Imported Upstream version 16.04

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

1 files changed, 1055 insertions, 0 deletions

diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
new file mode 100644
index 00000000..bf6d8856
--- /dev/null
+++ b/examples/l3fwd/main.c
@@ -0,0 +1,1055 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2016 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 <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <signal.h>
+#include <stdbool.h>
+
+#include <rte_common.h>
+#include <rte_vect.h>
+#include <rte_byteorder.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_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_string_fns.h>
+#include <rte_cpuflags.h>
+
+#include <cmdline_parse.h>
+#include <cmdline_parse_etheraddr.h>
+
+#include "l3fwd.h"
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+
+#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
+#define MAX_RX_QUEUE_PER_PORT 128
+
+#define MAX_LCORE_PARAMS 1024
+
+/* Static global variables used within this file. */
+static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+
+/**< Ports set in promiscuous mode off by default. */
+static int promiscuous_on;
+
+/* Select Longest-Prefix or Exact match. */
+static int l3fwd_lpm_on;
+static int l3fwd_em_on;
+
+static int numa_on = 1; /**< NUMA is enabled by default. */
+static int parse_ptype; /**< Parse packet type using rx callback, and */
+			/**< disabled by default */
+
+/* Global variables. */
+
+volatile bool force_quit;
+
+/* ethernet addresses of ports */
+uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
+struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+xmm_t val_eth[RTE_MAX_ETHPORTS];
+
+/* mask of enabled ports */
+uint32_t enabled_port_mask;
+
+/* Used only in exact match mode. */
+int ipv6; /**< ipv6 is false by default. */
+uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
+
+struct lcore_conf lcore_conf[RTE_MAX_LCORE];
+
+struct lcore_params {
+	uint8_t port_id;
+	uint8_t queue_id;
+	uint8_t lcore_id;
+} __rte_cache_aligned;
+
+static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+static struct lcore_params lcore_params_array_default[] = {
+	{0, 0, 2},
+	{0, 1, 2},
+	{0, 2, 2},
+	{1, 0, 2},
+	{1, 1, 2},
+	{1, 2, 2},
+	{2, 0, 2},
+	{3, 0, 3},
+	{3, 1, 3},
+};
+
+static struct lcore_params * lcore_params = lcore_params_array_default;
+static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
+				sizeof(lcore_params_array_default[0]);
+
+static struct rte_eth_conf port_conf = {
+	.rxmode = {
+		.mq_mode = ETH_MQ_RX_RSS,
+		.max_rx_pkt_len = ETHER_MAX_LEN,
+		.split_hdr_size = 0,
+		.header_split   = 0, /**< Header Split disabled */
+		.hw_ip_checksum = 1, /**< IP checksum offload enabled */
+		.hw_vlan_filter = 0, /**< VLAN filtering disabled */
+		.jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
+		.hw_strip_crc   = 0, /**< CRC stripped by hardware */
+	},
+	.rx_adv_conf = {
+		.rss_conf = {
+			.rss_key = NULL,
+			.rss_hf = ETH_RSS_IP,
+		},
+	},
+	.txmode = {
+		.mq_mode = ETH_MQ_TX_NONE,
+	},
+};
+
+static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
+
+struct l3fwd_lkp_mode {
+	void  (*setup)(int);
+	int   (*check_ptype)(int);
+	rte_rx_callback_fn cb_parse_ptype;
+	int   (*main_loop)(void *);
+	void* (*get_ipv4_lookup_struct)(int);
+	void* (*get_ipv6_lookup_struct)(int);
+};
+
+static struct l3fwd_lkp_mode l3fwd_lkp;
+
+static struct l3fwd_lkp_mode l3fwd_em_lkp = {
+	.setup                  = setup_hash,
+	.check_ptype		= em_check_ptype,
+	.cb_parse_ptype		= em_cb_parse_ptype,
+	.main_loop              = em_main_loop,
+	.get_ipv4_lookup_struct = em_get_ipv4_l3fwd_lookup_struct,
+	.get_ipv6_lookup_struct = em_get_ipv6_l3fwd_lookup_struct,
+};
+
+static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
+	.setup                  = setup_lpm,
+	.check_ptype		= lpm_check_ptype,
+	.cb_parse_ptype		= lpm_cb_parse_ptype,
+	.main_loop              = lpm_main_loop,
+	.get_ipv4_lookup_struct = lpm_get_ipv4_l3fwd_lookup_struct,
+	.get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
+};
+
+/*
+ * Setup lookup methods for forwarding.
