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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14 * notice, this list of conditions and the following disclaimer in
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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>
57 #include <rte_per_lcore.h>
58 #include <rte_launch.h>
59 #include <rte_atomic.h>
60 #include <rte_lcore.h>
61 #include <rte_branch_prediction.h>
62 #include <rte_interrupts.h>
63 #include <rte_bus_pci.h>
64 #include <rte_debug.h>
65 #include <rte_ether.h>
66 #include <rte_ethdev.h>
67 #include <rte_mempool.h>
69 #include <rte_string_fns.h>
70 #include <rte_cycles.h>
71 #include <rte_malloc.h>
74 /* Macros for printing using RTE_LOG */
75 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
77 /* Max size of a single packet */
78 #define MAX_PACKET_SZ 2048
80 /* Size of the data buffer in each mbuf */
81 #define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
83 /* Number of mbufs in mempool that is created */
84 #define NB_MBUF (8192 * 16)
86 /* How many packets to attempt to read from NIC in one go */
87 #define PKT_BURST_SZ 32
89 /* How many objects (mbufs) to keep in per-lcore mempool cache */
90 #define MEMPOOL_CACHE_SZ PKT_BURST_SZ
92 /* Number of RX ring descriptors */
95 /* Number of TX ring descriptors */
98 /* Total octets in ethernet header */
99 #define KNI_ENET_HEADER_SIZE 14
101 /* Total octets in the FCS */
102 #define KNI_ENET_FCS_SIZE 4
104 #define KNI_US_PER_SECOND 1000000
105 #define KNI_SECOND_PER_DAY 86400
107 #define KNI_MAX_KTHREAD 32
109 * Structure of port parameters
111 struct kni_port_params {
112 uint16_t port_id;/* Port ID */
113 unsigned lcore_rx; /* lcore ID for RX */
114 unsigned lcore_tx; /* lcore ID for TX */
115 uint32_t nb_lcore_k; /* Number of lcores for KNI multi kernel threads */
116 uint32_t nb_kni; /* Number of KNI devices to be created */
117 unsigned lcore_k[KNI_MAX_KTHREAD]; /* lcore ID list for kthreads */
118 struct rte_kni *kni[KNI_MAX_KTHREAD]; /* KNI context pointers */
119 } __rte_cache_aligned;
121 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
124 /* Options for configuring ethernet port */
125 static struct rte_eth_conf port_conf = {
127 .header_split = 0, /* Header Split disabled */
128 .hw_ip_checksum = 0, /* IP checksum offload disabled */
129 .hw_vlan_filter = 0, /* VLAN filtering disabled */
130 .jumbo_frame = 0, /* Jumbo Frame Support disabled */
131 .hw_strip_crc = 1, /* CRC stripped by hardware */
134 .mq_mode = ETH_MQ_TX_NONE,
138 /* Mempool for mbufs */
139 static struct rte_mempool * pktmbuf_pool = NULL;
141 /* Mask of enabled ports */
142 static uint32_t ports_mask = 0;
143 /* Ports set in promiscuous mode off by default. */
144 static int promiscuous_on = 0;
146 /* Structure type for recording kni interface specific stats */
147 struct kni_interface_stats {
148 /* number of pkts received from NIC, and sent to KNI */
151 /* number of pkts received from NIC, but failed to send to KNI */
154 /* number of pkts received from KNI, and sent to NIC */
157 /* number of pkts received from KNI, but failed to send to NIC */
161 /* kni device statistics array */
162 static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
164 static int kni_change_mtu(uint16_t port_id, unsigned int new_mtu);
165 static int kni_config_network_interface(uint16_t port_id, uint8_t if_up);
