+/**@{
+ * Macros to allow accessing metadata stored in the mbuf headroom
+ * just beyond the end of the mbuf data structure returned by a port
+ */
+#define RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset) \
+ (&((uint8_t *)(mbuf))[offset])
+#define RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset) \
+ ((uint16_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset) \
+ ((uint32_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset) \
+ ((uint64_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+
+#define RTE_MBUF_METADATA_UINT8(mbuf, offset) \
+ (*RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT16(mbuf, offset) \
+ (*RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT32(mbuf, offset) \
+ (*RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT64(mbuf, offset) \
+ (*RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset))
+/**@}*/
+