4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
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18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <sys/types.h>
41 #include <sys/queue.h>
46 #include <rte_common.h>
47 #include <rte_byteorder.h>
49 #include <rte_tailq.h>
50 #include <rte_memory.h>
51 #include <rte_memcpy.h>
52 #include <rte_memzone.h>
54 #include <rte_per_lcore.h>
55 #include <rte_launch.h>
56 #include <rte_atomic.h>
57 #include <rte_cycles.h>
58 #include <rte_prefetch.h>
59 #include <rte_lcore.h>
60 #include <rte_per_lcore.h>
61 #include <rte_branch_prediction.h>
62 #include <rte_interrupts.h>
64 #include <rte_random.h>
65 #include <rte_debug.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
69 #include <rte_mempool.h>
71 #include <rte_malloc.h>
72 #include <rte_hash_crc.h>
73 #include <rte_fbk_hash.h>
78 #define RTE_LOGTYPE_IPv4_MULTICAST RTE_LOGTYPE_USER1
82 #define MCAST_CLONE_PORTS 2
83 #define MCAST_CLONE_SEGS 2
85 #define PKT_MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
86 #define NB_PKT_MBUF 8192
88 #define HDR_MBUF_SIZE (sizeof(struct rte_mbuf) + 2 * RTE_PKTMBUF_HEADROOM)
89 #define NB_HDR_MBUF (NB_PKT_MBUF * MAX_PORTS)
91 #define CLONE_MBUF_SIZE (sizeof(struct rte_mbuf))
92 #define NB_CLONE_MBUF (NB_PKT_MBUF * MCAST_CLONE_PORTS * MCAST_CLONE_SEGS * 2)
94 /* allow max jumbo frame 9.5 KB */
95 #define JUMBO_FRAME_MAX_SIZE 0x2600
98 * RX and TX Prefetch, Host, and Write-back threshold values should be
99 * carefully set for optimal performance. Consult the network
100 * controller's datasheet and supporting DPDK documentation for guidance
101 * on how these parameters should be set.
103 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
104 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
105 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
108 * These default values are optimized for use with the Intel(R) 82599 10 GbE
109 * Controller and the DPDK ixgbe PMD. Consider using other values for other
110 * network controllers and/or network drivers.
112 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
113 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
114 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
116 #define MAX_PKT_BURST 32
117 #define BURST_TX_DRAIN 200000ULL /* around 100us at 2 Ghz */
121 /* Configure how many packets ahead to prefetch, when reading packets */
122 #define PREFETCH_OFFSET 3
125 * Construct Ethernet multicast address from IPv4 multicast address.
126 * Citing RFC 1112, section 6.4:
127 * "An IP host group address is mapped to an Ethernet multicast address
128 * by placing the low-order 23-bits of the IP address into the low-order
129 * 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex)."
131 #define ETHER_ADDR_FOR_IPV4_MCAST(x) \
132 (rte_cpu_to_be_64(0x01005e000000ULL | ((x) & 0x7fffff)) >> 16)
135 * Configurable number of RX/TX ring descriptors
137 #define RTE_TEST_RX_DESC_DEFAULT 128
138 #define RTE_TEST_TX_DESC_DEFAULT 512
139 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
140 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
142 /* ethernet addresses of ports */
143 static struct ether_addr ports_eth_addr[MAX_PORTS];
145 /* mask of enabled ports */
146 static uint32_t enabled_port_mask = 0;
148 static uint8_t nb_ports = 0;
150 static int rx_queue_per_lcore = 1;
154 struct rte_mbuf *m_table[MAX_PKT_BURST];
157 #define MAX_RX_QUEUE_PER_LCORE 16
158 #define MAX_TX_QUEUE_PER_PORT 16
159 struct lcore_queue_conf {
162 uint8_t rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
163 uint16_t tx_queue_id[MAX_PORTS];
164 struct mbuf_table tx_mbufs[MAX_PORTS];
165 } __rte_cache_aligned;
166 static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
168 static const struct rte_eth_conf port_conf = {
170 .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
172 .header_split = 0, /**< Header Split disabled */
173 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
174 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
175 .jumbo_frame = 1, /**< Jumbo Frame Support enabled */
176 .hw_strip_crc = 0, /**< CRC stripped by hardware */
