rados.h 18.1 KB
Newer Older
1
/* SPDX-License-Identifier: GPL-2.0 */
S
Sage Weil 已提交
2 3
#ifndef CEPH_RADOS_H
#define CEPH_RADOS_H
S
Sage Weil 已提交
4 5 6 7 8 9

/*
 * Data types for the Ceph distributed object storage layer RADOS
 * (Reliable Autonomic Distributed Object Store).
 */

10
#include <linux/ceph/msgr.h>
S
Sage Weil 已提交
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

/*
 * fs id
 */
struct ceph_fsid {
	unsigned char fsid[16];
};

static inline int ceph_fsid_compare(const struct ceph_fsid *a,
				    const struct ceph_fsid *b)
{
	return memcmp(a, b, sizeof(*a));
}

/*
 * ino, object, etc.
 */
typedef __le64 ceph_snapid_t;
#define CEPH_SNAPDIR ((__u64)(-1))  /* reserved for hidden .snap dir */
#define CEPH_NOSNAP  ((__u64)(-2))  /* "head", "live" revision */
#define CEPH_MAXSNAP ((__u64)(-3))  /* largest valid snapid */

struct ceph_timespec {
	__le32 tv_sec;
	__le32 tv_nsec;
} __attribute__ ((packed));


/*
 * object layout - how objects are mapped into PGs
 */
#define CEPH_OBJECT_LAYOUT_HASH     1
#define CEPH_OBJECT_LAYOUT_LINEAR   2
#define CEPH_OBJECT_LAYOUT_HASHINO  3

/*
 * pg layout -- how PGs are mapped onto (sets of) OSDs
 */
#define CEPH_PG_LAYOUT_CRUSH  0
#define CEPH_PG_LAYOUT_HASH   1
#define CEPH_PG_LAYOUT_LINEAR 2
#define CEPH_PG_LAYOUT_HYBRID 3

54
#define CEPH_PG_MAX_SIZE      32  /* max # osds in a single pg */
S
Sage Weil 已提交
55 56 57 58 59

/*
 * placement group.
 * we encode this into one __le64.
 */
60
struct ceph_pg_v1 {
61 62 63
	__le16 preferred; /* preferred primary osd */
	__le16 ps;        /* placement seed */
	__le32 pool;      /* object pool */
S
Sage Weil 已提交
64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82
} __attribute__ ((packed));

/*
 * pg_pool is a set of pgs storing a pool of objects
 *
 *  pg_num -- base number of pseudorandomly placed pgs
 *
 *  pgp_num -- effective number when calculating pg placement.  this
 * is used for pg_num increases.  new pgs result in data being "split"
 * into new pgs.  for this to proceed smoothly, new pgs are intiially
 * colocated with their parents; that is, pgp_num doesn't increase
 * until the new pgs have successfully split.  only _then_ are the new
 * pgs placed independently.
 *
 *  lpg_num -- localized pg count (per device).  replicas are randomly
 * selected.
 *
 *  lpgp_num -- as above.
 */
83 84
#define CEPH_NOPOOL  ((__u64) (-1))  /* pool id not defined */

85 86 87
#define CEPH_POOL_TYPE_REP     1
#define CEPH_POOL_TYPE_RAID4   2 /* never implemented */
#define CEPH_POOL_TYPE_EC      3
S
Sage Weil 已提交
88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109

/*
 * stable_mod func is used to control number of placement groups.
 * similar to straight-up modulo, but produces a stable mapping as b
 * increases over time.  b is the number of bins, and bmask is the
 * containing power of 2 minus 1.
 *
 * b <= bmask and bmask=(2**n)-1
 * e.g., b=12 -> bmask=15, b=123 -> bmask=127
 */
static inline int ceph_stable_mod(int x, int b, int bmask)
{
	if ((x & bmask) < b)
		return x & bmask;
	else
		return x & (bmask >> 1);
}

