xref: /dpdk/examples/link_status_interrupt/main.c (revision 9c30a6f3c9a456e8111a2b1e5f6c2c02a62025b6)
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 <setjmp.h>
13 #include <stdarg.h>
14 #include <ctype.h>
15 #include <errno.h>
16 #include <getopt.h>
17 
18 #include <rte_common.h>
19 #include <rte_log.h>
20 #include <rte_malloc.h>
21 #include <rte_memory.h>
22 #include <rte_memcpy.h>
23 #include <rte_eal.h>
24 #include <rte_launch.h>
25 #include <rte_atomic.h>
26 #include <rte_cycles.h>
27 #include <rte_prefetch.h>
28 #include <rte_lcore.h>
29 #include <rte_per_lcore.h>
30 #include <rte_branch_prediction.h>
31 #include <rte_interrupts.h>
32 #include <rte_random.h>
33 #include <rte_debug.h>
34 #include <rte_ether.h>
35 #include <rte_ethdev.h>
36 #include <rte_mempool.h>
37 #include <rte_mbuf.h>
38 
39 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
40 
41 #define NB_MBUF   8192
42 
43 #define MAX_PKT_BURST 32
44 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
45 
46 /*
47  * Configurable number of RX/TX ring descriptors
48  */
49 #define RTE_TEST_RX_DESC_DEFAULT 1024
50 #define RTE_TEST_TX_DESC_DEFAULT 1024
51 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
52 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
53 
54 /* ethernet addresses of ports */
55 static struct rte_ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
56 
57 /* mask of enabled ports */
58 static uint32_t lsi_enabled_port_mask = 0;
59 
60 static unsigned int lsi_rx_queue_per_lcore = 1;
61 
62 /* destination port for L2 forwarding */
63 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
64 
65 #define MAX_PKT_BURST 32
66 
67 #define MAX_RX_QUEUE_PER_LCORE 16
68 #define MAX_TX_QUEUE_PER_PORT 16
69 /* List of queues must be polled for a give lcore. 8< */
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 /* >8 End of list of queues to be polled. */
77 
78 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
79 
80 /* Global configuration stored in a static structure. 8< */
81 static struct rte_eth_conf port_conf = {
82 	.rxmode = {
83 		.split_hdr_size = 0,
84 	},
85 	.txmode = {
86 		.mq_mode = ETH_MQ_TX_NONE,
87 	},
88 	.intr_conf = {
89 		.lsc = 1, /**< lsc interrupt feature enabled */
90 	},
91 };
92 /* >8 End of global configuration stored in a static structure. */
93 
94 struct rte_mempool * lsi_pktmbuf_pool = NULL;
95 
96 /* Per-port statistics struct */
97 struct lsi_port_statistics {
98 	uint64_t tx;
99 	uint64_t rx;
100 	uint64_t dropped;
101 } __rte_cache_aligned;
102 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
103 
104 /* A tsc-based timer responsible for triggering statistics printout */
105 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
106 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
107 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
108 
109 /* Print out statistics on packets dropped */
110 static void
111 print_stats(void)
112 {
113 	struct rte_eth_link link;
114 	uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
115 	uint16_t portid;
116 
117 	total_packets_dropped = 0;
118 	total_packets_tx = 0;
119 	total_packets_rx = 0;
120 
121 	const char clr[] = { 27, '[', '2', 'J', '\0' };
122 	const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
123 	int link_get_err;
124 
125 		/* Clear screen and move to top left */
126 	printf("%s%s", clr, topLeft);
127 
128 	printf("\nPort statistics ====================================");
129 
130 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
131 		/* skip ports that are not enabled */
132 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
133 			continue;
134 
135 		memset(&link, 0, sizeof(link));
136 		link_get_err = rte_eth_link_get_nowait(portid, &link);
137 		printf("\nStatistics for port %u ------------------------------"
138 			   "\nLink status: %25s"
139 			   "\nLink speed: %26s"
140 			   "\nLink duplex: %25s"
141 			   "\nPackets sent: %24"PRIu64
