xref: /dpdk/examples/link_status_interrupt/main.c (revision 0499793854f52d0a42aa39a6b8036700f3719735)
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
5  *   All rights reserved.
6  *
7  *   Redistribution and use in source and binary forms, with or without
8  *   modification, are permitted provided that the following conditions
9  *   are met:
10  *
11  *     * Redistributions of source code must retain the above copyright
12  *       notice, this list of conditions and the following disclaimer.
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *     * Neither the name of Intel Corporation nor the names of its
18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
20  *
21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <stdint.h>
38 #include <inttypes.h>
39 #include <sys/types.h>
40 #include <string.h>
41 #include <sys/queue.h>
42 #include <netinet/in.h>
43 #include <setjmp.h>
44 #include <stdarg.h>
45 #include <ctype.h>
46 #include <errno.h>
47 #include <getopt.h>
48 
49 #include <rte_common.h>
50 #include <rte_log.h>
51 #include <rte_malloc.h>
52 #include <rte_memory.h>
53 #include <rte_memcpy.h>
54 #include <rte_memzone.h>
55 #include <rte_eal.h>
56 #include <rte_per_lcore.h>
57 #include <rte_launch.h>
58 #include <rte_atomic.h>
59 #include <rte_cycles.h>
60 #include <rte_prefetch.h>
61 #include <rte_lcore.h>
62 #include <rte_per_lcore.h>
63 #include <rte_branch_prediction.h>
64 #include <rte_interrupts.h>
65 #include <rte_pci.h>
66 #include <rte_random.h>
67 #include <rte_debug.h>
68 #include <rte_ether.h>
69 #include <rte_ethdev.h>
70 #include <rte_ring.h>
71 #include <rte_mempool.h>
72 #include <rte_mbuf.h>
73 
74 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
75 
76 #define NB_MBUF   8192
77 
78 #define MAX_PKT_BURST 32
79 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
80 
81 /*
82  * Configurable number of RX/TX ring descriptors
83  */
84 #define RTE_TEST_RX_DESC_DEFAULT 128
85 #define RTE_TEST_TX_DESC_DEFAULT 512
86 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
87 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
88 
89 /* ethernet addresses of ports */
90 static struct ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
91 
92 /* mask of enabled ports */
93 static uint32_t lsi_enabled_port_mask = 0;
94 
95 static unsigned int lsi_rx_queue_per_lcore = 1;
96 
97 /* destination port for L2 forwarding */
98 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
99 
100 #define MAX_PKT_BURST 32
101 
102 #define MAX_RX_QUEUE_PER_LCORE 16
103 #define MAX_TX_QUEUE_PER_PORT 16
104 struct lcore_queue_conf {
105 	unsigned n_rx_port;
106 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
107 	unsigned tx_queue_id;
108 } __rte_cache_aligned;
109 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
110 
111 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
112 
113 static const struct rte_eth_conf port_conf = {
114 	.rxmode = {
115 		.split_hdr_size = 0,
116 		.header_split   = 0, /**< Header Split disabled */
117 		.hw_ip_checksum = 0, /**< IP checksum offload disabled */
118 		.hw_vlan_filter = 0, /**< VLAN filtering disabled */
119 		.jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
120 		.hw_strip_crc   = 0, /**< CRC stripped by hardware */
121 	},
122 	.txmode = {
123 		.mq_mode = ETH_MQ_TX_NONE,
124 	},
125 	.intr_conf = {
126 		.lsc = 1, /**< lsc interrupt feature enabled */
127 	},
128 };
129 
130 struct rte_mempool * lsi_pktmbuf_pool = NULL;
131 
132 /* Per-port statistics struct */
133 struct lsi_port_statistics {
134 	uint64_t tx;
135 	uint64_t rx;
136 	uint64_t dropped;
137 } __rte_cache_aligned;
138 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
139 
140 /* A tsc-based timer responsible for triggering statistics printout */
141 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
142 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
143 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
144 
145 /* Print out statistics on packets dropped */
146 static void
147 print_stats(void)
148 {
149 	struct rte_eth_link link;
150 	uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
151 	unsigned portid;
152 
