libceph: new features macros

#define __CEPH_FEATURES

/*

 * feature bits

 * Each time we reclaim bits for reuse we need to specify another bit

 * that, if present, indicates we have the new incarnation of that

 * feature.  Base case is 1 (first use).

 */

#define CEPH_FEATURE_UID            (1ULL<<0)

#define CEPH_FEATURE_NOSRCADDR      (1ULL<<1)

#define CEPH_FEATURE_MONCLOCKCHECK  (1ULL<<2)

#define CEPH_FEATURE_FLOCK          (1ULL<<3)

#define CEPH_FEATURE_SUBSCRIBE2     (1ULL<<4)

#define CEPH_FEATURE_MONNAMES       (1ULL<<5)

#define CEPH_FEATURE_RECONNECT_SEQ  (1ULL<<6)

#define CEPH_FEATURE_DIRLAYOUTHASH  (1ULL<<7)

#define CEPH_FEATURE_OBJECTLOCATOR  (1ULL<<8)

#define CEPH_FEATURE_PGID64         (1ULL<<9)

#define CEPH_FEATURE_INCSUBOSDMAP   (1ULL<<10)

#define CEPH_FEATURE_PGPOOL3        (1ULL<<11)

#define CEPH_FEATURE_OSDREPLYMUX    (1ULL<<12)

#define CEPH_FEATURE_OSDENC         (1ULL<<13)

#define CEPH_FEATURE_OMAP           (1ULL<<14)

#define CEPH_FEATURE_MONENC         (1ULL<<15)

#define CEPH_FEATURE_QUERY_T        (1ULL<<16)

#define CEPH_FEATURE_INDEP_PG_MAP   (1ULL<<17)

#define CEPH_FEATURE_CRUSH_TUNABLES (1ULL<<18)

#define CEPH_FEATURE_CHUNKY_SCRUB   (1ULL<<19)

#define CEPH_FEATURE_MON_NULLROUTE  (1ULL<<20)

#define CEPH_FEATURE_MON_GV         (1ULL<<21)

#define CEPH_FEATURE_BACKFILL_RESERVATION (1ULL<<22)

#define CEPH_FEATURE_MSG_AUTH	    (1ULL<<23)

#define CEPH_FEATURE_RECOVERY_RESERVATION (1ULL<<24)

#define CEPH_FEATURE_CRUSH_TUNABLES2 (1ULL<<25)

#define CEPH_FEATURE_CREATEPOOLID   (1ULL<<26)

#define CEPH_FEATURE_REPLY_CREATE_INODE   (1ULL<<27)

#define CEPH_FEATURE_OSD_HBMSGS     (1ULL<<28)

#define CEPH_FEATURE_MDSENC         (1ULL<<29)

#define CEPH_FEATURE_OSDHASHPSPOOL  (1ULL<<30)

#define CEPH_FEATURE_MON_SINGLE_PAXOS (1ULL<<31)

#define CEPH_FEATURE_OSD_SNAPMAPPER (1ULL<<32)

#define CEPH_FEATURE_MON_SCRUB      (1ULL<<33)

#define CEPH_FEATURE_OSD_PACKED_RECOVERY (1ULL<<34)

#define CEPH_FEATURE_OSD_CACHEPOOL (1ULL<<35)

#define CEPH_FEATURE_CRUSH_V2      (1ULL<<36)  /* new indep; SET_* steps */

#define CEPH_FEATURE_EXPORT_PEER   (1ULL<<37)

#define CEPH_FEATURE_OSD_ERASURE_CODES (1ULL<<38)

#define CEPH_FEATURE_OSD_TMAP2OMAP (1ULL<<38)   /* overlap with EC */

/* The process supports new-style OSDMap encoding. Monitors also use

   this bit to determine if peers support NAK messages. */

#define CEPH_FEATURE_OSDMAP_ENC    (1ULL<<39)

#define CEPH_FEATURE_MDS_INLINE_DATA     (1ULL<<40)

#define CEPH_FEATURE_CRUSH_TUNABLES3     (1ULL<<41)

#define CEPH_FEATURE_OSD_PRIMARY_AFFINITY (1ULL<<41)  /* overlap w/ tunables3 */

#define CEPH_FEATURE_MSGR_KEEPALIVE2   (1ULL<<42)

