1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2018 Intel Corporation
11 #include <sys/queue.h>
19 #include <rte_common.h>
20 #include <rte_byteorder.h>
22 #include <rte_malloc.h>
23 #include <rte_memory.h>
24 #include <rte_memcpy.h>
26 #include <rte_launch.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>
47 #include <rte_metrics.h>
48 #include <rte_telemetry.h>
49 #include <rte_power_pmd_mgmt.h>
51 #include "perf_core.h"
54 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
56 #define MAX_PKT_BURST 32
58 #define MIN_ZERO_POLL_COUNT 10
61 #define TIMER_NUMBER_PER_SECOND 10
63 #define INTERVALS_PER_SECOND 100
65 #define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND)
66 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
68 #define APP_LOOKUP_EXACT_MATCH 0
69 #define APP_LOOKUP_LPM 1
70 #define DO_RFC_1812_CHECKS
72 #ifndef APP_LOOKUP_METHOD
73 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM
76 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
78 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
81 #error "APP_LOOKUP_METHOD set to incorrect value"
85 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
86 "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
87 #define IPv6_BYTES(addr) \
88 addr[0], addr[1], addr[2], addr[3], \
89 addr[4], addr[5], addr[6], addr[7], \
90 addr[8], addr[9], addr[10], addr[11],\
91 addr[12], addr[13],addr[14], addr[15]
94 #define MAX_JUMBO_PKT_LEN 9600
96 #define IPV6_ADDR_LEN 16
98 #define MEMPOOL_CACHE_SIZE 256
101 * This expression is used to calculate the number of mbufs needed depending on
102 * user input, taking into account memory for rx and tx hardware rings, cache
103 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
104 * NB_MBUF never goes below a minimum value of 8192.
107 #define NB_MBUF RTE_MAX ( \
108 (nb_ports*nb_rx_queue*nb_rxd + \
109 nb_ports*nb_lcores*MAX_PKT_BURST + \
110 nb_ports*n_tx_queue*nb_txd + \
111 nb_lcores*MEMPOOL_CACHE_SIZE), \
114 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
118 /* Configure how many packets ahead to prefetch, when reading packets */
119 #define PREFETCH_OFFSET 3
122 * Configurable number of RX/TX ring descriptors
124 #define RTE_TEST_RX_DESC_DEFAULT 1024
125 #define RTE_TEST_TX_DESC_DEFAULT 1024
128 * These two thresholds were decided on by running the training algorithm on
129 * a 2.5GHz Xeon. These defaults can be overridden by supplying non-zero values
130 * for the med_threshold and high_threshold parameters on the command line.
132 #define EMPTY_POLL_MED_THRESHOLD 350000UL
133 #define EMPTY_POLL_HGH_THRESHOLD 580000UL
135 #define NUM_TELSTATS RTE_DIM(telstats_strings)
137 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
138 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
140 /* ethernet addresses of ports */
141 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
143 /* ethernet addresses of ports */
144 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
146 /* mask of enabled ports */
147 static uint32_t enabled_port_mask = 0;
148 /* Ports set in promiscuous mode off by default. */
149 static int promiscuous_on = 0;
150 /* NUMA is enabled by default. */
151 static int numa_on = 1;
152 static bool empty_poll_stop;
153 static bool empty_poll_train;
154 volatile bool quit_signal;
155 static struct ep_params *ep_params;
156 static struct ep_policy policy;
157 static long ep_med_edpi, ep_hgh_edpi;
158 /* timer to update telemetry every 500ms */
159 static struct rte_timer telemetry_timer;
161 /* stats index returned by metrics lib */
164 struct telstats_name {
165 char name[RTE_ETH_XSTATS_NAME_SIZE];
168 /* telemetry stats to be reported */
169 const struct telstats_name telstats_strings[] = {
175 /* core busyness in percentage */
182 /* reference poll count to measure core busyness */
183 #define DEFAULT_COUNT 10000
185 * reference CYCLES to be used to
186 * measure core busyness based on poll count
188 #define MIN_CYCLES 1500000ULL
189 #define MAX_CYCLES 22000000ULL
192 #define TELEMETRY_INTERVALS_PER_SEC 2
194 static int parse_ptype; /**< Parse packet type using rx callback, and */
195 /**< disabled by default */
198 APP_MODE_DEFAULT = 0,
206 enum appmode app_mode;
208 static enum rte_power_pmd_mgmt_type pmgmt_type;
209 bool baseline_enabled;
211 enum freq_scale_hint_t
219 struct lcore_rx_queue {
222 enum freq_scale_hint_t freq_up_hint;
223 uint32_t zero_rx_packet_count;
225 } __rte_cache_aligned;
227 #define MAX_RX_QUEUE_PER_LCORE 16
228 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
229 #define MAX_RX_QUEUE_PER_PORT 128
231 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
234 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
235 static struct lcore_params lcore_params_array_default[] = {
247 struct lcore_params *lcore_params = lcore_params_array_default;
248 uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
250 static struct rte_eth_conf port_conf = {
252 .mq_mode = RTE_ETH_MQ_RX_RSS,
254 .offloads = RTE_ETH_RX_OFFLOAD_CHECKSUM,
259 .rss_hf = RTE_ETH_RSS_UDP,
263 .mq_mode = RTE_ETH_MQ_TX_NONE,
267 static uint32_t max_pkt_len;
269 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
272 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
275 #include <rte_hash_crc.h>
276 #define DEFAULT_HASH_FUNC rte_hash_crc
278 #include <rte_jhash.h>
279 #define DEFAULT_HASH_FUNC rte_jhash
291 uint8_t ip_dst[IPV6_ADDR_LEN];
292 uint8_t ip_src[IPV6_ADDR_LEN];
298 struct ipv4_l3fwd_route {
299 struct ipv4_5tuple key;
303 struct ipv6_l3fwd_route {
304 struct ipv6_5tuple key;
308 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
309 {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
310 {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
311 {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
312 {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
315 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
318 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
319 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
320 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
321 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
327 typedef struct rte_hash lookup_struct_t;
328 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
329 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
331 #define L3FWD_HASH_ENTRIES 1024
333 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
334 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
337 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
338 struct ipv4_l3fwd_route {
344 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
345 {RTE_IPV4(1,1,1,0), 24, 0},
346 {RTE_IPV4(2,1,1,0), 24, 1},
347 {RTE_IPV4(3,1,1,0), 24, 2},
348 {RTE_IPV4(4,1,1,0), 24, 3},
349 {RTE_IPV4(5,1,1,0), 24, 4},
350 {RTE_IPV4(6,1,1,0), 24, 5},
351 {RTE_IPV4(7,1,1,0), 24, 6},
352 {RTE_IPV4(8,1,1,0), 24, 7},
355 #define IPV4_L3FWD_LPM_MAX_RULES 1024
357 typedef struct rte_lpm lookup_struct_t;
358 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
363 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
365 uint16_t tx_port_id[RTE_MAX_ETHPORTS];
366 uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
367 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
368 lookup_struct_t * ipv4_lookup_struct;
369 lookup_struct_t * ipv6_lookup_struct;
370 } __rte_cache_aligned;
373 /* total sleep time in ms since last frequency scaling down */
375 /* number of long sleep recently */
376 uint32_t nb_long_sleep;
377 /* freq. scaling up trend */
379 /* total packet processed recently */
380 uint64_t nb_rx_processed;
381 /* total iterations looped recently */
382 uint64_t nb_iteration_looped;
384 * Represents empty and non empty polls
385 * of rte_eth_rx_burst();
386 * ep_nep[0] holds non empty polls
387 * i.e. 0 < nb_rx <= MAX_BURST
388 * ep_nep[1] holds empty polls.
393 * Represents full and empty+partial
394 * polls of rte_eth_rx_burst();
395 * ep_nep[0] holds empty+partial polls.
396 * i.e. 0 <= nb_rx < MAX_BURST
397 * ep_nep[1] holds full polls
398 * i.e. nb_rx == MAX_BURST
402 rte_spinlock_t telemetry_lock;
403 } __rte_cache_aligned;
405 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
406 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
407 static struct rte_timer power_timers[RTE_MAX_LCORE];
409 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
410 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
411 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
415 * These defaults are using the max frequency index (1), a medium index (9)
416 * and a typical low frequency index (14). These can be adjusted to use
417 * different indexes using the relevant command line parameters.