153 	total_packets_dropped = 0;
154 	total_packets_tx = 0;
155 	total_packets_rx = 0;
156 
157 	const char clr[] = { 27, '[', '2', 'J', '\0' };
158 	const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
159 
160 		/* Clear screen and move to top left */
161 	printf("%s%s", clr, topLeft);
162 
163 	printf("\nPort statistics ====================================");
164 
165 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
166 		/* skip ports that are not enabled */
167 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
168 			continue;
169 
170 		memset(&link, 0, sizeof(link));
171 		rte_eth_link_get_nowait((uint8_t)portid, &link);
172 		printf("\nStatistics for port %u ------------------------------"
173 			   "\nLink status: %25s"
174 			   "\nLink speed: %26u"
175 			   "\nLink duplex: %25s"
176 			   "\nPackets sent: %24"PRIu64
177 			   "\nPackets received: %20"PRIu64
178 			   "\nPackets dropped: %21"PRIu64,
179 			   portid,
180 			   (link.link_status ? "Link up" : "Link down"),
181 			   (unsigned)link.link_speed,
182 			   (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
183 					"full-duplex" : "half-duplex"),
184 			   port_statistics[portid].tx,
185 			   port_statistics[portid].rx,
186 			   port_statistics[portid].dropped);
187 
188 		total_packets_dropped += port_statistics[portid].dropped;
189 		total_packets_tx += port_statistics[portid].tx;
190 		total_packets_rx += port_statistics[portid].rx;
191 	}
192 	printf("\nAggregate statistics ==============================="
193 		   "\nTotal packets sent: %18"PRIu64
194 		   "\nTotal packets received: %14"PRIu64
195 		   "\nTotal packets dropped: %15"PRIu64,
196 		   total_packets_tx,
197 		   total_packets_rx,
198 		   total_packets_dropped);
199 	printf("\n====================================================\n");
200 }
201 
202 static void
203 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
204 {
205 	struct ether_hdr *eth;
206 	void *tmp;
207 	unsigned dst_port = lsi_dst_ports[portid];
208 	int sent;
209 	struct rte_eth_dev_tx_buffer *buffer;
210 
211 	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
212 
213 	/* 02:00:00:00:00:xx */
214 	tmp = &eth->d_addr.addr_bytes[0];
215 	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
216 
217 	/* src addr */
218 	ether_addr_copy(&lsi_ports_eth_addr[dst_port], &eth->s_addr);
219 
220 	buffer = tx_buffer[dst_port];
221 	sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
222 	if (sent)
223 		port_statistics[dst_port].tx += sent;
224 }
225 
226 /* main processing loop */
227 static void
228 lsi_main_loop(void)
229 {
230 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
231 	struct rte_mbuf *m;
232 	unsigned lcore_id;
233 	unsigned sent;
234 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
235 	unsigned i, j, portid, nb_rx;
236 	struct lcore_queue_conf *qconf;
237 	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
238 			BURST_TX_DRAIN_US;
239 	struct rte_eth_dev_tx_buffer *buffer;
240 
241 	prev_tsc = 0;
242 	timer_tsc = 0;
243 
244 	lcore_id = rte_lcore_id();
245 	qconf = &lcore_queue_conf[lcore_id];
246 
247 	if (qconf->n_rx_port == 0) {
248 		RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
249 		return;
250 	}
251 
252 	RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
253 
254 	for (i = 0; i < qconf->n_rx_port; i++) {
255 
256 		portid = qconf->rx_port_list[i];
257 		RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
258 			portid);
259 	}
260 
261 	while (1) {
262 
263 		cur_tsc = rte_rdtsc();
264 
265 		/*
266 		 * TX burst queue drain
267 		 */
268 		diff_tsc = cur_tsc - prev_tsc;
269 		if (unlikely(diff_tsc > drain_tsc)) {
270 
271 			for (i = 0; i < qconf->n_rx_port; i++) {
272 
273 				portid = lsi_dst_ports[qconf->rx_port_list[i]];
274 				buffer = tx_buffer[portid];
275 
276 				sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
277 				if (sent)
278 					port_statistics[portid].tx += sent;
279 
280 			}
281 
282 			/* if timer is enabled */
283 			if (timer_period > 0) {
284 
285 				/* advance the timer */
286 				timer_tsc += diff_tsc;
287 
288 				/* if timer has reached its timeout */
