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 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 */ 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 #define CEPH_OSDMAP_FULL (1<<1) /* no data writes (ENOSPC) */ 148 #define CEPH_OSDMAP_PAUSERD (1<<2) /* pause all reads */ 149 #define CEPH_OSDMAP_PAUSEWR (1<<3) /* pause all writes */ 150 #define CEPH_OSDMAP_PAUSEREC (1<<4) /* pause recovery */ 151 #define CEPH_OSDMAP_NOUP (1<<5) /* block osd boot */ 152 #define CEPH_OSDMAP_NODOWN (1<<6) /* block osd mark-down/failure */ 153 #define CEPH_OSDMAP_NOOUT (1<<7) /* block osd auto mark-out */ 154 #define CEPH_OSDMAP_NOIN (1<<8) /* block osd auto mark-in */ 155 #define CEPH_OSDMAP_NOBACKFILL (1<<9) /* block osd backfill */ 156 #define CEPH_OSDMAP_NORECOVER (1<<10) /* block osd recovery and backfill */ 157 #define CEPH_OSDMAP_NOSCRUB (1<<11) /* block periodic scrub */ 158 #define CEPH_OSDMAP_NODEEP_SCRUB (1<<12) /* block periodic deep-scrub */ 159 #define CEPH_OSDMAP_NOTIERAGENT (1<<13) /* disable tiering agent */ 160 #define CEPH_OSDMAP_NOREBALANCE (1<<14) /* block osd backfill unless pg is degraded */ 161 #define CEPH_OSDMAP_SORTBITWISE (1<<15) /* use bitwise hobject_t sort */ 162 #define CEPH_OSDMAP_REQUIRE_JEWEL (1<<16) /* require jewel for booting osds */ 163 #define CEPH_OSDMAP_REQUIRE_KRAKEN (1<<17) /* require kraken for booting osds */ 164 #define CEPH_OSDMAP_REQUIRE_LUMINOUS (1<<18) /* require l for booting osds */ 165 #define CEPH_OSDMAP_RECOVERY_DELETES (1<<19) /* deletes performed during recovery instead of peering */ 166 167 /* 168 * The error code to return when an OSD can't handle a write 169 * because it is too large. 170 */ 171 #define OSD_WRITETOOBIG EMSGSIZE 172 173 /* 174 * osd ops 175 * 176 * WARNING: do not use these op codes directly. Use the helpers 177 * defined below instead. In certain cases, op code behavior was 178 * redefined, resulting in special-cases in the helpers. 179 */ 180 #define CEPH_OSD_OP_MODE 0xf000 181 #define CEPH_OSD_OP_MODE_RD 0x1000 182 #define CEPH_OSD_OP_MODE_WR 0x2000 183 #define CEPH_OSD_OP_MODE_RMW 0x3000 184 #define CEPH_OSD_OP_MODE_SUB 0x4000 185 #define CEPH_OSD_OP_MODE_CACHE 0x8000 186 187 #define CEPH_OSD_OP_TYPE 0x0f00 188 #define CEPH_OSD_OP_TYPE_LOCK 0x0100 189 #define CEPH_OSD_OP_TYPE_DATA 0x0200 190 #define CEPH_OSD_OP_TYPE_ATTR 0x0300 191 #define CEPH_OSD_OP_TYPE_EXEC 0x0400 192 #define CEPH_OSD_OP_TYPE_PG 0x0500 193 #define CEPH_OSD_OP_TYPE_MULTI 0x0600 /* multiobject */ 194 195 #define __CEPH_OSD_OP1(mode, nr) \ 196 (CEPH_OSD_OP_MODE_##mode | (nr)) 197 198 #define __CEPH_OSD_OP(mode, type, nr) \ 199 (CEPH_OSD_OP_MODE_##mode | CEPH_OSD_OP_TYPE_##type | (nr)) 200 201 #define __CEPH_FORALL_OSD_OPS(f) \ 202 /** data **/ \ 203 /* read */ \ 204 f(READ, __CEPH_OSD_OP(RD, DATA, 