xref: /dpdk/examples/l2fwd-keepalive/main.c (revision 03ab51eafda992874a48c392ca66ffb577fe2b71)
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 #include <signal.h>
19 
20 #include <rte_common.h>
21 #include <rte_log.h>
22 #include <rte_malloc.h>
23 #include <rte_memory.h>
24 #include <rte_memcpy.h>
25 #include <rte_eal.h>
26 #include <rte_launch.h>
27 #include <rte_atomic.h>
28 #include <rte_cycles.h>
29 #include <rte_prefetch.h>
30 #include <rte_lcore.h>
31 #include <rte_per_lcore.h>
32 #include <rte_branch_prediction.h>
33 #include <rte_interrupts.h>
34 #include <rte_random.h>
35 #include <rte_debug.h>
36 #include <rte_ether.h>
37 #include <rte_ethdev.h>
38 #include <rte_mempool.h>
39 #include <rte_mbuf.h>
40 #include <rte_timer.h>
41 #include <rte_keepalive.h>
42 
43 #include "shm.h"
44 
45 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
46 
47 #define NB_MBUF_PER_PORT 3000
48 
49 #define MAX_PKT_BURST 32
50 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
51 
52 /*
53  * Configurable number of RX/TX ring descriptors
54  */
55 #define RTE_TEST_RX_DESC_DEFAULT 1024
56 #define RTE_TEST_TX_DESC_DEFAULT 1024
57 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
58 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
59 
60 /* ethernet addresses of ports */
61 static struct rte_ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
62 
63 /* mask of enabled ports */
64 static uint32_t l2fwd_enabled_port_mask;
65 
66 /* list of enabled ports */
67 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
68 
69 static unsigned int l2fwd_rx_queue_per_lcore = 1;
70 
71 #define MAX_RX_QUEUE_PER_LCORE 16
72 #define MAX_TX_QUEUE_PER_PORT 16
73 struct lcore_queue_conf {
74 	unsigned n_rx_port;
75 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
76 } __rte_cache_aligned;
77 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
78 
79 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
80 
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 };
89 
90 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
91 
92 /* Per-port statistics struct */
93 struct l2fwd_port_statistics {
94 	uint64_t tx;
95 	uint64_t rx;
96 	uint64_t dropped;
97 } __rte_cache_aligned;
98 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
99 
100 /* A tsc-based timer responsible for triggering statistics printout */
101 #define TIMER_MILLISECOND 1
102 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
103 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
104 static int64_t check_period = 5; /* default check cycle is 5ms */
105 
106 /* Keepalive structure */
107 struct rte_keepalive *rte_global_keepalive_info;
108 
109 /* Termination signalling */
110 static int terminate_signal_received;
111 
112 /* Termination signal handler */
113 static void handle_sigterm(__rte_unused int value)
114 {
115 	terminate_signal_received = 1;
116 }
117 
118 /* Print out statistics on packets dropped */
119 static void
120 print_stats(__rte_unused struct rte_timer *ptr_timer,
121 	__rte_unused void *ptr_data)
122 {
123 	uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
124 	uint16_t portid;
125 
126 	total_packets_dropped = 0;
127 	total_packets_tx = 0;
128 	total_packets_rx = 0;
129 
130 	const char clr[] = { 27, '[', '2', 'J', '\0' };
131 	const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
132 
133 		/* Clear screen and move to top left */
134 	printf("%s%s", clr, topLeft);
135 
136 	printf("\nPort statistics ====================================");
137 
138 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
139 		/* skip disabled ports */
140 		if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
141 			continue;
142 		printf("\nStatistics for port %u ------------------------------"
143 			   "\nPackets sent: %24"PRIu64
