4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <sys/queue.h>
44 #include <netinet/in.h>
46 #include <linux/if_tun.h>
48 #include <sys/ioctl.h>
52 #include <rte_common.h>
54 #include <rte_memory.h>
55 #include <rte_memcpy.h>
56 #include <rte_memzone.h>
58 #include <rte_per_lcore.h>
59 #include <rte_launch.h>
60 #include <rte_atomic.h>
61 #include <rte_lcore.h>
62 #include <rte_branch_prediction.h>
63 #include <rte_interrupts.h>
65 #include <rte_debug.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
70 #include <rte_mempool.h>
72 #include <rte_string_fns.h>
73 #include <rte_cycles.h>
74 #include <rte_malloc.h>
77 /* Macros for printing using RTE_LOG */
78 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
80 /* Max size of a single packet */
81 #define MAX_PACKET_SZ 2048
83 /* Size of the data buffer in each mbuf */
84 #define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
86 /* Number of mbufs in mempool that is created */
87 #define NB_MBUF (8192 * 16)
89 /* How many packets to attempt to read from NIC in one go */
90 #define PKT_BURST_SZ 32
92 /* How many objects (mbufs) to keep in per-lcore mempool cache */
93 #define MEMPOOL_CACHE_SZ PKT_BURST_SZ
95 /* Number of RX ring descriptors */
98 /* Number of TX ring descriptors */
101 /* Total octets in ethernet header */
102 #define KNI_ENET_HEADER_SIZE 14
104 /* Total octets in the FCS */
105 #define KNI_ENET_FCS_SIZE 4
107 #define KNI_US_PER_SECOND 1000000
108 #define KNI_SECOND_PER_DAY 86400
110 #define KNI_MAX_KTHREAD 32
112 * Structure of port parameters
114 struct kni_port_params {
115 uint8_t port_id;/* Port ID */
116 unsigned lcore_rx; /* lcore ID for RX */
117 unsigned lcore_tx; /* lcore ID for TX */
118 uint32_t nb_lcore_k; /* Number of lcores for KNI multi kernel threads */
119 uint32_t nb_kni; /* Number of KNI devices to be created */
120 unsigned lcore_k[KNI_MAX_KTHREAD]; /* lcore ID list for kthreads */
121 struct rte_kni *kni[KNI_MAX_KTHREAD]; /* KNI context pointers */
122 } __rte_cache_aligned;
124 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
127 /* Options for configuring ethernet port */
128 static struct rte_eth_conf port_conf = {
130 .header_split = 0, /* Header Split disabled */
131 .hw_ip_checksum = 0, /* IP checksum offload disabled */
132 .hw_vlan_filter = 0, /* VLAN filtering disabled */
133 .jumbo_frame = 0, /* Jumbo Frame Support disabled */
134 .hw_strip_crc = 0, /* CRC stripped by hardware */
137 .mq_mode = ETH_MQ_TX_NONE,
141 /* Mempool for mbufs */
142 static struct rte_mempool * pktmbuf_pool = NULL;
144 /* Mask of enabled ports */
145 static uint32_t ports_mask = 0;
146 /* Ports set in promiscuous mode off by default. */
147 static int promiscuous_on = 0;
149 /* Structure type for recording kni interface specific stats */
150 struct kni_interface_stats {
151 /* number of pkts received from NIC, and sent to KNI */
154 /* number of pkts received from NIC, but failed to send to KNI */
157 /* number of pkts received from KNI, and sent to NIC */
160 /* number of pkts received from KNI, but failed to send to NIC */
164 /* kni device statistics array */
165 static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
167 static int kni_change_mtu(uint8_t port_id, unsigned new_mtu);
168 static int kni_config_network_interface(uint8_t port_id, uint8_t if_up);
