1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
3 */
4
5 #include <rte_string_fns.h>
6
7 #include "l2fwd_event.h"
8 #include "l2fwd_poll.h"
9
10 /* display usage */
11 static void
l2fwd_event_usage(const char * prgname)12 l2fwd_event_usage(const char *prgname)
13 {
14 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
15 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
16 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
17 " -T PERIOD: statistics will be refreshed each PERIOD seconds "
18 " (0 to disable, 10 default, 86400 maximum)\n"
19 " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
20 " When enabled:\n"
21 " - The source MAC address is replaced by the TX port MAC address\n"
22 " - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n"
23 " --mode: Packet transfer mode for I/O, poll or eventdev\n"
24 " Default mode = eventdev\n"
25 " --eventq-sched: Event queue schedule type, ordered, atomic or parallel.\n"
26 " Default: atomic\n"
27 " Valid only if --mode=eventdev\n"
28 " --event-vector: Enable event vectorization.\n"
29 " --event-vector-size: Max vector size if event vectorization is enabled.\n"
30 " --event-vector-tmo: Max timeout to form vector in nanoseconds if event vectorization is enabled\n"
31 " --config: Configure forwarding port pair mapping\n"
32 " Default: alternate port pairs\n\n",
33 prgname);
34 }
35
36 static int
l2fwd_event_parse_portmask(const char * portmask)37 l2fwd_event_parse_portmask(const char *portmask)
38 {
39 char *end = NULL;
40 unsigned long pm;
41
42 /* parse hexadecimal string */
43 pm = strtoul(portmask, &end, 16);
44 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
45 return 0;
46
47 return pm;
48 }
49
50 static unsigned int
l2fwd_event_parse_nqueue(const char * q_arg)51 l2fwd_event_parse_nqueue(const char *q_arg)
52 {
53 char *end = NULL;
54 unsigned long n;
55
56 /* parse hexadecimal string */
57 n = strtoul(q_arg, &end, 10);
58 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
59 return 0;
60 if (n == 0)
61 return 0;
62 if (n >= MAX_RX_QUEUE_PER_LCORE)
63 return 0;
64
65 return n;
66 }
67
68 static int
l2fwd_event_parse_timer_period(const char * q_arg)69 l2fwd_event_parse_timer_period(const char *q_arg)
70 {
71 char *end = NULL;
72 int n;
73
74 /* parse number string */
75 n = strtol(q_arg, &end, 10);
76 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
77 return -1;
78 if (n >= MAX_TIMER_PERIOD)
79 return -1;
80
81 return n;
82 }
83
84 static void
l2fwd_event_parse_mode(const char * optarg,struct l2fwd_resources * rsrc)85 l2fwd_event_parse_mode(const char *optarg,
86 struct l2fwd_resources *rsrc)
87 {
88 if (!strncmp(optarg, "poll", 4))
89 rsrc->event_mode = false;
90 else if (!strncmp(optarg, "eventdev", 8))
91 rsrc->event_mode = true;
92 }
93
94 static void
l2fwd_event_parse_eventq_sched(const char * optarg,struct l2fwd_resources * rsrc)95 l2fwd_event_parse_eventq_sched(const char *optarg,
96 struct l2fwd_resources *rsrc)
97 {
98 if (!strncmp(optarg, "ordered", 7))
99 rsrc->sched_type = RTE_SCHED_TYPE_ORDERED;
100 else if (!strncmp(optarg, "atomic", 6))
101 rsrc->sched_type = RTE_SCHED_TYPE_ATOMIC;
102 else if (!strncmp(optarg, "parallel", 8))
103 rsrc->sched_type = RTE_SCHED_TYPE_PARALLEL;
104 }
