1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef CEPH_RADOS_H
3 #define CEPH_RADOS_H
4
5 /*
6 * Data types for the Ceph distributed object storage layer RADOS
7 * (Reliable Autonomic Distributed Object Store).
8 */
9
10 #include <linux/ceph/msgr.h>
11
12 /*
13 * fs id
14 */
15 struct ceph_fsid {
16 unsigned char fsid[16];
17 };
18
ceph_fsid_compare(const struct ceph_fsid * a,const struct ceph_fsid * b)19 static inline int ceph_fsid_compare(const struct ceph_fsid *a,
20 const struct ceph_fsid *b)
21 {
22 return memcmp(a, b, sizeof(*a));
23 }
24
25 /*
26 * ino, object, etc.
27 */
28 typedef __le64 ceph_snapid_t;
29 #define CEPH_SNAPDIR ((__u64)(-1)) /* reserved for hidden .snap dir */
30 #define CEPH_NOSNAP ((__u64)(-2)) /* "head", "live" revision */
31 #define CEPH_MAXSNAP ((__u64)(-3)) /* largest valid snapid */
32
33 struct ceph_timespec {
34 __le32 tv_sec;
35 __le32 tv_nsec;
36 } __attribute__ ((packed));
37
38
39 /*
40 * object layout - how objects are mapped into PGs
41 */
42 #define CEPH_OBJECT_LAYOUT_HASH 1
43 #define CEPH_OBJECT_LAYOUT_LINEAR 2
44 #define CEPH_OBJECT_LAYOUT_HASHINO 3
45
46 /*
47 * pg layout -- how PGs are mapped onto (sets of) OSDs
48 */
49 #define CEPH_PG_LAYOUT_CRUSH 0
50 #define CEPH_PG_LAYOUT_HASH 1
51 #define CEPH_PG_LAYOUT_LINEAR 2
52 #define CEPH_PG_LAYOUT_HYBRID 3
53
54 #define CEPH_PG_MAX_SIZE 32 /* max # osds in a single pg */
55
56 /*
57 * placement group.
58 * we encode this into one __le64.
59 */
60 struct ceph_pg_v1 {
61 __le16 preferred; /* preferred primary osd */
62 __le16 ps; /* placement seed */
63 __le32 pool; /* object pool */
64 } __attribute__ ((packed));
65
66 /*
67 * pg_pool is a set of pgs storing a pool of objects
68 *
69 * pg_num -- base number of pseudorandomly placed pgs
70 *
71 * pgp_num -- effective number when calculating pg placement. this
72 * is used for pg_num increases. new pgs result in data being "split"
73 * into new pgs. for this to proceed smoothly, new pgs are intiially
74 * colocated with their parents; that is, pgp_num doesn't increase
75 * until the new pgs have successfully split. only _then_ are the new
76 * pgs placed independently.
77 *
78 * lpg_num -- localized pg count (per device). replicas are randomly
79 * selected.
80 *
81 * lpgp_num -- as above.
82 */
83 #define CEPH_NOPOOL ((__u64) (-1)) /* pool id not defined */
84
85 #define CEPH_POOL_TYPE_REP 1
86 #define CEPH_POOL_TYPE_RAID4 2 /* never implemented */
87 #define CEPH_POOL_TYPE_EC 3
88
89 /*
90 * stable_mod func is used to control number of placement groups.
91 * similar to straight-up modulo, but produces a stable mapping as b
92 * increases over time. b is the number of bins, and bmask is the
93 * containing power of 2 minus 1.
94 *
95 * b <= bmask and bmask=(2**n)-1
96 * e.g., b=12 -> bmask=15, b=123 -> bmask=127
97 */
ceph_stable_mod(int x,int b,int bmask)98 static inline int ceph_stable_mod(int x, int b, int bmask)
99 {
100 if ((x & bmask) < b)
101 return x & bmask;
102 else
103 return x & (bmask >> 1);
104 }
105
106 /*
107 * object layout - how a given object should be stored.