/*
 * object layout - how a given object should be stored.
 */
struct ceph_object_layout {
110
	struct ceph_pg_v1 ol_pgid;   /* raw pg, with _full_ ps precision. */
S
Sage Weil 已提交
111 112 113 114 115 116 117 118
	__le32 ol_stripe_unit;    /* for per-object parity, if any */
} __attribute__ ((packed));

/*
 * compound epoch+version, used by storage layer to serialize mutations
 */
struct ceph_eversion {
	__le64 version;
119
	__le32 epoch;
S
Sage Weil 已提交
120 121 122 123 124 125 126
} __attribute__ ((packed));

/*
 * osd map bits
 */

/* status bits */
A
Alex Elder 已提交
127 128 129 130
#define CEPH_OSD_EXISTS  (1<<0)
#define CEPH_OSD_UP      (1<<1)
#define CEPH_OSD_AUTOOUT (1<<2)  /* osd was automatically marked out */
#define CEPH_OSD_NEW     (1<<3)  /* osd is new, never marked in */
S
Sage Weil 已提交
131

A
Alex Elder 已提交
132 133
extern const char *ceph_osd_state_name(int s);

S
Sage Weil 已提交
134 135 136 137
/* osd weights.  fixed point value: 0x10000 == 1.0 ("in"), 0 == "out" */
#define CEPH_OSD_IN  0x10000
#define CEPH_OSD_OUT 0

138 139 140 141
/* osd primary-affinity.  fixed point value: 0x10000 == baseline */
#define CEPH_OSD_MAX_PRIMARY_AFFINITY 0x10000
#define CEPH_OSD_DEFAULT_PRIMARY_AFFINITY 0x10000

S
Sage Weil 已提交
142 143 144 145 146 147 148 149 150

/*
 * osd map flag bits
 */
#define CEPH_OSDMAP_NEARFULL (1<<0)  /* sync writes (near ENOSPC) */
#define CEPH_OSDMAP_FULL     (1<<1)  /* no data writes (ENOSPC) */
#define CEPH_OSDMAP_PAUSERD  (1<<2)  /* pause all reads */
#define CEPH_OSDMAP_PAUSEWR  (1<<3)  /* pause all writes */
#define CEPH_OSDMAP_PAUSEREC (1<<4)  /* pause recovery */
A
Alex Elder 已提交
151 152 153 154 155 156
#define CEPH_OSDMAP_NOUP     (1<<5)  /* block osd boot */
#define CEPH_OSDMAP_NODOWN   (1<<6)  /* block osd mark-down/failure */
#define CEPH_OSDMAP_NOOUT    (1<<7)  /* block osd auto mark-out */
#define CEPH_OSDMAP_NOIN     (1<<8)  /* block osd auto mark-in */
#define CEPH_OSDMAP_NOBACKFILL (1<<9) /* block osd backfill */
#define CEPH_OSDMAP_NORECOVER (1<<10) /* block osd recovery and backfill */
157 158 159 160 161
#define CEPH_OSDMAP_NOSCRUB  (1<<11) /* block periodic scrub */
#define CEPH_OSDMAP_NODEEP_SCRUB (1<<12) /* block periodic deep-scrub */
#define CEPH_OSDMAP_NOTIERAGENT (1<<13) /* disable tiering agent */
#define CEPH_OSDMAP_NOREBALANCE (1<<14) /* block osd backfill unless pg is degraded */
#define CEPH_OSDMAP_SORTBITWISE (1<<15) /* use bitwise hobject_t sort */
162 163 164 165
#define CEPH_OSDMAP_REQUIRE_JEWEL    (1<<16) /* require jewel for booting osds */
#define CEPH_OSDMAP_REQUIRE_KRAKEN   (1<<17) /* require kraken for booting osds */
#define CEPH_OSDMAP_REQUIRE_LUMINOUS (1<<18) /* require l for booting osds */
#define CEPH_OSDMAP_RECOVERY_DELETES (1<<19) /* deletes performed during recovery instead of peering */
A
Alex Elder 已提交
166 167 168 169 170 171

