4 * Copyright(c) 2010-2016 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,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
38 #include <sys/types.h>
40 #include <sys/queue.h>
47 #include <rte_common.h>
48 #include <rte_byteorder.h>
50 #include <rte_malloc.h>
51 #include <rte_memory.h>
52 #include <rte_memcpy.h>
53 #include <rte_memzone.h>
55 #include <rte_per_lcore.h>
56 #include <rte_launch.h>
57 #include <rte_atomic.h>
58 #include <rte_cycles.h>
59 #include <rte_prefetch.h>
60 #include <rte_lcore.h>
61 #include <rte_per_lcore.h>
62 #include <rte_branch_prediction.h>
63 #include <rte_interrupts.h>
65 #include <rte_random.h>
66 #include <rte_debug.h>
67 #include <rte_ether.h>
68 #include <rte_ethdev.h>
70 #include <rte_mempool.h>
75 #include <rte_string_fns.h>
76 #include <rte_timer.h>
77 #include <rte_power.h>
79 #include <rte_spinlock.h>
81 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
83 #define MAX_PKT_BURST 32
85 #define MIN_ZERO_POLL_COUNT 10
87 /* around 100ms at 2 Ghz */
88 #define TIMER_RESOLUTION_CYCLES 200000000ULL
90 #define TIMER_NUMBER_PER_SECOND 10
92 #define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND)
93 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
95 #define APP_LOOKUP_EXACT_MATCH 0
96 #define APP_LOOKUP_LPM 1
97 #define DO_RFC_1812_CHECKS
99 #ifndef APP_LOOKUP_METHOD
100 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
103 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
104 #include <rte_hash.h>
105 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
108 #error "APP_LOOKUP_METHOD set to incorrect value"
112 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
113 "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
114 #define IPv6_BYTES(addr) \
115 addr[0], addr[1], addr[2], addr[3], \
116 addr[4], addr[5], addr[6], addr[7], \
117 addr[8], addr[9], addr[10], addr[11],\
118 addr[12], addr[13],addr[14], addr[15]
121 #define MAX_JUMBO_PKT_LEN 9600
123 #define IPV6_ADDR_LEN 16
125 #define MEMPOOL_CACHE_SIZE 256
128 * This expression is used to calculate the number of mbufs needed depending on
129 * user input, taking into account memory for rx and tx hardware rings, cache
130 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
131 * NB_MBUF never goes below a minimum value of 8192.
134 #define NB_MBUF RTE_MAX ( \
135 (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
136 nb_ports*nb_lcores*MAX_PKT_BURST + \
137 nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
138 nb_lcores*MEMPOOL_CACHE_SIZE), \
141 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
145 /* Configure how many packets ahead to prefetch, when reading packets */
146 #define PREFETCH_OFFSET 3
149 * Configurable number of RX/TX ring descriptors
151 #define RTE_TEST_RX_DESC_DEFAULT 128
152 #define RTE_TEST_TX_DESC_DEFAULT 512
153 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
154 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
156 /* ethernet addresses of ports */
157 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
159 /* ethernet addresses of ports */
160 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
162 /* mask of enabled ports */
163 static uint32_t enabled_port_mask = 0;
164 /* Ports set in promiscuous mode off by default. */
165 static int promiscuous_on = 0;
166 /* NUMA is enabled by default. */
167 static int numa_on = 1;
169 enum freq_scale_hint_t
177 struct lcore_rx_queue {
180 enum freq_scale_hint_t freq_up_hint;
181 uint32_t zero_rx_packet_count;
183 } __rte_cache_aligned;
185 #define MAX_RX_QUEUE_PER_LCORE 16
186 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
187 #define MAX_RX_QUEUE_PER_PORT 128
189 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
192 #define MAX_LCORE_PARAMS 1024
193 struct lcore_params {
197 } __rte_cache_aligned;
199 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
200 static struct lcore_params lcore_params_array_default[] = {
212 static struct lcore_params * lcore_params = lcore_params_array_default;
213 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
214 sizeof(lcore_params_array_default[0]);
216 static struct rte_eth_conf port_conf = {
218 .mq_mode = ETH_MQ_RX_RSS,
219 .max_rx_pkt_len = ETHER_MAX_LEN,
221 .header_split = 0, /**< Header Split disabled */
222 .hw_ip_checksum = 1, /**< IP checksum offload enabled */
223 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
224 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
225 .hw_strip_crc = 0, /**< CRC stripped by hardware */
230 .rss_hf = ETH_RSS_UDP,
234 .mq_mode = ETH_MQ_TX_NONE,
242 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
245 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
247 #ifdef RTE_MACHINE_CPUFLAG_SSE4_2
248 #include <rte_hash_crc.h>
249 #define DEFAULT_HASH_FUNC rte_hash_crc
251 #include <rte_jhash.h>
252 #define DEFAULT_HASH_FUNC rte_jhash
261 } __attribute__((__packed__));
264 uint8_t ip_dst[IPV6_ADDR_LEN];
265 uint8_t ip_src[IPV6_ADDR_LEN];
269 } __attribute__((__packed__));
271 struct ipv4_l3fwd_route {
272 struct ipv4_5tuple key;
276 struct ipv6_l3fwd_route {
277 struct ipv6_5tuple key;
281 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
282 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