142 			   "\nPackets received: %20"PRIu64
143 			   "\nPackets dropped: %21"PRIu64,
144 			   portid,
145 			   link_get_err < 0 ? "Link get failed" :
146 			   (link.link_status ? "Link up" : "Link down"),
147 			   link_get_err < 0 ? "0" :
148 			   rte_eth_link_speed_to_str(link.link_speed),
149 			   link_get_err < 0 ? "Link get failed" :
150 			   (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
151 					"full-duplex" : "half-duplex"),
152 			   port_statistics[portid].tx,
153 			   port_statistics[portid].rx,
154 			   port_statistics[portid].dropped);
155 
156 		total_packets_dropped += port_statistics[portid].dropped;
157 		total_packets_tx += port_statistics[portid].tx;
158 		total_packets_rx += port_statistics[portid].rx;
159 	}
160 	printf("\nAggregate statistics ==============================="
161 		   "\nTotal packets sent: %18"PRIu64
162 		   "\nTotal packets received: %14"PRIu64
163 		   "\nTotal packets dropped: %15"PRIu64,
164 		   total_packets_tx,
165 		   total_packets_rx,
166 		   total_packets_dropped);
167 	printf("\n====================================================\n");
168 
169 	fflush(stdout);
170 }
171 
172 /* Replacing the source and destination MAC addresses. 8< */
173 static void
174 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
175 {
176 	struct rte_ether_hdr *eth;
177 	void *tmp;
178 	unsigned dst_port = lsi_dst_ports[portid];
179 	int sent;
180 	struct rte_eth_dev_tx_buffer *buffer;
181 
182 	eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
183 
184 	/* 02:00:00:00:00:xx */
185 	tmp = &eth->d_addr.addr_bytes[0];
186 	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
187 
188 	/* src addr */
189 	rte_ether_addr_copy(&lsi_ports_eth_addr[dst_port], &eth->s_addr);
190 
191 	buffer = tx_buffer[dst_port];
192 	sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
193 	if (sent)
194 		port_statistics[dst_port].tx += sent;
195 }
196 /* >8 End of replacing the source and destination MAC addresses. */
197 
198 /* main processing loop */
199 static void
200 lsi_main_loop(void)
201 {
202 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
203 	struct rte_mbuf *m;
204 	unsigned lcore_id;
205 	unsigned sent;
206 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
207 	unsigned i, j, portid, nb_rx;
208 	struct lcore_queue_conf *qconf;
209 	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
210 			BURST_TX_DRAIN_US;
211 	struct rte_eth_dev_tx_buffer *buffer;
212 
213 	prev_tsc = 0;
214 	timer_tsc = 0;
215 
216 	lcore_id = rte_lcore_id();
217 	qconf = &lcore_queue_conf[lcore_id];
218 
219 	if (qconf->n_rx_port == 0) {
220 		RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
221 		return;
222 	}
223 
224 	RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
225 
226 	for (i = 0; i < qconf->n_rx_port; i++) {
227 
228 		portid = qconf->rx_port_list[i];
229 		RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
230 			portid);
231 	}
232 
233 	while (1) {
234 
235 		/* Draining TX queue in its main loop. 8< */
236 		cur_tsc = rte_rdtsc();
237 
238 		/*
239 		 * TX burst queue drain
240 		 */
241 		diff_tsc = cur_tsc - prev_tsc;
242 		if (unlikely(diff_tsc > drain_tsc)) {
243 
244 			for (i = 0; i < qconf->n_rx_port; i++) {
245 
246 				portid = lsi_dst_ports[qconf->rx_port_list[i]];
247 				buffer = tx_buffer[portid];
248 
249 				sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
250 				if (sent)
251 					port_statistics[portid].tx += sent;
252 
253 			}
254 
255 			/* if timer is enabled */
256 			if (timer_period > 0) {
257 
258 				/* advance the timer */
259 				timer_tsc += diff_tsc;
260 
261 				/* if timer has reached its timeout */
262 				if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
263 
264 					/* do this only on main core */
265 					if (lcore_id == rte_get_main_lcore()) {
266 						print_stats();
267 						/* reset the timer */
268 						timer_tsc = 0;
269 					}
270 				}
271 			}