/*
 * The error code to return when an OSD can't handle a write
 * because it is too large.
 */
#define OSD_WRITETOOBIG EMSGSIZE
S
Sage Weil 已提交
172 173 174

/*
 * osd ops
A
Alex Elder 已提交
175 176 177 178
 *
 * WARNING: do not use these op codes directly.  Use the helpers
 * defined below instead.  In certain cases, op code behavior was
 * redefined, resulting in special-cases in the helpers.
S
Sage Weil 已提交
179 180 181 182 183 184
 */
#define CEPH_OSD_OP_MODE       0xf000
#define CEPH_OSD_OP_MODE_RD    0x1000
#define CEPH_OSD_OP_MODE_WR    0x2000
#define CEPH_OSD_OP_MODE_RMW   0x3000
#define CEPH_OSD_OP_MODE_SUB   0x4000
185
#define CEPH_OSD_OP_MODE_CACHE 0x8000
S
Sage Weil 已提交
186 187 188 189 190 191 192

#define CEPH_OSD_OP_TYPE       0x0f00
#define CEPH_OSD_OP_TYPE_LOCK  0x0100
#define CEPH_OSD_OP_TYPE_DATA  0x0200
#define CEPH_OSD_OP_TYPE_ATTR  0x0300
#define CEPH_OSD_OP_TYPE_EXEC  0x0400
#define CEPH_OSD_OP_TYPE_PG    0x0500
A
Alex Elder 已提交
193
#define CEPH_OSD_OP_TYPE_MULTI 0x0600 /* multiobject */
S
Sage Weil 已提交
194

195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317
#define __CEPH_OSD_OP1(mode, nr) \
	(CEPH_OSD_OP_MODE_##mode | (nr))

#define __CEPH_OSD_OP(mode, type, nr) \
	(CEPH_OSD_OP_MODE_##mode | CEPH_OSD_OP_TYPE_##type | (nr))

