/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 *  Copyright (c) 2009-2020 Alexander Motin <mav@FreeBSD.org>
 *  Copyright (c) 1997-2009 by Matthew Jacob
 *  All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 * 
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 
 *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 * 
 */

/*
 * Mailbox and Queue Entry Definitions for Qlogic ISP SCSI adapters.
 */
#ifndef _ISPMBOX_H
#define _ISPMBOX_H

/*
 * Mailbox Command Opcodes
 */
#define MBOX_NO_OP                      0x0000
#define MBOX_LOAD_RAM                   0x0001
#define MBOX_EXEC_FIRMWARE              0x0002
#define MBOX_LOAD_FLASH_FIRMWARE        0x0003
#define MBOX_WRITE_RAM_WORD             0x0004
#define MBOX_READ_RAM_WORD              0x0005
#define MBOX_MAILBOX_REG_TEST           0x0006
#define MBOX_VERIFY_CHECKSUM            0x0007
#define MBOX_ABOUT_FIRMWARE             0x0008
#define MBOX_LOAD_RISC_RAM_2100         0x0009
#define MBOX_DUMP_RISC_RAM_2100         0x000a
#define MBOX_SECURE_FLASH_UPDATE        0x000a  /* Secure Flash Update(28xx) */
#define MBOX_LOAD_RISC_RAM              0x000b
#define MBOX_DUMP_RISC_RAM              0x000c
#define MBOX_WRITE_RAM_WORD_EXTENDED    0x000d
#define MBOX_CHECK_FIRMWARE             0x000e
#define MBOX_READ_RAM_WORD_EXTENDED     0x000f
#define MBOX_INIT_REQ_QUEUE             0x0010
#define MBOX_INIT_RES_QUEUE             0x0011
#define MBOX_EXECUTE_IOCB               0x0012
#define MBOX_WAKE_UP                    0x0013
#define MBOX_STOP_FIRMWARE              0x0014
#define MBOX_ABORT                      0x0015
#define MBOX_ABORT_DEVICE               0x0016
#define MBOX_ABORT_TARGET               0x0017
#define MBOX_BUS_RESET                  0x0018
#define MBOX_STOP_QUEUE                 0x0019
#define MBOX_START_QUEUE                0x001a
#define MBOX_SINGLE_STEP_QUEUE          0x001b
#define MBOX_ABORT_QUEUE                0x001c
#define MBOX_GET_DEV_QUEUE_STATUS       0x001d
                                        /*  1e */
#define MBOX_GET_FIRMWARE_STATUS        0x001f
#define MBOX_GET_INIT_SCSI_ID           0x0020
#define MBOX_GET_SELECT_TIMEOUT         0x0021
#define MBOX_GET_RETRY_COUNT            0x0022
#define MBOX_GET_TAG_AGE_LIMIT          0x0023
#define MBOX_GET_CLOCK_RATE             0x0024
#define MBOX_GET_ACT_NEG_STATE          0x0025
#define MBOX_GET_ASYNC_DATA_SETUP_TIME  0x0026
#define MBOX_GET_SBUS_PARAMS            0x0027
#define         MBOX_GET_PCI_PARAMS     MBOX_GET_SBUS_PARAMS
#define MBOX_GET_TARGET_PARAMS          0x0028
#define MBOX_GET_DEV_QUEUE_PARAMS       0x0029
#define MBOX_GET_RESET_DELAY_PARAMS     0x002a
                                        /*  2b */
                                        /*  2c */
                                        /*  2d */
                                        /*  2e */
                                        /*  2f */
#define MBOX_SET_INIT_SCSI_ID           0x0030
#define MBOX_SET_SELECT_TIMEOUT         0x0031
#define MBOX_SET_RETRY_COUNT            0x0032
#define MBOX_SET_TAG_AGE_LIMIT          0x0033
#define MBOX_SET_CLOCK_RATE             0x0034
#define MBOX_SET_ACT_NEG_STATE          0x0035
#define MBOX_SET_ASYNC_DATA_SETUP_TIME  0x0036
#define MBOX_SET_SBUS_CONTROL_PARAMS    0x0037
#define         MBOX_SET_PCI_PARAMETERS 0x0037
#define MBOX_SET_TARGET_PARAMS          0x0038
#define MBOX_SET_DEV_QUEUE_PARAMS       0x0039
#define MBOX_SET_RESET_DELAY_PARAMS     0x003a
                                        /*  3b */
                                        /*  3c */
                                        /*  3d */
                                        /*  3e */
                                        /*  3f */
#define MBOX_RETURN_BIOS_BLOCK_ADDR     0x0040
#define MBOX_WRITE_FOUR_RAM_WORDS       0x0041
#define MBOX_EXEC_BIOS_IOCB             0x0042
#define MBOX_SET_FW_FEATURES            0x004a
#define MBOX_GET_FW_FEATURES            0x004b
#define         FW_FEATURE_FAST_POST    0x1
#define         FW_FEATURE_LVD_NOTIFY   0x2
#define         FW_FEATURE_RIO_32BIT    0x4
#define         FW_FEATURE_RIO_16BIT    0x8

#define MBOX_INIT_REQ_QUEUE_A64         0x0052
#define MBOX_INIT_RES_QUEUE_A64         0x0053

#define MBOX_ENABLE_TARGET_MODE         0x0055
#define         ENABLE_TARGET_FLAG      0x8000
#define         ENABLE_TQING_FLAG       0x0004
#define         ENABLE_MANDATORY_DISC   0x0002
#define MBOX_GET_TARGET_STATUS          0x0056

/* These are for the ISP2X00 FC cards */
#define MBOX_WRITE_FC_SERDES_REG        0x0003  /* FC only */
#define MBOX_READ_FC_SERDES_REG         0x0004  /* FC only */
#define MBOX_GET_IO_STATUS              0x0012
#define MBOX_SET_TRANSMIT_PARAMS        0x0019
#define MBOX_SET_PORT_PARAMS            0x001a
#define MBOX_LOAD_OP_FW_PARAMS          0x001b
#define MBOX_INIT_MULTIPLE_QUEUE        0x001f
#define MBOX_GET_LOOP_ID                0x0020
/* for 24XX cards, outgoing mailbox 7 has these values for F or FL topologies */
#define         ISP24XX_INORDER         0x0100
#define         ISP24XX_NPIV_SAN        0x0400
#define         ISP24XX_VSAN_SAN        0x1000
#define         ISP24XX_FC_SP_SAN       0x2000
#define MBOX_GET_TIMEOUT_PARAMS         0x0022
#define MBOX_GET_FIRMWARE_OPTIONS       0x0028
#define MBOX_GENERATE_SYSTEM_ERROR      0x002a
#define MBOX_WRITE_SFP                  0x0030
#define MBOX_READ_SFP                   0x0031
#define MBOX_SET_TIMEOUT_PARAMS         0x0032
#define MBOX_SET_FIRMWARE_OPTIONS       0x0038
#define MBOX_GET_SET_FC_LED_CONF        0x003b
#define MBOX_RESTART_NIC_FIRMWARE       0x003d  /* FCoE only */
#define MBOX_ACCESS_CONTROL             0x003e
#define MBOX_LOOP_PORT_BYPASS           0x0040  /* FC only */
#define MBOX_LOOP_PORT_ENABLE           0x0041  /* FC only */
#define MBOX_GET_RESOURCE_COUNT         0x0042
#define MBOX_REQUEST_OFFLINE_MODE       0x0043
#define MBOX_DIAGNOSTIC_ECHO_TEST       0x0044
#define MBOX_DIAGNOSTIC_LOOPBACK        0x0045
#define MBOX_ENHANCED_GET_PDB           0x0047
#define MBOX_INIT_FIRMWARE_MULTI_ID     0x0048  /* 2400 only */
#define MBOX_GET_VP_DATABASE            0x0049  /* 2400 only */
#define MBOX_GET_VP_DATABASE_ENTRY      0x004a  /* 2400 only */
#define MBOX_GET_FCF_LIST               0x0050  /* FCoE only */
#define MBOX_GET_DCBX_PARAMETERS        0x0051  /* FCoE only */
#define MBOX_HOST_MEMORY_COPY           0x0053
#define MBOX_EXEC_COMMAND_IOCB_A64      0x0054
#define MBOX_SEND_RNID                  0x0057
#define MBOX_SET_PARAMETERS             0x0059
#define MBOX_GET_PARAMETERS             0x005a
#define MBOX_DRIVER_HEARTBEAT           0x005B  /* FC only */
#define MBOX_FW_HEARTBEAT               0x005C
#define MBOX_GET_SET_DATA_RATE          0x005D  /* >=23XX only */
#define         MBGSD_GET_RATE          0
#define         MBGSD_SET_RATE          1
#define         MBGSD_SET_RATE_NOW      2       /* 24XX only */
#define         MBGSD_1GB       0x00
#define         MBGSD_2GB       0x01
#define         MBGSD_AUTO      0x02
#define         MBGSD_4GB       0x03            /* 24XX only */
#define         MBGSD_8GB       0x04            /* 25XX only */
#define         MBGSD_16GB      0x05            /* 26XX only */
#define         MBGSD_32GB      0x06            /* 27XX only */
#define         MBGSD_64GB      0x07            /* 28XX only */
#define         MBGSD_10GB      0x13            /* 26XX only */
#define MBOX_SEND_RNFT                  0x005e
#define MBOX_INIT_FIRMWARE              0x0060
#define MBOX_GET_INIT_CONTROL_BLOCK     0x0061
#define MBOX_INIT_LIP                   0x0062
#define MBOX_GET_FC_AL_POSITION_MAP     0x0063
#define MBOX_GET_PORT_DB                0x0064
#define MBOX_CLEAR_ACA                  0x0065
#define MBOX_TARGET_RESET               0x0066
#define MBOX_CLEAR_TASK_SET             0x0067
#define MBOX_ABORT_TASK_SET             0x0068
#define MBOX_GET_FW_STATE               0x0069
#define MBOX_GET_PORT_NAME              0x006A
#define MBOX_GET_LINK_STATUS            0x006B
#define MBOX_INIT_LIP_RESET             0x006C
#define MBOX_GET_LINK_STAT_PR_DATA_CNT  0x006D
#define MBOX_SEND_SNS                   0x006E
#define MBOX_FABRIC_LOGIN               0x006F
#define MBOX_SEND_CHANGE_REQUEST        0x0070
#define MBOX_FABRIC_LOGOUT              0x0071
#define MBOX_INIT_LIP_LOGIN             0x0072
#define MBOX_GET_PORT_NODE_NAME_LIST    0x0075
#define MBOX_SET_VENDOR_ID              0x0076
#define MBOX_GET_XGMAC_STATS            0x007a
#define MBOX_GET_ID_LIST                0x007C
#define MBOX_SEND_LFA                   0x007d
#define MBOX_LUN_RESET                  0x007E

