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 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 struct lcore_queue_conf {
72 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
73 uint64_t next_flush_time[RTE_MAX_ETHPORTS];
75 struct rte_timer rx_timers[MAX_RX_QUEUE_PER_LCORE];
76 struct rte_jobstats port_fwd_jobs[MAX_RX_QUEUE_PER_LCORE];
78 struct rte_timer flush_timer;
79 struct rte_jobstats flush_job;
80 struct rte_jobstats idle_job;
81 struct rte_jobstats_context jobs_context;
83 rte_atomic16_t stats_read_pending;
85 } __rte_cache_aligned;
86 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
88 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
90 static struct rte_eth_conf port_conf = {
93 .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
96 .mq_mode = ETH_MQ_TX_NONE,
100 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
102 /* Per-port statistics struct */
103 struct l2fwd_port_statistics {
107 } __rte_cache_aligned;
108 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
111 #define MAX_TIMER_PERIOD 86400
112 /* default period is 10 seconds */
113 static int64_t timer_period = 10;
114 /* default timer frequency */
116 /* BURST_TX_DRAIN_US converted to cycles */
118 /* Convert cycles to ns */
120 cycles_to_ns(uint64_t cycles)
124 t *= (double)NS_PER_S;
130 show_lcore_stats(unsigned lcore_id)
132 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
133 struct rte_jobstats_context *ctx = &qconf->jobs_context;
134 struct rte_jobstats *job;
137 /* LCore statistics. */
138 uint64_t stats_period, loop_count;
139 uint64_t exec, exec_min, exec_max;
140 uint64_t management, management_min, management_max;
141 uint64_t busy, busy_min, busy_max;
143 /* Jobs statistics. */
144 const uint16_t port_cnt = qconf->n_rx_port;
145 uint64_t jobs_exec_cnt[port_cnt], jobs_period[port_cnt];
146 uint64_t jobs_exec[port_cnt], jobs_exec_min[port_cnt],
147 jobs_exec_max[port_cnt];
149 uint64_t flush_exec_cnt, flush_period;
150 uint64_t flush_exec, flush_exec_min, flush_exec_max;
152 uint64_t idle_exec_cnt;
153 uint64_t idle_exec, idle_exec_min, idle_exec_max;
154 uint64_t collection_time = rte_get_timer_cycles();
156 /* Ask forwarding thread to give us stats. */
157 rte_atomic16_set(&qconf->stats_read_pending, 1);
158 rte_spinlock_lock(&qconf->lock);
159 rte_atomic16_set(&qconf->stats_read_pending, 0);
161 /* Collect context statistics. */
162 stats_period = ctx->state_time - ctx->start_time;
163 loop_count = ctx->loop_cnt;
165 exec = ctx->exec_time;
166 exec_min = ctx->min_exec_time;
167 exec_max = ctx->max_exec_time;
169 management = ctx->management_time;
170 management_min = ctx->min_management_time;
171 management_max = ctx->max_management_time;
173 rte_jobstats_context_reset(ctx);
175 for (i = 0; i < port_cnt; i++) {
176 job = &qconf->port_fwd_jobs[i];
178 jobs_exec_cnt[i] = job->exec_cnt;
179 jobs_period[i] = job->period;
181 jobs_exec[i] = job->exec_time;
182 jobs_exec_min[i] = job->min_exec_time;
183 jobs_exec_max[i] = job->max_exec_time;
185 rte_jobstats_reset(job);
188 flush_exec_cnt = qconf->flush_job.exec_cnt;
189 flush_period = qconf->flush_job.period;
190 flush_exec = qconf->flush_job.exec_time;
191 flush_exec_min = qconf->flush_job.min_exec_time;
192 flush_exec_max = qconf->flush_job.max_exec_time;
193 rte_jobstats_reset(&qconf->flush_job);
195 idle_exec_cnt = qconf->idle_job.exec_cnt;
196 idle_exec = qconf->idle_job.exec_time;
197 idle_exec_min = qconf->idle_job.min_exec_time;
198 idle_exec_max = qconf->idle_job.max_exec_time;
199 rte_jobstats_reset(&qconf->idle_job);
201 rte_spinlock_unlock(&qconf->lock);
204 busy = exec + management;
205 busy_min = exec_min + management_min;
206 busy_max = exec_max + management_max;
