/*
* include/linux/nfsd/const.h
*
* Various constants related to NFS.
*
* Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _LINUX_NFSD_CONST_H
#define _LINUX_NFSD_CONST_H
#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs3.h>
#include <linux/nfs4.h>
/*
* Maximum protocol version supported by knfsd
*/
#define NFSSVC_MAXVERS 3
/*
* Maximum blocksizes supported by daemon under various circumstances.
*/
#define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
/* NFSv2 is limited by the protocol specification, see RFC 1094 */
#define NFSSVC_MAXBLKSIZE_V2 (8*1024)
#ifdef __KERNEL__
#include <linux/sunrpc/msg_prot.h>
/*
* Largest number of bytes we need to allocate for an NFS
* call or reply. Used to control buffer sizes. We use
* the length of v3 WRITE, READDIR and READDIR replies
* which are an RPC header, up to 26 XDR units of reply
* data, and some page data.
*
* Note that accuracy here doesn't matter too much as the
* size is rounded up to a page size when allocating space.
*/
#define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
#ifdef CONFIG_NFSD_V4
# define NFSSVC_XDRSIZE NFS4_SVC_XDRSIZE
#elif defined(CONFIG_NFSD_V3)
# define NFSSVC_XDRSIZE NFS3_SVC_XDRSIZE
#else
# define NFSSVC_XDRSIZE NFS2_SVC_XDRSIZE
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_NFSD_CONST_H */
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