1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
12 #include <rte_common.h>
14 #include <rte_malloc.h>
15 #include <rte_memory.h>
16 #include <rte_memcpy.h>
18 #include <rte_launch.h>
19 #include <rte_atomic.h>
20 #include <rte_cycles.h>
21 #include <rte_prefetch.h>
22 #include <rte_lcore.h>
23 #include <rte_per_lcore.h>
24 #include <rte_branch_prediction.h>
25 #include <rte_interrupts.h>
26 #include <rte_debug.h>
27 #include <rte_ether.h>
28 #include <rte_ethdev.h>
29 #include <rte_mempool.h>
31 #include <rte_spinlock.h>
33 #include <rte_errno.h>
34 #include <rte_jobstats.h>
35 #include <rte_timer.h>
36 #include <rte_alarm.h>
37 #include <rte_pause.h>
39 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
43 #define MAX_PKT_BURST 32
44 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
47 * Configurable number of RX/TX ring descriptors
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;
54 /* ethernet addresses of ports */
55 static struct rte_ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
57 /* mask of enabled ports */
58 static uint32_t l2fwd_enabled_port_mask;
60 /* list of enabled ports */
61 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
63 #define UPDATE_STEP_UP 1
64 #define UPDATE_STEP_DOWN 32
66 static unsigned int l2fwd_rx_queue_per_lcore = 1;
68 #define MAX_RX_QUEUE_PER_LCORE 16
69 #define MAX_TX_QUEUE_PER_PORT 16
70 /* List of queues to be polled for given lcore. 8< */
71 struct lcore_queue_conf {
73 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
74 uint64_t next_flush_time[RTE_MAX_ETHPORTS];
76 struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE];
77 struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE];
79 struct rte_timer flush_timer;
80 struct rte_jobstats flush_job;
81 struct rte_jobstats idle_job;
82 struct rte_jobstats_context jobs_context;
84 rte_atomic16_t stats_read_pending;
86 } __rte_cache_aligned;
87 /* >8 End of list of queues to be polled for given lcore. */
88 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
90 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
92 static struct rte_eth_conf port_conf = {
97 .mq_mode = ETH_MQ_TX_NONE,
101 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
103 /* Per-port statistics struct */
104 struct l2fwd_port_statistics {
108 } __rte_cache_aligned;
109 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
112 #define MAX_TIMER_PERIOD 86400
113 /* default period is 10 seconds */
114 static int64_t timer_period = 10;
115 /* default timer frequency */
117 /* BURST_TX_DRAIN_US converted to cycles */
119 /* Convert cycles to ns */
121 cycles_to_ns(uint64_t cycles)
125 t *= (double)NS_PER_S;
131 show_lcore_stats(unsigned lcore_id)
133 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
134 struct rte_jobstats_context *ctx = &qconf->jobs_context;
135 struct rte_jobstats *job;
138 /* LCore statistics. */
139 uint64_t stats_period, loop_count;
140 uint64_t exec, exec_min, exec_max;
141 uint64_t management, management_min, management_max;
142 uint64_t busy, busy_min, busy_max;
144 /* Jobs statistics. */
145 const uint16_t port_cnt = qconf->n_rx_port;
146 uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt];
147 uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt],
148 jobs_exec_max[port_cnt];
150 uint64_t flush_exec_cnt, flush_period;
151 uint64_t flush_exec, flush_exec_min, flush_exec_max;
153 uint64_t idle_exec_cnt;
154 uint64_t idle_exec, idle_exec_min, idle_exec_max;
155 uint64_t collection_time = rte_get_timer_cycles();
157 /* Ask forwarding thread to give us stats. */
158 rte_atomic16_set(&qconf->stats_read_pending, 1);
159 rte_spinlock_lock(&qconf->lock);
160 rte_atomic16_set(&qconf->stats_read_pending, 0);
162 /* Collect context statistics. */
163 stats_period = ctx->state_time - ctx->start_time;
164 loop_count = ctx->loop_cnt;
166 exec = ctx->exec_time;
167 exec_min = ctx->min_exec_time;
168 exec_max = ctx->max_exec_time;
170 management = ctx->management_time;
171 management_min = ctx->min_management_time;
172 management_max = ctx->max_management_time;
174 rte_jobstats_context_reset(ctx);
