nfs.h revision 207082 
1/*-
2 * Copyright (c) 1989, 1993
3 *	The Regents of the University of California.  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, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: head/sys/fs/nfsclient/nfs.h 207082 2010-04-22 23:51:01Z rmacklem $
33 */
34
35#ifndef _NFSCLIENT_NFS_H_
36#define	_NFSCLIENT_NFS_H_
37
38#if defined(_KERNEL)
39
40#ifndef NFS_TPRINTF_INITIAL_DELAY
41#define	NFS_TPRINTF_INITIAL_DELAY       12
42#endif
43
44#ifndef NFS_TPRINTF_DELAY
45#define	NFS_TPRINTF_DELAY               30
46#endif
47
48/*
49 * Nfs version macros.
50 */
51#define	NFS_ISV3(v) \
52	(VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
53#define	NFS_ISV4(v) \
54	(VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV4)
55#define	NFS_ISV34(v) \
56	(VFSTONFS((v)->v_mount)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
57
58/*
59 * NFS iod threads can be in one of these three states once spawned.
60 * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time.
61 * NFSIOD_AVAILABLE - Available to be assigned an I/O operation.
62 * NFSIOD_CREATED_FOR_NFS_ASYNCIO - Newly created for nfs_asyncio() and
63 *	will be used by the thread that called nfs_asyncio().
64 */
65enum nfsiod_state {
66	NFSIOD_NOT_AVAILABLE = 0,
67	NFSIOD_AVAILABLE = 1,
68	NFSIOD_CREATED_FOR_NFS_ASYNCIO = 2,
69};
70
71/*
72 * Function prototypes.
73 */
74int ncl_meta_setsize(struct vnode *, struct ucred *, struct thread *,
75    u_quad_t);
76void ncl_doio_directwrite(struct buf *);
77int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *);
78int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *);
79int ncl_vinvalbuf(struct vnode *, int, struct thread *, int);
80int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *,
81    struct thread *);
82int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *,
83    int);
84void ncl_nhinit(void);
85void ncl_nhuninit(void);
86void ncl_nodelock(struct nfsnode *);
87void ncl_nodeunlock(struct nfsnode *);
88int ncl_getattrcache(struct vnode *, struct vattr *);
89int ncl_readrpc(struct vnode *, struct uio *, struct ucred *);
90int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *,
91    int);
92int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *);
93int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *,
94    struct thread *);
95int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *,
96    struct thread *);
97int ncl_writebp(struct buf *, int, struct thread *);
98int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *);
99void ncl_clearcommit(struct mount *);
100int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
101    struct thread *);
102int ncl_init(struct vfsconf *);
103int ncl_uninit(struct vfsconf *);
104int ncl_mountroot(struct mount *);
105int ncl_nfsiodnew(int);
106
107#endif	/* _KERNEL */
108
109#endif	/* _NFSCLIENT_NFS_H_ */
110