Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 920 insertions, 0 deletions

diff --git a/app/test/test_pmd_perf.c b/app/test/test_pmd_perf.c
new file mode 100644
index 00000000..59803f7c
--- /dev/null
+++ b/app/test/test_pmd_perf.c
@@ -0,0 +1,920 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   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 Intel 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 <stdio.h>
+#include <inttypes.h>
+#include <signal.h>
+#include <unistd.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_byteorder.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include "packet_burst_generator.h"
+#include "test.h"
+
+#define NB_ETHPORTS_USED                (1)
+#define NB_SOCKETS                      (2)
+#define MEMPOOL_CACHE_SIZE 250
+#define MAX_PKT_BURST                   (32)
+#define RTE_TEST_RX_DESC_DEFAULT        (128)
+#define RTE_TEST_TX_DESC_DEFAULT        (512)
+#define RTE_PORT_ALL            (~(uint8_t)0x0)
+
+/* how long test would take at full line rate */
+#define RTE_TEST_DURATION                (2)
+
+/*
+ * RX and TX Prefetch, Host, and Write-back threshold values should be
+ * carefully set for optimal performance. Consult the network
+ * controller's datasheet and supporting DPDK documentation for guidance
+ * on how these parameters should be set.
+ */
+#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
+#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
+#define RX_WTHRESH 0 /**< Default values of RX write-back threshold reg. */
+
+/*
+ * These default values are optimized for use with the Intel(R) 82599 10 GbE
+ * Controller and the DPDK ixgbe PMD. Consider using other values for other
+ * network controllers and/or network drivers.
+ */
+#define TX_PTHRESH 32 /**< Default values of TX prefetch threshold reg. */
+#define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
+#define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
+
+#define MAX_TRAFFIC_BURST              2048
+
+#define NB_MBUF RTE_MAX(						\
+		(unsigned)(nb_ports*nb_rx_queue*nb_rxd +		\
+			   nb_ports*nb_lcores*MAX_PKT_BURST +		\
+			   nb_ports*nb_tx_queue*nb_txd +		\
+			   nb_lcores*MEMPOOL_CACHE_SIZE +		\
+			   nb_ports*MAX_TRAFFIC_BURST),			\
+			(unsigned)8192)
+
+
+static struct rte_mempool *mbufpool[NB_SOCKETS];
+/* ethernet addresses of ports */
+static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+static struct rte_eth_conf port_conf = {
+	.rxmode = {
+		.mq_mode = ETH_MQ_RX_NONE,
+		.max_rx_pkt_len = ETHER_MAX_LEN,
+		.split_hdr_size = 0,
+		.header_split   = 0, /**< Header Split disabled */
+		.hw_ip_checksum = 0, /**< IP checksum offload enabled */
+		.hw_vlan_filter = 0, /**< VLAN filtering disabled */
+		.hw_vlan_strip  = 0, /**< VLAN strip enabled. */
+		.hw_vlan_extend = 0, /**< Extended VLAN disabled. */
+		.jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
+		.hw_strip_crc   = 0, /**< CRC stripped by hardware */
+		.enable_scatter = 0, /**< scatter rx disabled */
+	},
+	.txmode = {
+		.mq_mode = ETH_MQ_TX_NONE,
+	},
+	.lpbk_mode = 1,  /* enable loopback */
+};
+
+static struct rte_eth_rxconf rx_conf = {
+	.rx_thresh = {
+		.pthresh = RX_PTHRESH,
+		.hthresh = RX_HTHRESH,
+		.wthresh = RX_WTHRESH,
+	},
+	.rx_free_thresh = 32,
+};
+
