root/include/linux/coda_psdev.h

INCLUDED FROM

DEFINITIONS

1. coda_vcp

#ifndef __CODA_PSDEV_H
#define __CODA_PSDEV_H

#include <linux/magic.h>

#define CODA_PSDEV_MAJOR 67
#define MAX_CODADEVS  5    /* how many do we allow */

struct kstatfs;

/* communication pending/processing queues */
struct venus_comm {
        u_long              vc_seq;
        wait_queue_head_t   vc_waitq; /* Venus wait queue */
        struct list_head    vc_pending;
        struct list_head    vc_processing;
        int                 vc_inuse;
        struct super_block *vc_sb;
};


static inline struct venus_comm *coda_vcp(struct super_block *sb)
{
        return (struct venus_comm *)((sb)->s_fs_info);
}


/* upcalls */
int venus_rootfid(struct super_block *sb, struct CodaFid *fidp);
int venus_getattr(struct super_block *sb, struct CodaFid *fid,
                  struct coda_vattr *attr);
int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *);
int venus_lookup(struct super_block *sb, struct CodaFid *fid, 
                 const char *name, int length, int *type, 
                 struct CodaFid *resfid);
int venus_close(struct super_block *sb, struct CodaFid *fid, int flags,
                vuid_t uid);
int venus_open(struct super_block *sb, struct CodaFid *fid, int flags,
               struct file **f);
int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, 
                const char *name, int length, 
                struct CodaFid *newfid, struct coda_vattr *attrs);
int venus_create(struct super_block *sb, struct CodaFid *dirfid, 
                 const char *name, int length, int excl, int mode,
                 struct CodaFid *newfid, struct coda_vattr *attrs) ;
int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, 
                const char *name, int length);
int venus_remove(struct super_block *sb, struct CodaFid *dirfid, 
                 const char *name, int length);
int venus_readlink(struct super_block *sb, struct CodaFid *fid, 
                   char *buffer, int *length);
int venus_rename(struct super_block *, struct CodaFid *new_fid, 
                 struct CodaFid *old_fid, size_t old_length, 
                 size_t new_length, const char *old_name, 
                 const char *new_name);
int venus_link(struct super_block *sb, struct CodaFid *fid, 
                  struct CodaFid *dirfid, const char *name, int len );
int venus_symlink(struct super_block *sb, struct CodaFid *fid,
                  const char *name, int len, const char *symname, int symlen);
int venus_access(struct super_block *sb, struct CodaFid *fid, int mask);
int venus_pioctl(struct super_block *sb, struct CodaFid *fid,
                 unsigned int cmd, struct PioctlData *data);
int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb);
int venus_fsync(struct super_block *sb, struct CodaFid *fid);
int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);


/* messages between coda filesystem in kernel and Venus */
struct upc_req {
        struct list_head    uc_chain;
        caddr_t             uc_data;
        u_short             uc_flags;
        u_short             uc_inSize;  /* Size is at most 5000 bytes */
        u_short             uc_outSize;
        u_short             uc_opcode;  /* copied from data to save lookup */
        int                 uc_unique;
        wait_queue_head_t   uc_sleep;   /* process' wait queue */
};

#define REQ_ASYNC  0x1
#define REQ_READ   0x2
#define REQ_WRITE  0x4
#define REQ_ABORT  0x8


/*
 * Statistics
 */

extern struct venus_comm coda_comms[];

#endif