283 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
284 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
285 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
288 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
291 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
292 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
293 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
294 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
300 typedef struct rte_hash lookup_struct_t;
301 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
302 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
304 #define L3FWD_HASH_ENTRIES 1024
306 #define IPV4_L3FWD_NUM_ROUTES \
307 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
309 #define IPV6_L3FWD_NUM_ROUTES \
310 (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
312 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
313 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
316 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
317 struct ipv4_l3fwd_route {
323 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
324 {IPv4(1,1,1,0), 24, 0},
325 {IPv4(2,1,1,0), 24, 1},
326 {IPv4(3,1,1,0), 24, 2},
327 {IPv4(4,1,1,0), 24, 3},
328 {IPv4(5,1,1,0), 24, 4},
329 {IPv4(6,1,1,0), 24, 5},
330 {IPv4(7,1,1,0), 24, 6},
331 {IPv4(8,1,1,0), 24, 7},
334 #define IPV4_L3FWD_NUM_ROUTES \
335 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
337 #define IPV4_L3FWD_LPM_MAX_RULES 1024
339 typedef struct rte_lpm lookup_struct_t;
340 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
345 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
347 uint16_t tx_port_id[RTE_MAX_ETHPORTS];
348 uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
349 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
350 lookup_struct_t * ipv4_lookup_struct;
351 lookup_struct_t * ipv6_lookup_struct;
352 } __rte_cache_aligned;
355 /* total sleep time in ms since last frequency scaling down */
357 /* number of long sleep recently */
358 uint32_t nb_long_sleep;
359 /* freq. scaling up trend */
361 /* total packet processed recently */
362 uint64_t nb_rx_processed;
363 /* total iterations looped recently */
364 uint64_t nb_iteration_looped;
366 } __rte_cache_aligned;
368 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
369 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
370 static struct rte_timer power_timers[RTE_MAX_LCORE];
372 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
373 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
374 unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
376 /* exit signal handler */
378 signal_exit_now(int sigtype)
383 if (sigtype == SIGINT) {
384 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
385 if (rte_lcore_is_enabled(lcore_id) == 0)
388 /* init power management library */
389 ret = rte_power_exit(lcore_id);
391 rte_exit(EXIT_FAILURE, "Power management "
392 "library de-initialization failed on "
393 "core%u\n", lcore_id);
397 rte_exit(EXIT_SUCCESS, "User forced exit\n");
400 /* Freqency scale down timer callback */
402 power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
403 __attribute__((unused)) void *arg)
406 float sleep_time_ratio;
407 unsigned lcore_id = rte_lcore_id();
409 /* accumulate total execution time in us when callback is invoked */
410 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
411 (float)SCALING_PERIOD;
413 * check whether need to scale down frequency a step if it sleep a lot.
415 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
416 if (rte_power_freq_down)
417 rte_power_freq_down(lcore_id);
419 else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
420 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
422 * scale down a step if average packet per iteration less
425 if (rte_power_freq_down)
426 rte_power_freq_down(lcore_id);
430 * initialize another timer according to current frequency to ensure
431 * timer interval is relatively fixed.
433 hz = rte_get_timer_hz();
434 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
435 SINGLE, lcore_id, power_timer_cb, NULL);
437 stats[lcore_id].nb_rx_processed = 0;
438 stats[lcore_id].nb_iteration_looped = 0;
440 stats[lcore_id].sleep_time = 0;
443 /* Enqueue a single packet, and send burst if queue is filled */
445 send_single_packet(struct rte_mbuf *m, uint8_t port)
448 struct lcore_conf *qconf;
450 lcore_id = rte_lcore_id();
451 qconf = &lcore_conf[lcore_id];
453 rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
454 qconf->tx_buffer[port], m);
459 #ifdef DO_RFC_1812_CHECKS
461 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
463 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
465 * 1. The packet length reported by the Link Layer must be large
466 * enough to hold the minimum length legal IP datagram (20 bytes).
468 if (link_len < sizeof(struct ipv4_hdr))
471 /* 2. The IP checksum must be correct. */
472 /* this is checked in H/W */
475 * 3. The IP version number must be 4. If the version number is not 4
476 * then the packet may be another version of IP, such as IPng or
479 if (((pkt->version_ihl) >> 4) != 4)
482 * 4. The IP header length field must be large enough to hold the
483 * minimum length legal IP datagram (20 bytes = 5 words).
