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 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 ether_hdr *eth_hdr;
622 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
625 eth_hdr = rte_pktmbuf_mtod(m, struct 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 ether_hdr *eth_hdr;
665 struct ipv4_hdr *ipv4_hdr;
669 eth_hdr = rte_pktmbuf_mtod(m, struct 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 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 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
705 send_single_packet(m, dst_port);
706 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
707 /* Handle IPv6 headers.*/
708 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
709 struct ipv6_hdr *ipv6_hdr;
712 rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
713 sizeof(struct ether_hdr));
715 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
716 qconf->ipv6_lookup_struct);
718 if (dst_port >= RTE_MAX_ETHPORTS ||
719 (enabled_port_mask & 1 << dst_port) == 0)
722 /* 02:00:00:00:00:xx */
723 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
724 *((uint64_t *)d_addr_bytes) =
725 0x000000000002 + ((uint64_t)dst_port << 40);
728 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
730 send_single_packet(m, dst_port);
732 /* We don't currently handle IPv6 packets in LPM mode. */
740 #define MINIMUM_SLEEP_TIME 1
741 #define SUSPEND_THRESHOLD 300
743 static inline uint32_t
744 power_idle_heuristic(uint32_t zero_rx_packet_count)
746 /* If zero count is less than 100, sleep 1us */
747 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
748 return MINIMUM_SLEEP_TIME;
749 /* If zero count is less than 1000, sleep 100 us which is the
750 minimum latency switching from C3/C6 to C0
753 return SUSPEND_THRESHOLD;
756 static inline enum freq_scale_hint_t
757 power_freq_scaleup_heuristic(unsigned lcore_id,
761 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
763 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
766 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
767 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
768 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
769 #define FREQ_UP_TREND1_ACC 1
770 #define FREQ_UP_TREND2_ACC 100
771 #define FREQ_UP_THRESHOLD 10000
773 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
774 stats[lcore_id].trend = 0;
776 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
777 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
778 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
779 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
781 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
782 stats[lcore_id].trend = 0;
790 * force polling thread sleep until one-shot rx interrupt triggers
799 sleep_until_rx_interrupt(int num)
801 struct rte_epoll_event event[num];
807 RTE_LOG(INFO, L3FWD_POWER,
808 "lcore %u sleeps until interrupt triggers\n",
811 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
812 for (i = 0; i < n; i++) {
813 data = event[i].epdata.data;
814 port_id = ((uintptr_t)data) >> CHAR_BIT;
815 queue_id = ((uintptr_t)data) &
816 RTE_LEN2MASK(CHAR_BIT, uint8_t);
817 rte_eth_dev_rx_intr_disable(port_id, queue_id);
818 RTE_LOG(INFO, L3FWD_POWER,
819 "lcore %u is waked up from rx interrupt on"
820 " port %d queue %d\n",
821 rte_lcore_id(), port_id, queue_id);
827 static void turn_on_intr(struct lcore_conf *qconf)
830 struct lcore_rx_queue *rx_queue;
834 for (i = 0; i < qconf->n_rx_queue; ++i) {
835 rx_queue = &(qconf->rx_queue_list[i]);
836 port_id = rx_queue->port_id;
837 queue_id = rx_queue->queue_id;
839 rte_spinlock_lock(&(locks[port_id]));
840 rte_eth_dev_rx_intr_enable(port_id, queue_id);
841 rte_spinlock_unlock(&(locks[port_id]));
845 static int event_register(struct lcore_conf *qconf)
847 struct lcore_rx_queue *rx_queue;
854 for (i = 0; i < qconf->n_rx_queue; ++i) {
855 rx_queue = &(qconf->rx_queue_list[i]);
856 portid = rx_queue->port_id;
857 queueid = rx_queue->queue_id;
858 data = portid << CHAR_BIT | queueid;
860 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
861 RTE_EPOLL_PER_THREAD,
863 (void *)((uintptr_t)data));
870 /* main processing loop */
872 main_empty_poll_loop(__attribute__((unused)) void *dummy)