#define __CEPH_FORALL_OSD_OPS(f)					    \
	/** data **/							    \
	/* read */							    \
	f(READ,		__CEPH_OSD_OP(RD, DATA, 1),	"read")		    \
	f(STAT,		__CEPH_OSD_OP(RD, DATA, 2),	"stat")		    \
	f(MAPEXT,	__CEPH_OSD_OP(RD, DATA, 3),	"mapext")	    \
									    \
	/* fancy read */						    \
	f(MASKTRUNC,	__CEPH_OSD_OP(RD, DATA, 4),	"masktrunc")	    \
	f(SPARSE_READ,	__CEPH_OSD_OP(RD, DATA, 5),	"sparse-read")	    \
									    \
	f(NOTIFY,	__CEPH_OSD_OP(RD, DATA, 6),	"notify")	    \
	f(NOTIFY_ACK,	__CEPH_OSD_OP(RD, DATA, 7),	"notify-ack")	    \
									    \
	/* versioning */						    \
	f(ASSERT_VER,	__CEPH_OSD_OP(RD, DATA, 8),	"assert-version")   \
									    \
	f(LIST_WATCHERS, __CEPH_OSD_OP(RD, DATA, 9),	"list-watchers")    \
									    \
	f(LIST_SNAPS,	__CEPH_OSD_OP(RD, DATA, 10),	"list-snaps")	    \
									    \
	/* sync */							    \
	f(SYNC_READ,	__CEPH_OSD_OP(RD, DATA, 11),	"sync_read")	    \
									    \
	/* write */							    \
	f(WRITE,	__CEPH_OSD_OP(WR, DATA, 1),	"write")	    \
	f(WRITEFULL,	__CEPH_OSD_OP(WR, DATA, 2),	"writefull")	    \
	f(TRUNCATE,	__CEPH_OSD_OP(WR, DATA, 3),	"truncate")	    \
	f(ZERO,		__CEPH_OSD_OP(WR, DATA, 4),	"zero")		    \
	f(DELETE,	__CEPH_OSD_OP(WR, DATA, 5),	"delete")	    \
									    \
	/* fancy write */						    \
	f(APPEND,	__CEPH_OSD_OP(WR, DATA, 6),	"append")	    \
	f(SETTRUNC,	__CEPH_OSD_OP(WR, DATA, 8),	"settrunc")	    \
	f(TRIMTRUNC,	__CEPH_OSD_OP(WR, DATA, 9),	"trimtrunc")	    \
									    \
	f(TMAPUP,	__CEPH_OSD_OP(RMW, DATA, 10),	"tmapup")	    \
	f(TMAPPUT,	__CEPH_OSD_OP(WR, DATA, 11),	"tmapput")	    \
	f(TMAPGET,	__CEPH_OSD_OP(RD, DATA, 12),	"tmapget")	    \
									    \
	f(CREATE,	__CEPH_OSD_OP(WR, DATA, 13),	"create")	    \
	f(ROLLBACK,	__CEPH_OSD_OP(WR, DATA, 14),	"rollback")	    \
									    \
	f(WATCH,	__CEPH_OSD_OP(WR, DATA, 15),	"watch")	    \
									    \
	/* omap */							    \
	f(OMAPGETKEYS,	__CEPH_OSD_OP(RD, DATA, 17),	"omap-get-keys")    \
	f(OMAPGETVALS,	__CEPH_OSD_OP(RD, DATA, 18),	"omap-get-vals")    \
	f(OMAPGETHEADER, __CEPH_OSD_OP(RD, DATA, 19),	"omap-get-header")  \
	f(OMAPGETVALSBYKEYS, __CEPH_OSD_OP(RD, DATA, 20), "omap-get-vals-by-keys") \
	f(OMAPSETVALS,	__CEPH_OSD_OP(WR, DATA, 21),	"omap-set-vals")    \
	f(OMAPSETHEADER, __CEPH_OSD_OP(WR, DATA, 22),	"omap-set-header")  \
	f(OMAPCLEAR,	__CEPH_OSD_OP(WR, DATA, 23),	"omap-clear")	    \
	f(OMAPRMKEYS,	__CEPH_OSD_OP(WR, DATA, 24),	"omap-rm-keys")	    \
	f(OMAP_CMP,	__CEPH_OSD_OP(RD, DATA, 25),	"omap-cmp")	    \
									    \
	/* tiering */							    \
	f(COPY_FROM,	__CEPH_OSD_OP(WR, DATA, 26),	"copy-from")	    \
	f(COPY_GET_CLASSIC, __CEPH_OSD_OP(RD, DATA, 27), "copy-get-classic") \
	f(UNDIRTY,	__CEPH_OSD_OP(WR, DATA, 28),	"undirty")	    \