176 for (i = 0; i < port_cnt; i++) {
177 job = &qconf->port_fwd_jobs[i];
179 jobs_exec_cnt[i] = job->exec_cnt;
180 jobs_period[i] = job->period;
182 jobs_exec[i] = job->exec_time;
183 jobs_exec_min[i] = job->min_exec_time;
184 jobs_exec_max[i] = job->max_exec_time;
186 rte_jobstats_reset(job);
189 flush_exec_cnt = qconf->flush_job.exec_cnt;
190 flush_period = qconf->flush_job.period;
191 flush_exec = qconf->flush_job.exec_time;
192 flush_exec_min = qconf->flush_job.min_exec_time;
193 flush_exec_max = qconf->flush_job.max_exec_time;
194 rte_jobstats_reset(&qconf->flush_job);
196 idle_exec_cnt = qconf->idle_job.exec_cnt;
197 idle_exec = qconf->idle_job.exec_time;
198 idle_exec_min = qconf->idle_job.min_exec_time;
199 idle_exec_max = qconf->idle_job.max_exec_time;
200 rte_jobstats_reset(&qconf->idle_job);
202 rte_spinlock_unlock(&qconf->lock);
205 busy = exec + management;
206 busy_min = exec_min + management_min;
207 busy_max = exec_max + management_max;
210 collection_time = rte_get_timer_cycles() - collection_time;
212 #define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f"
214 printf("\n----------------"
215 "\nLCore %3u: statistics (time in ns, collected in %'9.0f)"
216 "\n%-18s %14s %7s %10s %10s %10s "
218 "\n%-18s %'14" PRIu64
220 STAT_FMT /* Management */
223 lcore_id, cycles_to_ns(collection_time),
224 "Stat type", "total", "%total", "avg", "min", "max",
225 "Stats duration:", cycles_to_ns(stats_period),
226 "Loop count:", loop_count,
228 cycles_to_ns(exec), exec * 100.0 / stats_period,
229 cycles_to_ns(loop_count ? exec / loop_count : 0),
230 cycles_to_ns(exec_min),
231 cycles_to_ns(exec_max),
233 cycles_to_ns(management), management * 100.0 / stats_period,
234 cycles_to_ns(loop_count ? management / loop_count : 0),
235 cycles_to_ns(management_min),
236 cycles_to_ns(management_max),
238 cycles_to_ns(busy), busy * 100.0 / stats_period,
239 cycles_to_ns(loop_count ? busy / loop_count : 0),
240 cycles_to_ns(busy_min),
241 cycles_to_ns(busy_max),
243 cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period,
244 cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0),
245 cycles_to_ns(idle_exec_min),
246 cycles_to_ns(idle_exec_max));
248 for (i = 0; i < qconf->n_rx_port; i++) {
249 job = &qconf->port_fwd_jobs[i];
250 printf("\n\nJob %" PRIu32 ": %-20s "
251 "\n%-18s %'14" PRIu64
255 "Exec count:", jobs_exec_cnt[i],
256 "Exec period: ", cycles_to_ns(jobs_period[i]),
258 cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period,
259 cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i]
261 cycles_to_ns(jobs_exec_min[i]),
262 cycles_to_ns(jobs_exec_max[i]));
265 if (qconf->n_rx_port > 0) {
266 job = &qconf->flush_job;
267 printf("\n\nJob %" PRIu32 ": %-20s "
268 "\n%-18s %'14" PRIu64
272 "Exec count:", flush_exec_cnt,
273 "Exec period: ", cycles_to_ns(flush_period),
275 cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period,
276 cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0),
277 cycles_to_ns(flush_exec_min),
278 cycles_to_ns(flush_exec_max));
282 /* Print out statistics on packets dropped */
284 show_stats_cb(__rte_unused void *param)
286 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
287 unsigned portid, lcore_id;
289 total_packets_dropped = 0;
290 total_packets_tx = 0;
291 total_packets_rx = 0;
293 const char clr[] = { 27, '[', '2', 'J', '\0' };
294 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
296 /* Clear screen and move to top left */
298 "\nPort statistics ===================================",
301 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
302 /* skip disabled ports */
303 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
305 printf("\nStatistics for port %u ------------------------------"
306 "\nPackets sent: %24"PRIu64
307 "\nPackets received: %20"PRIu64
308 "\nPackets dropped: %21"PRIu64,
310 port_statistics[portid].tx,
311 port_statistics[portid].rx,
312 port_statistics[portid].dropped);
314 total_packets_dropped += port_statistics[portid].dropped;
315 total_packets_tx += port_statistics[portid].tx;
316 total_packets_rx += port_statistics[portid].rx;