874 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
875 unsigned int lcore_id;
876 uint64_t prev_tsc, diff_tsc, cur_tsc;
880 struct lcore_conf *qconf;
881 struct lcore_rx_queue *rx_queue;
883 const uint64_t drain_tsc =
884 (rte_get_tsc_hz() + US_PER_S - 1) /
885 US_PER_S * BURST_TX_DRAIN_US;
889 lcore_id = rte_lcore_id();
890 qconf = &lcore_conf[lcore_id];
892 if (qconf->n_rx_queue == 0) {
893 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
898 for (i = 0; i < qconf->n_rx_queue; i++) {
899 portid = qconf->rx_queue_list[i].port_id;
900 queueid = qconf->rx_queue_list[i].queue_id;
901 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
902 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
906 stats[lcore_id].nb_iteration_looped++;
908 cur_tsc = rte_rdtsc();
910 * TX burst queue drain
912 diff_tsc = cur_tsc - prev_tsc;
913 if (unlikely(diff_tsc > drain_tsc)) {
914 for (i = 0; i < qconf->n_tx_port; ++i) {
915 portid = qconf->tx_port_id[i];
916 rte_eth_tx_buffer_flush(portid,
917 qconf->tx_queue_id[portid],
918 qconf->tx_buffer[portid]);
924 * Read packet from RX queues
926 for (i = 0; i < qconf->n_rx_queue; ++i) {
927 rx_queue = &(qconf->rx_queue_list[i]);
928 rx_queue->idle_hint = 0;
929 portid = rx_queue->port_id;
930 queueid = rx_queue->queue_id;
932 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
935 stats[lcore_id].nb_rx_processed += nb_rx;
939 rte_power_empty_poll_stat_update(lcore_id);
943 rte_power_poll_stat_update(lcore_id, nb_rx);
947 /* Prefetch first packets */
948 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
949 rte_prefetch0(rte_pktmbuf_mtod(
950 pkts_burst[j], void *));
953 /* Prefetch and forward already prefetched packets */
954 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
955 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
956 j + PREFETCH_OFFSET],
958 l3fwd_simple_forward(pkts_burst[j], portid,
962 /* Forward remaining prefetched packets */
963 for (; j < nb_rx; j++) {
964 l3fwd_simple_forward(pkts_burst[j], portid,
974 /* main processing loop */
976 main_loop(__attribute__((unused)) void *dummy)
978 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
980 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
981 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
985 struct lcore_conf *qconf;
986 struct lcore_rx_queue *rx_queue;
987 enum freq_scale_hint_t lcore_scaleup_hint;
988 uint32_t lcore_rx_idle_count = 0;
989 uint32_t lcore_idle_hint = 0;
992 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
995 hz = rte_get_timer_hz();
996 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
998 lcore_id = rte_lcore_id();
999 qconf = &lcore_conf[lcore_id];
1001 if (qconf->n_rx_queue == 0) {
1002 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1006 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1008 for (i = 0; i < qconf->n_rx_queue; i++) {
1009 portid = qconf->rx_queue_list[i].port_id;
1010 queueid = qconf->rx_queue_list[i].queue_id;
1011 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1012 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1015 /* add into event wait list */
1016 if (event_register(qconf) == 0)
1019 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1022 stats[lcore_id].nb_iteration_looped++;
1024 cur_tsc = rte_rdtsc();
1025 cur_tsc_power = cur_tsc;
1028 * TX burst queue drain
1030 diff_tsc = cur_tsc - prev_tsc;
1031 if (unlikely(diff_tsc > drain_tsc)) {
1032 for (i = 0; i < qconf->n_tx_port; ++i) {
1033 portid = qconf->tx_port_id[i];
1034 rte_eth_tx_buffer_flush(portid,
1035 qconf->tx_queue_id[portid],
1036 qconf->tx_buffer[portid]);
1041 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1042 if (diff_tsc_power > tim_res_tsc) {
1044 prev_tsc_power = cur_tsc_power;
1049 * Read packet from RX queues
1051 lcore_scaleup_hint = FREQ_CURRENT;
1052 lcore_rx_idle_count = 0;
1053 for (i = 0; i < qconf->n_rx_queue; ++i) {
1054 rx_queue = &(qconf->rx_queue_list[i]);
1055 rx_queue->idle_hint = 0;
1056 portid = rx_queue->port_id;
1057 queueid = rx_queue->queue_id;
1059 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1062 stats[lcore_id].nb_rx_processed += nb_rx;
1063 if (unlikely(nb_rx == 0)) {
1065 * no packet received from rx queue, try to
