-#define MBUF_SIZE (2048 + DIGEST_BYTE_LENGTH_SHA512 + \
- sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+#define MBUF_DATAPAYLOAD_SIZE (2048 + DIGEST_BYTE_LENGTH_SHA512)
+#define MBUF_SIZE (sizeof(struct rte_mbuf) + \
+ RTE_PKTMBUF_HEADROOM + MBUF_DATAPAYLOAD_SIZE)