/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __CEPH_FEATURES #define __CEPH_FEATURES /* * 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 … #define CEPH_FEATURE_INCARNATION_2 … #define CEPH_FEATURE_INCARNATION_3 … #define DEFINE_CEPH_FEATURE(bit, incarnation, name) … /* this bit is ignored but still advertised by release *when* */ #define DEFINE_CEPH_FEATURE_DEPRECATED(bit, incarnation, name, when) … /* * 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) … /* * 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 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(…) DEFINE_CEPH_FEATURE( 2, 3, SERVER_NAUTILUS) 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(…) DEFINE_CEPH_FEATURE(14, 2, SERVER_KRAKEN) DEFINE_CEPH_FEATURE(15, 1, MONENC) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE(18, 1, CRUSH_TUNABLES) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE_RETIRED(…) 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(…) DEFINE_CEPH_FEATURE(23, 1, MSG_AUTH) DEFINE_CEPH_FEATURE_RETIRED(…) 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(…) DEFINE_CEPH_FEATURE(28, 2, SERVER_MIMIC) 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(…) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE_RETIRED(…) 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(…) DEFINE_CEPH_FEATURE(46, 1, OSD_FADVISE_FLAGS) DEFINE_CEPH_FEATURE_RETIRED(…) // overlap DEFINE_CEPH_FEATURE_RETIRED(…) // overlap DEFINE_CEPH_FEATURE_RETIRED(…) // overlap DEFINE_CEPH_FEATURE(47, 1, MDS_QUOTA) DEFINE_CEPH_FEATURE(48, 1, CRUSH_V4) DEFINE_CEPH_FEATURE_RETIRED(…) DEFINE_CEPH_FEATURE_RETIRED(…) // 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, CEPHX_V2) // *do not share this bit* 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. */ #define CEPH_FEATURES_SUPPORTED_DEFAULT … #define CEPH_FEATURES_REQUIRED_DEFAULT … #endif
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