144 			   "\nPackets received: %20"PRIu64
145 			   "\nPackets dropped: %21"PRIu64,
146 			   portid,
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 	fflush(stdout);
165 }
166 
167 static void
168 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
169 {
170 	struct rte_ether_hdr *eth;
171 	void *tmp;
172 	int sent;
173 	unsigned dst_port;
174 	struct rte_eth_dev_tx_buffer *buffer;
175 
176 	dst_port = l2fwd_dst_ports[portid];
177 	eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
178 
179 	/* 02:00:00:00:00:xx */
180 	tmp = &eth->dst_addr.addr_bytes[0];
181 	*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
182 
183 	/* src addr */
184 	rte_ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->src_addr);
185 
186 	buffer = tx_buffer[dst_port];
187 	sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
188 	if (sent)
189 		port_statistics[dst_port].tx += sent;
190 }
191 
192 /* main processing loop */
193 static void
194 l2fwd_main_loop(void)
195 {
196 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
197 	struct rte_mbuf *m;
198 	int sent;
199 	unsigned lcore_id;
200 	uint64_t prev_tsc, diff_tsc, cur_tsc;
201 	unsigned i, j, portid, nb_rx;
202 	struct lcore_queue_conf *qconf;
203 	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
204 		/ US_PER_S * BURST_TX_DRAIN_US;
205 	struct rte_eth_dev_tx_buffer *buffer;
206 
207 	prev_tsc = 0;
208 
209 	lcore_id = rte_lcore_id();
210 	qconf = &lcore_queue_conf[lcore_id];
211 
212 	if (qconf->n_rx_port == 0) {
213 		RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
214 		return;
215 	}
216 
217 	RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
218 
219 	for (i = 0; i < qconf->n_rx_port; i++) {
220 
221 		portid = qconf->rx_port_list[i];
222 		RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
223 			portid);
224 	}
225 
226 	uint64_t tsc_initial = rte_rdtsc();
227 	uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
228 
229 	while (!terminate_signal_received) {
230 		/* Keepalive heartbeat. 8< */
231 		rte_keepalive_mark_alive(rte_global_keepalive_info);
232 
233 		cur_tsc = rte_rdtsc();
234 
235 		/*
236 		 * Die randomly within 7 secs for demo purposes if
237 		 * keepalive enabled
238 		 */
239 		if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
240 			break;
241 		/* >8 End of keepalive heartbeat. */
242 
243 		/*
244 		 * TX burst queue drain
245 		 */
246 		diff_tsc = cur_tsc - prev_tsc;
247 		if (unlikely(diff_tsc > drain_tsc)) {
248 
249 			for (i = 0; i < qconf->n_rx_port; i++) {
250 
251 				portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
252 				buffer = tx_buffer[portid];
253 
254 				sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
255 				if (sent)
256 					port_statistics[portid].tx += sent;
257 
258 			}
259 
260 			prev_tsc = cur_tsc;
261 		}
262 
263 		/*
264 		 * Read packet from RX queues
265 		 */
266 		for (i = 0; i < qconf->n_rx_port; i++) {
267 
268 			portid = qconf->rx_port_list[i];
269 			nb_rx = rte_eth_rx_burst(portid, 0,
270 						 pkts_burst, MAX_PKT_BURST);
271 
272 			port_statistics[portid].rx += nb_rx;
273 
274 			for (j = 0; j < nb_rx; j++) {
275 				m = pkts_burst[j];
276 				rte_prefetch0(rte_pktmbuf_mtod(m, void *));
277 				l2fwd_simple_forward(m, portid);
278 			}
279 		}
280 	}
281 }
282 
283 static int
284 l2fwd_launch_one_lcore(__rte_unused void *dummy)
285 {
286 	l2fwd_main_loop();
287 	return 0;
288 }
289 
290 /* display usage */
291 static void
292 l2fwd_usage(const char *prgname)
293 {
294 	printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
295 	       "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
296 	       "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
297 	       "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
