1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
11 #include <sys/queue.h>
17 #include <rte_common.h>
18 #include <rte_byteorder.h>
20 #include <rte_memory.h>
21 #include <rte_memcpy.h>
23 #include <rte_launch.h>
24 #include <rte_atomic.h>
25 #include <rte_spinlock.h>
26 #include <rte_cycles.h>
27 #include <rte_prefetch.h>
28 #include <rte_lcore.h>
29 #include <rte_per_lcore.h>
30 #include <rte_branch_prediction.h>
31 #include <rte_interrupts.h>
32 #include <rte_random.h>
33 #include <rte_debug.h>
34 #include <rte_ether.h>
35 #include <rte_ethdev.h>
36 #include <rte_mempool.h>
41 #include <rte_string_fns.h>
43 #define APP_LOOKUP_EXACT_MATCH 0
44 #define APP_LOOKUP_LPM 1
45 #define DO_RFC_1812_CHECKS
47 //#define APP_LOOKUP_METHOD APP_LOOKUP_EXACT_MATCH
48 #ifndef APP_LOOKUP_METHOD
49 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
52 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
54 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
57 #error "APP_LOOKUP_METHOD set to incorrect value"
60 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
62 #define MEMPOOL_CACHE_SIZE 256
65 * This expression is used to calculate the number of mbufs needed depending on user input, taking
66 * into account memory for rx and tx hardware rings, cache per lcore and mtable per port per lcore.
67 * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum value of 8192
70 #define NB_MBUF RTE_MAX ( \
71 (nb_ports*nb_rx_queue*nb_rxd + \
72 nb_ports*nb_lcores*MAX_PKT_BURST + \
73 nb_ports*n_tx_queue*nb_txd + \
74 nb_lcores*MEMPOOL_CACHE_SIZE), \
78 * RX and TX Prefetch, Host, and Write-back threshold values should be
79 * carefully set for optimal performance. Consult the network
80 * controller's datasheet and supporting DPDK documentation for guidance
81 * on how these parameters should be set.
83 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
84 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
85 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
88 * These default values are optimized for use with the Intel(R) 82599 10 GbE
89 * Controller and the DPDK ixgbe PMD. Consider using other values for other
90 * network controllers and/or network drivers.
92 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
93 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
94 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
96 #define MAX_PKT_BURST 32
97 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
103 /* Configure how many packets ahead to prefetch, when reading packets */
104 #define PREFETCH_OFFSET 3
107 * Configurable number of RX/TX ring descriptors
109 #define RTE_TEST_RX_DESC_DEFAULT 1024
110 #define RTE_TEST_TX_DESC_DEFAULT 1024
111 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
112 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
114 /* ethernet addresses of ports */
115 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
117 /* mask of enabled ports */
118 static uint32_t enabled_port_mask = 0;
119 static int numa_on = 1; /**< NUMA is enabled by default. */
123 struct rte_mbuf *m_table[MAX_PKT_BURST];
126 struct lcore_rx_queue {
129 } __rte_cache_aligned;
131 #define MAX_RX_QUEUE_PER_LCORE 16
132 #define MAX_TX_QUEUE_PER_PORT 1
133 #define MAX_RX_QUEUE_PER_PORT 1
135 #define MAX_LCORE_PARAMS 1024
136 struct lcore_params {
140 } __rte_cache_aligned;
142 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
143 static struct lcore_params lcore_params_array_default[] = {
155 static struct lcore_params * lcore_params = lcore_params_array_default;
156 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
157 sizeof(lcore_params_array_default[0]);
159 static struct rte_eth_conf port_conf = {
161 .mq_mode = ETH_MQ_RX_RSS,
162 .max_rx_pkt_len = ETHER_MAX_LEN,
164 .ignore_offload_bitfield = 1,
165 .offloads = (DEV_RX_OFFLOAD_CRC_STRIP |