105
106 static int
l2fwd_parse_port_pair_config(const char * q_arg,struct l2fwd_resources * rsrc)107 l2fwd_parse_port_pair_config(const char *q_arg, struct l2fwd_resources *rsrc)
108 {
109 enum fieldnames {
110 FLD_PORT1 = 0,
111 FLD_PORT2,
112 _NUM_FLD
113 };
114 const char *p, *p0 = q_arg;
115 uint16_t int_fld[_NUM_FLD];
116 char *str_fld[_NUM_FLD];
117 uint16_t port_pair = 0;
118 unsigned int size;
119 char s[256];
120 char *end;
121 int i;
122
123 while ((p = strchr(p0, '(')) != NULL) {
124 ++p;
125 p0 = strchr(p, ')');
126 if (p0 == NULL)
127 return -1;
128
129 size = p0 - p;
130 if (size >= sizeof(s))
131 return -1;
132
133 memcpy(s, p, size);
134 if (rte_strsplit(s, sizeof(s), str_fld,
135 _NUM_FLD, ',') != _NUM_FLD)
136 return -1;
137
138 for (i = 0; i < _NUM_FLD; i++) {
139 errno = 0;
140 int_fld[i] = strtoul(str_fld[i], &end, 0);
141 if (errno != 0 || end == str_fld[i] ||
142 int_fld[i] >= RTE_MAX_ETHPORTS)
143 return -1;
144 }
145
146 if (port_pair >= RTE_MAX_ETHPORTS / 2) {
147 printf("exceeded max number of port pair params: Current %d Max = %d\n",
148 port_pair, RTE_MAX_ETHPORTS / 2);
149 return -1;
150 }
151
152 if ((rsrc->dst_ports[int_fld[FLD_PORT1]] != UINT32_MAX) ||
153 (rsrc->dst_ports[int_fld[FLD_PORT2]] != UINT32_MAX)) {
154 printf("Duplicate port pair (%d,%d) config\n",
155 int_fld[FLD_PORT1], int_fld[FLD_PORT2]);
156 return -1;
157 }
158
159 rsrc->dst_ports[int_fld[FLD_PORT1]] = int_fld[FLD_PORT2];
160 rsrc->dst_ports[int_fld[FLD_PORT2]] = int_fld[FLD_PORT1];
161
162 port_pair++;
163 }
164
165 rsrc->port_pairs = true;
166
167 return 0;
168 }
169
170 static const char short_options[] =
171 "p:" /* portmask */
172 "q:" /* number of queues */
173 "T:" /* timer period */
174 ;
175
176 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating"
177 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating"
178 #define CMD_LINE_OPT_MODE "mode"
179 #define CMD_LINE_OPT_EVENTQ_SCHED "eventq-sched"
180 #define CMD_LINE_OPT_PORT_PAIR_CONF "config"
181 #define CMD_LINE_OPT_ENABLE_VECTOR "event-vector"
182 #define CMD_LINE_OPT_VECTOR_SIZE "event-vector-size"
183 #define CMD_LINE_OPT_VECTOR_TMO_NS "event-vector-tmo"
184
185 enum {
186 /* long options mapped to a short option */
187
188 /* first long only option value must be >= 256, so that we won't
189 * conflict with short options
190 */
191 CMD_LINE_OPT_MIN_NUM = 256,
192 CMD_LINE_OPT_MODE_NUM,
193 CMD_LINE_OPT_EVENTQ_SCHED_NUM,
194 CMD_LINE_OPT_PORT_PAIR_CONF_NUM,
195 CMD_LINE_OPT_ENABLE_VECTOR_NUM,
196 CMD_LINE_OPT_VECTOR_SIZE_NUM,
197 CMD_LINE_OPT_VECTOR_TMO_NS_NUM
198 };
199
200 /* Parse the argument given in the command line of the application */
201 static int
l2fwd_event_parse_args(int argc,char ** argv,struct l2fwd_resources * rsrc)202 l2fwd_event_parse_args(int argc, char **argv, struct l2fwd_resources *rsrc)
203 {
204 int mac_updating = 1;
205 struct option lgopts[] = {
206 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
207 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
208 { CMD_LINE_OPT_MODE, required_argument, NULL,
209 CMD_LINE_OPT_MODE_NUM},
210 { CMD_LINE_OPT_EVENTQ_SCHED, required_argument, NULL,
211 CMD_LINE_OPT_EVENTQ_SCHED_NUM},
212 { CMD_LINE_OPT_PORT_PAIR_CONF, required_argument, NULL,
