1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
10 #include <sys/queue.h>
15 #include <netinet/in.h>
17 #include <linux/if_tun.h>
19 #include <sys/ioctl.h>
23 #include <rte_common.h>
25 #include <rte_memory.h>
26 #include <rte_memcpy.h>
28 #include <rte_per_lcore.h>
29 #include <rte_launch.h>
30 #include <rte_atomic.h>
31 #include <rte_lcore.h>
32 #include <rte_branch_prediction.h>
33 #include <rte_interrupts.h>
34 #include <rte_bus_pci.h>
35 #include <rte_debug.h>
36 #include <rte_ether.h>
37 #include <rte_ethdev.h>
38 #include <rte_mempool.h>
40 #include <rte_string_fns.h>
41 #include <rte_cycles.h>
42 #include <rte_malloc.h>
45 /* Macros for printing using RTE_LOG */
46 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1
48 /* Max size of a single packet */
49 #define MAX_PACKET_SZ 2048
51 /* Size of the data buffer in each mbuf */
52 #define MBUF_DATA_SZ (MAX_PACKET_SZ + RTE_PKTMBUF_HEADROOM)
54 /* Number of mbufs in mempool that is created */
55 #define NB_MBUF (8192 * 16)
57 /* How many packets to attempt to read from NIC in one go */
58 #define PKT_BURST_SZ 32
60 /* How many objects (mbufs) to keep in per-lcore mempool cache */
61 #define MEMPOOL_CACHE_SZ PKT_BURST_SZ
63 /* Number of RX ring descriptors */
66 /* Number of TX ring descriptors */
69 /* Total octets in ethernet header */
70 #define KNI_ENET_HEADER_SIZE 14
72 /* Total octets in the FCS */
73 #define KNI_ENET_FCS_SIZE 4
75 #define KNI_US_PER_SECOND 1000000
76 #define KNI_SECOND_PER_DAY 86400
78 #define KNI_MAX_KTHREAD 32
80 * Structure of port parameters
82 struct kni_port_params {
83 uint16_t port_id;/* Port ID */
84 unsigned lcore_rx; /* lcore ID for RX */
85 unsigned lcore_tx; /* lcore ID for TX */
86 uint32_t nb_lcore_k; /* Number of lcores for KNI multi kernel threads */
87 uint32_t nb_kni; /* Number of KNI devices to be created */
88 unsigned lcore_k[KNI_MAX_KTHREAD]; /* lcore ID list for kthreads */
89 struct rte_kni *kni[KNI_MAX_KTHREAD]; /* KNI context pointers */
90 } __rte_cache_aligned;
92 static struct kni_port_params *kni_port_params_array[RTE_MAX_ETHPORTS];
95 /* Options for configuring ethernet port */
96 static struct rte_eth_conf port_conf = {
98 .mq_mode = ETH_MQ_TX_NONE,
102 /* Mempool for mbufs */
103 static struct rte_mempool * pktmbuf_pool = NULL;
105 /* Mask of enabled ports */
106 static uint32_t ports_mask = 0;
107 /* Ports set in promiscuous mode off by default. */
108 static int promiscuous_on = 0;
109 /* Monitor link status continually. off by default. */
110 static int monitor_links;
112 /* Structure type for recording kni interface specific stats */
113 struct kni_interface_stats {
114 /* number of pkts received from NIC, and sent to KNI */
117 /* number of pkts received from NIC, but failed to send to KNI */
120 /* number of pkts received from KNI, and sent to NIC */
123 /* number of pkts received from KNI, but failed to send to NIC */
127 /* kni device statistics array */
128 static struct kni_interface_stats kni_stats[RTE_MAX_ETHPORTS];
130 static int kni_change_mtu(uint16_t port_id, unsigned int new_mtu);
131 static int kni_config_network_interface(uint16_t port_id, uint8_t if_up);
132 static int kni_config_mac_address(uint16_t port_id, uint8_t mac_addr[]);