+static struct rte_eth_txconf tx_conf = {
+	.tx_thresh = {
+		.pthresh = TX_PTHRESH,
+		.hthresh = TX_HTHRESH,
+		.wthresh = TX_WTHRESH,
+	},
+	.tx_free_thresh = 32, /* Use PMD default values */
+	.tx_rs_thresh = 32, /* Use PMD default values */
+	.txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS |
+		      ETH_TXQ_FLAGS_NOVLANOFFL |
+		      ETH_TXQ_FLAGS_NOXSUMSCTP |
+		      ETH_TXQ_FLAGS_NOXSUMUDP |
+		      ETH_TXQ_FLAGS_NOXSUMTCP)
+};
+
+enum {
+	LCORE_INVALID = 0,
+	LCORE_AVAIL,
+	LCORE_USED,
+};
+
+struct lcore_conf {
+	uint8_t status;
+	uint8_t socketid;
+	uint16_t nb_ports;
+	uint8_t portlist[RTE_MAX_ETHPORTS];
+} __rte_cache_aligned;
+
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+
+static uint64_t link_mbps;
+
+enum {
+	SC_CONTINUOUS = 0,
+	SC_BURST_POLL_FIRST,
+	SC_BURST_XMIT_FIRST,
+};
+
+static uint32_t sc_flag;
+
+/* Check the link status of all ports in up to 3s, and print them finally */
+static void
+check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 30 /* 3s (30 * 100ms) in total */
+	uint8_t portid, count, all_ports_up, print_flag = 0;
+	struct rte_eth_link link;
+
+	printf("Checking link statuses...\n");
+	fflush(stdout);
+	for (count = 0; count <= MAX_CHECK_TIME; count++) {
+		all_ports_up = 1;
+		for (portid = 0; portid < port_num; portid++) {
+			if ((port_mask & (1 << portid)) == 0)
+				continue;
+			memset(&link, 0, sizeof(link));
+			rte_eth_link_get_nowait(portid, &link);
+			/* print link status if flag set */
+			if (print_flag == 1) {
+				if (link.link_status) {
+					printf("Port %d Link Up - speed %u "
+						"Mbps - %s\n", (uint8_t)portid,
+						(unsigned)link.link_speed,
+				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+					("full-duplex") : ("half-duplex\n"));
+					if (link_mbps == 0)
+						link_mbps = link.link_speed;
+				} else
+					printf("Port %d Link Down\n",
+						(uint8_t)portid);
+				continue;
+			}
+			/* clear all_ports_up flag if any link down */
+			if (link.link_status == ETH_LINK_DOWN) {
+				all_ports_up = 0;
+				break;
+			}
+		}
+		/* after finally printing all link status, get out */
+		if (print_flag == 1)
+			break;
+
+		if (all_ports_up == 0) {
+			fflush(stdout);
+			rte_delay_ms(CHECK_INTERVAL);
+		}
+
+		/* set the print_flag if all ports up or timeout */
+		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1))
+			print_flag = 1;
+	}
+}
+
+static void
+print_ethaddr(const char *name, const struct ether_addr *eth_addr)
+{
+	char buf[ETHER_ADDR_FMT_SIZE];
+	ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
+	printf("%s%s", name, buf);
+}
+
+static int
+init_traffic(struct rte_mempool *mp,
+	     struct rte_mbuf **pkts_burst, uint32_t burst_size)
+{
+	struct ether_hdr pkt_eth_hdr;
+	struct ipv4_hdr pkt_ipv4_hdr;
+	struct udp_hdr pkt_udp_hdr;
+	uint32_t pktlen;
+	static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF };
+	static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA };
+
+
+	initialize_eth_header(&pkt_eth_hdr,
+		(struct ether_addr *)src_mac,
+		(struct ether_addr *)dst_mac, ETHER_TYPE_IPv4, 0, 0);
+
+	pktlen = initialize_ipv4_header(&pkt_ipv4_hdr,
+					IPV4_ADDR(10, 0, 0, 1),
+					IPV4_ADDR(10, 0, 0, 2), 26);
+	printf("IPv4 pktlen %u\n", pktlen);
+
+	pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18);
