4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
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14 * notice, this list of conditions and the following disclaimer in
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21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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>
68 #include <rte_mempool.h>
70 #include <rte_string_fns.h>
71 #include <rte_cycles.h>
72 #include <rte_malloc.h>
75 /* Macros for printing using RTE_LOG */
76 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
78 /* Max size of a single packet */
79 #define MAX_PACKET_SZ 2048
81 /* Size of the data buffer in each mbuf */
82 #define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
84 /* Number of mbufs in mempool that is created */
85 #define NB_MBUF (8192 * 16)
87 /* How many packets to attempt to read from NIC in one go */
88 #define PKT_BURST_SZ 32
90 /* How many objects (mbufs) to keep in per-lcore mempool cache */
91 #define MEMPOOL_CACHE_SZ PKT_BURST_SZ
93 /* Number of RX ring descriptors */
96 /* Number of TX ring descriptors */
99 /* Total octets in ethernet header */
100 #define KNI_ENET_HEADER_SIZE 14
102 /* Total octets in the FCS */
103 #define KNI_ENET_FCS_SIZE 4
105 #define KNI_US_PER_SECOND 1000000
106 #define KNI_SECOND_PER_DAY 86400
108 #define KNI_MAX_KTHREAD 32
110 * Structure of port parameters
112 struct kni_port_params {
113 uint8_t port_id;/* Port ID */
114 unsigned lcore_rx; /* lcore ID for RX */
115 unsigned lcore_tx; /* lcore ID for TX */
116 uint32_t nb_lcore_k; /* Number of lcores for KNI multi kernel threads */
117 uint32_t nb_kni; /* Number of KNI devices to be created */
118 unsigned lcore_k[KNI_MAX_KTHREAD]; /* lcore ID list for kthreads */
119 struct rte_kni *kni[KNI_MAX_KTHREAD]; /* KNI context pointers */
120 } __rte_cache_aligned;
122 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
125 /* Options for configuring ethernet port */
126 static struct rte_eth_conf port_conf = {
128 .header_split = 0, /* Header Split disabled */
129 .hw_ip_checksum = 0, /* IP checksum offload disabled */
130 .hw_vlan_filter = 0, /* VLAN filtering disabled */
131 .jumbo_frame = 0, /* Jumbo Frame Support disabled */
132 .hw_strip_crc = 1, /* CRC stripped by hardware */
135 .mq_mode = ETH_MQ_TX_NONE,
139 /* Mempool for mbufs */
140 static struct rte_mempool * pktmbuf_pool = NULL;
142 /* Mask of enabled ports */
143 static uint32_t ports_mask = 0;
144 /* Ports set in promiscuous mode off by default. */
145 static int promiscuous_on = 0;
147 /* Structure type for recording kni interface specific stats */
148 struct kni_interface_stats {
149 /* number of pkts received from NIC, and sent to KNI */
152 /* number of pkts received from NIC, but failed to send to KNI */
155 /* number of pkts received from KNI, and sent to NIC */
158 /* number of pkts received from KNI, but failed to send to NIC */
162 /* kni device statistics array */
163 static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
165 static int kni_change_mtu(uint8_t port_id, unsigned new_mtu);
166 static int kni_config_network_interface(uint8_t port_id, uint8_t if_up);
168 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
170 /* Print out statistics on packets handled */
176 printf("\n**KNI example application statistics**\n"
177 "====== ============== ============ ============ ============ ============\n"
178 " Port Lcore(RX/TX) rx_packets rx_dropped tx_packets tx_dropped\n"
179 "------ -------------- ------------ ------------ ------------ ------------\n");
180 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
181 if (!kni_port_params_array[i])
