Imported Upstream version 16.04

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

2 files changed, 876 insertions, 0 deletions

diff --git a/examples/ipv4_multicast/Makefile b/examples/ipv4_multicast/Makefile
new file mode 100644
index 00000000..44f0a3bb
--- /dev/null
+++ b/examples/ipv4_multicast/Makefile
@@ -0,0 +1,57 @@
+#   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.
+#
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+# Default target, can be overriden by command line or environment
+RTE_TARGET ?= x86_64-native-linuxapp-gcc
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = ipv4_multicast
+
+# all source are stored in SRCS-y
+SRCS-y := main.c
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+# workaround for a gcc bug with noreturn attribute
+# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
+ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
+CFLAGS_main.o += -Wno-return-type
+endif
+
+include $(RTE_SDK)/mk/rte.extapp.mk
diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
new file mode 100644
index 00000000..96b41578
--- /dev/null
+++ b/examples/ipv4_multicast/main.c
@@ -0,0 +1,819 @@
+/*-
+ *   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 <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 <rte_common.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_malloc.h>
+#include <rte_fbk_hash.h>
+#include <rte_ip.h>
+
+#define RTE_LOGTYPE_IPv4_MULTICAST RTE_LOGTYPE_USER1
+
+#define MAX_PORTS 16
+
+#define	MCAST_CLONE_PORTS	2
+#define	MCAST_CLONE_SEGS	2
+
+#define	PKT_MBUF_DATA_SIZE	RTE_MBUF_DEFAULT_BUF_SIZE
+#define	NB_PKT_MBUF	8192
+
+#define	HDR_MBUF_DATA_SIZE	(2 * RTE_PKTMBUF_HEADROOM)
+#define	NB_HDR_MBUF	(NB_PKT_MBUF * MAX_PORTS)
+
+#define	NB_CLONE_MBUF	(NB_PKT_MBUF * MCAST_CLONE_PORTS * MCAST_CLONE_SEGS * 2)
+
+/* allow max jumbo frame 9.5 KB */
+#define	JUMBO_FRAME_MAX_SIZE	0x2600
+
+#define MAX_PKT_BURST 32
+#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET	3
+
+/*
+ * Construct Ethernet multicast address from IPv4 multicast address.
+ * Citing RFC 1112, section 6.4:
+ * "An IP host group address is mapped to an Ethernet multicast address
+ * by placing the low-order 23-bits of the IP address into the low-order
+ * 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex)."
+ */
+#define	ETHER_ADDR_FOR_IPV4_MCAST(x)	\
+	(rte_cpu_to_be_64(0x01005e000000ULL | ((x) & 0x7fffff)) >> 16)
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+
+/* ethernet addresses of ports */
+static struct ether_addr ports_eth_addr[MAX_PORTS];
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask = 0;
+
+static uint8_t nb_ports = 0;
+
+static int rx_queue_per_lcore = 1;
+
+struct mbuf_table {
+	uint16_t len;
+	struct rte_mbuf *m_table[MAX_PKT_BURST];
+};
+
+#define MAX_RX_QUEUE_PER_LCORE 16
+#define MAX_TX_QUEUE_PER_PORT 16
+struct lcore_queue_conf {
+	uint64_t tx_tsc;
+	uint16_t n_rx_queue;
+	uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+	uint16_t tx_queue_id[MAX_PORTS];
+	struct mbuf_table tx_mbufs[MAX_PORTS];
+} __rte_cache_aligned;
+static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
+
+static const struct rte_eth_conf port_conf = {
+	.rxmode = {
+		.max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
+		.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    = 1, /**< Jumbo Frame Support enabled */
+		.hw_strip_crc   = 0, /**< CRC stripped by hardware */
