src/ceph/src/include/ceph_features.h

   1 #ifndef __CEPH_FEATURES
   2 #define __CEPH_FEATURES
   3
   4 #include "sys/types.h"
   5
   6 /*
   7  * Each time we reclaim bits for reuse we need to specify another bit
   8  * that, if present, indicates we have the new incarnation of that
   9  * feature.  Base case is 1 (first use)
  10  */
  11 #define CEPH_FEATURE_INCARNATION_1 (0ull)
  12 #define CEPH_FEATURE_INCARNATION_2 (1ull<<57) // CEPH_FEATURE_SERVER_JEWEL
  13
  14 #define DEFINE_CEPH_FEATURE(bit, incarnation, name)                     \
  15         const static uint64_t CEPH_FEATURE_##name = (1ULL<<bit);                \
  16         const static uint64_t CEPH_FEATUREMASK_##name =                 \
  17                 (1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
  18
  19 // this bit is ignored but still advertised by release *when*
  20 #define DEFINE_CEPH_FEATURE_DEPRECATED(bit, incarnation, name, when) \
  21         const static uint64_t DEPRECATED_CEPH_FEATURE_##name = (1ULL<<bit); \
  22         const static uint64_t DEPRECATED_CEPH_FEATUREMASK_##name =              \
  23                 (1ULL<<bit | CEPH_FEATURE_INCARNATION_##incarnation);
  24
  25 // this bit is ignored by release *unused* and not advertised by
  26 // release *unadvertised*
  27 #define DEFINE_CEPH_FEATURE_RETIRED(bit, inc, name, unused, unadvertised)
  28
  29
  30 // test for a feature.  this test is safer than a typical mask against
  31 // the bit because it ensures that we have the bit AND the marker for the
  32 // bit's incarnation.  this must be used in any case where the features
  33 // bits may include an old meaning of the bit.
  34 #define HAVE_FEATURE(x, name)                           \
  35         (((x) & (CEPH_FEATUREMASK_##name)) == (CEPH_FEATUREMASK_##name))
  36
  37
  38 /*
  39  * Notes on deprecation:
  40  *
  41  * A *major* release is a release through which all upgrades must pass
  42  * (e.g., jewel).  For example, no pre-jewel server will ever talk to
  43  * a post-jewel server (mon, osd, etc).
  44  *
  45  * For feature bits used *only* on the server-side:
  46  *
  47  *  - In the first phase we indicate that a feature is DEPRECATED as of
  48  *    a particular release.  This is the first major release X (say,
  49  *    jewel) that does not depend on its peers advertising the feature.
  50  *    That is, it safely assumes its peers all have the feature.  We
  51  *    indicate this with the DEPRECATED macro.  For example,
  52  *
  53  *      DEFINE_CEPH_FEATURE_DEPRECATED( 2, 1, MONCLOCKCHECK, JEWEL)
  54  *
  55  *    because 10.2.z (jewel) did not care if its peers advertised this
  56  *    feature bit.
  57  *
  58  *  - In the second phase we stop advertising the the bit and call it
  59  *    RETIRED.  This can normally be done in the *next* major release
  60  *    following the one in which we marked the feature DEPRECATED.  In
  61  *    the above example, for 12.0.z (luminous) we can say:
  62  *
  63  *      DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)
  64  *
  65  *  - The bit can be reused in the first post-luminous release, 13.0.z
  66  *    (m).
  67  *
  68  * This ensures that no two versions who have different meanings for
  69  * the bit ever speak to each other.