1066 * sleep for a while forcing CPU enter deeper
1069 rx_queue->zero_rx_packet_count++;
1071 if (rx_queue->zero_rx_packet_count <=
1072 MIN_ZERO_POLL_COUNT)
1075 rx_queue->idle_hint = power_idle_heuristic(\
1076 rx_queue->zero_rx_packet_count);
1077 lcore_rx_idle_count++;
1079 rx_queue->zero_rx_packet_count = 0;
1082 * do not scale up frequency immediately as
1083 * user to kernel space communication is costly
1084 * which might impact packet I/O for received
1087 rx_queue->freq_up_hint =
1088 power_freq_scaleup_heuristic(lcore_id,
1092 /* Prefetch first packets */
1093 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1094 rte_prefetch0(rte_pktmbuf_mtod(
1095 pkts_burst[j], void *));
1098 /* Prefetch and forward already prefetched packets */
1099 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1100 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1101 j + PREFETCH_OFFSET], void *));
1102 l3fwd_simple_forward(pkts_burst[j], portid,
1106 /* Forward remaining prefetched packets */
1107 for (; j < nb_rx; j++) {
1108 l3fwd_simple_forward(pkts_burst[j], portid,
1113 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1114 for (i = 1, lcore_scaleup_hint =
1115 qconf->rx_queue_list[0].freq_up_hint;
1116 i < qconf->n_rx_queue; ++i) {
1117 rx_queue = &(qconf->rx_queue_list[i]);
1118 if (rx_queue->freq_up_hint >
1120 lcore_scaleup_hint =
1121 rx_queue->freq_up_hint;
1124 if (lcore_scaleup_hint == FREQ_HIGHEST) {
1125 if (rte_power_freq_max)
1126 rte_power_freq_max(lcore_id);
1127 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1128 if (rte_power_freq_up)
1129 rte_power_freq_up(lcore_id);
1133 * All Rx queues empty in recent consecutive polls,
1134 * sleep in a conservative manner, meaning sleep as
1137 for (i = 1, lcore_idle_hint =
1138 qconf->rx_queue_list[0].idle_hint;
1139 i < qconf->n_rx_queue; ++i) {
1140 rx_queue = &(qconf->rx_queue_list[i]);
1141 if (rx_queue->idle_hint < lcore_idle_hint)
1142 lcore_idle_hint = rx_queue->idle_hint;
1145 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1147 * execute "pause" instruction to avoid context
1148 * switch which generally take hundred of
1149 * microseconds for short sleep.
1151 rte_delay_us(lcore_idle_hint);
1153 /* suspend until rx interrupt trigges */
1155 turn_on_intr(qconf);
1156 sleep_until_rx_interrupt(
1159 * start receiving packets immediately
1164 stats[lcore_id].sleep_time += lcore_idle_hint;
1170 check_lcore_params(void)
1172 uint8_t queue, lcore;
1176 for (i = 0; i < nb_lcore_params; ++i) {
1177 queue = lcore_params[i].queue_id;
1178 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1179 printf("invalid queue number: %hhu\n", queue);
1182 lcore = lcore_params[i].lcore_id;
1183 if (!rte_lcore_is_enabled(lcore)) {
1184 printf("error: lcore %hhu is not enabled in lcore "
1188 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1190 printf("warning: lcore %hhu is on socket %d with numa "
1191 "off\n", lcore, socketid);
1198 check_port_config(void)
1203 for (i = 0; i < nb_lcore_params; ++i) {
1204 portid = lcore_params[i].port_id;
1205 if ((enabled_port_mask & (1 << portid)) == 0) {
1206 printf("port %u is not enabled in port mask\n",
1210 if (!rte_eth_dev_is_valid_port(portid)) {
1211 printf("port %u is not present on the board\n",
1220 get_port_n_rx_queues(const uint16_t port)
1225 for (i = 0; i < nb_lcore_params; ++i) {
1226 if (lcore_params[i].port_id == port &&
1227 lcore_params[i].queue_id > queue)
1228 queue = lcore_params[i].queue_id;
1230 return (uint8_t)(++queue);
1234 init_lcore_rx_queues(void)
1236 uint16_t i, nb_rx_queue;
1239 for (i = 0; i < nb_lcore_params; ++i) {
1240 lcore = lcore_params[i].lcore_id;
1241 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1242 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1243 printf("error: too many queues (%u) for lcore: %u\n",
1244 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1247 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1248 lcore_params[i].port_id;
1249 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1250 lcore_params[i].queue_id;
1251 lcore_conf[lcore].n_rx_queue++;
1259 print_usage(const char *prgname)
1261 printf ("%s [EAL options] -- -p PORTMASK -P"