+	},
+	.txmode = {
+		.mq_mode = ETH_MQ_TX_NONE,
+	},
+};
+
+static struct rte_mempool *packet_pool, *header_pool, *clone_pool;
+
+
+/* Multicast */
+static struct rte_fbk_hash_params mcast_hash_params = {
+	.name = "MCAST_HASH",
+	.entries = 1024,
+	.entries_per_bucket = 4,
+	.socket_id = 0,
+	.hash_func = NULL,
+	.init_val = 0,
+};
+
+struct rte_fbk_hash_table *mcast_hash = NULL;
+
+struct mcast_group_params {
+	uint32_t ip;
+	uint16_t port_mask;
+};
+
+static struct mcast_group_params mcast_group_table[] = {
+		{IPv4(224,0,0,101), 0x1},
+		{IPv4(224,0,0,102), 0x2},
+		{IPv4(224,0,0,103), 0x3},
+		{IPv4(224,0,0,104), 0x4},
+		{IPv4(224,0,0,105), 0x5},
+		{IPv4(224,0,0,106), 0x6},
+		{IPv4(224,0,0,107), 0x7},
+		{IPv4(224,0,0,108), 0x8},
+		{IPv4(224,0,0,109), 0x9},
+		{IPv4(224,0,0,110), 0xA},
+		{IPv4(224,0,0,111), 0xB},
+		{IPv4(224,0,0,112), 0xC},
+		{IPv4(224,0,0,113), 0xD},
+		{IPv4(224,0,0,114), 0xE},
+		{IPv4(224,0,0,115), 0xF},
+};
+
+#define N_MCAST_GROUPS \
+	(sizeof (mcast_group_table) / sizeof (mcast_group_table[0]))
+
+
+/* Send burst of packets on an output interface */
+static void
+send_burst(struct lcore_queue_conf *qconf, uint8_t port)
+{
+	struct rte_mbuf **m_table;
+	uint16_t n, queueid;
+	int ret;
+
+	queueid = qconf->tx_queue_id[port];
+	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
+	n = qconf->tx_mbufs[port].len;
+
+	ret = rte_eth_tx_burst(port, queueid, m_table, n);
+	while (unlikely (ret < n)) {
+		rte_pktmbuf_free(m_table[ret]);
+		ret++;
+	}
+
+	qconf->tx_mbufs[port].len = 0;
+}
+
+/* Get number of bits set. */
+static inline uint32_t
+bitcnt(uint32_t v)
+{
+	uint32_t n;
+
+	for (n = 0; v != 0; v &= v - 1, n++)
+		;
+
+	return n;
+}
+
+/**
+ * Create the output multicast packet based on the given input packet.
+ * There are two approaches for creating outgoing packet, though both
+ * are based on data zero-copy idea, they differ in few details:
+ * First one creates a clone of the input packet, e.g - walk though all
+ * segments of the input packet, and for each of them create a new packet
+ * mbuf and attach that new mbuf to the segment (refer to rte_pktmbuf_clone()
+ * for more details). Then new mbuf is allocated for the packet header
+ * and is prepended to the 'clone' mbuf.
+ * Second approach doesn't make a clone, it just increment refcnt for all
+ * input packet segments. Then it allocates new mbuf for the packet header
+ * and prepends it to the input packet.
+ * Basically first approach reuses only input packet's data, but creates
+ * it's own copy of packet's metadata. Second approach reuses both input's
+ * packet data and metadata.
+ * The advantage of first approach - is that each outgoing packet has it's
+ * own copy of metadata, so we can safely modify data pointer of the
+ * input packet. That allows us to skip creation if the output packet for
+ * the last destination port, but instead modify input packet's header inplace,
+ * e.g: for N destination ports we need to invoke mcast_out_pkt (N-1) times.
+ * The advantage of second approach - less work for each outgoing packet,
+ * e.g: we skip "clone" operation completely. Though it comes with a price -
+ * input packet's metadata has to be intact. So for N destination ports we
+ * need to invoke mcast_out_pkt N times.
+ * So for small number of outgoing ports (and segments in the input packet)
+ * first approach will be faster.
