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 = ETH_MQ_RX_RSS,
254 .offloads = DEV_RX_OFFLOAD_CHECKSUM,
259 .rss_hf = ETH_RSS_UDP,
263 .mq_mode = 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 /* Freqency 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 /* this is checked in H/W */
511 * 3. The IP version number must be 4. If the version number is not 4
512 * then the packet may be another version of IP, such as IPng or
515 if (((pkt->version_ihl) >> 4) != 4)
518 * 4. The IP header length field must be large enough to hold the
519 * minimum length legal IP datagram (20 bytes = 5 words).
521 if ((pkt->version_ihl & 0xf) < 5)
525 * 5. The IP total length field must be large enough to hold the IP
526 * datagram header, whose length is specified in the IP header length
529 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
536 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
538 print_ipv4_key(struct ipv4_5tuple key)
540 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
541 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
542 key.port_dst, key.port_src, key.proto);
545 print_ipv6_key(struct ipv6_5tuple key)
547 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
548 "port dst = %d, port src = %d, proto = %d\n",
549 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
550 key.port_dst, key.port_src, key.proto);
553 static inline uint16_t
554 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
555 lookup_struct_t * ipv4_l3fwd_lookup_struct)
557 struct ipv4_5tuple key;
558 struct rte_tcp_hdr *tcp;
559 struct rte_udp_hdr *udp;
562 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
563 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
564 key.proto = ipv4_hdr->next_proto_id;
566 switch (ipv4_hdr->next_proto_id) {
568 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
569 sizeof(struct rte_ipv4_hdr));
570 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
571 key.port_src = rte_be_to_cpu_16(tcp->src_port);
575 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
576 sizeof(struct rte_ipv4_hdr));
577 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
578 key.port_src = rte_be_to_cpu_16(udp->src_port);
587 /* Find destination port */
588 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
589 return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
592 static inline uint16_t
593 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
594 lookup_struct_t *ipv6_l3fwd_lookup_struct)
596 struct ipv6_5tuple key;
597 struct rte_tcp_hdr *tcp;
598 struct rte_udp_hdr *udp;
601 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
602 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
604 key.proto = ipv6_hdr->proto;
606 switch (ipv6_hdr->proto) {
608 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
609 sizeof(struct rte_ipv6_hdr));
610 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
611 key.port_src = rte_be_to_cpu_16(tcp->src_port);
615 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
616 sizeof(struct rte_ipv6_hdr));
617 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
618 key.port_src = rte_be_to_cpu_16(udp->src_port);
627 /* Find destination port */
628 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
629 return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
633 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
634 static inline uint16_t
635 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
636 lookup_struct_t *ipv4_l3fwd_lookup_struct)
640 return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
641 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
647 parse_ptype_one(struct rte_mbuf *m)
649 struct rte_ether_hdr *eth_hdr;
650 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
653 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
654 ether_type = eth_hdr->ether_type;
655 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
656 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
657 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
658 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
660 m->packet_type = packet_type;
664 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
665 struct rte_mbuf *pkts[], uint16_t nb_pkts,
666 uint16_t max_pkts __rte_unused,
667 void *user_param __rte_unused)
671 for (i = 0; i < nb_pkts; ++i)
672 parse_ptype_one(pkts[i]);
678 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
680 printf("Port %d: softly parse packet type info\n", portid);
681 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
684 printf("Failed to add rx callback: port=%d\n", portid);
689 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
690 struct lcore_conf *qconf)
692 struct rte_ether_hdr *eth_hdr;
693 struct rte_ipv4_hdr *ipv4_hdr;
697 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
699 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
700 /* Handle IPv4 headers.*/
702 rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
703 sizeof(struct rte_ether_hdr));
705 #ifdef DO_RFC_1812_CHECKS
706 /* Check to make sure the packet is valid (RFC1812) */
707 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
713 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
714 qconf->ipv4_lookup_struct);
715 if (dst_port >= RTE_MAX_ETHPORTS ||
716 (enabled_port_mask & 1 << dst_port) == 0)
719 /* 02:00:00:00:00:xx */
720 d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0];
721 *((uint64_t *)d_addr_bytes) =
722 0x000000000002 + ((uint64_t)dst_port << 40);
724 #ifdef DO_RFC_1812_CHECKS
725 /* Update time to live and header checksum */
726 --(ipv4_hdr->time_to_live);
727 ++(ipv4_hdr->hdr_checksum);
731 rte_ether_addr_copy(&ports_eth_addr[dst_port],
734 send_single_packet(m, dst_port);
735 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
736 /* Handle IPv6 headers.*/
737 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
738 struct rte_ipv6_hdr *ipv6_hdr;
741 rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
742 sizeof(struct rte_ether_hdr));
744 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
745 qconf->ipv6_lookup_struct);
747 if (dst_port >= RTE_MAX_ETHPORTS ||
748 (enabled_port_mask & 1 << dst_port) == 0)
751 /* 02:00:00:00:00:xx */
752 d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0];
753 *((uint64_t *)d_addr_bytes) =
754 0x000000000002 + ((uint64_t)dst_port << 40);
757 rte_ether_addr_copy(&ports_eth_addr[dst_port],
760 send_single_packet(m, dst_port);
762 /* We don't currently handle IPv6 packets in LPM mode. */
770 #define MINIMUM_SLEEP_TIME 1
771 #define SUSPEND_THRESHOLD 300
773 static inline uint32_t
774 power_idle_heuristic(uint32_t zero_rx_packet_count)
776 /* If zero count is less than 100, sleep 1us */
777 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
778 return MINIMUM_SLEEP_TIME;
779 /* If zero count is less than 1000, sleep 100 us which is the
780 minimum latency switching from C3/C6 to C0
783 return SUSPEND_THRESHOLD;
786 static inline enum freq_scale_hint_t
787 power_freq_scaleup_heuristic(unsigned lcore_id,
791 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
793 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
796 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
797 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
798 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
799 #define FREQ_UP_TREND1_ACC 1
800 #define FREQ_UP_TREND2_ACC 100
801 #define FREQ_UP_THRESHOLD 10000
803 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
804 stats[lcore_id].trend = 0;
806 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
807 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
808 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
809 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
811 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
812 stats[lcore_id].trend = 0;
820 * force polling thread sleep until one-shot rx interrupt triggers
829 sleep_until_rx_interrupt(int num, int lcore)
832 * we want to track when we are woken up by traffic so that we can go
833 * back to sleep again without log spamming. Avoid cache line sharing
834 * to prevent threads stepping on each others' toes.