419 static uint8_t freq_tlb[] = {14, 9, 1};
421 static int is_done(void)
426 /* exit signal handler */
428 signal_exit_now(int sigtype)
431 if (sigtype == SIGINT)
436 /* Frequency scale down timer callback */
438 power_timer_cb(__rte_unused struct rte_timer *tim,
439 __rte_unused void *arg)
442 float sleep_time_ratio;
443 unsigned lcore_id = rte_lcore_id();
445 /* accumulate total execution time in us when callback is invoked */
446 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
447 (float)SCALING_PERIOD;
449 * check whether need to scale down frequency a step if it sleep a lot.
451 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
452 if (rte_power_freq_down)
453 rte_power_freq_down(lcore_id);
455 else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
456 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
458 * scale down a step if average packet per iteration less
461 if (rte_power_freq_down)
462 rte_power_freq_down(lcore_id);
466 * initialize another timer according to current frequency to ensure
467 * timer interval is relatively fixed.
469 hz = rte_get_timer_hz();
470 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
471 SINGLE, lcore_id, power_timer_cb, NULL);
473 stats[lcore_id].nb_rx_processed = 0;
474 stats[lcore_id].nb_iteration_looped = 0;
476 stats[lcore_id].sleep_time = 0;
479 /* Enqueue a single packet, and send burst if queue is filled */
481 send_single_packet(struct rte_mbuf *m, uint16_t port)
484 struct lcore_conf *qconf;
486 lcore_id = rte_lcore_id();
487 qconf = &lcore_conf[lcore_id];
489 rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
490 qconf->tx_buffer[port], m);
495 #ifdef DO_RFC_1812_CHECKS
497 is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len)
499 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
501 * 1. The packet length reported by the Link Layer must be large
502 * enough to hold the minimum length legal IP datagram (20 bytes).
504 if (link_len < sizeof(struct rte_ipv4_hdr))
507 /* 2. The IP checksum must be correct. */
508 /* if this is not checked in H/W, check it. */
509 if ((port_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_IPV4_CKSUM) == 0) {
510 uint16_t actual_cksum, expected_cksum;
511 actual_cksum = pkt->hdr_checksum;
512 pkt->hdr_checksum = 0;
513 expected_cksum = rte_ipv4_cksum(pkt);
514 if (actual_cksum != expected_cksum)
519 * 3. The IP version number must be 4. If the version number is not 4
520 * then the packet may be another version of IP, such as IPng or
523 if (((pkt->version_ihl) >> 4) != 4)
526 * 4. The IP header length field must be large enough to hold the
527 * minimum length legal IP datagram (20 bytes = 5 words).
529 if ((pkt->version_ihl & 0xf) < 5)
533 * 5. The IP total length field must be large enough to hold the IP
534 * datagram header, whose length is specified in the IP header length
537 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
544 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
546 print_ipv4_key(struct ipv4_5tuple key)
548 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
549 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
550 key.port_dst, key.port_src, key.proto);
553 print_ipv6_key(struct ipv6_5tuple key)
555 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
556 "port dst = %d, port src = %d, proto = %d\n",
557 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
558 key.port_dst, key.port_src, key.proto);
561 static inline uint16_t
562 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
563 lookup_struct_t * ipv4_l3fwd_lookup_struct)
565 struct ipv4_5tuple key;
566 struct rte_tcp_hdr *tcp;
567 struct rte_udp_hdr *udp;
570 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
571 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
572 key.proto = ipv4_hdr->next_proto_id;
574 switch (ipv4_hdr->next_proto_id) {
576 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
577 sizeof(struct rte_ipv4_hdr));
578 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
579 key.port_src = rte_be_to_cpu_16(tcp->src_port);
583 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
584 sizeof(struct rte_ipv4_hdr));
585 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
586 key.port_src = rte_be_to_cpu_16(udp->src_port);
595 /* Find destination port */
596 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
597 return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
600 static inline uint16_t
601 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
602 lookup_struct_t *ipv6_l3fwd_lookup_struct)
604 struct ipv6_5tuple key;
605 struct rte_tcp_hdr *tcp;
606 struct rte_udp_hdr *udp;
609 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
610 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
612 key.proto = ipv6_hdr->proto;
614 switch (ipv6_hdr->proto) {
616 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
617 sizeof(struct rte_ipv6_hdr));
618 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
619 key.port_src = rte_be_to_cpu_16(tcp->src_port);
623 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
624 sizeof(struct rte_ipv6_hdr));
625 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
626 key.port_src = rte_be_to_cpu_16(udp->src_port);
635 /* Find destination port */
636 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
637 return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
641 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
642 static inline uint16_t
643 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
644 lookup_struct_t *ipv4_l3fwd_lookup_struct)
648 return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
649 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
655 parse_ptype_one(struct rte_mbuf *m)
657 struct rte_ether_hdr *eth_hdr;
658 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
661 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
662 ether_type = eth_hdr->ether_type;
663 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
664 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
665 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
666 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
668 m->packet_type = packet_type;
672 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
673 struct rte_mbuf *pkts[], uint16_t nb_pkts,
674 uint16_t max_pkts __rte_unused,
675 void *user_param __rte_unused)
679 for (i = 0; i < nb_pkts; ++i)
680 parse_ptype_one(pkts[i]);
686 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
688 printf("Port %d: softly parse packet type info\n", portid);
689 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
692 printf("Failed to add rx callback: port=%d\n", portid);
697 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
698 struct lcore_conf *qconf)
700 struct rte_ether_hdr *eth_hdr;
701 struct rte_ipv4_hdr *ipv4_hdr;
705 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
707 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
708 /* Handle IPv4 headers.*/
710 rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
711 sizeof(struct rte_ether_hdr));
713 #ifdef DO_RFC_1812_CHECKS
714 /* Check to make sure the packet is valid (RFC1812) */
715 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
721 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
722 qconf->ipv4_lookup_struct);
723 if (dst_port >= RTE_MAX_ETHPORTS ||
724 (enabled_port_mask & 1 << dst_port) == 0)
727 /* 02:00:00:00:00:xx */
728 d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0];
729 *((uint64_t *)d_addr_bytes) =
730 0x000000000002 + ((uint64_t)dst_port << 40);
732 #ifdef DO_RFC_1812_CHECKS
733 /* Update time to live and header checksum */
734 --(ipv4_hdr->time_to_live);
735 ++(ipv4_hdr->hdr_checksum);
739 rte_ether_addr_copy(&ports_eth_addr[dst_port],
742 send_single_packet(m, dst_port);
743 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
744 /* Handle IPv6 headers.*/
745 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
746 struct rte_ipv6_hdr *ipv6_hdr;
749 rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
750 sizeof(struct rte_ether_hdr));
752 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
753 qconf->ipv6_lookup_struct);
755 if (dst_port >= RTE_MAX_ETHPORTS ||
756 (enabled_port_mask & 1 << dst_port) == 0)
759 /* 02:00:00:00:00:xx */
760 d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0];
761 *((uint64_t *)d_addr_bytes) =
762 0x000000000002 + ((uint64_t)dst_port << 40);
765 rte_ether_addr_copy(&ports_eth_addr[dst_port],
768 send_single_packet(m, dst_port);
770 /* We don't currently handle IPv6 packets in LPM mode. */
778 #define MINIMUM_SLEEP_TIME 1
779 #define SUSPEND_THRESHOLD 300
781 static inline uint32_t
782 power_idle_heuristic(uint32_t zero_rx_packet_count)
784 /* If zero count is less than 100, sleep 1us */
785 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
786 return MINIMUM_SLEEP_TIME;
787 /* If zero count is less than 1000, sleep 100 us which is the
788 minimum latency switching from C3/C6 to C0
791 return SUSPEND_THRESHOLD;
794 static inline enum freq_scale_hint_t
795 power_freq_scaleup_heuristic(unsigned lcore_id,
799 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
801 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
804 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
805 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
806 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
807 #define FREQ_UP_TREND1_ACC 1
808 #define FREQ_UP_TREND2_ACC 100
809 #define FREQ_UP_THRESHOLD 10000
811 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
812 stats[lcore_id].trend = 0;
814 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
815 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
816 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
817 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
819 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
820 stats[lcore_id].trend = 0;
828 * force polling thread sleep until one-shot rx interrupt triggers
837 sleep_until_rx_interrupt(int num, int lcore)
840 * we want to track when we are woken up by traffic so that we can go
841 * back to sleep again without log spamming. Avoid cache line sharing
842 * to prevent threads stepping on each others' toes.
