drivers/scsi/gdth_ioctl.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _GDTH_IOCTL_H
   3 #define _GDTH_IOCTL_H
   4
   5 /* gdth_ioctl.h
   6  * $Id: gdth_ioctl.h,v 1.14 2004/02/19 15:43:15 achim Exp $
   7  */
   8
   9 /* IOCTLs */
  10 #define GDTIOCTL_MASK       ('J'<<8)
  11 #define GDTIOCTL_GENERAL    (GDTIOCTL_MASK | 0) /* general IOCTL */
  12 #define GDTIOCTL_DRVERS     (GDTIOCTL_MASK | 1) /* get driver version */
  13 #define GDTIOCTL_CTRTYPE    (GDTIOCTL_MASK | 2) /* get controller type */
  14 #define GDTIOCTL_OSVERS     (GDTIOCTL_MASK | 3) /* get OS version */
  15 #define GDTIOCTL_HDRLIST    (GDTIOCTL_MASK | 4) /* get host drive list */
  16 #define GDTIOCTL_CTRCNT     (GDTIOCTL_MASK | 5) /* get controller count */
  17 #define GDTIOCTL_LOCKDRV    (GDTIOCTL_MASK | 6) /* lock host drive */
  18 #define GDTIOCTL_LOCKCHN    (GDTIOCTL_MASK | 7) /* lock channel */
  19 #define GDTIOCTL_EVENT      (GDTIOCTL_MASK | 8) /* read controller events */
  20 #define GDTIOCTL_SCSI       (GDTIOCTL_MASK | 9) /* SCSI command */
  21 #define GDTIOCTL_RESET_BUS  (GDTIOCTL_MASK |10) /* reset SCSI bus */
  22 #define GDTIOCTL_RESCAN     (GDTIOCTL_MASK |11) /* rescan host drives */
  23 #define GDTIOCTL_RESET_DRV  (GDTIOCTL_MASK |12) /* reset (remote) drv. res. */
  24
  25 #define GDTIOCTL_MAGIC  0xaffe0004
  26 #define EVENT_SIZE      294
  27 #define GDTH_MAXSG      32                      /* max. s/g elements */
  28
  29 #define MAX_LDRIVES     255                     /* max. log. drive count */
  30 #ifdef GDTH_IOCTL_PROC
  31 #define MAX_HDRIVES     100                     /* max. host drive count */
  32 #else
  33 #define MAX_HDRIVES     MAX_LDRIVES             /* max. host drive count */
  34 #endif
  35
  36 /* scatter/gather element */
  37 typedef struct {
  38     u32     sg_ptr;                         /* address */
  39     u32     sg_len;                         /* length */
  40 } __attribute__((packed)) gdth_sg_str;
  41
  42 /* scatter/gather element - 64bit addresses */
  43 typedef struct {
  44     u64     sg_ptr;                         /* address */
  45     u32     sg_len;                         /* length */
  46 } __attribute__((packed)) gdth_sg64_str;
  47
  48 /* command structure */
  49 typedef struct {
  50     u32     BoardNode;                      /* board node (always 0) */
  51     u32     CommandIndex;                   /* command number */
  52     u16      OpCode;                         /* the command (READ,..) */
  53     union {
  54         struct {
  55             u16      DeviceNo;               /* number of cache drive */
  56             u32     BlockNo;                /* block number */
  57             u32     BlockCnt;               /* block count */
  58             u32     DestAddr;               /* dest. addr. (if s/g: -1) */
  59             u32     sg_canz;                /* s/g element count */
  60             gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
  61         } __attribute__((packed)) cache;                         /* cache service cmd. str. */
  62         struct {
  63             u16      DeviceNo;               /* number of cache drive */
  64             u64     BlockNo;                /* block number */
  65             u32     BlockCnt;               /* block count */
  66             u64     DestAddr;               /* dest. addr. (if s/g: -1) */
  67             u32     sg_canz;                /* s/g element count */
  68             gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
  69         } __attribute__((packed)) cache64;                       /* cache service cmd. str. */
  70         struct {
  71             u16      param_size;             /* size of p_param buffer */
  72             u32     subfunc;                /* IOCTL function */
  73             u32     channel;                /* device */
  74             u64     p_param;                /* buffer */
  75         } __attribute__((packed)) ioctl;                         /* IOCTL command structure */
  76         struct {
  77             u16      reserved;
  78             union {
  79                 struct {
  80                     u32  msg_handle;        /* message handle */
  81                     u64  msg_addr;          /* message buffer address */
  82                 } __attribute__((packed)) msg;
  83                 u8       data[12];          /* buffer for rtc data, ... */
  84             } su;
  85         } __attribute__((packed)) screen;                        /* screen service cmd. str. */
  86         struct {
  87             u16      reserved;
  88             u32     direction;              /* data direction */
  89             u32     mdisc_time;             /* disc. time (0: no timeout)*/
  90             u32     mcon_time;              /* connect time(0: no to.) */
  91             u32     sdata;                  /* dest. addr. (if s/g: -1) */
  92             u32     sdlen;                  /* data length (bytes) */
  93             u32     clen;                   /* SCSI cmd. length(6,10,12) */
  94             u8      cmd[12];                /* SCSI command */
  95             u8      target;                 /* target ID */
  96             u8      lun;                    /* LUN */
  97             u8      bus;                    /* SCSI bus number */
  98             u8      priority;               /* only 0 used */
  99             u32     sense_len;              /* sense data length */
 100             u32     sense_data;             /* sense data addr. */