#define CEPH_FEATURE_OSD_POOLRESEND    (1ULL<<43)

#define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 (1ULL<<44)

#define CEPH_FEATURE_OSD_SET_ALLOC_HINT (1ULL<<45)

#define CEPH_FEATURE_OSD_FADVISE_FLAGS (1ULL<<46)

#define CEPH_FEATURE_OSD_REPOP         (1ULL<<46)   /* overlap with fadvise */

#define CEPH_FEATURE_OSD_OBJECT_DIGEST  (1ULL<<46)  /* overlap with fadvise */

#define CEPH_FEATURE_OSD_TRANSACTION_MAY_LAYOUT (1ULL<<46) /* overlap w/ fadvise */

#define CEPH_FEATURE_MDS_QUOTA      (1ULL<<47)

#define CEPH_FEATURE_CRUSH_V4      (1ULL<<48)  /* straw2 buckets */

#define CEPH_FEATURE_OSD_MIN_SIZE_RECOVERY (1ULL<<49)

// duplicated since it was introduced at the same time as MIN_SIZE_RECOVERY

#define CEPH_FEATURE_OSD_PROXY_FEATURES (1ULL<<49)  /* overlap w/ above */

#define CEPH_FEATURE_MON_METADATA (1ULL<<50)

#define CEPH_FEATURE_OSD_BITWISE_HOBJ_SORT (1ULL<<51) /* can sort objs bitwise */

#define CEPH_FEATURE_OSD_PROXY_WRITE_FEATURES (1ULL<<52)

#define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3 (1ULL<<53)

#define CEPH_FEATURE_OSD_HITSET_GMT (1ULL<<54)

#define CEPH_FEATURE_HAMMER_0_94_4 (1ULL<<55)

#define CEPH_FEATURE_NEW_OSDOP_ENCODING   (1ULL<<56) /* New, v7 encoding */

#define CEPH_FEATURE_MON_STATEFUL_SUB (1ULL<<57) /* stateful mon subscription */

#define CEPH_FEATURE_MON_ROUTE_OSDMAP (1ULL<<57) /* peon sends osdmaps */

#define CEPH_FEATURE_CRUSH_TUNABLES5	(1ULL<<58) /* chooseleaf stable mode */

// duplicated since it was introduced at the same time as CEPH_FEATURE_CRUSH_TUNABLES5

#define CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING   (1ULL<<58) /* New, v7 encoding */

#define CEPH_FEATURE_FS_FILE_LAYOUT_V2       (1ULL<<58) /* file_layout_t */

#define CEPH_FEATURE_RESERVED (1ULL<<63)

#define CEPH_FEATURE_INCARNATION_1 (0ull)

#define CEPH_FEATURE_INCARNATION_2 (1ull<<57) // CEPH_FEATURE_SERVER_JEWEL

#define DEFINE_CEPH_FEATURE(bit, incarnation, name)			\

	const static uint64_t CEPH_FEATURE_##name = (1ULL<<bit);		\

	const static uint64_t CEPH_FEATUREMASK_##name =			\

		(1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);

/* this bit is ignored but still advertised by release *when* */

#define DEFINE_CEPH_FEATURE_DEPRECATED(bit, incarnation, name, when) \

	const static uint64_t DEPRECATED_CEPH_FEATURE_##name = (1ULL<<bit); \

	const static uint64_t DEPRECATED_CEPH_FEATUREMASK_##name =		\

		(1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);

/*

 * this bit is ignored by release *unused* and not advertised by

 * release *unadvertised*

 */

#define DEFINE_CEPH_FEATURE_RETIRED(bit, inc, name, unused, unadvertised)

/*

 * test for a feature.  this test is safer than a typical mask against

 * the bit because it ensures that we have the bit AND the marker for the

 * bit's incarnation.  this must be used in any case where the features

 * bits may include an old meaning of the bit.

 */

#define CEPH_HAVE_FEATURE(x, name)			\

	(((x) & (CEPH_FEATUREMASK_##name)) == (CEPH_FEATUREMASK_##name))

/*

 * Notes on deprecation:

 *

 * A *major* release is a release through which all upgrades must pass

 * (e.g., jewel).  For example, no pre-jewel server will ever talk to

 * a post-jewel server (mon, osd, etc).