108 */
109 struct ceph_object_layout {
110 struct ceph_pg_v1 ol_pgid; /* raw pg, with _full_ ps precision. */
111 __le32 ol_stripe_unit; /* for per-object parity, if any */
112 } __attribute__ ((packed));
113
114 /*
115 * compound epoch+version, used by storage layer to serialize mutations
116 */
117 struct ceph_eversion {
118 __le64 version;
119 __le32 epoch;
120 } __attribute__ ((packed));
121
122 /*
123 * osd map bits
124 */
125
126 /* status bits */
127 #define CEPH_OSD_EXISTS (1<<0)
128 #define CEPH_OSD_UP (1<<1)
129 #define CEPH_OSD_AUTOOUT (1<<2) /* osd was automatically marked out */
130 #define CEPH_OSD_NEW (1<<3) /* osd is new, never marked in */
131
132 extern const char *ceph_osd_state_name(int s);
133
134 /* osd weights. fixed point value: 0x10000 == 1.0 ("in"), 0 == "out" */
135 #define CEPH_OSD_IN 0x10000
136 #define CEPH_OSD_OUT 0
137
138 /* osd primary-affinity. fixed point value: 0x10000 == baseline */
139 #define CEPH_OSD_MAX_PRIMARY_AFFINITY 0x10000
140 #define CEPH_OSD_DEFAULT_PRIMARY_AFFINITY 0x10000
141
142
143 /*
144 * osd map flag bits
145 */
146 #define CEPH_OSDMAP_NEARFULL (1<<0) /* sync writes (near ENOSPC),
147 not set since ~luminous */
148 #define CEPH_OSDMAP_FULL (1<<1) /* no data writes (ENOSPC),
149 not set since ~luminous */
150 #define CEPH_OSDMAP_PAUSERD (1<<2) /* pause all reads */
151 #define CEPH_OSDMAP_PAUSEWR (1<<3) /* pause all writes */
152 #define CEPH_OSDMAP_PAUSEREC (1<<4) /* pause recovery */
153 #define CEPH_OSDMAP_NOUP (1<<5) /* block osd boot */
154 #define CEPH_OSDMAP_NODOWN (1<<6) /* block osd mark-down/failure */
155 #define CEPH_OSDMAP_NOOUT (1<<7) /* block osd auto mark-out */
156 #define CEPH_OSDMAP_NOIN (1<<8) /* block osd auto mark-in */
157 #define CEPH_OSDMAP_NOBACKFILL (1<<9) /* block osd backfill */
158 #define CEPH_OSDMAP_NORECOVER (1<<10) /* block osd recovery and backfill */
159 #define CEPH_OSDMAP_NOSCRUB (1<<11) /* block periodic scrub */
160 #define CEPH_OSDMAP_NODEEP_SCRUB (1<<12) /* block periodic deep-scrub */
161 #define CEPH_OSDMAP_NOTIERAGENT (1<<13) /* disable tiering agent */
162 #define CEPH_OSDMAP_NOREBALANCE (1<<14) /* block osd backfill unless pg is degraded */
163 #define CEPH_OSDMAP_SORTBITWISE (1<<15) /* use bitwise hobject_t sort */
164 #define CEPH_OSDMAP_REQUIRE_JEWEL (1<<16) /* require jewel for booting osds */
165 #define CEPH_OSDMAP_REQUIRE_KRAKEN (1<<17) /* require kraken for booting osds */
166 #define CEPH_OSDMAP_REQUIRE_LUMINOUS (1<<18) /* require l for booting osds */
167 #define CEPH_OSDMAP_RECOVERY_DELETES (1<<19) /* deletes performed during recovery instead of peering */
168
169 /*
170 * The error code to return when an OSD can't handle a write
171 * because it is too large.
172 */
173 #define OSD_WRITETOOBIG EMSGSIZE
174
175 /*
176 * osd ops
177 *
178 * WARNING: do not use these op codes directly. Use the helpers
179 * defined below instead. In certain cases, op code behavior was
180 * redefined, resulting in special-cases in the helpers.