 101             u32     link_p;                 /* linked cmds (not supp.) */
 102             u32     sg_ranz;                /* s/g element count */
 103             gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
 104         } __attribute__((packed)) raw;                           /* raw service cmd. struct. */
 105         struct {
 106             u16      reserved;
 107             u32     direction;              /* data direction */
 108             u32     mdisc_time;             /* disc. time (0: no timeout)*/
 109             u32     mcon_time;              /* connect time(0: no to.) */
 110             u64     sdata;                  /* dest. addr. (if s/g: -1) */
 111             u32     sdlen;                  /* data length (bytes) */
 112             u32     clen;                   /* SCSI cmd. length(6,..,16) */
 113             u8      cmd[16];                /* SCSI command */
 114             u8      target;                 /* target ID */
 115             u8      lun;                    /* LUN */
 116             u8      bus;                    /* SCSI bus number */
 117             u8      priority;               /* only 0 used */
 118             u32     sense_len;              /* sense data length */
 119             u64     sense_data;             /* sense data addr. */
 120             u32     sg_ranz;                /* s/g element count */
 121             gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
 122         } __attribute__((packed)) raw64;                         /* raw service cmd. struct. */
 123     } u;
 124     /* additional variables */
 125     u8      Service;                        /* controller service */
 126     u8      reserved;
 127     u16      Status;                         /* command result */
 128     u32     Info;                           /* additional information */
 129     void        *RequestBuffer;                 /* request buffer */
 130 } __attribute__((packed)) gdth_cmd_str;
 131
 132 /* controller event structure */
 133 #define ES_ASYNC    1
 134 #define ES_DRIVER   2
 135 #define ES_TEST     3
 136 #define ES_SYNC     4
 137 typedef struct {
 138     u16                  size;               /* size of structure */
 139     union {
 140         char                stream[16];
 141         struct {
 142             u16          ionode;
 143             u16          service;
 144             u32         index;
 145         } __attribute__((packed)) driver;
 146         struct {
 147             u16          ionode;
 148             u16          service;
 149             u16          status;
 150             u32         info;
 151             u8          scsi_coord[3];
 152         } __attribute__((packed)) async;
 153         struct {
 154             u16          ionode;
 155             u16          service;
 156             u16          status;
 157             u32         info;
 158             u16          hostdrive;
 159             u8          scsi_coord[3];
 160             u8          sense_key;
 161         } __attribute__((packed)) sync;
 162         struct {
 163             u32         l1, l2, l3, l4;
 164         } __attribute__((packed)) test;
 165     } eu;
 166     u32                 severity;
 167     u8                  event_string[256];
 168 } __attribute__((packed)) gdth_evt_data;
 169
 170 typedef struct {
 171     u32         first_stamp;
 172     u32         last_stamp;
 173     u16          same_count;
 174     u16          event_source;
 175     u16          event_idx;
 176     u8          application;
 177     u8          reserved;
 178     gdth_evt_data   event_data;
 179 } __attribute__((packed)) gdth_evt_str;
 180
 181
 182 #ifdef GDTH_IOCTL_PROC
 183 /* IOCTL structure (write) */
 184 typedef struct {
 185     u32                 magic;              /* IOCTL magic */
 186     u16                  ioctl;              /* IOCTL */
 187     u16                  ionode;             /* controller number */
 188     u16                  service;            /* controller service */
 189     u16                  timeout;            /* timeout */
 190     union {
 191         struct {
 192             u8          command[512];       /* controller command */
 193             u8          data[1];            /* add. data */
 194         } general;
 195         struct {
 196             u8          lock;               /* lock/unlock */
 197             u8          drive_cnt;          /* drive count */
 198             u16          drives[MAX_HDRIVES];/* drives */
 199         } lockdrv;
 200         struct {
 201             u8          lock;               /* lock/unlock */
 202             u8          channel;            /* channel */
 203         } lockchn;
 204         struct {
 205             int             erase;              /* erase event ? */
 206             int             handle;
 207             u8          evt[EVENT_SIZE];    /* event structure */
 208         } event;
 209         struct {
 210             u8          bus;                /* SCSI bus */
 211             u8          target;             /* target ID */
 212             u8          lun;                /* LUN */
 213             u8          cmd_len;            /* command length */
 214             u8          cmd[12];            /* SCSI command */
 215         } scsi;
 216         struct {
 217             u16          hdr_no;             /* host drive number */
 218             u8          flag;               /* old meth./add/remove */