167 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
169 /* Print out statistics on packets handled */
175 printf("\n**KNI example application statistics**\n"
176 "====== ============== ============ ============ ============ ============\n"
177 " Port Lcore(RX/TX) rx_packets rx_dropped tx_packets tx_dropped\n"
178 "------ -------------- ------------ ------------ ------------ ------------\n");
179 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
180 if (!kni_port_params_array[i])
183 printf("%7d %10u/%2u %13"PRIu64" %13"PRIu64" %13"PRIu64" "
185 kni_port_params_array[i]->lcore_rx,
186 kni_port_params_array[i]->lcore_tx,
187 kni_stats[i].rx_packets,
188 kni_stats[i].rx_dropped,
189 kni_stats[i].tx_packets,
190 kni_stats[i].tx_dropped);
192 printf("====== ============== ============ ============ ============ ============\n");
195 /* Custom handling of signals to handle stats and kni processing */
197 signal_handler(int signum)
199 /* When we receive a USR1 signal, print stats */
200 if (signum == SIGUSR1) {
204 /* When we receive a USR2 signal, reset stats */
205 if (signum == SIGUSR2) {
206 memset(&kni_stats, 0, sizeof(kni_stats));
207 printf("\n**Statistics have been reset**\n");
211 /* When we receive a RTMIN or SIGINT signal, stop kni processing */
212 if (signum == SIGRTMIN || signum == SIGINT){
213 printf("SIGRTMIN is received, and the KNI processing is "
215 rte_atomic32_inc(&kni_stop);
221 kni_burst_free_mbufs(struct rte_mbuf **pkts, unsigned num)
228 for (i = 0; i < num; i++) {
229 rte_pktmbuf_free(pkts[i]);
235 * Interface to burst rx and enqueue mbufs into rx_q
238 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)
281 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
287 port_id = p->port_id;
288 for (i = 0; i < nb_kni; i++) {
289 /* Burst rx from kni */
290 num = rte_kni_rx_burst(p->kni[i], pkts_burst, PKT_BURST_SZ);
291 if (unlikely(num > PKT_BURST_SZ)) {
292 RTE_LOG(ERR, APP, "Error receiving from KNI\n");
295 /* Burst tx to eth */
296 nb_tx = rte_eth_tx_burst(port_id, 0, pkts_burst, (uint16_t)num);
297 kni_stats[port_id].tx_packets += nb_tx;
298 if (unlikely(nb_tx < num)) {
299 /* Free mbufs not tx to NIC */
300 kni_burst_free_mbufs(&pkts_burst[nb_tx], num - nb_tx);
301 kni_stats[port_id].tx_dropped += num - nb_tx;
307 main_loop(__rte_unused void *arg)
309 uint8_t i, nb_ports = rte_eth_dev_count();
311 const unsigned lcore_id = rte_lcore_id();
318 enum lcore_rxtx flag = LCORE_NONE;
320 for (i = 0; i < nb_ports; i++) {
321 if (!kni_port_params_array[i])
323 if (kni_port_params_array[i]->lcore_rx == (uint8_t)lcore_id) {
326 } else if (kni_port_params_array[i]->lcore_tx ==
333 if (flag == LCORE_RX) {
334 RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
335 kni_port_params_array[i]->lcore_rx,
336 kni_port_params_array[i]->port_id);
338 f_stop = rte_atomic32_read(&kni_stop);
341 kni_ingress(kni_port_params_array[i]);
343 } else if (flag == LCORE_TX) {
344 RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
345 kni_port_params_array[i]->lcore_tx,
346 kni_port_params_array[i]->port_id);
348 f_stop = rte_atomic32_read(&kni_stop);
351 kni_egress(kni_port_params_array[i]);
354 RTE_LOG(INFO, APP, "Lcore %u has nothing to do\n", lcore_id);
359 /* Display usage instructions */
361 print_usage(const char *prgname)
363 RTE_LOG(INFO, APP, "\nUsage: %s [EAL options] -- -p PORTMASK -P "
364 "[--config (port,lcore_rx,lcore_tx,lcore_kthread...)"
