1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2018 Intel Corporation
11 #include <sys/queue.h>
18 #include <rte_common.h>
19 #include <rte_byteorder.h>
21 #include <rte_malloc.h>
22 #include <rte_memory.h>
23 #include <rte_memcpy.h>
25 #include <rte_launch.h>
26 #include <rte_atomic.h>
27 #include <rte_cycles.h>
28 #include <rte_prefetch.h>
29 #include <rte_lcore.h>
30 #include <rte_per_lcore.h>
31 #include <rte_branch_prediction.h>
32 #include <rte_interrupts.h>
33 #include <rte_random.h>
34 #include <rte_debug.h>
35 #include <rte_ether.h>
36 #include <rte_ethdev.h>
37 #include <rte_mempool.h>
42 #include <rte_string_fns.h>
43 #include <rte_timer.h>
44 #include <rte_power.h>
45 #include <rte_spinlock.h>
46 #include <rte_power_empty_poll.h>
48 #include "perf_core.h"
51 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
53 #define MAX_PKT_BURST 32
55 #define MIN_ZERO_POLL_COUNT 10
58 #define TIMER_NUMBER_PER_SECOND 10
60 #define INTERVALS_PER_SECOND 100
62 #define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND)
63 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
65 #define APP_LOOKUP_EXACT_MATCH 0
66 #define APP_LOOKUP_LPM 1
67 #define DO_RFC_1812_CHECKS
69 #ifndef APP_LOOKUP_METHOD
70 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
73 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
75 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
78 #error "APP_LOOKUP_METHOD set to incorrect value"
82 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
83 "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
84 #define IPv6_BYTES(addr) \
85 addr[0], addr[1], addr[2], addr[3], \
86 addr[4], addr[5], addr[6], addr[7], \
87 addr[8], addr[9], addr[10], addr[11],\
88 addr[12], addr[13],addr[14], addr[15]
91 #define MAX_JUMBO_PKT_LEN 9600
93 #define IPV6_ADDR_LEN 16
95 #define MEMPOOL_CACHE_SIZE 256
98 * This expression is used to calculate the number of mbufs needed depending on
99 * user input, taking into account memory for rx and tx hardware rings, cache
100 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
101 * NB_MBUF never goes below a minimum value of 8192.
104 #define NB_MBUF RTE_MAX ( \
105 (nb_ports*nb_rx_queue*nb_rxd + \
106 nb_ports*nb_lcores*MAX_PKT_BURST + \
107 nb_ports*n_tx_queue*nb_txd + \
108 nb_lcores*MEMPOOL_CACHE_SIZE), \
111 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
115 /* Configure how many packets ahead to prefetch, when reading packets */
116 #define PREFETCH_OFFSET 3
119 * Configurable number of RX/TX ring descriptors
121 #define RTE_TEST_RX_DESC_DEFAULT 1024
122 #define RTE_TEST_TX_DESC_DEFAULT 1024
125 * These two thresholds were decided on by running the training algorithm on
126 * a 2.5GHz Xeon. These defaults can be overridden by supplying non-zero values
127 * for the med_threshold and high_threshold parameters on the command line.
129 #define EMPTY_POLL_MED_THRESHOLD 350000UL
130 #define EMPTY_POLL_HGH_THRESHOLD 580000UL
134 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
135 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
137 /* ethernet addresses of ports */
138 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
140 /* ethernet addresses of ports */
141 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
143 /* mask of enabled ports */
144 static uint32_t enabled_port_mask = 0;
145 /* Ports set in promiscuous mode off by default. */
146 static int promiscuous_on = 0;
147 /* NUMA is enabled by default. */
148 static int numa_on = 1;
149 /* emptypoll is disabled by default. */
150 static bool empty_poll_on;
151 static bool empty_poll_train;
152 volatile bool empty_poll_stop;
153 static struct ep_params *ep_params;
154 static struct ep_policy policy;
155 static long ep_med_edpi, ep_hgh_edpi;
157 static int parse_ptype; /**< Parse packet type using rx callback, and */
158 /**< disabled by default */
160 enum freq_scale_hint_t
168 struct lcore_rx_queue {
171 enum freq_scale_hint_t freq_up_hint;
172 uint32_t zero_rx_packet_count;
174 } __rte_cache_aligned;
176 #define MAX_RX_QUEUE_PER_LCORE 16
177 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
178 #define MAX_RX_QUEUE_PER_PORT 128
180 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
183 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
184 static struct lcore_params lcore_params_array_default[] = {
196 struct lcore_params *lcore_params = lcore_params_array_default;
197 uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
198 sizeof(lcore_params_array_default[0]);
200 static struct rte_eth_conf port_conf = {
202 .mq_mode = ETH_MQ_RX_RSS,
203 .max_rx_pkt_len = ETHER_MAX_LEN,
205 .offloads = DEV_RX_OFFLOAD_CHECKSUM,
210 .rss_hf = ETH_RSS_UDP,
214 .mq_mode = ETH_MQ_TX_NONE,
221 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
224 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
227 #include <rte_hash_crc.h>
228 #define DEFAULT_HASH_FUNC rte_hash_crc
230 #include <rte_jhash.h>
231 #define DEFAULT_HASH_FUNC rte_jhash
240 } __attribute__((__packed__));
243 uint8_t ip_dst[IPV6_ADDR_LEN];
244 uint8_t ip_src[IPV6_ADDR_LEN];
248 } __attribute__((__packed__));
250 struct ipv4_l3fwd_route {
251 struct ipv4_5tuple key;
255 struct ipv6_l3fwd_route {
256 struct ipv6_5tuple key;
260 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
261 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
262 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
263 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
264 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
267 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
270 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
271 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
272 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
273 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
279 typedef struct rte_hash lookup_struct_t;
280 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
281 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
283 #define L3FWD_HASH_ENTRIES 1024
285 #define IPV4_L3FWD_NUM_ROUTES \
286 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
288 #define IPV6_L3FWD_NUM_ROUTES \
289 (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
291 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
292 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
295 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
296 struct ipv4_l3fwd_route {
302 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
303 {IPv4(1,1,1,0), 24, 0},
304 {IPv4(2,1,1,0), 24, 1},
305 {IPv4(3,1,1,0), 24, 2},
306 {IPv4(4,1,1,0), 24, 3},
307 {IPv4(5,1,1,0), 24, 4},
308 {IPv4(6,1,1,0), 24, 5},
309 {IPv4(7,1,1,0), 24, 6},
310 {IPv4(8,1,1,0), 24, 7},
313 #define IPV4_L3FWD_NUM_ROUTES \
314 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
316 #define IPV4_L3FWD_LPM_MAX_RULES 1024
318 typedef struct rte_lpm lookup_struct_t;
319 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
324 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
326 uint16_t tx_port_id[RTE_MAX_ETHPORTS];
327 uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
328 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
329 lookup_struct_t * ipv4_lookup_struct;
330 lookup_struct_t * ipv6_lookup_struct;
331 } __rte_cache_aligned;
334 /* total sleep time in ms since last frequency scaling down */
336 /* number of long sleep recently */
337 uint32_t nb_long_sleep;
338 /* freq. scaling up trend */
340 /* total packet processed recently */
341 uint64_t nb_rx_processed;
342 /* total iterations looped recently */
343 uint64_t nb_iteration_looped;
345 } __rte_cache_aligned;
347 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
348 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
349 static struct rte_timer power_timers[RTE_MAX_LCORE];
351 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
352 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
353 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
357 * These defaults are using the max frequency index (1), a medium index (9)
358 * and a typical low frequency index (14). These can be adjusted to use
359 * different indexes using the relevant command line parameters.