+ * Currently exact-match and longest-prefix-match
+ * are supported ones.
+ */
+static void
+setup_l3fwd_lookup_tables(void)
+{
+	/* Setup HASH lookup functions. */
+	if (l3fwd_em_on)
+		l3fwd_lkp = l3fwd_em_lkp;
+	/* Setup LPM lookup functions. */
+	else
+		l3fwd_lkp = l3fwd_lpm_lkp;
+}
+
+static int
+check_lcore_params(void)
+{
+	uint8_t queue, lcore;
+	uint16_t i;
+	int socketid;
+
+	for (i = 0; i < nb_lcore_params; ++i) {
+		queue = lcore_params[i].queue_id;
+		if (queue >= MAX_RX_QUEUE_PER_PORT) {
+			printf("invalid queue number: %hhu\n", queue);
+			return -1;
+		}
+		lcore = lcore_params[i].lcore_id;
+		if (!rte_lcore_is_enabled(lcore)) {
+			printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
+			return -1;
+		}
+		if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
+			(numa_on == 0)) {
+			printf("warning: lcore %hhu is on socket %d with numa off \n",
+				lcore, socketid);
+		}
+	}
+	return 0;
+}
+
+static int
+check_port_config(const unsigned nb_ports)
+{
+	unsigned portid;
+	uint16_t i;
+
+	for (i = 0; i < nb_lcore_params; ++i) {
+		portid = lcore_params[i].port_id;
+		if ((enabled_port_mask & (1 << portid)) == 0) {
+			printf("port %u is not enabled in port mask\n", portid);
+			return -1;
+		}
+		if (portid >= nb_ports) {
+			printf("port %u is not present on the board\n", portid);
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static uint8_t
+get_port_n_rx_queues(const uint8_t port)
+{
+	int queue = -1;
+	uint16_t i;
+
+	for (i = 0; i < nb_lcore_params; ++i) {
+		if (lcore_params[i].port_id == port) {
+			if (lcore_params[i].queue_id == queue+1)
+				queue = lcore_params[i].queue_id;
+			else
+				rte_exit(EXIT_FAILURE, "queue ids of the port %d must be"
+						" in sequence and must start with 0\n",
+						lcore_params[i].port_id);
+		}
+	}
+	return (uint8_t)(++queue);
+}
+
+static int
+init_lcore_rx_queues(void)
+{
+	uint16_t i, nb_rx_queue;
+	uint8_t lcore;
+
+	for (i = 0; i < nb_lcore_params; ++i) {
+		lcore = lcore_params[i].lcore_id;
+		nb_rx_queue = lcore_conf[lcore].n_rx_queue;
+		if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
+			printf("error: too many queues (%u) for lcore: %u\n",
+				(unsigned)nb_rx_queue + 1, (unsigned)lcore);
+			return -1;
+		} else {
+			lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
+				lcore_params[i].port_id;
+			lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
+				lcore_params[i].queue_id;
+			lcore_conf[lcore].n_rx_queue++;
+		}
+	}
+	return 0;
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+	printf ("%s [EAL options] -- -p PORTMASK -P"
+		"  [--config (port,queue,lcore)[,(port,queue,lcore]]"
+		"  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
+		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
+		"  -P : enable promiscuous mode\n"
+		"  -E : enable exact match\n"
+		"  -L : enable longest prefix match\n"
+		"  --config (port,queue,lcore): rx queues configuration\n"
+		"  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
+		"  --no-numa: optional, disable numa awareness\n"
+		"  --ipv6: optional, specify it if running ipv6 packets\n"
+		"  --enable-jumbo: enable jumbo frame"
+		" which max packet len is PKTLEN in decimal (64-9600)\n"
+		"  --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n",
+		prgname);
+}
+