166 DEV_RX_OFFLOAD_CHECKSUM),
171 .rss_hf = ETH_RSS_IP,
175 .mq_mode = ETH_MQ_TX_NONE,
179 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
182 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
185 #include <rte_hash_crc.h>
186 #define DEFAULT_HASH_FUNC rte_hash_crc
188 #include <rte_jhash.h>
189 #define DEFAULT_HASH_FUNC rte_jhash
198 } __attribute__((__packed__));
201 struct ipv4_5tuple key;
205 static struct l3fwd_route l3fwd_route_array[] = {
206 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
207 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
208 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
209 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
212 typedef struct rte_hash lookup_struct_t;
213 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
215 #define L3FWD_HASH_ENTRIES 1024
216 struct rte_hash_parameters l3fwd_hash_params = {
217 .name = "l3fwd_hash_0",
218 .entries = L3FWD_HASH_ENTRIES,
219 .key_len = sizeof(struct ipv4_5tuple),
220 .hash_func = DEFAULT_HASH_FUNC,
221 .hash_func_init_val = 0,
222 .socket_id = SOCKET0,
225 #define L3FWD_NUM_ROUTES \
226 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
228 static uint8_t l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
231 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
238 static struct l3fwd_route l3fwd_route_array[] = {
239 {IPv4(1,1,1,0), 24, 0},
240 {IPv4(2,1,1,0), 24, 1},
241 {IPv4(3,1,1,0), 24, 2},
242 {IPv4(4,1,1,0), 24, 3},
243 {IPv4(5,1,1,0), 24, 4},
244 {IPv4(6,1,1,0), 24, 5},
245 {IPv4(7,1,1,0), 24, 6},
246 {IPv4(8,1,1,0), 24, 7},
249 #define L3FWD_NUM_ROUTES \
250 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
252 #define L3FWD_LPM_MAX_RULES 1024
254 typedef struct rte_lpm lookup_struct_t;
255 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
260 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
261 uint16_t tx_queue_id;
262 struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
263 lookup_struct_t * lookup_struct;
264 } __rte_cache_aligned;
266 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
267 static rte_spinlock_t spinlock_conf[RTE_MAX_ETHPORTS] = {RTE_SPINLOCK_INITIALIZER};
268 /* Send burst of packets on an output interface */
270 send_burst(struct lcore_conf *qconf, uint16_t n, uint16_t port)
272 struct rte_mbuf **m_table;
276 queueid = qconf->tx_queue_id;
277 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
279 rte_spinlock_lock(&spinlock_conf[port]);
280 ret = rte_eth_tx_burst(port, queueid, m_table, n);
281 rte_spinlock_unlock(&spinlock_conf[port]);
283 if (unlikely(ret < n)) {
285 rte_pktmbuf_free(m_table[ret]);
292 /* Enqueue a single packet, and send burst if queue is filled */
294 send_single_packet(struct rte_mbuf *m, uint16_t port)
298 struct lcore_conf *qconf;
300 lcore_id = rte_lcore_id();
302 qconf = &lcore_conf[lcore_id];
303 len = qconf->tx_mbufs[port].len;
304 qconf->tx_mbufs[port].m_table[len] = m;
307 /* enough pkts to be sent */
308 if (unlikely(len == MAX_PKT_BURST)) {
309 send_burst(qconf, MAX_PKT_BURST, port);
313 qconf->tx_mbufs[port].len = len;
317 #ifdef DO_RFC_1812_CHECKS
319 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
321 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
323 * 1. The packet length reported by the Link Layer must be large
324 * enough to hold the minimum length legal IP datagram (20 bytes).
326 if (link_len < sizeof(struct ipv4_hdr))
329 /* 2. The IP checksum must be correct. */
330 /* this is checked in H/W */
333 * 3. The IP version number must be 4. If the version number is not 4
334 * then the packet may be another version of IP, such as IPng or
337 if (((pkt->version_ihl) >> 4) != 4)
340 * 4. The IP header length field must be large enough to hold the
341 * minimum length legal IP datagram (20 bytes = 5 words).
