aboutsummaryrefslogtreecommitdiffstats
path: root/lib/rwsem.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-03-11 05:49:15 -0400
committerIngo Molnar <mingo@elte.hu>2009-03-11 05:49:15 -0400
commit78b020d035074fc3aa4d017353bb2c32e2aff56f (patch)
treee49922810cfcc880248f588743c619e72f543774 /lib/rwsem.c
parentbf5172d07ac38e538e01143289e9b46076494ad5 (diff)
parentfee7b0d84cc8c7bc5dc212901c79e93eaf83a5b5 (diff)
parent5490fa96735ce0e2af270c0868987d644b9a38ec (diff)
parent16b71fdf97599f1b1b7f38418ee9922d9f117396 (diff)
Merge branches 'x86/cleanups', 'x86/kexec', 'x86/mce2' and 'linus' into x86/core
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-02 04:48:14 -0400
='#n273'>273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 
#ifndef _GDTH_IOCTL_H
#define _GDTH_IOCTL_H

/* gdth_ioctl.h
 * $Id: gdth_ioctl.h,v 1.14 2004/02/19 15:43:15 achim Exp $
 */

/* IOCTLs */
#define GDTIOCTL_MASK       ('J'<<8)
#define GDTIOCTL_GENERAL    (GDTIOCTL_MASK | 0) /* general IOCTL */
#define GDTIOCTL_DRVERS     (GDTIOCTL_MASK | 1) /* get driver version */
#define GDTIOCTL_CTRTYPE    (GDTIOCTL_MASK | 2) /* get controller type */
#define GDTIOCTL_OSVERS     (GDTIOCTL_MASK | 3) /* get OS version */
#define GDTIOCTL_HDRLIST    (GDTIOCTL_MASK | 4) /* get host drive list */
#define GDTIOCTL_CTRCNT     (GDTIOCTL_MASK | 5) /* get controller count */
#define GDTIOCTL_LOCKDRV    (GDTIOCTL_MASK | 6) /* lock host drive */
#define GDTIOCTL_LOCKCHN    (GDTIOCTL_MASK | 7) /* lock channel */
#define GDTIOCTL_EVENT      (GDTIOCTL_MASK | 8) /* read controller events */
#define GDTIOCTL_SCSI       (GDTIOCTL_MASK | 9) /* SCSI command */
#define GDTIOCTL_RESET_BUS  (GDTIOCTL_MASK |10) /* reset SCSI bus */
#define GDTIOCTL_RESCAN     (GDTIOCTL_MASK |11) /* rescan host drives */
#define GDTIOCTL_RESET_DRV  (GDTIOCTL_MASK |12) /* reset (remote) drv. res. */

#define GDTIOCTL_MAGIC  0xaffe0004
#define EVENT_SIZE      294 
#define GDTH_MAXSG      32                      /* max. s/g elements */

#define MAX_LDRIVES     255                     /* max. log. drive count */
#ifdef GDTH_IOCTL_PROC
#define MAX_HDRIVES     100                     /* max. host drive count */
#else
#define MAX_HDRIVES     MAX_LDRIVES             /* max. host drive count */
#endif

/* scatter/gather element */
typedef struct {
    u32     sg_ptr;                         /* address */
    u32     sg_len;                         /* length */
} __attribute__((packed)) gdth_sg_str;

/* scatter/gather element - 64bit addresses */
typedef struct {
    u64     sg_ptr;                         /* address */
    u32     sg_len;                         /* length */
} __attribute__((packed)) gdth_sg64_str;

