gdth.h

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#define DATA_IN         0x01000000L             /* data from target */
#define DATA_OUT        0x00000000L             /* data to target */

/* BMIC registers (EISA controllers) */
#define ID0REG          0x0c80                  /* board ID */
#define EINTENABREG     0x0c89                  /* interrupt enable */
#define SEMA0REG        0x0c8a                  /* command semaphore */
#define SEMA1REG        0x0c8b                  /* status semaphore */
#define LDOORREG        0x0c8d                  /* local doorbell */
#define EDENABREG       0x0c8e                  /* EISA system doorbell enab. */
#define EDOORREG        0x0c8f                  /* EISA system doorbell */
#define MAILBOXREG      0x0c90                  /* mailbox reg. (16 bytes) */
#define EISAREG         0x0cc0                  /* EISA configuration */

/* other defines */
#define LINUX_OS        8                       /* used for cache optim. */
#define SCATTER_GATHER  1                       /* s/g feature */
#define GDTH_MAXSG      32                      /* max. s/g elements */
#define SECS32          0x1f                    /* round capacity */
#define BIOS_ID_OFFS    0x10                    /* offset contr-ID in ISABIOS */
#define LOCALBOARD      0                       /* board node always 0 */
#define ASYNCINDEX      0                       /* cmd index async. event */
#define SPEZINDEX       1                       /* cmd index unknown service */
#define GDT_WR_THROUGH  0x100                   /* WRITE_THROUGH supported */


/* typedefs */
typedef u32     ulong32;
#define PACKED  __attribute__((packed))

/* screenservice message */
typedef struct {                               
    ulong32     msg_handle;                     /* message handle */
    ulong32     msg_len;                        /* size of message */
    ulong32     msg_alen;                       /* answer length */
    unchar      msg_answer;                     /* answer flag */
    unchar      msg_ext;                        /* more messages */
    unchar      msg_reserved[2];
    char        msg_text[MSGLEN+2];             /* the message text */
} PACKED gdth_msg_str;

/* IOCTL data structures */
/* SCSI drive info */
typedef struct {
    unchar      vendor[8];                      /* vendor string */
    unchar      product[16];                    /* product string */
    unchar      revision[4];                    /* revision */
    ulong32     sy_rate;                        /* current rate for sync. tr. */
    ulong32     sy_max_rate;                    /* max. rate for sync. tr. */
    ulong32     no_ldrive;                      /* belongs to this logical drv.*/
    ulong32     blkcnt;                         /* number of blocks */
    ushort      blksize;                        /* size of block in bytes */
    unchar      available;                      /* flag: access is available */
    unchar      init;                           /* medium is initialized */
    unchar      devtype;                        /* SCSI devicetype */
    unchar      rm_medium;                      /* medium is removable */
    unchar      wp_medium;                      /* medium is write protected */
    unchar      ansi;                           /* SCSI I/II or III? */
    unchar      protocol;                       /* same as ansi */
    unchar      sync;                           /* flag: sync. transfer enab. */
    unchar      disc;                           /* flag: disconnect enabled */
    unchar      queueing;                       /* flag: command queing enab. */
    unchar      cached;                         /* flag: caching enabled */
    unchar      target_id;                      /* target ID of device */
    unchar      lun;                            /* LUN id of device */
    unchar      orphan;                         /* flag: drive fragment */
    ulong32     last_error;                     /* sense key or drive state */
    ulong32     last_result;                    /* result of last command */
    ulong32     check_errors;                   /* err. in last surface check */
    unchar      percent;                        /* progress for surface check */
    unchar      last_check;                     /* IOCTRL operation */
    unchar      res[2];
    ulong32     flags;                          /* from 1.19/2.19: raw reserv.*/
    unchar      multi_bus;                      /* multi bus dev? (fibre ch.) */
    unchar      mb_status;                      /* status: available? */
    unchar      res2[2];
    unchar      mb_alt_status;                  /* status on second bus */
    unchar      mb_alt_bid;                     /* number of second bus */
    unchar      mb_alt_tid;                     /* target id on second bus */
    unchar      res3;
    unchar      fc_flag;                        /* from 1.22/2.22: info valid?*/
    unchar      res4;
    ushort      fc_frame_size;                  /* frame size (bytes) */
    char        wwn[8];                         /* world wide name */
} PACKED gdth_diskinfo_str;

/* get SCSI channel count  */
typedef struct {
    ulong32     channel_no;                     /* number of channel */
    ulong32     drive_cnt;                      /* drive count */
    unchar      siop_id;                        /* SCSI processor ID */
    unchar      siop_state;                     /* SCSI processor state */ 
} PACKED gdth_getch_str;

/* get SCSI drive numbers */
typedef struct {
    ulong32     sc_no;                          /* SCSI channel */
    ulong32     sc_cnt;                         /* sc_list[] elements */
    ulong32     sc_list[MAXID];                 /* minor device numbers */
} PACKED gdth_drlist_str;

/* get grown/primary defect count */
typedef struct {
    unchar      sddc_type;                      /* 0x08: grown, 0x10: prim. */
    unchar      sddc_format;                    /* list entry format */
    unchar      sddc_len;                       /* list entry length */
    unchar      sddc_res;
    ulong32     sddc_cnt;                       /* entry count */
} PACKED gdth_defcnt_str;