343 if ((pkt->version_ihl & 0xf) < 5)
347 * 5. The IP total length field must be large enough to hold the IP
348 * datagram header, whose length is specified in the IP header length
351 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
358 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
360 print_key(struct ipv4_5tuple key)
362 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, proto = %d\n",
363 (unsigned)key.ip_dst, (unsigned)key.ip_src, key.port_dst, key.port_src, key.proto);
366 static inline uint16_t
367 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
368 lookup_struct_t *l3fwd_lookup_struct)
370 struct ipv4_5tuple key;
375 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
376 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
377 key.proto = ipv4_hdr->next_proto_id;
379 switch (ipv4_hdr->next_proto_id) {
381 tcp = (struct tcp_hdr *)((unsigned char *) ipv4_hdr +
382 sizeof(struct ipv4_hdr));
383 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
384 key.port_src = rte_be_to_cpu_16(tcp->src_port);
388 udp = (struct udp_hdr *)((unsigned char *) ipv4_hdr +
389 sizeof(struct ipv4_hdr));
390 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
391 key.port_src = rte_be_to_cpu_16(udp->src_port);
399 /* Find destination port */
400 ret = rte_hash_lookup(l3fwd_lookup_struct, (const void *)&key);
401 return ((ret < 0) ? portid : l3fwd_out_if[ret]);
405 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
406 static inline uint32_t
407 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
408 lookup_struct_t *l3fwd_lookup_struct)
412 return ((rte_lpm_lookup(l3fwd_lookup_struct,
413 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0) ?
419 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
420 lookup_struct_t *l3fwd_lookup_struct)
422 struct ether_hdr *eth_hdr;
423 struct ipv4_hdr *ipv4_hdr;
427 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
429 ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
430 sizeof(struct ether_hdr));
432 #ifdef DO_RFC_1812_CHECKS
433 /* Check to make sure the packet is valid (RFC1812) */
434 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
440 dst_port = get_dst_port(ipv4_hdr, portid, l3fwd_lookup_struct);
441 if (dst_port >= RTE_MAX_ETHPORTS || (enabled_port_mask & 1 << dst_port) == 0)
444 /* 02:00:00:00:00:xx */
445 tmp = ð_hdr->d_addr.addr_bytes[0];
446 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
448 #ifdef DO_RFC_1812_CHECKS
449 /* Update time to live and header checksum */
450 --(ipv4_hdr->time_to_live);
451 ++(ipv4_hdr->hdr_checksum);
455 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
457 send_single_packet(m, dst_port);
461 /* main processing loop */
463 main_loop(__attribute__((unused)) void *dummy)
465 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
467 uint64_t prev_tsc, diff_tsc, cur_tsc;
471 struct lcore_conf *qconf;
472 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
476 lcore_id = rte_lcore_id();
477 qconf = &lcore_conf[lcore_id];
479 if (qconf->n_rx_queue == 0) {
480 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
484 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
486 for (i = 0; i < qconf->n_rx_queue; i++) {
488 portid = qconf->rx_queue_list[i].port_id;
489 queueid = qconf->rx_queue_list[i].queue_id;
490 RTE_LOG(INFO, L3FWD, " --lcoreid=%u portid=%u rxqueueid=%hhu\n",
491 lcore_id, portid, queueid);
496 cur_tsc = rte_rdtsc();
499 * TX burst queue drain
501 diff_tsc = cur_tsc - prev_tsc;
502 if (unlikely(diff_tsc > drain_tsc)) {
505 * This could be optimized (use queueid instead of
506 * portid), but it is not called so often
508 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
509 if (qconf->tx_mbufs[portid].len == 0)
511 send_burst(&lcore_conf[lcore_id],
512 qconf->tx_mbufs[portid].len,
514 qconf->tx_mbufs[portid].len = 0;
521 * Read packet from RX queues
523 for (i = 0; i < qconf->n_rx_queue; ++i) {
