CMD_MAX_DRV_VERSION          0x30
struct be_sethost_req {
        u32 param_id;
        u32 param_len;
        u32 param_data[32];
};

struct be_sethost_resp {
        u32 rsvd0;
};

struct be_cmd_set_host_data {
        union {
                struct be_cmd_req_hdr req_hdr;
                struct be_cmd_resp_hdr resp_hdr;
        } h;
        union {
                struct be_sethost_req req;
                struct be_sethost_resp resp;
        } param;
} __packed;

/******************** COMMON SET Features *******************/
#define BE_CMD_SET_FEATURE_UER  0x10
#define BE_CMD_UER_SUPP_BIT     0x1
struct be_uer_req {
        u32 uer;
        u32 rsvd;
};

struct be_uer_resp {
        u32 uer;
        u16 ue2rp;
        u16 ue2sr;
};

struct be_cmd_set_features {
        union {
                struct be_cmd_req_hdr req_hdr;
                struct be_cmd_resp_hdr resp_hdr;
        } h;
        u32 feature;
        u32 param_len;
        union {
                struct be_uer_req req;
                struct be_uer_resp resp;
                u32 rsvd[2];
        } param;
} __packed;

int beiscsi_cmd_function_reset(struct beiscsi_hba *phba);

int beiscsi_cmd_special_wrb(struct be_ctrl_info *ctrl, u32 load);

int beiscsi_check_fw_rdy(struct beiscsi_hba *phba);

int beiscsi_init_sliport(struct beiscsi_hba *phba);

int beiscsi_cmd_iscsi_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num);

int beiscsi_detect_ue(struct beiscsi_hba *phba);

int beiscsi_detect_tpe(struct beiscsi_hba *phba);

int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
                          struct be_queue_info *eq, int eq_delay);

int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
                          struct be_queue_info *cq, struct be_queue_info *eq,
                          bool sol_evts, bool no_delay,
                          int num_cqe_dma_coalesce);

int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
                          int type);
int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba,
                        struct be_queue_info *mccq,
                        struct be_queue_info *cq);

void free_mcc_wrb(struct be_ctrl_info *ctrl, unsigned int tag);

int beiscsi_modify_eq_delay(struct beiscsi_hba *phba, struct be_set_eqd *,
                            int num);
int beiscsi_mccq_compl_wait(struct beiscsi_hba *phba,
                            unsigned int tag,
                            struct be_mcc_wrb **wrb,
                            struct be_dma_mem *mbx_cmd_mem);
int __beiscsi_mcc_compl_status(struct beiscsi_hba *phba,
                               unsigned int tag,
                               struct be_mcc_wrb **wrb,
                               struct be_dma_mem *mbx_cmd_mem);
struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
void be_mcc_notify(struct beiscsi_hba *phba, unsigned int tag);
struct be_mcc_wrb *alloc_mcc_wrb(struct beiscsi_hba *phba,
                                 unsigned int *ref_tag);
void beiscsi_process_async_event(struct beiscsi_hba *phba,
                                struct be_mcc_compl *compl);
int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
                              struct be_mcc_compl *compl);

int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
                                    struct be_queue_info *cq,
                                    struct be_queue_info *dq, int length,
                                    int entry_size, uint8_t is_header,
                                    uint8_t ulp_num);

int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
                                    struct be_dma_mem *q_mem);

int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl);

int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
                                struct be_dma_mem *q_mem, u32 page_offset,
                                u32 num_pages);

int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
                       struct be_queue_info *wrbq,
                       struct hwi_wrb_context *pwrb_context,
                       uint8_t ulp_num);

/* Configuration Functions */
int be_cmd_set_vlan(struct beiscsi_hba *phba, uint16_t vlan_tag);

int beiscsi_check_supported_fw(struct be_ctrl_info *ctrl,
                               struct beiscsi_hba *phba);

int beiscsi_get_fw_config(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);

int beiscsi_get_port_name(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba);

int beiscsi_set_uer_feature(struct beiscsi_hba *phba);
int beiscsi_set_host_data(struct beiscsi_hba *phba);

struct be_default_pdu_context {
        u32 dw[4];
} __packed;

