Imported Upstream version 16.04

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

1 files changed, 1185 insertions, 0 deletions

diff --git a/examples/ip_reassembly/main.c b/examples/ip_reassembly/main.c
new file mode 100644
index 00000000..c27e7353
--- /dev/null
+++ b/examples/ip_reassembly/main.c
@@ -0,0 +1,1185 @@
+/*-
+ *   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 <signal.h>
+#include <sys/param.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_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_string_fns.h>
+#include <rte_lpm.h>
+#include <rte_lpm6.h>
+
+#include <rte_ip_frag.h>
+
+#define MAX_PKT_BURST 32
+
+
+#define RTE_LOGTYPE_IP_RSMBL RTE_LOGTYPE_USER1
+
+#define MAX_JUMBO_PKT_LEN  9600
+
+#define	BUF_SIZE	RTE_MBUF_DEFAULT_DATAROOM
+#define MBUF_SIZE	\
+	(BUF_SIZE + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+#define NB_MBUF 8192
+
+/* allow max jumbo frame 9.5 KB */
+#define JUMBO_FRAME_MAX_SIZE	0x2600
+
+#define	MAX_FLOW_NUM	UINT16_MAX
+#define	MIN_FLOW_NUM	1
+#define	DEF_FLOW_NUM	0x1000
+
+/* TTL numbers are in ms. */
+#define	MAX_FLOW_TTL	(3600 * MS_PER_S)
+#define	MIN_FLOW_TTL	1
+#define	DEF_FLOW_TTL	MS_PER_S
+
+#define MAX_FRAG_NUM RTE_LIBRTE_IP_FRAG_MAX_FRAG
+
+/* Should be power of two. */
+#define	IP_FRAG_TBL_BUCKET_ENTRIES	16
+
+static uint32_t max_flow_num = DEF_FLOW_NUM;
+static uint32_t max_flow_ttl = DEF_FLOW_TTL;
+
+#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+
+#define NB_SOCKETS 8
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET	3
+
+/*
+ * 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[RTE_MAX_ETHPORTS];
+
+#ifndef IPv4_BYTES
+#define IPv4_BYTES_FMT "%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8
+#define IPv4_BYTES(addr) \
+		(uint8_t) (((addr) >> 24) & 0xFF),\
+		(uint8_t) (((addr) >> 16) & 0xFF),\
+		(uint8_t) (((addr) >> 8) & 0xFF),\
+		(uint8_t) ((addr) & 0xFF)
+#endif
+
+#ifndef IPv6_BYTES
+#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
+                       "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
+#define IPv6_BYTES(addr) \
+	addr[0],  addr[1], addr[2],  addr[3], \
+	addr[4],  addr[5], addr[6],  addr[7], \
+	addr[8],  addr[9], addr[10], addr[11],\
+	addr[12], addr[13],addr[14], addr[15]
+#endif
+
+#define IPV6_ADDR_LEN 16
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask = 0;
+
+static int rx_queue_per_lcore = 1;
+
+struct mbuf_table {
+	uint32_t len;
+	uint32_t head;
+	uint32_t tail;
+	struct rte_mbuf *m_table[0];
+};
+
+struct rx_queue {
+	struct rte_ip_frag_tbl *frag_tbl;
+	struct rte_mempool *pool;
+	struct rte_lpm *lpm;
+	struct rte_lpm6 *lpm6;
+	uint8_t portid;
+};
+
+struct tx_lcore_stat {
+	uint64_t call;
+	uint64_t drop;
+	uint64_t queue;
+	uint64_t send;
+};
+
+#define MAX_RX_QUEUE_PER_LCORE 16
+#define MAX_TX_QUEUE_PER_PORT 16
+#define MAX_RX_QUEUE_PER_PORT 128
+
+struct lcore_queue_conf {
+	uint16_t n_rx_queue;
+	struct rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+	uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+	struct rte_ip_frag_death_row death_row;
+	struct mbuf_table *tx_mbufs[RTE_MAX_ETHPORTS];
+	struct tx_lcore_stat tx_stat;
+} __rte_cache_aligned;
+static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
+
+static struct rte_eth_conf port_conf = {
+	.rxmode = {
+		.mq_mode        = ETH_MQ_RX_RSS,
+		.max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
+		.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    = 1, /**< 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,