298 		   "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
299 	       prgname);
300 }
301 
302 static int
303 l2fwd_parse_portmask(const char *portmask)
304 {
305 	char *end = NULL;
306 	unsigned long pm;
307 
308 	/* parse hexadecimal string */
309 	pm = strtoul(portmask, &end, 16);
310 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
311 		return 0;
312 
313 	return pm;
314 }
315 
316 static unsigned int
317 l2fwd_parse_nqueue(const char *q_arg)
318 {
319 	char *end = NULL;
320 	unsigned long n;
321 
322 	/* parse hexadecimal string */
323 	n = strtoul(q_arg, &end, 10);
324 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
325 		return 0;
326 	if (n == 0)
327 		return 0;
328 	if (n >= MAX_RX_QUEUE_PER_LCORE)
329 		return 0;
330 
331 	return n;
332 }
333 
334 static int
335 l2fwd_parse_timer_period(const char *q_arg)
336 {
337 	char *end = NULL;
338 	int n;
339 
340 	/* parse number string */
341 	n = strtol(q_arg, &end, 10);
342 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
343 		return -1;
344 	if (n >= MAX_TIMER_PERIOD)
345 		return -1;
346 
347 	return n;
348 }
349 
350 static int
351 l2fwd_parse_check_period(const char *q_arg)
352 {
353 	char *end = NULL;
354 	int n;
355 
356 	/* parse number string */
357 	n = strtol(q_arg, &end, 10);
358 	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
359 		return -1;
360 	if (n >= MAX_TIMER_PERIOD)
361 		return -1;
362 
363 	return n;
364 }
365 
366 /* Parse the argument given in the command line of the application */
367 static int
368 l2fwd_parse_args(int argc, char **argv)
369 {
370 	int opt, ret;
371 	char **argvopt;
372 	int option_index;
373 	char *prgname = argv[0];
374 	static struct option lgopts[] = {
375 		{NULL, 0, 0, 0}
376 	};
377 
378 	argvopt = argv;
379 
380 	while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
381 				  lgopts, &option_index)) != EOF) {
382 
383 		switch (opt) {
384 		/* portmask */
385 		case 'p':
386 			l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
387 			if (l2fwd_enabled_port_mask == 0) {
388 				printf("invalid portmask\n");
389 				l2fwd_usage(prgname);
390 				return -1;
391 			}
392 			break;
393 
394 		/* nqueue */
395 		case 'q':
396 			l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
397 			if (l2fwd_rx_queue_per_lcore == 0) {
398 				printf("invalid queue number\n");
399 				l2fwd_usage(prgname);
400 				return -1;
401 			}
402 			break;
403 
404 		/* timer period */
405 		case 'T':
406 			timer_period = l2fwd_parse_timer_period(optarg)
407 				* (int64_t)(1000 * TIMER_MILLISECOND);
408 			if (timer_period < 0) {
409 				printf("invalid timer period\n");
410 				l2fwd_usage(prgname);
411 				return -1;
412 			}
413 			break;
414 
415 		/* Check period */
416 		case 'K':
417 			check_period = l2fwd_parse_check_period(optarg);
418 			if (check_period < 0) {
419 				printf("invalid check period\n");
420 				l2fwd_usage(prgname);
421 				return -1;
422 			}
423 			break;
424 
425 		/* long options */
426 		case 0:
427 			l2fwd_usage(prgname);
428 			return -1;
429 
430 		default:
431 			l2fwd_usage(prgname);
432 			return -1;
433 		}
434 	}
435 
436 	if (optind >= 0)
437 		argv[optind-1] = prgname;
438 
439 	ret = optind-1;
440 	optind = 1; /* reset getopt lib */
441 	return ret;
442 }
443 
444 /* Check the link status of all ports in up to 9s, and print them finally */
445 static void
446 check_all_ports_link_status(uint32_t port_mask)
447 {
448 #define CHECK_INTERVAL 100 /* 100ms */
449 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
450 	uint16_t portid;
451 	uint8_t count, all_ports_up, print_flag = 0;
452 	struct rte_eth_link link;
453 	int ret;
454 	char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
455 
456 	printf("\nChecking link status");
457 	fflush(stdout);
