4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in
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17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 #include <rte_common.h>
43 #include <rte_malloc.h>
44 #include <rte_memory.h>
45 #include <rte_memcpy.h>
47 #include <rte_launch.h>
48 #include <rte_atomic.h>
49 #include <rte_cycles.h>
50 #include <rte_prefetch.h>
51 #include <rte_lcore.h>
52 #include <rte_per_lcore.h>
53 #include <rte_branch_prediction.h>
54 #include <rte_interrupts.h>
55 #include <rte_debug.h>
56 #include <rte_ether.h>
57 #include <rte_ethdev.h>
58 #include <rte_mempool.h>
60 #include <rte_spinlock.h>
62 #include <rte_errno.h>
63 #include <rte_jobstats.h>
64 #include <rte_timer.h>
65 #include <rte_alarm.h>
66 #include <rte_pause.h>
68 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
72 #define MAX_PKT_BURST 32
73 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
76 * Configurable number of RX/TX ring descriptors
78 #define RTE_TEST_RX_DESC_DEFAULT 128
79 #define RTE_TEST_TX_DESC_DEFAULT 512
80 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
81 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
83 /* ethernet addresses of ports */
84 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
86 /* mask of enabled ports */
87 static uint32_t l2fwd_enabled_port_mask;
89 /* list of enabled ports */
90 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
92 #define UPDATE_STEP_UP 1
93 #define UPDATE_STEP_DOWN 32
95 static unsigned int l2fwd_rx_queue_per_lcore = 1;
97 #define MAX_RX_QUEUE_PER_LCORE 16
98 #define MAX_TX_QUEUE_PER_PORT 16
99 struct lcore_queue_conf {
101 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
102 uint64_t next_flush_time[RTE_MAX_ETHPORTS];
104 struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE];
105 struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE];
107 struct rte_timer flush_timer;
108 struct rte_jobstats flush_job;
109 struct rte_jobstats idle_job;
110 struct rte_jobstats_context jobs_context;
112 rte_atomic16_t stats_read_pending;
114 } __rte_cache_aligned;
115 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
117 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
119 static const struct rte_eth_conf port_conf = {
122 .header_split = 0, /**< Header Split disabled */
123 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
124 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
125 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
126 .hw_strip_crc = 1, /**< CRC stripped by hardware */
129 .mq_mode = ETH_MQ_TX_NONE,
133 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
135 /* Per-port statistics struct */
136 struct l2fwd_port_statistics {
140 } __rte_cache_aligned;
141 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
144 #define MAX_TIMER_PERIOD 86400
145 /* default period is 10 seconds */
146 static int64_t timer_period = 10;
147 /* default timer frequency */
149 /* BURST_TX_DRAIN_US converted to cycles */
151 /* Convert cycles to ns */
153 cycles_to_ns(uint64_t cycles)
157 t *= (double)NS_PER_S;
163 show_lcore_stats(unsigned lcore_id)
165 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
166 struct rte_jobstats_context *ctx = &qconf->jobs_context;
167 struct rte_jobstats *job;
170 /* LCore statistics. */
171 uint64_t stats_period, loop_count;
172 uint64_t exec, exec_min, exec_max;
173 uint64_t management, management_min, management_max;
174 uint64_t busy, busy_min, busy_max;
176 /* Jobs statistics. */
177 const uint16_t port_cnt = qconf->n_rx_port;
178 uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt];
179 uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt],
180 jobs_exec_max[port_cnt];
182 uint64_t flush_exec_cnt, flush_period;
183 uint64_t flush_exec, flush_exec_min, flush_exec_max;
185 uint64_t idle_exec_cnt;
186 uint64_t idle_exec, idle_exec_min, idle_exec_max;
187 uint64_t collection_time = rte_get_timer_cycles();
189 /* Ask forwarding thread to give us stats. */
190 rte_atomic16_set(&qconf->stats_read_pending, 1);
191 rte_spinlock_lock(&qconf->lock);
192 rte_atomic16_set(&qconf->stats_read_pending, 0);
194 /* Collect context statistics. */
195 stats_period = ctx->state_time - ctx->start_time;
196 loop_count = ctx->loop_cnt;
198 exec = ctx->exec_time;
199 exec_min = ctx->min_exec_time;
200 exec_max = ctx->max_exec_time;
202 management = ctx->management_time;
203 management_min = ctx->min_management_time;
204 management_max = ctx->max_management_time;
206 rte_jobstats_context_reset(ctx);
