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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FS_NFSD_PNFS_H
3#define _FS_NFSD_PNFS_H 1
4
5#ifdef CONFIG_NFSD_V4
6#include <linux/exportfs.h>
7#include <linux/nfsd/export.h>
8
9#include "state.h"
10#include "xdr4.h"
11
12struct xdr_stream;
13
14struct nfsd4_deviceid_map {
15 struct list_head hash;
16 u64 idx;
17 int fsid_type;
18 u32 fsid[];
19};
20
21struct nfsd4_layout_ops {
22 u32 notify_types;
23 bool disable_recalls;
24
25 __be32 (*proc_getdeviceinfo)(struct super_block *sb,
26 struct svc_rqst *rqstp,
27 struct nfs4_client *clp,
28 struct nfsd4_getdeviceinfo *gdevp);
29 __be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
30 struct nfsd4_getdeviceinfo *gdevp);
31
32 __be32 (*proc_layoutget)(struct inode *, const struct svc_fh *fhp,
33 struct nfsd4_layoutget *lgp);
34 __be32 (*encode_layoutget)(struct xdr_stream *,
35 struct nfsd4_layoutget *lgp);
36
37 __be32 (*proc_layoutcommit)(struct inode *inode,
38 struct nfsd4_layoutcommit *lcp);
39
40 void (*fence_client)(struct nfs4_layout_stateid *ls);
41};
42
43extern const struct nfsd4_layout_ops *nfsd4_layout_ops[];
44#ifdef CONFIG_NFSD_BLOCKLAYOUT
45extern const struct nfsd4_layout_ops bl_layout_ops;
46#endif
47#ifdef CONFIG_NFSD_SCSILAYOUT
48extern const struct nfsd4_layout_ops scsi_layout_ops;
49#endif
50#ifdef CONFIG_NFSD_FLEXFILELAYOUT
51extern const struct nfsd4_layout_ops ff_layout_ops;
52#endif
53
54__be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
55 struct nfsd4_compound_state *cstate, stateid_t *stateid,
56 bool create, u32 layout_type, struct nfs4_layout_stateid **lsp);
57__be32 nfsd4_insert_layout(struct nfsd4_layoutget *lgp,
58 struct nfs4_layout_stateid *ls);
59__be32 nfsd4_return_file_layouts(struct svc_rqst *rqstp,
60 struct nfsd4_compound_state *cstate,
61 struct nfsd4_layoutreturn *lrp);
62__be32 nfsd4_return_client_layouts(struct svc_rqst *rqstp,
63 struct nfsd4_compound_state *cstate,
64 struct nfsd4_layoutreturn *lrp);
65int nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp,
66 u32 device_generation);
67struct nfsd4_deviceid_map *nfsd4_find_devid_map(int idx);
68#endif /* CONFIG_NFSD_V4 */
69
70#ifdef CONFIG_NFSD_PNFS
71void nfsd4_setup_layout_type(struct svc_export *exp);
72void nfsd4_return_all_client_layouts(struct nfs4_client *);
73void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
74 struct nfs4_file *fp);
75int nfsd4_init_pnfs(void);
76void nfsd4_exit_pnfs(void);
77#else
78struct nfs4_client;
79struct nfs4_file;
80
81static inline void nfsd4_setup_layout_type(struct svc_export *exp)
82{
83}
84
85static inline void nfsd4_return_all_client_layouts(struct nfs4_client *clp)
86{
87}
88static inline void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
89 struct nfs4_file *fp)
90{
91}
92static inline void nfsd4_exit_pnfs(void)
93{
94}
95static inline int nfsd4_init_pnfs(void)
96{
97 return 0;
98}
99#endif /* CONFIG_NFSD_PNFS */
100#endif /* _FS_NFSD_PNFS_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FS_NFSD_PNFS_H
3#define _FS_NFSD_PNFS_H 1