458 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
459 		all_ports_up = 1;
460 		RTE_ETH_FOREACH_DEV(portid) {
461 			if ((port_mask & (1 << portid)) == 0)
462 				continue;
463 			memset(&link, 0, sizeof(link));
464 			ret = rte_eth_link_get_nowait(portid, &link);
465 			if (ret < 0) {
466 				all_ports_up = 0;
467 				if (print_flag == 1)
468 					printf("Port %u link get failed: %s\n",
469 						portid, rte_strerror(-ret));
470 				continue;
471 			}
472 			/* print link status if flag set */
473 			if (print_flag == 1) {
474 				rte_eth_link_to_str(link_status_text,
475 					sizeof(link_status_text), &link);
476 				printf("Port %d %s\n", portid,
477 				       link_status_text);
478 				continue;
479 			}
480 			/* clear all_ports_up flag if any link down */
481 			if (link.link_status == ETH_LINK_DOWN) {
482 				all_ports_up = 0;
483 				break;
484 			}
485 		}
486 		/* after finally printing all link status, get out */
487 		if (print_flag == 1)
488 			break;
489 
490 		if (all_ports_up == 0) {
491 			printf(".");
492 			fflush(stdout);
493 			rte_delay_ms(CHECK_INTERVAL);
494 		}
495 
496 		/* set the print_flag if all ports up or timeout */
497 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
498 			print_flag = 1;
499 			printf("done\n");
500 		}
501 	}
502 }
503 
504 static void
505 dead_core(__rte_unused void *ptr_data, const int id_core)
506 {
507 	if (terminate_signal_received)
508 		return;
509 	printf("Dead core %i - restarting..\n", id_core);
510 	if (rte_eal_get_lcore_state(id_core) == FINISHED) {
511 		rte_eal_wait_lcore(id_core);
512 		rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
513 	} else {
514 		printf("..false positive!\n");
515 	}
516 }
517 
518 static void
519 relay_core_state(void *ptr_data, const int id_core,
520 	const enum rte_keepalive_state core_state, uint64_t last_alive)
521 {
522 	rte_keepalive_relayed_state((struct rte_keepalive_shm *)ptr_data,
523 		id_core, core_state, last_alive);
524 }
525 
526 int
527 main(int argc, char **argv)
528 {
529 	struct lcore_queue_conf *qconf;
530 	int ret;
531 	uint16_t nb_ports;
532 	uint16_t nb_ports_available = 0;
533 	uint16_t portid, last_port;
534 	unsigned lcore_id, rx_lcore_id;
535 	unsigned nb_ports_in_mask = 0;
536 	unsigned int total_nb_mbufs;
537 	struct sigaction signal_handler;
538 	struct rte_keepalive_shm *ka_shm;
539 
540 	memset(&signal_handler, 0, sizeof(signal_handler));
541 	terminate_signal_received = 0;
542 	signal_handler.sa_handler = &handle_sigterm;
543 	if (sigaction(SIGINT, &signal_handler, NULL) == -1 ||
544 			sigaction(SIGTERM, &signal_handler, NULL) == -1)
545 		rte_exit(EXIT_FAILURE, "SIGNAL\n");
546 
547 
548 	/* init EAL */
549 	ret = rte_eal_init(argc, argv);
550 	if (ret < 0)
551 		rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
552 	argc -= ret;
553 	argv += ret;
554 
555 	l2fwd_enabled_port_mask = 0;
556 
557 	/* parse application arguments (after the EAL ones) */
558 	ret = l2fwd_parse_args(argc, argv);
559 	if (ret < 0)
560 		rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
561 
562 	nb_ports = rte_eth_dev_count_avail();
563 	if (nb_ports == 0)
564 		rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
565 
566 	/* create the mbuf pool */
567 	total_nb_mbufs = NB_MBUF_PER_PORT * nb_ports;
568 
569 	l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
570 		total_nb_mbufs,	32, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
571 		rte_socket_id());
572 	if (l2fwd_pktmbuf_pool == NULL)
573 		rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
574 
575 	/* reset l2fwd_dst_ports */
576 	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
577 		l2fwd_dst_ports[portid] = 0;
578 	last_port = 0;
579 
580 	/*
581 	 * Each logical core is assigned a dedicated TX queue on each port.
