1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NFSD_BLOCKLAYOUTXDR_H
#define _NFSD_BLOCKLAYOUTXDR_H 1
#include <linux/blkdev.h>
#include "xdr4.h"
struct iomap;
struct xdr_stream;
struct pnfs_block_extent {
struct nfsd4_deviceid vol_id;
u64 foff;
u64 len;
u64 soff;
enum pnfs_block_extent_state es;
};
struct pnfs_block_range {
u64 foff;
u64 len;
};
/*
* Random upper cap for the uuid length to avoid unbounded allocation.
* Not actually limited by the protocol.
*/
#define PNFS_BLOCK_UUID_LEN 128
struct pnfs_block_volume {
enum pnfs_block_volume_type type;
union {
struct {
u64 offset;
u32 sig_len;
u8 sig[PNFS_BLOCK_UUID_LEN];
} simple;
struct {
enum scsi_code_set code_set;
enum scsi_designator_type designator_type;
int designator_len;
u8 designator[256];
u64 pr_key;
} scsi;
};
};
struct pnfs_block_deviceaddr {
u32 nr_volumes;
struct pnfs_block_volume volumes[];
};
__be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr,
struct nfsd4_getdeviceinfo *gdp);
__be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr,
struct nfsd4_layoutget *lgp);
int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
u32 block_size);
int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
u32 block_size);
#endif /* _NFSD_BLOCKLAYOUTXDR_H */
|