134 static rte_atomic32_t kni_stop = RTE_ATOMIC32_INIT(0);
135 static rte_atomic32_t kni_pause = RTE_ATOMIC32_INIT(0);
137 /* Print out statistics on packets handled */
143 printf("\n**KNI example application statistics**\n"
144 "====== ============== ============ ============ ============ ============\n"
145 " Port Lcore(RX/TX) rx_packets rx_dropped tx_packets tx_dropped\n"
146 "------ -------------- ------------ ------------ ------------ ------------\n");
147 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
148 if (!kni_port_params_array[i])
151 printf("%7d %10u/%2u %13"PRIu64" %13"PRIu64" %13"PRIu64" "
153 kni_port_params_array[i]->lcore_rx,
154 kni_port_params_array[i]->lcore_tx,
155 kni_stats[i].rx_packets,
156 kni_stats[i].rx_dropped,
157 kni_stats[i].tx_packets,
158 kni_stats[i].tx_dropped);
160 printf("====== ============== ============ ============ ============ ============\n");
165 /* Custom handling of signals to handle stats and kni processing */
167 signal_handler(int signum)
169 /* When we receive a USR1 signal, print stats */
170 if (signum == SIGUSR1) {
174 /* When we receive a USR2 signal, reset stats */
175 if (signum == SIGUSR2) {
176 memset(&kni_stats, 0, sizeof(kni_stats));
177 printf("\n** Statistics have been reset **\n");
182 * When we receive a RTMIN or SIGINT or SIGTERM signal,
183 * stop kni processing
185 if (signum == SIGRTMIN || signum == SIGINT || signum == SIGTERM) {
186 printf("\nSIGRTMIN/SIGINT/SIGTERM received. "
187 "KNI processing stopping.\n");
188 rte_atomic32_inc(&kni_stop);
194 kni_burst_free_mbufs(struct rte_mbuf **pkts, unsigned num)
201 for (i = 0; i < num; i++) {
202 rte_pktmbuf_free(pkts[i]);
208 * Interface to burst rx and enqueue mbufs into rx_q
211 kni_ingress(struct kni_port_params *p)
217 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
223 port_id = p->port_id;
224 for (i = 0; i < nb_kni; i++) {
225 /* Burst rx from eth */
226 nb_rx = rte_eth_rx_burst(port_id, 0, pkts_burst, PKT_BURST_SZ);
227 if (unlikely(nb_rx > PKT_BURST_SZ)) {
228 RTE_LOG(ERR, APP, "Error receiving from eth\n");
231 /* Burst tx to kni */
232 num = rte_kni_tx_burst(p->kni[i], pkts_burst, nb_rx);
234 kni_stats[port_id].rx_packets += num;
236 rte_kni_handle_request(p->kni[i]);
237 if (unlikely(num < nb_rx)) {
238 /* Free mbufs not tx to kni interface */
239 kni_burst_free_mbufs(&pkts_burst[num], nb_rx - num);
240 kni_stats[port_id].rx_dropped += nb_rx - num;
246 * Interface to dequeue mbufs from tx_q and burst tx
249 kni_egress(struct kni_port_params *p)
255 struct rte_mbuf *pkts_burst[PKT_BURST_SZ];
261 port_id = p->port_id;
262 for (i = 0; i < nb_kni; i++) {
263 /* Burst rx from kni */
264 num = rte_kni_rx_burst(p->kni[i], pkts_burst, PKT_BURST_SZ);
265 if (unlikely(num > PKT_BURST_SZ)) {
266 RTE_LOG(ERR, APP, "Error receiving from KNI\n");
269 /* Burst tx to eth */
270 nb_tx = rte_eth_tx_burst(port_id, 0, pkts_burst, (uint16_t)num);
272 kni_stats[port_id].tx_packets += nb_tx;
273 if (unlikely(nb_tx < num)) {
274 /* Free mbufs not tx to NIC */
275 kni_burst_free_mbufs(&pkts_burst[nb_tx], num - nb_tx);
276 kni_stats[port_id].tx_dropped += num - nb_tx;
282 main_loop(__rte_unused void *arg)