181 */
182 #define CEPH_OSD_OP_MODE 0xf000
183 #define CEPH_OSD_OP_MODE_RD 0x1000
184 #define CEPH_OSD_OP_MODE_WR 0x2000
185 #define CEPH_OSD_OP_MODE_RMW 0x3000
186 #define CEPH_OSD_OP_MODE_SUB 0x4000
187 #define CEPH_OSD_OP_MODE_CACHE 0x8000
188
189 #define CEPH_OSD_OP_TYPE 0x0f00
190 #define CEPH_OSD_OP_TYPE_LOCK 0x0100
191 #define CEPH_OSD_OP_TYPE_DATA 0x0200
192 #define CEPH_OSD_OP_TYPE_ATTR 0x0300
193 #define CEPH_OSD_OP_TYPE_EXEC 0x0400
194 #define CEPH_OSD_OP_TYPE_PG 0x0500
195 #define CEPH_OSD_OP_TYPE_MULTI 0x0600 /* multiobject */
196
197 #define __CEPH_OSD_OP1(mode, nr) \
198 (CEPH_OSD_OP_MODE_##mode | (nr))
199
200 #define __CEPH_OSD_OP(mode, type, nr) \
201 (CEPH_OSD_OP_MODE_##mode | CEPH_OSD_OP_TYPE_##type | (nr))
202
203 #define __CEPH_FORALL_OSD_OPS(f) \
204 /** data **/ \
205 /* read */ \
206 f(READ, __CEPH_OSD_OP(RD, DATA, 1), "read") \
207 f(STAT, __CEPH_OSD_OP(RD, DATA, 2), "stat") \
208 f(MAPEXT, __CEPH_OSD_OP(RD, DATA, 3), "mapext") \
209 \
210 /* fancy read */ \
211 f(MASKTRUNC, __CEPH_OSD_OP(RD, DATA, 4), "masktrunc") \
212 f(SPARSE_READ, __CEPH_OSD_OP(RD, DATA, 5), "sparse-read") \
213 \
214 f(NOTIFY, __CEPH_OSD_OP(RD, DATA, 6), "notify") \
215 f(NOTIFY_ACK, __CEPH_OSD_OP(RD, DATA, 7), "notify-ack") \
216 \
217 /* versioning */ \
218 f(ASSERT_VER, __CEPH_OSD_OP(RD, DATA, 8), "assert-version") \
219 \
220 f(LIST_WATCHERS, __CEPH_OSD_OP(RD, DATA, 9), "list-watchers") \
221 \
222 f(LIST_SNAPS, __CEPH_OSD_OP(RD, DATA, 10), "list-snaps") \
223 \
224 /* sync */ \
225 f(SYNC_READ, __CEPH_OSD_OP(RD, DATA, 11), "sync_read") \
226 \
227 /* write */ \
228 f(WRITE, __CEPH_OSD_OP(WR, DATA, 1), "write") \
229 f(WRITEFULL, __CEPH_OSD_OP(WR, DATA, 2), "writefull") \
230 f(TRUNCATE, __CEPH_OSD_OP(WR, DATA, 3), "truncate") \
231 f(ZERO, __CEPH_OSD_OP(WR, DATA, 4), "zero") \
232 f(DELETE, __CEPH_OSD_OP(WR, DATA, 5), "delete") \
233 \
234 /* fancy write */ \
235 f(APPEND, __CEPH_OSD_OP(WR, DATA, 6), "append") \
236 f(SETTRUNC, __CEPH_OSD_OP(WR, DATA, 8), "settrunc") \
237 f(TRIMTRUNC, __CEPH_OSD_OP(WR, DATA, 9), "trimtrunc") \
238 \
239 f(TMAPUP, __CEPH_OSD_OP(RMW, DATA, 10), "tmapup") \
240 f(TMAPPUT, __CEPH_OSD_OP(WR, DATA, 11), "tmapput") \
241 f(TMAPGET, __CEPH_OSD_OP(RD, DATA, 12), "tmapget") \
242 \
243 f(CREATE, __CEPH_OSD_OP(WR, DATA, 13), "create") \
244 f(ROLLBACK, __CEPH_OSD_OP(WR, DATA, 14), "rollback") \
245 \
246 f(WATCH, __CEPH_OSD_OP(WR, DATA, 15), "watch") \
247 \
248 /* omap */ \
249 f(OMAPGETKEYS, __CEPH_OSD_OP(RD, DATA, 17), "omap-get-keys") \
250 f(OMAPGETVALS, __CEPH_OSD_OP(RD, DATA, 18), "omap-get-vals") \
251 f(OMAPGETHEADER, __CEPH_OSD_OP(RD, DATA, 19), "omap-get-header") \
