xref: /dpdk/examples/link_status_interrupt/main.c (revision 2717246ecd7d27125a346a2c5c55b53a9c251a93)
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 1024
51 #define RTE_TEST_TX_DESC_DEFAULT 1024
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 		.offloads = DEV_RX_OFFLOAD_CRC_STRIP,
83 	},
84 	.txmode = {
85 		.mq_mode = ETH_MQ_TX_NONE,
86 	},
87 	.intr_conf = {
88 		.lsc = 1, /**< lsc interrupt feature enabled */
89 	},
90 };
91 
92 struct rte_mempool * lsi_pktmbuf_pool = NULL;
93 
94 /* Per-port statistics struct */
95 struct lsi_port_statistics {
96 	uint64_t tx;
97 	uint64_t rx;
98 	uint64_t dropped;
99 } __rte_cache_aligned;
100 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
101 
102 /* A tsc-based timer responsible for triggering statistics printout */
103 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
104 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
105 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
106 
107 /* Print out statistics on packets dropped */
108 static void
109 print_stats(void)
110 {
111 	struct rte_eth_link link;
112 	uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
113 	uint16_t portid;
114 
115 	total_packets_dropped = 0;
116 	total_packets_tx = 0;
117 	total_packets_rx = 0;
118 
119 	const char clr[] = { 27, '[', '2', 'J', '\0' };
120 	const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
121 
122 		/* Clear screen and move to top left */
123 	printf("%s%s", clr, topLeft);
124 
125 	printf("\nPort statistics ====================================");
126 
127 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
128 		/* skip ports that are not enabled */
129 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
130 			continue;
131 
132 		memset(&link, 0, sizeof(link));
133 		rte_eth_link_get_nowait(portid, &link);
134 		printf("\nStatistics for port %u ------------------------------"
135 			   "\nLink status: %25s"
136 			   "\nLink speed: %26u"
137 			   "\nLink duplex: %25s"
138 			   "\nPackets sent: %24"PRIu64
139 			   "\nPackets received: %20"PRIu64
140 			   "\nPackets dropped: %21"PRIu64,
141 			   portid,
142 			   (link.link_status ? "Link up" : "Link down"),
143 			   (unsigned)link.link_speed,
144 			   (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
145 					"full-duplex" : "half-duplex"),
146 			   port_statistics[portid].tx,
147 			   port_statistics[portid].rx,
148 			   port_statistics[portid].dropped);
149 
150 		total_packets_dropped += port_statistics[portid].dropped;
151 		total_packets_tx += port_statistics[portid].tx;
152 		total_packets_rx += port_statistics[portid].rx;
153 	}
154 	printf("\nAggregate statistics ==============================="
155 		   "\nTotal packets sent: %18"PRIu64
156 		   "\nTotal packets received: %14"PRIu64
157 		   "\nTotal packets dropped: %15"PRIu64,
158 		   total_packets_tx,
159 		   total_packets_rx,
160 		   total_packets_dropped);
161 	printf("\n====================================================\n");
162 }
163 
164 static void
165 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
166 {
167 	struct ether_hdr *eth;
168 	void *tmp;
169 	unsigned dst_port = lsi_dst_ports[portid];
170 	int sent;
171 	struct rte_eth_dev_tx_buffer *buffer;
172 
173 	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
174 
175 	/* 02:00:00:00:00:xx */
176 	tmp = &eth->d_addr.addr_bytes[0];
177 	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
178 
179 	/* src addr */
180 	ether_addr_copy(&lsi_ports_eth_addr[dst_port], &eth->s_addr);
181 
182 	buffer = tx_buffer[dst_port];
183 	sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
184 	if (sent)
185 		port_statistics[dst_port].tx += sent;
186 }
187 
188 /* main processing loop */
189 static void
190 lsi_main_loop(void)
191 {
192 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
193 	struct rte_mbuf *m;
194 	unsigned lcore_id;
195 	unsigned sent;
196 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
197 	unsigned i, j, portid, nb_rx;
198 	struct lcore_queue_conf *qconf;
199 	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
200 			BURST_TX_DRAIN_US;
201 	struct rte_eth_dev_tx_buffer *buffer;
202 
203 	prev_tsc = 0;
204 	timer_tsc = 0;
205 
206 	lcore_id = rte_lcore_id();
207 	qconf = &lcore_queue_conf[lcore_id];
208 
209 	if (qconf->n_rx_port == 0) {
210 		RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
211 		return;
212 	}
213 
214 	RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
215 
216 	for (i = 0; i < qconf->n_rx_port; i++) {
217 
218 		portid = qconf->rx_port_list[i];
219 		RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
220 			portid);
221 	}
222 
223 	while (1) {
224 
225 		cur_tsc = rte_rdtsc();
226 
227 		/*
228 		 * TX burst queue drain
