X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=examples%2Fvmdq%2Fmain.c;fp=examples%2Fvmdq%2Fmain.c;h=178af2f5b9d98aa06a3814cc9feafec5e2b73c42;hb=97f17497d162afdb82c8704bf097f0fee3724b2e;hp=0000000000000000000000000000000000000000;hpb=e04be89c2409570e0055b2cda60bd11395bb93b0;p=deb_dpdk.git

diff --git a/examples/vmdq/main.c b/examples/vmdq/main.c
new file mode 100644
index 00000000..178af2f5
--- /dev/null
+++ b/examples/vmdq/main.c
@@ -0,0 +1,641 @@
+/*-
+ *   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 <stdint.h>
+#include <sys/queue.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <getopt.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_random.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_log.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_memcpy.h>
+
+#define MAX_QUEUES 1024
+/*
+ * 1024 queues require to meet the needs of a large number of vmdq_pools.
+ * (RX/TX_queue_nb * RX/TX_ring_descriptors_nb) per port.
+ */
+#define NUM_MBUFS_PER_PORT (MAX_QUEUES * RTE_MAX(RTE_TEST_RX_DESC_DEFAULT, \
+						RTE_TEST_TX_DESC_DEFAULT))
+#define MBUF_CACHE_SIZE 64
+
+#define MAX_PKT_BURST 32
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+
+#define INVALID_PORT_ID 0xFF
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask;
+
+/* number of pools (if user does not specify any, 8 by default */
+static uint32_t num_queues = 8;
+static uint32_t num_pools = 8;
+
+/* empty vmdq configuration structure. Filled in programatically */
+static const struct rte_eth_conf vmdq_conf_default = {
+	.rxmode = {
+		.mq_mode        = ETH_MQ_RX_VMDQ_ONLY,
+		.split_hdr_size = 0,
+		.header_split   = 0, /**< Header Split disabled */
+		.hw_ip_checksum = 0, /**< IP checksum offload disabled */
+		.hw_vlan_filter = 0, /**< VLAN filtering disabled */
+		.jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
+	},
+
+	.txmode = {
+		.mq_mode = ETH_MQ_TX_NONE,
+	},
+	.rx_adv_conf = {
+		/*
+		 * should be overridden separately in code with
+		 * appropriate values
+		 */
+		.vmdq_rx_conf = {
+			.nb_queue_pools = ETH_8_POOLS,
+			.enable_default_pool = 0,
+			.default_pool = 0,
+			.nb_pool_maps = 0,
+			.pool_map = {{0, 0},},
+		},
+	},
+};
+
+static unsigned lcore_ids[RTE_MAX_LCORE];
+static uint8_t ports[RTE_MAX_ETHPORTS];
+static unsigned num_ports; /**< The number of ports specified in command line */
+
+/* array used for printing out statistics */
+volatile unsigned long rxPackets[MAX_QUEUES] = {0};
+
+const uint16_t vlan_tags[] = {
+	0,  1,  2,  3,  4,  5,  6,  7,
+	8,  9, 10, 11,	12, 13, 14, 15,
+	16, 17, 18, 19, 20, 21, 22, 23,
+	24, 25, 26, 27, 28, 29, 30, 31,
+	32, 33, 34, 35, 36, 37, 38, 39,
+	40, 41, 42, 43, 44, 45, 46, 47,
+	48, 49, 50, 51, 52, 53, 54, 55,
+	56, 57, 58, 59, 60, 61, 62, 63,
+};
+const uint16_t num_vlans = RTE_DIM(vlan_tags);
+static uint16_t num_pf_queues,  num_vmdq_queues;
+static uint16_t vmdq_pool_base, vmdq_queue_base;
+/* pool mac addr template, pool mac addr is like: 52 54 00 12 port# pool# */
+static struct ether_addr pool_addr_template = {
+	.addr_bytes = {0x52, 0x54, 0x00, 0x12, 0x00, 0x00}
+};
+
+/* ethernet addresses of ports */
+static struct ether_addr vmdq_ports_eth_addr[RTE_MAX_ETHPORTS];
+