485 if ((pkt->version_ihl & 0xf) < 5)
489 * 5. The IP total length field must be large enough to hold the IP
490 * datagram header, whose length is specified in the IP header length
493 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
500 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
502 print_ipv4_key(struct ipv4_5tuple key)
504 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
505 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
506 key.port_dst, key.port_src, key.proto);
509 print_ipv6_key(struct ipv6_5tuple key)
511 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
512 "port dst = %d, port src = %d, proto = %d\n",
513 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
514 key.port_dst, key.port_src, key.proto);
517 static inline uint8_t
518 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
519 lookup_struct_t * ipv4_l3fwd_lookup_struct)
521 struct ipv4_5tuple key;
526 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
527 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
528 key.proto = ipv4_hdr->next_proto_id;
530 switch (ipv4_hdr->next_proto_id) {
532 tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
533 sizeof(struct ipv4_hdr));
534 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
535 key.port_src = rte_be_to_cpu_16(tcp->src_port);
539 udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
540 sizeof(struct ipv4_hdr));
541 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
542 key.port_src = rte_be_to_cpu_16(udp->src_port);
551 /* Find destination port */
552 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
553 return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]);
556 static inline uint8_t
557 get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint8_t portid,
558 lookup_struct_t *ipv6_l3fwd_lookup_struct)
560 struct ipv6_5tuple key;
565 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
566 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
568 key.proto = ipv6_hdr->proto;
570 switch (ipv6_hdr->proto) {
572 tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
573 sizeof(struct ipv6_hdr));
574 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
575 key.port_src = rte_be_to_cpu_16(tcp->src_port);
579 udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
580 sizeof(struct ipv6_hdr));
581 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
582 key.port_src = rte_be_to_cpu_16(udp->src_port);
591 /* Find destination port */
592 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
593 return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]);
597 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
598 static inline uint8_t
599 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
600 lookup_struct_t *ipv4_l3fwd_lookup_struct)
604 return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
605 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
611 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
612 struct lcore_conf *qconf)
614 struct ether_hdr *eth_hdr;
615 struct ipv4_hdr *ipv4_hdr;
619 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
621 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
622 /* Handle IPv4 headers.*/
624 rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
625 sizeof(struct ether_hdr));
627 #ifdef DO_RFC_1812_CHECKS
628 /* Check to make sure the packet is valid (RFC1812) */
629 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
635 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
636 qconf->ipv4_lookup_struct);
637 if (dst_port >= RTE_MAX_ETHPORTS ||
638 (enabled_port_mask & 1 << dst_port) == 0)
641 /* 02:00:00:00:00:xx */
642 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
643 *((uint64_t *)d_addr_bytes) =
644 0x000000000002 + ((uint64_t)dst_port << 40);
646 #ifdef DO_RFC_1812_CHECKS
647 /* Update time to live and header checksum */
648 --(ipv4_hdr->time_to_live);
649 ++(ipv4_hdr->hdr_checksum);
653 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
655 send_single_packet(m, dst_port);
656 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
657 /* Handle IPv6 headers.*/
658 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
659 struct ipv6_hdr *ipv6_hdr;
662 rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
663 sizeof(struct ether_hdr));
665 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
666 qconf->ipv6_lookup_struct);
668 if (dst_port >= RTE_MAX_ETHPORTS ||
669 (enabled_port_mask & 1 << dst_port) == 0)
672 /* 02:00:00:00:00:xx */
673 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
674 *((uint64_t *)d_addr_bytes) =
675 0x000000000002 + ((uint64_t)dst_port << 40);
678 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
680 send_single_packet(m, dst_port);
682 /* We don't currently handle IPv6 packets in LPM mode. */
