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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12 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
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18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
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23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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>
52 #include <rte_launch.h>
53 #include <rte_atomic.h>
54 #include <rte_spinlock.h>
55 #include <rte_cycles.h>
56 #include <rte_prefetch.h>
57 #include <rte_lcore.h>
58 #include <rte_per_lcore.h>
59 #include <rte_branch_prediction.h>
60 #include <rte_interrupts.h>
62 #include <rte_random.h>
63 #include <rte_debug.h>
64 #include <rte_ether.h>
65 #include <rte_ethdev.h>
66 #include <rte_mempool.h>
71 #include <rte_string_fns.h>
73 #define APP_LOOKUP_EXACT_MATCH 0
74 #define APP_LOOKUP_LPM 1
75 #define DO_RFC_1812_CHECKS
77 //#define APP_LOOKUP_METHOD APP_LOOKUP_EXACT_MATCH
78 #ifndef APP_LOOKUP_METHOD
79 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
82 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
84 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
87 #error "APP_LOOKUP_METHOD set to incorrect value"
90 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
92 #define MEMPOOL_CACHE_SIZE 256
95 * This expression is used to calculate the number of mbufs needed depending on user input, taking
96 * into account memory for rx and tx hardware rings, cache per lcore and mtable per port per lcore.
97 * RTE_MAX is used to ensure that NB_MBUF never goes below a minimum value of 8192
100 #define NB_MBUF RTE_MAX ( \
101 (nb_ports*nb_rx_queue*nb_rxd + \
102 nb_ports*nb_lcores*MAX_PKT_BURST + \
103 nb_ports*n_tx_queue*nb_txd + \
104 nb_lcores*MEMPOOL_CACHE_SIZE), \
108 * RX and TX Prefetch, Host, and Write-back threshold values should be
109 * carefully set for optimal performance. Consult the network
110 * controller's datasheet and supporting DPDK documentation for guidance
111 * on how these parameters should be set.
113 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
114 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
115 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
118 * These default values are optimized for use with the Intel(R) 82599 10 GbE
119 * Controller and the DPDK ixgbe PMD. Consider using other values for other
120 * network controllers and/or network drivers.
122 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
123 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
124 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
126 #define MAX_PKT_BURST 32
127 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
133 /* Configure how many packets ahead to prefetch, when reading packets */
134 #define PREFETCH_OFFSET 3
137 * Configurable number of RX/TX ring descriptors
139 #define RTE_TEST_RX_DESC_DEFAULT 128
140 #define RTE_TEST_TX_DESC_DEFAULT 512
141 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
142 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
144 /* ethernet addresses of ports */
145 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
147 /* mask of enabled ports */
148 static uint32_t enabled_port_mask = 0;
149 static int numa_on = 1; /**< NUMA is enabled by default. */
153 struct rte_mbuf *m_table[MAX_PKT_BURST];
156 struct lcore_rx_queue {
159 } __rte_cache_aligned;
161 #define MAX_RX_QUEUE_PER_LCORE 16
162 #define MAX_TX_QUEUE_PER_PORT 1
163 #define MAX_RX_QUEUE_PER_PORT 1
165 #define MAX_LCORE_PARAMS 1024
166 struct lcore_params {
170 } __rte_cache_aligned;
172 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
173 static struct lcore_params lcore_params_array_default[] = {
185 static struct lcore_params * lcore_params = lcore_params_array_default;
186 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
187 sizeof(lcore_params_array_default[0]);
189 static struct rte_eth_conf port_conf = {
191 .mq_mode = ETH_MQ_RX_RSS,
192 .max_rx_pkt_len = ETHER_MAX_LEN,
194 .header_split = 0, /**< Header Split disabled */
195 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
196 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
197 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
198 .hw_strip_crc = 1, /**< CRC stripped by hardware */
203 .rss_hf = ETH_RSS_IP,
207 .mq_mode = ETH_MQ_TX_NONE,
211 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
214 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
217 #include <rte_hash_crc.h>
218 #define DEFAULT_HASH_FUNC rte_hash_crc
220 #include <rte_jhash.h>
221 #define DEFAULT_HASH_FUNC rte_jhash
230 } __attribute__((__packed__));
233 struct ipv4_5tuple key;
237 static struct l3fwd_route l3fwd_route_array[] = {
238 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
239 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
240 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