1262 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1263 " [--high-perf-cores CORELIST"
1264 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1265 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1266 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1267 " -P : enable promiscuous mode\n"
1268 " --config (port,queue,lcore): rx queues configuration\n"
1269 " --high-perf-cores CORELIST: list of high performance cores\n"
1270 " --perf-config: similar as config, cores specified as indices"
1271 " for bins containing high or regular performance cores\n"
1272 " --no-numa: optional, disable numa awareness\n"
1273 " --enable-jumbo: enable jumbo frame"
1274 " which max packet len is PKTLEN in decimal (64-9600)\n"
1275 " --parse-ptype: parse packet type by software\n"
1276 " --empty-poll: enable empty poll detection"
1277 " follow (training_flag, high_threshold, med_threshold)\n",
1281 static int parse_max_pkt_len(const char *pktlen)
1286 /* parse decimal string */
1287 len = strtoul(pktlen, &end, 10);
1288 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1298 parse_portmask(const char *portmask)
1303 /* parse hexadecimal string */
1304 pm = strtoul(portmask, &end, 16);
1305 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1315 parse_config(const char *q_arg)
1318 const char *p, *p0 = q_arg;
1326 unsigned long int_fld[_NUM_FLD];
1327 char *str_fld[_NUM_FLD];
1331 nb_lcore_params = 0;
1333 while ((p = strchr(p0,'(')) != NULL) {
1335 if((p0 = strchr(p,')')) == NULL)
1339 if(size >= sizeof(s))
1342 snprintf(s, sizeof(s), "%.*s", size, p);
1343 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1346 for (i = 0; i < _NUM_FLD; i++){
1348 int_fld[i] = strtoul(str_fld[i], &end, 0);
1349 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1353 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1354 printf("exceeded max number of lcore params: %hu\n",
1358 lcore_params_array[nb_lcore_params].port_id =
1359 (uint8_t)int_fld[FLD_PORT];
1360 lcore_params_array[nb_lcore_params].queue_id =
1361 (uint8_t)int_fld[FLD_QUEUE];
1362 lcore_params_array[nb_lcore_params].lcore_id =
1363 (uint8_t)int_fld[FLD_LCORE];
1366 lcore_params = lcore_params_array;
1371 parse_ep_config(const char *q_arg)
1374 const char *p = q_arg;
1384 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1385 ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD;
1387 strlcpy(s, p, sizeof(s));
1389 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1391 empty_poll_train = false;
1398 training_flag = strtoul(str_fld[0], &end, 0);
1399 med_edpi = strtoul(str_fld[1], &end, 0);
1400 hgh_edpi = strtoul(str_fld[2], &end, 0);
1402 if (training_flag == 1)
1403 empty_poll_train = true;
1406 ep_med_edpi = med_edpi;
1409 ep_hgh_edpi = hgh_edpi;
1419 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1421 /* Parse the argument given in the command line of the application */
1423 parse_args(int argc, char **argv)
1429 char *prgname = argv[0];
1430 static struct option lgopts[] = {
1431 {"config", 1, 0, 0},
1432 {"perf-config", 1, 0, 0},
1433 {"high-perf-cores", 1, 0, 0},
1434 {"no-numa", 0, 0, 0},
1435 {"enable-jumbo", 0, 0, 0},
1436 {"empty-poll", 1, 0, 0},
1437 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1443 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1444 lgopts, &option_index)) != EOF) {
1449 enabled_port_mask = parse_portmask(optarg);
1450 if (enabled_port_mask == 0) {
1451 printf("invalid portmask\n");
1452 print_usage(prgname);
1457 printf("Promiscuous mode selected\n");
1461 limit = parse_max_pkt_len(optarg);
1462 freq_tlb[LOW] = limit;
1465 limit = parse_max_pkt_len(optarg);
1466 freq_tlb[MED] = limit;
1469 limit = parse_max_pkt_len(optarg);
1470 freq_tlb[HGH] = limit;
1474 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1475 ret = parse_config(optarg);
1477 printf("invalid config\n");
1478 print_usage(prgname);
1483 if (!strncmp(lgopts[option_index].name,
1484 "perf-config", 11)) {
1485 ret = parse_perf_config(optarg);
1487 printf("invalid perf-config\n");
1488 print_usage(prgname);
1493 if (!strncmp(lgopts[option_index].name,
1494 "high-perf-cores", 15)) {
1495 ret = parse_perf_core_list(optarg);
1497 printf("invalid high-perf-cores\n");
1498 print_usage(prgname);