struct amap_be_default_pdu_context {
        u8 dbuf_cindex[13];     /* dword 0 */
        u8 rsvd0[3];            /* dword 0 */
        u8 ring_size[4];        /* dword 0 */
        u8 ring_state[4];       /* dword 0 */
        u8 rsvd1[8];            /* dword 0 */
        u8 dbuf_pindex[13];     /* dword 1 */
        u8 rsvd2;               /* dword 1 */
        u8 pci_func_id[8];      /* dword 1 */
        u8 rx_pdid[9];          /* dword 1 */
        u8 rx_pdid_valid;       /* dword 1 */
        u8 default_buffer_size[16];     /* dword 2 */
        u8 cq_id_recv[10];      /* dword 2 */
        u8 rx_pdid_not_valid;   /* dword 2 */
        u8 rsvd3[5];            /* dword 2 */
        u8 rsvd4[32];           /* dword 3 */
} __packed;

struct amap_default_pdu_context_ext {
        u8 rsvd0[16];   /* dword 0 */
        u8 ring_size[4];    /* dword 0 */
        u8 rsvd1[12];   /* dword 0 */
        u8 rsvd2[22];   /* dword 1 */
        u8 rx_pdid[9];  /* dword 1 */
        u8 rx_pdid_valid;   /* dword 1 */
        u8 default_buffer_size[16]; /* dword 2 */
        u8 cq_id_recv[16];  /* dword 2 */
        u8 rsvd3[32];   /* dword 3 */
} __packed;

struct be_defq_create_req {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u8 ulp_num;
#define BEISCSI_DUAL_ULP_AWARE_BIT      0       /* Byte 3 - Bit 0 */
#define BEISCSI_BIND_Q_TO_ULP_BIT       1       /* Byte 3 - Bit 1 */
        u8 dua_feature;
        struct be_default_pdu_context context;
        struct phys_addr pages[8];
} __packed;

struct be_defq_create_resp {
        struct be_cmd_req_hdr hdr;
        u16 id;
        u8 rsvd0;
        u8 ulp_num;
        u32 doorbell_offset;
        u16 register_set;
        u16 doorbell_format;
} __packed;

struct be_post_template_pages_req {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
#define BEISCSI_TEMPLATE_HDR_TYPE_ISCSI 0x1
        u16 type;
        struct phys_addr scratch_pa;
        struct virt_addr scratch_va;
        struct virt_addr pages_va;
        struct phys_addr pages[16];
} __packed;

struct be_remove_template_pages_req {
        struct be_cmd_req_hdr hdr;
        u16 type;
        u16 rsvd0;
} __packed;

struct be_post_sgl_pages_req {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u16 page_offset;
        u32 rsvd0;
        struct phys_addr pages[26];
        u32 rsvd1;
} __packed;

struct be_wrbq_create_req {
        struct be_cmd_req_hdr hdr;
        u16 num_pages;
        u8 ulp_num;
        u8 dua_feature;
        struct phys_addr pages[8];
} __packed;

struct be_wrbq_create_resp {
        struct be_cmd_resp_hdr resp_hdr;
        u16 cid;
        u8 rsvd0;
        u8 ulp_num;
        u32 doorbell_offset;
        u16 register_set;
        u16 doorbell_format;
} __packed;

#define SOL_CID_MASK            0x0000FFC0
#define SOL_CODE_MASK           0x0000003F
#define SOL_WRB_INDEX_MASK      0x00FF0000
#define SOL_CMD_WND_MASK        0xFF000000
#define SOL_RES_CNT_MASK        0x7FFFFFFF
#define SOL_EXP_CMD_SN_MASK     0xFFFFFFFF
#define SOL_HW_STS_MASK         0x000000FF
#define SOL_STS_MASK            0x0000FF00
#define SOL_RESP_MASK           0x00FF0000
#define SOL_FLAGS_MASK          0x7F000000
#define SOL_S_MASK              0x80000000

struct sol_cqe {
        u32 dw[4];
};

struct amap_sol_cqe {
        u8 hw_sts[8];           /* dword 0 */
        u8 i_sts[8];            /* dword 0 */
        u8 i_resp[8];           /* dword 0 */
        u8 i_flags[7];          /* dword 0 */
        u8 s;                   /* dword 0 */
        u8 i_exp_cmd_sn[32];    /* dword 1 */
        u8 code[6];             /* dword 2 */
        u8 cid[10];             /* dword 2 */
        u8 wrb_index[8];        /* dword 2 */
        u8 i_cmd_wnd[8];        /* dword 2 */

        u8 i_res_cnt[31];       /* dword 3 */
        u8 valid;               /* dword 3 */
} __packed;

