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 128
51 #define RTE_TEST_TX_DESC_DEFAULT 512
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 const struct rte_eth_conf port_conf = {
82 .header_split = 0, /**< Header Split disabled */
83 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
84 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
85 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
86 .hw_strip_crc = 1, /**< CRC stripped by hardware */
89 .mq_mode = ETH_MQ_TX_NONE,
92 .lsc = 1, /**< lsc interrupt feature enabled */
96 struct rte_mempool * lsi_pktmbuf_pool = NULL;
98 /* Per-port statistics struct */
99 struct lsi_port_statistics {
103 } __rte_cache_aligned;
104 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
106 /* A tsc-based timer responsible for triggering statistics printout */
107 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
108 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
109 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
111 /* Print out statistics on packets dropped */
115 struct rte_eth_link link;
116 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
119 total_packets_dropped = 0;
120 total_packets_tx = 0;
121 total_packets_rx = 0;
123 const char clr[] = { 27, '[', '2', 'J', '\0' };
124 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
126 /* Clear screen and move to top left */
127 printf("%s%s", clr, topLeft);
129 printf("\nPort statistics ====================================");
131 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
132 /* skip ports that are not enabled */
133 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
136 memset(&link, 0, sizeof(link));
137 rte_eth_link_get_nowait(portid, &link);
138 printf("\nStatistics for port %u ------------------------------"
139 "\nLink status: %25s"
141 "\nLink duplex: %25s"
142 "\nPackets sent: %24"PRIu64
143 "\nPackets received: %20"PRIu64
144 "\nPackets dropped: %21"PRIu64,
146 (link.link_status ? "Link up" : "Link down"),
147 (unsigned)link.link_speed,
148 (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
149 "full-duplex" : "half-duplex"),
150 port_statistics[portid].tx,
151 port_statistics[portid].rx,
152 port_statistics[portid].dropped);
154 total_packets_dropped += port_statistics[portid].dropped;
155 total_packets_tx += port_statistics[portid].tx;
156 total_packets_rx += port_statistics[portid].rx;
158 printf("\nAggregate statistics ==============================="
159 "\nTotal packets sent: %18"PRIu64
160 "\nTotal packets received: %14"PRIu64
161 "\nTotal packets dropped: %15"PRIu64,
164 total_packets_dropped);
165 printf("\n====================================================\n");
169 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
171 struct ether_hdr *eth;
173 unsigned dst_port = lsi_dst_ports[portid];
175 struct rte_eth_dev_tx_buffer *buffer;
177 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
179 /* 02:00:00:00:00:xx */
180 tmp = ð->d_addr.addr_bytes[0];
181 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
184 ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
186 buffer = tx_buffer[dst_port];
187 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
189 port_statistics[dst_port].tx += sent;
192 /* main processing loop */
196 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
200 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
201 unsigned i, j, portid, nb_rx;
202 struct lcore_queue_conf *qconf;
203 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
205 struct rte_eth_dev_tx_buffer *buffer;
210 lcore_id = rte_lcore_id();
211 qconf = &lcore_queue_conf[lcore_id];
213 if (qconf->n_rx_port == 0) {
214 RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
218 RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
220 for (i = 0; i < qconf->n_rx_port; i++) {
222 portid = qconf->rx_port_list[i];
223 RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
229 cur_tsc = rte_rdtsc();
232 * TX burst queue drain
234 diff_tsc = cur_tsc - prev_tsc;
235 if (unlikely(diff_tsc > drain_tsc)) {
237 for (i = 0; i < qconf->n_rx_port; i++) {
239 portid = lsi_dst_ports[qconf->rx_port_list[i]];
240 buffer = tx_buffer[portid];
242 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
244 port_statistics[portid].tx += sent;
248 /* if timer is enabled */
249 if (timer_period > 0) {
251 /* advance the timer */
252 timer_tsc += diff_tsc;
254 /* if timer has reached its timeout */
255 if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
257 /* do this only on master core */
258 if (lcore_id == rte_get_master_lcore()) {
260 /* reset the timer */
270 * Read packet from RX queues
272 for (i = 0; i < qconf->n_rx_port; i++) {
274 portid = qconf->rx_port_list[i];
275 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
