xref: /dpdk/examples/link_status_interrupt/main.c (revision 655c901bf7345e2eb7e2bb603a6c30ac6feff3c9)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2016 Intel Corporation
3  */
4 
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <stdint.h>
9 #include <inttypes.h>
10 #include <sys/types.h>
11 #include <sys/queue.h>
12 #include <netinet/in.h>
13 #include <setjmp.h>
14 #include <stdarg.h>
15 #include <ctype.h>
16 #include <errno.h>
17 #include <getopt.h>
18 
19 #include <rte_common.h>
20 #include <rte_log.h>
21 #include <rte_malloc.h>
22 #include <rte_memory.h>
23 #include <rte_memcpy.h>
24 #include <rte_eal.h>
25 #include <rte_launch.h>
26 #include <rte_atomic.h>
27 #include <rte_cycles.h>
28 #include <rte_prefetch.h>
29 #include <rte_lcore.h>
30 #include <rte_per_lcore.h>
31 #include <rte_branch_prediction.h>
32 #include <rte_interrupts.h>
33 #include <rte_random.h>
34 #include <rte_debug.h>
35 #include <rte_ether.h>
36 #include <rte_ethdev.h>
37 #include <rte_mempool.h>
38 #include <rte_mbuf.h>
39 
40 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
41 
42 #define NB_MBUF   8192
43 
44 #define MAX_PKT_BURST 32
45 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
46 
47 /*
48  * Configurable number of RX/TX ring descriptors
49  */
50 #define RTE_TEST_RX_DESC_DEFAULT 128
51 #define RTE_TEST_TX_DESC_DEFAULT 512
52 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
53 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
54 
55 /* ethernet addresses of ports */
56 static struct ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
57 
58 /* mask of enabled ports */
59 static uint32_t lsi_enabled_port_mask = 0;
60 
61 static unsigned int lsi_rx_queue_per_lcore = 1;
62 
63 /* destination port for L2 forwarding */
64 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
65 
66 #define MAX_PKT_BURST 32
67 
68 #define MAX_RX_QUEUE_PER_LCORE 16
69 #define MAX_TX_QUEUE_PER_PORT 16
70 struct lcore_queue_conf {
71 	unsigned n_rx_port;
72 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
73 	unsigned tx_queue_id;
74 } __rte_cache_aligned;
75 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
76 
77 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
78 
79 static struct rte_eth_conf port_conf = {
80 	.rxmode = {
81 		.split_hdr_size = 0,
82 		.ignore_offload_bitfield = 1,
83 		.offloads = DEV_RX_OFFLOAD_CRC_STRIP,
84 	},
85 	.txmode = {
86 		.mq_mode = ETH_MQ_TX_NONE,
87 	},
88 	.intr_conf = {
89 		.lsc = 1, /**< lsc interrupt feature enabled */
90 	},
91 };
92 
93 struct rte_mempool * lsi_pktmbuf_pool = NULL;
94 
95 /* Per-port statistics struct */
96 struct lsi_port_statistics {
97 	uint64_t tx;
98 	uint64_t rx;
99 	uint64_t dropped;
100 } __rte_cache_aligned;
101 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
102 
103 /* A tsc-based timer responsible for triggering statistics printout */
104 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
105 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
106 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
107 
108 /* Print out statistics on packets dropped */
109 static void
110 print_stats(void)
111 {
112 	struct rte_eth_link link;
113 	uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
114 	uint16_t portid;
115 
116 	total_packets_dropped = 0;
117 	total_packets_tx = 0;
118 	total_packets_rx = 0;
119 
120 	const char clr[] = { 27, '[', '2', 'J', '\0' };
121 	const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
122 
123 		/* Clear screen and move to top left */
124 	printf("%s%s", clr, topLeft);
125 
126 	printf("\nPort statistics ====================================");
127 
128 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
129 		/* skip ports that are not enabled */
130 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
131 			continue;
132 
133 		memset(&link, 0, sizeof(link));
134 		rte_eth_link_get_nowait(portid, &link);