272 
273 			prev_tsc = cur_tsc;
274 		}
275 		/* >8 End of draining TX queue in its main loop. */
276 
277 		/* Read packet from RX queues. 8< */
278 		for (i = 0; i < qconf->n_rx_port; i++) {
279 
280 			portid = qconf->rx_port_list[i];
281 			nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
282 						 pkts_burst, MAX_PKT_BURST);
283 
284 			port_statistics[portid].rx += nb_rx;
285 
286 			for (j = 0; j < nb_rx; j++) {
287 				m = pkts_burst[j];
288 				rte_prefetch0(rte_pktmbuf_mtod(m, void *));
289 				lsi_simple_forward(m, portid);
290 			}
291 		}
292 		/* >8 End of reading packet from RX queues. */
293 	}
294 }
295 
296 static int
297 lsi_launch_one_lcore(__rte_unused void *dummy)
298 {
299 	lsi_main_loop();
300 	return 0;
301 }
302 
303 /* display usage */
304 static void
305 lsi_usage(const char *prgname)
306 {
307 	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
308 		"  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
309 		"  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
310 		"  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
311 			prgname);
312 }
313 
314 static int
315 lsi_parse_portmask(const char *portmask)
316 {
317 	char *end = NULL;
318 	unsigned long pm;
319 
320 	/* parse hexadecimal string */
321 	pm = strtoul(portmask, &end, 16);
322 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
323 		return 0;
324 
325 	return pm;
326 }
327 
328 static unsigned int
329 lsi_parse_nqueue(const char *q_arg)
330 {
331 	char *end = NULL;
332 	unsigned long n;
333 
334 	/* parse hexadecimal string */
335 	n = strtoul(q_arg, &end, 10);
336 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
337 		return 0;
338 	if (n == 0)
339 		return 0;
340 	if (n >= MAX_RX_QUEUE_PER_LCORE)
341 		return 0;
342 
343 	return n;
344 }
345 
346 static int
347 lsi_parse_timer_period(const char *q_arg)
348 {
349 	char *end = NULL;
350 	int n;
351 
352 	/* parse number string */
353 	n = strtol(q_arg, &end, 10);
354 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
355 		return -1;
356 	if (n >= MAX_TIMER_PERIOD)
357 		return -1;
358 
359 	return n;
360 }
361 
362 /* Parse the argument given in the command line of the application */
363 static int
364 lsi_parse_args(int argc, char **argv)
365 {
366 	int opt, ret;
367 	char **argvopt;
368 	int option_index;
369 	char *prgname = argv[0];
370 	static struct option lgopts[] = {
371 		{NULL, 0, 0, 0}
372 	};
373 
374 	argvopt = argv;
375 
376 	while ((opt = getopt_long(argc, argvopt, "p:q:T:",
377 				  lgopts, &option_index)) != EOF) {
378 
379 		switch (opt) {
380 		/* portmask */
381 		case 'p':
382 			lsi_enabled_port_mask = lsi_parse_portmask(optarg);
383 			if (lsi_enabled_port_mask == 0) {
384 				printf("invalid portmask\n");
385 				lsi_usage(prgname);
386 				return -1;
387 			}
388 			break;
389 
390 		/* nqueue */
391 		case 'q':
392 			lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
393 			if (lsi_rx_queue_per_lcore == 0) {
394 				printf("invalid queue number\n");
395 				lsi_usage(prgname);
396 				return -1;
397 			}
398 			break;
399 
400 		/* timer period */
401 		case 'T':
402 			timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
403 			if (timer_period < 0) {
404 				printf("invalid timer period\n");
405 				lsi_usage(prgname);
406 				return -1;
407 			}
408 			break;
409 
410 		/* long options */
411 		case 0:
412 			lsi_usage(prgname);
413 			return -1;
414 
415 		default:
416 			lsi_usage(prgname);
417 			return -1;
418 		}
419 	}
420 
421 	if (optind >= 0)
422 		argv[optind-1] = prgname;
423 
424 	ret = optind-1;
425 	optind = 1; /* reset getopt lib */
426 	return ret;
427 }
428 
429 /**
430  * It will be called as the callback for specified port after a LSI interrupt
431  * has been fully handled. This callback needs to be implemented carefully as
432  * it will be called in the interrupt host thread which is different from the
433  * application main thread.
