+ struct rte_ether_hdr *eth_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ struct rte_vxlan_gpe_hdr *vxlan_gpe_hdr;
+ uint8_t vxlan_gpe_len = sizeof(*vxlan_gpe_hdr);
+
+ /* Check udp destination port. */
+ if (udp_hdr->dst_port != _htons(vxlan_gpe_udp_port))
+ return;
+
+ vxlan_gpe_hdr = (struct rte_vxlan_gpe_hdr *)((char *)udp_hdr +
+ sizeof(struct rte_udp_hdr));
+
+ if (!vxlan_gpe_hdr->proto || vxlan_gpe_hdr->proto ==
+ RTE_VXLAN_GPE_TYPE_IPV4) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)vxlan_gpe_hdr +
+ vxlan_gpe_len);
+
+ parse_ipv4(ipv4_hdr, info);
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV4);
+ info->l2_len = 0;
+
+ } else if (vxlan_gpe_hdr->proto == RTE_VXLAN_GPE_TYPE_IPV6) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)vxlan_gpe_hdr +
+ vxlan_gpe_len);
+
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV6);
+ parse_ipv6(ipv6_hdr, info);
+ info->l2_len = 0;
+
+ } else if (vxlan_gpe_hdr->proto == RTE_VXLAN_GPE_TYPE_ETH) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ eth_hdr = (struct rte_ether_hdr *)((char *)vxlan_gpe_hdr +
+ vxlan_gpe_len);
+
+ parse_ethernet(eth_hdr, info);
+ } else
+ return;
+
+ info->l2_len += RTE_ETHER_VXLAN_GPE_HLEN;
+}
+
+/* Parse a gre header */
+static void
+parse_gre(struct simple_gre_hdr *gre_hdr, struct testpmd_offload_info *info)
+{
+ struct rte_ether_hdr *eth_hdr;
+ struct rte_ipv4_hdr *ipv4_hdr;
+ struct rte_ipv6_hdr *ipv6_hdr;
+ uint8_t gre_len = 0;
+
+ gre_len += sizeof(struct simple_gre_hdr);
+
+ if (gre_hdr->flags & _htons(GRE_KEY_PRESENT))
+ gre_len += GRE_EXT_LEN;
+ if (gre_hdr->flags & _htons(GRE_SEQUENCE_PRESENT))
+ gre_len += GRE_EXT_LEN;
+ if (gre_hdr->flags & _htons(GRE_CHECKSUM_PRESENT))
+ gre_len += GRE_EXT_LEN;
+
+ if (gre_hdr->proto == _htons(RTE_ETHER_TYPE_IPV4)) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ ipv4_hdr = (struct rte_ipv4_hdr *)((char *)gre_hdr + gre_len);
+
+ parse_ipv4(ipv4_hdr, info);
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV4);
+ info->l2_len = 0;
+
+ } else if (gre_hdr->proto == _htons(RTE_ETHER_TYPE_IPV6)) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ ipv6_hdr = (struct rte_ipv6_hdr *)((char *)gre_hdr + gre_len);
+
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV6);
+ parse_ipv6(ipv6_hdr, info);
+ info->l2_len = 0;
+
+ } else if (gre_hdr->proto == _htons(RTE_ETHER_TYPE_TEB)) {
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+ info->outer_l4_proto = info->l4_proto;
+
+ eth_hdr = (struct rte_ether_hdr *)((char *)gre_hdr + gre_len);
+
+ parse_ethernet(eth_hdr, info);
+ } else
+ return;
+
+ info->l2_len += gre_len;
+}
+
+
+/* Parse an encapsulated ip or ipv6 header */
+static void
+parse_encap_ip(void *encap_ip, struct testpmd_offload_info *info)
+{
+ struct rte_ipv4_hdr *ipv4_hdr = encap_ip;
+ struct rte_ipv6_hdr *ipv6_hdr = encap_ip;
+ uint8_t ip_version;
+
+ ip_version = (ipv4_hdr->version_ihl & 0xf0) >> 4;
+
+ if (ip_version != 4 && ip_version != 6)
+ return;
+
+ info->is_tunnel = 1;
+ info->outer_ethertype = info->ethertype;
+ info->outer_l2_len = info->l2_len;
+ info->outer_l3_len = info->l3_len;
+
+ if (ip_version == 4) {
+ parse_ipv4(ipv4_hdr, info);
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV4);
+ } else {
+ parse_ipv6(ipv6_hdr, info);
+ info->ethertype = _htons(RTE_ETHER_TYPE_IPV6);