1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 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 #ifdef NFS_DEBUG 61 62 extern int nfs_debug; 63 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 64 #define NFS_DEBUG_WG 2 /* server write gathering */ 65 #define NFS_DEBUG_RC 4 /* server request caching */ 66 67 #define NFS_DPF(cat, args) \ 68 do { \ 69 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 70 } while (0) 71 72 #else 73 74 #define NFS_DPF(cat, args) 75 76 #endif 77 78 /* 79 * NFS iod threads can be in one of these three states once spawned. 80 * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time. 81 * NFSIOD_AVAILABLE - Available to be assigned an I/O operation. 82 * NFSIOD_CREATED_FOR_NFS_ASYNCIO - Newly created for nfs_asyncio() and 83 * will be used by the thread that called nfs_asyncio(). 84 */ 85 enum nfsiod_state { 86 NFSIOD_NOT_AVAILABLE = 0, 87 NFSIOD_AVAILABLE = 1, 88 NFSIOD_CREATED_FOR_NFS_ASYNCIO = 2, 89 }; 90 91 /* 92 * Function prototypes. 93 */ 94 int ncl_meta_setsize(struct vnode *, struct thread *, u_quad_t); 95 void ncl_doio_directwrite(struct buf *); 96 int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *); 97 int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *); 98 int ncl_vinvalbuf(struct vnode *, int, struct thread *, int); 99 int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *, 100 struct thread *); 101 int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *, 102 int); 103 void ncl_nhinit(void); 104 void ncl_nhuninit(void); 105 void ncl_nodelock(struct nfsnode *); 106 void ncl_nodeunlock(struct nfsnode *); 107 int ncl_getattrcache(struct vnode *, struct vattr *); 108 int ncl_readrpc(struct vnode *, struct uio *, struct ucred *); 109 int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *, 110 int); 111 int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *); 112 int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *, 113 struct thread *); 114 int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *, 115 struct thread *); 116 int ncl_writebp(struct buf *, int, struct thread *); 117 int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *); 118 void ncl_clearcommit(struct mount *); 119 int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *, 120 struct thread *); 121 int ncl_init(struct vfsconf *); 122 int ncl_uninit(struct vfsconf *); 123 void ncl_nfsiodnew(void); 124 void ncl_nfsiodnew_tq(__unused void *, int); 125 126 #endif /* _KERNEL */ 127 128 #endif /* _NFSCLIENT_NFS_H_ */ 129