include/linux/ceph/ceph_features.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __CEPH_FEATURES
   3 #define __CEPH_FEATURES
   4
   5 /*
   6  * Each time we reclaim bits for reuse we need to specify another bit
   7  * that, if present, indicates we have the new incarnation of that
   8  * feature.  Base case is 1 (first use).
   9  */
  10 #define CEPH_FEATURE_INCARNATION_1 (0ull)
  11 #define CEPH_FEATURE_INCARNATION_2 (1ull<<57) // CEPH_FEATURE_SERVER_JEWEL
  12
  13 #define DEFINE_CEPH_FEATURE(bit, incarnation, name)                     \
  14         static const uint64_t CEPH_FEATURE_##name = (1ULL<<bit);                \
  15         static const uint64_t CEPH_FEATUREMASK_##name =                 \
  16                 (1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
  17
  18 /* this bit is ignored but still advertised by release *when* */
  19 #define DEFINE_CEPH_FEATURE_DEPRECATED(bit, incarnation, name, when) \
  20         static const uint64_t DEPRECATED_CEPH_FEATURE_##name = (1ULL<<bit); \
  21         static const uint64_t DEPRECATED_CEPH_FEATUREMASK_##name =              \
  22                 (1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
  23
  24 /*
  25  * this bit is ignored by release *unused* and not advertised by
  26  * release *unadvertised*
  27  */
  28 #define DEFINE_CEPH_FEATURE_RETIRED(bit, inc, name, unused, unadvertised)
  29
  30
  31 /*
  32  * test for a feature.  this test is safer than a typical mask against
  33  * the bit because it ensures that we have the bit AND the marker for the
  34  * bit's incarnation.  this must be used in any case where the features
  35  * bits may include an old meaning of the bit.
  36  */
  37 #define CEPH_HAVE_FEATURE(x, name)                      \
  38         (((x) & (CEPH_FEATUREMASK_##name)) == (CEPH_FEATUREMASK_##name))
  39
  40
  41 /*
  42  * Notes on deprecation:
  43  *
  44  * A *major* release is a release through which all upgrades must pass
  45  * (e.g., jewel).  For example, no pre-jewel server will ever talk to
  46  * a post-jewel server (mon, osd, etc).
  47  *
  48  * For feature bits used *only* on the server-side:
  49  *
  50  *  - In the first phase we indicate that a feature is DEPRECATED as of
  51  *    a particular release.  This is the first major release X (say,
  52  *    jewel) that does not depend on its peers advertising the feature.
  53  *    That is, it safely assumes its peers all have the feature.  We
  54  *    indicate this with the DEPRECATED macro.  For example,
  55  *
  56  *      DEFINE_CEPH_FEATURE_DEPRECATED( 2, 1, MONCLOCKCHECK, JEWEL)
  57  *
  58  *    because 10.2.z (jewel) did not care if its peers advertised this
  59  *    feature bit.
  60  *
  61  *  - In the second phase we stop advertising the the bit and call it
  62  *    RETIRED.  This can normally be done in the *next* major release
  63  *    following the one in which we marked the feature DEPRECATED.  In
  64  *    the above example, for 12.0.z (luminous) we can say:
  65  *
  66  *      DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)
  67  *
  68  *  - The bit can be reused in the first post-luminous release, 13.0.z
  69  *    (m).
  70  *
  71  * This ensures that no two versions who have different meanings for
  72  * the bit ever speak to each other.
  73  */
  74
  75 DEFINE_CEPH_FEATURE( 0, 1, UID)
  76 DEFINE_CEPH_FEATURE( 1, 1, NOSRCADDR)
  77 DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)