135 		printf("\nStatistics for port %u ------------------------------"
136 			   "\nLink status: %25s"
137 			   "\nLink speed: %26u"
138 			   "\nLink duplex: %25s"
139 			   "\nPackets sent: %24"PRIu64
140 			   "\nPackets received: %20"PRIu64
141 			   "\nPackets dropped: %21"PRIu64,
142 			   portid,
143 			   (link.link_status ? "Link up" : "Link down"),
144 			   (unsigned)link.link_speed,
145 			   (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
146 					"full-duplex" : "half-duplex"),
147 			   port_statistics[portid].tx,
148 			   port_statistics[portid].rx,
149 			   port_statistics[portid].dropped);
150 
151 		total_packets_dropped += port_statistics[portid].dropped;
152 		total_packets_tx += port_statistics[portid].tx;
153 		total_packets_rx += port_statistics[portid].rx;
154 	}
155 	printf("\nAggregate statistics ==============================="
156 		   "\nTotal packets sent: %18"PRIu64
157 		   "\nTotal packets received: %14"PRIu64
158 		   "\nTotal packets dropped: %15"PRIu64,
159 		   total_packets_tx,
160 		   total_packets_rx,
161 		   total_packets_dropped);
162 	printf("\n====================================================\n");
163 }
164 
165 static void
166 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
167 {
168 	struct ether_hdr *eth;
169 	void *tmp;
170 	unsigned dst_port = lsi_dst_ports[portid];
171 	int sent;
172 	struct rte_eth_dev_tx_buffer *buffer;
173 
174 	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
175 
176 	/* 02:00:00:00:00:xx */
177 	tmp = &eth->d_addr.addr_bytes[0];
178 	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
179 
180 	/* src addr */
181 	ether_addr_copy(&lsi_ports_eth_addr[dst_port], &eth->s_addr);
182 
183 	buffer = tx_buffer[dst_port];
184 	sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
185 	if (sent)
186 		port_statistics[dst_port].tx += sent;
187 }
188 
189 /* main processing loop */
190 static void
191 lsi_main_loop(void)
192 {
193 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
194 	struct rte_mbuf *m;
195 	unsigned lcore_id;
196 	unsigned sent;
197 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
198 	unsigned i, j, portid, nb_rx;
199 	struct lcore_queue_conf *qconf;
200 	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
201 			BURST_TX_DRAIN_US;
202 	struct rte_eth_dev_tx_buffer *buffer;
203 
204 	prev_tsc = 0;
205 	timer_tsc = 0;
206 
207 	lcore_id = rte_lcore_id();
208 	qconf = &lcore_queue_conf[lcore_id];
209 
210 	if (qconf->n_rx_port == 0) {
211 		RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
212 		return;
213 	}
214 
215 	RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
216 
217 	for (i = 0; i < qconf->n_rx_port; i++) {
218 
219 		portid = qconf->rx_port_list[i];
220 		RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
221 			portid);
222 	}
223 
224 	while (1) {
225 
226 		cur_tsc = rte_rdtsc();
227 
228 		/*
229 		 * TX burst queue drain
230 		 */
231 		diff_tsc = cur_tsc - prev_tsc;
232 		if (unlikely(diff_tsc > drain_tsc)) {
233 
234 			for (i = 0; i < qconf->n_rx_port; i++) {
235 
236 				portid = lsi_dst_ports[qconf->rx_port_list[i]];
237 				buffer = tx_buffer[portid];
238 
239 				sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
240 				if (sent)
241 					port_statistics[portid].tx += sent;
242 
243 			}
244 
245 			/* if timer is enabled */
246 			if (timer_period > 0) {
247 
248 				/* advance the timer */
249 				timer_tsc += diff_tsc;
250 
251 				/* if timer has reached its timeout */
252 				if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
253 
254 					/* do this only on master core */
255 					if (lcore_id == rte_get_master_lcore()) {
256 						print_stats();
257 						/* reset the timer */
258 						timer_tsc = 0;
259 					}
260 				}
261 			}
262 
263 			prev_tsc = cur_tsc;
264 		}
265 
266 		/*
267 		 * Read packet from RX queues
268 		 */
269 		for (i = 0; i < qconf->n_rx_port; i++) {
270 