1), "read") \ 205 f(STAT, __CEPH_OSD_OP(RD, DATA, 2), "stat") \ 206 f(MAPEXT, __CEPH_OSD_OP(RD, DATA, 3), "mapext") \ 207 \ 208 /* fancy read */ \ 209 f(MASKTRUNC, __CEPH_OSD_OP(RD, DATA, 4), "masktrunc") \ 210 f(SPARSE_READ, __CEPH_OSD_OP(RD, DATA, 5), "sparse-read") \ 211 \ 212 f(NOTIFY, __CEPH_OSD_OP(RD, DATA, 6), "notify") \ 213 f(NOTIFY_ACK, __CEPH_OSD_OP(RD, DATA, 7), "notify-ack") \ 214 \ 215 /* versioning */ \ 216 f(ASSERT_VER, __CEPH_OSD_OP(RD, DATA, 8), "assert-version") \ 217 \ 218 f(LIST_WATCHERS, __CEPH_OSD_OP(RD, DATA, 9), "list-watchers") \ 219 \ 220 f(LIST_SNAPS, __CEPH_OSD_OP(RD, DATA, 10), "list-snaps") \ 221 \ 222 /* sync */ \ 223 f(SYNC_READ, __CEPH_OSD_OP(RD, DATA, 11), "sync_read") \ 224 \ 225 /* write */ \ 226 f(WRITE, __CEPH_OSD_OP(WR, DATA, 1), "write") \ 227 f(WRITEFULL, __CEPH_OSD_OP(WR, DATA, 2), "writefull") \ 228 f(TRUNCATE, __CEPH_OSD_OP(WR, DATA, 3), "truncate") \ 229 f(ZERO, __CEPH_OSD_OP(WR, DATA, 4), "zero") \ 230 f(DELETE, __CEPH_OSD_OP(WR, DATA, 5), "delete") \ 231 \ 232 /* fancy write */ \ 233 f(APPEND, __CEPH_OSD_OP(WR, DATA, 6), "append") \ 234 f(SETTRUNC, __CEPH_OSD_OP(WR, DATA, 8), "settrunc") \ 235 f(TRIMTRUNC, __CEPH_OSD_OP(WR, DATA, 9), "trimtrunc") \ 236 \ 237 f(TMAPUP, __CEPH_OSD_OP(RMW, DATA, 10), "tmapup") \ 238 f(TMAPPUT, __CEPH_OSD_OP(WR, DATA, 11), "tmapput") \ 239 f(TMAPGET, __CEPH_OSD_OP(RD, DATA, 12), "tmapget") \ 240 \ 241 f(CREATE, __CEPH_OSD_OP(WR, DATA, 13), "create") \ 242 f(ROLLBACK, __CEPH_OSD_OP(WR, DATA, 14), "rollback") \ 243 \ 244 f(WATCH, __CEPH_OSD_OP(WR, DATA, 15), "watch") \ 245 \ 246 /* omap */ \ 247 f(OMAPGETKEYS, __CEPH_OSD_OP(RD, DATA, 17), "omap-get-keys") \ 248 f(OMAPGETVALS, __CEPH_OSD_OP(RD, DATA, 18), "omap-get-vals") \ 249 f(OMAPGETHEADER, __CEPH_OSD_OP(RD, DATA, 19), "omap-get-header") \ 250 f(OMAPGETVALSBYKEYS, __CEPH_OSD_OP(RD, DATA, 20), "omap-get-vals-by-keys") \ 251 f(OMAPSETVALS, __CEPH_OSD_OP(WR, DATA, 21), "omap-set-vals") \ 252 f(OMAPSETHEADER, __CEPH_OSD_OP(WR, DATA, 22), "omap-set-header") \ 253 f(OMAPCLEAR, __CEPH_OSD_OP(WR, DATA, 23), "omap-clear") \ 254 f(OMAPRMKEYS, __CEPH_OSD_OP(WR, DATA, 24), "omap-rm-keys") \ 255 f(OMAP_CMP, __CEPH_OSD_OP(RD, DATA, 25), "omap-cmp") \ 256 \ 257 /* tiering */ \ 258 f(COPY_FROM, __CEPH_OSD_OP(WR, DATA, 26), "copy-from") \ 259 f(COPY_GET_CLASSIC, __CEPH_OSD_OP(RD, DATA, 27), "copy-get-classic") \ 260 f(UNDIRTY, __CEPH_OSD_OP(WR, DATA, 28), "undirty") \ 261 f(ISDIRTY, __CEPH_OSD_OP(RD, DATA, 29), "isdirty") \ 262 f(COPY_GET, __CEPH_OSD_OP(RD, DATA, 30), "copy-get") \ 263 f(CACHE_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 31), "cache-flush") \ 264 f(CACHE_EVICT, __CEPH_OSD_OP(CACHE, DATA, 32), "cache-evict") \ 265 f(CACHE_TRY_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 