#define SOL_ICD_INDEX_MASK      0x0003FFC0
struct amap_sol_cqe_ring {
        u8 hw_sts[8];           /* dword 0 */
        u8 i_sts[8];            /* dword 0 */
        u8 i_resp[8];           /* dword 0 */
        u8 i_flags[7];          /* dword 0 */
        u8 s;                   /* dword 0 */
        u8 i_exp_cmd_sn[32];    /* dword 1 */
        u8 code[6];             /* dword 2 */
        u8 icd_index[12];       /* dword 2 */
        u8 rsvd[6];             /* dword 2 */
        u8 i_cmd_wnd[8];        /* dword 2 */
        u8 i_res_cnt[31];       /* dword 3 */
        u8 valid;               /* dword 3 */
} __packed;

struct amap_sol_cqe_v2 {
        u8 hw_sts[8];   /* dword 0 */
        u8 i_sts[8];    /* dword 0 */
        u8 wrb_index[16];   /* dword 0 */
        u8 i_exp_cmd_sn[32];    /* dword 1 */
        u8 code[6]; /* dword 2 */
        u8 cmd_cmpl;    /* dword 2 */
        u8 rsvd0;   /* dword 2 */
        u8 i_cmd_wnd[8];    /* dword 2 */
        u8 cid[13]; /* dword 2 */
        u8 u;   /* dword 2 */
        u8 o;   /* dword 2 */
        u8 s;   /* dword 2 */
        u8 i_res_cnt[31];   /* dword 3 */
        u8 valid;   /* dword 3 */
} __packed;

struct common_sol_cqe {
        u32 exp_cmdsn;
        u32 res_cnt;
        u16 wrb_index;
        u16 cid;
        u8 hw_sts;
        u8 cmd_wnd;
        u8 res_flag; /* the s feild of structure */
        u8 i_resp; /* for skh if cmd_complete is set then i_sts is response */
        u8 i_flags; /* for skh or the u and o feilds */
        u8 i_sts; /* for skh if cmd_complete is not-set then i_sts is status */
};

/*** iSCSI ack/driver message completions ***/
struct amap_it_dmsg_cqe {
        u8 ack_num[32]; /* DWORD 0 */
        u8 pdu_bytes_rcvd[32];  /* DWORD 1 */
        u8 code[6]; /* DWORD 2 */
        u8 cid[10]; /* DWORD 2 */
        u8 wrb_idx[8];  /* DWORD 2 */
        u8 rsvd0[8];    /* DWORD 2*/
        u8 rsvd1[31];   /* DWORD 3*/
        u8 valid;   /* DWORD 3 */
} __packed;

struct amap_it_dmsg_cqe_v2 {
        u8 ack_num[32]; /* DWORD 0 */
        u8 pdu_bytes_rcvd[32];  /* DWORD 1 */
        u8 code[6]; /* DWORD 2 */
        u8 rsvd0[10];   /* DWORD 2 */
        u8 wrb_idx[16]; /* DWORD 2 */
        u8 rsvd1[16];   /* DWORD 3 */
        u8 cid[13]; /* DWORD 3 */
        u8 rsvd2[2];    /* DWORD 3 */
        u8 valid;   /* DWORD 3 */
} __packed;


/**
 * Post WRB Queue Doorbell Register used by the host Storage
 * stack to notify the
 * controller of a posted Work Request Block
 */
#define DB_WRB_POST_CID_MASK            0xFFFF  /* bits 0 - 16 */
#define DB_DEF_PDU_WRB_INDEX_MASK       0xFF    /* bits 0 - 9 */

#define DB_DEF_PDU_WRB_INDEX_SHIFT      16
#define DB_DEF_PDU_NUM_POSTED_SHIFT     24

struct fragnum_bits_for_sgl_cra_in {
        struct be_cmd_req_hdr hdr;
        u32 num_bits;
} __packed;

struct iscsi_cleanup_req {
        struct be_cmd_req_hdr hdr;
        u16 chute;
        u8 hdr_ring_id;
        u8 data_ring_id;
} __packed;

struct iscsi_cleanup_req_v1 {
        struct be_cmd_req_hdr hdr;
        u16 chute;
        u16 rsvd1;
        u16 hdr_ring_id;
        u16 rsvd2;
        u16 data_ring_id;
        u16 rsvd3;
} __packed;