252 f(OMAPGETVALSBYKEYS, __CEPH_OSD_OP(RD, DATA, 20), "omap-get-vals-by-keys") \
253 f(OMAPSETVALS, __CEPH_OSD_OP(WR, DATA, 21), "omap-set-vals") \
254 f(OMAPSETHEADER, __CEPH_OSD_OP(WR, DATA, 22), "omap-set-header") \
255 f(OMAPCLEAR, __CEPH_OSD_OP(WR, DATA, 23), "omap-clear") \
256 f(OMAPRMKEYS, __CEPH_OSD_OP(WR, DATA, 24), "omap-rm-keys") \
257 f(OMAP_CMP, __CEPH_OSD_OP(RD, DATA, 25), "omap-cmp") \
258 \
259 /* tiering */ \
260 f(COPY_FROM, __CEPH_OSD_OP(WR, DATA, 26), "copy-from") \
261 f(COPY_FROM2, __CEPH_OSD_OP(WR, DATA, 45), "copy-from2") \
262 f(COPY_GET_CLASSIC, __CEPH_OSD_OP(RD, DATA, 27), "copy-get-classic") \
263 f(UNDIRTY, __CEPH_OSD_OP(WR, DATA, 28), "undirty") \
264 f(ISDIRTY, __CEPH_OSD_OP(RD, DATA, 29), "isdirty") \
265 f(COPY_GET, __CEPH_OSD_OP(RD, DATA, 30), "copy-get") \
266 f(CACHE_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 31), "cache-flush") \
267 f(CACHE_EVICT, __CEPH_OSD_OP(CACHE, DATA, 32), "cache-evict") \
268 f(CACHE_TRY_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 33), "cache-try-flush") \
269 \
270 /* convert tmap to omap */ \
271 f(TMAP2OMAP, __CEPH_OSD_OP(RMW, DATA, 34), "tmap2omap") \
272 \
273 /* hints */ \
274 f(SETALLOCHINT, __CEPH_OSD_OP(WR, DATA, 35), "set-alloc-hint") \
275 \
276 /** multi **/ \
277 f(CLONERANGE, __CEPH_OSD_OP(WR, MULTI, 1), "clonerange") \
278 f(ASSERT_SRC_VERSION, __CEPH_OSD_OP(RD, MULTI, 2), "assert-src-version") \
279 f(SRC_CMPXATTR, __CEPH_OSD_OP(RD, MULTI, 3), "src-cmpxattr") \
280 \
281 /** attrs **/ \
282 /* read */ \
283 f(GETXATTR, __CEPH_OSD_OP(RD, ATTR, 1), "getxattr") \
284 f(GETXATTRS, __CEPH_OSD_OP(RD, ATTR, 2), "getxattrs") \
285 f(CMPXATTR, __CEPH_OSD_OP(RD, ATTR, 3), "cmpxattr") \
286 \
287 /* write */ \
288 f(SETXATTR, __CEPH_OSD_OP(WR, ATTR, 1), "setxattr") \
289 f(SETXATTRS, __CEPH_OSD_OP(WR, ATTR, 2), "setxattrs") \
290 f(RESETXATTRS, __CEPH_OSD_OP(WR, ATTR, 3), "resetxattrs") \
291 f(RMXATTR, __CEPH_OSD_OP(WR, ATTR, 4), "rmxattr") \
292 \
293 /** subop **/ \
294 f(PULL, __CEPH_OSD_OP1(SUB, 1), "pull") \
295 f(PUSH, __CEPH_OSD_OP1(SUB, 2), "push") \
296 f(BALANCEREADS, __CEPH_OSD_OP1(SUB, 3), "balance-reads") \
297 f(UNBALANCEREADS, __CEPH_OSD_OP1(SUB, 4), "unbalance-reads") \
298 f(SCRUB, __CEPH_OSD_OP1(SUB, 5), "scrub") \
299 f(SCRUB_RESERVE, __CEPH_OSD_OP1(SUB, 6), "scrub-reserve") \
300 f(SCRUB_UNRESERVE, __CEPH_OSD_OP1(SUB, 7), "scrub-unreserve") \
301 f(SCRUB_STOP, __CEPH_OSD_OP1(SUB, 8), "scrub-stop") \
302 f(SCRUB_MAP, __CEPH_OSD_OP1(SUB, 9), "scrub-map") \
303 \
304 /** lock **/ \
305 f(WRLOCK, __CEPH_OSD_OP(WR, LOCK, 1), "wrlock") \
306 f(WRUNLOCK, __CEPH_OSD_OP(WR, LOCK, 2), "wrunlock") \
307 f(RDLOCK, __CEPH_OSD_OP(WR, LOCK, 3), "rdlock") \
