drivers/scsi/gdth_ioctl.h

   1 #ifndef _GDTH_IOCTL_H
   2 #define _GDTH_IOCTL_H
   3
   4 /* gdth_ioctl.h
   5  * $Id: gdth_ioctl.h,v 1.14 2004/02/19 15:43:15 achim Exp $
   6  */
   7
   8 /* IOCTLs */
   9 #define GDTIOCTL_MASK       ('J'<<8)
  10 #define GDTIOCTL_GENERAL    (GDTIOCTL_MASK | 0) /* general IOCTL */
  11 #define GDTIOCTL_DRVERS     (GDTIOCTL_MASK | 1) /* get driver version */
  12 #define GDTIOCTL_CTRTYPE    (GDTIOCTL_MASK | 2) /* get controller type */
  13 #define GDTIOCTL_OSVERS     (GDTIOCTL_MASK | 3) /* get OS version */
  14 #define GDTIOCTL_HDRLIST    (GDTIOCTL_MASK | 4) /* get host drive list */
  15 #define GDTIOCTL_CTRCNT     (GDTIOCTL_MASK | 5) /* get controller count */
  16 #define GDTIOCTL_LOCKDRV    (GDTIOCTL_MASK | 6) /* lock host drive */
  17 #define GDTIOCTL_LOCKCHN    (GDTIOCTL_MASK | 7) /* lock channel */
  18 #define GDTIOCTL_EVENT      (GDTIOCTL_MASK | 8) /* read controller events */
  19 #define GDTIOCTL_SCSI       (GDTIOCTL_MASK | 9) /* SCSI command */
  20 #define GDTIOCTL_RESET_BUS  (GDTIOCTL_MASK |10) /* reset SCSI bus */
  21 #define GDTIOCTL_RESCAN     (GDTIOCTL_MASK |11) /* rescan host drives */
  22 #define GDTIOCTL_RESET_DRV  (GDTIOCTL_MASK |12) /* reset (remote) drv. res. */
  23
  24 #define GDTIOCTL_MAGIC  0xaffe0004
  25 #define EVENT_SIZE      294
  26 #define GDTH_MAXSG      32                      /* max. s/g elements */
  27
  28 #define MAX_LDRIVES     255                     /* max. log. drive count */
  29 #ifdef GDTH_IOCTL_PROC
  30 #define MAX_HDRIVES     100                     /* max. host drive count */
  31 #else
  32 #define MAX_HDRIVES     MAX_LDRIVES             /* max. host drive count */
  33 #endif
  34
  35 /* scatter/gather element */
  36 typedef struct {
  37     u32     sg_ptr;                         /* address */
  38     u32     sg_len;                         /* length */
  39 } __attribute__((packed)) gdth_sg_str;
  40
  41 /* scatter/gather element - 64bit addresses */
  42 typedef struct {
  43     u64     sg_ptr;                         /* address */
  44     u32     sg_len;                         /* length */
  45 } __attribute__((packed)) gdth_sg64_str;
  46
  47 /* command structure */
  48 typedef struct {
  49     u32     BoardNode;                      /* board node (always 0) */
  50     u32     CommandIndex;                   /* command number */
  51     u16      OpCode;                         /* the command (READ,..) */
  52     union {
  53         struct {
  54             u16      DeviceNo;               /* number of cache drive */
  55             u32     BlockNo;                /* block number */
  56             u32     BlockCnt;               /* block count */
  57             u32     DestAddr;               /* dest. addr. (if s/g: -1) */
  58             u32     sg_canz;                /* s/g element count */
  59             gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
  60         } __attribute__((packed)) cache;                         /* cache service cmd. str. */
  61         struct {
  62             u16      DeviceNo;               /* number of cache drive */
  63             u64     BlockNo;                /* block number */
  64             u32     BlockCnt;               /* block count */
  65             u64     DestAddr;               /* dest. addr. (if s/g: -1) */
  66             u32     sg_canz;                /* s/g element count */
  67             gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
  68         } __attribute__((packed)) cache64;                       /* cache service cmd. str. */
  69         struct {
  70             u16      param_size;             /* size of p_param buffer */
  71             u32     subfunc;                /* IOCTL function */
  72             u32     channel;                /* device */
  73             u64     p_param;                /* buffer */
  74         } __attribute__((packed)) ioctl;                         /* IOCTL command structure */
  75         struct {
  76             u16      reserved;
  77             union {
  78                 struct {
  79                     u32  msg_handle;        /* message handle */
  80                     u64  msg_addr;          /* message buffer address */
  81                 } __attribute__((packed)) msg;
  82                 u8       data[12];          /* buffer for rtc data, ... */
  83             } su;
  84         } __attribute__((packed)) screen;                        /* screen service cmd. str. */
  85         struct {
  86             u16      reserved;
  87             u32     direction;              /* data direction */
  88             u32     mdisc_time;             /* disc. time (0: no timeout)*/
  89             u32     mcon_time;              /* connect time(0: no to.) */
  90             u32     sdata;                  /* dest. addr. (if s/g: -1) */
  91             u32     sdlen;                  /* data length (bytes) */
  92             u32     clen;                   /* SCSI cmd. length(6,10,12) */
  93             u8      cmd[12];                /* SCSI command */
  94             u8      target;                 /* target ID */
  95             u8      lun;                    /* LUN */
  96             u8      bus;                    /* SCSI bus number */
  97             u8      priority;               /* only 0 used */
  98             u32     sense_len;              /* sense data length */
  99             u32     sense_data;             /* sense data addr. */
