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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>
57 #include <rte_tailq.h>
59 #include <rte_per_lcore.h>
60 #include <rte_launch.h>
61 #include <rte_atomic.h>
62 #include <rte_lcore.h>
63 #include <rte_branch_prediction.h>
64 #include <rte_interrupts.h>
66 #include <rte_debug.h>
67 #include <rte_ether.h>
68 #include <rte_ethdev.h>
71 #include <rte_mempool.h>
73 #include <rte_string_fns.h>
74 #include <rte_cycles.h>
75 #include <rte_malloc.h>
78 /* Macros for printing using RTE_LOG */
79 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
81 /* Max size of a single packet */
82 #define MAX_PACKET_SZ 2048
84 /* Number of bytes needed for each mbuf */
86 (MAX_PACKET_SZ + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
88 /* Number of mbufs in mempool that is created */
89 #define NB_MBUF (8192 * 16)
91 /* How many packets to attempt to read from NIC in one go */
92 #define PKT_BURST_SZ 32
94 /* How many objects (mbufs) to keep in per-lcore mempool cache */
95 #define MEMPOOL_CACHE_SZ PKT_BURST_SZ
97 /* Number of RX ring descriptors */
100 /* Number of TX ring descriptors */
103 /* Total octets in ethernet header */
104 #define KNI_ENET_HEADER_SIZE 14
106 /* Total octets in the FCS */
107 #define KNI_ENET_FCS_SIZE 4
109 #define KNI_US_PER_SECOND 1000000
110 #define KNI_SECOND_PER_DAY 86400
112 #define KNI_MAX_KTHREAD 32
114 * Structure of port parameters
116 struct kni_port_params {
117 uint8_t port_id;/* Port ID */
118 unsigned lcore_rx; /* lcore ID for RX */
119 unsigned lcore_tx; /* lcore ID for TX */
120 uint32_t nb_lcore_k; /* Number of lcores for KNI multi kernel threads */
121 uint32_t nb_kni; /* Number of KNI devices to be created */
122 unsigned lcore_k[KNI_MAX_KTHREAD]; /* lcore ID list for kthreads */
123 struct rte_kni *kni[KNI_MAX_KTHREAD]; /* KNI context pointers */
124 } __rte_cache_aligned;
126 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
129 /* Options for configuring ethernet port */
130 static struct rte_eth_conf port_conf = {
132 .header_split = 0, /* Header Split disabled */
133 .hw_ip_checksum = 0, /* IP checksum offload disabled */
134 .hw_vlan_filter = 0, /* VLAN filtering disabled */
135 .jumbo_frame = 0, /* Jumbo Frame Support disabled */
136 .hw_strip_crc = 0, /* CRC stripped by hardware */
139 .mq_mode = ETH_MQ_TX_NONE,
143 /* Mempool for mbufs */
144 static struct rte_mempool * pktmbuf_pool = NULL;
146 /* Mask of enabled ports */
147 static uint32_t ports_mask = 0;
148 /* Ports set in promiscuous mode off by default. */
149 static int promiscuous_on = 0;
151 /* Structure type for recording kni interface specific stats */
152 struct kni_interface_stats {
153 /* number of pkts received from NIC, and sent to KNI */
156 /* number of pkts received from NIC, but failed to send to KNI */
159 /* number of pkts received from KNI, and sent to NIC */
162 /* number of pkts received from KNI, but failed to send to NIC */
166 /* kni device statistics array */
167 static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
169 static int kni_change_mtu(uint8_t port_id, unsigned new_mtu);
170 static int kni_config_network_interface(uint8_t port_id, uint8_t if_up);