+
+	printf("UDP pktlen %u\n", pktlen);
+
+	return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr,
+				     0, &pkt_ipv4_hdr, 1,
+				     &pkt_udp_hdr, burst_size,
+				     PACKET_BURST_GEN_PKT_LEN, 1);
+}
+
+static int
+init_lcores(void)
+{
+	unsigned lcore_id;
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		lcore_conf[lcore_id].socketid =
+			rte_lcore_to_socket_id(lcore_id);
+		if (rte_lcore_is_enabled(lcore_id) == 0) {
+			lcore_conf[lcore_id].status = LCORE_INVALID;
+			continue;
+		} else
+			lcore_conf[lcore_id].status = LCORE_AVAIL;
+	}
+	return 0;
+}
+
+static int
+init_mbufpool(unsigned nb_mbuf)
+{
+	int socketid;
+	unsigned lcore_id;
+	char s[64];
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		if (rte_lcore_is_enabled(lcore_id) == 0)
+			continue;
+
+		socketid = rte_lcore_to_socket_id(lcore_id);
+		if (socketid >= NB_SOCKETS) {
+			rte_exit(EXIT_FAILURE,
+				"Socket %d of lcore %u is out of range %d\n",
+				socketid, lcore_id, NB_SOCKETS);
+		}
+		if (mbufpool[socketid] == NULL) {
+			snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
+			mbufpool[socketid] =
+				rte_pktmbuf_pool_create(s, nb_mbuf,
+					MEMPOOL_CACHE_SIZE, 0,
+					RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
+			if (mbufpool[socketid] == NULL)
+				rte_exit(EXIT_FAILURE,
+					"Cannot init mbuf pool on socket %d\n",
+					socketid);
+			else
+				printf("Allocated mbuf pool on socket %d\n",
+					socketid);
+		}
+	}
+	return 0;
+}
+
+static uint16_t
+alloc_lcore(uint16_t socketid)
+{
+	unsigned lcore_id;
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		if (LCORE_AVAIL != lcore_conf[lcore_id].status ||
+		    lcore_conf[lcore_id].socketid != socketid ||
+		    lcore_id == rte_get_master_lcore())
+			continue;
+		lcore_conf[lcore_id].status = LCORE_USED;
+		lcore_conf[lcore_id].nb_ports = 0;
+		return lcore_id;
+	}
+
+	return (uint16_t)-1;
+}
+
+volatile uint64_t stop;
+uint64_t count;
+uint64_t drop;
+uint64_t idle;
+
+static void
+reset_count(void)
+{
+	count = 0;
+	drop = 0;
+	idle = 0;
+}
+
+static void
+stats_display(uint8_t port_id)
+{
+	struct rte_eth_stats stats;
+	rte_eth_stats_get(port_id, &stats);
+
+	printf("  RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes:  "
+	       "%-"PRIu64"\n",
+	       stats.ipackets, stats.imissed, stats.ibytes);
+	printf("  RX-errors: %-10"PRIu64" RX-nombuf:  %-10"PRIu64"\n",
+	       stats.ierrors, stats.rx_nombuf);
+	printf("  TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes:  "
+	       "%-"PRIu64"\n",
+	       stats.opackets, stats.oerrors, stats.obytes);
+}
+
+static void
+signal_handler(int signum)
+{
+	/*  USR1 signal, stop testing */
+	if (signum == SIGUSR1) {
+		printf("Force Stop!\n");
+		stop = 1;
+	}
+
+	/*  USR2 signal, print stats */
+	if (signum == SIGUSR2)
+		stats_display(0);
+}
+
+struct rte_mbuf **tx_burst;
+
+uint64_t (*do_measure)(struct lcore_conf *conf,
+		       struct rte_mbuf *pkts_burst[],
+		       uint64_t total_pkts);
+
+static uint64_t
+measure_rxtx(struct lcore_conf *conf,
+	     struct rte_mbuf *pkts_burst[],
+	     uint64_t total_pkts)
+{
+	unsigned i, portid, nb_rx, nb_tx;
+	uint64_t prev_tsc, cur_tsc;
+
+	prev_tsc = rte_rdtsc();
+
+	while (likely(!stop)) {
+		for (i = 0; i < conf->nb_ports; i++) {