184 printf("%7d %10u/%2u %13"PRIu64" %13"PRIu64" %13"PRIu64" "
186 kni_port_params_array[i]->lcore_rx,
187 kni_port_params_array[i]->lcore_tx,
188 kni_stats[i].rx_packets,
189 kni_stats[i].rx_dropped,
190 kni_stats[i].tx_packets,
191 kni_stats[i].tx_dropped);
193 printf("====== ============== ============ ============ ============ ============\n");
196 /* Custom handling of signals to handle stats and kni processing */
198 signal_handler(int signum)
200 /* When we receive a USR1 signal, print stats */
201 if (signum == SIGUSR1) {
205 /* When we receive a USR2 signal, reset stats */
206 if (signum == SIGUSR2) {
207 memset(&kni_stats, 0, sizeof(kni_stats));
208 printf("\n**Statistics have been reset**\n");
212 /* When we receive a RTMIN or SIGINT signal, stop kni processing */
213 if (signum == SIGRTMIN || signum == SIGINT){
214 printf("SIGRTMIN is received, and the KNI processing is "
216 rte_atomic32_inc(&kni_stop);
222 kni_burst_free_mbufs(struct rte_mbuf **pkts, unsigned num)
229 for (i = 0; i < num; i++) {
230 rte_pktmbuf_free(pkts[i]);
236 * Interface to burst rx and enqueue mbufs into rx_q
239 kni_ingress(struct kni_port_params *p)
244 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
250 port_id = p->port_id;
251 for (i = 0; i < nb_kni; i++) {
252 /* Burst rx from eth */
253 nb_rx = rte_eth_rx_burst(port_id, 0, pkts_burst, PKT_BURST_SZ);
254 if (unlikely(nb_rx > PKT_BURST_SZ)) {
255 RTE_LOG(ERR, APP, "Error receiving from eth\n");
258 /* Burst tx to kni */
259 num = rte_kni_tx_burst(p->kni[i], pkts_burst, nb_rx);
260 kni_stats[port_id].rx_packets += num;
262 rte_kni_handle_request(p->kni[i]);
263 if (unlikely(num < nb_rx)) {
264 /* Free mbufs not tx to kni interface */
265 kni_burst_free_mbufs(&pkts_burst[num], nb_rx - num);
266 kni_stats[port_id].rx_dropped += nb_rx - num;
272 * Interface to dequeue mbufs from tx_q and burst tx
275 kni_egress(struct kni_port_params *p)
280 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
286 port_id = p->port_id;
287 for (i = 0; i < nb_kni; i++) {
288 /* Burst rx from kni */
289 num = rte_kni_rx_burst(p->kni[i], pkts_burst, PKT_BURST_SZ);
290 if (unlikely(num > PKT_BURST_SZ)) {
291 RTE_LOG(ERR, APP, "Error receiving from KNI\n");
294 /* Burst tx to eth */
295 nb_tx = rte_eth_tx_burst(port_id, 0, pkts_burst, (uint16_t)num);
296 kni_stats[port_id].tx_packets += nb_tx;
297 if (unlikely(nb_tx < num)) {
298 /* Free mbufs not tx to NIC */
299 kni_burst_free_mbufs(&pkts_burst[nb_tx], num - nb_tx);
300 kni_stats[port_id].tx_dropped += num - nb_tx;
306 main_loop(__rte_unused void *arg)
308 uint8_t i, nb_ports = rte_eth_dev_count();
310 const unsigned lcore_id = rte_lcore_id();
317 enum lcore_rxtx flag = LCORE_NONE;
319 for (i = 0; i < nb_ports; i++) {
320 if (!kni_port_params_array[i])
322 if (kni_port_params_array[i]->lcore_rx == (uint8_t)lcore_id) {
325 } else if (kni_port_params_array[i]->lcore_tx ==
332 if (flag == LCORE_RX) {
333 RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
334 kni_port_params_array[i]->lcore_rx,
335 kni_port_params_array[i]->port_id);
337 f_stop = rte_atomic32_read(&kni_stop);
340 kni_ingress(kni_port_params_array[i]);
342 } else if (flag == LCORE_TX) {
343 RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
344 kni_port_params_array[i]->lcore_tx,
345 kni_port_params_array[i]->port_id);
347 f_stop = rte_atomic32_read(&kni_stop);
350 kni_egress(kni_port_params_array[i]);
353 RTE_LOG(INFO, APP, "Lcore %u has nothing to do\n", lcore_id);
358 /* Display usage instructions */
360 print_usage(const char *prgname)
362 RTE_LOG(INFO, APP, "\nUsage: %s [EAL options] -- -p PORTMASK -P "
363 "[--config (port,lcore_rx,lcore_tx,lcore_kthread...)"
