4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <sys/types.h>
41 #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>
52 #include <rte_tailq.h>
54 #include <rte_per_lcore.h>
55 #include <rte_launch.h>
56 #include <rte_atomic.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>
78 #define APP_LOOKUP_EXACT_MATCH 0
79 #define APP_LOOKUP_LPM 1
80 #define DO_RFC_1812_CHECKS
82 //#define APP_LOOKUP_METHOD APP_LOOKUP_EXACT_MATCH
83 #ifndef APP_LOOKUP_METHOD
84 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
87 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
89 #include <rte_hash_crc.h>
90 #include <rte_jhash.h>
91 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
94 #error "APP_LOOKUP_METHOD set to incorrect value"
97 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
101 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
105 * RX and TX Prefetch, Host, and Write-back threshold values should be
106 * carefully set for optimal performance. Consult the network
107 * controller's datasheet and supporting DPDK documentation for guidance
108 * on how these parameters should be set.
110 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
111 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
112 #define RX_WTHRESH 4 /**< Default values of RX write-back threshold reg. */
115 * These default values are optimized for use with the Intel(R) 82599 10 GbE
116 * Controller and the DPDK ixgbe PMD. Consider using other values for other
117 * network controllers and/or network drivers.
119 #define TX_PTHRESH 36 /**< Default values of TX prefetch threshold reg. */
120 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */
121 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */
123 #define MAX_PKT_BURST 32
124 #define BURST_TX_DRAIN 200000ULL /* around 100us at 2 Ghz */
130 /* Configure how many packets ahead to prefetch, when reading packets */
131 #define PREFETCH_OFFSET 3
134 * Configurable number of RX/TX ring descriptors
136 #define RTE_TEST_RX_DESC_DEFAULT 128
137 #define RTE_TEST_TX_DESC_DEFAULT 512
138 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
139 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
141 /* ethernet addresses of ports */
142 static struct ether_addr ports_eth_addr[MAX_PORTS];
144 /* mask of enabled ports */
145 static uint32_t enabled_port_mask = 0;
146 static int numa_on = 1; /**< NUMA is enabled by default. */
150 struct rte_mbuf *m_table[MAX_PKT_BURST];
153 struct lcore_rx_queue {
156 } __rte_cache_aligned;
158 #define MAX_RX_QUEUE_PER_LCORE 16
159 #define MAX_TX_QUEUE_PER_PORT 1
160 #define MAX_RX_QUEUE_PER_PORT 1
162 #define MAX_LCORE_PARAMS 1024
163 struct lcore_params {
167 } __rte_cache_aligned;
169 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
170 static struct lcore_params lcore_params_array_default[] = {
182 static struct lcore_params * lcore_params = lcore_params_array_default;
183 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
184 sizeof(lcore_params_array_default[0]);
186 static struct rte_eth_conf port_conf = {
189 .header_split = 0, /**< Header Split disabled */
190 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
191 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
192 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
193 .hw_strip_crc = 1, /**< CRC stripped by hardware */
198 .rss_hf = ETH_RSS_IPV4,
205 static const struct rte_eth_rxconf rx_conf = {
207 .pthresh = RX_PTHRESH,
208 .hthresh = RX_HTHRESH,
209 .wthresh = RX_WTHRESH,
213 static const struct rte_eth_txconf tx_conf = {
215 .pthresh = TX_PTHRESH,
216 .hthresh = TX_HTHRESH,
217 .wthresh = TX_WTHRESH,
219 .tx_free_thresh = 0, /* Use PMD default values */
220 .tx_rs_thresh = 0, /* Use PMD default values */
223 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
226 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
233 } __attribute__((__packed__));
236 struct ipv4_5tuple key;
240 static struct l3fwd_route l3fwd_route_array[] = {
241 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
242 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
243 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
244 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
