#define FLOW_ITEM_MASK(_x) (UINT64_C(1) << _x)
#define FLOW_ACTION_MASK(_x) (UINT64_C(1) << _x)
#define FLOW_ATTR_MASK(_x) (UINT64_C(1) << _x)
#define FLOW_ITEM_MASK(_x) (UINT64_C(1) << _x)
#define FLOW_ACTION_MASK(_x) (UINT64_C(1) << _x)
#define FLOW_ATTR_MASK(_x) (UINT64_C(1) << _x)