170 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
172 /* Print out statistics on packets handled */
178 printf("\n**KNI example application statistics**\n"
179 "====== ============== ============ ============ ============ ============\n"
180 " Port Lcore(RX/TX) rx_packets rx_dropped tx_packets tx_dropped\n"
181 "------ -------------- ------------ ------------ ------------ ------------\n");
182 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
183 if (!kni_port_params_array[i])
186 printf("%7d %10u/%2u %13"PRIu64" %13"PRIu64" %13"PRIu64" "
188 kni_port_params_array[i]->lcore_rx,
189 kni_port_params_array[i]->lcore_tx,
190 kni_stats[i].rx_packets,
191 kni_stats[i].rx_dropped,
192 kni_stats[i].tx_packets,
193 kni_stats[i].tx_dropped);
195 printf("====== ============== ============ ============ ============ ============\n");
198 /* Custom handling of signals to handle stats and kni processing */
200 signal_handler(int signum)
202 /* When we receive a USR1 signal, print stats */
203 if (signum == SIGUSR1) {
207 /* When we receive a USR2 signal, reset stats */
208 if (signum == SIGUSR2) {
209 memset(&kni_stats, 0, sizeof(kni_stats));
210 printf("\n**Statistics have been reset**\n");
214 /* When we receive a RTMIN or SIGINT signal, stop kni processing */
215 if (signum == SIGRTMIN || signum == SIGINT){
216 printf("SIGRTMIN is received, and the KNI processing is "
218 rte_atomic32_inc(&kni_stop);
224 kni_burst_free_mbufs(struct rte_mbuf **pkts, unsigned num)
231 for (i = 0; i < num; i++) {
232 rte_pktmbuf_free(pkts[i]);
238 * Interface to burst rx and enqueue mbufs into rx_q
241 kni_ingress(struct kni_port_params *p)
246 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
252 port_id = p->port_id;
253 for (i = 0; i < nb_kni; i++) {
254 /* Burst rx from eth */
255 nb_rx = rte_eth_rx_burst(port_id, 0, pkts_burst, PKT_BURST_SZ);
256 if (unlikely(nb_rx > PKT_BURST_SZ)) {
257 RTE_LOG(ERR, APP, "Error receiving from eth\n");
260 /* Burst tx to kni */
261 num = rte_kni_tx_burst(p->kni[i], pkts_burst, nb_rx);
262 kni_stats[port_id].rx_packets += num;
264 rte_kni_handle_request(p->kni[i]);
265 if (unlikely(num < nb_rx)) {
266 /* Free mbufs not tx to kni interface */
267 kni_burst_free_mbufs(&pkts_burst[num], nb_rx - num);
268 kni_stats[port_id].rx_dropped += nb_rx - num;
274 * Interface to dequeue mbufs from tx_q and burst tx
277 kni_egress(struct kni_port_params *p)
282 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
288 port_id = p->port_id;
289 for (i = 0; i < nb_kni; i++) {
290 /* Burst rx from kni */
291 num = rte_kni_rx_burst(p->kni[i], pkts_burst, PKT_BURST_SZ);
292 if (unlikely(num > PKT_BURST_SZ)) {
293 RTE_LOG(ERR, APP, "Error receiving from KNI\n");
296 /* Burst tx to eth */
297 nb_tx = rte_eth_tx_burst(port_id, 0, pkts_burst, (uint16_t)num);
298 kni_stats[port_id].tx_packets += nb_tx;
299 if (unlikely(nb_tx < num)) {
300 /* Free mbufs not tx to NIC */
301 kni_burst_free_mbufs(&pkts_burst[nb_tx], num - nb_tx);
302 kni_stats[port_id].tx_dropped += num - nb_tx;
308 main_loop(__rte_unused void *arg)
310 uint8_t i, nb_ports = rte_eth_dev_count();
312 const unsigned lcore_id = rte_lcore_id();
319 enum lcore_rxtx flag = LCORE_NONE;
321 nb_ports = (uint8_t)(nb_ports < RTE_MAX_ETHPORTS ?