+static int
+parse_max_pkt_len(const char *pktlen)
+{
+	char *end = NULL;
+	unsigned long len;
+
+	/* parse decimal string */
+	len = strtoul(pktlen, &end, 10);
+	if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
+		return -1;
+
+	if (len == 0)
+		return -1;
+
+	return len;
+}
+
+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;
+}
+
+static int
+parse_hash_entry_number(const char *hash_entry_num)
+{
+	char *end = NULL;
+	unsigned long hash_en;
+	/* parse hexadecimal string */
+	hash_en = strtoul(hash_entry_num, &end, 16);
+	if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
+		return -1;
+
+	if (hash_en == 0)
+		return -1;
+
+	return hash_en;
+}
+
+static int
+parse_config(const char *q_arg)
+{
+	char s[256];
+	const char *p, *p0 = q_arg;
+	char *end;
+	enum fieldnames {
+		FLD_PORT = 0,
+		FLD_QUEUE,
+		FLD_LCORE,
+		_NUM_FLD
+	};
+	unsigned long int_fld[_NUM_FLD];
+	char *str_fld[_NUM_FLD];
+	int i;
+	unsigned size;
+
+	nb_lcore_params = 0;
+
+	while ((p = strchr(p0,'(')) != NULL) {
+		++p;
+		if((p0 = strchr(p,')')) == NULL)
+			return -1;
+
+		size = p0 - p;
+		if(size >= sizeof(s))
+			return -1;
+
+		snprintf(s, sizeof(s), "%.*s", size, p);
+		if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
+			return -1;
+		for (i = 0; i < _NUM_FLD; i++){
+			errno = 0;
+			int_fld[i] = strtoul(str_fld[i], &end, 0);
+			if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
+				return -1;
+		}
+		if (nb_lcore_params >= MAX_LCORE_PARAMS) {
+			printf("exceeded max number of lcore params: %hu\n",
+				nb_lcore_params);
+			return -1;
+		}
+		lcore_params_array[nb_lcore_params].port_id =
+			(uint8_t)int_fld[FLD_PORT];
+		lcore_params_array[nb_lcore_params].queue_id =
+			(uint8_t)int_fld[FLD_QUEUE];
+		lcore_params_array[nb_lcore_params].lcore_id =
+			(uint8_t)int_fld[FLD_LCORE];
+		++nb_lcore_params;
+	}
+	lcore_params = lcore_params_array;
+	return 0;
+}
+
+static void
+parse_eth_dest(const char *optarg)
+{
+	uint8_t portid;
+	char *port_end;
+	uint8_t c, *dest, peer_addr[6];
+
+	errno = 0;
+	portid = strtoul(optarg, &port_end, 10);
+	if (errno != 0 || port_end == optarg || *port_end++ != ',')
+		rte_exit(EXIT_FAILURE,
+		"Invalid eth-dest: %s", optarg);
+	if (portid >= RTE_MAX_ETHPORTS)
+		rte_exit(EXIT_FAILURE,
+		"eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
+		portid, RTE_MAX_ETHPORTS);
+
+	if (cmdline_parse_etheraddr(NULL, port_end,
+		&peer_addr, sizeof(peer_addr)) < 0)
+		rte_exit(EXIT_FAILURE,
+		"Invalid ethernet address: %s\n",
+		port_end);
+	dest = (uint8_t *)&dest_eth_addr[portid];
+	for (c = 0; c < 6; c++)
+		dest[c] = peer_addr[c];
+	*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
+}
+
+#define MAX_JUMBO_PKT_LEN  9600
+#define MEMPOOL_CACHE_SIZE 256
+
+#define CMD_LINE_OPT_CONFIG "config"
+#define CMD_LINE_OPT_ETH_DEST "eth-dest"
+#define CMD_LINE_OPT_NO_NUMA "no-numa"
+#define CMD_LINE_OPT_IPV6 "ipv6"
+#define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
+#define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
+#define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
+
+/*
+ * This expression is used to calculate the number of mbufs needed
+ * depending on user input, taking  into account memory for rx and
+ * tx hardware rings, cache per lcore and mtable per port per lcore.
+ * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum
+ * value of 8192
+ */
+#define NB_MBUF RTE_MAX(	\
+	(nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT +	\
+	nb_ports*nb_lcores*MAX_PKT_BURST +			\
+	nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT +		\
+	nb_lcores*MEMPOOL_CACHE_SIZE),				\
+	(unsigned)8192)
+
+/* Parse the argument given in the command line of the application */
+static int
+parse_args(int argc, char **argv)
+{
+	int opt, ret;
+	char **argvopt;
+	int option_index;
+	char *prgname = argv[0];
+	static struct option lgopts[] = {
+		{CMD_LINE_OPT_CONFIG, 1, 0, 0},
+		{CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
+		{CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
+		{CMD_LINE_OPT_IPV6, 0, 0, 0},
+		{CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
+		{CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
+		{CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
+		{NULL, 0, 0, 0}
+	};
+
+	argvopt = argv;
+
+	/* Error or normal output strings. */
+	const char *str1 = "L3FWD: Invalid portmask";
+	const char *str2 = "L3FWD: Promiscuous mode selected";
+	const char *str3 = "L3FWD: Exact match selected";
+	const char *str4 = "L3FWD: Longest-prefix match selected";
+	const char *str5 = "L3FWD: Invalid config";
+	const char *str6 = "L3FWD: NUMA is disabled";
+	const char *str7 = "L3FWD: IPV6 is specified";
+	const char *str8 =
+		"L3FWD: Jumbo frame is enabled - disabling simple TX path";
+	const char *str9 = "L3FWD: Invalid packet length";
+	const char *str10 = "L3FWD: Set jumbo frame max packet len to ";
+	const char *str11 = "L3FWD: Invalid hash entry number";
+	const char *str12 =
+		"L3FWD: LPM and EM are mutually exclusive, select only one";
+	const char *str13 = "L3FWD: LPM or EM none selected, default LPM on";
+
+	while ((opt = getopt_long(argc, argvopt, "p:PLE",
+				lgopts, &option_index)) != EOF) {
+
+		switch (opt) {
+		/* portmask */
+		case 'p':
+			enabled_port_mask = parse_portmask(optarg);
+			if (enabled_port_mask == 0) {
+				printf("%s\n", str1);
+				print_usage(prgname);
+				return -1;
+			}
+			break;
+		case 'P':
+			printf("%s\n", str2);
+			promiscuous_on = 1;
+			break;
+
+		case 'E':
+			printf("%s\n", str3);
+			l3fwd_em_on = 1;
+			break;
+
+		case 'L':
+			printf("%s\n", str4);
+			l3fwd_lpm_on = 1;
+			break;
+
+		/* long options */
+		case 0:
+			if (!strncmp(lgopts[option_index].name,
+					CMD_LINE_OPT_CONFIG,
+					sizeof(CMD_LINE_OPT_CONFIG))) {
+
+				ret = parse_config(optarg);
+				if (ret) {
+					printf("%s\n", str5);
+					print_usage(prgname);
+					return -1;
+				}
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+					CMD_LINE_OPT_ETH_DEST,
+					sizeof(CMD_LINE_OPT_ETH_DEST))) {
+					parse_eth_dest(optarg);
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+					CMD_LINE_OPT_NO_NUMA,
+					sizeof(CMD_LINE_OPT_NO_NUMA))) {
+				printf("%s\n", str6);
+				numa_on = 0;
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+				CMD_LINE_OPT_IPV6,
+				sizeof(CMD_LINE_OPT_IPV6))) {
+				printf("%sn", str7);
+				ipv6 = 1;
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+					CMD_LINE_OPT_ENABLE_JUMBO,
+					sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
+				struct option lenopts = {
+					"max-pkt-len", required_argument, 0, 0
+				};
+
+				printf("%s\n", str8);
+				port_conf.rxmode.jumbo_frame = 1;
+
+				/*
+				 * if no max-pkt-len set, use the default
+				 * value ETHER_MAX_LEN.
