xref: /netbsd-src/sys/fs/nfs/client/nfs.h (revision 946379e7b37692fc43f68eb0d1c10daa0a7f3b6c)
1 /*	$NetBSD: nfs.h,v 1.1.1.1 2013/09/30 07:19:30 dholland Exp $	*/
2 /*-
3  * Copyright (c) 1989, 1993
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * This code is derived from software contributed to Berkeley by
7  * Rick Macklem at The University of Guelph.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * FreeBSD: head/sys/fs/nfsclient/nfs.h 221040 2011-04-25 23:12:18Z rmacklem
34  * $NetBSD: nfs.h,v 1.1.1.1 2013/09/30 07:19:30 dholland Exp $
35  */
36 
37 #ifndef _NFSCLIENT_NFS_H_
38 #define	_NFSCLIENT_NFS_H_
39 
40 #if defined(_KERNEL)
41 
42 #ifndef NFS_TPRINTF_INITIAL_DELAY
43 #define	NFS_TPRINTF_INITIAL_DELAY       12
44 #endif
45 
46 #ifndef NFS_TPRINTF_DELAY
47 #define	NFS_TPRINTF_DELAY               30
48 #endif
49 
50 /*
51  * Nfs version macros.
52  */
53 #define	NFS_ISV3(v) \
54 	(VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
55 #define	NFS_ISV4(v) \
56 	(VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV4)
57 #define	NFS_ISV34(v) \
58 	(VFSTONFS((v)->v_mount)->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4))
59 
60 /*
61  * NFS iod threads can be in one of these three states once spawned.
62  * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time.
63  * NFSIOD_AVAILABLE - Available to be assigned an I/O operation.
64  * NFSIOD_CREATED_FOR_NFS_ASYNCIO - Newly created for nfs_asyncio() and
65  *	will be used by the thread that called nfs_asyncio().
66  */
67 enum nfsiod_state {
68 	NFSIOD_NOT_AVAILABLE = 0,
69 	NFSIOD_AVAILABLE = 1,
70 	NFSIOD_CREATED_FOR_NFS_ASYNCIO = 2,
71 };
72 
73 /*
74  * Function prototypes.
75  */
76 int ncl_meta_setsize(struct vnode *, struct ucred *, struct thread *,
77     u_quad_t);
78 void ncl_doio_directwrite(struct buf *);
79 int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *);
80 int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *);
81 int ncl_vinvalbuf(struct vnode *, int, struct thread *, int);
82 int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *,
83     struct thread *);
84 int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *,
85     int);
86 void ncl_nhinit(void);
87 void ncl_nhuninit(void);
88 void ncl_nodelock(struct nfsnode *);
89 void ncl_nodeunlock(struct nfsnode *);
90 int ncl_getattrcache(struct vnode *, struct vattr *);
91 int ncl_readrpc(struct vnode *, struct uio *, struct ucred *);
92 int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *,
93     int);
94 int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *);
95 int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *,
96     struct thread *);
97 int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *,
98     struct thread *);
99 int ncl_writebp(struct buf *, int, struct thread *);
100 int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *);
101 void ncl_clearcommit(struct mount *);
102 int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *,
103     struct thread *);
104 int ncl_init(struct vfsconf *);
105 int ncl_uninit(struct vfsconf *);
106 void	ncl_nfsiodnew(void);
107 void	ncl_nfsiodnew_tq(__unused void *, int);
108 
109 #endif	/* _KERNEL */
110 
111 #endif	/* _NFSCLIENT_NFS_H_ */
112