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_atomic.h>
28 #include <rte_cycles.h>
29 #include <rte_prefetch.h>
30 #include <rte_lcore.h>
31 #include <rte_per_lcore.h>
32 #include <rte_branch_prediction.h>
33 #include <rte_interrupts.h>
34 #include <rte_random.h>
35 #include <rte_debug.h>
36 #include <rte_ether.h>
37 #include <rte_ethdev.h>
38 #include <rte_mempool.h>
43 #include <rte_string_fns.h>
44 #include <rte_timer.h>
45 #include <rte_power.h>
46 #include <rte_spinlock.h>
47 #include <rte_power_empty_poll.h>
48 #include <rte_metrics.h>
49 #include <rte_telemetry.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,
205 enum appmode app_mode;
207 enum freq_scale_hint_t
215 struct lcore_rx_queue {
218 enum freq_scale_hint_t freq_up_hint;
219 uint32_t zero_rx_packet_count;
221 } __rte_cache_aligned;
223 #define MAX_RX_QUEUE_PER_LCORE 16
224 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
225 #define MAX_RX_QUEUE_PER_PORT 128
227 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
230 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
231 static struct lcore_params lcore_params_array_default[] = {
243 struct lcore_params *lcore_params = lcore_params_array_default;
244 uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
246 static struct rte_eth_conf port_conf = {
248 .mq_mode = ETH_MQ_RX_RSS,
249 .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
251 .offloads = DEV_RX_OFFLOAD_CHECKSUM,
256 .rss_hf = ETH_RSS_UDP,
260 .mq_mode = ETH_MQ_TX_NONE,
264 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
267 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
270 #include <rte_hash_crc.h>
271 #define DEFAULT_HASH_FUNC rte_hash_crc
273 #include <rte_jhash.h>
274 #define DEFAULT_HASH_FUNC rte_jhash
286 uint8_t ip_dst[IPV6_ADDR_LEN];
287 uint8_t ip_src[IPV6_ADDR_LEN];
293 struct ipv4_l3fwd_route {
294 struct ipv4_5tuple key;
298 struct ipv6_l3fwd_route {
299 struct ipv6_5tuple key;
303 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
304 {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
305 {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
306 {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
307 {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
310 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
313 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
314 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
315 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
316 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
322 typedef struct rte_hash lookup_struct_t;
323 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
324 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
326 #define L3FWD_HASH_ENTRIES 1024
328 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
329 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
332 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
333 struct ipv4_l3fwd_route {
339 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
340 {RTE_IPV4(1,1,1,0), 24, 0},
341 {RTE_IPV4(2,1,1,0), 24, 1},
342 {RTE_IPV4(3,1,1,0), 24, 2},
343 {RTE_IPV4(4,1,1,0), 24, 3},
344 {RTE_IPV4(5,1,1,0), 24, 4},
345 {RTE_IPV4(6,1,1,0), 24, 5},
346 {RTE_IPV4(7,1,1,0), 24, 6},
347 {RTE_IPV4(8,1,1,0), 24, 7},
350 #define IPV4_L3FWD_LPM_MAX_RULES 1024
352 typedef struct rte_lpm lookup_struct_t;
353 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
358 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
360 uint16_t tx_port_id[RTE_MAX_ETHPORTS];
361 uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
362 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
363 lookup_struct_t * ipv4_lookup_struct;
364 lookup_struct_t * ipv6_lookup_struct;
365 } __rte_cache_aligned;
368 /* total sleep time in ms since last frequency scaling down */
370 /* number of long sleep recently */
371 uint32_t nb_long_sleep;
372 /* freq. scaling up trend */
374 /* total packet processed recently */
375 uint64_t nb_rx_processed;
376 /* total iterations looped recently */
377 uint64_t nb_iteration_looped;
379 * Represents empty and non empty polls
380 * of rte_eth_rx_burst();
381 * ep_nep[0] holds non empty polls
382 * i.e. 0 < nb_rx <= MAX_BURST
383 * ep_nep[1] holds empty polls.