+#define MAX_QUEUE_NUM_10G 128
+#define MAX_QUEUE_NUM_1G 8
+#define MAX_POOL_MAP_NUM_10G 64
+#define MAX_POOL_MAP_NUM_1G 32
+#define MAX_POOL_NUM_10G 64
+#define MAX_POOL_NUM_1G 8
+/*
+ * Builds up the correct configuration for vmdq based on the vlan tags array
+ * given above, and determine the queue number and pool map number according to
+ * valid pool number
+ */
+static inline int
+get_eth_conf(struct rte_eth_conf *eth_conf, uint32_t num_pools)
+{
+	struct rte_eth_vmdq_rx_conf conf;
+	unsigned i;
+
+	conf.nb_queue_pools = (enum rte_eth_nb_pools)num_pools;
+	conf.nb_pool_maps = num_pools;
+	conf.enable_default_pool = 0;
+	conf.default_pool = 0; /* set explicit value, even if not used */
+
+	for (i = 0; i < conf.nb_pool_maps; i++) {
+		conf.pool_map[i].vlan_id = vlan_tags[i];
+		conf.pool_map[i].pools = (1UL << (i % num_pools));
+	}
+
+	(void)(rte_memcpy(eth_conf, &vmdq_conf_default, sizeof(*eth_conf)));
+	(void)(rte_memcpy(&eth_conf->rx_adv_conf.vmdq_rx_conf, &conf,
+		   sizeof(eth_conf->rx_adv_conf.vmdq_rx_conf)));
+	return 0;
+}
+
+/*
+ * Initialises a given port using global settings and with the rx buffers
+ * coming from the mbuf_pool passed as parameter
+ */
+static inline int
+port_init(uint8_t port, struct rte_mempool *mbuf_pool)
+{
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_rxconf *rxconf;
+	struct rte_eth_conf port_conf;
+	uint16_t rxRings, txRings;
+	const uint16_t rxRingSize = RTE_TEST_RX_DESC_DEFAULT, txRingSize = RTE_TEST_TX_DESC_DEFAULT;
+	int retval;
+	uint16_t q;
+	uint16_t queues_per_pool;
+	uint32_t max_nb_pools;
+
+	/*
+	 * The max pool number from dev_info will be used to validate the pool
+	 * number specified in cmd line
+	 */
+	rte_eth_dev_info_get(port, &dev_info);
+	max_nb_pools = (uint32_t)dev_info.max_vmdq_pools;
+	/*
+	 * We allow to process part of VMDQ pools specified by num_pools in
+	 * command line.
+	 */
+	if (num_pools > max_nb_pools) {
+		printf("num_pools %d >max_nb_pools %d\n",
+			num_pools, max_nb_pools);
+		return -1;
+	}
+	retval = get_eth_conf(&port_conf, max_nb_pools);
+	if (retval < 0)
+		return retval;
+
+	/*
+	 * NIC queues are divided into pf queues and vmdq queues.
+	 */
+	/* There is assumption here all ports have the same configuration! */
+	num_pf_queues = dev_info.max_rx_queues - dev_info.vmdq_queue_num;
+	queues_per_pool = dev_info.vmdq_queue_num / dev_info.max_vmdq_pools;
+	num_vmdq_queues = num_pools * queues_per_pool;
+	num_queues = num_pf_queues + num_vmdq_queues;
+	vmdq_queue_base = dev_info.vmdq_queue_base;
+	vmdq_pool_base  = dev_info.vmdq_pool_base;
+
+	printf("pf queue num: %u, configured vmdq pool num: %u,"
+		" each vmdq pool has %u queues\n",
+		num_pf_queues, num_pools, queues_per_pool);
+	printf("vmdq queue base: %d pool base %d\n",
+		vmdq_queue_base, vmdq_pool_base);
+	if (port >= rte_eth_dev_count())
+		return -1;
+
+	/*
+	 * Though in this example, we only receive packets from the first queue
+	 * of each pool and send packets through first rte_lcore_count() tx
+	 * queues of vmdq queues, all queues including pf queues are setup.
+	 * This is because VMDQ queues doesn't always start from zero, and the
+	 * PMD layer doesn't support selectively initialising part of rx/tx
+	 * queues.