+	},
+};
+
+/*
+ * IPv4 forwarding table
+ */
+struct l3fwd_ipv4_route {
+	uint32_t ip;
+	uint8_t  depth;
+	uint8_t  if_out;
+};
+
+struct l3fwd_ipv4_route l3fwd_ipv4_route_array[] = {
+		{IPv4(100,10,0,0), 16, 0},
+		{IPv4(100,20,0,0), 16, 1},
+		{IPv4(100,30,0,0), 16, 2},
+		{IPv4(100,40,0,0), 16, 3},
+		{IPv4(100,50,0,0), 16, 4},
+		{IPv4(100,60,0,0), 16, 5},
+		{IPv4(100,70,0,0), 16, 6},
+		{IPv4(100,80,0,0), 16, 7},
+};
+
+/*
+ * IPv6 forwarding table
+ */
+
+struct l3fwd_ipv6_route {
+	uint8_t ip[IPV6_ADDR_LEN];
+	uint8_t depth;
+	uint8_t if_out;
+};
+
+static struct l3fwd_ipv6_route l3fwd_ipv6_route_array[] = {
+	{{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 0},
+	{{2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 1},
+	{{3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 2},
+	{{4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 3},
+	{{5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 4},
+	{{6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 5},
+	{{7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 6},
+	{{8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, 7},
+};
+
+#define LPM_MAX_RULES         1024
+#define LPM6_MAX_RULES         1024
+#define LPM6_NUMBER_TBL8S (1 << 16)
+
+struct rte_lpm6_config lpm6_config = {
+		.max_rules = LPM6_MAX_RULES,
+		.number_tbl8s = LPM6_NUMBER_TBL8S,
+		.flags = 0
+};
+
+static struct rte_lpm *socket_lpm[RTE_MAX_NUMA_NODES];
+static struct rte_lpm6 *socket_lpm6[RTE_MAX_NUMA_NODES];
+
+#ifdef RTE_LIBRTE_IP_FRAG_TBL_STAT
+#define TX_LCORE_STAT_UPDATE(s, f, v)   ((s)->f += (v))
+#else
+#define TX_LCORE_STAT_UPDATE(s, f, v)   do {} while (0)
+#endif /* RTE_LIBRTE_IP_FRAG_TBL_STAT */
+
+/*
+ * If number of queued packets reached given threahold, then
+ * send burst of packets on an output interface.
+ */
+static inline uint32_t
+send_burst(struct lcore_queue_conf *qconf, uint32_t thresh, uint8_t port)
+{
+	uint32_t fill, len, k, n;
+	struct mbuf_table *txmb;
+
+	txmb = qconf->tx_mbufs[port];
+	len = txmb->len;
+
+	if ((int32_t)(fill = txmb->head - txmb->tail) < 0)
+		fill += len;
+
+	if (fill >= thresh) {
+		n = RTE_MIN(len - txmb->tail, fill);
+
+		k = rte_eth_tx_burst(port, qconf->tx_queue_id[port],
+			txmb->m_table + txmb->tail, (uint16_t)n);
+
+		TX_LCORE_STAT_UPDATE(&qconf->tx_stat, call, 1);
+		TX_LCORE_STAT_UPDATE(&qconf->tx_stat, send, k);
+
+		fill -= k;
+		if ((txmb->tail += k) == len)
+			txmb->tail = 0;
+	}
+
+	return fill;
+}
+
+/* Enqueue a single packet, and send burst if queue is filled */
+static inline int
+send_single_packet(struct rte_mbuf *m, uint8_t port)
+{
+	uint32_t fill, lcore_id, len;
+	struct lcore_queue_conf *qconf;
+	struct mbuf_table *txmb;
+
+	lcore_id = rte_lcore_id();
+	qconf = &lcore_queue_conf[lcore_id];
+
+	txmb = qconf->tx_mbufs[port];
+	len = txmb->len;
+
+	fill = send_burst(qconf, MAX_PKT_BURST, port);
+
+	if (fill == len - 1) {
+		TX_LCORE_STAT_UPDATE(&qconf->tx_stat, drop, 1);
+		rte_pktmbuf_free(txmb->m_table[txmb->tail]);
+		if (++txmb->tail == len)
+			txmb->tail = 0;
+	}
+
+	TX_LCORE_STAT_UPDATE(&qconf->tx_stat, queue, 1);
+	txmb->m_table[txmb->head] = m;
+	if(++txmb->head == len)
+		txmb->head = 0;
+
+	return 0;
+}
+
+static inline void
+reassemble(struct rte_mbuf *m, uint8_t portid, uint32_t queue,
+	struct lcore_queue_conf *qconf, uint64_t tms)
+{
+	struct ether_hdr *eth_hdr;
+	struct rte_ip_frag_tbl *tbl;
+	struct rte_ip_frag_death_row *dr;
