[net-next-2.6.git] / include / linux / coda_psdev.h

#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 */

#ifdef __KERNEL__
#include <linux/backing-dev.h>
#include <linux/mutex.h>

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;
	struct backing_dev_info bdi;
	struct mutex	    vc_mutex;
};


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(struct venus_comm *vcp, int opcode, union outputArgs *out);
int venus_fsync(struct super_block *sb, struct CodaFid *fid);
int venus_statfs(struct dentry *dentry, struct kstatfs *sfs);

/*
 * Statistics
 */

extern struct venus_comm coda_comms[];
#endif /* __KERNEL__ */

/* 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 CODA_REQ_ASYNC  0x1
#define CODA_REQ_READ   0x2
#define CODA_REQ_WRITE  0x4
#define CODA_REQ_ABORT  0x8

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef __CODA_PSDEV_H
	2	#define __CODA_PSDEV_H
	3
e18fa700 JG	4	#include <linux/magic.h>
e18fa700 JG	5
1da177e4 LT	6	#define CODA_PSDEV_MAJOR 67
	7	#define MAX_CODADEVS 5 /* how many do we allow */
	8
f2cddb29	9	#ifdef __KERNEL__
33f60e96	10	#include <linux/backing-dev.h>
da47c19e	11	#include <linux/mutex.h>
33f60e96	12
1da177e4 LT	13	struct kstatfs;
1da177e4 LT	14
1da177e4 LT	15	/* communication pending/processing queues */
	16	struct venus_comm {
	17	u_long vc_seq;
	18	wait_queue_head_t vc_waitq; /* Venus wait queue */
	19	struct list_head vc_pending;
	20	struct list_head vc_processing;
	21	int vc_inuse;
	22	struct super_block *vc_sb;
5163d900	23	struct backing_dev_info bdi;
da47c19e	24	struct mutex vc_mutex;
1da177e4 LT	25	};
	26
	27
a1b0aa87	28	static inline struct venus_comm coda_vcp(struct super_block sb)
1da177e4	29	{
a1b0aa87	30	return (struct venus_comm *)((sb)->s_fs_info);
1da177e4 LT	31	}
1da177e4 LT	32
1da177e4 LT	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);
1da177e4 LT	41	int venus_close(struct super_block sb, struct CodaFid fid, int flags,
	42	vuid_t uid);
	43	int venus_open(struct super_block sb, struct CodaFid fid, int flags,
	44	struct file **f);
	45	int venus_mkdir(struct super_block sb, struct CodaFid dirfid,
	46	const char *name, int length,
	47	struct CodaFid newfid, struct coda_vattr attrs);
	48	int venus_create(struct super_block sb, struct CodaFid dirfid,
	49	const char *name, int length, int excl, int mode,
	50	struct CodaFid newfid, struct coda_vattr attrs) ;
	51	int venus_rmdir(struct super_block sb, struct CodaFid dirfid,
	52	const char *name, int length);
	53	int venus_remove(struct super_block sb, struct CodaFid dirfid,
	54	const char *name, int length);
	55	int venus_readlink(struct super_block sb, struct CodaFid fid,
	56	char buffer, int length);
	57	int venus_rename(struct super_block , struct CodaFid new_fid,
	58	struct CodaFid *old_fid, size_t old_length,
	59	size_t new_length, const char *old_name,
	60	const char *new_name);
	61	int venus_link(struct super_block sb, struct CodaFid fid,
	62	struct CodaFid dirfid, const char name, int len );
	63	int venus_symlink(struct super_block sb, struct CodaFid fid,
	64	const char name, int len, const char symname, int symlen);
	65	int venus_access(struct super_block sb, struct CodaFid fid, int mask);
	66	int venus_pioctl(struct super_block sb, struct CodaFid fid,
	67	unsigned int cmd, struct PioctlData *data);
f7cc02b8	68	int coda_downcall(struct venus_comm vcp, int opcode, union outputArgs out);
1da177e4	69	int venus_fsync(struct super_block sb, struct CodaFid fid);
726c3342	70	int venus_statfs(struct dentry dentry, struct kstatfs sfs);
1da177e4	71
7e7f4eae JSR	72	/*
	73	* Statistics
	74	*/
	75
	76	extern struct venus_comm coda_comms[];
	77	#endif /* __KERNEL__ */
1da177e4 LT	78
1da177e4 LT	79	/* messages between coda filesystem in kernel and Venus */
1da177e4 LT	80	struct upc_req {
	81	struct list_head uc_chain;
	82	caddr_t uc_data;
	83	u_short uc_flags;
	84	u_short uc_inSize; /* Size is at most 5000 bytes */
	85	u_short uc_outSize;
	86	u_short uc_opcode; /* copied from data to save lookup */
	87	int uc_unique;
	88	wait_queue_head_t uc_sleep; /* process' wait queue */
1da177e4 LT	89	};
1da177e4 LT	90
4aeefdc6 JA	91	#define CODA_REQ_ASYNC 0x1
	92	#define CODA_REQ_READ 0x2
	93	#define CODA_REQ_WRITE 0x4
	94	#define CODA_REQ_ABORT 0x8
1da177e4	95
1da177e4	96	#endif