--- /dev/null
+#ifndef __CEPH_FEATURES
+#define __CEPH_FEATURES
+
+#include "sys/types.h"
+
+/*
+ * 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_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 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, OSD_RECOVERY_DELETES) // *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. Should be everything above.
+ */
+#define CEPH_FEATURES_ALL \
+ (CEPH_FEATURE_UID | \
+ CEPH_FEATURE_NOSRCADDR | \
+ CEPH_FEATURE_FLOCK | \
+ CEPH_FEATURE_SUBSCRIBE2 | \
+ CEPH_FEATURE_MONNAMES | \
+ CEPH_FEATURE_RECONNECT_SEQ | \
+ CEPH_FEATURE_DIRLAYOUTHASH | \
+ CEPH_FEATURE_OBJECTLOCATOR | \
+ CEPH_FEATURE_PGID64 | \
+ CEPH_FEATURE_INCSUBOSDMAP | \
+ CEPH_FEATURE_PGPOOL3 | \
+ CEPH_FEATURE_OSDREPLYMUX | \
+ CEPH_FEATURE_OSDENC | \
+ CEPH_FEATURE_MONENC | \
+ CEPH_FEATURE_CRUSH_TUNABLES | \
+ CEPH_FEATURE_MSG_AUTH | \
+ CEPH_FEATURE_CRUSH_TUNABLES2 | \
+ CEPH_FEATURE_CREATEPOOLID | \
+ CEPH_FEATURE_REPLY_CREATE_INODE | \
+ CEPH_FEATURE_MDSENC | \
+ CEPH_FEATURE_OSDHASHPSPOOL | \
+ CEPH_FEATURE_NEW_OSDOP_ENCODING | \
+ CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING | \
+ CEPH_FEATURE_MON_SINGLE_PAXOS | \
+ CEPH_FEATURE_OSD_CACHEPOOL | \
+ CEPH_FEATURE_CRUSH_V2 | \
+ CEPH_FEATURE_EXPORT_PEER | \
+ CEPH_FEATURE_OSD_ERASURE_CODES | \
+ CEPH_FEATURE_OSDMAP_ENC | \
+ CEPH_FEATURE_MDS_INLINE_DATA | \
+ CEPH_FEATURE_CRUSH_TUNABLES3 | \
+ CEPH_FEATURE_OSD_PRIMARY_AFFINITY | \
+ CEPH_FEATURE_MSGR_KEEPALIVE2 | \
+ CEPH_FEATURE_OSD_POOLRESEND | \
+ CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 | \
+ CEPH_FEATURE_OSD_FADVISE_FLAGS | \
+ CEPH_FEATURE_MDS_QUOTA | \
+ CEPH_FEATURE_CRUSH_V4 | \
+ CEPH_FEATURE_MON_METADATA | \
+ CEPH_FEATURE_OSD_BITWISE_HOBJ_SORT | \
+ CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3 | \
+ CEPH_FEATURE_OSD_PROXY_WRITE_FEATURES | \
+ CEPH_FEATURE_OSD_HITSET_GMT | \
+ CEPH_FEATURE_HAMMER_0_94_4 | \
+ CEPH_FEATURE_MON_STATEFUL_SUB | \
+ CEPH_FEATURE_MON_ROUTE_OSDMAP | \
+ CEPH_FEATURE_CRUSH_TUNABLES5 | \
+ CEPH_FEATURE_SERVER_JEWEL | \
+ CEPH_FEATURE_FS_FILE_LAYOUT_V2 | \
+ CEPH_FEATURE_SERVER_KRAKEN | \
+ CEPH_FEATURE_FS_BTIME | \
+ CEPH_FEATURE_FS_CHANGE_ATTR | \
+ CEPH_FEATURE_MSG_ADDR2 | \
+ CEPH_FEATURE_SERVER_LUMINOUS | \
+ CEPH_FEATURE_RESEND_ON_SPLIT | \
+ CEPH_FEATURE_RADOS_BACKOFF | \
+ CEPH_FEATURE_OSD_RECOVERY_DELETES | \
+ 0ULL)
+
+#define CEPH_FEATURES_SUPPORTED_DEFAULT CEPH_FEATURES_ALL
+
+/*
+ * crush related features
+ */
+#define CEPH_FEATURES_CRUSH \
+ (CEPH_FEATURE_CRUSH_TUNABLES | \
+ CEPH_FEATURE_CRUSH_TUNABLES2 | \
+ CEPH_FEATURE_CRUSH_TUNABLES3 | \
+ CEPH_FEATURE_CRUSH_TUNABLES5 | \
+ CEPH_FEATURE_CRUSH_V2 | \
+ CEPH_FEATURE_CRUSH_V4 | \
+ CEPH_FEATUREMASK_CRUSH_CHOOSE_ARGS)
+
+/*
+ * make sure we don't try to use the reserved features
+ */
+#define CEPH_STATIC_ASSERT(x) (void)(sizeof(int[((x)==0) ? -1 : 0]))
+
+static inline void ____build_time_check_for_reserved_bits(void) {
+ CEPH_STATIC_ASSERT((CEPH_FEATURES_ALL &
+ (CEPH_FEATURE_RESERVED |
+ CEPH_FEATURE_RESERVED2 |
+ DEPRECATED_CEPH_FEATURE_RESERVED_BROKEN)) == 0);
+}
+
+#endif
Code Review / stor4nfv.git / blobdiff