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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18 * contributors may be used to endorse or promote products derived
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24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/types.h>
40 #include <sys/queue.h>
46 #include <rte_common.h>
47 #include <rte_byteorder.h>
49 #include <rte_memory.h>
50 #include <rte_memcpy.h>
51 #include <rte_memzone.h>
53 #include <rte_per_lcore.h>
54 #include <rte_launch.h>
55 #include <rte_atomic.h>
56 #include <rte_spinlock.h>
57 #include <rte_cycles.h>
58 #include <rte_prefetch.h>
59 #include <rte_lcore.h>
60 #include <rte_per_lcore.h>
61 #include <rte_branch_prediction.h>
62 #include <rte_interrupts.h>
64 #include <rte_random.h>
65 #include <rte_debug.h>
66 #include <rte_ether.h>
67 #include <rte_ethdev.h>
69 #include <rte_mempool.h>
74 #include <rte_string_fns.h>
76 #define APP_LOOKUP_EXACT_MATCH 0
77 #define APP_LOOKUP_LPM 1
78 #define DO_RFC_1812_CHECKS
80 //#define APP_LOOKUP_METHOD APP_LOOKUP_EXACT_MATCH
81 #ifndef APP_LOOKUP_METHOD
82 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
85 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
87 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
90 #error "APP_LOOKUP_METHOD set to incorrect value"
93 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
95 #define MEMPOOL_CACHE_SIZE 256
97 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
100 * This expression is used to calculate the number of mbufs needed depending on user input, taking
101 * into account memory for rx and tx hardware rings, cache per lcore and mtable per port per lcore.
102 * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum value of 8192
105 #define NB_MBUF RTE_MAX ( \
106 (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
107 nb_ports*nb_lcores*MAX_PKT_BURST + \
108 nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
109 nb_lcores*MEMPOOL_CACHE_SIZE), \
113 * RX and TX Prefetch, Host, and Write-back threshold values should be
114 * carefully set for optimal performance. Consult the network
115 * controller's datasheet and supporting DPDK documentation for guidance
116 * on how these parameters should be set.
118 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
119 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
120 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
123 * These default values are optimized for use with the Intel(R) 82599 10 GbE
124 * Controller and the DPDK ixgbe PMD. Consider using other values for other
125 * network controllers and/or network drivers.
127 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
128 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
129 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
131 #define MAX_PKT_BURST 32
132 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
138 /* Configure how many packets ahead to prefetch, when reading packets */
139 #define PREFETCH_OFFSET 3
142 * Configurable number of RX/TX ring descriptors
144 #define RTE_TEST_RX_DESC_DEFAULT 128
145 #define RTE_TEST_TX_DESC_DEFAULT 512
146 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
147 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
149 /* ethernet addresses of ports */
150 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
152 /* mask of enabled ports */
153 static uint32_t enabled_port_mask = 0;
154 static int numa_on = 1; /**< NUMA is enabled by default. */
158 struct rte_mbuf *m_table[MAX_PKT_BURST];
161 struct lcore_rx_queue {
164 } __rte_cache_aligned;
166 #define MAX_RX_QUEUE_PER_LCORE 16
167 #define MAX_TX_QUEUE_PER_PORT 1
168 #define MAX_RX_QUEUE_PER_PORT 1
170 #define MAX_LCORE_PARAMS 1024
171 struct lcore_params {
175 } __rte_cache_aligned;
177 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
178 static struct lcore_params lcore_params_array_default[] = {
190 static struct lcore_params * lcore_params = lcore_params_array_default;
191 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
192 sizeof(lcore_params_array_default[0]);
194 static struct rte_eth_conf port_conf = {
196 .mq_mode = ETH_MQ_RX_RSS,