+	struct rx_queue *rxq;
+	void *d_addr_bytes;
+	uint32_t next_hop_ipv4;
+	uint8_t next_hop_ipv6, dst_port;
+
+	rxq = &qconf->rx_queue_list[queue];
+
+	eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+	dst_port = portid;
+
+	/* if packet is IPv4 */
+	if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
+		struct ipv4_hdr *ip_hdr;
+		uint32_t ip_dst;
+
+		ip_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+
+		 /* if it is a fragmented packet, then try to reassemble. */
+		if (rte_ipv4_frag_pkt_is_fragmented(ip_hdr)) {
+			struct rte_mbuf *mo;
+
+			tbl = rxq->frag_tbl;
+			dr = &qconf->death_row;
+
+			/* prepare mbuf: setup l2_len/l3_len. */
+			m->l2_len = sizeof(*eth_hdr);
+			m->l3_len = sizeof(*ip_hdr);
+
+			/* process this fragment. */
+			mo = rte_ipv4_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr);
+			if (mo == NULL)
+				/* no packet to send out. */
+				return;
+
+			/* we have our packet reassembled. */
+			if (mo != m) {
+				m = mo;
+				eth_hdr = rte_pktmbuf_mtod(m,
+					struct ether_hdr *);
+				ip_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
+			}
+		}
+		ip_dst = rte_be_to_cpu_32(ip_hdr->dst_addr);
+
+		/* Find destination port */
+		if (rte_lpm_lookup(rxq->lpm, ip_dst, &next_hop_ipv4) == 0 &&
+				(enabled_port_mask & 1 << next_hop_ipv4) != 0) {
+			dst_port = next_hop_ipv4;
+		}
+
+		eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4);
+	} else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
+		/* if packet is IPv6 */
+		struct ipv6_extension_fragment *frag_hdr;
+		struct ipv6_hdr *ip_hdr;
+
+		ip_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
+
+		frag_hdr = rte_ipv6_frag_get_ipv6_fragment_header(ip_hdr);
+
+		if (frag_hdr != NULL) {
+			struct rte_mbuf *mo;
+
+			tbl = rxq->frag_tbl;
+			dr  = &qconf->death_row;
+
+			/* prepare mbuf: setup l2_len/l3_len. */
+			m->l2_len = sizeof(*eth_hdr);
+			m->l3_len = sizeof(*ip_hdr) + sizeof(*frag_hdr);
+
+			mo = rte_ipv6_frag_reassemble_packet(tbl, dr, m, tms, ip_hdr, frag_hdr);
+			if (mo == NULL)
+				return;
+
+			if (mo != m) {
+				m = mo;
+				eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+				ip_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
+			}
+		}
+
+		/* Find destination port */
+		if (rte_lpm6_lookup(rxq->lpm6, ip_hdr->dst_addr, &next_hop_ipv6) == 0 &&
+				(enabled_port_mask & 1 << next_hop_ipv6) != 0) {
+			dst_port = next_hop_ipv6;
+		}
+
+		eth_hdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv6);
+	}
+	/* if packet wasn't IPv4 or IPv6, it's forwarded to the port it came from */
+
+	/* 02:00:00:00:00:xx */
+	d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
+	*((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40);
+
+	/* src addr */
+	ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
+
+	send_single_packet(m, dst_port);
+}
+
+/* main processing loop */
+static int
+main_loop(__attribute__((unused)) void *dummy)
+{
+	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+	unsigned lcore_id;
+	uint64_t diff_tsc, cur_tsc, prev_tsc;
+	int i, j, nb_rx;
+	uint8_t portid;
+	struct lcore_queue_conf *qconf;
+	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+
+	prev_tsc = 0;
+
+	lcore_id = rte_lcore_id();
+	qconf = &lcore_queue_conf[lcore_id];
+
+	if (qconf->n_rx_queue == 0) {
+		RTE_LOG(INFO, IP_RSMBL, "lcore %u has nothing to do\n", lcore_id);
+		return 0;
+	}
+
+	RTE_LOG(INFO, IP_RSMBL, "entering main loop on lcore %u\n", lcore_id);