+ * As number of outgoing ports (and/or input segments) will grow,
+ * second way will become more preferable.
+ *
+ *  @param pkt
+ *  Input packet mbuf.
+ *  @param use_clone
+ *  Control which of the two approaches described above should be used:
+ *  - 0 - use second approach:
+ *    Don't "clone" input packet.
+ *    Prepend new header directly to the input packet
+ *  - 1 - use first approach:
+ *    Make a "clone" of input packet first.
+ *    Prepend new header to the clone of the input packet
+ *  @return
+ *  - The pointer to the new outgoing packet.
+ *  - NULL if operation failed.
+ */
+static inline struct rte_mbuf *
+mcast_out_pkt(struct rte_mbuf *pkt, int use_clone)
+{
+	struct rte_mbuf *hdr;
+
+	/* Create new mbuf for the header. */
+	if (unlikely ((hdr = rte_pktmbuf_alloc(header_pool)) == NULL))
+		return NULL;
+
+	/* If requested, then make a new clone packet. */
+	if (use_clone != 0 &&
+	    unlikely ((pkt = rte_pktmbuf_clone(pkt, clone_pool)) == NULL)) {
+		rte_pktmbuf_free(hdr);
+		return NULL;
+	}
+
+	/* prepend new header */
+	hdr->next = pkt;
+
+
+	/* update header's fields */
+	hdr->pkt_len = (uint16_t)(hdr->data_len + pkt->pkt_len);
+	hdr->nb_segs = (uint8_t)(pkt->nb_segs + 1);
+
+	/* copy metadata from source packet*/
+	hdr->port = pkt->port;
+	hdr->vlan_tci = pkt->vlan_tci;
+	hdr->vlan_tci_outer = pkt->vlan_tci_outer;
+	hdr->tx_offload = pkt->tx_offload;
+	hdr->hash = pkt->hash;
+
+	hdr->ol_flags = pkt->ol_flags;
+
+	__rte_mbuf_sanity_check(hdr, 1);
+	return hdr;
+}
+
+/*
+ * Write new Ethernet header to the outgoing packet,
+ * and put it into the outgoing queue for the given port.
+ */
+static inline void
+mcast_send_pkt(struct rte_mbuf *pkt, struct ether_addr *dest_addr,
+		struct lcore_queue_conf *qconf, uint8_t port)
+{
+	struct ether_hdr *ethdr;
+	uint16_t len;
+
+	/* Construct Ethernet header. */
+	ethdr = (struct ether_hdr *)rte_pktmbuf_prepend(pkt, (uint16_t)sizeof(*ethdr));
+	RTE_MBUF_ASSERT(ethdr != NULL);
+
+	ether_addr_copy(dest_addr, &ethdr->d_addr);
+	ether_addr_copy(&ports_eth_addr[port], &ethdr->s_addr);
+	ethdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4);
+
+	/* Put new packet into the output queue */
+	len = qconf->tx_mbufs[port].len;
+	qconf->tx_mbufs[port].m_table[len] = pkt;
+	qconf->tx_mbufs[port].len = ++len;
+
+	/* Transmit packets */
+	if (unlikely(MAX_PKT_BURST == len))
+		send_burst(qconf, port);
+}
+
+/* Multicast forward of the input packet */
+static inline void
+mcast_forward(struct rte_mbuf *m, struct lcore_queue_conf *qconf)
+{
+	struct rte_mbuf *mc;
+	struct ipv4_hdr *iphdr;
+	uint32_t dest_addr, port_mask, port_num, use_clone;
+	int32_t hash;
+	uint8_t port;
+	union {
+		uint64_t as_int;
+		struct ether_addr as_addr;
+	} dst_eth_addr;
+
+	/* Remove the Ethernet header from the input packet */
+	iphdr = (struct ipv4_hdr *)rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr));
+	RTE_MBUF_ASSERT(iphdr != NULL);
+
+	dest_addr = rte_be_to_cpu_32(iphdr->dst_addr);
+
+	/*
+	 * Check that it is a valid multicast address and
+	 * we have some active ports assigned to it.