 *

 * For feature bits used *only* on the server-side:

 *

 *  - In the first phase we indicate that a feature is DEPRECATED as of

 *    a particular release.  This is the first major release X (say,

 *    jewel) that does not depend on its peers advertising the feature.

 *    That is, it safely assumes its peers all have the feature.  We

 *    indicate this with the DEPRECATED macro.  For example,

 *

 *      DEFINE_CEPH_FEATURE_DEPRECATED( 2, 1, MONCLOCKCHECK, JEWEL)

 *

 *    because 10.2.z (jewel) did not care if its peers advertised this

 *    feature bit.

 *

 *  - In the second phase we stop advertising the the bit and call it

 *    RETIRED.  This can normally be done in the *next* major release

 *    following the one in which we marked the feature DEPRECATED.  In

 *    the above example, for 12.0.z (luminous) we can say:

 *

 *      DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)

 *

 *  - The bit can be reused in the first post-luminous release, 13.0.z

 *    (m).

 *

 * This ensures that no two versions who have different meanings for

 * the bit ever speak to each other.

 */

DEFINE_CEPH_FEATURE( 0, 1, UID)

DEFINE_CEPH_FEATURE( 1, 1, NOSRCADDR)

DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE( 3, 1, FLOCK)

DEFINE_CEPH_FEATURE( 4, 1, SUBSCRIBE2)

DEFINE_CEPH_FEATURE( 5, 1, MONNAMES)

DEFINE_CEPH_FEATURE( 6, 1, RECONNECT_SEQ)

DEFINE_CEPH_FEATURE( 7, 1, DIRLAYOUTHASH)

DEFINE_CEPH_FEATURE( 8, 1, OBJECTLOCATOR)

DEFINE_CEPH_FEATURE( 9, 1, PGID64)

DEFINE_CEPH_FEATURE(10, 1, INCSUBOSDMAP)

DEFINE_CEPH_FEATURE(11, 1, PGPOOL3)

DEFINE_CEPH_FEATURE(12, 1, OSDREPLYMUX)

DEFINE_CEPH_FEATURE(13, 1, OSDENC)

DEFINE_CEPH_FEATURE_RETIRED(14, 1, OMAP, HAMMER, JEWEL)

DEFINE_CEPH_FEATURE(14, 2, SERVER_KRAKEN)

DEFINE_CEPH_FEATURE(15, 1, MONENC)

DEFINE_CEPH_FEATURE_RETIRED(16, 1, QUERY_T, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(17, 1, INDEP_PG_MAP, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE(18, 1, CRUSH_TUNABLES)

DEFINE_CEPH_FEATURE_RETIRED(19, 1, CHUNKY_SCRUB, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(20, 1, MON_NULLROUTE, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(21, 1, MON_GV, HAMMER, JEWEL)

DEFINE_CEPH_FEATURE(21, 2, SERVER_LUMINOUS)

DEFINE_CEPH_FEATURE(21, 2, RESEND_ON_SPLIT)  // overlap

DEFINE_CEPH_FEATURE(21, 2, RADOS_BACKOFF)    // overlap

DEFINE_CEPH_FEATURE(21, 2, OSDMAP_PG_UPMAP)  // overlap

DEFINE_CEPH_FEATURE(21, 2, CRUSH_CHOOSE_ARGS) // overlap

DEFINE_CEPH_FEATURE_RETIRED(22, 1, BACKFILL_RESERVATION, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE(23, 1, MSG_AUTH)

DEFINE_CEPH_FEATURE_RETIRED(24, 1, RECOVERY_RESERVATION, JEWEL, LUNINOUS)

DEFINE_CEPH_FEATURE(25, 1, CRUSH_TUNABLES2)

DEFINE_CEPH_FEATURE(26, 1, CREATEPOOLID)

DEFINE_CEPH_FEATURE(27, 1, REPLY_CREATE_INODE)

DEFINE_CEPH_FEATURE_RETIRED(28, 1, OSD_HBMSGS, HAMMER, JEWEL)

DEFINE_CEPH_FEATURE(28, 2, SERVER_M)

DEFINE_CEPH_FEATURE(29, 1, MDSENC)

DEFINE_CEPH_FEATURE(30, 1, OSDHASHPSPOOL)