struct eq_delay {
        u32 eq_id;
        u32 phase;
        u32 delay_multiplier;
} __packed;

struct be_eq_delay_params_in {
        struct be_cmd_req_hdr hdr;
        u32 num_eq;
        struct eq_delay delay[8];
} __packed;

struct tcp_connect_and_offload_in {
        struct be_cmd_req_hdr hdr;
        struct ip_addr_format ip_address;
        u16 tcp_port;
        u16 cid;
        u16 cq_id;
        u16 defq_id;
        struct phys_addr dataout_template_pa;
        u16 hdr_ring_id;
        u16 data_ring_id;
        u8 do_offload;
        u8 rsvd0[3];
} __packed;

struct tcp_connect_and_offload_in_v1 {
        struct be_cmd_req_hdr hdr;
        struct ip_addr_format ip_address;
        u16 tcp_port;
        u16 cid;
        u16 cq_id;
        u16 defq_id;
        struct phys_addr dataout_template_pa;
        u16 hdr_ring_id;
        u16 data_ring_id;
        u8 do_offload;
        u8 ifd_state;
        u8 rsvd0[2];
        u16 tcp_window_size;
        u8 tcp_window_scale_count;
        u8 rsvd1;
        u32 tcp_mss:24;
        u8 rsvd2;
} __packed;

struct tcp_connect_and_offload_out {
        struct be_cmd_resp_hdr hdr;
        u32 connection_handle;
        u16 cid;
        u16 rsvd0;

} __packed;

#define DB_DEF_PDU_RING_ID_MASK 0x3FFF  /* bits 0 - 13 */
#define DB_DEF_PDU_CQPROC_MASK          0x3FFF  /* bits 16 - 29 */
#define DB_DEF_PDU_REARM_SHIFT          14
#define DB_DEF_PDU_EVENT_SHIFT          15
#define DB_DEF_PDU_CQPROC_SHIFT         16

struct be_invalidate_connection_params_in {
        struct be_cmd_req_hdr hdr;
        u32 session_handle;
        u16 cid;
        u16 unused;
#define BE_CLEANUP_TYPE_INVALIDATE      0x8001
#define BE_CLEANUP_TYPE_ISSUE_TCP_RST   0x8002
        u16 cleanup_type;
        u16 save_cfg;
} __packed;

struct be_invalidate_connection_params_out {
        u32 session_handle;
        u16 cid;
        u16 unused;
} __packed;

union be_invalidate_connection_params {
        struct be_invalidate_connection_params_in req;
        struct be_invalidate_connection_params_out resp;
} __packed;

struct be_tcp_upload_params_in {
        struct be_cmd_req_hdr hdr;
        u16 id;
#define BE_UPLOAD_TYPE_GRACEFUL         1
/* abortive upload with reset */
#define BE_UPLOAD_TYPE_ABORT_RESET      2
/* abortive upload without reset */
#define BE_UPLOAD_TYPE_ABORT            3
/* abortive upload with reset, sequence number by driver */
#define BE_UPLOAD_TYPE_ABORT_WITH_SEQ   4
        u16 upload_type;
        u32 reset_seq;
} __packed;

struct be_tcp_upload_params_out {
        u32 dw[32];
} __packed;

union be_tcp_upload_params {
        struct be_tcp_upload_params_in request;
        struct be_tcp_upload_params_out response;
} __packed;

struct be_ulp_fw_cfg {
#define BEISCSI_ULP_ISCSI_INI_MODE      0x10
        u32 ulp_mode;
        u32 etx_base;
        u32 etx_count;
        u32 sq_base;
        u32 sq_count;
        u32 rq_base;
        u32 rq_count;
        u32 dq_base;
        u32 dq_count;
        u32 lro_base;
        u32 lro_count;
        u32 icd_base;
        u32 icd_count;
};

struct be_ulp_chain_icd {
        u32 chain_base;
        u32 chain_count;
};

struct be_fw_cfg {
        struct be_cmd_req_hdr hdr;
        u32 be_config_number;
        u32 asic_revision;
        u32 phys_port;
#define BEISCSI_FUNC_ISCSI_INI_MODE     0x10
#define BEISCSI_FUNC_DUA_MODE   0x800
        u32 function_mode;
        struct be_ulp_fw_cfg ulp[2];
        u32 function_caps;
        u32 cqid_base;
        u32 cqid_count;
        u32 eqid_base;
        u32 eqid_count;
        struct be_ulp_chain_icd chain_icd[2];
} __packed;