582 	 */
583 	RTE_ETH_FOREACH_DEV(portid) {
584 		/* skip ports that are not enabled */
585 		if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
586 			continue;
587 
588 		if (nb_ports_in_mask % 2) {
589 			l2fwd_dst_ports[portid] = last_port;
590 			l2fwd_dst_ports[last_port] = portid;
591 		} else
592 			last_port = portid;
593 
594 		nb_ports_in_mask++;
595 	}
596 	if (nb_ports_in_mask % 2) {
597 		printf("Notice: odd number of ports in portmask.\n");
598 		l2fwd_dst_ports[last_port] = last_port;
599 	}
600 
601 	rx_lcore_id = 1;
602 	qconf = NULL;
603 
604 	/* Initialize the port/queue configuration of each logical core */
605 	RTE_ETH_FOREACH_DEV(portid) {
606 		/* skip ports that are not enabled */
607 		if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
608 			continue;
609 
610 		/* get the lcore_id for this port */
611 		while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
612 		       lcore_queue_conf[rx_lcore_id].n_rx_port ==
613 		       l2fwd_rx_queue_per_lcore) {
614 			rx_lcore_id++;
615 			if (rx_lcore_id >= RTE_MAX_LCORE)
616 				rte_exit(EXIT_FAILURE, "Not enough cores\n");
617 		}
618 
619 		if (qconf != &lcore_queue_conf[rx_lcore_id])
620 			/* Assigned a new logical core in the loop above. */
621 			qconf = &lcore_queue_conf[rx_lcore_id];
622 
623 		qconf->rx_port_list[qconf->n_rx_port] = portid;
624 		qconf->n_rx_port++;
625 		printf("Lcore %u: RX port %u\n",
626 			rx_lcore_id, portid);
627 	}
628 
629 	/* Initialise each port */
630 	RTE_ETH_FOREACH_DEV(portid) {
631 		struct rte_eth_dev_info dev_info;
632 		struct rte_eth_rxconf rxq_conf;
633 		struct rte_eth_txconf txq_conf;
634 		struct rte_eth_conf local_port_conf = port_conf;
635 
636 		/* skip ports that are not enabled */
637 		if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
638 			printf("Skipping disabled port %u\n", portid);
639 			continue;
640 		}
641 		nb_ports_available++;
642 
643 		/* init port */
644 		printf("Initializing port %u... ", portid);
645 		fflush(stdout);
646 
647 		ret = rte_eth_dev_info_get(portid, &dev_info);
648 		if (ret != 0)
649 			rte_exit(EXIT_FAILURE,
650 				"Error during getting device (port %u) info: %s\n",
651 				portid, strerror(-ret));
652 
653 		if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
654 			local_port_conf.txmode.offloads |=
655 				DEV_TX_OFFLOAD_MBUF_FAST_FREE;
656 		ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
657 		if (ret < 0)
658 			rte_exit(EXIT_FAILURE,
659 				"Cannot configure device: err=%d, port=%u\n",
660 				ret, portid);
661 
662 		ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
663 						       &nb_txd);
664 		if (ret < 0)
665 			rte_exit(EXIT_FAILURE,
666 				"Cannot adjust number of descriptors: err=%d, port=%u\n",
667 				ret, portid);
668 
669 		ret = rte_eth_macaddr_get(portid,
670 					  &l2fwd_ports_eth_addr[portid]);
671 		if (ret < 0)
672 			rte_exit(EXIT_FAILURE,
673 				"Cannot mac address: err=%d, port=%u\n",
674 				ret, portid);
675 
676 		/* init one RX queue */
677 		fflush(stdout);
678 		rxq_conf = dev_info.default_rxconf;
679 		rxq_conf.offloads = local_port_conf.rxmode.offloads;
680 		ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
681 					     rte_eth_dev_socket_id(portid),
682 					     &rxq_conf,
683 					     l2fwd_pktmbuf_pool);
684 		if (ret < 0)
685 			rte_exit(EXIT_FAILURE,
686 				"rte_eth_rx_queue_setup:err=%d, port=%u\n",
687 				ret, portid);
688 
689 		/* init one TX queue on each port */
690 		fflush(stdout);
691 		txq_conf = dev_info.default_txconf;
692 		txq_conf.offloads = local_port_conf.txmode.offloads;
693 		ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
694 				rte_eth_dev_socket_id(portid),
695 				&txq_conf);
696 		if (ret < 0)
697 			rte_exit(EXIT_FAILURE,
698 				"rte_eth_tx_queue_setup:err=%d, port=%u\n",
699 				ret, portid);
700 
701 		/* Initialize TX buffers */