276 pkts_burst, MAX_PKT_BURST);
278 port_statistics[portid].rx += nb_rx;
280 for (j = 0; j < nb_rx; j++) {
282 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
283 lsi_simple_forward(m, portid);
290 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
298 lsi_usage(const char *prgname)
300 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
301 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
302 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
303 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
308 lsi_parse_portmask(const char *portmask)
313 /* parse hexadecimal string */
314 pm = strtoul(portmask, &end, 16);
315 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
325 lsi_parse_nqueue(const char *q_arg)
330 /* parse hexadecimal string */
331 n = strtoul(q_arg, &end, 10);
332 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
336 if (n >= MAX_RX_QUEUE_PER_LCORE)
343 lsi_parse_timer_period(const char *q_arg)
348 /* parse number string */
349 n = strtol(q_arg, &end, 10);
350 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
352 if (n >= MAX_TIMER_PERIOD)
358 /* Parse the argument given in the command line of the application */
360 lsi_parse_args(int argc, char **argv)
365 char *prgname = argv[0];
366 static struct option lgopts[] = {
372 while ((opt = getopt_long(argc, argvopt, "p:q:T:",
373 lgopts, &option_index)) != EOF) {
378 lsi_enabled_port_mask = lsi_parse_portmask(optarg);
379 if (lsi_enabled_port_mask == 0) {
380 printf("invalid portmask\n");
388 lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
389 if (lsi_rx_queue_per_lcore == 0) {
390 printf("invalid queue number\n");
398 timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
399 if (timer_period < 0) {
400 printf("invalid timer period\n");
418 argv[optind-1] = prgname;
421 optind = 1; /* reset getopt lib */
426 * It will be called as the callback for specified port after a LSI interrupt
427 * has been fully handled. This callback needs to be implemented carefully as
428 * it will be called in the interrupt host thread which is different from the
429 * application main thread.
436 * Pointer to(address of) the parameters.
442 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
445 struct rte_eth_link link;
448 RTE_SET_USED(ret_param);
450 printf("\n\nIn registered callback...\n");
451 printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
452 rte_eth_link_get_nowait(port_id, &link);
453 if (link.link_status) {
454 printf("Port %d Link Up - speed %u Mbps - %s\n\n",
455 port_id, (unsigned)link.link_speed,
456 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
457 ("full-duplex") : ("half-duplex"));
459 printf("Port %d Link Down\n\n", port_id);
464 /* Check the link status of all ports in up to 9s, and print them finally */
466 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
468 #define CHECK_INTERVAL 100 /* 100ms */
469 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
470 uint8_t count, all_ports_up, print_flag = 0;
472 struct rte_eth_link link;
474 printf("\nChecking link status");
476 for (count = 0; count <= MAX_CHECK_TIME; count++) {
478 for (portid = 0; portid < port_num; portid++) {
479 if ((port_mask & (1 << portid)) == 0)
481 memset(&link, 0, sizeof(link));
482 rte_eth_link_get_nowait(portid, &link);
483 /* print link status if flag set */
484 if (print_flag == 1) {
485 if (link.link_status)
487 "Port%d Link Up. Speed %u Mbps - %s\n",
488 portid, link.link_speed,
489 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
490 ("full-duplex") : ("half-duplex\n"));
492 printf("Port %d Link Down\n", portid);
495 /* clear all_ports_up flag if any link down */
496 if (link.link_status == ETH_LINK_DOWN) {
501 /* after finally printing all link status, get out */
505 if (all_ports_up == 0) {
508 rte_delay_ms(CHECK_INTERVAL);
511 /* set the print_flag if all ports up or timeout */
512 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
520 main(int argc, char **argv)
522 struct lcore_queue_conf *qconf;
525 uint16_t portid, portid_last = 0;
526 unsigned lcore_id, rx_lcore_id;
527 unsigned nb_ports_in_mask = 0;
530 ret = rte_eal_init(argc, argv);
532 rte_exit(EXIT_FAILURE, "rte_eal_init failed");
536 /* parse application arguments (after the EAL ones) */
537 ret = lsi_parse_args(argc, argv);
539 rte_exit(EXIT_FAILURE, "Invalid arguments");
541 /* create the mbuf pool */
543 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
544 RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
545 if (lsi_pktmbuf_pool == NULL)
546 rte_panic("Cannot init mbuf pool\n");
548 nb_ports = rte_eth_dev_count();
550 rte_panic("No Ethernet port - bye\n");
553 * Each logical core is assigned a dedicated TX queue on each port.