+
+	for (i = 0; i < qconf->n_rx_queue; i++) {
+
+		portid = qconf->rx_queue_list[i].portid;
+		RTE_LOG(INFO, IP_RSMBL, " -- lcoreid=%u portid=%hhu\n", lcore_id,
+			portid);
+	}
+
+	while (1) {
+
+		cur_tsc = rte_rdtsc();
+
+		/*
+		 * TX burst queue drain
+		 */
+		diff_tsc = cur_tsc - prev_tsc;
+		if (unlikely(diff_tsc > drain_tsc)) {
+
+			/*
+			 * This could be optimized (use queueid instead of
+			 * portid), but it is not called so often
+			 */
+			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
+				if ((enabled_port_mask & (1 << portid)) != 0)
+					send_burst(qconf, 1, portid);
+			}
+
+			prev_tsc = cur_tsc;
+		}
+
+		/*
+		 * Read packet from RX queues
+		 */
+		for (i = 0; i < qconf->n_rx_queue; ++i) {
+
+			portid = qconf->rx_queue_list[i].portid;
+
+			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 *));
+				reassemble(pkts_burst[j], portid,
+					i, qconf, cur_tsc);
+			}
+
+			/* Forward remaining prefetched packets */
+			for (; j < nb_rx; j++) {
+				reassemble(pkts_burst[j], portid,
+					i, qconf, cur_tsc);
+			}
+
+			rte_ip_frag_free_death_row(&qconf->death_row,
+				PREFETCH_OFFSET);
+		}
+	}
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+	printf("%s [EAL options] -- -p PORTMASK [-q NQ]"
+		"  [--max-pkt-len PKTLEN]"
+		"  [--maxflows=<flows>]  [--flowttl=<ttl>[(s|ms)]]\n"
+		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
+		"  -q NQ: number of RX queues per lcore\n"
+		"  --maxflows=<flows>: optional, maximum number of flows "
+		"supported\n"
+		"  --flowttl=<ttl>[(s|ms)]: optional, maximum TTL for each "
+		"flow\n",
+		prgname);
+}
+
+static uint32_t
+parse_flow_num(const char *str, uint32_t min, uint32_t max, uint32_t *val)
+{
+	char *end;
+	uint64_t v;
+
+	/* parse decimal string */
+	errno = 0;
+	v = strtoul(str, &end, 10);
+	if (errno != 0 || *end != '\0')
+		return -EINVAL;
+
+	if (v < min || v > max)
+		return -EINVAL;
+
+	*val = (uint32_t)v;
+	return 0;
+}
+
+static int
+parse_flow_ttl(const char *str, uint32_t min, uint32_t max, uint32_t *val)
+{
+	char *end;
+	uint64_t v;
+
+	static const char frmt_sec[] = "s";
+	static const char frmt_msec[] = "ms";
+
+	/* parse decimal string */
+	errno = 0;
+	v = strtoul(str, &end, 10);
+	if (errno != 0)
+		return -EINVAL;
+
+	if (*end != '\0') {
+		if (strncmp(frmt_sec, end, sizeof(frmt_sec)) == 0)
+			v *= MS_PER_S;
+		else if (strncmp(frmt_msec, end, sizeof (frmt_msec)) != 0)
+			return -EINVAL;
+	}
+
+	if (v < min || v > max)
+		return -EINVAL;
+
+	*val = (uint32_t)v;
+	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;
+}
+
+static int
+parse_nqueue(const char *q_arg)
+{
+	char *end = NULL;
+	unsigned long n;
+
+	printf("%p\n", q_arg);
+
+	/* parse hexadecimal string */
+	n = strtoul(q_arg, &end, 10);
+	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
+		return -1;
+	if (n == 0)
+		return -1;
+	if (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[] = {
+		{"max-pkt-len", 1, 0, 0},
+		{"maxflows", 1, 0, 0},
+		{"flowttl", 1, 0, 0},
+		{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;
+
+		/* long options */
+		case 0:
+			if (!strncmp(lgopts[option_index].name,
+					"maxflows", 8)) {
+				if ((ret = parse_flow_num(optarg, MIN_FLOW_NUM,
+						MAX_FLOW_NUM,
+						&max_flow_num)) != 0) {
+					printf("invalid value: \"%s\" for "
+						"parameter %s\n",
+						optarg,
+						lgopts[option_index].name);
+					print_usage(prgname);
+					return ret;
+				}
+			}
+