  70  */
  71
  72 DEFINE_CEPH_FEATURE( 0, 1, UID)
  73 DEFINE_CEPH_FEATURE( 1, 1, NOSRCADDR)
  74 DEFINE_CEPH_FEATURE_RETIRED( 2, 1, MONCLOCKCHECK, JEWEL, LUMINOUS)
  75
  76 DEFINE_CEPH_FEATURE( 3, 1, FLOCK)
  77 DEFINE_CEPH_FEATURE( 4, 1, SUBSCRIBE2)
  78 DEFINE_CEPH_FEATURE( 5, 1, MONNAMES)
  79 DEFINE_CEPH_FEATURE( 6, 1, RECONNECT_SEQ)
  80 DEFINE_CEPH_FEATURE( 7, 1, DIRLAYOUTHASH)
  81 DEFINE_CEPH_FEATURE( 8, 1, OBJECTLOCATOR)
  82 DEFINE_CEPH_FEATURE( 9, 1, PGID64)
  83 DEFINE_CEPH_FEATURE(10, 1, INCSUBOSDMAP)
  84 DEFINE_CEPH_FEATURE(11, 1, PGPOOL3)
  85 DEFINE_CEPH_FEATURE(12, 1, OSDREPLYMUX)
  86 DEFINE_CEPH_FEATURE(13, 1, OSDENC)
  87 DEFINE_CEPH_FEATURE_RETIRED(14, 1, OMAP, HAMMER, JEWEL)
  88 DEFINE_CEPH_FEATURE(14, 2, SERVER_KRAKEN)
  89 DEFINE_CEPH_FEATURE(15, 1, MONENC)
  90 DEFINE_CEPH_FEATURE_RETIRED(16, 1, QUERY_T, JEWEL, LUMINOUS)
  91
  92 DEFINE_CEPH_FEATURE_RETIRED(17, 1, INDEP_PG_MAP, JEWEL, LUMINOUS)
  93
  94 DEFINE_CEPH_FEATURE(18, 1, CRUSH_TUNABLES)
  95 DEFINE_CEPH_FEATURE_RETIRED(19, 1, CHUNKY_SCRUB, JEWEL, LUMINOUS)
  96
  97 DEFINE_CEPH_FEATURE_RETIRED(20, 1, MON_NULLROUTE, JEWEL, LUMINOUS)
  98
  99 DEFINE_CEPH_FEATURE_RETIRED(21, 1, MON_GV, HAMMER, JEWEL)
 100 DEFINE_CEPH_FEATURE(21, 2, SERVER_LUMINOUS)
 101 DEFINE_CEPH_FEATURE(21, 2, RESEND_ON_SPLIT)  // overlap
 102 DEFINE_CEPH_FEATURE(21, 2, RADOS_BACKOFF)    // overlap
 103 DEFINE_CEPH_FEATURE(21, 2, OSDMAP_PG_UPMAP)  // overlap
 104 DEFINE_CEPH_FEATURE(21, 2, CRUSH_CHOOSE_ARGS) // overlap
 105 DEFINE_CEPH_FEATURE_RETIRED(22, 1, BACKFILL_RESERVATION, JEWEL, LUMINOUS)
 106
 107 DEFINE_CEPH_FEATURE(23, 1, MSG_AUTH)
 108 DEFINE_CEPH_FEATURE_RETIRED(24, 1, RECOVERY_RESERVATION, JEWEL, LUNINOUS)
 109
 110 DEFINE_CEPH_FEATURE(25, 1, CRUSH_TUNABLES2)
 111 DEFINE_CEPH_FEATURE(26, 1, CREATEPOOLID)
 112 DEFINE_CEPH_FEATURE(27, 1, REPLY_CREATE_INODE)
 113 DEFINE_CEPH_FEATURE_RETIRED(28, 1, OSD_HBMSGS, HAMMER, JEWEL)
 114 DEFINE_CEPH_FEATURE(28, 2, SERVER_M)
 115 DEFINE_CEPH_FEATURE(29, 1, MDSENC)
 116 DEFINE_CEPH_FEATURE(30, 1, OSDHASHPSPOOL)
 117 DEFINE_CEPH_FEATURE(31, 1, MON_SINGLE_PAXOS)  // deprecate me
 118 DEFINE_CEPH_FEATURE_RETIRED(32, 1, OSD_SNAPMAPPER, JEWEL, LUMINOUS)
 119
 120 DEFINE_CEPH_FEATURE_RETIRED(33, 1, MON_SCRUB, JEWEL, LUMINOUS)
 121
 122 DEFINE_CEPH_FEATURE_RETIRED(34, 1, OSD_PACKED_RECOVERY, JEWEL, LUMINOUS)
 123
 124 DEFINE_CEPH_FEATURE(35, 1, OSD_CACHEPOOL)
 125 DEFINE_CEPH_FEATURE(36, 1, CRUSH_V2)
 126 DEFINE_CEPH_FEATURE(37, 1, EXPORT_PEER)