#define ISP2100_SET_PCI_PARAM           0x00ff

/*
 * Mailbox Command Complete Status Codes
 */
#define MBOX_COMMAND_COMPLETE           0x4000
#define MBOX_INVALID_COMMAND            0x4001
#define MBOX_HOST_INTERFACE_ERROR       0x4002
#define MBOX_TEST_FAILED                0x4003
#define MBOX_COMMAND_ERROR              0x4005
#define MBOX_COMMAND_PARAM_ERROR        0x4006
#define MBOX_PORT_ID_USED               0x4007
#define MBOX_LOOP_ID_USED               0x4008
#define MBOX_ALL_IDS_USED               0x4009
#define MBOX_NOT_LOGGED_IN              0x400A
#define MBOX_LINK_DOWN_ERROR            0x400B
#define MBOX_LOOPBACK_ERROR             0x400C
#define MBOX_CHECKSUM_ERROR             0x4010
#define MBOX_INVALID_PRODUCT_KEY        0x4020
/* pseudo mailbox completion codes */
#define MBOX_REGS_BUSY                  0x6000  /* registers in use */
#define MBOX_TIMEOUT                    0x6001  /* command timed out */

#define MBLOGALL                        0xffffffff
#define MBLOGNONE                       0x00000000
#define MBLOGMASK(x)                    (1 << (((x) - 1) & 0x1f))

/*
 * Asynchronous event status codes
 */
#define ASYNC_BUS_RESET                 0x8001
#define ASYNC_SYSTEM_ERROR              0x8002
#define ASYNC_RQS_XFER_ERR              0x8003
#define ASYNC_RSP_XFER_ERR              0x8004
#define ASYNC_ATIO_XFER_ERR             0x8005
#define ASYNC_TIMEOUT_RESET             0x8006
#define ASYNC_DEVICE_RESET              0x8007
#define ASYNC_EXTMSG_UNDERRUN           0x800A
#define ASYNC_SCAM_INT                  0x800B
#define ASYNC_HUNG_SCSI                 0x800C
#define ASYNC_KILLED_BUS                0x800D
#define ASYNC_BUS_TRANSIT               0x800E  /* LVD -> HVD, eg. */
#define ASYNC_LIP_OCCURRED              0x8010  /* FC only */
#define ASYNC_LOOP_UP                   0x8011
#define ASYNC_LOOP_DOWN                 0x8012
#define ASYNC_LOOP_RESET                0x8013  /* FC only */
#define ASYNC_PDB_CHANGED               0x8014
#define ASYNC_CHANGE_NOTIFY             0x8015
#define ASYNC_LIP_NOS_OLS_RECV          0x8016  /* FC only */
#define ASYNC_LIP_ERROR                 0x8017  /* FC only */
#define ASYNC_AUTO_PLOGI_RJT            0x8018
#define ASYNC_SECURITY_UPDATE           0x801B
#define ASYNC_CMD_CMPLT                 0x8020
#define ASYNC_CTIO_DONE                 0x8021
#define ASYNC_RIO32_1                   0x8021
#define ASYNC_RIO32_2                   0x8022
#define ASYNC_IP_XMIT_DONE              0x8022
#define ASYNC_IP_RECV_DONE              0x8023
#define ASYNC_IP_BROADCAST              0x8024
#define ASYNC_IP_RCVQ_LOW               0x8025
#define ASYNC_IP_RCVQ_EMPTY             0x8026
#define ASYNC_IP_RECV_DONE_ALIGNED      0x8027
#define ASYNC_ERR_LOGGING_DISABLED      0x8029
#define ASYNC_PTPMODE                   0x8030  /* FC only */
#define ASYNC_RIO16_1                   0x8031
#define ASYNC_RIO16_2                   0x8032
#define ASYNC_RIO16_3                   0x8033
#define ASYNC_RIO16_4                   0x8034
#define ASYNC_RIO16_5                   0x8035
#define ASYNC_CONNMODE                  0x8036
#define         ISP_CONN_LOOP           1
#define         ISP_CONN_PTP            2
#define         ISP_CONN_BADLIP         3
#define         ISP_CONN_FATAL          4
#define         ISP_CONN_LOOPBACK       5
#define ASYNC_P2P_INIT_ERR              0x8037
#define ASYNC_RIOZIO_STALL              0x8040  /* there's a RIO/ZIO entry that hasn't been serviced */
#define ASYNC_RIO32_2_2200              0x8042  /* same as ASYNC_RIO32_2, but for 2100/2200 */
#define ASYNC_RCV_ERR                   0x8048
/*
 * 2.01.31 2200 Only. Need Bit 13 in Mailbox 1 for Set Firmware Options
 * mailbox command to enable this.
 */
#define ASYNC_QFULL_SENT                0x8049
#define ASYNC_RJT_SENT                  0x8049  /* 24XX only */
#define ASYNC_SEL_CLASS2_P_RJT_SENT     0x804f
#define ASYNC_FW_RESTART_COMPLETE       0x8060
#define ASYNC_TEMPERATURE_ALERT         0x8070
#define ASYNC_INTER_DRIVER_COMP         0x8100  /* FCoE only */
#define ASYNC_INTER_DRIVER_NOTIFY       0x8101  /* FCoE only */
#define ASYNC_INTER_DRIVER_TIME_EXT     0x8102  /* FCoE only */
#define ASYNC_TRANSCEIVER_INSERTION     0x8130
#define ASYNC_TRANSCEIVER_REMOVAL       0x8131
#define ASYNC_NIC_FW_STATE_CHANGE       0x8200  /* FCoE only */
#define ASYNC_AUTOLOAD_FW_COMPLETE      0x8400
#define ASYNC_AUTOLOAD_FW_FAILURE       0x8401

/*
 * Firmware Options. There are a lot of them.
 *
 * IFCOPTN - ISP Fibre Channel Option Word N
 */
#define IFCOPT1_EQFQASYNC       (1 << 13)       /* enable QFULL notification */
#define IFCOPT1_EAABSRCVD       (1 << 12)
#define IFCOPT1_RJTASYNC        (1 << 11)       /* enable 8018 notification */
#define IFCOPT1_ENAPURE         (1 << 10)
#define IFCOPT1_ENA8017         (1 << 7)
#define IFCOPT1_DISGPIO67       (1 << 6)
#define IFCOPT1_LIPLOSSIMM      (1 << 5)
#define IFCOPT1_DISF7SWTCH      (1 << 4)
#define IFCOPT1_CTIO_RETRY      (1 << 3)
#define IFCOPT1_LIPASYNC        (1 << 1)
#define IFCOPT1_LIPF8           (1 << 0)

#define IFCOPT2_LOOPBACK        (1 << 1)
#define IFCOPT2_ATIO3_ONLY      (1 << 0)

#define IFCOPT3_NOPRLI          (1 << 4)        /* disable automatic sending of PRLI on local loops */
#define IFCOPT3_RNDASYNC        (1 << 1)

/*
 * All IOCB Queue entries are this size
 */
#define QENTRY_LEN                      64
#define QENTRY_MAX                      255

/*
 * Command Structure Definitions
 */

typedef struct {
        uint32_t        ds_base;
        uint32_t        ds_basehi;
        uint32_t        ds_count;
} ispds64_t;

typedef struct {
        uint8_t         rqs_entry_type;
        uint8_t         rqs_entry_count;
        uint8_t         rqs_seqno;
        uint8_t         rqs_flags;
} isphdr_t;