289 				if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
290 
291 					/* do this only on master core */
292 					if (lcore_id == rte_get_master_lcore()) {
293 						print_stats();
294 						/* reset the timer */
295 						timer_tsc = 0;
296 					}
297 				}
298 			}
299 
300 			prev_tsc = cur_tsc;
301 		}
302 
303 		/*
304 		 * Read packet from RX queues
305 		 */
306 		for (i = 0; i < qconf->n_rx_port; i++) {
307 
308 			portid = qconf->rx_port_list[i];
309 			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
310 						 pkts_burst, MAX_PKT_BURST);
311 
312 			port_statistics[portid].rx += nb_rx;
313 
314 			for (j = 0; j < nb_rx; j++) {
315 				m = pkts_burst[j];
316 				rte_prefetch0(rte_pktmbuf_mtod(m, void *));
317 				lsi_simple_forward(m, portid);
318 			}
319 		}
320 	}
321 }
322 
323 static int
324 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
325 {
326 	lsi_main_loop();
327 	return 0;
328 }
329 
330 /* display usage */
331 static void
332 lsi_usage(const char *prgname)
333 {
334 	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
335 		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
336 		"  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
337 		"  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
338 			prgname);
339 }
340 
341 static int
342 lsi_parse_portmask(const char *portmask)
343 {
344 	char *end = NULL;
345 	unsigned long pm;
346 
347 	/* parse hexadecimal string */
348 	pm = strtoul(portmask, &end, 16);
349 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
350 		return -1;
351 
352 	if (pm == 0)
353 		return -1;
354 
355 	return pm;
356 }
357 
358 static unsigned int
359 lsi_parse_nqueue(const char *q_arg)
360 {
361 	char *end = NULL;
362 	unsigned long n;
363 
364 	/* parse hexadecimal string */
365 	n = strtoul(q_arg, &end, 10);
366 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
367 		return 0;
368 	if (n == 0)
369 		return 0;
370 	if (n >= MAX_RX_QUEUE_PER_LCORE)
371 		return 0;
372 
373 	return n;
374 }
375 
376 static int
377 lsi_parse_timer_period(const char *q_arg)
378 {
379 	char *end = NULL;
380 	int n;
381 
382 	/* parse number string */
383 	n = strtol(q_arg, &end, 10);
384 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
385 		return -1;
386 	if (n >= MAX_TIMER_PERIOD)
387 		return -1;
388 
389 	return n;
390 }
391 
392 /* Parse the argument given in the command line of the application */
393 static int
394 lsi_parse_args(int argc, char **argv)
395 {
396 	int opt, ret;
397 	char **argvopt;
398 	int option_index;
399 	char *prgname = argv[0];
400 	static struct option lgopts[] = {
401 		{NULL, 0, 0, 0}
402 	};
403 
404 	argvopt = argv;
405 
406 	while ((opt = getopt_long(argc, argvopt, "p:q:T:",
407 				  lgopts, &option_index)) != EOF) {
408 
409 		switch (opt) {
410 		/* portmask */
411 		case 'p':
412 			lsi_enabled_port_mask = lsi_parse_portmask(optarg);
413 			if (lsi_enabled_port_mask == 0) {
414 				printf("invalid portmask\n");
415 				lsi_usage(prgname);
416 				return -1;
417 			}
418 			break;
419 
420 		/* nqueue */
421 		case 'q':
422 			lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
423 			if (lsi_rx_queue_per_lcore == 0) {
424 				printf("invalid queue number\n");
425 				lsi_usage(prgname);
426 				return -1;
427 			}
428 			break;
429 
430 		/* timer period */
431 		case 'T':
432 			timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
433 			if (timer_period < 0) {
434 				printf("invalid timer period\n");
435 				lsi_usage(prgname);
436 				return -1;
437 			}
438 			break;
439 
440 		/* long options */
441 		case 0:
442 			lsi_usage(prgname);
443 			return -1;
444 
445 		default:
446 			lsi_usage(prgname);
447 			return -1;
448 		}
449 	}
450 
451 	if (optind >= 0)
452 		argv[optind-1] = prgname;
453 
454 	ret = optind-1;
455 	optind = 0; /* reset getopt lib */
456 	return ret;
457 }
458 
459 /**
460  * It will be called as the callback for specified port after a LSI interrupt
461  * has been fully handled. This callback needs to be implemented carefully as
462  * it will be called in the interrupt host thread which is different from the
463  * application main thread.