1503 if (!strncmp(lgopts[option_index].name,
1505 printf("numa is disabled \n");
1509 if (!strncmp(lgopts[option_index].name,
1510 "empty-poll", 10)) {
1511 printf("empty-poll is enabled\n");
1512 empty_poll_on = true;
1513 ret = parse_ep_config(optarg);
1516 printf("invalid empty poll config\n");
1517 print_usage(prgname);
1523 if (!strncmp(lgopts[option_index].name,
1524 "enable-jumbo", 12)) {
1525 struct option lenopts =
1526 {"max-pkt-len", required_argument, \
1529 printf("jumbo frame is enabled \n");
1530 port_conf.rxmode.offloads |=
1531 DEV_RX_OFFLOAD_JUMBO_FRAME;
1532 port_conf.txmode.offloads |=
1533 DEV_TX_OFFLOAD_MULTI_SEGS;
1536 * if no max-pkt-len set, use the default value
1539 if (0 == getopt_long(argc, argvopt, "",
1540 &lenopts, &option_index)) {
1541 ret = parse_max_pkt_len(optarg);
1543 (ret > MAX_JUMBO_PKT_LEN)){
1544 printf("invalid packet "
1546 print_usage(prgname);
1549 port_conf.rxmode.max_rx_pkt_len = ret;
1551 printf("set jumbo frame "
1552 "max packet length to %u\n",
1553 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1556 if (!strncmp(lgopts[option_index].name,
1557 CMD_LINE_OPT_PARSE_PTYPE,
1558 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1559 printf("soft parse-ptype is enabled\n");
1566 print_usage(prgname);
1572 argv[optind-1] = prgname;
1575 optind = 1; /* reset getopt lib */
1580 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
1582 char buf[ETHER_ADDR_FMT_SIZE];
1583 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
1584 printf("%s%s", name, buf);
1587 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1589 setup_hash(int socketid)
1591 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1593 .entries = L3FWD_HASH_ENTRIES,
1594 .key_len = sizeof(struct ipv4_5tuple),
1595 .hash_func = DEFAULT_HASH_FUNC,
1596 .hash_func_init_val = 0,
1599 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1601 .entries = L3FWD_HASH_ENTRIES,
1602 .key_len = sizeof(struct ipv6_5tuple),
1603 .hash_func = DEFAULT_HASH_FUNC,
1604 .hash_func_init_val = 0,
1611 /* create ipv4 hash */
1612 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1613 ipv4_l3fwd_hash_params.name = s;
1614 ipv4_l3fwd_hash_params.socket_id = socketid;
1615 ipv4_l3fwd_lookup_struct[socketid] =
1616 rte_hash_create(&ipv4_l3fwd_hash_params);
1617 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1618 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1619 "socket %d\n", socketid);
1621 /* create ipv6 hash */
1622 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
1623 ipv6_l3fwd_hash_params.name = s;
1624 ipv6_l3fwd_hash_params.socket_id = socketid;
1625 ipv6_l3fwd_lookup_struct[socketid] =
1626 rte_hash_create(&ipv6_l3fwd_hash_params);
1627 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
1628 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1629 "socket %d\n", socketid);
1632 /* populate the ipv4 hash */
1633 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1634 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
1635 (void *) &ipv4_l3fwd_route_array[i].key);
1637 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1638 "l3fwd hash on socket %d\n", i, socketid);
1640 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
1641 printf("Hash: Adding key\n");
1642 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
1645 /* populate the ipv6 hash */
1646 for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
1647 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
1648 (void *) &ipv6_l3fwd_route_array[i].key);
1650 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
1651 "l3fwd hash on socket %d\n", i, socketid);
1653 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
1654 printf("Hash: Adding key\n");
1655 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
1660 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1662 setup_lpm(int socketid)
1668 /* create the LPM table */
1669 struct rte_lpm_config lpm_ipv4_config;
1671 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
1672 lpm_ipv4_config.number_tbl8s = 256;
1673 lpm_ipv4_config.flags = 0;
1675 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
1676 ipv4_l3fwd_lookup_struct[socketid] =
1677 rte_lpm_create(s, socketid, &lpm_ipv4_config);