179 .mq_mode = ETH_DCB_NONE,
183 static const struct rte_eth_rxconf rx_conf = {
185 .pthresh = RX_PTHRESH,
186 .hthresh = RX_HTHRESH,
187 .wthresh = RX_WTHRESH,
191 static const struct rte_eth_txconf tx_conf = {
193 .pthresh = TX_PTHRESH,
194 .hthresh = TX_HTHRESH,
195 .wthresh = TX_WTHRESH,
197 .tx_free_thresh = 0, /* Use PMD default values */
198 .tx_rs_thresh = 0, /* Use PMD default values */
201 static struct rte_mempool *packet_pool, *header_pool, *clone_pool;
205 static struct rte_fbk_hash_params mcast_hash_params = {
206 .name = "MCAST_HASH",
208 .entries_per_bucket = 4,
209 .socket_id = SOCKET0,
214 struct rte_fbk_hash_table *mcast_hash = NULL;
216 struct mcast_group_params {
221 static struct mcast_group_params mcast_group_table[] = {
222 {IPv4(224,0,0,101), 0x1},
223 {IPv4(224,0,0,102), 0x2},
224 {IPv4(224,0,0,103), 0x3},
225 {IPv4(224,0,0,104), 0x4},
226 {IPv4(224,0,0,105), 0x5},
227 {IPv4(224,0,0,106), 0x6},
228 {IPv4(224,0,0,107), 0x7},
229 {IPv4(224,0,0,108), 0x8},
230 {IPv4(224,0,0,109), 0x9},
231 {IPv4(224,0,0,110), 0xA},
232 {IPv4(224,0,0,111), 0xB},
233 {IPv4(224,0,0,112), 0xC},
234 {IPv4(224,0,0,113), 0xD},
235 {IPv4(224,0,0,114), 0xE},
236 {IPv4(224,0,0,115), 0xF},
239 #define N_MCAST_GROUPS \
240 (sizeof (mcast_group_table) / sizeof (mcast_group_table[0]))
243 /* Send burst of packets on an output interface */
245 send_burst(struct lcore_queue_conf *qconf, uint8_t port)
247 struct rte_mbuf **m_table;
251 queueid = qconf->tx_queue_id[port];
252 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
253 n = qconf->tx_mbufs[port].len;
255 ret = rte_eth_tx_burst(port, queueid, m_table, n);
256 while (unlikely (ret < n)) {
257 rte_pktmbuf_free(m_table[ret]);
261 qconf->tx_mbufs[port].len = 0;
264 /* Get number of bits set. */
265 static inline uint32_t
270 for (n = 0; v != 0; v &= v - 1, n++)
277 * Create the output multicast packet based on the given input packet.
278 * There are two approaches for creating outgoing packet, though both
279 * are based on data zero-copy idea, they differ in few details:
280 * First one creates a clone of the input packet, e.g - walk though all
281 * segments of the input packet, and for each of them create a new packet
282 * mbuf and attach that new mbuf to the segment (refer to rte_pktmbuf_clone()
283 * for more details). Then new mbuf is allocated for the packet header
284 * and is prepended to the 'clone' mbuf.
285 * Second approach doesn't make a clone, it just increment refcnt for all
286 * input packet segments. Then it allocates new mbuf for the packet header
287 * and prepends it to the input packet.
288 * Basically first approach reuses only input packet's data, but creates
289 * it's own copy of packet's metadata. Second approach reuses both input's
290 * packet data and metadata.
291 * The advantage of first approach - is that each outgoing packet has it's
292 * own copy of metadata, so we can safely modify data pointer of the
293 * input packet. That allows us to skip creation if the output packet for
294 * the last destination port, but instead modify input packet's header inplace,
295 * e.g: for N destination ports we need to invoke mcast_out_pkt (N-1) times.
296 * The advantage of second approach - less work for each outgoing packet,
297 * e.g: we skip "clone" operation completely. Though it comes with a price -
298 * input packet's metadata has to be intact. So for N destination ports we
299 * need to invoke mcast_out_pkt N times.
300 * So for small number of outgoing ports (and segments in the input packet)
301 * first approach will be faster.
302 * As number of outgoing ports (and/or input segments) will grow,
303 * second way will become more preferable.
308 * Control which of the two approaches described above should be used:
309 * - 0 - use second approach:
310 * Don't "clone" input packet.
311 * Prepend new header directly to the input packet
312 * - 1 - use first approach:
313 * Make a "clone" of input packet first.
314 * Prepend new header to the clone of the input packet
316 * - The pointer to the new outgoing packet.
317 * - NULL if operation failed.