319 printf("\nAggregate statistics ==============================="
320 "\nTotal packets sent: %18"PRIu64
321 "\nTotal packets received: %14"PRIu64
322 "\nTotal packets dropped: %15"PRIu64
323 "\n====================================================",
326 total_packets_dropped);
328 RTE_LCORE_FOREACH(lcore_id) {
329 if (lcore_queue_conf[lcore_id].n_rx_port > 0)
330 show_lcore_stats(lcore_id);
333 printf("\n====================================================\n");
337 rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
340 /* Start of l2fwd_simple_forward. 8< */
342 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
344 struct rte_ether_hdr *eth;
348 struct rte_eth_dev_tx_buffer *buffer;
350 dst_port = l2fwd_dst_ports[portid];
351 eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
353 /* 02:00:00:00:00:xx */
354 tmp = ð->dst_addr.addr_bytes[0];
355 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
358 rte_ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->src_addr);
360 buffer = tx_buffer[dst_port];
361 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
363 port_statistics[dst_port].tx += sent;
365 /* >8 End of l2fwd_simple_forward. */
368 l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result)
370 int64_t err = job->target - result;
371 int64_t histeresis = job->target / 8;
373 if (err < -histeresis) {
374 if (job->min_period + UPDATE_STEP_DOWN < job->period)
375 job->period -= UPDATE_STEP_DOWN;
376 } else if (err > histeresis) {
377 if (job->period + UPDATE_STEP_UP < job->max_period)
378 job->period += UPDATE_STEP_UP;
383 l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg)
385 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
388 const uint16_t port_idx = (uintptr_t) arg;
389 const unsigned lcore_id = rte_lcore_id();
390 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
391 struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx];
392 const uint16_t portid = qconf->rx_port_list[port_idx];
395 uint16_t total_nb_rx;
397 rte_jobstats_start(&qconf->jobs_context, job);
399 /* Call rx burst 2 times. This allow rte_jobstats logic to see if this
400 * function must be called more frequently. */
402 /* Call rx burst 2 times. 8< */
403 total_nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
406 for (j = 0; j < total_nb_rx; j++) {
408 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
409 l2fwd_simple_forward(m, portid);
411 /* >8 End of call rx burst 2 times. */
413 /* Read second try. 8< */
414 if (total_nb_rx == MAX_PKT_BURST) {
415 const uint16_t nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
418 total_nb_rx += nb_rx;
419 for (j = 0; j < nb_rx; j++) {
421 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
422 l2fwd_simple_forward(m, portid);
425 /* >8 End of read second try. */
427 port_statistics[portid].rx += total_nb_rx;
429 /* Adjust period time in which we are running here. 8< */
430 if (rte_jobstats_finish(job, total_nb_rx) != 0) {
431 rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL,
432 lcore_id, l2fwd_fwd_job, arg);
434 /* >8 End of adjust period time in which we are running. */
437 /* Draining TX queue of each port. 8< */
439 l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
443 struct lcore_queue_conf *qconf;
447 struct rte_eth_dev_tx_buffer *buffer;
449 lcore_id = rte_lcore_id();
450 qconf = &lcore_queue_conf[lcore_id];
452 rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job);
454 now = rte_get_timer_cycles();
455 lcore_id = rte_lcore_id();
456 qconf = &lcore_queue_conf[lcore_id];
458 for (i = 0; i < qconf->n_rx_port; i++) {
459 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
461 if (qconf->next_flush_time[portid] <= now)
464 buffer = tx_buffer[portid];
465 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
467 port_statistics[portid].tx += sent;
469 qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc;
472 /* Pass target to indicate that this job is happy of time interwal
473 * in which it was called. */
474 rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target);
476 /* >8 End of draining TX queue of each port. */
478 /* main processing loop */