213 CMD_LINE_OPT_PORT_PAIR_CONF_NUM},
214 {CMD_LINE_OPT_ENABLE_VECTOR, no_argument, NULL,
215 CMD_LINE_OPT_ENABLE_VECTOR_NUM},
216 {CMD_LINE_OPT_VECTOR_SIZE, required_argument, NULL,
217 CMD_LINE_OPT_VECTOR_SIZE_NUM},
218 {CMD_LINE_OPT_VECTOR_TMO_NS, required_argument, NULL,
219 CMD_LINE_OPT_VECTOR_TMO_NS_NUM},
220 {NULL, 0, 0, 0}
221 };
222 int opt, ret, timer_secs;
223 char *prgname = argv[0];
224 uint16_t port_id;
225 int option_index;
226 char **argvopt;
227
228 /* Reset l2fwd_dst_ports. 8< */
229 for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++)
230 rsrc->dst_ports[port_id] = UINT32_MAX;
231
232 argvopt = argv;
233 while ((opt = getopt_long(argc, argvopt, short_options,
234 lgopts, &option_index)) != EOF) {
235
236 switch (opt) {
237 /* portmask */
238 case 'p':
239 rsrc->enabled_port_mask =
240 l2fwd_event_parse_portmask(optarg);
241 if (rsrc->enabled_port_mask == 0) {
242 printf("invalid portmask\n");
243 l2fwd_event_usage(prgname);
244 return -1;
245 }
246 break;
247
248 /* nqueue */
249 case 'q':
250 rsrc->rx_queue_per_lcore =
251 l2fwd_event_parse_nqueue(optarg);
252 if (rsrc->rx_queue_per_lcore == 0) {
253 printf("invalid queue number\n");
254 l2fwd_event_usage(prgname);
255 return -1;
256 }
257 break;
258
259 /* timer period */
260 case 'T':
261 timer_secs = l2fwd_event_parse_timer_period(optarg);
262 if (timer_secs < 0) {
263 printf("invalid timer period\n");
264 l2fwd_event_usage(prgname);
265 return -1;
266 }
267 rsrc->timer_period = timer_secs;
268 /* convert to number of cycles */
269 rsrc->timer_period *= rte_get_timer_hz();
270 break;
271
272 case CMD_LINE_OPT_MODE_NUM:
273 l2fwd_event_parse_mode(optarg, rsrc);
274 break;
275
276 case CMD_LINE_OPT_EVENTQ_SCHED_NUM:
277 l2fwd_event_parse_eventq_sched(optarg, rsrc);
278 break;
279
280 case CMD_LINE_OPT_PORT_PAIR_CONF_NUM:
281 ret = l2fwd_parse_port_pair_config(optarg, rsrc);
282 if (ret) {
283 printf("Invalid port pair config\n");
284 l2fwd_event_usage(prgname);
285 return -1;
286 }
287 break;
288 case CMD_LINE_OPT_ENABLE_VECTOR_NUM:
289 printf("event vectorization is enabled\n");
290 rsrc->evt_vec.enabled = 1;
291 break;
292 case CMD_LINE_OPT_VECTOR_SIZE_NUM:
293 rsrc->evt_vec.size = strtol(optarg, NULL, 10);
294 break;
295 case CMD_LINE_OPT_VECTOR_TMO_NS_NUM:
296 rsrc->evt_vec.timeout_ns = strtoull(optarg, NULL, 10);
297 break;
298
299 /* long options */
300 case 0:
301 break;
302
303 default:
304 l2fwd_event_usage(prgname);
305 return -1;
306 }
307 }
308
309 rsrc->mac_updating = mac_updating;
310
311 if (rsrc->evt_vec.enabled && !rsrc->evt_vec.size) {
312 rsrc->evt_vec.size = VECTOR_SIZE_DEFAULT;
313 printf("vector size set to default (%" PRIu16 ")\n",
314 rsrc->evt_vec.size);
315 }
316
317 if (rsrc->evt_vec.enabled && !rsrc->evt_vec.timeout_ns) {
318 rsrc->evt_vec.timeout_ns = VECTOR_TMO_NS_DEFAULT;
319 printf("vector timeout set to default (%" PRIu64 " ns)\n",
320 rsrc->evt_vec.timeout_ns);
321 }
322
323 if (optind >= 0)
324 argv[optind-1] = prgname;
325
326 ret = optind-1;
327 optind = 1; /* reset getopt lib */
328 return ret;
329 /* >8 End of reset l2fwd_dst_ports. */
330 }
331
332 /*
333 * Check port pair config with enabled port mask,
334 * and for valid port pair combinations.