1678 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1679 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
1680 " on socket %d\n", socketid);
1682 /* populate the LPM table */
1683 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
1684 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
1685 ipv4_l3fwd_route_array[i].ip,
1686 ipv4_l3fwd_route_array[i].depth,
1687 ipv4_l3fwd_route_array[i].if_out);
1690 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
1691 "l3fwd LPM table on socket %d\n",
1695 printf("LPM: Adding route 0x%08x / %d (%d)\n",
1696 (unsigned)ipv4_l3fwd_route_array[i].ip,
1697 ipv4_l3fwd_route_array[i].depth,
1698 ipv4_l3fwd_route_array[i].if_out);
1704 init_mem(unsigned nb_mbuf)
1706 struct lcore_conf *qconf;
1711 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1712 if (rte_lcore_is_enabled(lcore_id) == 0)
1716 socketid = rte_lcore_to_socket_id(lcore_id);
1720 if (socketid >= NB_SOCKETS) {
1721 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
1722 "out of range %d\n", socketid,
1723 lcore_id, NB_SOCKETS);
1725 if (pktmbuf_pool[socketid] == NULL) {
1726 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
1727 pktmbuf_pool[socketid] =
1728 rte_pktmbuf_pool_create(s, nb_mbuf,
1729 MEMPOOL_CACHE_SIZE, 0,
1730 RTE_MBUF_DEFAULT_BUF_SIZE,
1732 if (pktmbuf_pool[socketid] == NULL)
1733 rte_exit(EXIT_FAILURE,
1734 "Cannot init mbuf pool on socket %d\n",
1737 printf("Allocated mbuf pool on socket %d\n",
1740 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1741 setup_lpm(socketid);
1743 setup_hash(socketid);
1746 qconf = &lcore_conf[lcore_id];
1747 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
1748 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1749 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
1755 /* Check the link status of all ports in up to 9s, and print them finally */
1757 check_all_ports_link_status(uint32_t port_mask)
1759 #define CHECK_INTERVAL 100 /* 100ms */
1760 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
1761 uint8_t count, all_ports_up, print_flag = 0;
1763 struct rte_eth_link link;
1765 printf("\nChecking link status");
1767 for (count = 0; count <= MAX_CHECK_TIME; count++) {
1769 RTE_ETH_FOREACH_DEV(portid) {
1770 if ((port_mask & (1 << portid)) == 0)
1772 memset(&link, 0, sizeof(link));
1773 rte_eth_link_get_nowait(portid, &link);
1774 /* print link status if flag set */
1775 if (print_flag == 1) {
1776 if (link.link_status)
1777 printf("Port %d Link Up - speed %u "
1778 "Mbps - %s\n", (uint8_t)portid,
1779 (unsigned)link.link_speed,
1780 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
1781 ("full-duplex") : ("half-duplex\n"));
1783 printf("Port %d Link Down\n",
1787 /* clear all_ports_up flag if any link down */
1788 if (link.link_status == ETH_LINK_DOWN) {
1793 /* after finally printing all link status, get out */
1794 if (print_flag == 1)
1797 if (all_ports_up == 0) {
1800 rte_delay_ms(CHECK_INTERVAL);
1803 /* set the print_flag if all ports up or timeout */
1804 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
1811 static int check_ptype(uint16_t portid)
1814 int ptype_l3_ipv4 = 0;
1815 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1816 int ptype_l3_ipv6 = 0;
1818 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
1820 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
1824 uint32_t ptypes[ret];
1826 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
1827 for (i = 0; i < ret; ++i) {
1828 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
1830 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1831 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
1836 if (ptype_l3_ipv4 == 0)
1837 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
1839 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1840 if (ptype_l3_ipv6 == 0)
1841 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
1844 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1846 #else /* APP_LOOKUP_EXACT_MATCH */
1847 if (ptype_l3_ipv4 && ptype_l3_ipv6)
1856 init_power_library(void)
1858 int ret = 0, lcore_id;
1859 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
1860 if (rte_lcore_is_enabled(lcore_id)) {
1861 /* init power management library */
