initial code repo

[stor4nfv.git] / src / ceph / src / include / rbd / features.h

diff --git a/src/ceph/src/include/rbd/features.h b/src/ceph/src/include/rbd/features.h
new file mode 100644 (file)
index 0000000..efdcf0e
--- /dev/null
+++ b/src/ceph/src/include/rbd/features.h
@@ -0,0 +1,67 @@
+#ifndef CEPH_RBD_FEATURES_H
+#define CEPH_RBD_FEATURES_H
+
+#define RBD_FEATURE_LAYERING           (1ULL<<0)
+#define RBD_FEATURE_STRIPINGV2         (1ULL<<1)
+#define RBD_FEATURE_EXCLUSIVE_LOCK     (1ULL<<2)
+#define RBD_FEATURE_OBJECT_MAP         (1ULL<<3)
+#define RBD_FEATURE_FAST_DIFF           (1ULL<<4)
+#define RBD_FEATURE_DEEP_FLATTEN        (1ULL<<5)
+#define RBD_FEATURE_JOURNALING          (1ULL<<6)
+#define RBD_FEATURE_DATA_POOL           (1ULL<<7)
+
+#define RBD_FEATURES_DEFAULT             (RBD_FEATURE_LAYERING | \
+                                         RBD_FEATURE_EXCLUSIVE_LOCK | \
+                                         RBD_FEATURE_OBJECT_MAP | \
+                                         RBD_FEATURE_FAST_DIFF | \
+                                         RBD_FEATURE_DEEP_FLATTEN)
+
+#define RBD_FEATURE_NAME_LAYERING        "layering"
+#define RBD_FEATURE_NAME_STRIPINGV2      "striping"
+#define RBD_FEATURE_NAME_EXCLUSIVE_LOCK  "exclusive-lock"
+#define RBD_FEATURE_NAME_OBJECT_MAP      "object-map"
+#define RBD_FEATURE_NAME_FAST_DIFF       "fast-diff"
+#define RBD_FEATURE_NAME_DEEP_FLATTEN    "deep-flatten"
+#define RBD_FEATURE_NAME_JOURNALING      "journaling"
+#define RBD_FEATURE_NAME_DATA_POOL       "data-pool"
+
+/// features that make an image inaccessible for read or write by
+/// clients that don't understand them
+#define RBD_FEATURES_INCOMPATIBLE      (RBD_FEATURE_LAYERING       | \
+                                        RBD_FEATURE_STRIPINGV2     | \
+                                         RBD_FEATURE_DATA_POOL)
+
+/// features that make an image unwritable by clients that don't understand them
+#define RBD_FEATURES_RW_INCOMPATIBLE   (RBD_FEATURES_INCOMPATIBLE  | \
+                                        RBD_FEATURE_EXCLUSIVE_LOCK | \
+                                        RBD_FEATURE_OBJECT_MAP     | \
+                                         RBD_FEATURE_FAST_DIFF      | \
+                                         RBD_FEATURE_DEEP_FLATTEN   | \
+                                         RBD_FEATURE_JOURNALING)
+
+#define RBD_FEATURES_ALL               (RBD_FEATURE_LAYERING       | \
+                                        RBD_FEATURE_STRIPINGV2     | \
+                                        RBD_FEATURE_EXCLUSIVE_LOCK | \
+                                         RBD_FEATURE_OBJECT_MAP     | \
+                                         RBD_FEATURE_FAST_DIFF      | \
+                                         RBD_FEATURE_DEEP_FLATTEN   | \
+                                         RBD_FEATURE_JOURNALING     | \
+                                         RBD_FEATURE_DATA_POOL)
+
+/// features that may be dynamically enabled or disabled
+#define RBD_FEATURES_MUTABLE            (RBD_FEATURE_EXCLUSIVE_LOCK | \
+                                         RBD_FEATURE_OBJECT_MAP     | \
+                                         RBD_FEATURE_FAST_DIFF      | \
+                                         RBD_FEATURE_JOURNALING)
+
+/// features that may be dynamically disabled
+#define RBD_FEATURES_DISABLE_ONLY       (RBD_FEATURE_DEEP_FLATTEN)
+
+/// features that only work when used with a single client
+/// using the image for writes
+#define RBD_FEATURES_SINGLE_CLIENT (RBD_FEATURE_EXCLUSIVE_LOCK | \
+                                    RBD_FEATURE_OBJECT_MAP     | \
+                                    RBD_FEATURE_FAST_DIFF      | \
+                                    RBD_FEATURE_JOURNALING)
+
+#endif