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 #include <stdbool.h>
20
21 #include <rte_common.h>
22 #include <rte_log.h>
23 #include <rte_malloc.h>
24 #include <rte_memory.h>
25 #include <rte_memcpy.h>
26 #include <rte_eal.h>
27 #include <rte_launch.h>
28 #include <rte_atomic.h>
29 #include <rte_cycles.h>
30 #include <rte_prefetch.h>
31 #include <rte_lcore.h>
32 #include <rte_per_lcore.h>
33 #include <rte_branch_prediction.h>
34 #include <rte_interrupts.h>
35 #include <rte_random.h>
36 #include <rte_debug.h>
37 #include <rte_ether.h>
38 #include <rte_ethdev.h>
39 #include <rte_mempool.h>
40 #include <rte_mbuf.h>
41 #include <rte_string_fns.h>
42
43 static volatile bool force_quit;
44
45 /* MAC updating enabled by default */
46 static int mac_updating = 1;
47
48 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
49
50 #define MAX_PKT_BURST 32
51 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
52 #define MEMPOOL_CACHE_SIZE 256
53
54 /*
55 * Configurable number of RX/TX ring descriptors
56 */
57 #define RTE_TEST_RX_DESC_DEFAULT 1024
58 #define RTE_TEST_TX_DESC_DEFAULT 1024
59 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
60 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
61
62 /* ethernet addresses of ports */
63 static struct rte_ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
64
65 /* mask of enabled ports */
66 static uint32_t l2fwd_enabled_port_mask = 0;
67
68 /* list of enabled ports */
69 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
70
71 struct port_pair_params {
72 #define NUM_PORTS 2
73 uint16_t port[NUM_PORTS];
74 } __rte_cache_aligned;
75
76 static struct port_pair_params port_pair_params_array[RTE_MAX_ETHPORTS / 2];
77 static struct port_pair_params *port_pair_params;
78 static uint16_t nb_port_pair_params;
79
80 static unsigned int l2fwd_rx_queue_per_lcore = 1;
81
82 #define MAX_RX_QUEUE_PER_LCORE 16
83 #define MAX_TX_QUEUE_PER_PORT 16
84 struct lcore_queue_conf {
85 unsigned n_rx_port;
86 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
87 } __rte_cache_aligned;
88 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
89
90 static struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
91
92 static struct rte_eth_conf port_conf = {
93 .rxmode = {
94 .split_hdr_size = 0,
95 },
96 .txmode = {
97 .mq_mode = ETH_MQ_TX_NONE,
98 },
99 };
100
101 struct rte_mempool * l2fwd_pktmbuf_pool = NULL;
102
103 /* Per-port statistics struct */
104 struct l2fwd_port_statistics {
105 uint64_t tx;
106 uint64_t rx;
107 uint64_t dropped;
108 } __rte_cache_aligned;
109 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
110
111 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
112 /* A tsc-based timer responsible for triggering statistics printout */
113 static uint64_t timer_period = 10; /* default period is 10 seconds */
114
115 /* Print out statistics on packets dropped */
116 static void
print_stats(void)117 print_stats(void)
118 {
119 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
120 unsigned portid;
121
122 total_packets_dropped = 0;
123 total_packets_tx = 0;
124 total_packets_rx = 0;
125
126 const char clr[] = { 27, '[', '2', 'J', '\0' };
127 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
128
129 /* Clear screen and move to top left */
130 printf("%s%s", clr, topLeft);
131
132 printf("\nPort statistics ====================================");
133
134 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
135 /* skip disabled ports */
136 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
137 continue;
138 printf("\nStatistics for port %u ------------------------------"
139 "\nPackets sent: %24"PRIu64
140 "\nPackets received: %20"PRIu64
141 "\nPackets dropped: %21"PRIu64,
142 portid,
143 port_statistics[portid].tx,
144 port_statistics[portid].rx,
145 port_statistics[portid].dropped);
146
147 total_packets_dropped += port_statistics[portid].dropped;
148 total_packets_tx += port_statistics[portid].tx;
149 total_packets_rx += port_statistics[portid].rx;
150 }
151 printf("\nAggregate statistics ==============================="
152 "\nTotal packets sent: %18"PRIu64
153 "\nTotal packets received: %14"PRIu64
154 "\nTotal packets dropped: %15"PRIu64,
155 total_packets_tx,
156 total_packets_rx,
157 total_packets_dropped);
158 printf("\n====================================================\n");
159
160 fflush(stdout);
161 }
162