1862 ret = rte_power_init(lcore_id);
1865 "Library initialization failed on core %u\n",
1872 empty_poll_setup_timer(void)
1874 int lcore_id = rte_lcore_id();
1875 uint64_t hz = rte_get_timer_hz();
1877 struct ep_params *ep_ptr = ep_params;
1879 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
1881 rte_timer_reset_sync(&ep_ptr->timer0,
1882 ep_ptr->interval_ticks,
1885 rte_empty_poll_detection,
1890 launch_timer(unsigned int lcore_id)
1892 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
1894 RTE_SET_USED(lcore_id);
1897 if (rte_get_master_lcore() != lcore_id) {
1898 rte_panic("timer on lcore:%d which is not master core:%d\n",
1900 rte_get_master_lcore());
1903 RTE_LOG(INFO, POWER, "Bring up the Timer\n");
1905 empty_poll_setup_timer();
1907 cycles_10ms = rte_get_timer_hz() / 100;
1909 while (!is_done()) {
1910 cur_tsc = rte_rdtsc();
1911 diff_tsc = cur_tsc - prev_tsc;
1912 if (diff_tsc > cycles_10ms) {
1915 cycles_10ms = rte_get_timer_hz() / 100;
1919 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
1926 main(int argc, char **argv)
1928 struct lcore_conf *qconf;
1929 struct rte_eth_dev_info dev_info;
1930 struct rte_eth_txconf *txconf;
1936 uint32_t n_tx_queue, nb_lcores;
1937 uint32_t dev_rxq_num, dev_txq_num;
1938 uint8_t nb_rx_queue, queue, socketid;
1941 /* catch SIGINT and restore cpufreq governor to ondemand */
1942 signal(SIGINT, signal_exit_now);
1945 ret = rte_eal_init(argc, argv);
1947 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
1951 /* init RTE timer library to be used late */
1952 rte_timer_subsystem_init();
1954 /* parse application arguments (after the EAL ones) */
1955 ret = parse_args(argc, argv);
1957 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
1959 if (init_power_library())
1960 RTE_LOG(ERR, L3FWD_POWER, "init_power_library failed\n");
1962 if (update_lcore_params() < 0)
1963 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
1965 if (check_lcore_params() < 0)
1966 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
1968 ret = init_lcore_rx_queues();
1970 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
1972 nb_ports = rte_eth_dev_count_avail();
1974 if (check_port_config() < 0)
1975 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
1977 nb_lcores = rte_lcore_count();
1979 /* initialize all ports */
1980 RTE_ETH_FOREACH_DEV(portid) {
1981 struct rte_eth_conf local_port_conf = port_conf;
1983 /* skip ports that are not enabled */
1984 if ((enabled_port_mask & (1 << portid)) == 0) {
1985 printf("\nSkipping disabled port %d\n", portid);
1990 printf("Initializing port %d ... ", portid );
1993 rte_eth_dev_info_get(portid, &dev_info);
1994 dev_rxq_num = dev_info.max_rx_queues;
1995 dev_txq_num = dev_info.max_tx_queues;
1997 nb_rx_queue = get_port_n_rx_queues(portid);
1998 if (nb_rx_queue > dev_rxq_num)
1999 rte_exit(EXIT_FAILURE,
2000 "Cannot configure not existed rxq: "
2001 "port=%d\n", portid);
2003 n_tx_queue = nb_lcores;
2004 if (n_tx_queue > dev_txq_num)
2005 n_tx_queue = dev_txq_num;
2006 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2007 nb_rx_queue, (unsigned)n_tx_queue );
2008 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2009 if (nb_rx_queue == 0)
2010 local_port_conf.intr_conf.rxq = 0;
2011 rte_eth_dev_info_get(portid, &dev_info);
2012 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
2013 local_port_conf.txmode.offloads |=
2014 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
2016 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2017 dev_info.flow_type_rss_offloads;
2018 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2019 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2020 printf("Port %u modified RSS hash function based on hardware support,"
2021 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2023 port_conf.rx_adv_conf.rss_conf.rss_hf,
2024 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2027 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2028 (uint16_t)n_tx_queue, &local_port_conf);
2030 rte_exit(EXIT_FAILURE, "Cannot configure device: "
2031 "err=%d, port=%d\n", ret, portid);
2033 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2036 rte_exit(EXIT_FAILURE,
2037 "Cannot adjust number of descriptors: err=%d, port=%d\n",