247 typedef struct rte_hash lookup_struct_t;
248 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
250 #define L3FWD_HASH_ENTRIES 1024
251 struct rte_hash_parameters l3fwd_hash_params = {
252 .name = "l3fwd_hash_0",
253 .entries = L3FWD_HASH_ENTRIES,
255 .key_len = sizeof(struct ipv4_5tuple),
256 .hash_func = rte_hash_crc,
257 .hash_func_init_val = 0,
258 .socket_id = SOCKET0,
261 #define L3FWD_NUM_ROUTES \
262 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
264 static uint8_t l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
267 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
274 static struct l3fwd_route l3fwd_route_array[] = {
275 {IPv4(1,1,1,0), 24, 0},
276 {IPv4(2,1,1,0), 24, 1},
277 {IPv4(3,1,1,0), 24, 2},
278 {IPv4(4,1,1,0), 24, 3},
279 {IPv4(5,1,1,0), 24, 4},
280 {IPv4(6,1,1,0), 24, 5},
281 {IPv4(7,1,1,0), 24, 6},
282 {IPv4(8,1,1,0), 24, 7},
285 #define L3FWD_NUM_ROUTES \
286 (sizeof(l3fwd_route_array) / sizeof(l3fwd_route_array[0]))
288 #define L3FWD_LPM_MAX_RULES 1024
290 typedef struct rte_lpm lookup_struct_t;
291 static lookup_struct_t *l3fwd_lookup_struct[NB_SOCKETS];
296 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
297 uint16_t tx_queue_id;
298 struct mbuf_table tx_mbufs[MAX_PORTS];
299 lookup_struct_t * lookup_struct;
300 } __rte_cache_aligned;
302 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
304 /* Send burst of packets on an output interface */
306 send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
308 struct rte_mbuf **m_table;
312 queueid = qconf->tx_queue_id;
313 m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
315 ret = rte_eth_tx_burst(port, queueid, m_table, n);
316 if (unlikely(ret < n)) {
318 rte_pktmbuf_free(m_table[ret]);
325 /* Enqueue a single packet, and send burst if queue is filled */
327 send_single_packet(struct rte_mbuf *m, uint8_t port)
331 struct lcore_conf *qconf;
333 lcore_id = rte_lcore_id();
335 qconf = &lcore_conf[lcore_id];
336 len = qconf->tx_mbufs[port].len;
337 qconf->tx_mbufs[port].m_table[len] = m;
340 /* enough pkts to be sent */
341 if (unlikely(len == MAX_PKT_BURST)) {
342 send_burst(qconf, MAX_PKT_BURST, port);
346 qconf->tx_mbufs[port].len = len;
350 #ifdef DO_RFC_1812_CHECKS
352 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
354 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
356 * 1. The packet length reported by the Link Layer must be large
357 * enough to hold the minimum length legal IP datagram (20 bytes).
359 if (link_len < sizeof(struct ipv4_hdr))
362 /* 2. The IP checksum must be correct. */
363 /* this is checked in H/W */
366 * 3. The IP version number must be 4. If the version number is not 4
367 * then the packet may be another version of IP, such as IPng or
370 if (((pkt->version_ihl) >> 4) != 4)
373 * 4. The IP header length field must be large enough to hold the
374 * minimum length legal IP datagram (20 bytes = 5 words).
376 if ((pkt->version_ihl & 0xf) < 5)
380 * 5. The IP total length field must be large enough to hold the IP
381 * datagram header, whose length is specified in the IP header length
384 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
391 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
393 print_key(struct ipv4_5tuple key)
395 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, proto = %d\n",
396 (unsigned)key.ip_dst, (unsigned)key.ip_src, key.port_dst, key.port_src, key.proto);
399 static inline uint8_t
400 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, 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 (uint8_t)((ret < 0)? portid : l3fwd_out_if[ret]);
437 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
438 static inline uint8_t
439 get_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
443 return (uint8_t) ((rte_lpm_lookup(l3fwd_lookup_struct,
444 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
450 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid, lookup_struct_t * l3fwd_lookup_struct)
452 struct ether_hdr *eth_hdr;
453 struct ipv4_hdr *ipv4_hdr;
457 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
459 ipv4_hdr = (struct ipv4_hdr *)(rte_pktmbuf_mtod(m, unsigned char *) +
460 sizeof(struct ether_hdr));