241 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
244 typedef struct rte_hash lookup_struct_t;
245 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
247 #define L3FWD_HASH_ENTRIES 1024
248 struct rte_hash_parameters l3fwd_hash_params = {
249 .name = "l3fwd_hash_0",
250 .entries = L3FWD_HASH_ENTRIES,
251 .key_len = sizeof(struct ipv4_5tuple),
252 .hash_func = DEFAULT_HASH_FUNC,
253 .hash_func_init_val = 0,
254 .socket_id = SOCKET0,
257 #define L3FWD_NUM_ROUTES \
258 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
260 static uint8_t l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
263 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
270 static struct l3fwd_route l3fwd_route_array[] = {
271 {IPv4(1,1,1,0), 24, 0},
272 {IPv4(2,1,1,0), 24, 1},
273 {IPv4(3,1,1,0), 24, 2},
274 {IPv4(4,1,1,0), 24, 3},
275 {IPv4(5,1,1,0), 24, 4},
276 {IPv4(6,1,1,0), 24, 5},
277 {IPv4(7,1,1,0), 24, 6},
278 {IPv4(8,1,1,0), 24, 7},
281 #define L3FWD_NUM_ROUTES \
282 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
284 #define L3FWD_LPM_MAX_RULES 1024
286 typedef struct rte_lpm lookup_struct_t;
287 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
292 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
293 uint16_t tx_queue_id;
294 struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
295 lookup_struct_t * lookup_struct;
296 } __rte_cache_aligned;
298 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
299 static rte_spinlock_t spinlock_conf[RTE_MAX_ETHPORTS] = {RTE_SPINLOCK_INITIALIZER};
300 /* Send burst of packets on an output interface */
302 send_burst(struct lcore_conf *qconf, uint16_t n, uint16_t port)
304 struct rte_mbuf **m_table;
308 queueid = qconf->tx_queue_id;
309 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
311 rte_spinlock_lock(&spinlock_conf[port]);
312 ret = rte_eth_tx_burst(port, queueid, m_table, n);
313 rte_spinlock_unlock(&spinlock_conf[port]);
315 if (unlikely(ret < n)) {
317 rte_pktmbuf_free(m_table[ret]);
324 /* Enqueue a single packet, and send burst if queue is filled */
326 send_single_packet(struct rte_mbuf *m, uint16_t port)
330 struct lcore_conf *qconf;
332 lcore_id = rte_lcore_id();
334 qconf = &lcore_conf[lcore_id];
335 len = qconf->tx_mbufs[port].len;
336 qconf->tx_mbufs[port].m_table[len] = m;
339 /* enough pkts to be sent */
340 if (unlikely(len == MAX_PKT_BURST)) {
341 send_burst(qconf, MAX_PKT_BURST, port);
345 qconf->tx_mbufs[port].len = len;
349 #ifdef DO_RFC_1812_CHECKS
351 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
353 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
355 * 1. The packet length reported by the Link Layer must be large
356 * enough to hold the minimum length legal IP datagram (20 bytes).
358 if (link_len < sizeof(struct ipv4_hdr))
361 /* 2. The IP checksum must be correct. */
362 /* this is checked in H/W */
365 * 3. The IP version number must be 4. If the version number is not 4
366 * then the packet may be another version of IP, such as IPng or
369 if (((pkt->version_ihl) >> 4) != 4)
372 * 4. The IP header length field must be large enough to hold the
373 * minimum length legal IP datagram (20 bytes = 5 words).
375 if ((pkt->version_ihl & 0xf) < 5)
379 * 5. The IP total length field must be large enough to hold the IP
380 * datagram header, whose length is specified in the IP header length
383 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
390 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
392 print_key(struct ipv4_5tuple key)
394 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, proto = %d\n",
395 (unsigned)key.ip_dst, (unsigned)key.ip_src, key.port_dst, key.port_src, key.proto);
398 static inline uint16_t
399 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
400 lookup_struct_t *l3fwd_lookup_struct)
402 struct ipv4_5tuple key;
407 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
408 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
409 key.proto = ipv4_hdr->next_proto_id;
411 switch (ipv4_hdr->next_proto_id) {
413 tcp = (struct tcp_hdr *)((unsigned char *) ipv4_hdr +
414 sizeof(struct ipv4_hdr));
415 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
416 key.port_src = rte_be_to_cpu_16(tcp->src_port);
420 udp = (struct udp_hdr *)((unsigned char *) ipv4_hdr +
421 sizeof(struct ipv4_hdr));
422 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
423 key.port_src = rte_be_to_cpu_16(udp->src_port);
431 /* Find destination port */
432 ret = rte_hash_lookup(l3fwd_lookup_struct, (const void *)&key);
433 return ((ret < 0) ? portid : l3fwd_out_if[ret]);
437 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
438 static inline uint32_t
439 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
440 lookup_struct_t *l3fwd_lookup_struct)
444 return ((rte_lpm_lookup(l3fwd_lookup_struct,
445 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0) ?