208 for (i = 0; i < port_cnt; i++) {
209 job = &qconf->port_fwd_jobs[i];
211 jobs_exec_cnt[i] = job->exec_cnt;
212 jobs_period[i] = job->period;
214 jobs_exec[i] = job->exec_time;
215 jobs_exec_min[i] = job->min_exec_time;
216 jobs_exec_max[i] = job->max_exec_time;
218 rte_jobstats_reset(job);
221 flush_exec_cnt = qconf->flush_job.exec_cnt;
222 flush_period = qconf->flush_job.period;
223 flush_exec = qconf->flush_job.exec_time;
224 flush_exec_min = qconf->flush_job.min_exec_time;
225 flush_exec_max = qconf->flush_job.max_exec_time;
226 rte_jobstats_reset(&qconf->flush_job);
228 idle_exec_cnt = qconf->idle_job.exec_cnt;
229 idle_exec = qconf->idle_job.exec_time;
230 idle_exec_min = qconf->idle_job.min_exec_time;
231 idle_exec_max = qconf->idle_job.max_exec_time;
232 rte_jobstats_reset(&qconf->idle_job);
234 rte_spinlock_unlock(&qconf->lock);
237 busy = exec + management;
238 busy_min = exec_min + management_min;
239 busy_max = exec_max + management_max;
242 collection_time = rte_get_timer_cycles() - collection_time;
244 #define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f"
246 printf("\n----------------"
247 "\nLCore %3u: statistics (time in ns, collected in %'9.0f)"
248 "\n%-18s %14s %7s %10s %10s %10s "
250 "\n%-18s %'14" PRIu64
252 STAT_FMT /* Management */
255 lcore_id, cycles_to_ns(collection_time),
256 "Stat type", "total", "%total", "avg", "min", "max",
257 "Stats duration:", cycles_to_ns(stats_period),
258 "Loop count:", loop_count,
260 cycles_to_ns(exec), exec * 100.0 / stats_period,
261 cycles_to_ns(loop_count ? exec / loop_count : 0),
262 cycles_to_ns(exec_min),
263 cycles_to_ns(exec_max),
265 cycles_to_ns(management), management * 100.0 / stats_period,
266 cycles_to_ns(loop_count ? management / loop_count : 0),
267 cycles_to_ns(management_min),
268 cycles_to_ns(management_max),
270 cycles_to_ns(busy), busy * 100.0 / stats_period,
271 cycles_to_ns(loop_count ? busy / loop_count : 0),
272 cycles_to_ns(busy_min),
273 cycles_to_ns(busy_max),
275 cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period,
276 cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0),
277 cycles_to_ns(idle_exec_min),
278 cycles_to_ns(idle_exec_max));
280 for (i = 0; i < qconf->n_rx_port; i++) {
281 job = &qconf->port_fwd_jobs[i];
282 printf("\n\nJob %" PRIu32 ": %-20s "
283 "\n%-18s %'14" PRIu64
287 "Exec count:", jobs_exec_cnt[i],
288 "Exec period: ", cycles_to_ns(jobs_period[i]),
290 cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period,
291 cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i]
293 cycles_to_ns(jobs_exec_min[i]),
294 cycles_to_ns(jobs_exec_max[i]));
297 if (qconf->n_rx_port > 0) {
298 job = &qconf->flush_job;
299 printf("\n\nJob %" PRIu32 ": %-20s "
300 "\n%-18s %'14" PRIu64
304 "Exec count:", flush_exec_cnt,
305 "Exec period: ", cycles_to_ns(flush_period),
307 cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period,
308 cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0),
309 cycles_to_ns(flush_exec_min),
310 cycles_to_ns(flush_exec_max));
314 /* Print out statistics on packets dropped */
316 show_stats_cb(__rte_unused void *param)
318 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
319 unsigned portid, lcore_id;
321 total_packets_dropped = 0;
322 total_packets_tx = 0;
323 total_packets_rx = 0;
325 const char clr[] = { 27, '[', '2', 'J', '\0' };
326 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
328 /* Clear screen and move to top left */
330 "\nPort statistics ===================================",
333 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
334 /* skip disabled ports */
335 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
337 printf("\nStatistics for port %u ------------------------------"
338 "\nPackets sent: %24"PRIu64
339 "\nPackets received: %20"PRIu64
340 "\nPackets dropped: %21"PRIu64,
342 port_statistics[portid].tx,
343 port_statistics[portid].rx,
344 port_statistics[portid].dropped);
346 total_packets_dropped += port_statistics[portid].dropped;
347 total_packets_tx += port_statistics[portid].tx;
348 total_packets_rx += port_statistics[portid].rx;
351 printf("\nAggregate statistics ==============================="
352 "\nTotal packets sent: %18"PRIu64
353 "\nTotal packets received: %14"PRIu64
354 "\nTotal packets dropped: %15"PRIu64
355 "\n====================================================",
358 total_packets_dropped);
360 RTE_LCORE_FOREACH(lcore_id) {
361 if (lcore_queue_conf[lcore_id].n_rx_port > 0)
362 show_lcore_stats(lcore_id);