846 } __rte_cache_aligned status[RTE_MAX_LCORE];
847 struct rte_epoll_event event[num];
853 if (status[lcore].wakeup) {
854 RTE_LOG(INFO, L3FWD_POWER,
855 "lcore %u sleeps until interrupt triggers\n",
859 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
860 for (i = 0; i < n; i++) {
861 data = event[i].epdata.data;
862 port_id = ((uintptr_t)data) >> CHAR_BIT;
863 queue_id = ((uintptr_t)data) &
864 RTE_LEN2MASK(CHAR_BIT, uint8_t);
865 RTE_LOG(INFO, L3FWD_POWER,
866 "lcore %u is waked up from rx interrupt on"
867 " port %d queue %d\n",
868 rte_lcore_id(), port_id, queue_id);
870 status[lcore].wakeup = n != 0;
875 static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
878 struct lcore_rx_queue *rx_queue;
882 for (i = 0; i < qconf->n_rx_queue; ++i) {
883 rx_queue = &(qconf->rx_queue_list[i]);
884 port_id = rx_queue->port_id;
885 queue_id = rx_queue->queue_id;
887 rte_spinlock_lock(&(locks[port_id]));
889 rte_eth_dev_rx_intr_enable(port_id, queue_id);
891 rte_eth_dev_rx_intr_disable(port_id, queue_id);
892 rte_spinlock_unlock(&(locks[port_id]));
896 static int event_register(struct lcore_conf *qconf)
898 struct lcore_rx_queue *rx_queue;
905 for (i = 0; i < qconf->n_rx_queue; ++i) {
906 rx_queue = &(qconf->rx_queue_list[i]);
907 portid = rx_queue->port_id;
908 queueid = rx_queue->queue_id;
909 data = portid << CHAR_BIT | queueid;
911 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
912 RTE_EPOLL_PER_THREAD,
914 (void *)((uintptr_t)data));
922 /* Main processing loop. 8< */
923 static int main_intr_loop(__rte_unused void *dummy)
925 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
926 unsigned int lcore_id;
927 uint64_t prev_tsc, diff_tsc, cur_tsc;
931 struct lcore_conf *qconf;
932 struct lcore_rx_queue *rx_queue;
933 uint32_t lcore_rx_idle_count = 0;
934 uint32_t lcore_idle_hint = 0;
937 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
938 US_PER_S * BURST_TX_DRAIN_US;
942 lcore_id = rte_lcore_id();
943 qconf = &lcore_conf[lcore_id];
945 if (qconf->n_rx_queue == 0) {
946 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
951 RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
954 for (i = 0; i < qconf->n_rx_queue; i++) {
955 portid = qconf->rx_queue_list[i].port_id;
956 queueid = qconf->rx_queue_list[i].queue_id;
957 RTE_LOG(INFO, L3FWD_POWER,
958 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
959 lcore_id, portid, queueid);
962 /* add into event wait list */
963 if (event_register(qconf) == 0)
966 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
969 stats[lcore_id].nb_iteration_looped++;
971 cur_tsc = rte_rdtsc();
974 * TX burst queue drain
976 diff_tsc = cur_tsc - prev_tsc;
977 if (unlikely(diff_tsc > drain_tsc)) {
978 for (i = 0; i < qconf->n_tx_port; ++i) {
979 portid = qconf->tx_port_id[i];
980 rte_eth_tx_buffer_flush(portid,
981 qconf->tx_queue_id[portid],
982 qconf->tx_buffer[portid]);
989 * Read packet from RX queues
991 lcore_rx_idle_count = 0;
992 for (i = 0; i < qconf->n_rx_queue; ++i) {
993 rx_queue = &(qconf->rx_queue_list[i]);
994 rx_queue->idle_hint = 0;
995 portid = rx_queue->port_id;
996 queueid = rx_queue->queue_id;
998 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1001 stats[lcore_id].nb_rx_processed += nb_rx;
1002 if (unlikely(nb_rx == 0)) {
1004 * no packet received from rx queue, try to
1005 * sleep for a while forcing CPU enter deeper
1008 rx_queue->zero_rx_packet_count++;
1010 if (rx_queue->zero_rx_packet_count <=
1011 MIN_ZERO_POLL_COUNT)
1014 rx_queue->idle_hint = power_idle_heuristic(
1015 rx_queue->zero_rx_packet_count);
1016 lcore_rx_idle_count++;
1018 rx_queue->zero_rx_packet_count = 0;
1021 /* Prefetch first packets */
1022 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1023 rte_prefetch0(rte_pktmbuf_mtod(
1024 pkts_burst[j], void *));
1027 /* Prefetch and forward already prefetched packets */
1028 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1029 rte_prefetch0(rte_pktmbuf_mtod(
1030 pkts_burst[j + PREFETCH_OFFSET],
1032 l3fwd_simple_forward(
1033 pkts_burst[j], portid, qconf);
1036 /* Forward remaining prefetched packets */
1037 for (; j < nb_rx; j++) {
1038 l3fwd_simple_forward(
1039 pkts_burst[j], portid, qconf);
1043 if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
1045 * All Rx queues empty in recent consecutive polls,
1046 * sleep in a conservative manner, meaning sleep as
1050 lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
1051 i < qconf->n_rx_queue; ++i) {
1052 rx_queue = &(qconf->rx_queue_list[i]);
1053 if (rx_queue->idle_hint < lcore_idle_hint)
1054 lcore_idle_hint = rx_queue->idle_hint;
1057 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1059 * execute "pause" instruction to avoid context
1060 * switch which generally take hundred of
1061 * microseconds for short sleep.
1063 rte_delay_us(lcore_idle_hint);
1065 /* suspend until rx interrupt triggers */
1067 turn_on_off_intr(qconf, 1);
1068 sleep_until_rx_interrupt(
1071 turn_on_off_intr(qconf, 0);
1073 * start receiving packets immediately
1075 if (likely(!is_done()))
1079 stats[lcore_id].sleep_time += lcore_idle_hint;
1085 /* >8 End of main processing loop. */
1087 /* main processing loop */
1089 main_telemetry_loop(__rte_unused void *dummy)
1091 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1092 unsigned int lcore_id;
1093 uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
1097 struct lcore_conf *qconf;
1098 struct lcore_rx_queue *rx_queue;
1099 uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
1100 uint64_t poll_count;
1103 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1104 US_PER_S * BURST_TX_DRAIN_US;
1110 lcore_id = rte_lcore_id();
1111 qconf = &lcore_conf[lcore_id];
1113 if (qconf->n_rx_queue == 0) {
1114 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1119 RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
1122 for (i = 0; i < qconf->n_rx_queue; i++) {
1123 portid = qconf->rx_queue_list[i].port_id;
1124 queueid = qconf->rx_queue_list[i].queue_id;
1125 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1126 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1129 while (!is_done()) {
1131 cur_tsc = rte_rdtsc();
1133 * TX burst queue drain
1135 diff_tsc = cur_tsc - prev_tsc;
1136 if (unlikely(diff_tsc > drain_tsc)) {
1137 for (i = 0; i < qconf->n_tx_port; ++i) {
1138 portid = qconf->tx_port_id[i];
1139 rte_eth_tx_buffer_flush(portid,
1140 qconf->tx_queue_id[portid],
1141 qconf->tx_buffer[portid]);
1147 * Read packet from RX queues
1149 for (i = 0; i < qconf->n_rx_queue; ++i) {
1150 rx_queue = &(qconf->rx_queue_list[i]);
1151 portid = rx_queue->port_id;
1152 queueid = rx_queue->queue_id;
1154 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1156 ep_nep[nb_rx == 0]++;
1157 fp_nfp[nb_rx == MAX_PKT_BURST]++;
1159 if (unlikely(nb_rx == 0))
1162 /* Prefetch first packets */
1163 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1164 rte_prefetch0(rte_pktmbuf_mtod(
1165 pkts_burst[j], void *));
1168 /* Prefetch and forward already prefetched packets */
1169 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1170 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1171 j + PREFETCH_OFFSET], void *));
1172 l3fwd_simple_forward(pkts_burst[j], portid,
1176 /* Forward remaining prefetched packets */
1177 for (; j < nb_rx; j++) {