271 			portid = qconf->rx_port_list[i];
272 			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
273 						 pkts_burst, MAX_PKT_BURST);
274 
275 			port_statistics[portid].rx += nb_rx;
276 
277 			for (j = 0; j < nb_rx; j++) {
278 				m = pkts_burst[j];
279 				rte_prefetch0(rte_pktmbuf_mtod(m, void *));
280 				lsi_simple_forward(m, portid);
281 			}
282 		}
283 	}
284 }
285 
286 static int
287 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
288 {
289 	lsi_main_loop();
290 	return 0;
291 }
292 
293 /* display usage */
294 static void
295 lsi_usage(const char *prgname)
296 {
297 	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
298 		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
299 		"  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
300 		"  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
301 			prgname);
302 }
303 
304 static int
305 lsi_parse_portmask(const char *portmask)
306 {
307 	char *end = NULL;
308 	unsigned long pm;
309 
310 	/* parse hexadecimal string */
311 	pm = strtoul(portmask, &end, 16);
312 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
313 		return -1;
314 
315 	if (pm == 0)
316 		return -1;
317 
318 	return pm;
319 }
320 
321 static unsigned int
322 lsi_parse_nqueue(const char *q_arg)
323 {
324 	char *end = NULL;
325 	unsigned long n;
326 
327 	/* parse hexadecimal string */
328 	n = strtoul(q_arg, &end, 10);
329 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
330 		return 0;
331 	if (n == 0)
332 		return 0;
333 	if (n >= MAX_RX_QUEUE_PER_LCORE)
334 		return 0;
335 
336 	return n;
337 }
338 
339 static int
340 lsi_parse_timer_period(const char *q_arg)
341 {
342 	char *end = NULL;
343 	int n;
344 
345 	/* parse number string */
346 	n = strtol(q_arg, &end, 10);
347 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
348 		return -1;
349 	if (n >= MAX_TIMER_PERIOD)
350 		return -1;
351 
352 	return n;
353 }
354 
355 /* Parse the argument given in the command line of the application */
356 static int
357 lsi_parse_args(int argc, char **argv)
358 {
359 	int opt, ret;
360 	char **argvopt;
361 	int option_index;
362 	char *prgname = argv[0];
363 	static struct option lgopts[] = {
364 		{NULL, 0, 0, 0}
365 	};
366 
367 	argvopt = argv;
368 
369 	while ((opt = getopt_long(argc, argvopt, "p:q:T:",
370 				  lgopts, &option_index)) != EOF) {
371 
372 		switch (opt) {
373 		/* portmask */
374 		case 'p':
375 			lsi_enabled_port_mask = lsi_parse_portmask(optarg);
376 			if (lsi_enabled_port_mask == 0) {
377 				printf("invalid portmask\n");
378 				lsi_usage(prgname);
379 				return -1;
380 			}
381 			break;
382 
383 		/* nqueue */
384 		case 'q':
385 			lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
386 			if (lsi_rx_queue_per_lcore == 0) {
387 				printf("invalid queue number\n");
388 				lsi_usage(prgname);
389 				return -1;
390 			}
391 			break;
392 
393 		/* timer period */
394 		case 'T':
395 			timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
396 			if (timer_period < 0) {
397 				printf("invalid timer period\n");
398 				lsi_usage(prgname);
399 				return -1;
400 			}
401 			break;
402 
403 		/* long options */
404 		case 0:
405 			lsi_usage(prgname);
406 			return -1;
407 
408 		default:
409 			lsi_usage(prgname);
410 			return -1;
411 		}
412 	}
413 
414 	if (optind >= 0)
415 		argv[optind-1] = prgname;
416 
417 	ret = optind-1;
418 	optind = 1; /* reset getopt lib */
419 	return ret;
420 }
421 
422 /**
423  * It will be called as the callback for specified port after a LSI interrupt
424  * has been fully handled. This callback needs to be implemented carefully as
425  * it will be called in the interrupt host thread which is different from the
426  * application main thread.
427  *
428  * @param port_id
429  *  Port id.
430  * @param type
431  *  event type.
432  * @param param
433  *  Pointer to(address of) the parameters.
434  *
435  * @return
436  *  int.
