+
+int
+generate_packet_burst_proto(struct rte_mempool *mp,
+ struct rte_mbuf **pkts_burst,
+ struct ether_hdr *eth_hdr, uint8_t vlan_enabled, void *ip_hdr,
+ uint8_t ipv4, uint8_t proto, void *proto_hdr,
+ int nb_pkt_per_burst, uint8_t pkt_len, uint8_t nb_pkt_segs)
+{
+ int i, nb_pkt = 0;
+ size_t eth_hdr_size;
+
+ struct rte_mbuf *pkt_seg;
+ struct rte_mbuf *pkt;
+
+ for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
+ pkt = rte_pktmbuf_alloc(mp);
+ if (pkt == NULL) {
+nomore_mbuf:
+ if (nb_pkt == 0)
+ return -1;
+ break;
+ }
+
+ pkt->data_len = pkt_len;
+ pkt_seg = pkt;
+ for (i = 1; i < nb_pkt_segs; i++) {
+ pkt_seg->next = rte_pktmbuf_alloc(mp);
+ if (pkt_seg->next == NULL) {
+ pkt->nb_segs = i;
+ rte_pktmbuf_free(pkt);
+ goto nomore_mbuf;
+ }
+ pkt_seg = pkt_seg->next;
+ pkt_seg->data_len = pkt_len;
+ }
+ pkt_seg->next = NULL; /* Last segment of packet. */
+
+ /*
+ * Copy headers in first packet segment(s).
+ */
+ if (vlan_enabled)
+ eth_hdr_size = sizeof(struct ether_hdr) +
+ sizeof(struct vlan_hdr);
+ else
+ eth_hdr_size = sizeof(struct ether_hdr);
+
+ copy_buf_to_pkt(eth_hdr, eth_hdr_size, pkt, 0);
+
+ if (ipv4) {
+ copy_buf_to_pkt(ip_hdr, sizeof(struct ipv4_hdr), pkt,
+ eth_hdr_size);
+ switch (proto) {
+ case IPPROTO_UDP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct udp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv4_hdr));
+ break;
+ case IPPROTO_TCP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct tcp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv4_hdr));
+ break;
+ case IPPROTO_SCTP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct sctp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv4_hdr));
+ break;
+ default:
+ break;
+ }
+ } else {
+ copy_buf_to_pkt(ip_hdr, sizeof(struct ipv6_hdr), pkt,
+ eth_hdr_size);
+ switch (proto) {
+ case IPPROTO_UDP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct udp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv6_hdr));
+ break;
+ case IPPROTO_TCP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct tcp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv6_hdr));
+ break;
+ case IPPROTO_SCTP:
+ copy_buf_to_pkt(proto_hdr,
+ sizeof(struct sctp_hdr), pkt,
+ eth_hdr_size + sizeof(struct ipv6_hdr));
+ break;
+ default:
+ break;
+ }
+ }
+
+ /*
+ * Complete first mbuf of packet and append it to the
+ * burst of packets to be transmitted.
+ */
+ pkt->nb_segs = nb_pkt_segs;
+ pkt->pkt_len = pkt_len;
+ pkt->l2_len = eth_hdr_size;
+
+ if (ipv4) {
+ pkt->vlan_tci = ETHER_TYPE_IPv4;
+ pkt->l3_len = sizeof(struct ipv4_hdr);
+ } else {
+ pkt->vlan_tci = ETHER_TYPE_IPv6;
+ pkt->l3_len = sizeof(struct ipv6_hdr);
+ }
+
+ pkts_burst[nb_pkt] = pkt;
+ }
+
+ return nb_pkt;
+}