 127 DEFINE_CEPH_FEATURE(38, 1, OSD_ERASURE_CODES)
 128 DEFINE_CEPH_FEATURE(38, 1, OSD_OSD_TMAP2OMAP) // overlap
 129 DEFINE_CEPH_FEATURE(39, 1, OSDMAP_ENC)
 130 DEFINE_CEPH_FEATURE(40, 1, MDS_INLINE_DATA)
 131 DEFINE_CEPH_FEATURE(41, 1, CRUSH_TUNABLES3)
 132 DEFINE_CEPH_FEATURE(41, 1, OSD_PRIMARY_AFFINITY) // overlap
 133 DEFINE_CEPH_FEATURE(42, 1, MSGR_KEEPALIVE2)
 134 DEFINE_CEPH_FEATURE(43, 1, OSD_POOLRESEND)
 135 DEFINE_CEPH_FEATURE(44, 1, ERASURE_CODE_PLUGINS_V2)
 136 DEFINE_CEPH_FEATURE_RETIRED(45, 1, OSD_SET_ALLOC_HINT, JEWEL, LUMINOUS)
 137
 138 DEFINE_CEPH_FEATURE(46, 1, OSD_FADVISE_FLAGS)
 139 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_REPOP, JEWEL, LUMINOUS) // overlap
 140 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_OBJECT_DIGEST, JEWEL, LUMINOUS) // overlap
 141 DEFINE_CEPH_FEATURE_RETIRED(46, 1, OSD_TRANSACTION_MAY_LAYOUT, JEWEL, LUMINOUS) // overlap
 142
 143 DEFINE_CEPH_FEATURE(47, 1, MDS_QUOTA)
 144 DEFINE_CEPH_FEATURE(48, 1, CRUSH_V4)
 145 DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_MIN_SIZE_RECOVERY, JEWEL, LUMINOUS)
 146 DEFINE_CEPH_FEATURE_RETIRED(49, 1, OSD_PROXY_FEATURES, JEWEL, LUMINOUS) // overlap
 147
 148 DEFINE_CEPH_FEATURE(50, 1, MON_METADATA)
 149 DEFINE_CEPH_FEATURE(51, 1, OSD_BITWISE_HOBJ_SORT)
 150 DEFINE_CEPH_FEATURE(52, 1, OSD_PROXY_WRITE_FEATURES)
 151 DEFINE_CEPH_FEATURE(53, 1, ERASURE_CODE_PLUGINS_V3)
 152 DEFINE_CEPH_FEATURE(54, 1, OSD_HITSET_GMT)
 153 DEFINE_CEPH_FEATURE(55, 1, HAMMER_0_94_4)
 154 DEFINE_CEPH_FEATURE(56, 1, NEW_OSDOP_ENCODING)
 155 DEFINE_CEPH_FEATURE(57, 1, MON_STATEFUL_SUB)
 156 DEFINE_CEPH_FEATURE(57, 1, MON_ROUTE_OSDMAP) // overlap
 157 DEFINE_CEPH_FEATURE(57, 1, OSDSUBOP_NO_SNAPCONTEXT) // overlap
 158 DEFINE_CEPH_FEATURE(57, 1, SERVER_JEWEL) // overlap
 159 DEFINE_CEPH_FEATURE(58, 1, CRUSH_TUNABLES5)
 160 DEFINE_CEPH_FEATURE(58, 1, NEW_OSDOPREPLY_ENCODING) // overlap
 161 DEFINE_CEPH_FEATURE(58, 1, FS_FILE_LAYOUT_V2) // overlap
 162 DEFINE_CEPH_FEATURE(59, 1, FS_BTIME)
 163 DEFINE_CEPH_FEATURE(59, 1, FS_CHANGE_ATTR) // overlap
 164 DEFINE_CEPH_FEATURE(59, 1, MSG_ADDR2) // overlap
 165 DEFINE_CEPH_FEATURE(60, 1, OSD_RECOVERY_DELETES) // *do not share this bit*
 166
 167 DEFINE_CEPH_FEATURE(61, 1, RESERVED2)          // unused, but slow down!
 168 DEFINE_CEPH_FEATURE(62, 1, RESERVED)           // do not use; used as a sentinal
 169 DEFINE_CEPH_FEATURE_DEPRECATED(63, 1, RESERVED_BROKEN, LUMINOUS) // client-facing
 170
 171
 172 /*
 173  * Features supported.  Should be everything above.