365 "[,(port,lcore_rx,lcore_tx,lcore_kthread...)]]\n"
366 " -p PORTMASK: hex bitmask of ports to use\n"
367 " -P : enable promiscuous mode\n"
368 " --config (port,lcore_rx,lcore_tx,lcore_kthread...): "
369 "port and lcore configurations\n",
373 /* Convert string to unsigned number. 0 is returned if error occurs */
375 parse_unsigned(const char *portmask)
380 num = strtoul(portmask, &end, 16);
381 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
384 return (uint32_t)num;
391 struct kni_port_params **p = kni_port_params_array;
393 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
396 RTE_LOG(DEBUG, APP, "Port ID: %d\n", p[i]->port_id);
397 RTE_LOG(DEBUG, APP, "Rx lcore ID: %u, Tx lcore ID: %u\n",
398 p[i]->lcore_rx, p[i]->lcore_tx);
399 for (j = 0; j < p[i]->nb_lcore_k; j++)
400 RTE_LOG(DEBUG, APP, "Kernel thread lcore ID: %u\n",
406 parse_config(const char *arg)
408 const char *p, *p0 = arg;
415 _NUM_FLD = KNI_MAX_KTHREAD + 3,
418 char *str_fld[_NUM_FLD];
419 unsigned long int_fld[_NUM_FLD];
420 uint16_t port_id, nb_kni_port_params = 0;
422 memset(&kni_port_params_array, 0, sizeof(kni_port_params_array));
423 while (((p = strchr(p0, '(')) != NULL) &&
424 nb_kni_port_params < RTE_MAX_ETHPORTS) {
426 if ((p0 = strchr(p, ')')) == NULL)
429 if (size >= sizeof(s)) {
430 printf("Invalid config parameters\n");
433 snprintf(s, sizeof(s), "%.*s", size, p);
434 nb_token = rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',');
435 if (nb_token <= FLD_LCORE_TX) {
436 printf("Invalid config parameters\n");
439 for (i = 0; i < nb_token; i++) {
441 int_fld[i] = strtoul(str_fld[i], &end, 0);
442 if (errno != 0 || end == str_fld[i]) {
443 printf("Invalid config parameters\n");
449 port_id = int_fld[i++];
450 if (port_id >= RTE_MAX_ETHPORTS) {
451 printf("Port ID %d could not exceed the maximum %d\n",
452 port_id, RTE_MAX_ETHPORTS);
455 if (kni_port_params_array[port_id]) {
456 printf("Port %d has been configured\n", port_id);
459 kni_port_params_array[port_id] =
460 rte_zmalloc("KNI_port_params",
461 sizeof(struct kni_port_params), RTE_CACHE_LINE_SIZE);
462 kni_port_params_array[port_id]->port_id = port_id;
463 kni_port_params_array[port_id]->lcore_rx =
464 (uint8_t)int_fld[i++];
465 kni_port_params_array[port_id]->lcore_tx =
466 (uint8_t)int_fld[i++];
467 if (kni_port_params_array[port_id]->lcore_rx >= RTE_MAX_LCORE ||
468 kni_port_params_array[port_id]->lcore_tx >= RTE_MAX_LCORE) {
469 printf("lcore_rx %u or lcore_tx %u ID could not "
470 "exceed the maximum %u\n",
471 kni_port_params_array[port_id]->lcore_rx,
472 kni_port_params_array[port_id]->lcore_tx,
473 (unsigned)RTE_MAX_LCORE);
476 for (j = 0; i < nb_token && j < KNI_MAX_KTHREAD; i++, j++)
477 kni_port_params_array[port_id]->lcore_k[j] =
479 kni_port_params_array[port_id]->nb_lcore_k = j;
486 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
487 if (kni_port_params_array[i]) {
488 rte_free(kni_port_params_array[i]);
489 kni_port_params_array[i] = NULL;
497 validate_parameters(uint32_t portmask)
502 printf("No port configured in port mask\n");
506 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
507 if (((portmask & (1 << i)) && !kni_port_params_array[i]) ||