335 */
336 static int
check_port_pair_config(struct l2fwd_resources * rsrc)337 check_port_pair_config(struct l2fwd_resources *rsrc)
338 {
339 uint32_t port_pair_mask = 0;
340 uint32_t portid;
341 uint16_t index;
342
343 for (index = 0; index < rte_eth_dev_count_avail(); index++) {
344 if ((rsrc->enabled_port_mask & (1 << index)) == 0 ||
345 (port_pair_mask & (1 << index)))
346 continue;
347
348 portid = rsrc->dst_ports[index];
349 if (portid == UINT32_MAX) {
350 printf("port %u is enabled in but no valid port pair\n",
351 index);
352 return -1;
353 }
354
355 if (!rte_eth_dev_is_valid_port(index)) {
356 printf("port %u is not valid\n", index);
357 return -1;
358 }
359
360 if (!rte_eth_dev_is_valid_port(portid)) {
361 printf("port %u is not valid\n", portid);
362 return -1;
363 }
364
365 if (port_pair_mask & (1 << portid) &&
366 rsrc->dst_ports[portid] != index) {
367 printf("port %u is used in other port pairs\n", portid);
368 return -1;
369 }
370
371 port_pair_mask |= (1 << portid);
372 port_pair_mask |= (1 << index);
373 }
374
375 return 0;
376 }
377
378 static int
l2fwd_launch_one_lcore(void * args)379 l2fwd_launch_one_lcore(void *args)
380 {
381 struct l2fwd_resources *rsrc = args;
382 struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
383 struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
384
385 if (rsrc->event_mode)
386 evt_rsrc->ops.l2fwd_event_loop(rsrc);
387 else
388 poll_rsrc->poll_main_loop(rsrc);
389
390 return 0;
391 }
392
393 /* Check the link status of all ports in up to 9s, and print them finally */
394 static void
check_all_ports_link_status(struct l2fwd_resources * rsrc,uint32_t port_mask)395 check_all_ports_link_status(struct l2fwd_resources *rsrc,
396 uint32_t port_mask)
397 {
398 #define CHECK_INTERVAL 100 /* 100ms */
399 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
400 uint16_t port_id;
401 uint8_t count, all_ports_up, print_flag = 0;
402 struct rte_eth_link link;
403 int ret;
404 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
405
406 printf("\nChecking link status...");
407 fflush(stdout);
408 for (count = 0; count <= MAX_CHECK_TIME; count++) {
409 if (rsrc->force_quit)
410 return;
411 all_ports_up = 1;
412 RTE_ETH_FOREACH_DEV(port_id) {
413 if (rsrc->force_quit)
414 return;
415 if ((port_mask & (1 << port_id)) == 0)
416 continue;
417 memset(&link, 0, sizeof(link));
418 ret = rte_eth_link_get_nowait(port_id, &link);
419 if (ret < 0) {
420 all_ports_up = 0;
421 if (print_flag == 1)
422 printf("Port %u link get failed: %s\n",
423 port_id, rte_strerror(-ret));
424 continue;
425 }
426 /* print link status if flag set */
427 if (print_flag == 1) {
428 rte_eth_link_to_str(link_status_text,
429 sizeof(link_status_text), &link);
430 printf("Port %d %s\n", port_id,
431 link_status_text);
432 continue;
433 }
434 /* clear all_ports_up flag if any link down */
435 if (link.link_status == RTE_ETH_LINK_DOWN) {
436 all_ports_up = 0;
437 break;
438 }
439 }