437  */
438 static int
439 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
440 		    void *ret_param)
441 {
442 	struct rte_eth_link link;
443 
444 	RTE_SET_USED(param);
445 	RTE_SET_USED(ret_param);
446 
447 	printf("\n\nIn registered callback...\n");
448 	printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
449 	rte_eth_link_get_nowait(port_id, &link);
450 	if (link.link_status) {
451 		printf("Port %d Link Up - speed %u Mbps - %s\n\n",
452 				port_id, (unsigned)link.link_speed,
453 			(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
454 				("full-duplex") : ("half-duplex"));
455 	} else
456 		printf("Port %d Link Down\n\n", port_id);
457 
458 	return 0;
459 }
460 
461 /* Check the link status of all ports in up to 9s, and print them finally */
462 static void
463 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
464 {
465 #define CHECK_INTERVAL 100 /* 100ms */
466 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
467 	uint8_t count, all_ports_up, print_flag = 0;
468 	uint16_t portid;
469 	struct rte_eth_link link;
470 
471 	printf("\nChecking link status");
472 	fflush(stdout);
473 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
474 		all_ports_up = 1;
475 		for (portid = 0; portid < port_num; portid++) {
476 			if ((port_mask & (1 << portid)) == 0)
477 				continue;
478 			memset(&link, 0, sizeof(link));
479 			rte_eth_link_get_nowait(portid, &link);
480 			/* print link status if flag set */
481 			if (print_flag == 1) {
482 				if (link.link_status)
483 					printf(
484 					"Port%d Link Up. Speed %u Mbps - %s\n",
485 						portid, link.link_speed,
486 				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
487 					("full-duplex") : ("half-duplex\n"));
488 				else
489 					printf("Port %d Link Down\n", portid);
490 				continue;
491 			}
492 			/* clear all_ports_up flag if any link down */
493 			if (link.link_status == ETH_LINK_DOWN) {
494 				all_ports_up = 0;
495 				break;
496 			}
497 		}
498 		/* after finally printing all link status, get out */
499 		if (print_flag == 1)
500 			break;
501 
502 		if (all_ports_up == 0) {
503 			printf(".");
504 			fflush(stdout);
505 			rte_delay_ms(CHECK_INTERVAL);
506 		}
507 
508 		/* set the print_flag if all ports up or timeout */
509 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
510 			print_flag = 1;
511 			printf("done\n");
512 		}
513 	}
514 }
515 
516 int
517 main(int argc, char **argv)
518 {
519 	struct lcore_queue_conf *qconf;
520 	int ret;
521 	uint16_t nb_ports;
522 	uint16_t portid, portid_last = 0;
523 	unsigned lcore_id, rx_lcore_id;
524 	unsigned nb_ports_in_mask = 0;
525 
526 	/* init EAL */
527 	ret = rte_eal_init(argc, argv);
528 	if (ret < 0)
529 		rte_exit(EXIT_FAILURE, "rte_eal_init failed");
530 	argc -= ret;
531 	argv += ret;
532 
533 	/* parse application arguments (after the EAL ones) */
534 	ret = lsi_parse_args(argc, argv);
535 	if (ret < 0)
536 		rte_exit(EXIT_FAILURE, "Invalid arguments");
537 
538 	/* create the mbuf pool */
539 	lsi_pktmbuf_pool =
540 		rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
541 			RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
542 	if (lsi_pktmbuf_pool == NULL)
543 		rte_panic("Cannot init mbuf pool\n");
544 
545 	nb_ports = rte_eth_dev_count();
546 	if (nb_ports == 0)
547 		rte_panic("No Ethernet port - bye\n");
548 
549 	/*
550 	 * Each logical core is assigned a dedicated TX queue on each port.
