ips.h

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   #define IPS_SECS_DAY                 86400
   #define IPS_DAYS_NORMAL_YEAR         365
   #define IPS_DAYS_LEAP_YEAR           366
   #define IPS_EPOCH_YEAR               1970

   /*
    * Scsi_Host Template
    */
#if LINUX_VERSION_CODE < LinuxVersionCode(2,3,27)
 #define IPS {                            \
    next : NULL,                          \
    module : NULL,                        \
    proc_info : NULL,                     \
    proc_dir : NULL,                      \
    name : NULL,                          \
    detect : ips_detect,                  \
    release : ips_release,                \
    info : ips_info,                      \
    command : NULL,                       \
    queuecommand : ips_queue,             \
    eh_strategy_handler : NULL,           \
    eh_abort_handler : ips_eh_abort,      \
    eh_device_reset_handler : NULL,       \
    eh_bus_reset_handler : NULL,          \
    eh_host_reset_handler : ips_eh_reset, \
    abort : NULL,                         \
    reset : NULL,                         \
    slave_attach : NULL,                  \
    bios_param : ips_biosparam,           \
    can_queue : 0,                        \
    this_id: -1,                          \
    sg_tablesize : IPS_MAX_SG,            \
    cmd_per_lun: 16,                      \
    present : 0,                          \
    unchecked_isa_dma : 0,                \
    use_clustering : ENABLE_CLUSTERING,   \
    use_new_eh_code : 1                   \
}
#else
 #define IPS {                            \
    next : NULL,                          \
    module : NULL,                        \
    proc_info : NULL,                     \
    name : NULL,                          \
    detect : ips_detect,                  \
    release : ips_release,                \
    info : ips_info,                      \
    command : NULL,                       \
    queuecommand : ips_queue,             \
    eh_strategy_handler : NULL,           \
    eh_abort_handler : ips_eh_abort,      \
    eh_device_reset_handler : NULL,       \
    eh_bus_reset_handler : NULL,          \
    eh_host_reset_handler : ips_eh_reset, \
    abort : NULL,                         \
    reset : NULL,                         \
    slave_attach : NULL,                  \
    bios_param : ips_biosparam,           \
    can_queue : 0,                        \
    this_id: -1,                          \
    sg_tablesize : IPS_MAX_SG,            \
    cmd_per_lun: 16,                      \
    present : 0,                          \
    unchecked_isa_dma : 0,                \
    use_clustering : ENABLE_CLUSTERING,   \
    use_new_eh_code : 1                   \
}
#endif

/*
 * IBM PCI Raid Command Formats
 */
typedef struct {
   u8        op_code;
   u8        command_id;
   u8        log_drv;
   u8        sg_count;
   u32       lba;
   u32       sg_addr;
   u16       sector_count;
   u16       reserved;
   u32       ccsar;
   u32       cccr;
} IPS_IO_CMD, *PIPS_IO_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u16       reserved;
   u32       reserved2;
   u32       buffer_addr;
   u32       reserved3;
   u32       ccsar;
   u32       cccr;
} IPS_LD_CMD, *PIPS_LD_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        reserved;
   u8        reserved2;
   u32       reserved3;
   u32       buffer_addr;
   u32       reserved4;
} IPS_IOCTL_CMD, *PIPS_IOCTL_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u16       reserved;
   u32       reserved2;
   u32       dcdb_address;
   u32       reserved3;
   u32       ccsar;
   u32       cccr;
} IPS_DCDB_CMD, *PIPS_DCDB_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        channel;
   u8        source_target;
   u32       reserved;
   u32       reserved2;
   u32       reserved3;
   u32       ccsar;
   u32       cccr;
} IPS_CS_CMD, *PIPS_CS_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        log_drv;
   u8        control;
   u32       reserved;
   u32       reserved2;
   u32       reserved3;
   u32       ccsar;
   u32       cccr;
} IPS_US_CMD, *PIPS_US_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        reserved;
   u8        state;
   u32       reserved2;
   u32       reserved3;
   u32       reserved4;
   u32       ccsar;
   u32       cccr;
} IPS_FC_CMD, *PIPS_FC_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        reserved;
   u8        desc;
   u32       reserved2;
   u32       buffer_addr;
   u32       reserved3;
   u32       ccsar;
   u32       cccr;
} IPS_STATUS_CMD, *PIPS_STATUS_CMD;

typedef struct {
   u8        op_code;
   u8        command_id;
   u8        page;
   u8        write;
   u32       reserved;
   u32       buffer_addr;
   u32       reserved2;
   u32       ccsar;
   u32       cccr;
} IPS_NVRAM_CMD, *PIPS_NVRAM_CMD;

typedef struct {
   u8     op_code;
   u8     command_id;
   u8     reset_count;
   u8     reset_type;
   u8     second;
   u8     minute;
   u8     hour;
   u8     day;
   u8     reserved1[4];
   u8     month;
   u8     yearH;
   u8     yearL;
   u8     reserved2;
} IPS_FFDC_CMD, *PIPS_FFDC_CMD;

