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39 #include <sys/types.h>
41 #include <sys/queue.h>
42 #include <netinet/in.h>
49 #include <rte_common.h>
51 #include <rte_memory.h>
52 #include <rte_memcpy.h>
53 #include <rte_memzone.h>
54 #include <rte_tailq.h>
56 #include <rte_per_lcore.h>
57 #include <rte_launch.h>
58 #include <rte_atomic.h>
59 #include <rte_cycles.h>
60 #include <rte_prefetch.h>
61 #include <rte_lcore.h>
62 #include <rte_per_lcore.h>
63 #include <rte_branch_prediction.h>
64 #include <rte_interrupts.h>
66 #include <rte_random.h>
67 #include <rte_debug.h>
68 #include <rte_ether.h>
69 #include <rte_ethdev.h>
71 #include <rte_mempool.h>
74 #define RTE_LOGTYPE_LSI RTE_LOGTYPE_USER1
76 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
79 #define MAX_PKT_BURST 32
80 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
83 * Configurable number of RX/TX ring descriptors
85 #define RTE_TEST_RX_DESC_DEFAULT 128
86 #define RTE_TEST_TX_DESC_DEFAULT 512
87 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
88 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
90 /* ethernet addresses of ports */
91 static struct ether_addr lsi_ports_eth_addr[RTE_MAX_ETHPORTS];
93 /* mask of enabled ports */
94 static uint32_t lsi_enabled_port_mask = 0;
96 static unsigned int lsi_rx_queue_per_lcore = 1;
98 /* destination port for L2 forwarding */
99 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
101 #define MAX_PKT_BURST 32
104 struct rte_mbuf *m_table[MAX_PKT_BURST];
107 #define MAX_RX_QUEUE_PER_LCORE 16
108 #define MAX_TX_QUEUE_PER_PORT 16
109 struct lcore_queue_conf {
111 unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
112 unsigned tx_queue_id;
113 struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
115 } __rte_cache_aligned;
116 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
118 static const struct rte_eth_conf port_conf = {
121 .header_split = 0, /**< Header Split disabled */
122 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
123 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
124 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
125 .hw_strip_crc = 0, /**< CRC stripped by hardware */
128 .mq_mode = ETH_MQ_TX_NONE,
131 .lsc = 1, /**< lsc interrupt feature enabled */
135 struct rte_mempool * lsi_pktmbuf_pool = NULL;
137 /* Per-port statistics struct */
138 struct lsi_port_statistics {
142 } __rte_cache_aligned;
143 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
145 /* A tsc-based timer responsible for triggering statistics printout */
146 #define TIMER_MILLISECOND 2000000ULL /* around 1ms at 2 Ghz */
147 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
148 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* default period is 10 seconds */
150 /* Print out statistics on packets dropped */
154 struct rte_eth_link link;
155 uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
158 total_packets_dropped = 0;
159 total_packets_tx = 0;
160 total_packets_rx = 0;
162 const char clr[] = { 27, '[', '2', 'J', '\0' };
163 const char topLeft[] = { 27, '[', '1', ';', '1', 'H','\0' };
165 /* Clear screen and move to top left */
166 printf("%s%s", clr, topLeft);
168 printf("\nPort statistics ====================================");
170 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
171 /* skip ports that are not enabled */
172 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
175 memset(&link, 0, sizeof(link));
176 rte_eth_link_get_nowait((uint8_t)portid, &link);
177 printf("\nStatistics for port %u ------------------------------"
178 "\nLink status: %25s"
180 "\nLink duplex: %25s"
181 "\nPackets sent: %24"PRIu64
182 "\nPackets received: %20"PRIu64
183 "\nPackets dropped: %21"PRIu64,
185 (link.link_status ? "Link up" : "Link down"),
186 (unsigned)link.link_speed,
187 (link.link_duplex == ETH_LINK_FULL_DUPLEX ? \
188 "full-duplex" : "half-duplex"),
189 port_statistics[portid].tx,
190 port_statistics[portid].rx,
191 port_statistics[portid].dropped);
193 total_packets_dropped += port_statistics[portid].dropped;
194 total_packets_tx += port_statistics[portid].tx;