464  *
465  * @param port_id
466  *  Port id.
467  * @param type
468  *  event type.
469  * @param param
470  *  Pointer to(address of) the parameters.
471  *
472  * @return
473  *  void.
474  */
475 static void
476 lsi_event_callback(uint8_t port_id, enum rte_eth_event_type type, void *param)
477 {
478 	struct rte_eth_link link;
479 
480 	RTE_SET_USED(param);
481 
482 	printf("\n\nIn registered callback...\n");
483 	printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
484 	rte_eth_link_get_nowait(port_id, &link);
485 	if (link.link_status) {
486 		printf("Port %d Link Up - speed %u Mbps - %s\n\n",
487 				port_id, (unsigned)link.link_speed,
488 			(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
489 				("full-duplex") : ("half-duplex"));
490 	} else
491 		printf("Port %d Link Down\n\n", port_id);
492 }
493 
494 /* Check the link status of all ports in up to 9s, and print them finally */
495 static void
496 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
497 {
498 #define CHECK_INTERVAL 100 /* 100ms */
499 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
500 	uint8_t portid, count, all_ports_up, print_flag = 0;
501 	struct rte_eth_link link;
502 
503 	printf("\nChecking link status");
504 	fflush(stdout);
505 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
506 		all_ports_up = 1;
507 		for (portid = 0; portid < port_num; portid++) {
508 			if ((port_mask & (1 << portid)) == 0)
509 				continue;
510 			memset(&link, 0, sizeof(link));
511 			rte_eth_link_get_nowait(portid, &link);
512 			/* print link status if flag set */
513 			if (print_flag == 1) {
514 				if (link.link_status)
515 					printf("Port %d Link Up - speed %u "
516 						"Mbps - %s\n", (uint8_t)portid,
517 						(unsigned)link.link_speed,
518 				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
519 					("full-duplex") : ("half-duplex\n"));
520 				else
521 					printf("Port %d Link Down\n",
522 							(uint8_t)portid);
523 				continue;
524 			}
525 			/* clear all_ports_up flag if any link down */
526 			if (link.link_status == ETH_LINK_DOWN) {
527 				all_ports_up = 0;
528 				break;
529 			}
530 		}
531 		/* after finally printing all link status, get out */
532 		if (print_flag == 1)
533 			break;
534 
535 		if (all_ports_up == 0) {
536 			printf(".");
537 			fflush(stdout);
538 			rte_delay_ms(CHECK_INTERVAL);
539 		}
540 
541 		/* set the print_flag if all ports up or timeout */
542 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
543 			print_flag = 1;
544 			printf("done\n");
545 		}
546 	}
547 }
548 
549 int
550 main(int argc, char **argv)
551 {
552 	struct lcore_queue_conf *qconf;
553 	struct rte_eth_dev_info dev_info;
554 	int ret;
555 	uint8_t nb_ports;
556 	uint8_t portid, portid_last = 0;
557 	unsigned lcore_id, rx_lcore_id;
558 	unsigned nb_ports_in_mask = 0;
559 
560 	/* init EAL */
561 	ret = rte_eal_init(argc, argv);
562 	if (ret < 0)
563 		rte_exit(EXIT_FAILURE, "rte_eal_init failed");
564 	argc -= ret;
565 	argv += ret;
566 
567 	/* parse application arguments (after the EAL ones) */
568 	ret = lsi_parse_args(argc, argv);
569 	if (ret < 0)
570 		rte_exit(EXIT_FAILURE, "Invalid arguments");
571 
572 	/* create the mbuf pool */
573 	lsi_pktmbuf_pool =
574 		rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
575 			RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
576 	if (lsi_pktmbuf_pool == NULL)
577 		rte_panic("Cannot init mbuf pool\n");
578 
579 	nb_ports = rte_eth_dev_count();
580 	if (nb_ports == 0)
581 		rte_panic("No Ethernet port - bye\n");
582 
583 	/*
584 	 * Each logical core is assigned a dedicated TX queue on each port.