struct be_cmd_get_all_if_id_req {
        struct be_cmd_req_hdr hdr;
        u32 if_count;
        u32 if_hndl_list[1];
} __packed;

struct be_cmd_get_port_name {
        union {
                struct be_cmd_req_hdr req_hdr;
                struct be_cmd_resp_hdr resp_hdr;
        } h;
        union {
                struct {
                        u32 reserved;
                } req;
                struct {
                        u32 port_names;
                } resp;
        } p;
} __packed;

#define ISCSI_OPCODE_SCSI_DATA_OUT              5
#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY 5
#define OPCODE_COMMON_MODIFY_EQ_DELAY           41
#define OPCODE_COMMON_ISCSI_CLEANUP             59
#define OPCODE_COMMON_TCP_UPLOAD                56
#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
#define OPCODE_ISCSI_INI_CFG_GET_HBA_NAME       6
#define OPCODE_ISCSI_INI_CFG_SET_HBA_NAME       7
#define OPCODE_ISCSI_INI_SESSION_GET_A_SESSION  14
#define OPCODE_ISCSI_INI_SESSION_LOGOUT_TARGET   24
#define OPCODE_ISCSI_INI_DRIVER_REOPEN_ALL_SESSIONS 36
#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
#define OPCODE_ISCSI_INI_BOOT_GET_BOOT_TARGET   52
#define OPCODE_COMMON_WRITE_FLASH               96
#define OPCODE_COMMON_READ_FLASH                97

#define CMD_ISCSI_COMMAND_INVALIDATE            1

#define INI_WR_CMD                      1       /* Initiator write command */
#define INI_TMF_CMD                     2       /* Initiator TMF command */
#define INI_NOPOUT_CMD                  3       /* Initiator; Send a NOP-OUT */
#define INI_RD_CMD                      5       /* Initiator requesting to send
                                                 * a read command
                                                 */
#define TGT_CTX_UPDT_CMD                7       /* Target context update */
#define TGT_DM_CMD                      11      /* Indicates that the bhs
                                                 * prepared by driver should not
                                                 * be touched.
                                                 */

/* Returns the number of items in the field array. */
#define BE_NUMBER_OF_FIELD(_type_, _field_)     \
        (FIELD_SIZEOF(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\