163 static void
l2fwd_mac_updating(struct rte_mbuf * m,unsigned dest_portid)164 l2fwd_mac_updating(struct rte_mbuf *m, unsigned dest_portid)
165 {
166 struct rte_ether_hdr *eth;
167 void *tmp;
168
169 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
170
171 /* 02:00:00:00:00:xx */
172 tmp = ð->d_addr.addr_bytes[0];
173 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dest_portid << 40);
174
175 /* src addr */
176 rte_ether_addr_copy(&l2fwd_ports_eth_addr[dest_portid], ð->s_addr);
177 }
178
179 static void
l2fwd_simple_forward(struct rte_mbuf * m,unsigned portid)180 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
181 {
182 unsigned dst_port;
183 int sent;
184 struct rte_eth_dev_tx_buffer *buffer;
185
186 dst_port = l2fwd_dst_ports[portid];
187
188 if (mac_updating)
189 l2fwd_mac_updating(m, dst_port);
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
197 /* main processing loop */
198 static void
l2fwd_main_loop(void)199 l2fwd_main_loop(void)
200 {
201 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
202 struct rte_mbuf *m;
203 int sent;
204 unsigned lcore_id;
205 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
206 unsigned i, j, portid, nb_rx;
207 struct lcore_queue_conf *qconf;
208 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
209 BURST_TX_DRAIN_US;
210 struct rte_eth_dev_tx_buffer *buffer;
211
212 prev_tsc = 0;
213 timer_tsc = 0;
214
215 lcore_id = rte_lcore_id();
216 qconf = &lcore_queue_conf[lcore_id];
217
218 if (qconf->n_rx_port == 0) {
219 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
220 return;
221 }
222
223 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
224
225 for (i = 0; i < qconf->n_rx_port; i++) {
226
227 portid = qconf->rx_port_list[i];
228 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
229 portid);
230
231 }
232
233 while (!force_quit) {
234
235 cur_tsc = rte_rdtsc();
236
237 /*
238 * TX burst queue drain
239 */
240 diff_tsc = cur_tsc - prev_tsc;
241 if (unlikely(diff_tsc > drain_tsc)) {
242
243 for (i = 0; i < qconf->n_rx_port; i++) {
244
245 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
246 buffer = tx_buffer[portid];
247
248 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
249 if (sent)
250 port_statistics[portid].tx += sent;
251
252 }
253
254 /* if timer is enabled */
255 if (timer_period > 0) {
256
257 /* advance the timer */
258 timer_tsc += diff_tsc;
259
260 /* if timer has reached its timeout */
261 if (unlikely(timer_tsc >= timer_period)) {
262
263 /* do this only on main core */
264 if (lcore_id == rte_get_main_lcore()) {
265 print_stats();
266 /* reset the timer */
267 timer_tsc = 0;
268 }
269 }
270 }
271
272 prev_tsc = cur_tsc;
273 }
274
275 /*
276 * Read packet from RX queues
277 */
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(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 l2fwd_simple_forward(m, portid);
290 }
291 }
292 }
293 }
294
295 static int
l2fwd_launch_one_lcore(__rte_unused void * dummy)296 l2fwd_launch_one_lcore(__rte_unused void *dummy)
297 {
298 l2fwd_main_loop();
299 return 0;
300 }
301
302 /* display usage */
303 static void
l2fwd_usage(const char * prgname)304 l2fwd_usage(const char *prgname)
305 {
306 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
307 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
308 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
309 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n"
310 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
311 " When enabled:\n"
312 " - The source MAC address is replaced by the TX port MAC address\n"
313 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n"
314 " --portmap: Configure forwarding port pair mapping\n"
315 " Default: alternate port pairs\n\n",
316 prgname);
317 }
318
319 static int
l2fwd_parse_portmask(const char * portmask)320 l2fwd_parse_portmask(const char *portmask)
321 {
322 char *end = NULL;
323 unsigned long pm;
324
325 /* parse hexadecimal string */
326 pm = strtoul(portmask, &end, 16);
327 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
328 return 0;
329
330 return pm;
331 }
332
333 static int
l2fwd_parse_port_pair_config(const char * q_arg)334 l2fwd_parse_port_pair_config(const char *q_arg)
335 {
336 enum fieldnames {
337 FLD_PORT1 = 0,
338 FLD_PORT2,
339 _NUM_FLD
340 };
341 unsigned long int_fld[_NUM_FLD];
342 const char *p, *p0 = q_arg;