322 nb_ports : RTE_MAX_ETHPORTS);
323 for (i = 0; i < nb_ports; i++) {
324 if (!kni_port_params_array[i])
326 if (kni_port_params_array[i]->lcore_rx == (uint8_t)lcore_id) {
329 } else if (kni_port_params_array[i]->lcore_tx ==
336 if (flag == LCORE_RX) {
337 RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
338 kni_port_params_array[i]->lcore_rx,
339 kni_port_params_array[i]->port_id);
341 f_stop = rte_atomic32_read(&kni_stop);
344 kni_ingress(kni_port_params_array[i]);
346 } else if (flag == LCORE_TX) {
347 RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
348 kni_port_params_array[i]->lcore_tx,
349 kni_port_params_array[i]->port_id);
351 f_stop = rte_atomic32_read(&kni_stop);
354 kni_egress(kni_port_params_array[i]);
357 RTE_LOG(INFO, APP, "Lcore %u has nothing to do\n", lcore_id);
362 /* Display usage instructions */
364 print_usage(const char *prgname)
366 RTE_LOG(INFO, APP, "\nUsage: %s [EAL options] -- -p PORTMASK -P "
367 "[--config (port,lcore_rx,lcore_tx,lcore_kthread...)"
368 "[,(port,lcore_rx,lcore_tx,lcore_kthread...)]]\n"
369 " -p PORTMASK: hex bitmask of ports to use\n"
370 " -P : enable promiscuous mode\n"
371 " --config (port,lcore_rx,lcore_tx,lcore_kthread...): "
372 "port and lcore configurations\n",
376 /* Convert string to unsigned number. 0 is returned if error occurs */
378 parse_unsigned(const char *portmask)
383 num = strtoul(portmask, &end, 16);
384 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
387 return (uint32_t)num;
394 struct kni_port_params **p = kni_port_params_array;
396 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
399 RTE_LOG(DEBUG, APP, "Port ID: %d\n", p[i]->port_id);
400 RTE_LOG(DEBUG, APP, "Rx lcore ID: %u, Tx lcore ID: %u\n",
401 p[i]->lcore_rx, p[i]->lcore_tx);
402 for (j = 0; j < p[i]->nb_lcore_k; j++)
403 RTE_LOG(DEBUG, APP, "Kernel thread lcore ID: %u\n",
409 parse_config(const char *arg)
411 const char *p, *p0 = arg;
418 _NUM_FLD = KNI_MAX_KTHREAD + 3,
421 char *str_fld[_NUM_FLD];
422 unsigned long int_fld[_NUM_FLD];
423 uint8_t port_id, nb_kni_port_params = 0;
425 memset(&kni_port_params_array, 0, sizeof(kni_port_params_array));
426 while (((p = strchr(p0, '(')) != NULL) &&
427 nb_kni_port_params < RTE_MAX_ETHPORTS) {
429 if ((p0 = strchr(p, ')')) == NULL)
432 if (size >= sizeof(s)) {
433 printf("Invalid config parameters\n");
436 snprintf(s, sizeof(s), "%.*s", size, p);
437 nb_token = rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',');
438 if (nb_token <= FLD_LCORE_TX) {
439 printf("Invalid config parameters\n");
442 for (i = 0; i < nb_token; i++) {
444 int_fld[i] = strtoul(str_fld[i], &end, 0);
445 if (errno != 0 || end == str_fld[i]) {
446 printf("Invalid config parameters\n");
452 port_id = (uint8_t)int_fld[i++];
453 if (port_id >= RTE_MAX_ETHPORTS) {
454 printf("Port ID %d could not exceed the maximum %d\n",
455 port_id, RTE_MAX_ETHPORTS);
458 if (kni_port_params_array[port_id]) {
459 printf("Port %d has been configured\n", port_id);
462 kni_port_params_array[port_id] =
463 rte_zmalloc("KNI_port_params",
464 sizeof(struct kni_port_params), RTE_CACHE_LINE_SIZE);