690 #define MINIMUM_SLEEP_TIME 1
691 #define SUSPEND_THRESHOLD 300
693 static inline uint32_t
694 power_idle_heuristic(uint32_t zero_rx_packet_count)
696 /* If zero count is less than 100, sleep 1us */
697 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
698 return MINIMUM_SLEEP_TIME;
699 /* If zero count is less than 1000, sleep 100 us which is the
700 minimum latency switching from C3/C6 to C0
703 return SUSPEND_THRESHOLD;
708 static inline enum freq_scale_hint_t
709 power_freq_scaleup_heuristic(unsigned lcore_id,
714 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
717 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
718 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
719 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
720 #define FREQ_UP_TREND1_ACC 1
721 #define FREQ_UP_TREND2_ACC 100
722 #define FREQ_UP_THRESHOLD 10000
724 if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
725 FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
726 stats[lcore_id].trend = 0;
728 } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
729 FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
730 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
731 else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
732 FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
733 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
735 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
736 stats[lcore_id].trend = 0;
744 * force polling thread sleep until one-shot rx interrupt triggers
753 sleep_until_rx_interrupt(int num)
755 struct rte_epoll_event event[num];
757 uint8_t port_id, queue_id;
760 RTE_LOG(INFO, L3FWD_POWER,
761 "lcore %u sleeps until interrupt triggers\n",
764 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
765 for (i = 0; i < n; i++) {
766 data = event[i].epdata.data;
767 port_id = ((uintptr_t)data) >> CHAR_BIT;
768 queue_id = ((uintptr_t)data) &
769 RTE_LEN2MASK(CHAR_BIT, uint8_t);
770 rte_eth_dev_rx_intr_disable(port_id, queue_id);
771 RTE_LOG(INFO, L3FWD_POWER,
772 "lcore %u is waked up from rx interrupt on"
773 " port %d queue %d\n",
774 rte_lcore_id(), port_id, queue_id);
780 static void turn_on_intr(struct lcore_conf *qconf)
783 struct lcore_rx_queue *rx_queue;
784 uint8_t port_id, queue_id;
786 for (i = 0; i < qconf->n_rx_queue; ++i) {
787 rx_queue = &(qconf->rx_queue_list[i]);
788 port_id = rx_queue->port_id;
789 queue_id = rx_queue->queue_id;
791 rte_spinlock_lock(&(locks[port_id]));
792 rte_eth_dev_rx_intr_enable(port_id, queue_id);
793 rte_spinlock_unlock(&(locks[port_id]));
797 static int event_register(struct lcore_conf *qconf)
799 struct lcore_rx_queue *rx_queue;
800 uint8_t portid, queueid;
805 for (i = 0; i < qconf->n_rx_queue; ++i) {
806 rx_queue = &(qconf->rx_queue_list[i]);
807 portid = rx_queue->port_id;
808 queueid = rx_queue->queue_id;
809 data = portid << CHAR_BIT | queueid;
811 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
812 RTE_EPOLL_PER_THREAD,
814 (void *)((uintptr_t)data));
822 /* main processing loop */
824 main_loop(__attribute__((unused)) void *dummy)
826 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
828 uint64_t prev_tsc, diff_tsc, cur_tsc;
829 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
831 uint8_t portid, queueid;
832 struct lcore_conf *qconf;
833 struct lcore_rx_queue *rx_queue;
834 enum freq_scale_hint_t lcore_scaleup_hint;
835 uint32_t lcore_rx_idle_count = 0;
836 uint32_t lcore_idle_hint = 0;
839 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
843 lcore_id = rte_lcore_id();
844 qconf = &lcore_conf[lcore_id];
846 if (qconf->n_rx_queue == 0) {
847 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
851 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
853 for (i = 0; i < qconf->n_rx_queue; i++) {
854 portid = qconf->rx_queue_list[i].port_id;
855 queueid = qconf->rx_queue_list[i].queue_id;
856 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu "
857 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
860 /* add into event wait list */
861 if (event_register(qconf) == 0)
864 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
867 stats[lcore_id].nb_iteration_looped++;
869 cur_tsc = rte_rdtsc();
870 cur_tsc_power = cur_tsc;
873 * TX burst queue drain
875 diff_tsc = cur_tsc - prev_tsc;
876 if (unlikely(diff_tsc > drain_tsc)) {
877 for (i = 0; i < qconf->n_tx_port; ++i) {
878 portid = qconf->tx_port_id[i];
879 rte_eth_tx_buffer_flush(portid,
880 qconf->tx_queue_id[portid],
881 qconf->tx_buffer[portid]);
886 diff_tsc_power = cur_tsc_power - prev_tsc_power;
887 if (diff_tsc_power > TIMER_RESOLUTION_CYCLES) {
889 prev_tsc_power = cur_tsc_power;
894 * Read packet from RX queues
896 lcore_scaleup_hint = FREQ_CURRENT;
897 lcore_rx_idle_count = 0;