525 portid = qconf->rx_queue_list[i].port_id;
526 queueid = qconf->rx_queue_list[i].queue_id;
527 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, MAX_PKT_BURST);
529 /* Prefetch first packets */
530 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
531 rte_prefetch0(rte_pktmbuf_mtod(
532 pkts_burst[j], void *));
535 /* Prefetch and forward already prefetched packets */
536 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
537 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
538 j + PREFETCH_OFFSET], void *));
539 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
542 /* Forward remaining prefetched packets */
543 for (; j < nb_rx; j++) {
544 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
551 check_lcore_params(void)
553 uint8_t queue, lcore;
557 for (i = 0; i < nb_lcore_params; ++i) {
558 queue = lcore_params[i].queue_id;
559 if (queue >= MAX_RX_QUEUE_PER_PORT) {
560 printf("invalid queue number: %hhu\n", queue);
563 lcore = lcore_params[i].lcore_id;
564 if (!rte_lcore_is_enabled(lcore)) {
565 printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
568 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
570 printf("warning: lcore %hhu is on socket %d with numa off \n",
578 check_port_config(void)
583 for (i = 0; i < nb_lcore_params; ++i) {
584 portid = lcore_params[i].port_id;
585 if ((enabled_port_mask & (1 << portid)) == 0) {
586 printf("port %u is not enabled in port mask\n", portid);
589 if (!rte_eth_dev_is_valid_port(portid)) {
590 printf("port %u is not present on the board\n", portid);
598 get_port_n_rx_queues(const uint16_t port)
603 for (i = 0; i < nb_lcore_params; ++i) {
604 if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
605 queue = lcore_params[i].queue_id;
607 return (uint8_t)(++queue);
611 init_lcore_rx_queues(void)
613 uint16_t i, nb_rx_queue;
616 for (i = 0; i < nb_lcore_params; ++i) {
617 lcore = lcore_params[i].lcore_id;
618 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
619 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
620 printf("error: too many queues (%u) for lcore: %u\n",
621 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
624 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
625 lcore_params[i].port_id;
626 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
627 lcore_params[i].queue_id;
628 lcore_conf[lcore].n_rx_queue++;
636 print_usage(const char *prgname)
638 printf ("%s [EAL options] -- -p PORTMASK"
639 " [--config (port,queue,lcore)[,(port,queue,lcore]]\n"
640 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
641 " --config (port,queue,lcore): rx queues configuration\n"
642 " --no-numa: optional, disable numa awareness\n",
646 /* Custom handling of signals to handle process terminal */
648 signal_handler(int signum)
652 /* When we receive a SIGINT signal */
653 if (signum == SIGINT) {
654 RTE_ETH_FOREACH_DEV(portid) {
655 /* skip ports that are not enabled */
656 if ((enabled_port_mask & (1 << portid)) == 0)
658 rte_eth_dev_close(portid);
661 rte_exit(EXIT_SUCCESS, "\n User forced exit\n");
664 parse_portmask(const char *portmask)
669 /* parse hexadecimal string */
670 pm = strtoul(portmask, &end, 16);
671 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
681 parse_config(const char *q_arg)
684 const char *p, *p0 = q_arg;
692 unsigned long int_fld[_NUM_FLD];
693 char *str_fld[_NUM_FLD];
699 while ((p = strchr(p0,'(')) != NULL) {
701 if((p0 = strchr(p,')')) == NULL)
705 if(size >= sizeof(s))
708 snprintf(s, sizeof(s), "%.*s", size, p);
709 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
711 for (i = 0; i < _NUM_FLD; i++){
713 int_fld[i] = strtoul(str_fld[i], &end, 0);
714 if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
717 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
718 printf("exceeded max number of lcore params: %hu\n",
722 lcore_params_array[nb_lcore_params].port_id = int_fld[FLD_PORT];
723 lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