/**
 * Different types of iSCSI completions to host driver for both initiator
 * and taget mode
 * of operation.
 */
#define SOL_CMD_COMPLETE                1       /* Solicited command completed
                                                 * normally
                                                 */
#define SOL_CMD_KILLED_DATA_DIGEST_ERR  2       /* Solicited command got
                                                 * invalidated internally due
                                                 * to Data Digest error
                                                 */
#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3       /* Connection got invalidated
                                                 * internally
                                                 * due to a received PDU
                                                 * size > DSL
                                                 */
#define CXN_KILLED_BURST_LEN_MISMATCH   4       /* Connection got invalidated
                                                 * internally due ti received
                                                 * PDU sequence size >
                                                 * FBL/MBL.
                                                 */
#define CXN_KILLED_AHS_RCVD             5       /* Connection got invalidated
                                                 * internally due to a received
                                                 * PDU Hdr that has
                                                 * AHS */
#define CXN_KILLED_HDR_DIGEST_ERR       6       /* Connection got invalidated
                                                 * internally due to Hdr Digest
                                                 * error
                                                 */
#define CXN_KILLED_UNKNOWN_HDR          7       /* Connection got invalidated
                                                 *  internally
                                                 * due to a bad opcode in the
                                                 * pdu hdr
                                                 */
#define CXN_KILLED_STALE_ITT_TTT_RCVD   8       /* Connection got invalidated
                                                 * internally due to a received
                                                 * ITT/TTT that does not belong
                                                 * to this Connection
                                                 */
#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9       /* Connection got invalidated
                                                 * internally due to received
                                                 * ITT/TTT value > Max
                                                 * Supported ITTs/TTTs
                                                 */
#define CXN_KILLED_RST_RCVD             10      /* Connection got invalidated
                                                 * internally due to an
                                                 * incoming TCP RST
                                                 */
#define CXN_KILLED_TIMED_OUT            11      /* Connection got invalidated
                                                 * internally due to timeout on
                                                 * tcp segment 12 retransmit
                                                 * attempts failed
                                                 */
#define CXN_KILLED_RST_SENT             12      /* Connection got invalidated
                                                 * internally due to TCP RST
                                                 * sent by the Tx side
                                                 */
#define CXN_KILLED_FIN_RCVD             13      /* Connection got invalidated
                                                 * internally due to an
                                                 * incoming TCP FIN.
                                                 */
#define CXN_KILLED_BAD_UNSOL_PDU_RCVD   14      /* Connection got invalidated
                                                 * internally due to bad
                                                 * unsolicited PDU Unsolicited
                                                 * PDUs are PDUs with
                                                 * ITT=0xffffffff
                                                 */
#define CXN_KILLED_BAD_WRB_INDEX_ERROR  15      /* Connection got invalidated
                                                 * internally due to bad WRB
                                                 * index.
                                                 */
#define CXN_KILLED_OVER_RUN_RESIDUAL    16      /* Command got invalidated
                                                 * internally due to received
                                                 * command has residual
                                                 * over run bytes.
                                                 */
#define CXN_KILLED_UNDER_RUN_RESIDUAL   17      /* Command got invalidated
                                                 * internally due to received
                                                 * command has residual under
                                                 * run bytes.
                                                 */
#define CMD_KILLED_INVALID_STATSN_RCVD  18      /* Command got invalidated
                                                 * internally due to a received
                                                 * PDU has an invalid StatusSN
                                                 */
#define CMD_KILLED_INVALID_R2T_RCVD     19      /* Command got invalidated
                                                 * internally due to a received
                                                 * an R2T with some invalid
                                                 * fields in it
                                                 */
#define CMD_CXN_KILLED_LUN_INVALID      20      /* Command got invalidated
                                                 * internally due to received
                                                 * PDU has an invalid LUN.
                                                 */
#define CMD_CXN_KILLED_ICD_INVALID      21      /* Command got invalidated
                                                 * internally due to the
                                                 * corresponding ICD not in a
                                                 * valid state
                                                 */
#define CMD_CXN_KILLED_ITT_INVALID      22      /* Command got invalidated due
                                                 *  to received PDU has an
                                                 *  invalid ITT.
                                                 */
#define CMD_CXN_KILLED_SEQ_OUTOFORDER   23      /* Command got invalidated due
                                                 * to received sequence buffer
                                                 * offset is out of order.
                                                 */
#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24   /* Command got invalidated
                                                 * internally due to a
                                                 * received PDU has an invalid
                                                 * DataSN
                                                 */
#define CXN_INVALIDATE_NOTIFY           25      /* Connection invalidation
                                                 * completion notify.
                                                 */
#define CXN_INVALIDATE_INDEX_NOTIFY     26      /* Connection invalidation
                                                 * completion
                                                 * with data PDU index.
                                                 */
#define CMD_INVALIDATED_NOTIFY          27      /* Command invalidation
                                                 * completionnotifify.
                                                 */
#define UNSOL_HDR_NOTIFY                28      /* Unsolicited header notify.*/
#define UNSOL_DATA_NOTIFY               29      /* Unsolicited data notify.*/
#define UNSOL_DATA_DIGEST_ERROR_NOTIFY  30      /* Unsolicited data digest
                                                 * error notify.
                                                 */
#define DRIVERMSG_NOTIFY                31      /* TCP acknowledge based
                                                 * notification.
                                                 */
#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
                                                  * internally due to command
                                                  * and data are not on same
                                                  * connection.
                                                  */
#define SOL_CMD_KILLED_DIF_ERR          33      /* Solicited command got
                                                 *  invalidated internally due
                                                 *  to DIF error
                                                 */
#define CXN_KILLED_SYN_RCVD             34      /* Connection got invalidated
                                                 * internally due to incoming
                                                 * TCP SYN
                                                 */
#define CXN_KILLED_IMM_DATA_RCVD        35      /* Connection got invalidated
                                                 * internally due to an
                                                 * incoming Unsolicited PDU
                                                 * that has immediate data on
                                                 * the cxn
                                                 */

void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, u32 payload_len,
                        bool embedded, u8 sge_cnt);

void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
                        u8 subsystem, u8 opcode, u32 cmd_len);
#endif /* !BEISCSI_CMDS_H */