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