1178 l3fwd_simple_forward(pkts_burst[j], portid,
1182 if (unlikely(poll_count >= DEFAULT_COUNT)) {
1183 diff_tsc = cur_tsc - prev_tel_tsc;
1184 if (diff_tsc >= MAX_CYCLES) {
1186 } else if (diff_tsc > MIN_CYCLES &&
1187 diff_tsc < MAX_CYCLES) {
1188 br = (diff_tsc * 100) / MAX_CYCLES;
1193 prev_tel_tsc = cur_tsc;
1194 /* update stats for telemetry */
1195 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
1196 stats[lcore_id].ep_nep[0] = ep_nep[0];
1197 stats[lcore_id].ep_nep[1] = ep_nep[1];
1198 stats[lcore_id].fp_nfp[0] = fp_nfp[0];
1199 stats[lcore_id].fp_nfp[1] = fp_nfp[1];
1200 stats[lcore_id].br = br;
1201 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
1207 /* main processing loop */
1209 main_empty_poll_loop(__rte_unused void *dummy)
1211 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1212 unsigned int lcore_id;
1213 uint64_t prev_tsc, diff_tsc, cur_tsc;
1217 struct lcore_conf *qconf;
1218 struct lcore_rx_queue *rx_queue;
1220 const uint64_t drain_tsc =
1221 (rte_get_tsc_hz() + US_PER_S - 1) /
1222 US_PER_S * BURST_TX_DRAIN_US;
1226 lcore_id = rte_lcore_id();
1227 qconf = &lcore_conf[lcore_id];
1229 if (qconf->n_rx_queue == 0) {
1230 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1235 for (i = 0; i < qconf->n_rx_queue; i++) {
1236 portid = qconf->rx_queue_list[i].port_id;
1237 queueid = qconf->rx_queue_list[i].queue_id;
1238 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1239 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1242 while (!is_done()) {
1243 stats[lcore_id].nb_iteration_looped++;
1245 cur_tsc = rte_rdtsc();
1247 * TX burst queue drain
1249 diff_tsc = cur_tsc - prev_tsc;
1250 if (unlikely(diff_tsc > drain_tsc)) {
1251 for (i = 0; i < qconf->n_tx_port; ++i) {
1252 portid = qconf->tx_port_id[i];
1253 rte_eth_tx_buffer_flush(portid,
1254 qconf->tx_queue_id[portid],
1255 qconf->tx_buffer[portid]);
1261 * Read packet from RX queues
1263 for (i = 0; i < qconf->n_rx_queue; ++i) {
1264 rx_queue = &(qconf->rx_queue_list[i]);
1265 rx_queue->idle_hint = 0;
1266 portid = rx_queue->port_id;
1267 queueid = rx_queue->queue_id;
1269 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1272 stats[lcore_id].nb_rx_processed += nb_rx;
1276 rte_power_empty_poll_stat_update(lcore_id);
1280 rte_power_poll_stat_update(lcore_id, nb_rx);
1284 /* Prefetch first packets */
1285 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1286 rte_prefetch0(rte_pktmbuf_mtod(
1287 pkts_burst[j], void *));
1290 /* Prefetch and forward already prefetched packets */
1291 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1292 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1293 j + PREFETCH_OFFSET],
1295 l3fwd_simple_forward(pkts_burst[j], portid,
1299 /* Forward remaining prefetched packets */
1300 for (; j < nb_rx; j++) {
1301 l3fwd_simple_forward(pkts_burst[j], portid,
1311 /* main processing loop */
1313 main_legacy_loop(__rte_unused void *dummy)
1315 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1317 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
1318 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
1322 struct lcore_conf *qconf;
1323 struct lcore_rx_queue *rx_queue;
1324 enum freq_scale_hint_t lcore_scaleup_hint;
1325 uint32_t lcore_rx_idle_count = 0;
1326 uint32_t lcore_idle_hint = 0;
1329 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
1332 hz = rte_get_timer_hz();
1333 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1335 lcore_id = rte_lcore_id();
1336 qconf = &lcore_conf[lcore_id];
1338 if (qconf->n_rx_queue == 0) {
1339 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1343 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1345 for (i = 0; i < qconf->n_rx_queue; i++) {
1346 portid = qconf->rx_queue_list[i].port_id;
1347 queueid = qconf->rx_queue_list[i].queue_id;
1348 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1349 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1352 /* add into event wait list */
1353 if (event_register(qconf) == 0)
1356 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1358 while (!is_done()) {
1359 stats[lcore_id].nb_iteration_looped++;
1361 cur_tsc = rte_rdtsc();
1362 cur_tsc_power = cur_tsc;
1365 * TX burst queue drain
1367 diff_tsc = cur_tsc - prev_tsc;
1368 if (unlikely(diff_tsc > drain_tsc)) {
1369 for (i = 0; i < qconf->n_tx_port; ++i) {
1370 portid = qconf->tx_port_id[i];
1371 rte_eth_tx_buffer_flush(portid,
1372 qconf->tx_queue_id[portid],
1373 qconf->tx_buffer[portid]);
1378 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1379 if (diff_tsc_power > tim_res_tsc) {
1381 prev_tsc_power = cur_tsc_power;
1386 * Read packet from RX queues
1388 lcore_scaleup_hint = FREQ_CURRENT;
1389 lcore_rx_idle_count = 0;
1390 for (i = 0; i < qconf->n_rx_queue; ++i) {
1391 rx_queue = &(qconf->rx_queue_list[i]);
1392 rx_queue->idle_hint = 0;
1393 portid = rx_queue->port_id;
1394 queueid = rx_queue->queue_id;
1396 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1399 stats[lcore_id].nb_rx_processed += nb_rx;
1400 if (unlikely(nb_rx == 0)) {
1402 * no packet received from rx queue, try to
1403 * sleep for a while forcing CPU enter deeper
1406 rx_queue->zero_rx_packet_count++;
1408 if (rx_queue->zero_rx_packet_count <=
1409 MIN_ZERO_POLL_COUNT)
1412 rx_queue->idle_hint = power_idle_heuristic(\
1413 rx_queue->zero_rx_packet_count);
1414 lcore_rx_idle_count++;
1416 rx_queue->zero_rx_packet_count = 0;
1419 * do not scale up frequency immediately as
1420 * user to kernel space communication is costly
1421 * which might impact packet I/O for received
1424 rx_queue->freq_up_hint =
1425 power_freq_scaleup_heuristic(lcore_id,
1429 /* Prefetch first packets */
1430 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1431 rte_prefetch0(rte_pktmbuf_mtod(
1432 pkts_burst[j], void *));
1435 /* Prefetch and forward already prefetched packets */
1436 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1437 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1438 j + PREFETCH_OFFSET], void *));
1439 l3fwd_simple_forward(pkts_burst[j], portid,
1443 /* Forward remaining prefetched packets */
1444 for (; j < nb_rx; j++) {
1445 l3fwd_simple_forward(pkts_burst[j], portid,
1450 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1451 for (i = 1, lcore_scaleup_hint =
1452 qconf->rx_queue_list[0].freq_up_hint;
1453 i < qconf->n_rx_queue; ++i) {
1454 rx_queue = &(qconf->rx_queue_list[i]);
1455 if (rx_queue->freq_up_hint >
1457 lcore_scaleup_hint =
1458 rx_queue->freq_up_hint;
1461 if (lcore_scaleup_hint == FREQ_HIGHEST) {
1462 if (rte_power_freq_max)
1463 rte_power_freq_max(lcore_id);
1464 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1465 if (rte_power_freq_up)
1466 rte_power_freq_up(lcore_id);
1470 * All Rx queues empty in recent consecutive polls,
1471 * sleep in a conservative manner, meaning sleep as
1474 for (i = 1, lcore_idle_hint =
1475 qconf->rx_queue_list[0].idle_hint;
1476 i < qconf->n_rx_queue; ++i) {
1477 rx_queue = &(qconf->rx_queue_list[i]);
1478 if (rx_queue->idle_hint < lcore_idle_hint)
1479 lcore_idle_hint = rx_queue->idle_hint;
1482 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1484 * execute "pause" instruction to avoid context
1485 * switch which generally take hundred of
1486 * microseconds for short sleep.