+			portid = conf->portlist[i];
+			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
+						 pkts_burst, MAX_PKT_BURST);
+			if (unlikely(nb_rx == 0)) {
+				idle++;
+				continue;
+			}
+
+			count += nb_rx;
+			nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
+			if (unlikely(nb_tx < nb_rx)) {
+				drop += (nb_rx - nb_tx);
+				do {
+					rte_pktmbuf_free(pkts_burst[nb_tx]);
+				} while (++nb_tx < nb_rx);
+			}
+		}
+		if (unlikely(count >= total_pkts))
+			break;
+	}
+
+	cur_tsc = rte_rdtsc();
+
+	return cur_tsc - prev_tsc;
+}
+
+static uint64_t
+measure_rxonly(struct lcore_conf *conf,
+	       struct rte_mbuf *pkts_burst[],
+	       uint64_t total_pkts)
+{
+	unsigned i, portid, nb_rx, nb_tx;
+	uint64_t diff_tsc, cur_tsc;
+
+	diff_tsc = 0;
+	while (likely(!stop)) {
+		for (i = 0; i < conf->nb_ports; i++) {
+			portid = conf->portlist[i];
+
+			cur_tsc = rte_rdtsc();
+			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
+						 pkts_burst, MAX_PKT_BURST);
+			if (unlikely(nb_rx == 0)) {
+				idle++;
+				continue;
+			}
+			diff_tsc += rte_rdtsc() - cur_tsc;
+
+			count += nb_rx;
+			nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
+			if (unlikely(nb_tx < nb_rx)) {
+				drop += (nb_rx - nb_tx);
+				do {
+					rte_pktmbuf_free(pkts_burst[nb_tx]);
+				} while (++nb_tx < nb_rx);
+			}
+		}
+		if (unlikely(count >= total_pkts))
+			break;
+	}
+
+	return diff_tsc;
+}
+
+static uint64_t
+measure_txonly(struct lcore_conf *conf,
+	       struct rte_mbuf *pkts_burst[],
+	       uint64_t total_pkts)
+{
+	unsigned i, portid, nb_rx, nb_tx;
+	uint64_t diff_tsc, cur_tsc;
+
+	printf("do tx measure\n");
+	diff_tsc = 0;
+	while (likely(!stop)) {
+		for (i = 0; i < conf->nb_ports; i++) {
+			portid = conf->portlist[i];
+			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
+						 pkts_burst, MAX_PKT_BURST);
+			if (unlikely(nb_rx == 0)) {
+				idle++;
+				continue;
+			}
+
+			count += nb_rx;
+
+			cur_tsc = rte_rdtsc();
+			nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
+			if (unlikely(nb_tx < nb_rx)) {
+				drop += (nb_rx - nb_tx);
+				do {
+					rte_pktmbuf_free(pkts_burst[nb_tx]);
+				} while (++nb_tx < nb_rx);
+			}
+			diff_tsc += rte_rdtsc() - cur_tsc;
+		}
+		if (unlikely(count >= total_pkts))
+			break;
+	}
+
+	return diff_tsc;
+}
+
+/* main processing loop */
+static int
+main_loop(__rte_unused void *args)
+{
+#define PACKET_SIZE 64
+#define FRAME_GAP 12
+#define MAC_PREAMBLE 8
+	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+	unsigned lcore_id;
+	unsigned i, portid, nb_rx = 0, nb_tx = 0;
+	struct lcore_conf *conf;
+	int pkt_per_port;
+	uint64_t diff_tsc;
+	uint64_t packets_per_second, total_packets;
+
+	lcore_id = rte_lcore_id();
+	conf = &lcore_conf[lcore_id];
+	if (conf->status != LCORE_USED)
+		return 0;
+
+	pkt_per_port = MAX_TRAFFIC_BURST;
+
+	int idx = 0;
+	for (i = 0; i < conf->nb_ports; i++) {
+		int num = pkt_per_port;
+		portid = conf->portlist[i];
+		printf("inject %d packet to port %d\n", num, portid);
+		while (num) {
+			nb_tx = RTE_MIN(MAX_PKT_BURST, num);
+			nb_tx = rte_eth_tx_burst(portid, 0,
+						&tx_burst[idx], nb_tx);
+			num -= nb_tx;
+			idx += nb_tx;
+		}
+	}
+	printf("Total packets inject to prime ports = %u\n", idx);
+
+	packets_per_second = (link_mbps * 1000 * 1000) /