33), "cache-try-flush") \ 266 \ 267 /* convert tmap to omap */ \ 268 f(TMAP2OMAP, __CEPH_OSD_OP(RMW, DATA, 34), "tmap2omap") \ 269 \ 270 /* hints */ \ 271 f(SETALLOCHINT, __CEPH_OSD_OP(WR, DATA, 35), "set-alloc-hint") \ 272 \ 273 /** multi **/ \ 274 f(CLONERANGE, __CEPH_OSD_OP(WR, MULTI, 1), "clonerange") \ 275 f(ASSERT_SRC_VERSION, __CEPH_OSD_OP(RD, MULTI, 2), "assert-src-version") \ 276 f(SRC_CMPXATTR, __CEPH_OSD_OP(RD, MULTI, 3), "src-cmpxattr") \ 277 \ 278 /** attrs **/ \ 279 /* read */ \ 280 f(GETXATTR, __CEPH_OSD_OP(RD, ATTR, 1), "getxattr") \ 281 f(GETXATTRS, __CEPH_OSD_OP(RD, ATTR, 2), "getxattrs") \ 282 f(CMPXATTR, __CEPH_OSD_OP(RD, ATTR, 3), "cmpxattr") \ 283 \ 284 /* write */ \ 285 f(SETXATTR, __CEPH_OSD_OP(WR, ATTR, 1), "setxattr") \ 286 f(SETXATTRS, __CEPH_OSD_OP(WR, ATTR, 2), "setxattrs") \ 287 f(RESETXATTRS, __CEPH_OSD_OP(WR, ATTR, 3), "resetxattrs") \ 288 f(RMXATTR, __CEPH_OSD_OP(WR, ATTR, 4), "rmxattr") \ 289 \ 290 /** subop **/ \ 291 f(PULL, __CEPH_OSD_OP1(SUB, 1), "pull") \ 292 f(PUSH, __CEPH_OSD_OP1(SUB, 2), "push") \ 293 f(BALANCEREADS, __CEPH_OSD_OP1(SUB, 3), "balance-reads") \ 294 f(UNBALANCEREADS, __CEPH_OSD_OP1(SUB, 4), "unbalance-reads") \ 295 f(SCRUB, __CEPH_OSD_OP1(SUB, 5), "scrub") \ 296 f(SCRUB_RESERVE, __CEPH_OSD_OP1(SUB, 6), "scrub-reserve") \ 297 f(SCRUB_UNRESERVE, __CEPH_OSD_OP1(SUB, 7), "scrub-unreserve") \ 298 f(SCRUB_STOP, __CEPH_OSD_OP1(SUB, 8), "scrub-stop") \ 299 f(SCRUB_MAP, __CEPH_OSD_OP1(SUB, 9), "scrub-map") \ 300 \ 301 /** lock **/ \ 302 f(WRLOCK, __CEPH_OSD_OP(WR, LOCK, 1), "wrlock") \ 303 f(WRUNLOCK, __CEPH_OSD_OP(WR, LOCK, 2), "wrunlock") \ 304 f(RDLOCK, __CEPH_OSD_OP(WR, LOCK, 3), "rdlock") \ 305 f(RDUNLOCK, __CEPH_OSD_OP(WR, LOCK, 4), "rdunlock") \ 306 f(UPLOCK, __CEPH_OSD_OP(WR, LOCK, 5), "uplock") \ 307 f(DNLOCK, __CEPH_OSD_OP(WR, LOCK, 6), "dnlock") \ 308 \ 309 /** exec **/ \ 310 /* note: the RD bit here is wrong; see special-case below in helper */ \ 311 f(CALL, __CEPH_OSD_OP(RD, EXEC, 1), "call") \ 312 \ 313 /** pg **/ \ 314 f(PGLS, __CEPH_OSD_OP(RD, PG, 1), "pgls") \ 315 f(PGLS_FILTER, __CEPH_OSD_OP(RD, PG, 2), "pgls-filter") \ 316 f(PG_HITSET_LS, __CEPH_OSD_OP(RD, PG, 3), "pg-hitset-ls") \ 317 f(PG_HITSET_GET, __CEPH_OSD_OP(RD, PG, 4), "pg-hitset-get") 318 319 enum { 320 #define GENERATE_ENUM_ENTRY(op, opcode, str) CEPH_OSD_OP_##op = (opcode), 321 __CEPH_FORALL_OSD_OPS(GENERATE_ENUM_ENTRY) 322 #undef GENERATE_ENUM_ENTRY 323 }; 324 325 static inline int ceph_osd_op_type_lock(int op) 326 { 327 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_LOCK; 328 } 329 static inline int ceph_osd_op_type_data(int op) 330 { 331 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_DATA; 332 } 333 static inline int ceph_osd_op_type_attr(int op) 334 { 335 