465 kni_port_params_array[port_id]->port_id = port_id;
466 kni_port_params_array[port_id]->lcore_rx =
467 (uint8_t)int_fld[i++];
468 kni_port_params_array[port_id]->lcore_tx =
469 (uint8_t)int_fld[i++];
470 if (kni_port_params_array[port_id]->lcore_rx >= RTE_MAX_LCORE ||
471 kni_port_params_array[port_id]->lcore_tx >= RTE_MAX_LCORE) {
472 printf("lcore_rx %u or lcore_tx %u ID could not "
473 "exceed the maximum %u\n",
474 kni_port_params_array[port_id]->lcore_rx,
475 kni_port_params_array[port_id]->lcore_tx,
476 (unsigned)RTE_MAX_LCORE);
479 for (j = 0; i < nb_token && j < KNI_MAX_KTHREAD; i++, j++)
480 kni_port_params_array[port_id]->lcore_k[j] =
482 kni_port_params_array[port_id]->nb_lcore_k = j;
489 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
490 if (kni_port_params_array[i]) {
491 rte_free(kni_port_params_array[i]);
492 kni_port_params_array[i] = NULL;
500 validate_parameters(uint32_t portmask)
505 printf("No port configured in port mask\n");
509 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
510 if (((portmask & (1 << i)) && !kni_port_params_array[i]) ||
511 (!(portmask & (1 << i)) && kni_port_params_array[i]))
512 rte_exit(EXIT_FAILURE, "portmask is not consistent "
513 "to port ids specified in --config\n");
515 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
516 (unsigned)(kni_port_params_array[i]->lcore_rx)))
517 rte_exit(EXIT_FAILURE, "lcore id %u for "
518 "port %d receiving not enabled\n",
519 kni_port_params_array[i]->lcore_rx,
520 kni_port_params_array[i]->port_id);
522 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
523 (unsigned)(kni_port_params_array[i]->lcore_tx)))
524 rte_exit(EXIT_FAILURE, "lcore id %u for "
525 "port %d transmitting not enabled\n",
526 kni_port_params_array[i]->lcore_tx,
527 kni_port_params_array[i]->port_id);
534 #define CMDLINE_OPT_CONFIG "config"
536 /* Parse the arguments given in the command line of the application */
538 parse_args(int argc, char **argv)
540 int opt, longindex, ret = 0;
541 const char *prgname = argv[0];
542 static struct option longopts[] = {
543 {CMDLINE_OPT_CONFIG, required_argument, NULL, 0},
547 /* Disable printing messages within getopt() */
550 /* Parse command line */
551 while ((opt = getopt_long(argc, argv, "p:P", longopts,
552 &longindex)) != EOF) {
555 ports_mask = parse_unsigned(optarg);
561 if (!strncmp(longopts[longindex].name,
563 sizeof(CMDLINE_OPT_CONFIG))) {
564 ret = parse_config(optarg);
566 printf("Invalid config\n");
567 print_usage(prgname);
573 print_usage(prgname);
574 rte_exit(EXIT_FAILURE, "Invalid option specified\n");
578 /* Check that options were parsed ok */
579 if (validate_parameters(ports_mask) < 0) {
580 print_usage(prgname);
581 rte_exit(EXIT_FAILURE, "Invalid parameters\n");
587 /* Initialize KNI subsystem */
591 unsigned int num_of_kni_ports = 0, i;
592 struct kni_port_params **params = kni_port_params_array;
594 /* Calculate the maximum number of KNI interfaces that will be used */
595 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
596 if (kni_port_params_array[i]) {
597 num_of_kni_ports += (params[i]->nb_lcore_k ?