197 .max_rx_pkt_len = ETHER_MAX_LEN,
199 .header_split = 0, /**< Header Split disabled */
200 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
201 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
202 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
203 .hw_strip_crc = 0, /**< CRC stripped by hardware */
208 .rss_hf = ETH_RSS_IP,
212 .mq_mode = ETH_MQ_TX_NONE,
216 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
219 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
221 #ifdef RTE_MACHINE_CPUFLAG_SSE4_2
222 #include <rte_hash_crc.h>
223 #define DEFAULT_HASH_FUNC rte_hash_crc
225 #include <rte_jhash.h>
226 #define DEFAULT_HASH_FUNC rte_jhash
235 } __attribute__((__packed__));
238 struct ipv4_5tuple key;
242 static struct l3fwd_route l3fwd_route_array[] = {
243 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
244 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
245 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
246 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
249 typedef struct rte_hash lookup_struct_t;
250 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
252 #define L3FWD_HASH_ENTRIES 1024
253 struct rte_hash_parameters l3fwd_hash_params = {
254 .name = "l3fwd_hash_0",
255 .entries = L3FWD_HASH_ENTRIES,
257 .key_len = sizeof(struct ipv4_5tuple),
258 .hash_func = DEFAULT_HASH_FUNC,
259 .hash_func_init_val = 0,
260 .socket_id = SOCKET0,
263 #define L3FWD_NUM_ROUTES \
264 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
266 static uint8_t l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
269 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
276 static struct l3fwd_route l3fwd_route_array[] = {
277 {IPv4(1,1,1,0), 24, 0},
278 {IPv4(2,1,1,0), 24, 1},
279 {IPv4(3,1,1,0), 24, 2},
280 {IPv4(4,1,1,0), 24, 3},
281 {IPv4(5,1,1,0), 24, 4},
282 {IPv4(6,1,1,0), 24, 5},
283 {IPv4(7,1,1,0), 24, 6},
284 {IPv4(8,1,1,0), 24, 7},
287 #define L3FWD_NUM_ROUTES \
288 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
290 #define L3FWD_LPM_MAX_RULES 1024
292 typedef struct rte_lpm lookup_struct_t;
293 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
298 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
299 uint16_t tx_queue_id;
300 struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
301 lookup_struct_t * lookup_struct;
302 } __rte_cache_aligned;
304 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
305 static rte_spinlock_t spinlock_conf[RTE_MAX_ETHPORTS] = {RTE_SPINLOCK_INITIALIZER};
306 /* Send burst of packets on an output interface */
308 send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
310 struct rte_mbuf **m_table;
314 queueid = qconf->tx_queue_id;
315 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
317 rte_spinlock_lock(&spinlock_conf[port]);
318 ret = rte_eth_tx_burst(port, queueid, m_table, n);
319 rte_spinlock_unlock(&spinlock_conf[port]);
321 if (unlikely(ret < n)) {
323 rte_pktmbuf_free(m_table[ret]);
330 /* Enqueue a single packet, and send burst if queue is filled */
332 send_single_packet(struct rte_mbuf *m, uint8_t port)
336 struct lcore_conf *qconf;
338 lcore_id = rte_lcore_id();
340 qconf = &lcore_conf[lcore_id];
341 len = qconf->tx_mbufs[port].len;
342 qconf->tx_mbufs[port].m_table[len] = m;
345 /* enough pkts to be sent */
346 if (unlikely(len == MAX_PKT_BURST)) {
347 send_burst(qconf, MAX_PKT_BURST, port);
351 qconf->tx_mbufs[port].len = len;
355 #ifdef DO_RFC_1812_CHECKS
357 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
359 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
361 * 1. The packet length reported by the Link Layer must be large
362 * enough to hold the minimum length legal IP datagram (20 bytes).
364 if (link_len < sizeof(struct ipv4_hdr))
367 /* 2. The IP checksum must be correct. */
368 /* this is checked in H/W */
371 * 3. The IP version number must be 4. If the version number is not 4
372 * then the packet may be another version of IP, such as IPng or
375 if (((pkt->version_ihl) >> 4) != 4)
378 * 4. The IP header length field must be large enough to hold the
379 * minimum length legal IP datagram (20 bytes = 5 words).