229 		 */
230 		diff_tsc = cur_tsc - prev_tsc;
231 		if (unlikely(diff_tsc > drain_tsc)) {
232 
233 			for (i = 0; i < qconf->n_rx_port; i++) {
234 
235 				portid = lsi_dst_ports[qconf->rx_port_list[i]];
236 				buffer = tx_buffer[portid];
237 
238 				sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
239 				if (sent)
240 					port_statistics[portid].tx += sent;
241 
242 			}
243 
244 			/* if timer is enabled */
245 			if (timer_period > 0) {
246 
247 				/* advance the timer */
248 				timer_tsc += diff_tsc;
249 
250 				/* if timer has reached its timeout */
251 				if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
252 
253 					/* do this only on master core */
254 					if (lcore_id == rte_get_master_lcore()) {
255 						print_stats();
256 						/* reset the timer */
257 						timer_tsc = 0;
258 					}
259 				}
260 			}
261 
262 			prev_tsc = cur_tsc;
263 		}
264 
265 		/*
266 		 * Read packet from RX queues
267 		 */
268 		for (i = 0; i < qconf->n_rx_port; i++) {
269 
270 			portid = qconf->rx_port_list[i];
271 			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
272 						 pkts_burst, MAX_PKT_BURST);
273 
274 			port_statistics[portid].rx += nb_rx;
275 
276 			for (j = 0; j < nb_rx; j++) {
277 				m = pkts_burst[j];
278 				rte_prefetch0(rte_pktmbuf_mtod(m, void *));
279 				lsi_simple_forward(m, portid);
280 			}
281 		}
282 	}
283 }
284 
285 static int
286 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
287 {
288 	lsi_main_loop();
289 	return 0;
290 }
291 
292 /* display usage */
293 static void
294 lsi_usage(const char *prgname)
295 {
296 	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
297 		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
298 		"  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
299 		"  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
300 			prgname);
301 }
302 
303 static int
304 lsi_parse_portmask(const char *portmask)
305 {
306 	char *end = NULL;
307 	unsigned long pm;
308 
309 	/* parse hexadecimal string */
310 	pm = strtoul(portmask, &end, 16);
311 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
312 		return -1;
313 
314 	if (pm == 0)
315 		return -1;
316 
317 	return pm;
318 }
319 
320 static unsigned int
321 lsi_parse_nqueue(const char *q_arg)
322 {
323 	char *end = NULL;
324 	unsigned long n;
325 
326 	/* parse hexadecimal string */
327 	n = strtoul(q_arg, &end, 10);
328 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
329 		return 0;
330 	if (n == 0)
331 		return 0;
332 	if (n >= MAX_RX_QUEUE_PER_LCORE)
333 		return 0;
334 
335 	return n;
336 }
337 
338 static int
339 lsi_parse_timer_period(const char *q_arg)
340 {
341 	char *end = NULL;
342 	int n;
343 
344 	/* parse number string */
345 	n = strtol(q_arg, &end, 10);
346 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
347 		return -1;
348 	if (n >= MAX_TIMER_PERIOD)
349 		return -1;
350 
351 	return n;
352 }
353 
354 /* Parse the argument given in the command line of the application */
355 static int
356 lsi_parse_args(int argc, char **argv)
357 {
358 	int opt, ret;
359 	char **argvopt;
360 	int option_index;
361 	char *prgname = argv[0];
362 	static struct option lgopts[] = {
363 		{NULL, 0, 0, 0}
364 	};
365 
366 	argvopt = argv;
367 
368 	while ((opt = getopt_long(argc, argvopt, "p:q:T:",
369 				  lgopts, &option_index)) != EOF) {
370 
371 		switch (opt) {
372 		/* portmask */
373 		case 'p':
374 			lsi_enabled_port_mask = lsi_parse_portmask(optarg);
375 			if (lsi_enabled_port_mask == 0) {
376 				printf("invalid portmask\n");
377 				lsi_usage(prgname);
378 				return -1;
379 			}
380 			break;
381 
382 		/* nqueue */
383 		case 'q':
384 			lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
385 			if (lsi_rx_queue_per_lcore == 0) {
386 				printf("invalid queue number\n");
387 				lsi_usage(prgname);
388 				return -1;
389 			}
390 			break;
391 
392 		/* timer period */
393 		case 'T':
394 			timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
395 			if (timer_period < 0) {
396 				printf("invalid timer period\n");
397 				lsi_usage(prgname);
398 				return -1;
399 			}
400 			break;
401 
402 		/* long options */
403 		case 0:
404 			lsi_usage(prgname);
405 			return -1;
406 
407 		default:
408 			lsi_usage(prgname);
409 			return -1;
410 		}
411 	}
412 
413 	if (optind >= 0)
414 		argv[optind-1] = prgname;
415 
416 	ret = optind-1;
417 	optind = 1; /* reset getopt lib */
418 	return ret;
419 }
420 
421 /**
422  * It will be called as the callback for specified port after a LSI interrupt
423  * has been fully handled. This callback needs to be implemented carefully as
424  * it will be called in the interrupt host thread which is different from the
425  * application main thread.