287 const unsigned lcore_id = rte_lcore_id();
294 enum lcore_rxtx flag = LCORE_NONE;
296 RTE_ETH_FOREACH_DEV(i) {
297 if (!kni_port_params_array[i])
299 if (kni_port_params_array[i]->lcore_rx == (uint8_t)lcore_id) {
302 } else if (kni_port_params_array[i]->lcore_tx ==
309 if (flag == LCORE_RX) {
310 RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
311 kni_port_params_array[i]->lcore_rx,
312 kni_port_params_array[i]->port_id);
314 f_stop = rte_atomic32_read(&kni_stop);
315 f_pause = rte_atomic32_read(&kni_pause);
320 kni_ingress(kni_port_params_array[i]);
322 } else if (flag == LCORE_TX) {
323 RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
324 kni_port_params_array[i]->lcore_tx,
325 kni_port_params_array[i]->port_id);
327 f_stop = rte_atomic32_read(&kni_stop);
328 f_pause = rte_atomic32_read(&kni_pause);
333 kni_egress(kni_port_params_array[i]);
336 RTE_LOG(INFO, APP, "Lcore %u has nothing to do\n", lcore_id);
341 /* Display usage instructions */
343 print_usage(const char *prgname)
345 RTE_LOG(INFO, APP, "\nUsage: %s [EAL options] -- -p PORTMASK -P -m "
346 "[--config (port,lcore_rx,lcore_tx,lcore_kthread...)"
347 "[,(port,lcore_rx,lcore_tx,lcore_kthread...)]]\n"
348 " -p PORTMASK: hex bitmask of ports to use\n"
349 " -P : enable promiscuous mode\n"
350 " -m : enable monitoring of port carrier state\n"
351 " --config (port,lcore_rx,lcore_tx,lcore_kthread...): "
352 "port and lcore configurations\n",
356 /* Convert string to unsigned number. 0 is returned if error occurs */
358 parse_unsigned(const char *portmask)
363 num = strtoul(portmask, &end, 16);
364 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
367 return (uint32_t)num;
374 struct kni_port_params **p = kni_port_params_array;
376 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
379 RTE_LOG(DEBUG, APP, "Port ID: %d\n", p[i]->port_id);
380 RTE_LOG(DEBUG, APP, "Rx lcore ID: %u, Tx lcore ID: %u\n",
381 p[i]->lcore_rx, p[i]->lcore_tx);
382 for (j = 0; j < p[i]->nb_lcore_k; j++)
383 RTE_LOG(DEBUG, APP, "Kernel thread lcore ID: %u\n",
389 parse_config(const char *arg)
391 const char *p, *p0 = arg;
398 _NUM_FLD = KNI_MAX_KTHREAD + 3,
401 char *str_fld[_NUM_FLD];
402 unsigned long int_fld[_NUM_FLD];
403 uint16_t port_id, nb_kni_port_params = 0;
405 memset(&kni_port_params_array, 0, sizeof(kni_port_params_array));
406 while (((p = strchr(p0, '(')) != NULL) &&
407 nb_kni_port_params < RTE_MAX_ETHPORTS) {
409 if ((p0 = strchr(p, ')')) == NULL)
412 if (size >= sizeof(s)) {
413 printf("Invalid config parameters\n");
416 snprintf(s, sizeof(s), "%.*s", size, p);
417 nb_token = rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',');
418 if (nb_token <= FLD_LCORE_TX) {
419 printf("Invalid config parameters\n");
422 for (i = 0; i < nb_token; i++) {
424 int_fld[i] = strtoul(str_fld[i], &end, 0);
425 if (errno != 0 || end == str_fld[i]) {
426 printf("Invalid config parameters\n");
432 port_id = int_fld[i++];
433 if (port_id >= RTE_MAX_ETHPORTS) {
434 printf("Port ID %d could not exceed the maximum %d\n",
435 port_id, RTE_MAX_ETHPORTS);
438 if (kni_port_params_array[port_id]) {
439 printf("Port %d has been configured\n", port_id);
442 kni_port_params_array[port_id] =