+				 */
+				if (0 == getopt_long(argc, argvopt, "",
+						&lenopts, &option_index)) {
+					ret = parse_max_pkt_len(optarg);
+					if ((ret < 64) ||
+						(ret > MAX_JUMBO_PKT_LEN)) {
+						printf("%s\n", str9);
+						print_usage(prgname);
+						return -1;
+					}
+					port_conf.rxmode.max_rx_pkt_len = ret;
+				}
+				printf("%s %u\n", str10,
+				(unsigned int)port_conf.rxmode.max_rx_pkt_len);
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+				CMD_LINE_OPT_HASH_ENTRY_NUM,
+				sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
+
+				ret = parse_hash_entry_number(optarg);
+				if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
+					hash_entry_number = ret;
+				} else {
+					printf("%s\n", str11);
+					print_usage(prgname);
+					return -1;
+				}
+			}
+
+			if (!strncmp(lgopts[option_index].name,
+				     CMD_LINE_OPT_PARSE_PTYPE,
+				     sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
+				printf("soft parse-ptype is enabled\n");
+				parse_ptype = 1;
+			}
+
+			break;
+
+		default:
+			print_usage(prgname);
+			return -1;
+		}
+	}
+
+	/* If both LPM and EM are selected, return error. */
+	if (l3fwd_lpm_on && l3fwd_em_on) {
+		printf("%s\n", str12);
+		return -1;
+	}
+
+	/*
+	 * Nothing is selected, pick longest-prefix match
+	 * as default match.
+	 */
+	if (!l3fwd_lpm_on && !l3fwd_em_on) {
+		l3fwd_lpm_on = 1;
+		printf("%s\n", str13);
+	}
+
+	/*
+	 * ipv6 and hash flags are valid only for
+	 * exact macth, reset them to default for
+	 * longest-prefix match.
+	 */
+	if (l3fwd_lpm_on) {
+		ipv6 = 0;
+		hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
+	}
+
+	if (optind >= 0)
+		argv[optind-1] = prgname;
+
+	ret = optind-1;
+	optind = 0; /* reset getopt lib */
+	return ret;
+}
+
+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_mem(unsigned nb_mbuf)
+{
+	struct lcore_conf *qconf;
+	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;
+
+		if (numa_on)
+			socketid = rte_lcore_to_socket_id(lcore_id);
+		else
+			socketid = 0;
+
+		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 (pktmbuf_pool[socketid] == NULL) {
+			snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
+			pktmbuf_pool[socketid] =
+				rte_pktmbuf_pool_create(s, nb_mbuf,
+					MEMPOOL_CACHE_SIZE, 0,
+					RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
+			if (pktmbuf_pool[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);
+
+			/* Setup either LPM or EM(f.e Hash).  */
+			l3fwd_lkp.setup(socketid);
+		}
+		qconf = &lcore_conf[lcore_id];
+		qconf->ipv4_lookup_struct =
+			l3fwd_lkp.get_ipv4_lookup_struct(socketid);
+		qconf->ipv6_lookup_struct =
+			l3fwd_lkp.get_ipv6_lookup_struct(socketid);
+	}
+	return 0;
+}
+
+/* Check the link status of all ports in up to 9s, 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 90 /* 9s (90 * 100ms) in total */
+	uint8_t portid, count, all_ports_up, print_flag = 0;
+	struct rte_eth_link link;
+
+	printf("\nChecking link status");
+	fflush(stdout);
+	for (count = 0; count <= MAX_CHECK_TIME; count++) {
+		if (force_quit)
+			return;
+		all_ports_up = 1;
+		for (portid = 0; portid < port_num; portid++) {
+			if (force_quit)
