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 */ 15struct ceph_fsid { 16 unsigned char fsid[16]; 17}; 18 19static 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 */ 28typedef __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 33struct 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 */ 60struct 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 */ 98static 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 */ 109struct 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 */ 117struct 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 132extern 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 322enum { 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 328static inline int ceph_osd_op_type_lock(int op) 329{ 330 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_LOCK; 331} 332static inline int ceph_osd_op_type_data(int op) 333{ 334 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_DATA; 335} 336static inline int ceph_osd_op_type_attr(int op) 337{ 338 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_ATTR; 339} 340static inline int ceph_osd_op_type_exec(int op) 341{ 342 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_EXEC; 343} 344static inline int ceph_osd_op_type_pg(int op) 345{ 346 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG; 347} 348static inline int ceph_osd_op_type_multi(int op) 349{ 350 return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_MULTI; 351} 352 353static inline int ceph_osd_op_mode_subop(int op) 354{ 355 return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_SUB; 356} 357static 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} 362static 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 377extern 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 */ 384enum { 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 413enum { 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 */ 430enum { 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 440enum { 441 CEPH_OSD_CMPXATTR_MODE_STRING = 1, 442 CEPH_OSD_CMPXATTR_MODE_U64 = 2 443}; 444 445enum { 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 455enum { 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 465const char *ceph_osd_watch_op_name(int o); 466 467enum { 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 480enum { 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 */ 490struct 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