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-rw-r--r--kernel/include/linux/ceph/ceph_features.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/kernel/include/linux/ceph/ceph_features.h b/kernel/include/linux/ceph/ceph_features.h
new file mode 100644
index 000000000..4763ad64e
--- /dev/null
+++ b/kernel/include/linux/ceph/ceph_features.h
@@ -0,0 +1,119 @@
+#ifndef __CEPH_FEATURES
+#define __CEPH_FEATURES
+
+/*
+ * feature bits
+ */
+#define CEPH_FEATURE_UID (1ULL<<0)
+#define CEPH_FEATURE_NOSRCADDR (1ULL<<1)
+#define CEPH_FEATURE_MONCLOCKCHECK (1ULL<<2)
+#define CEPH_FEATURE_FLOCK (1ULL<<3)
+#define CEPH_FEATURE_SUBSCRIBE2 (1ULL<<4)
+#define CEPH_FEATURE_MONNAMES (1ULL<<5)
+#define CEPH_FEATURE_RECONNECT_SEQ (1ULL<<6)
+#define CEPH_FEATURE_DIRLAYOUTHASH (1ULL<<7)
+#define CEPH_FEATURE_OBJECTLOCATOR (1ULL<<8)
+#define CEPH_FEATURE_PGID64 (1ULL<<9)
+#define CEPH_FEATURE_INCSUBOSDMAP (1ULL<<10)
+#define CEPH_FEATURE_PGPOOL3 (1ULL<<11)
+#define CEPH_FEATURE_OSDREPLYMUX (1ULL<<12)
+#define CEPH_FEATURE_OSDENC (1ULL<<13)
+#define CEPH_FEATURE_OMAP (1ULL<<14)
+#define CEPH_FEATURE_MONENC (1ULL<<15)
+#define CEPH_FEATURE_QUERY_T (1ULL<<16)
+#define CEPH_FEATURE_INDEP_PG_MAP (1ULL<<17)
+#define CEPH_FEATURE_CRUSH_TUNABLES (1ULL<<18)
+#define CEPH_FEATURE_CHUNKY_SCRUB (1ULL<<19)
+#define CEPH_FEATURE_MON_NULLROUTE (1ULL<<20)
+#define CEPH_FEATURE_MON_GV (1ULL<<21)
+#define CEPH_FEATURE_BACKFILL_RESERVATION (1ULL<<22)
+#define CEPH_FEATURE_MSG_AUTH (1ULL<<23)
+#define CEPH_FEATURE_RECOVERY_RESERVATION (1ULL<<24)
+#define CEPH_FEATURE_CRUSH_TUNABLES2 (1ULL<<25)
+#define CEPH_FEATURE_CREATEPOOLID (1ULL<<26)
+#define CEPH_FEATURE_REPLY_CREATE_INODE (1ULL<<27)
+#define CEPH_FEATURE_OSD_HBMSGS (1ULL<<28)
+#define CEPH_FEATURE_MDSENC (1ULL<<29)
+#define CEPH_FEATURE_OSDHASHPSPOOL (1ULL<<30)
+#define CEPH_FEATURE_MON_SINGLE_PAXOS (1ULL<<31)
+#define CEPH_FEATURE_OSD_SNAPMAPPER (1ULL<<32)
+#define CEPH_FEATURE_MON_SCRUB (1ULL<<33)
+#define CEPH_FEATURE_OSD_PACKED_RECOVERY (1ULL<<34)
+#define CEPH_FEATURE_OSD_CACHEPOOL (1ULL<<35)
+#define CEPH_FEATURE_CRUSH_V2 (1ULL<<36) /* new indep; SET_* steps */
+#define CEPH_FEATURE_EXPORT_PEER (1ULL<<37)
+#define CEPH_FEATURE_OSD_ERASURE_CODES (1ULL<<38)
+#define CEPH_FEATURE_OSD_TMAP2OMAP (1ULL<<38) /* overlap with EC */
+/* The process supports new-style OSDMap encoding. Monitors also use
+ this bit to determine if peers support NAK messages. */
+#define CEPH_FEATURE_OSDMAP_ENC (1ULL<<39)