364 "[,(port,lcore_rx,lcore_tx,lcore_kthread...)]]\n"
365 " -p PORTMASK: hex bitmask of ports to use\n"
366 " -P : enable promiscuous mode\n"
367 " --config (port,lcore_rx,lcore_tx,lcore_kthread...): "
368 "port and lcore configurations\n",
372 /* Convert string to unsigned number. 0 is returned if error occurs */
374 parse_unsigned(const char *portmask)
379 num = strtoul(portmask, &end, 16);
380 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
383 return (uint32_t)num;
390 struct kni_port_params **p = kni_port_params_array;
392 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
395 RTE_LOG(DEBUG, APP, "Port ID: %d\n", p[i]->port_id);
396 RTE_LOG(DEBUG, APP, "Rx lcore ID: %u, Tx lcore ID: %u\n",
397 p[i]->lcore_rx, p[i]->lcore_tx);
398 for (j = 0; j < p[i]->nb_lcore_k; j++)
399 RTE_LOG(DEBUG, APP, "Kernel thread lcore ID: %u\n",
405 parse_config(const char *arg)
407 const char *p, *p0 = arg;
414 _NUM_FLD = KNI_MAX_KTHREAD + 3,
417 char *str_fld[_NUM_FLD];
418 unsigned long int_fld[_NUM_FLD];
419 uint8_t port_id, nb_kni_port_params = 0;
421 memset(&kni_port_params_array, 0, sizeof(kni_port_params_array));
422 while (((p = strchr(p0, '(')) != NULL) &&
423 nb_kni_port_params < RTE_MAX_ETHPORTS) {
425 if ((p0 = strchr(p, ')')) == NULL)
428 if (size >= sizeof(s)) {
429 printf("Invalid config parameters\n");
432 snprintf(s, sizeof(s), "%.*s", size, p);
433 nb_token = rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',');
434 if (nb_token <= FLD_LCORE_TX) {
435 printf("Invalid config parameters\n");
438 for (i = 0; i < nb_token; i++) {
440 int_fld[i] = strtoul(str_fld[i], &end, 0);
441 if (errno != 0 || end == str_fld[i]) {
442 printf("Invalid config parameters\n");
448 port_id = (uint8_t)int_fld[i++];
449 if (port_id >= RTE_MAX_ETHPORTS) {
450 printf("Port ID %d could not exceed the maximum %d\n",
451 port_id, RTE_MAX_ETHPORTS);
454 if (kni_port_params_array[port_id]) {
455 printf("Port %d has been configured\n", port_id);
458 kni_port_params_array[port_id] =
459 rte_zmalloc("KNI_port_params",
460 sizeof(struct kni_port_params), RTE_CACHE_LINE_SIZE);
461 kni_port_params_array[port_id]->port_id = port_id;
462 kni_port_params_array[port_id]->lcore_rx =
463 (uint8_t)int_fld[i++];
464 kni_port_params_array[port_id]->lcore_tx =
465 (uint8_t)int_fld[i++];
466 if (kni_port_params_array[port_id]->lcore_rx >= RTE_MAX_LCORE ||
467 kni_port_params_array[port_id]->lcore_tx >= RTE_MAX_LCORE) {
468 printf("lcore_rx %u or lcore_tx %u ID could not "
469 "exceed the maximum %u\n",
470 kni_port_params_array[port_id]->lcore_rx,
471 kni_port_params_array[port_id]->lcore_tx,
472 (unsigned)RTE_MAX_LCORE);
475 for (j = 0; i < nb_token && j < KNI_MAX_KTHREAD; i++, j++)
476 kni_port_params_array[port_id]->lcore_k[j] =
478 kni_port_params_array[port_id]->nb_lcore_k = j;
485 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
486 if (kni_port_params_array[i]) {
487 rte_free(kni_port_params_array[i]);
488 kni_port_params_array[i] = NULL;
496 validate_parameters(uint32_t portmask)
501 printf("No port configured in port mask\n");
505 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
506 if (((portmask & (1 << i)) && !kni_port_params_array[i]) ||