343 char *str_fld[_NUM_FLD];
344 unsigned int size;
345 char s[256];
346 char *end;
347 int i;
348
349 nb_port_pair_params = 0;
350
351 while ((p = strchr(p0, '(')) != NULL) {
352 ++p;
353 p0 = strchr(p, ')');
354 if (p0 == NULL)
355 return -1;
356
357 size = p0 - p;
358 if (size >= sizeof(s))
359 return -1;
360
361 memcpy(s, p, size);
362 s[size] = '\0';
363 if (rte_strsplit(s, sizeof(s), str_fld,
364 _NUM_FLD, ',') != _NUM_FLD)
365 return -1;
366 for (i = 0; i < _NUM_FLD; i++) {
367 errno = 0;
368 int_fld[i] = strtoul(str_fld[i], &end, 0);
369 if (errno != 0 || end == str_fld[i] ||
370 int_fld[i] >= RTE_MAX_ETHPORTS)
371 return -1;
372 }
373 if (nb_port_pair_params >= RTE_MAX_ETHPORTS/2) {
374 printf("exceeded max number of port pair params: %hu\n",
375 nb_port_pair_params);
376 return -1;
377 }
378 port_pair_params_array[nb_port_pair_params].port[0] =
379 (uint16_t)int_fld[FLD_PORT1];
380 port_pair_params_array[nb_port_pair_params].port[1] =
381 (uint16_t)int_fld[FLD_PORT2];
382 ++nb_port_pair_params;
383 }
384 port_pair_params = port_pair_params_array;
385 return 0;
386 }
387
388 static unsigned int
l2fwd_parse_nqueue(const char * q_arg)389 l2fwd_parse_nqueue(const char *q_arg)
390 {
391 char *end = NULL;
392 unsigned long n;
393
394 /* parse hexadecimal string */
395 n = strtoul(q_arg, &end, 10);
396 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
397 return 0;
398 if (n == 0)
399 return 0;
400 if (n >= MAX_RX_QUEUE_PER_LCORE)
401 return 0;
402
403 return n;
404 }
405
406 static int
l2fwd_parse_timer_period(const char * q_arg)407 l2fwd_parse_timer_period(const char *q_arg)
408 {
409 char *end = NULL;
410 int n;
411
412 /* parse number string */
413 n = strtol(q_arg, &end, 10);
414 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
415 return -1;
416 if (n >= MAX_TIMER_PERIOD)
417 return -1;
418
419 return n;
420 }
421
422 static const char short_options[] =
423 "p:" /* portmask */
424 "q:" /* number of queues */
425 "T:" /* timer period */
426 ;
427
428 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating"
429 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating"
430 #define CMD_LINE_OPT_PORTMAP_CONFIG "portmap"
431
432 enum {
433 /* long options mapped to a short option */
434
435 /* first long only option value must be >= 256, so that we won't
436 * conflict with short options */
437 CMD_LINE_OPT_MIN_NUM = 256,
438 CMD_LINE_OPT_PORTMAP_NUM,
439 };
440
441 static const struct option lgopts[] = {
442 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
443 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
444 { CMD_LINE_OPT_PORTMAP_CONFIG, 1, 0, CMD_LINE_OPT_PORTMAP_NUM},
445 {NULL, 0, 0, 0}
446 };
447
448 /* Parse the argument given in the command line of the application */
449 static int
l2fwd_parse_args(int argc,char ** argv)450 l2fwd_parse_args(int argc, char **argv)
451 {
452 int opt, ret, timer_secs;
453 char **argvopt;
454 int option_index;
455 char *prgname = argv[0];
456
457 argvopt = argv;
458 port_pair_params = NULL;
459
460 while ((opt = getopt_long(argc, argvopt, short_options,
461 lgopts, &option_index)) != EOF) {
462
463 switch (opt) {
464 /* portmask */
465 case 'p':
466 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
467 if (l2fwd_enabled_port_mask == 0) {
468 printf("invalid portmask\n");
469 l2fwd_usage(prgname);
470 return -1;
471 }
472 break;
473
474 /* nqueue */
475 case 'q':
476 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
477 if (l2fwd_rx_queue_per_lcore == 0) {
478 printf("invalid queue number\n");
479 l2fwd_usage(prgname);
480 return -1;
481 }
482 break;
483
484 /* timer period */
485 case 'T':
486 timer_secs = l2fwd_parse_timer_period(optarg);
487 if (timer_secs < 0) {
488 printf("invalid timer period\n");
489 l2fwd_usage(prgname);
490 return -1;
491 }
492 timer_period = timer_secs;
493 break;
494
495 /* long options */
496 case CMD_LINE_OPT_PORTMAP_NUM:
497 ret = l2fwd_parse_port_pair_config(optarg);
498 if (ret) {
499 fprintf(stderr, "Invalid config\n");
500 l2fwd_usage(prgname);
501 return -1;
502 }
503 break;
504
505 default:
506 l2fwd_usage(prgname);
507 return -1;
508 }
509 }
510
511 if (optind >= 0)
512 argv[optind-1] = prgname;
513
514 ret = optind-1;
515 optind = 1; /* reset getopt lib */
516 return ret;
517 }
518
519 /*
520 * Check port pair config with enabled port mask,
521 * and for valid port pair combinations.