598 params[i]->nb_lcore_k : 1);
602 /* Invoke rte KNI init to preallocate the ports */
603 rte_kni_init(num_of_kni_ports);
606 /* Initialise a single port on an Ethernet device */
608 init_port(uint8_t port)
612 /* Initialise device and RX/TX queues */
613 RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
615 ret = rte_eth_dev_configure(port, 1, 1, &port_conf);
617 rte_exit(EXIT_FAILURE, "Could not configure port%u (%d)\n",
618 (unsigned)port, ret);
620 ret = rte_eth_rx_queue_setup(port, 0, NB_RXD,
621 rte_eth_dev_socket_id(port), NULL, pktmbuf_pool);
623 rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
624 "port%u (%d)\n", (unsigned)port, ret);
626 ret = rte_eth_tx_queue_setup(port, 0, NB_TXD,
627 rte_eth_dev_socket_id(port), NULL);
629 rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
630 "port%u (%d)\n", (unsigned)port, ret);
632 ret = rte_eth_dev_start(port);
634 rte_exit(EXIT_FAILURE, "Could not start port%u (%d)\n",
635 (unsigned)port, ret);
638 rte_eth_promiscuous_enable(port);
641 /* Check the link status of all ports in up to 9s, and print them finally */
643 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
645 #define CHECK_INTERVAL 100 /* 100ms */
646 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
647 uint8_t portid, count, all_ports_up, print_flag = 0;
648 struct rte_eth_link link;
650 printf("\nChecking link status\n");
652 for (count = 0; count <= MAX_CHECK_TIME; count++) {
654 for (portid = 0; portid < port_num; portid++) {
655 if ((port_mask & (1 << portid)) == 0)
657 memset(&link, 0, sizeof(link));
658 rte_eth_link_get_nowait(portid, &link);
659 /* print link status if flag set */
660 if (print_flag == 1) {
661 if (link.link_status)
662 printf("Port %d Link Up - speed %u "
663 "Mbps - %s\n", (uint8_t)portid,
664 (unsigned)link.link_speed,
665 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
666 ("full-duplex") : ("half-duplex\n"));
668 printf("Port %d Link Down\n",
672 /* clear all_ports_up flag if any link down */
673 if (link.link_status == 0) {
678 /* after finally printing all link status, get out */
682 if (all_ports_up == 0) {
685 rte_delay_ms(CHECK_INTERVAL);
688 /* set the print_flag if all ports up or timeout */
689 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
696 /* Callback for request of changing MTU */
698 kni_change_mtu(uint8_t port_id, unsigned new_mtu)
701 struct rte_eth_conf conf;
703 if (port_id >= rte_eth_dev_count()) {
704 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
708 RTE_LOG(INFO, APP, "Change MTU of port %d to %u\n", port_id, new_mtu);
710 /* Stop specific port */
711 rte_eth_dev_stop(port_id);
713 memcpy(&conf, &port_conf, sizeof(conf));
715 if (new_mtu > ETHER_MAX_LEN)
716 conf.rxmode.jumbo_frame = 1;
718 conf.rxmode.jumbo_frame = 0;
720 /* mtu + length of header + length of FCS = max pkt length */
721 conf.rxmode.max_rx_pkt_len = new_mtu + KNI_ENET_HEADER_SIZE +
723 ret = rte_eth_dev_configure(port_id, 1, 1, &conf);
725 RTE_LOG(ERR, APP, "Fail to reconfigure port %d\n", port_id);
729 /* Restart specific port */
730 ret = rte_eth_dev_start(port_id);
732 RTE_LOG(ERR, APP, "Fail to restart port %d\n", port_id);
739 /* Callback for request of configuring network interface up/down */
741 kni_config_network_interface(uint8_t port_id, uint8_t if_up)
745 if (port_id >= rte_eth_dev_count() || port_id >= RTE_MAX_ETHPORTS) {
746 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
750 RTE_LOG(INFO, APP, "Configure network interface of %d %s\n",
751 port_id, if_up ? "up" : "down");
753 if (if_up != 0) { /* Configure network interface up */
754 rte_eth_dev_stop(port_id);
755 ret = rte_eth_dev_start(port_id);
756 } else /* Configure network interface down */
757 rte_eth_dev_stop(port_id);
760 RTE_LOG(ERR, APP, "Failed to start port %d\n", port_id);
766 kni_alloc(uint8_t port_id)
770 struct rte_kni_conf conf;
771 struct kni_port_params **params = kni_port_params_array;
773 if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
776 params[port_id]->nb_kni = params[port_id]->nb_lcore_k ?