898 for (i = 0; i < qconf->n_rx_queue; ++i) {
899 rx_queue = &(qconf->rx_queue_list[i]);
900 rx_queue->idle_hint = 0;
901 portid = rx_queue->port_id;
902 queueid = rx_queue->queue_id;
904 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
907 stats[lcore_id].nb_rx_processed += nb_rx;
908 if (unlikely(nb_rx == 0)) {
910 * no packet received from rx queue, try to
911 * sleep for a while forcing CPU enter deeper
914 rx_queue->zero_rx_packet_count++;
916 if (rx_queue->zero_rx_packet_count <=
920 rx_queue->idle_hint = power_idle_heuristic(\
921 rx_queue->zero_rx_packet_count);
922 lcore_rx_idle_count++;
924 rx_queue->zero_rx_packet_count = 0;
927 * do not scale up frequency immediately as
928 * user to kernel space communication is costly
929 * which might impact packet I/O for received
932 rx_queue->freq_up_hint =
933 power_freq_scaleup_heuristic(lcore_id,
937 /* Prefetch first packets */
938 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
939 rte_prefetch0(rte_pktmbuf_mtod(
940 pkts_burst[j], void *));
943 /* Prefetch and forward already prefetched packets */
944 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
945 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
946 j + PREFETCH_OFFSET], void *));
947 l3fwd_simple_forward(pkts_burst[j], portid,
951 /* Forward remaining prefetched packets */
952 for (; j < nb_rx; j++) {
953 l3fwd_simple_forward(pkts_burst[j], portid,
958 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
959 for (i = 1, lcore_scaleup_hint =
960 qconf->rx_queue_list[0].freq_up_hint;
961 i < qconf->n_rx_queue; ++i) {
962 rx_queue = &(qconf->rx_queue_list[i]);
963 if (rx_queue->freq_up_hint >
966 rx_queue->freq_up_hint;
969 if (lcore_scaleup_hint == FREQ_HIGHEST) {
970 if (rte_power_freq_max)
971 rte_power_freq_max(lcore_id);
972 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
973 if (rte_power_freq_up)
974 rte_power_freq_up(lcore_id);
978 * All Rx queues empty in recent consecutive polls,
979 * sleep in a conservative manner, meaning sleep as
982 for (i = 1, lcore_idle_hint =
983 qconf->rx_queue_list[0].idle_hint;
984 i < qconf->n_rx_queue; ++i) {
985 rx_queue = &(qconf->rx_queue_list[i]);
986 if (rx_queue->idle_hint < lcore_idle_hint)
987 lcore_idle_hint = rx_queue->idle_hint;
990 if (lcore_idle_hint < SUSPEND_THRESHOLD)
992 * execute "pause" instruction to avoid context
993 * switch which generally take hundred of
994 * microseconds for short sleep.
996 rte_delay_us(lcore_idle_hint);
998 /* suspend until rx interrupt trigges */
1000 turn_on_intr(qconf);
1001 sleep_until_rx_interrupt(
1004 /* start receiving packets immediately */
1007 stats[lcore_id].sleep_time += lcore_idle_hint;
1013 check_lcore_params(void)
1015 uint8_t queue, lcore;
1019 for (i = 0; i < nb_lcore_params; ++i) {
1020 queue = lcore_params[i].queue_id;
1021 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1022 printf("invalid queue number: %hhu\n", queue);
1025 lcore = lcore_params[i].lcore_id;
1026 if (!rte_lcore_is_enabled(lcore)) {
1027 printf("error: lcore %hhu is not enabled in lcore "
1031 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1033 printf("warning: lcore %hhu is on socket %d with numa "
1034 "off\n", lcore, socketid);
1041 check_port_config(const unsigned nb_ports)
1046 for (i = 0; i < nb_lcore_params; ++i) {
1047 portid = lcore_params[i].port_id;
1048 if ((enabled_port_mask & (1 << portid)) == 0) {
1049 printf("port %u is not enabled in port mask\n",
1053 if (portid >= nb_ports) {
1054 printf("port %u is not present on the board\n",
1063 get_port_n_rx_queues(const uint8_t port)
1068 for (i = 0; i < nb_lcore_params; ++i) {
1069 if (lcore_params[i].port_id == port &&
1070 lcore_params[i].queue_id > queue)
1071 queue = lcore_params[i].queue_id;
1073 return (uint8_t)(++queue);
1077 init_lcore_rx_queues(void)
1079 uint16_t i, nb_rx_queue;
1082 for (i = 0; i < nb_lcore_params; ++i) {
1083 lcore = lcore_params[i].lcore_id;
1084 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1085 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1086 printf("error: too many queues (%u) for lcore: %u\n",
1087 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1090 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1091 lcore_params[i].port_id;
1092 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1093 lcore_params[i].queue_id;
1094 lcore_conf[lcore].n_rx_queue++;
1102 print_usage(const char *prgname)
1104 printf ("%s [EAL options] -- -p PORTMASK -P"
1105 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1106 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1107 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1108 " -P : enable promiscuous mode\n"
1109 " --config (port,queue,lcore): rx queues configuration\n"
1110 " --no-numa: optional, disable numa awareness\n"