440 /* after finally printing all link status, get out */
441 if (print_flag == 1)
442 break;
443
444 if (all_ports_up == 0) {
445 printf(".");
446 fflush(stdout);
447 rte_delay_ms(CHECK_INTERVAL);
448 }
449
450 /* set the print_flag if all ports up or timeout */
451 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
452 print_flag = 1;
453 printf("done\n");
454 }
455 }
456 }
457
458 /* Print out statistics on packets dropped */
459 static void
print_stats(struct l2fwd_resources * rsrc)460 print_stats(struct l2fwd_resources *rsrc)
461 {
462 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
463 uint32_t port_id;
464
465 total_packets_dropped = 0;
466 total_packets_tx = 0;
467 total_packets_rx = 0;
468
469 const char clr[] = {27, '[', '2', 'J', '\0' };
470 const char topLeft[] = {27, '[', '1', ';', '1', 'H', '\0' };
471
472 /* Clear screen and move to top left */
473 printf("%s%s", clr, topLeft);
474
475 printf("\nPort statistics ====================================");
476
477 for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++) {
478 /* skip disabled ports */
479 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
480 continue;
481 printf("\nStatistics for port %u ------------------------------"
482 "\nPackets sent: %29"PRIu64
483 "\nPackets received: %25"PRIu64
484 "\nPackets dropped: %26"PRIu64,
485 port_id,
486 rsrc->port_stats[port_id].tx,
487 rsrc->port_stats[port_id].rx,
488 rsrc->port_stats[port_id].dropped);
489
490 total_packets_dropped +=
491 rsrc->port_stats[port_id].dropped;
492 total_packets_tx += rsrc->port_stats[port_id].tx;
493 total_packets_rx += rsrc->port_stats[port_id].rx;
494 }
495
496 if (rsrc->event_mode) {
497 struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
498 struct rte_event_eth_rx_adapter_stats rx_adptr_stats;
499 struct rte_event_eth_tx_adapter_stats tx_adptr_stats;
500 int ret, i;
501
502 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++) {
503 ret = rte_event_eth_rx_adapter_stats_get(
504 evt_rsrc->rx_adptr.rx_adptr[i],
505 &rx_adptr_stats);
506 if (ret < 0)
507 continue;
508 printf("\nRx adapter[%d] statistics===================="
509 "\nReceive queue poll count: %17"PRIu64
510 "\nReceived packet count: %20"PRIu64
511 "\nEventdev enqueue count: %19"PRIu64
512 "\nEventdev enqueue retry count: %13"PRIu64
513 "\nReceived packet dropped count: %12"PRIu64
514 "\nRx enqueue start timestamp: %15"PRIu64
515 "\nRx enqueue block cycles: %18"PRIu64
516 "\nRx enqueue unblock timestamp: %13"PRIu64,
517 evt_rsrc->rx_adptr.rx_adptr[i],
518 rx_adptr_stats.rx_poll_count,
519 rx_adptr_stats.rx_packets,
520 rx_adptr_stats.rx_enq_count,
521 rx_adptr_stats.rx_enq_retry,
522 rx_adptr_stats.rx_dropped,
523 rx_adptr_stats.rx_enq_start_ts,
524 rx_adptr_stats.rx_enq_block_cycles,
525 rx_adptr_stats.rx_enq_end_ts);
526 }
527 for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++) {
528 ret = rte_event_eth_tx_adapter_stats_get(
529 evt_rsrc->tx_adptr.tx_adptr[i],
530 &tx_adptr_stats);
531 if (ret < 0)
