- pkt = rte_mbuf_raw_alloc(mbp);
- if (!pkt)
- break;
-
- pkt->data_len = pkt_size;
- pkt->next = NULL;
-
- /* Initialize Ethernet header. */
- eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
- rte_ether_addr_copy(&cfg_ether_dst, ð_hdr->d_addr);
- rte_ether_addr_copy(&cfg_ether_src, ð_hdr->s_addr);
- eth_hdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPv4);
-
- /* Initialize IP header. */
- ip_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
- memset(ip_hdr, 0, sizeof(*ip_hdr));
- ip_hdr->version_ihl = IP_VHL_DEF;
- ip_hdr->type_of_service = 0;
- ip_hdr->fragment_offset = 0;
- ip_hdr->time_to_live = IP_DEFTTL;
- ip_hdr->next_proto_id = IPPROTO_UDP;
- ip_hdr->packet_id = 0;
- ip_hdr->src_addr = rte_cpu_to_be_32(cfg_ip_src);
- ip_hdr->dst_addr = rte_cpu_to_be_32(cfg_ip_dst +
- next_flow);
- ip_hdr->total_length = RTE_CPU_TO_BE_16(pkt_size -
- sizeof(*eth_hdr));
- ip_hdr->hdr_checksum = ip_sum((unaligned_uint16_t *)ip_hdr,
- sizeof(*ip_hdr));
-
- /* Initialize UDP header. */
- udp_hdr = (struct rte_udp_hdr *)(ip_hdr + 1);
- udp_hdr->src_port = rte_cpu_to_be_16(cfg_udp_src);
- udp_hdr->dst_port = rte_cpu_to_be_16(cfg_udp_dst);
- udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
- udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_size -
- sizeof(*eth_hdr) -
- sizeof(*ip_hdr));
- pkt->nb_segs = 1;
- pkt->pkt_len = pkt_size;
- pkt->ol_flags = ol_flags;
- pkt->vlan_tci = vlan_tci;
- pkt->vlan_tci_outer = vlan_tci_outer;
- pkt->l2_len = sizeof(struct rte_ether_hdr);
- pkt->l3_len = sizeof(struct rte_ipv4_hdr);
- pkts_burst[nb_pkt] = pkt;
+ if (!nb_pkt || !nb_clones) {
+ nb_clones = nb_pkt_flowgen_clones;
+ /* Logic limitation */
+ if (nb_clones > nb_pkt_per_burst)
+ nb_clones = nb_pkt_per_burst;
+
+ pkt = rte_mbuf_raw_alloc(mbp);
+ if (!pkt)
+ break;
+
+ pkt->data_len = pkt_size;
+ pkt->next = NULL;
+
+ /* Initialize Ethernet header. */
+ eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
+ rte_ether_addr_copy(&cfg_ether_dst, ð_hdr->d_addr);
+ rte_ether_addr_copy(&cfg_ether_src, ð_hdr->s_addr);
+ eth_hdr->ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
+
+ /* Initialize IP header. */
+ ip_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
+ memset(ip_hdr, 0, sizeof(*ip_hdr));
+ ip_hdr->version_ihl = RTE_IPV4_VHL_DEF;
+ ip_hdr->type_of_service = 0;
+ ip_hdr->fragment_offset = 0;
+ ip_hdr->time_to_live = IP_DEFTTL;
+ ip_hdr->next_proto_id = IPPROTO_UDP;
+ ip_hdr->packet_id = 0;
+ ip_hdr->src_addr = rte_cpu_to_be_32(cfg_ip_src);
+ ip_hdr->dst_addr = rte_cpu_to_be_32(cfg_ip_dst +
+ next_flow);
+ ip_hdr->total_length = RTE_CPU_TO_BE_16(pkt_size -
+ sizeof(*eth_hdr));
+ ip_hdr->hdr_checksum = ip_sum((const alias_int16_t *)ip_hdr,
+ sizeof(*ip_hdr));
+
+ /* Initialize UDP header. */
+ udp_hdr = (struct rte_udp_hdr *)(ip_hdr + 1);
+ udp_hdr->src_port = rte_cpu_to_be_16(cfg_udp_src);
+ udp_hdr->dst_port = rte_cpu_to_be_16(cfg_udp_dst);
+ udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
+ udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_size -
+ sizeof(*eth_hdr) -
+ sizeof(*ip_hdr));
+ pkt->nb_segs = 1;
+ pkt->pkt_len = pkt_size;
+ pkt->ol_flags &= EXT_ATTACHED_MBUF;
+ pkt->ol_flags |= ol_flags;
+ pkt->vlan_tci = vlan_tci;
+ pkt->vlan_tci_outer = vlan_tci_outer;
+ pkt->l2_len = sizeof(struct rte_ether_hdr);
+ pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ } else {
+ nb_clones--;
+ rte_mbuf_refcnt_update(pkt, 1);
+ }
+ pkts_burst[nb_pkt] = pkt;