308 f(RDUNLOCK, __CEPH_OSD_OP(WR, LOCK, 4), "rdunlock") \
309 f(UPLOCK, __CEPH_OSD_OP(WR, LOCK, 5), "uplock") \
310 f(DNLOCK, __CEPH_OSD_OP(WR, LOCK, 6), "dnlock") \
311 \
312 /** exec **/ \
313 /* note: the RD bit here is wrong; see special-case below in helper */ \
314 f(CALL, __CEPH_OSD_OP(RD, EXEC, 1), "call") \
315 \
316 /** pg **/ \
317 f(PGLS, __CEPH_OSD_OP(RD, PG, 1), "pgls") \
318 f(PGLS_FILTER, __CEPH_OSD_OP(RD, PG, 2), "pgls-filter") \
319 f(PG_HITSET_LS, __CEPH_OSD_OP(RD, PG, 3), "pg-hitset-ls") \
320 f(PG_HITSET_GET, __CEPH_OSD_OP(RD, PG, 4), "pg-hitset-get")
321
322 enum {
323 #define GENERATE_ENUM_ENTRY(op, opcode, str) CEPH_OSD_OP_##op = (opcode),
324 __CEPH_FORALL_OSD_OPS(GENERATE_ENUM_ENTRY)
325 #undef GENERATE_ENUM_ENTRY
326 };
327
ceph_osd_op_type_lock(int op)328 static inline int ceph_osd_op_type_lock(int op)
329 {
330 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_LOCK;
331 }
ceph_osd_op_type_data(int op)332 static inline int ceph_osd_op_type_data(int op)
333 {
334 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_DATA;
335 }
ceph_osd_op_type_attr(int op)336 static inline int ceph_osd_op_type_attr(int op)
337 {
338 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_ATTR;
339 }
ceph_osd_op_type_exec(int op)340 static inline int ceph_osd_op_type_exec(int op)
341 {
342 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_EXEC;
343 }
ceph_osd_op_type_pg(int op)344 static inline int ceph_osd_op_type_pg(int op)
345 {
346 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG;
347 }
ceph_osd_op_type_multi(int op)348 static inline int ceph_osd_op_type_multi(int op)
349 {
350 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_MULTI;
351 }
352
ceph_osd_op_mode_subop(int op)353 static inline int ceph_osd_op_mode_subop(int op)
354 {
355 return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_SUB;
356 }
ceph_osd_op_mode_read(int op)357 static inline int ceph_osd_op_mode_read(int op)
358 {
359 return (op & CEPH_OSD_OP_MODE_RD) &&
360 op != CEPH_OSD_OP_CALL;
361 }
ceph_osd_op_mode_modify(int op)362 static inline int ceph_osd_op_mode_modify(int op)
363 {
364 return op & CEPH_OSD_OP_MODE_WR;
365 }
366
367 /*
368 * note that the following tmap stuff is also defined in the ceph librados.h
369 * any modification here needs to be updated there
370 */
371 #define CEPH_OSD_TMAP_HDR 'h'
372 #define CEPH_OSD_TMAP_SET 's'
373 #define CEPH_OSD_TMAP_CREATE 'c' /* create key */
374 #define CEPH_OSD_TMAP_RM 'r'
375 #define CEPH_OSD_TMAP_RMSLOPPY 'R'
376
377 extern const char *ceph_osd_op_name(int op);
378
379 /*
380 * osd op flags
381 *
382 * An op may be READ, WRITE, or READ|WRITE.
