f-stack/dpdk/app/test-pmd/macswap.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2014-2020 Mellanox Technologies, Ltd
 */

#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#include <inttypes.h>

#include <sys/queue.h>
#include <sys/stat.h>

#include <rte_common.h>
#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_debug.h>
#include <rte_cycles.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_launch.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_interrupts.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_ip.h>
#include <rte_string_fns.h>
#include <rte_flow.h>

#include "testpmd.h"
#if defined(RTE_ARCH_X86)
#include "macswap_sse.h"
#elif defined(__ARM_NEON)
#include "macswap_neon.h"
#else
#include "macswap.h"
#endif

/*
 * MAC swap forwarding mode: Swap the source and the destination Ethernet
 * addresses of packets before forwarding them.
 */
static bool
pkt_burst_mac_swap(struct fwd_stream *fs)
{
	struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
	uint16_t nb_rx;

	/*
	 * Receive a burst of packets and forward them.
	 */
	nb_rx = common_fwd_stream_receive(fs, pkts_burst, nb_pkt_per_burst);
	if (unlikely(nb_rx == 0))
		return false;

	do_macswap(pkts_burst, nb_rx, &ports[fs->tx_port]);
	common_fwd_stream_transmit(fs, pkts_burst, nb_rx);

	return true;
}

struct fwd_engine mac_swap_engine = {
	.fwd_mode_name  = "macswap",
	.stream_init    = common_fwd_stream_init,
	.packet_fwd     = pkt_burst_mac_swap,
};