443 rte_zmalloc("KNI_port_params",
444 sizeof(struct kni_port_params), RTE_CACHE_LINE_SIZE);
445 kni_port_params_array[port_id]->port_id = port_id;
446 kni_port_params_array[port_id]->lcore_rx =
447 (uint8_t)int_fld[i++];
448 kni_port_params_array[port_id]->lcore_tx =
449 (uint8_t)int_fld[i++];
450 if (kni_port_params_array[port_id]->lcore_rx >= RTE_MAX_LCORE ||
451 kni_port_params_array[port_id]->lcore_tx >= RTE_MAX_LCORE) {
452 printf("lcore_rx %u or lcore_tx %u ID could not "
453 "exceed the maximum %u\n",
454 kni_port_params_array[port_id]->lcore_rx,
455 kni_port_params_array[port_id]->lcore_tx,
456 (unsigned)RTE_MAX_LCORE);
459 for (j = 0; i < nb_token && j < KNI_MAX_KTHREAD; i++, j++)
460 kni_port_params_array[port_id]->lcore_k[j] =
462 kni_port_params_array[port_id]->nb_lcore_k = j;
469 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
470 if (kni_port_params_array[i]) {
471 rte_free(kni_port_params_array[i]);
472 kni_port_params_array[i] = NULL;
480 validate_parameters(uint32_t portmask)
485 printf("No port configured in port mask\n");
489 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
490 if (((portmask & (1 << i)) && !kni_port_params_array[i]) ||
491 (!(portmask & (1 << i)) && kni_port_params_array[i]))
492 rte_exit(EXIT_FAILURE, "portmask is not consistent "
493 "to port ids specified in --config\n");
495 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
496 (unsigned)(kni_port_params_array[i]->lcore_rx)))
497 rte_exit(EXIT_FAILURE, "lcore id %u for "
498 "port %d receiving not enabled\n",
499 kni_port_params_array[i]->lcore_rx,
500 kni_port_params_array[i]->port_id);
502 if (kni_port_params_array[i] && !rte_lcore_is_enabled(\
503 (unsigned)(kni_port_params_array[i]->lcore_tx)))
504 rte_exit(EXIT_FAILURE, "lcore id %u for "
505 "port %d transmitting not enabled\n",
506 kni_port_params_array[i]->lcore_tx,
507 kni_port_params_array[i]->port_id);
514 #define CMDLINE_OPT_CONFIG "config"
516 /* Parse the arguments given in the command line of the application */
518 parse_args(int argc, char **argv)
520 int opt, longindex, ret = 0;
521 const char *prgname = argv[0];
522 static struct option longopts[] = {
523 {CMDLINE_OPT_CONFIG, required_argument, NULL, 0},
527 /* Disable printing messages within getopt() */
530 /* Parse command line */
531 while ((opt = getopt_long(argc, argv, "p:Pm", longopts,
532 &longindex)) != EOF) {
535 ports_mask = parse_unsigned(optarg);
544 if (!strncmp(longopts[longindex].name,
546 sizeof(CMDLINE_OPT_CONFIG))) {
547 ret = parse_config(optarg);
549 printf("Invalid config\n");
550 print_usage(prgname);
556 print_usage(prgname);
557 rte_exit(EXIT_FAILURE, "Invalid option specified\n");
561 /* Check that options were parsed ok */
562 if (validate_parameters(ports_mask) < 0) {
563 print_usage(prgname);
564 rte_exit(EXIT_FAILURE, "Invalid parameters\n");
570 /* Initialize KNI subsystem */
574 unsigned int num_of_kni_ports = 0, i;
575 struct kni_port_params **params = kni_port_params_array;
577 /* Calculate the maximum number of KNI interfaces that will be used */
578 for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
579 if (kni_port_params_array[i]) {
580 num_of_kni_ports += (params[i]->nb_lcore_k ?