838 } __rte_cache_aligned status[RTE_MAX_LCORE];
839 struct rte_epoll_event event[num];
845 if (status[lcore].wakeup) {
846 RTE_LOG(INFO, L3FWD_POWER,
847 "lcore %u sleeps until interrupt triggers\n",
851 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
852 for (i = 0; i < n; i++) {
853 data = event[i].epdata.data;
854 port_id = ((uintptr_t)data) >> CHAR_BIT;
855 queue_id = ((uintptr_t)data) &
856 RTE_LEN2MASK(CHAR_BIT, uint8_t);
857 RTE_LOG(INFO, L3FWD_POWER,
858 "lcore %u is waked up from rx interrupt on"
859 " port %d queue %d\n",
860 rte_lcore_id(), port_id, queue_id);
862 status[lcore].wakeup = n != 0;
867 static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
870 struct lcore_rx_queue *rx_queue;
874 for (i = 0; i < qconf->n_rx_queue; ++i) {
875 rx_queue = &(qconf->rx_queue_list[i]);
876 port_id = rx_queue->port_id;
877 queue_id = rx_queue->queue_id;
879 rte_spinlock_lock(&(locks[port_id]));
881 rte_eth_dev_rx_intr_enable(port_id, queue_id);
883 rte_eth_dev_rx_intr_disable(port_id, queue_id);
884 rte_spinlock_unlock(&(locks[port_id]));
888 static int event_register(struct lcore_conf *qconf)
890 struct lcore_rx_queue *rx_queue;
897 for (i = 0; i < qconf->n_rx_queue; ++i) {
898 rx_queue = &(qconf->rx_queue_list[i]);
899 portid = rx_queue->port_id;
900 queueid = rx_queue->queue_id;
901 data = portid << CHAR_BIT | queueid;
903 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
904 RTE_EPOLL_PER_THREAD,
906 (void *)((uintptr_t)data));
914 /* Main processing loop. 8< */
915 static int main_intr_loop(__rte_unused void *dummy)
917 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
918 unsigned int lcore_id;
919 uint64_t prev_tsc, diff_tsc, cur_tsc;
923 struct lcore_conf *qconf;
924 struct lcore_rx_queue *rx_queue;
925 uint32_t lcore_rx_idle_count = 0;
926 uint32_t lcore_idle_hint = 0;
929 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
930 US_PER_S * BURST_TX_DRAIN_US;
934 lcore_id = rte_lcore_id();
935 qconf = &lcore_conf[lcore_id];
937 if (qconf->n_rx_queue == 0) {
938 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
943 RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
946 for (i = 0; i < qconf->n_rx_queue; i++) {
947 portid = qconf->rx_queue_list[i].port_id;
948 queueid = qconf->rx_queue_list[i].queue_id;
949 RTE_LOG(INFO, L3FWD_POWER,
950 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
951 lcore_id, portid, queueid);
954 /* add into event wait list */
955 if (event_register(qconf) == 0)
958 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
961 stats[lcore_id].nb_iteration_looped++;
963 cur_tsc = rte_rdtsc();
966 * TX burst queue drain
968 diff_tsc = cur_tsc - prev_tsc;
969 if (unlikely(diff_tsc > drain_tsc)) {
970 for (i = 0; i < qconf->n_tx_port; ++i) {
971 portid = qconf->tx_port_id[i];
972 rte_eth_tx_buffer_flush(portid,
973 qconf->tx_queue_id[portid],
974 qconf->tx_buffer[portid]);
981 * Read packet from RX queues
983 lcore_rx_idle_count = 0;
984 for (i = 0; i < qconf->n_rx_queue; ++i) {
985 rx_queue = &(qconf->rx_queue_list[i]);
986 rx_queue->idle_hint = 0;
987 portid = rx_queue->port_id;
988 queueid = rx_queue->queue_id;
990 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
993 stats[lcore_id].nb_rx_processed += nb_rx;
994 if (unlikely(nb_rx == 0)) {
996 * no packet received from rx queue, try to
997 * sleep for a while forcing CPU enter deeper
1000 rx_queue->zero_rx_packet_count++;
1002 if (rx_queue->zero_rx_packet_count <=
1003 MIN_ZERO_POLL_COUNT)
1006 rx_queue->idle_hint = power_idle_heuristic(
1007 rx_queue->zero_rx_packet_count);
1008 lcore_rx_idle_count++;
1010 rx_queue->zero_rx_packet_count = 0;
1013 /* Prefetch first packets */
1014 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1015 rte_prefetch0(rte_pktmbuf_mtod(
1016 pkts_burst[j], void *));
1019 /* Prefetch and forward already prefetched packets */
1020 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1021 rte_prefetch0(rte_pktmbuf_mtod(
1022 pkts_burst[j + PREFETCH_OFFSET],
1024 l3fwd_simple_forward(
1025 pkts_burst[j], portid, qconf);
1028 /* Forward remaining prefetched packets */
1029 for (; j < nb_rx; j++) {
1030 l3fwd_simple_forward(
1031 pkts_burst[j], portid, qconf);
1035 if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
1037 * All Rx queues empty in recent consecutive polls,
1038 * sleep in a conservative manner, meaning sleep as
1042 lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
1043 i < qconf->n_rx_queue; ++i) {
1044 rx_queue = &(qconf->rx_queue_list[i]);
1045 if (rx_queue->idle_hint < lcore_idle_hint)
1046 lcore_idle_hint = rx_queue->idle_hint;
1049 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1051 * execute "pause" instruction to avoid context
1052 * switch which generally take hundred of
1053 * microseconds for short sleep.
1055 rte_delay_us(lcore_idle_hint);
1057 /* suspend until rx interrupt triggers */
1059 turn_on_off_intr(qconf, 1);
1060 sleep_until_rx_interrupt(
1063 turn_on_off_intr(qconf, 0);
1065 * start receiving packets immediately
1067 if (likely(!is_done()))
1071 stats[lcore_id].sleep_time += lcore_idle_hint;
1077 /* >8 End of main processing loop. */
1079 /* main processing loop */
1081 main_telemetry_loop(__rte_unused void *dummy)
1083 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1084 unsigned int lcore_id;
1085 uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
1089 struct lcore_conf *qconf;
1090 struct lcore_rx_queue *rx_queue;
1091 uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
1092 uint64_t poll_count;
1095 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1096 US_PER_S * BURST_TX_DRAIN_US;
1102 lcore_id = rte_lcore_id();
1103 qconf = &lcore_conf[lcore_id];
1105 if (qconf->n_rx_queue == 0) {
1106 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1111 RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
1114 for (i = 0; i < qconf->n_rx_queue; i++) {
1115 portid = qconf->rx_queue_list[i].port_id;
1116 queueid = qconf->rx_queue_list[i].queue_id;
1117 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1118 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1121 while (!is_done()) {
1123 cur_tsc = rte_rdtsc();
1125 * TX burst queue drain
1127 diff_tsc = cur_tsc - prev_tsc;
1128 if (unlikely(diff_tsc > drain_tsc)) {
1129 for (i = 0; i < qconf->n_tx_port; ++i) {
1130 portid = qconf->tx_port_id[i];
1131 rte_eth_tx_buffer_flush(portid,
1132 qconf->tx_queue_id[portid],
1133 qconf->tx_buffer[portid]);
1139 * Read packet from RX queues
1141 for (i = 0; i < qconf->n_rx_queue; ++i) {
1142 rx_queue = &(qconf->rx_queue_list[i]);
1143 portid = rx_queue->port_id;
1144 queueid = rx_queue->queue_id;
1146 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1148 ep_nep[nb_rx == 0]++;
1149 fp_nfp[nb_rx == MAX_PKT_BURST]++;
1151 if (unlikely(nb_rx == 0))
1154 /* Prefetch first packets */
1155 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1156 rte_prefetch0(rte_pktmbuf_mtod(
1157 pkts_burst[j], void *));
1160 /* Prefetch and forward already prefetched packets */
1161 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1162 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1163 j + PREFETCH_OFFSET], void *));
1164 l3fwd_simple_forward(pkts_burst[j], portid,
1168 /* Forward remaining prefetched packets */
1169 for (; j < nb_rx; j++) {
