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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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>
56 #include <rte_debug.h>
57 #include <rte_ether.h>
58 #include <rte_ethdev.h>
59 #include <rte_mempool.h>
61 #include <rte_spinlock.h>
63 #include <rte_errno.h>
64 #include <rte_jobstats.h>
65 #include <rte_timer.h>
66 #include <rte_alarm.h>
67 #include <rte_pause.h>
69 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
73 #define MAX_PKT_BURST 32
74 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
77 * Configurable number of RX/TX ring descriptors
79 #define RTE_TEST_RX_DESC_DEFAULT 128
80 #define RTE_TEST_TX_DESC_DEFAULT 512
81 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
82 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
84 /* ethernet addresses of ports */
85 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
87 /* mask of enabled ports */
88 static uint32_t l2fwd_enabled_port_mask;
90 /* list of enabled ports */
91 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
93 #define UPDATE_STEP_UP 1
94 #define UPDATE_STEP_DOWN 32
96 static unsigned int l2fwd_rx_queue_per_lcore = 1;
98 #define MAX_RX_QUEUE_PER_LCORE 16
99 #define MAX_TX_QUEUE_PER_PORT 16
100 struct lcore_queue_conf {
102 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
103 uint64_t next_flush_time[RTE_MAX_ETHPORTS];
105 struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE];
106 struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE];
108 struct rte_timer flush_timer;
109 struct rte_jobstats flush_job;
110 struct rte_jobstats idle_job;
111 struct rte_jobstats_context jobs_context;
113 rte_atomic16_t stats_read_pending;
115 } __rte_cache_aligned;
116 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
118 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
120 static const struct rte_eth_conf port_conf = {
123 .header_split = 0, /**< Header Split disabled */
124 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
125 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
126 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
127 .hw_strip_crc = 1, /**< CRC stripped by hardware */
130 .mq_mode = ETH_MQ_TX_NONE,
134 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
136 /* Per-port statistics struct */
137 struct l2fwd_port_statistics {
141 } __rte_cache_aligned;
142 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
145 #define MAX_TIMER_PERIOD 86400
146 /* default period is 10 seconds */
147 static int64_t timer_period = 10;
148 /* default timer frequency */
150 /* BURST_TX_DRAIN_US converted to cycles */
152 /* Convert cycles to ns */
154 cycles_to_ns(uint64_t cycles)
158 t *= (double)NS_PER_S;
164 show_lcore_stats(unsigned lcore_id)
166 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
167 struct rte_jobstats_context *ctx = &qconf->jobs_context;
168 struct rte_jobstats *job;
171 /* LCore statistics. */
172 uint64_t stats_period, loop_count;
173 uint64_t exec, exec_min, exec_max;
174 uint64_t management, management_min, management_max;
175 uint64_t busy, busy_min, busy_max;
177 /* Jobs statistics. */
178 const uint16_t port_cnt = qconf->n_rx_port;
179 uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt];
180 uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt],
181 jobs_exec_max[port_cnt];
183 uint64_t flush_exec_cnt, flush_period;
184 uint64_t flush_exec, flush_exec_min, flush_exec_max;
186 uint64_t idle_exec_cnt;
187 uint64_t idle_exec, idle_exec_min, idle_exec_max;
188 uint64_t collection_time = rte_get_timer_cycles();
190 /* Ask forwarding thread to give us stats. */
191 rte_atomic16_set(&qconf->stats_read_pending, 1);
192 rte_spinlock_lock(&qconf->lock);
193 rte_atomic16_set(&qconf->stats_read_pending, 0);
195 /* Collect context statistics. */
196 stats_period = ctx->state_time - ctx->start_time;
197 loop_count = ctx->loop_cnt;
199 exec = ctx->exec_time;
200 exec_min = ctx->min_exec_time;
201 exec_max = ctx->max_exec_time;
203 management = ctx->management_time;
204 management_min = ctx->min_management_time;
205 management_max = ctx->max_management_time;
207 rte_jobstats_context_reset(ctx);
209 for (i = 0; i < port_cnt; i++) {
210 job = &qconf->port_fwd_jobs[i];
212 jobs_exec_cnt[i] = job->exec_cnt;
213 jobs_period[i] = job->period;
215 jobs_exec[i] = job->exec_time;
216 jobs_exec_min[i] = job->min_exec_time;
217 jobs_exec_max[i] = job->max_exec_time;