/* RQS Flag definitions */
#define RQSFLAG_BADTYPE         0x04
#define RQSFLAG_BADPARAM        0x08
#define RQSFLAG_BADCOUNT        0x10
#define RQSFLAG_BADORDER        0x20
#define RQSFLAG_MASK            0x3f

/* RQS entry_type definitions */
#define RQSTYPE_RESPONSE        0x03
#define RQSTYPE_MARKER          0x04
#define RQSTYPE_ATIO            0x06    /* Target Mode */
#define RQSTYPE_A64_CONT        0x0a
#define RQSTYPE_NOTIFY          0x0d    /* Target Mode */
#define RQSTYPE_NOTIFY_ACK      0x0e    /* Target Mode */
#define RQSTYPE_STATUS_CONT     0x10
#define RQSTYPE_CTIO7           0x12
#define RQSTYPE_TSK_MGMT        0x14
#define RQSTYPE_ATIO2           0x16    /* Target Mode */
#define RQSTYPE_T7RQS           0x18
#define RQSTYPE_CT_PASSTHRU     0x29
#define RQSTYPE_VP_CTRL         0x30
#define RQSTYPE_VP_MODIFY       0x31
#define RQSTYPE_RPT_ID_ACQ      0x32
#define RQSTYPE_ABORT_IO        0x33
#define RQSTYPE_MBOX            0x39
#define RQSTYPE_T6RQS           0x48
#define RQSTYPE_PUREX           0x51
#define RQSTYPE_LOGIN           0x52
#define RQSTYPE_ELS_PASSTHRU    0x53
#define RQSTYPE_ABTS_RCVD       0x54
#define RQSTYPE_ABTS_RSP        0x55

typedef struct {
        isphdr_t        mrk_header;
        uint32_t        mrk_handle;
        uint16_t        mrk_nphdl;
        uint8_t         mrk_modifier;
        uint8_t         mrk_reserved0;
        uint8_t         mrk_reserved1;
        uint8_t         mrk_vphdl;
        uint16_t        mrk_reserved2;
        uint8_t         mrk_lun[8];
        uint8_t         mrk_reserved3[40];
} isp_marker_24xx_t;

#define SYNC_DEVICE     0
#define SYNC_TARGET     1
#define SYNC_ALL        2
#define SYNC_LIP        3

/*
 * ISP24XX structures
 */
typedef struct {
        isphdr_t        req_header;
        uint32_t        req_handle;
        uint16_t        req_nphdl;
        uint16_t        req_time;
        uint16_t        req_seg_count;
        uint16_t        req_reserved;
        uint8_t         req_lun[8];
        uint8_t         req_alen_datadir;
        uint8_t         req_task_management;
        uint8_t         req_task_attribute;
        uint8_t         req_crn;
        uint8_t         req_cdb[16];
        uint32_t        req_dl;
        uint16_t        req_tidlo;
        uint8_t         req_tidhi;
        uint8_t         req_vpidx;
        ispds64_t       req_dataseg;
} ispreqt7_t;

/* Task Management Request Function */
typedef struct {
        isphdr_t        tmf_header;
        uint32_t        tmf_handle;
        uint16_t        tmf_nphdl;
        uint8_t         tmf_reserved0[2];
        uint16_t        tmf_delay;
        uint16_t        tmf_timeout;
        uint8_t         tmf_lun[8];
        uint32_t        tmf_flags;
        uint8_t         tmf_reserved1[20];
        uint16_t        tmf_tidlo;
        uint8_t         tmf_tidhi;
        uint8_t         tmf_vpidx;
        uint8_t         tmf_reserved2[12];
} isp24xx_tmf_t;

#define ISP24XX_TMF_NOSEND              0x80000000

#define ISP24XX_TMF_LUN_RESET           0x00000010
#define ISP24XX_TMF_ABORT_TASK_SET      0x00000008
#define ISP24XX_TMF_CLEAR_TASK_SET      0x00000004
#define ISP24XX_TMF_TARGET_RESET        0x00000002
#define ISP24XX_TMF_CLEAR_ACA           0x00000001

/* I/O Abort Structure */
typedef struct {
        isphdr_t        abrt_header;
        uint32_t        abrt_handle;
        uint16_t        abrt_nphdl;
        uint16_t        abrt_options;
        uint32_t        abrt_cmd_handle;
        uint16_t        abrt_queue_number;
        uint8_t         abrt_reserved[30];
        uint16_t        abrt_tidlo;
        uint8_t         abrt_tidhi;
        uint8_t         abrt_vpidx;
        uint8_t         abrt_reserved1[12];
} isp24xx_abrt_t;

#define ISP24XX_ABRT_NOSEND     0x01    /* don't actually send ABTS */
#define ISP24XX_ABRT_OKAY       0x00    /* in nphdl on return */
#define ISP24XX_ABRT_ENXIO      0x31    /* in nphdl on return */

#define ISP_CDSEG64     5
typedef struct {
        isphdr_t        req_header;
        ispds64_t       req_dataseg[ISP_CDSEG64];
} ispcontreq64_t;

/*
 * Status Continuation
 */
typedef struct {
        isphdr_t        req_header;
        uint8_t         req_sense_data[60];
} ispstatus_cont_t;

/*
 * 24XX Type 0 status
 */
typedef struct {
        isphdr_t        req_header;
        uint32_t        req_handle;
        uint16_t        req_completion_status;
        uint16_t        req_oxid;
        uint32_t        req_resid;
        uint16_t        req_reserved0;
        uint16_t        req_state_flags;
        uint16_t        req_retry_delay;        /* aka Status Qualifier */
        uint16_t        req_scsi_status;
        uint32_t        req_fcp_residual;
        uint32_t        req_sense_len;
        uint32_t        req_response_len;
        uint8_t         req_rsp_sense[28];
} isp24xx_statusreq_t;

/* 
 * For Qlogic 2X00, the high order byte of SCSI status has
 * additional meaning.
 */
#define RQCS_CR 0x1000  /* Confirmation Request */
#define RQCS_RU 0x0800  /* Residual Under */
#define RQCS_RO 0x0400  /* Residual Over */
#define RQCS_RESID      (RQCS_RU|RQCS_RO)
#define RQCS_SV 0x0200  /* Sense Length Valid */
#define RQCS_RV 0x0100  /* FCP Response Length Valid */

/*
 * CT Passthru IOCB
 */
typedef struct {
        isphdr_t        ctp_header;
        uint32_t        ctp_handle;
        uint16_t        ctp_status;
        uint16_t        ctp_nphdl;      /* n-port handle */
        uint16_t        ctp_cmd_cnt;    /* Command DSD count */
        uint8_t         ctp_vpidx;
        uint8_t         ctp_reserved0;
        uint16_t        ctp_time;
        uint16_t        ctp_reserved1;
        uint16_t        ctp_rsp_cnt;    /* Response DSD count */
        uint16_t        ctp_reserved2[5];
        uint32_t        ctp_rsp_bcnt;   /* Response byte count */
        uint32_t        ctp_cmd_bcnt;   /* Command byte count */
        ispds64_t       ctp_dataseg[2];
} isp_ct_pt_t;

/* 
 * Completion Status Codes.
 */
#define RQCS_COMPLETE                   0x0000
#define RQCS_DMA_ERROR                  0x0002
#define RQCS_TRANSPORT_ERROR            0x0003
#define RQCS_RESET_OCCURRED             0x0004
#define RQCS_ABORTED                    0x0005
#define RQCS_TIMEOUT                    0x0006
#define RQCS_DATA_OVERRUN               0x0007
#define RQCS_DRE                        0x0011  /* data reassembly error */
#define RQCS_TABORT                     0x0013  /* aborted by target */
#define RQCS_DATA_UNDERRUN              0x0015
#define RQCS_PORT_UNAVAILABLE           0x0028
#define RQCS_PORT_LOGGED_OUT            0x0029
#define RQCS_PORT_CHANGED               0x002A
#define RQCS_PORT_BUSY                  0x002B
#define RQCS_ENOMEM                     0x002C  /* f/w resource unavailable */
#define RQCS_TMO                        0x0030  /* task management overrun */

/*
 * About Firmware returns an 'attribute' word.
 */
#define ISP_FW_ATTR_CLASS2      0x0001
#define ISP_FW_ATTR_IP          0x0002
#define ISP_FW_ATTR_MULTIID     0x0004
#define ISP_FW_ATTR_SB2         0x0008
#define ISP_FW_ATTR_T10CRC      0x0010
#define ISP_FW_ATTR_VI          0x0020
#define ISP_FW_ATTR_MQ          0x0040
#define ISP_FW_ATTR_MSIX        0x0080
#define ISP_FW_ATTR_FCOE        0x0800
#define ISP_FW_ATTR_VP0         0x1000
#define ISP_FW_ATTR_EXPFW       0x2000
#define ISP_FW_ATTR_HOTFW       0x4000
#define ISP_FW_ATTR_EXTNDED     0x8000