462 #ifdef DO_RFC_1812_CHECKS
463 /* Check to make sure the packet is valid (RFC1812) */
464 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt.pkt_len) < 0) {
470 dst_port = get_dst_port(ipv4_hdr, portid, l3fwd_lookup_struct);
471 if (dst_port >= MAX_PORTS || (enabled_port_mask & 1 << dst_port) == 0)
474 /* 00:09:c0:00:00:xx */
475 tmp = ð_hdr->d_addr.addr_bytes[0];
476 *((uint64_t *)tmp) = 0x000000c00900 + (dst_port << 24);
478 #ifdef DO_RFC_1812_CHECKS
479 /* Update time to live and header checksum */
480 --(ipv4_hdr->time_to_live);
481 ++(ipv4_hdr->hdr_checksum);
485 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
487 send_single_packet(m, dst_port);
491 /* main processing loop */
492 static __attribute__((noreturn)) int
493 main_loop(__attribute__((unused)) void *dummy)
495 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
497 uint64_t prev_tsc = 0;
498 uint64_t diff_tsc, cur_tsc;
500 uint8_t portid, queueid;
501 struct lcore_conf *qconf;
503 lcore_id = rte_lcore_id();
504 qconf = &lcore_conf[lcore_id];
506 if (qconf->n_rx_queue == 0) {
507 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
511 RTE_LOG(INFO, L3FWD, "entering main loop on lcore %u\n", lcore_id);
513 for (i = 0; i < qconf->n_rx_queue; i++) {
515 portid = qconf->rx_queue_list[i].port_id;
516 queueid = qconf->rx_queue_list[i].queue_id;
517 RTE_LOG(INFO, L3FWD, " -- lcoreid=%u portid=%hhu rxqueueid=%hhu\n", lcore_id,
523 cur_tsc = rte_rdtsc();
526 * TX burst queue drain
528 diff_tsc = cur_tsc - prev_tsc;
529 if (unlikely(diff_tsc > BURST_TX_DRAIN)) {
532 * This could be optimized (use queueid instead of
533 * portid), but it is not called so often
535 for (portid = 0; portid < MAX_PORTS; portid++) {
536 if (qconf->tx_mbufs[portid].len == 0)
538 send_burst(&lcore_conf[lcore_id],
539 qconf->tx_mbufs[portid].len,
541 qconf->tx_mbufs[portid].len = 0;
548 * Read packet from RX queues
550 for (i = 0; i < qconf->n_rx_queue; ++i) {
552 portid = qconf->rx_queue_list[i].port_id;
553 queueid = qconf->rx_queue_list[i].queue_id;
554 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, MAX_PKT_BURST);
556 /* Prefetch first packets */
557 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
558 rte_prefetch0(rte_pktmbuf_mtod(
559 pkts_burst[j], void *));
562 /* Prefetch and forward already prefetched packets */
563 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
564 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
565 j + PREFETCH_OFFSET], void *));
566 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
569 /* Forward remaining prefetched packets */
570 for (; j < nb_rx; j++) {
571 l3fwd_simple_forward(pkts_burst[j], portid, qconf->lookup_struct);
578 check_lcore_params(void)
580 uint8_t queue, lcore;
584 for (i = 0; i < nb_lcore_params; ++i) {
585 queue = lcore_params[i].queue_id;
586 if (queue >= MAX_RX_QUEUE_PER_PORT) {
587 printf("invalid queue number: %hhu\n", queue);
590 lcore = lcore_params[i].lcore_id;
591 if (!rte_lcore_is_enabled(lcore)) {
592 printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
595 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
597 printf("warning: lcore %hhu is on socket %d with numa off \n",
605 check_port_config(const unsigned nb_ports)
610 for (i = 0; i < nb_lcore_params; ++i) {
611 portid = lcore_params[i].port_id;
612 if ((enabled_port_mask & (1 << portid)) == 0) {
613 printf("port %u is not enabled in port mask\n", portid);
616 if (portid >= nb_ports) {
617 printf("port %u is not present on the board\n", portid);
625 get_port_n_rx_queues(const uint8_t port)
630 for (i = 0; i < nb_lcore_params; ++i) {
631 if (lcore_params[i].port_id == port && lcore_params[i].queue_id > queue)
632 queue = lcore_params[i].queue_id;
634 return (uint8_t)(++queue);
638 init_lcore_rx_queues(void)
640 uint16_t i, nb_rx_queue;
643 for (i = 0; i < nb_lcore_params; ++i) {
644 lcore = lcore_params[i].lcore_id;
645 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
646 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
647 printf("error: too many queues (%u) for lcore: %u\n",
648 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
651 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