585 	 */
586 	for (portid = 0; portid < nb_ports; portid++) {
587 		/* skip ports that are not enabled */
588 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
589 			continue;
590 
591 		/* save the destination port id */
592 		if (nb_ports_in_mask % 2) {
593 			lsi_dst_ports[portid] = portid_last;
594 			lsi_dst_ports[portid_last] = portid;
595 		}
596 		else
597 			portid_last = portid;
598 
599 		nb_ports_in_mask++;
600 
601 		rte_eth_dev_info_get(portid, &dev_info);
602 	}
603 	if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
604 		rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
605 				"but it should be even and at least 2\n",
606 				nb_ports_in_mask);
607 
608 	rx_lcore_id = 0;
609 	qconf = &lcore_queue_conf[rx_lcore_id];
610 
611 	/* Initialize the port/queue configuration of each logical core */
612 	for (portid = 0; portid < nb_ports; portid++) {
613 		/* skip ports that are not enabled */
614 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
615 			continue;
616 
617 		/* get the lcore_id for this port */
618 		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
619 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
620 		       lsi_rx_queue_per_lcore) {
621 
622 			rx_lcore_id++;
623 			if (rx_lcore_id >= RTE_MAX_LCORE)
624 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
625 		}
626 		if (qconf != &lcore_queue_conf[rx_lcore_id])
627 			/* Assigned a new logical core in the loop above. */
628 			qconf = &lcore_queue_conf[rx_lcore_id];
629 
630 		qconf->rx_port_list[qconf->n_rx_port] = portid;
631 		qconf->n_rx_port++;
632 		printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
633 	}
634 
635 	/* Initialise each port */
636 	for (portid = 0; portid < nb_ports; portid++) {
637 		/* skip ports that are not enabled */
638 		if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
639 			printf("Skipping disabled port %u\n", (unsigned) portid);
640 			continue;
641 		}
642 		/* init port */
643 		printf("Initializing port %u... ", (unsigned) portid);
644 		fflush(stdout);
645 		ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
646 		if (ret < 0)
647 			rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
648 				  ret, (unsigned) portid);
649 
650 		/* register lsi interrupt callback, need to be after
651 		 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
652 		 * lsc interrupt will be present, and below callback to
653 		 * be registered will never be called.
654 		 */
655 		rte_eth_dev_callback_register(portid,
656 			RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
657 
658 		rte_eth_macaddr_get(portid,
659 				    &lsi_ports_eth_addr[portid]);
660 
661 		/* init one RX queue */
662 		fflush(stdout);
663 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
664 					     rte_eth_dev_socket_id(portid),
665 					     NULL,
666 					     lsi_pktmbuf_pool);
667 		if (ret < 0)
668 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
669 				  ret, (unsigned) portid);
670 
671 		/* init one TX queue logical core on each port */
672 		fflush(stdout);
673 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
674 				rte_eth_dev_socket_id(portid),
675 				NULL);
676 		if (ret < 0)
677 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
678 				  ret, (unsigned) portid);
679 
680 		/* Initialize TX buffers */
681 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
682 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
683 				rte_eth_dev_socket_id(portid));
684 		if (tx_buffer[portid] == NULL)
685 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
686 					(unsigned) portid);
687 
688 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
689 
690 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
691 				rte_eth_tx_buffer_count_callback,
692 				&port_statistics[portid].dropped);
693 		if (ret < 0)
694 			rte_exit(EXIT_FAILURE, "Cannot set error callback for "
695 					"tx buffer on port %u\n", (unsigned) portid);
696 
697 		/* Start device */
698 		ret = rte_eth_dev_start(portid);
699 		if (ret < 0)
700 			rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
701 				  ret, (unsigned) portid);
702 		printf("done:\n");
703 
704 		rte_eth_promiscuous_enable(portid);
705 
706 		printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
707 				(unsigned) portid,
708 				lsi_ports_eth_addr[portid].addr_bytes[0],
709 				lsi_ports_eth_addr[portid].addr_bytes[1],
710 				lsi_ports_eth_addr[portid].addr_bytes[2],
711 				lsi_ports_eth_addr[portid].addr_bytes[3],
712 				lsi_ports_eth_addr[portid].addr_bytes[4],
713 				lsi_ports_eth_addr[portid].addr_bytes[5]);
714 
715 		/* initialize port stats */
716 		memset(&port_statistics, 0, sizeof(port_statistics));
717 	}
718 
719 	check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
720 
721 	/* launch per-lcore init on every lcore */
722 	rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
723 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
724 		if (rte_eal_wait_lcore(lcore_id) < 0)
725 			return -1;
726 	}
727 
728 	return 0;
729 }
730