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 #define CEPH_FEATURE_MSGR_KEEPALIVE2   (1ULL<<42)
54 #define CEPH_FEATURE_OSD_POOLRESEND    (1ULL<<43)
55 #define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 (1ULL<<44)
56 #define CEPH_FEATURE_OSD_SET_ALLOC_HINT (1ULL<<45)
57 #define CEPH_FEATURE_OSD_FADVISE_FLAGS (1ULL<<46)
58 #define CEPH_FEATURE_OSD_REPOP         (1ULL<<46)   /* overlap with fadvise */
59 #define CEPH_FEATURE_OSD_OBJECT_DIGEST  (1ULL<<46)  /* overlap with fadvise */
60 #define CEPH_FEATURE_OSD_TRANSACTION_MAY_LAYOUT (1ULL<<46) /* overlap w/ fadvise */
61 #define CEPH_FEATURE_MDS_QUOTA      (1ULL<<47)
62 #define CEPH_FEATURE_CRUSH_V4      (1ULL<<48)  /* straw2 buckets */
63 #define CEPH_FEATURE_OSD_MIN_SIZE_RECOVERY (1ULL<<49)
64 // duplicated since it was introduced at the same time as MIN_SIZE_RECOVERY
65 #define CEPH_FEATURE_OSD_PROXY_FEATURES (1ULL<<49)  /* overlap w/ above */
66 
67 /*
68  * The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
69  * vector to evaluate to 64 bit ~0.  To cope, we designate 1ULL << 63
70  * to mean 33 bit ~0, and introduce a helper below to do the
71  * translation.
72  *
73  * This was introduced by ceph.git commit
74  *   9ea02b84104045c2ffd7e7f4e7af512953855ecd v0.58-657-g9ea02b8
75  * and fixed by ceph.git commit
76  *   4255b5c2fb54ae40c53284b3ab700fdfc7e61748 v0.65-263-g4255b5c
77  */
78 #define CEPH_FEATURE_RESERVED (1ULL<<63)
79 
80 static inline u64 ceph_sanitize_features(u64 features)
81 {
82 	if (features & CEPH_FEATURE_RESERVED) {
83 		/* everything through OSD_SNAPMAPPER */
84 		return 0x1ffffffffull;
85 	} else {
86 		return features;
87 	}
88 }
89 
90 /*
91  * Features supported.
92  */
93 #define CEPH_FEATURES_SUPPORTED_DEFAULT		\
94 	(CEPH_FEATURE_NOSRCADDR |		\
95 	 CEPH_FEATURE_RECONNECT_SEQ |		\
96 	 CEPH_FEATURE_PGID64 |			\
97 	 CEPH_FEATURE_PGPOOL3 |			\
98 	 CEPH_FEATURE_OSDENC |			\
99 	 CEPH_FEATURE_CRUSH_TUNABLES |		\
100 	 CEPH_FEATURE_MSG_AUTH |		\
101 	 CEPH_FEATURE_CRUSH_TUNABLES2 |		\
102 	 CEPH_FEATURE_REPLY_CREATE_INODE |	\
103 	 CEPH_FEATURE_OSDHASHPSPOOL |		\
104 	 CEPH_FEATURE_OSD_CACHEPOOL |		\
105 	 CEPH_FEATURE_CRUSH_V2 |		\
106 	 CEPH_FEATURE_EXPORT_PEER |		\
107 	 CEPH_FEATURE_OSDMAP_ENC |		\
108 	 CEPH_FEATURE_CRUSH_TUNABLES3 |		\
109 	 CEPH_FEATURE_OSD_PRIMARY_AFFINITY |	\
110 	 CEPH_FEATURE_CRUSH_V4)
111 
112 #define CEPH_FEATURES_REQUIRED_DEFAULT   \
113 	(CEPH_FEATURE_NOSRCADDR |	 \
114 	 CEPH_FEATURE_RECONNECT_SEQ |	 \
115 	 CEPH_FEATURE_PGID64 |		 \
116 	 CEPH_FEATURE_PGPOOL3 |		 \
117 	 CEPH_FEATURE_OSDENC)
118 
119 #endif
120