361 static uint8_t freq_tlb[] = {14, 9, 1};
363 static int is_done(void)
365 return empty_poll_stop;
368 /* exit signal handler */
370 signal_exit_now(int sigtype)
376 if (sigtype == SIGINT) {
378 empty_poll_stop = true;
381 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
382 if (rte_lcore_is_enabled(lcore_id) == 0)
385 /* init power management library */
386 ret = rte_power_exit(lcore_id);
388 rte_exit(EXIT_FAILURE, "Power management "
389 "library de-initialization failed on "
390 "core%u\n", lcore_id);
393 if (!empty_poll_on) {
394 RTE_ETH_FOREACH_DEV(portid) {
395 if ((enabled_port_mask & (1 << portid)) == 0)
398 rte_eth_dev_stop(portid);
399 rte_eth_dev_close(portid);
405 rte_exit(EXIT_SUCCESS, "User forced exit\n");
408 /* Freqency scale down timer callback */
410 power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
411 __attribute__((unused)) void *arg)
414 float sleep_time_ratio;
415 unsigned lcore_id = rte_lcore_id();
417 /* accumulate total execution time in us when callback is invoked */
418 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
419 (float)SCALING_PERIOD;
421 * check whether need to scale down frequency a step if it sleep a lot.
423 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
424 if (rte_power_freq_down)
425 rte_power_freq_down(lcore_id);
427 else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
428 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
430 * scale down a step if average packet per iteration less
433 if (rte_power_freq_down)
434 rte_power_freq_down(lcore_id);
438 * initialize another timer according to current frequency to ensure
439 * timer interval is relatively fixed.
441 hz = rte_get_timer_hz();
442 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
443 SINGLE, lcore_id, power_timer_cb, NULL);
445 stats[lcore_id].nb_rx_processed = 0;
446 stats[lcore_id].nb_iteration_looped = 0;
448 stats[lcore_id].sleep_time = 0;
451 /* Enqueue a single packet, and send burst if queue is filled */
453 send_single_packet(struct rte_mbuf *m, uint16_t port)
456 struct lcore_conf *qconf;
458 lcore_id = rte_lcore_id();
459 qconf = &lcore_conf[lcore_id];
461 rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
462 qconf->tx_buffer[port], m);
467 #ifdef DO_RFC_1812_CHECKS
469 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
471 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
473 * 1. The packet length reported by the Link Layer must be large
474 * enough to hold the minimum length legal IP datagram (20 bytes).
476 if (link_len < sizeof(struct ipv4_hdr))
479 /* 2. The IP checksum must be correct. */
480 /* this is checked in H/W */
483 * 3. The IP version number must be 4. If the version number is not 4
484 * then the packet may be another version of IP, such as IPng or
487 if (((pkt->version_ihl) >> 4) != 4)
490 * 4. The IP header length field must be large enough to hold the
491 * minimum length legal IP datagram (20 bytes = 5 words).