typedef union {
   IPS_IO_CMD        basic_io;
   IPS_LD_CMD        logical_info;
   IPS_IOCTL_CMD     ioctl_info;
   IPS_DCDB_CMD      dcdb;
   IPS_CS_CMD        config_sync;
   IPS_US_CMD        unlock_stripe;
   IPS_FC_CMD        flush_cache;
   IPS_STATUS_CMD    status;
   IPS_NVRAM_CMD     nvram;
   IPS_FFDC_CMD      ffdc;
} IPS_HOST_COMMAND, *PIPS_HOST_COMMAND;

typedef struct {
   u8         logical_id;
   u8         reserved;
   u8         raid_level;
   u8         state;
   u32        sector_count;
} IPS_DRIVE_INFO, *PIPS_DRIVE_INFO;

typedef struct {
   u8             no_of_log_drive;
   u8             reserved[3];
   IPS_DRIVE_INFO drive_info[IPS_MAX_LD];
} IPS_LD_INFO, *PIPS_LD_INFO;

typedef struct {
   u8         device_address;
   u8         cmd_attribute;
   u16        transfer_length;
   u32        buffer_pointer;
   u8         cdb_length;
   u8         sense_length;
   u8         sg_count;
   u8         reserved;
   u8         scsi_cdb[12];
   u8         sense_info[64];
   u8         scsi_status;
   u8         reserved2[3];
} IPS_DCDB_TABLE, *PIPS_DCDB_TABLE;

typedef union {
   struct {
      volatile u8  reserved;
      volatile u8  command_id;
      volatile u8  basic_status;
      volatile u8  extended_status;
   } fields;

   volatile u32    value;
} IPS_STATUS, *PIPS_STATUS;

typedef struct {
   IPS_STATUS           status[IPS_MAX_CMDS + 1];
   volatile PIPS_STATUS p_status_start;
   volatile PIPS_STATUS p_status_end;
   volatile PIPS_STATUS p_status_tail;
   volatile u32         hw_status_start;
   volatile u32         hw_status_tail;
   IPS_LD_INFO          logical_drive_info;
} IPS_ADAPTER, *PIPS_ADAPTER;

typedef struct {
   u8        ucLogDriveCount;
   u8        ucMiscFlag;
   u8        ucSLTFlag;
   u8        ucBSTFlag;
   u8        ucPwrChgCnt;
   u8        ucWrongAdrCnt;
   u8        ucUnidentCnt;
   u8        ucNVramDevChgCnt;
   u8        CodeBlkVersion[8];
   u8        BootBlkVersion[8];
   u32       ulDriveSize[IPS_MAX_LD];
   u8        ucConcurrentCmdCount;
   u8        ucMaxPhysicalDevices;
   u16       usFlashRepgmCount;
   u8        ucDefunctDiskCount;
   u8        ucRebuildFlag;
   u8        ucOfflineLogDrvCount;
   u8        ucCriticalDrvCount;
   u16       usConfigUpdateCount;
   u8        ucBlkFlag;
   u8        reserved;
   u16       usAddrDeadDisk[IPS_MAX_CHANNELS * IPS_MAX_TARGETS];
} IPS_ENQ, *PIPS_ENQ;

typedef struct {
   u8        ucInitiator;
   u8        ucParameters;
   u8        ucMiscFlag;
   u8        ucState;
   u32       ulBlockCount;
   u8        ucDeviceId[28];
} IPS_DEVSTATE, *PIPS_DEVSTATE;

typedef struct {
   u8        ucChn;
   u8        ucTgt;
   u16       ucReserved;
   u32       ulStartSect;
   u32       ulNoOfSects;
} IPS_CHUNK, *PIPS_CHUNK;

typedef struct {
   u16       ucUserField;
   u8        ucState;
   u8        ucRaidCacheParam;
   u8        ucNoOfChunkUnits;
   u8        ucStripeSize;
   u8        ucParams;
   u8        ucReserved;
   u32       ulLogDrvSize;
   IPS_CHUNK chunk[IPS_MAX_CHUNKS];
} IPS_LD, *PIPS_LD;

typedef struct {
   u8        board_disc[8];
   u8        processor[8];
   u8        ucNoChanType;
   u8        ucNoHostIntType;
   u8        ucCompression;
   u8        ucNvramType;
   u32       ulNvramSize;
} IPS_HARDWARE, *PIPS_HARDWARE;

typedef struct {
   u8             ucLogDriveCount;
   u8             ucDateD;
   u8             ucDateM;
   u8             ucDateY;
   u8             init_id[4];
   u8             host_id[12];
   u8             time_sign[8];

   struct {
      u32         usCfgDrvUpdateCnt:16;
      u32         ConcurDrvStartCnt:4;
      u32         StartupDelay:4;
      u32         auto_rearrange:1;
      u32         cd_boot:1;
      u32         cluster:1;
      u32         reserved:5;
   } UserOpt;

   u16            user_field;
   u8             ucRebuildRate;
   u8             ucReserve;
   IPS_HARDWARE   hardware_disc;
   IPS_LD         logical_drive[IPS_MAX_LD];
   IPS_DEVSTATE   dev[IPS_MAX_CHANNELS][IPS_MAX_TARGETS+1];
   u8             reserved[512];