+			if (!strncmp(lgopts[option_index].name, "flowttl", 7)) {
+				if ((ret = parse_flow_ttl(optarg, MIN_FLOW_TTL,
+						MAX_FLOW_TTL,
+						&max_flow_ttl)) != 0) {
+					printf("invalid value: \"%s\" for "
+						"parameter %s\n",
+						optarg,
+						lgopts[option_index].name);
+					print_usage(prgname);
+					return ret;
+				}
+			}
+
+			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, 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);
+}
+
+/* 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("\ndone\n");
+		}
+	}
+}
+
+static int
+init_routing_table(void)
+{
+	struct rte_lpm *lpm;
+	struct rte_lpm6 *lpm6;
+	int socket, ret;
+	unsigned i;
+
+	for (socket = 0; socket < RTE_MAX_NUMA_NODES; socket++) {
+		if (socket_lpm[socket]) {
+			lpm = socket_lpm[socket];
+			/* populate the LPM table */
+			for (i = 0; i < RTE_DIM(l3fwd_ipv4_route_array); i++) {
+				ret = rte_lpm_add(lpm,
+					l3fwd_ipv4_route_array[i].ip,
+					l3fwd_ipv4_route_array[i].depth,
+					l3fwd_ipv4_route_array[i].if_out);
+
+				if (ret < 0) {
+					RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd "
+						"LPM table\n", i);
+					return -1;
+				}
+
+				RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv4_BYTES_FMT
+						"/%d (port %d)\n",
+					socket,
+					IPv4_BYTES(l3fwd_ipv4_route_array[i].ip),
+					l3fwd_ipv4_route_array[i].depth,
+					l3fwd_ipv4_route_array[i].if_out);
+			}
+		}
+
+		if (socket_lpm6[socket]) {
+			lpm6 = socket_lpm6[socket];
+			/* populate the LPM6 table */
+			for (i = 0; i < RTE_DIM(l3fwd_ipv6_route_array); i++) {
+				ret = rte_lpm6_add(lpm6,
+					l3fwd_ipv6_route_array[i].ip,
+					l3fwd_ipv6_route_array[i].depth,
+					l3fwd_ipv6_route_array[i].if_out);
+
+				if (ret < 0) {
+					RTE_LOG(ERR, IP_RSMBL, "Unable to add entry %i to the l3fwd "
+						"LPM6 table\n", i);
+					return -1;
+				}
+
+				RTE_LOG(INFO, IP_RSMBL, "Socket %i: adding route " IPv6_BYTES_FMT
+						"/%d (port %d)\n",
+					socket,
+					IPv6_BYTES(l3fwd_ipv6_route_array[i].ip),
+					l3fwd_ipv6_route_array[i].depth,
+					l3fwd_ipv6_route_array[i].if_out);
+			}
+		}
+	}
+	return 0;
+}
+
+static int
+setup_port_tbl(struct lcore_queue_conf *qconf, uint32_t lcore, int socket,
+	uint32_t port)
+{
+	struct mbuf_table *mtb;
+	uint32_t n;
+	size_t sz;
+
+	n = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST);
+	sz = sizeof (*mtb) + sizeof (mtb->m_table[0]) *  n;
+
+	if ((mtb = rte_zmalloc_socket(__func__, sz, RTE_CACHE_LINE_SIZE,
+			socket)) == NULL) {
+		RTE_LOG(ERR, IP_RSMBL, "%s() for lcore: %u, port: %u "
+			"failed to allocate %zu bytes\n",
+			__func__, lcore, port, sz);
+		return -1;
+	}
+
+	mtb->len = n;
+	qconf->tx_mbufs[port] = mtb;
+
+	return 0;
+}
+
+static int
+setup_queue_tbl(struct rx_queue *rxq, uint32_t lcore, uint32_t queue)
+{
+	int socket;
+	uint32_t nb_mbuf;
+	uint64_t frag_cycles;
+	char buf[RTE_MEMPOOL_NAMESIZE];
+
+	socket = rte_lcore_to_socket_id(lcore);
+	if (socket == SOCKET_ID_ANY)
+		socket = 0;
+
+	frag_cycles = (rte_get_tsc_hz() + MS_PER_S - 1) / MS_PER_S *
+		max_flow_ttl;
+
+	if ((rxq->frag_tbl = rte_ip_frag_table_create(max_flow_num,
+			IP_FRAG_TBL_BUCKET_ENTRIES, max_flow_num, frag_cycles,
+			socket)) == NULL) {
+		RTE_LOG(ERR, IP_RSMBL, "ip_frag_tbl_create(%u) on "
+			"lcore: %u for queue: %u failed\n",
+			max_flow_num, lcore, queue);
+		return -1;
+	}
+
+	/*
+	 * At any given moment up to <max_flow_num * (MAX_FRAG_NUM)>
+	 * mbufs could be stored int the fragment table.