493 if ((pkt->version_ihl & 0xf) < 5)
497 * 5. The IP total length field must be large enough to hold the IP
498 * datagram header, whose length is specified in the IP header length
501 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
508 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
510 print_ipv4_key(struct ipv4_5tuple key)
512 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
513 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
514 key.port_dst, key.port_src, key.proto);
517 print_ipv6_key(struct ipv6_5tuple key)
519 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
520 "port dst = %d, port src = %d, proto = %d\n",
521 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
522 key.port_dst, key.port_src, key.proto);
525 static inline uint16_t
526 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
527 lookup_struct_t * ipv4_l3fwd_lookup_struct)
529 struct ipv4_5tuple key;
534 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
535 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
536 key.proto = ipv4_hdr->next_proto_id;
538 switch (ipv4_hdr->next_proto_id) {
540 tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
541 sizeof(struct ipv4_hdr));
542 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
543 key.port_src = rte_be_to_cpu_16(tcp->src_port);
547 udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
548 sizeof(struct ipv4_hdr));
549 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
550 key.port_src = rte_be_to_cpu_16(udp->src_port);
559 /* Find destination port */
560 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
561 return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
564 static inline uint16_t
565 get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint16_t portid,
566 lookup_struct_t *ipv6_l3fwd_lookup_struct)
568 struct ipv6_5tuple key;
573 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
574 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
576 key.proto = ipv6_hdr->proto;
578 switch (ipv6_hdr->proto) {
580 tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
581 sizeof(struct ipv6_hdr));
582 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
583 key.port_src = rte_be_to_cpu_16(tcp->src_port);
587 udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
588 sizeof(struct ipv6_hdr));
589 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
590 key.port_src = rte_be_to_cpu_16(udp->src_port);
599 /* Find destination port */
600 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
601 return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
605 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
606 static inline uint16_t
607 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint16_t portid,
608 lookup_struct_t *ipv4_l3fwd_lookup_struct)
612 return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
613 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
619 parse_ptype_one(struct rte_mbuf *m)
621 struct rte_ether_hdr *eth_hdr;
622 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
625 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
626 ether_type = eth_hdr->ether_type;
627 if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
628 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
629 else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
630 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
632 m->packet_type = packet_type;
636 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
637 struct rte_mbuf *pkts[], uint16_t nb_pkts,
638 uint16_t max_pkts __rte_unused,
639 void *user_param __rte_unused)
643 for (i = 0; i < nb_pkts; ++i)
644 parse_ptype_one(pkts[i]);
650 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
652 printf("Port %d: softly parse packet type info\n", portid);
653 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
656 printf("Failed to add rx callback: port=%d\n", portid);
661 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
662 struct lcore_conf *qconf)
664 struct rte_ether_hdr *eth_hdr;
665 struct ipv4_hdr *ipv4_hdr;
669 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
671 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
672 /* Handle IPv4 headers.*/
674 rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
675 sizeof(struct rte_ether_hdr));
677 #ifdef DO_RFC_1812_CHECKS
678 /* Check to make sure the packet is valid (RFC1812) */
679 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
685 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
686 qconf->ipv4_lookup_struct);
687 if (dst_port >= RTE_MAX_ETHPORTS ||
688 (enabled_port_mask & 1 << dst_port) == 0)
691 /* 02:00:00:00:00:xx */
692 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
693 *((uint64_t *)d_addr_bytes) =
694 0x000000000002 + ((uint64_t)dst_port << 40);
696 #ifdef DO_RFC_1812_CHECKS
697 /* Update time to live and header checksum */
698 --(ipv4_hdr->time_to_live);
699 ++(ipv4_hdr->hdr_checksum);
703 rte_ether_addr_copy(&ports_eth_addr[dst_port],
706 send_single_packet(m, dst_port);
707 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
708 /* Handle IPv6 headers.*/
709 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
710 struct ipv6_hdr *ipv6_hdr;
713 rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
714 sizeof(struct rte_ether_hdr));
716 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
717 qconf->ipv6_lookup_struct);
719 if (dst_port >= RTE_MAX_ETHPORTS ||
720 (enabled_port_mask & 1 << dst_port) == 0)
723 /* 02:00:00:00:00:xx */
724 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
725 *((uint64_t *)d_addr_bytes) =
726 0x000000000002 + ((uint64_t)dst_port << 40);
729 rte_ether_addr_copy(&ports_eth_addr[dst_port],
732 send_single_packet(m, dst_port);
734 /* We don't currently handle IPv6 packets in LPM mode. */
742 #define MINIMUM_SLEEP_TIME 1
743 #define SUSPEND_THRESHOLD 300
745 static inline uint32_t
746 power_idle_heuristic(uint32_t zero_rx_packet_count)
748 /* If zero count is less than 100, sleep 1us */
749 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
750 return MINIMUM_SLEEP_TIME;
751 /* If zero count is less than 1000, sleep 100 us which is the
752 minimum latency switching from C3/C6 to C0
755 return SUSPEND_THRESHOLD;
758 static inline enum freq_scale_hint_t
759 power_freq_scaleup_heuristic(unsigned lcore_id,
763 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
765 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
768 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
769 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
770 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
771 #define FREQ_UP_TREND1_ACC 1
772 #define FREQ_UP_TREND2_ACC 100
773 #define FREQ_UP_THRESHOLD 10000
775 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
776 stats[lcore_id].trend = 0;
778 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
779 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
780 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
781 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
783 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
784 stats[lcore_id].trend = 0;
792 * force polling thread sleep until one-shot rx interrupt triggers
801 sleep_until_rx_interrupt(int num)
803 struct rte_epoll_event event[num];
809 RTE_LOG(INFO, L3FWD_POWER,
810 "lcore %u sleeps until interrupt triggers\n",
813 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
814 for (i = 0; i < n; i++) {
815 data = event[i].epdata.data;
816 port_id = ((uintptr_t)data) >> CHAR_BIT;
817 queue_id = ((uintptr_t)data) &