1170 l3fwd_simple_forward(pkts_burst[j], portid,
1174 if (unlikely(poll_count >= DEFAULT_COUNT)) {
1175 diff_tsc = cur_tsc - prev_tel_tsc;
1176 if (diff_tsc >= MAX_CYCLES) {
1178 } else if (diff_tsc > MIN_CYCLES &&
1179 diff_tsc < MAX_CYCLES) {
1180 br = (diff_tsc * 100) / MAX_CYCLES;
1185 prev_tel_tsc = cur_tsc;
1186 /* update stats for telemetry */
1187 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
1188 stats[lcore_id].ep_nep[0] = ep_nep[0];
1189 stats[lcore_id].ep_nep[1] = ep_nep[1];
1190 stats[lcore_id].fp_nfp[0] = fp_nfp[0];
1191 stats[lcore_id].fp_nfp[1] = fp_nfp[1];
1192 stats[lcore_id].br = br;
1193 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
1199 /* main processing loop */
1201 main_empty_poll_loop(__rte_unused void *dummy)
1203 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1204 unsigned int lcore_id;
1205 uint64_t prev_tsc, diff_tsc, cur_tsc;
1209 struct lcore_conf *qconf;
1210 struct lcore_rx_queue *rx_queue;
1212 const uint64_t drain_tsc =
1213 (rte_get_tsc_hz() + US_PER_S - 1) /
1214 US_PER_S * BURST_TX_DRAIN_US;
1218 lcore_id = rte_lcore_id();
1219 qconf = &lcore_conf[lcore_id];
1221 if (qconf->n_rx_queue == 0) {
1222 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1227 for (i = 0; i < qconf->n_rx_queue; i++) {
1228 portid = qconf->rx_queue_list[i].port_id;
1229 queueid = qconf->rx_queue_list[i].queue_id;
1230 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1231 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1234 while (!is_done()) {
1235 stats[lcore_id].nb_iteration_looped++;
1237 cur_tsc = rte_rdtsc();
1239 * TX burst queue drain
1241 diff_tsc = cur_tsc - prev_tsc;
1242 if (unlikely(diff_tsc > drain_tsc)) {
1243 for (i = 0; i < qconf->n_tx_port; ++i) {
1244 portid = qconf->tx_port_id[i];
1245 rte_eth_tx_buffer_flush(portid,
1246 qconf->tx_queue_id[portid],
1247 qconf->tx_buffer[portid]);
1253 * Read packet from RX queues
1255 for (i = 0; i < qconf->n_rx_queue; ++i) {
1256 rx_queue = &(qconf->rx_queue_list[i]);
1257 rx_queue->idle_hint = 0;
1258 portid = rx_queue->port_id;
1259 queueid = rx_queue->queue_id;
1261 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1264 stats[lcore_id].nb_rx_processed += nb_rx;
1268 rte_power_empty_poll_stat_update(lcore_id);
1272 rte_power_poll_stat_update(lcore_id, nb_rx);
1276 /* Prefetch first packets */
1277 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1278 rte_prefetch0(rte_pktmbuf_mtod(
1279 pkts_burst[j], void *));
1282 /* Prefetch and forward already prefetched packets */
1283 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1284 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1285 j + PREFETCH_OFFSET],
1287 l3fwd_simple_forward(pkts_burst[j], portid,
1291 /* Forward remaining prefetched packets */
1292 for (; j < nb_rx; j++) {
1293 l3fwd_simple_forward(pkts_burst[j], portid,
1303 /* main processing loop */
1305 main_legacy_loop(__rte_unused void *dummy)
1307 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1309 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
1310 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
1314 struct lcore_conf *qconf;
1315 struct lcore_rx_queue *rx_queue;
1316 enum freq_scale_hint_t lcore_scaleup_hint;
1317 uint32_t lcore_rx_idle_count = 0;
1318 uint32_t lcore_idle_hint = 0;
1321 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
1324 hz = rte_get_timer_hz();
1325 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1327 lcore_id = rte_lcore_id();
1328 qconf = &lcore_conf[lcore_id];
1330 if (qconf->n_rx_queue == 0) {
1331 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1335 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1337 for (i = 0; i < qconf->n_rx_queue; i++) {
1338 portid = qconf->rx_queue_list[i].port_id;
1339 queueid = qconf->rx_queue_list[i].queue_id;
1340 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1341 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1344 /* add into event wait list */
1345 if (event_register(qconf) == 0)
1348 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1350 while (!is_done()) {
1351 stats[lcore_id].nb_iteration_looped++;
1353 cur_tsc = rte_rdtsc();
1354 cur_tsc_power = cur_tsc;
1357 * TX burst queue drain
1359 diff_tsc = cur_tsc - prev_tsc;
1360 if (unlikely(diff_tsc > drain_tsc)) {
1361 for (i = 0; i < qconf->n_tx_port; ++i) {
1362 portid = qconf->tx_port_id[i];
1363 rte_eth_tx_buffer_flush(portid,
1364 qconf->tx_queue_id[portid],
1365 qconf->tx_buffer[portid]);
1370 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1371 if (diff_tsc_power > tim_res_tsc) {
1373 prev_tsc_power = cur_tsc_power;
1378 * Read packet from RX queues
1380 lcore_scaleup_hint = FREQ_CURRENT;
1381 lcore_rx_idle_count = 0;
1382 for (i = 0; i < qconf->n_rx_queue; ++i) {
1383 rx_queue = &(qconf->rx_queue_list[i]);
1384 rx_queue->idle_hint = 0;
1385 portid = rx_queue->port_id;
1386 queueid = rx_queue->queue_id;
1388 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1391 stats[lcore_id].nb_rx_processed += nb_rx;
1392 if (unlikely(nb_rx == 0)) {
1394 * no packet received from rx queue, try to
1395 * sleep for a while forcing CPU enter deeper
1398 rx_queue->zero_rx_packet_count++;
1400 if (rx_queue->zero_rx_packet_count <=
1401 MIN_ZERO_POLL_COUNT)
1404 rx_queue->idle_hint = power_idle_heuristic(\
1405 rx_queue->zero_rx_packet_count);
1406 lcore_rx_idle_count++;
1408 rx_queue->zero_rx_packet_count = 0;
1411 * do not scale up frequency immediately as
1412 * user to kernel space communication is costly
1413 * which might impact packet I/O for received
1416 rx_queue->freq_up_hint =
1417 power_freq_scaleup_heuristic(lcore_id,
1421 /* Prefetch first packets */
1422 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1423 rte_prefetch0(rte_pktmbuf_mtod(
1424 pkts_burst[j], void *));
1427 /* Prefetch and forward already prefetched packets */
1428 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1429 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1430 j + PREFETCH_OFFSET], void *));
1431 l3fwd_simple_forward(pkts_burst[j], portid,
1435 /* Forward remaining prefetched packets */
1436 for (; j < nb_rx; j++) {
1437 l3fwd_simple_forward(pkts_burst[j], portid,
1442 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1443 for (i = 1, lcore_scaleup_hint =
1444 qconf->rx_queue_list[0].freq_up_hint;
1445 i < qconf->n_rx_queue; ++i) {
1446 rx_queue = &(qconf->rx_queue_list[i]);
1447 if (rx_queue->freq_up_hint >
1449 lcore_scaleup_hint =
1450 rx_queue->freq_up_hint;
1453 if (lcore_scaleup_hint == FREQ_HIGHEST) {
1454 if (rte_power_freq_max)
1455 rte_power_freq_max(lcore_id);
1456 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1457 if (rte_power_freq_up)
1458 rte_power_freq_up(lcore_id);
1462 * All Rx queues empty in recent consecutive polls,
1463 * sleep in a conservative manner, meaning sleep as
1466 for (i = 1, lcore_idle_hint =
1467 qconf->rx_queue_list[0].idle_hint;
1468 i < qconf->n_rx_queue; ++i) {
1469 rx_queue = &(qconf->rx_queue_list[i]);
1470 if (rx_queue->idle_hint < lcore_idle_hint)
1471 lcore_idle_hint = rx_queue->idle_hint;
1474 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1476 * execute "pause" instruction to avoid context
1477 * switch which generally take hundred of
1478 * microseconds for short sleep.
