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39 #include <sys/types.h>
40 #include <sys/queue.h>
41 #include <netinet/in.h>
48 #include <rte_common.h>
50 #include <rte_malloc.h>
51 #include <rte_memory.h>
52 #include <rte_memcpy.h>
53 #include <rte_memzone.h>
55 #include <rte_launch.h>
56 #include <rte_atomic.h>
57 #include <rte_cycles.h>
58 #include <rte_prefetch.h>
59 #include <rte_lcore.h>
60 #include <rte_per_lcore.h>
61 #include <rte_branch_prediction.h>
62 #include <rte_interrupts.h>
64 #include <rte_random.h>
65 #include <rte_debug.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
68 #include <rte_mempool.h>
71 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
75 #define MAX_PKT_BURST 32
76 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
79 * Configurable number of RX/TX ring descriptors
81 #define RTE_TEST_RX_DESC_DEFAULT 128
82 #define RTE_TEST_TX_DESC_DEFAULT 512
83 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
84 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
86 /* ethernet addresses of ports */
87 static struct ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
89 /* mask of enabled ports */
90 static uint32_t lsi_enabled_port_mask = 0;
92 static unsigned int lsi_rx_queue_per_lcore = 1;
94 /* destination port for L2 forwarding */
95 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
97 #define MAX_PKT_BURST 32
99 #define MAX_RX_QUEUE_PER_LCORE 16
100 #define MAX_TX_QUEUE_PER_PORT 16
101 struct lcore_queue_conf {
103 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
104 unsigned tx_queue_id;
105 } __rte_cache_aligned;
106 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
108 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
110 static const struct rte_eth_conf port_conf = {
113 .header_split = 0, /**< Header Split disabled */
114 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
115 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
116 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
117 .hw_strip_crc = 1, /**< CRC stripped by hardware */
120 .mq_mode = ETH_MQ_TX_NONE,
123 .lsc = 1, /**< lsc interrupt feature enabled */
127 struct rte_mempool * lsi_pktmbuf_pool = NULL;
129 /* Per-port statistics struct */
130 struct lsi_port_statistics {
134 } __rte_cache_aligned;
135 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
137 /* A tsc-based timer responsible for triggering statistics printout */
138 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
139 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
140 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
142 /* Print out statistics on packets dropped */
146 struct rte_eth_link link;
147 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
150 total_packets_dropped = 0;
151 total_packets_tx = 0;
152 total_packets_rx = 0;
154 const char clr[] = { 27, '[', '2', 'J', '\0' };
155 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
157 /* Clear screen and move to top left */
158 printf("%s%s", clr, topLeft);
160 printf("\nPort statistics ====================================");
162 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
163 /* skip ports that are not enabled */
164 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
167 memset(&link, 0, sizeof(link));
168 rte_eth_link_get_nowait(portid, &link);
169 printf("\nStatistics for port %u ------------------------------"
170 "\nLink status: %25s"
172 "\nLink duplex: %25s"
173 "\nPackets sent: %24"PRIu64
174 "\nPackets received: %20"PRIu64
175 "\nPackets dropped: %21"PRIu64,
177 (link.link_status ? "Link up" : "Link down"),
178 (unsigned)link.link_speed,
179 (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
180 "full-duplex" : "half-duplex"),
181 port_statistics[portid].tx,
182 port_statistics[portid].rx,
183 port_statistics[portid].dropped);
185 total_packets_dropped += port_statistics[portid].dropped;
186 total_packets_tx += port_statistics[portid].tx;
187 total_packets_rx += port_statistics[portid].rx;
189 printf("\nAggregate statistics ==============================="
190 "\nTotal packets sent: %18"PRIu64
191 "\nTotal packets received: %14"PRIu64
192 "\nTotal packets dropped: %15"PRIu64,
195 total_packets_dropped);
196 printf("\n====================================================\n");
200 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
202 struct ether_hdr *eth;
204 unsigned dst_port = lsi_dst_ports[portid];
206 struct rte_eth_dev_tx_buffer *buffer;
208 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
210 /* 02:00:00:00:00:xx */
211 tmp = ð->d_addr.addr_bytes[0];
212 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
215 ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
217 buffer = tx_buffer[dst_port];
218 sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
220 port_statistics[dst_port].tx += sent;
223 /* main processing loop */
227 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
231 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
232 unsigned i, j, portid, nb_rx;
233 struct lcore_queue_conf *qconf;
234 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S *
236 struct rte_eth_dev_tx_buffer *buffer;
241 lcore_id = rte_lcore_id();
242 qconf = &lcore_queue_conf[lcore_id];
244 if (qconf->n_rx_port == 0) {
245 RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
249 RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
251 for (i = 0; i < qconf->n_rx_port; i++) {
253 portid = qconf->rx_port_list[i];
254 RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
260 cur_tsc = rte_rdtsc();
263 * TX burst queue drain
265 diff_tsc = cur_tsc - prev_tsc;