172 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
174 /* Print out statistics on packets handled */
180 printf("\n**KNI example application statistics**\n"
181 "====== ============== ============ ============ ============ ============\n"
182 " Port Lcore(RX/TX) rx_packets rx_dropped tx_packets tx_dropped\n"
183 "------ -------------- ------------ ------------ ------------ ------------\n");
184 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
185 if (!kni_port_params_array[i])
188 printf("%7d %10u/%2u %13"PRIu64" %13"PRIu64" %13"PRIu64" "
190 kni_port_params_array[i]->lcore_rx,
191 kni_port_params_array[i]->lcore_tx,
192 kni_stats[i].rx_packets,
193 kni_stats[i].rx_dropped,
194 kni_stats[i].tx_packets,
195 kni_stats[i].tx_dropped);
197 printf("====== ============== ============ ============ ============ ============\n");
200 /* Custom handling of signals to handle stats and kni processing */
202 signal_handler(int signum)
204 /* When we receive a USR1 signal, print stats */
205 if (signum == SIGUSR1) {
209 /* When we receive a USR2 signal, reset stats */
210 if (signum == SIGUSR2) {
211 memset(&kni_stats, 0, sizeof(kni_stats));
212 printf("\n**Statistics have been reset**\n");
216 /* When we receive a RTMIN or SIGINT signal, stop kni processing */
217 if (signum == SIGRTMIN || signum == SIGINT){
218 printf("SIGRTMIN is received, and the KNI processing is "
220 rte_atomic32_inc(&kni_stop);
226 kni_burst_free_mbufs(struct rte_mbuf **pkts, unsigned num)
233 for (i = 0; i < num; i++) {
234 rte_pktmbuf_free(pkts[i]);
240 * Interface to burst rx and enqueue mbufs into rx_q
243 kni_ingress(struct kni_port_params *p)
248 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
254 port_id = p->port_id;
255 for (i = 0; i < nb_kni; i++) {
256 /* Burst rx from eth */
257 nb_rx = rte_eth_rx_burst(port_id, 0, pkts_burst, PKT_BURST_SZ);
258 if (unlikely(nb_rx > PKT_BURST_SZ)) {
259 RTE_LOG(ERR, APP, "Error receiving from eth\n");
262 /* Burst tx to kni */
263 num = rte_kni_tx_burst(p->kni[i], pkts_burst, nb_rx);
264 kni_stats[port_id].rx_packets += num;
266 rte_kni_handle_request(p->kni[i]);
267 if (unlikely(num < nb_rx)) {
268 /* Free mbufs not tx to kni interface */
269 kni_burst_free_mbufs(&pkts_burst[num], nb_rx - num);
270 kni_stats[port_id].rx_dropped += nb_rx - num;
276 * Interface to dequeue mbufs from tx_q and burst tx
279 kni_egress(struct kni_port_params *p)
284 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
290 port_id = p->port_id;
291 for (i = 0; i < nb_kni; i++) {
292 /* Burst rx from kni */
293 num = rte_kni_rx_burst(p->kni[i], pkts_burst, PKT_BURST_SZ);
294 if (unlikely(num > PKT_BURST_SZ)) {
295 RTE_LOG(ERR, APP, "Error receiving from KNI\n");
298 /* Burst tx to eth */
299 nb_tx = rte_eth_tx_burst(port_id, 0, pkts_burst, (uint16_t)num);
300 kni_stats[port_id].tx_packets += nb_tx;
301 if (unlikely(nb_tx < num)) {
302 /* Free mbufs not tx to NIC */
303 kni_burst_free_mbufs(&pkts_burst[nb_tx], num - nb_tx);
304 kni_stats[port_id].tx_dropped += num - nb_tx;
310 main_loop(__rte_unused void *arg)
312 uint8_t i, nb_ports = rte_eth_dev_count();
314 const unsigned lcore_id = rte_lcore_id();
321 enum lcore_rxtx flag = LCORE_NONE;
323 nb_ports = (uint8_t)(nb_ports < RTE_MAX_ETHPORTS ?
