include/linux/coda_psdev.h

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