365 printf("\n====================================================\n");
366 rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
370 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
372 struct ether_hdr *eth;
376 struct rte_eth_dev_tx_buffer *buffer;
378 dst_port = l2fwd_dst_ports[portid];
379 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
381 /* 02:00:00:00:00:xx */
382 tmp = ð->d_addr.addr_bytes[0];
383 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
386 ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr);
388 buffer = tx_buffer[dst_port];
389 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
391 port_statistics[dst_port].tx += sent;
395 l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result)
397 int64_t err = job->target - result;
398 int64_t histeresis = job->target / 8;
400 if (err < -histeresis) {
401 if (job->min_period + UPDATE_STEP_DOWN < job->period)
402 job->period -= UPDATE_STEP_DOWN;
403 } else if (err > histeresis) {
404 if (job->period + UPDATE_STEP_UP < job->max_period)
405 job->period += UPDATE_STEP_UP;
410 l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg)
412 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
415 const uint16_t port_idx = (uintptr_t) arg;
416 const unsigned lcore_id = rte_lcore_id();
417 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
418 struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx];
419 const uint16_t portid = qconf->rx_port_list[port_idx];
422 uint16_t total_nb_rx;
424 rte_jobstats_start(&qconf->jobs_context, job);
426 /* Call rx burst 2 times. This allow rte_jobstats logic to see if this
427 * function must be called more frequently. */
429 total_nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
432 for (j = 0; j < total_nb_rx; j++) {
434 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
435 l2fwd_simple_forward(m, portid);
438 if (total_nb_rx == MAX_PKT_BURST) {
439 const uint16_t nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
442 total_nb_rx += nb_rx;
443 for (j = 0; j < nb_rx; j++) {
445 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
446 l2fwd_simple_forward(m, portid);
450 port_statistics[portid].rx += total_nb_rx;
452 /* Adjust period time in which we are running here. */
453 if (rte_jobstats_finish(job, total_nb_rx) != 0) {
454 rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL,
455 lcore_id, l2fwd_fwd_job, arg);
460 l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
464 struct lcore_queue_conf *qconf;
468 struct rte_eth_dev_tx_buffer *buffer;
470 lcore_id = rte_lcore_id();
471 qconf = &lcore_queue_conf[lcore_id];
473 rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job);
475 now = rte_get_timer_cycles();
476 lcore_id = rte_lcore_id();
477 qconf = &lcore_queue_conf[lcore_id];
479 for (i = 0; i < qconf->n_rx_port; i++) {
480 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
482 if (qconf->next_flush_time[portid] <= now)
485 buffer = tx_buffer[portid];
486 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
488 port_statistics[portid].tx += sent;
490 qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc;
493 /* Pass target to indicate that this job is happy of time interwal
494 * in which it was called. */
495 rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target);
498 /* main processing loop */
500 l2fwd_main_loop(void)
504 struct lcore_queue_conf *qconf;
505 uint8_t stats_read_pending = 0;
508 lcore_id = rte_lcore_id();
509 qconf = &lcore_queue_conf[lcore_id];
511 if (qconf->n_rx_port == 0) {
512 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
516 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
518 for (i = 0; i < qconf->n_rx_port; i++) {
520 portid = qconf->rx_port_list[i];
521 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
525 rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0);
528 rte_spinlock_lock(&qconf->lock);
531 rte_jobstats_context_start(&qconf->jobs_context);
534 * - Read stats_read_pending flag
535 * - check if some real job need to be executed
537 rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job);
539 uint64_t repeats = 0;
543 uint64_t now = rte_get_timer_cycles();
546 need_manage = qconf->flush_timer.expire < now;
547 /* Check if we was esked to give a stats. */
549 rte_atomic16_read(&qconf->stats_read_pending);
550 need_manage |= stats_read_pending;
552 for (i = 0; i < qconf->n_rx_port && !need_manage; i++)
553 need_manage = qconf->rx_timers[i].expire < now;
555 } while (!need_manage);
557 if (likely(repeats != 1))
558 rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target);