1480 rte_delay_us(lcore_idle_hint);
1482 /* suspend until rx interrupt triggers */
1484 turn_on_off_intr(qconf, 1);
1485 sleep_until_rx_interrupt(
1488 turn_on_off_intr(qconf, 0);
1490 * start receiving packets immediately
1492 if (likely(!is_done()))
1496 stats[lcore_id].sleep_time += lcore_idle_hint;
1504 check_lcore_params(void)
1506 uint8_t queue, lcore;
1510 for (i = 0; i < nb_lcore_params; ++i) {
1511 queue = lcore_params[i].queue_id;
1512 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1513 printf("invalid queue number: %hhu\n", queue);
1516 lcore = lcore_params[i].lcore_id;
1517 if (!rte_lcore_is_enabled(lcore)) {
1518 printf("error: lcore %hhu is not enabled in lcore "
1522 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1524 printf("warning: lcore %hhu is on socket %d with numa "
1525 "off\n", lcore, socketid);
1527 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
1528 printf("cannot enable main core %d in config for telemetry mode\n",
1537 check_port_config(void)
1542 for (i = 0; i < nb_lcore_params; ++i) {
1543 portid = lcore_params[i].port_id;
1544 if ((enabled_port_mask & (1 << portid)) == 0) {
1545 printf("port %u is not enabled in port mask\n",
1549 if (!rte_eth_dev_is_valid_port(portid)) {
1550 printf("port %u is not present on the board\n",
1559 get_port_n_rx_queues(const uint16_t port)
1564 for (i = 0; i < nb_lcore_params; ++i) {
1565 if (lcore_params[i].port_id == port &&
1566 lcore_params[i].queue_id > queue)
1567 queue = lcore_params[i].queue_id;
1569 return (uint8_t)(++queue);
1573 init_lcore_rx_queues(void)
1575 uint16_t i, nb_rx_queue;
1578 for (i = 0; i < nb_lcore_params; ++i) {
1579 lcore = lcore_params[i].lcore_id;
1580 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1581 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1582 printf("error: too many queues (%u) for lcore: %u\n",
1583 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1586 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1587 lcore_params[i].port_id;
1588 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1589 lcore_params[i].queue_id;
1590 lcore_conf[lcore].n_rx_queue++;
1598 print_usage(const char *prgname)
1600 printf ("%s [EAL options] -- -p PORTMASK -P"
1601 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1602 " [--high-perf-cores CORELIST"
1603 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1604 " [--max-pkt-len PKTLEN]\n"
1605 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1606 " -P: enable promiscuous mode\n"
1607 " --config (port,queue,lcore): rx queues configuration\n"
1608 " --high-perf-cores CORELIST: list of high performance cores\n"
1609 " --perf-config: similar as config, cores specified as indices"
1610 " for bins containing high or regular performance cores\n"
1611 " --no-numa: optional, disable numa awareness\n"
1612 " --max-pkt-len PKTLEN: maximum packet length in decimal (64-9600)\n"
1613 " --parse-ptype: parse packet type by software\n"
1614 " --legacy: use legacy interrupt-based scaling\n"
1615 " --empty-poll: enable empty poll detection"
1616 " follow (training_flag, high_threshold, med_threshold)\n"
1617 " --telemetry: enable telemetry mode, to update"
1618 " empty polls, full polls, and core busyness to telemetry\n"
1619 " --interrupt-only: enable interrupt-only mode\n"
1620 " --pmd-mgmt MODE: enable PMD power management mode. "
1621 "Currently supported modes: baseline, monitor, pause, scale\n",
1625 static int parse_max_pkt_len(const char *pktlen)
1630 /* parse decimal string */
1631 len = strtoul(pktlen, &end, 10);
1632 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1642 parse_portmask(const char *portmask)
1647 /* parse hexadecimal string */
1648 pm = strtoul(portmask, &end, 16);
1649 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1656 parse_config(const char *q_arg)
1659 const char *p, *p0 = q_arg;
1667 unsigned long int_fld[_NUM_FLD];
1668 char *str_fld[_NUM_FLD];
1672 nb_lcore_params = 0;
1674 while ((p = strchr(p0,'(')) != NULL) {
1676 if((p0 = strchr(p,')')) == NULL)
1680 if(size >= sizeof(s))
1683 snprintf(s, sizeof(s), "%.*s", size, p);
1684 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1687 for (i = 0; i < _NUM_FLD; i++){
1689 int_fld[i] = strtoul(str_fld[i], &end, 0);
1690 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1694 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1695 printf("exceeded max number of lcore params: %hu\n",
1699 lcore_params_array[nb_lcore_params].port_id =
1700 (uint8_t)int_fld[FLD_PORT];
1701 lcore_params_array[nb_lcore_params].queue_id =
1702 (uint8_t)int_fld[FLD_QUEUE];
1703 lcore_params_array[nb_lcore_params].lcore_id =
1704 (uint8_t)int_fld[FLD_LCORE];
1707 lcore_params = lcore_params_array;
1713 parse_pmd_mgmt_config(const char *name)
1715 #define PMD_MGMT_MONITOR "monitor"
1716 #define PMD_MGMT_PAUSE "pause"
1717 #define PMD_MGMT_SCALE "scale"
1718 #define PMD_MGMT_BASELINE "baseline"
1720 if (strncmp(PMD_MGMT_MONITOR, name, sizeof(PMD_MGMT_MONITOR)) == 0) {
1721 pmgmt_type = RTE_POWER_MGMT_TYPE_MONITOR;
1725 if (strncmp(PMD_MGMT_PAUSE, name, sizeof(PMD_MGMT_PAUSE)) == 0) {
1726 pmgmt_type = RTE_POWER_MGMT_TYPE_PAUSE;
1730 if (strncmp(PMD_MGMT_SCALE, name, sizeof(PMD_MGMT_SCALE)) == 0) {
1731 pmgmt_type = RTE_POWER_MGMT_TYPE_SCALE;
1734 if (strncmp(PMD_MGMT_BASELINE, name, sizeof(PMD_MGMT_BASELINE)) == 0) {
1735 baseline_enabled = true;
1738 /* unknown PMD power management mode */
1743 parse_ep_config(const char *q_arg)
1746 const char *p = q_arg;
1756 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1757 ep_hgh_edpi = EMPTY_POLL_HGH_THRESHOLD;
1759 strlcpy(s, p, sizeof(s));
1761 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1763 empty_poll_train = false;
1770 training_flag = strtoul(str_fld[0], &end, 0);
1771 med_edpi = strtoul(str_fld[1], &end, 0);
1772 hgh_edpi = strtoul(str_fld[2], &end, 0);
1774 if (training_flag == 1)
1775 empty_poll_train = true;
1778 ep_med_edpi = med_edpi;
1781 ep_hgh_edpi = hgh_edpi;
1791 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1792 #define CMD_LINE_OPT_LEGACY "legacy"
1793 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
1794 #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
1795 #define CMD_LINE_OPT_TELEMETRY "telemetry"
1796 #define CMD_LINE_OPT_PMD_MGMT "pmd-mgmt"
1797 #define CMD_LINE_OPT_MAX_PKT_LEN "max-pkt-len"
1799 /* Parse the argument given in the command line of the application */
1801 parse_args(int argc, char **argv)
1807 char *prgname = argv[0];
1808 static struct option lgopts[] = {
1809 {"config", 1, 0, 0},
1810 {"perf-config", 1, 0, 0},
1811 {"high-perf-cores", 1, 0, 0},
1812 {"no-numa", 0, 0, 0},
1813 {CMD_LINE_OPT_MAX_PKT_LEN, 1, 0, 0},
1814 {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
1815 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1816 {CMD_LINE_OPT_LEGACY, 0, 0, 0},
1817 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
1818 {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