581 params[i]->nb_lcore_k : 1);
585 /* Invoke rte KNI init to preallocate the ports */
586 rte_kni_init(num_of_kni_ports);
589 /* Initialise a single port on an Ethernet device */
591 init_port(uint16_t port)
594 uint16_t nb_rxd = NB_RXD;
595 uint16_t nb_txd = NB_TXD;
596 struct rte_eth_dev_info dev_info;
597 struct rte_eth_rxconf rxq_conf;
598 struct rte_eth_txconf txq_conf;
599 struct rte_eth_conf local_port_conf = port_conf;
601 /* Initialise device and RX/TX queues */
602 RTE_LOG(INFO, APP, "Initialising port %u ...\n", (unsigned)port);
605 ret = rte_eth_dev_info_get(port, &dev_info);
607 rte_exit(EXIT_FAILURE,
608 "Error during getting device (port %u) info: %s\n",
609 port, strerror(-ret));
611 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
612 local_port_conf.txmode.offloads |=
613 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
614 ret = rte_eth_dev_configure(port, 1, 1, &local_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 rxq_conf = dev_info.default_rxconf;
625 rxq_conf.offloads = local_port_conf.rxmode.offloads;
626 ret = rte_eth_rx_queue_setup(port, 0, nb_rxd,
627 rte_eth_dev_socket_id(port), &rxq_conf, pktmbuf_pool);
629 rte_exit(EXIT_FAILURE, "Could not setup up RX queue for "
630 "port%u (%d)\n", (unsigned)port, ret);
632 txq_conf = dev_info.default_txconf;
633 txq_conf.offloads = local_port_conf.txmode.offloads;
634 ret = rte_eth_tx_queue_setup(port, 0, nb_txd,
635 rte_eth_dev_socket_id(port), &txq_conf);
637 rte_exit(EXIT_FAILURE, "Could not setup up TX queue for "
638 "port%u (%d)\n", (unsigned)port, ret);
640 ret = rte_eth_dev_start(port);
642 rte_exit(EXIT_FAILURE, "Could not start port%u (%d)\n",
643 (unsigned)port, ret);
645 if (promiscuous_on) {
646 ret = rte_eth_promiscuous_enable(port);
648 rte_exit(EXIT_FAILURE,
649 "Could not enable promiscuous mode for port%u: %s\n",
650 port, rte_strerror(-ret));
654 /* Check the link status of all ports in up to 9s, and print them finally */
656 check_all_ports_link_status(uint32_t port_mask)
658 #define CHECK_INTERVAL 100 /* 100ms */
659 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
661 uint8_t count, all_ports_up, print_flag = 0;
662 struct rte_eth_link link;
665 printf("\nChecking link status\n");
667 for (count = 0; count <= MAX_CHECK_TIME; count++) {
669 RTE_ETH_FOREACH_DEV(portid) {
670 if ((port_mask & (1 << portid)) == 0)
672 memset(&link, 0, sizeof(link));
673 ret = rte_eth_link_get_nowait(portid, &link);
677 printf("Port %u link get failed: %s\n",
678 portid, rte_strerror(-ret));
681 /* print link status if flag set */
682 if (print_flag == 1) {
683 if (link.link_status)
685 "Port%d Link Up - speed %uMbps - %s\n",
686 portid, link.link_speed,
687 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
688 ("full-duplex") : ("half-duplex"));
690 printf("Port %d Link Down\n", portid);
693 /* clear all_ports_up flag if any link down */
694 if (link.link_status == ETH_LINK_DOWN) {
699 /* after finally printing all link status, get out */
703 if (all_ports_up == 0) {
706 rte_delay_ms(CHECK_INTERVAL);
709 /* set the print_flag if all ports up or timeout */
710 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
718 log_link_state(struct rte_kni *kni, int prev, struct rte_eth_link *link)
