xref: /linux/fs/nfsd/flexfilelayoutxdr.h (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
4  */
5 #ifndef _NFSD_FLEXFILELAYOUTXDR_H
6 #define _NFSD_FLEXFILELAYOUTXDR_H 1
7 
8 #include <linux/inet.h>
9 #include "xdr4.h"
10 
11 #define FF_FLAGS_NO_LAYOUTCOMMIT 1
12 #define FF_FLAGS_NO_IO_THRU_MDS  2
13 #define FF_FLAGS_NO_READ_IO      4
14 
15 struct xdr_stream;
16 
17 #define FF_NETID_LEN		(4)
18 #define FF_ADDR_LEN		(INET6_ADDRSTRLEN + 8)
19 struct pnfs_ff_netaddr {
20 	char				netid[FF_NETID_LEN + 1];
21 	char				addr[FF_ADDR_LEN + 1];
22 	u32				netid_len;
23 	u32				addr_len;
24 };
25 
26 struct pnfs_ff_device_addr {
27 	struct pnfs_ff_netaddr		netaddr;
28 	u32				version;
29 	u32				minor_version;
30 	u32				rsize;
31 	u32				wsize;
32 	bool				tightly_coupled;
33 };
34 
35 struct pnfs_ff_layout {
36 	u32				flags;
37 	u32				stats_collect_hint;
38 	kuid_t				uid;
39 	kgid_t				gid;
40 	struct nfsd4_deviceid		deviceid;
41 	stateid_t			stateid;
42 	struct nfs_fh			fh;
43 };
44 
45 __be32 nfsd4_ff_encode_getdeviceinfo(struct xdr_stream *xdr,
46 		const struct nfsd4_getdeviceinfo *gdp);
47 __be32 nfsd4_ff_encode_layoutget(struct xdr_stream *xdr,
48 		const struct nfsd4_layoutget *lgp);
49 
50 #endif /* _NFSD_FLEXFILELAYOUTXDR_H */
51