480 l2fwd_main_loop(void)
484 struct lcore_queue_conf *qconf;
485 uint8_t stats_read_pending = 0;
488 lcore_id = rte_lcore_id();
489 qconf = &lcore_queue_conf[lcore_id];
491 if (qconf->n_rx_port == 0) {
492 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
496 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
498 for (i = 0; i < qconf->n_rx_port; i++) {
500 portid = qconf->rx_port_list[i];
501 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
505 rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0);
507 /* Minimize impact of stats reading. 8< */
509 rte_spinlock_lock(&qconf->lock);
512 rte_jobstats_context_start(&qconf->jobs_context);
515 * - Read stats_read_pending flag
516 * - check if some real job need to be executed
518 rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job);
520 uint64_t repeats = 0;
524 uint64_t now = rte_get_timer_cycles();
527 need_manage = qconf->flush_timer.expire < now;
528 /* Check if we was esked to give a stats. */
530 rte_atomic16_read(&qconf->stats_read_pending);
531 need_manage |= stats_read_pending;
533 for (i = 0; i < qconf->n_rx_port && !need_manage; i++)
534 need_manage = qconf->rx_timers[i].expire < now;
536 } while (!need_manage);
538 if (likely(repeats != 1))
539 rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target);
541 rte_jobstats_abort(&qconf->idle_job);
544 rte_jobstats_context_finish(&qconf->jobs_context);
545 } while (likely(stats_read_pending == 0));
547 rte_spinlock_unlock(&qconf->lock);
550 /* >8 End of minimize impact of stats reading. */
554 l2fwd_launch_one_lcore(__rte_unused void *dummy)
562 l2fwd_usage(const char *prgname)
564 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
565 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
566 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
567 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n"
568 " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.",
573 l2fwd_parse_portmask(const char *portmask)
578 /* parse hexadecimal string */
579 pm = strtoul(portmask, &end, 16);
580 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
587 l2fwd_parse_nqueue(const char *q_arg)
592 /* parse hexadecimal string */
593 n = strtoul(q_arg, &end, 10);
594 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
598 if (n >= MAX_RX_QUEUE_PER_LCORE)
605 l2fwd_parse_timer_period(const char *q_arg)
610 /* parse number string */
611 n = strtol(q_arg, &end, 10);
612 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
614 if (n >= MAX_TIMER_PERIOD)
620 /* Parse the argument given in the command line of the application */
622 l2fwd_parse_args(int argc, char **argv)
627 char *prgname = argv[0];
628 static struct option lgopts[] = {
634 while ((opt = getopt_long(argc, argvopt, "p:q:T:l",
635 lgopts, &option_index)) != EOF) {
640 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
641 if (l2fwd_enabled_port_mask == 0) {
642 printf("invalid portmask\n");
643 l2fwd_usage(prgname);
650 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
651 if (l2fwd_rx_queue_per_lcore == 0) {
652 printf("invalid queue number\n");
653 l2fwd_usage(prgname);
660 timer_period = l2fwd_parse_timer_period(optarg);
661 if (timer_period < 0) {
662 printf("invalid timer period\n");
663 l2fwd_usage(prgname);
668 /* For thousands separator in printf. */
670 setlocale(LC_ALL, "");
675 l2fwd_usage(prgname);
679 l2fwd_usage(prgname);
685 argv[optind-1] = prgname;
688 optind = 1; /* reset getopt lib */
692 /* Check the link status of all ports in up to 9s, and print them finally */
694 check_all_ports_link_status(uint32_t port_mask)
696 #define CHECK_INTERVAL 100 /* 100ms */
697 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
699 uint8_t count, all_ports_up, print_flag = 0;
700 struct rte_eth_link link;
702 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
704 printf("\nChecking link status");
706 for (count = 0; count <= MAX_CHECK_TIME; count++) {
708 RTE_ETH_FOREACH_DEV(portid) {
709 if ((port_mask & (1 << portid)) == 0)
711 memset(&link, 0, sizeof(link));
712 ret = rte_eth_link_get_nowait(portid, &link);
716 printf("Port %u link get failed: %s\n",
