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diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#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_tailq.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_hash_crc.h>
+#include <rte_fbk_hash.h>
+#include <rte_ip.h>
+
+#include "main.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_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+#define NB_PKT_MBUF 8192
+
+#define HDR_MBUF_SIZE (sizeof(struct rte_mbuf) + 2 * RTE_PKTMBUF_HEADROOM)
+#define NB_HDR_MBUF (NB_PKT_MBUF * MAX_PORTS)
+
+#define CLONE_MBUF_SIZE (sizeof(struct rte_mbuf))
+#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
+
+/*
+ * RX and TX Prefetch, Host, and Write-back threshold values should be
+ * carefully set for optimal performance. Consult the network
+ * controller's datasheet and supporting DPDK documentation for guidance
+ * on how these parameters should be set.
+ */
+#define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
+#define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
+#define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
+
+/*
+ * These default values are optimized for use with the Intel(R) 82599 10 GbE
+ * Controller and the DPDK ixgbe PMD. Consider using other values for other
+ * network controllers and/or network drivers.
+ */
+#define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
+#define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
+#define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
+
+#define MAX_PKT_BURST 32
+#define BURST_TX_DRAIN 200000ULL /* around 100us at 2 Ghz */
+
+#define SOCKET0 0
+
+/* 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 = {
+ },
+};
+
+static const struct rte_eth_rxconf rx_conf = {
+ .rx_thresh = {
+ .pthresh = RX_PTHRESH,
+ .hthresh = RX_HTHRESH,
+ .wthresh = RX_WTHRESH,
+ },
+};
+
+static const struct rte_eth_txconf tx_conf = {
+ .tx_thresh = {
+ .pthresh = TX_PTHRESH,
+ .hthresh = TX_HTHRESH,
+ .wthresh = TX_WTHRESH,
+ },
+ .tx_free_thresh = 0, /* Use PMD default values */
+ .tx_rs_thresh = 0, /* Use PMD default values */
+};
+
+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 = SOCKET0,
+ .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->pkt.next = pkt;
+
+
+ /* update header's fields */
+ hdr->pkt.pkt_len = (uint16_t)(hdr->pkt.data_len + pkt->pkt.pkt_len);
+ hdr->pkt.nb_segs = (uint8_t)(pkt->pkt.nb_segs + 1);
+
+ /* copy metadata from source packet*/
+ hdr->pkt.in_port = pkt->pkt.in_port;
+ hdr->pkt.vlan_tci = pkt->pkt.vlan_tci;
+ hdr->pkt.l2_len = pkt->pkt.l2_len;
+ hdr->pkt.l3_len = pkt->pkt.l3_len;
+ hdr->pkt.hash = pkt->pkt.hash;
+
+ hdr->ol_flags = pkt->ol_flags;
+
+ __rte_mbuf_sanity_check(hdr, RTE_MBUF_PKT, 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->pkt.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;
+
+ cur_tsc = rte_rdtsc();
+ if (likely (cur_tsc < qconf->tx_tsc + BURST_TX_DRAIN))
+ 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 __attribute__((noreturn)) int
+main_loop(__rte_unused void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ uint32_t 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);
+ while(1);
+ }
+
+ 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)
+{
+ printf("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
+ eth_addr->addr_bytes[0],
+ eth_addr->addr_bytes[1],
+ eth_addr->addr_bytes[2],
+ eth_addr->addr_bytes[3],
+ eth_addr->addr_bytes[4],
+ eth_addr->addr_bytes[5]);
+}
+
+static int
+init_mcast_hash(void)
+{
+ uint32_t i;
+
+ 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;
+}
+
+int
+MAIN(int argc, char **argv)
+{
+ struct lcore_queue_conf *qconf;
+ struct rte_eth_link link;
+ 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_mempool_create("packet_pool", NB_PKT_MBUF,
+ PKT_MBUF_SIZE, 32, sizeof(struct rte_pktmbuf_pool_private),
+ rte_pktmbuf_pool_init, NULL, rte_pktmbuf_init, NULL,
+ SOCKET0, 0);
+
+ if (packet_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot init packet mbuf pool\n");
+
+ header_pool = rte_mempool_create("header_pool", NB_HDR_MBUF,
+ HDR_MBUF_SIZE, 32, 0, NULL, NULL, rte_pktmbuf_init, NULL,
+ SOCKET0, 0);
+
+ if (header_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot init header mbuf pool\n");
+
+ clone_pool = rte_mempool_create("clone_pool", NB_CLONE_MBUF,
+ CLONE_MBUF_SIZE, 32, 0, NULL, NULL, rte_pktmbuf_init, NULL,
+ SOCKET0, 0);
+
+ if (clone_pool == NULL)
+ rte_exit(EXIT_FAILURE, "Cannot init clone mbuf pool\n");
+
+ /* init driver */
+#ifdef RTE_LIBRTE_IGB_PMD
+ if (rte_igb_pmd_init() < 0)
+ rte_exit(EXIT_FAILURE, "Cannot init igb pmd\n");
+#endif
+#ifdef RTE_LIBRTE_IXGBE_PMD
+ if (rte_ixgbe_pmd_init() < 0)
+ rte_exit(EXIT_FAILURE, "Cannot init ixgbe pmd\n");
+#endif
+
+ if (rte_eal_pci_probe() < 0)
+ rte_exit(EXIT_FAILURE, "Cannot probe PCI\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,
+ SOCKET0, &rx_conf,
+ 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);
+ ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+ SOCKET0, &tx_conf);
+ 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: ");
+
+ /* get link status */
+ rte_eth_link_get(portid, &link);
+ if (link.link_status) {
+ printf(" Link Up - speed %u Mbps - %s\n",
+ (uint32_t) link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ rte_eth_promiscuous_enable(portid);
+ rte_eth_allmulticast_enable(portid);
+ } else {
+ printf(" Link Down\n");
+ }
+ }
+
+
+ /* 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;
+}