508 (!(portmask & (1 << i)) && kni_port_params_array[i]))
509 rte_exit(EXIT_FAILURE, "portmask is not consistent "
510 "to port ids specified in --config\n");
512 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
513 (unsigned)(kni_port_params_array[i]->lcore_rx)))
514 rte_exit(EXIT_FAILURE, "lcore id %u for "
515 "port %d receiving not enabled\n",
516 kni_port_params_array[i]->lcore_rx,
517 kni_port_params_array[i]->port_id);
519 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
520 (unsigned)(kni_port_params_array[i]->lcore_tx)))
521 rte_exit(EXIT_FAILURE, "lcore id %u for "
522 "port %d transmitting not enabled\n",
523 kni_port_params_array[i]->lcore_tx,
524 kni_port_params_array[i]->port_id);
531 #define CMDLINE_OPT_CONFIG "config"
533 /* Parse the arguments given in the command line of the application */
535 parse_args(int argc, char **argv)
537 int opt, longindex, ret = 0;
538 const char *prgname = argv[0];
539 static struct option longopts[] = {
540 {CMDLINE_OPT_CONFIG, required_argument, NULL, 0},
544 /* Disable printing messages within getopt() */
547 /* Parse command line */
548 while ((opt = getopt_long(argc, argv, "p:P", longopts,
549 &longindex)) != EOF) {
552 ports_mask = parse_unsigned(optarg);
558 if (!strncmp(longopts[longindex].name,
560 sizeof(CMDLINE_OPT_CONFIG))) {
561 ret = parse_config(optarg);
563 printf("Invalid config\n");
564 print_usage(prgname);
570 print_usage(prgname);
571 rte_exit(EXIT_FAILURE, "Invalid option specified\n");
575 /* Check that options were parsed ok */
576 if (validate_parameters(ports_mask) < 0) {
577 print_usage(prgname);
578 rte_exit(EXIT_FAILURE, "Invalid parameters\n");
584 /* Initialize KNI subsystem */
588 unsigned int num_of_kni_ports = 0, i;
589 struct kni_port_params **params = kni_port_params_array;
591 /* Calculate the maximum number of KNI interfaces that will be used */
592 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
593 if (kni_port_params_array[i]) {
594 num_of_kni_ports += (params[i]->nb_lcore_k ?
595 params[i]->nb_lcore_k : 1);
599 /* Invoke rte KNI init to preallocate the ports */
600 rte_kni_init(num_of_kni_ports);
603 /* Initialise a single port on an Ethernet device */
605 init_port(uint16_t port)
608 uint16_t nb_rxd = NB_RXD;
609 uint16_t nb_txd = NB_TXD;
611 /* Initialise device and RX/TX queues */
612 RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
614 ret = rte_eth_dev_configure(port, 1, 1, &port_conf);
616 rte_exit(EXIT_FAILURE, "Could not configure port%u (%d)\n",
617 (unsigned)port, ret);
619 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port, &nb_rxd, &nb_txd);
621 rte_exit(EXIT_FAILURE, "Could not adjust number of descriptors "
622 "for port%u (%d)\n", (unsigned)port, ret);
624 ret = rte_eth_rx_queue_setup(port, 0, nb_rxd,
625 rte_eth_dev_socket_id(port), NULL, pktmbuf_pool);
627 rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
628 "port%u (%d)\n", (unsigned)port, ret);
630 ret = rte_eth_tx_queue_setup(port, 0, nb_txd,
631 rte_eth_dev_socket_id(port), NULL);
633 rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
634 "port%u (%d)\n", (unsigned)port, ret);