	f(ISDIRTY,	__CEPH_OSD_OP(RD, DATA, 29),	"isdirty")	    \
	f(COPY_GET,	__CEPH_OSD_OP(RD, DATA, 30),	"copy-get")	    \
	f(CACHE_FLUSH,	__CEPH_OSD_OP(CACHE, DATA, 31),	"cache-flush")	    \
	f(CACHE_EVICT,	__CEPH_OSD_OP(CACHE, DATA, 32),	"cache-evict")	    \
	f(CACHE_TRY_FLUSH, __CEPH_OSD_OP(CACHE, DATA, 33), "cache-try-flush") \
									    \
	/* convert tmap to omap */					    \
	f(TMAP2OMAP,	__CEPH_OSD_OP(RMW, DATA, 34),	"tmap2omap")	    \
									    \
	/* hints */							    \
	f(SETALLOCHINT,	__CEPH_OSD_OP(WR, DATA, 35),	"set-alloc-hint")   \
									    \
	/** multi **/							    \
	f(CLONERANGE,	__CEPH_OSD_OP(WR, MULTI, 1),	"clonerange")	    \
	f(ASSERT_SRC_VERSION, __CEPH_OSD_OP(RD, MULTI, 2), "assert-src-version") \
	f(SRC_CMPXATTR,	__CEPH_OSD_OP(RD, MULTI, 3),	"src-cmpxattr")	    \
									    \
	/** attrs **/							    \
	/* read */							    \
	f(GETXATTR,	__CEPH_OSD_OP(RD, ATTR, 1),	"getxattr")	    \
	f(GETXATTRS,	__CEPH_OSD_OP(RD, ATTR, 2),	"getxattrs")	    \
	f(CMPXATTR,	__CEPH_OSD_OP(RD, ATTR, 3),	"cmpxattr")	    \
									    \
	/* write */							    \
	f(SETXATTR,	__CEPH_OSD_OP(WR, ATTR, 1),	"setxattr")	    \
	f(SETXATTRS,	__CEPH_OSD_OP(WR, ATTR, 2),	"setxattrs")	    \
	f(RESETXATTRS,	__CEPH_OSD_OP(WR, ATTR, 3),	"resetxattrs")	    \
	f(RMXATTR,	__CEPH_OSD_OP(WR, ATTR, 4),	"rmxattr")	    \
									    \
	/** subop **/							    \
	f(PULL,		__CEPH_OSD_OP1(SUB, 1),		"pull")		    \
	f(PUSH,		__CEPH_OSD_OP1(SUB, 2),		"push")		    \
	f(BALANCEREADS,	__CEPH_OSD_OP1(SUB, 3),		"balance-reads")    \
	f(UNBALANCEREADS, __CEPH_OSD_OP1(SUB, 4),	"unbalance-reads")  \
	f(SCRUB,	__CEPH_OSD_OP1(SUB, 5),		"scrub")	    \
	f(SCRUB_RESERVE, __CEPH_OSD_OP1(SUB, 6),	"scrub-reserve")    \
	f(SCRUB_UNRESERVE, __CEPH_OSD_OP1(SUB, 7),	"scrub-unreserve")  \
	f(SCRUB_STOP,	__CEPH_OSD_OP1(SUB, 8),		"scrub-stop")	    \
	f(SCRUB_MAP,	__CEPH_OSD_OP1(SUB, 9),		"scrub-map")	    \
									    \
	/** lock **/							    \
	f(WRLOCK,	__CEPH_OSD_OP(WR, LOCK, 1),	"wrlock")	    \
	f(WRUNLOCK,	__CEPH_OSD_OP(WR, LOCK, 2),	"wrunlock")	    \
	f(RDLOCK,	__CEPH_OSD_OP(WR, LOCK, 3),	"rdlock")	    \
	f(RDUNLOCK,	__CEPH_OSD_OP(WR, LOCK, 4),	"rdunlock")	    \
	f(UPLOCK,	__CEPH_OSD_OP(WR, LOCK, 5),	"uplock")	    \
	f(DNLOCK,	__CEPH_OSD_OP(WR, LOCK, 6),	"dnlock")	    \
									    \
	/** exec **/							    \
	/* note: the RD bit here is wrong; see special-case below in helper */ \
	f(CALL,		__CEPH_OSD_OP(RD, EXEC, 1),	"call")		    \
									    \
	/** pg **/							    \
	f(PGLS,		__CEPH_OSD_OP(RD, PG, 1),	"pgls")		    \
	f(PGLS_FILTER,	__CEPH_OSD_OP(RD, PG, 2),	"pgls-filter")	    \
	f(PG_HITSET_LS,	__CEPH_OSD_OP(RD, PG, 3),	"pg-hitset-ls")	    \
	f(PG_HITSET_GET, __CEPH_OSD_OP(RD, PG, 4),	"pg-hitset-get")
Y
Yehuda Sadeh 已提交
318

