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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_launch.h>
54 #include <rte_per_lcore.h>
55 #include <rte_lcore.h>
56 #include <rte_atomic.h>
57 #include <rte_branch_prediction.h>
58 #include <rte_mempool.h>
60 #include <rte_interrupts.h>
62 #include <rte_ether.h>
63 #include <rte_ethdev.h>
65 #include <rte_string_fns.h>
69 #if defined(RTE_ARCH_X86)
70 #include "macswap_sse.h"
71 #elif defined(RTE_MACHINE_CPUFLAG_NEON)
72 #include "macswap_neon.h"
78 * MAC swap forwarding mode: Swap the source and the destination Ethernet
79 * addresses of packets before forwarding them.
82 pkt_burst_mac_swap(struct fwd_stream *fs)
84 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
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];
113 do_macswap(pkts_burst, nb_rx, txp);
115 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
119 if (unlikely(nb_tx < nb_rx) && fs->retry_enabled) {
121 while (nb_tx < nb_rx && retry++ < burst_tx_retry_num) {
122 rte_delay_us(burst_tx_delay_time);
123 nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
124 &pkts_burst[nb_tx], nb_rx - nb_tx);
127 fs->tx_packets += nb_tx;
128 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
129 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
131 if (unlikely(nb_tx < nb_rx)) {
132 fs->fwd_dropped += (nb_rx - nb_tx);
134 rte_pktmbuf_free(pkts_burst[nb_tx]);
135 } while (++nb_tx < nb_rx);
137 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
138 end_tsc = rte_rdtsc();
139 core_cycles = (end_tsc - start_tsc);
140 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
144 struct fwd_engine mac_swap_engine = {
145 .fwd_mode_name = "macswap",
146 .port_fwd_begin = NULL,
147 .port_fwd_end = NULL,
148 .packet_fwd = pkt_burst_mac_swap,