+	 */
+	if(!IS_IPV4_MCAST(dest_addr) ||
+	    (hash = rte_fbk_hash_lookup(mcast_hash, dest_addr)) <= 0 ||
+	    (port_mask = hash & enabled_port_mask) == 0) {
+		rte_pktmbuf_free(m);
+		return;
+	}
+
+	/* Calculate number of destination ports. */
+	port_num = bitcnt(port_mask);
+
+	/* Should we use rte_pktmbuf_clone() or not. */
+	use_clone = (port_num <= MCAST_CLONE_PORTS &&
+	    m->nb_segs <= MCAST_CLONE_SEGS);
+
+	/* Mark all packet's segments as referenced port_num times */
+	if (use_clone == 0)
+		rte_pktmbuf_refcnt_update(m, (uint16_t)port_num);
+
+	/* construct destination ethernet address */
+	dst_eth_addr.as_int = ETHER_ADDR_FOR_IPV4_MCAST(dest_addr);
+
+	for (port = 0; use_clone != port_mask; port_mask >>= 1, port++) {
+
+		/* Prepare output packet and send it out. */
+		if ((port_mask & 1) != 0) {
+			if (likely ((mc = mcast_out_pkt(m, use_clone)) != NULL))
+				mcast_send_pkt(mc, &dst_eth_addr.as_addr,
+						qconf, port);
+			else if (use_clone == 0)
+				rte_pktmbuf_free(m);
+		}
+	}
+
+	/*
+	 * If we making clone packets, then, for the last destination port,
+	 * we can overwrite input packet's metadata.
+	 */
+	if (use_clone != 0)
+		mcast_send_pkt(m, &dst_eth_addr.as_addr, qconf, port);
+	else
+		rte_pktmbuf_free(m);
+}
+
+/* Send burst of outgoing packet, if timeout expires. */
+static inline void
+send_timeout_burst(struct lcore_queue_conf *qconf)
+{
+	uint64_t cur_tsc;
+	uint8_t portid;
+	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+
+	cur_tsc = rte_rdtsc();
+	if (likely (cur_tsc < qconf->tx_tsc + drain_tsc))
+		return;
+
+	for (portid = 0; portid < MAX_PORTS; portid++) {
+		if (qconf->tx_mbufs[portid].len != 0)
+			send_burst(qconf, portid);
+	}
+	qconf->tx_tsc = cur_tsc;
+}
+
+/* main processing loop */
+static int
+main_loop(__rte_unused void *dummy)
+{
+	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+	unsigned lcore_id;
+	int i, j, nb_rx;
+	uint8_t portid;
+	struct lcore_queue_conf *qconf;
+
+	lcore_id = rte_lcore_id();
+	qconf = &lcore_queue_conf[lcore_id];
+
+
+	if (qconf->n_rx_queue == 0) {
+		RTE_LOG(INFO, IPv4_MULTICAST, "lcore %u has nothing to do\n",
+		    lcore_id);
+		return 0;
+	}
+
+	RTE_LOG(INFO, IPv4_MULTICAST, "entering main loop on lcore %u\n",
+	    lcore_id);
+
+	for (i = 0; i < qconf->n_rx_queue; i++) {
+
+		portid = qconf->rx_queue_list[i];
+		RTE_LOG(INFO, IPv4_MULTICAST, " -- lcoreid=%u portid=%d\n",
+		    lcore_id, (int) portid);
+	}
+
+	while (1) {
+
+		/*
+		 * Read packet from RX queues
+		 */
+		for (i = 0; i < qconf->n_rx_queue; i++) {
+
+			portid = qconf->rx_queue_list[i];
+			nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
+						 MAX_PKT_BURST);
+
+			/* Prefetch first packets */
+			for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+				rte_prefetch0(rte_pktmbuf_mtod(
+						pkts_burst[j], void *));
+			}
+
+			/* Prefetch and forward already prefetched packets */
+			for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+				rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+						j + PREFETCH_OFFSET], void *));
+				mcast_forward(pkts_burst[j], qconf);
+			}
