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8650b8a0 CH |
1 | #ifndef _NFSD_BLOCKLAYOUTXDR_H |
2 | #define _NFSD_BLOCKLAYOUTXDR_H 1 | |
3 | ||
4 | #include <linux/blkdev.h> | |
5 | #include "xdr4.h" | |
6 | ||
7 | struct iomap; | |
8 | struct xdr_stream; | |
9 | ||
8650b8a0 CH |
10 | struct pnfs_block_extent { |
11 | struct nfsd4_deviceid vol_id; | |
12 | u64 foff; | |
13 | u64 len; | |
14 | u64 soff; | |
15 | enum pnfs_block_extent_state es; | |
16 | }; | |
8650b8a0 | 17 | |
f99d4fbd CH |
18 | struct pnfs_block_range { |
19 | u64 foff; | |
20 | u64 len; | |
21 | }; | |
22 | ||
8650b8a0 CH |
23 | /* |
24 | * Random upper cap for the uuid length to avoid unbounded allocation. | |
25 | * Not actually limited by the protocol. | |
26 | */ | |
27 | #define PNFS_BLOCK_UUID_LEN 128 | |
28 | ||
29 | struct pnfs_block_volume { | |
30 | enum pnfs_block_volume_type type; | |
31 | union { | |
32 | struct { | |
33 | u64 offset; | |
34 | u32 sig_len; | |
35 | u8 sig[PNFS_BLOCK_UUID_LEN]; | |
36 | } simple; | |
f99d4fbd CH |
37 | struct { |
38 | enum scsi_code_set code_set; | |
39 | enum scsi_designator_type designator_type; | |
40 | int designator_len; | |
41 | u8 designator[256]; | |
42 | u64 pr_key; | |
43 | } scsi; | |
8650b8a0 CH |
44 | }; |
45 | }; | |
46 | ||
47 | struct pnfs_block_deviceaddr { | |
48 | u32 nr_volumes; | |
49 | struct pnfs_block_volume volumes[]; | |
50 | }; | |
51 | ||
52 | __be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr, | |
53 | struct nfsd4_getdeviceinfo *gdp); | |
54 | __be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr, | |
55 | struct nfsd4_layoutget *lgp); | |
56 | int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, | |
57 | u32 block_size); | |
f99d4fbd CH |
58 | int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp, |
59 | u32 block_size); | |
8650b8a0 CH |
60 | |
61 | #endif /* _NFSD_BLOCKLAYOUTXDR_H */ |