720 if (kni == NULL || link == NULL)
723 if (prev == ETH_LINK_DOWN && link->link_status == ETH_LINK_UP) {
724 RTE_LOG(INFO, APP, "%s NIC Link is Up %d Mbps %s %s.\n",
725 rte_kni_get_name(kni),
727 link->link_autoneg ? "(AutoNeg)" : "(Fixed)",
728 link->link_duplex ? "Full Duplex" : "Half Duplex");
729 } else if (prev == ETH_LINK_UP && link->link_status == ETH_LINK_DOWN) {
730 RTE_LOG(INFO, APP, "%s NIC Link is Down.\n",
731 rte_kni_get_name(kni));
736 * Monitor the link status of all ports and update the
737 * corresponding KNI interface(s)
740 monitor_all_ports_link_status(void *arg)
743 struct rte_eth_link link;
745 struct kni_port_params **p = kni_port_params_array;
750 while (monitor_links) {
752 RTE_ETH_FOREACH_DEV(portid) {
753 if ((ports_mask & (1 << portid)) == 0)
755 memset(&link, 0, sizeof(link));
756 ret = rte_eth_link_get_nowait(portid, &link);
759 "Get link failed (port %u): %s\n",
760 portid, rte_strerror(-ret));
763 for (i = 0; i < p[portid]->nb_kni; i++) {
764 prev = rte_kni_update_link(p[portid]->kni[i],
766 log_link_state(p[portid]->kni[i], prev, &link);
774 kni_change_mtu_(uint16_t port_id, unsigned int new_mtu)
777 uint16_t nb_rxd = NB_RXD;
778 uint16_t nb_txd = NB_TXD;
779 struct rte_eth_conf conf;
780 struct rte_eth_dev_info dev_info;
781 struct rte_eth_rxconf rxq_conf;
782 struct rte_eth_txconf txq_conf;
784 if (!rte_eth_dev_is_valid_port(port_id)) {
785 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
789 RTE_LOG(INFO, APP, "Change MTU of port %d to %u\n", port_id, new_mtu);
791 /* Stop specific port */
792 rte_eth_dev_stop(port_id);
794 memcpy(&conf, &port_conf, sizeof(conf));
796 if (new_mtu > RTE_ETHER_MAX_LEN)
797 conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
799 conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
801 /* mtu + length of header + length of FCS = max pkt length */
802 conf.rxmode.max_rx_pkt_len = new_mtu + KNI_ENET_HEADER_SIZE +
804 ret = rte_eth_dev_configure(port_id, 1, 1, &conf);
806 RTE_LOG(ERR, APP, "Fail to reconfigure port %d\n", port_id);
810 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd, &nb_txd);
812 rte_exit(EXIT_FAILURE, "Could not adjust number of descriptors "
813 "for port%u (%d)\n", (unsigned int)port_id,
816 ret = rte_eth_dev_info_get(port_id, &dev_info);
819 "Error during getting device (port %u) info: %s\n",
820 port_id, strerror(-ret));
825 rxq_conf = dev_info.default_rxconf;
826 rxq_conf.offloads = conf.rxmode.offloads;
827 ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
828 rte_eth_dev_socket_id(port_id), &rxq_conf, pktmbuf_pool);
830 RTE_LOG(ERR, APP, "Fail to setup Rx queue of port %d\n",
835 txq_conf = dev_info.default_txconf;
836 txq_conf.offloads = conf.txmode.offloads;
837 ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd,
838 rte_eth_dev_socket_id(port_id), &txq_conf);
840 RTE_LOG(ERR, APP, "Fail to setup Tx queue of port %d\n",
845 /* Restart specific port */
846 ret = rte_eth_dev_start(port_id);
848 RTE_LOG(ERR, APP, "Fail to restart port %d\n", port_id);
855 /* Callback for request of changing MTU */
857 kni_change_mtu(uint16_t port_id, unsigned int new_mtu)
861 rte_atomic32_inc(&kni_pause);
862 ret = kni_change_mtu_(port_id, new_mtu);
