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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef CEPH_RADOS_H3#define CEPH_RADOS_H4 5/*6 * Data types for the Ceph distributed object storage layer RADOS7 * (Reliable Autonomic Distributed Object Store).8 */9 10#include <linux/ceph/msgr.h>11 12/*13 * fs id14 */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 PGs41 */42#define CEPH_OBJECT_LAYOUT_HASH 143#define CEPH_OBJECT_LAYOUT_LINEAR 244#define CEPH_OBJECT_LAYOUT_HASHINO 345 46/*47 * pg layout -- how PGs are mapped onto (sets of) OSDs48 */49#define CEPH_PG_LAYOUT_CRUSH 050#define CEPH_PG_LAYOUT_HASH 151#define CEPH_PG_LAYOUT_LINEAR 252#define CEPH_PG_LAYOUT_HYBRID 353 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 objects68 *69 * pg_num -- base number of pseudorandomly placed pgs70 *71 * pgp_num -- effective number when calculating pg placement. this72 * 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 intiially74 * colocated with their parents; that is, pgp_num doesn't increase75 * until the new pgs have successfully split. only _then_ are the new76 * pgs placed independently.77 *78 * lpg_num -- localized pg count (per device). replicas are randomly79 * 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 186#define CEPH_POOL_TYPE_RAID4 2 /* never implemented */87#define CEPH_POOL_TYPE_EC 388 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 b92 * increases over time. b is the number of bins, and bmask is the93 * containing power of 2 minus 1.94 *95 * b <= bmask and bmask=(2**n)-196 * e.g., b=12 -> bmask=15, b=123 -> bmask=12797 */98static inline int ceph_stable_mod(int x, int b, int bmask)99{100 if ((x & bmask) < b)101 return x & bmask;102 else103 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 mutations116 */117struct ceph_eversion {118 __le64 version;119 __le32 epoch;120} __attribute__ ((packed));121 122/*123 * osd map bits124 */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 0x10000136#define CEPH_OSD_OUT 0137 138/* osd primary-affinity. fixed point value: 0x10000 == baseline */139#define CEPH_OSD_MAX_PRIMARY_AFFINITY 0x10000140#define CEPH_OSD_DEFAULT_PRIMARY_AFFINITY 0x10000141 142 143/*144 * osd map flag bits145 */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 write171 * because it is too large.172 */173#define OSD_WRITETOOBIG EMSGSIZE174 175/*176 * osd ops177 *178 * WARNING: do not use these op codes directly. Use the helpers179 * defined below instead. In certain cases, op code behavior was180 * redefined, resulting in special-cases in the helpers.181 */182#define CEPH_OSD_OP_MODE 0xf000183#define CEPH_OSD_OP_MODE_RD 0x1000184#define CEPH_OSD_OP_MODE_WR 0x2000185#define CEPH_OSD_OP_MODE_RMW 0x3000186#define CEPH_OSD_OP_MODE_SUB 0x4000187#define CEPH_OSD_OP_MODE_CACHE 0x8000188 189#define CEPH_OSD_OP_TYPE 0x0f00190#define CEPH_OSD_OP_TYPE_LOCK 0x0100191#define CEPH_OSD_OP_TYPE_DATA 0x0200192#define CEPH_OSD_OP_TYPE_ATTR 0x0300193#define CEPH_OSD_OP_TYPE_EXEC 0x0400194#define CEPH_OSD_OP_TYPE_PG 0x0500195#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_ENTRY326};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.h369 * any modification here needs to be updated there370 */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 flags381 *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 if406 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 in419 the near future */420 CEPH_OSD_OP_FLAG_FADVISE_DONTNEED = 0x20,/* data will not be accessed421 in the near future */422 CEPH_OSD_OP_FLAG_FADVISE_NOCACHE = 0x40,/* data will be accessed only423 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 = 6438};439 440enum {441 CEPH_OSD_CMPXATTR_MODE_STRING = 1,442 CEPH_OSD_CMPXATTR_MODE_U64 = 2443};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 to450 * 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 from459 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 data488 * payload489 */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 flags545 * for src object, flags for dest object are in546 * 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#endif556