+
+ /** Compute/verify inner packet IPv4 header checksum in tunnel mode
+ *
+ * * 1: For outbound, compute inner packet IPv4 header checksum
+ * before tunnel encapsulation and for inbound, verify after
+ * tunnel decapsulation.
+ * * 0: Inner packet IP header checksum is not computed/verified.
+ *
+ * The checksum verification status would be set in mbuf using
+ * RTE_MBUF_F_RX_IP_CKSUM_xxx flags.
+ *
+ * Inner IP checksum computation can also be enabled(per operation)
+ * by setting the flag RTE_MBUF_F_TX_IP_CKSUM in mbuf.
+ */
+ uint32_t ip_csum_enable : 1;
+
+ /** Compute/verify inner packet L4 checksum in tunnel mode
+ *
+ * * 1: For outbound, compute inner packet L4 checksum before
+ * tunnel encapsulation and for inbound, verify after
+ * tunnel decapsulation.
+ * * 0: Inner packet L4 checksum is not computed/verified.
+ *
+ * The checksum verification status would be set in mbuf using
+ * RTE_MBUF_F_RX_L4_CKSUM_xxx flags.
+ *
+ * Inner L4 checksum computation can also be enabled(per operation)
+ * by setting the flags RTE_MBUF_F_TX_TCP_CKSUM or RTE_MBUF_F_TX_SCTP_CKSUM or
+ * RTE_MBUF_F_TX_UDP_CKSUM or RTE_MBUF_F_TX_L4_MASK in mbuf.
+ */
+ uint32_t l4_csum_enable : 1;
+
+ /** Reserved bit fields for future extension
+ *
+ * User should ensure reserved_opts is cleared as it may change in
+ * subsequent releases to support new options.
+ *
+ * Note: Reduce number of bits in reserved_opts for every new option.
+ */
+ uint32_t reserved_opts : 18;