1819 {CMD_LINE_OPT_PMD_MGMT, 1, 0, 0},
1825 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1826 lgopts, &option_index)) != EOF) {
1831 enabled_port_mask = parse_portmask(optarg);
1832 if (enabled_port_mask == 0) {
1833 printf("invalid portmask\n");
1834 print_usage(prgname);
1839 printf("Promiscuous mode selected\n");
1843 limit = parse_max_pkt_len(optarg);
1844 freq_tlb[LOW] = limit;
1847 limit = parse_max_pkt_len(optarg);
1848 freq_tlb[MED] = limit;
1851 limit = parse_max_pkt_len(optarg);
1852 freq_tlb[HGH] = limit;
1856 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1857 ret = parse_config(optarg);
1859 printf("invalid config\n");
1860 print_usage(prgname);
1865 if (!strncmp(lgopts[option_index].name,
1866 "perf-config", 11)) {
1867 ret = parse_perf_config(optarg);
1869 printf("invalid perf-config\n");
1870 print_usage(prgname);
1875 if (!strncmp(lgopts[option_index].name,
1876 "high-perf-cores", 15)) {
1877 ret = parse_perf_core_list(optarg);
1879 printf("invalid high-perf-cores\n");
1880 print_usage(prgname);
1885 if (!strncmp(lgopts[option_index].name,
1887 printf("numa is disabled \n");
1891 if (!strncmp(lgopts[option_index].name,
1892 CMD_LINE_OPT_LEGACY,
1893 sizeof(CMD_LINE_OPT_LEGACY))) {
1894 if (app_mode != APP_MODE_DEFAULT) {
1895 printf(" legacy mode is mutually exclusive with other modes\n");
1898 app_mode = APP_MODE_LEGACY;
1899 printf("legacy mode is enabled\n");
1902 if (!strncmp(lgopts[option_index].name,
1903 CMD_LINE_OPT_EMPTY_POLL, 10)) {
1904 if (app_mode != APP_MODE_DEFAULT) {
1905 printf(" empty-poll mode is mutually exclusive with other modes\n");
1908 app_mode = APP_MODE_EMPTY_POLL;
1909 ret = parse_ep_config(optarg);
1912 printf("invalid empty poll config\n");
1913 print_usage(prgname);
1916 printf("empty-poll is enabled\n");
1919 if (!strncmp(lgopts[option_index].name,
1920 CMD_LINE_OPT_TELEMETRY,
1921 sizeof(CMD_LINE_OPT_TELEMETRY))) {
1922 if (app_mode != APP_MODE_DEFAULT) {
1923 printf(" telemetry mode is mutually exclusive with other modes\n");
1926 app_mode = APP_MODE_TELEMETRY;
1927 printf("telemetry mode is enabled\n");
1930 if (!strncmp(lgopts[option_index].name,
1931 CMD_LINE_OPT_PMD_MGMT,
1932 sizeof(CMD_LINE_OPT_PMD_MGMT))) {
1933 if (app_mode != APP_MODE_DEFAULT) {
1934 printf(" power mgmt mode is mutually exclusive with other modes\n");
1937 if (parse_pmd_mgmt_config(optarg) < 0) {
1938 printf(" Invalid PMD power management mode: %s\n",
1942 app_mode = APP_MODE_PMD_MGMT;
1943 printf("PMD power mgmt mode is enabled\n");
1945 if (!strncmp(lgopts[option_index].name,
1946 CMD_LINE_OPT_INTERRUPT_ONLY,
1947 sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
1948 if (app_mode != APP_MODE_DEFAULT) {
1949 printf(" interrupt-only mode is mutually exclusive with other modes\n");
1952 app_mode = APP_MODE_INTERRUPT;
1953 printf("interrupt-only mode is enabled\n");
1956 if (!strncmp(lgopts[option_index].name,
1957 CMD_LINE_OPT_MAX_PKT_LEN,
1958 sizeof(CMD_LINE_OPT_MAX_PKT_LEN))) {
1959 printf("Custom frame size is configured\n");
1960 max_pkt_len = parse_max_pkt_len(optarg);
1963 if (!strncmp(lgopts[option_index].name,
1964 CMD_LINE_OPT_PARSE_PTYPE,
1965 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1966 printf("soft parse-ptype is enabled\n");
1973 print_usage(prgname);
1979 argv[optind-1] = prgname;
1982 optind = 1; /* reset getopt lib */
1987 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
1989 char buf[RTE_ETHER_ADDR_FMT_SIZE];
1990 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
1991 printf("%s%s", name, buf);
1994 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1996 setup_hash(int socketid)
1998 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
2000 .entries = L3FWD_HASH_ENTRIES,
2001 .key_len = sizeof(struct ipv4_5tuple),
2002 .hash_func = DEFAULT_HASH_FUNC,
2003 .hash_func_init_val = 0,
2006 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
2008 .entries = L3FWD_HASH_ENTRIES,
2009 .key_len = sizeof(struct ipv6_5tuple),
2010 .hash_func = DEFAULT_HASH_FUNC,
2011 .hash_func_init_val = 0,
2018 /* create ipv4 hash */
2019 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
2020 ipv4_l3fwd_hash_params.name = s;
2021 ipv4_l3fwd_hash_params.socket_id = socketid;
2022 ipv4_l3fwd_lookup_struct[socketid] =
2023 rte_hash_create(&ipv4_l3fwd_hash_params);
2024 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2025 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2026 "socket %d\n", socketid);
2028 /* create ipv6 hash */
2029 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
2030 ipv6_l3fwd_hash_params.name = s;
2031 ipv6_l3fwd_hash_params.socket_id = socketid;
2032 ipv6_l3fwd_lookup_struct[socketid] =
2033 rte_hash_create(&ipv6_l3fwd_hash_params);
2034 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
2035 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2036 "socket %d\n", socketid);
2039 /* populate the ipv4 hash */
2040 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2041 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
2042 (void *) &ipv4_l3fwd_route_array[i].key);
2044 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2045 "l3fwd hash on socket %d\n", i, socketid);
2047 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
2048 printf("Hash: Adding key\n");
2049 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
2052 /* populate the ipv6 hash */
2053 for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
2054 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
2055 (void *) &ipv6_l3fwd_route_array[i].key);
2057 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2058 "l3fwd hash on socket %d\n", i, socketid);
2060 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
2061 printf("Hash: Adding key\n");
2062 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
2067 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2069 setup_lpm(int socketid)
2075 /* create the LPM table */
2076 struct rte_lpm_config lpm_ipv4_config;
2078 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
2079 lpm_ipv4_config.number_tbl8s = 256;
2080 lpm_ipv4_config.flags = 0;
2082 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
2083 ipv4_l3fwd_lookup_struct[socketid] =
2084 rte_lpm_create(s, socketid, &lpm_ipv4_config);
2085 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2086 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
2087 " on socket %d\n", socketid);
2089 /* populate the LPM table */
2090 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2091 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
2092 ipv4_l3fwd_route_array[i].ip,
2093 ipv4_l3fwd_route_array[i].depth,
2094 ipv4_l3fwd_route_array[i].if_out);
2097 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
2098 "l3fwd LPM table on socket %d\n",
2102 printf("LPM: Adding route 0x%08x / %d (%d)\n",
2103 (unsigned)ipv4_l3fwd_route_array[i].ip,
2104 ipv4_l3fwd_route_array[i].depth,