+	 */
+	rxRings = (uint16_t)dev_info.max_rx_queues;
+	txRings = (uint16_t)dev_info.max_tx_queues;
+	retval = rte_eth_dev_configure(port, rxRings, txRings, &port_conf);
+	if (retval != 0)
+		return retval;
+
+	rte_eth_dev_info_get(port, &dev_info);
+	rxconf = &dev_info.default_rxconf;
+	rxconf->rx_drop_en = 1;
+	for (q = 0; q < rxRings; q++) {
+		retval = rte_eth_rx_queue_setup(port, q, rxRingSize,
+					rte_eth_dev_socket_id(port),
+					rxconf,
+					mbuf_pool);
+		if (retval < 0) {
+			printf("initialise rx queue %d failed\n", q);
+			return retval;
+		}
+	}
+
+	for (q = 0; q < txRings; q++) {
+		retval = rte_eth_tx_queue_setup(port, q, txRingSize,
+					rte_eth_dev_socket_id(port),
+					NULL);
+		if (retval < 0) {
+			printf("initialise tx queue %d failed\n", q);
+			return retval;
+		}
+	}
+
+	retval  = rte_eth_dev_start(port);
+	if (retval < 0) {
+		printf("port %d start failed\n", port);
+		return retval;
+	}
+
+	rte_eth_macaddr_get(port, &vmdq_ports_eth_addr[port]);
+	printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
+			" %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
+			(unsigned)port,
+			vmdq_ports_eth_addr[port].addr_bytes[0],
+			vmdq_ports_eth_addr[port].addr_bytes[1],
+			vmdq_ports_eth_addr[port].addr_bytes[2],
+			vmdq_ports_eth_addr[port].addr_bytes[3],
+			vmdq_ports_eth_addr[port].addr_bytes[4],
+			vmdq_ports_eth_addr[port].addr_bytes[5]);
+
+	/*
+	 * Set mac for each pool.
+	 * There is no default mac for the pools in i40.
+	 * Removes this after i40e fixes this issue.
+	 */
+	for (q = 0; q < num_pools; q++) {
+		struct ether_addr mac;
+		mac = pool_addr_template;
+		mac.addr_bytes[4] = port;
+		mac.addr_bytes[5] = q;
+		printf("Port %u vmdq pool %u set mac %02x:%02x:%02x:%02x:%02x:%02x\n",
+			port, q,
+			mac.addr_bytes[0], mac.addr_bytes[1],
+			mac.addr_bytes[2], mac.addr_bytes[3],
+			mac.addr_bytes[4], mac.addr_bytes[5]);
+		retval = rte_eth_dev_mac_addr_add(port, &mac,
+				q + vmdq_pool_base);
+		if (retval) {
+			printf("mac addr add failed at pool %d\n", q);
+			return retval;
+		}
+	}
+
+	return 0;
+}
+
+/* Check num_pools parameter and set it if OK*/
+static int
+vmdq_parse_num_pools(const char *q_arg)
+{
+	char *end = NULL;
+	int n;
+
+	/* parse number string */
+	n = strtol(q_arg, &end, 10);
+	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
+		return -1;
+
+	if (num_pools > num_vlans) {
+		printf("num_pools %d > num_vlans %d\n", num_pools, num_vlans);
+		return -1;
+	}
+
+	num_pools = n;
+
+	return 0;
+}
+
+
+static int
+parse_portmask(const char *portmask)
+{
+	char *end = NULL;
+	unsigned long pm;
+
+	/* parse hexadecimal string */
+	pm = strtoul(portmask, &end, 16);
+	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
+		return -1;
+
+	if (pm == 0)
+		return -1;
+
+	return pm;
+}
+
+/* Display usage */
+static void
+vmdq_usage(const char *prgname)
+{
+	printf("%s [EAL options] -- -p PORTMASK]\n"
+	"  --nb-pools NP: number of pools\n",
+	       prgname);
+}
+
+/*  Parse the argument (num_pools) given in the command line of the application */
+static int
+vmdq_parse_args(int argc, char **argv)
+{
+	int opt;
+	int option_index;
+	unsigned i;
+	const char *prgname = argv[0];
+	static struct option long_option[] = {
+		{"nb-pools", required_argument, NULL, 0},
+		{NULL, 0, 0, 0}
+	};
+
+	/* Parse command line */