209 collection_time = rte_get_timer_cycles() - collection_time;
211 #define STAT_FMT "\n%-18s %'14.0f %6.1f%% %'10.0f %'10.0f %'10.0f"
213 printf("\n----------------"
214 "\nLCore %3u: statistics (time in ns, collected in %'9.0f)"
215 "\n%-18s %14s %7s %10s %10s %10s "
217 "\n%-18s %'14" PRIu64
219 STAT_FMT /* Management */
222 lcore_id, cycles_to_ns(collection_time),
223 "Stat type", "total", "%total", "avg", "min", "max",
224 "Stats duration:", cycles_to_ns(stats_period),
225 "Loop count:", loop_count,
227 cycles_to_ns(exec), exec * 100.0 / stats_period,
228 cycles_to_ns(loop_count ? exec / loop_count : 0),
229 cycles_to_ns(exec_min),
230 cycles_to_ns(exec_max),
232 cycles_to_ns(management), management * 100.0 / stats_period,
233 cycles_to_ns(loop_count ? management / loop_count : 0),
234 cycles_to_ns(management_min),
235 cycles_to_ns(management_max),
237 cycles_to_ns(busy), busy * 100.0 / stats_period,
238 cycles_to_ns(loop_count ? busy / loop_count : 0),
239 cycles_to_ns(busy_min),
240 cycles_to_ns(busy_max),
242 cycles_to_ns(idle_exec), idle_exec * 100.0 / stats_period,
243 cycles_to_ns(idle_exec_cnt ? idle_exec / idle_exec_cnt : 0),
244 cycles_to_ns(idle_exec_min),
245 cycles_to_ns(idle_exec_max));
247 for (i = 0; i < qconf->n_rx_port; i++) {
248 job = &qconf->port_fwd_jobs[i];
249 printf("\n\nJob %" PRIu32 ": %-20s "
250 "\n%-18s %'14" PRIu64
254 "Exec count:", jobs_exec_cnt[i],
255 "Exec period: ", cycles_to_ns(jobs_period[i]),
257 cycles_to_ns(jobs_exec[i]), jobs_exec[i] * 100.0 / stats_period,
258 cycles_to_ns(jobs_exec_cnt[i] ? jobs_exec[i] / jobs_exec_cnt[i]
260 cycles_to_ns(jobs_exec_min[i]),
261 cycles_to_ns(jobs_exec_max[i]));
264 if (qconf->n_rx_port > 0) {
265 job = &qconf->flush_job;
266 printf("\n\nJob %" PRIu32 ": %-20s "
267 "\n%-18s %'14" PRIu64
271 "Exec count:", flush_exec_cnt,
272 "Exec period: ", cycles_to_ns(flush_period),
274 cycles_to_ns(flush_exec), flush_exec * 100.0 / stats_period,
275 cycles_to_ns(flush_exec_cnt ? flush_exec / flush_exec_cnt : 0),
276 cycles_to_ns(flush_exec_min),
277 cycles_to_ns(flush_exec_max));
281 /* Print out statistics on packets dropped */
283 show_stats_cb(__rte_unused void *param)
285 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
286 unsigned portid, lcore_id;
288 total_packets_dropped = 0;
289 total_packets_tx = 0;
290 total_packets_rx = 0;
292 const char clr[] = { 27, '[', '2', 'J', '\0' };
293 const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
295 /* Clear screen and move to top left */
297 "\nPort statistics ===================================",
300 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
301 /* skip disabled ports */
302 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
304 printf("\nStatistics for port %u ------------------------------"
305 "\nPackets sent: %24"PRIu64
306 "\nPackets received: %20"PRIu64
307 "\nPackets dropped: %21"PRIu64,
309 port_statistics[portid].tx,
310 port_statistics[portid].rx,
311 port_statistics[portid].dropped);
313 total_packets_dropped += port_statistics[portid].dropped;
314 total_packets_tx += port_statistics[portid].tx;
315 total_packets_rx += port_statistics[portid].rx;
318 printf("\nAggregate statistics ==============================="
319 "\nTotal packets sent: %18"PRIu64
320 "\nTotal packets received: %14"PRIu64
321 "\nTotal packets dropped: %15"PRIu64
322 "\n====================================================",
325 total_packets_dropped);
327 RTE_LCORE_FOREACH(lcore_id) {
328 if (lcore_queue_conf[lcore_id].n_rx_port > 0)
329 show_lcore_stats(lcore_id);
332 printf("\n====================================================\n");
333 rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
337 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
339 struct ether_hdr *eth;