DEFINE_CEPH_FEATURE(31, 1, MON_SINGLE_PAXOS)  // deprecate me

DEFINE_CEPH_FEATURE_RETIRED(32, 1, OSD_SNAPMAPPER, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(33, 1, MON_SCRUB, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(34, 1, OSD_PACKED_RECOVERY, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE(35, 1, OSD_CACHEPOOL)

DEFINE_CEPH_FEATURE(36, 1, CRUSH_V2)

DEFINE_CEPH_FEATURE(37, 1, EXPORT_PEER)

DEFINE_CEPH_FEATURE(38, 1, OSD_ERASURE_CODES)

DEFINE_CEPH_FEATURE(38, 1, OSD_OSD_TMAP2OMAP) // overlap

DEFINE_CEPH_FEATURE(39, 1, OSDMAP_ENC)

DEFINE_CEPH_FEATURE(40, 1, MDS_INLINE_DATA)

DEFINE_CEPH_FEATURE(41, 1, CRUSH_TUNABLES3)

DEFINE_CEPH_FEATURE(41, 1, OSD_PRIMARY_AFFINITY) // overlap

DEFINE_CEPH_FEATURE(42, 1, MSGR_KEEPALIVE2)

DEFINE_CEPH_FEATURE(43, 1, OSD_POOLRESEND)

DEFINE_CEPH_FEATURE(44, 1, ERASURE_CODE_PLUGINS_V2)

DEFINE_CEPH_FEATURE_RETIRED(45, 1, OSD_SET_ALLOC_HINT, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE(46, 1, OSD_FADVISE_FLAGS)

DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_REPOP, JEWEL, LUMINOUS) // overlap

DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_OBJECT_DIGEST, JEWEL, LUMINOUS) // overlap

DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_TRANSACTION_MAY_LAYOUT, JEWEL, LUMINOUS) // overlap

DEFINE_CEPH_FEATURE(47, 1, MDS_QUOTA)

DEFINE_CEPH_FEATURE(48, 1, CRUSH_V4)

DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_MIN_SIZE_RECOVERY, JEWEL, LUMINOUS)

DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_PROXY_FEATURES, JEWEL, LUMINOUS) // overlap

DEFINE_CEPH_FEATURE(50, 1, MON_METADATA)

DEFINE_CEPH_FEATURE(51, 1, OSD_BITWISE_HOBJ_SORT)

DEFINE_CEPH_FEATURE(52, 1, OSD_PROXY_WRITE_FEATURES)

DEFINE_CEPH_FEATURE(53, 1, ERASURE_CODE_PLUGINS_V3)

DEFINE_CEPH_FEATURE(54, 1, OSD_HITSET_GMT)

DEFINE_CEPH_FEATURE(55, 1, HAMMER_0_94_4)

DEFINE_CEPH_FEATURE(56, 1, NEW_OSDOP_ENCODING)

DEFINE_CEPH_FEATURE(57, 1, MON_STATEFUL_SUB)

DEFINE_CEPH_FEATURE(57, 1, MON_ROUTE_OSDMAP) // overlap

DEFINE_CEPH_FEATURE(57, 1, OSDSUBOP_NO_SNAPCONTEXT) // overlap

DEFINE_CEPH_FEATURE(57, 1, SERVER_JEWEL) // overlap

DEFINE_CEPH_FEATURE(58, 1, CRUSH_TUNABLES5)

DEFINE_CEPH_FEATURE(58, 1, NEW_OSDOPREPLY_ENCODING) // overlap

DEFINE_CEPH_FEATURE(58, 1, FS_FILE_LAYOUT_V2) // overlap

DEFINE_CEPH_FEATURE(59, 1, FS_BTIME)

DEFINE_CEPH_FEATURE(59, 1, FS_CHANGE_ATTR) // overlap

DEFINE_CEPH_FEATURE(59, 1, MSG_ADDR2) // overlap

DEFINE_CEPH_FEATURE(60, 1, BLKIN_TRACING)  // *do not share this bit*

DEFINE_CEPH_FEATURE(61, 1, RESERVED2)          // unused, but slow down!

DEFINE_CEPH_FEATURE(62, 1, RESERVED)           // do not use; used as a sentinal

DEFINE_CEPH_FEATURE_DEPRECATED(63, 1, RESERVED_BROKEN, LUMINOUS) // client-facing

/*

 * Features supported.