818 RTE_LEN2MASK(CHAR_BIT, uint8_t);
819 rte_eth_dev_rx_intr_disable(port_id, queue_id);
820 RTE_LOG(INFO, L3FWD_POWER,
821 "lcore %u is waked up from rx interrupt on"
822 " port %d queue %d\n",
823 rte_lcore_id(), port_id, queue_id);
829 static void turn_on_intr(struct lcore_conf *qconf)
832 struct lcore_rx_queue *rx_queue;
836 for (i = 0; i < qconf->n_rx_queue; ++i) {
837 rx_queue = &(qconf->rx_queue_list[i]);
838 port_id = rx_queue->port_id;
839 queue_id = rx_queue->queue_id;
841 rte_spinlock_lock(&(locks[port_id]));
842 rte_eth_dev_rx_intr_enable(port_id, queue_id);
843 rte_spinlock_unlock(&(locks[port_id]));
847 static int event_register(struct lcore_conf *qconf)
849 struct lcore_rx_queue *rx_queue;
856 for (i = 0; i < qconf->n_rx_queue; ++i) {
857 rx_queue = &(qconf->rx_queue_list[i]);
858 portid = rx_queue->port_id;
859 queueid = rx_queue->queue_id;
860 data = portid << CHAR_BIT | queueid;
862 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
863 RTE_EPOLL_PER_THREAD,
865 (void *)((uintptr_t)data));
872 /* main processing loop */
874 main_empty_poll_loop(__attribute__((unused)) void *dummy)
876 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
877 unsigned int lcore_id;
878 uint64_t prev_tsc, diff_tsc, cur_tsc;
882 struct lcore_conf *qconf;
883 struct lcore_rx_queue *rx_queue;
885 const uint64_t drain_tsc =
886 (rte_get_tsc_hz() + US_PER_S - 1) /
887 US_PER_S * BURST_TX_DRAIN_US;
891 lcore_id = rte_lcore_id();
892 qconf = &lcore_conf[lcore_id];
894 if (qconf->n_rx_queue == 0) {
895 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
900 for (i = 0; i < qconf->n_rx_queue; i++) {
901 portid = qconf->rx_queue_list[i].port_id;
902 queueid = qconf->rx_queue_list[i].queue_id;
903 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
904 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
908 stats[lcore_id].nb_iteration_looped++;
910 cur_tsc = rte_rdtsc();
912 * TX burst queue drain
914 diff_tsc = cur_tsc - prev_tsc;
915 if (unlikely(diff_tsc > drain_tsc)) {
916 for (i = 0; i < qconf->n_tx_port; ++i) {
917 portid = qconf->tx_port_id[i];
918 rte_eth_tx_buffer_flush(portid,
919 qconf->tx_queue_id[portid],
920 qconf->tx_buffer[portid]);
926 * Read packet from RX queues
928 for (i = 0; i < qconf->n_rx_queue; ++i) {
929 rx_queue = &(qconf->rx_queue_list[i]);
930 rx_queue->idle_hint = 0;
931 portid = rx_queue->port_id;
932 queueid = rx_queue->queue_id;
934 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
937 stats[lcore_id].nb_rx_processed += nb_rx;
941 rte_power_empty_poll_stat_update(lcore_id);
945 rte_power_poll_stat_update(lcore_id, nb_rx);
949 /* Prefetch first packets */
950 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
951 rte_prefetch0(rte_pktmbuf_mtod(
952 pkts_burst[j], void *));
955 /* Prefetch and forward already prefetched packets */
956 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
957 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
958 j + PREFETCH_OFFSET],
960 l3fwd_simple_forward(pkts_burst[j], portid,
964 /* Forward remaining prefetched packets */
965 for (; j < nb_rx; j++) {
966 l3fwd_simple_forward(pkts_burst[j], portid,
976 /* main processing loop */
978 main_loop(__attribute__((unused)) void *dummy)
980 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
982 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
983 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
987 struct lcore_conf *qconf;
988 struct lcore_rx_queue *rx_queue;
989 enum freq_scale_hint_t lcore_scaleup_hint;
990 uint32_t lcore_rx_idle_count = 0;
991 uint32_t lcore_idle_hint = 0;
994 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
997 hz = rte_get_timer_hz();
998 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1000 lcore_id = rte_lcore_id();
1001 qconf = &lcore_conf[lcore_id];
1003 if (qconf->n_rx_queue == 0) {
1004 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1008 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1010 for (i = 0; i < qconf->n_rx_queue; i++) {
1011 portid = qconf->rx_queue_list[i].port_id;
1012 queueid = qconf->rx_queue_list[i].queue_id;
1013 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1014 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1017 /* add into event wait list */
1018 if (event_register(qconf) == 0)
1021 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1024 stats[lcore_id].nb_iteration_looped++;
1026 cur_tsc = rte_rdtsc();
1027 cur_tsc_power = cur_tsc;
1030 * TX burst queue drain
1032 diff_tsc = cur_tsc - prev_tsc;
1033 if (unlikely(diff_tsc > drain_tsc)) {
1034 for (i = 0; i < qconf->n_tx_port; ++i) {
1035 portid = qconf->tx_port_id[i];
1036 rte_eth_tx_buffer_flush(portid,
1037 qconf->tx_queue_id[portid],
1038 qconf->tx_buffer[portid]);
1043 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1044 if (diff_tsc_power > tim_res_tsc) {
1046 prev_tsc_power = cur_tsc_power;
1051 * Read packet from RX queues
1053 lcore_scaleup_hint = FREQ_CURRENT;
1054 lcore_rx_idle_count = 0;
1055 for (i = 0; i < qconf->n_rx_queue; ++i) {
1056 rx_queue = &(qconf->rx_queue_list[i]);
1057 rx_queue->idle_hint = 0;
1058 portid = rx_queue->port_id;
1059 queueid = rx_queue->queue_id;
1061 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1064 stats[lcore_id].nb_rx_processed += nb_rx;
1065 if (unlikely(nb_rx == 0)) {
1067 * no packet received from rx queue, try to
1068 * sleep for a while forcing CPU enter deeper
1071 rx_queue->zero_rx_packet_count++;
1073 if (rx_queue->zero_rx_packet_count <=
1074 MIN_ZERO_POLL_COUNT)
1077 rx_queue->idle_hint = power_idle_heuristic(\
1078 rx_queue->zero_rx_packet_count);
1079 lcore_rx_idle_count++;
1081 rx_queue->zero_rx_packet_count = 0;
1084 * do not scale up frequency immediately as
1085 * user to kernel space communication is costly
1086 * which might impact packet I/O for received
1089 rx_queue->freq_up_hint =
1090 power_freq_scaleup_heuristic(lcore_id,
1094 /* Prefetch first packets */
1095 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1096 rte_prefetch0(rte_pktmbuf_mtod(
1097 pkts_burst[j], void *));
1100 /* Prefetch and forward already prefetched packets */
1101 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1102 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1103 j + PREFETCH_OFFSET], void *));
1104 l3fwd_simple_forward(pkts_burst[j], portid,
1108 /* Forward remaining prefetched packets */
1109 for (; j < nb_rx; j++) {
1110 l3fwd_simple_forward(pkts_burst[j], portid,
1115 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1116 for (i = 1, lcore_scaleup_hint =
1117 qconf->rx_queue_list[0].freq_up_hint;
1118 i < qconf->n_rx_queue; ++i) {
1119 rx_queue = &(qconf->rx_queue_list[i]);
1120 if (rx_queue->freq_up_hint >
1122 lcore_scaleup_hint =
1123 rx_queue->freq_up_hint;
1126 if (lcore_scaleup_hint == FREQ_HIGHEST) {
1127 if (rte_power_freq_max)
1128 rte_power_freq_max(lcore_id);
1129 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1130 if (rte_power_freq_up)
1131 rte_power_freq_up(lcore_id);
1135 * All Rx queues empty in recent consecutive polls,
1136 * sleep in a conservative manner, meaning sleep as
1139 for (i = 1, lcore_idle_hint =
1140 qconf->rx_queue_list[0].idle_hint;
1141 i < qconf->n_rx_queue; ++i) {
1142 rx_queue = &(qconf->rx_queue_list[i]);
1143 if (rx_queue->idle_hint < lcore_idle_hint)
1144 lcore_idle_hint = rx_queue->idle_hint;
1147 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1149 * execute "pause" instruction to avoid context
1150 * switch which generally take hundred of
1151 * microseconds for short sleep.
