diff options
Diffstat (limited to 'include/linux/nfsd/const.h')
| -rw-r--r-- | include/linux/nfsd/const.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/nfsd/const.h b/include/linux/nfsd/const.h new file mode 100644 index 00000000..323f8cfa --- /dev/null +++ b/include/linux/nfsd/const.h @@ -0,0 +1,55 @@ +/* + * 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 */ |