652 lcore_params[i].port_id;
653 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
654 lcore_params[i].queue_id;
655 lcore_conf[lcore].n_rx_queue++;
663 print_usage(const char *prgname)
665 printf ("%s [EAL options] -- -p PORTMASK"
666 " [--config (port,queue,lcore)[,(port,queue,lcore]]\n"
667 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
668 " --config (port,queue,lcore): rx queues configuration\n"
669 " --no-numa: optional, disable numa awareness\n",
674 parse_portmask(const char *portmask)
679 /* parse hexadecimal string */
680 pm = strtoul(portmask, &end, 16);
681 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
691 parse_config(const char *q_arg)
694 const char *p, *p0 = q_arg;
702 unsigned long int_fld[_NUM_FLD];
703 char *str_fld[_NUM_FLD];
709 while ((p = strchr(p0,'(')) != NULL) {
711 if((p0 = strchr(p,')')) == NULL)
715 if(size >= sizeof(s))
718 rte_snprintf(s, sizeof(s), "%.*s", size, p);
719 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
721 for (i = 0; i < _NUM_FLD; i++){
723 int_fld[i] = strtoul(str_fld[i], &end, 0);
724 if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
727 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
728 printf("exceeded max number of lcore params: %hu\n",
732 lcore_params_array[nb_lcore_params].port_id = (uint8_t)int_fld[FLD_PORT];
733 lcore_params_array[nb_lcore_params].queue_id = (uint8_t)int_fld[FLD_QUEUE];
734 lcore_params_array[nb_lcore_params].lcore_id = (uint8_t)int_fld[FLD_LCORE];
737 lcore_params = lcore_params_array;
741 /* Parse the argument given in the command line of the application */
743 parse_args(int argc, char **argv)
748 char *prgname = argv[0];
749 static struct option lgopts[] = {
751 {"no-numa", 0, 0, 0},
757 while ((opt = getopt_long(argc, argvopt, "p:",
758 lgopts, &option_index)) != EOF) {
763 enabled_port_mask = parse_portmask(optarg);
764 if (enabled_port_mask == 0) {
765 printf("invalid portmask\n");
766 print_usage(prgname);
773 if (!strcmp(lgopts[option_index].name, "config")) {
774 ret = parse_config(optarg);
776 printf("invalid config\n");
777 print_usage(prgname);
782 if (!strcmp(lgopts[option_index].name, "no-numa")) {
783 printf("numa is disabled \n");
789 print_usage(prgname);
795 argv[optind-1] = prgname;
798 optind = 0; /* reset getopt lib */
803 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
805 printf ("%s%02X:%02X:%02X:%02X:%02X:%02X", name,
806 eth_addr->addr_bytes[0],
807 eth_addr->addr_bytes[1],
808 eth_addr->addr_bytes[2],
809 eth_addr->addr_bytes[3],
810 eth_addr->addr_bytes[4],
811 eth_addr->addr_bytes[5]);
814 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
816 setup_hash(int socketid)
823 rte_snprintf(s, sizeof(s), "l3fwd_hash_%d", socketid);
824 l3fwd_hash_params.name = s;
825 l3fwd_hash_params.socket_id = socketid;
826 l3fwd_lookup_struct[socketid] = rte_hash_create(&l3fwd_hash_params);
827 if (l3fwd_lookup_struct[socketid] == NULL)
828 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
829 "socket %d\n", socketid);
831 /* populate the hash */
832 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
833 ret = rte_hash_add_key (l3fwd_lookup_struct[socketid],
834 (void *) &l3fwd_route_array[i].key);
836 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
837 "l3fwd hash on socket %d\n", i, socketid);
839 l3fwd_out_if[ret] = l3fwd_route_array[i].if_out;
840 printf("Hash: Adding key\n");
841 print_key(l3fwd_route_array[i].key);
846 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
848 setup_lpm(int socketid)
854 /* create the LPM table */
855 rte_snprintf(s, sizeof(s), "L3FWD_LPM_%d", socketid);
856 l3fwd_lookup_struct[socketid] = rte_lpm_create(s, socketid,
857 L3FWD_LPM_MAX_RULES, 0);
858 if (l3fwd_lookup_struct[socketid] == NULL)
859 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
860 " on socket %d\n", socketid);
862 /* populate the LPM table */
863 for (i = 0; i < L3FWD_NUM_ROUTES; i++) {
864 ret = rte_lpm_add(l3fwd_lookup_struct[socketid],
865 l3fwd_route_array[i].ip,
866 l3fwd_route_array[i].depth,
867 l3fwd_route_array[i].if_out);
870 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
871 "l3fwd LPM table on socket %d\n",
875 printf("LPM: Adding route 0x%08x / %d (%d)\n",