434  *
435  * @param port_id
436  *  Port id.
437  * @param type
438  *  event type.
439  * @param param
440  *  Pointer to(address of) the parameters.
441  *
442  * @return
443  *  int.
444  */
445 
446 /* lsi_event_callback 8< */
447 static int
448 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
449 		    void *ret_param)
450 {
451 	struct rte_eth_link link;
452 	int ret;
453 	char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
454 
455 	RTE_SET_USED(param);
456 	RTE_SET_USED(ret_param);
457 
458 	printf("\n\nIn registered callback...\n");
459 	printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
460 	ret = rte_eth_link_get_nowait(port_id, &link);
461 	if (ret < 0) {
462 		printf("Failed link get on port %d: %s\n",
463 		       port_id, rte_strerror(-ret));
464 		return ret;
465 	}
466 	rte_eth_link_to_str(link_status_text, sizeof(link_status_text), &link);
467 	printf("Port %d %s\n\n", port_id, link_status_text);
468 
469 	return 0;
470 }
471 /* >8 End of registering one or more callbacks. */
472 
473 /* Check the link status of all ports in up to 9s, and print them finally */
474 static void
475 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
476 {
477 #define CHECK_INTERVAL 100 /* 100ms */
478 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
479 	uint8_t count, all_ports_up, print_flag = 0;
480 	uint16_t portid;
481 	struct rte_eth_link link;
482 	int ret;
483 	char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
484 
485 	printf("\nChecking link status");
486 	fflush(stdout);
487 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
488 		all_ports_up = 1;
489 		for (portid = 0; portid < port_num; portid++) {
490 			if ((port_mask & (1 << portid)) == 0)
491 				continue;
492 			memset(&link, 0, sizeof(link));
493 			ret = rte_eth_link_get_nowait(portid, &link);
494 			if (ret < 0) {
495 				all_ports_up = 0;
496 				if (print_flag == 1)
497 					printf("Port %u link get failed: %s\n",
498 						portid, rte_strerror(-ret));
499 				continue;
500 			}
501 			/* print link status if flag set */
502 			if (print_flag == 1) {
503 				rte_eth_link_to_str(link_status_text,
504 					sizeof(link_status_text), &link);
505 				printf("Port %d %s", portid,
506 				       link_status_text);
507 				continue;
508 			}
509 			/* clear all_ports_up flag if any link down */
510 			if (link.link_status == ETH_LINK_DOWN) {
511 				all_ports_up = 0;
512 				break;
513 			}
514 		}
515 		/* after finally printing all link status, get out */
516 		if (print_flag == 1)
517 			break;
518 
519 		if (all_ports_up == 0) {
520 			printf(".");
521 			fflush(stdout);
522 			rte_delay_ms(CHECK_INTERVAL);
523 		}
524 
525 		/* set the print_flag if all ports up or timeout */
526 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
527 			print_flag = 1;
528 			printf("done\n");
529 		}
530 	}
531 }
532 
533 int
534 main(int argc, char **argv)
535 {
536 	struct lcore_queue_conf *qconf;
537 	int ret;
538 	uint16_t nb_ports;
539 	uint16_t portid, portid_last = 0;
540 	unsigned lcore_id, rx_lcore_id;
541 	unsigned nb_ports_in_mask = 0;
542 
543 	/* init EAL */
544 	ret = rte_eal_init(argc, argv);
545 	if (ret < 0)
546 		rte_exit(EXIT_FAILURE, "rte_eal_init failed");
547 	argc -= ret;
548 	argv += ret;
549 
550 	/* parse application arguments (after the EAL ones) */
551 	ret = lsi_parse_args(argc, argv);
552 	if (ret < 0)
553 		rte_exit(EXIT_FAILURE, "Invalid arguments");
554 
555 	/* create the mbuf pool */
556 	lsi_pktmbuf_pool =
557 		rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
558 			RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