1153 rte_delay_us(lcore_idle_hint);
1155 /* suspend until rx interrupt trigges */
1157 turn_on_intr(qconf);
1158 sleep_until_rx_interrupt(
1161 * start receiving packets immediately
1166 stats[lcore_id].sleep_time += lcore_idle_hint;
1172 check_lcore_params(void)
1174 uint8_t queue, lcore;
1178 for (i = 0; i < nb_lcore_params; ++i) {
1179 queue = lcore_params[i].queue_id;
1180 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1181 printf("invalid queue number: %hhu\n", queue);
1184 lcore = lcore_params[i].lcore_id;
1185 if (!rte_lcore_is_enabled(lcore)) {
1186 printf("error: lcore %hhu is not enabled in lcore "
1190 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1192 printf("warning: lcore %hhu is on socket %d with numa "
1193 "off\n", lcore, socketid);
1200 check_port_config(void)
1205 for (i = 0; i < nb_lcore_params; ++i) {
1206 portid = lcore_params[i].port_id;
1207 if ((enabled_port_mask & (1 << portid)) == 0) {
1208 printf("port %u is not enabled in port mask\n",
1212 if (!rte_eth_dev_is_valid_port(portid)) {
1213 printf("port %u is not present on the board\n",
1222 get_port_n_rx_queues(const uint16_t port)
1227 for (i = 0; i < nb_lcore_params; ++i) {
1228 if (lcore_params[i].port_id == port &&
1229 lcore_params[i].queue_id > queue)
1230 queue = lcore_params[i].queue_id;
1232 return (uint8_t)(++queue);
1236 init_lcore_rx_queues(void)
1238 uint16_t i, nb_rx_queue;
1241 for (i = 0; i < nb_lcore_params; ++i) {
1242 lcore = lcore_params[i].lcore_id;
1243 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1244 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1245 printf("error: too many queues (%u) for lcore: %u\n",
1246 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1249 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1250 lcore_params[i].port_id;
1251 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1252 lcore_params[i].queue_id;
1253 lcore_conf[lcore].n_rx_queue++;
1261 print_usage(const char *prgname)
1263 printf ("%s [EAL options] -- -p PORTMASK -P"
1264 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1265 " [--high-perf-cores CORELIST"
1266 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1267 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1268 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1269 " -P : enable promiscuous mode\n"
1270 " --config (port,queue,lcore): rx queues configuration\n"
1271 " --high-perf-cores CORELIST: list of high performance cores\n"
1272 " --perf-config: similar as config, cores specified as indices"
1273 " for bins containing high or regular performance cores\n"
1274 " --no-numa: optional, disable numa awareness\n"
1275 " --enable-jumbo: enable jumbo frame"
1276 " which max packet len is PKTLEN in decimal (64-9600)\n"
1277 " --parse-ptype: parse packet type by software\n"
1278 " --empty-poll: enable empty poll detection"
1279 " follow (training_flag, high_threshold, med_threshold)\n",
1283 static int parse_max_pkt_len(const char *pktlen)
1288 /* parse decimal string */
1289 len = strtoul(pktlen, &end, 10);
1290 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1300 parse_portmask(const char *portmask)
1305 /* parse hexadecimal string */
1306 pm = strtoul(portmask, &end, 16);
1307 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1317 parse_config(const char *q_arg)
1320 const char *p, *p0 = q_arg;
1328 unsigned long int_fld[_NUM_FLD];
1329 char *str_fld[_NUM_FLD];
1333 nb_lcore_params = 0;
1335 while ((p = strchr(p0,'(')) != NULL) {
1337 if((p0 = strchr(p,')')) == NULL)
1341 if(size >= sizeof(s))
1344 snprintf(s, sizeof(s), "%.*s", size, p);
1345 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1348 for (i = 0; i < _NUM_FLD; i++){
1350 int_fld[i] = strtoul(str_fld[i], &end, 0);
1351 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1355 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1356 printf("exceeded max number of lcore params: %hu\n",
1360 lcore_params_array[nb_lcore_params].port_id =
1361 (uint8_t)int_fld[FLD_PORT];
1362 lcore_params_array[nb_lcore_params].queue_id =
1363 (uint8_t)int_fld[FLD_QUEUE];
1364 lcore_params_array[nb_lcore_params].lcore_id =
1365 (uint8_t)int_fld[FLD_LCORE];
1368 lcore_params = lcore_params_array;
1373 parse_ep_config(const char *q_arg)
1376 const char *p = q_arg;
1386 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1387 ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD;
1389 strlcpy(s, p, sizeof(s));
1391 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1393 empty_poll_train = false;
1400 training_flag = strtoul(str_fld[0], &end, 0);
1401 med_edpi = strtoul(str_fld[1], &end, 0);
1402 hgh_edpi = strtoul(str_fld[2], &end, 0);
1404 if (training_flag == 1)
1405 empty_poll_train = true;
1408 ep_med_edpi = med_edpi;
1411 ep_hgh_edpi = hgh_edpi;
1421 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1423 /* Parse the argument given in the command line of the application */
1425 parse_args(int argc, char **argv)
1431 char *prgname = argv[0];
1432 static struct option lgopts[] = {
1433 {"config", 1, 0, 0},
1434 {"perf-config", 1, 0, 0},
1435 {"high-perf-cores", 1, 0, 0},
1436 {"no-numa", 0, 0, 0},
1437 {"enable-jumbo", 0, 0, 0},
1438 {"empty-poll", 1, 0, 0},
1439 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1445 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1446 lgopts, &option_index)) != EOF) {
1451 enabled_port_mask = parse_portmask(optarg);
1452 if (enabled_port_mask == 0) {
1453 printf("invalid portmask\n");
1454 print_usage(prgname);
1459 printf("Promiscuous mode selected\n");
1463 limit = parse_max_pkt_len(optarg);
1464 freq_tlb[LOW] = limit;
1467 limit = parse_max_pkt_len(optarg);
1468 freq_tlb[MED] = limit;
1471 limit = parse_max_pkt_len(optarg);
1472 freq_tlb[HGH] = limit;