+				return;
+			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"));
+				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) {
+			printf(".");
+			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;
+			printf("done\n");
+		}
+	}
+}
+
+static void
+signal_handler(int signum)
+{
+	if (signum == SIGINT || signum == SIGTERM) {
+		printf("\n\nSignal %d received, preparing to exit...\n",
+				signum);
+		force_quit = true;
+	}
+}
+
+static int
+prepare_ptype_parser(uint8_t portid, uint16_t queueid)
+{
+	if (parse_ptype) {
+		printf("Port %d: softly parse packet type info\n", portid);
+		if (rte_eth_add_rx_callback(portid, queueid,
+					    l3fwd_lkp.cb_parse_ptype,
+					    NULL))
+			return 1;
+
+		printf("Failed to add rx callback: port=%d\n", portid);
+		return 0;
+	}
+
+	if (l3fwd_lkp.check_ptype(portid))
+		return 1;
+
+	printf("port %d cannot parse packet type, please add --%s\n",
+	       portid, CMD_LINE_OPT_PARSE_PTYPE);
+	return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+	struct lcore_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
+	int ret;
+	unsigned nb_ports;
+	uint16_t queueid;
+	unsigned lcore_id;
+	uint32_t n_tx_queue, nb_lcores;
+	uint8_t portid, nb_rx_queue, queue, socketid;
+
+	/* init EAL */
+	ret = rte_eal_init(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
+	argc -= ret;
+	argv += ret;
+
+	force_quit = false;
+	signal(SIGINT, signal_handler);
+	signal(SIGTERM, signal_handler);
+
+	/* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
+	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+		dest_eth_addr[portid] =
+			ETHER_LOCAL_ADMIN_ADDR + ((uint64_t)portid << 40);
+		*(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
+	}
+
+	/* parse application arguments (after the EAL ones) */
+	ret = parse_args(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
+
+	if (check_lcore_params() < 0)
+		rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
+
+	ret = init_lcore_rx_queues();
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
+
+	nb_ports = rte_eth_dev_count();
+	if (nb_ports > RTE_MAX_ETHPORTS)
+		nb_ports = RTE_MAX_ETHPORTS;
+
+	if (check_port_config(nb_ports) < 0)
+		rte_exit(EXIT_FAILURE, "check_port_config failed\n");
+
+	nb_lcores = rte_lcore_count();
+
+	/* Setup function pointers for lookup method. */
+	setup_l3fwd_lookup_tables();
+
+	/* 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;
+		}
+
+		/* init port */
+		printf("Initializing port %d ... ", portid );
+		fflush(stdout);
+
+		nb_rx_queue = get_port_n_rx_queues(portid);
+		n_tx_queue = nb_lcores;
+		if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
+			n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+		printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
+			nb_rx_queue, (unsigned)n_tx_queue );
+		ret = rte_eth_dev_configure(portid, nb_rx_queue,
+					(uint16_t)n_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]);
+		print_ethaddr(" Address:", &ports_eth_addr[portid]);
+		printf(", ");
+		print_ethaddr("Destination:",
+			(const struct ether_addr *)&dest_eth_addr[portid]);
+		printf(", ");
+
+		/*
+		 * prepare src MACs for each port.