717 portid, rte_strerror(-ret));
720 /* print link status if flag set */
721 if (print_flag == 1) {
722 rte_eth_link_to_str(link_status_text,
723 sizeof(link_status_text), &link);
724 printf("Port %d %s\n", portid,
728 /* clear all_ports_up flag if any link down */
729 if (link.link_status == ETH_LINK_DOWN) {
734 /* after finally printing all link status, get out */
738 if (all_ports_up == 0) {
741 rte_delay_ms(CHECK_INTERVAL);
744 /* set the print_flag if all ports up or timeout */
745 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
753 main(int argc, char **argv)
755 struct lcore_queue_conf *qconf;
756 unsigned lcore_id, rx_lcore_id;
757 unsigned nb_ports_in_mask = 0;
759 char name[RTE_JOBSTATS_NAMESIZE];
761 uint16_t nb_ports_available = 0;
762 uint16_t portid, last_port;
766 ret = rte_eal_init(argc, argv);
768 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
772 /* parse application arguments (after the EAL ones) */
773 ret = l2fwd_parse_args(argc, argv);
775 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
776 /* >8 End of init EAL. */
778 rte_timer_subsystem_init();
780 /* fetch default timer frequency. */
781 hz = rte_get_timer_hz();
783 /* Create the mbuf pool. 8< */
785 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
786 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
787 if (l2fwd_pktmbuf_pool == NULL)
788 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
789 /* >8 End of creation of mbuf pool. */
790 nb_ports = rte_eth_dev_count_avail();
792 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
794 /* Reset l2fwd_dst_ports. 8< */
795 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
796 l2fwd_dst_ports[portid] = 0;
800 * Each logical core is assigned a dedicated TX queue on each port.
802 RTE_ETH_FOREACH_DEV(portid) {
803 /* skip ports that are not enabled */
804 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
807 if (nb_ports_in_mask % 2) {
808 l2fwd_dst_ports[portid] = last_port;
809 l2fwd_dst_ports[last_port] = portid;
815 /* >8 End of reset l2fwd_dst_ports. */
816 if (nb_ports_in_mask % 2) {
817 printf("Notice: odd number of ports in portmask.\n");
818 l2fwd_dst_ports[last_port] = last_port;
824 /* Initialize the port/queue configuration of each logical core */
825 RTE_ETH_FOREACH_DEV(portid) {
826 /* skip ports that are not enabled */
827 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
830 /* get the lcore_id for this port */
831 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
832 lcore_queue_conf[rx_lcore_id].n_rx_port ==
833 l2fwd_rx_queue_per_lcore) {
835 if (rx_lcore_id >= RTE_MAX_LCORE)
836 rte_exit(EXIT_FAILURE, "Not enough cores\n");
839 if (qconf != &lcore_queue_conf[rx_lcore_id])
840 /* Assigned a new logical core in the loop above. */
841 qconf = &lcore_queue_conf[rx_lcore_id];
843 qconf->rx_port_list[qconf->n_rx_port] = portid;
845 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid);
848 /* Initialise each port */
849 RTE_ETH_FOREACH_DEV(portid) {
850 struct rte_eth_dev_info dev_info;
851 struct rte_eth_rxconf rxq_conf;
852 struct rte_eth_txconf txq_conf;
853 struct rte_eth_conf local_port_conf = port_conf;
855 /* skip ports that are not enabled */
856 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
857 printf("Skipping disabled port %u\n", portid);
860 nb_ports_available++;
863 printf("Initializing port %u... ", portid);
866 ret = rte_eth_dev_info_get(portid, &dev_info);
868 rte_exit(EXIT_FAILURE,
869 "Error during getting device (port %u) info: %s\n",
870 portid, strerror(-ret));
872 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
873 local_port_conf.txmode.offloads |=
874 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
875 /* Configure the RX and TX queues. 8< */
876 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
878 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
880 /* >8 End of configuring the RX and TX queues. */
882 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
885 rte_exit(EXIT_FAILURE,
886 "Cannot adjust number of descriptors: err=%d, port=%u\n",
889 ret = rte_eth_macaddr_get(portid,