381 if ((pkt->version_ihl & 0xf) < 5)
385 * 5. The IP total length field must be large enough to hold the IP
386 * datagram header, whose length is specified in the IP header length
389 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
396 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
398 print_key(struct ipv4_5tuple key)
400 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, proto = %d\n",
401 (unsigned)key.ip_dst, (unsigned)key.ip_src, key.port_dst, key.port_src, key.proto);
404 static inline uint8_t
405 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
407 struct ipv4_5tuple key;
412 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
413 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
414 key.proto = ipv4_hdr->next_proto_id;
416 switch (ipv4_hdr->next_proto_id) {
418 tcp = (struct tcp_hdr *)((unsigned char *) ipv4_hdr +
419 sizeof(struct ipv4_hdr));
420 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
421 key.port_src = rte_be_to_cpu_16(tcp->src_port);
425 udp = (struct udp_hdr *)((unsigned char *) ipv4_hdr +
426 sizeof(struct ipv4_hdr));
427 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
428 key.port_src = rte_be_to_cpu_16(udp->src_port);
436 /* Find destination port */
437 ret = rte_hash_lookup(l3fwd_lookup_struct, (const void *)&key);
438 return (uint8_t)((ret < 0)? portid : l3fwd_out_if[ret]);
442 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
443 static inline uint8_t
444 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
448 return (uint8_t) ((rte_lpm_lookup(l3fwd_lookup_struct,
449 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
455 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
457 struct ether_hdr *eth_hdr;
458 struct ipv4_hdr *ipv4_hdr;
462 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
464 ipv4_hdr = (struct ipv4_hdr *)(rte_pktmbuf_mtod(m, unsigned char *) +
465 sizeof(struct ether_hdr));
467 #ifdef DO_RFC_1812_CHECKS
468 /* Check to make sure the packet is valid (RFC1812) */
469 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
475 dst_port = get_dst_port(ipv4_hdr, portid, l3fwd_lookup_struct);
476 if (dst_port >= RTE_MAX_ETHPORTS || (enabled_port_mask & 1 << dst_port) == 0)
479 /* 02:00:00:00:00:xx */
480 tmp = ð_hdr->d_addr.addr_bytes[0];
481 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
483 #ifdef DO_RFC_1812_CHECKS
484 /* Update time to live and header checksum */
485 --(ipv4_hdr->time_to_live);
486 ++(ipv4_hdr->hdr_checksum);
490 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
492 send_single_packet(m, dst_port);
496 /* main processing loop */
498 main_loop(__attribute__((unused)) void *dummy)
500 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
502 uint64_t prev_tsc, diff_tsc, cur_tsc;
504 uint8_t portid, queueid;
505 struct lcore_conf *qconf;
506 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
510 lcore_id = rte_lcore_id();
511 qconf = &lcore_conf[lcore_id];
513 if (qconf->n_rx_queue == 0) {
514 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
518 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
520 for (i = 0; i < qconf->n_rx_queue; i++) {
522 portid = qconf->rx_queue_list[i].port_id;
523 queueid = qconf->rx_queue_list[i].queue_id;
524 RTE_LOG(INFO, L3FWD, " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n", lcore_id,
530 cur_tsc = rte_rdtsc();
533 * TX burst queue drain
535 diff_tsc = cur_tsc - prev_tsc;
536 if (unlikely(diff_tsc > drain_tsc)) {
539 * This could be optimized (use queueid instead of
540 * portid), but it is not called so often
542 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
543 if (qconf->tx_mbufs[portid].len == 0)
545 send_burst(&lcore_conf[lcore_id],
546 qconf->tx_mbufs[portid].len,
548 qconf->tx_mbufs[portid].len = 0;
555 * Read packet from RX queues
557 for (i = 0; i < qconf->n_rx_queue; ++i) {
559 portid = qconf->rx_queue_list[i].port_id;
560 queueid = qconf->rx_queue_list[i].queue_id;
561 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, MAX_PKT_BURST);
563 /* Prefetch first packets */
564 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
565 rte_prefetch0(rte_pktmbuf_mtod(
566 pkts_burst[j], void *));
569 /* Prefetch and forward already prefetched packets */
570 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
571 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
572 j + PREFETCH_OFFSET], void *));
573 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
576 /* Forward remaining prefetched packets */
577 for (; j < nb_rx; j++) {
578 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
585 check_lcore_params(void)
587 uint8_t queue, lcore;
591 for (i = 0; i < nb_lcore_params; ++i) {
592 queue = lcore_params[i].queue_id;
593 if (queue >= MAX_RX_QUEUE_PER_PORT) {
594 printf("invalid queue number: %hhu\n", queue);
597 lcore = lcore_params[i].lcore_id;
598 if (!rte_lcore_is_enabled(lcore)) {
599 printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
602 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