266 if (unlikely(diff_tsc > drain_tsc)) {
268 for (i = 0; i < qconf->n_rx_port; i++) {
270 portid = lsi_dst_ports[qconf->rx_port_list[i]];
271 buffer = tx_buffer[portid];
273 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
275 port_statistics[portid].tx += sent;
279 /* if timer is enabled */
280 if (timer_period > 0) {
282 /* advance the timer */
283 timer_tsc += diff_tsc;
285 /* if timer has reached its timeout */
286 if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
288 /* do this only on master core */
289 if (lcore_id == rte_get_master_lcore()) {
291 /* reset the timer */
301 * Read packet from RX queues
303 for (i = 0; i < qconf->n_rx_port; i++) {
305 portid = qconf->rx_port_list[i];
306 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
307 pkts_burst, MAX_PKT_BURST);
309 port_statistics[portid].rx += nb_rx;
311 for (j = 0; j < nb_rx; j++) {
313 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
314 lsi_simple_forward(m, portid);
321 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
329 lsi_usage(const char *prgname)
331 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
332 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
333 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
334 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
339 lsi_parse_portmask(const char *portmask)
344 /* parse hexadecimal string */
345 pm = strtoul(portmask, &end, 16);
346 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
356 lsi_parse_nqueue(const char *q_arg)
361 /* parse hexadecimal string */
362 n = strtoul(q_arg, &end, 10);
363 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
367 if (n >= MAX_RX_QUEUE_PER_LCORE)
374 lsi_parse_timer_period(const char *q_arg)
379 /* parse number string */
380 n = strtol(q_arg, &end, 10);
381 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
383 if (n >= MAX_TIMER_PERIOD)
389 /* Parse the argument given in the command line of the application */
391 lsi_parse_args(int argc, char **argv)
396 char *prgname = argv[0];
397 static struct option lgopts[] = {
403 while ((opt = getopt_long(argc, argvopt, "p:q:T:",
404 lgopts, &option_index)) != EOF) {
409 lsi_enabled_port_mask = lsi_parse_portmask(optarg);
410 if (lsi_enabled_port_mask == 0) {
411 printf("invalid portmask\n");
419 lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
420 if (lsi_rx_queue_per_lcore == 0) {
421 printf("invalid queue number\n");
429 timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
430 if (timer_period < 0) {
431 printf("invalid timer period\n");
449 argv[optind-1] = prgname;
452 optind = 1; /* reset getopt lib */
457 * It will be called as the callback for specified port after a LSI interrupt
458 * has been fully handled. This callback needs to be implemented carefully as
459 * it will be called in the interrupt host thread which is different from the
460 * application main thread.
467 * Pointer to(address of) the parameters.
473 lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param,
476 struct rte_eth_link link;
479 RTE_SET_USED(ret_param);
481 printf("\n\nIn registered callback...\n");
482 printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
483 rte_eth_link_get_nowait(port_id, &link);
484 if (link.link_status) {
485 printf("Port %d Link Up - speed %u Mbps - %s\n\n",
486 port_id, (unsigned)link.link_speed,
487 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
488 ("full-duplex") : ("half-duplex"));
490 printf("Port %d Link Down\n\n", port_id);
495 /* Check the link status of all ports in up to 9s, and print them finally */
497 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
499 #define CHECK_INTERVAL 100 /* 100ms */
500 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
501 uint8_t count, all_ports_up, print_flag = 0;
503 struct rte_eth_link link;
505 printf("\nChecking link status");
507 for (count = 0; count <= MAX_CHECK_TIME; count++) {
509 for (portid = 0; portid < port_num; portid++) {
510 if ((port_mask & (1 << portid)) == 0)
512 memset(&link, 0, sizeof(link));
513 rte_eth_link_get_nowait(portid, &link);
514 /* print link status if flag set */
515 if (print_flag == 1) {
516 if (link.link_status)
517 printf("Port %d Link Up - speed %u "
518 "Mbps - %s\n", (uint8_t)portid,
519 (unsigned)link.link_speed,
520 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
521 ("full-duplex") : ("half-duplex\n"));
523 printf("Port %d Link Down\n",
527 /* clear all_ports_up flag if any link down */
528 if (link.link_status == ETH_LINK_DOWN) {
533 /* after finally printing all link status, get out */
537 if (all_ports_up == 0) {
540 rte_delay_ms(CHECK_INTERVAL);
543 /* set the print_flag if all ports up or timeout */
544 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
552 main(int argc, char **argv)
554 struct lcore_queue_conf *qconf;
555 struct rte_eth_dev_info dev_info;
558 uint8_t portid, portid_last = 0;
559 unsigned lcore_id, rx_lcore_id;
560 unsigned nb_ports_in_mask = 0;
563 ret = rte_eal_init(argc, argv);
565 rte_exit(EXIT_FAILURE, "rte_eal_init failed");
569 /* parse application arguments (after the EAL ones) */
570 ret = lsi_parse_args(argc, argv);
572 rte_exit(EXIT_FAILURE, "Invalid arguments");
574 /* create the mbuf pool */
576 rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32, 0,
577 RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
578 if (lsi_pktmbuf_pool == NULL)
579 rte_panic("Cannot init mbuf pool\n");
581 nb_ports = rte_eth_dev_count();
583 rte_panic("No Ethernet port - bye\n");
586 * Each logical core is assigned a dedicated TX queue on each port.