+		((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT);
+	printf("Each port will do %"PRIu64" packets per second\n",
+	       packets_per_second);
+
+	total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second;
+	printf("Test will stop after at least %"PRIu64" packets received\n",
+		+ total_packets);
+
+	diff_tsc = do_measure(conf, pkts_burst, total_packets);
+
+	for (i = 0; i < conf->nb_ports; i++) {
+		portid = conf->portlist[i];
+		int nb_free = pkt_per_port;
+		do { /* dry out */
+			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
+						 pkts_burst, MAX_PKT_BURST);
+			nb_tx = 0;
+			while (nb_tx < nb_rx)
+				rte_pktmbuf_free(pkts_burst[nb_tx++]);
+			nb_free -= nb_rx;
+		} while (nb_free != 0);
+		printf("free %d mbuf left in port %u\n", pkt_per_port, portid);
+	}
+
+	if (count == 0)
+		return -1;
+
+	printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n",
+	       count, drop, idle);
+	printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count);
+
+	return 0;
+}
+
+rte_atomic64_t start;
+
+static inline int
+poll_burst(void *args)
+{
+#define MAX_IDLE           (10000)
+	unsigned lcore_id;
+	struct rte_mbuf **pkts_burst;
+	uint64_t diff_tsc, cur_tsc;
+	uint16_t next[RTE_MAX_ETHPORTS];
+	struct lcore_conf *conf;
+	uint32_t pkt_per_port = *((uint32_t *)args);
+	unsigned i, portid, nb_rx = 0;
+	uint64_t total;
+	uint64_t timeout = MAX_IDLE;
+
+	lcore_id = rte_lcore_id();
+	conf = &lcore_conf[lcore_id];
+	if (conf->status != LCORE_USED)
+		return 0;
+
+	total = pkt_per_port * conf->nb_ports;
+	printf("start to receive total expect %"PRIu64"\n", total);
+
+	pkts_burst = (struct rte_mbuf **)
+		rte_calloc_socket("poll_burst",
+				  total, sizeof(void *),
+				  RTE_CACHE_LINE_SIZE, conf->socketid);
+	if (!pkts_burst)
+		return -1;
+
+	for (i = 0; i < conf->nb_ports; i++) {
+		portid = conf->portlist[i];
+		next[portid] = i * pkt_per_port;
+	}
+
+	while (!rte_atomic64_read(&start))
+		;
+
+	cur_tsc = rte_rdtsc();
+	while (total) {
+		for (i = 0; i < conf->nb_ports; i++) {
+			portid = conf->portlist[i];
+			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
+						 &pkts_burst[next[portid]],
+						 MAX_PKT_BURST);
+			if (unlikely(nb_rx == 0)) {
+				timeout--;
+				if (unlikely(timeout == 0))
+					goto timeout;
+				continue;
+			}
+			next[portid] += nb_rx;
+			total -= nb_rx;
+		}
+	}
+timeout:
+	diff_tsc = rte_rdtsc() - cur_tsc;
+
+	printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n",
+	       total, MAX_IDLE - timeout);
+
+	/* clean up */
+	total = pkt_per_port * conf->nb_ports - total;
+	for (i = 0; i < total; i++)
+		rte_pktmbuf_free(pkts_burst[i]);
+
+	rte_free(pkts_burst);
+
+	if (total > 0)
+		return diff_tsc / total;
+	else
+		return -1;
+}
+
+static int
+exec_burst(uint32_t flags, int lcore)
+{
+	unsigned i, portid, nb_tx = 0;
+	struct lcore_conf *conf;
+	uint32_t pkt_per_port;
+	int num, idx = 0;
+	int diff_tsc;
+
+	conf = &lcore_conf[lcore];
+
+	pkt_per_port = MAX_TRAFFIC_BURST;
+	num = pkt_per_port;
+
+	rte_atomic64_init(&start);
+
+	/* start polling thread, but not actually poll yet */
+	rte_eal_remote_launch(poll_burst,
+			      (void *)&pkt_per_port, lcore);
+
+	/* Only when polling first */
+	if (flags == SC_BURST_POLL_FIRST)
+		rte_atomic64_set(&start, 1);