 100             u32     link_p;                 /* linked cmds (not supp.) */
 101             u32     sg_ranz;                /* s/g element count */
 102             gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
 103         } __attribute__((packed)) raw;                           /* raw service cmd. struct. */
 104         struct {
 105             u16      reserved;
 106             u32     direction;              /* data direction */
 107             u32     mdisc_time;             /* disc. time (0: no timeout)*/
 108             u32     mcon_time;              /* connect time(0: no to.) */
 109             u64     sdata;                  /* dest. addr. (if s/g: -1) */
 110             u32     sdlen;                  /* data length (bytes) */
 111             u32     clen;                   /* SCSI cmd. length(6,..,16) */
 112             u8      cmd[16];                /* SCSI command */
 113             u8      target;                 /* target ID */
 114             u8      lun;                    /* LUN */
 115             u8      bus;                    /* SCSI bus number */
 116             u8      priority;               /* only 0 used */
 117             u32     sense_len;              /* sense data length */
 118             u64     sense_data;             /* sense data addr. */
 119             u32     sg_ranz;                /* s/g element count */
 120             gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
 121         } __attribute__((packed)) raw64;                         /* raw service cmd. struct. */
 122     } u;
 123     /* additional variables */
 124     u8      Service;                        /* controller service */
 125     u8      reserved;
 126     u16      Status;                         /* command result */
 127     u32     Info;                           /* additional information */
 128     void        *RequestBuffer;                 /* request buffer */
 129 } __attribute__((packed)) gdth_cmd_str;
 130
 131 /* controller event structure */
 132 #define ES_ASYNC    1
 133 #define ES_DRIVER   2
 134 #define ES_TEST     3
 135 #define ES_SYNC     4
 136 typedef struct {
 137     u16                  size;               /* size of structure */
 138     union {
 139         char                stream[16];
 140         struct {
 141             u16          ionode;
 142             u16          service;
 143             u32         index;
 144         } __attribute__((packed)) driver;
 145         struct {
 146             u16          ionode;
 147             u16          service;
 148             u16          status;
 149             u32         info;
 150             u8          scsi_coord[3];
 151         } __attribute__((packed)) async;
 152         struct {
 153             u16          ionode;
 154             u16          service;
 155             u16          status;
 156             u32         info;
 157             u16          hostdrive;
 158             u8          scsi_coord[3];
 159             u8          sense_key;
 160         } __attribute__((packed)) sync;
 161         struct {
 162             u32         l1, l2, l3, l4;
 163         } __attribute__((packed)) test;
 164     } eu;
 165     u32                 severity;
 166     u8                  event_string[256];
 167 } __attribute__((packed)) gdth_evt_data;
 168
 169 typedef struct {
 170     u32         first_stamp;
 171     u32         last_stamp;
 172     u16          same_count;
 173     u16          event_source;
 174     u16          event_idx;
 175     u8          application;
 176     u8          reserved;
 177     gdth_evt_data   event_data;
 178 } __attribute__((packed)) gdth_evt_str;
 179
 180
 181 #ifdef GDTH_IOCTL_PROC
 182 /* IOCTL structure (write) */
 183 typedef struct {
 184     u32                 magic;              /* IOCTL magic */
 185     u16                  ioctl;              /* IOCTL */
 186     u16                  ionode;             /* controller number */
 187     u16                  service;            /* controller service */
 188     u16                  timeout;            /* timeout */
 189     union {
 190         struct {
 191             u8          command[512];       /* controller command */
 192             u8          data[1];            /* add. data */
 193         } general;
 194         struct {
 195             u8          lock;               /* lock/unlock */
 196             u8          drive_cnt;          /* drive count */
 197             u16          drives[MAX_HDRIVES];/* drives */
 198         } lockdrv;
 199         struct {
 200             u8          lock;               /* lock/unlock */
 201             u8          channel;            /* channel */
 202         } lockchn;
 203         struct {
 204             int             erase;              /* erase event ? */
 205             int             handle;
 206             u8          evt[EVENT_SIZE];    /* event structure */
 207         } event;
 208         struct {
 209             u8          bus;                /* SCSI bus */
 210             u8          target;             /* target ID */
 211             u8          lun;                /* LUN */
 212             u8          cmd_len;            /* command length */
 213             u8          cmd[12];            /* SCSI command */
 214         } scsi;
 215         struct {
 216             u16          hdr_no;             /* host drive number */
 217             u8          flag;               /* old meth./add/remove */
