1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2014-2020 Mellanox Technologies, Ltd
3 */
4
5 #include <stdarg.h>
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <unistd.h>
9 #include <inttypes.h>
10
11 #include <sys/queue.h>
12 #include <sys/stat.h>
13
14 #include <rte_common.h>
15 #include <rte_ether.h>
16 #include <rte_ethdev.h>
17 #include <rte_ip.h>
18 #include <rte_flow.h>
19
20 #include "testpmd.h"
21 #include "5tswap.h"
22
23 /*
24 * 5 tuple swap forwarding mode: Swap the source and the destination of layers
25 * 2,3,4. Swaps source and destination for MAC, IPv4/IPv6, UDP/TCP.
26 * Parses each layer and swaps it. When the next layer doesn't match it stops.
27 */
28 static bool
pkt_burst_5tuple_swap(struct fwd_stream * fs)29 pkt_burst_5tuple_swap(struct fwd_stream *fs)
30 {
31 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
32 uint16_t nb_rx;
33
34 /*
35 * Receive a burst of packets and forward them.
36 */
37 nb_rx = common_fwd_stream_receive(fs, pkts_burst, nb_pkt_per_burst);
38 if (unlikely(nb_rx == 0))
39 return false;
40
41 do_5tswap(pkts_burst, nb_rx, fs);
42
43 common_fwd_stream_transmit(fs, pkts_burst, nb_rx);
44
45 return true;
46 }
47
48 struct fwd_engine five_tuple_swap_fwd_engine = {
49 .fwd_mode_name = "5tswap",
50 .stream_init = common_fwd_stream_init,
51 .packet_fwd = pkt_burst_5tuple_swap,
52 };
53