+#define CEPH_FEATURE_MDS_INLINE_DATA (1ULL<<40)
+#define CEPH_FEATURE_CRUSH_TUNABLES3 (1ULL<<41)
+#define CEPH_FEATURE_OSD_PRIMARY_AFFINITY (1ULL<<41) /* overlap w/ tunables3 */
+#define CEPH_FEATURE_MSGR_KEEPALIVE2 (1ULL<<42)
+#define CEPH_FEATURE_OSD_POOLRESEND (1ULL<<43)
+#define CEPH_FEATURE_ERASURE_CODE_PLUGINS_V2 (1ULL<<44)
+#define CEPH_FEATURE_OSD_SET_ALLOC_HINT (1ULL<<45)
+#define CEPH_FEATURE_OSD_FADVISE_FLAGS (1ULL<<46)
+#define CEPH_FEATURE_OSD_REPOP (1ULL<<46) /* overlap with fadvise */
+#define CEPH_FEATURE_OSD_OBJECT_DIGEST (1ULL<<46) /* overlap with fadvise */
+#define CEPH_FEATURE_OSD_TRANSACTION_MAY_LAYOUT (1ULL<<46) /* overlap w/ fadvise */
+#define CEPH_FEATURE_MDS_QUOTA (1ULL<<47)
+#define CEPH_FEATURE_CRUSH_V4 (1ULL<<48) /* straw2 buckets */
+#define CEPH_FEATURE_OSD_MIN_SIZE_RECOVERY (1ULL<<49)
+// duplicated since it was introduced at the same time as MIN_SIZE_RECOVERY
+#define CEPH_FEATURE_OSD_PROXY_FEATURES (1ULL<<49) /* overlap w/ above */
+
+/*
+ * The introduction of CEPH_FEATURE_OSD_SNAPMAPPER caused the feature
+ * vector to evaluate to 64 bit ~0. To cope, we designate 1ULL << 63
+ * to mean 33 bit ~0, and introduce a helper below to do the
+ * translation.
+ *
+ * This was introduced by ceph.git commit
+ * 9ea02b84104045c2ffd7e7f4e7af512953855ecd v0.58-657-g9ea02b8
+ * and fixed by ceph.git commit
+ * 4255b5c2fb54ae40c53284b3ab700fdfc7e61748 v0.65-263-g4255b5c
+ */
+#define CEPH_FEATURE_RESERVED (1ULL<<63)
+
+static inline u64 ceph_sanitize_features(u64 features)
+{
+ if (features & CEPH_FEATURE_RESERVED) {
+ /* everything through OSD_SNAPMAPPER */
+ return 0x1ffffffffull;
+ } else {
+ return features;
+ }
+}
+
+/*
+ * Features supported.
+ */
+#define CEPH_FEATURES_SUPPORTED_DEFAULT \
+ (CEPH_FEATURE_NOSRCADDR | \
+ CEPH_FEATURE_RECONNECT_SEQ | \
+ CEPH_FEATURE_PGID64 | \
+ CEPH_FEATURE_PGPOOL3 | \
+ CEPH_FEATURE_OSDENC | \
+ CEPH_FEATURE_CRUSH_TUNABLES | \
+ CEPH_FEATURE_MSG_AUTH | \
+ CEPH_FEATURE_CRUSH_TUNABLES2 | \
+ CEPH_FEATURE_REPLY_CREATE_INODE | \
+ CEPH_FEATURE_OSDHASHPSPOOL | \
+ CEPH_FEATURE_OSD_CACHEPOOL | \
+ CEPH_FEATURE_CRUSH_V2 | \
+ CEPH_FEATURE_EXPORT_PEER | \
+ CEPH_FEATURE_OSDMAP_ENC | \
+ CEPH_FEATURE_CRUSH_TUNABLES3 | \
+ CEPH_FEATURE_OSD_PRIMARY_AFFINITY | \
+ CEPH_FEATURE_CRUSH_V4)
+
+#define CEPH_FEATURES_REQUIRED_DEFAULT \
+ (CEPH_FEATURE_NOSRCADDR | \
+ CEPH_FEATURE_RECONNECT_SEQ | \
+ CEPH_FEATURE_PGID64 | \
+ CEPH_FEATURE_PGPOOL3 | \
+ CEPH_FEATURE_OSDENC)
+
+#endif