195 total_packets_rx += port_statistics[portid].rx;
197 printf("\nAggregate statistics ==============================="
198 "\nTotal packets sent: %18"PRIu64
199 "\nTotal packets received: %14"PRIu64
200 "\nTotal packets dropped: %15"PRIu64,
203 total_packets_dropped);
204 printf("\n====================================================\n");
207 /* Send the packet on an output interface */
209 lsi_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
211 struct rte_mbuf **m_table;
215 queueid = (uint16_t) qconf->tx_queue_id;
216 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
218 ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
219 port_statistics[port].tx += ret;
220 if (unlikely(ret < n)) {
221 port_statistics[port].dropped += (n - ret);
223 rte_pktmbuf_free(m_table[ret]);
230 /* Send the packet on an output interface */
232 lsi_send_packet(struct rte_mbuf *m, uint8_t port)
234 unsigned lcore_id, len;
235 struct lcore_queue_conf *qconf;
237 lcore_id = rte_lcore_id();
239 qconf = &lcore_queue_conf[lcore_id];
240 len = qconf->tx_mbufs[port].len;
241 qconf->tx_mbufs[port].m_table[len] = m;
244 /* enough pkts to be sent */
245 if (unlikely(len == MAX_PKT_BURST)) {
246 lsi_send_burst(qconf, MAX_PKT_BURST, port);
250 qconf->tx_mbufs[port].len = len;
255 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
257 struct ether_hdr *eth;
259 unsigned dst_port = lsi_dst_ports[portid];
261 eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
263 /* 02:00:00:00:00:xx */
264 tmp = ð->d_addr.addr_bytes[0];
265 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
268 ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr);
270 lsi_send_packet(m, (uint8_t) dst_port);
273 /* main processing loop */
277 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
280 uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
281 unsigned i, j, portid, nb_rx;
282 struct lcore_queue_conf *qconf;
283 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
288 lcore_id = rte_lcore_id();
289 qconf = &lcore_queue_conf[lcore_id];
291 if (qconf->n_rx_port == 0) {
292 RTE_LOG(INFO, LSI, "lcore %u has nothing to do\n", lcore_id);
296 RTE_LOG(INFO, LSI, "entering main loop on lcore %u\n", lcore_id);
298 for (i = 0; i < qconf->n_rx_port; i++) {
300 portid = qconf->rx_port_list[i];
301 RTE_LOG(INFO, LSI, " -- lcoreid=%u portid=%u\n", lcore_id,
307 cur_tsc = rte_rdtsc();
310 * TX burst queue drain
312 diff_tsc = cur_tsc - prev_tsc;
313 if (unlikely(diff_tsc > drain_tsc)) {
315 /* this could be optimized (use queueid instead of
316 * portid), but it is not called so often */
317 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
318 if (qconf->tx_mbufs[portid].len == 0)
320 lsi_send_burst(&lcore_queue_conf[lcore_id],
321 qconf->tx_mbufs[portid].len,
323 qconf->tx_mbufs[portid].len = 0;
326 /* if timer is enabled */
327 if (timer_period > 0) {
329 /* advance the timer */
330 timer_tsc += diff_tsc;
332 /* if timer has reached its timeout */
333 if (unlikely(timer_tsc >= (uint64_t) timer_period)) {
335 /* do this only on master core */
336 if (lcore_id == rte_get_master_lcore()) {
338 /* reset the timer */
348 * Read packet from RX queues
350 for (i = 0; i < qconf->n_rx_port; i++) {
352 portid = qconf->rx_port_list[i];
353 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
354 pkts_burst, MAX_PKT_BURST);
356 port_statistics[portid].rx += nb_rx;
358 for (j = 0; j < nb_rx; j++) {
360 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
361 lsi_simple_forward(m, portid);
368 lsi_launch_one_lcore(__attribute__((unused)) void *dummy)
376 lsi_usage(const char *prgname)
378 printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
379 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
380 " -q NQ: number of queue (=ports) per lcore (default is 1)\n"
381 " -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
386 lsi_parse_portmask(const char *portmask)
391 /* parse hexadecimal string */
392 pm = strtoul(portmask, &end, 16);
393 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
403 lsi_parse_nqueue(const char *q_arg)
408 /* parse hexadecimal string */