324 nb_ports : RTE_MAX_ETHPORTS);
325 for (i = 0; i < nb_ports; i++) {
326 if (!kni_port_params_array[i])
328 if (kni_port_params_array[i]->lcore_rx == (uint8_t)lcore_id) {
331 } else if (kni_port_params_array[i]->lcore_tx ==
338 if (flag == LCORE_RX) {
339 RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
340 kni_port_params_array[i]->lcore_rx,
341 kni_port_params_array[i]->port_id);
343 f_stop = rte_atomic32_read(&kni_stop);
346 kni_ingress(kni_port_params_array[i]);
348 } else if (flag == LCORE_TX) {
349 RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
350 kni_port_params_array[i]->lcore_tx,
351 kni_port_params_array[i]->port_id);
353 f_stop = rte_atomic32_read(&kni_stop);
356 kni_egress(kni_port_params_array[i]);
359 RTE_LOG(INFO, APP, "Lcore %u has nothing to do\n", lcore_id);
364 /* Display usage instructions */
366 print_usage(const char *prgname)
368 RTE_LOG(INFO, APP, "\nUsage: %s [EAL options] -- -p PORTMASK -P "
369 "[--config (port,lcore_rx,lcore_tx,lcore_kthread...)"
370 "[,(port,lcore_rx,lcore_tx,lcore_kthread...)]]\n"
371 " -p PORTMASK: hex bitmask of ports to use\n"
372 " -P : enable promiscuous mode\n"
373 " --config (port,lcore_rx,lcore_tx,lcore_kthread...): "
374 "port and lcore configurations\n",
378 /* Convert string to unsigned number. 0 is returned if error occurs */
380 parse_unsigned(const char *portmask)
385 num = strtoul(portmask, &end, 16);
386 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
389 return (uint32_t)num;
396 struct kni_port_params **p = kni_port_params_array;
398 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
401 RTE_LOG(DEBUG, APP, "Port ID: %d\n", p[i]->port_id);
402 RTE_LOG(DEBUG, APP, "Rx lcore ID: %u, Tx lcore ID: %u\n",
403 p[i]->lcore_rx, p[i]->lcore_tx);
404 for (j = 0; j < p[i]->nb_lcore_k; j++)
405 RTE_LOG(DEBUG, APP, "Kernel thread lcore ID: %u\n",
411 parse_config(const char *arg)
413 const char *p, *p0 = arg;
420 _NUM_FLD = KNI_MAX_KTHREAD + 3,
423 char *str_fld[_NUM_FLD];
424 unsigned long int_fld[_NUM_FLD];
425 uint8_t port_id, nb_kni_port_params = 0;
427 memset(&kni_port_params_array, 0, sizeof(kni_port_params_array));
428 while (((p = strchr(p0, '(')) != NULL) &&
429 nb_kni_port_params < RTE_MAX_ETHPORTS) {
431 if ((p0 = strchr(p, ')')) == NULL)
434 if (size >= sizeof(s)) {
435 printf("Invalid config parameters\n");
438 snprintf(s, sizeof(s), "%.*s", size, p);
439 nb_token = rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',');
440 if (nb_token <= FLD_LCORE_TX) {
441 printf("Invalid config parameters\n");
444 for (i = 0; i < nb_token; i++) {
446 int_fld[i] = strtoul(str_fld[i], &end, 0);
447 if (errno != 0 || end == str_fld[i]) {
448 printf("Invalid config parameters\n");
454 port_id = (uint8_t)int_fld[i++];
455 if (port_id >= RTE_MAX_ETHPORTS) {
456 printf("Port ID %d could not exceed the maximum %d\n",
457 port_id, RTE_MAX_ETHPORTS);
460 if (kni_port_params_array[port_id]) {
461 printf("Port %d has been configured\n", port_id);
464 kni_port_params_array[port_id] =
465 (struct kni_port_params*)rte_zmalloc("KNI_port_params",
466 sizeof(struct kni_port_params), CACHE_LINE_SIZE);
467 kni_port_params_array[port_id]->port_id = port_id;
468 kni_port_params_array[port_id]->lcore_rx =
469 (uint8_t)int_fld[i++];