343 struct rte_eth_dev_tx_buffer *buffer;
345 dst_port = l2fwd_dst_ports[portid];
346 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
348 /* 02:00:00:00:00:xx */
349 tmp = ð->d_addr.addr_bytes[0];
350 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
353 ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr);
355 buffer = tx_buffer[dst_port];
356 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
358 port_statistics[dst_port].tx += sent;
362 l2fwd_job_update_cb(struct rte_jobstats *job, int64_t result)
364 int64_t err = job->target - result;
365 int64_t histeresis = job->target / 8;
367 if (err < -histeresis) {
368 if (job->min_period + UPDATE_STEP_DOWN < job->period)
369 job->period -= UPDATE_STEP_DOWN;
370 } else if (err > histeresis) {
371 if (job->period + UPDATE_STEP_UP < job->max_period)
372 job->period += UPDATE_STEP_UP;
377 l2fwd_fwd_job(__rte_unused struct rte_timer *timer, void *arg)
379 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
382 const uint16_t port_idx = (uintptr_t) arg;
383 const unsigned lcore_id = rte_lcore_id();
384 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
385 struct rte_jobstats *job = &qconf->port_fwd_jobs[port_idx];
386 const uint16_t portid = qconf->rx_port_list[port_idx];
389 uint16_t total_nb_rx;
391 rte_jobstats_start(&qconf->jobs_context, job);
393 /* Call rx burst 2 times. This allow rte_jobstats logic to see if this
394 * function must be called more frequently. */
396 total_nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
399 for (j = 0; j < total_nb_rx; j++) {
401 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
402 l2fwd_simple_forward(m, portid);
405 if (total_nb_rx == MAX_PKT_BURST) {
406 const uint16_t nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst,
409 total_nb_rx += nb_rx;
410 for (j = 0; j < nb_rx; j++) {
412 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
413 l2fwd_simple_forward(m, portid);
417 port_statistics[portid].rx += total_nb_rx;
419 /* Adjust period time in which we are running here. */
420 if (rte_jobstats_finish(job, total_nb_rx) != 0) {
421 rte_timer_reset(&qconf->rx_timers[port_idx], job->period, PERIODICAL,
422 lcore_id, l2fwd_fwd_job, arg);
427 l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
431 struct lcore_queue_conf *qconf;
435 struct rte_eth_dev_tx_buffer *buffer;
437 lcore_id = rte_lcore_id();
438 qconf = &lcore_queue_conf[lcore_id];
440 rte_jobstats_start(&qconf->jobs_context, &qconf->flush_job);
442 now = rte_get_timer_cycles();
443 lcore_id = rte_lcore_id();
444 qconf = &lcore_queue_conf[lcore_id];
446 for (i = 0; i < qconf->n_rx_port; i++) {
447 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
449 if (qconf->next_flush_time[portid] <= now)
452 buffer = tx_buffer[portid];
453 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
455 port_statistics[portid].tx += sent;
457 qconf->next_flush_time[portid] = rte_get_timer_cycles() + drain_tsc;
460 /* Pass target to indicate that this job is happy of time interwal
461 * in which it was called. */
462 rte_jobstats_finish(&qconf->flush_job, qconf->flush_job.target);
465 /* main processing loop */
467 l2fwd_main_loop(void)
471 struct lcore_queue_conf *qconf;
472 uint8_t stats_read_pending = 0;
475 lcore_id = rte_lcore_id();
476 qconf = &lcore_queue_conf[lcore_id];
478 if (qconf->n_rx_port == 0) {
479 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
483 RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
485 for (i = 0; i < qconf->n_rx_port; i++) {
487 portid = qconf->rx_port_list[i];
488 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
492 rte_jobstats_init(&qconf->idle_job, "idle", 0, 0, 0, 0);
495 rte_spinlock_lock(&qconf->lock);
498 rte_jobstats_context_start(&qconf->jobs_context);