555 for (portid = 0; portid < nb_ports; portid++) {
556 /* skip ports that are not enabled */
557 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
560 /* save the destination port id */
561 if (nb_ports_in_mask % 2) {
562 lsi_dst_ports[portid] = portid_last;
563 lsi_dst_ports[portid_last] = portid;
566 portid_last = portid;
570 if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
571 rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
572 "but it should be even and at least 2\n",
576 qconf = &lcore_queue_conf[rx_lcore_id];
578 /* Initialize the port/queue configuration of each logical core */
579 for (portid = 0; portid < nb_ports; portid++) {
580 /* skip ports that are not enabled */
581 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
584 /* get the lcore_id for this port */
585 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
586 lcore_queue_conf[rx_lcore_id].n_rx_port ==
587 lsi_rx_queue_per_lcore) {
590 if (rx_lcore_id >= RTE_MAX_LCORE)
591 rte_exit(EXIT_FAILURE, "Not enough cores\n");
593 if (qconf != &lcore_queue_conf[rx_lcore_id])
594 /* Assigned a new logical core in the loop above. */
595 qconf = &lcore_queue_conf[rx_lcore_id];
597 qconf->rx_port_list[qconf->n_rx_port] = portid;
599 printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
602 /* Initialise each port */
603 for (portid = 0; portid < nb_ports; portid++) {
604 /* skip ports that are not enabled */
605 if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
606 printf("Skipping disabled port %u\n", (unsigned) portid);
610 printf("Initializing port %u... ", (unsigned) portid);
612 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
614 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
615 ret, (unsigned) portid);
617 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
620 rte_exit(EXIT_FAILURE,
621 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
622 ret, (unsigned) portid);
624 /* register lsi interrupt callback, need to be after
625 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
626 * lsc interrupt will be present, and below callback to
627 * be registered will never be called.
629 rte_eth_dev_callback_register(portid,
630 RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
632 rte_eth_macaddr_get(portid,
633 &lsi_ports_eth_addr[portid]);
635 /* init one RX queue */
637 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
638 rte_eth_dev_socket_id(portid),
642 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
643 ret, (unsigned) portid);
645 /* init one TX queue logical core on each port */
647 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
648 rte_eth_dev_socket_id(portid),
651 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
652 ret, (unsigned) portid);
654 /* Initialize TX buffers */
655 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
656 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
657 rte_eth_dev_socket_id(portid));
658 if (tx_buffer[portid] == NULL)
659 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
662 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
664 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
665 rte_eth_tx_buffer_count_callback,
666 &port_statistics[portid].dropped);
668 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
669 "tx buffer on port %u\n", (unsigned) portid);
672 ret = rte_eth_dev_start(portid);
674 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
675 ret, (unsigned) portid);
678 rte_eth_promiscuous_enable(portid);
680 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
682 lsi_ports_eth_addr[portid].addr_bytes[0],
683 lsi_ports_eth_addr[portid].addr_bytes[1],
684 lsi_ports_eth_addr[portid].addr_bytes[2],
685 lsi_ports_eth_addr[portid].addr_bytes[3],
686 lsi_ports_eth_addr[portid].addr_bytes[4],
687 lsi_ports_eth_addr[portid].addr_bytes[5]);
689 /* initialize port stats */
690 memset(&port_statistics, 0, sizeof(port_statistics));
693 check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
695 /* launch per-lcore init on every lcore */
696 rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
697 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
698 if (rte_eal_wait_lcore(lcore_id) < 0)