890 &l2fwd_ports_eth_addr[portid]);
892 rte_exit(EXIT_FAILURE,
893 "Cannot get MAC address: err=%d, port=%u\n",
896 /* init one RX queue */
898 rxq_conf = dev_info.default_rxconf;
899 rxq_conf.offloads = local_port_conf.rxmode.offloads;
900 /* RX queue initialization. 8< */
901 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
902 rte_eth_dev_socket_id(portid),
906 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
908 /* >8 End of RX queue initialization. */
910 /* Init one TX queue on each port. 8< */
911 txq_conf = dev_info.default_txconf;
912 txq_conf.offloads = local_port_conf.txmode.offloads;
914 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
915 rte_eth_dev_socket_id(portid),
918 rte_exit(EXIT_FAILURE,
919 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
921 /* >8 End of init one TX queue on each port. */
923 /* Initialize TX buffers */
924 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
925 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
926 rte_eth_dev_socket_id(portid));
927 if (tx_buffer[portid] == NULL)
928 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
931 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
933 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
934 rte_eth_tx_buffer_count_callback,
935 &port_statistics[portid].dropped);
937 rte_exit(EXIT_FAILURE,
938 "Cannot set error callback for tx buffer on port %u\n",
942 ret = rte_eth_dev_start(portid);
944 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
949 ret = rte_eth_promiscuous_enable(portid);
951 rte_exit(EXIT_FAILURE,
952 "rte_eth_promiscuous_enable:err=%s, port=%u\n",
953 rte_strerror(-ret), portid);
958 printf("Port %u, MAC address: " RTE_ETHER_ADDR_PRT_FMT "\n\n",
960 RTE_ETHER_ADDR_BYTES(&l2fwd_ports_eth_addr[portid]));
962 /* initialize port stats */
963 memset(&port_statistics, 0, sizeof(port_statistics));
966 if (!nb_ports_available) {
967 rte_exit(EXIT_FAILURE,
968 "All available ports are disabled. Please set portmask.\n");
971 check_all_ports_link_status(l2fwd_enabled_port_mask);
973 drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
975 RTE_LCORE_FOREACH(lcore_id) {
976 qconf = &lcore_queue_conf[lcore_id];
978 rte_spinlock_init(&qconf->lock);
980 if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
981 rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
983 if (qconf->n_rx_port == 0) {
985 "lcore %u: no ports so no jobs stats context initialization\n",
989 /* Add flush job. 8< */
991 /* Set fixed period by setting min = max = initial period. Set target to
992 * zero as it is irrelevant for this job.
994 rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc,
997 rte_timer_init(&qconf->flush_timer);
998 ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL,
999 lcore_id, &l2fwd_flush_job, NULL);
1002 rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
1003 lcore_id, rte_strerror(-ret));
1005 /* >8 End of add flush job. */
1007 for (i = 0; i < qconf->n_rx_port; i++) {
1008 struct rte_jobstats *job = &qconf->port_fwd_jobs[i];
1010 portid = qconf->rx_port_list[i];
1011 printf("Setting forward job for port %u\n", portid);
1013 snprintf(name, RTE_DIM(name), "port %u fwd", portid);
1014 /* Setup forward job. 8< */
1016 /* Set min, max and initial period. Set target to MAX_PKT_BURST as
1017 * this is desired optimal RX/TX burst size.
1019 rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST);
1020 rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb);
1022 rte_timer_init(&qconf->rx_timers[i]);
1023 ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id,
1024 &l2fwd_fwd_job, (void *)(uintptr_t)i);
1027 rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
1028 lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
1030 /* >8 End of forward job. */
1035 rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL);
1037 RTE_LOG(INFO, L2FWD, "Stats display disabled\n");
1039 /* launch per-lcore init on every lcore */
1040 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MAIN);
1041 RTE_LCORE_FOREACH_WORKER(lcore_id) {
1042 if (rte_eal_wait_lcore(lcore_id) < 0)
1046 /* clean up the EAL */