/* command structure */
typedef struct {
    u32     BoardNode;                      /* board node (always 0) */
    u32     CommandIndex;                   /* command number */
    u16      OpCode;                         /* the command (READ,..) */
    union {
        struct {
            u16      DeviceNo;               /* number of cache drive */
            u32     BlockNo;                /* block number */
            u32     BlockCnt;               /* block count */
            u32     DestAddr;               /* dest. addr. (if s/g: -1) */
            u32     sg_canz;                /* s/g element count */
            gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
        } __attribute__((packed)) cache;                         /* cache service cmd. str. */
        struct {
            u16      DeviceNo;               /* number of cache drive */
            u64     BlockNo;                /* block number */
            u32     BlockCnt;               /* block count */
            u64     DestAddr;               /* dest. addr. (if s/g: -1) */
            u32     sg_canz;                /* s/g element count */
            gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
        } __attribute__((packed)) cache64;                       /* cache service cmd. str. */
        struct {
            u16      param_size;             /* size of p_param buffer */
            u32     subfunc;                /* IOCTL function */
            u32     channel;                /* device */
            u64     p_param;                /* buffer */
        } __attribute__((packed)) ioctl;                         /* IOCTL command structure */
        struct {
            u16      reserved;
            union {
                struct {
                    u32  msg_handle;        /* message handle */
                    u64  msg_addr;          /* message buffer address */
                } __attribute__((packed)) msg;
                u8       data[12];          /* buffer for rtc data, ... */
            } su;
        } __attribute__((packed)) screen;                        /* screen service cmd. str. */
        struct {
            u16      reserved;
            u32     direction;              /* data direction */
            u32     mdisc_time;             /* disc. time (0: no timeout)*/
            u32     mcon_time;              /* connect time(0: no to.) */
            u32     sdata;                  /* dest. addr. (if s/g: -1) */
            u32     sdlen;                  /* data length (bytes) */
            u32     clen;                   /* SCSI cmd. length(6,10,12) */
            u8      cmd[12];                /* SCSI command */
            u8      target;                 /* target ID */
            u8      lun;                    /* LUN */
            u8      bus;                    /* SCSI bus number */
            u8      priority;               /* only 0 used */
            u32     sense_len;              /* sense data length */
            u32     sense_data;             /* sense data addr. */
            u32     link_p;                 /* linked cmds (not supp.) */
            u32     sg_ranz;                /* s/g element count */
            gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
        } __attribute__((packed)) raw;                           /* raw service cmd. struct. */
        struct {
            u16      reserved;
            u32     direction;              /* data direction */
            u32     mdisc_time;             /* disc. time (0: no timeout)*/
            u32     mcon_time;              /* connect time(0: no to.) */
            u64     sdata;                  /* dest. addr. (if s/g: -1) */
            u32     sdlen;                  /* data length (bytes) */
            u32     clen;                   /* SCSI cmd. length(6,..,16) */
            u8      cmd[16];                /* SCSI command */
            u8      target;                 /* target ID */
            u8      lun;                    /* LUN */
            u8      bus;                    /* SCSI bus number */
            u8      priority;               /* only 0 used */
            u32     sense_len;              /* sense data length */
            u64     sense_data;             /* sense data addr. */
            u32     sg_ranz;                /* s/g element count */
            gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
        } __attribute__((packed)) raw64;                         /* raw service cmd. struct. */
    } u;
    /* additional variables */
    u8      Service;                        /* controller service */
    u8      reserved;
    u16      Status;                         /* command result */
    u32     Info;                           /* additional information */
    void        *RequestBuffer;                 /* request buffer */
} __attribute__((packed)) gdth_cmd_str;

/* controller event structure */
#define ES_ASYNC    1
#define ES_DRIVER   2
#define ES_TEST     3
#define ES_SYNC     4
typedef struct {
    u16                  size;               /* size of structure */
    union {
        char                stream[16];
        struct {
            u16          ionode;
            u16          service;
            u32         index;
        } __attribute__((packed)) driver;
        struct {
            u16          ionode;
            u16          service;
            u16          status;
            u32         info;
            u8          scsi_coord[3];
        } __attribute__((packed)) async;
        struct {
            u16          ionode;
            u16          service;
            u16          status;
            u32         info;
            u16          hostdrive;
            u8          scsi_coord[3];
            u8          sense_key;
        } __attribute__((packed)) sync;
        struct {
            u32         l1, l2, l3, l4;
        } __attribute__((packed)) test;
    } eu;
    u32                 severity;
    u8                  event_string[256];          
} __attribute__((packed)) gdth_evt_data;

typedef struct {
    u32         first_stamp;
    u32         last_stamp;
    u16          same_count;
    u16          event_source;
    u16          event_idx;
    u8          application;
    u8          reserved;
    gdth_evt_data   event_data;
} __attribute__((packed)) gdth_evt_str;


#ifdef GDTH_IOCTL_PROC
/* IOCTL structure (write) */
typedef struct {
    u32                 magic;              /* IOCTL magic */
    u16                  ioctl;              /* IOCTL */
    u16                  ionode;             /* controller number */
    u16                  service;            /* controller service */
    u16                  timeout;            /* timeout */
    union {
        struct {
            u8          command[512];       /* controller command */
            u8          data[1];            /* add. data */
        } general;
        struct {
            u8          lock;               /* lock/unlock */
            u8          drive_cnt;          /* drive count */
            u16          drives[MAX_HDRIVES];/* drives */
        } lockdrv;
        struct {
            u8          lock;               /* lock/unlock */
            u8          channel;            /* channel */
        } lockchn;
        struct {
            int             erase;              /* erase event ? */
            int             handle;
            u8          evt[EVENT_SIZE];    /* event structure */
        } event;
        struct {
            u8          bus;                /* SCSI bus */
            u8          target;             /* target ID */
            u8          lun;                /* LUN */
            u8          cmd_len;            /* command length */
            u8          cmd[12];            /* SCSI command */
        } scsi;
        struct {
            u16          hdr_no;             /* host drive number */
            u8          flag;               /* old meth./add/remove */
        } rescan;
    } iu;
} gdth_iowr_str;