507 (!(portmask & (1 << i)) && kni_port_params_array[i]))
508 rte_exit(EXIT_FAILURE, "portmask is not consistent "
509 "to port ids specified in --config\n");
511 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
512 (unsigned)(kni_port_params_array[i]->lcore_rx)))
513 rte_exit(EXIT_FAILURE, "lcore id %u for "
514 "port %d receiving not enabled\n",
515 kni_port_params_array[i]->lcore_rx,
516 kni_port_params_array[i]->port_id);
518 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
519 (unsigned)(kni_port_params_array[i]->lcore_tx)))
520 rte_exit(EXIT_FAILURE, "lcore id %u for "
521 "port %d transmitting not enabled\n",
522 kni_port_params_array[i]->lcore_tx,
523 kni_port_params_array[i]->port_id);
530 #define CMDLINE_OPT_CONFIG "config"
532 /* Parse the arguments given in the command line of the application */
534 parse_args(int argc, char **argv)
536 int opt, longindex, ret = 0;
537 const char *prgname = argv[0];
538 static struct option longopts[] = {
539 {CMDLINE_OPT_CONFIG, required_argument, NULL, 0},
543 /* Disable printing messages within getopt() */
546 /* Parse command line */
547 while ((opt = getopt_long(argc, argv, "p:P", longopts,
548 &longindex)) != EOF) {
551 ports_mask = parse_unsigned(optarg);
557 if (!strncmp(longopts[longindex].name,
559 sizeof(CMDLINE_OPT_CONFIG))) {
560 ret = parse_config(optarg);
562 printf("Invalid config\n");
563 print_usage(prgname);
569 print_usage(prgname);
570 rte_exit(EXIT_FAILURE, "Invalid option specified\n");
574 /* Check that options were parsed ok */
575 if (validate_parameters(ports_mask) < 0) {
576 print_usage(prgname);
577 rte_exit(EXIT_FAILURE, "Invalid parameters\n");
583 /* Initialize KNI subsystem */
587 unsigned int num_of_kni_ports = 0, i;
588 struct kni_port_params **params = kni_port_params_array;
590 /* Calculate the maximum number of KNI interfaces that will be used */
591 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
592 if (kni_port_params_array[i]) {
593 num_of_kni_ports += (params[i]->nb_lcore_k ?
594 params[i]->nb_lcore_k : 1);
598 /* Invoke rte KNI init to preallocate the ports */
599 rte_kni_init(num_of_kni_ports);
602 /* Initialise a single port on an Ethernet device */
604 init_port(uint8_t port)
607 uint16_t nb_rxd = NB_RXD;
608 uint16_t nb_txd = NB_TXD;
610 /* Initialise device and RX/TX queues */
611 RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
613 ret = rte_eth_dev_configure(port, 1, 1, &port_conf);
615 rte_exit(EXIT_FAILURE, "Could not configure port%u (%d)\n",
616 (unsigned)port, ret);
618 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd);
620 rte_exit(EXIT_FAILURE, "Could not adjust number of descriptors "
621 "for port%u (%d)\n", (unsigned)port, ret);
623 ret = rte_eth_rx_queue_setup(port, 0, nb_rxd,
624 rte_eth_dev_socket_id(port), NULL, pktmbuf_pool);
626 rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
627 "port%u (%d)\n", (unsigned)port, ret);
629 ret = rte_eth_tx_queue_setup(port, 0, nb_txd,
630 rte_eth_dev_socket_id(port), NULL);
632 rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
633 "port%u (%d)\n", (unsigned)port, ret);
635 ret = rte_eth_dev_start(port);