2105 ipv4_l3fwd_route_array[i].if_out);
2111 init_mem(unsigned nb_mbuf)
2113 struct lcore_conf *qconf;
2118 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2119 if (rte_lcore_is_enabled(lcore_id) == 0)
2123 socketid = rte_lcore_to_socket_id(lcore_id);
2127 if (socketid >= NB_SOCKETS) {
2128 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
2129 "out of range %d\n", socketid,
2130 lcore_id, NB_SOCKETS);
2132 if (pktmbuf_pool[socketid] == NULL) {
2133 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
2134 pktmbuf_pool[socketid] =
2135 rte_pktmbuf_pool_create(s, nb_mbuf,
2136 MEMPOOL_CACHE_SIZE, 0,
2137 RTE_MBUF_DEFAULT_BUF_SIZE,
2139 if (pktmbuf_pool[socketid] == NULL)
2140 rte_exit(EXIT_FAILURE,
2141 "Cannot init mbuf pool on socket %d\n",
2144 printf("Allocated mbuf pool on socket %d\n",
2147 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2148 setup_lpm(socketid);
2150 setup_hash(socketid);
2153 qconf = &lcore_conf[lcore_id];
2154 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
2155 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2156 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
2162 /* Check the link status of all ports in up to 9s, and print them finally */
2164 check_all_ports_link_status(uint32_t port_mask)
2166 #define CHECK_INTERVAL 100 /* 100ms */
2167 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
2168 uint8_t count, all_ports_up, print_flag = 0;
2170 struct rte_eth_link link;
2172 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
2174 printf("\nChecking link status");
2176 for (count = 0; count <= MAX_CHECK_TIME; count++) {
2178 RTE_ETH_FOREACH_DEV(portid) {
2179 if ((port_mask & (1 << portid)) == 0)
2181 memset(&link, 0, sizeof(link));
2182 ret = rte_eth_link_get_nowait(portid, &link);
2185 if (print_flag == 1)
2186 printf("Port %u link get failed: %s\n",
2187 portid, rte_strerror(-ret));
2190 /* print link status if flag set */
2191 if (print_flag == 1) {
2192 rte_eth_link_to_str(link_status_text,
2193 sizeof(link_status_text), &link);
2194 printf("Port %d %s\n", portid,
2198 /* clear all_ports_up flag if any link down */
2199 if (link.link_status == ETH_LINK_DOWN) {
2204 /* after finally printing all link status, get out */
2205 if (print_flag == 1)
2208 if (all_ports_up == 0) {
2211 rte_delay_ms(CHECK_INTERVAL);
2214 /* set the print_flag if all ports up or timeout */
2215 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
2222 static int check_ptype(uint16_t portid)
2225 int ptype_l3_ipv4 = 0;
2226 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2227 int ptype_l3_ipv6 = 0;
2229 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
2231 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
2235 uint32_t ptypes[ret];
2237 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
2238 for (i = 0; i < ret; ++i) {
2239 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
2241 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2242 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
2247 if (ptype_l3_ipv4 == 0)
2248 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
2250 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2251 if (ptype_l3_ipv6 == 0)
2252 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
2255 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2257 #else /* APP_LOOKUP_EXACT_MATCH */
2258 if (ptype_l3_ipv4 && ptype_l3_ipv6)
2267 init_power_library(void)
2269 enum power_management_env env;
2270 unsigned int lcore_id;
2273 RTE_LCORE_FOREACH(lcore_id) {
2274 /* init power management library */
2275 ret = rte_power_init(lcore_id);
2278 "Library initialization failed on core %u\n",
2282 /* we're not supporting the VM channel mode */
2283 env = rte_power_get_env();
2284 if (env != PM_ENV_ACPI_CPUFREQ &&
2285 env != PM_ENV_PSTATE_CPUFREQ) {
2287 "Only ACPI and PSTATE mode are supported\n");
2295 deinit_power_library(void)
2297 unsigned int lcore_id;
2300 RTE_LCORE_FOREACH(lcore_id) {
2301 /* deinit power management library */
2302 ret = rte_power_exit(lcore_id);
2305 "Library deinitialization failed on core %u\n",
2314 get_current_stat_values(uint64_t *values)
2316 unsigned int lcore_id = rte_lcore_id();
2317 struct lcore_conf *qconf;
2318 uint64_t app_eps = 0, app_fps = 0, app_br = 0;
2321 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2322 qconf = &lcore_conf[lcore_id];
2323 if (qconf->n_rx_queue == 0)
2326 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
2327 app_eps += stats[lcore_id].ep_nep[1];
2328 app_fps += stats[lcore_id].fp_nfp[1];
2329 app_br += stats[lcore_id].br;
2330 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
2334 values[0] = app_eps/count;
2335 values[1] = app_fps/count;
2336 values[2] = app_br/count;
2338 memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
2343 update_telemetry(__rte_unused struct rte_timer *tim,
2344 __rte_unused void *arg)
2347 uint64_t values[NUM_TELSTATS] = {0};
2349 get_current_stat_values(values);
2350 ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
2351 values, RTE_DIM(values));
2353 RTE_LOG(WARNING, POWER, "failed to update metrcis\n");
2357 handle_app_stats(const char *cmd __rte_unused,
2358 const char *params __rte_unused,
2359 struct rte_tel_data *d)
2361 uint64_t values[NUM_TELSTATS] = {0};
2364 rte_tel_data_start_dict(d);
2365 get_current_stat_values(values);
2366 for (i = 0; i < NUM_TELSTATS; i++)
2367 rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
2373 telemetry_setup_timer(void)
2375 int lcore_id = rte_lcore_id();
2376 uint64_t hz = rte_get_timer_hz();
2379 ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
2380 rte_timer_reset_sync(&telemetry_timer,
2388 empty_poll_setup_timer(void)
2390 int lcore_id = rte_lcore_id();
2391 uint64_t hz = rte_get_timer_hz();
2393 struct ep_params *ep_ptr = ep_params;
2395 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
2397 rte_timer_reset_sync(&ep_ptr->timer0,
2398 ep_ptr->interval_ticks,
2401 rte_empty_poll_detection,
2406 launch_timer(unsigned int lcore_id)
2408 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
2410 RTE_SET_USED(lcore_id);
2413 if (rte_get_main_lcore() != lcore_id) {
2414 rte_panic("timer on lcore:%d which is not main core:%d\n",
2416 rte_get_main_lcore());
2419 RTE_LOG(INFO, POWER, "Bring up the Timer\n");
2421 if (app_mode == APP_MODE_EMPTY_POLL)
2422 empty_poll_setup_timer();
2424 telemetry_setup_timer();
2426 cycles_10ms = rte_get_timer_hz() / 100;
2428 while (!is_done()) {
2429 cur_tsc = rte_rdtsc();
2430 diff_tsc = cur_tsc - prev_tsc;
2431 if (diff_tsc > cycles_10ms) {
2434 cycles_10ms = rte_get_timer_hz() / 100;
2438 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
2444 autodetect_mode(void)
2446 RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
2449 * Empty poll and telemetry modes have to be specifically requested to
2450 * be enabled, but we can auto-detect between interrupt mode with or
2451 * without frequency scaling. Both ACPI and pstate can be used.