/* IOCTL structure (read) */
typedef struct {
    u32                 size;               /* buffer size */
    u32                 status;             /* IOCTL error code */
    union {
        struct {
            u8          data[1];            /* data */
        } general;
        struct {
            u16          version;            /* driver version */
        } drvers;
        struct {
            u8          type;               /* controller type */
            u16          info;               /* slot etc. */
            u16          oem_id;             /* OEM ID */
            u16          bios_ver;           /* not used */
            u16          access;             /* not used */
            u16          ext_type;           /* extended type */
            u16          device_id;          /* device ID */
            u16          sub_device_id;      /* sub device ID */
        } ctrtype;
        struct {
            u8          version;            /* OS version */
            u8          subversion;         /* OS subversion */
            u16          revision;           /* revision */
        } osvers;
        struct {
            u16          count;              /* controller count */
        } ctrcnt;
        struct {
            int             handle;
            u8          evt[EVENT_SIZE];    /* event structure */
        } event;
        struct {
            u8          bus;                /* SCSI bus, 0xff: invalid */
            u8          target;             /* target ID */
            u8          lun;                /* LUN */
            u8          cluster_type;       /* cluster properties */
        } hdr_list[MAX_HDRIVES];                /* index is host drive number */
    } iu;
} gdth_iord_str;
#endif

/* GDTIOCTL_GENERAL */
typedef struct {
    u16 ionode;                              /* controller number */
    u16 timeout;                             /* timeout */
    u32 info;                               /* error info */ 
    u16 status;                              /* status */
    unsigned long data_len;                             /* data buffer size */
    unsigned long sense_len;                            /* sense buffer size */
    gdth_cmd_str command;                       /* command */                   
} gdth_ioctl_general;

/* GDTIOCTL_LOCKDRV */
typedef struct {
    u16 ionode;                              /* controller number */
    u8 lock;                                /* lock/unlock */
    u8 drive_cnt;                           /* drive count */
    u16 drives[MAX_HDRIVES];                 /* drives */
} gdth_ioctl_lockdrv;

/* GDTIOCTL_LOCKCHN */
typedef struct {
    u16 ionode;                              /* controller number */
    u8 lock;                                /* lock/unlock */
    u8 channel;                             /* channel */
} gdth_ioctl_lockchn;

/* GDTIOCTL_OSVERS */
typedef struct {
    u8 version;                             /* OS version */
    u8 subversion;                          /* OS subversion */
    u16 revision;                            /* revision */
} gdth_ioctl_osvers;

/* GDTIOCTL_CTRTYPE */
typedef struct {
    u16 ionode;                              /* controller number */
    u8 type;                                /* controller type */
    u16 info;                                /* slot etc. */
    u16 oem_id;                              /* OEM ID */
    u16 bios_ver;                            /* not used */
    u16 access;                              /* not used */
    u16 ext_type;                            /* extended type */
    u16 device_id;                           /* device ID */
    u16 sub_device_id;                       /* sub device ID */
} gdth_ioctl_ctrtype;

/* GDTIOCTL_EVENT */
typedef struct {
    u16 ionode;
    int erase;                                  /* erase event? */
    int handle;                                 /* event handle */
    gdth_evt_str event;
} gdth_ioctl_event;

/* GDTIOCTL_RESCAN/GDTIOCTL_HDRLIST */
typedef struct {
    u16 ionode;                              /* controller number */
    u8 flag;                                /* add/remove */
    u16 hdr_no;                              /* drive no. */
    struct {
        u8 bus;                             /* SCSI bus */
        u8 target;                          /* target ID */
        u8 lun;                             /* LUN */
        u8 cluster_type;                    /* cluster properties */
    } hdr_list[MAX_HDRIVES];                    /* index is host drive number */
} gdth_ioctl_rescan;

/* GDTIOCTL_RESET_BUS/GDTIOCTL_RESET_DRV */
typedef struct {
    u16 ionode;                              /* controller number */
    u16 number;                              /* bus/host drive number */
    u16 status;                              /* status */
} gdth_ioctl_reset;

#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-10-02 04:48:14 -0400