426  *
427  * @param port_id
428  *  Port id.
429  * @param type
430  *  event type.
431  * @param param
432  *  Pointer to(address of) the parameters.
433  *
434  * @return
435  *  int.
436  */
437 static int
438 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
439 		    void *ret_param)
440 {
441 	struct rte_eth_link link;
442 
443 	RTE_SET_USED(param);
444 	RTE_SET_USED(ret_param);
445 
446 	printf("\n\nIn registered callback...\n");
447 	printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
448 	rte_eth_link_get_nowait(port_id, &link);
449 	if (link.link_status) {
450 		printf("Port %d Link Up - speed %u Mbps - %s\n\n",
451 				port_id, (unsigned)link.link_speed,
452 			(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
453 				("full-duplex") : ("half-duplex"));
454 	} else
455 		printf("Port %d Link Down\n\n", port_id);
456 
457 	return 0;
458 }
459 
460 /* Check the link status of all ports in up to 9s, and print them finally */
461 static void
462 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
463 {
464 #define CHECK_INTERVAL 100 /* 100ms */
465 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
466 	uint8_t count, all_ports_up, print_flag = 0;
467 	uint16_t portid;
468 	struct rte_eth_link link;
469 
470 	printf("\nChecking link status");
471 	fflush(stdout);
472 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
473 		all_ports_up = 1;
474 		for (portid = 0; portid < port_num; portid++) {
475 			if ((port_mask & (1 << portid)) == 0)
476 				continue;
477 			memset(&link, 0, sizeof(link));
478 			rte_eth_link_get_nowait(portid, &link);
479 			/* print link status if flag set */
480 			if (print_flag == 1) {
481 				if (link.link_status)
482 					printf(
483 					"Port%d Link Up. Speed %u Mbps - %s\n",
484 						portid, link.link_speed,
485 				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
486 					("full-duplex") : ("half-duplex\n"));
487 				else
488 					printf("Port %d Link Down\n", portid);
489 				continue;
490 			}
491 			/* clear all_ports_up flag if any link down */
492 			if (link.link_status == ETH_LINK_DOWN) {
493 				all_ports_up = 0;
494 				break;
495 			}
496 		}
497 		/* after finally printing all link status, get out */
498 		if (print_flag == 1)
499 			break;
500 
501 		if (all_ports_up == 0) {
502 			printf(".");
503 			fflush(stdout);
504 			rte_delay_ms(CHECK_INTERVAL);
505 		}
506 
507 		/* set the print_flag if all ports up or timeout */
508 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
509 			print_flag = 1;
510 			printf("done\n");
511 		}
512 	}
513 }
514 
515 int
516 main(int argc, char **argv)
517 {
518 	struct lcore_queue_conf *qconf;
519 	int ret;
520 	uint16_t nb_ports;
521 	uint16_t portid, portid_last = 0;
522 	unsigned lcore_id, rx_lcore_id;
523 	unsigned nb_ports_in_mask = 0;
524 
525 	/* init EAL */
526 	ret = rte_eal_init(argc, argv);
527 	if (ret < 0)
528 		rte_exit(EXIT_FAILURE, "rte_eal_init failed");
529 	argc -= ret;
530 	argv += ret;
531 
532 	/* parse application arguments (after the EAL ones) */
533 	ret = lsi_parse_args(argc, argv);
534 	if (ret < 0)
535 		rte_exit(EXIT_FAILURE, "Invalid arguments");
536 
537 	/* create the mbuf pool */
538 	lsi_pktmbuf_pool =
539 		rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
540 			RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
541 	if (lsi_pktmbuf_pool == NULL)
542 		rte_panic("Cannot init mbuf pool\n");
543 
544 	nb_ports = rte_eth_dev_count_avail();
545 	if (nb_ports == 0)
546 		rte_panic("No Ethernet port - bye\n");
547 
548 	/*
549 	 * Each logical core is assigned a dedicated TX queue on each port.