 218         } rescan;
 219     } iu;
 220 } gdth_iowr_str;
 221
 222 /* IOCTL structure (read) */
 223 typedef struct {
 224     u32                 size;               /* buffer size */
 225     u32                 status;             /* IOCTL error code */
 226     union {
 227         struct {
 228             u8          data[1];            /* data */
 229         } general;
 230         struct {
 231             u16          version;            /* driver version */
 232         } drvers;
 233         struct {
 234             u8          type;               /* controller type */
 235             u16          info;               /* slot etc. */
 236             u16          oem_id;             /* OEM ID */
 237             u16          bios_ver;           /* not used */
 238             u16          access;             /* not used */
 239             u16          ext_type;           /* extended type */
 240             u16          device_id;          /* device ID */
 241             u16          sub_device_id;      /* sub device ID */
 242         } ctrtype;
 243         struct {
 244             u8          version;            /* OS version */
 245             u8          subversion;         /* OS subversion */
 246             u16          revision;           /* revision */
 247         } osvers;
 248         struct {
 249             u16          count;              /* controller count */
 250         } ctrcnt;
 251         struct {
 252             int             handle;
 253             u8          evt[EVENT_SIZE];    /* event structure */
 254         } event;
 255         struct {
 256             u8          bus;                /* SCSI bus, 0xff: invalid */
 257             u8          target;             /* target ID */
 258             u8          lun;                /* LUN */
 259             u8          cluster_type;       /* cluster properties */
 260         } hdr_list[MAX_HDRIVES];                /* index is host drive number */
 261     } iu;
 262 } gdth_iord_str;
 263 #endif
 264
 265 /* GDTIOCTL_GENERAL */
 266 typedef struct {
 267     u16 ionode;                              /* controller number */
 268     u16 timeout;                             /* timeout */
 269     u32 info;                               /* error info */
 270     u16 status;                              /* status */
 271     unsigned long data_len;                             /* data buffer size */
 272     unsigned long sense_len;                            /* sense buffer size */
 273     gdth_cmd_str command;                       /* command */
 274 } gdth_ioctl_general;
 275
 276 /* GDTIOCTL_LOCKDRV */
 277 typedef struct {
 278     u16 ionode;                              /* controller number */
 279     u8 lock;                                /* lock/unlock */
 280     u8 drive_cnt;                           /* drive count */
 281     u16 drives[MAX_HDRIVES];                 /* drives */
 282 } gdth_ioctl_lockdrv;
 283
 284 /* GDTIOCTL_LOCKCHN */
 285 typedef struct {
 286     u16 ionode;                              /* controller number */
 287     u8 lock;                                /* lock/unlock */
 288     u8 channel;                             /* channel */
 289 } gdth_ioctl_lockchn;
 290
 291 /* GDTIOCTL_OSVERS */
 292 typedef struct {
 293     u8 version;                             /* OS version */
 294     u8 subversion;                          /* OS subversion */
 295     u16 revision;                            /* revision */
 296 } gdth_ioctl_osvers;
 297
 298 /* GDTIOCTL_CTRTYPE */
 299 typedef struct {
 300     u16 ionode;                              /* controller number */
 301     u8 type;                                /* controller type */
 302     u16 info;                                /* slot etc. */
 303     u16 oem_id;                              /* OEM ID */
 304     u16 bios_ver;                            /* not used */
 305     u16 access;                              /* not used */
 306     u16 ext_type;                            /* extended type */
 307     u16 device_id;                           /* device ID */
 308     u16 sub_device_id;                       /* sub device ID */
 309 } gdth_ioctl_ctrtype;
 310
 311 /* GDTIOCTL_EVENT */
 312 typedef struct {
 313     u16 ionode;
 314     int erase;                                  /* erase event? */
 315     int handle;                                 /* event handle */
 316     gdth_evt_str event;
 317 } gdth_ioctl_event;
 318
 319 /* GDTIOCTL_RESCAN/GDTIOCTL_HDRLIST */
 320 typedef struct {
 321     u16 ionode;                              /* controller number */
 322     u8 flag;                                /* add/remove */
 323     u16 hdr_no;                              /* drive no. */
 324     struct {
 325         u8 bus;                             /* SCSI bus */
 326         u8 target;                          /* target ID */
 327         u8 lun;                             /* LUN */
 328         u8 cluster_type;                    /* cluster properties */
 329     } hdr_list[MAX_HDRIVES];                    /* index is host drive number */
 330 } gdth_ioctl_rescan;
 331
 332 /* GDTIOCTL_RESET_BUS/GDTIOCTL_RESET_DRV */
 333 typedef struct {
 334     u16 ionode;                              /* controller number */
 335     u16 number;                              /* bus/host drive number */
 336     u16 status;                              /* status */
 337 } gdth_ioctl_reset;
 338
 339 #endif