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 struct kstatfs;
  10
  11 struct coda_sb_info
  12 {
  13         struct venus_comm *sbi_vcomm;
  14 };
  15
  16 /* communication pending/processing queues */
  17 struct 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
  27 static 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 */
  34 int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
  35 int venus_getattr(struct super_block *sb, struct CodaFid *fid,
  36                   struct coda_vattr *attr);
  37 int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
  38 int venus_lookup(struct super_block *sb, struct CodaFid *fid,
  39                  const char *name, int length, int *type,
  40                  struct CodaFid *resfid);
  41 int venus_store(struct super_block *sb, struct CodaFid *fid, int flags,
  42                 vuid_t uid);
  43 int venus_release(struct super_block *sb, struct CodaFid *fid, int flags);
  44 int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
  45                 vuid_t uid);
  46 int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
  47                struct file **f);
  48 int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid,
  49                 const char *name, int length,
  50                 struct CodaFid *newfid, struct coda_vattr *attrs);
  51 int venus_create(struct super_block *sb, struct CodaFid *dirfid,
  52                  const char *name, int length, int excl, int mode,
  53                  struct CodaFid *newfid, struct coda_vattr *attrs) ;
  54 int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid,
  55                 const char *name, int length);
  56 int venus_remove(struct super_block *sb, struct CodaFid *dirfid,
  57                  const char *name, int length);
  58 int venus_readlink(struct super_block *sb, struct CodaFid *fid,
  59                    char *buffer, int *length);
  60 int 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);
  64 int venus_link(struct super_block *sb, struct CodaFid *fid,
  65                   struct CodaFid *dirfid, const char *name, int len );
  66 int venus_symlink(struct super_block *sb, struct CodaFid *fid,
  67                   const char *name, int len, const char *symname, int symlen);
  68 int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
  69 int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
  70                  unsigned int cmd, struct PioctlData *data);
  71 int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
  72 int venus_fsync(struct super_block *sb, struct CodaFid *fid);
  73 int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);
  74
  75
  76 /* messages between coda filesystem in kernel and Venus */
  77 extern int coda_hard;
  78 extern unsigned long coda_timeout;
  79 struct 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
 101 extern struct venus_comm coda_comms[];
 102
 103 #endif