319 static inline struct rte_mbuf *
320 mcast_out_pkt(struct rte_mbuf *pkt, int use_clone)
322 struct rte_mbuf *hdr;
324 /* Create new mbuf for the header. */
325 if (unlikely ((hdr = rte_pktmbuf_alloc(header_pool)) == NULL))
328 /* If requested, then make a new clone packet. */
329 if (use_clone != 0 &&
330 unlikely ((pkt = rte_pktmbuf_clone(pkt, clone_pool)) == NULL)) {
331 rte_pktmbuf_free(hdr);
335 /* prepend new header */
339 /* update header's fields */
340 hdr->pkt.pkt_len = (uint16_t)(hdr->pkt.data_len + pkt->pkt.pkt_len);
341 hdr->pkt.nb_segs = (uint8_t)(pkt->pkt.nb_segs + 1);
343 /* copy metadata from source packet*/
344 hdr->pkt.in_port = pkt->pkt.in_port;
345 hdr->pkt.vlan_macip = pkt->pkt.vlan_macip;
346 hdr->pkt.hash = pkt->pkt.hash;
348 hdr->ol_flags = pkt->ol_flags;
350 __rte_mbuf_sanity_check(hdr, RTE_MBUF_PKT, 1);
355 * Write new Ethernet header to the outgoing packet,
356 * and put it into the outgoing queue for the given port.
359 mcast_send_pkt(struct rte_mbuf *pkt, struct ether_addr *dest_addr,
360 struct lcore_queue_conf *qconf, uint8_t port)
362 struct ether_hdr *ethdr;
365 /* Construct Ethernet header. */
366 ethdr = (struct ether_hdr *)rte_pktmbuf_prepend(pkt, (uint16_t)sizeof(*ethdr));
367 RTE_MBUF_ASSERT(ethdr != NULL);
369 ether_addr_copy(dest_addr, ðdr->d_addr);
370 ether_addr_copy(&ports_eth_addr[port], ðdr->s_addr);
371 ethdr->ether_type = rte_be_to_cpu_16(ETHER_TYPE_IPv4);
373 /* Put new packet into the output queue */
374 len = qconf->tx_mbufs[port].len;
375 qconf->tx_mbufs[port].m_table[len] = pkt;
376 qconf->tx_mbufs[port].len = ++len;
378 /* Transmit packets */
379 if (unlikely(MAX_PKT_BURST == len))
380 send_burst(qconf, port);
383 /* Multicast forward of the input packet */
385 mcast_forward(struct rte_mbuf *m, struct lcore_queue_conf *qconf)
388 struct ipv4_hdr *iphdr;
389 uint32_t dest_addr, port_mask, port_num, use_clone;
394 struct ether_addr as_addr;
397 /* Remove the Ethernet header from the input packet */
398 iphdr = (struct ipv4_hdr *)rte_pktmbuf_adj(m, (uint16_t)sizeof(struct ether_hdr));
399 RTE_MBUF_ASSERT(iphdr != NULL);
401 dest_addr = rte_be_to_cpu_32(iphdr->dst_addr);
404 * Check that it is a valid multicast address and
405 * we have some active ports assigned to it.
407 if(!IS_IPV4_MCAST(dest_addr) ||
408 (hash = rte_fbk_hash_lookup(mcast_hash, dest_addr)) <= 0 ||
409 (port_mask = hash & enabled_port_mask) == 0) {
414 /* Calculate number of destination ports. */
415 port_num = bitcnt(port_mask);
417 /* Should we use rte_pktmbuf_clone() or not. */
418 use_clone = (port_num <= MCAST_CLONE_PORTS &&
419 m->pkt.nb_segs <= MCAST_CLONE_SEGS);
421 /* Mark all packet's segments as referenced port_num times */
423 rte_pktmbuf_refcnt_update(m, (uint16_t)port_num);
425 /* construct destination ethernet address */
426 dst_eth_addr.as_int = ETHER_ADDR_FOR_IPV4_MCAST(dest_addr);
428 for (port = 0; use_clone != port_mask; port_mask >>= 1, port++) {
430 /* Prepare output packet and send it out. */
431 if ((port_mask & 1) != 0) {
432 if (likely ((mc = mcast_out_pkt(m, use_clone)) != NULL))
433 mcast_send_pkt(mc, &dst_eth_addr.as_addr,
435 else if (use_clone == 0)
441 * If we making clone packets, then, for the last destination port,
442 * we can overwrite input packet's metadata.