522 */
523 static int
check_port_pair_config(void)524 check_port_pair_config(void)
525 {
526 uint32_t port_pair_config_mask = 0;
527 uint32_t port_pair_mask = 0;
528 uint16_t index, i, portid;
529
530 for (index = 0; index < nb_port_pair_params; index++) {
531 port_pair_mask = 0;
532
533 for (i = 0; i < NUM_PORTS; i++) {
534 portid = port_pair_params[index].port[i];
535 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
536 printf("port %u is not enabled in port mask\n",
537 portid);
538 return -1;
539 }
540 if (!rte_eth_dev_is_valid_port(portid)) {
541 printf("port %u is not present on the board\n",
542 portid);
543 return -1;
544 }
545
546 port_pair_mask |= 1 << portid;
547 }
548
549 if (port_pair_config_mask & port_pair_mask) {
550 printf("port %u is used in other port pairs\n", portid);
551 return -1;
552 }
553 port_pair_config_mask |= port_pair_mask;
554 }
555
556 l2fwd_enabled_port_mask &= port_pair_config_mask;
557
558 return 0;
559 }
560
561 /* Check the link status of all ports in up to 9s, and print them finally */
562 static void
check_all_ports_link_status(uint32_t port_mask)563 check_all_ports_link_status(uint32_t port_mask)
564 {
565 #define CHECK_INTERVAL 100 /* 100ms */
566 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
567 uint16_t portid;
568 uint8_t count, all_ports_up, print_flag = 0;
569 struct rte_eth_link link;
570 int ret;
571 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
572
573 printf("\nChecking link status");
574 fflush(stdout);
575 for (count = 0; count <= MAX_CHECK_TIME; count++) {
576 if (force_quit)
577 return;
578 all_ports_up = 1;
579 RTE_ETH_FOREACH_DEV(portid) {
580 if (force_quit)
581 return;
582 if ((port_mask & (1 << portid)) == 0)
583 continue;
584 memset(&link, 0, sizeof(link));
585 ret = rte_eth_link_get_nowait(portid, &link);
586 if (ret < 0) {
587 all_ports_up = 0;
588 if (print_flag == 1)
589 printf("Port %u link get failed: %s\n",
590 portid, rte_strerror(-ret));
591 continue;
592 }
593 /* print link status if flag set */
594 if (print_flag == 1) {
595 rte_eth_link_to_str(link_status_text,
596 sizeof(link_status_text), &link);
597 printf("Port %d %s\n", portid,
598 link_status_text);
599 continue;
600 }
601 /* clear all_ports_up flag if any link down */
602 if (link.link_status == ETH_LINK_DOWN) {
603 all_ports_up = 0;
604 break;
605 }
606 }
607 /* after finally printing all link status, get out */
608 if (print_flag == 1)
609 break;
610
611 if (all_ports_up == 0) {
612 printf(".");
613 fflush(stdout);
614 rte_delay_ms(CHECK_INTERVAL);
615 }
616
617 /* set the print_flag if all ports up or timeout */
618 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
619 print_flag = 1;
620 printf("done\n");
621 }
622 }
623 }
624
625 static void
signal_handler(int signum)626 signal_handler(int signum)
627 {
628 if (signum == SIGINT || signum == SIGTERM) {
629 printf("\n\nSignal %d received, preparing to exit...\n",
630 signum);
631 force_quit = true;
632 }
633 }
634
635 int
main(int argc,char ** argv)636 main(int argc, char **argv)
637 {
638 struct lcore_queue_conf *qconf;
639 int ret;
640 uint16_t nb_ports;
641 uint16_t nb_ports_available = 0;
642 uint16_t portid, last_port;
643 unsigned lcore_id, rx_lcore_id;
644 unsigned nb_ports_in_mask = 0;
645 unsigned int nb_lcores = 0;
646 unsigned int nb_mbufs;
647
648 /* init EAL */
649 ret = rte_eal_init(argc, argv);
650 if (ret < 0)
651 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
652 argc -= ret;
653 argv += ret;
654
655 force_quit = false;
656 signal(SIGINT, signal_handler);
657 signal(SIGTERM, signal_handler);
658
659 /* parse application arguments (after the EAL ones) */
660 ret = l2fwd_parse_args(argc, argv);
661 if (ret < 0)
662 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
