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#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