1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
10 #include <sys/types.h>
11 #include <sys/queue.h>
12 #include <netinet/in.h>
19 #include <rte_common.h>
21 #include <rte_malloc.h>
22 #include <rte_memory.h>
23 #include <rte_memcpy.h>
25 #include <rte_launch.h>
26 #include <rte_atomic.h>
27 #include <rte_cycles.h>
28 #include <rte_prefetch.h>
29 #include <rte_lcore.h>
30 #include <rte_per_lcore.h>
31 #include <rte_branch_prediction.h>
32 #include <rte_interrupts.h>
33 #include <rte_random.h>
34 #include <rte_debug.h>
35 #include <rte_ether.h>
36 #include <rte_ethdev.h>
37 #include <rte_mempool.h>
40 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
44 #define MAX_PKT_BURST 32
45 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
48 * Configurable number of RX/TX ring descriptors
50 #define RTE_TEST_RX_DESC_DEFAULT 1024
51 #define RTE_TEST_TX_DESC_DEFAULT 1024
52 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
53 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
55 /* ethernet addresses of ports */
56 static struct ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
58 /* mask of enabled ports */
59 static uint32_t lsi_enabled_port_mask = 0;
61 static unsigned int lsi_rx_queue_per_lcore = 1;
63 /* destination port for L2 forwarding */
64 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
66 #define MAX_PKT_BURST 32
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];
74 } __rte_cache_aligned;
75 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
77 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
79 static struct rte_eth_conf port_conf = {
82 .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
85 .mq_mode = ETH_MQ_TX_NONE,
88 .lsc = 1, /**< lsc interrupt feature enabled */
92 struct rte_mempool * lsi_pktmbuf_pool = NULL;
94 /* Per-port statistics struct */
95 struct lsi_port_statistics {
99 } __rte_cache_aligned;
100 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
102 /* A tsc-based timer responsible for triggering statistics printout */
103 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
104 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
105 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
107 /* Print out statistics on packets dropped */
111 struct rte_eth_link link;
112 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
115 total_packets_dropped = 0;
116 total_packets_tx = 0;
117 total_packets_rx = 0;
119 const char clr[] = { 27, '[', '2', 'J', '\0' };
120 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
122 /* Clear screen and move to top left */
123 printf("%s%s", clr, topLeft);
125 printf("\nPort statistics ====================================");
127 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
128 /* skip ports that are not enabled */
129 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
132 memset(&link, 0, sizeof(link));
133 rte_eth_link_get_nowait(portid, &link);
134 printf("\nStatistics for port %u ------------------------------"
135 "\nLink status: %25s"
137 "\nLink duplex: %25s"
138 "\nPackets sent: %24"PRIu64
139 "\nPackets received: %20"PRIu64
140 "\nPackets dropped: %21"PRIu64,
142 (link.link_status ? "Link up" : "Link down"),
143 (unsigned)link.link_speed,
144 (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
145 "full-duplex" : "half-duplex"),
146 port_statistics[portid].tx,
147 port_statistics[portid].rx,
148 port_statistics[portid].dropped);
150 total_packets_dropped += port_statistics[portid].dropped;
151 total_packets_tx += port_statistics[portid].tx;
152 total_packets_rx += port_statistics[portid].rx;
154 printf("\nAggregate statistics ==============================="
155 "\nTotal packets sent: %18"PRIu64
156 "\nTotal packets received: %14"PRIu64
157 "\nTotal packets dropped: %15"PRIu64,
160 total_packets_dropped);
161 printf("\n====================================================\n");
165 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
167 struct ether_hdr *eth;
169 unsigned dst_port = lsi_dst_ports[portid];
171 struct rte_eth_dev_tx_buffer *buffer;
173 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
175 /* 02:00:00:00:00:xx */
176 tmp = ð->d_addr.addr_bytes[0];
177 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
180 ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
182 buffer = tx_buffer[dst_port];
183 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
185 port_statistics[dst_port].tx += sent;
188 /* main processing loop */
192 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
196 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
197 unsigned i, j, portid, nb_rx;
198 struct lcore_queue_conf *qconf;
199 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
201 struct rte_eth_dev_tx_buffer *buffer;
206 lcore_id = rte_lcore_id();
207 qconf = &lcore_queue_conf[lcore_id];
209 if (qconf->n_rx_port == 0) {
210 RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
214 RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
216 for (i = 0; i < qconf->n_rx_port; i++) {
218 portid = qconf->rx_port_list[i];
219 RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
225 cur_tsc = rte_rdtsc();
228 * TX burst queue drain
230 diff_tsc = cur_tsc - prev_tsc;
231 if (unlikely(diff_tsc > drain_tsc)) {
233 for (i = 0; i < qconf->n_rx_port; i++) {
235 portid = lsi_dst_ports[qconf->rx_port_list[i]];