/* disk statistics */
typedef struct {
    ulong32     bid;                            /* SCSI channel */
    ulong32     first;                          /* first SCSI disk */
    ulong32     entries;                        /* number of elements */
    ulong32     count;                          /* (R) number of init. el. */
    ulong32     mon_time;                       /* time stamp */
    struct {
        unchar  tid;                            /* target ID */
        unchar  lun;                            /* LUN */
        unchar  res[2];
        ulong32 blk_size;                       /* block size in bytes */
        ulong32 rd_count;                       /* bytes read */
        ulong32 wr_count;                       /* bytes written */
        ulong32 rd_blk_count;                   /* blocks read */
        ulong32 wr_blk_count;                   /* blocks written */
        ulong32 retries;                        /* retries */
        ulong32 reassigns;                      /* reassigns */
    } PACKED list[1];
} PACKED gdth_dskstat_str;

/* IO channel header */
typedef struct {
    ulong32     version;                        /* version (-1UL: newest) */
    unchar      list_entries;                   /* list entry count */
    unchar      first_chan;                     /* first channel number */
    unchar      last_chan;                      /* last channel number */
    unchar      chan_count;                     /* (R) channel count */
    ulong32     list_offset;                    /* offset of list[0] */
} PACKED gdth_iochan_header;

/* get IO channel description */
typedef struct {
    gdth_iochan_header  hdr;
    struct {
        ulong32         address;                /* channel address */
        unchar          type;                   /* type (SCSI, FCAL) */
        unchar          local_no;               /* local number */
        ushort          features;               /* channel features */
    } PACKED list[MAXBUS];
} PACKED gdth_iochan_str;

/* get raw IO channel description */
typedef struct {
    gdth_iochan_header  hdr;
    struct {
        unchar      proc_id;                    /* processor id */
        unchar      proc_defect;                /* defect ? */
        unchar      reserved[2];
    } PACKED list[MAXBUS];
} PACKED gdth_raw_iochan_str;

/* array drive component */
typedef struct {
    ulong32     al_controller;                  /* controller ID */
    unchar      al_cache_drive;                 /* cache drive number */
    unchar      al_status;                      /* cache drive state */
    unchar      al_res[2];     
} PACKED gdth_arraycomp_str;

/* array drive information */
typedef struct {
    unchar      ai_type;                        /* array type (RAID0,4,5) */
    unchar      ai_cache_drive_cnt;             /* active cachedrives */
    unchar      ai_state;                       /* array drive state */
    unchar      ai_master_cd;                   /* master cachedrive */
    ulong32     ai_master_controller;           /* ID of master controller */
    ulong32     ai_size;                        /* user capacity [sectors] */
    ulong32     ai_striping_size;               /* striping size [sectors] */
    ulong32     ai_secsize;                     /* sector size [bytes] */
    ulong32     ai_err_info;                    /* failed cache drive */
    unchar      ai_name[8];                     /* name of the array drive */
    unchar      ai_controller_cnt;              /* number of controllers */
    unchar      ai_removable;                   /* flag: removable */
    unchar      ai_write_protected;             /* flag: write protected */
    unchar      ai_devtype;                     /* type: always direct access */
    gdth_arraycomp_str  ai_drives[35];          /* drive components: */
    unchar      ai_drive_entries;               /* number of drive components */
    unchar      ai_protected;                   /* protection flag */
    unchar      ai_verify_state;                /* state of a parity verify */
    unchar      ai_ext_state;                   /* extended array drive state */
    unchar      ai_expand_state;                /* array expand state (>=2.18)*/
    unchar      ai_reserved[3];
} PACKED gdth_arrayinf_str;

/* get array drive list */
typedef struct {
    ulong32     controller_no;                  /* controller no. */
    unchar      cd_handle;                      /* master cachedrive */
    unchar      is_arrayd;                      /* Flag: is array drive? */
    unchar      is_master;                      /* Flag: is array master? */
    unchar      is_parity;                      /* Flag: is parity drive? */
    unchar      is_hotfix;                      /* Flag: is hotfix drive? */
    unchar      res[3];
} PACKED gdth_arraylist_str;

/* cache info/config IOCTL */
typedef struct {
    ulong32     version;                        /* firmware version */
    ushort      state;                          /* cache state (on/off) */
    ushort      strategy;                       /* cache strategy */
    ushort      write_back;                     /* write back state (on/off) */
    ushort      block_size;                     /* cache block size */
} PACKED gdth_cpar_str;

typedef struct {
    ulong32     csize;                          /* cache size */
    ulong32     read_cnt;                       /* read/write counter */
    ulong32     write_cnt;
    ulong32     tr_hits;                        /* hits */
    ulong32     sec_hits;
    ulong32     sec_miss;                       /* misses */
} PACKED gdth_cstat_str;

typedef struct {
    gdth_cpar_str   cpar;
    gdth_cstat_str  cstat;
} PACKED gdth_cinfo_str;

/* cache drive info */
typedef struct {
    unchar      cd_name[8];                     /* cache drive name */
    ulong32     cd_devtype;                     /* SCSI devicetype */
    ulong32     cd_ldcnt;                       /* number of log. drives */
    ulong32     cd_last_error;                  /* last error */
    unchar      cd_initialized;                 /* drive is initialized */
    unchar      cd_removable;                   /* media is removable */
    unchar      cd_write_protected;             /* write protected */
    unchar      cd_flags;                       /* Pool Hot Fix? */
    ulong32     ld_blkcnt;                      /* number of blocks */
    ulong32     ld_blksize;                     /* blocksize */
    ulong32     ld_dcnt;                        /* number of disks */
    ulong32     ld_slave;                       /* log. drive index */
    ulong32     ld_dtype;                       /* type of logical drive */
    ulong32     ld_last_error;                  /* last error */
    unchar      ld_name[8];                     /* log. drive name */
    unchar      ld_error;                       /* error */
} PACKED gdth_cdrinfo_str;

/* board features */
typedef struct {
    unchar      chaining;                       /* Chaining supported */