+
+	/* start xmit */
+	while (num) {
+		nb_tx = RTE_MIN(MAX_PKT_BURST, num);
+		for (i = 0; i < conf->nb_ports; i++) {
+			portid = conf->portlist[i];
+			rte_eth_tx_burst(portid, 0,
+					 &tx_burst[idx], nb_tx);
+			idx += nb_tx;
+		}
+		num -= nb_tx;
+	}
+
+	sleep(5);
+
+	/* only when polling second  */
+	if (flags == SC_BURST_XMIT_FIRST)
+		rte_atomic64_set(&start, 1);
+
+	/* wait for polling finished */
+	diff_tsc = rte_eal_wait_lcore(lcore);
+	if (diff_tsc < 0) {
+		printf("exec_burst: Failed to measure cycles per packet\n");
+		return -1;
+	}
+
+	printf("Result: %d cycles per packet\n", diff_tsc);
+
+	return 0;
+}
+
+static int
+test_pmd_perf(void)
+{
+	uint16_t nb_ports, num, nb_lcores, slave_id = (uint16_t)-1;
+	uint16_t nb_rxd = MAX_TRAFFIC_BURST;
+	uint16_t nb_txd = MAX_TRAFFIC_BURST;
+	uint16_t portid;
+	uint16_t nb_rx_queue = 1, nb_tx_queue = 1;
+	int socketid = -1;
+	int ret;
+
+	printf("Start PMD RXTX cycles cost test.\n");
+
+	signal(SIGUSR1, signal_handler);
+	signal(SIGUSR2, signal_handler);
+
+	nb_ports = rte_eth_dev_count();
+	if (nb_ports < NB_ETHPORTS_USED) {
+		printf("At least %u port(s) used for perf. test\n",
+		       NB_ETHPORTS_USED);
+		return -1;
+	}
+
+	if (nb_ports > RTE_MAX_ETHPORTS)
+		nb_ports = RTE_MAX_ETHPORTS;
+
+	nb_lcores = rte_lcore_count();
+
+	memset(lcore_conf, 0, sizeof(lcore_conf));
+	init_lcores();
+
+	init_mbufpool(NB_MBUF);
+
+	if (sc_flag == SC_CONTINUOUS) {
+		nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+		nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+	}
+	printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd);
+
+	reset_count();
+	num = 0;
+	for (portid = 0; portid < nb_ports; portid++) {
+		if (socketid == -1) {
+			socketid = rte_eth_dev_socket_id(portid);
+			slave_id = alloc_lcore(socketid);
+			if (slave_id == (uint16_t)-1) {
+				printf("No avail lcore to run test\n");
+				return -1;
+			}
+			printf("Performance test runs on lcore %u socket %u\n",
+			       slave_id, socketid);
+		}
+
+		if (socketid != rte_eth_dev_socket_id(portid)) {
+			printf("Skip port %d\n", portid);
+			continue;
+		}
+
+		/* port configure */
+		ret = rte_eth_dev_configure(portid, nb_rx_queue,
+					    nb_tx_queue, &port_conf);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE,
+				"Cannot configure device: err=%d, port=%d\n",
+				 ret, portid);
+
+		rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+		printf("Port %u ", portid);
+		print_ethaddr("Address:", &ports_eth_addr[portid]);
+		printf("\n");
+
+		/* tx queue setup */
+		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
+					     socketid, &tx_conf);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE,
+				"rte_eth_tx_queue_setup: err=%d, "
+				"port=%d\n", ret, portid);
+
+		/* rx queue steup */
+		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
+						socketid, &rx_conf,
+						mbufpool[socketid]);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
+				 "port=%d\n", ret, portid);
+
+		/* Start device */
+		stop = 0;
+		ret = rte_eth_dev_start(portid);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE,
+				"rte_eth_dev_start: err=%d, port=%d\n",
+				ret, portid);
+
+		/* always eanble promiscuous */
+		rte_eth_promiscuous_enable(portid);
+
+		lcore_conf[slave_id].portlist[num++] = portid;