559 	if (lsi_pktmbuf_pool == NULL)
560 		rte_panic("Cannot init mbuf pool\n");
561 
562 	nb_ports = rte_eth_dev_count_avail();
563 	if (nb_ports == 0)
564 		rte_panic("No Ethernet port - bye\n");
565 
566 	/* Each logical core is assigned a dedicated TX queue on each port. 8< */
567 	for (portid = 0; portid < nb_ports; portid++) {
568 		/* skip ports that are not enabled */
569 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
570 			continue;
571 
572 		/* save the destination port id */
573 		if (nb_ports_in_mask % 2) {
574 			lsi_dst_ports[portid] = portid_last;
575 			lsi_dst_ports[portid_last] = portid;
576 		}
577 		else
578 			portid_last = portid;
579 
580 		nb_ports_in_mask++;
581 	}
582 	/* >8 End of assigning logical core. */
583 	if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
584 		rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
585 				"but it should be even and at least 2\n",
586 				nb_ports_in_mask);
587 
588 	rx_lcore_id = 0;
589 	qconf = &lcore_queue_conf[rx_lcore_id];
590 
591 	/* Initialize the port/queue configuration of each logical core */
592 	for (portid = 0; portid < nb_ports; portid++) {
593 		/* skip ports that are not enabled */
594 		if ((lsi_enabled_port_mask & (1 << portid)) == 0)
595 			continue;
596 
597 		/* get the lcore_id for this port */
598 		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
599 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
600 		       lsi_rx_queue_per_lcore) {
601 
602 			rx_lcore_id++;
603 			if (rx_lcore_id >= RTE_MAX_LCORE)
604 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
605 		}
606 		if (qconf != &lcore_queue_conf[rx_lcore_id])
607 			/* Assigned a new logical core in the loop above. */
608 			qconf = &lcore_queue_conf[rx_lcore_id];
609 
610 		qconf->rx_port_list[qconf->n_rx_port] = portid;
611 		qconf->n_rx_port++;
612 		printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
613 	}
614 
615 	/* Initialise each port */
616 	for (portid = 0; portid < nb_ports; portid++) {
617 		struct rte_eth_rxconf rxq_conf;
618 		struct rte_eth_txconf txq_conf;
619 		struct rte_eth_conf local_port_conf = port_conf;
620 		struct rte_eth_dev_info dev_info;
621 
622 		/* skip ports that are not enabled */
623 		if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
624 			printf("Skipping disabled port %u\n", (unsigned) portid);
625 			continue;
626 		}
627 		/* init port */
628 		printf("Initializing port %u... ", (unsigned) portid);
629 		fflush(stdout);
630 
631 		ret = rte_eth_dev_info_get(portid, &dev_info);
632 		if (ret != 0)
633 			rte_exit(EXIT_FAILURE,
634 				"Error during getting device (port %u) info: %s\n",
635 				portid, strerror(-ret));
636 
637 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
638 			local_port_conf.txmode.offloads |=
639 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
640 		/* Configure RX and TX queues. 8< */
641 		ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
642 		if (ret < 0)
643 			rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
644 				  ret, (unsigned) portid);
645 		/* >8 End of configure RX and TX queues. */
646 
647 		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
648 						       &nb_txd);
649 		if (ret < 0)
650 			rte_exit(EXIT_FAILURE,
651 				 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
652 				 ret, (unsigned) portid);
653 
654 		/* register lsi interrupt callback, need to be after
655 		 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
656 		 * lsc interrupt will be present, and below callback to
657 		 * be registered will never be called.
