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
80static 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