863 rte_atomic32_dec(&kni_pause);
868 /* Callback for request of configuring network interface up/down */
870 kni_config_network_interface(uint16_t port_id, uint8_t if_up)
874 if (!rte_eth_dev_is_valid_port(port_id)) {
875 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
879 RTE_LOG(INFO, APP, "Configure network interface of %d %s\n",
880 port_id, if_up ? "up" : "down");
882 rte_atomic32_inc(&kni_pause);
884 if (if_up != 0) { /* Configure network interface up */
885 rte_eth_dev_stop(port_id);
886 ret = rte_eth_dev_start(port_id);
887 } else /* Configure network interface down */
888 rte_eth_dev_stop(port_id);
890 rte_atomic32_dec(&kni_pause);
893 RTE_LOG(ERR, APP, "Failed to start port %d\n", port_id);
899 print_ethaddr(const char *name, struct rte_ether_addr *mac_addr)
901 char buf[RTE_ETHER_ADDR_FMT_SIZE];
902 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, mac_addr);
903 RTE_LOG(INFO, APP, "\t%s%s\n", name, buf);
906 /* Callback for request of configuring mac address */
908 kni_config_mac_address(uint16_t port_id, uint8_t mac_addr[])
912 if (!rte_eth_dev_is_valid_port(port_id)) {
913 RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id);
917 RTE_LOG(INFO, APP, "Configure mac address of %d\n", port_id);
918 print_ethaddr("Address:", (struct rte_ether_addr *)mac_addr);
920 ret = rte_eth_dev_default_mac_addr_set(port_id,
921 (struct rte_ether_addr *)mac_addr);
923 RTE_LOG(ERR, APP, "Failed to config mac_addr for port %d\n",
930 kni_alloc(uint16_t port_id)
934 struct rte_kni_conf conf;
935 struct kni_port_params **params = kni_port_params_array;
938 if (port_id >= RTE_MAX_ETHPORTS || !params[port_id])
941 params[port_id]->nb_kni = params[port_id]->nb_lcore_k ?
942 params[port_id]->nb_lcore_k : 1;
944 for (i = 0; i < params[port_id]->nb_kni; i++) {
945 /* Clear conf at first */
946 memset(&conf, 0, sizeof(conf));
947 if (params[port_id]->nb_lcore_k) {
948 snprintf(conf.name, RTE_KNI_NAMESIZE,
949 "vEth%u_%u", port_id, i);
950 conf.core_id = params[port_id]->lcore_k[i];
953 snprintf(conf.name, RTE_KNI_NAMESIZE,
955 conf.group_id = port_id;
956 conf.mbuf_size = MAX_PACKET_SZ;
958 * The first KNI device associated to a port
959 * is the master, for multiple kernel thread
963 struct rte_kni_ops ops;
964 struct rte_eth_dev_info dev_info;
966 ret = rte_eth_dev_info_get(port_id, &dev_info);
968 rte_exit(EXIT_FAILURE,
969 "Error during getting device (port %u) info: %s\n",
970 port_id, strerror(-ret));
972 /* Get the interface default mac address */
973 ret = rte_eth_macaddr_get(port_id,
974 (struct rte_ether_addr *)&conf.mac_addr);
976 rte_exit(EXIT_FAILURE,
977 "Failed to get MAC address (port %u): %s\n",
978 port_id, rte_strerror(-ret));
980 rte_eth_dev_get_mtu(port_id, &conf.mtu);
982 conf.min_mtu = dev_info.min_mtu;
983 conf.max_mtu = dev_info.max_mtu;
985 memset(&ops, 0, sizeof(ops));
986 ops.port_id = port_id;
987 ops.change_mtu = kni_change_mtu;
988 ops.config_network_if = kni_config_network_interface;
989 ops.config_mac_address = kni_config_mac_address;
991 kni = rte_kni_alloc(pktmbuf_pool, &conf, &ops);
993 kni = rte_kni_alloc(pktmbuf_pool, &conf, NULL);
996 rte_exit(EXIT_FAILURE, "Fail to create kni for "
997 "port: %d\n", port_id);
