LXR linux-bk/include/linux/coda

   1#ifndef __CODA_PSDEV_H
   2#define __CODA_PSDEV_H
   3
   4#define CODA_PSDEV_MAJOR 67
   5#define MAX_CODADEVS  5    /* how many do we allow */
   6
   7#define CODA_SUPER_MAGIC        0x73757245
   8
   9struct kstatfs;
  10
  11struct coda_sb_info
  12{
  13        struct venus_comm *sbi_vcomm;
  14};
  15
  16/* communication pending/processing queues */
  17struct venus_comm {
  18        u_long              vc_seq;
  19        wait_queue_head_t   vc_waitq; /* Venus wait queue */
  20        struct list_head    vc_pending;
  21        struct list_head    vc_processing;
  22        int                 vc_inuse;
  23        struct super_block *vc_sb;
  24};
  25
  26
  27static inline struct coda_sb_info *coda_sbp(struct super_block *sb)
  28{
  29    return ((struct coda_sb_info *)((sb)->s_fs_info));
  30}
  31
  32
  33/* upcalls */
  34int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
  35int venus_getattr(struct super_block *sb, struct CodaFid *fid,
  36                  struct coda_vattr *attr);
  37int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
  38int venus_lookup(struct super_block *sb, struct CodaFid *fid, 
  39                 const char *name, int length, int *type, 
  40                 struct CodaFid *resfid);
  41int venus_store(struct super_block *sb, struct CodaFid *fid, int flags,
  42                vuid_t uid);
  43int venus_release(struct super_block *sb, struct CodaFid *fid, int flags);
  44int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
  45                vuid_t uid);
  46int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
  47               struct file **f);
  48int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, 
  49                const char *name, int length, 
  50                struct CodaFid *newfid, struct coda_vattr *attrs);
  51int venus_create(struct super_block *sb, struct CodaFid *dirfid, 
  52                 const char *name, int length, int excl, int mode, dev_t rdev,
  53                 struct CodaFid *newfid, struct coda_vattr *attrs) ;
  54int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, 
  55                const char *name, int length);
  56int venus_remove(struct super_block *sb, struct CodaFid *dirfid, 
  57                 const char *name, int length);
  58int venus_readlink(struct super_block *sb, struct CodaFid *fid, 
  59                   char *buffer, int *length);
  60int venus_rename(struct super_block *, struct CodaFid *new_fid, 
  61                 struct CodaFid *old_fid, size_t old_length, 
  62                 size_t new_length, const char *old_name, 
  63                 const char *new_name);
  64int venus_link(struct super_block *sb, struct CodaFid *fid, 
  65                  struct CodaFid *dirfid, const char *name, int len );
  66int venus_symlink(struct super_block *sb, struct CodaFid *fid,
  67                  const char *name, int len, const char *symname, int symlen);
  68int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
  69int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
  70                 unsigned int cmd, struct PioctlData *data);
  71int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
  72int venus_fsync(struct super_block *sb, struct CodaFid *fid);
  73int venus_statfs(struct super_block *sb, struct kstatfs *sfs);
  74
  75
  76/* messages between coda filesystem in kernel and Venus */
  77extern int coda_hard;
  78extern unsigned long coda_timeout;
  79struct upc_req {
  80        struct list_head    uc_chain;
  81        caddr_t             uc_data;
  82        u_short             uc_flags;
  83        u_short             uc_inSize;  /* Size is at most 5000 bytes */
  84        u_short             uc_outSize;
  85        u_short             uc_opcode;  /* copied from data to save lookup */
  86        int                 uc_unique;
  87        wait_queue_head_t   uc_sleep;   /* process' wait queue */
  88        unsigned long       uc_posttime;
  89};
  90
  91#define REQ_ASYNC  0x1
  92#define REQ_READ   0x2
  93#define REQ_WRITE  0x4
  94#define REQ_ABORT  0x8
  95
  96
  97/*
  98 * Statistics
  99 */
 100
 101extern struct venus_comm coda_comms[];
 102
 103#endif
 104