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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * include/linux/nfsd/const.h
3 *
4 * Various constants related to NFS.
5 *
6 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
7 */
8
9#ifndef _LINUX_NFSD_CONST_H
10#define _LINUX_NFSD_CONST_H
11
12#include <linux/nfs.h>
13#include <linux/nfs2.h>
14#include <linux/nfs3.h>
15#include <linux/nfs4.h>
16
17/*
NeilBrown596bbe52006-10-04 02:15:48 -070018 * Maximum blocksizes supported by daemon under various circumstances.
Linus Torvalds1da177e2005-04-16 15:20:36 -070019 */
NeilBrown596bbe52006-10-04 02:15:48 -070020#define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
Greg Banks7adae482006-10-04 02:15:47 -070021/* NFSv2 is limited by the protocol specification, see RFC 1094 */
22#define NFSSVC_MAXBLKSIZE_V2 (8*1024)
Linus Torvalds1da177e2005-04-16 15:20:36 -070023
24#ifdef __KERNEL__
25
Cedric Le Goaterf7aa2632006-10-04 02:16:21 -070026#include <linux/sunrpc/msg_prot.h>
27
Greg Banks7adae482006-10-04 02:15:47 -070028/*
29 * Largest number of bytes we need to allocate for an NFS
30 * call or reply. Used to control buffer sizes. We use
31 * the length of v3 WRITE, READDIR and READDIR replies
32 * which are an RPC header, up to 26 XDR units of reply
33 * data, and some page data.
34 *
35 * Note that accuracy here doesn't matter too much as the
36 * size is rounded up to a page size when allocating space.
37 */
38#define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070039
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#endif /* __KERNEL__ */
41
42#endif /* _LINUX_NFSD_CONST_H */