501 * - Read stats_read_pending flag
502 * - check if some real job need to be executed
504 rte_jobstats_start(&qconf->jobs_context, &qconf->idle_job);
506 uint64_t repeats = 0;
510 uint64_t now = rte_get_timer_cycles();
513 need_manage = qconf->flush_timer.expire < now;
514 /* Check if we was esked to give a stats. */
516 rte_atomic16_read(&qconf->stats_read_pending);
517 need_manage |= stats_read_pending;
519 for (i = 0; i < qconf->n_rx_port && !need_manage; i++)
520 need_manage = qconf->rx_timers[i].expire < now;
522 } while (!need_manage);
524 if (likely(repeats != 1))
525 rte_jobstats_finish(&qconf->idle_job, qconf->idle_job.target);
527 rte_jobstats_abort(&qconf->idle_job);
530 rte_jobstats_context_finish(&qconf->jobs_context);
531 } while (likely(stats_read_pending == 0));
533 rte_spinlock_unlock(&qconf->lock);
539 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
547 l2fwd_usage(const char *prgname)
549 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
550 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
551 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
552 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n"
553 " -l set system default locale instead of default (\"C\" locale) for thousands separator in stats.",
558 l2fwd_parse_portmask(const char *portmask)
563 /* parse hexadecimal string */
564 pm = strtoul(portmask, &end, 16);
565 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
575 l2fwd_parse_nqueue(const char *q_arg)
580 /* parse hexadecimal string */
581 n = strtoul(q_arg, &end, 10);
582 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
586 if (n >= MAX_RX_QUEUE_PER_LCORE)
593 l2fwd_parse_timer_period(const char *q_arg)
598 /* parse number string */
599 n = strtol(q_arg, &end, 10);
600 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
602 if (n >= MAX_TIMER_PERIOD)
608 /* Parse the argument given in the command line of the application */
610 l2fwd_parse_args(int argc, char **argv)
615 char *prgname = argv[0];
616 static struct option lgopts[] = {
622 while ((opt = getopt_long(argc, argvopt, "p:q:T:l",
623 lgopts, &option_index)) != EOF) {
628 l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
629 if (l2fwd_enabled_port_mask == 0) {
630 printf("invalid portmask\n");
631 l2fwd_usage(prgname);
638 l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
639 if (l2fwd_rx_queue_per_lcore == 0) {
640 printf("invalid queue number\n");
641 l2fwd_usage(prgname);
648 timer_period = l2fwd_parse_timer_period(optarg);
649 if (timer_period < 0) {
650 printf("invalid timer period\n");
651 l2fwd_usage(prgname);
656 /* For thousands separator in printf. */
658 setlocale(LC_ALL, "");
663 l2fwd_usage(prgname);
667 l2fwd_usage(prgname);
673 argv[optind-1] = prgname;
676 optind = 1; /* reset getopt lib */
680 /* Check the link status of all ports in up to 9s, and print them finally */
682 check_all_ports_link_status(uint32_t port_mask)
684 #define CHECK_INTERVAL 100 /* 100ms */
685 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
687 uint8_t count, all_ports_up, print_flag = 0;
688 struct rte_eth_link link;
690 printf("\nChecking link status");
692 for (count = 0; count <= MAX_CHECK_TIME; count++) {
694 RTE_ETH_FOREACH_DEV(portid) {
695 if ((port_mask & (1 << portid)) == 0)
697 memset(&link, 0, sizeof(link));
698 rte_eth_link_get_nowait(portid, &link);
699 /* print link status if flag set */
700 if (print_flag == 1) {
701 if (link.link_status)
703 "Port%d Link Up. Speed %u Mbps - %s\n",
704 portid, link.link_speed,
705 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
706 ("full-duplex") : ("half-duplex\n"));
708 printf("Port %d Link Down\n", portid);
711 /* clear all_ports_up flag if any link down */