319 320 321 322
enum {
#define GENERATE_ENUM_ENTRY(op, opcode, str)	CEPH_OSD_OP_##op = (opcode),
__CEPH_FORALL_OSD_OPS(GENERATE_ENUM_ENTRY)
#undef GENERATE_ENUM_ENTRY
S
Sage Weil 已提交
323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344
};

static inline int ceph_osd_op_type_lock(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_LOCK;
}
static inline int ceph_osd_op_type_data(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_DATA;
}
static inline int ceph_osd_op_type_attr(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_ATTR;
}
static inline int ceph_osd_op_type_exec(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_EXEC;
}
static inline int ceph_osd_op_type_pg(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG;
}
A
Alex Elder 已提交
345 346 347 348
static inline int ceph_osd_op_type_multi(int op)
{
	return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_MULTI;
}
S
Sage Weil 已提交
349 350 351 352 353 354 355

static inline int ceph_osd_op_mode_subop(int op)
{
	return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_SUB;
}
static inline int ceph_osd_op_mode_read(int op)
{
A
Alex Elder 已提交
356 357
	return (op & CEPH_OSD_OP_MODE_RD) &&
		op != CEPH_OSD_OP_CALL;
S
Sage Weil 已提交
358 359 360
}
static inline int ceph_osd_op_mode_modify(int op)
{
A
Alex Elder 已提交
361
	return op & CEPH_OSD_OP_MODE_WR;
S
Sage Weil 已提交
362 363
}

364 365 366 367
/*
 * note that the following tmap stuff is also defined in the ceph librados.h
 * any modification here needs to be updated there
 */
S
Sage Weil 已提交
368 369
#define CEPH_OSD_TMAP_HDR 'h'
#define CEPH_OSD_TMAP_SET 's'
A
Alex Elder 已提交
370
#define CEPH_OSD_TMAP_CREATE 'c' /* create key */
S
Sage Weil 已提交
371
#define CEPH_OSD_TMAP_RM  'r'
A
Alex Elder 已提交
372
#define CEPH_OSD_TMAP_RMSLOPPY 'R'
S
Sage Weil 已提交
373 374 375 376 377 378 379 380 381

extern const char *ceph_osd_op_name(int op);

/*
 * osd op flags
 *
 * An op may be READ, WRITE, or READ|WRITE.
 */
enum {
A
Alex Elder 已提交
382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
	CEPH_OSD_FLAG_ACK =            0x0001,  /* want (or is) "ack" ack */
	CEPH_OSD_FLAG_ONNVRAM =        0x0002,  /* want (or is) "onnvram" ack */
	CEPH_OSD_FLAG_ONDISK =         0x0004,  /* want (or is) "ondisk" ack */
	CEPH_OSD_FLAG_RETRY =          0x0008,  /* resend attempt */
	CEPH_OSD_FLAG_READ =           0x0010,  /* op may read */
	CEPH_OSD_FLAG_WRITE =          0x0020,  /* op may write */
	CEPH_OSD_FLAG_ORDERSNAP =      0x0040,  /* EOLDSNAP if snapc is out of order */
	CEPH_OSD_FLAG_PEERSTAT_OLD =   0x0080,  /* DEPRECATED msg includes osd_peer_stat */
	CEPH_OSD_FLAG_BALANCE_READS =  0x0100,
	CEPH_OSD_FLAG_PARALLELEXEC =   0x0200,  /* execute op in parallel */
	CEPH_OSD_FLAG_PGOP =           0x0400,  /* pg op, no object */
	CEPH_OSD_FLAG_EXEC =           0x0800,  /* op may exec */
	CEPH_OSD_FLAG_EXEC_PUBLIC =    0x1000,  /* DEPRECATED op may exec (public) */
	CEPH_OSD_FLAG_LOCALIZE_READS = 0x2000,  /* read from nearby replica, if any */
	CEPH_OSD_FLAG_RWORDERED =      0x4000,  /* order wrt concurrent reads */
397 398 399 400
	CEPH_OSD_FLAG_IGNORE_CACHE =   0x8000,  /* ignore cache logic */
	CEPH_OSD_FLAG_SKIPRWLOCKS =   0x10000,  /* skip rw locks */
	CEPH_OSD_FLAG_IGNORE_OVERLAY = 0x20000, /* ignore pool overlay */
	CEPH_OSD_FLAG_FLUSH =         0x40000,  /* this is part of flush */
401 402 403 404 405 406 407
	CEPH_OSD_FLAG_MAP_SNAP_CLONE = 0x80000,  /* map snap direct to clone id */
	CEPH_OSD_FLAG_ENFORCE_SNAPC   = 0x100000,  /* use snapc provided even if
						      pool uses pool snaps */
	CEPH_OSD_FLAG_REDIRECTED   = 0x200000,  /* op has been redirected */
	CEPH_OSD_FLAG_KNOWN_REDIR = 0x400000,  /* redirect bit is authoritative */
	CEPH_OSD_FLAG_FULL_TRY =    0x800000,  /* try op despite full flag */
	CEPH_OSD_FLAG_FULL_FORCE = 0x1000000,  /* force op despite full flag */
S
Sage Weil 已提交
408 409 410 411
};