#define ISP_FW_ATTR_H_EXTVP     0x0001
#define ISP_FW_ATTR_H_NVME_FB   0x0002  /* NVMe first burst */
#define ISP_FW_ATTR_H_VN2VN     0x0004  /* Extended login */
#define ISP_FW_ATTR_H_EXMOFF    0x0008  /* Exchange offload */
#define ISP_FW_ATTR_H_NPMOFF    0x0010
#define ISP_FW_ATTR_H_DIFCHOP   0x0040
#define ISP_FW_ATTR_H_SRIOV     0x0200
#define ISP_FW_ATTR_H_NVME      0x0400  /* FC-NVMe */
#define ISP_FW_ATTR_H_NVME_UP   0x4000  /* FC-NVMe updated */

#define ISP_FW_ATTR_E0_ASICTMP  0x0002
#define ISP_FW_ATTR_E0_ATIOMQ   0x0004
#define ISP_FW_ATTR_E0_EDIF     0x0020  /* Encryption of data in flight */
#define ISP_FW_ATTR_E0_SCM      0x1000  /* Simplified Configuration and Management */
#define ISP_FW_ATTR_E0_NVME2    0x2000  /* NVMe2 */

/*
 * This is only true for 24XX cards with this f/w attribute
 */
#define ISP_CAP_MULTI_ID(isp)   \
        (isp->isp_fwattr & ISP_FW_ATTR_MULTIID)
#define ISP_GET_VPIDX(isp, tag) \
        (ISP_CAP_MULTI_ID(isp) ? tag : 0)
#define ISP_CAP_MSIX(isp)       \
        (isp->isp_fwattr & ISP_FW_ATTR_MSIX)
#define ISP_CAP_VP0(isp)        \
        (isp->isp_fwattr & ISP_FW_ATTR_VP0)

#define ISP_FCTAPE_ENABLED(isp, chan)   \
        ((FCPARAM(isp, chan)->isp_xfwoptions & ICB2400_OPT2_FCTAPE) != 0)

/*
 * FC specific data structures
 */

/*
 * Initialization Control Block
 */

#define ICB_VERSION1    1

/* 2400 F/W options */
#define ICB2400_OPT1_BOTH_WWNS          0x00004000
#define ICB2400_OPT1_FULL_LOGIN         0x00002000
#define ICB2400_OPT1_PREV_ADDRESS       0x00000800
#define ICB2400_OPT1_SRCHDOWN           0x00000400
#define ICB2400_OPT1_NOLIP              0x00000200
#define ICB2400_OPT1_INI_DISABLE        0x00000020
#define ICB2400_OPT1_TGT_ENABLE         0x00000010
#define ICB2400_OPT1_FULL_DUPLEX        0x00000004
#define ICB2400_OPT1_FAIRNESS           0x00000002
#define ICB2400_OPT1_HARD_ADDRESS       0x00000001

#define ICB2400_OPT2_ENA_ATIOMQ         0x08000000
#define ICB2400_OPT2_ENA_IHA            0x04000000
#define ICB2400_OPT2_QOS                0x02000000
#define ICB2400_OPT2_IOCBS              0x01000000
#define ICB2400_OPT2_ENA_IHR            0x00400000
#define ICB2400_OPT2_ENA_VMS            0x00200000
#define ICB2400_OPT2_ENA_TA             0x00100000
#define ICB2400_OPT2_TPRLIC             0x00004000
#define ICB2400_OPT2_FCTAPE             0x00001000
#define ICB2400_OPT2_FCSP               0x00000800
#define ICB2400_OPT2_CLASS2_ACK0        0x00000200
#define ICB2400_OPT2_CLASS2             0x00000100
#define ICB2400_OPT2_NO_PLAY            0x00000080
#define ICB2400_OPT2_TOPO_MASK          0x00000070
#define ICB2400_OPT2_LOOP_ONLY          0x00000000
#define ICB2400_OPT2_PTP_ONLY           0x00000010
#define ICB2400_OPT2_LOOP_2_PTP         0x00000020
#define ICB2400_OPT2_TIMER_MASK         0x0000000f
#define ICB2400_OPT2_ZIO                0x00000005
#define ICB2400_OPT2_ZIO1               0x00000006

#define ICB2400_OPT3_NO_CTXDIS          0x40000000
#define ICB2400_OPT3_ENA_ETH_RESP       0x08000000
#define ICB2400_OPT3_ENA_ETH_ATIO       0x04000000
#define ICB2400_OPT3_ENA_MFCF           0x00020000
#define ICB2400_OPT3_SKIP_4GB           0x00010000
#define ICB2400_OPT3_RATE_MASK          0x0000E000
#define ICB2400_OPT3_RATE_1GB           0x00000000
#define ICB2400_OPT3_RATE_2GB           0x00002000
#define ICB2400_OPT3_RATE_AUTO          0x00004000
#define ICB2400_OPT3_RATE_4GB           0x00006000
#define ICB2400_OPT3_RATE_8GB           0x00008000
#define ICB2400_OPT3_RATE_16GB          0x0000A000
#define ICB2400_OPT3_RATE_32GB          0x0000C000
#define ICB2400_OPT3_RATE_64GB          0x0000E000
#define ICB2400_OPT3_ENA_OOF_XFRDY      0x00000200
#define ICB2400_OPT3_NO_N2N_LOGI        0x00000100
#define ICB2400_OPT3_NO_LOCAL_PLOGI     0x00000080
#define ICB2400_OPT3_ENA_OOF            0x00000040
/* note that a response size flag of zero is reserved! */
#define ICB2400_OPT3_RSPSZ_MASK         0x00000030
#define ICB2400_OPT3_RSPSZ_12           0x00000010
#define ICB2400_OPT3_RSPSZ_24           0x00000020
#define ICB2400_OPT3_RSPSZ_32           0x00000030
#define ICB2400_OPT3_SOFTID             0x00000002

#define ICB_MIN_FRMLEN          256
#define ICB_MAX_FRMLEN          2112
#define ICB_DFLT_FRMLEN         1024
#define ICB_DFLT_FRMLEN_28XX    2048
#define ICB_DFLT_RDELAY         5
#define ICB_DFLT_RCOUNT         3

#define ICB_LOGIN_TOV           10
#define ICB_LUN_ENABLE_TOV      15


/*
 * And somebody at QLogic had a great idea that you could just change
 * the structure *and* keep the version number the same as the other cards.
 */
typedef struct {
        uint16_t        icb_version;
        uint16_t        icb_reserved0;
        uint16_t        icb_maxfrmlen;
        uint16_t        icb_execthrottle;
        uint16_t        icb_xchgcnt;
        uint16_t        icb_hardaddr;
        uint8_t         icb_portname[8];
        uint8_t         icb_nodename[8];
        uint16_t        icb_rspnsin;
        uint16_t        icb_rqstout;
        uint16_t        icb_retry_count;
        uint16_t        icb_priout;
        uint16_t        icb_rsltqlen;
        uint16_t        icb_rqstqlen;
        uint16_t        icb_ldn_nols;
        uint16_t        icb_prqstqlen;
        uint16_t        icb_rqstaddr[4];
        uint16_t        icb_respaddr[4];
        uint16_t        icb_priaddr[4];
        uint16_t        icb_msixresp;
        uint16_t        icb_msixatio;
        uint16_t        icb_reserved1[2];
        uint16_t        icb_atio_in;
        uint16_t        icb_atioqlen;
        uint16_t        icb_atioqaddr[4];
        uint16_t        icb_idelaytimer;
        uint16_t        icb_logintime;
        uint32_t        icb_fwoptions1;
        uint32_t        icb_fwoptions2;
        uint32_t        icb_fwoptions3;
        uint16_t        icb_qos;
        uint16_t        icb_reserved2[3];
        uint8_t         icb_enodemac[6];
        uint16_t        icb_disctime;
        uint16_t        icb_reserved3[4];
} isp_icb_2400_t;

#define RQRSP_ADDR0015  0
#define RQRSP_ADDR1631  1
#define RQRSP_ADDR3247  2
#define RQRSP_ADDR4863  3


#define ICB_NNM0        7
#define ICB_NNM1        6
#define ICB_NNM2        5
#define ICB_NNM3        4
#define ICB_NNM4        3
#define ICB_NNM5        2
#define ICB_NNM6        1
#define ICB_NNM7        0

#define MAKE_NODE_NAME_FROM_WWN(array, wwn)     \
        array[ICB_NNM0] = (uint8_t) ((wwn >>  0) & 0xff), \
        array[ICB_NNM1] = (uint8_t) ((wwn >>  8) & 0xff), \
        array[ICB_NNM2] = (uint8_t) ((wwn >> 16) & 0xff), \
        array[ICB_NNM3] = (uint8_t) ((wwn >> 24) & 0xff), \
        array[ICB_NNM4] = (uint8_t) ((wwn >> 32) & 0xff), \
        array[ICB_NNM5] = (uint8_t) ((wwn >> 40) & 0xff), \
        array[ICB_NNM6] = (uint8_t) ((wwn >> 48) & 0xff), \
        array[ICB_NNM7] = (uint8_t) ((wwn >> 56) & 0xff)

