app/testpmd: remove unnecessary UDP tunnel check
[dpdk.git] / app / test-pmd / macswap.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright 2014-2020 Mellanox Technologies, Ltd
3  */
4
5 #include <stdarg.h>
6 #include <string.h>
7 #include <stdio.h>
8 #include <errno.h>
9 #include <stdint.h>
10 #include <unistd.h>
11 #include <inttypes.h>
12
13 #include <sys/queue.h>
14 #include <sys/stat.h>
15
16 #include <rte_common.h>
17 #include <rte_byteorder.h>
18 #include <rte_log.h>
19 #include <rte_debug.h>
20 #include <rte_cycles.h>
21 #include <rte_memory.h>
22 #include <rte_memcpy.h>
23 #include <rte_launch.h>
24 #include <rte_eal.h>
25 #include <rte_per_lcore.h>
26 #include <rte_lcore.h>
27 #include <rte_atomic.h>
28 #include <rte_branch_prediction.h>
29 #include <rte_mempool.h>
30 #include <rte_mbuf.h>
31 #include <rte_interrupts.h>
32 #include <rte_pci.h>
33 #include <rte_ether.h>
34 #include <rte_ethdev.h>
35 #include <rte_ip.h>
36 #include <rte_string_fns.h>
37 #include <rte_flow.h>
38
39 #include "testpmd.h"
40 #if defined(RTE_ARCH_X86)
41 #include "macswap_sse.h"
42 #elif defined(__ARM_NEON)
43 #include "macswap_neon.h"
44 #else
45 #include "macswap.h"
46 #endif
47
48 /*
49  * MAC swap forwarding mode: Swap the source and the destination Ethernet
50  * addresses of packets before forwarding them.
51  */
52 static void
53 pkt_burst_mac_swap(struct fwd_stream *fs)
54 {
55         struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
56         struct rte_port  *txp;
57         uint16_t nb_rx;
58         uint16_t nb_tx;
59         uint32_t retry;
60         uint64_t start_tsc = 0;
61
62         get_start_cycles(&start_tsc);
63
64         /*
65          * Receive a burst of packets and forward them.
66          */
67         nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
68                                  nb_pkt_per_burst);
69         inc_rx_burst_stats(fs, nb_rx);
70         if (unlikely(nb_rx == 0))
71                 return;
72
73         fs->rx_packets += nb_rx;
74         txp = &ports[fs->tx_port];
75
76         do_macswap(pkts_burst, nb_rx, txp);
77
78         nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
79         /*
80          * Retry if necessary
81          */
82         if (unlikely(nb_tx < nb_rx) && fs->retry_enabled) {
83                 retry = 0;
84                 while (nb_tx < nb_rx && retry++ < burst_tx_retry_num) {
85                         rte_delay_us(burst_tx_delay_time);
86                         nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
87                                         &pkts_burst[nb_tx], nb_rx - nb_tx);
88                 }
89         }
90         fs->tx_packets += nb_tx;
91         inc_tx_burst_stats(fs, nb_tx);
92         if (unlikely(nb_tx < nb_rx)) {
93                 fs->fwd_dropped += (nb_rx - nb_tx);
94                 do {
95                         rte_pktmbuf_free(pkts_burst[nb_tx]);
96                 } while (++nb_tx < nb_rx);
97         }
98         get_end_cycles(fs, start_tsc);
99 }
100
101 struct fwd_engine mac_swap_engine = {
102         .fwd_mode_name  = "macswap",
103         .port_fwd_begin = NULL,
104         .port_fwd_end   = NULL,
105         .packet_fwd     = pkt_burst_mac_swap,
106 };