470 kni_port_params_array[port_id]->lcore_tx =
471 (uint8_t)int_fld[i++];
472 if (kni_port_params_array[port_id]->lcore_rx >= RTE_MAX_LCORE ||
473 kni_port_params_array[port_id]->lcore_tx >= RTE_MAX_LCORE) {
474 printf("lcore_rx %u or lcore_tx %u ID could not "
475 "exceed the maximum %u\n",
476 kni_port_params_array[port_id]->lcore_rx,
477 kni_port_params_array[port_id]->lcore_tx,
478 (unsigned)RTE_MAX_LCORE);
481 for (j = 0; i < nb_token && j < KNI_MAX_KTHREAD; i++, j++)
482 kni_port_params_array[port_id]->lcore_k[j] =
484 kni_port_params_array[port_id]->nb_lcore_k = j;
491 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
492 if (kni_port_params_array[i]) {
493 rte_free(kni_port_params_array[i]);
494 kni_port_params_array[i] = NULL;
502 validate_parameters(uint32_t portmask)
507 printf("No port configured in port mask\n");
511 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
512 if (((portmask & (1 << i)) && !kni_port_params_array[i]) ||
513 (!(portmask & (1 << i)) && kni_port_params_array[i]))
514 rte_exit(EXIT_FAILURE, "portmask is not consistent "
515 "to port ids specified in --config\n");
517 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
518 (unsigned)(kni_port_params_array[i]->lcore_rx)))
519 rte_exit(EXIT_FAILURE, "lcore id %u for "
520 "port %d receiving not enabled\n",
521 kni_port_params_array[i]->lcore_rx,
522 kni_port_params_array[i]->port_id);
524 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
525 (unsigned)(kni_port_params_array[i]->lcore_tx)))
526 rte_exit(EXIT_FAILURE, "lcore id %u for "
527 "port %d transmitting not enabled\n",
528 kni_port_params_array[i]->lcore_tx,
529 kni_port_params_array[i]->port_id);
536 #define CMDLINE_OPT_CONFIG "config"
538 /* Parse the arguments given in the command line of the application */
540 parse_args(int argc, char **argv)
542 int opt, longindex, ret = 0;
543 const char *prgname = argv[0];
544 static struct option longopts[] = {
545 {CMDLINE_OPT_CONFIG, required_argument, NULL, 0},
549 /* Disable printing messages within getopt() */
552 /* Parse command line */
553 while ((opt = getopt_long(argc, argv, "p:P", longopts,
554 &longindex)) != EOF) {
557 ports_mask = parse_unsigned(optarg);
563 if (!strncmp(longopts[longindex].name,
565 sizeof(CMDLINE_OPT_CONFIG))) {
566 ret = parse_config(optarg);
568 printf("Invalid config\n");
569 print_usage(prgname);
575 print_usage(prgname);
576 rte_exit(EXIT_FAILURE, "Invalid option specified\n");
580 /* Check that options were parsed ok */
581 if (validate_parameters(ports_mask) < 0) {
582 print_usage(prgname);
583 rte_exit(EXIT_FAILURE, "Invalid parameters\n");
589 /* Initialise a single port on an Ethernet device */
591 init_port(uint8_t port)
595 /* Initialise device and RX/TX queues */
596 RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
598 ret = rte_eth_dev_configure(port, 1, 1, &port_conf);
600 rte_exit(EXIT_FAILURE, "Could not configure port%u (%d)\n",
601 (unsigned)port, ret);
603 ret = rte_eth_rx_queue_setup(port, 0, NB_RXD,
604 rte_eth_dev_socket_id(port), NULL, pktmbuf_pool);
606 rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
607 "port%u (%d)\n", (unsigned)port, ret);
609 ret = rte_eth_tx_queue_setup(port, 0, NB_TXD,
610 rte_eth_dev_socket_id(port), NULL);
