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Diffstat (limited to 'src/include/rbd/features.h')
| -rw-r--r-- | src/include/rbd/features.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/include/rbd/features.h b/src/include/rbd/features.h new file mode 100644 index 000000000..31c73b38f --- /dev/null +++ b/src/include/rbd/features.h @@ -0,0 +1,121 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#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_FEATURE_OPERATIONS (1ULL<<8) +#define RBD_FEATURE_MIGRATING (1ULL<<9) +#define RBD_FEATURE_NON_PRIMARY (1ULL<<10) +#define RBD_FEATURE_DIRTY_CACHE (1ULL<<11) + +#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" +#define RBD_FEATURE_NAME_OPERATIONS "operations" +#define RBD_FEATURE_NAME_MIGRATING "migrating" +#define RBD_FEATURE_NAME_NON_PRIMARY "non-primary" +#define RBD_FEATURE_NAME_DIRTY_CACHE "dirty-cache" + +/// 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 | \ + RBD_FEATURE_DIRTY_CACHE) + +/// 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 | \ + RBD_FEATURE_OPERATIONS | \ + RBD_FEATURE_MIGRATING | \ + RBD_FEATURE_NON_PRIMARY) + +#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 | \ + RBD_FEATURE_OPERATIONS | \ + RBD_FEATURE_MIGRATING | \ + RBD_FEATURE_NON_PRIMARY | \ + RBD_FEATURE_DIRTY_CACHE) + +/// 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 | \ + RBD_FEATURE_NON_PRIMARY | \ + RBD_FEATURE_DIRTY_CACHE) + +#define RBD_FEATURES_MUTABLE_INTERNAL (RBD_FEATURE_NON_PRIMARY | \ + RBD_FEATURE_DIRTY_CACHE) + +/// 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 | \ + RBD_FEATURE_DIRTY_CACHE) + +/// features that will be implicitly enabled +#define RBD_FEATURES_IMPLICIT_ENABLE (RBD_FEATURE_STRIPINGV2 | \ + RBD_FEATURE_DATA_POOL | \ + RBD_FEATURE_FAST_DIFF | \ + RBD_FEATURE_OPERATIONS | \ + RBD_FEATURE_MIGRATING | \ + RBD_FEATURE_NON_PRIMARY | \ + RBD_FEATURE_DIRTY_CACHE) + +/// features that cannot be controlled by the user +#define RBD_FEATURES_INTERNAL (RBD_FEATURE_OPERATIONS | \ + RBD_FEATURE_MIGRATING) + +#define RBD_OPERATION_FEATURE_CLONE_PARENT (1ULL<<0) +#define RBD_OPERATION_FEATURE_CLONE_CHILD (1ULL<<1) +#define RBD_OPERATION_FEATURE_GROUP (1ULL<<2) +#define RBD_OPERATION_FEATURE_SNAP_TRASH (1ULL<<3) + +#define RBD_OPERATION_FEATURE_NAME_CLONE_PARENT "clone-parent" +#define RBD_OPERATION_FEATURE_NAME_CLONE_CHILD "clone-child" +#define RBD_OPERATION_FEATURE_NAME_GROUP "group" +#define RBD_OPERATION_FEATURE_NAME_SNAP_TRASH "snap-trash" + +/// all valid operation features +#define RBD_OPERATION_FEATURES_ALL (RBD_OPERATION_FEATURE_CLONE_PARENT | \ + RBD_OPERATION_FEATURE_CLONE_CHILD | \ + RBD_OPERATION_FEATURE_GROUP | \ + RBD_OPERATION_FEATURE_SNAP_TRASH) + +#endif |