1111 " --enable-jumbo: enable jumbo frame"
1112 " which max packet len is PKTLEN in decimal (64-9600)\n",
1116 static int parse_max_pkt_len(const char *pktlen)
1121 /* parse decimal string */
1122 len = strtoul(pktlen, &end, 10);
1123 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1133 parse_portmask(const char *portmask)
1138 /* parse hexadecimal string */
1139 pm = strtoul(portmask, &end, 16);
1140 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1150 parse_config(const char *q_arg)
1153 const char *p, *p0 = q_arg;
1161 unsigned long int_fld[_NUM_FLD];
1162 char *str_fld[_NUM_FLD];
1166 nb_lcore_params = 0;
1168 while ((p = strchr(p0,'(')) != NULL) {
1170 if((p0 = strchr(p,')')) == NULL)
1174 if(size >= sizeof(s))
1177 snprintf(s, sizeof(s), "%.*s", size, p);
1178 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1181 for (i = 0; i < _NUM_FLD; i++){
1183 int_fld[i] = strtoul(str_fld[i], &end, 0);
1184 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1188 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1189 printf("exceeded max number of lcore params: %hu\n",
1193 lcore_params_array[nb_lcore_params].port_id =
1194 (uint8_t)int_fld[FLD_PORT];
1195 lcore_params_array[nb_lcore_params].queue_id =
1196 (uint8_t)int_fld[FLD_QUEUE];
1197 lcore_params_array[nb_lcore_params].lcore_id =
1198 (uint8_t)int_fld[FLD_LCORE];
1201 lcore_params = lcore_params_array;
1206 /* Parse the argument given in the command line of the application */
1208 parse_args(int argc, char **argv)
1213 char *prgname = argv[0];
1214 static struct option lgopts[] = {
1215 {"config", 1, 0, 0},
1216 {"no-numa", 0, 0, 0},
1217 {"enable-jumbo", 0, 0, 0},
1223 while ((opt = getopt_long(argc, argvopt, "p:P",
1224 lgopts, &option_index)) != EOF) {
1229 enabled_port_mask = parse_portmask(optarg);
1230 if (enabled_port_mask == 0) {
1231 printf("invalid portmask\n");
1232 print_usage(prgname);
1237 printf("Promiscuous mode selected\n");
1243 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1244 ret = parse_config(optarg);
1246 printf("invalid config\n");
1247 print_usage(prgname);
1252 if (!strncmp(lgopts[option_index].name,
1254 printf("numa is disabled \n");
1258 if (!strncmp(lgopts[option_index].name,
1259 "enable-jumbo", 12)) {
1260 struct option lenopts =
1261 {"max-pkt-len", required_argument, \
1264 printf("jumbo frame is enabled \n");
1265 port_conf.rxmode.jumbo_frame = 1;
1268 * if no max-pkt-len set, use the default value
1271 if (0 == getopt_long(argc, argvopt, "",
1272 &lenopts, &option_index)) {
1273 ret = parse_max_pkt_len(optarg);
1275 (ret > MAX_JUMBO_PKT_LEN)){
1276 printf("invalid packet "
1278 print_usage(prgname);
1281 port_conf.rxmode.max_rx_pkt_len = ret;
1283 printf("set jumbo frame "
1284 "max packet length to %u\n",
1285 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1291 print_usage(prgname);
1297 argv[optind-1] = prgname;
1300 optind = 0; /* reset getopt lib */
1305 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
1307 char buf[ETHER_ADDR_FMT_SIZE];
1308 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
1309 printf("%s%s", name, buf);
1312 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1314 setup_hash(int socketid)
1316 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1318 .entries = L3FWD_HASH_ENTRIES,
1319 .key_len = sizeof(struct ipv4_5tuple),
1320 .hash_func = DEFAULT_HASH_FUNC,
1321 .hash_func_init_val = 0,
1324 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1326 .entries = L3FWD_HASH_ENTRIES,
1327 .key_len = sizeof(struct ipv6_5tuple),
1328 .hash_func = DEFAULT_HASH_FUNC,
1329 .hash_func_init_val = 0,
1336 /* create ipv4 hash */
1337 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1338 ipv4_l3fwd_hash_params.name = s;
1339 ipv4_l3fwd_hash_params.socket_id = socketid;
1340 ipv4_l3fwd_lookup_struct[socketid] =
1341 rte_hash_create(&ipv4_l3fwd_hash_params);
1342 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1343 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1344 "socket %d\n", socketid);
1346 /* create ipv6 hash */
1347 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
1348 ipv6_l3fwd_hash_params.name = s;
1349 ipv6_l3fwd_hash_params.socket_id = socketid;
1350 ipv6_l3fwd_lookup_struct[socketid] =
1351 rte_hash_create(&ipv6_l3fwd_hash_params);
1352 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
1353 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1354 "socket %d\n", socketid);
1357 /* populate the ipv4 hash */
1358 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1359 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
1360 (void *) &ipv4_l3fwd_route_array[i].key);
1362 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1363 "l3fwd hash on socket %d\n", i, socketid);