383 */
384 enum {
385 CEPH_OSD_FLAG_ACK = 0x0001, /* want (or is) "ack" ack */
386 CEPH_OSD_FLAG_ONNVRAM = 0x0002, /* want (or is) "onnvram" ack */
387 CEPH_OSD_FLAG_ONDISK = 0x0004, /* want (or is) "ondisk" ack */
388 CEPH_OSD_FLAG_RETRY = 0x0008, /* resend attempt */
389 CEPH_OSD_FLAG_READ = 0x0010, /* op may read */
390 CEPH_OSD_FLAG_WRITE = 0x0020, /* op may write */
391 CEPH_OSD_FLAG_ORDERSNAP = 0x0040, /* EOLDSNAP if snapc is out of order */
392 CEPH_OSD_FLAG_PEERSTAT_OLD = 0x0080, /* DEPRECATED msg includes osd_peer_stat */
393 CEPH_OSD_FLAG_BALANCE_READS = 0x0100,
394 CEPH_OSD_FLAG_PARALLELEXEC = 0x0200, /* execute op in parallel */
395 CEPH_OSD_FLAG_PGOP = 0x0400, /* pg op, no object */
396 CEPH_OSD_FLAG_EXEC = 0x0800, /* op may exec */
397 CEPH_OSD_FLAG_EXEC_PUBLIC = 0x1000, /* DEPRECATED op may exec (public) */
398 CEPH_OSD_FLAG_LOCALIZE_READS = 0x2000, /* read from nearby replica, if any */
399 CEPH_OSD_FLAG_RWORDERED = 0x4000, /* order wrt concurrent reads */
400 CEPH_OSD_FLAG_IGNORE_CACHE = 0x8000, /* ignore cache logic */
401 CEPH_OSD_FLAG_SKIPRWLOCKS = 0x10000, /* skip rw locks */
402 CEPH_OSD_FLAG_IGNORE_OVERLAY = 0x20000, /* ignore pool overlay */
403 CEPH_OSD_FLAG_FLUSH = 0x40000, /* this is part of flush */
404 CEPH_OSD_FLAG_MAP_SNAP_CLONE = 0x80000, /* map snap direct to clone id */
405 CEPH_OSD_FLAG_ENFORCE_SNAPC = 0x100000, /* use snapc provided even if
406 pool uses pool snaps */
407 CEPH_OSD_FLAG_REDIRECTED = 0x200000, /* op has been redirected */
408 CEPH_OSD_FLAG_KNOWN_REDIR = 0x400000, /* redirect bit is authoritative */
409 CEPH_OSD_FLAG_FULL_TRY = 0x800000, /* try op despite full flag */
410 CEPH_OSD_FLAG_FULL_FORCE = 0x1000000, /* force op despite full flag */
411 };
412
413 enum {
414 CEPH_OSD_OP_FLAG_EXCL = 1, /* EXCL object create */
415 CEPH_OSD_OP_FLAG_FAILOK = 2, /* continue despite failure */
416 CEPH_OSD_OP_FLAG_FADVISE_RANDOM = 0x4, /* the op is random */
417 CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL = 0x8, /* the op is sequential */
418 CEPH_OSD_OP_FLAG_FADVISE_WILLNEED = 0x10,/* data will be accessed in
419 the near future */
420 CEPH_OSD_OP_FLAG_FADVISE_DONTNEED = 0x20,/* data will not be accessed
421 in the near future */
422 CEPH_OSD_OP_FLAG_FADVISE_NOCACHE = 0x40,/* data will be accessed only
423 once by this client */
424 };
425
426 #define EOLDSNAPC ERESTART /* ORDERSNAP flag set; writer has old snapc*/
427 #define EBLOCKLISTED ESHUTDOWN /* blocklisted */
428
429 /* xattr comparison */
430 enum {
431 CEPH_OSD_CMPXATTR_OP_NOP = 0,
432 CEPH_OSD_CMPXATTR_OP_EQ = 1,
433 CEPH_OSD_CMPXATTR_OP_NE = 2,
434 CEPH_OSD_CMPXATTR_OP_GT = 3,
435 CEPH_OSD_CMPXATTR_OP_GTE = 4,
436 CEPH_OSD_CMPXATTR_OP_LT = 5,
437 CEPH_OSD_CMPXATTR_OP_LTE = 6
438 };
439
440 enum {
441 CEPH_OSD_CMPXATTR_MODE_STRING = 1,
442 CEPH_OSD_CMPXATTR_MODE_U64 = 2
443 };
444
445 enum {
446 CEPH_OSD_COPY_FROM_FLAG_FLUSH = 1, /* part of a flush operation */
447 CEPH_OSD_COPY_FROM_FLAG_IGNORE_OVERLAY = 2, /* ignore pool overlay */
448 CEPH_OSD_COPY_FROM_FLAG_IGNORE_CACHE = 4, /* ignore osd cache logic */