+	 * Plus, each TX queue can hold up to <max_flow_num> packets.
+	 */
+
+	nb_mbuf = RTE_MAX(max_flow_num, 2UL * MAX_PKT_BURST) * MAX_FRAG_NUM;
+	nb_mbuf *= (port_conf.rxmode.max_rx_pkt_len + BUF_SIZE - 1) / BUF_SIZE;
+	nb_mbuf *= 2; /* ipv4 and ipv6 */
+	nb_mbuf += RTE_TEST_RX_DESC_DEFAULT + RTE_TEST_TX_DESC_DEFAULT;
+
+	nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF);
+
+	snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue);
+
+	if ((rxq->pool = rte_mempool_create(buf, nb_mbuf, MBUF_SIZE, 0,
+			sizeof(struct rte_pktmbuf_pool_private),
+			rte_pktmbuf_pool_init, NULL, rte_pktmbuf_init, NULL,
+			socket, MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET)) == NULL) {
+		RTE_LOG(ERR, IP_RSMBL, "mempool_create(%s) failed", buf);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+init_mem(void)
+{
+	char buf[PATH_MAX];
+	struct rte_lpm *lpm;
+	struct rte_lpm6 *lpm6;
+	struct rte_lpm_config lpm_config;
+	int socket;
+	unsigned lcore_id;
+
+	/* traverse through lcores and initialize structures on each socket */
+
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+
+		if (rte_lcore_is_enabled(lcore_id) == 0)
+			continue;
+
+		socket = rte_lcore_to_socket_id(lcore_id);
+
+		if (socket == SOCKET_ID_ANY)
+			socket = 0;
+
+		if (socket_lpm[socket] == NULL) {
+			RTE_LOG(INFO, IP_RSMBL, "Creating LPM table on socket %i\n", socket);
+			snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket);
+
+			lpm_config.max_rules = LPM_MAX_RULES;
+			lpm_config.number_tbl8s = 256;
+			lpm_config.flags = 0;
+
+			lpm = rte_lpm_create(buf, socket, &lpm_config);
+			if (lpm == NULL) {
+				RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n");
+				return -1;
+			}
+			socket_lpm[socket] = lpm;
+		}
+
+		if (socket_lpm6[socket] == NULL) {
+			RTE_LOG(INFO, IP_RSMBL, "Creating LPM6 table on socket %i\n", socket);
+			snprintf(buf, sizeof(buf), "IP_RSMBL_LPM_%i", socket);
+
+			lpm6 = rte_lpm6_create("IP_RSMBL_LPM6", socket, &lpm6_config);
+			if (lpm6 == NULL) {
+				RTE_LOG(ERR, IP_RSMBL, "Cannot create LPM table\n");
+				return -1;
+			}
+			socket_lpm6[socket] = lpm6;
+		}
+	}
+
+	return 0;
+}
+
+static void
+queue_dump_stat(void)
+{
+	uint32_t i, lcore;
+	const struct lcore_queue_conf *qconf;
+
+	for (lcore = 0; lcore < RTE_MAX_LCORE; lcore++) {
+		if (rte_lcore_is_enabled(lcore) == 0)
+			continue;
+
+		qconf = &lcore_queue_conf[lcore];
+		for (i = 0; i < qconf->n_rx_queue; i++) {
+
+			fprintf(stdout, " -- lcoreid=%u portid=%hhu "
+				"frag tbl stat:\n",
+				lcore,  qconf->rx_queue_list[i].portid);
+			rte_ip_frag_table_statistics_dump(stdout,
+					qconf->rx_queue_list[i].frag_tbl);
+			fprintf(stdout, "TX bursts:\t%" PRIu64 "\n"
+				"TX packets _queued:\t%" PRIu64 "\n"
+				"TX packets dropped:\t%" PRIu64 "\n"
+				"TX packets send:\t%" PRIu64 "\n",
+				qconf->tx_stat.call,
+				qconf->tx_stat.queue,
+				qconf->tx_stat.drop,
+				qconf->tx_stat.send);
+		}
+	}
+}
+
+static void
+signal_handler(int signum)
+{
+	queue_dump_stat();
+	if (signum != SIGUSR1)