1488 rte_delay_us(lcore_idle_hint);
1490 /* suspend until rx interrupt triggers */
1492 turn_on_off_intr(qconf, 1);
1493 sleep_until_rx_interrupt(
1496 turn_on_off_intr(qconf, 0);
1498 * start receiving packets immediately
1500 if (likely(!is_done()))
1504 stats[lcore_id].sleep_time += lcore_idle_hint;
1512 check_lcore_params(void)
1514 uint8_t queue, lcore;
1518 for (i = 0; i < nb_lcore_params; ++i) {
1519 queue = lcore_params[i].queue_id;
1520 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1521 printf("invalid queue number: %hhu\n", queue);
1524 lcore = lcore_params[i].lcore_id;
1525 if (!rte_lcore_is_enabled(lcore)) {
1526 printf("error: lcore %hhu is not enabled in lcore "
1530 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1532 printf("warning: lcore %hhu is on socket %d with numa "
1533 "off\n", lcore, socketid);
1535 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
1536 printf("cannot enable main core %d in config for telemetry mode\n",
1545 check_port_config(void)
1550 for (i = 0; i < nb_lcore_params; ++i) {
1551 portid = lcore_params[i].port_id;
1552 if ((enabled_port_mask & (1 << portid)) == 0) {
1553 printf("port %u is not enabled in port mask\n",
1557 if (!rte_eth_dev_is_valid_port(portid)) {
1558 printf("port %u is not present on the board\n",
1567 get_port_n_rx_queues(const uint16_t port)
1572 for (i = 0; i < nb_lcore_params; ++i) {
1573 if (lcore_params[i].port_id == port &&
1574 lcore_params[i].queue_id > queue)
1575 queue = lcore_params[i].queue_id;
1577 return (uint8_t)(++queue);
1581 init_lcore_rx_queues(void)
1583 uint16_t i, nb_rx_queue;
1586 for (i = 0; i < nb_lcore_params; ++i) {
1587 lcore = lcore_params[i].lcore_id;
1588 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1589 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1590 printf("error: too many queues (%u) for lcore: %u\n",
1591 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1594 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1595 lcore_params[i].port_id;
1596 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1597 lcore_params[i].queue_id;
1598 lcore_conf[lcore].n_rx_queue++;
1606 print_usage(const char *prgname)
1608 printf ("%s [EAL options] -- -p PORTMASK -P"
1609 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1610 " [--high-perf-cores CORELIST"
1611 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1612 " [--max-pkt-len PKTLEN]\n"
1613 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1614 " -P: enable promiscuous mode\n"
1615 " --config (port,queue,lcore): rx queues configuration\n"
1616 " --high-perf-cores CORELIST: list of high performance cores\n"
1617 " --perf-config: similar as config, cores specified as indices"
1618 " for bins containing high or regular performance cores\n"
1619 " --no-numa: optional, disable numa awareness\n"
1620 " --max-pkt-len PKTLEN: maximum packet length in decimal (64-9600)\n"
1621 " --parse-ptype: parse packet type by software\n"
1622 " --legacy: use legacy interrupt-based scaling\n"
1623 " --empty-poll: enable empty poll detection"
1624 " follow (training_flag, high_threshold, med_threshold)\n"
1625 " --telemetry: enable telemetry mode, to update"
1626 " empty polls, full polls, and core busyness to telemetry\n"
1627 " --interrupt-only: enable interrupt-only mode\n"
1628 " --pmd-mgmt MODE: enable PMD power management mode. "
1629 "Currently supported modes: baseline, monitor, pause, scale\n",
1633 static int parse_max_pkt_len(const char *pktlen)
1638 /* parse decimal string */
1639 len = strtoul(pktlen, &end, 10);
1640 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1650 parse_portmask(const char *portmask)
1655 /* parse hexadecimal string */
1656 pm = strtoul(portmask, &end, 16);
1657 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1664 parse_config(const char *q_arg)
1667 const char *p, *p0 = q_arg;
1675 unsigned long int_fld[_NUM_FLD];
1676 char *str_fld[_NUM_FLD];
1680 nb_lcore_params = 0;
1682 while ((p = strchr(p0,'(')) != NULL) {
1684 if((p0 = strchr(p,')')) == NULL)
1688 if(size >= sizeof(s))
1691 snprintf(s, sizeof(s), "%.*s", size, p);
1692 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1695 for (i = 0; i < _NUM_FLD; i++){
1697 int_fld[i] = strtoul(str_fld[i], &end, 0);
1698 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1702 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1703 printf("exceeded max number of lcore params: %hu\n",
1707 lcore_params_array[nb_lcore_params].port_id =
1708 (uint8_t)int_fld[FLD_PORT];
1709 lcore_params_array[nb_lcore_params].queue_id =
1710 (uint8_t)int_fld[FLD_QUEUE];
1711 lcore_params_array[nb_lcore_params].lcore_id =
1712 (uint8_t)int_fld[FLD_LCORE];
1715 lcore_params = lcore_params_array;
1721 parse_pmd_mgmt_config(const char *name)
1723 #define PMD_MGMT_MONITOR "monitor"
1724 #define PMD_MGMT_PAUSE "pause"
1725 #define PMD_MGMT_SCALE "scale"
1726 #define PMD_MGMT_BASELINE "baseline"
1728 if (strncmp(PMD_MGMT_MONITOR, name, sizeof(PMD_MGMT_MONITOR)) == 0) {
1729 pmgmt_type = RTE_POWER_MGMT_TYPE_MONITOR;
1733 if (strncmp(PMD_MGMT_PAUSE, name, sizeof(PMD_MGMT_PAUSE)) == 0) {
1734 pmgmt_type = RTE_POWER_MGMT_TYPE_PAUSE;
1738 if (strncmp(PMD_MGMT_SCALE, name, sizeof(PMD_MGMT_SCALE)) == 0) {
1739 pmgmt_type = RTE_POWER_MGMT_TYPE_SCALE;
1742 if (strncmp(PMD_MGMT_BASELINE, name, sizeof(PMD_MGMT_BASELINE)) == 0) {
1743 baseline_enabled = true;
1746 /* unknown PMD power management mode */
1751 parse_ep_config(const char *q_arg)
1754 const char *p = q_arg;
1764 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1765 ep_hgh_edpi = EMPTY_POLL_HGH_THRESHOLD;
1767 strlcpy(s, p, sizeof(s));
1769 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1771 empty_poll_train = false;
1778 training_flag = strtoul(str_fld[0], &end, 0);
1779 med_edpi = strtoul(str_fld[1], &end, 0);
1780 hgh_edpi = strtoul(str_fld[2], &end, 0);
1782 if (training_flag == 1)
1783 empty_poll_train = true;
1786 ep_med_edpi = med_edpi;
1789 ep_hgh_edpi = hgh_edpi;
1799 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1800 #define CMD_LINE_OPT_LEGACY "legacy"
1801 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
1802 #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
1803 #define CMD_LINE_OPT_TELEMETRY "telemetry"
1804 #define CMD_LINE_OPT_PMD_MGMT "pmd-mgmt"
1805 #define CMD_LINE_OPT_MAX_PKT_LEN "max-pkt-len"
1807 /* Parse the argument given in the command line of the application */
1809 parse_args(int argc, char **argv)
1815 char *prgname = argv[0];
1816 static struct option lgopts[] = {
1817 {"config", 1, 0, 0},
1818 {"perf-config", 1, 0, 0},
1819 {"high-perf-cores", 1, 0, 0},
1820 {"no-numa", 0, 0, 0},
1821 {CMD_LINE_OPT_MAX_PKT_LEN, 1, 0, 0},
1822 {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
1823 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1824 {CMD_LINE_OPT_LEGACY, 0, 0, 0},
1825 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
1826 {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
1827 {CMD_LINE_OPT_PMD_MGMT, 1, 0, 0},
1833 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1834 lgopts, &option_index)) != EOF) {
1839 enabled_port_mask = parse_portmask(optarg);
1840 if (enabled_port_mask == 0) {
1841 printf("invalid portmask\n");
1842 print_usage(prgname);
1847 printf("Promiscuous mode selected\n");
1851 limit = parse_max_pkt_len(optarg);
1852 freq_tlb[LOW] = limit;
1855 limit = parse_max_pkt_len(optarg);
1856 freq_tlb[MED] = limit;
1859 limit = parse_max_pkt_len(optarg);
1860 freq_tlb[HGH] = limit;
1864 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1865 ret = parse_config(optarg);
1867 printf("invalid config\n");
1868 print_usage(prgname);
1873 if (!strncmp(lgopts[option_index].name,
1874 "perf-config", 11)) {
1875 ret = parse_perf_config(optarg);
1877 printf("invalid perf-config\n");
1878 print_usage(prgname);
1883 if (!strncmp(lgopts[option_index].name,
1884 "high-perf-cores", 15)) {
1885 ret = parse_perf_core_list(optarg);
1887 printf("invalid high-perf-cores\n");
1888 print_usage(prgname);
1893 if (!strncmp(lgopts[option_index].name,
1895 printf("numa is disabled \n");
1899 if (!strncmp(lgopts[option_index].name,
1900 CMD_LINE_OPT_LEGACY,
1901 sizeof(CMD_LINE_OPT_LEGACY))) {
1902 if (app_mode != APP_MODE_DEFAULT) {
1903 printf(" legacy mode is mutually exclusive with other modes\n");
1906 app_mode = APP_MODE_LEGACY;
