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 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 #ifdef NFS_DEBUG 59 60 extern int nfs_debug; 61 #define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */ 62 #define NFS_DEBUG_WG 2 /* server write gathering */ 63 #define NFS_DEBUG_RC 4 /* server request caching */ 64 65 #define NFS_DPF(cat, args) \ 66 do { \ 67 if (nfs_debug & NFS_DEBUG_##cat) printf args; \ 68 } while (0) 69 70 #else 71 72 #define NFS_DPF(cat, args) 73 74 #endif 75 76 /* 77 * NFS iod threads can be in one of these three states once spawned. 78 * NFSIOD_NOT_AVAILABLE - Cannot be assigned an I/O operation at this time. 79 * NFSIOD_AVAILABLE - Available to be assigned an I/O operation. 80 * NFSIOD_CREATED_FOR_NFS_ASYNCIO - Newly created for nfs_asyncio() and 81 * will be used by the thread that called nfs_asyncio(). 82 */ 83 enum nfsiod_state { 84 NFSIOD_NOT_AVAILABLE = 0, 85 NFSIOD_AVAILABLE = 1, 86 NFSIOD_CREATED_FOR_NFS_ASYNCIO = 2, 87 }; 88 89 /* 90 * Function prototypes. 91 */ 92 int ncl_meta_setsize(struct vnode *, struct thread *, u_quad_t); 93 void ncl_doio_directwrite(struct buf *); 94 int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *); 95 int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *); 96 int ncl_vinvalbuf(struct vnode *, int, struct thread *, int); 97 int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *, 98 struct thread *); 99 int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *, 100 int); 101 void ncl_nhinit(void); 102 void ncl_nhuninit(void); 103 void ncl_nodelock(struct nfsnode *); 104 void ncl_nodeunlock(struct nfsnode *); 105 int ncl_getattrcache(struct vnode *, struct vattr *); 106 int ncl_readrpc(struct vnode *, struct uio *, struct ucred *); 107 int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *, 108 int, int); 109 int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *); 110 int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *, 111 struct thread *); 112 int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *, 113 struct thread *); 114 int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *); 115 void ncl_clearcommit(struct mount *); 116 int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *, 117 struct thread *); 118 int ncl_init(struct vfsconf *); 119 int ncl_uninit(struct vfsconf *); 120 void ncl_nfsiodnew(void); 121 void ncl_nfsiodnew_tq(__unused void *, int); 122 123 #endif /* _KERNEL */ 124 125 #endif /* _NFSCLIENT_NFS_H_ */ 126