+
+			/* Forward remaining prefetched packets */
+			for (; j < nb_rx; j++) {
+				mcast_forward(pkts_burst[j], qconf);
+			}
+		}
+
+		/* Send out packets from TX queues */
+		send_timeout_burst(qconf);
+	}
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
+	    "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
+	    "  -q NQ: number of queue (=ports) per lcore (default is 1)\n",
+	    prgname);
+}
+
+static uint32_t
+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 0;
+
+	return (uint32_t)pm;
+}
+
+static int
+parse_nqueue(const char *q_arg)
+{
+	char *end = NULL;
+	unsigned long n;
+
+	/* parse numerical string */
+	errno = 0;
+	n = strtoul(q_arg, &end, 0);
+	if (errno != 0 || end == NULL || *end != '\0' ||
+			n == 0 || n >= MAX_RX_QUEUE_PER_LCORE)
+		return -1;
+
+	return n;
+}
+
+/* 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[] = {
+		{NULL, 0, 0, 0}
+	};
+
+	argvopt = argv;
+
+	while ((opt = getopt_long(argc, argvopt, "p:q:",
+				  lgopts, &option_index)) != EOF) {
+
+		switch (opt) {
+		/* portmask */
+		case 'p':
+			enabled_port_mask = parse_portmask(optarg);
+			if (enabled_port_mask == 0) {
+				printf("invalid portmask\n");
+				print_usage(prgname);
+				return -1;
+			}
+			break;
+
+		/* nqueue */
+		case 'q':
+			rx_queue_per_lcore = parse_nqueue(optarg);
+			if (rx_queue_per_lcore < 0) {
+				printf("invalid queue number\n");
+				print_usage(prgname);
+				return -1;
+			}
+			break;
+
+		default:
+			print_usage(prgname);
+			return -1;
+		}
+	}
+
+	if (optind >= 0)
+		argv[optind-1] = prgname;
+
+	ret = optind-1;
+	optind = 0; /* reset getopt lib */
+	return ret;
+}
+
+static void
+print_ethaddr(const char *name, 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_mcast_hash(void)
+{
+	uint32_t i;
+
+	mcast_hash_params.socket_id = rte_socket_id();
+	mcast_hash = rte_fbk_hash_create(&mcast_hash_params);
+	if (mcast_hash == NULL){
+		return -1;
+	}
+
+	for (i = 0; i < N_MCAST_GROUPS; i ++){
+		if (rte_fbk_hash_add_key(mcast_hash,
+			mcast_group_table[i].ip,
+			mcast_group_table[i].port_mask) < 0) {
+			return -1;
+		}
+	}
+
+	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++) {
+		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"));
+				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");
+		}
+	}
+}
+
+int
+main(int argc, char **argv)
+{
+	struct lcore_queue_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
+	int ret;
+	uint16_t queueid;
+	unsigned lcore_id = 0, rx_lcore_id = 0;
+	uint32_t n_tx_queue, nb_lcores;
+	uint8_t portid;
+
+	/* init EAL */
+	ret = rte_eal_init(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
+	argc -= ret;
+	argv += ret;
+
+	/* parse application arguments (after the EAL ones) */
+	ret = parse_args(argc, argv);
+	if (ret < 0)
+		rte_exit(EXIT_FAILURE, "Invalid IPV4_MULTICAST parameters\n");
+
+	/* create the mbuf pools */
+	packet_pool = rte_pktmbuf_pool_create("packet_pool", NB_PKT_MBUF, 32,
+		0, PKT_MBUF_DATA_SIZE, rte_socket_id());
+
+	if (packet_pool == NULL)
+		rte_exit(EXIT_FAILURE, "Cannot init packet mbuf pool\n");
+