409 n = strtoul(q_arg, &end, 10);
410 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
414 if (n >= MAX_RX_QUEUE_PER_LCORE)
421 lsi_parse_timer_period(const char *q_arg)
426 /* parse number string */
427 n = strtol(q_arg, &end, 10);
428 if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
430 if (n >= MAX_TIMER_PERIOD)
436 /* Parse the argument given in the command line of the application */
438 lsi_parse_args(int argc, char **argv)
443 char *prgname = argv[0];
444 static struct option lgopts[] = {
450 while ((opt = getopt_long(argc, argvopt, "p:q:T:",
451 lgopts, &option_index)) != EOF) {
456 lsi_enabled_port_mask = lsi_parse_portmask(optarg);
457 if (lsi_enabled_port_mask == 0) {
458 printf("invalid portmask\n");
466 lsi_rx_queue_per_lcore = lsi_parse_nqueue(optarg);
467 if (lsi_rx_queue_per_lcore == 0) {
468 printf("invalid queue number\n");
476 timer_period = lsi_parse_timer_period(optarg) * 1000 * TIMER_MILLISECOND;
477 if (timer_period < 0) {
478 printf("invalid timer period\n");
496 argv[optind-1] = prgname;
499 optind = 0; /* reset getopt lib */
504 * It will be called as the callback for specified port after a LSI interrupt
505 * has been fully handled. This callback needs to be implemented carefully as
506 * it will be called in the interrupt host thread which is different from the
507 * application main thread.
514 * Pointer to(address of) the parameters.
520 lsi_event_callback(uint8_t port_id, enum rte_eth_event_type type, void *param)
522 struct rte_eth_link link;
526 printf("\n\nIn registered callback...\n");
527 printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event");
528 rte_eth_link_get_nowait(port_id, &link);
529 if (link.link_status) {
530 printf("Port %d Link Up - speed %u Mbps - %s\n\n",
531 port_id, (unsigned)link.link_speed,
532 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
533 ("full-duplex") : ("half-duplex"));
535 printf("Port %d Link Down\n\n", port_id);
538 /* Check the link status of all ports in up to 9s, and print them finally */
540 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
542 #define CHECK_INTERVAL 100 /* 100ms */
543 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
544 uint8_t portid, count, all_ports_up, print_flag = 0;
545 struct rte_eth_link link;
547 printf("\nChecking link status");
549 for (count = 0; count <= MAX_CHECK_TIME; count++) {
551 for (portid = 0; portid < port_num; portid++) {
552 if ((port_mask & (1 << portid)) == 0)
554 memset(&link, 0, sizeof(link));
555 rte_eth_link_get_nowait(portid, &link);
556 /* print link status if flag set */
557 if (print_flag == 1) {
558 if (link.link_status)
559 printf("Port %d Link Up - speed %u "
560 "Mbps - %s\n", (uint8_t)portid,
561 (unsigned)link.link_speed,
562 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
563 ("full-duplex") : ("half-duplex\n"));
565 printf("Port %d Link Down\n",
569 /* clear all_ports_up flag if any link down */
570 if (link.link_status == 0) {
575 /* after finally printing all link status, get out */
579 if (all_ports_up == 0) {
582 rte_delay_ms(CHECK_INTERVAL);
585 /* set the print_flag if all ports up or timeout */
586 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
594 main(int argc, char **argv)
596 struct lcore_queue_conf *qconf;
597 struct rte_eth_dev_info dev_info;
600 uint8_t portid, portid_last = 0;
601 unsigned lcore_id, rx_lcore_id;
602 unsigned nb_ports_in_mask = 0;
605 ret = rte_eal_init(argc, argv);
607 rte_exit(EXIT_FAILURE, "rte_eal_init failed");
611 /* parse application arguments (after the EAL ones) */
612 ret = lsi_parse_args(argc, argv);
614 rte_exit(EXIT_FAILURE, "Invalid arguments");
616 /* create the mbuf pool */
618 rte_mempool_create("mbuf_pool", NB_MBUF,
620 sizeof(struct rte_pktmbuf_pool_private),
621 rte_pktmbuf_pool_init, NULL,
622 rte_pktmbuf_init, NULL,
624 if (lsi_pktmbuf_pool == NULL)
625 rte_panic("Cannot init mbuf pool\n");
627 nb_ports = rte_eth_dev_count();
629 rte_panic("No Ethernet port - bye\n");
631 if (nb_ports > RTE_MAX_ETHPORTS)
632 nb_ports = RTE_MAX_ETHPORTS;
635 * Each logical core is assigned a dedicated TX queue on each port.
