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-rw-r--r--app/test-pmd/macswap.c153
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diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c
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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Tilera Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Tilera Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#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_memzone.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+#include <rte_ring.h>
+#include <rte_memory.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ip.h>
+#include <rte_string_fns.h>
+
+#include "testpmd.h"
+
+/*
+ * MAC swap forwarding mode: Swap the source and the destination Ethernet
+ * addresses of packets before forwarding them.
+ */
+static void
+pkt_burst_mac_swap(struct fwd_stream *fs)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ struct rte_port *txp;
+ struct rte_mbuf *mb;
+ struct ether_hdr *eth_hdr;
+ struct ether_addr addr;
+ uint16_t nb_rx;
+ uint16_t nb_tx;
+ uint16_t i;
+ uint64_t ol_flags = 0;
+#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
+ uint64_t start_tsc;
+ uint64_t end_tsc;
+ uint64_t core_cycles;
+#endif
+
+#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
+ start_tsc = rte_rdtsc();
+#endif
+
+ /*
+ * Receive a burst of packets and forward them.
+ */
+ nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
+ nb_pkt_per_burst);
+ if (unlikely(nb_rx == 0))
+ return;
+
+#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
+ fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
+#endif
+ fs->rx_packets += nb_rx;
+ txp = &ports[fs->tx_port];
+ if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
+ ol_flags = PKT_TX_VLAN_PKT;
+ if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ)
+ ol_flags |= PKT_TX_QINQ_PKT;
+ for (i = 0; i < nb_rx; i++) {
+ mb = pkts_burst[i];
+ eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
+
+ /* Swap dest and src mac addresses. */
+ ether_addr_copy(&eth_hdr->d_addr, &addr);
+ ether_addr_copy(&eth_hdr->s_addr, &eth_hdr->d_addr);
+ ether_addr_copy(&addr, &eth_hdr->s_addr);
+
+ mb->ol_flags = ol_flags;
+ mb->l2_len = sizeof(struct ether_hdr);
+ mb->l3_len = sizeof(struct ipv4_hdr);
+ mb->vlan_tci = txp->tx_vlan_id;
+ mb->vlan_tci_outer = txp->tx_vlan_id_outer;
+ }
+ nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
+ fs->tx_packets += nb_tx;
+#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
+ fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
+#endif
+ if (unlikely(nb_tx < nb_rx)) {
+ fs->fwd_dropped += (nb_rx - nb_tx);
+ do {
+ rte_pktmbuf_free(pkts_burst[nb_tx]);
+ } while (++nb_tx < nb_rx);
+ }
+#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
+ end_tsc = rte_rdtsc();
+ core_cycles = (end_tsc - start_tsc);
+ fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
+#endif
+}
+
+struct fwd_engine mac_swap_engine = {
+ .fwd_mode_name = "macswap",
+ .port_fwd_begin = NULL,
+ .port_fwd_end = NULL,
+ .packet_fwd = pkt_burst_mac_swap,
+};