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42 #include <sys/queue.h>
45 #include <rte_common.h>
46 #include <rte_byteorder.h>
48 #include <rte_debug.h>
49 #include <rte_cycles.h>
50 #include <rte_memory.h>
51 #include <rte_memcpy.h>
52 #include <rte_memzone.h>
53 #include <rte_launch.h>
54 #include <rte_tailq.h>
56 #include <rte_per_lcore.h>
57 #include <rte_lcore.h>
58 #include <rte_atomic.h>
59 #include <rte_branch_prediction.h>
61 #include <rte_memory.h>
62 #include <rte_mempool.h>
64 #include <rte_interrupts.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
69 #include <rte_string_fns.h>
74 * MAC swap forwarding mode: Swap the source and the destination Ethernet
75 * addresses of packets before forwarding them.
78 pkt_burst_mac_swap(struct fwd_stream *fs)
80 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
83 struct ether_hdr *eth_hdr;
84 struct ether_addr addr;
88 uint64_t ol_flags = 0;
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 if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
113 ol_flags = PKT_TX_VLAN_PKT;
114 for (i = 0; i < nb_rx; i++) {
116 eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
118 /* Swap dest and src mac addresses. */
119 ether_addr_copy(ð_hdr->d_addr, &addr);
120 ether_addr_copy(ð_hdr->s_addr, ð_hdr->d_addr);
121 ether_addr_copy(&addr, ð_hdr->s_addr);
123 mb->ol_flags = ol_flags;
124 mb->l2_len = sizeof(struct ether_hdr);
125 mb->l3_len = sizeof(struct ipv4_hdr);
126 mb->vlan_tci = txp->tx_vlan_id;
128 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
129 fs->tx_packets += nb_tx;
130 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
131 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
133 if (unlikely(nb_tx < nb_rx)) {
134 fs->fwd_dropped += (nb_rx - nb_tx);
136 rte_pktmbuf_free(pkts_burst[nb_tx]);
137 } while (++nb_tx < nb_rx);
139 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
140 end_tsc = rte_rdtsc();
141 core_cycles = (end_tsc - start_tsc);
142 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
146 struct fwd_engine mac_swap_engine = {
147 .fwd_mode_name = "macswap",
148 .port_fwd_begin = NULL,
149 .port_fwd_end = NULL,
150 .packet_fwd = pkt_burst_mac_swap,