1907 printf("legacy mode is enabled\n");
1910 if (!strncmp(lgopts[option_index].name,
1911 CMD_LINE_OPT_EMPTY_POLL, 10)) {
1912 if (app_mode != APP_MODE_DEFAULT) {
1913 printf(" empty-poll mode is mutually exclusive with other modes\n");
1916 app_mode = APP_MODE_EMPTY_POLL;
1917 ret = parse_ep_config(optarg);
1920 printf("invalid empty poll config\n");
1921 print_usage(prgname);
1924 printf("empty-poll is enabled\n");
1927 if (!strncmp(lgopts[option_index].name,
1928 CMD_LINE_OPT_TELEMETRY,
1929 sizeof(CMD_LINE_OPT_TELEMETRY))) {
1930 if (app_mode != APP_MODE_DEFAULT) {
1931 printf(" telemetry mode is mutually exclusive with other modes\n");
1934 app_mode = APP_MODE_TELEMETRY;
1935 printf("telemetry mode is enabled\n");
1938 if (!strncmp(lgopts[option_index].name,
1939 CMD_LINE_OPT_PMD_MGMT,
1940 sizeof(CMD_LINE_OPT_PMD_MGMT))) {
1941 if (app_mode != APP_MODE_DEFAULT) {
1942 printf(" power mgmt mode is mutually exclusive with other modes\n");
1945 if (parse_pmd_mgmt_config(optarg) < 0) {
1946 printf(" Invalid PMD power management mode: %s\n",
1950 app_mode = APP_MODE_PMD_MGMT;
1951 printf("PMD power mgmt mode is enabled\n");
1953 if (!strncmp(lgopts[option_index].name,
1954 CMD_LINE_OPT_INTERRUPT_ONLY,
1955 sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
1956 if (app_mode != APP_MODE_DEFAULT) {
1957 printf(" interrupt-only mode is mutually exclusive with other modes\n");
1960 app_mode = APP_MODE_INTERRUPT;
1961 printf("interrupt-only mode is enabled\n");
1964 if (!strncmp(lgopts[option_index].name,
1965 CMD_LINE_OPT_MAX_PKT_LEN,
1966 sizeof(CMD_LINE_OPT_MAX_PKT_LEN))) {
1967 printf("Custom frame size is configured\n");
1968 max_pkt_len = parse_max_pkt_len(optarg);
1971 if (!strncmp(lgopts[option_index].name,
1972 CMD_LINE_OPT_PARSE_PTYPE,
1973 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1974 printf("soft parse-ptype is enabled\n");
1981 print_usage(prgname);
1987 argv[optind-1] = prgname;
1990 optind = 1; /* reset getopt lib */
1995 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
1997 char buf[RTE_ETHER_ADDR_FMT_SIZE];
1998 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
1999 printf("%s%s", name, buf);
2002 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2004 setup_hash(int socketid)
2006 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
2008 .entries = L3FWD_HASH_ENTRIES,
2009 .key_len = sizeof(struct ipv4_5tuple),
2010 .hash_func = DEFAULT_HASH_FUNC,
2011 .hash_func_init_val = 0,
2014 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
2016 .entries = L3FWD_HASH_ENTRIES,
2017 .key_len = sizeof(struct ipv6_5tuple),
2018 .hash_func = DEFAULT_HASH_FUNC,
2019 .hash_func_init_val = 0,
2026 /* create ipv4 hash */
2027 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
2028 ipv4_l3fwd_hash_params.name = s;
2029 ipv4_l3fwd_hash_params.socket_id = socketid;
2030 ipv4_l3fwd_lookup_struct[socketid] =
2031 rte_hash_create(&ipv4_l3fwd_hash_params);
2032 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2033 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2034 "socket %d\n", socketid);
2036 /* create ipv6 hash */
2037 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
2038 ipv6_l3fwd_hash_params.name = s;
2039 ipv6_l3fwd_hash_params.socket_id = socketid;
2040 ipv6_l3fwd_lookup_struct[socketid] =
2041 rte_hash_create(&ipv6_l3fwd_hash_params);
2042 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
2043 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2044 "socket %d\n", socketid);
2047 /* populate the ipv4 hash */
2048 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2049 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
2050 (void *) &ipv4_l3fwd_route_array[i].key);
2052 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2053 "l3fwd hash on socket %d\n", i, socketid);
2055 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
2056 printf("Hash: Adding key\n");
2057 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
2060 /* populate the ipv6 hash */
2061 for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
2062 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
2063 (void *) &ipv6_l3fwd_route_array[i].key);
2065 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2066 "l3fwd hash on socket %d\n", i, socketid);
2068 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
2069 printf("Hash: Adding key\n");
2070 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
2075 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2077 setup_lpm(int socketid)
2083 /* create the LPM table */
2084 struct rte_lpm_config lpm_ipv4_config;
2086 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
2087 lpm_ipv4_config.number_tbl8s = 256;
2088 lpm_ipv4_config.flags = 0;
2090 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
2091 ipv4_l3fwd_lookup_struct[socketid] =
2092 rte_lpm_create(s, socketid, &lpm_ipv4_config);
2093 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2094 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
2095 " on socket %d\n", socketid);
2097 /* populate the LPM table */
2098 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2099 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
2100 ipv4_l3fwd_route_array[i].ip,
2101 ipv4_l3fwd_route_array[i].depth,
2102 ipv4_l3fwd_route_array[i].if_out);
2105 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
2106 "l3fwd LPM table on socket %d\n",
2110 printf("LPM: Adding route 0x%08x / %d (%d)\n",
2111 (unsigned)ipv4_l3fwd_route_array[i].ip,
2112 ipv4_l3fwd_route_array[i].depth,
2113 ipv4_l3fwd_route_array[i].if_out);
2119 init_mem(unsigned nb_mbuf)
2121 struct lcore_conf *qconf;
2126 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2127 if (rte_lcore_is_enabled(lcore_id) == 0)
2131 socketid = rte_lcore_to_socket_id(lcore_id);
2135 if (socketid >= NB_SOCKETS) {
2136 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
2137 "out of range %d\n", socketid,
2138 lcore_id, NB_SOCKETS);
2140 if (pktmbuf_pool[socketid] == NULL) {
2141 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
2142 pktmbuf_pool[socketid] =
2143 rte_pktmbuf_pool_create(s, nb_mbuf,
2144 MEMPOOL_CACHE_SIZE, 0,
2145 RTE_MBUF_DEFAULT_BUF_SIZE,
2147 if (pktmbuf_pool[socketid] == NULL)
2148 rte_exit(EXIT_FAILURE,
2149 "Cannot init mbuf pool on socket %d\n",
2152 printf("Allocated mbuf pool on socket %d\n",
2155 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2156 setup_lpm(socketid);
2158 setup_hash(socketid);
2161 qconf = &lcore_conf[lcore_id];
2162 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
2163 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2164 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
2170 /* Check the link status of all ports in up to 9s, and print them finally */
2172 check_all_ports_link_status(uint32_t port_mask)
2174 #define CHECK_INTERVAL 100 /* 100ms */
2175 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
2176 uint8_t count, all_ports_up, print_flag = 0;
2178 struct rte_eth_link link;
2180 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
2182 printf("\nChecking link status");
2184 for (count = 0; count <= MAX_CHECK_TIME; count++) {
2186 RTE_ETH_FOREACH_DEV(portid) {
2187 if ((port_mask & (1 << portid)) == 0)
2189 memset(&link, 0, sizeof(link));
2190 ret = rte_eth_link_get_nowait(portid, &link);
2193 if (print_flag == 1)
2194 printf("Port %u link get failed: %s\n",
2195 portid, rte_strerror(-ret));
2198 /* print link status if flag set */
2199 if (print_flag == 1) {
2200 rte_eth_link_to_str(link_status_text,
2201 sizeof(link_status_text), &link);
2202 printf("Port %d %s\n", portid,
2206 /* clear all_ports_up flag if any link down */
2207 if (link.link_status == RTE_ETH_LINK_DOWN) {
2212 /* after finally printing all link status, get out */
2213 if (print_flag == 1)
2216 if (all_ports_up == 0) {
2219 rte_delay_ms(CHECK_INTERVAL);
2222 /* set the print_flag if all ports up or timeout */
2223 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
2230 static int check_ptype(uint16_t portid)
2233 int ptype_l3_ipv4 = 0;
2234 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2235 int ptype_l3_ipv6 = 0;
2237 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
2239 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
2243 uint32_t ptypes[ret];
2245 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