604 printf("warning: lcore %hhu is on socket %d with numa off \n",
612 check_port_config(const unsigned nb_ports)
617 for (i = 0; i < nb_lcore_params; ++i) {
618 portid = lcore_params[i].port_id;
619 if ((enabled_port_mask & (1 << portid)) == 0) {
620 printf("port %u is not enabled in port mask\n", portid);
623 if (portid >= nb_ports) {
624 printf("port %u is not present on the board\n", portid);
632 get_port_n_rx_queues(const uint8_t port)
637 for (i = 0; i < nb_lcore_params; ++i) {
638 if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
639 queue = lcore_params[i].queue_id;
641 return (uint8_t)(++queue);
645 init_lcore_rx_queues(void)
647 uint16_t i, nb_rx_queue;
650 for (i = 0; i < nb_lcore_params; ++i) {
651 lcore = lcore_params[i].lcore_id;
652 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
653 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
654 printf("error: too many queues (%u) for lcore: %u\n",
655 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
658 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
659 lcore_params[i].port_id;
660 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
661 lcore_params[i].queue_id;
662 lcore_conf[lcore].n_rx_queue++;
670 print_usage(const char *prgname)
672 printf ("%s [EAL options] -- -p PORTMASK"
673 " [--config (port,queue,lcore)[,(port,queue,lcore]]\n"
674 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
675 " --config (port,queue,lcore): rx queues configuration\n"
676 " --no-numa: optional, disable numa awareness\n",
680 /* Custom handling of signals to handle process terminal */
682 signal_handler(int signum)
685 uint8_t nb_ports = rte_eth_dev_count();
687 /* When we receive a SIGINT signal */
688 if (signum == SIGINT) {
689 for (portid = 0; portid < nb_ports; portid++) {
690 /* skip ports that are not enabled */
691 if ((enabled_port_mask & (1 << portid)) == 0)
693 rte_eth_dev_close(portid);
696 rte_exit(EXIT_SUCCESS, "\n User forced exit\n");
699 parse_portmask(const char *portmask)
704 /* parse hexadecimal string */
705 pm = strtoul(portmask, &end, 16);
706 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
716 parse_config(const char *q_arg)
719 const char *p, *p0 = q_arg;
727 unsigned long int_fld[_NUM_FLD];
728 char *str_fld[_NUM_FLD];
734 while ((p = strchr(p0,'(')) != NULL) {
736 if((p0 = strchr(p,')')) == NULL)
740 if(size >= sizeof(s))
743 snprintf(s, sizeof(s), "%.*s", size, p);
744 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
746 for (i = 0; i < _NUM_FLD; i++){
748 int_fld[i] = strtoul(str_fld[i], &end, 0);
749 if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
752 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
753 printf("exceeded max number of lcore params: %hu\n",
757 lcore_params_array[nb_lcore_params].port_id = (uint8_t)int_fld[FLD_PORT];
758 lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
759 lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
762 lcore_params = lcore_params_array;
766 /* Parse the argument given in the command line of the application */
768 parse_args(int argc, char **argv)
773 char *prgname = argv[0];
774 static struct option lgopts[] = {
776 {"no-numa", 0, 0, 0},
782 while ((opt = getopt_long(argc, argvopt, "p:",
783 lgopts, &option_index)) != EOF) {
788 enabled_port_mask = parse_portmask(optarg);
789 if (enabled_port_mask == 0) {
790 printf("invalid portmask\n");
791 print_usage(prgname);
798 if (!strcmp(lgopts[option_index].name, "config")) {
799 ret = parse_config(optarg);
801 printf("invalid config\n");
802 print_usage(prgname);
807 if (!strcmp(lgopts[option_index].name, "no-numa")) {
808 printf("numa is disabled \n");
814 print_usage(prgname);
820 argv[optind-1] = prgname;
823 optind = 0; /* reset getopt lib */
828 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
830 char buf[ETHER_ADDR_FMT_SIZE];
831 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
832 printf("%s%s", name, buf);
835 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
837 setup_hash(int socketid)
844 snprintf(s, sizeof(s), "l3fwd_hash_%d", socketid);
845 l3fwd_hash_params.name = s;
846 l3fwd_hash_params.socket_id = socketid;
847 l3fwd_lookup_struct[socketid] = rte_hash_create(&l3fwd_hash_params);
848 if (l3fwd_lookup_struct[socketid] == NULL)
849 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
850 "socket %d\n", socketid);
852 /* populate the hash */
853 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
854 ret = rte_hash_add_key (l3fwd_lookup_struct[socketid],
855 (void *) &l3fwd_route_array[i].key);
857 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
858 "l3fwd hash on socket %d\n", i, socketid);
860 l3fwd_out_if[ret] = l3fwd_route_array[i].if_out;
861 printf("Hash: Adding key\n");
862 print_key(l3fwd_route_array[i].key);
867 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
869 setup_lpm(int socketid)
875 /* create the LPM table */
876 snprintf(s, sizeof(s), "L3FWD_LPM_%d", socketid);
877 l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