560 rte_jobstats_abort(&qconf->idle_job);
563 rte_jobstats_context_finish(&qconf->jobs_context);
564 } while (likely(stats_read_pending == 0));
566 rte_spinlock_unlock(&qconf->lock);
572 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
580 l2fwd_usage(const char *prgname)
582 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
583 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
584 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
585 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n"
586 " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.",
591 l2fwd_parse_portmask(const char *portmask)
596 /* parse hexadecimal string */
597 pm = strtoul(portmask, &end, 16);
598 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
608 l2fwd_parse_nqueue(const char *q_arg)
613 /* parse hexadecimal string */
614 n = strtoul(q_arg, &end, 10);
615 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
619 if (n >= MAX_RX_QUEUE_PER_LCORE)
626 l2fwd_parse_timer_period(const char *q_arg)
631 /* parse number string */
632 n = strtol(q_arg, &end, 10);
633 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
635 if (n >= MAX_TIMER_PERIOD)
641 /* Parse the argument given in the command line of the application */
643 l2fwd_parse_args(int argc, char **argv)
648 char *prgname = argv[0];
649 static struct option lgopts[] = {
655 while ((opt = getopt_long(argc, argvopt, "p:q:T:l",
656 lgopts, &option_index)) != EOF) {
661 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
662 if (l2fwd_enabled_port_mask == 0) {
663 printf("invalid portmask\n");
664 l2fwd_usage(prgname);
671 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
672 if (l2fwd_rx_queue_per_lcore == 0) {
673 printf("invalid queue number\n");
674 l2fwd_usage(prgname);
681 timer_period = l2fwd_parse_timer_period(optarg);
682 if (timer_period < 0) {
683 printf("invalid timer period\n");
684 l2fwd_usage(prgname);
689 /* For thousands separator in printf. */
691 setlocale(LC_ALL, "");
696 l2fwd_usage(prgname);
700 l2fwd_usage(prgname);
706 argv[optind-1] = prgname;
709 optind = 1; /* reset getopt lib */
713 /* Check the link status of all ports in up to 9s, and print them finally */
715 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
717 #define CHECK_INTERVAL 100 /* 100ms */
718 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
720 uint8_t count, all_ports_up, print_flag = 0;
721 struct rte_eth_link link;
723 printf("\nChecking link status");
725 for (count = 0; count <= MAX_CHECK_TIME; count++) {
727 for (portid = 0; portid < port_num; portid++) {
728 if ((port_mask & (1 << portid)) == 0)
730 memset(&link, 0, sizeof(link));
731 rte_eth_link_get_nowait(portid, &link);
732 /* print link status if flag set */
733 if (print_flag == 1) {
734 if (link.link_status)
736 "Port%d Link Up. Speed %u Mbps - %s\n",
737 portid, link.link_speed,
738 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
739 ("full-duplex") : ("half-duplex\n"));
741 printf("Port %d Link Down\n", portid);
744 /* clear all_ports_up flag if any link down */
745 if (link.link_status == ETH_LINK_DOWN) {
750 /* after finally printing all link status, get out */
754 if (all_ports_up == 0) {
757 rte_delay_ms(CHECK_INTERVAL);
760 /* set the print_flag if all ports up or timeout */
761 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
769 main(int argc, char **argv)
771 struct lcore_queue_conf *qconf;
772 struct rte_eth_dev_info dev_info;
773 unsigned lcore_id, rx_lcore_id;
774 unsigned nb_ports_in_mask = 0;
776 char name[RTE_JOBSTATS_NAMESIZE];
778 uint16_t nb_ports_available;
779 uint16_t portid, last_port;
783 ret = rte_eal_init(argc, argv);
785 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
789 /* parse application arguments (after the EAL ones) */
790 ret = l2fwd_parse_args(argc, argv);
792 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
794 rte_timer_subsystem_init();
796 /* fetch default timer frequency. */
797 hz = rte_get_timer_hz();
799 /* create the mbuf pool */
801 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
802 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
803 if (l2fwd_pktmbuf_pool == NULL)
804 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
806 nb_ports = rte_eth_dev_count();
808 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
810 /* reset l2fwd_dst_ports */
811 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
812 l2fwd_dst_ports[portid] = 0;
816 * Each logical core is assigned a dedicated TX queue on each port.