 174  */
 175 #define CEPH_FEATURES_ALL                \
 176         (CEPH_FEATURE_UID |              \
 177          CEPH_FEATURE_NOSRCADDR |        \
 178          CEPH_FEATURE_FLOCK |            \
 179          CEPH_FEATURE_SUBSCRIBE2 |       \
 180          CEPH_FEATURE_MONNAMES |         \
 181          CEPH_FEATURE_RECONNECT_SEQ |    \
 182          CEPH_FEATURE_DIRLAYOUTHASH |    \
 183          CEPH_FEATURE_OBJECTLOCATOR |    \
 184          CEPH_FEATURE_PGID64 |           \
 185          CEPH_FEATURE_INCSUBOSDMAP |     \
 186          CEPH_FEATURE_PGPOOL3 |          \
 187          CEPH_FEATURE_OSDREPLYMUX |      \
 188          CEPH_FEATURE_OSDENC |           \
 189          CEPH_FEATURE_MONENC |           \
 190          CEPH_FEATURE_CRUSH_TUNABLES |   \
 191          CEPH_FEATURE_MSG_AUTH |             \
 192          CEPH_FEATURE_CRUSH_TUNABLES2 |      \
 193          CEPH_FEATURE_CREATEPOOLID |         \
 194          CEPH_FEATURE_REPLY_CREATE_INODE |   \
 195          CEPH_FEATURE_MDSENC |                  \
 196          CEPH_FEATURE_OSDHASHPSPOOL |       \
 197          CEPH_FEATURE_NEW_OSDOP_ENCODING |        \
 198          CEPH_FEATURE_NEW_OSDOPREPLY_ENCODING | \
 199          CEPH_FEATURE_MON_SINGLE_PAXOS |    \
 200          CEPH_FEATURE_OSD_CACHEPOOL |       \
 201          CEPH_FEATURE_CRUSH_V2 |            \
 202          CEPH_FEATURE_EXPORT_PEER |         \
 203          CEPH_FEATURE_OSD_ERASURE_CODES |   \
 204          CEPH_FEATURE_OSDMAP_ENC |          \
 205          CEPH_FEATURE_MDS_INLINE_DATA |     \
 206          CEPH_FEATURE_CRUSH_TUNABLES3 |     \
 207          CEPH_FEATURE_OSD_PRIMARY_AFFINITY |    \
 208          CEPH_FEATURE_MSGR_KEEPALIVE2 | \
 209          CEPH_FEATURE_OSD_POOLRESEND |  \
 210          CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 |   \
 211          CEPH_FEATURE_OSD_FADVISE_FLAGS |     \
 212          CEPH_FEATURE_MDS_QUOTA | \
 213          CEPH_FEATURE_CRUSH_V4 |             \
 214          CEPH_FEATURE_MON_METADATA |                     \
 215          CEPH_FEATURE_OSD_BITWISE_HOBJ_SORT |            \
 216          CEPH_FEATURE_ERASURE_CODE_PLUGINS_V3 |   \
 217          CEPH_FEATURE_OSD_PROXY_WRITE_FEATURES |         \
 218          CEPH_FEATURE_OSD_HITSET_GMT |                   \
 219          CEPH_FEATURE_HAMMER_0_94_4 |            \
 220          CEPH_FEATURE_MON_STATEFUL_SUB |         \
 221          CEPH_FEATURE_MON_ROUTE_OSDMAP |         \
 222          CEPH_FEATURE_CRUSH_TUNABLES5 |     \
 223          CEPH_FEATURE_SERVER_JEWEL |  \
 224          CEPH_FEATURE_FS_FILE_LAYOUT_V2 |                \
 225          CEPH_FEATURE_SERVER_KRAKEN |   \
 226          CEPH_FEATURE_FS_BTIME |                         \
 227          CEPH_FEATURE_FS_CHANGE_ATTR |                   \
 228          CEPH_FEATURE_MSG_ADDR2 | \
 229          CEPH_FEATURE_SERVER_LUMINOUS |         \
 230          CEPH_FEATURE_RESEND_ON_SPLIT |         \
 231          CEPH_FEATURE_RADOS_BACKOFF |           \
 232          CEPH_FEATURE_OSD_RECOVERY_DELETES | \
 233          0ULL)
 234
 235 #define CEPH_FEATURES_SUPPORTED_DEFAULT  CEPH_FEATURES_ALL
 236
 237 /*
 238  * crush related features
 239  */
 240 #define CEPH_FEATURES_CRUSH                     \
 241         (CEPH_FEATURE_CRUSH_TUNABLES |          \
 242          CEPH_FEATURE_CRUSH_TUNABLES2 |         \
 243          CEPH_FEATURE_CRUSH_TUNABLES3 |         \
 244          CEPH_FEATURE_CRUSH_TUNABLES5 |         \
 245          CEPH_FEATURE_CRUSH_V2 |                \
 246          CEPH_FEATURE_CRUSH_V4 |                \
 247          CEPH_FEATUREMASK_CRUSH_CHOOSE_ARGS)
 248
 249 /*
 250  * make sure we don't try to use the reserved features
 251  */
 252 #define CEPH_STATIC_ASSERT(x) (void)(sizeof(int[((x)==0) ? -1 : 0]))
 253
 254 static inline void ____build_time_check_for_reserved_bits(void) {
 255         CEPH_STATIC_ASSERT((CEPH_FEATURES_ALL &
 256                             (CEPH_FEATURE_RESERVED |
 257                              CEPH_FEATURE_RESERVED2 |
 258                              DEPRECATED_CEPH_FEATURE_RESERVED_BROKEN)) == 0);
 259 }
 260
 261 #endif