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: stable/11/sys/fs/nfsclient/nfs.h 349308 2019-06-23 14:49:30Z asomers $ 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 60extern 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 */ 83enum 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 */ 92int ncl_meta_setsize(struct vnode *, struct thread *, u_quad_t); 93void ncl_doio_directwrite(struct buf *); 94int ncl_bioread(struct vnode *, struct uio *, int, struct ucred *); 95int ncl_biowrite(struct vnode *, struct uio *, int, struct ucred *); 96int ncl_vinvalbuf(struct vnode *, int, struct thread *, int); 97int ncl_asyncio(struct nfsmount *, struct buf *, struct ucred *, 98 struct thread *); 99int ncl_doio(struct vnode *, struct buf *, struct ucred *, struct thread *, 100 int); 101void ncl_nhinit(void); 102void ncl_nhuninit(void); 103void ncl_nodelock(struct nfsnode *); 104void ncl_nodeunlock(struct nfsnode *); 105int ncl_getattrcache(struct vnode *, struct vattr *); 106int ncl_readrpc(struct vnode *, struct uio *, struct ucred *); 107int ncl_writerpc(struct vnode *, struct uio *, struct ucred *, int *, int *, 108 int); 109int ncl_readlinkrpc(struct vnode *, struct uio *, struct ucred *); 110int ncl_readdirrpc(struct vnode *, struct uio *, struct ucred *, 111 struct thread *); 112int ncl_readdirplusrpc(struct vnode *, struct uio *, struct ucred *, 113 struct thread *); 114int ncl_writebp(struct buf *, int, struct thread *); 115int ncl_commit(struct vnode *, u_quad_t, int, struct ucred *, struct thread *); 116void ncl_clearcommit(struct mount *); 117int ncl_fsinfo(struct nfsmount *, struct vnode *, struct ucred *, 118 struct thread *); 119int ncl_init(struct vfsconf *); 120int ncl_uninit(struct vfsconf *); 121void ncl_nfsiodnew(void); 122void ncl_nfsiodnew_tq(__unused void *, int); 123 124#endif /* _KERNEL */ 125 126#endif /* _NFSCLIENT_NFS_H_ */ 127