637 rte_exit(EXIT_FAILURE, "Could not start port%u (%d)\n",
638 (unsigned)port, ret);
641 rte_eth_promiscuous_enable(port);
644 /* Check the link status of all ports in up to 9s, and print them finally */
646 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
648 #define CHECK_INTERVAL 100 /* 100ms */
649 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
650 uint8_t portid, count, all_ports_up, print_flag = 0;
651 struct rte_eth_link link;
653 printf("\nChecking link status\n");
655 for (count = 0; count <= MAX_CHECK_TIME; count++) {
657 for (portid = 0; portid < port_num; portid++) {
658 if ((port_mask & (1 << portid)) == 0)
660 memset(&link, 0, sizeof(link));
661 rte_eth_link_get_nowait(portid, &link);
662 /* print link status if flag set */
663 if (print_flag == 1) {
664 if (link.link_status)
665 printf("Port %d Link Up - speed %u "
666 "Mbps - %s\n", (uint8_t)portid,
667 (unsigned)link.link_speed,
668 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
669 ("full-duplex") : ("half-duplex\n"));
671 printf("Port %d Link Down\n",
675 /* clear all_ports_up flag if any link down */
676 if (link.link_status == ETH_LINK_DOWN) {
681 /* after finally printing all link status, get out */
685 if (all_ports_up == 0) {
688 rte_delay_ms(CHECK_INTERVAL);
691 /* set the print_flag if all ports up or timeout */
692 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
699 /* Callback for request of changing MTU */
701 kni_change_mtu(uint8_t port_id, unsigned new_mtu)
704 struct rte_eth_conf conf;
706 if (port_id >= rte_eth_dev_count()) {
707 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
711 RTE_LOG(INFO, APP, "Change MTU of port %d to %u\n", port_id, new_mtu);
713 /* Stop specific port */
714 rte_eth_dev_stop(port_id);
716 memcpy(&conf, &port_conf, sizeof(conf));
718 if (new_mtu > ETHER_MAX_LEN)
719 conf.rxmode.jumbo_frame = 1;
721 conf.rxmode.jumbo_frame = 0;
723 /* mtu + length of header + length of FCS = max pkt length */
724 conf.rxmode.max_rx_pkt_len = new_mtu + KNI_ENET_HEADER_SIZE +
726 ret = rte_eth_dev_configure(port_id, 1, 1, &conf);
728 RTE_LOG(ERR, APP, "Fail to reconfigure port %d\n", port_id);
732 /* Restart specific port */
733 ret = rte_eth_dev_start(port_id);
735 RTE_LOG(ERR, APP, "Fail to restart port %d\n", port_id);
742 /* Callback for request of configuring network interface up/down */
744 kni_config_network_interface(uint8_t port_id, uint8_t if_up)
748 if (port_id >= rte_eth_dev_count() || port_id >= RTE_MAX_ETHPORTS) {
749 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
753 RTE_LOG(INFO, APP, "Configure network interface of %d %s\n",
754 port_id, if_up ? "up" : "down");
756 if (if_up != 0) { /* Configure network interface up */
757 rte_eth_dev_stop(port_id);
758 ret = rte_eth_dev_start(port_id);
759 } else /* Configure network interface down */
760 rte_eth_dev_stop(port_id);
763 RTE_LOG(ERR, APP, "Failed to start port %d\n", port_id);
769 kni_alloc(uint8_t port_id)
773 struct rte_kni_conf conf;
774 struct kni_port_params **params = kni_port_params_array;
776 if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
779 params[port_id]->nb_kni = params[port_id]->nb_lcore_k ?