+	header_pool = rte_pktmbuf_pool_create("header_pool", NB_HDR_MBUF, 32,
+		0, HDR_MBUF_DATA_SIZE, rte_socket_id());
+
+	if (header_pool == NULL)
+		rte_exit(EXIT_FAILURE, "Cannot init header mbuf pool\n");
+
+	clone_pool = rte_pktmbuf_pool_create("clone_pool", NB_CLONE_MBUF, 32,
+		0, 0, rte_socket_id());
+
+	if (clone_pool == NULL)
+		rte_exit(EXIT_FAILURE, "Cannot init clone mbuf pool\n");
+
+	nb_ports = rte_eth_dev_count();
+	if (nb_ports == 0)
+		rte_exit(EXIT_FAILURE, "No physical ports!\n");
+	if (nb_ports > MAX_PORTS)
+		nb_ports = MAX_PORTS;
+
+	nb_lcores = rte_lcore_count();
+
+	/* initialize all ports */
+	for (portid = 0; portid < nb_ports; portid++) {
+		/* skip ports that are not enabled */
+		if ((enabled_port_mask & (1 << portid)) == 0) {
+			printf("Skipping disabled port %d\n", portid);
+			continue;
+		}
+
+		qconf = &lcore_queue_conf[rx_lcore_id];
+
+		/* get the lcore_id for this port */
+		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
+		       qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
+
+			rx_lcore_id ++;
+			qconf = &lcore_queue_conf[rx_lcore_id];
+
+			if (rx_lcore_id >= RTE_MAX_LCORE)
+				rte_exit(EXIT_FAILURE, "Not enough cores\n");
+		}
+		qconf->rx_queue_list[qconf->n_rx_queue] = portid;
+		qconf->n_rx_queue++;
+
+		/* init port */
+		printf("Initializing port %d on lcore %u... ", portid,
+		       rx_lcore_id);
+		fflush(stdout);
+
+		n_tx_queue = nb_lcores;
+		if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
+			n_tx_queue = MAX_TX_QUEUE_PER_PORT;
+		ret = rte_eth_dev_configure(portid, 1, (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(", ");
+
+		/* init one RX queue */
+		queueid = 0;
+		printf("rxq=%hu ", queueid);
+		fflush(stdout);
+		ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+					     rte_eth_dev_socket_id(portid),
+					     NULL,
+					     packet_pool);
+		if (ret < 0)
+			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, port=%d\n",
+				  ret, portid);
+
+		/* init one TX queue per couple (lcore,port) */
+		queueid = 0;
+
+		RTE_LCORE_FOREACH(lcore_id) {
+			if (rte_lcore_is_enabled(lcore_id) == 0)
+				continue;
+			printf("txq=%u,%hu ", lcore_id, queueid);
+			fflush(stdout);
+
+			rte_eth_dev_info_get(portid, &dev_info);
+			txconf = &dev_info.default_txconf;
+			txconf->txq_flags = 0;
+			ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+						     rte_lcore_to_socket_id(lcore_id), txconf);
+			if (ret < 0)
+				rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
+					  "port=%d\n", ret, portid);
+
+			qconf = &lcore_queue_conf[lcore_id];
+			qconf->tx_queue_id[portid] = queueid;
+			queueid++;
+		}
+
+		/* 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);
+
+		printf("done:\n");
+	}
+
+	check_all_ports_link_status(nb_ports, enabled_port_mask);
+
+	/* initialize the multicast hash */
+	int retval = init_mcast_hash();
+	if (retval != 0)
+		rte_exit(EXIT_FAILURE, "Cannot build the multicast hash\n");
+
+	/* launch per-lcore init on every lcore */
+	rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+		if (rte_eal_wait_lcore(lcore_id) < 0)
+			return -1;
+	}
+
+	return 0;
+}