  78
  79 DEFINE_CEPH_FEATURE( 3, 1, FLOCK)
  80 DEFINE_CEPH_FEATURE( 4, 1, SUBSCRIBE2)
  81 DEFINE_CEPH_FEATURE( 5, 1, MONNAMES)
  82 DEFINE_CEPH_FEATURE( 6, 1, RECONNECT_SEQ)
  83 DEFINE_CEPH_FEATURE( 7, 1, DIRLAYOUTHASH)
  84 DEFINE_CEPH_FEATURE( 8, 1, OBJECTLOCATOR)
  85 DEFINE_CEPH_FEATURE( 9, 1, PGID64)
  86 DEFINE_CEPH_FEATURE(10, 1, INCSUBOSDMAP)
  87 DEFINE_CEPH_FEATURE(11, 1, PGPOOL3)
  88 DEFINE_CEPH_FEATURE(12, 1, OSDREPLYMUX)
  89 DEFINE_CEPH_FEATURE(13, 1, OSDENC)
  90 DEFINE_CEPH_FEATURE_RETIRED(14, 1, OMAP, HAMMER, JEWEL)
  91 DEFINE_CEPH_FEATURE(14, 2, SERVER_KRAKEN)
  92 DEFINE_CEPH_FEATURE(15, 1, MONENC)
  93 DEFINE_CEPH_FEATURE_RETIRED(16, 1, QUERY_T, JEWEL, LUMINOUS)
  94
  95 DEFINE_CEPH_FEATURE_RETIRED(17, 1, INDEP_PG_MAP, JEWEL, LUMINOUS)
  96
  97 DEFINE_CEPH_FEATURE(18, 1, CRUSH_TUNABLES)
  98 DEFINE_CEPH_FEATURE_RETIRED(19, 1, CHUNKY_SCRUB, JEWEL, LUMINOUS)
  99
 100 DEFINE_CEPH_FEATURE_RETIRED(20, 1, MON_NULLROUTE, JEWEL, LUMINOUS)
 101
 102 DEFINE_CEPH_FEATURE_RETIRED(21, 1, MON_GV, HAMMER, JEWEL)
 103 DEFINE_CEPH_FEATURE(21, 2, SERVER_LUMINOUS)
 104 DEFINE_CEPH_FEATURE(21, 2, RESEND_ON_SPLIT)  // overlap
 105 DEFINE_CEPH_FEATURE(21, 2, RADOS_BACKOFF)    // overlap
 106 DEFINE_CEPH_FEATURE(21, 2, OSDMAP_PG_UPMAP)  // overlap
 107 DEFINE_CEPH_FEATURE(21, 2, CRUSH_CHOOSE_ARGS) // overlap
 108 DEFINE_CEPH_FEATURE_RETIRED(22, 1, BACKFILL_RESERVATION, JEWEL, LUMINOUS)
 109
 110 DEFINE_CEPH_FEATURE(23, 1, MSG_AUTH)
 111 DEFINE_CEPH_FEATURE_RETIRED(24, 1, RECOVERY_RESERVATION, JEWEL, LUNINOUS)
 112
 113 DEFINE_CEPH_FEATURE(25, 1, CRUSH_TUNABLES2)
 114 DEFINE_CEPH_FEATURE(26, 1, CREATEPOOLID)
 115 DEFINE_CEPH_FEATURE(27, 1, REPLY_CREATE_INODE)
 116 DEFINE_CEPH_FEATURE_RETIRED(28, 1, OSD_HBMSGS, HAMMER, JEWEL)
 117 DEFINE_CEPH_FEATURE(28, 2, SERVER_M)
 118 DEFINE_CEPH_FEATURE(29, 1, MDSENC)
 119 DEFINE_CEPH_FEATURE(30, 1, OSDHASHPSPOOL)
 120 DEFINE_CEPH_FEATURE(31, 1, MON_SINGLE_PAXOS)  // deprecate me
 121 DEFINE_CEPH_FEATURE_RETIRED(32, 1, OSD_SNAPMAPPER, JEWEL, LUMINOUS)
 122
 123 DEFINE_CEPH_FEATURE_RETIRED(33, 1, MON_SCRUB, JEWEL, LUMINOUS)
 124
 125 DEFINE_CEPH_FEATURE_RETIRED(34, 1, OSD_PACKED_RECOVERY, JEWEL, LUMINOUS)
 126
 127 DEFINE_CEPH_FEATURE(35, 1, OSD_CACHEPOOL)
 128 DEFINE_CEPH_FEATURE(36, 1, CRUSH_V2)
 129 DEFINE_CEPH_FEATURE(37, 1, EXPORT_PEER)
 130 DEFINE_CEPH_FEATURE(38, 1, OSD_ERASURE_CODES)
 131 DEFINE_CEPH_FEATURE(38, 1, OSD_OSD_TMAP2OMAP) // overlap
 132 DEFINE_CEPH_FEATURE(39, 1, OSDMAP_ENC)
 133 DEFINE_CEPH_FEATURE(40, 1, MDS_INLINE_DATA)
 134 DEFINE_CEPH_FEATURE(41, 1, CRUSH_TUNABLES3)
 135 DEFINE_CEPH_FEATURE(41, 1, OSD_PRIMARY_AFFINITY) // overlap
 136 DEFINE_CEPH_FEATURE(42, 1, MSGR_KEEPALIVE2)
 137 DEFINE_CEPH_FEATURE(43, 1, OSD_POOLRESEND)
 138 DEFINE_CEPH_FEATURE(44, 1, ERASURE_CODE_PLUGINS_V2)
 139 DEFINE_CEPH_FEATURE_RETIRED(45, 1, OSD_SET_ALLOC_HINT, JEWEL, LUMINOUS)
 140
 141 DEFINE_CEPH_FEATURE(46, 1, OSD_FADVISE_FLAGS)
 142 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_REPOP, JEWEL, LUMINOUS) // overlap
 143 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_OBJECT_DIGEST, JEWEL, LUMINOUS) // overlap
 144 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_TRANSACTION_MAY_LAYOUT, JEWEL, LUMINOUS) // overlap
 145
 146 DEFINE_CEPH_FEATURE(47, 1, MDS_QUOTA)
 147 DEFINE_CEPH_FEATURE(48, 1, CRUSH_V4)
 148 DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_MIN_SIZE_RECOVERY, JEWEL, LUMINOUS)
 149 DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_PROXY_FEATURES, JEWEL, LUMINOUS) // overlap