588 for (portid = 0; portid < nb_ports; portid++) {
589 /* skip ports that are not enabled */
590 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
593 /* save the destination port id */
594 if (nb_ports_in_mask % 2) {
595 lsi_dst_ports[portid] = portid_last;
596 lsi_dst_ports[portid_last] = portid;
599 portid_last = portid;
603 rte_eth_dev_info_get(portid, &dev_info);
605 if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
606 rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
607 "but it should be even and at least 2\n",
611 qconf = &lcore_queue_conf[rx_lcore_id];
613 /* Initialize the port/queue configuration of each logical core */
614 for (portid = 0; portid < nb_ports; portid++) {
615 /* skip ports that are not enabled */
616 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
619 /* get the lcore_id for this port */
620 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
621 lcore_queue_conf[rx_lcore_id].n_rx_port ==
622 lsi_rx_queue_per_lcore) {
625 if (rx_lcore_id >= RTE_MAX_LCORE)
626 rte_exit(EXIT_FAILURE, "Not enough cores\n");
628 if (qconf != &lcore_queue_conf[rx_lcore_id])
629 /* Assigned a new logical core in the loop above. */
630 qconf = &lcore_queue_conf[rx_lcore_id];
632 qconf->rx_port_list[qconf->n_rx_port] = portid;
634 printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
637 /* Initialise each port */
638 for (portid = 0; portid < nb_ports; portid++) {
639 /* skip ports that are not enabled */
640 if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
641 printf("Skipping disabled port %u\n", (unsigned) portid);
645 printf("Initializing port %u... ", (unsigned) portid);
647 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
649 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
650 ret, (unsigned) portid);
652 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
655 rte_exit(EXIT_FAILURE,
656 "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%u\n",
657 ret, (unsigned) portid);
659 /* register lsi interrupt callback, need to be after
660 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
661 * lsc interrupt will be present, and below callback to
662 * be registered will never be called.
664 rte_eth_dev_callback_register(portid,
665 RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
667 rte_eth_macaddr_get(portid,
668 &lsi_ports_eth_addr[portid]);
670 /* init one RX queue */
672 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
673 rte_eth_dev_socket_id(portid),
677 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
678 ret, (unsigned) portid);
680 /* init one TX queue logical core on each port */
682 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
683 rte_eth_dev_socket_id(portid),
686 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
687 ret, (unsigned) portid);
689 /* Initialize TX buffers */
690 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
691 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
692 rte_eth_dev_socket_id(portid));
693 if (tx_buffer[portid] == NULL)
694 rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
697 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
699 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
700 rte_eth_tx_buffer_count_callback,
701 &port_statistics[portid].dropped);
703 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
704 "tx buffer on port %u\n", (unsigned) portid);
707 ret = rte_eth_dev_start(portid);
709 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
710 ret, (unsigned) portid);
713 rte_eth_promiscuous_enable(portid);
715 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
717 lsi_ports_eth_addr[portid].addr_bytes[0],
718 lsi_ports_eth_addr[portid].addr_bytes[1],
719 lsi_ports_eth_addr[portid].addr_bytes[2],
720 lsi_ports_eth_addr[portid].addr_bytes[3],
721 lsi_ports_eth_addr[portid].addr_bytes[4],
722 lsi_ports_eth_addr[portid].addr_bytes[5]);
724 /* initialize port stats */
725 memset(&port_statistics, 0, sizeof(port_statistics));
728 check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
730 /* launch per-lcore init on every lcore */
731 rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
732 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
733 if (rte_eal_wait_lcore(lcore_id) < 0)