219 rte_jobstats_reset(job);
222 flush_exec_cnt = qconf->flush_job.exec_cnt;
223 flush_period = qconf->flush_job.period;
224 flush_exec = qconf->flush_job.exec_time;
225 flush_exec_min = qconf->flush_job.min_exec_time;
226 flush_exec_max = qconf->flush_job.max_exec_time;
227 rte_jobstats_reset(&qconf->flush_job);
229 idle_exec_cnt = qconf->idle_job.exec_cnt;
230 idle_exec = qconf->idle_job.exec_time;
231 idle_exec_min = qconf->idle_job.min_exec_time;
232 idle_exec_max = qconf->idle_job.max_exec_time;
233 rte_jobstats_reset(&qconf->idle_job);
235 rte_spinlock_unlock(&qconf->lock);
238 busy = exec + management;
239 busy_min = exec_min + management_min;
240 busy_max = exec_max + management_max;
243 collection_time = rte_get_timer_cycles() - collection_time;
245 #define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f"
247 printf("\n----------------"
248 "\nLCore %3u: statistics (time in ns, collected in %'9.0f)"
249 "\n%-18s %14s %7s %10s %10s %10s "
251 "\n%-18s %'14" PRIu64
253 STAT_FMT /* Management */
256 lcore_id, cycles_to_ns(collection_time),
257 "Stat type", "total", "%total", "avg", "min", "max",
258 "Stats duration:", cycles_to_ns(stats_period),
259 "Loop count:", loop_count,
261 cycles_to_ns(exec), exec * 100.0 / stats_period,
262 cycles_to_ns(loop_count ? exec / loop_count : 0),
263 cycles_to_ns(exec_min),
264 cycles_to_ns(exec_max),
266 cycles_to_ns(management), management * 100.0 / stats_period,
267 cycles_to_ns(loop_count ? management / loop_count : 0),
268 cycles_to_ns(management_min),
269 cycles_to_ns(management_max),
271 cycles_to_ns(busy), busy * 100.0 / stats_period,
272 cycles_to_ns(loop_count ? busy / loop_count : 0),
273 cycles_to_ns(busy_min),
274 cycles_to_ns(busy_max),
276 cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period,
277 cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0),
278 cycles_to_ns(idle_exec_min),
279 cycles_to_ns(idle_exec_max));
281 for (i = 0; i < qconf->n_rx_port; i++) {
282 job = &qconf->port_fwd_jobs[i];
283 printf("\n\nJob %" PRIu32 ": %-20s "
284 "\n%-18s %'14" PRIu64
288 "Exec count:", jobs_exec_cnt[i],
289 "Exec period: ", cycles_to_ns(jobs_period[i]),
291 cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period,
292 cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i]
294 cycles_to_ns(jobs_exec_min[i]),
295 cycles_to_ns(jobs_exec_max[i]));
298 if (qconf->n_rx_port > 0) {
299 job = &qconf->flush_job;
300 printf("\n\nJob %" PRIu32 ": %-20s "
301 "\n%-18s %'14" PRIu64
305 "Exec count:", flush_exec_cnt,
306 "Exec period: ", cycles_to_ns(flush_period),
308 cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period,
309 cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0),
310 cycles_to_ns(flush_exec_min),
311 cycles_to_ns(flush_exec_max));
315 /* Print out statistics on packets dropped */
317 show_stats_cb(__rte_unused void *param)
319 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
320 unsigned portid, lcore_id;
322 total_packets_dropped = 0;
323 total_packets_tx = 0;
324 total_packets_rx = 0;
326 const char clr[] = { 27, '[', '2', 'J', '\0' };
327 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
329 /* Clear screen and move to top left */
331 "\nPort statistics ===================================",
334 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
335 /* skip disabled ports */
336 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
338 printf("\nStatistics for port %u ------------------------------"
339 "\nPackets sent: %24"PRIu64
340 "\nPackets received: %20"PRIu64
341 "\nPackets dropped: %21"PRIu64,
343 port_statistics[portid].tx,
344 port_statistics[portid].rx,
345 port_statistics[portid].dropped);
347 total_packets_dropped += port_statistics[portid].dropped;
348 total_packets_tx += port_statistics[portid].tx;
349 total_packets_rx += port_statistics[portid].rx;
352 printf("\nAggregate statistics ==============================="
353 "\nTotal packets sent: %18"PRIu64
354 "\nTotal packets received: %14"PRIu64
355 "\nTotal packets dropped: %15"PRIu64
356 "\n====================================================",
359 total_packets_dropped);
361 RTE_LCORE_FOREACH(lcore_id) {
362 if (lcore_queue_conf[lcore_id].n_rx_port > 0)
363 show_lcore_stats(lcore_id);
366 printf("\n====================================================\n");
367 rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
371 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