663
664 printf("MAC updating %s\n", mac_updating ? "enabled" : "disabled");
665
666 /* convert to number of cycles */
667 timer_period *= rte_get_timer_hz();
668
669 nb_ports = rte_eth_dev_count_avail();
670 if (nb_ports == 0)
671 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
672
673 if (port_pair_params != NULL) {
674 if (check_port_pair_config() < 0)
675 rte_exit(EXIT_FAILURE, "Invalid port pair config\n");
676 }
677
678 /* check port mask to possible port mask */
679 if (l2fwd_enabled_port_mask & ~((1 << nb_ports) - 1))
680 rte_exit(EXIT_FAILURE, "Invalid portmask; possible (0x%x)\n",
681 (1 << nb_ports) - 1);
682
683 /* reset l2fwd_dst_ports */
684 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
685 l2fwd_dst_ports[portid] = 0;
686 last_port = 0;
687
688 /* populate destination port details */
689 if (port_pair_params != NULL) {
690 uint16_t idx, p;
691
692 for (idx = 0; idx < (nb_port_pair_params << 1); idx++) {
693 p = idx & 1;
694 portid = port_pair_params[idx >> 1].port[p];
695 l2fwd_dst_ports[portid] =
696 port_pair_params[idx >> 1].port[p ^ 1];
697 }
698 } else {
699 RTE_ETH_FOREACH_DEV(portid) {
700 /* skip ports that are not enabled */
701 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
702 continue;
703
704 if (nb_ports_in_mask % 2) {
705 l2fwd_dst_ports[portid] = last_port;
706 l2fwd_dst_ports[last_port] = portid;
707 } else {
708 last_port = portid;
709 }
710
711 nb_ports_in_mask++;
712 }
713 if (nb_ports_in_mask % 2) {
714 printf("Notice: odd number of ports in portmask.\n");
715 l2fwd_dst_ports[last_port] = last_port;
716 }
717 }
718
719 rx_lcore_id = 0;
720 qconf = NULL;
721
722 /* Initialize the port/queue configuration of each logical core */
723 RTE_ETH_FOREACH_DEV(portid) {
724 /* skip ports that are not enabled */
725 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
726 continue;
727
728 /* get the lcore_id for this port */
729 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
730 lcore_queue_conf[rx_lcore_id].n_rx_port ==
731 l2fwd_rx_queue_per_lcore) {
732 rx_lcore_id++;
733 if (rx_lcore_id >= RTE_MAX_LCORE)
734 rte_exit(EXIT_FAILURE, "Not enough cores\n");
735 }
736
737 if (qconf != &lcore_queue_conf[rx_lcore_id]) {
738 /* Assigned a new logical core in the loop above. */
739 qconf = &lcore_queue_conf[rx_lcore_id];
740 nb_lcores++;
741 }
742
743 qconf->rx_port_list[qconf->n_rx_port] = portid;
744 qconf->n_rx_port++;
745 printf("Lcore %u: RX port %u TX port %u\n", rx_lcore_id,
746 portid, l2fwd_dst_ports[portid]);
747 }
748
749 nb_mbufs = RTE_MAX(nb_ports * (nb_rxd + nb_txd + MAX_PKT_BURST +
750 nb_lcores * MEMPOOL_CACHE_SIZE), 8192U);
751
752 /* create the mbuf pool */
753 l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs,
754 MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
755 rte_socket_id());
756 if (l2fwd_pktmbuf_pool == NULL)
757 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
758
759 /* Initialise each port */
760 RTE_ETH_FOREACH_DEV(portid) {
761 struct rte_eth_rxconf rxq_conf;
762 struct rte_eth_txconf txq_conf;
763 struct rte_eth_conf local_port_conf = port_conf;
764 struct rte_eth_dev_info dev_info;
765
766 /* skip ports that are not enabled */
767 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
768 printf("Skipping disabled port %u\n", portid);
769 continue;
770 }
771 nb_ports_available++;
772
773 /* init port */
774 printf("Initializing port %u... ", portid);
775 fflush(stdout);
776
777 ret = rte_eth_dev_info_get(portid, &dev_info);
778 if (ret != 0)
779 rte_exit(EXIT_FAILURE,
780 "Error during getting device (port %u) info: %s\n",
781 portid, strerror(-ret));
782
783 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
784 local_port_conf.txmode.offloads |=