724 lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
727 lcore_params = lcore_params_array;
731 /* Parse the argument given in the command line of the application */
733 parse_args(int argc, char **argv)
738 char *prgname = argv[0];
739 static struct option lgopts[] = {
741 {"no-numa", 0, 0, 0},
747 while ((opt = getopt_long(argc, argvopt, "p:",
748 lgopts, &option_index)) != EOF) {
753 enabled_port_mask = parse_portmask(optarg);
754 if (enabled_port_mask == 0) {
755 printf("invalid portmask\n");
756 print_usage(prgname);
763 if (!strcmp(lgopts[option_index].name, "config")) {
764 ret = parse_config(optarg);
766 printf("invalid config\n");
767 print_usage(prgname);
772 if (!strcmp(lgopts[option_index].name, "no-numa")) {
773 printf("numa is disabled \n");
779 print_usage(prgname);
785 argv[optind-1] = prgname;
788 optind = 1; /* reset getopt lib */
793 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
795 char buf[ETHER_ADDR_FMT_SIZE];
796 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
797 printf("%s%s", name, buf);
800 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
802 setup_hash(int socketid)
809 snprintf(s, sizeof(s), "l3fwd_hash_%d", socketid);
810 l3fwd_hash_params.name = s;
811 l3fwd_hash_params.socket_id = socketid;
812 l3fwd_lookup_struct[socketid] = rte_hash_create(&l3fwd_hash_params);
813 if (l3fwd_lookup_struct[socketid] == NULL)
814 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
815 "socket %d\n", socketid);
817 /* populate the hash */
818 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
819 ret = rte_hash_add_key (l3fwd_lookup_struct[socketid],
820 (void *) &l3fwd_route_array[i].key);
822 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
823 "l3fwd hash on socket %d\n", i, socketid);
825 l3fwd_out_if[ret] = l3fwd_route_array[i].if_out;
826 printf("Hash: Adding key\n");
827 print_key(l3fwd_route_array[i].key);
832 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
834 setup_lpm(int socketid)
840 struct rte_lpm_config lpm_ipv4_config;
842 lpm_ipv4_config.max_rules = L3FWD_LPM_MAX_RULES;
843 lpm_ipv4_config.number_tbl8s = 256;
844 lpm_ipv4_config.flags = 0;
846 /* create the LPM table */
847 snprintf(s, sizeof(s), "L3FWD_LPM_%d", socketid);
848 l3fwd_lookup_struct[socketid] =
849 rte_lpm_create(s, socketid, &lpm_ipv4_config);
850 if (l3fwd_lookup_struct[socketid] == NULL)
851 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
852 " on socket %d\n", socketid);
854 /* populate the LPM table */
855 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
856 ret = rte_lpm_add(l3fwd_lookup_struct[socketid],
857 l3fwd_route_array[i].ip,
858 l3fwd_route_array[i].depth,
859 l3fwd_route_array[i].if_out);
862 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
863 "l3fwd LPM table on socket %d\n",
867 printf("LPM: Adding route 0x%08x / %d (%d)\n",
868 (unsigned)l3fwd_route_array[i].ip,
869 l3fwd_route_array[i].depth,
870 l3fwd_route_array[i].if_out);
876 init_mem(unsigned nb_mbuf)
878 struct lcore_conf *qconf;
883 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
884 if (rte_lcore_is_enabled(lcore_id) == 0)
888 socketid = rte_lcore_to_socket_id(lcore_id);
892 if (socketid >= NB_SOCKETS) {
893 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
894 socketid, lcore_id, NB_SOCKETS);
896 if (pktmbuf_pool[socketid] == NULL) {
897 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
898 pktmbuf_pool[socketid] = rte_pktmbuf_pool_create(s,
899 nb_mbuf, MEMPOOL_CACHE_SIZE, 0,
900 RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
901 if (pktmbuf_pool[socketid] == NULL)
902 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n", socketid);
904 printf("Allocated mbuf pool on socket %d\n", socketid);
906 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
909 setup_hash(socketid);
912 qconf = &lcore_conf[lcore_id];
913 qconf->lookup_struct = l3fwd_lookup_struct[socketid];
919 main(int argc, char **argv)