+	while ((opt = getopt_long(argc, argv, "p:", long_option,
+		&option_index)) != EOF) {
+		switch (opt) {
+		/* portmask */
+		case 'p':
+			enabled_port_mask = parse_portmask(optarg);
+			if (enabled_port_mask == 0) {
+				printf("invalid portmask\n");
+				vmdq_usage(prgname);
+				return -1;
+			}
+			break;
+		case 0:
+			if (vmdq_parse_num_pools(optarg) == -1) {
+				printf("invalid number of pools\n");
+				vmdq_usage(prgname);
+				return -1;
+			}
+			break;
+
+		default:
+			vmdq_usage(prgname);
+			return -1;
+		}
+	}
+
+	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+		if (enabled_port_mask & (1 << i))
+			ports[num_ports++] = (uint8_t)i;
+	}
+
+	if (num_ports < 2 || num_ports % 2) {
+		printf("Current enabled port number is %u,"
+			"but it should be even and at least 2\n", num_ports);
+		return -1;
+	}
+
+	return 0;
+}
+
+static void
+update_mac_address(struct rte_mbuf *m, unsigned dst_port)
+{
+	struct ether_hdr *eth;
+	void *tmp;
+
+	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+	/* 02:00:00:00:00:xx */
+	tmp = &eth->d_addr.addr_bytes[0];
+	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
+
+	/* src addr */
+	ether_addr_copy(&vmdq_ports_eth_addr[dst_port], &eth->s_addr);
+}
+
+/* When we receive a HUP signal, print out our stats */
+static void
+sighup_handler(int signum)
+{
+	unsigned q;
+	for (q = 0; q < num_queues; q++) {
+		if (q % (num_queues/num_pools) == 0)
+			printf("\nPool %u: ", q/(num_queues/num_pools));
+		printf("%lu ", rxPackets[q]);
+	}
+	printf("\nFinished handling signal %d\n", signum);
+}
+
+/*
+ * Main thread that does the work, reading from INPUT_PORT
+ * and writing to OUTPUT_PORT
+ */
+static int
+lcore_main(__attribute__((__unused__)) void *dummy)
+{
+	const uint16_t lcore_id = (uint16_t)rte_lcore_id();
+	const uint16_t num_cores = (uint16_t)rte_lcore_count();
+	uint16_t core_id = 0;
+	uint16_t startQueue, endQueue;
+	uint16_t q, i, p;
+	const uint16_t remainder = (uint16_t)(num_vmdq_queues % num_cores);
+
+	for (i = 0; i < num_cores; i++)
+		if (lcore_ids[i] == lcore_id) {
+			core_id = i;
+			break;
+		}
+
+	if (remainder != 0) {
+		if (core_id < remainder) {
+			startQueue = (uint16_t)(core_id *
+					(num_vmdq_queues / num_cores + 1));
+			endQueue = (uint16_t)(startQueue +
+					(num_vmdq_queues / num_cores) + 1);
+		} else {
+			startQueue = (uint16_t)(core_id *
+					(num_vmdq_queues / num_cores) +
+					remainder);
+			endQueue = (uint16_t)(startQueue +
+					(num_vmdq_queues / num_cores));
+		}
+	} else {
+		startQueue = (uint16_t)(core_id *
+				(num_vmdq_queues / num_cores));
+		endQueue = (uint16_t)(startQueue +
+				(num_vmdq_queues / num_cores));
+	}
+
+	/* vmdq queue idx doesn't always start from zero.*/
+	startQueue += vmdq_queue_base;
+	endQueue   += vmdq_queue_base;
+	printf("core %u(lcore %u) reading queues %i-%i\n", (unsigned)core_id,
+		(unsigned)lcore_id, startQueue, endQueue - 1);
+
+	if (startQueue == endQueue) {
+		printf("lcore %u has nothing to do\n", lcore_id);
+		return 0;
+	}
+
+	for (;;) {
+		struct rte_mbuf *buf[MAX_PKT_BURST];
+		const uint16_t buf_size = sizeof(buf) / sizeof(buf[0]);
+
+		for (p = 0; p < num_ports; p++) {
+			const uint8_t sport = ports[p];
+			/* 0 <-> 1, 2 <-> 3 etc */
+			const uint8_t dport = ports[p ^ 1];
+			if ((sport == INVALID_PORT_ID) || (dport == INVALID_PORT_ID))
+				continue;
+