#define MAKE_WWN_FROM_NODE_NAME(wwn, array)     \
        wwn =   ((uint64_t) array[ICB_NNM0]) | \
                ((uint64_t) array[ICB_NNM1] <<  8) | \
                ((uint64_t) array[ICB_NNM2] << 16) | \
                ((uint64_t) array[ICB_NNM3] << 24) | \
                ((uint64_t) array[ICB_NNM4] << 32) | \
                ((uint64_t) array[ICB_NNM5] << 40) | \
                ((uint64_t) array[ICB_NNM6] << 48) | \
                ((uint64_t) array[ICB_NNM7] << 56)


/*
 * For MULTI_ID firmware, this describes a
 * virtual port entity for getting status.
 */
typedef struct {
        uint16_t        vp_port_status;
        uint8_t         vp_port_options;
        uint8_t         vp_port_loopid;
        uint8_t         vp_port_portname[8];
        uint8_t         vp_port_nodename[8];
        uint16_t        vp_port_portid_lo;      /* not present when trailing icb */
        uint16_t        vp_port_portid_hi;      /* not present when trailing icb */
} vp_port_info_t;

#define ICB2400_VPOPT_ENA_SNSLOGIN      0x00000040      /* Enable SNS Login and SCR for Virtual Ports */
#define ICB2400_VPOPT_TGT_DISABLE       0x00000020      /* Target Mode Disabled */
#define ICB2400_VPOPT_INI_ENABLE        0x00000010      /* Initiator Mode Enabled */
#define ICB2400_VPOPT_ENABLED           0x00000008      /* VP Enabled */
#define ICB2400_VPOPT_NOPLAY            0x00000004      /* ID Not Acquired */
#define ICB2400_VPOPT_PREV_ADDRESS      0x00000002      /* Previously Assigned ID */
#define ICB2400_VPOPT_HARD_ADDRESS      0x00000001      /* Hard Assigned ID */

#define ICB2400_VPOPT_WRITE_SIZE        20

/*
 * For MULTI_ID firmware, we append this structure
 * to the isp_icb_2400_t above, followed by a list
 * structures that are *most* of the vp_port_info_t.
 */
typedef struct {
        uint16_t        vp_count;
        uint16_t        vp_global_options;
} isp_icb_2400_vpinfo_t;

#define ICB2400_VPINFO_OFF      0x80    /* offset from start of ICB */
#define ICB2400_VPINFO_PORT_OFF(chan)           \
    (ICB2400_VPINFO_OFF +                       \
     sizeof (isp_icb_2400_vpinfo_t) + ((chan) * ICB2400_VPOPT_WRITE_SIZE))

#define ICB2400_VPGOPT_FCA              0x01    /* Assume Clean Address bit in FLOGI ACC set (works only in static configurations) */
#define ICB2400_VPGOPT_MID_DISABLE      0x02    /* when set, connection mode2 will work with NPIV-capable switched */
#define ICB2400_VPGOPT_VP0_DECOUPLE     0x04    /* Allow VP0 decoupling if firmware supports it */
#define ICB2400_VPGOPT_SUSP_FDISK       0x10    /* Suspend FDISC for Enabled VPs */
#define ICB2400_VPGOPT_GEN_RIDA         0x20    /* Generate RIDA if FLOGI Fails */

typedef struct {
        isphdr_t        vp_ctrl_hdr;
        uint32_t        vp_ctrl_handle;
        uint16_t        vp_ctrl_index_fail;
        uint16_t        vp_ctrl_status;
        uint16_t        vp_ctrl_command;
        uint16_t        vp_ctrl_vp_count;
        uint16_t        vp_ctrl_idmap[16];
        uint16_t        vp_ctrl_reserved[7];
        uint16_t        vp_ctrl_fcf_index;
} vp_ctrl_info_t;

#define VP_CTRL_CMD_ENABLE_VP                   0x00
#define VP_CTRL_CMD_DISABLE_VP                  0x08
#define VP_CTRL_CMD_DISABLE_VP_REINIT_LINK      0x09
#define VP_CTRL_CMD_DISABLE_VP_LOGO             0x0A
#define VP_CTRL_CMD_DISABLE_VP_LOGO_ALL         0x0B

/*
 * We can use this structure for modifying either one or two VP ports after initialization
 */
typedef struct {
        isphdr_t        vp_mod_hdr;
        uint32_t        vp_mod_hdl;
        uint16_t        vp_mod_reserved0;
        uint16_t        vp_mod_status;
        uint8_t         vp_mod_cmd;
        uint8_t         vp_mod_cnt;
        uint8_t         vp_mod_idx0;
        uint8_t         vp_mod_idx1;
        struct {
                uint8_t         options;
                uint8_t         loopid;
                uint16_t        reserved1;
                uint8_t         wwpn[8];
                uint8_t         wwnn[8];
        } vp_mod_ports[2];
        uint8_t         vp_mod_reserved2[8];
} vp_modify_t;

#define VP_STS_OK       0x00
#define VP_STS_ERR      0x01
#define VP_CNT_ERR      0x02
#define VP_GEN_ERR      0x03
#define VP_IDX_ERR      0x04
#define VP_STS_BSY      0x05

#define VP_MODIFY       0x00
#define VP_MODIFY_ENA   0x01
#define VP_MODIFY_OPT   0x02
#define VP_RESUME       0x03

/*
 * Port Data Base Element
 */

#define SVC3_ROLE_MASK          0x30
#define SVC3_ROLE_SHIFT         4

#define BITS2WORD_24XX(x)       ((x)[0] << 16 | (x)[1] << 8 | (x)[2])

/*
 * Port Data Base Element- 24XX cards
 */
typedef struct {
        uint16_t        pdb_flags;
        uint8_t         pdb_curstate;
        uint8_t         pdb_laststate;
        uint8_t         pdb_hardaddr_bits[4];
        uint8_t         pdb_portid_bits[4];
#define         pdb_nxt_seqid_2400      pdb_portid_bits[3]
        uint16_t        pdb_retry_timer;
        uint16_t        pdb_handle;
        uint16_t        pdb_rcv_dsize;
        uint16_t        pdb_reserved0;
        uint16_t        pdb_prli_svc0;
        uint16_t        pdb_prli_svc3;
        uint8_t         pdb_portname[8];
        uint8_t         pdb_nodename[8];
        uint8_t         pdb_reserved1[24];
} isp_pdb_24xx_t;

#define PDB2400_TID_SUPPORTED   0x4000
#define PDB2400_FC_TAPE         0x0080
#define PDB2400_CLASS2_ACK0     0x0040
#define PDB2400_FCP_CONF        0x0020
#define PDB2400_CLASS2          0x0010
#define PDB2400_ADDR_VALID      0x0002

/*
 * For NVMe, the state is the high nibble.  For FCP, the state is the low
 * nibble.  This appears to have changed with the 9.x firmware.
 */
#define PDB2400_STATE_PLOGI_PEND        0x03
#define PDB2400_STATE_PLOGI_DONE        0x04
#define PDB2400_STATE_PRLI_PEND         0x05
#define PDB2400_STATE_LOGGED_IN         0x06
#define PDB2400_STATE_PORT_UNAVAIL      0x07
#define PDB2400_STATE_PRLO_PEND         0x09
#define PDB2400_STATE_LOGO_PEND         0x0B
#define PDB2400_STATE_FCP_MASK          0x0f
#define PDB2400_STATE_NVME_SHIFT        4

/*
 * Common elements from the above two structures that are actually useful to us.
 */
typedef struct {
        uint16_t        handle;
        uint16_t        prli_word0;
        uint16_t        prli_word3;
        uint32_t                : 8,
                        portid  : 24;
        uint8_t         portname[8];
        uint8_t         nodename[8];
} isp_pdb_t;

/*
 * Port and N-Port Handle List Element
 */
typedef struct {
        uint16_t        pnhle_port_id_lo;
        uint16_t        pnhle_port_id_hi;
        uint16_t        pnhle_handle;
        uint16_t        pnhle_reserved;
} isp_pnhle_24xx_t;

/*
 * Port Database Changed Async Event information for 24XX cards
 */
/* N-Port Handle */
#define PDB24XX_AE_GLOBAL       0xFFFF

/* Reason Codes */
#define PDB24XX_AE_OK           0x00
#define PDB24XX_AE_IMPL_LOGO_1  0x01
#define PDB24XX_AE_IMPL_LOGO_2  0x02
#define PDB24XX_AE_IMPL_LOGO_3  0x03
#define PDB24XX_AE_PLOGI_RCVD   0x04
#define PDB24XX_AE_PLOGI_RJT    0x05
#define PDB24XX_AE_PRLI_RCVD    0x06
#define PDB24XX_AE_PRLI_RJT     0x07
#define PDB24XX_AE_TPRLO        0x08
#define PDB24XX_AE_TPRLO_RJT    0x09
#define PDB24XX_AE_PRLO_RCVD    0x0a
#define PDB24XX_AE_LOGO_RCVD    0x0b
#define PDB24XX_AE_TOPO_CHG     0x0c
#define PDB24XX_AE_NPORT_CHG    0x0d
#define PDB24XX_AE_FLOGI_RJT    0x0e
#define PDB24XX_AE_BAD_FANN     0x0f
#define PDB24XX_AE_FLOGI_TIMO   0x10
#define PDB24XX_AE_ABX_LOGO     0x11
#define PDB24XX_AE_PLOGI_DONE   0x12
#define PDB24XX_AE_PRLI_DONE    0x13
#define PDB24XX_AE_OPN_1        0x14
#define PDB24XX_AE_OPN_2        0x15
#define PDB24XX_AE_TXERR        0x16
#define PDB24XX_AE_FORCED_LOGO  0x17
#define PDB24XX_AE_DISC_TIMO    0x18