236 buffer = tx_buffer[portid];
238 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
240 port_statistics[portid].tx += sent;
244 /* if timer is enabled */
245 if (timer_period > 0) {
247 /* advance the timer */
248 timer_tsc += diff_tsc;
250 /* if timer has reached its timeout */
251 if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
253 /* do this only on master core */
254 if (lcore_id == rte_get_master_lcore()) {
256 /* reset the timer */
266 * Read packet from RX queues
268 for (i = 0; i < qconf->n_rx_port; i++) {
270 portid = qconf->rx_port_list[i];
271 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
272 pkts_burst, MAX_PKT_BURST);
274 port_statistics[portid].rx += nb_rx;
276 for (j = 0; j < nb_rx; j++) {
278 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
279 lsi_simple_forward(m, portid);
286 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
294 lsi_usage(const char *prgname)
296 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
297 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
298 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
299 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
304 lsi_parse_portmask(const char *portmask)
309 /* parse hexadecimal string */
310 pm = strtoul(portmask, &end, 16);
311 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
321 lsi_parse_nqueue(const char *q_arg)
326 /* parse hexadecimal string */
327 n = strtoul(q_arg, &end, 10);
328 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
332 if (n >= MAX_RX_QUEUE_PER_LCORE)
339 lsi_parse_timer_period(const char *q_arg)
344 /* parse number string */
345 n = strtol(q_arg, &end, 10);
346 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
348 if (n >= MAX_TIMER_PERIOD)
354 /* Parse the argument given in the command line of the application */
356 lsi_parse_args(int argc, char **argv)
361 char *prgname = argv[0];
362 static struct option lgopts[] = {
368 while ((opt = getopt_long(argc, argvopt, "p:q:T:",
369 lgopts, &option_index)) != EOF) {
374 lsi_enabled_port_mask = lsi_parse_portmask(optarg);
375 if (lsi_enabled_port_mask == 0) {
376 printf("invalid portmask\n");
384 lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
385 if (lsi_rx_queue_per_lcore == 0) {
386 printf("invalid queue number\n");
394 timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
395 if (timer_period < 0) {
396 printf("invalid timer period\n");
414 argv[optind-1] = prgname;
417 optind = 1; /* reset getopt lib */
422 * It will be called as the callback for specified port after a LSI interrupt
423 * has been fully handled. This callback needs to be implemented carefully as
424 * it will be called in the interrupt host thread which is different from the
425 * application main thread.
432 * Pointer to(address of) the parameters.
438 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
441 struct rte_eth_link link;
444 RTE_SET_USED(ret_param);
446 printf("\n\nIn registered callback...\n");
447 printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
448 rte_eth_link_get_nowait(port_id, &link);
449 if (link.link_status) {
450 printf("Port %d Link Up - speed %u Mbps - %s\n\n",
451 port_id, (unsigned)link.link_speed,
452 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
453 ("full-duplex") : ("half-duplex"));
455 printf("Port %d Link Down\n\n", port_id);
460 /* Check the link status of all ports in up to 9s, and print them finally */
462 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
464 #define CHECK_INTERVAL 100 /* 100ms */
465 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
466 uint8_t count, all_ports_up, print_flag = 0;
468 struct rte_eth_link link;
470 printf("\nChecking link status");
472 for (count = 0; count <= MAX_CHECK_TIME; count++) {
474 for (portid = 0; portid < port_num; portid++) {
475 if ((port_mask & (1 << portid)) == 0)
477 memset(&link, 0, sizeof(link));
478 rte_eth_link_get_nowait(portid, &link);
479 /* print link status if flag set */
480 if (print_flag == 1) {
481 if (link.link_status)
483 "Port%d Link Up. Speed %u Mbps - %s\n",
484 portid, link.link_speed,
485 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
486 ("full-duplex") : ("half-duplex\n"));
488 printf("Port %d Link Down\n", portid);
491 /* clear all_ports_up flag if any link down */
492 if (link.link_status == ETH_LINK_DOWN) {
497 /* after finally printing all link status, get out */
501 if (all_ports_up == 0) {
504 rte_delay_ms(CHECK_INTERVAL);
507 /* set the print_flag if all ports up or timeout */
508 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
516 main(int argc, char **argv)
518 struct lcore_queue_conf *qconf;
521 uint16_t portid, portid_last = 0;
522 unsigned lcore_id, rx_lcore_id;
523 unsigned nb_ports_in_mask = 0;
526 ret = rte_eal_init(argc, argv);
528 rte_exit(EXIT_FAILURE, "rte_eal_init failed");
532 /* parse application arguments (after the EAL ones) */
533 ret = lsi_parse_args(argc, argv);
535 rte_exit(EXIT_FAILURE, "Invalid arguments");
537 /* create the mbuf pool */
539 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
540 RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
541 if (lsi_pktmbuf_pool == NULL)
542 rte_panic("Cannot init mbuf pool\n");
544 nb_ports = rte_eth_dev_count_avail();
546 rte_panic("No Ethernet port - bye\n");
549 * Each logical core is assigned a dedicated TX queue on each port.