4
5#ifdef CONFIG_NFSD_V4
6#include <linux/exportfs.h>
7#include <linux/nfsd/export.h>
8
9#include "state.h"
10#include "xdr4.h"
11
12struct xdr_stream;
13
14struct nfsd4_deviceid_map {
15 struct list_head hash;
16 u64 idx;
17 int fsid_type;
18 u32 fsid[];
19};
20
21struct nfsd4_layout_ops {
22 u32 notify_types;
23 bool disable_recalls;
24
25 __be32 (*proc_getdeviceinfo)(struct super_block *sb,
26 struct svc_rqst *rqstp,
27 struct nfs4_client *clp,
28 struct nfsd4_getdeviceinfo *gdevp);
29 __be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
30 const struct nfsd4_getdeviceinfo *gdevp);
31
32 __be32 (*proc_layoutget)(struct inode *, const struct svc_fh *fhp,
33 struct nfsd4_layoutget *lgp);
34 __be32 (*encode_layoutget)(struct xdr_stream *xdr,
35 const struct nfsd4_layoutget *lgp);
36
37 __be32 (*proc_layoutcommit)(struct inode *inode,
38 struct nfsd4_layoutcommit *lcp);
39
40 void (*fence_client)(struct nfs4_layout_stateid *ls,
41 struct nfsd_file *file);
42};
43
44extern const struct nfsd4_layout_ops *nfsd4_layout_ops[];
45#ifdef CONFIG_NFSD_BLOCKLAYOUT
46extern const struct nfsd4_layout_ops bl_layout_ops;
47#endif
48#ifdef CONFIG_NFSD_SCSILAYOUT
49extern const struct nfsd4_layout_ops scsi_layout_ops;
50#endif
51#ifdef CONFIG_NFSD_FLEXFILELAYOUT
52extern const struct nfsd4_layout_ops ff_layout_ops;
53#endif
54
55__be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
56 struct nfsd4_compound_state *cstate, stateid_t *stateid,
57 bool create, u32 layout_type, struct nfs4_layout_stateid **lsp);
58__be32 nfsd4_insert_layout(struct nfsd4_layoutget *lgp,
59 struct nfs4_layout_stateid *ls);
60__be32 nfsd4_return_file_layouts(struct svc_rqst *rqstp,
61 struct nfsd4_compound_state *cstate,
62 struct nfsd4_layoutreturn *lrp);
63__be32 nfsd4_return_client_layouts(struct svc_rqst *rqstp,
64 struct nfsd4_compound_state *cstate,
65 struct nfsd4_layoutreturn *lrp);
66int nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp,
67 u32 device_generation);
68struct nfsd4_deviceid_map *nfsd4_find_devid_map(int idx);
69#endif /* CONFIG_NFSD_V4 */
70
71#ifdef CONFIG_NFSD_PNFS
72void nfsd4_setup_layout_type(struct svc_export *exp);
73void nfsd4_return_all_client_layouts(struct nfs4_client *);
74void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
75 struct nfs4_file *fp);
76void nfsd4_close_layout(struct nfs4_layout_stateid *ls);
77int nfsd4_init_pnfs(void);
78void nfsd4_exit_pnfs(void);
79#else
80struct nfs4_client;
81struct nfs4_file;
82struct nfs4_layout_stateid;
83
84static inline void nfsd4_setup_layout_type(struct svc_export *exp)
85{
86}
87
88static inline void nfsd4_return_all_client_layouts(struct nfs4_client *clp)
89{
90}
91static inline void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
92 struct nfs4_file *fp)
93{
94}
95static inline void nfsd4_close_layout(struct nfs4_layout_stateid *ls)
96{
97}
98static inline void nfsd4_exit_pnfs(void)
99{
100}
101static inline int nfsd4_init_pnfs(void)
102{
103 return 0;
104}
105#endif /* CONFIG_NFSD_PNFS */
106#endif /* _FS_NFSD_PNFS_H */