include/linux/coda_psdev.h

   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
   9 struct statfs;
  10
  11 struct coda_sb_info
  12 {
  13         struct venus_comm * sbi_vcomm;
  14         struct super_block *sbi_sb;
  15         struct list_head    sbi_cihead;
  16 };
  17
  18 /* communication pending/processing queues */
  19 struct venus_comm {
  20         u_long              vc_seq;
  21         wait_queue_head_t   vc_waitq; /* Venus wait queue */
  22         struct list_head    vc_pending;
  23         struct list_head    vc_processing;
  24         int                 vc_inuse;
  25         struct super_block *vc_sb;
  26 };
  27
  28
  29 static inline struct coda_sb_info *coda_sbp(struct super_block *sb)
  30 {
  31     return ((struct coda_sb_info *)((sb)->s_fs_info));
  32 }
  33
  34
  35 /* upcalls */
  36 int venus_rootfid(struct super_block *sb, ViceFid *fidp);
  37 int venus_getattr(struct super_block *sb, struct ViceFid *fid,
  38                      struct coda_vattr *attr);
  39 int venus_setattr(struct super_block *, struct ViceFid *,
  40                      struct coda_vattr *);
  41 int venus_lookup(struct super_block *sb, struct ViceFid *fid,
  42                     const char *name, int length, int *type,
  43                     struct ViceFid *resfid);
  44 int venus_store(struct super_block *sb, struct ViceFid *fid, int flags,
  45                 struct coda_cred *);
  46 int venus_release(struct super_block *sb, struct ViceFid *fid, int flags);
  47 int venus_close(struct super_block *sb, struct ViceFid *fid, int flags,
  48                 struct coda_cred *);
  49 int venus_open(struct super_block *sb, struct ViceFid *fid,
  50                 int flags, struct file **f);
  51 int venus_mkdir(struct super_block *sb, struct ViceFid *dirfid,
  52                 const char *name, int length,
  53                 struct ViceFid *newfid, struct coda_vattr *attrs);
  54 int venus_create(struct super_block *sb, struct ViceFid *dirfid,
  55                  const char *name, int length, int excl, int mode, dev_t rdev,
  56                  struct ViceFid *newfid, struct coda_vattr *attrs) ;
  57 int venus_rmdir(struct super_block *sb, struct ViceFid *dirfid,
  58                 const char *name, int length);
  59 int venus_remove(struct super_block *sb, struct ViceFid *dirfid,
  60                  const char *name, int length);
  61 int venus_readlink(struct super_block *sb, struct ViceFid *fid,
  62                    char *buffer, int *length);
  63 int venus_rename(struct super_block *, struct ViceFid *new_fid,
  64                  struct ViceFid *old_fid, size_t old_length,
  65                  size_t new_length, const char *old_name,
  66                  const char *new_name);
  67 int venus_link(struct super_block *sb, struct ViceFid *fid,
  68                   struct ViceFid *dirfid, const char *name, int len );
  69 int venus_symlink(struct super_block *sb, struct ViceFid *fid,
  70                   const char *name, int len, const char *symname, int symlen);
  71 int venus_access(struct super_block *sb, struct ViceFid *fid, int mask);
  72 int venus_pioctl(struct super_block *sb, struct ViceFid *fid,
  73                  unsigned int cmd, struct PioctlData *data);
  74 int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
  75 int venus_fsync(struct super_block *sb, struct ViceFid *fid);
  76 int venus_statfs(struct super_block *sb, struct kstatfs *sfs);
  77
  78
  79 /* messages between coda filesystem in kernel and Venus */
  80 extern int coda_hard;
  81 extern unsigned long coda_timeout;
  82 struct upc_req {
  83         struct list_head    uc_chain;
  84         caddr_t             uc_data;
  85         u_short             uc_flags;
  86         u_short             uc_inSize;  /* Size is at most 5000 bytes */
  87         u_short             uc_outSize;
  88         u_short             uc_opcode;  /* copied from data to save lookup */
  89         int                 uc_unique;
  90         wait_queue_head_t   uc_sleep;   /* process' wait queue */
  91         unsigned long       uc_posttime;
  92 };
  93
  94 #define REQ_ASYNC  0x1
  95 #define REQ_READ   0x2
  96 #define REQ_WRITE  0x4
  97 #define REQ_ABORT  0x8
  98
  99
 100 /*
 101  * Statistics
 102  */
 103
 104 extern struct venus_comm coda_comms[];
 105
 106 #endif