2453 if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
2454 return APP_MODE_LEGACY;
2455 if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
2456 return APP_MODE_LEGACY;
2458 RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
2460 return APP_MODE_INTERRUPT;
2464 mode_to_str(enum appmode mode)
2467 case APP_MODE_LEGACY:
2469 case APP_MODE_EMPTY_POLL:
2470 return "empty poll";
2471 case APP_MODE_TELEMETRY:
2473 case APP_MODE_INTERRUPT:
2474 return "interrupt-only";
2475 case APP_MODE_PMD_MGMT:
2483 eth_dev_get_overhead_len(uint32_t max_rx_pktlen, uint16_t max_mtu)
2485 uint32_t overhead_len;
2487 if (max_mtu != UINT16_MAX && max_rx_pktlen > max_mtu)
2488 overhead_len = max_rx_pktlen - max_mtu;
2490 overhead_len = RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
2492 return overhead_len;
2496 config_port_max_pkt_len(struct rte_eth_conf *conf,
2497 struct rte_eth_dev_info *dev_info)
2499 uint32_t overhead_len;
2501 if (max_pkt_len == 0)
2504 if (max_pkt_len < RTE_ETHER_MIN_LEN || max_pkt_len > MAX_JUMBO_PKT_LEN)
2507 overhead_len = eth_dev_get_overhead_len(dev_info->max_rx_pktlen,
2509 conf->rxmode.mtu = max_pkt_len - overhead_len;
2511 if (conf->rxmode.mtu > RTE_ETHER_MTU)
2512 conf->txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
2517 /* Power library initialized in the main routine. 8< */
2519 main(int argc, char **argv)
2521 struct lcore_conf *qconf;
2522 struct rte_eth_dev_info dev_info;
2523 struct rte_eth_txconf *txconf;
2529 uint32_t n_tx_queue, nb_lcores;
2530 uint32_t dev_rxq_num, dev_txq_num;
2531 uint8_t nb_rx_queue, queue, socketid;
2533 const char *ptr_strings[NUM_TELSTATS];
2535 /* catch SIGINT and restore cpufreq governor to ondemand */
2536 signal(SIGINT, signal_exit_now);
2539 ret = rte_eal_init(argc, argv);
2541 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
2545 /* init RTE timer library to be used late */
2546 rte_timer_subsystem_init();
2548 /* if we're running pmd-mgmt mode, don't default to baseline mode */
2549 baseline_enabled = false;
2551 /* parse application arguments (after the EAL ones) */
2552 ret = parse_args(argc, argv);
2554 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
2556 if (app_mode == APP_MODE_DEFAULT)
2557 app_mode = autodetect_mode();
2559 RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
2560 mode_to_str(app_mode));
2562 /* only legacy and empty poll mode rely on power library */
2563 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2564 init_power_library())
2565 rte_exit(EXIT_FAILURE, "init_power_library failed\n");
2567 if (update_lcore_params() < 0)
2568 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
2570 if (check_lcore_params() < 0)
2571 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
2573 ret = init_lcore_rx_queues();
2575 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
2577 nb_ports = rte_eth_dev_count_avail();
2579 if (check_port_config() < 0)
2580 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
2582 nb_lcores = rte_lcore_count();
2584 /* initialize all ports */
2585 RTE_ETH_FOREACH_DEV(portid) {
2586 struct rte_eth_conf local_port_conf = port_conf;
2587 /* not all app modes need interrupts */
2588 bool need_intr = app_mode == APP_MODE_LEGACY ||
2589 app_mode == APP_MODE_INTERRUPT;
2591 /* skip ports that are not enabled */
2592 if ((enabled_port_mask & (1 << portid)) == 0) {
2593 printf("\nSkipping disabled port %d\n", portid);
2598 printf("Initializing port %d ... ", portid );
2601 ret = rte_eth_dev_info_get(portid, &dev_info);
2603 rte_exit(EXIT_FAILURE,
2604 "Error during getting device (port %u) info: %s\n",
2605 portid, strerror(-ret));
2607 dev_rxq_num = dev_info.max_rx_queues;
2608 dev_txq_num = dev_info.max_tx_queues;
2610 nb_rx_queue = get_port_n_rx_queues(portid);
2611 if (nb_rx_queue > dev_rxq_num)
2612 rte_exit(EXIT_FAILURE,
2613 "Cannot configure not existed rxq: "
2614 "port=%d\n", portid);
2616 n_tx_queue = nb_lcores;
2617 if (n_tx_queue > dev_txq_num)
2618 n_tx_queue = dev_txq_num;
2619 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2620 nb_rx_queue, (unsigned)n_tx_queue );
2621 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2622 if (nb_rx_queue == 0)
2626 local_port_conf.intr_conf.rxq = 1;
2628 ret = rte_eth_dev_info_get(portid, &dev_info);
2630 rte_exit(EXIT_FAILURE,
2631 "Error during getting device (port %u) info: %s\n",
2632 portid, strerror(-ret));
2634 ret = config_port_max_pkt_len(&local_port_conf, &dev_info);
2636 rte_exit(EXIT_FAILURE,
2637 "Invalid max packet length: %u (port %u)\n",
2638 max_pkt_len, portid);
2640 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
2641 local_port_conf.txmode.offloads |=
2642 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
2644 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2645 dev_info.flow_type_rss_offloads;
2646 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2647 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2648 printf("Port %u modified RSS hash function based on hardware support,"
2649 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2651 port_conf.rx_adv_conf.rss_conf.rss_hf,
2652 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2655 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2656 (uint16_t)n_tx_queue, &local_port_conf);
2658 rte_exit(EXIT_FAILURE, "Cannot configure device: "
2659 "err=%d, port=%d\n", ret, portid);
2661 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2664 rte_exit(EXIT_FAILURE,
2665 "Cannot adjust number of descriptors: err=%d, port=%d\n",
2668 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2670 rte_exit(EXIT_FAILURE,
2671 "Cannot get MAC address: err=%d, port=%d\n",
2674 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2678 ret = init_mem(NB_MBUF);
2680 rte_exit(EXIT_FAILURE, "init_mem failed\n");
2682 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2683 if (rte_lcore_is_enabled(lcore_id) == 0)
2686 /* Initialize TX buffers */
2687 qconf = &lcore_conf[lcore_id];
2688 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2689 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2690 rte_eth_dev_socket_id(portid));