780 params[port_id]->nb_lcore_k : 1;
782 for (i = 0; i < params[port_id]->nb_kni; i++) {
783 /* Clear conf at first */
784 memset(&conf, 0, sizeof(conf));
785 if (params[port_id]->nb_lcore_k) {
786 snprintf(conf.name, RTE_KNI_NAMESIZE,
787 "vEth%u_%u", port_id, i);
788 conf.core_id = params[port_id]->lcore_k[i];
791 snprintf(conf.name, RTE_KNI_NAMESIZE,
793 conf.group_id = (uint16_t)port_id;
794 conf.mbuf_size = MAX_PACKET_SZ;
796 * The first KNI device associated to a port
797 * is the master, for multiple kernel thread
801 struct rte_kni_ops ops;
802 struct rte_eth_dev_info dev_info;
804 memset(&dev_info, 0, sizeof(dev_info));
805 rte_eth_dev_info_get(port_id, &dev_info);
806 conf.addr = dev_info.pci_dev->addr;
807 conf.id = dev_info.pci_dev->id;
809 memset(&ops, 0, sizeof(ops));
810 ops.port_id = port_id;
811 ops.change_mtu = kni_change_mtu;
812 ops.config_network_if = kni_config_network_interface;
814 kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
816 kni = rte_kni_alloc(pktmbuf_pool, &conf, NULL);
819 rte_exit(EXIT_FAILURE, "Fail to create kni for "
820 "port: %d\n", port_id);
821 params[port_id]->kni[i] = kni;
828 kni_free_kni(uint8_t port_id)
831 struct kni_port_params **p = kni_port_params_array;
833 if (port_id >= RTE_MAX_ETHPORTS || !p[port_id])
836 for (i = 0; i < p[port_id]->nb_kni; i++) {
837 if (rte_kni_release(p[port_id]->kni[i]))
838 printf("Fail to release kni\n");
839 p[port_id]->kni[i] = NULL;
841 rte_eth_dev_stop(port_id);
846 /* Initialise ports/queues etc. and start main loop on each core */
848 main(int argc, char** argv)
851 uint8_t nb_sys_ports, port;
854 /* Associate signal_hanlder function with USR signals */
855 signal(SIGUSR1, signal_handler);
856 signal(SIGUSR2, signal_handler);
857 signal(SIGRTMIN, signal_handler);
858 signal(SIGINT, signal_handler);
861 ret = rte_eal_init(argc, argv);
863 rte_exit(EXIT_FAILURE, "Could not initialise EAL (%d)\n", ret);
867 /* Parse application arguments (after the EAL ones) */
868 ret = parse_args(argc, argv);
870 rte_exit(EXIT_FAILURE, "Could not parse input parameters\n");
872 /* Create the mbuf pool */
873 pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
874 MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, rte_socket_id());
875 if (pktmbuf_pool == NULL) {
876 rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n");
880 /* Get number of ports found in scan */
881 nb_sys_ports = rte_eth_dev_count();
882 if (nb_sys_ports == 0)
883 rte_exit(EXIT_FAILURE, "No supported Ethernet device found\n");
885 /* Check if the configured port ID is valid */
886 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
887 if (kni_port_params_array[i] && i >= nb_sys_ports)
888 rte_exit(EXIT_FAILURE, "Configured invalid "
891 /* Initialize KNI subsystem */
894 /* Initialise each port */
895 for (port = 0; port < nb_sys_ports; port++) {
896 /* Skip ports that are not enabled */
897 if (!(ports_mask & (1 << port)))
901 if (port >= RTE_MAX_ETHPORTS)
902 rte_exit(EXIT_FAILURE, "Can not use more than "
903 "%d ports for kni\n", RTE_MAX_ETHPORTS);
907 check_all_ports_link_status(nb_sys_ports, ports_mask);
909 /* Launch per-lcore function on every lcore */
910 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
911 RTE_LCORE_FOREACH_SLAVE(i) {
912 if (rte_eal_wait_lcore(i) < 0)
916 /* Release resources */
917 for (port = 0; port < nb_sys_ports; port++) {
918 if (!(ports_mask & (1 << port)))
922 #ifdef RTE_LIBRTE_XEN_DOM0
925 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
926 if (kni_port_params_array[i]) {
927 rte_free(kni_port_params_array[i]);
928 kni_port_params_array[i] = NULL;