/*
 * Genericized Port Login/Logout software structure
 */
typedef struct {
        uint16_t        handle;
        uint16_t        channel;
        uint32_t
                flags   : 8,
                portid  : 24;
} isp_plcmd_t;
/* the flags to use are those for PLOGX_FLG_* below */

/*
 * ISP24XX- Login/Logout Port IOCB
 */
typedef struct {
        isphdr_t        plogx_header;
        uint32_t        plogx_handle;
        uint16_t        plogx_status;
        uint16_t        plogx_nphdl;
        uint16_t        plogx_flags;
        uint16_t        plogx_vphdl;            /* low 8 bits */
        uint16_t        plogx_portlo;           /* low 16 bits */
        uint16_t        plogx_rspsz_porthi;
        struct {
                uint16_t        lo16;
                uint16_t        hi16;
        } plogx_ioparm[11];
} isp_plogx_t;

#define PLOGX_STATUS_OK         0x00
#define PLOGX_STATUS_UNAVAIL    0x28
#define PLOGX_STATUS_LOGOUT     0x29
#define PLOGX_STATUS_IOCBERR    0x31

#define PLOGX_IOCBERR_NOLINK    0x01
#define PLOGX_IOCBERR_NOIOCB    0x02
#define PLOGX_IOCBERR_NOXGHG    0x03
#define PLOGX_IOCBERR_FAILED    0x04    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_NOFABRIC  0x05
#define PLOGX_IOCBERR_NOTREADY  0x07
#define PLOGX_IOCBERR_NOLOGIN   0x09    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_NOPCB     0x0a
#define PLOGX_IOCBERR_REJECT    0x18    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_EINVAL    0x19    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_PORTUSED  0x1a    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_HNDLUSED  0x1b    /* further info in IOPARM 1 */
#define PLOGX_IOCBERR_NOHANDLE  0x1c
#define PLOGX_IOCBERR_NOFLOGI   0x1f    /* further info in IOPARM 1 */

#define PLOGX_FLG_CMD_MASK      0xf
#define PLOGX_FLG_CMD_PLOGI     0
#define PLOGX_FLG_CMD_PRLI      1
#define PLOGX_FLG_CMD_PDISC     2
#define PLOGX_FLG_CMD_LOGO      8
#define PLOGX_FLG_CMD_PRLO      9
#define PLOGX_FLG_CMD_TPRLO     10

#define PLOGX_FLG_COND_PLOGI            0x10    /* if with PLOGI */
#define PLOGX_FLG_IMPLICIT              0x10    /* if with LOGO, PRLO, TPRLO */
#define PLOGX_FLG_SKIP_PRLI             0x20    /* if with PLOGI */
#define PLOGX_FLG_IMPLICIT_LOGO_ALL     0x20    /* if with LOGO */
#define PLOGX_FLG_EXPLICIT_LOGO         0x40    /* if with LOGO */
#define PLOGX_FLG_COMMON_FEATURES       0x80    /* if with PLOGI */
#define PLOGX_FLG_FREE_NPHDL            0x80    /* if with with LOGO */

#define PLOGX_FLG_CLASS2                0x100   /* if with PLOGI */
#define PLOGX_FLG_FCP2_OVERRIDE         0x200   /* if with PRLOG, PRLI */

/*
 * Report ID Acquisistion (24XX multi-id firmware)
 */
typedef struct {
        isphdr_t        ridacq_hdr;
        uint32_t        ridacq_handle;
        uint8_t         ridacq_vp_acquired;
        uint8_t         ridacq_vp_setup;
        uint8_t         ridacq_vp_index;
        uint8_t         ridacq_vp_status;
        uint16_t        ridacq_vp_port_lo;
        uint8_t         ridacq_vp_port_hi;
        uint8_t         ridacq_format;          /* 0 or 1 */
        uint16_t        ridacq_map[8];
        uint8_t         ridacq_reserved1[32];
} isp_ridacq_t;

#define RIDACQ_STS_COMPLETE     0
#define RIDACQ_STS_UNACQUIRED   1
#define RIDACQ_STS_CHANGED      2
#define RIDACQ_STS_SNS_TIMEOUT  3
#define RIDACQ_STS_SNS_REJECTED 4
#define RIDACQ_STS_SCR_TIMEOUT  5
#define RIDACQ_STS_SCR_REJECTED 6

/*
 * Simple Name Server Data Structures
 */
#define SNS_GA_NXT      0x100
#define SNS_GPN_ID      0x112
#define SNS_GNN_ID      0x113
#define SNS_GFT_ID      0x117
#define SNS_GFF_ID      0x11F
#define SNS_GID_FT      0x171
#define SNS_GID_PT      0x1A1
#define SNS_RFT_ID      0x217
#define SNS_RSPN_ID     0x218
#define SNS_RFF_ID      0x21F
#define SNS_RSNN_NN     0x239
typedef struct {
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_data[];   /* variable data */
} sns_screq_t;  /* Subcommand Request Structure */

typedef struct {
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_cmd;
        uint16_t        snscb_reserved2;
        uint32_t        snscb_reserved3;
        uint32_t        snscb_port;
} sns_ga_nxt_req_t;
#define SNS_GA_NXT_REQ_SIZE     (sizeof (sns_ga_nxt_req_t))

typedef struct {                        /* Used for GFT_ID, GFF_ID, etc. */
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_cmd;
        uint16_t        snscb_mword_div_2;
        uint32_t        snscb_reserved3;
        uint32_t        snscb_portid;
} sns_gxx_id_req_t;
#define SNS_GXX_ID_REQ_SIZE     (sizeof (sns_gxx_id_req_t))

typedef struct {
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_cmd;
        uint16_t        snscb_mword_div_2;
        uint32_t        snscb_reserved3;
        uint32_t        snscb_fc4_type;
} sns_gid_ft_req_t;
#define SNS_GID_FT_REQ_SIZE     (sizeof (sns_gid_ft_req_t))

typedef struct {
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_cmd;
        uint16_t        snscb_mword_div_2;
        uint32_t        snscb_reserved3;
        uint8_t         snscb_port_type;
        uint8_t         snscb_domain;
        uint8_t         snscb_area;
        uint8_t         snscb_flags;
} sns_gid_pt_req_t;
#define SNS_GID_PT_REQ_SIZE     (sizeof (sns_gid_pt_req_t))

typedef struct {
        uint16_t        snscb_rblen;    /* response buffer length (words) */
        uint16_t        snscb_reserved0;
        uint16_t        snscb_addr[4];  /* response buffer address */
        uint16_t        snscb_sblen;    /* subcommand buffer length (words) */
        uint16_t        snscb_reserved1;
        uint16_t        snscb_cmd;
        uint16_t        snscb_reserved2;
        uint32_t        snscb_reserved3;
        uint32_t        snscb_port;
        uint32_t        snscb_fc4_types[8];
} sns_rft_id_req_t;
#define SNS_RFT_ID_REQ_SIZE     (sizeof (sns_rft_id_req_t))

typedef struct {
        ct_hdr_t        snscb_cthdr;
        uint8_t         snscb_port_type;
        uint8_t         snscb_port_id[3];
        uint8_t         snscb_portname[8];
        uint16_t        snscb_data[];   /* variable data */
} sns_scrsp_t;  /* Subcommand Response Structure */

typedef struct {
        ct_hdr_t        snscb_cthdr;
        uint8_t         snscb_port_type;
        uint8_t         snscb_port_id[3];
        uint8_t         snscb_portname[8];
        uint8_t         snscb_pnlen;            /* symbolic port name length */
        uint8_t         snscb_pname[255];       /* symbolic port name */
        uint8_t         snscb_nodename[8];
        uint8_t         snscb_nnlen;            /* symbolic node name length */
        uint8_t         snscb_nname[255];       /* symbolic node name */
        uint8_t         snscb_ipassoc[8];
        uint8_t         snscb_ipaddr[16];
        uint8_t         snscb_svc_class[4];
        uint8_t         snscb_fc4_types[32];
        uint8_t         snscb_fpname[8];
        uint8_t         snscb_reserved;
        uint8_t         snscb_hardaddr[3];
} sns_ga_nxt_rsp_t;     /* Subcommand Response Structure */
#define SNS_GA_NXT_RESP_SIZE    (sizeof (sns_ga_nxt_rsp_t))

typedef struct {
        ct_hdr_t        snscb_cthdr;
        uint8_t         snscb_wwn[8];
} sns_gxn_id_rsp_t;
#define SNS_GXN_ID_RESP_SIZE    (sizeof (sns_gxn_id_rsp_t))

typedef struct {
        ct_hdr_t        snscb_cthdr;
        uint32_t        snscb_fc4_types[8];
} sns_gft_id_rsp_t;
#define SNS_GFT_ID_RESP_SIZE    (sizeof (sns_gft_id_rsp_t))

typedef struct {
        ct_hdr_t        snscb_cthdr;
        uint32_t        snscb_fc4_features[32];
} sns_gff_id_rsp_t;
#define SNS_GFF_ID_RESP_SIZE    (sizeof (sns_gff_id_rsp_t))

typedef struct {                        /* Used for GID_FT, GID_PT, etc. */
        ct_hdr_t        snscb_cthdr;
        struct {
                uint8_t         control;
                uint8_t         portid[3];
        } snscb_ports[1];
} sns_gid_xx_rsp_t;
#define SNS_GID_XX_RESP_SIZE(x) ((sizeof (sns_gid_xx_rsp_t)) + ((x - 1) << 2))