551 for (portid = 0; portid < nb_ports; portid++) {
552 /* skip ports that are not enabled */
553 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
556 /* save the destination port id */
557 if (nb_ports_in_mask % 2) {
558 lsi_dst_ports[portid] = portid_last;
559 lsi_dst_ports[portid_last] = portid;
562 portid_last = portid;
566 if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
567 rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
568 "but it should be even and at least 2\n",
572 qconf = &lcore_queue_conf[rx_lcore_id];
574 /* Initialize the port/queue configuration of each logical core */
575 for (portid = 0; portid < nb_ports; portid++) {
576 /* skip ports that are not enabled */
577 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
580 /* get the lcore_id for this port */
581 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
582 lcore_queue_conf[rx_lcore_id].n_rx_port ==
583 lsi_rx_queue_per_lcore) {
586 if (rx_lcore_id >= RTE_MAX_LCORE)
587 rte_exit(EXIT_FAILURE, "Not enough cores\n");
589 if (qconf != &lcore_queue_conf[rx_lcore_id])
590 /* Assigned a new logical core in the loop above. */
591 qconf = &lcore_queue_conf[rx_lcore_id];
593 qconf->rx_port_list[qconf->n_rx_port] = portid;
595 printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
598 /* Initialise each port */
599 for (portid = 0; portid < nb_ports; portid++) {
600 struct rte_eth_rxconf rxq_conf;
601 struct rte_eth_txconf txq_conf;
602 struct rte_eth_conf local_port_conf = port_conf;
603 struct rte_eth_dev_info dev_info;
605 /* skip ports that are not enabled */
606 if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
607 printf("Skipping disabled port %u\n", (unsigned) portid);
611 printf("Initializing port %u... ", (unsigned) portid);
613 rte_eth_dev_info_get(portid, &dev_info);
614 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
615 local_port_conf.txmode.offloads |=
616 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
617 ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
619 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
620 ret, (unsigned) portid);
622 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
625 rte_exit(EXIT_FAILURE,
626 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
627 ret, (unsigned) portid);
629 /* register lsi interrupt callback, need to be after
630 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
631 * lsc interrupt will be present, and below callback to
632 * be registered will never be called.
634 rte_eth_dev_callback_register(portid,
635 RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
637 rte_eth_macaddr_get(portid,
638 &lsi_ports_eth_addr[portid]);
640 /* init one RX queue */
642 rxq_conf = dev_info.default_rxconf;
643 rxq_conf.offloads = local_port_conf.rxmode.offloads;
644 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
645 rte_eth_dev_socket_id(portid),
649 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
650 ret, (unsigned) portid);
652 /* init one TX queue logical core on each port */
654 txq_conf = dev_info.default_txconf;
655 txq_conf.offloads = local_port_conf.txmode.offloads;
656 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
657 rte_eth_dev_socket_id(portid),
660 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
661 ret, (unsigned) portid);
663 /* Initialize TX buffers */
664 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
665 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
666 rte_eth_dev_socket_id(portid));
667 if (tx_buffer[portid] == NULL)
668 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
671 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
673 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
674 rte_eth_tx_buffer_count_callback,
675 &port_statistics[portid].dropped);
677 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
678 "tx buffer on port %u\n", (unsigned) portid);
681 ret = rte_eth_dev_start(portid);
683 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
684 ret, (unsigned) portid);
687 rte_eth_promiscuous_enable(portid);
689 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
691 lsi_ports_eth_addr[portid].addr_bytes[0],
692 lsi_ports_eth_addr[portid].addr_bytes[1],
693 lsi_ports_eth_addr[portid].addr_bytes[2],
694 lsi_ports_eth_addr[portid].addr_bytes[3],
695 lsi_ports_eth_addr[portid].addr_bytes[4],
696 lsi_ports_eth_addr[portid].addr_bytes[5]);
698 /* initialize port stats */
699 memset(&port_statistics, 0, sizeof(port_statistics));
702 check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
704 /* launch per-lcore init on every lcore */
705 rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
706 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
707 if (rte_eal_wait_lcore(lcore_id) < 0)