2246 for (i = 0; i < ret; ++i) {
2247 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
2249 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2250 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
2255 if (ptype_l3_ipv4 == 0)
2256 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
2258 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2259 if (ptype_l3_ipv6 == 0)
2260 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
2263 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2265 #else /* APP_LOOKUP_EXACT_MATCH */
2266 if (ptype_l3_ipv4 && ptype_l3_ipv6)
2275 init_power_library(void)
2277 enum power_management_env env;
2278 unsigned int lcore_id;
2281 RTE_LCORE_FOREACH(lcore_id) {
2282 /* init power management library */
2283 ret = rte_power_init(lcore_id);
2286 "Library initialization failed on core %u\n",
2290 /* we're not supporting the VM channel mode */
2291 env = rte_power_get_env();
2292 if (env != PM_ENV_ACPI_CPUFREQ &&
2293 env != PM_ENV_PSTATE_CPUFREQ) {
2295 "Only ACPI and PSTATE mode are supported\n");
2303 deinit_power_library(void)
2305 unsigned int lcore_id;
2308 RTE_LCORE_FOREACH(lcore_id) {
2309 /* deinit power management library */
2310 ret = rte_power_exit(lcore_id);
2313 "Library deinitialization failed on core %u\n",
2322 get_current_stat_values(uint64_t *values)
2324 unsigned int lcore_id = rte_lcore_id();
2325 struct lcore_conf *qconf;
2326 uint64_t app_eps = 0, app_fps = 0, app_br = 0;
2329 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2330 qconf = &lcore_conf[lcore_id];
2331 if (qconf->n_rx_queue == 0)
2334 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
2335 app_eps += stats[lcore_id].ep_nep[1];
2336 app_fps += stats[lcore_id].fp_nfp[1];
2337 app_br += stats[lcore_id].br;
2338 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
2342 values[0] = app_eps/count;
2343 values[1] = app_fps/count;
2344 values[2] = app_br/count;
2346 memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
2351 update_telemetry(__rte_unused struct rte_timer *tim,
2352 __rte_unused void *arg)
2355 uint64_t values[NUM_TELSTATS] = {0};
2357 get_current_stat_values(values);
2358 ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
2359 values, RTE_DIM(values));
2361 RTE_LOG(WARNING, POWER, "failed to update metrics\n");
2365 handle_app_stats(const char *cmd __rte_unused,
2366 const char *params __rte_unused,
2367 struct rte_tel_data *d)
2369 uint64_t values[NUM_TELSTATS] = {0};
2372 rte_tel_data_start_dict(d);
2373 get_current_stat_values(values);
2374 for (i = 0; i < NUM_TELSTATS; i++)
2375 rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
2381 telemetry_setup_timer(void)
2383 int lcore_id = rte_lcore_id();
2384 uint64_t hz = rte_get_timer_hz();
2387 ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
2388 rte_timer_reset_sync(&telemetry_timer,
2396 empty_poll_setup_timer(void)
2398 int lcore_id = rte_lcore_id();
2399 uint64_t hz = rte_get_timer_hz();
2401 struct ep_params *ep_ptr = ep_params;
2403 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
2405 rte_timer_reset_sync(&ep_ptr->timer0,
2406 ep_ptr->interval_ticks,
2409 rte_empty_poll_detection,
2414 launch_timer(unsigned int lcore_id)
2416 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
2418 RTE_SET_USED(lcore_id);
2421 if (rte_get_main_lcore() != lcore_id) {
2422 rte_panic("timer on lcore:%d which is not main core:%d\n",
2424 rte_get_main_lcore());
2427 RTE_LOG(INFO, POWER, "Bring up the Timer\n");
2429 if (app_mode == APP_MODE_EMPTY_POLL)
2430 empty_poll_setup_timer();
2432 telemetry_setup_timer();
2434 cycles_10ms = rte_get_timer_hz() / 100;
2436 while (!is_done()) {
2437 cur_tsc = rte_rdtsc();
2438 diff_tsc = cur_tsc - prev_tsc;
2439 if (diff_tsc > cycles_10ms) {
2442 cycles_10ms = rte_get_timer_hz() / 100;
2446 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
2452 autodetect_mode(void)
2454 RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
2457 * Empty poll and telemetry modes have to be specifically requested to
2458 * be enabled, but we can auto-detect between interrupt mode with or
2459 * without frequency scaling. Both ACPI and pstate can be used.
2461 if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
2462 return APP_MODE_LEGACY;
2463 if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
2464 return APP_MODE_LEGACY;
2466 RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
2468 return APP_MODE_INTERRUPT;
2472 mode_to_str(enum appmode mode)
2475 case APP_MODE_LEGACY:
2477 case APP_MODE_EMPTY_POLL:
2478 return "empty poll";
2479 case APP_MODE_TELEMETRY:
2481 case APP_MODE_INTERRUPT:
2482 return "interrupt-only";
2483 case APP_MODE_PMD_MGMT:
2491 eth_dev_get_overhead_len(uint32_t max_rx_pktlen, uint16_t max_mtu)
2493 uint32_t overhead_len;
2495 if (max_mtu != UINT16_MAX && max_rx_pktlen > max_mtu)
2496 overhead_len = max_rx_pktlen - max_mtu;
2498 overhead_len = RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
2500 return overhead_len;
2504 config_port_max_pkt_len(struct rte_eth_conf *conf,
2505 struct rte_eth_dev_info *dev_info)
2507 uint32_t overhead_len;
2509 if (max_pkt_len == 0)
2512 if (max_pkt_len < RTE_ETHER_MIN_LEN || max_pkt_len > MAX_JUMBO_PKT_LEN)
2515 overhead_len = eth_dev_get_overhead_len(dev_info->max_rx_pktlen,
2517 conf->rxmode.mtu = max_pkt_len - overhead_len;
2519 if (conf->rxmode.mtu > RTE_ETHER_MTU)
2520 conf->txmode.offloads |= RTE_ETH_TX_OFFLOAD_MULTI_SEGS;
2525 /* Power library initialized in the main routine. 8< */
2527 main(int argc, char **argv)
2529 struct lcore_conf *qconf;
2530 struct rte_eth_dev_info dev_info;
2531 struct rte_eth_txconf *txconf;
2537 uint32_t n_tx_queue, nb_lcores;
2538 uint32_t dev_rxq_num, dev_txq_num;
2539 uint8_t nb_rx_queue, queue, socketid;
2541 const char *ptr_strings[NUM_TELSTATS];
2544 ret = rte_eal_init(argc, argv);
2546 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
2550 /* catch SIGINT and restore cpufreq governor to ondemand */
2551 signal(SIGINT, signal_exit_now);
2553 /* init RTE timer library to be used late */
2554 rte_timer_subsystem_init();
2556 /* if we're running pmd-mgmt mode, don't default to baseline mode */
2557 baseline_enabled = false;
2559 /* parse application arguments (after the EAL ones) */
2560 ret = parse_args(argc, argv);
2562 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
2564 if (app_mode == APP_MODE_DEFAULT)
2565 app_mode = autodetect_mode();
2567 RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
2568 mode_to_str(app_mode));
2570 /* only legacy and empty poll mode rely on power library */
2571 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2572 init_power_library())
2573 rte_exit(EXIT_FAILURE, "init_power_library failed\n");
2575 if (update_lcore_params() < 0)
2576 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
2578 if (check_lcore_params() < 0)
2579 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
2581 ret = init_lcore_rx_queues();
2583 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
2585 nb_ports = rte_eth_dev_count_avail();
2587 if (check_port_config() < 0)
2588 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
2590 nb_lcores = rte_lcore_count();
2592 /* initialize all ports */
2593 RTE_ETH_FOREACH_DEV(portid) {
2594 struct rte_eth_conf local_port_conf = port_conf;
2595 /* not all app modes need interrupts */
2596 bool need_intr = app_mode == APP_MODE_LEGACY ||
2597 app_mode == APP_MODE_INTERRUPT;
2599 /* skip ports that are not enabled */
2600 if ((enabled_port_mask & (1 << portid)) == 0) {
2601 printf("\nSkipping disabled port %d\n", portid);
2606 printf("Initializing port %d ... ", portid );
2609 ret = rte_eth_dev_info_get(portid, &dev_info);
2611 rte_exit(EXIT_FAILURE,
2612 "Error during getting device (port %u) info: %s\n",
2613 portid, strerror(-ret));
2615 dev_rxq_num = dev_info.max_rx_queues;
2616 dev_txq_num = dev_info.max_tx_queues;
2618 nb_rx_queue = get_port_n_rx_queues(portid);
2619 if (nb_rx_queue > dev_rxq_num)
2620 rte_exit(EXIT_FAILURE,
2621 "Cannot configure not existed rxq: "
2622 "port=%d\n", portid);
2624 n_tx_queue = nb_lcores;
2625 if (n_tx_queue > dev_txq_num)
2626 n_tx_queue = dev_txq_num;
2627 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2628 nb_rx_queue, (unsigned)n_tx_queue );
2629 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2630 if (nb_rx_queue == 0)
