ceph/src/include/rbd/features.h

   1 #ifndef CEPH_RBD_FEATURES_H
   2 #define CEPH_RBD_FEATURES_H
   3
   4 #define RBD_FEATURE_LAYERING            (1ULL<<0)
   5 #define RBD_FEATURE_STRIPINGV2          (1ULL<<1)
   6 #define RBD_FEATURE_EXCLUSIVE_LOCK      (1ULL<<2)
   7 #define RBD_FEATURE_OBJECT_MAP          (1ULL<<3)
   8 #define RBD_FEATURE_FAST_DIFF           (1ULL<<4)
   9 #define RBD_FEATURE_DEEP_FLATTEN        (1ULL<<5)
  10 #define RBD_FEATURE_JOURNALING          (1ULL<<6)
  11 #define RBD_FEATURE_DATA_POOL           (1ULL<<7)
  12 #define RBD_FEATURE_OPERATIONS          (1ULL<<8)
  13 #define RBD_FEATURE_MIGRATING           (1ULL<<9)
  14
  15 #define RBD_FEATURES_DEFAULT             (RBD_FEATURE_LAYERING | \
  16                                          RBD_FEATURE_EXCLUSIVE_LOCK | \
  17                                          RBD_FEATURE_OBJECT_MAP | \
  18                                          RBD_FEATURE_FAST_DIFF | \
  19                                          RBD_FEATURE_DEEP_FLATTEN)
  20
  21 #define RBD_FEATURE_NAME_LAYERING        "layering"
  22 #define RBD_FEATURE_NAME_STRIPINGV2      "striping"
  23 #define RBD_FEATURE_NAME_EXCLUSIVE_LOCK  "exclusive-lock"
  24 #define RBD_FEATURE_NAME_OBJECT_MAP      "object-map"
  25 #define RBD_FEATURE_NAME_FAST_DIFF       "fast-diff"
  26 #define RBD_FEATURE_NAME_DEEP_FLATTEN    "deep-flatten"
  27 #define RBD_FEATURE_NAME_JOURNALING      "journaling"
  28 #define RBD_FEATURE_NAME_DATA_POOL       "data-pool"
  29 #define RBD_FEATURE_NAME_OPERATIONS      "operations"
  30 #define RBD_FEATURE_NAME_MIGRATING       "migrating"
  31
  32 /// features that make an image inaccessible for read or write by
  33 /// clients that don't understand them
  34 #define RBD_FEATURES_INCOMPATIBLE       (RBD_FEATURE_LAYERING       | \
  35                                          RBD_FEATURE_STRIPINGV2     | \
  36                                          RBD_FEATURE_DATA_POOL)
  37
  38 /// features that make an image unwritable by clients that don't understand them
  39 #define RBD_FEATURES_RW_INCOMPATIBLE    (RBD_FEATURES_INCOMPATIBLE  | \
  40                                          RBD_FEATURE_EXCLUSIVE_LOCK | \
  41                                          RBD_FEATURE_OBJECT_MAP     | \
  42                                          RBD_FEATURE_FAST_DIFF      | \
  43                                          RBD_FEATURE_DEEP_FLATTEN   | \
  44                                          RBD_FEATURE_JOURNALING     | \
  45                                          RBD_FEATURE_OPERATIONS     | \
  46                                          RBD_FEATURE_MIGRATING)
  47
  48 #define RBD_FEATURES_ALL                (RBD_FEATURE_LAYERING       | \
  49                                          RBD_FEATURE_STRIPINGV2     | \
  50                                          RBD_FEATURE_EXCLUSIVE_LOCK | \
  51                                          RBD_FEATURE_OBJECT_MAP     | \
  52                                          RBD_FEATURE_FAST_DIFF      | \
  53                                          RBD_FEATURE_DEEP_FLATTEN   | \
  54                                          RBD_FEATURE_JOURNALING     | \
  55                                          RBD_FEATURE_DATA_POOL      | \
  56                                          RBD_FEATURE_OPERATIONS     | \
  57                                          RBD_FEATURE_MIGRATING)
  58
  59 /// features that may be dynamically enabled or disabled
  60 #define RBD_FEATURES_MUTABLE            (RBD_FEATURE_EXCLUSIVE_LOCK | \
  61                                          RBD_FEATURE_OBJECT_MAP     | \
  62                                          RBD_FEATURE_FAST_DIFF      | \
  63                                          RBD_FEATURE_JOURNALING)
  64
  65 /// features that may be dynamically disabled
  66 #define RBD_FEATURES_DISABLE_ONLY       (RBD_FEATURE_DEEP_FLATTEN)
  67
  68 /// features that only work when used with a single client
  69 /// using the image for writes
  70 #define RBD_FEATURES_SINGLE_CLIENT (RBD_FEATURE_EXCLUSIVE_LOCK | \
  71                                     RBD_FEATURE_OBJECT_MAP     | \
  72                                     RBD_FEATURE_FAST_DIFF      | \
  73                                     RBD_FEATURE_JOURNALING)
  74
  75 /// features that will be implicitly enabled
  76 #define RBD_FEATURES_IMPLICIT_ENABLE  (RBD_FEATURE_STRIPINGV2 | \
  77                                        RBD_FEATURE_DATA_POOL  | \
  78                                        RBD_FEATURE_FAST_DIFF  | \
  79                                        RBD_FEATURE_OPERATIONS | \
  80                                        RBD_FEATURE_MIGRATING)
  81
  82 /// features that cannot be controlled by the user
  83 #define RBD_FEATURES_INTERNAL         (RBD_FEATURE_OPERATIONS | \
  84                                        RBD_FEATURE_MIGRATING)
  85
  86 #define RBD_OPERATION_FEATURE_CLONE_PARENT      (1ULL<<0)
  87 #define RBD_OPERATION_FEATURE_CLONE_CHILD       (1ULL<<1)
  88 #define RBD_OPERATION_FEATURE_GROUP             (1ULL<<2)
  89 #define RBD_OPERATION_FEATURE_SNAP_TRASH        (1ULL<<3)
  90
  91 #define RBD_OPERATION_FEATURE_NAME_CLONE_PARENT "clone-parent"
  92 #define RBD_OPERATION_FEATURE_NAME_CLONE_CHILD  "clone-child"
  93 #define RBD_OPERATION_FEATURE_NAME_GROUP        "group"
  94 #define RBD_OPERATION_FEATURE_NAME_SNAP_TRASH   "snap-trash"
  95
  96 /// all valid operation features
  97 #define RBD_OPERATION_FEATURES_ALL (RBD_OPERATION_FEATURE_CLONE_PARENT | \
  98                                     RBD_OPERATION_FEATURE_CLONE_CHILD  | \
  99                                     RBD_OPERATION_FEATURE_GROUP        | \
 100                                     RBD_OPERATION_FEATURE_SNAP_TRASH)
 101
 102 #endif