636 ret = rte_eth_dev_start(port);
638 rte_exit(EXIT_FAILURE, "Could not start port%u (%d)\n",
639 (unsigned)port, ret);
642 rte_eth_promiscuous_enable(port);
645 /* Check the link status of all ports in up to 9s, and print them finally */
647 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
649 #define CHECK_INTERVAL 100 /* 100ms */
650 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
652 uint8_t count, all_ports_up, print_flag = 0;
653 struct rte_eth_link link;
655 printf("\nChecking link status\n");
657 for (count = 0; count <= MAX_CHECK_TIME; count++) {
659 for (portid = 0; portid < port_num; portid++) {
660 if ((port_mask & (1 << portid)) == 0)
662 memset(&link, 0, sizeof(link));
663 rte_eth_link_get_nowait(portid, &link);
664 /* print link status if flag set */
665 if (print_flag == 1) {
666 if (link.link_status)
668 "Port%d Link Up - speed %uMbps - %s\n",
669 portid, link.link_speed,
670 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
671 ("full-duplex") : ("half-duplex\n"));
673 printf("Port %d Link Down\n", portid);
676 /* clear all_ports_up flag if any link down */
677 if (link.link_status == ETH_LINK_DOWN) {
682 /* after finally printing all link status, get out */
686 if (all_ports_up == 0) {
689 rte_delay_ms(CHECK_INTERVAL);
692 /* set the print_flag if all ports up or timeout */
693 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
700 /* Callback for request of changing MTU */
702 kni_change_mtu(uint16_t port_id, unsigned int new_mtu)
705 struct rte_eth_conf conf;
707 if (port_id >= rte_eth_dev_count()) {
708 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
712 RTE_LOG(INFO, APP, "Change MTU of port %d to %u\n", port_id, new_mtu);
714 /* Stop specific port */
715 rte_eth_dev_stop(port_id);
717 memcpy(&conf, &port_conf, sizeof(conf));
719 if (new_mtu > ETHER_MAX_LEN)
720 conf.rxmode.jumbo_frame = 1;
722 conf.rxmode.jumbo_frame = 0;
724 /* mtu + length of header + length of FCS = max pkt length */
725 conf.rxmode.max_rx_pkt_len = new_mtu + KNI_ENET_HEADER_SIZE +
727 ret = rte_eth_dev_configure(port_id, 1, 1, &conf);
729 RTE_LOG(ERR, APP, "Fail to reconfigure port %d\n", port_id);
733 /* Restart specific port */
734 ret = rte_eth_dev_start(port_id);
736 RTE_LOG(ERR, APP, "Fail to restart port %d\n", port_id);
743 /* Callback for request of configuring network interface up/down */
745 kni_config_network_interface(uint16_t port_id, uint8_t if_up)
749 if (port_id >= rte_eth_dev_count() || port_id >= RTE_MAX_ETHPORTS) {
750 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
754 RTE_LOG(INFO, APP, "Configure network interface of %d %s\n",
755 port_id, if_up ? "up" : "down");
757 if (if_up != 0) { /* Configure network interface up */
758 rte_eth_dev_stop(port_id);
759 ret = rte_eth_dev_start(port_id);
760 } else /* Configure network interface down */
761 rte_eth_dev_stop(port_id);
764 RTE_LOG(ERR, APP, "Failed to start port %d\n", port_id);
770 kni_alloc(uint16_t port_id)
774 struct rte_kni_conf conf;
775 struct kni_port_params **params = kni_port_params_array;
777 if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
780 params[port_id]->nb_kni = params[port_id]->nb_lcore_k ?
