diff options
Diffstat (limited to 'app/test-pmd/macswap.c')
| -rw-r--r-- | app/test-pmd/macswap.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c new file mode 100644 index 00000000..154889d1 --- /dev/null +++ b/app/test-pmd/macswap.c @@ -0,0 +1,153 @@ +/*- + * 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(ð_hdr->d_addr, &addr); + ether_addr_copy(ð_hdr->s_addr, ð_hdr->d_addr); + ether_addr_copy(&addr, ð_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, +}; |