2040 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2041 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2045 ret = init_mem(NB_MBUF);
2047 rte_exit(EXIT_FAILURE, "init_mem failed\n");
2049 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2050 if (rte_lcore_is_enabled(lcore_id) == 0)
2053 /* Initialize TX buffers */
2054 qconf = &lcore_conf[lcore_id];
2055 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2056 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2057 rte_eth_dev_socket_id(portid));
2058 if (qconf->tx_buffer[portid] == NULL)
2059 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2062 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2065 /* init one TX queue per couple (lcore,port) */
2067 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2068 if (rte_lcore_is_enabled(lcore_id) == 0)
2071 if (queueid >= dev_txq_num)
2076 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2080 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2083 txconf = &dev_info.default_txconf;
2084 txconf->offloads = local_port_conf.txmode.offloads;
2085 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2088 rte_exit(EXIT_FAILURE,
2089 "rte_eth_tx_queue_setup: err=%d, "
2090 "port=%d\n", ret, portid);
2092 qconf = &lcore_conf[lcore_id];
2093 qconf->tx_queue_id[portid] = queueid;
2096 qconf->tx_port_id[qconf->n_tx_port] = portid;
2102 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2103 if (rte_lcore_is_enabled(lcore_id) == 0)
2106 if (empty_poll_on == false) {
2107 /* init timer structures for each enabled lcore */
2108 rte_timer_init(&power_timers[lcore_id]);
2109 hz = rte_get_timer_hz();
2110 rte_timer_reset(&power_timers[lcore_id],
2111 hz/TIMER_NUMBER_PER_SECOND,
2113 power_timer_cb, NULL);
2115 qconf = &lcore_conf[lcore_id];
2116 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2118 /* init RX queues */
2119 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2120 struct rte_eth_rxconf rxq_conf;
2121 struct rte_eth_dev *dev;
2122 struct rte_eth_conf *conf;
2124 portid = qconf->rx_queue_list[queue].port_id;
2125 queueid = qconf->rx_queue_list[queue].queue_id;
2126 dev = &rte_eth_devices[portid];
2127 conf = &dev->data->dev_conf;
2131 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2135 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2138 rte_eth_dev_info_get(portid, &dev_info);
2139 rxq_conf = dev_info.default_rxconf;
2140 rxq_conf.offloads = conf->rxmode.offloads;
2141 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2142 socketid, &rxq_conf,
2143 pktmbuf_pool[socketid]);
2145 rte_exit(EXIT_FAILURE,
2146 "rte_eth_rx_queue_setup: err=%d, "
2147 "port=%d\n", ret, portid);
2150 if (add_cb_parse_ptype(portid, queueid) < 0)
2151 rte_exit(EXIT_FAILURE,
2152 "Fail to add ptype cb\n");
2153 } else if (!check_ptype(portid))
2154 rte_exit(EXIT_FAILURE,
2155 "PMD can not provide needed ptypes\n");
2162 RTE_ETH_FOREACH_DEV(portid) {
2163 if ((enabled_port_mask & (1 << portid)) == 0) {
2167 ret = rte_eth_dev_start(portid);
2169 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2170 "port=%d\n", ret, portid);
2172 * If enabled, put device in promiscuous mode.
2173 * This allows IO forwarding mode to forward packets
2174 * to itself through 2 cross-connected ports of the
2178 rte_eth_promiscuous_enable(portid);
2179 /* initialize spinlock for each port */
2180 rte_spinlock_init(&(locks[portid]));
2183 check_all_ports_link_status(enabled_port_mask);
2185 if (empty_poll_on == true) {
2187 if (empty_poll_train) {
2188 policy.state = TRAINING;
2190 policy.state = MED_NORMAL;
2191 policy.med_base_edpi = ep_med_edpi;
2192 policy.hgh_base_edpi = ep_hgh_edpi;
2195 ret = rte_power_empty_poll_stat_init(&ep_params,
2199 rte_exit(EXIT_FAILURE, "empty poll init failed");
2203 /* launch per-lcore init on every lcore */
2204 if (empty_poll_on == false) {
2205 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
2207 empty_poll_stop = false;
2208 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2212 if (empty_poll_on == true)
2213 launch_timer(rte_lcore_id());
2215 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
2216 if (rte_eal_wait_lcore(lcore_id) < 0)
2221 rte_power_empty_poll_stat_free();