818 for (portid = 0; portid < nb_ports; portid++) {
819 /* skip ports that are not enabled */
820 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
823 if (nb_ports_in_mask % 2) {
824 l2fwd_dst_ports[portid] = last_port;
825 l2fwd_dst_ports[last_port] = portid;
831 rte_eth_dev_info_get(portid, &dev_info);
833 if (nb_ports_in_mask % 2) {
834 printf("Notice: odd number of ports in portmask.\n");
835 l2fwd_dst_ports[last_port] = last_port;
841 /* Initialize the port/queue configuration of each logical core */
842 for (portid = 0; portid < nb_ports; portid++) {
843 /* skip ports that are not enabled */
844 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
847 /* get the lcore_id for this port */
848 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
849 lcore_queue_conf[rx_lcore_id].n_rx_port ==
850 l2fwd_rx_queue_per_lcore) {
852 if (rx_lcore_id >= RTE_MAX_LCORE)
853 rte_exit(EXIT_FAILURE, "Not enough cores\n");
856 if (qconf != &lcore_queue_conf[rx_lcore_id])
857 /* Assigned a new logical core in the loop above. */
858 qconf = &lcore_queue_conf[rx_lcore_id];
860 qconf->rx_port_list[qconf->n_rx_port] = portid;
862 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid);
865 nb_ports_available = nb_ports;
867 /* Initialise each port */
868 for (portid = 0; portid < nb_ports; portid++) {
869 /* skip ports that are not enabled */
870 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
871 printf("Skipping disabled port %u\n", portid);
872 nb_ports_available--;
876 printf("Initializing port %u... ", portid);
878 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
880 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
883 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
886 rte_exit(EXIT_FAILURE,
887 "Cannot adjust number of descriptors: err=%d, port=%u\n",
890 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
892 /* init one RX queue */
894 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
895 rte_eth_dev_socket_id(portid),
899 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
902 /* init one TX queue on each port */
904 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
905 rte_eth_dev_socket_id(portid),
908 rte_exit(EXIT_FAILURE,
909 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
912 /* Initialize TX buffers */
913 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
914 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
915 rte_eth_dev_socket_id(portid));
916 if (tx_buffer[portid] == NULL)
917 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
920 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
922 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
923 rte_eth_tx_buffer_count_callback,
924 &port_statistics[portid].dropped);
926 rte_exit(EXIT_FAILURE,
927 "Cannot set error callback for tx buffer on port %u\n",
931 ret = rte_eth_dev_start(portid);
933 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
938 rte_eth_promiscuous_enable(portid);
940 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
942 l2fwd_ports_eth_addr[portid].addr_bytes[0],
943 l2fwd_ports_eth_addr[portid].addr_bytes[1],
944 l2fwd_ports_eth_addr[portid].addr_bytes[2],
945 l2fwd_ports_eth_addr[portid].addr_bytes[3],
946 l2fwd_ports_eth_addr[portid].addr_bytes[4],
947 l2fwd_ports_eth_addr[portid].addr_bytes[5]);
949 /* initialize port stats */
950 memset(&port_statistics, 0, sizeof(port_statistics));
953 if (!nb_ports_available) {
954 rte_exit(EXIT_FAILURE,
955 "All available ports are disabled. Please set portmask.\n");
958 check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
960 drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
962 RTE_LCORE_FOREACH(lcore_id) {
963 qconf = &lcore_queue_conf[lcore_id];
965 rte_spinlock_init(&qconf->lock);
967 if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
968 rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
970 if (qconf->n_rx_port == 0) {
972 "lcore %u: no ports so no jobs stats context initialization\n",
977 * Set fixed period by setting min = max = initial period. Set target to
978 * zero as it is irrelevant for this job. */
979 rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc,
982 rte_timer_init(&qconf->flush_timer);
983 ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL,
984 lcore_id, &l2fwd_flush_job, NULL);
987 rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
988 lcore_id, rte_strerror(-ret));
991 for (i = 0; i < qconf->n_rx_port; i++) {
992 struct rte_jobstats *job = &qconf->port_fwd_jobs[i];
994 portid = qconf->rx_port_list[i];
995 printf("Setting forward job for port %u\n", portid);
997 snprintf(name, RTE_DIM(name), "port %u fwd", portid);
998 /* Setup forward job.
999 * Set min, max and initial period. Set target to MAX_PKT_BURST as
1000 * this is desired optimal RX/TX burst size. */
1001 rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST);
1002 rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb);
1004 rte_timer_init(&qconf->rx_timers[i]);
1005 ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id,
1006 &l2fwd_fwd_job, (void *)(uintptr_t)i);
1009 rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
1010 lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
1016 rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL);
1018 RTE_LOG(INFO, L2FWD, "Stats display disabled\n");
1020 /* launch per-lcore init on every lcore */
1021 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);
1022 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1023 if (rte_eal_wait_lcore(lcore_id) < 0)