550 	 */
551 	for (portid = 0; portid < nb_ports; portid++) {
552 		/* skip ports that are not enabled */
553 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
554 			continue;
555 
556 		/* save the destination port id */
557 		if (nb_ports_in_mask % 2) {
558 			lsi_dst_ports[portid] = portid_last;
559 			lsi_dst_ports[portid_last] = portid;
560 		}
561 		else
562 			portid_last = portid;
563 
564 		nb_ports_in_mask++;
565 	}
566 	if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
567 		rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
568 				"but it should be even and at least 2\n",
569 				nb_ports_in_mask);
570 
571 	rx_lcore_id = 0;
572 	qconf = &lcore_queue_conf[rx_lcore_id];
573 
574 	/* Initialize the port/queue configuration of each logical core */
575 	for (portid = 0; portid < nb_ports; portid++) {
576 		/* skip ports that are not enabled */
577 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
578 			continue;
579 
580 		/* get the lcore_id for this port */
581 		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
582 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
583 		       lsi_rx_queue_per_lcore) {
584 
585 			rx_lcore_id++;
586 			if (rx_lcore_id >= RTE_MAX_LCORE)
587 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
588 		}
589 		if (qconf != &lcore_queue_conf[rx_lcore_id])
590 			/* Assigned a new logical core in the loop above. */
591 			qconf = &lcore_queue_conf[rx_lcore_id];
592 
593 		qconf->rx_port_list[qconf->n_rx_port] = portid;
594 		qconf->n_rx_port++;
595 		printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
596 	}
597 
598 	/* Initialise each port */
599 	for (portid = 0; portid < nb_ports; portid++) {
600 		struct rte_eth_rxconf rxq_conf;
601 		struct rte_eth_txconf txq_conf;
602 		struct rte_eth_conf local_port_conf = port_conf;
603 		struct rte_eth_dev_info dev_info;
604 
605 		/* skip ports that are not enabled */
606 		if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
607 			printf("Skipping disabled port %u\n", (unsigned) portid);
608 			continue;
609 		}
610 		/* init port */
611 		printf("Initializing port %u... ", (unsigned) portid);
612 		fflush(stdout);
613 		rte_eth_dev_info_get(portid, &dev_info);
614 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
615 			local_port_conf.txmode.offloads |=
616 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
617 		ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
618 		if (ret < 0)
619 			rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
620 				  ret, (unsigned) portid);
621 
622 		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
623 						       &nb_txd);
624 		if (ret < 0)
625 			rte_exit(EXIT_FAILURE,
626 				 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
627 				 ret, (unsigned) portid);
628 
629 		/* register lsi interrupt callback, need to be after
630 		 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
631 		 * lsc interrupt will be present, and below callback to
632 		 * be registered will never be called.
633 		 */
634 		rte_eth_dev_callback_register(portid,
635 			RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
636 
637 		rte_eth_macaddr_get(portid,
638 				    &lsi_ports_eth_addr[portid]);
639 
640 		/* init one RX queue */
641 		fflush(stdout);
642 		rxq_conf = dev_info.default_rxconf;
643 		rxq_conf.offloads = local_port_conf.rxmode.offloads;
644 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
645 					     rte_eth_dev_socket_id(portid),
646 					     &rxq_conf,
647 					     lsi_pktmbuf_pool);
648 		if (ret < 0)
649 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
650 				  ret, (unsigned) portid);
651 
652 		/* init one TX queue logical core on each port */
653 		fflush(stdout);
654 		txq_conf = dev_info.default_txconf;
655 		txq_conf.offloads = local_port_conf.txmode.offloads;
656 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
657 				rte_eth_dev_socket_id(portid),
658 				&txq_conf);
659 		if (ret < 0)
660 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
661 				  ret, (unsigned) portid);
662 
663 		/* Initialize TX buffers */
664 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
665 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
666 				rte_eth_dev_socket_id(portid));
667 		if (tx_buffer[portid] == NULL)
668 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
669 					(unsigned) portid);
670 
671 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
672 
673 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
674 				rte_eth_tx_buffer_count_callback,
675 				&port_statistics[portid].dropped);
676 		if (ret < 0)
677 			rte_exit(EXIT_FAILURE, "Cannot set error callback for "
678 					"tx buffer on port %u\n", (unsigned) portid);
679 
680 		/* Start device */
681 		ret = rte_eth_dev_start(portid);
682 		if (ret < 0)
683 			rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
684 				  ret, (unsigned) portid);
685 		printf("done:\n");
686 
687 		rte_eth_promiscuous_enable(portid);
688 
689 		printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
690 				(unsigned) portid,
691 				lsi_ports_eth_addr[portid].addr_bytes[0],
692 				lsi_ports_eth_addr[portid].addr_bytes[1],
693 				lsi_ports_eth_addr[portid].addr_bytes[2],
694 				lsi_ports_eth_addr[portid].addr_bytes[3],
695 				lsi_ports_eth_addr[portid].addr_bytes[4],
696 				lsi_ports_eth_addr[portid].addr_bytes[5]);
697 
698 		/* initialize port stats */
699 		memset(&port_statistics, 0, sizeof(port_statistics));
700 	}
701 
702 	check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
703 
704 	/* launch per-lcore init on every lcore */
705 	rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
706 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
707 		if (rte_eal_wait_lcore(lcore_id) < 0)
708 			return -1;
709 	}
710 
711 	return 0;
712 }
713