+		lcore_conf[slave_id].nb_ports++;
+	}
+	check_all_ports_link_status(nb_ports, RTE_PORT_ALL);
+
+	if (tx_burst == NULL) {
+		tx_burst = (struct rte_mbuf **)
+			rte_calloc_socket("tx_buff",
+					  MAX_TRAFFIC_BURST * nb_ports,
+					  sizeof(void *),
+					  RTE_CACHE_LINE_SIZE, socketid);
+		if (!tx_burst)
+			return -1;
+	}
+
+	init_traffic(mbufpool[socketid],
+		     tx_burst, MAX_TRAFFIC_BURST * nb_ports);
+
+	printf("Generate %d packets @socket %d\n",
+	       MAX_TRAFFIC_BURST * nb_ports, socketid);
+
+	if (sc_flag == SC_CONTINUOUS) {
+		/* do both rxtx by default */
+		if (NULL == do_measure)
+			do_measure = measure_rxtx;
+
+		rte_eal_remote_launch(main_loop, NULL, slave_id);
+
+		if (rte_eal_wait_lcore(slave_id) < 0)
+			return -1;
+	} else if (sc_flag == SC_BURST_POLL_FIRST ||
+		   sc_flag == SC_BURST_XMIT_FIRST)
+		if (exec_burst(sc_flag, slave_id) < 0)
+			return -1;
+
+	/* port tear down */
+	for (portid = 0; portid < nb_ports; portid++) {
+		if (socketid != rte_eth_dev_socket_id(portid))
+			continue;
+
+		rte_eth_dev_stop(portid);
+	}
+
+	return 0;
+}
+
+int
+test_set_rxtx_conf(cmdline_fixed_string_t mode)
+{
+	printf("mode switch to %s\n", mode);
+
+	if (!strcmp(mode, "vector")) {
+		/* vector rx, tx */
+		tx_conf.txq_flags = 0xf01;
+		tx_conf.tx_rs_thresh = 32;
+		tx_conf.tx_free_thresh = 32;
+		port_conf.rxmode.hw_ip_checksum = 0;
+		port_conf.rxmode.enable_scatter = 0;
+		return 0;
+	} else if (!strcmp(mode, "scalar")) {
+		/* bulk alloc rx, full-featured tx */
+		tx_conf.txq_flags = 0;
+		tx_conf.tx_rs_thresh = 32;
+		tx_conf.tx_free_thresh = 32;
+		port_conf.rxmode.hw_ip_checksum = 1;
+		port_conf.rxmode.enable_scatter = 0;
+		return 0;
+	} else if (!strcmp(mode, "hybrid")) {
+		/* bulk alloc rx, vector tx
+		 * when vec macro not define,
+		 * using the same rx/tx as scalar
+		 */
+		tx_conf.txq_flags = 0xf01;
+		tx_conf.tx_rs_thresh = 32;
+		tx_conf.tx_free_thresh = 32;
+		port_conf.rxmode.hw_ip_checksum = 1;
+		port_conf.rxmode.enable_scatter = 0;
+		return 0;
+	} else if (!strcmp(mode, "full")) {
+		/* full feature rx,tx pair */
+		tx_conf.txq_flags = 0x0;   /* must condition */
+		tx_conf.tx_rs_thresh = 32;
+		tx_conf.tx_free_thresh = 32;
+		port_conf.rxmode.hw_ip_checksum = 0;
+		port_conf.rxmode.enable_scatter = 1; /* must condition */
+		return 0;
+	}
+
+	return -1;
+}
+
+int
+test_set_rxtx_anchor(cmdline_fixed_string_t type)
+{
+	printf("type switch to %s\n", type);
+
+	if (!strcmp(type, "rxtx")) {
+		do_measure = measure_rxtx;
+		return 0;
+	} else if (!strcmp(type, "rxonly")) {
+		do_measure = measure_rxonly;
+		return 0;
+	} else if (!strcmp(type, "txonly")) {
+		do_measure = measure_txonly;
+		return 0;
+	}
+
+	return -1;
+}
+
+int
+test_set_rxtx_sc(cmdline_fixed_string_t type)
+{
+	printf("stream control switch to %s\n", type);
+
+	if (!strcmp(type, "continuous")) {
+		sc_flag = SC_CONTINUOUS;
+		return 0;
+	} else if (!strcmp(type, "poll_before_xmit")) {
+		sc_flag = SC_BURST_POLL_FIRST;
+		return 0;
+	} else if (!strcmp(type, "poll_after_xmit")) {
+		sc_flag = SC_BURST_XMIT_FIRST;
+		return 0;
+	}
+
+	return -1;
+}
+
+static struct test_command pmd_perf_cmd = {
+	.command = "pmd_perf_autotest",
+	.callback = test_pmd_perf,
+};
+REGISTER_TEST_COMMAND(pmd_perf_cmd);