921 struct lcore_conf *qconf;
922 struct rte_eth_dev_info dev_info;
923 struct rte_eth_txconf *txconf;
926 uint16_t queueid, portid;
930 uint8_t nb_rx_queue, queue, socketid;
932 signal(SIGINT, signal_handler);
934 ret = rte_eal_init(argc, argv);
936 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
940 /* parse application arguments (after the EAL ones) */
941 ret = parse_args(argc, argv);
943 rte_exit(EXIT_FAILURE, "Invalid L3FWD-VF parameters\n");
945 if (check_lcore_params() < 0)
946 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
948 ret = init_lcore_rx_queues();
950 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
952 nb_ports = rte_eth_dev_count_avail();
954 if (check_port_config() < 0)
955 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
957 nb_lcores = rte_lcore_count();
959 /* initialize all ports */
960 RTE_ETH_FOREACH_DEV(portid) {
961 struct rte_eth_conf local_port_conf = port_conf;
963 /* skip ports that are not enabled */
964 if ((enabled_port_mask & (1 << portid)) == 0) {
965 printf("\nSkipping disabled port %d\n", portid);
970 printf("Initializing port %d ... ", portid );
973 /* must always equal(=1) */
974 nb_rx_queue = get_port_n_rx_queues(portid);
975 n_tx_queue = MAX_TX_QUEUE_PER_PORT;
977 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
978 nb_rx_queue, (unsigned)1 );
980 rte_eth_dev_info_get(portid, &dev_info);
981 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
982 local_port_conf.txmode.offloads |=
983 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
984 ret = rte_eth_dev_configure(portid, nb_rx_queue,
985 n_tx_queue, &local_port_conf);
987 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
990 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
993 rte_exit(EXIT_FAILURE,
994 "Cannot adjust number of descriptors: err=%d, port=%d\n",
997 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
998 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1001 ret = init_mem(NB_MBUF);
1003 rte_exit(EXIT_FAILURE, "init_mem failed\n");
1005 /* init one TX queue */
1006 socketid = (uint8_t)rte_lcore_to_socket_id(rte_get_master_lcore());
1008 printf("txq=%d,%d,%d ", portid, 0, socketid);
1011 txconf = &dev_info.default_txconf;
1012 txconf->txq_flags = ETH_TXQ_FLAGS_IGNORE;
1013 txconf->offloads = local_port_conf.txmode.offloads;
1014 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
1017 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1018 "port=%d\n", ret, portid);
1023 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1024 struct rte_eth_rxconf rxq_conf;
1026 if (rte_lcore_is_enabled(lcore_id) == 0)
1028 qconf = &lcore_conf[lcore_id];
1029 qconf->tx_queue_id = 0;
1031 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1033 /* init RX queues */
1034 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1035 struct rte_eth_dev *dev;
1036 struct rte_eth_conf *conf;
1038 portid = qconf->rx_queue_list[queue].port_id;
1039 queueid = qconf->rx_queue_list[queue].queue_id;
1040 dev = &rte_eth_devices[portid];
1041 conf = &dev->data->dev_conf;
1044 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
1048 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1051 rte_eth_dev_info_get(portid, &dev_info);
1052 rxq_conf = dev_info.default_rxconf;
1053 rxq_conf.offloads = conf->rxmode.offloads;
1054 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1055 socketid, &rxq_conf,
1056 pktmbuf_pool[socketid]);
1058 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
1059 "port=%d\n", ret, portid);
1065 RTE_ETH_FOREACH_DEV(portid) {
1066 if ((enabled_port_mask & (1 << portid)) == 0) {
1070 ret = rte_eth_dev_start(portid);
1072 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1075 printf("done: Port %d\n", portid);
1079 /* launch per-lcore init on every lcore */
1080 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1081 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1082 if (rte_eal_wait_lcore(lcore_id) < 0)