658 		 */
659 
660 		/* RTE callback register. 8< */
661 		rte_eth_dev_callback_register(portid,
662 			RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
663 		/* >8 End of registering lsi interrupt callback. */
664 
665 		ret = rte_eth_macaddr_get(portid,
666 				    &lsi_ports_eth_addr[portid]);
667 		if (ret < 0)
668 			rte_exit(EXIT_FAILURE,
669 				 "rte_eth_macaddr_get: err=%d, port=%u\n",
670 				 ret, (unsigned int)portid);
671 
672 		/* init one RX queue */
673 		fflush(stdout);
674 		rxq_conf = dev_info.default_rxconf;
675 		rxq_conf.offloads = local_port_conf.rxmode.offloads;
676 		/* RX queue initialization. 8< */
677 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
678 					     rte_eth_dev_socket_id(portid),
679 					     &rxq_conf,
680 					     lsi_pktmbuf_pool);
681 		if (ret < 0)
682 			rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
683 				  ret, (unsigned) portid);
684 		/* >8 End of RX queue initialization. */
685 
686 		/* init one TX queue logical core on each port. 8< */
687 		fflush(stdout);
688 		txq_conf = dev_info.default_txconf;
689 		txq_conf.offloads = local_port_conf.txmode.offloads;
690 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
691 				rte_eth_dev_socket_id(portid),
692 				&txq_conf);
693 		if (ret < 0)
694 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
695 				  ret, (unsigned) portid);
696 		/* >8 End of init one TX queue. */
697 
698 		/* Initialize TX buffers */
699 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
700 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
701 				rte_eth_dev_socket_id(portid));
702 		if (tx_buffer[portid] == NULL)
703 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
704 					(unsigned) portid);
705 
706 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
707 
708 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
709 				rte_eth_tx_buffer_count_callback,
710 				&port_statistics[portid].dropped);
711 		if (ret < 0)
712 			rte_exit(EXIT_FAILURE, "Cannot set error callback for "
713 					"tx buffer on port %u\n", (unsigned) portid);
714 
715 		/* Start device */
716 		ret = rte_eth_dev_start(portid);
717 		if (ret < 0)
718 			rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
719 				  ret, (unsigned) portid);
720 		printf("done:\n");
721 
722 		ret = rte_eth_promiscuous_enable(portid);
723 		if (ret != 0)
724 			rte_exit(EXIT_FAILURE,
725 				"rte_eth_promiscuous_enable: err=%s, port=%u\n",
726 				rte_strerror(-ret), portid);
727 
728 		printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
729 				(unsigned) portid,
730 				lsi_ports_eth_addr[portid].addr_bytes[0],
731 				lsi_ports_eth_addr[portid].addr_bytes[1],
732 				lsi_ports_eth_addr[portid].addr_bytes[2],
733 				lsi_ports_eth_addr[portid].addr_bytes[3],
734 				lsi_ports_eth_addr[portid].addr_bytes[4],
735 				lsi_ports_eth_addr[portid].addr_bytes[5]);
736 
737 		/* initialize port stats */
738 		memset(&port_statistics, 0, sizeof(port_statistics));
739 	}
740 
741 	check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
742 
743 	/* launch per-lcore init on every lcore */
744 	rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MAIN);
745 	RTE_LCORE_FOREACH_WORKER(lcore_id) {
746 		if (rte_eal_wait_lcore(lcore_id) < 0)
747 			return -1;
748 	}
749 
750 	/* clean up the EAL */
751 	rte_eal_cleanup();
752 
753 	return 0;
754 }
755