445 mcast_send_pkt(m, &dst_eth_addr.as_addr, qconf, port);
450 /* Send burst of outgoing packet, if timeout expires. */
452 send_timeout_burst(struct lcore_queue_conf *qconf)
457 cur_tsc = rte_rdtsc();
458 if (likely (cur_tsc < qconf->tx_tsc + BURST_TX_DRAIN))
461 for (portid = 0; portid < MAX_PORTS; portid++) {
462 if (qconf->tx_mbufs[portid].len != 0)
463 send_burst(qconf, portid);
465 qconf->tx_tsc = cur_tsc;
468 /* main processing loop */
469 static __attribute__((noreturn)) int
470 main_loop(__rte_unused void *dummy)
472 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
476 struct lcore_queue_conf *qconf;
478 lcore_id = rte_lcore_id();
479 qconf = &lcore_queue_conf[lcore_id];
482 if (qconf->n_rx_queue == 0) {
483 RTE_LOG(INFO, IPv4_MULTICAST, "lcore %u has nothing to do\n",
488 RTE_LOG(INFO, IPv4_MULTICAST, "entering main loop on lcore %u\n",
491 for (i = 0; i < qconf->n_rx_queue; i++) {
493 portid = qconf->rx_queue_list[i];
494 RTE_LOG(INFO, IPv4_MULTICAST, " -- lcoreid=%u portid=%d\n",
495 lcore_id, (int) portid);
501 * Read packet from RX queues
503 for (i = 0; i < qconf->n_rx_queue; i++) {
505 portid = qconf->rx_queue_list[i];
506 nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
509 /* Prefetch first packets */
510 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
511 rte_prefetch0(rte_pktmbuf_mtod(
512 pkts_burst[j], void *));
515 /* Prefetch and forward already prefetched packets */
516 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
517 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
518 j + PREFETCH_OFFSET], void *));
519 mcast_forward(pkts_burst[j], qconf);
522 /* Forward remaining prefetched packets */
523 for (; j < nb_rx; j++) {
524 mcast_forward(pkts_burst[j], qconf);
528 /* Send out packets from TX queues */
529 send_timeout_burst(qconf);
535 print_usage(const char *prgname)
537 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
538 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
539 " -q NQ: number of queue (=ports) per lcore (default is 1)\n",
544 parse_portmask(const char *portmask)
549 /* parse hexadecimal string */
550 pm = strtoul(portmask, &end, 16);
551 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
554 return ((uint32_t)pm);
558 parse_nqueue(const char *q_arg)
563 /* parse numerical string */
565 n = strtoul(q_arg, &end, 0);
566 if (errno != 0 || end == NULL || *end != '\0' ||
567 n == 0 || n >= MAX_RX_QUEUE_PER_LCORE)
573 /* Parse the argument given in the command line of the application */
575 parse_args(int argc, char **argv)
580 char *prgname = argv[0];
581 static struct option lgopts[] = {
587 while ((opt = getopt_long(argc, argvopt, "p:q:",
588 lgopts, &option_index)) != EOF) {
593 enabled_port_mask = parse_portmask(optarg);
594 if (enabled_port_mask == 0) {
595 printf("invalid portmask\n");
596 print_usage(prgname);
603 rx_queue_per_lcore = parse_nqueue(optarg);
604 if (rx_queue_per_lcore < 0) {
605 printf("invalid queue number\n");
606 print_usage(prgname);
612 print_usage(prgname);
618 argv[optind-1] = prgname;
621 optind = 0; /* reset getopt lib */
626 print_ethaddr(const char *name, struct ether_addr *eth_addr)
628 printf("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
629 eth_addr->addr_bytes[0],
630 eth_addr->addr_bytes[1],
631 eth_addr->addr_bytes[2],
632 eth_addr->addr_bytes[3],
633 eth_addr->addr_bytes[4],
634 eth_addr->addr_bytes[5]);
638 init_mcast_hash(void)
642 mcast_hash = rte_fbk_hash_create(&mcast_hash_params);
643 if (mcast_hash == NULL){
647 for (i = 0; i < N_MCAST_GROUPS; i ++){
648 if (rte_fbk_hash_add_key(mcast_hash,
649 mcast_group_table[i].ip,
650 mcast_group_table[i].port_mask) < 0) {
659 MAIN(int argc, char **argv)
661 struct lcore_queue_conf *qconf;
662 struct rte_eth_link link;
665 unsigned lcore_id = 0, rx_lcore_id = 0;;
666 uint32_t n_tx_queue, nb_lcores;