/*
 * Other Misc Structures
 */

/* ELS Pass Through */
typedef struct {
        isphdr_t        els_hdr;
        uint32_t        els_handle;
        uint16_t        els_status;
        uint16_t        els_nphdl;
        uint16_t        els_xmit_dsd_count;     /* outgoing only */
        uint8_t         els_vphdl;
        uint8_t         els_sof;
        uint32_t        els_rxid;
        uint16_t        els_recv_dsd_count;     /* outgoing only */
        uint8_t         els_opcode;
        uint8_t         els_reserved1;
        uint8_t         els_did_lo;
        uint8_t         els_did_mid;
        uint8_t         els_did_hi;
        uint8_t         els_reserved2;
        uint16_t        els_reserved3;
        uint16_t        els_ctl_flags;
        union {
                struct {
                        uint32_t        _els_bytecnt;
                        uint32_t        _els_subcode1;
                        uint32_t        _els_subcode2;
                        uint8_t         _els_reserved4[20];
                } in;
                struct {
                        uint32_t        _els_recv_bytecnt;
                        uint32_t        _els_xmit_bytecnt;
                        uint32_t        _els_xmit_dsd_length;
                        uint16_t        _els_xmit_dsd_a1500;
                        uint16_t        _els_xmit_dsd_a3116;
                        uint16_t        _els_xmit_dsd_a4732;
                        uint16_t        _els_xmit_dsd_a6348;
                        uint32_t        _els_recv_dsd_length;
                        uint16_t        _els_recv_dsd_a1500;
                        uint16_t        _els_recv_dsd_a3116;
                        uint16_t        _els_recv_dsd_a4732;
                        uint16_t        _els_recv_dsd_a6348;
                } out;
        } inout;
#define els_bytecnt             inout.in._els_bytecnt
#define els_subcode1            inout.in._els_subcode1
#define els_subcode2            inout.in._els_subcode2
#define els_reserved4           inout.in._els_reserved4
#define els_recv_bytecnt        inout.out._els_recv_bytecnt
#define els_xmit_bytecnt        inout.out._els_xmit_bytecnt
#define els_xmit_dsd_length     inout.out._els_xmit_dsd_length
#define els_xmit_dsd_a1500      inout.out._els_xmit_dsd_a1500
#define els_xmit_dsd_a3116      inout.out._els_xmit_dsd_a3116
#define els_xmit_dsd_a4732      inout.out._els_xmit_dsd_a4732
#define els_xmit_dsd_a6348      inout.out._els_xmit_dsd_a6348
#define els_recv_dsd_length     inout.out._els_recv_dsd_length
#define els_recv_dsd_a1500      inout.out._els_recv_dsd_a1500
#define els_recv_dsd_a3116      inout.out._els_recv_dsd_a3116
#define els_recv_dsd_a4732      inout.out._els_recv_dsd_a4732
#define els_recv_dsd_a6348      inout.out._els_recv_dsd_a6348
} els_t;

/*
 * Target Mode related definitions
 */

/*
 * ISP24XX Immediate Notify
 */
typedef struct {
        isphdr_t        in_header;
        uint32_t        in_reserved;
        uint16_t        in_nphdl;
        uint16_t        in_reserved1;
        uint16_t        in_flags;
        uint16_t        in_srr_rxid;
        uint16_t        in_status;
        uint8_t         in_status_subcode;
        uint8_t         in_fwhandle;
        uint32_t        in_rxid;
        uint16_t        in_srr_reloff_lo;
        uint16_t        in_srr_reloff_hi;
        uint16_t        in_srr_iu;
        uint16_t        in_srr_oxid;
        /*
         * If bit 2 is set in in_flags, the N-Port and
         * handle tags are valid. If the received ELS is
         * a LOGO, then these tags contain the N Port ID
         * from the LOGO payload. If the received ELS
         * request is TPRLO, these tags contain the
         * Third Party Originator N Port ID.
         */
        uint16_t        in_nport_id_hi;
#define in_prli_options in_nport_id_hi
        uint8_t         in_nport_id_lo;
        uint8_t         in_reserved3;
        uint16_t        in_np_handle;
        uint8_t         in_reserved4[12];
        uint8_t         in_reserved5;
        uint8_t         in_vpidx;
        uint32_t        in_reserved6;
        uint16_t        in_portid_lo;
        uint8_t         in_portid_hi;
        uint8_t         in_reserved7;
        uint16_t        in_reserved8;
        uint16_t        in_oxid;
} in_fcentry_24xx_t;

#define IN24XX_FLAG_PUREX_IOCB          0x1
#define IN24XX_FLAG_GLOBAL_LOGOUT       0x2
#define IN24XX_FLAG_NPHDL_VALID         0x4
#define IN24XX_FLAG_N2N_PRLI            0x8
#define IN24XX_FLAG_PN_NN_VALID         0x10

#define IN24XX_LIP_RESET        0x0E
#define IN24XX_LINK_RESET       0x0F
#define IN24XX_PORT_LOGOUT      0x29
#define IN24XX_PORT_CHANGED     0x2A
#define IN24XX_LINK_FAILED      0x2E
#define IN24XX_SRR_RCVD         0x45
#define IN24XX_ELS_RCVD         0x46    /*
                                         * login-affectin ELS received- check
                                         * subcode for specific opcode
                                         */

/*
 * For f/w > 4.0.25, these offsets in the Immediate Notify contain
 * the WWNN/WWPN if the ELS is PLOGI, PDISC or ADISC. The WWN is in
 * Big Endian format.
 */
#define IN24XX_PRLI_WWNN_OFF    0x18
#define IN24XX_PRLI_WWPN_OFF    0x28
#define IN24XX_PLOGI_WWNN_OFF   0x20
#define IN24XX_PLOGI_WWPN_OFF   0x28

/*
 * For f/w > 4.0.25, this offset in the Immediate Notify contain
 * the WWPN if the ELS is LOGO. The WWN is in Big Endian format.
 */
#define IN24XX_LOGO_WWPN_OFF    0x28

/*
 * Immediate Notify Status Subcodes for IN24XX_PORT_LOGOUT
 */
#define IN24XX_PORT_LOGOUT_PDISC_TMO    0x00
#define IN24XX_PORT_LOGOUT_UXPR_DISC    0x01
#define IN24XX_PORT_LOGOUT_OWN_OPN      0x02
#define IN24XX_PORT_LOGOUT_OWN_OPN_SFT  0x03
#define IN24XX_PORT_LOGOUT_ABTS_TMO     0x04
#define IN24XX_PORT_LOGOUT_DISC_RJT     0x05
#define IN24XX_PORT_LOGOUT_LOGIN_NEEDED 0x06
#define IN24XX_PORT_LOGOUT_BAD_DISC     0x07
#define IN24XX_PORT_LOGOUT_LOST_ALPA    0x08
#define IN24XX_PORT_LOGOUT_XMIT_FAILURE 0x09

/*
 * Immediate Notify Status Subcodes for IN24XX_PORT_CHANGED
 */
#define IN24XX_PORT_CHANGED_BADFAN      0x00
#define IN24XX_PORT_CHANGED_TOPO_CHANGE 0x01
#define IN24XX_PORT_CHANGED_FLOGI_ACC   0x02
#define IN24XX_PORT_CHANGED_FLOGI_RJT   0x03
#define IN24XX_PORT_CHANGED_TIMEOUT     0x04
#define IN24XX_PORT_CHANGED_PORT_CHANGE 0x05