373 struct ether_hdr *eth;
377 struct rte_eth_dev_tx_buffer *buffer;
379 dst_port = l2fwd_dst_ports[portid];
380 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
382 /* 02:00:00:00:00:xx */
383 tmp = ð->d_addr.addr_bytes[0];
384 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
387 ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr);
389 buffer = tx_buffer[dst_port];
390 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
392 port_statistics[dst_port].tx += sent;
396 l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result)
398 int64_t err = job->target - result;
399 int64_t histeresis = job->target / 8;
401 if (err < -histeresis) {
402 if (job->min_period + UPDATE_STEP_DOWN < job->period)
403 job->period -= UPDATE_STEP_DOWN;
404 } else if (err > histeresis) {
405 if (job->period + UPDATE_STEP_UP < job->max_period)
406 job->period += UPDATE_STEP_UP;
411 l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg)
413 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
416 const uint16_t port_idx = (uintptr_t) arg;
417 const unsigned lcore_id = rte_lcore_id();
418 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
419 struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx];
420 const uint16_t portid = qconf->rx_port_list[port_idx];
423 uint16_t total_nb_rx;
425 rte_jobstats_start(&qconf->jobs_context, job);
427 /* Call rx burst 2 times. This allow rte_jobstats logic to see if this
428 * function must be called more frequently. */
430 total_nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
433 for (j = 0; j < total_nb_rx; j++) {
435 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
436 l2fwd_simple_forward(m, portid);
439 if (total_nb_rx == MAX_PKT_BURST) {
440 const uint16_t nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
443 total_nb_rx += nb_rx;
444 for (j = 0; j < nb_rx; j++) {
446 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
447 l2fwd_simple_forward(m, portid);
451 port_statistics[portid].rx += total_nb_rx;
453 /* Adjust period time in which we are running here. */
454 if (rte_jobstats_finish(job, total_nb_rx) != 0) {
455 rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL,
456 lcore_id, l2fwd_fwd_job, arg);
461 l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
465 struct lcore_queue_conf *qconf;
469 struct rte_eth_dev_tx_buffer *buffer;
471 lcore_id = rte_lcore_id();
472 qconf = &lcore_queue_conf[lcore_id];
474 rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job);
476 now = rte_get_timer_cycles();
477 lcore_id = rte_lcore_id();
478 qconf = &lcore_queue_conf[lcore_id];
480 for (i = 0; i < qconf->n_rx_port; i++) {
481 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
483 if (qconf->next_flush_time[portid] <= now)
486 buffer = tx_buffer[portid];
487 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
489 port_statistics[portid].tx += sent;
491 qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc;
494 /* Pass target to indicate that this job is happy of time interwal
495 * in which it was called. */
496 rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target);
499 /* main processing loop */
501 l2fwd_main_loop(void)
505 struct lcore_queue_conf *qconf;
506 uint8_t stats_read_pending = 0;
509 lcore_id = rte_lcore_id();
510 qconf = &lcore_queue_conf[lcore_id];
512 if (qconf->n_rx_port == 0) {
513 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
517 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
519 for (i = 0; i < qconf->n_rx_port; i++) {
521 portid = qconf->rx_port_list[i];
522 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
526 rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0);
529 rte_spinlock_lock(&qconf->lock);
532 rte_jobstats_context_start(&qconf->jobs_context);
535 * - Read stats_read_pending flag
536 * - check if some real job need to be executed
538 rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job);
540 uint64_t repeats = 0;
544 uint64_t now = rte_get_timer_cycles();
547 need_manage = qconf->flush_timer.expire < now;
548 /* Check if we was esked to give a stats. */
550 rte_atomic16_read(&qconf->stats_read_pending);
551 need_manage |= stats_read_pending;
553 for (i = 0; i < qconf->n_rx_port && !need_manage; i++)
554 need_manage = qconf->rx_timers[i].expire < now;
556 } while (!need_manage);
558 if (likely(repeats != 1))
559 rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target);
561 rte_jobstats_abort(&qconf->idle_job);