1476 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1477 ret = parse_config(optarg);
1479 printf("invalid config\n");
1480 print_usage(prgname);
1485 if (!strncmp(lgopts[option_index].name,
1486 "perf-config", 11)) {
1487 ret = parse_perf_config(optarg);
1489 printf("invalid perf-config\n");
1490 print_usage(prgname);
1495 if (!strncmp(lgopts[option_index].name,
1496 "high-perf-cores", 15)) {
1497 ret = parse_perf_core_list(optarg);
1499 printf("invalid high-perf-cores\n");
1500 print_usage(prgname);
1505 if (!strncmp(lgopts[option_index].name,
1507 printf("numa is disabled \n");
1511 if (!strncmp(lgopts[option_index].name,
1512 "empty-poll", 10)) {
1513 printf("empty-poll is enabled\n");
1514 empty_poll_on = true;
1515 ret = parse_ep_config(optarg);
1518 printf("invalid empty poll config\n");
1519 print_usage(prgname);
1525 if (!strncmp(lgopts[option_index].name,
1526 "enable-jumbo", 12)) {
1527 struct option lenopts =
1528 {"max-pkt-len", required_argument, \
1531 printf("jumbo frame is enabled \n");
1532 port_conf.rxmode.offloads |=
1533 DEV_RX_OFFLOAD_JUMBO_FRAME;
1534 port_conf.txmode.offloads |=
1535 DEV_TX_OFFLOAD_MULTI_SEGS;
1538 * if no max-pkt-len set, use the default value
1541 if (0 == getopt_long(argc, argvopt, "",
1542 &lenopts, &option_index)) {
1543 ret = parse_max_pkt_len(optarg);
1545 (ret > MAX_JUMBO_PKT_LEN)){
1546 printf("invalid packet "
1548 print_usage(prgname);
1551 port_conf.rxmode.max_rx_pkt_len = ret;
1553 printf("set jumbo frame "
1554 "max packet length to %u\n",
1555 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1558 if (!strncmp(lgopts[option_index].name,
1559 CMD_LINE_OPT_PARSE_PTYPE,
1560 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1561 printf("soft parse-ptype is enabled\n");
1568 print_usage(prgname);
1574 argv[optind-1] = prgname;
1577 optind = 1; /* reset getopt lib */
1582 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
1584 char buf[ETHER_ADDR_FMT_SIZE];
1585 rte_ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
1586 printf("%s%s", name, buf);
1589 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1591 setup_hash(int socketid)
1593 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1595 .entries = L3FWD_HASH_ENTRIES,
1596 .key_len = sizeof(struct ipv4_5tuple),
1597 .hash_func = DEFAULT_HASH_FUNC,
1598 .hash_func_init_val = 0,
1601 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1603 .entries = L3FWD_HASH_ENTRIES,
1604 .key_len = sizeof(struct ipv6_5tuple),
1605 .hash_func = DEFAULT_HASH_FUNC,
1606 .hash_func_init_val = 0,
1613 /* create ipv4 hash */
1614 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1615 ipv4_l3fwd_hash_params.name = s;
1616 ipv4_l3fwd_hash_params.socket_id = socketid;
1617 ipv4_l3fwd_lookup_struct[socketid] =
1618 rte_hash_create(&ipv4_l3fwd_hash_params);
1619 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1620 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1621 "socket %d\n", socketid);
1623 /* create ipv6 hash */
1624 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
1625 ipv6_l3fwd_hash_params.name = s;
1626 ipv6_l3fwd_hash_params.socket_id = socketid;
1627 ipv6_l3fwd_lookup_struct[socketid] =
1628 rte_hash_create(&ipv6_l3fwd_hash_params);
1629 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
1630 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1631 "socket %d\n", socketid);
1634 /* populate the ipv4 hash */
1635 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1636 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
1637 (void *) &ipv4_l3fwd_route_array[i].key);
1639 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1640 "l3fwd hash on socket %d\n", i, socketid);
1642 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
1643 printf("Hash: Adding key\n");
1644 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
1647 /* populate the ipv6 hash */
1648 for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
1649 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
1650 (void *) &ipv6_l3fwd_route_array[i].key);
1652 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1653 "l3fwd hash on socket %d\n", i, socketid);
1655 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
1656 printf("Hash: Adding key\n");
1657 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
1662 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1664 setup_lpm(int socketid)
1670 /* create the LPM table */
1671 struct rte_lpm_config lpm_ipv4_config;
1673 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
1674 lpm_ipv4_config.number_tbl8s = 256;
1675 lpm_ipv4_config.flags = 0;
1677 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
1678 ipv4_l3fwd_lookup_struct[socketid] =
1679 rte_lpm_create(s, socketid, &lpm_ipv4_config);
1680 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1681 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
1682 " on socket %d\n", socketid);
1684 /* populate the LPM table */
1685 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1686 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
1687 ipv4_l3fwd_route_array[i].ip,
1688 ipv4_l3fwd_route_array[i].depth,
1689 ipv4_l3fwd_route_array[i].if_out);
1692 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
1693 "l3fwd LPM table on socket %d\n",
1697 printf("LPM: Adding route 0x%08x / %d (%d)\n",
1698 (unsigned)ipv4_l3fwd_route_array[i].ip,
1699 ipv4_l3fwd_route_array[i].depth,
1700 ipv4_l3fwd_route_array[i].if_out);
1706 init_mem(unsigned nb_mbuf)
1708 struct lcore_conf *qconf;
1713 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1714 if (rte_lcore_is_enabled(lcore_id) == 0)
1718 socketid = rte_lcore_to_socket_id(lcore_id);
1722 if (socketid >= NB_SOCKETS) {
1723 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
1724 "out of range %d\n", socketid,
1725 lcore_id, NB_SOCKETS);