2691 if (qconf->tx_buffer[portid] == NULL)
2692 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2695 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2698 /* init one TX queue per couple (lcore,port) */
2700 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2701 if (rte_lcore_is_enabled(lcore_id) == 0)
2704 if (queueid >= dev_txq_num)
2709 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2713 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2716 txconf = &dev_info.default_txconf;
2717 txconf->offloads = local_port_conf.txmode.offloads;
2718 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2721 rte_exit(EXIT_FAILURE,
2722 "rte_eth_tx_queue_setup: err=%d, "
2723 "port=%d\n", ret, portid);
2725 qconf = &lcore_conf[lcore_id];
2726 qconf->tx_queue_id[portid] = queueid;
2729 qconf->tx_port_id[qconf->n_tx_port] = portid;
2735 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2736 if (rte_lcore_is_enabled(lcore_id) == 0)
2739 if (app_mode == APP_MODE_LEGACY) {
2740 /* init timer structures for each enabled lcore */
2741 rte_timer_init(&power_timers[lcore_id]);
2742 hz = rte_get_timer_hz();
2743 rte_timer_reset(&power_timers[lcore_id],
2744 hz/TIMER_NUMBER_PER_SECOND,
2746 power_timer_cb, NULL);
2748 qconf = &lcore_conf[lcore_id];
2749 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2752 /* init RX queues */
2753 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2754 struct rte_eth_rxconf rxq_conf;
2756 portid = qconf->rx_queue_list[queue].port_id;
2757 queueid = qconf->rx_queue_list[queue].queue_id;
2761 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2765 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2768 ret = rte_eth_dev_info_get(portid, &dev_info);
2770 rte_exit(EXIT_FAILURE,
2771 "Error during getting device (port %u) info: %s\n",
2772 portid, strerror(-ret));
2774 rxq_conf = dev_info.default_rxconf;
2775 rxq_conf.offloads = port_conf.rxmode.offloads;
2776 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2777 socketid, &rxq_conf,
2778 pktmbuf_pool[socketid]);
2780 rte_exit(EXIT_FAILURE,
2781 "rte_eth_rx_queue_setup: err=%d, "
2782 "port=%d\n", ret, portid);
2785 if (add_cb_parse_ptype(portid, queueid) < 0)
2786 rte_exit(EXIT_FAILURE,
2787 "Fail to add ptype cb\n");
2790 if (app_mode == APP_MODE_PMD_MGMT && !baseline_enabled) {
2791 ret = rte_power_ethdev_pmgmt_queue_enable(
2792 lcore_id, portid, queueid,
2795 rte_exit(EXIT_FAILURE,
2796 "rte_power_ethdev_pmgmt_queue_enable: err=%d, port=%d\n",
2801 /* >8 End of power library initialization. */
2806 RTE_ETH_FOREACH_DEV(portid) {
2807 if ((enabled_port_mask & (1 << portid)) == 0) {
2811 ret = rte_eth_dev_start(portid);
2813 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2814 "port=%d\n", ret, portid);
2816 * If enabled, put device in promiscuous mode.
2817 * This allows IO forwarding mode to forward packets
2818 * to itself through 2 cross-connected ports of the
2821 if (promiscuous_on) {
2822 ret = rte_eth_promiscuous_enable(portid);
2824 rte_exit(EXIT_FAILURE,
2825 "rte_eth_promiscuous_enable: err=%s, port=%u\n",
2826 rte_strerror(-ret), portid);
2828 /* initialize spinlock for each port */
2829 rte_spinlock_init(&(locks[portid]));
2832 if (!check_ptype(portid))
2833 rte_exit(EXIT_FAILURE,
2834 "PMD can not provide needed ptypes\n");
2837 check_all_ports_link_status(enabled_port_mask);
2839 if (app_mode == APP_MODE_EMPTY_POLL) {
2841 if (empty_poll_train) {
2842 policy.state = TRAINING;
2844 policy.state = MED_NORMAL;
2845 policy.med_base_edpi = ep_med_edpi;
2846 policy.hgh_base_edpi = ep_hgh_edpi;
2849 ret = rte_power_empty_poll_stat_init(&ep_params,
2853 rte_exit(EXIT_FAILURE, "empty poll init failed");
2857 /* launch per-lcore init on every lcore */
2858 if (app_mode == APP_MODE_LEGACY) {
2859 rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN);
2860 } else if (app_mode == APP_MODE_EMPTY_POLL) {
2861 empty_poll_stop = false;
2862 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2864 } else if (app_mode == APP_MODE_TELEMETRY) {
2867 /* Init metrics library */
2868 rte_metrics_init(rte_socket_id());
2869 /** Register stats with metrics library */
2870 for (i = 0; i < NUM_TELSTATS; i++)
2871 ptr_strings[i] = telstats_strings[i].name;
2873 ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
2875 telstats_index = ret;
2877 rte_exit(EXIT_FAILURE, "failed to register metrics names");
2879 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2880 rte_spinlock_init(&stats[lcore_id].telemetry_lock);
2882 rte_timer_init(&telemetry_timer);
2883 rte_telemetry_register_cmd("/l3fwd-power/stats",
2885 "Returns global power stats. Parameters: None");
2886 rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
2888 } else if (app_mode == APP_MODE_INTERRUPT) {
2889 rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN);
2890 } else if (app_mode == APP_MODE_PMD_MGMT) {
2891 /* reuse telemetry loop for PMD power management mode */
2892 rte_eal_mp_remote_launch(main_telemetry_loop, NULL, CALL_MAIN);
2895 if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
2896 launch_timer(rte_lcore_id());
2898 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2899 if (rte_eal_wait_lcore(lcore_id) < 0)
2903 if (app_mode == APP_MODE_PMD_MGMT) {
2904 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2905 if (rte_lcore_is_enabled(lcore_id) == 0)
2907 qconf = &lcore_conf[lcore_id];
2908 for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
2909 portid = qconf->rx_queue_list[queue].port_id;
2910 queueid = qconf->rx_queue_list[queue].queue_id;
2912 rte_power_ethdev_pmgmt_queue_disable(lcore_id,
2918 RTE_ETH_FOREACH_DEV(portid)
2920 if ((enabled_port_mask & (1 << portid)) == 0)
2923 ret = rte_eth_dev_stop(portid);
2925 RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n",
2928 rte_eth_dev_close(portid);
2931 if (app_mode == APP_MODE_EMPTY_POLL)
2932 rte_power_empty_poll_stat_free();
2934 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2935 deinit_power_library())
2936 rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
2938 if (rte_eal_cleanup() < 0)
2939 RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");