878 L3FWD_LPM_MAX_RULES, 0);
879 if (l3fwd_lookup_struct[socketid] == NULL)
880 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
881 " on socket %d\n", socketid);
883 /* populate the LPM table */
884 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
885 ret = rte_lpm_add(l3fwd_lookup_struct[socketid],
886 l3fwd_route_array[i].ip,
887 l3fwd_route_array[i].depth,
888 l3fwd_route_array[i].if_out);
891 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
892 "l3fwd LPM table on socket %d\n",
896 printf("LPM: Adding route 0x%08x / %d (%d)\n",
897 (unsigned)l3fwd_route_array[i].ip,
898 l3fwd_route_array[i].depth,
899 l3fwd_route_array[i].if_out);
905 init_mem(unsigned nb_mbuf)
907 struct lcore_conf *qconf;
912 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
913 if (rte_lcore_is_enabled(lcore_id) == 0)
917 socketid = rte_lcore_to_socket_id(lcore_id);
921 if (socketid >= NB_SOCKETS) {
922 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
923 socketid, lcore_id, NB_SOCKETS);
925 if (pktmbuf_pool[socketid] == NULL) {
926 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
927 pktmbuf_pool[socketid] =
928 rte_mempool_create(s, nb_mbuf, MBUF_SIZE,
930 sizeof(struct rte_pktmbuf_pool_private),
931 rte_pktmbuf_pool_init, NULL,
932 rte_pktmbuf_init, NULL,
934 if (pktmbuf_pool[socketid] == NULL)
935 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n", socketid);
937 printf("Allocated mbuf pool on socket %d\n", socketid);
939 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
942 setup_hash(socketid);
945 qconf = &lcore_conf[lcore_id];
946 qconf->lookup_struct = l3fwd_lookup_struct[socketid];
952 main(int argc, char **argv)
954 struct lcore_conf *qconf;
955 struct rte_eth_dev_info dev_info;
956 struct rte_eth_txconf *txconf;
963 uint8_t portid, nb_rx_queue, queue, socketid;
965 signal(SIGINT, signal_handler);
967 ret = rte_eal_init(argc, argv);
969 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
973 /* parse application arguments (after the EAL ones) */
974 ret = parse_args(argc, argv);
976 rte_exit(EXIT_FAILURE, "Invalid L3FWD-VF parameters\n");
978 if (check_lcore_params() < 0)
979 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
981 ret = init_lcore_rx_queues();
983 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
985 nb_ports = rte_eth_dev_count();
986 if (nb_ports > RTE_MAX_ETHPORTS)
987 nb_ports = RTE_MAX_ETHPORTS;
989 if (check_port_config(nb_ports) < 0)
990 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
992 nb_lcores = rte_lcore_count();
994 /* initialize all ports */
995 for (portid = 0; portid < nb_ports; portid++) {
996 /* skip ports that are not enabled */
997 if ((enabled_port_mask & (1 << portid)) == 0) {
998 printf("\nSkipping disabled port %d\n", portid);
1003 printf("Initializing port %d ... ", portid );
1006 /* must always equal(=1) */
1007 nb_rx_queue = get_port_n_rx_queues(portid);
1008 n_tx_queue = MAX_TX_QUEUE_PER_PORT;
1010 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1011 nb_rx_queue, (unsigned)1 );
1012 ret = rte_eth_dev_configure(portid, nb_rx_queue, n_tx_queue, &port_conf);
1014 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
1017 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1018 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1021 ret = init_mem(NB_MBUF);
1023 rte_exit(EXIT_FAILURE, "init_mem failed\n");
1025 /* init one TX queue */
1026 socketid = (uint8_t)rte_lcore_to_socket_id(rte_get_master_lcore());
1028 printf("txq=%d,%d,%d ", portid, 0, socketid);
1031 rte_eth_dev_info_get(portid, &dev_info);
1032 txconf = &dev_info.default_txconf;
1033 if (port_conf.rxmode.jumbo_frame)
1034 txconf->txq_flags = 0;
1035 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
1038 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1039 "port=%d\n", ret, portid);
1044 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1045 if (rte_lcore_is_enabled(lcore_id) == 0)
1047 qconf = &lcore_conf[lcore_id];
1048 qconf->tx_queue_id = 0;
1050 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1052 /* init RX queues */
1053 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1054 portid = qconf->rx_queue_list[queue].port_id;
1055 queueid = qconf->rx_queue_list[queue].queue_id;
1058 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
1062 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1065 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1067 pktmbuf_pool[socketid]);
1069 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
1070 "port=%d\n", ret, portid);
1076 for (portid = 0; portid < nb_ports; portid++) {
1077 if ((enabled_port_mask & (1 << portid)) == 0) {
1081 ret = rte_eth_dev_start(portid);
1083 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1086 printf("done: Port %d\n", portid);
1090 /* launch per-lcore init on every lcore */
1091 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1092 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1093 if (rte_eal_wait_lcore(lcore_id) < 0)