 150
 151 DEFINE_CEPH_FEATURE(50, 1, MON_METADATA)
 152 DEFINE_CEPH_FEATURE(51, 1, OSD_BITWISE_HOBJ_SORT)
 153 DEFINE_CEPH_FEATURE(52, 1, OSD_PROXY_WRITE_FEATURES)
 154 DEFINE_CEPH_FEATURE(53, 1, ERASURE_CODE_PLUGINS_V3)
 155 DEFINE_CEPH_FEATURE(54, 1, OSD_HITSET_GMT)
 156 DEFINE_CEPH_FEATURE(55, 1, HAMMER_0_94_4)
 157 DEFINE_CEPH_FEATURE(56, 1, NEW_OSDOP_ENCODING)
 158 DEFINE_CEPH_FEATURE(57, 1, MON_STATEFUL_SUB)
 159 DEFINE_CEPH_FEATURE(57, 1, MON_ROUTE_OSDMAP) // overlap
 160 DEFINE_CEPH_FEATURE(57, 1, OSDSUBOP_NO_SNAPCONTEXT) // overlap
 161 DEFINE_CEPH_FEATURE(57, 1, SERVER_JEWEL) // overlap
 162 DEFINE_CEPH_FEATURE(58, 1, CRUSH_TUNABLES5)
 163 DEFINE_CEPH_FEATURE(58, 1, NEW_OSDOPREPLY_ENCODING) // overlap
 164 DEFINE_CEPH_FEATURE(58, 1, FS_FILE_LAYOUT_V2) // overlap
 165 DEFINE_CEPH_FEATURE(59, 1, FS_BTIME)
 166 DEFINE_CEPH_FEATURE(59, 1, FS_CHANGE_ATTR) // overlap
 167 DEFINE_CEPH_FEATURE(59, 1, MSG_ADDR2) // overlap
 168 DEFINE_CEPH_FEATURE(60, 1, OSD_RECOVERY_DELETES) // *do not share this bit*
 169 DEFINE_CEPH_FEATURE(61, 1, CEPHX_V2)             // *do not share this bit*
 170
 171 DEFINE_CEPH_FEATURE(62, 1, RESERVED)           // do not use; used as a sentinal
 172 DEFINE_CEPH_FEATURE_DEPRECATED(63, 1, RESERVED_BROKEN, LUMINOUS) // client-facing
 173
 174
 175 /*
 176  * Features supported.
 177  */
 178 #define CEPH_FEATURES_SUPPORTED_DEFAULT         \
 179         (CEPH_FEATURE_NOSRCADDR |               \
 180          CEPH_FEATURE_FLOCK |                   \
 181          CEPH_FEATURE_SUBSCRIBE2 |              \
 182          CEPH_FEATURE_RECONNECT_SEQ |           \
 183          CEPH_FEATURE_DIRLAYOUTHASH |           \
 184          CEPH_FEATURE_PGID64 |                  \
 185          CEPH_FEATURE_PGPOOL3 |                 \
 186          CEPH_FEATURE_OSDENC |                  \
 187          CEPH_FEATURE_CRUSH_TUNABLES |          \
 188          CEPH_FEATURE_SERVER_LUMINOUS |         \
 189          CEPH_FEATURE_RESEND_ON_SPLIT |         \
 190          CEPH_FEATURE_RADOS_BACKOFF |           \
 191          CEPH_FEATURE_OSDMAP_PG_UPMAP |         \
 192          CEPH_FEATURE_CRUSH_CHOOSE_ARGS |       \
 193          CEPH_FEATURE_MSG_AUTH |                \
 194          CEPH_FEATURE_CRUSH_TUNABLES2 |         \
 195          CEPH_FEATURE_REPLY_CREATE_INODE |      \
 196          CEPH_FEATURE_MDSENC |                  \
 197          CEPH_FEATURE_OSDHASHPSPOOL |           \
 198          CEPH_FEATURE_OSD_CACHEPOOL |           \
 199          CEPH_FEATURE_CRUSH_V2 |                \
 200          CEPH_FEATURE_EXPORT_PEER |             \
 201          CEPH_FEATURE_OSDMAP_ENC |              \
 202          CEPH_FEATURE_MDS_INLINE_DATA |         \
 203          CEPH_FEATURE_CRUSH_TUNABLES3 |         \
 204          CEPH_FEATURE_OSD_PRIMARY_AFFINITY |    \
 205          CEPH_FEATURE_MSGR_KEEPALIVE2 |         \
 206          CEPH_FEATURE_OSD_POOLRESEND |          \
 207          CEPH_FEATURE_MDS_QUOTA |               \
 208          CEPH_FEATURE_CRUSH_V4 |                \
 209          CEPH_FEATURE_NEW_OSDOP_ENCODING |      \
 210          CEPH_FEATURE_SERVER_JEWEL |            \
 211          CEPH_FEATURE_MON_STATEFUL_SUB |        \
 212          CEPH_FEATURE_CRUSH_TUNABLES5 |         \
 213          CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING | \
 214          CEPH_FEATURE_CEPHX_V2)
 215
 216 #define CEPH_FEATURES_REQUIRED_DEFAULT  0
 217
 218 #endif