enum {
	CEPH_OSD_OP_FLAG_EXCL = 1,      /* EXCL object create */
A
Alex Elder 已提交
412
	CEPH_OSD_OP_FLAG_FAILOK = 2,    /* continue despite failure */
413 414 415 416 417 418 419 420
	CEPH_OSD_OP_FLAG_FADVISE_RANDOM	    = 0x4, /* the op is random */
	CEPH_OSD_OP_FLAG_FADVISE_SEQUENTIAL = 0x8, /* the op is sequential */
	CEPH_OSD_OP_FLAG_FADVISE_WILLNEED   = 0x10,/* data will be accessed in
						      the near future */
	CEPH_OSD_OP_FLAG_FADVISE_DONTNEED   = 0x20,/* data will not be accessed
						      in the near future */
	CEPH_OSD_OP_FLAG_FADVISE_NOCACHE    = 0x40,/* data will be accessed only
						      once by this client */
S
Sage Weil 已提交
421 422 423 424 425
};

#define EOLDSNAPC    ERESTART  /* ORDERSNAP flag set; writer has old snapc*/
#define EBLACKLISTED ESHUTDOWN /* blacklisted */

S
Sage Weil 已提交
426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441
/* xattr comparison */
enum {
	CEPH_OSD_CMPXATTR_OP_NOP = 0,
	CEPH_OSD_CMPXATTR_OP_EQ  = 1,
	CEPH_OSD_CMPXATTR_OP_NE  = 2,
	CEPH_OSD_CMPXATTR_OP_GT  = 3,
	CEPH_OSD_CMPXATTR_OP_GTE = 4,
	CEPH_OSD_CMPXATTR_OP_LT  = 5,
	CEPH_OSD_CMPXATTR_OP_LTE = 6
};

enum {
	CEPH_OSD_CMPXATTR_MODE_STRING = 1,
	CEPH_OSD_CMPXATTR_MODE_U64    = 2
};

442 443 444 445 446 447 448 449 450
enum {
	CEPH_OSD_COPY_FROM_FLAG_FLUSH = 1,       /* part of a flush operation */
	CEPH_OSD_COPY_FROM_FLAG_IGNORE_OVERLAY = 2, /* ignore pool overlay */
	CEPH_OSD_COPY_FROM_FLAG_IGNORE_CACHE = 4,   /* ignore osd cache logic */
	CEPH_OSD_COPY_FROM_FLAG_MAP_SNAP_CLONE = 8, /* map snap direct to
						     * cloneid */
	CEPH_OSD_COPY_FROM_FLAG_RWORDERED = 16,     /* order with write */
};