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_ATTR; 336 } 337 static inline int ceph_osd_op_type_exec(int op) 338 { 339 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_EXEC; 340 } 341 static inline int ceph_osd_op_type_pg(int op) 342 { 343 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG; 344 } 345 static inline int ceph_osd_op_type_multi(int op) 346 { 347 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_MULTI; 348 } 349 350 static inline int ceph_osd_op_mode_subop(int op) 351 { 352 return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_SUB; 353 } 354 static inline int ceph_osd_op_mode_read(int op) 355 { 356 return (op & CEPH_OSD_OP_MODE_RD) && 357 op != CEPH_OSD_OP_CALL; 358 } 359 static inline int ceph_osd_op_mode_modify(int op) 360 { 361 return op & CEPH_OSD_OP_MODE_WR; 362 } 363 364 /* 365 * note that the following tmap stuff is also defined in the ceph librados.h 366 * any modification here needs to be updated there 367 */ 368 #define CEPH_OSD_TMAP_HDR 'h' 369 #define CEPH_OSD_TMAP_SET 's' 370 #define CEPH_OSD_TMAP_CREATE 'c' /* create key */ 371 #define CEPH_OSD_TMAP_RM 'r' 372 #define CEPH_OSD_TMAP_RMSLOPPY 'R' 373 374 extern const char *ceph_osd_op_name(int op); 375 376 /* 377 * osd op flags 378 * 379 * An op may be READ, WRITE, or READ|WRITE. 380 */ 381 enum { 382 CEPH_OSD_FLAG_ACK = 0x0001, /* want (or is) "ack" ack */ 383 CEPH_OSD_FLAG_ONNVRAM = 0x0002, /* want (or is) "onnvram" ack */ 384 CEPH_OSD_FLAG_ONDISK = 0x0004, /* want (or is) "ondisk" ack */ 385 CEPH_OSD_FLAG_RETRY = 0x0008, /* resend attempt */ 386 CEPH_OSD_FLAG_READ = 0x0010, /* op may read */ 387 CEPH_OSD_FLAG_WRITE = 0x0020, /* op may write */ 388 CEPH_OSD_FLAG_ORDERSNAP = 0x0040, /* EOLDSNAP if snapc is out of order */ 389 CEPH_OSD_FLAG_PEERSTAT_OLD = 0x0080, /* DEPRECATED msg includes osd_peer_stat */ 390 CEPH_OSD_FLAG_BALANCE_READS = 0x0100, 391 CEPH_OSD_FLAG_PARALLELEXEC = 0x0200, /* execute op in parallel */ 392 CEPH_OSD_FLAG_PGOP = 0x0400, /* pg op, no object */ 393 CEPH_OSD_FLAG_EXEC = 0x0800, /* op may exec */ 394 CEPH_OSD_FLAG_EXEC_PUBLIC = 0x1000, /* DEPRECATED op may exec (public) */ 395 CEPH_OSD_FLAG_LOCALIZE_READS = 0x2000, /* read from nearby replica, if any */ 396 CEPH_OSD_FLAG_RWORDERED = 0x4000, /* order wrt concurrent reads */ 397 CEPH_OSD_FLAG_IGNORE_CACHE = 0x8000, /* ignore cache logic */ 398 CEPH_OSD_FLAG_SKIPRWLOCKS = 0x10000, /* skip rw locks */ 399 CEPH_OSD_FLAG_IGNORE_OVERLAY = 0x20000, /* ignore pool overlay */ 400 CEPH_OSD_FLAG_FLUSH = 0x40000, /* this is part of flush */ 401 CEPH_OSD_FLAG_MAP_SNAP_CLONE = 0x80000, /* map snap direct to clone id */ 402 CEPH_OSD_FLAG_ENFORCE_SNAPC = 0x100000, /* use snapc provided even if 403 pool uses pool snaps */ 404 CEPH_OSD_FLAG_REDIRECTED = 0x200000, /* op has been redirected */ 405 