1727 if (pktmbuf_pool[socketid] == NULL) {
1728 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
1729 pktmbuf_pool[socketid] =
1730 rte_pktmbuf_pool_create(s, nb_mbuf,
1731 MEMPOOL_CACHE_SIZE, 0,
1732 RTE_MBUF_DEFAULT_BUF_SIZE,
1734 if (pktmbuf_pool[socketid] == NULL)
1735 rte_exit(EXIT_FAILURE,
1736 "Cannot init mbuf pool on socket %d\n",
1739 printf("Allocated mbuf pool on socket %d\n",
1742 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1743 setup_lpm(socketid);
1745 setup_hash(socketid);
1748 qconf = &lcore_conf[lcore_id];
1749 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
1750 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1751 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
1757 /* Check the link status of all ports in up to 9s, and print them finally */
1759 check_all_ports_link_status(uint32_t port_mask)
1761 #define CHECK_INTERVAL 100 /* 100ms */
1762 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
1763 uint8_t count, all_ports_up, print_flag = 0;
1765 struct rte_eth_link link;
1767 printf("\nChecking link status");
1769 for (count = 0; count <= MAX_CHECK_TIME; count++) {
1771 RTE_ETH_FOREACH_DEV(portid) {
1772 if ((port_mask & (1 << portid)) == 0)
1774 memset(&link, 0, sizeof(link));
1775 rte_eth_link_get_nowait(portid, &link);
1776 /* print link status if flag set */
1777 if (print_flag == 1) {
1778 if (link.link_status)
1779 printf("Port %d Link Up - speed %u "
1780 "Mbps - %s\n", (uint8_t)portid,
1781 (unsigned)link.link_speed,
1782 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
1783 ("full-duplex") : ("half-duplex\n"));
1785 printf("Port %d Link Down\n",
1789 /* clear all_ports_up flag if any link down */
1790 if (link.link_status == ETH_LINK_DOWN) {
1795 /* after finally printing all link status, get out */
1796 if (print_flag == 1)
1799 if (all_ports_up == 0) {
1802 rte_delay_ms(CHECK_INTERVAL);
1805 /* set the print_flag if all ports up or timeout */
1806 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
1813 static int check_ptype(uint16_t portid)
1816 int ptype_l3_ipv4 = 0;
1817 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1818 int ptype_l3_ipv6 = 0;
1820 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
1822 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
1826 uint32_t ptypes[ret];
1828 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
1829 for (i = 0; i < ret; ++i) {
1830 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
1832 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1833 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
1838 if (ptype_l3_ipv4 == 0)
1839 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
1841 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1842 if (ptype_l3_ipv6 == 0)
1843 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
1846 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1848 #else /* APP_LOOKUP_EXACT_MATCH */
1849 if (ptype_l3_ipv4 && ptype_l3_ipv6)
1858 init_power_library(void)
1860 int ret = 0, lcore_id;
1861 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1862 if (rte_lcore_is_enabled(lcore_id)) {
1863 /* init power management library */
1864 ret = rte_power_init(lcore_id);
1867 "Library initialization failed on core %u\n",
1874 empty_poll_setup_timer(void)
1876 int lcore_id = rte_lcore_id();
1877 uint64_t hz = rte_get_timer_hz();
1879 struct ep_params *ep_ptr = ep_params;
1881 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
1883 rte_timer_reset_sync(&ep_ptr->timer0,
1884 ep_ptr->interval_ticks,
1887 rte_empty_poll_detection,
1892 launch_timer(unsigned int lcore_id)
1894 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
1896 RTE_SET_USED(lcore_id);
1899 if (rte_get_master_lcore() != lcore_id) {
1900 rte_panic("timer on lcore:%d which is not master core:%d\n",
1902 rte_get_master_lcore());
1905 RTE_LOG(INFO, POWER, "Bring up the Timer\n");
1907 empty_poll_setup_timer();
1909 cycles_10ms = rte_get_timer_hz() / 100;
1911 while (!is_done()) {
1912 cur_tsc = rte_rdtsc();
1913 diff_tsc = cur_tsc - prev_tsc;
1914 if (diff_tsc > cycles_10ms) {
1917 cycles_10ms = rte_get_timer_hz() / 100;
1921 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
1928 main(int argc, char **argv)
1930 struct lcore_conf *qconf;
1931 struct rte_eth_dev_info dev_info;
1932 struct rte_eth_txconf *txconf;
1938 uint32_t n_tx_queue, nb_lcores;
1939 uint32_t dev_rxq_num, dev_txq_num;
1940 uint8_t nb_rx_queue, queue, socketid;
1943 /* catch SIGINT and restore cpufreq governor to ondemand */
1944 signal(SIGINT, signal_exit_now);
1947 ret = rte_eal_init(argc, argv);
1949 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1953 /* init RTE timer library to be used late */
1954 rte_timer_subsystem_init();
1956 /* parse application arguments (after the EAL ones) */
1957 ret = parse_args(argc, argv);
1959 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
1961 if (init_power_library())
1962 RTE_LOG(ERR, L3FWD_POWER, "init_power_library failed\n");
1964 if (update_lcore_params() < 0)
1965 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
1967 if (check_lcore_params() < 0)
1968 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
1970 ret = init_lcore_rx_queues();
1972 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
1974 nb_ports = rte_eth_dev_count_avail();
1976 if (check_port_config() < 0)
1977 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
1979 nb_lcores = rte_lcore_count();
1981 /* initialize all ports */
1982 RTE_ETH_FOREACH_DEV(portid) {
1983 struct rte_eth_conf local_port_conf = port_conf;
1985 /* skip ports that are not enabled */
1986 if ((enabled_port_mask & (1 << portid)) == 0) {
1987 printf("\nSkipping disabled port %d\n", portid);
1992 printf("Initializing port %d ... ", portid );
1995 rte_eth_dev_info_get(portid, &dev_info);