612 rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
613 "port%u (%d)\n", (unsigned)port, ret);
615 ret = rte_eth_dev_start(port);
617 rte_exit(EXIT_FAILURE, "Could not start port%u (%d)\n",
618 (unsigned)port, ret);
621 rte_eth_promiscuous_enable(port);
624 /* Check the link status of all ports in up to 9s, and print them finally */
626 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
628 #define CHECK_INTERVAL 100 /* 100ms */
629 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
630 uint8_t portid, count, all_ports_up, print_flag = 0;
631 struct rte_eth_link link;
633 printf("\nChecking link status\n");
635 for (count = 0; count <= MAX_CHECK_TIME; count++) {
637 for (portid = 0; portid < port_num; portid++) {
638 if ((port_mask & (1 << portid)) == 0)
640 memset(&link, 0, sizeof(link));
641 rte_eth_link_get_nowait(portid, &link);
642 /* print link status if flag set */
643 if (print_flag == 1) {
644 if (link.link_status)
645 printf("Port %d Link Up - speed %u "
646 "Mbps - %s\n", (uint8_t)portid,
647 (unsigned)link.link_speed,
648 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
649 ("full-duplex") : ("half-duplex\n"));
651 printf("Port %d Link Down\n",
655 /* clear all_ports_up flag if any link down */
656 if (link.link_status == 0) {
661 /* after finally printing all link status, get out */
665 if (all_ports_up == 0) {
668 rte_delay_ms(CHECK_INTERVAL);
671 /* set the print_flag if all ports up or timeout */
672 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
679 /* Callback for request of changing MTU */
681 kni_change_mtu(uint8_t port_id, unsigned new_mtu)
684 struct rte_eth_conf conf;
686 if (port_id >= rte_eth_dev_count()) {
687 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
691 RTE_LOG(INFO, APP, "Change MTU of port %d to %u\n", port_id, new_mtu);
693 /* Stop specific port */
694 rte_eth_dev_stop(port_id);
696 memcpy(&conf, &port_conf, sizeof(conf));
698 if (new_mtu > ETHER_MAX_LEN)
699 conf.rxmode.jumbo_frame = 1;
701 conf.rxmode.jumbo_frame = 0;
703 /* mtu + length of header + length of FCS = max pkt length */
704 conf.rxmode.max_rx_pkt_len = new_mtu + KNI_ENET_HEADER_SIZE +
706 ret = rte_eth_dev_configure(port_id, 1, 1, &conf);
708 RTE_LOG(ERR, APP, "Fail to reconfigure port %d\n", port_id);
712 /* Restart specific port */
713 ret = rte_eth_dev_start(port_id);
715 RTE_LOG(ERR, APP, "Fail to restart port %d\n", port_id);
722 /* Callback for request of configuring network interface up/down */
724 kni_config_network_interface(uint8_t port_id, uint8_t if_up)
728 if (port_id >= rte_eth_dev_count() || port_id >= RTE_MAX_ETHPORTS) {
729 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
733 RTE_LOG(INFO, APP, "Configure network interface of %d %s\n",
734 port_id, if_up ? "up" : "down");
736 if (if_up != 0) { /* Configure network interface up */
737 rte_eth_dev_stop(port_id);
738 ret = rte_eth_dev_start(port_id);
739 } else /* Configure network interface down */
740 rte_eth_dev_stop(port_id);
743 RTE_LOG(ERR, APP, "Failed to start port %d\n", port_id);
749 kni_alloc(uint8_t port_id)
753 struct rte_kni_conf conf;
754 struct kni_port_params **params = kni_port_params_array;
756 if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
759 params[port_id]->nb_kni = params[port_id]->nb_lcore_k ?