/*
 * ISP24XX Notify Acknowledge
 */
#define NA_OK           0x01    /* Notify Acknowledge Succeeded */
typedef struct {
        isphdr_t        na_header;
        uint32_t        na_handle;
        uint16_t        na_nphdl;
        uint16_t        na_reserved1;
        uint16_t        na_flags;
        uint16_t        na_srr_rxid;
        uint16_t        na_status;
        uint8_t         na_status_subcode;
        uint8_t         na_fwhandle;
        uint32_t        na_rxid;
        uint16_t        na_srr_reloff_lo;
        uint16_t        na_srr_reloff_hi;
        uint16_t        na_srr_iu;
        uint16_t        na_srr_flags;
        uint8_t         na_reserved3[18];
        uint8_t         na_reserved4;
        uint8_t         na_vpidx;
        uint8_t         na_srr_reject_vunique;
        uint8_t         na_srr_reject_explanation;
        uint8_t         na_srr_reject_code;
        uint8_t         na_reserved5;
        uint8_t         na_reserved6[6];
        uint16_t        na_oxid;
} na_fcentry_24xx_t;

/*
 * 24XX ATIO Definition
 *
 * This is *quite* different from other entry types.
 * First of all, it has its own queue it comes in on.
 *
 * Secondly, it doesn't have a normal header.
 *
 * Thirdly, it's just a passthru of the FCP CMND IU
 * which is recorded in big endian mode.
 */
typedef struct {
        uint8_t         at_type;
        uint8_t         at_count;
        /*
         * Task attribute in high four bits,
         * the rest is the FCP CMND IU Length.
         * NB: the command can extend past the
         * length for a single queue entry.
         */
        uint16_t        at_ta_len;
        uint32_t        at_rxid;
        fc_hdr_t        at_hdr;
        fcp_cmnd_iu_t   at_cmnd;
} at7_entry_t;
#define AT7_NORESRC_RXID        0xffffffff

#define CT_HBA_RESET    0xffff  /* pseudo error - command destroyed by HBA reset*/

/*
 * ISP24XX CTIO
 */
#define MAXRESPLEN_24XX 24
typedef struct {
        isphdr_t        ct_header;
        uint32_t        ct_syshandle;
        uint16_t        ct_nphdl;       /* status on returned CTIOs */
        uint16_t        ct_timeout;
        uint16_t        ct_seg_count;
        uint8_t         ct_vpidx;
        uint8_t         ct_xflags;
        uint16_t        ct_iid_lo;      /* low 16 bits of portid */
        uint8_t         ct_iid_hi;      /* hi 8 bits of portid */
        uint8_t         ct_reserved;
        uint32_t        ct_rxid;
        uint16_t        ct_senselen;    /* mode 1 only */
        uint16_t        ct_flags;
        uint32_t        ct_resid;       /* residual length */
        uint16_t        ct_oxid;
        uint16_t        ct_scsi_status; /* modes 0 && 1 only */
        union {
                struct {
                        uint32_t        reloff;
                        uint32_t        reserved0;
                        uint32_t        ct_xfrlen;
                        uint32_t        reserved1;
                        ispds64_t       ds;
                } m0;
                struct {
                        uint16_t ct_resplen;
                        uint16_t reserved;
                        uint8_t  ct_resp[MAXRESPLEN_24XX];
                } m1;
                struct {
                        uint32_t reserved0;
                        uint32_t reserved1;
                        uint32_t ct_datalen;
                        uint32_t reserved2;
                        ispds64_t ct_fcp_rsp_iudata;
                } m2;
        } rsp;
} ct7_entry_t;

/*
 * ct_flags values for CTIO7
 */
#define CT7_NO_DATA     0x0000
#define CT7_DATA_OUT    0x0001  /* *from* initiator */
#define CT7_DATA_IN     0x0002  /* *to* initiator */
#define         CT7_DATAMASK    0x3
#define CT7_DSD_ENABLE  0x0004
#define CT7_CONF_STSFD  0x0010
#define CT7_EXPLCT_CONF 0x0020
#define CT7_FLAG_MODE0  0x0000
#define CT7_FLAG_MODE1  0x0040
#define CT7_FLAG_MODE2  0x0080
#define         CT7_FLAG_MMASK  0x00C0
#define CT7_NOACK           0x0100
#define CT7_TASK_ATTR_SHIFT     9
#define CT7_CONFIRM     0x2000
#define CT7_TERMINATE   0x4000
#define CT7_SENDSTATUS  0x8000

/*
 * Type 7 CTIO status codes
 */
#define CT7_OK          0x01    /* completed without error */
#define CT7_ABORTED     0x02    /* aborted by host */
#define CT7_ERR         0x04    /* see sense data for error */
#define CT7_INVAL       0x06    /* request for disabled lun */
#define CT7_INVRXID     0x08    /* Invalid RX_ID */
#define CT7_DATA_OVER   0x09    /* Data Overrun */
#define CT7_TIMEOUT     0x0B    /* timed out */
#define CT7_RESET       0x0E    /* LIP Rset Received */
#define CT7_BUS_ERROR   0x10    /* DMA PCI Error */
#define CT7_REASSY_ERR  0x11    /* DMA reassembly error */
#define CT7_DATA_UNDER  0x15    /* Data Underrun */
#define CT7_PORTUNAVAIL 0x28    /* port not available */
#define CT7_LOGOUT      0x29    /* port logout */
#define CT7_PORTCHANGED 0x2A    /* port changed */
#define CT7_SRR         0x45    /* SRR Received */

/*
 * Other 24XX related target IOCBs
 */

/*
 * ABTS Received
 */
typedef struct {
        isphdr_t        abts_header;
        uint8_t         abts_reserved0[6];
        uint16_t        abts_nphdl;
        uint16_t        abts_reserved1;
        uint16_t        abts_sof;
        uint32_t        abts_rxid_abts;
        uint16_t        abts_did_lo;
        uint8_t         abts_did_hi;
        uint8_t         abts_r_ctl;
        uint16_t        abts_sid_lo;
        uint8_t         abts_sid_hi;
        uint8_t         abts_cs_ctl;
        uint16_t        abts_fs_ctl;
        uint8_t         abts_f_ctl;
        uint8_t         abts_type;
        uint16_t        abts_seq_cnt;
        uint8_t         abts_df_ctl;
        uint8_t         abts_seq_id;
        uint16_t        abts_rx_id;
        uint16_t        abts_ox_id;
        uint32_t        abts_param;
        uint8_t         abts_reserved2[16];
        uint32_t        abts_rxid_task;
} abts_t;

typedef struct {
        isphdr_t        abts_rsp_header;
        uint32_t        abts_rsp_handle;
        uint16_t        abts_rsp_status;
        uint16_t        abts_rsp_nphdl;
        uint16_t        abts_rsp_ctl_flags;
        uint16_t        abts_rsp_sof;
        uint32_t        abts_rsp_rxid_abts;
        uint16_t        abts_rsp_did_lo;
        uint8_t         abts_rsp_did_hi;
        uint8_t         abts_rsp_r_ctl;
        uint16_t        abts_rsp_sid_lo;
        uint8_t         abts_rsp_sid_hi;
        uint8_t         abts_rsp_cs_ctl;
        uint16_t        abts_rsp_f_ctl_lo;
        uint8_t         abts_rsp_f_ctl_hi;
        uint8_t         abts_rsp_type;
        uint16_t        abts_rsp_seq_cnt;
        uint8_t         abts_rsp_df_ctl;
        uint8_t         abts_rsp_seq_id;
        uint16_t        abts_rsp_rx_id;
        uint16_t        abts_rsp_ox_id;
        uint32_t        abts_rsp_param;
        union {
                struct {
                        uint16_t reserved;
                        uint8_t last_seq_id;
                        uint8_t seq_id_valid;
                        uint16_t aborted_rx_id;
                        uint16_t aborted_ox_id;
                        uint16_t high_seq_cnt;
                        uint16_t low_seq_cnt;
                        uint8_t reserved2[4];
                } ba_acc;
                struct {
                        uint8_t vendor_unique;
                        uint8_t explanation;
                        uint8_t reason;
                        uint8_t reserved;
                        uint8_t reserved2[12];
                } ba_rjt;
                struct {
                        uint8_t reserved[8];
                        uint32_t subcode1;
                        uint32_t subcode2;
                } rsp;
                uint8_t reserved[16];
        } abts_rsp_payload;
        uint32_t        abts_rsp_rxid_task;
} abts_rsp_t;

/* terminate this ABTS exchange */
#define ISP24XX_ABTS_RSP_TERMINATE      0x01

#define ISP24XX_ABTS_RSP_COMPLETE       0x00
#define ISP24XX_ABTS_RSP_RESET          0x04
#define ISP24XX_ABTS_RSP_ABORTED        0x05
#define ISP24XX_ABTS_RSP_TIMEOUT        0x06
#define ISP24XX_ABTS_RSP_INVXID         0x08
#define ISP24XX_ABTS_RSP_LOGOUT         0x29
#define ISP24XX_ABTS_RSP_SUBCODE        0x31

#define ISP24XX_NO_TASK                 0xffffffff

/*
 * Miscellaneous
 *
 * This is the limit of the number of dma segments we can deal with based
 * not on the size of the segment counter (which is 16 bits), but on the
 * size of the number of queue entries field (which is 8 bits).  We assume
 * one segment in the first queue entry, plus we can have 5 segments per
 * continuation entry, multiplied by maximum of continuation entries.
 */
#define ISP_NSEG64_MAX  (1 + (QENTRY_MAX - 1) * 5)

#endif  /* _ISPMBOX_H */