449 CEPH_OSD_COPY_FROM_FLAG_MAP_SNAP_CLONE = 8, /* map snap direct to
450 * cloneid */
451 CEPH_OSD_COPY_FROM_FLAG_RWORDERED = 16, /* order with write */
452 CEPH_OSD_COPY_FROM_FLAG_TRUNCATE_SEQ = 32, /* send truncate_{seq,size} */
453 };
454
455 enum {
456 CEPH_OSD_WATCH_OP_UNWATCH = 0,
457 CEPH_OSD_WATCH_OP_LEGACY_WATCH = 1,
458 /* note: use only ODD ids to prevent pre-giant code from
459 interpreting the op as UNWATCH */
460 CEPH_OSD_WATCH_OP_WATCH = 3,
461 CEPH_OSD_WATCH_OP_RECONNECT = 5,
462 CEPH_OSD_WATCH_OP_PING = 7,
463 };
464
465 const char *ceph_osd_watch_op_name(int o);
466
467 enum {
468 CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_WRITE = 1,
469 CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_WRITE = 2,
470 CEPH_OSD_ALLOC_HINT_FLAG_SEQUENTIAL_READ = 4,
471 CEPH_OSD_ALLOC_HINT_FLAG_RANDOM_READ = 8,
472 CEPH_OSD_ALLOC_HINT_FLAG_APPEND_ONLY = 16,
473 CEPH_OSD_ALLOC_HINT_FLAG_IMMUTABLE = 32,
474 CEPH_OSD_ALLOC_HINT_FLAG_SHORTLIVED = 64,
475 CEPH_OSD_ALLOC_HINT_FLAG_LONGLIVED = 128,
476 CEPH_OSD_ALLOC_HINT_FLAG_COMPRESSIBLE = 256,
477 CEPH_OSD_ALLOC_HINT_FLAG_INCOMPRESSIBLE = 512,
478 };
479
480 enum {
481 CEPH_OSD_BACKOFF_OP_BLOCK = 1,
482 CEPH_OSD_BACKOFF_OP_ACK_BLOCK = 2,
483 CEPH_OSD_BACKOFF_OP_UNBLOCK = 3,
484 };
485
486 /*
487 * an individual object operation. each may be accompanied by some data
488 * payload
489 */
490 struct ceph_osd_op {
491 __le16 op; /* CEPH_OSD_OP_* */
492 __le32 flags; /* CEPH_OSD_OP_FLAG_* */
493 union {
494 struct {
495 __le64 offset, length;
496 __le64 truncate_size;
497 __le32 truncate_seq;
498 } __attribute__ ((packed)) extent;
499 struct {
500 __le32 name_len;
501 __le32 value_len;
502 __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
503 __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
504 } __attribute__ ((packed)) xattr;
505 struct {
506 __u8 class_len;
507 __u8 method_len;
508 __u8 argc;
509 __le32 indata_len;
510 } __attribute__ ((packed)) cls;
511 struct {
512 __le64 cookie, count;
513 } __attribute__ ((packed)) pgls;
514 struct {
515 __le64 snapid;
516 } __attribute__ ((packed)) snap;
517 struct {
518 __le64 cookie;
519 __le64 ver; /* no longer used */
520 __u8 op; /* CEPH_OSD_WATCH_OP_* */
521 __le32 gen; /* registration generation */
522 } __attribute__ ((packed)) watch;
523 struct {
524 __le64 cookie;
525 } __attribute__ ((packed)) notify;
526 struct {
527 __le64 unused;
528 __le64 ver;
529 } __attribute__ ((packed)) assert_ver;
530 struct {
531 __le64 offset, length;
532 __le64 src_offset;
533 } __attribute__ ((packed)) clonerange;
534 struct {
535 __le64 expected_object_size;
536 __le64 expected_write_size;
537 __le32 flags; /* CEPH_OSD_OP_ALLOC_HINT_FLAG_* */
538 } __attribute__ ((packed)) alloc_hint;
539 struct {
540 __le64 snapid;
541 __le64 src_version;
542 __u8 flags; /* CEPH_OSD_COPY_FROM_FLAG_* */
543 /*
544 * CEPH_OSD_OP_FLAG_FADVISE_*: fadvise flags
545 * for src object, flags for dest object are in
546 * ceph_osd_op::flags.
547 */
548 __le32 src_fadvise_flags;
549 } __attribute__ ((packed)) copy_from;
550 };
551 __le32 payload_len;
552 } __attribute__ ((packed));
553
554
555 #endif
556