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43 #include <sys/queue.h>
46 #include <rte_common.h>
47 #include <rte_byteorder.h>
49 #include <rte_debug.h>
50 #include <rte_cycles.h>
51 #include <rte_memory.h>
52 #include <rte_memcpy.h>
53 #include <rte_memzone.h>
54 #include <rte_launch.h>
55 #include <rte_tailq.h>
57 #include <rte_per_lcore.h>
58 #include <rte_lcore.h>
59 #include <rte_atomic.h>
60 #include <rte_branch_prediction.h>
62 #include <rte_memory.h>
63 #include <rte_mempool.h>
65 #include <rte_interrupts.h>
67 #include <rte_ether.h>
68 #include <rte_ethdev.h>
70 #include <rte_string_fns.h>
75 * Forwarding of packets in MAC mode.
76 * Change the source and the destination Ethernet addressed of packets
77 * before forwarding them.
80 pkt_burst_mac_forward(struct fwd_stream *fs)
82 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
85 struct ether_hdr *eth_hdr;
89 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
95 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
96 start_tsc = rte_rdtsc();
100 * Receive a burst of packets and forward them.
102 nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
104 if (unlikely(nb_rx == 0))
107 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
108 fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
110 fs->rx_packets += nb_rx;
111 txp = &ports[fs->tx_port];
112 for (i = 0; i < nb_rx; i++) {
114 eth_hdr = (struct ether_hdr *) mb->pkt.data;
115 ether_addr_copy(&peer_eth_addrs[fs->peer_addr],
117 ether_addr_copy(&ports[fs->tx_port].eth_addr,
119 mb->ol_flags = txp->tx_ol_flags;
120 mb->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
121 mb->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);
122 mb->pkt.vlan_macip.f.vlan_tci = txp->tx_vlan_id;
124 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
125 fs->tx_packets += nb_tx;
126 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
127 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
129 if (unlikely(nb_tx < nb_rx)) {
130 fs->fwd_dropped += (nb_rx - nb_tx);
132 rte_pktmbuf_free(pkts_burst[nb_tx]);
133 } while (++nb_tx < nb_rx);
135 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
136 end_tsc = rte_rdtsc();
137 core_cycles = (end_tsc - start_tsc);
138 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
142 struct fwd_engine mac_fwd_engine = {
143 .fwd_mode_name = "mac",
144 .port_fwd_begin = NULL,
145 .port_fwd_end = NULL,
146 .packet_fwd = pkt_burst_mac_forward,