1996 dev_rxq_num = dev_info.max_rx_queues;
1997 dev_txq_num = dev_info.max_tx_queues;
1999 nb_rx_queue = get_port_n_rx_queues(portid);
2000 if (nb_rx_queue > dev_rxq_num)
2001 rte_exit(EXIT_FAILURE,
2002 "Cannot configure not existed rxq: "
2003 "port=%d\n", portid);
2005 n_tx_queue = nb_lcores;
2006 if (n_tx_queue > dev_txq_num)
2007 n_tx_queue = dev_txq_num;
2008 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2009 nb_rx_queue, (unsigned)n_tx_queue );
2010 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2011 if (nb_rx_queue == 0)
2012 local_port_conf.intr_conf.rxq = 0;
2013 rte_eth_dev_info_get(portid, &dev_info);
2014 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
2015 local_port_conf.txmode.offloads |=
2016 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
2018 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2019 dev_info.flow_type_rss_offloads;
2020 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2021 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2022 printf("Port %u modified RSS hash function based on hardware support,"
2023 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2025 port_conf.rx_adv_conf.rss_conf.rss_hf,
2026 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2029 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2030 (uint16_t)n_tx_queue, &local_port_conf);
2032 rte_exit(EXIT_FAILURE, "Cannot configure device: "
2033 "err=%d, port=%d\n", ret, portid);
2035 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2038 rte_exit(EXIT_FAILURE,
2039 "Cannot adjust number of descriptors: err=%d, port=%d\n",
2042 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2043 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2047 ret = init_mem(NB_MBUF);
2049 rte_exit(EXIT_FAILURE, "init_mem failed\n");
2051 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2052 if (rte_lcore_is_enabled(lcore_id) == 0)
2055 /* Initialize TX buffers */
2056 qconf = &lcore_conf[lcore_id];
2057 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2058 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2059 rte_eth_dev_socket_id(portid));
2060 if (qconf->tx_buffer[portid] == NULL)
2061 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2064 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2067 /* init one TX queue per couple (lcore,port) */
2069 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2070 if (rte_lcore_is_enabled(lcore_id) == 0)
2073 if (queueid >= dev_txq_num)
2078 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2082 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2085 txconf = &dev_info.default_txconf;
2086 txconf->offloads = local_port_conf.txmode.offloads;
2087 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2090 rte_exit(EXIT_FAILURE,
2091 "rte_eth_tx_queue_setup: err=%d, "
2092 "port=%d\n", ret, portid);
2094 qconf = &lcore_conf[lcore_id];
2095 qconf->tx_queue_id[portid] = queueid;
2098 qconf->tx_port_id[qconf->n_tx_port] = portid;
2104 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2105 if (rte_lcore_is_enabled(lcore_id) == 0)
2108 if (empty_poll_on == false) {
2109 /* init timer structures for each enabled lcore */
2110 rte_timer_init(&power_timers[lcore_id]);
2111 hz = rte_get_timer_hz();
2112 rte_timer_reset(&power_timers[lcore_id],
2113 hz/TIMER_NUMBER_PER_SECOND,
2115 power_timer_cb, NULL);
2117 qconf = &lcore_conf[lcore_id];
2118 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2120 /* init RX queues */
2121 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2122 struct rte_eth_rxconf rxq_conf;
2123 struct rte_eth_dev *dev;
2124 struct rte_eth_conf *conf;
2126 portid = qconf->rx_queue_list[queue].port_id;
2127 queueid = qconf->rx_queue_list[queue].queue_id;
2128 dev = &rte_eth_devices[portid];
2129 conf = &dev->data->dev_conf;
2133 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2137 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2140 rte_eth_dev_info_get(portid, &dev_info);
2141 rxq_conf = dev_info.default_rxconf;
2142 rxq_conf.offloads = conf->rxmode.offloads;
2143 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2144 socketid, &rxq_conf,
2145 pktmbuf_pool[socketid]);
2147 rte_exit(EXIT_FAILURE,
2148 "rte_eth_rx_queue_setup: err=%d, "
2149 "port=%d\n", ret, portid);
2152 if (add_cb_parse_ptype(portid, queueid) < 0)
2153 rte_exit(EXIT_FAILURE,
2154 "Fail to add ptype cb\n");
2155 } else if (!check_ptype(portid))
2156 rte_exit(EXIT_FAILURE,
2157 "PMD can not provide needed ptypes\n");
2164 RTE_ETH_FOREACH_DEV(portid) {
2165 if ((enabled_port_mask & (1 << portid)) == 0) {
2169 ret = rte_eth_dev_start(portid);
2171 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2172 "port=%d\n", ret, portid);
2174 * If enabled, put device in promiscuous mode.
2175 * This allows IO forwarding mode to forward packets
2176 * to itself through 2 cross-connected ports of the
2180 rte_eth_promiscuous_enable(portid);
2181 /* initialize spinlock for each port */
2182 rte_spinlock_init(&(locks[portid]));
2185 check_all_ports_link_status(enabled_port_mask);
2187 if (empty_poll_on == true) {
2189 if (empty_poll_train) {
2190 policy.state = TRAINING;
2192 policy.state = MED_NORMAL;
2193 policy.med_base_edpi = ep_med_edpi;
2194 policy.hgh_base_edpi = ep_hgh_edpi;
2197 ret = rte_power_empty_poll_stat_init(&ep_params,
2201 rte_exit(EXIT_FAILURE, "empty poll init failed");
2205 /* launch per-lcore init on every lcore */
2206 if (empty_poll_on == false) {
2207 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
2209 empty_poll_stop = false;
2210 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2214 if (empty_poll_on == true)
2215 launch_timer(rte_lcore_id());
2217 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
2218 if (rte_eal_wait_lcore(lcore_id) < 0)
2223 rte_power_empty_poll_stat_free();