1365 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
1366 printf("Hash: Adding key\n");
1367 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
1370 /* populate the ipv6 hash */
1371 for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
1372 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
1373 (void *) &ipv6_l3fwd_route_array[i].key);
1375 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1376 "l3fwd hash on socket %d\n", i, socketid);
1378 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
1379 printf("Hash: Adding key\n");
1380 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
1385 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1387 setup_lpm(int socketid)
1393 /* create the LPM table */
1394 struct rte_lpm_config lpm_ipv4_config;
1396 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
1397 lpm_ipv4_config.number_tbl8s = 256;
1398 lpm_ipv4_config.flags = 0;
1400 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
1401 ipv4_l3fwd_lookup_struct[socketid] =
1402 rte_lpm_create(s, socketid, &lpm_ipv4_config);
1403 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1404 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
1405 " on socket %d\n", socketid);
1407 /* populate the LPM table */
1408 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1409 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
1410 ipv4_l3fwd_route_array[i].ip,
1411 ipv4_l3fwd_route_array[i].depth,
1412 ipv4_l3fwd_route_array[i].if_out);
1415 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
1416 "l3fwd LPM table on socket %d\n",
1420 printf("LPM: Adding route 0x%08x / %d (%d)\n",
1421 (unsigned)ipv4_l3fwd_route_array[i].ip,
1422 ipv4_l3fwd_route_array[i].depth,
1423 ipv4_l3fwd_route_array[i].if_out);
1429 init_mem(unsigned nb_mbuf)
1431 struct lcore_conf *qconf;
1436 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1437 if (rte_lcore_is_enabled(lcore_id) == 0)
1441 socketid = rte_lcore_to_socket_id(lcore_id);
1445 if (socketid >= NB_SOCKETS) {
1446 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
1447 "out of range %d\n", socketid,
1448 lcore_id, NB_SOCKETS);
1450 if (pktmbuf_pool[socketid] == NULL) {
1451 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
1452 pktmbuf_pool[socketid] =
1453 rte_pktmbuf_pool_create(s, nb_mbuf,
1454 MEMPOOL_CACHE_SIZE, 0,
1455 RTE_MBUF_DEFAULT_BUF_SIZE,
1457 if (pktmbuf_pool[socketid] == NULL)
1458 rte_exit(EXIT_FAILURE,
1459 "Cannot init mbuf pool on socket %d\n",
1462 printf("Allocated mbuf pool on socket %d\n",
1465 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1466 setup_lpm(socketid);
1468 setup_hash(socketid);
1471 qconf = &lcore_conf[lcore_id];
1472 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
1473 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1474 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
1480 /* Check the link status of all ports in up to 9s, and print them finally */
1482 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
1484 #define CHECK_INTERVAL 100 /* 100ms */
1485 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
1486 uint8_t portid, count, all_ports_up, print_flag = 0;
1487 struct rte_eth_link link;
1489 printf("\nChecking link status");
1491 for (count = 0; count <= MAX_CHECK_TIME; count++) {
1493 for (portid = 0; portid < port_num; portid++) {
1494 if ((port_mask & (1 << portid)) == 0)
1496 memset(&link, 0, sizeof(link));
1497 rte_eth_link_get_nowait(portid, &link);
1498 /* print link status if flag set */
1499 if (print_flag == 1) {
1500 if (link.link_status)
1501 printf("Port %d Link Up - speed %u "
1502 "Mbps - %s\n", (uint8_t)portid,
1503 (unsigned)link.link_speed,
1504 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
1505 ("full-duplex") : ("half-duplex\n"));
1507 printf("Port %d Link Down\n",
1511 /* clear all_ports_up flag if any link down */
1512 if (link.link_status == ETH_LINK_DOWN) {
1517 /* after finally printing all link status, get out */
1518 if (print_flag == 1)
1521 if (all_ports_up == 0) {
1524 rte_delay_ms(CHECK_INTERVAL);
1527 /* set the print_flag if all ports up or timeout */
1528 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
1536 main(int argc, char **argv)
1538 struct lcore_conf *qconf;
1539 struct rte_eth_dev_info dev_info;
1540 struct rte_eth_txconf *txconf;
1546 uint32_t n_tx_queue, nb_lcores;
1547 uint32_t dev_rxq_num, dev_txq_num;
1548 uint8_t portid, nb_rx_queue, queue, socketid;
1550 /* catch SIGINT and restore cpufreq governor to ondemand */
1551 signal(SIGINT, signal_exit_now);
1554 ret = rte_eal_init(argc, argv);
1556 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1560 /* init RTE timer library to be used late */
1561 rte_timer_subsystem_init();
1563 /* parse application arguments (after the EAL ones) */