532 continue;
533 printf("\nTx adapter[%d] statistics===================="
534 "\nNumber of transmit retries: %15"PRIu64
535 "\nNumber of packets transmitted: %12"PRIu64
536 "\nNumber of packets dropped: %16"PRIu64,
537 evt_rsrc->tx_adptr.tx_adptr[i],
538 tx_adptr_stats.tx_retry,
539 tx_adptr_stats.tx_packets,
540 tx_adptr_stats.tx_dropped);
541 }
542 }
543 printf("\nAggregate lcore statistics ========================="
544 "\nTotal packets sent: %23"PRIu64
545 "\nTotal packets received: %19"PRIu64
546 "\nTotal packets dropped: %20"PRIu64,
547 total_packets_tx,
548 total_packets_rx,
549 total_packets_dropped);
550 printf("\n====================================================\n");
551
552 fflush(stdout);
553 }
554
555 static void
l2fwd_event_print_stats(struct l2fwd_resources * rsrc)556 l2fwd_event_print_stats(struct l2fwd_resources *rsrc)
557 {
558 uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
559 const uint64_t timer_period = rsrc->timer_period;
560
561 while (!rsrc->force_quit) {
562 /* if timer is enabled */
563 if (timer_period > 0) {
564 cur_tsc = rte_rdtsc();
565 diff_tsc = cur_tsc - prev_tsc;
566
567 /* advance the timer */
568 timer_tsc += diff_tsc;
569
570 /* if timer has reached its timeout */
571 if (unlikely(timer_tsc >= timer_period)) {
572 print_stats(rsrc);
573 /* reset the timer */
574 timer_tsc = 0;
575 }
576 prev_tsc = cur_tsc;
577 }
578 }
579 }
580
581
582 static void
signal_handler(int signum)583 signal_handler(int signum)
584 {
585 struct l2fwd_resources *rsrc = l2fwd_get_rsrc();
586 if (signum == SIGINT || signum == SIGTERM) {
587 printf("\n\nSignal %d received, preparing to exit...\n",
588 signum);
589 rsrc->force_quit = true;
590 }
591 }
592
593 int
main(int argc,char ** argv)594 main(int argc, char **argv)
595 {
596 struct l2fwd_resources *rsrc;
597 uint16_t nb_ports_available = 0;
598 uint32_t nb_ports_in_mask = 0;
599 uint16_t port_id, last_port;
600 uint32_t nb_mbufs;
601 uint16_t nb_ports;
602 int i, ret;
603
604 /* Init EAL. 8< */
605 ret = rte_eal_init(argc, argv);
606 if (ret < 0)
607 rte_panic("Invalid EAL arguments\n");
608 argc -= ret;
609 argv += ret;
610
611 rsrc = l2fwd_get_rsrc();
612
613 signal(SIGINT, signal_handler);
614 signal(SIGTERM, signal_handler);
615
616 /* parse application arguments (after the EAL ones) */
617 ret = l2fwd_event_parse_args(argc, argv, rsrc);
618 if (ret < 0)
619 rte_panic("Invalid L2FWD arguments\n");
620 /* >8 End of init EAL. */
621
622 printf("MAC updating %s\n", rsrc->mac_updating ? "enabled" :
623 "disabled");
624
625 nb_ports = rte_eth_dev_count_avail();
626 if (nb_ports == 0)
627 rte_panic("No Ethernet ports - bye\n");
628
629 /* check port mask to possible port mask */
630 if (rsrc->enabled_port_mask & ~((1 << nb_ports) - 1))
631 rte_panic("Invalid portmask; possible (0x%x)\n",
632 (1 << nb_ports) - 1);
633
634 if (!rsrc->port_pairs) {
635 last_port = 0;
636 /*
637 * Each logical core is assigned a dedicated TX queue on each
638 * port.