637 for (portid = 0; portid < nb_ports; portid++) {
638 /* skip ports that are not enabled */
639 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
642 /* save the destination port id */
643 if (nb_ports_in_mask % 2) {
644 lsi_dst_ports[portid] = portid_last;
645 lsi_dst_ports[portid_last] = portid;
648 portid_last = portid;
652 rte_eth_dev_info_get(portid, &dev_info);
654 if (nb_ports_in_mask < 2 || nb_ports_in_mask % 2)
655 rte_exit(EXIT_FAILURE, "Current enabled port number is %u, "
656 "but it should be even and at least 2\n",
660 qconf = &lcore_queue_conf[rx_lcore_id];
662 /* Initialize the port/queue configuration of each logical core */
663 for (portid = 0; portid < nb_ports; portid++) {
664 /* skip ports that are not enabled */
665 if ((lsi_enabled_port_mask & (1 << portid)) == 0)
668 /* get the lcore_id for this port */
669 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
670 lcore_queue_conf[rx_lcore_id].n_rx_port ==
671 lsi_rx_queue_per_lcore) {
674 if (rx_lcore_id >= RTE_MAX_LCORE)
675 rte_exit(EXIT_FAILURE, "Not enough cores\n");
677 if (qconf != &lcore_queue_conf[rx_lcore_id])
678 /* Assigned a new logical core in the loop above. */
679 qconf = &lcore_queue_conf[rx_lcore_id];
681 qconf->rx_port_list[qconf->n_rx_port] = portid;
683 printf("Lcore %u: RX port %u\n",rx_lcore_id, (unsigned) portid);
686 /* Initialise each port */
687 for (portid = 0; portid < nb_ports; portid++) {
688 /* skip ports that are not enabled */
689 if ((lsi_enabled_port_mask & (1 << portid)) == 0) {
690 printf("Skipping disabled port %u\n", (unsigned) portid);
694 printf("Initializing port %u... ", (unsigned) portid);
696 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
698 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%u\n",
699 ret, (unsigned) portid);
701 /* register lsi interrupt callback, need to be after
702 * rte_eth_dev_configure(). if (intr_conf.lsc == 0), no
703 * lsc interrupt will be present, and below callback to
704 * be registered will never be called.
706 rte_eth_dev_callback_register(portid,
707 RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
709 rte_eth_macaddr_get(portid,
710 &lsi_ports_eth_addr[portid]);
712 /* init one RX queue */
714 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
715 rte_eth_dev_socket_id(portid),
719 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, port=%u\n",
720 ret, (unsigned) portid);
722 /* init one TX queue logical core on each port */
724 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
725 rte_eth_dev_socket_id(portid),
728 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d,port=%u\n",
729 ret, (unsigned) portid);
732 ret = rte_eth_dev_start(portid);
734 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%u\n",
735 ret, (unsigned) portid);
738 printf("Port %u, MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
740 lsi_ports_eth_addr[portid].addr_bytes[0],
741 lsi_ports_eth_addr[portid].addr_bytes[1],
742 lsi_ports_eth_addr[portid].addr_bytes[2],
743 lsi_ports_eth_addr[portid].addr_bytes[3],
744 lsi_ports_eth_addr[portid].addr_bytes[4],
745 lsi_ports_eth_addr[portid].addr_bytes[5]);
747 /* initialize port stats */
748 memset(&port_statistics, 0, sizeof(port_statistics));
751 check_all_ports_link_status(nb_ports, lsi_enabled_port_mask);
753 /* launch per-lcore init on every lcore */
754 rte_eal_mp_remote_launch(lsi_launch_one_lcore, NULL, CALL_MASTER);
755 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
756 if (rte_eal_wait_lcore(lcore_id) < 0)