CEPH_OSD_FLAG_KNOWN_REDIR = 0x400000, /* redirect bit is authoritative */ 406 CEPH_OSD_FLAG_FULL_TRY = 0x800000, /* try op despite full flag */ 407 CEPH_OSD_FLAG_FULL_FORCE = 0x1000000, /* force op despite full flag */ 408 }; 409 410 enum { 411 CEPH_OSD_OP_FLAG_EXCL = 1, /* EXCL object create */ 412 CEPH_OSD_OP_FLAG_FAILOK = 2, /* continue despite failure */ 413 }; 414 415 #define EOLDSNAPC ERESTART /* ORDERSNAP flag set; writer has old snapc*/ 416 #define EBLACKLISTED ESHUTDOWN /* blacklisted */ 417 418 /* xattr comparison */ 419 enum { 420 CEPH_OSD_CMPXATTR_OP_NOP = 0, 421 CEPH_OSD_CMPXATTR_OP_EQ = 1, 422 CEPH_OSD_CMPXATTR_OP_NE = 2, 423 CEPH_OSD_CMPXATTR_OP_GT = 3, 424 CEPH_OSD_CMPXATTR_OP_GTE = 4, 425 CEPH_OSD_CMPXATTR_OP_LT = 5, 426 CEPH_OSD_CMPXATTR_OP_LTE = 6 427 }; 428 429 enum { 430 CEPH_OSD_CMPXATTR_MODE_STRING = 1, 431 CEPH_OSD_CMPXATTR_MODE_U64 = 2 432 }; 433 434 enum { 435 CEPH_OSD_WATCH_OP_UNWATCH = 0, 436 CEPH_OSD_WATCH_OP_LEGACY_WATCH = 1, 437 /* note: use only ODD ids to prevent pre-giant code from 438 interpreting the op as UNWATCH */ 439 CEPH_OSD_WATCH_OP_WATCH = 3, 440 CEPH_OSD_WATCH_OP_RECONNECT = 5, 441 CEPH_OSD_WATCH_OP_PING = 7, 442 }; 443 444 const char *ceph_osd_watch_op_name(int o); 445 446 enum { 447 CEPH_OSD_BACKOFF_OP_BLOCK = 1, 448 CEPH_OSD_BACKOFF_OP_ACK_BLOCK = 2, 449 CEPH_OSD_BACKOFF_OP_UNBLOCK = 3, 450 }; 451 452 /* 453 * an individual object operation. each may be accompanied by some data 454 * payload 455 */ 456 struct ceph_osd_op { 457 __le16 op; /* CEPH_OSD_OP_* */ 458 __le32 flags; /* CEPH_OSD_OP_FLAG_* */ 459 union { 460 struct { 461 __le64 offset, length; 462 __le64 truncate_size; 463 __le32 truncate_seq; 464 } __attribute__ ((packed)) extent; 465 struct { 466 __le32 name_len; 467 __le32 value_len; 468 __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */ 469 __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */ 470 } __attribute__ ((packed)) xattr; 471 struct { 472 __u8 class_len; 473 __u8 method_len; 474 __u8 argc; 475 __le32 indata_len; 476 } __attribute__ ((packed)) cls; 477 struct { 478 __le64 cookie, count; 479 } __attribute__ ((packed)) pgls; 480 struct { 481 __le64 snapid; 482 } __attribute__ ((packed)) snap; 483 struct { 484 __le64 cookie; 485 __le64 ver; /* no longer used */ 486 __u8 op; /* CEPH_OSD_WATCH_OP_* */ 487 __le32 gen; /* registration generation */ 488 } __attribute__ ((packed)) watch; 489 struct { 490 __le64 cookie; 491 } __attribute__ ((packed)) notify; 492 struct { 493 __le64 offset, length; 494 __le64 src_offset; 495 } __attribute__ ((packed)) clonerange; 496 struct { 497 __le64 expected_object_size; 498 __le64 expected_write_size; 499 } __attribute__ ((packed)) alloc_hint; 500 }; 501 __le32 payload_len; 502 } __attribute__ ((packed)); 503 504 505 #endif 506