639 */
640 RTE_ETH_FOREACH_DEV(port_id) {
641 /* skip ports that are not enabled */
642 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
643 continue;
644
645 if (nb_ports_in_mask % 2) {
646 rsrc->dst_ports[port_id] = last_port;
647 rsrc->dst_ports[last_port] = port_id;
648 } else {
649 last_port = port_id;
650 }
651
652 nb_ports_in_mask++;
653 }
654 if (nb_ports_in_mask % 2) {
655 printf("Notice: odd number of ports in portmask.\n");
656 rsrc->dst_ports[last_port] = last_port;
657 }
658 } else {
659 if (check_port_pair_config(rsrc) < 0)
660 rte_panic("Invalid port pair config\n");
661 }
662
663 nb_mbufs = RTE_MAX(nb_ports * (RX_DESC_DEFAULT +
664 TX_DESC_DEFAULT +
665 MAX_PKT_BURST + rte_lcore_count() *
666 MEMPOOL_CACHE_SIZE), 8192U);
667
668 /* Create the mbuf pool. 8< */
669 rsrc->pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
670 nb_mbufs, MEMPOOL_CACHE_SIZE, 0,
671 RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
672 if (rsrc->pktmbuf_pool == NULL)
673 rte_panic("Cannot init mbuf pool\n");
674 /* >8 End of creation of mbuf pool. */
675
676 if (rsrc->evt_vec.enabled) {
677 unsigned int nb_vec, vec_size;
678
679 vec_size = rsrc->evt_vec.size;
680 nb_vec = (nb_mbufs + vec_size - 1) / vec_size;
681 nb_vec = RTE_MAX(512U, nb_vec);
682 nb_vec += rte_lcore_count() * 32;
683 rsrc->evt_vec_pool = rte_event_vector_pool_create(
684 "vector_pool", nb_vec, 32, vec_size, rte_socket_id());
685 if (rsrc->evt_vec_pool == NULL)
686 rte_panic("Cannot init event vector pool\n");
687 }
688
689 nb_ports_available = l2fwd_event_init_ports(rsrc);
690 if (!nb_ports_available)
691 rte_panic("All available ports are disabled. Please set portmask.\n");
692
693 /* Configure eventdev parameters if required */
694 if (rsrc->event_mode)
695 l2fwd_event_resource_setup(rsrc);
696 else
697 l2fwd_poll_resource_setup(rsrc);
698
699 /* initialize port stats */
700 memset(&rsrc->port_stats, 0,
701 sizeof(struct l2fwd_port_statistics));
702
703 /* All settings are done. Now enable eth devices */
704 RTE_ETH_FOREACH_DEV(port_id) {
705 /* skip ports that are not enabled */
706 if ((rsrc->enabled_port_mask &
707 (1 << port_id)) == 0)
708 continue;
709
710 ret = rte_eth_dev_start(port_id);
711 if (ret < 0)
712 rte_panic("rte_eth_dev_start:err=%d, port=%u\n", ret,
713 port_id);
714 }
715
716 if (rsrc->event_mode)
717 l2fwd_event_service_setup(rsrc);
718
719 check_all_ports_link_status(rsrc, rsrc->enabled_port_mask);
720
721 /* launch per-lcore init on every lcore */
722 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, rsrc,
723 SKIP_MAIN);
724 l2fwd_event_print_stats(rsrc);
725 if (rsrc->event_mode) {
726 struct l2fwd_event_resources *evt_rsrc =
727 rsrc->evt_rsrc;
728 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++)
729 rte_event_eth_rx_adapter_stop(
730 evt_rsrc->rx_adptr.rx_adptr[i]);
731 for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++)
732 rte_event_eth_tx_adapter_stop(
733 evt_rsrc->tx_adptr.tx_adptr[i]);
734
735 RTE_ETH_FOREACH_DEV(port_id) {
736 if ((rsrc->enabled_port_mask &
737 (1 << port_id)) == 0)
738 continue;
739 ret = rte_eth_dev_stop(port_id);
740 if (ret < 0)
741 printf("rte_eth_dev_stop:err=%d, port=%u\n",
742 ret, port_id);
743 }
744
745 rte_eal_mp_wait_lcore();
746 RTE_ETH_FOREACH_DEV(port_id) {
747 if ((rsrc->enabled_port_mask &
748 (1 << port_id)) == 0)
749 continue;
750 rte_eth_dev_close(port_id);
751 }
752
753 rte_event_dev_stop(evt_rsrc->event_d_id);
754 rte_event_dev_close(evt_rsrc->event_d_id);
755
756 } else {
757 rte_eal_mp_wait_lcore();
758
759 RTE_ETH_FOREACH_DEV(port_id) {
760 if ((rsrc->enabled_port_mask &
761 (1 << port_id)) == 0)
762 continue;
763 printf("Closing port %d...", port_id);
764 ret = rte_eth_dev_stop(port_id);
765 if (ret < 0)
766 printf("rte_eth_dev_stop:err=%d, port=%u\n",
767 ret, port_id);
768 rte_eth_dev_close(port_id);
769 printf(" Done\n");
770 }
771 }
772
773 /* clean up the EAL */
774 rte_eal_cleanup();
775 printf("Bye...\n");
776
777 return 0;
778 }
779