451 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
452 lookup_struct_t *l3fwd_lookup_struct)
454 struct ether_hdr *eth_hdr;
455 struct ipv4_hdr *ipv4_hdr;
459 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
461 ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
462 sizeof(struct ether_hdr));
464 #ifdef DO_RFC_1812_CHECKS
465 /* Check to make sure the packet is valid (RFC1812) */
466 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
472 dst_port = get_dst_port(ipv4_hdr, portid, l3fwd_lookup_struct);
473 if (dst_port >= RTE_MAX_ETHPORTS || (enabled_port_mask & 1 << dst_port) == 0)
476 /* 02:00:00:00:00:xx */
477 tmp = ð_hdr->d_addr.addr_bytes[0];
478 *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
480 #ifdef DO_RFC_1812_CHECKS
481 /* Update time to live and header checksum */
482 --(ipv4_hdr->time_to_live);
483 ++(ipv4_hdr->hdr_checksum);
487 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
489 send_single_packet(m, dst_port);
493 /* main processing loop */
495 main_loop(__attribute__((unused)) void *dummy)
497 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
499 uint64_t prev_tsc, diff_tsc, cur_tsc;
503 struct lcore_conf *qconf;
504 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
508 lcore_id = rte_lcore_id();
509 qconf = &lcore_conf[lcore_id];
511 if (qconf->n_rx_queue == 0) {
512 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
516 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
518 for (i = 0; i < qconf->n_rx_queue; i++) {
520 portid = qconf->rx_queue_list[i].port_id;
521 queueid = qconf->rx_queue_list[i].queue_id;
522 RTE_LOG(INFO, L3FWD, " --lcoreid=%u portid=%u rxqueueid=%hhu\n",
523 lcore_id, portid, queueid);
528 cur_tsc = rte_rdtsc();
531 * TX burst queue drain
533 diff_tsc = cur_tsc - prev_tsc;
534 if (unlikely(diff_tsc > drain_tsc)) {
537 * This could be optimized (use queueid instead of
538 * portid), but it is not called so often
540 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
541 if (qconf->tx_mbufs[portid].len == 0)
543 send_burst(&lcore_conf[lcore_id],
544 qconf->tx_mbufs[portid].len,
546 qconf->tx_mbufs[portid].len = 0;
553 * Read packet from RX queues
555 for (i = 0; i < qconf->n_rx_queue; ++i) {
557 portid = qconf->rx_queue_list[i].port_id;
558 queueid = qconf->rx_queue_list[i].queue_id;
559 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, MAX_PKT_BURST);
561 /* Prefetch first packets */
562 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
563 rte_prefetch0(rte_pktmbuf_mtod(
564 pkts_burst[j], void *));
567 /* Prefetch and forward already prefetched packets */
568 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
569 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
570 j + PREFETCH_OFFSET], void *));
571 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
574 /* Forward remaining prefetched packets */
575 for (; j < nb_rx; j++) {
576 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
583 check_lcore_params(void)
585 uint8_t queue, lcore;
589 for (i = 0; i < nb_lcore_params; ++i) {
590 queue = lcore_params[i].queue_id;
591 if (queue >= MAX_RX_QUEUE_PER_PORT) {
592 printf("invalid queue number: %hhu\n", queue);
595 lcore = lcore_params[i].lcore_id;
596 if (!rte_lcore_is_enabled(lcore)) {
597 printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
600 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
602 printf("warning: lcore %hhu is on socket %d with numa off \n",
610 check_port_config(const unsigned nb_ports)
615 for (i = 0; i < nb_lcore_params; ++i) {
616 portid = lcore_params[i].port_id;
617 if ((enabled_port_mask & (1 << portid)) == 0) {
618 printf("port %u is not enabled in port mask\n", portid);
621 if (portid >= nb_ports) {
622 printf("port %u is not present on the board\n", portid);
630 get_port_n_rx_queues(const uint16_t port)
635 for (i = 0; i < nb_lcore_params; ++i) {
636 if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
637 queue = lcore_params[i].queue_id;
639 return (uint8_t)(++queue);
643 init_lcore_rx_queues(void)
645 uint16_t i, nb_rx_queue;
648 for (i = 0; i < nb_lcore_params; ++i) {
649 lcore = lcore_params[i].lcore_id;
650 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