+			for (q = startQueue; q < endQueue; q++) {
+				const uint16_t rxCount = rte_eth_rx_burst(sport,
+					q, buf, buf_size);
+
+				if (unlikely(rxCount == 0))
+					continue;
+
+				rxPackets[q] += rxCount;
+
+				for (i = 0; i < rxCount; i++)
+					update_mac_address(buf[i], dport);
+
+				const uint16_t txCount = rte_eth_tx_burst(dport,
+					vmdq_queue_base + core_id,
+					buf,
+					rxCount);
+
+				if (txCount != rxCount) {
+					for (i = txCount; i < rxCount; i++)
+						rte_pktmbuf_free(buf[i]);
+				}
+			}
+		}
+	}
+}
+
+/*
+ * Update the global var NUM_PORTS and array PORTS according to system ports number
+ * and return valid ports number
+ */
+static unsigned check_ports_num(unsigned nb_ports)
+{
+	unsigned valid_num_ports = num_ports;
+	unsigned portid;
+
+	if (num_ports > nb_ports) {
+		printf("\nSpecified port number(%u) exceeds total system port number(%u)\n",
+			num_ports, nb_ports);
+		num_ports = nb_ports;
+	}
+
+	for (portid = 0; portid < num_ports; portid++) {
+		if (ports[portid] >= nb_ports) {
+			printf("\nSpecified port ID(%u) exceeds max system port ID(%u)\n",
+				ports[portid], (nb_ports - 1));
+			ports[portid] = INVALID_PORT_ID;
+			valid_num_ports--;
+		}
+	}
+	return valid_num_ports;
+}
+
+/* Main function, does initialisation and calls the per-lcore functions */
+int
+main(int argc, char *argv[])
+{
+	struct rte_mempool *mbuf_pool;
+	unsigned lcore_id, core_id = 0;
+	int ret;
+	unsigned nb_ports, valid_num_ports;
+	uint8_t portid;
+
+	signal(SIGHUP, sighup_handler);
+
+	/* init EAL */
+	ret = rte_eal_init(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
+	argc -= ret;
+	argv += ret;
+
+	/* parse app arguments */
+	ret = vmdq_parse_args(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid VMDQ argument\n");
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++)
+		if (rte_lcore_is_enabled(lcore_id))
+			lcore_ids[core_id++] = lcore_id;
+
+	if (rte_lcore_count() > RTE_MAX_LCORE)
+		rte_exit(EXIT_FAILURE, "Not enough cores\n");
+
+	nb_ports = rte_eth_dev_count();
+	if (nb_ports > RTE_MAX_ETHPORTS)
+		nb_ports = RTE_MAX_ETHPORTS;
+
+	/*
+	 * Update the global var NUM_PORTS and global array PORTS
+	 * and get value of var VALID_NUM_PORTS according to system ports number
+	 */
+	valid_num_ports = check_ports_num(nb_ports);
+
+	if (valid_num_ports < 2 || valid_num_ports % 2) {
+		printf("Current valid ports number is %u\n", valid_num_ports);
+		rte_exit(EXIT_FAILURE, "Error with valid ports number is not even or less than 2\n");
+	}
+
+	mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL",
+		NUM_MBUFS_PER_PORT * nb_ports, MBUF_CACHE_SIZE,
+		0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
+	if (mbuf_pool == NULL)
+		rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
+
+	/* initialize all ports */
+	for (portid = 0; portid < nb_ports; portid++) {
+		/* skip ports that are not enabled */
+		if ((enabled_port_mask & (1 << portid)) == 0) {
+			printf("\nSkipping disabled port %d\n", portid);
+			continue;
+		}
+		if (port_init(portid, mbuf_pool) != 0)
+			rte_exit(EXIT_FAILURE, "Cannot initialize network ports\n");
+	}
+
+	/* call lcore_main() on every lcore */
+	rte_eal_mp_remote_launch(lcore_main, NULL, CALL_MASTER);
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		if (rte_eal_wait_lcore(lcore_id) < 0)
+			return -1;
+	}
+
+	return 0;
+}