670 ret = rte_eal_init(argc, argv);
672 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
676 /* parse application arguments (after the EAL ones) */
677 ret = parse_args(argc, argv);
679 rte_exit(EXIT_FAILURE, "Invalid IPV4_MULTICAST parameters\n");
681 /* create the mbuf pools */
682 packet_pool = rte_mempool_create("packet_pool", NB_PKT_MBUF,
683 PKT_MBUF_SIZE, 32, sizeof(struct rte_pktmbuf_pool_private),
684 rte_pktmbuf_pool_init, NULL, rte_pktmbuf_init, NULL,
687 if (packet_pool == NULL)
688 rte_exit(EXIT_FAILURE, "Cannot init packet mbuf pool\n");
690 header_pool = rte_mempool_create("header_pool", NB_HDR_MBUF,
691 HDR_MBUF_SIZE, 32, 0, NULL, NULL, rte_pktmbuf_init, NULL,
694 if (header_pool == NULL)
695 rte_exit(EXIT_FAILURE, "Cannot init header mbuf pool\n");
697 clone_pool = rte_mempool_create("clone_pool", NB_CLONE_MBUF,
698 CLONE_MBUF_SIZE, 32, 0, NULL, NULL, rte_pktmbuf_init, NULL,
701 if (clone_pool == NULL)
702 rte_exit(EXIT_FAILURE, "Cannot init clone mbuf pool\n");
705 if (rte_pmd_init_all() < 0)
706 rte_exit(EXIT_FAILURE, "Cannot init pmd\n");
708 if (rte_eal_pci_probe() < 0)
709 rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
711 nb_ports = rte_eth_dev_count();
713 rte_exit(EXIT_FAILURE, "No physical ports!\n");
714 if (nb_ports > MAX_PORTS)
715 nb_ports = MAX_PORTS;
717 nb_lcores = rte_lcore_count();
719 /* initialize all ports */
720 for (portid = 0; portid < nb_ports; portid++) {
721 /* skip ports that are not enabled */
722 if ((enabled_port_mask & (1 << portid)) == 0) {
723 printf("Skipping disabled port %d\n", portid);
727 qconf = &lcore_queue_conf[rx_lcore_id];
729 /* get the lcore_id for this port */
730 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
731 qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
734 qconf = &lcore_queue_conf[rx_lcore_id];
736 if (rx_lcore_id >= RTE_MAX_LCORE)
737 rte_exit(EXIT_FAILURE, "Not enough cores\n");
739 qconf->rx_queue_list[qconf->n_rx_queue] = portid;
743 printf("Initializing port %d on lcore %u... ", portid,
747 n_tx_queue = nb_lcores;
748 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
749 n_tx_queue = MAX_TX_QUEUE_PER_PORT;
750 ret = rte_eth_dev_configure(portid, 1, (uint16_t)n_tx_queue,
753 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
756 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
757 print_ethaddr(" Address:", &ports_eth_addr[portid]);
760 /* init one RX queue */
762 printf("rxq=%hu ", queueid);
764 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
768 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, port=%d\n",
771 /* init one TX queue per couple (lcore,port) */
774 RTE_LCORE_FOREACH(lcore_id) {
775 if (rte_lcore_is_enabled(lcore_id) == 0)
777 printf("txq=%u,%hu ", lcore_id, queueid);
779 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
782 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
783 "port=%d\n", ret, portid);
785 qconf = &lcore_queue_conf[lcore_id];
786 qconf->tx_queue_id[portid] = queueid;
791 ret = rte_eth_dev_start(portid);
793 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
798 /* get link status */
799 rte_eth_link_get(portid, &link);
800 if (link.link_status) {
801 printf(" Link Up - speed %u Mbps - %s\n",
802 (uint32_t) link.link_speed,
803 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
804 ("full-duplex") : ("half-duplex\n"));
805 rte_eth_promiscuous_enable(portid);
806 rte_eth_allmulticast_enable(portid);
808 printf(" Link Down\n");
813 /* initialize the multicast hash */
814 int retval = init_mcast_hash();
816 rte_exit(EXIT_FAILURE, "Cannot build the multicast hash\n");
818 /* launch per-lcore init on every lcore */
819 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
820 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
821 if (rte_eal_wait_lcore(lcore_id) < 0)