 219         } rescan;
 220     } iu;
 221 } gdth_iowr_str;
 222
 223 /* IOCTL structure (read) */
 224 typedef struct {
 225     u32                 size;               /* buffer size */
 226     u32                 status;             /* IOCTL error code */
 227     union {
 228         struct {
 229             u8          data[1];            /* data */
 230         } general;
 231         struct {
 232             u16          version;            /* driver version */
 233         } drvers;
 234         struct {
 235             u8          type;               /* controller type */
 236             u16          info;               /* slot etc. */
 237             u16          oem_id;             /* OEM ID */
 238             u16          bios_ver;           /* not used */
 239             u16          access;             /* not used */
 240             u16          ext_type;           /* extended type */
 241             u16          device_id;          /* device ID */
 242             u16          sub_device_id;      /* sub device ID */
 243         } ctrtype;
 244         struct {
 245             u8          version;            /* OS version */
 246             u8          subversion;         /* OS subversion */
 247             u16          revision;           /* revision */
 248         } osvers;
 249         struct {
 250             u16          count;              /* controller count */
 251         } ctrcnt;
 252         struct {
 253             int             handle;
 254             u8          evt[EVENT_SIZE];    /* event structure */
 255         } event;
 256         struct {
 257             u8          bus;                /* SCSI bus, 0xff: invalid */
 258             u8          target;             /* target ID */
 259             u8          lun;                /* LUN */
 260             u8          cluster_type;       /* cluster properties */
 261         } hdr_list[MAX_HDRIVES];                /* index is host drive number */
 262     } iu;
 263 } gdth_iord_str;
 264 #endif
 265
 266 /* GDTIOCTL_GENERAL */
 267 typedef struct {
 268     u16 ionode;                              /* controller number */
 269     u16 timeout;                             /* timeout */
 270     u32 info;                               /* error info */
 271     u16 status;                              /* status */
 272     unsigned long data_len;                             /* data buffer size */
 273     unsigned long sense_len;                            /* sense buffer size */
 274     gdth_cmd_str command;                       /* command */
 275 } gdth_ioctl_general;
 276
 277 /* GDTIOCTL_LOCKDRV */
 278 typedef struct {
 279     u16 ionode;                              /* controller number */
 280     u8 lock;                                /* lock/unlock */
 281     u8 drive_cnt;                           /* drive count */
 282     u16 drives[MAX_HDRIVES];                 /* drives */
 283 } gdth_ioctl_lockdrv;
 284
 285 /* GDTIOCTL_LOCKCHN */
 286 typedef struct {
 287     u16 ionode;                              /* controller number */
 288     u8 lock;                                /* lock/unlock */
 289     u8 channel;                             /* channel */
 290 } gdth_ioctl_lockchn;
 291
 292 /* GDTIOCTL_OSVERS */
 293 typedef struct {
 294     u8 version;                             /* OS version */
 295     u8 subversion;                          /* OS subversion */
 296     u16 revision;                            /* revision */
 297 } gdth_ioctl_osvers;
 298
 299 /* GDTIOCTL_CTRTYPE */
 300 typedef struct {
 301     u16 ionode;                              /* controller number */
 302     u8 type;                                /* controller type */
 303     u16 info;                                /* slot etc. */
 304     u16 oem_id;                              /* OEM ID */
 305     u16 bios_ver;                            /* not used */
 306     u16 access;                              /* not used */
 307     u16 ext_type;                            /* extended type */
 308     u16 device_id;                           /* device ID */
 309     u16 sub_device_id;                       /* sub device ID */
 310 } gdth_ioctl_ctrtype;
 311
 312 /* GDTIOCTL_EVENT */
 313 typedef struct {
 314     u16 ionode;
 315     int erase;                                  /* erase event? */
 316     int handle;                                 /* event handle */
 317     gdth_evt_str event;
 318 } gdth_ioctl_event;
 319
 320 /* GDTIOCTL_RESCAN/GDTIOCTL_HDRLIST */
 321 typedef struct {
 322     u16 ionode;                              /* controller number */
 323     u8 flag;                                /* add/remove */
 324     u16 hdr_no;                              /* drive no. */
 325     struct {
 326         u8 bus;                             /* SCSI bus */
 327         u8 target;                          /* target ID */
 328         u8 lun;                             /* LUN */
 329         u8 cluster_type;                    /* cluster properties */
 330     } hdr_list[MAX_HDRIVES];                    /* index is host drive number */
 331 } gdth_ioctl_rescan;
 332
 333 /* GDTIOCTL_RESET_BUS/GDTIOCTL_RESET_DRV */
 334 typedef struct {
 335     u16 ionode;                              /* controller number */
 336     u16 number;                              /* bus/host drive number */
 337     u16 status;                              /* status */
 338 } gdth_ioctl_reset;
 339
 340 #endif