include/linux/ceph/ceph_features.h

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