760 params[port_id]->nb_lcore_k : 1;
762 for (i = 0; i < params[port_id]->nb_kni; i++) {
763 /* Clear conf at first */
764 memset(&conf, 0, sizeof(conf));
765 if (params[port_id]->nb_lcore_k) {
766 snprintf(conf.name, RTE_KNI_NAMESIZE,
767 "vEth%u_%u", port_id, i);
768 conf.core_id = params[port_id]->lcore_k[i];
771 snprintf(conf.name, RTE_KNI_NAMESIZE,
773 conf.group_id = (uint16_t)port_id;
774 conf.mbuf_size = MAX_PACKET_SZ;
776 * The first KNI device associated to a port
777 * is the master, for multiple kernel thread
781 struct rte_kni_ops ops;
782 struct rte_eth_dev_info dev_info;
784 memset(&dev_info, 0, sizeof(dev_info));
785 rte_eth_dev_info_get(port_id, &dev_info);
786 conf.addr = dev_info.pci_dev->addr;
787 conf.id = dev_info.pci_dev->id;
789 memset(&ops, 0, sizeof(ops));
790 ops.port_id = port_id;
791 ops.change_mtu = kni_change_mtu;
792 ops.config_network_if = kni_config_network_interface;
794 kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
796 kni = rte_kni_alloc(pktmbuf_pool, &conf, NULL);
799 rte_exit(EXIT_FAILURE, "Fail to create kni for "
800 "port: %d\n", port_id);
801 params[port_id]->kni[i] = kni;
808 kni_free_kni(uint8_t port_id)
811 struct kni_port_params **p = kni_port_params_array;
813 if (port_id >= RTE_MAX_ETHPORTS || !p[port_id])
816 for (i = 0; i < p[i]->nb_kni; i++) {
817 rte_kni_release(p[i]->kni[i]);
820 rte_eth_dev_stop(port_id);
825 /* Initialise ports/queues etc. and start main loop on each core */
827 main(int argc, char** argv)
830 uint8_t nb_sys_ports, port;
833 /* Associate signal_hanlder function with USR signals */
834 signal(SIGUSR1, signal_handler);
835 signal(SIGUSR2, signal_handler);
836 signal(SIGRTMIN, signal_handler);
837 signal(SIGINT, signal_handler);
840 ret = rte_eal_init(argc, argv);
842 rte_exit(EXIT_FAILURE, "Could not initialise EAL (%d)\n", ret);
846 /* Parse application arguments (after the EAL ones) */
847 ret = parse_args(argc, argv);
849 rte_exit(EXIT_FAILURE, "Could not parse input parameters\n");
851 /* Create the mbuf pool */
852 pktmbuf_pool = rte_mempool_create("mbuf_pool", NB_MBUF, MBUF_SZ,
854 sizeof(struct rte_pktmbuf_pool_private),
855 rte_pktmbuf_pool_init, NULL, rte_pktmbuf_init, NULL,
857 if (pktmbuf_pool == NULL) {
858 rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n");
862 /* Get number of ports found in scan */
863 nb_sys_ports = rte_eth_dev_count();
864 if (nb_sys_ports == 0)
865 rte_exit(EXIT_FAILURE, "No supported Ethernet devices found - "
866 "check that CONFIG_RTE_LIBRTE_IGB_PMD=y and/or "
867 "CONFIG_RTE_LIBRTE_IXGBE_PMD=y in the config file\n");
869 /* Check if the configured port ID is valid */
870 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
871 if (kni_port_params_array[i] && i >= nb_sys_ports)
872 rte_exit(EXIT_FAILURE, "Configured invalid "
875 /* Initialise each port */
876 for (port = 0; port < nb_sys_ports; port++) {
877 /* Skip ports that are not enabled */
878 if (!(ports_mask & (1 << port)))
882 if (port >= RTE_MAX_ETHPORTS)
883 rte_exit(EXIT_FAILURE, "Can not use more than "
884 "%d ports for kni\n", RTE_MAX_ETHPORTS);
888 check_all_ports_link_status(nb_sys_ports, ports_mask);
890 /* Launch per-lcore function on every lcore */
891 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
892 RTE_LCORE_FOREACH_SLAVE(i) {
893 if (rte_eal_wait_lcore(i) < 0)
897 /* Release resources */
898 for (port = 0; port < nb_sys_ports; port++) {
899 if (!(ports_mask & (1 << port)))
903 #ifdef RTE_LIBRTE_XEN_DOM0
906 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
907 if (kni_port_params_array[i]) {
908 rte_free(kni_port_params_array[i]);
909 kni_port_params_array[i] = NULL;