564 rte_jobstats_context_finish(&qconf->jobs_context);
565 } while (likely(stats_read_pending == 0));
567 rte_spinlock_unlock(&qconf->lock);
573 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
581 l2fwd_usage(const char *prgname)
583 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
584 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
585 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
586 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n"
587 " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.",
592 l2fwd_parse_portmask(const char *portmask)
597 /* parse hexadecimal string */
598 pm = strtoul(portmask, &end, 16);
599 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
609 l2fwd_parse_nqueue(const char *q_arg)
614 /* parse hexadecimal string */
615 n = strtoul(q_arg, &end, 10);
616 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
620 if (n >= MAX_RX_QUEUE_PER_LCORE)
627 l2fwd_parse_timer_period(const char *q_arg)
632 /* parse number string */
633 n = strtol(q_arg, &end, 10);
634 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
636 if (n >= MAX_TIMER_PERIOD)
642 /* Parse the argument given in the command line of the application */
644 l2fwd_parse_args(int argc, char **argv)
649 char *prgname = argv[0];
650 static struct option lgopts[] = {
656 while ((opt = getopt_long(argc, argvopt, "p:q:T:l",
657 lgopts, &option_index)) != EOF) {
662 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
663 if (l2fwd_enabled_port_mask == 0) {
664 printf("invalid portmask\n");
665 l2fwd_usage(prgname);
672 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
673 if (l2fwd_rx_queue_per_lcore == 0) {
674 printf("invalid queue number\n");
675 l2fwd_usage(prgname);
682 timer_period = l2fwd_parse_timer_period(optarg);
683 if (timer_period < 0) {
684 printf("invalid timer period\n");
685 l2fwd_usage(prgname);
690 /* For thousands separator in printf. */
692 setlocale(LC_ALL, "");
697 l2fwd_usage(prgname);
701 l2fwd_usage(prgname);
707 argv[optind-1] = prgname;
710 optind = 1; /* reset getopt lib */
714 /* Check the link status of all ports in up to 9s, and print them finally */
716 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
718 #define CHECK_INTERVAL 100 /* 100ms */
719 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
721 uint8_t count, all_ports_up, print_flag = 0;
722 struct rte_eth_link link;
724 printf("\nChecking link status");
726 for (count = 0; count <= MAX_CHECK_TIME; count++) {
728 for (portid = 0; portid < port_num; portid++) {
729 if ((port_mask & (1 << portid)) == 0)
731 memset(&link, 0, sizeof(link));
732 rte_eth_link_get_nowait(portid, &link);
733 /* print link status if flag set */
734 if (print_flag == 1) {
735 if (link.link_status)
737 "Port%d Link Up. Speed %u Mbps - %s\n",
738 portid, link.link_speed,
739 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
740 ("full-duplex") : ("half-duplex\n"));
742 printf("Port %d Link Down\n", portid);
745 /* clear all_ports_up flag if any link down */
746 if (link.link_status == ETH_LINK_DOWN) {
751 /* after finally printing all link status, get out */
755 if (all_ports_up == 0) {
758 rte_delay_ms(CHECK_INTERVAL);
761 /* set the print_flag if all ports up or timeout */
762 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
770 main(int argc, char **argv)
772 struct lcore_queue_conf *qconf;
773 struct rte_eth_dev_info dev_info;
774 unsigned lcore_id, rx_lcore_id;
775 unsigned nb_ports_in_mask = 0;
777 char name[RTE_JOBSTATS_NAMESIZE];
779 uint16_t nb_ports_available;
780 uint16_t portid, last_port;
784 ret = rte_eal_init(argc, argv);
786 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
790 /* parse application arguments (after the EAL ones) */
791 ret = l2fwd_parse_args(argc, argv);
793 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
795 rte_timer_subsystem_init();
797 /* fetch default timer frequency. */
798 hz = rte_get_timer_hz();
800 /* create the mbuf pool */
802 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
803 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
804 if (l2fwd_pktmbuf_pool == NULL)
805 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
807 nb_ports = rte_eth_dev_count();
809 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
811 /* reset l2fwd_dst_ports */
812 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
813 l2fwd_dst_ports[portid] = 0;
817 * Each logical core is assigned a dedicated TX queue on each port.