712 if (link.link_status == ETH_LINK_DOWN) {
717 /* after finally printing all link status, get out */
721 if (all_ports_up == 0) {
724 rte_delay_ms(CHECK_INTERVAL);
727 /* set the print_flag if all ports up or timeout */
728 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
736 main(int argc, char **argv)
738 struct lcore_queue_conf *qconf;
739 unsigned lcore_id, rx_lcore_id;
740 unsigned nb_ports_in_mask = 0;
742 char name[RTE_JOBSTATS_NAMESIZE];
744 uint16_t nb_ports_available = 0;
745 uint16_t portid, last_port;
749 ret = rte_eal_init(argc, argv);
751 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
755 /* parse application arguments (after the EAL ones) */
756 ret = l2fwd_parse_args(argc, argv);
758 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
760 rte_timer_subsystem_init();
762 /* fetch default timer frequency. */
763 hz = rte_get_timer_hz();
765 /* create the mbuf pool */
767 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
768 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
769 if (l2fwd_pktmbuf_pool == NULL)
770 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
772 nb_ports = rte_eth_dev_count_avail();
774 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
776 /* reset l2fwd_dst_ports */
777 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
778 l2fwd_dst_ports[portid] = 0;
782 * Each logical core is assigned a dedicated TX queue on each port.
784 RTE_ETH_FOREACH_DEV(portid) {
785 /* skip ports that are not enabled */
786 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
789 if (nb_ports_in_mask % 2) {
790 l2fwd_dst_ports[portid] = last_port;
791 l2fwd_dst_ports[last_port] = portid;
797 if (nb_ports_in_mask % 2) {
798 printf("Notice: odd number of ports in portmask.\n");
799 l2fwd_dst_ports[last_port] = last_port;
805 /* Initialize the port/queue configuration of each logical core */
806 RTE_ETH_FOREACH_DEV(portid) {
807 /* skip ports that are not enabled */
808 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
811 /* get the lcore_id for this port */
812 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
813 lcore_queue_conf[rx_lcore_id].n_rx_port ==
814 l2fwd_rx_queue_per_lcore) {
816 if (rx_lcore_id >= RTE_MAX_LCORE)
817 rte_exit(EXIT_FAILURE, "Not enough cores\n");
820 if (qconf != &lcore_queue_conf[rx_lcore_id])
821 /* Assigned a new logical core in the loop above. */
822 qconf = &lcore_queue_conf[rx_lcore_id];
824 qconf->rx_port_list[qconf->n_rx_port] = portid;
826 printf("Lcore %u: RX port %u\n", rx_lcore_id, portid);
829 /* Initialise each port */
830 RTE_ETH_FOREACH_DEV(portid) {
831 struct rte_eth_dev_info dev_info;
832 struct rte_eth_rxconf rxq_conf;
833 struct rte_eth_txconf txq_conf;
834 struct rte_eth_conf local_port_conf = port_conf;
836 /* skip ports that are not enabled */
837 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
838 printf("Skipping disabled port %u\n", portid);
841 nb_ports_available++;
844 printf("Initializing port %u... ", portid);
846 rte_eth_dev_info_get(portid, &dev_info);
847 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
848 local_port_conf.txmode.offloads |=
849 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
850 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
852 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
855 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
858 rte_exit(EXIT_FAILURE,
859 "Cannot adjust number of descriptors: err=%d, port=%u\n",
862 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
864 /* init one RX queue */
866 rxq_conf = dev_info.default_rxconf;
867 rxq_conf.offloads = local_port_conf.rxmode.offloads;
868 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
869 rte_eth_dev_socket_id(portid),