781 params[port_id]->nb_lcore_k : 1;
783 for (i = 0; i < params[port_id]->nb_kni; i++) {
784 /* Clear conf at first */
785 memset(&conf, 0, sizeof(conf));
786 if (params[port_id]->nb_lcore_k) {
787 snprintf(conf.name, RTE_KNI_NAMESIZE,
788 "vEth%u_%u", port_id, i);
789 conf.core_id = params[port_id]->lcore_k[i];
792 snprintf(conf.name, RTE_KNI_NAMESIZE,
794 conf.group_id = port_id;
795 conf.mbuf_size = MAX_PACKET_SZ;
797 * The first KNI device associated to a port
798 * is the master, for multiple kernel thread
802 struct rte_kni_ops ops;
803 struct rte_eth_dev_info dev_info;
805 memset(&dev_info, 0, sizeof(dev_info));
806 rte_eth_dev_info_get(port_id, &dev_info);
808 if (dev_info.pci_dev) {
809 conf.addr = dev_info.pci_dev->addr;
810 conf.id = dev_info.pci_dev->id;
813 memset(&ops, 0, sizeof(ops));
814 ops.port_id = port_id;
815 ops.change_mtu = kni_change_mtu;
816 ops.config_network_if = kni_config_network_interface;
818 kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
820 kni = rte_kni_alloc(pktmbuf_pool, &conf, NULL);
823 rte_exit(EXIT_FAILURE, "Fail to create kni for "
824 "port: %d\n", port_id);
825 params[port_id]->kni[i] = kni;
832 kni_free_kni(uint16_t port_id)
835 struct kni_port_params **p = kni_port_params_array;
837 if (port_id >= RTE_MAX_ETHPORTS || !p[port_id])
840 for (i = 0; i < p[port_id]->nb_kni; i++) {
841 if (rte_kni_release(p[port_id]->kni[i]))
842 printf("Fail to release kni\n");
843 p[port_id]->kni[i] = NULL;
845 rte_eth_dev_stop(port_id);
850 /* Initialise ports/queues etc. and start main loop on each core */
852 main(int argc, char** argv)
855 uint16_t nb_sys_ports, port;
858 /* Associate signal_hanlder function with USR signals */
859 signal(SIGUSR1, signal_handler);
860 signal(SIGUSR2, signal_handler);
861 signal(SIGRTMIN, signal_handler);
862 signal(SIGINT, signal_handler);
865 ret = rte_eal_init(argc, argv);
867 rte_exit(EXIT_FAILURE, "Could not initialise EAL (%d)\n", ret);
871 /* Parse application arguments (after the EAL ones) */
872 ret = parse_args(argc, argv);
874 rte_exit(EXIT_FAILURE, "Could not parse input parameters\n");
876 /* Create the mbuf pool */
877 pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
878 MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, rte_socket_id());
879 if (pktmbuf_pool == NULL) {
880 rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n");
884 /* Get number of ports found in scan */
885 nb_sys_ports = rte_eth_dev_count();
886 if (nb_sys_ports == 0)
887 rte_exit(EXIT_FAILURE, "No supported Ethernet device found\n");
889 /* Check if the configured port ID is valid */
890 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
891 if (kni_port_params_array[i] && i >= nb_sys_ports)
892 rte_exit(EXIT_FAILURE, "Configured invalid "
895 /* Initialize KNI subsystem */
898 /* Initialise each port */
899 for (port = 0; port < nb_sys_ports; port++) {
900 /* Skip ports that are not enabled */
901 if (!(ports_mask & (1 << port)))
905 if (port >= RTE_MAX_ETHPORTS)
906 rte_exit(EXIT_FAILURE, "Can not use more than "
907 "%d ports for kni\n", RTE_MAX_ETHPORTS);
911 check_all_ports_link_status(nb_sys_ports, ports_mask);
913 /* Launch per-lcore function on every lcore */
914 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
915 RTE_LCORE_FOREACH_SLAVE(i) {
916 if (rte_eal_wait_lcore(i) < 0)
920 /* Release resources */
921 for (port = 0; port < nb_sys_ports; port++) {
922 if (!(ports_mask & (1 << port)))
926 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
927 if (kni_port_params_array[i]) {
928 rte_free(kni_port_params_array[i]);
929 kni_port_params_array[i] = NULL;