include/linux/ceph/ceph_features.h

   1 #ifndef __CEPH_FEATURES
   2 #define __CEPH_FEATURES
   3
   4 /*
   5  * feature bits
   6  */
   7 #define CEPH_FEATURE_UID            (1ULL<<0)
   8 #define CEPH_FEATURE_NOSRCADDR      (1ULL<<1)
   9 #define CEPH_FEATURE_MONCLOCKCHECK  (1ULL<<2)
  10 #define CEPH_FEATURE_FLOCK          (1ULL<<3)
  11 #define CEPH_FEATURE_SUBSCRIBE2     (1ULL<<4)
  12 #define CEPH_FEATURE_MONNAMES       (1ULL<<5)
  13 #define CEPH_FEATURE_RECONNECT_SEQ  (1ULL<<6)
  14 #define CEPH_FEATURE_DIRLAYOUTHASH  (1ULL<<7)
  15 #define CEPH_FEATURE_OBJECTLOCATOR  (1ULL<<8)
  16 #define CEPH_FEATURE_PGID64         (1ULL<<9)
  17 #define CEPH_FEATURE_INCSUBOSDMAP   (1ULL<<10)
  18 #define CEPH_FEATURE_PGPOOL3        (1ULL<<11)
  19 #define CEPH_FEATURE_OSDREPLYMUX    (1ULL<<12)
  20 #define CEPH_FEATURE_OSDENC         (1ULL<<13)
  21 #define CEPH_FEATURE_OMAP           (1ULL<<14)
  22 #define CEPH_FEATURE_MONENC         (1ULL<<15)
  23 #define CEPH_FEATURE_QUERY_T        (1ULL<<16)
  24 #define CEPH_FEATURE_INDEP_PG_MAP   (1ULL<<17)
  25 #define CEPH_FEATURE_CRUSH_TUNABLES (1ULL<<18)
  26 #define CEPH_FEATURE_CHUNKY_SCRUB   (1ULL<<19)
  27 #define CEPH_FEATURE_MON_NULLROUTE  (1ULL<<20)
  28 #define CEPH_FEATURE_MON_GV         (1ULL<<21)
  29 #define CEPH_FEATURE_BACKFILL_RESERVATION (1ULL<<22)
  30 #define CEPH_FEATURE_MSG_AUTH       (1ULL<<23)
  31 #define CEPH_FEATURE_RECOVERY_RESERVATION (1ULL<<24)
  32 #define CEPH_FEATURE_CRUSH_TUNABLES2 (1ULL<<25)
  33 #define CEPH_FEATURE_CREATEPOOLID   (1ULL<<26)
  34 #define CEPH_FEATURE_REPLY_CREATE_INODE   (1ULL<<27)
  35 #define CEPH_FEATURE_OSD_HBMSGS     (1ULL<<28)
  36 #define CEPH_FEATURE_MDSENC         (1ULL<<29)
  37 #define CEPH_FEATURE_OSDHASHPSPOOL  (1ULL<<30)
  38 #define CEPH_FEATURE_MON_SINGLE_PAXOS (1ULL<<31)
  39 #define CEPH_FEATURE_OSD_SNAPMAPPER (1ULL<<32)
  40 #define CEPH_FEATURE_MON_SCRUB      (1ULL<<33)
  41 #define CEPH_FEATURE_OSD_PACKED_RECOVERY (1ULL<<34)
  42 #define CEPH_FEATURE_OSD_CACHEPOOL (1ULL<<35)
  43 #define CEPH_FEATURE_CRUSH_V2      (1ULL<<36)  /* new indep; SET_* steps */
  44 #define CEPH_FEATURE_EXPORT_PEER   (1ULL<<37)
  45 #define CEPH_FEATURE_OSD_ERASURE_CODES (1ULL<<38)
  46 #define CEPH_FEATURE_OSD_TMAP2OMAP (1ULL<<38)   /* overlap with EC */
  47 /* The process supports new-style OSDMap encoding. Monitors also use
  48    this bit to determine if peers support NAK messages. */
  49 #define CEPH_FEATURE_OSDMAP_ENC    (1ULL<<39)
  50 #define CEPH_FEATURE_MDS_INLINE_DATA     (1ULL<<40)
  51 #define CEPH_FEATURE_CRUSH_TUNABLES3     (1ULL<<41)
  52 #define CEPH_FEATURE_OSD_PRIMARY_AFFINITY (1ULL<<41)  /* overlap w/ tunables3 */
  53
  54 /*
  55  * The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
  56  * vector to evaluate to 64 bit ~0.  To cope, we designate 1ULL << 63
  57  * to mean 33 bit ~0, and introduce a helper below to do the
  58  * translation.
  59  *
  60  * This was introduced by ceph.git commit
  61  *   9ea02b84104045c2ffd7e7f4e7af512953855ecd v0.58-657-g9ea02b8
  62  * and fixed by ceph.git commit
  63  *   4255b5c2fb54ae40c53284b3ab700fdfc7e61748 v0.65-263-g4255b5c
  64  */
  65 #define CEPH_FEATURE_RESERVED (1ULL<<63)
  66
  67 static inline u64 ceph_sanitize_features(u64 features)
  68 {
  69         if (features & CEPH_FEATURE_RESERVED) {
  70                 /* everything through OSD_SNAPMAPPER */
  71                 return 0x1ffffffffull;
  72         } else {
  73                 return features;
  74         }
  75 }
  76
  77 /*
  78  * Features supported.
  79  */
  80 #define CEPH_FEATURES_SUPPORTED_DEFAULT         \
  81         (CEPH_FEATURE_NOSRCADDR |               \
  82          CEPH_FEATURE_RECONNECT_SEQ |           \
  83          CEPH_FEATURE_PGID64 |                  \
  84          CEPH_FEATURE_PGPOOL3 |                 \
  85          CEPH_FEATURE_OSDENC |                  \
  86          CEPH_FEATURE_CRUSH_TUNABLES |          \
  87          CEPH_FEATURE_CRUSH_TUNABLES2 |         \
  88          CEPH_FEATURE_REPLY_CREATE_INODE |      \
  89          CEPH_FEATURE_OSDHASHPSPOOL |           \
  90          CEPH_FEATURE_OSD_CACHEPOOL |           \
  91          CEPH_FEATURE_CRUSH_V2 |                \
  92          CEPH_FEATURE_EXPORT_PEER |             \
  93          CEPH_FEATURE_OSDMAP_ENC |              \
  94          CEPH_FEATURE_CRUSH_TUNABLES3 |         \
  95          CEPH_FEATURE_OSD_PRIMARY_AFFINITY)
  96
  97 #define CEPH_FEATURES_REQUIRED_DEFAULT   \
  98         (CEPH_FEATURE_NOSRCADDR |        \
  99          CEPH_FEATURE_RECONNECT_SEQ |    \
 100          CEPH_FEATURE_PGID64 |           \
 101          CEPH_FEATURE_PGPOOL3 |          \
 102          CEPH_FEATURE_OSDENC)
 103
 104 #endif