651 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
652 printf("error: too many queues (%u) for lcore: %u\n",
653 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
656 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
657 lcore_params[i].port_id;
658 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
659 lcore_params[i].queue_id;
660 lcore_conf[lcore].n_rx_queue++;
668 print_usage(const char *prgname)
670 printf ("%s [EAL options] -- -p PORTMASK"
671 " [--config (port,queue,lcore)[,(port,queue,lcore]]\n"
672 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
673 " --config (port,queue,lcore): rx queues configuration\n"
674 " --no-numa: optional, disable numa awareness\n",
678 /* Custom handling of signals to handle process terminal */
680 signal_handler(int signum)
683 uint16_t nb_ports = rte_eth_dev_count();
685 /* When we receive a SIGINT signal */
686 if (signum == SIGINT) {
687 for (portid = 0; portid < nb_ports; portid++) {
688 /* skip ports that are not enabled */
689 if ((enabled_port_mask & (1 << portid)) == 0)
691 rte_eth_dev_close(portid);
694 rte_exit(EXIT_SUCCESS, "\n User forced exit\n");
697 parse_portmask(const char *portmask)
702 /* parse hexadecimal string */
703 pm = strtoul(portmask, &end, 16);
704 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
714 parse_config(const char *q_arg)
717 const char *p, *p0 = q_arg;
725 unsigned long int_fld[_NUM_FLD];
726 char *str_fld[_NUM_FLD];
732 while ((p = strchr(p0,'(')) != NULL) {
734 if((p0 = strchr(p,')')) == NULL)
738 if(size >= sizeof(s))
741 snprintf(s, sizeof(s), "%.*s", size, p);
742 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
744 for (i = 0; i < _NUM_FLD; i++){
746 int_fld[i] = strtoul(str_fld[i], &end, 0);
747 if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
750 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
751 printf("exceeded max number of lcore params: %hu\n",
755 lcore_params_array[nb_lcore_params].port_id = int_fld[FLD_PORT];
756 lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
757 lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
760 lcore_params = lcore_params_array;
764 /* Parse the argument given in the command line of the application */
766 parse_args(int argc, char **argv)
771 char *prgname = argv[0];
772 static struct option lgopts[] = {
774 {"no-numa", 0, 0, 0},
780 while ((opt = getopt_long(argc, argvopt, "p:",
781 lgopts, &option_index)) != EOF) {
786 enabled_port_mask = parse_portmask(optarg);
787 if (enabled_port_mask == 0) {
788 printf("invalid portmask\n");
789 print_usage(prgname);
796 if (!strcmp(lgopts[option_index].name, "config")) {
797 ret = parse_config(optarg);
799 printf("invalid config\n");
800 print_usage(prgname);
805 if (!strcmp(lgopts[option_index].name, "no-numa")) {
806 printf("numa is disabled \n");
812 print_usage(prgname);
818 argv[optind-1] = prgname;
821 optind = 1; /* reset getopt lib */
826 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
828 char buf[ETHER_ADDR_FMT_SIZE];
829 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
830 printf("%s%s", name, buf);
833 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
835 setup_hash(int socketid)
842 snprintf(s, sizeof(s), "l3fwd_hash_%d", socketid);
843 l3fwd_hash_params.name = s;
844 l3fwd_hash_params.socket_id = socketid;
845 l3fwd_lookup_struct[socketid] = rte_hash_create(&l3fwd_hash_params);
846 if (l3fwd_lookup_struct[socketid] == NULL)
847 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
848 "socket %d\n", socketid);
850 /* populate the hash */
851 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
852 ret = rte_hash_add_key (l3fwd_lookup_struct[socketid],
853 (void *) &l3fwd_route_array[i].key);
855 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
856 "l3fwd hash on socket %d\n", i, socketid);
858 l3fwd_out_if[ret] = l3fwd_route_array[i].if_out;
859 printf("Hash: Adding key\n");
860 print_key(l3fwd_route_array[i].key);
865 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
867 setup_lpm(int socketid)
873 struct rte_lpm_config lpm_ipv4_config;
875 lpm_ipv4_config.max_rules = L3FWD_LPM_MAX_RULES;
876 lpm_ipv4_config.number_tbl8s = 256;
877 lpm_ipv4_config.flags = 0;
879 /* create the LPM table */
880 snprintf(s, sizeof(s), "L3FWD_LPM_%d", socketid);