873 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup:err=%d, port=%u\n",
876 /* init one TX queue on each port */
877 txq_conf = dev_info.default_txconf;
878 txq_conf.offloads = local_port_conf.txmode.offloads;
880 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
881 rte_eth_dev_socket_id(portid),
884 rte_exit(EXIT_FAILURE,
885 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
888 /* Initialize TX buffers */
889 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
890 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
891 rte_eth_dev_socket_id(portid));
892 if (tx_buffer[portid] == NULL)
893 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
896 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
898 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
899 rte_eth_tx_buffer_count_callback,
900 &port_statistics[portid].dropped);
902 rte_exit(EXIT_FAILURE,
903 "Cannot set error callback for tx buffer on port %u\n",
907 ret = rte_eth_dev_start(portid);
909 rte_exit(EXIT_FAILURE, "rte_eth_dev_start:err=%d, port=%u\n",
914 rte_eth_promiscuous_enable(portid);
916 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
918 l2fwd_ports_eth_addr[portid].addr_bytes[0],
919 l2fwd_ports_eth_addr[portid].addr_bytes[1],
920 l2fwd_ports_eth_addr[portid].addr_bytes[2],
921 l2fwd_ports_eth_addr[portid].addr_bytes[3],
922 l2fwd_ports_eth_addr[portid].addr_bytes[4],
923 l2fwd_ports_eth_addr[portid].addr_bytes[5]);
925 /* initialize port stats */
926 memset(&port_statistics, 0, sizeof(port_statistics));
929 if (!nb_ports_available) {
930 rte_exit(EXIT_FAILURE,
931 "All available ports are disabled. Please set portmask.\n");
934 check_all_ports_link_status(l2fwd_enabled_port_mask);
936 drain_tsc = (hz + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
938 RTE_LCORE_FOREACH(lcore_id) {
939 qconf = &lcore_queue_conf[lcore_id];
941 rte_spinlock_init(&qconf->lock);
943 if (rte_jobstats_context_init(&qconf->jobs_context) != 0)
944 rte_panic("Jobs stats context for core %u init failed\n", lcore_id);
946 if (qconf->n_rx_port == 0) {
948 "lcore %u: no ports so no jobs stats context initialization\n",
953 * Set fixed period by setting min = max = initial period. Set target to
954 * zero as it is irrelevant for this job. */
955 rte_jobstats_init(&qconf->flush_job, "flush", drain_tsc, drain_tsc,
958 rte_timer_init(&qconf->flush_timer);
959 ret = rte_timer_reset(&qconf->flush_timer, drain_tsc, PERIODICAL,
960 lcore_id, &l2fwd_flush_job, NULL);
963 rte_exit(1, "Failed to reset flush job timer for lcore %u: %s",
964 lcore_id, rte_strerror(-ret));
967 for (i = 0; i < qconf->n_rx_port; i++) {
968 struct rte_jobstats *job = &qconf->port_fwd_jobs[i];
970 portid = qconf->rx_port_list[i];
971 printf("Setting forward job for port %u\n", portid);
973 snprintf(name, RTE_DIM(name), "port %u fwd", portid);
974 /* Setup forward job.
975 * Set min, max and initial period. Set target to MAX_PKT_BURST as
976 * this is desired optimal RX/TX burst size. */
977 rte_jobstats_init(job, name, 0, drain_tsc, 0, MAX_PKT_BURST);
978 rte_jobstats_set_update_period_function(job, l2fwd_job_update_cb);
980 rte_timer_init(&qconf->rx_timers[i]);
981 ret = rte_timer_reset(&qconf->rx_timers[i], 0, PERIODICAL, lcore_id,
982 &l2fwd_fwd_job, (void *)(uintptr_t)i);
985 rte_exit(1, "Failed to reset lcore %u port %u job timer: %s",
986 lcore_id, qconf->rx_port_list[i], rte_strerror(-ret));
992 rte_eal_alarm_set(timer_period * MS_PER_S, show_stats_cb, NULL);
994 RTE_LOG(INFO, L2FWD, "Stats display disabled\n");
996 /* launch per-lcore init on every lcore */
997 rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, NULL, CALL_MASTER);
998 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
999 if (rte_eal_wait_lcore(lcore_id) < 0)