2634 local_port_conf.intr_conf.rxq = 1;
2636 ret = rte_eth_dev_info_get(portid, &dev_info);
2638 rte_exit(EXIT_FAILURE,
2639 "Error during getting device (port %u) info: %s\n",
2640 portid, strerror(-ret));
2642 ret = config_port_max_pkt_len(&local_port_conf, &dev_info);
2644 rte_exit(EXIT_FAILURE,
2645 "Invalid max packet length: %u (port %u)\n",
2646 max_pkt_len, portid);
2648 if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
2649 local_port_conf.txmode.offloads |=
2650 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
2652 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2653 dev_info.flow_type_rss_offloads;
2654 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2655 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2656 printf("Port %u modified RSS hash function based on hardware support,"
2657 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2659 port_conf.rx_adv_conf.rss_conf.rss_hf,
2660 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2663 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf == 0)
2664 local_port_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
2665 local_port_conf.rxmode.offloads &= dev_info.rx_offload_capa;
2666 port_conf.rxmode.offloads = local_port_conf.rxmode.offloads;
2668 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2669 (uint16_t)n_tx_queue, &local_port_conf);
2671 rte_exit(EXIT_FAILURE, "Cannot configure device: "
2672 "err=%d, port=%d\n", ret, portid);
2674 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2677 rte_exit(EXIT_FAILURE,
2678 "Cannot adjust number of descriptors: err=%d, port=%d\n",
2681 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2683 rte_exit(EXIT_FAILURE,
2684 "Cannot get MAC address: err=%d, port=%d\n",
2687 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2691 ret = init_mem(NB_MBUF);
2693 rte_exit(EXIT_FAILURE, "init_mem failed\n");
2695 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2696 if (rte_lcore_is_enabled(lcore_id) == 0)
2699 /* Initialize TX buffers */
2700 qconf = &lcore_conf[lcore_id];
2701 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2702 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2703 rte_eth_dev_socket_id(portid));
2704 if (qconf->tx_buffer[portid] == NULL)
2705 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2708 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2711 /* init one TX queue per couple (lcore,port) */
2713 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2714 if (rte_lcore_is_enabled(lcore_id) == 0)
2717 if (queueid >= dev_txq_num)
2722 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2726 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2729 txconf = &dev_info.default_txconf;
2730 txconf->offloads = local_port_conf.txmode.offloads;
2731 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2734 rte_exit(EXIT_FAILURE,
2735 "rte_eth_tx_queue_setup: err=%d, "
2736 "port=%d\n", ret, portid);
2738 qconf = &lcore_conf[lcore_id];
2739 qconf->tx_queue_id[portid] = queueid;
2742 qconf->tx_port_id[qconf->n_tx_port] = portid;
2748 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2749 if (rte_lcore_is_enabled(lcore_id) == 0)
2752 if (app_mode == APP_MODE_LEGACY) {
2753 /* init timer structures for each enabled lcore */
2754 rte_timer_init(&power_timers[lcore_id]);
2755 hz = rte_get_timer_hz();
2756 rte_timer_reset(&power_timers[lcore_id],
2757 hz/TIMER_NUMBER_PER_SECOND,
2759 power_timer_cb, NULL);
2761 qconf = &lcore_conf[lcore_id];
2762 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2765 /* init RX queues */
2766 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2767 struct rte_eth_rxconf rxq_conf;
2769 portid = qconf->rx_queue_list[queue].port_id;
2770 queueid = qconf->rx_queue_list[queue].queue_id;
2774 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2778 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2781 ret = rte_eth_dev_info_get(portid, &dev_info);
2783 rte_exit(EXIT_FAILURE,
2784 "Error during getting device (port %u) info: %s\n",
2785 portid, strerror(-ret));
2787 rxq_conf = dev_info.default_rxconf;
2788 rxq_conf.offloads = port_conf.rxmode.offloads;
2789 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2790 socketid, &rxq_conf,
2791 pktmbuf_pool[socketid]);
2793 rte_exit(EXIT_FAILURE,
2794 "rte_eth_rx_queue_setup: err=%d, "
2795 "port=%d\n", ret, portid);
2798 if (add_cb_parse_ptype(portid, queueid) < 0)
2799 rte_exit(EXIT_FAILURE,
2800 "Fail to add ptype cb\n");
2803 if (app_mode == APP_MODE_PMD_MGMT && !baseline_enabled) {
2804 ret = rte_power_ethdev_pmgmt_queue_enable(
2805 lcore_id, portid, queueid,
2808 rte_exit(EXIT_FAILURE,
2809 "rte_power_ethdev_pmgmt_queue_enable: err=%d, port=%d\n",
2814 /* >8 End of power library initialization. */
2819 RTE_ETH_FOREACH_DEV(portid) {
2820 if ((enabled_port_mask & (1 << portid)) == 0) {
2824 ret = rte_eth_dev_start(portid);
2826 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2827 "port=%d\n", ret, portid);
2829 * If enabled, put device in promiscuous mode.
2830 * This allows IO forwarding mode to forward packets
2831 * to itself through 2 cross-connected ports of the
2834 if (promiscuous_on) {
2835 ret = rte_eth_promiscuous_enable(portid);
2837 rte_exit(EXIT_FAILURE,
2838 "rte_eth_promiscuous_enable: err=%s, port=%u\n",
2839 rte_strerror(-ret), portid);
2841 /* initialize spinlock for each port */
2842 rte_spinlock_init(&(locks[portid]));
2845 if (!check_ptype(portid))
2846 rte_exit(EXIT_FAILURE,
2847 "PMD can not provide needed ptypes\n");
2850 check_all_ports_link_status(enabled_port_mask);
2852 if (app_mode == APP_MODE_EMPTY_POLL) {
2854 if (empty_poll_train) {
2855 policy.state = TRAINING;
2857 policy.state = MED_NORMAL;
2858 policy.med_base_edpi = ep_med_edpi;
2859 policy.hgh_base_edpi = ep_hgh_edpi;
2862 ret = rte_power_empty_poll_stat_init(&ep_params,
2866 rte_exit(EXIT_FAILURE, "empty poll init failed");
2870 /* launch per-lcore init on every lcore */
2871 if (app_mode == APP_MODE_LEGACY) {
2872 rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN);
2873 } else if (app_mode == APP_MODE_EMPTY_POLL) {
2874 empty_poll_stop = false;
2875 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2877 } else if (app_mode == APP_MODE_TELEMETRY) {
2880 /* Init metrics library */
2881 rte_metrics_init(rte_socket_id());
2882 /** Register stats with metrics library */
2883 for (i = 0; i < NUM_TELSTATS; i++)
2884 ptr_strings[i] = telstats_strings[i].name;
2886 ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
2888 telstats_index = ret;
2890 rte_exit(EXIT_FAILURE, "failed to register metrics names");
2892 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2893 rte_spinlock_init(&stats[lcore_id].telemetry_lock);
2895 rte_timer_init(&telemetry_timer);
2896 rte_telemetry_register_cmd("/l3fwd-power/stats",
2898 "Returns global power stats. Parameters: None");
2899 rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
2901 } else if (app_mode == APP_MODE_INTERRUPT) {
2902 rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN);
2903 } else if (app_mode == APP_MODE_PMD_MGMT) {
2904 /* reuse telemetry loop for PMD power management mode */
2905 rte_eal_mp_remote_launch(main_telemetry_loop, NULL, CALL_MAIN);
2908 if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
2909 launch_timer(rte_lcore_id());
2911 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2912 if (rte_eal_wait_lcore(lcore_id) < 0)
2916 if (app_mode == APP_MODE_PMD_MGMT) {
2917 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2918 if (rte_lcore_is_enabled(lcore_id) == 0)
2920 qconf = &lcore_conf[lcore_id];
2921 for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
2922 portid = qconf->rx_queue_list[queue].port_id;
2923 queueid = qconf->rx_queue_list[queue].queue_id;
2925 rte_power_ethdev_pmgmt_queue_disable(lcore_id,
2931 RTE_ETH_FOREACH_DEV(portid)
2933 if ((enabled_port_mask & (1 << portid)) == 0)
2936 ret = rte_eth_dev_stop(portid);
2938 RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n",
2941 rte_eth_dev_close(portid);
2944 if (app_mode == APP_MODE_EMPTY_POLL)
2945 rte_power_empty_poll_stat_free();
2947 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2948 deinit_power_library())
2949 rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
2951 if (rte_eal_cleanup() < 0)
2952 RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");