881 l3fwd_lookup_struct[socketid] =
882 rte_lpm_create(s, socketid, &lpm_ipv4_config);
883 if (l3fwd_lookup_struct[socketid] == NULL)
884 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
885 " on socket %d\n", socketid);
887 /* populate the LPM table */
888 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
889 ret = rte_lpm_add(l3fwd_lookup_struct[socketid],
890 l3fwd_route_array[i].ip,
891 l3fwd_route_array[i].depth,
892 l3fwd_route_array[i].if_out);
895 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
896 "l3fwd LPM table on socket %d\n",
900 printf("LPM: Adding route 0x%08x / %d (%d)\n",
901 (unsigned)l3fwd_route_array[i].ip,
902 l3fwd_route_array[i].depth,
903 l3fwd_route_array[i].if_out);
909 init_mem(unsigned nb_mbuf)
911 struct lcore_conf *qconf;
916 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
917 if (rte_lcore_is_enabled(lcore_id) == 0)
921 socketid = rte_lcore_to_socket_id(lcore_id);
925 if (socketid >= NB_SOCKETS) {
926 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
927 socketid, lcore_id, NB_SOCKETS);
929 if (pktmbuf_pool[socketid] == NULL) {
930 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
931 pktmbuf_pool[socketid] = rte_pktmbuf_pool_create(s,
932 nb_mbuf, MEMPOOL_CACHE_SIZE, 0,
933 RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
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;
959 uint16_t queueid, portid;
963 uint8_t 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();
987 if (check_port_config(nb_ports) < 0)
988 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
990 nb_lcores = rte_lcore_count();
992 /* initialize all ports */
993 for (portid = 0; portid < nb_ports; portid++) {
994 /* skip ports that are not enabled */
995 if ((enabled_port_mask & (1 << portid)) == 0) {
996 printf("\nSkipping disabled port %d\n", portid);
1001 printf("Initializing port %d ... ", portid );
1004 /* must always equal(=1) */
1005 nb_rx_queue = get_port_n_rx_queues(portid);
1006 n_tx_queue = MAX_TX_QUEUE_PER_PORT;
1008 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1009 nb_rx_queue, (unsigned)1 );
1010 ret = rte_eth_dev_configure(portid, nb_rx_queue, n_tx_queue, &port_conf);
1012 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
1015 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
1018 rte_exit(EXIT_FAILURE,
1019 "Cannot adjust number of descriptors: err=%d, port=%d\n",
1022 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1023 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1026 ret = init_mem(NB_MBUF);
1028 rte_exit(EXIT_FAILURE, "init_mem failed\n");
1030 /* init one TX queue */
1031 socketid = (uint8_t)rte_lcore_to_socket_id(rte_get_master_lcore());
1033 printf("txq=%d,%d,%d ", portid, 0, socketid);
1036 rte_eth_dev_info_get(portid, &dev_info);
1037 txconf = &dev_info.default_txconf;
1038 if (port_conf.rxmode.jumbo_frame)
1039 txconf->txq_flags = 0;
1040 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
1043 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1044 "port=%d\n", ret, portid);
1049 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1050 if (rte_lcore_is_enabled(lcore_id) == 0)
1052 qconf = &lcore_conf[lcore_id];
1053 qconf->tx_queue_id = 0;
1055 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1057 /* init RX queues */
1058 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1059 portid = qconf->rx_queue_list[queue].port_id;
1060 queueid = qconf->rx_queue_list[queue].queue_id;
1063 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
1067 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1070 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1072 pktmbuf_pool[socketid]);
1074 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
1075 "port=%d\n", ret, portid);
1081 for (portid = 0; portid < nb_ports; portid++) {
1082 if ((enabled_port_mask & (1 << portid)) == 0) {
1086 ret = rte_eth_dev_start(portid);
1088 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1091 printf("done: Port %d\n", portid);
1095 /* launch per-lcore init on every lcore */
1096 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1097 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1098 if (rte_eal_wait_lcore(lcore_id) < 0)