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_branch_prediction.h> 28 #include <rte_mempool.h> 29 #include <rte_mbuf.h> 30 #include <rte_interrupts.h> 31 #include <rte_ether.h> 32 #include <rte_ethdev.h> 33 #include <rte_ip.h> 34 #include <rte_string_fns.h> 35 #include <rte_flow.h> 36 37 #include "testpmd.h" 38 #if defined(RTE_ARCH_X86) 39 #include "macswap_sse.h" 40 #elif defined(__ARM_NEON) 41 #include "macswap_neon.h" 42 #else 43 #include "macswap.h" 44 #endif 45 46 /* 47 * MAC swap forwarding mode: Swap the source and the destination Ethernet 48 * addresses of packets before forwarding them. 49 */ 50 static bool 51 pkt_burst_mac_swap(struct fwd_stream *fs) 52 { 53 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 54 uint16_t nb_rx; 55 56 /* 57 * Receive a burst of packets and forward them. 58 */ 59 nb_rx = common_fwd_stream_receive(fs, pkts_burst, nb_pkt_per_burst); 60 if (unlikely(nb_rx == 0)) 61 return false; 62 63 do_macswap(pkts_burst, nb_rx, &ports[fs->tx_port]); 64 common_fwd_stream_transmit(fs, pkts_burst, nb_rx); 65 66 return true; 67 } 68 69 struct fwd_engine mac_swap_engine = { 70 .fwd_mode_name = "macswap", 71 .stream_init = common_fwd_stream_init, 72 .packet_fwd = pkt_burst_mac_swap, 73 }; 74