bcache.h revision d7db594b8d1dab36b711bd887a9dd21675c87243 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _LINUX_BCACHE_H
20#define _LINUX_BCACHE_H
21#include <asm/types.h>
22#define BITMASK(name,type,field,offset,size) static inline __u64 name(const type * k) \
23{ return(k->field >> offset) & ~(~0ULL << size); } static inline void SET_ ##name(type * k, __u64 v) \
24{ k->field &= ~(~(~0ULL << size) << offset); k->field |= (v & ~(~0ULL << size)) << offset; \
25}
26/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
27struct bkey {
28  __u64 high;
29  __u64 low;
30  __u64 ptr[];
31/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
32};
33#define KEY_FIELD(name,field,offset,size) BITMASK(name, struct bkey, field, offset, size)
34#define PTR_FIELD(name,offset,size) static inline __u64 name(const struct bkey * k, unsigned i) \
35{ return(k->ptr[i] >> offset) & ~(~0ULL << size); } static inline void SET_ ##name(struct bkey * k, unsigned i, __u64 v) \
36{ k->ptr[i] &= ~(~(~0ULL << size) << offset); k->ptr[i] |= (v & ~(~0ULL << size)) << offset; \
37}
38#define KEY_SIZE_BITS 16
39/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
40#define KEY_MAX_U64S 8
41#define KEY(inode,offset,size) \
42((struct bkey) {.high = (1ULL << 63) | ((__u64) (size) << 20) | (inode),.low = (offset) \
43})
44#define ZERO_KEY KEY(0, 0, 0)
45#define MAX_KEY_INODE (~(~0 << 20))
46/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
47#define MAX_KEY_OFFSET (~0ULL >> 1)
48#define MAX_KEY KEY(MAX_KEY_INODE, MAX_KEY_OFFSET, 0)
49#define KEY_START(k) (KEY_OFFSET(k) - KEY_SIZE(k))
50#define START_KEY(k) KEY(KEY_INODE(k), KEY_START(k), 0)
51/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
52#define PTR_DEV_BITS 12
53#define PTR_CHECK_DEV ((1 << PTR_DEV_BITS) - 1)
54#define PTR(gen,offset,dev) ((((__u64) dev) << 51) | ((__u64) offset) << 8 | gen)
55#define bkey_copy(_dest,_src) memcpy(_dest, _src, bkey_bytes(_src))
56/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
57#define BKEY_PAD 8
58#define BKEY_PADDED(key) union { struct bkey key; __u64 key ##_pad[BKEY_PAD]; }
59#define BCACHE_SB_VERSION_CDEV 0
60#define BCACHE_SB_VERSION_BDEV 1
61/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
62#define BCACHE_SB_VERSION_CDEV_WITH_UUID 3
63#define BCACHE_SB_VERSION_BDEV_WITH_OFFSET 4
64#define BCACHE_SB_MAX_VERSION 4
65#define SB_SECTOR 8
66/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
67#define SB_SIZE 4096
68#define SB_LABEL_SIZE 32
69#define SB_JOURNAL_BUCKETS 256U
70#define MAX_CACHES_PER_SET 8
71/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
72#define BDEV_DATA_START_DEFAULT 16
73struct cache_sb {
74  __u64 csum;
75  __u64 offset;
76/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
77  __u64 version;
78  __u8 magic[16];
79  __u8 uuid[16];
80  union {
81/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
82    __u8 set_uuid[16];
83    __u64 set_magic;
84  };
85  __u8 label[SB_LABEL_SIZE];
86/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
87  __u64 flags;
88  __u64 seq;
89  __u64 pad[8];
90  union {
91/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
92    struct {
93      __u64 nbuckets;
94      __u16 block_size;
95      __u16 bucket_size;
96/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
97      __u16 nr_in_set;
98      __u16 nr_this_dev;
99    };
100    struct {
101/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
102      __u64 data_offset;
103    };
104  };
105  __u32 last_mount;
106/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
107  __u16 first_bucket;
108  union {
109    __u16 njournal_buckets;
110    __u16 keys;
111/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
112  };
113  __u64 d[SB_JOURNAL_BUCKETS];
114};
115#define CACHE_REPLACEMENT_LRU 0U
116/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
117#define CACHE_REPLACEMENT_FIFO 1U
118#define CACHE_REPLACEMENT_RANDOM 2U
119#define CACHE_MODE_WRITETHROUGH 0U
120#define CACHE_MODE_WRITEBACK 1U
121/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
122#define CACHE_MODE_WRITEAROUND 2U
123#define CACHE_MODE_NONE 3U
124#define BDEV_STATE_NONE 0U
125#define BDEV_STATE_CLEAN 1U
126/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
127#define BDEV_STATE_DIRTY 2U
128#define BDEV_STATE_STALE 3U
129#define JSET_MAGIC 0x245235c1a3625032ULL
130#define PSET_MAGIC 0x6750e15f87337f91ULL
131/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
132#define BSET_MAGIC 0x90135c78b99e07f5ULL
133#define BCACHE_JSET_VERSION_UUIDv1 1
134#define BCACHE_JSET_VERSION_UUID 1
135#define BCACHE_JSET_VERSION 1
136/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
137struct jset {
138  __u64 csum;
139  __u64 magic;
140  __u64 seq;
141/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
142  __u32 version;
143  __u32 keys;
144  __u64 last_seq;
145  BKEY_PADDED(uuid_bucket);
146/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
147  BKEY_PADDED(btree_root);
148  __u16 btree_level;
149  __u16 pad[3];
150  __u64 prio_bucket[MAX_CACHES_PER_SET];
151/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
152  union {
153    struct bkey start[0];
154    __u64 d[0];
155  };
156/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
157};
158struct prio_set {
159  __u64 csum;
160  __u64 magic;
161/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
162  __u64 seq;
163  __u32 version;
164  __u32 pad;
165  __u64 next_bucket;
166/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
167  struct bucket_disk {
168    __u16 prio;
169    __u8 gen;
170  } __attribute((packed)) data[];
171/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
172};
173struct uuid_entry {
174  union {
175    struct {
176/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
177      __u8 uuid[16];
178      __u8 label[32];
179      __u32 first_reg;
180      __u32 last_reg;
181/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
182      __u32 invalidated;
183      __u32 flags;
184      __u64 sectors;
185    };
186/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
187    __u8 pad[128];
188  };
189};
190#define BCACHE_BSET_CSUM 1
191/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
192#define BCACHE_BSET_VERSION 1
193struct bset {
194  __u64 csum;
195  __u64 magic;
196/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
197  __u64 seq;
198  __u32 version;
199  __u32 keys;
200  union {
201/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
202    struct bkey start[0];
203    __u64 d[0];
204  };
205};
206/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
207struct uuid_entry_v0 {
208  __u8 uuid[16];
209  __u8 label[32];
210  __u32 first_reg;
211/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
212  __u32 last_reg;
213  __u32 invalidated;
214  __u32 pad;
215};
216/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
217#endif
218