785 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
786 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
787 if (ret < 0)
788 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
789 ret, portid);
790
791 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
792 &nb_txd);
793 if (ret < 0)
794 rte_exit(EXIT_FAILURE,
795 "Cannot adjust number of descriptors: err=%d, port=%u\n",
796 ret, portid);
797
798 ret = rte_eth_macaddr_get(portid,
799 &l2fwd_ports_eth_addr[portid]);
800 if (ret < 0)
801 rte_exit(EXIT_FAILURE,
802 "Cannot get MAC address: err=%d, port=%u\n",
803 ret, portid);
804
805 /* init one RX queue */
806 fflush(stdout);
807 rxq_conf = dev_info.default_rxconf;
808 rxq_conf.offloads = local_port_conf.rxmode.offloads;
809 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
810 rte_eth_dev_socket_id(portid),
811 &rxq_conf,
812 l2fwd_pktmbuf_pool);
813 if (ret < 0)
814 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
815 ret, portid);
816
817 /* init one TX queue on each port */
818 fflush(stdout);
819 txq_conf = dev_info.default_txconf;
820 txq_conf.offloads = local_port_conf.txmode.offloads;
821 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
822 rte_eth_dev_socket_id(portid),
823 &txq_conf);
824 if (ret < 0)
825 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
826 ret, portid);
827
828 /* Initialize TX buffers */
829 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
830 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
831 rte_eth_dev_socket_id(portid));
832 if (tx_buffer[portid] == NULL)
833 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
834 portid);
835
836 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
837
838 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
839 rte_eth_tx_buffer_count_callback,
840 &port_statistics[portid].dropped);
841 if (ret < 0)
842 rte_exit(EXIT_FAILURE,
843 "Cannot set error callback for tx buffer on port %u\n",
844 portid);
845
846 ret = rte_eth_dev_set_ptypes(portid, RTE_PTYPE_UNKNOWN, NULL,
847 0);
848 if (ret < 0)
849 printf("Port %u, Failed to disable Ptype parsing\n",
850 portid);
851 /* Start device */
852 ret = rte_eth_dev_start(portid);
853 if (ret < 0)
854 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
855 ret, portid);
856
857 printf("done: \n");
858
859 ret = rte_eth_promiscuous_enable(portid);
860 if (ret != 0)
861 rte_exit(EXIT_FAILURE,
862 "rte_eth_promiscuous_enable:err=%s, port=%u\n",
863 rte_strerror(-ret), portid);
864
865 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
866 portid,
867 l2fwd_ports_eth_addr[portid].addr_bytes[0],
868 l2fwd_ports_eth_addr[portid].addr_bytes[1],
869 l2fwd_ports_eth_addr[portid].addr_bytes[2],
870 l2fwd_ports_eth_addr[portid].addr_bytes[3],
871 l2fwd_ports_eth_addr[portid].addr_bytes[4],
872 l2fwd_ports_eth_addr[portid].addr_bytes[5]);
873
874 /* initialize port stats */
875 memset(&port_statistics, 0, sizeof(port_statistics));
876 }
877
878 if (!nb_ports_available) {
879 rte_exit(EXIT_FAILURE,
880 "All available ports are disabled. Please set portmask.\n");
881 }
882
883 check_all_ports_link_status(l2fwd_enabled_port_mask);
884
885 ret = 0;
886 /* launch per-lcore init on every lcore */
887 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MAIN);
888 RTE_LCORE_FOREACH_WORKER(lcore_id) {
889 if (rte_eal_wait_lcore(lcore_id) < 0) {
890 ret = -1;
891 break;
892 }
893 }
894
895 RTE_ETH_FOREACH_DEV(portid) {
896 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
897 continue;
898 printf("Closing port %d...", portid);
899 ret = rte_eth_dev_stop(portid);
900 if (ret != 0)
901 printf("rte_eth_dev_stop: err=%d, port=%d\n",
902 ret, portid);
903 rte_eth_dev_close(portid);
904 printf(" Done\n");
905 }
906 printf("Bye...\n");
907
908 return ret;
909 }
910