+		rte_exit(0, "received signal: %d, exiting\n", signum);
+}
+
+int
+main(int argc, char **argv)
+{
+	struct lcore_queue_conf *qconf;
+	struct rte_eth_dev_info dev_info;
+	struct rte_eth_txconf *txconf;
+	struct rx_queue *rxq;
+	int ret, socket;
+	unsigned nb_ports;
+	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 IP reassembly parameters\n");
+
+	nb_ports = rte_eth_dev_count();
+	if (nb_ports > RTE_MAX_ETHPORTS)
+		nb_ports = RTE_MAX_ETHPORTS;
+	else if (nb_ports == 0)
+		rte_exit(EXIT_FAILURE, "No ports found!\n");
+
+	nb_lcores = rte_lcore_count();
+
+	/* initialize structures (mempools, lpm etc.) */
+	if (init_mem() < 0)
+		rte_panic("Cannot initialize memory structures!\n");
+
+	/* check if portmask has non-existent ports */
+	if (enabled_port_mask & ~(RTE_LEN2MASK(nb_ports, unsigned)))
+		rte_exit(EXIT_FAILURE, "Non-existent ports in portmask!\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;
+		}
+
+		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++;
+			if (rx_lcore_id >= RTE_MAX_LCORE)
+				rte_exit(EXIT_FAILURE, "Not enough cores\n");
+
+			qconf = &lcore_queue_conf[rx_lcore_id];
+		}
+
+		socket = rte_lcore_to_socket_id(portid);
+		if (socket == SOCKET_ID_ANY)
+			socket = 0;
+
+		queueid = qconf->n_rx_queue;
+		rxq = &qconf->rx_queue_list[queueid];
+		rxq->portid = portid;
+		rxq->lpm = socket_lpm[socket];
+		rxq->lpm6 = socket_lpm6[socket];
+		if (setup_queue_tbl(rxq, rx_lcore_id, queueid) < 0)
+			rte_exit(EXIT_FAILURE, "Failed to set up queue table\n");
+		qconf->n_rx_queue++;
+
+		/* init port */
+		printf("Initializing port %d ... ", portid );
+		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) {
+			printf("\n");
+			rte_exit(EXIT_FAILURE, "Cannot configure device: "
+				"err=%d, port=%d\n",
+				ret, portid);
+		}
+
+		/* init one RX queue */
+		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
+					     socket, NULL,
+					     rxq->pool);
+		if (ret < 0) {
+			printf("\n");
+			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: "
+				"err=%d, port=%d\n",
+				ret, portid);
+		}
+
+		rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+		print_ethaddr(" Address:", &ports_eth_addr[portid]);
+		printf("\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;
+
+			socket = (int) rte_lcore_to_socket_id(lcore_id);
+
+			printf("txq=%u,%d,%d ", lcore_id, queueid, socket);
+			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,
+					socket, 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;
+			setup_port_tbl(qconf, lcore_id, socket, portid);
+			queueid++;
+		}
+		printf("\n");
+	}
+
+	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);
+
+		rte_eth_promiscuous_enable(portid);
+	}
+
+	if (init_routing_table() < 0)
+		rte_exit(EXIT_FAILURE, "Cannot init routing table\n");
+
+	check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
+	signal(SIGUSR1, signal_handler);
+	signal(SIGTERM, signal_handler);
+	signal(SIGINT, signal_handler);
+
+	/* 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;
+}