+		 */
+		ether_addr_copy(&ports_eth_addr[portid],
+			(struct ether_addr *)(val_eth + portid) + 1);
+
+		/* init memory */
+		ret = init_mem(NB_MBUF);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE, "init_mem failed\n");
+
+		/* init one TX queue per couple (lcore,port) */
+		queueid = 0;
+		for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+			if (rte_lcore_is_enabled(lcore_id) == 0)
+				continue;
+
+			if (numa_on)
+				socketid =
+				(uint8_t)rte_lcore_to_socket_id(lcore_id);
+			else
+				socketid = 0;
+
+			printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
+			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			if (port_conf.rxmode.jumbo_frame)
+				txconf->txq_flags = 0;
+			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+						     socketid, txconf);
+			if (ret < 0)
+				rte_exit(EXIT_FAILURE,
+					"rte_eth_tx_queue_setup: err=%d, "
+					"port=%d\n", ret, portid);
+
+			qconf = &lcore_conf[lcore_id];
+			qconf->tx_queue_id[portid] = queueid;
+			queueid++;
+
+			qconf->tx_port_id[qconf->n_tx_port] = portid;
+			qconf->n_tx_port++;
+		}
+		printf("\n");
+	}
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		if (rte_lcore_is_enabled(lcore_id) == 0)
+			continue;
+		qconf = &lcore_conf[lcore_id];
+		printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
+		fflush(stdout);
+		/* init RX queues */
+		for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
+			portid = qconf->rx_queue_list[queue].port_id;
+			queueid = qconf->rx_queue_list[queue].queue_id;
+
+			if (numa_on)
+				socketid =
+				(uint8_t)rte_lcore_to_socket_id(lcore_id);
+			else
+				socketid = 0;
+
+			printf("rxq=%d,%d,%d ", portid, queueid, socketid);
+			fflush(stdout);
+
+			ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+					socketid,
+					NULL,
+					pktmbuf_pool[socketid]);
+			if (ret < 0)
+				rte_exit(EXIT_FAILURE,
+				"rte_eth_rx_queue_setup: err=%d, port=%d\n",
+				ret, portid);
+		}
+	}
+
+	printf("\n");
+
+	/* start ports */
+	for (portid = 0; portid < nb_ports; portid++) {
+		if ((enabled_port_mask & (1 << portid)) == 0) {
+			continue;
+		}
+		/* Start device */
+		ret = rte_eth_dev_start(portid);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE,
+				"rte_eth_dev_start: err=%d, port=%d\n",
+				ret, portid);
+
+		/*
+		 * If enabled, put device in promiscuous mode.
+		 * This allows IO forwarding mode to forward packets
+		 * to itself through 2 cross-connected  ports of the
+		 * target machine.
+		 */
+		if (promiscuous_on)
+			rte_eth_promiscuous_enable(portid);
+	}
+
+	printf("\n");
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		if (rte_lcore_is_enabled(lcore_id) == 0)
+			continue;
+		qconf = &lcore_conf[lcore_id];
+		for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
+			portid = qconf->rx_queue_list[queue].port_id;
+			queueid = qconf->rx_queue_list[queue].queue_id;
+			if (prepare_ptype_parser(portid, queueid) == 0)
+				rte_exit(EXIT_FAILURE, "ptype check fails\n");
+		}
+	}
+
+
+	check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
+	ret = 0;
+	/* launch per-lcore init on every lcore */
+	rte_eal_mp_remote_launch(l3fwd_lkp.main_loop, NULL, CALL_MASTER);
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		if (rte_eal_wait_lcore(lcore_id) < 0) {
+			ret = -1;
+			break;
+		}
+	}
+
+	/* stop ports */
+	for (portid = 0; portid < nb_ports; portid++) {
+		if ((enabled_port_mask & (1 << portid)) == 0)
+			continue;
+		printf("Closing port %d...", portid);
+		rte_eth_dev_stop(portid);
+		rte_eth_dev_close(portid);
+		printf(" Done\n");
+	}
+	printf("Bye...\n");
+
+	return ret;
+}