777 params[port_id]->nb_lcore_k : 1;
779 for (i = 0; i < params[port_id]->nb_kni; i++) {
780 /* Clear conf at first */
781 memset(&conf, 0, sizeof(conf));
782 if (params[port_id]->nb_lcore_k) {
783 snprintf(conf.name, RTE_KNI_NAMESIZE,
784 "vEth%u_%u", port_id, i);
785 conf.core_id = params[port_id]->lcore_k[i];
788 snprintf(conf.name, RTE_KNI_NAMESIZE,
790 conf.group_id = (uint16_t)port_id;
791 conf.mbuf_size = MAX_PACKET_SZ;
793 * The first KNI device associated to a port
794 * is the master, for multiple kernel thread
798 struct rte_kni_ops ops;
799 struct rte_eth_dev_info dev_info;
801 memset(&dev_info, 0, sizeof(dev_info));
802 rte_eth_dev_info_get(port_id, &dev_info);
803 conf.addr = dev_info.pci_dev->addr;
804 conf.id = dev_info.pci_dev->id;
806 memset(&ops, 0, sizeof(ops));
807 ops.port_id = port_id;
808 ops.change_mtu = kni_change_mtu;
809 ops.config_network_if = kni_config_network_interface;
811 kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
813 kni = rte_kni_alloc(pktmbuf_pool, &conf, NULL);
816 rte_exit(EXIT_FAILURE, "Fail to create kni for "
817 "port: %d\n", port_id);
818 params[port_id]->kni[i] = kni;
825 kni_free_kni(uint8_t port_id)
828 struct kni_port_params **p = kni_port_params_array;
830 if (port_id >= RTE_MAX_ETHPORTS || !p[port_id])
833 for (i = 0; i < p[port_id]->nb_kni; i++) {
834 rte_kni_release(p[port_id]->kni[i]);
835 p[port_id]->kni[i] = NULL;
837 rte_eth_dev_stop(port_id);
842 /* Initialise ports/queues etc. and start main loop on each core */
844 main(int argc, char** argv)
847 uint8_t nb_sys_ports, port;
850 /* Associate signal_hanlder function with USR signals */
851 signal(SIGUSR1, signal_handler);
852 signal(SIGUSR2, signal_handler);
853 signal(SIGRTMIN, signal_handler);
854 signal(SIGINT, signal_handler);
857 ret = rte_eal_init(argc, argv);
859 rte_exit(EXIT_FAILURE, "Could not initialise EAL (%d)\n", ret);
863 /* Parse application arguments (after the EAL ones) */
864 ret = parse_args(argc, argv);
866 rte_exit(EXIT_FAILURE, "Could not parse input parameters\n");
868 /* Create the mbuf pool */
869 pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
870 MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, rte_socket_id());
871 if (pktmbuf_pool == NULL) {
872 rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n");
876 /* Get number of ports found in scan */
877 nb_sys_ports = rte_eth_dev_count();
878 if (nb_sys_ports == 0)
879 rte_exit(EXIT_FAILURE, "No supported Ethernet device found\n");
881 /* Check if the configured port ID is valid */
882 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
883 if (kni_port_params_array[i] && i >= nb_sys_ports)
884 rte_exit(EXIT_FAILURE, "Configured invalid "
887 /* Initialize KNI subsystem */
890 /* Initialise each port */
891 for (port = 0; port < nb_sys_ports; port++) {
892 /* Skip ports that are not enabled */
893 if (!(ports_mask & (1 << port)))
897 if (port >= RTE_MAX_ETHPORTS)
898 rte_exit(EXIT_FAILURE, "Can not use more than "
899 "%d ports for kni\n", RTE_MAX_ETHPORTS);
903 check_all_ports_link_status(nb_sys_ports, ports_mask);
905 /* Launch per-lcore function on every lcore */
906 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
907 RTE_LCORE_FOREACH_SLAVE(i) {
908 if (rte_eal_wait_lcore(i) < 0)
912 /* Release resources */
913 for (port = 0; port < nb_sys_ports; port++) {
914 if (!(ports_mask & (1 << port)))
918 #ifdef RTE_LIBRTE_XEN_DOM0
921 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
922 if (kni_port_params_array[i]) {
923 rte_free(kni_port_params_array[i]);
924 kni_port_params_array[i] = NULL;