876 (unsigned)l3fwd_route_array[i].ip,
877 l3fwd_route_array[i].depth,
878 l3fwd_route_array[i].if_out);
886 struct lcore_conf *qconf;
891 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
892 if (rte_lcore_is_enabled(lcore_id) == 0)
896 socketid = rte_lcore_to_socket_id(lcore_id);
900 if (socketid >= NB_SOCKETS) {
901 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
902 socketid, lcore_id, NB_SOCKETS);
904 if (pktmbuf_pool[socketid] == NULL) {
905 rte_snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
906 pktmbuf_pool[socketid] =
907 rte_mempool_create(s, NB_MBUF, MBUF_SIZE, 32,
908 sizeof(struct rte_pktmbuf_pool_private),
909 rte_pktmbuf_pool_init, NULL,
910 rte_pktmbuf_init, NULL,
912 if (pktmbuf_pool[socketid] == NULL)
913 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n", socketid);
915 printf("Allocated mbuf pool on socket %d\n", socketid);
917 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
920 setup_hash(socketid);
923 qconf = &lcore_conf[lcore_id];
924 qconf->lookup_struct = l3fwd_lookup_struct[socketid];
930 MAIN(int argc, char **argv)
932 struct lcore_conf *qconf;
937 uint8_t portid, nb_rx_queue, queue, socketid;
940 ret = rte_eal_init(argc, argv);
942 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
946 /* parse application arguments (after the EAL ones) */
947 ret = parse_args(argc, argv);
949 rte_exit(EXIT_FAILURE, "Invalid L3FWD-VF parameters\n");
951 if (check_lcore_params() < 0)
952 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
954 ret = init_lcore_rx_queues();
956 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
960 rte_exit(EXIT_FAILURE, "init_mem failed\n");
963 #ifdef RTE_LIBRTE_IGB_PMD
964 if (rte_igb_pmd_init() < 0)
965 rte_exit(EXIT_FAILURE, "Cannot init igb pmd\n");
967 #ifdef RTE_LIBRTE_IXGBE_PMD
968 if (rte_ixgbe_pmd_init() < 0)
969 rte_exit(EXIT_FAILURE, "Cannot init ixgbe pmd\n");
971 if (rte_ixgbevf_pmd_init() < 0)
972 rte_exit(EXIT_FAILURE, "Cannot init ixgbevf pmd\n");
975 if (rte_eal_pci_probe() < 0)
976 rte_exit(EXIT_FAILURE, "Cannot probe PCI\n");
978 nb_ports = rte_eth_dev_count();
979 if (nb_ports > MAX_PORTS)
980 nb_ports = MAX_PORTS;
982 if (check_port_config(nb_ports) < 0)
983 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
985 /* initialize all ports */
986 for (portid = 0; portid < nb_ports; portid++) {
987 /* skip ports that are not enabled */
988 if ((enabled_port_mask & (1 << portid)) == 0) {
989 printf("\nSkipping disabled port %d\n", portid);
994 printf("Initializing port %d ... ", portid );
997 /* must always equal(=1) */
998 nb_rx_queue = get_port_n_rx_queues(portid);
1000 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1001 nb_rx_queue, (unsigned)1 );
1002 ret = rte_eth_dev_configure(portid, nb_rx_queue, 1, &port_conf);
1004 rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
1007 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1008 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1011 /* init one TX queue */
1014 printf("txq=%d,%d ", 0, socketid);
1016 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
1017 socketid, &tx_conf);
1019 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
1020 "port=%d\n", ret, portid);
1025 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
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 portid = qconf->rx_queue_list[queue].port_id;
1036 queueid = qconf->rx_queue_list[queue].queue_id;
1039 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
1043 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1046 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1047 socketid, &rx_conf, pktmbuf_pool[socketid]);
1049 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
1050 "port=%d\n", ret, portid);
1056 for (portid = 0; portid < nb_ports; portid++) {
1057 if ((enabled_port_mask & (1 << portid)) == 0) {
1061 ret = rte_eth_dev_start(portid);
1063 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
1066 printf("done: Port %d\n", portid);
1070 /* launch per-lcore init on every lcore */
1071 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1072 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1073 if (rte_eal_wait_lcore(lcore_id) < 0)