998 params[port_id]->kni[i] = kni;
1005 kni_free_kni(uint16_t port_id)
1008 struct kni_port_params **p = kni_port_params_array;
1010 if (port_id >= RTE_MAX_ETHPORTS || !p[port_id])
1013 for (i = 0; i < p[port_id]->nb_kni; i++) {
1014 if (rte_kni_release(p[port_id]->kni[i]))
1015 printf("Fail to release kni\n");
1016 p[port_id]->kni[i] = NULL;
1018 rte_eth_dev_stop(port_id);
1023 /* Initialise ports/queues etc. and start main loop on each core */
1025 main(int argc, char** argv)
1028 uint16_t nb_sys_ports, port;
1031 pthread_t kni_link_tid;
1034 /* Associate signal_hanlder function with USR signals */
1035 signal(SIGUSR1, signal_handler);
1036 signal(SIGUSR2, signal_handler);
1037 signal(SIGRTMIN, signal_handler);
1038 signal(SIGINT, signal_handler);
1039 signal(SIGTERM, signal_handler);
1041 /* Initialise EAL */
1042 ret = rte_eal_init(argc, argv);
1044 rte_exit(EXIT_FAILURE, "Could not initialise EAL (%d)\n", ret);
1048 /* Parse application arguments (after the EAL ones) */
1049 ret = parse_args(argc, argv);
1051 rte_exit(EXIT_FAILURE, "Could not parse input parameters\n");
1053 /* Create the mbuf pool */
1054 pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF,
1055 MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, rte_socket_id());
1056 if (pktmbuf_pool == NULL) {
1057 rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n");
1061 /* Get number of ports found in scan */
1062 nb_sys_ports = rte_eth_dev_count_avail();
1063 if (nb_sys_ports == 0)
1064 rte_exit(EXIT_FAILURE, "No supported Ethernet device found\n");
1066 /* Check if the configured port ID is valid */
1067 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
1068 if (kni_port_params_array[i] && !rte_eth_dev_is_valid_port(i))
1069 rte_exit(EXIT_FAILURE, "Configured invalid "
1072 /* Initialize KNI subsystem */
1075 /* Initialise each port */
1076 RTE_ETH_FOREACH_DEV(port) {
1077 /* Skip ports that are not enabled */
1078 if (!(ports_mask & (1 << port)))
1082 if (port >= RTE_MAX_ETHPORTS)
1083 rte_exit(EXIT_FAILURE, "Can not use more than "
1084 "%d ports for kni\n", RTE_MAX_ETHPORTS);
1088 check_all_ports_link_status(ports_mask);
1091 RTE_LOG(INFO, APP, "========================\n");
1092 RTE_LOG(INFO, APP, "KNI Running\n");
1093 RTE_LOG(INFO, APP, "kill -SIGUSR1 %d\n", pid);
1094 RTE_LOG(INFO, APP, " Show KNI Statistics.\n");
1095 RTE_LOG(INFO, APP, "kill -SIGUSR2 %d\n", pid);
1096 RTE_LOG(INFO, APP, " Zero KNI Statistics.\n");
1097 RTE_LOG(INFO, APP, "========================\n");
1100 ret = rte_ctrl_thread_create(&kni_link_tid,
1101 "KNI link status check", NULL,
1102 monitor_all_ports_link_status, NULL);
1104 rte_exit(EXIT_FAILURE,
1105 "Could not create link status thread!\n");
1107 /* Launch per-lcore function on every lcore */
1108 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1109 RTE_LCORE_FOREACH_SLAVE(i) {
1110 if (rte_eal_wait_lcore(i) < 0)
1114 pthread_join(kni_link_tid, &retval);
1116 /* Release resources */
1117 RTE_ETH_FOREACH_DEV(port) {
1118 if (!(ports_mask & (1 << port)))
1122 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
1123 if (kni_port_params_array[i]) {
1124 rte_free(kni_port_params_array[i]);
1125 kni_port_params_array[i] = NULL;