1564 ret = parse_args(argc, argv);
1566 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
1568 if (check_lcore_params() < 0)
1569 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
1571 ret = init_lcore_rx_queues();
1573 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
1575 nb_ports = rte_eth_dev_count();
1577 if (check_port_config(nb_ports) < 0)
1578 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
1580 nb_lcores = rte_lcore_count();
1582 /* initialize all ports */
1583 for (portid = 0; portid < nb_ports; portid++) {
1584 /* skip ports that are not enabled */
1585 if ((enabled_port_mask & (1 << portid)) == 0) {
1586 printf("\nSkipping disabled port %d\n", portid);
1591 printf("Initializing port %d ... ", portid );
1594 rte_eth_dev_info_get(portid, &dev_info);
1595 dev_rxq_num = dev_info.max_rx_queues;
1596 dev_txq_num = dev_info.max_tx_queues;
1598 nb_rx_queue = get_port_n_rx_queues(portid);
1599 if (nb_rx_queue > dev_rxq_num)
1600 rte_exit(EXIT_FAILURE,
1601 "Cannot configure not existed rxq: "
1602 "port=%d\n", portid);
1604 n_tx_queue = nb_lcores;
1605 if (n_tx_queue > dev_txq_num)
1606 n_tx_queue = dev_txq_num;
1607 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
1608 nb_rx_queue, (unsigned)n_tx_queue );
1609 ret = rte_eth_dev_configure(portid, nb_rx_queue,
1610 (uint16_t)n_tx_queue, &port_conf);
1612 rte_exit(EXIT_FAILURE, "Cannot configure device: "
1613 "err=%d, port=%d\n", ret, portid);
1615 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
1616 print_ethaddr(" Address:", &ports_eth_addr[portid]);
1620 ret = init_mem(NB_MBUF);
1622 rte_exit(EXIT_FAILURE, "init_mem failed\n");
1624 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1625 if (rte_lcore_is_enabled(lcore_id) == 0)
1628 /* Initialize TX buffers */
1629 qconf = &lcore_conf[lcore_id];
1630 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
1631 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
1632 rte_eth_dev_socket_id(portid));
1633 if (qconf->tx_buffer[portid] == NULL)
1634 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
1637 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
1640 /* init one TX queue per couple (lcore,port) */
1642 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1643 if (rte_lcore_is_enabled(lcore_id) == 0)
1646 if (queueid >= dev_txq_num)
1651 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1655 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
1658 rte_eth_dev_info_get(portid, &dev_info);
1659 txconf = &dev_info.default_txconf;
1660 if (port_conf.rxmode.jumbo_frame)
1661 txconf->txq_flags = 0;
1662 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
1665 rte_exit(EXIT_FAILURE,
1666 "rte_eth_tx_queue_setup: err=%d, "
1667 "port=%d\n", ret, portid);
1669 qconf = &lcore_conf[lcore_id];
1670 qconf->tx_queue_id[portid] = queueid;
1673 qconf->tx_port_id[qconf->n_tx_port] = portid;
1679 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1680 if (rte_lcore_is_enabled(lcore_id) == 0)
1683 /* init power management library */
1684 ret = rte_power_init(lcore_id);
1687 "Library initialization failed on core %u\n", lcore_id);
1689 /* init timer structures for each enabled lcore */
1690 rte_timer_init(&power_timers[lcore_id]);
1691 hz = rte_get_timer_hz();
1692 rte_timer_reset(&power_timers[lcore_id],
1693 hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
1694 power_timer_cb, NULL);
1696 qconf = &lcore_conf[lcore_id];
1697 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
1699 /* init RX queues */
1700 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
1701 portid = qconf->rx_queue_list[queue].port_id;
1702 queueid = qconf->rx_queue_list[queue].queue_id;
1706 (uint8_t)rte_lcore_to_socket_id(lcore_id);
1710 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
1713 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
1715 pktmbuf_pool[socketid]);
1717 rte_exit(EXIT_FAILURE,
1718 "rte_eth_rx_queue_setup: err=%d, "
1719 "port=%d\n", ret, portid);
1726 for (portid = 0; portid < nb_ports; portid++) {
1727 if ((enabled_port_mask & (1 << portid)) == 0) {
1731 ret = rte_eth_dev_start(portid);
1733 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
1734 "port=%d\n", ret, portid);
1736 * If enabled, put device in promiscuous mode.
1737 * This allows IO forwarding mode to forward packets
1738 * to itself through 2 cross-connected ports of the
1742 rte_eth_promiscuous_enable(portid);
1743 /* initialize spinlock for each port */
1744 rte_spinlock_init(&(locks[portid]));
1747 check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
1749 /* launch per-lcore init on every lcore */
1750 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
1751 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
1752 if (rte_eal_wait_lcore(lcore_id) < 0)