819 for (portid = 0; portid < nb_ports; portid++) {
820 /* skip ports that are not enabled */
821 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
824 if (nb_ports_in_mask % 2) {
825 l2fwd_dst_ports[portid] = last_port;
826 l2fwd_dst_ports[last_port] = portid;
832 rte_eth_dev_info_get(portid, &dev_info);
834 if (nb_ports_in_mask % 2) {
835 printf("Notice: odd number of ports in portmask.\n");
836 l2fwd_dst_ports[last_port] = last_port;
842 /* Initialize the port/queue configuration of each logical core */
843 for (portid = 0; portid < nb_ports; portid++) {
844 /* skip ports that are not enabled */
845 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
848 /* get the lcore_id for this port */
849 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
850 lcore_queue_conf[rx_lcore_id].n_rx_port ==
851 l2fwd_rx_queue_per_lcore) {
853 if (rx_lcore_id >= RTE_MAX_LCORE)
854 rte_exit(EXIT_FAILURE, "Not enough cores\n");
857 if (qconf != &lcore_queue_conf[rx_lcore_id])
858 /* Assigned a new logical core in the loop above. */
859 qconf = &lcore_queue_conf[rx_lcore_id];
861 qconf->rx_port_list[qconf->n_rx_port] = portid;
863 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid);
866 nb_ports_available = nb_ports;
868 /* Initialise each port */
869 for (portid = 0; portid < nb_ports; portid++) {
870 /* skip ports that are not enabled */
871 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
872 printf("Skipping disabled port %u\n", portid);
873 nb_ports_available--;
877 printf("Initializing port %u... ", portid);
879 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
881 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
884 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
887 rte_exit(EXIT_FAILURE,
888 "Cannot adjust number of descriptors: err=%d, port=%u\n",
891 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
893 /* init one RX queue */
895 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
896 rte_eth_dev_socket_id(portid),
900 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
903 /* init one TX queue on each port */
905 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
906 rte_eth_dev_socket_id(portid),
909 rte_exit(EXIT_FAILURE,
910 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
913 /* Initialize TX buffers */
914 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
915 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
916 rte_eth_dev_socket_id(portid));
917 if (tx_buffer[portid] == NULL)
918 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
921 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
923 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
924 rte_eth_tx_buffer_count_callback,
925 &port_statistics[portid].dropped);
927 rte_exit(EXIT_FAILURE,
928 "Cannot set error callback for tx buffer on port %u\n",
932 ret = rte_eth_dev_start(portid);
934 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
939 rte_eth_promiscuous_enable(portid);
941 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
943 l2fwd_ports_eth_addr[portid].addr_bytes[0],
944 l2fwd_ports_eth_addr[portid].addr_bytes[1],
945 l2fwd_ports_eth_addr[portid].addr_bytes[2],
946 l2fwd_ports_eth_addr[portid].addr_bytes[3],
947 l2fwd_ports_eth_addr[portid].addr_bytes[4],
948 l2fwd_ports_eth_addr[portid].addr_bytes[5]);
950 /* initialize port stats */
951 memset(&port_statistics, 0, sizeof(port_statistics));
954 if (!nb_ports_available) {
955 rte_exit(EXIT_FAILURE,
956 "All available ports are disabled. Please set portmask.\n");
959 check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
961 drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
963 RTE_LCORE_FOREACH(lcore_id) {
964 qconf = &lcore_queue_conf[lcore_id];
966 rte_spinlock_init(&qconf->lock);
968 if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
969 rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
971 if (qconf->n_rx_port == 0) {
973 "lcore %u: no ports so no jobs stats context initialization\n",
978 * Set fixed period by setting min = max = initial period. Set target to
979 * zero as it is irrelevant for this job. */
980 rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc,
983 rte_timer_init(&qconf->flush_timer);
984 ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL,
985 lcore_id, &l2fwd_flush_job, NULL);
988 rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
989 lcore_id, rte_strerror(-ret));
992 for (i = 0; i < qconf->n_rx_port; i++) {
993 struct rte_jobstats *job = &qconf->port_fwd_jobs[i];
995 portid = qconf->rx_port_list[i];
996 printf("Setting forward job for port %u\n", portid);
998 snprintf(name, RTE_DIM(name), "port %u fwd", portid);
999 /* Setup forward job.
1000 * Set min, max and initial period. Set target to MAX_PKT_BURST as
1001 * this is desired optimal RX/TX burst size. */
1002 rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST);
1003 rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb);
1005 rte_timer_init(&qconf->rx_timers[i]);
1006 ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id,
1007 &l2fwd_fwd_job, (void *)(uintptr_t)i);
1010 rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
1011 lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
1017 rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL);
1019 RTE_LOG(INFO, L2FWD, "Stats display disabled\n");
1021 /* launch per-lcore init on every lcore */
1022 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);
1023 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1024 if (rte_eal_wait_lcore(lcore_id) < 0)