551 	 */
552 	for (portid = 0; portid < nb_ports; portid++) {
553 		/* skip ports that are not enabled */
554 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
555 			continue;
556 
557 		/* save the destination port id */
558 		if (nb_ports_in_mask % 2) {
559 			lsi_dst_ports[portid] = portid_last;
560 			lsi_dst_ports[portid_last] = portid;
561 		}
562 		else
563 			portid_last = portid;
564 
565 		nb_ports_in_mask++;
566 	}
567 	if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
568 		rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
569 				"but it should be even and at least 2\n",
570 				nb_ports_in_mask);
571 
572 	rx_lcore_id = 0;
573 	qconf = &lcore_queue_conf[rx_lcore_id];
574 
575 	/* Initialize the port/queue configuration of each logical core */
576 	for (portid = 0; portid < nb_ports; portid++) {
577 		/* skip ports that are not enabled */
578 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
579 			continue;
580 
581 		/* get the lcore_id for this port */
582 		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
583 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
584 		       lsi_rx_queue_per_lcore) {
585 
586 			rx_lcore_id++;
587 			if (rx_lcore_id >= RTE_MAX_LCORE)
588 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
589 		}
590 		if (qconf != &lcore_queue_conf[rx_lcore_id])
591 			/* Assigned a new logical core in the loop above. */
592 			qconf = &lcore_queue_conf[rx_lcore_id];
593 
594 		qconf->rx_port_list[qconf->n_rx_port] = portid;
595 		qconf->n_rx_port++;
596 		printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
597 	}
598 
599 	/* Initialise each port */
600 	for (portid = 0; portid < nb_ports; portid++) {
601 		struct rte_eth_rxconf rxq_conf;
602 		struct rte_eth_txconf txq_conf;
603 		struct rte_eth_conf local_port_conf = port_conf;
604 		struct rte_eth_dev_info dev_info;
605 
606 		/* skip ports that are not enabled */
607 		if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
608 			printf("Skipping disabled port %u\n", (unsigned) portid);
609 			continue;
610 		}
611 		/* init port */
612 		printf("Initializing port %u... ", (unsigned) portid);
613 		fflush(stdout);
614 		rte_eth_dev_info_get(portid, &dev_info);
615 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
616 			local_port_conf.txmode.offloads |=
617 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
618 		ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
619 		if (ret < 0)
620 			rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
621 				  ret, (unsigned) portid);
622 
623 		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
624 						       &nb_txd);
625 		if (ret < 0)
626 			rte_exit(EXIT_FAILURE,
627 				 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
628 				 ret, (unsigned) portid);
629 
630 		/* register lsi interrupt callback, need to be after
631 		 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
632 		 * lsc interrupt will be present, and below callback to
633 		 * be registered will never be called.
634 		 */
635 		rte_eth_dev_callback_register(portid,
636 			RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
637 
638 		rte_eth_macaddr_get(portid,
639 				    &lsi_ports_eth_addr[portid]);
640 
641 		/* init one RX queue */
642 		fflush(stdout);
643 		rxq_conf = dev_info.default_rxconf;
644 		rxq_conf.offloads = local_port_conf.rxmode.offloads;
645 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
646 					     rte_eth_dev_socket_id(portid),
647 					     &rxq_conf,
648 					     lsi_pktmbuf_pool);
649 		if (ret < 0)
650 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
651 				  ret, (unsigned) portid);
652 
653 		/* init one TX queue logical core on each port */
654 		fflush(stdout);
655 		txq_conf = dev_info.default_txconf;
656 		txq_conf.txq_flags = ETH_TXQ_FLAGS_IGNORE;
657 		txq_conf.offloads = local_port_conf.txmode.offloads;
658 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
659 				rte_eth_dev_socket_id(portid),
660 				&txq_conf);
661 		if (ret < 0)
662 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
663 				  ret, (unsigned) portid);
664 
665 		/* Initialize TX buffers */
666 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
667 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
668 				rte_eth_dev_socket_id(portid));
669 		if (tx_buffer[portid] == NULL)
670 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
671 					(unsigned) portid);
672 
673 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
674 
675 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
676 				rte_eth_tx_buffer_count_callback,
677 				&port_statistics[portid].dropped);
678 		if (ret < 0)
679 			rte_exit(EXIT_FAILURE, "Cannot set error callback for "
680 					"tx buffer on port %u\n", (unsigned) portid);
681 
682 		/* Start device */
683 		ret = rte_eth_dev_start(portid);
684 		if (ret < 0)
685 			rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
686 				  ret, (unsigned) portid);
687 		printf("done:\n");
688 
689 		rte_eth_promiscuous_enable(portid);
690 
691 		printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
692 				(unsigned) portid,
693 				lsi_ports_eth_addr[portid].addr_bytes[0],
694 				lsi_ports_eth_addr[portid].addr_bytes[1],
695 				lsi_ports_eth_addr[portid].addr_bytes[2],
696 				lsi_ports_eth_addr[portid].addr_bytes[3],
697 				lsi_ports_eth_addr[portid].addr_bytes[4],
698 				lsi_ports_eth_addr[portid].addr_bytes[5]);
699 
700 		/* initialize port stats */
701 		memset(&port_statistics, 0, sizeof(port_statistics));
702 	}
703 
704 	check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
705 
706 	/* launch per-lcore init on every lcore */
707 	rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
708 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
709 		if (rte_eal_wait_lcore(lcore_id) < 0)
710 			return -1;
711 	}
712 
713 	return 0;
714 }
715