451 452 453 454 455 456 457 458 459 460 461
enum {
	CEPH_OSD_WATCH_OP_UNWATCH = 0,
	CEPH_OSD_WATCH_OP_LEGACY_WATCH = 1,
	/* note: use only ODD ids to prevent pre-giant code from
	   interpreting the op as UNWATCH */
	CEPH_OSD_WATCH_OP_WATCH = 3,
	CEPH_OSD_WATCH_OP_RECONNECT = 5,
	CEPH_OSD_WATCH_OP_PING = 7,
};

const char *ceph_osd_watch_op_name(int o);
Y
Yehuda Sadeh 已提交
462

463 464 465 466 467 468
enum {
	CEPH_OSD_BACKOFF_OP_BLOCK = 1,
	CEPH_OSD_BACKOFF_OP_ACK_BLOCK = 2,
	CEPH_OSD_BACKOFF_OP_UNBLOCK = 3,
};

S
Sage Weil 已提交
469 470 471 472 473 474
/*
 * an individual object operation.  each may be accompanied by some data
 * payload
 */
struct ceph_osd_op {
	__le16 op;           /* CEPH_OSD_OP_* */
475
	__le32 flags;        /* CEPH_OSD_OP_FLAG_* */
S
Sage Weil 已提交
476 477 478
	union {
		struct {
			__le64 offset, length;
479 480
			__le64 truncate_size;
			__le32 truncate_seq;
S
Sage Weil 已提交
481 482 483 484
		} __attribute__ ((packed)) extent;
		struct {
			__le32 name_len;
			__le32 value_len;
S
Sage Weil 已提交
485 486
			__u8 cmp_op;       /* CEPH_OSD_CMPXATTR_OP_* */
			__u8 cmp_mode;     /* CEPH_OSD_CMPXATTR_MODE_* */
S
Sage Weil 已提交
487 488 489 490 491 492 493 494 495 496
		} __attribute__ ((packed)) xattr;
		struct {
			__u8 class_len;
			__u8 method_len;
			__u8 argc;
			__le32 indata_len;
		} __attribute__ ((packed)) cls;
		struct {
			__le64 cookie, count;
		} __attribute__ ((packed)) pgls;
497 498 499
	        struct {
		        __le64 snapid;
	        } __attribute__ ((packed)) snap;
Y
Yehuda Sadeh 已提交
500 501
		struct {
			__le64 cookie;
502 503 504
			__le64 ver;     /* no longer used */
			__u8 op;	/* CEPH_OSD_WATCH_OP_* */
			__le32 gen;     /* registration generation */
Y
Yehuda Sadeh 已提交
505
		} __attribute__ ((packed)) watch;
506 507 508
		struct {
			__le64 cookie;
		} __attribute__ ((packed)) notify;
A
Alex Elder 已提交
509 510 511 512
		struct {
			__le64 offset, length;
			__le64 src_offset;
		} __attribute__ ((packed)) clonerange;
513 514 515 516
		struct {
			__le64 expected_object_size;
			__le64 expected_write_size;
		} __attribute__ ((packed)) alloc_hint;
517 518 519 520 521 522 523 524 525 526 527
		struct {
			__le64 snapid;
			__le64 src_version;
			__u8 flags; /* CEPH_OSD_COPY_FROM_FLAG_* */
			/*
			 * CEPH_OSD_OP_FLAG_FADVISE_*: fadvise flags
			 * for src object, flags for dest object are in
			 * ceph_osd_op::flags.
			 */
			__le32 src_fadvise_flags;
		} __attribute__ ((packed)) copy_from;
A
Alex Elder 已提交
528
	};
S
Sage Weil 已提交
529 530 531 532 533
	__le32 payload_len;
} __attribute__ ((packed));


#endif