702 		tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
703 				RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
704 				rte_eth_dev_socket_id(portid));
705 		if (tx_buffer[portid] == NULL)
706 			rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
707 						portid);
708 
709 		rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
710 
711 		ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
712 				rte_eth_tx_buffer_count_callback,
713 				&port_statistics[portid].dropped);
714 		if (ret < 0)
715 			rte_exit(EXIT_FAILURE,
716 			"Cannot set error callback for tx buffer on port %u\n",
717 				 portid);
718 
719 		/* Start device */
720 		ret = rte_eth_dev_start(portid);
721 		if (ret < 0)
722 			rte_exit(EXIT_FAILURE,
723 				"rte_eth_dev_start:err=%d, port=%u\n",
724 				  ret, portid);
725 
726 		ret = rte_eth_promiscuous_enable(portid);
727 		if (ret != 0)
728 			rte_exit(EXIT_FAILURE,
729 				 "rte_eth_promiscuous_enable:err=%s, port=%u\n",
730 				 rte_strerror(-ret), portid);
731 
732 		printf("Port %u, MAC address: "
733 			RTE_ETHER_ADDR_PRT_FMT "\n\n",
734 			portid,
735 			RTE_ETHER_ADDR_BYTES(&l2fwd_ports_eth_addr[portid]));
736 
737 		/* initialize port stats */
738 		memset(&port_statistics, 0, sizeof(port_statistics));
739 	}
740 
741 	if (!nb_ports_available) {
742 		rte_exit(EXIT_FAILURE,
743 			"All available ports are disabled. Please set portmask.\n");
744 	}
745 
746 	check_all_ports_link_status(l2fwd_enabled_port_mask);
747 
748 	struct rte_timer hb_timer, stats_timer;
749 
750 	rte_timer_subsystem_init();
751 	rte_timer_init(&stats_timer);
752 
753 	ka_shm = NULL;
754 	if (check_period > 0) {
755 		ka_shm = rte_keepalive_shm_create();
756 		if (ka_shm == NULL)
757 			rte_exit(EXIT_FAILURE,
758 				"rte_keepalive_shm_create() failed");
759 		/* Initialize keepalive functionality. 8< */
760 		rte_global_keepalive_info =
761 			rte_keepalive_create(&dead_core, ka_shm);
762 		if (rte_global_keepalive_info == NULL)
763 			rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
764 		/* >8 End of initializing keepalive functionality. */
765 		rte_keepalive_register_relay_callback(rte_global_keepalive_info,
766 			relay_core_state, ka_shm);
767 		rte_timer_init(&hb_timer);
768 		if (rte_timer_reset(&hb_timer,
769 				(check_period * rte_get_timer_hz()) / 1000,
770 				PERIODICAL,
771 				rte_lcore_id(),
772 				(void(*)(struct rte_timer*, void*))
773 				&rte_keepalive_dispatch_pings,
774 				rte_global_keepalive_info
775 				) != 0 )
776 			rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
777 	}
778 	if (timer_period > 0) {
779 		/* Issues the pings keepalive_dispatch_pings(). 8< */
780 		if (rte_timer_reset(&stats_timer,
781 				(timer_period * rte_get_timer_hz()) / 1000,
782 				PERIODICAL,
783 				rte_lcore_id(),
784 				&print_stats, NULL
785 				) != 0 )
786 			rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
787 		/* >8 End of issuing the pings keepalive_dispatch_pings(). */
788 	}
789 	/* launch per-lcore init on every worker lcore */
790 	RTE_LCORE_FOREACH_WORKER(lcore_id) {
791 		struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
792 
793 		if (qconf->n_rx_port == 0)
794 			RTE_LOG(INFO, L2FWD,
795 				"lcore %u has nothing to do\n",
796 				lcore_id
797 				);
798 		else {
799 			rte_eal_remote_launch(
800 				l2fwd_launch_one_lcore,
801 				NULL,
802 				lcore_id
803 				);
804 			rte_keepalive_register_core(rte_global_keepalive_info,
805 				lcore_id);
806 		}
807 	}
808 	while (!terminate_signal_received) {
809 		rte_timer_manage();
810 		rte_delay_ms(5);
811 		}
812 
813 	RTE_LCORE_FOREACH_WORKER(lcore_id) {
814 		if (rte_eal_wait_lcore(lcore_id) < 0)
815 			return -1;
816 	}
817 
818 	if (ka_shm != NULL)
819 		rte_keepalive_shm_cleanup(ka_shm);
820 
821 	/* clean up the EAL */
822 	rte_eal_cleanup();
823 
824 	return 0;
825 }
826