[unix-history] / usr / src / sys / nfs / nfs.h

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Rick Macklem at The University of Guelph.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)nfs.h	7.4 (Berkeley) %G%
 */

/*
 * Tunable constants for nfs
 */
#define	MAX_IOVEC	10
#define	NFS_TIMEO	10	/* Timeout in .1 sec intervals */
#define	NFS_MAXTIMEO	600	/* Max timeout to backoff too in .1 sec */
#define	NFS_ATTRTIMEO	5	/* Attribute cache timeout in sec */
#define	NFS_RETRANS	10	/* Num of retrans for soft mounts */
#define	NFS_WSIZE	8192	/* Max. write data size <= 8192 */
#define	NFS_RSIZE	8192	/* Max. read data size <= 8192 */
#define	MAX_READDIR	NFS_RSIZE	/* Max. size of directory read */
#define	MAX_ASYNCDAEMON	20	/* Max. number of async_daemons runnable */
#define	NMOD(a)		((a) % nfs_asyncdaemons)

/*
 * Nfs outstanding request list element
 */
struct nfsreq {
	struct nfsreq	*r_next;
	struct nfsreq	*r_prev;
	struct mbuf	*r_mreq;
	struct mbuf	*r_mrep;
	struct nfsmount *r_mntp;
	struct vnode	*r_vp;
	int		r_msiz;
	u_long		r_xid;
	u_long		r_inaddr;
	u_long		r_retry;
	u_long		r_timeout;
	u_long		r_timer;
};

/*
 * Silly rename structure that hangs off the nfsnode until the name
 * can be removed by nfs_inactive()
 */
struct sillyrename {
	int	s_flag;
	nfsv2fh_t s_fh;
	struct nameidata s_namei;
};

/* And its flag values */
#define REMOVE		0
#define	RMDIR		1

/*
 * Stats structure
 */
struct nfsstats {
	int	attrcache_hits;
	int	attrcache_misses;
	int	lookupcache_hits;
	int	lookupcache_misses;
	int	biocache_reads;
	int	read_bios;
	int	read_physios;
	int	biocache_writes;
	int	write_bios;
	int	write_physios;
	int	rpccnt[NFS_NPROCS];
	int	rpcretries;
	int	srvrpccnt[NFS_NPROCS];
	int	srvrpc_errs;
	int	srv_errs;
	int	srvcache_inproghits;
	int	srvcache_idemdonehits;
	int	srvcache_nonidemdonehits;
	int	srvcache_misses;
};

#ifdef KERNEL
struct nfsstats nfsstats;
#endif
Commit	Line	Data
a2907882 KM	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Rick Macklem at The University of Guelph.
	7	*
	8	* Redistribution and use in source and binary forms are permitted
	9	* provided that the above copyright notice and this paragraph are
	10	* duplicated in all such forms and that any documentation,
	11	* advertising materials, and other materials related to such
	12	* distribution and use acknowledge that the software was developed
	13	* by the University of California, Berkeley. The name of the
	14	* University may not be used to endorse or promote products derived
	15	* from this software without specific prior written permission.
	16	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	17	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	18	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	19	*
66435314	20	* @(#)nfs.h 7.4 (Berkeley) %G%
a2907882 KM	21	*/
	22
	23	/*
	24	* Tunable constants for nfs
	25	*/
	26	#define MAX_IOVEC 10
36c3043b KM	27	#define NFS_TIMEO 10 /* Timeout in .1 sec intervals */
36c3043b KM	28	#define NFS_MAXTIMEO 600 /* Max timeout to backoff too in .1 sec */
a2907882 KM	29	#define NFS_ATTRTIMEO 5 /* Attribute cache timeout in sec */
a2907882 KM	30	#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
36c3043b KM	31	#define NFS_WSIZE 8192 /* Max. write data size <= 8192 */
36c3043b KM	32	#define NFS_RSIZE 8192 /* Max. read data size <= 8192 */
a2907882	33	#define MAX_READDIR NFS_RSIZE /* Max. size of directory read */
ffe6f482 KM	34	#define MAX_ASYNCDAEMON 20 /* Max. number of async_daemons runnable */
ffe6f482 KM	35	#define NMOD(a) ((a) % nfs_asyncdaemons)
a2907882 KM	36
	37	/*
	38	* Nfs outstanding request list element
	39	*/
	40	struct nfsreq {
	41	struct nfsreq *r_next;
	42	struct nfsreq *r_prev;
	43	struct mbuf *r_mreq;
	44	struct mbuf *r_mrep;
	45	struct nfsmount *r_mntp;
	46	struct vnode *r_vp;
	47	int r_msiz;
	48	u_long r_xid;
ffe6f482	49	u_long r_inaddr;
a2907882 KM	50	u_long r_retry;
	51	u_long r_timeout;
	52	u_long r_timer;
	53	};
	54
	55	/*
	56	* Silly rename structure that hangs off the nfsnode until the name
	57	* can be removed by nfs_inactive()
	58	*/
	59	struct sillyrename {
	60	int s_flag;
	61	nfsv2fh_t s_fh;
	62	struct nameidata s_namei;
	63	};
	64
	65	/* And its flag values */
	66	#define REMOVE 0
	67	#define RMDIR 1
	68
	69	/*
	70	* Stats structure
	71	*/
	72	struct nfsstats {
	73	int attrcache_hits;
	74	int attrcache_misses;
	75	int lookupcache_hits;
	76	int lookupcache_misses;
66435314 KM	77	int biocache_reads;
	78	int read_bios;
	79	int read_physios;
	80	int biocache_writes;
	81	int write_bios;
	82	int write_physios;
a2907882 KM	83	int rpccnt[NFS_NPROCS];
	84	int rpcretries;
	85	int srvrpccnt[NFS_NPROCS];
	86	int srvrpc_errs;
	87	int srv_errs;
66435314 KM	88	int srvcache_inproghits;
	89	int srvcache_idemdonehits;
	90	int srvcache_nonidemdonehits;
	91	int srvcache_misses;
a2907882 KM	92	};
	93
	94	#ifdef KERNEL
	95	struct nfsstats nfsstats;
	96	#endif