1 files changed, 141 insertions, 0 deletions
diff --git a/src/spdk/dpdk/app/test-pmd/macfwd.c b/src/spdk/dpdk/app/test-pmd/macfwd.c
new file mode 100644
index 000000000..d2ebb1105
--- /dev/null
+++ b/src/spdk/dpdk/app/test-pmd/macfwd.c
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#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_atomic.h>
+#include <rte_branch_prediction.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 <rte_flow.h>
+
+#include "testpmd.h"
+
+/*
+ * Forwarding of packets in MAC mode.
+ * Change the source and the destination Ethernet addressed of packets
+ * before forwarding them.
+ */
+static void
+pkt_burst_mac_forward(struct fwd_stream *fs)
+{
+	struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
+	struct rte_port  *txp;
+	struct rte_mbuf  *mb;
+	struct rte_ether_hdr *eth_hdr;
+	uint32_t retry;
+	uint16_t nb_rx;
+	uint16_t nb_tx;
+	uint16_t i;
+	uint64_t ol_flags = 0;
+	uint64_t tx_offloads;
+#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];
+	tx_offloads = txp->dev_conf.txmode.offloads;
+	if (tx_offloads	& DEV_TX_OFFLOAD_VLAN_INSERT)
+		ol_flags = PKT_TX_VLAN_PKT;
+	if (tx_offloads & DEV_TX_OFFLOAD_QINQ_INSERT)
+		ol_flags |= PKT_TX_QINQ_PKT;
+	if (tx_offloads & DEV_TX_OFFLOAD_MACSEC_INSERT)
+		ol_flags |= PKT_TX_MACSEC;
+	for (i = 0; i < nb_rx; i++) {
+		if (likely(i < nb_rx - 1))
+			rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i + 1],
+						       void *));
+		mb = pkts_burst[i];
+		eth_hdr = rte_pktmbuf_mtod(mb, struct rte_ether_hdr *);
+		rte_ether_addr_copy(&peer_eth_addrs[fs->peer_addr],
+				&eth_hdr->d_addr);
+		rte_ether_addr_copy(&ports[fs->tx_port].eth_addr,
+				&eth_hdr->s_addr);
+		mb->ol_flags &= IND_ATTACHED_MBUF | EXT_ATTACHED_MBUF;
+		mb->ol_flags |= ol_flags;
+		mb->l2_len = sizeof(struct rte_ether_hdr);
+		mb->l3_len = sizeof(struct rte_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);
+	/*
+	 * Retry if necessary
+	 */
+	if (unlikely(nb_tx < nb_rx) && fs->retry_enabled) {
+		retry = 0;
+		while (nb_tx < nb_rx && retry++ < burst_tx_retry_num) {
+			rte_delay_us(burst_tx_delay_time);
+			nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
+					&pkts_burst[nb_tx], nb_rx - nb_tx);
+		}
+	}
+
+	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_fwd_engine = {
+	.fwd_mode_name  = "mac",
+	.port_fwd_begin = NULL,
+	.port_fwd_end   = NULL,
+	.packet_fwd     = pkt_burst_mac_forward,
+};