388 * Represents full and empty+partial
389 * polls of rte_eth_rx_burst();
390 * ep_nep[0] holds empty+partial polls.
391 * i.e. 0 <= nb_rx < MAX_BURST
392 * ep_nep[1] holds full polls
393 * i.e. nb_rx == MAX_BURST
397 rte_spinlock_t telemetry_lock;
398 } __rte_cache_aligned;
400 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
401 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
402 static struct rte_timer power_timers[RTE_MAX_LCORE];
404 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
405 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
406 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
410 * These defaults are using the max frequency index (1), a medium index (9)
411 * and a typical low frequency index (14). These can be adjusted to use
412 * different indexes using the relevant command line parameters.
414 static uint8_t freq_tlb[] = {14, 9, 1};
416 static int is_done(void)
421 /* exit signal handler */
423 signal_exit_now(int sigtype)
426 if (sigtype == SIGINT)
431 /* Freqency scale down timer callback */
433 power_timer_cb(__rte_unused struct rte_timer *tim,
434 __rte_unused void *arg)
437 float sleep_time_ratio;
438 unsigned lcore_id = rte_lcore_id();
440 /* accumulate total execution time in us when callback is invoked */
441 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
442 (float)SCALING_PERIOD;
444 * check whether need to scale down frequency a step if it sleep a lot.
446 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
447 if (rte_power_freq_down)
448 rte_power_freq_down(lcore_id);
450 else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
451 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
453 * scale down a step if average packet per iteration less
456 if (rte_power_freq_down)
457 rte_power_freq_down(lcore_id);
461 * initialize another timer according to current frequency to ensure
462 * timer interval is relatively fixed.
464 hz = rte_get_timer_hz();
465 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
466 SINGLE, lcore_id, power_timer_cb, NULL);
468 stats[lcore_id].nb_rx_processed = 0;
469 stats[lcore_id].nb_iteration_looped = 0;
471 stats[lcore_id].sleep_time = 0;
474 /* Enqueue a single packet, and send burst if queue is filled */
476 send_single_packet(struct rte_mbuf *m, uint16_t port)
479 struct lcore_conf *qconf;
481 lcore_id = rte_lcore_id();
482 qconf = &lcore_conf[lcore_id];
484 rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
485 qconf->tx_buffer[port], m);
490 #ifdef DO_RFC_1812_CHECKS
492 is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len)
494 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
496 * 1. The packet length reported by the Link Layer must be large
497 * enough to hold the minimum length legal IP datagram (20 bytes).
499 if (link_len < sizeof(struct rte_ipv4_hdr))
502 /* 2. The IP checksum must be correct. */
503 /* this is checked in H/W */
506 * 3. The IP version number must be 4. If the version number is not 4
507 * then the packet may be another version of IP, such as IPng or
510 if (((pkt->version_ihl) >> 4) != 4)
513 * 4. The IP header length field must be large enough to hold the
514 * minimum length legal IP datagram (20 bytes = 5 words).
516 if ((pkt->version_ihl & 0xf) < 5)
520 * 5. The IP total length field must be large enough to hold the IP
521 * datagram header, whose length is specified in the IP header length
524 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
531 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
533 print_ipv4_key(struct ipv4_5tuple key)
535 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
536 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
537 key.port_dst, key.port_src, key.proto);
540 print_ipv6_key(struct ipv6_5tuple key)
542 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
543 "port dst = %d, port src = %d, proto = %d\n",
544 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
545 key.port_dst, key.port_src, key.proto);
548 static inline uint16_t
549 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
550 lookup_struct_t * ipv4_l3fwd_lookup_struct)
552 struct ipv4_5tuple key;
553 struct rte_tcp_hdr *tcp;
554 struct rte_udp_hdr *udp;
557 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
558 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
559 key.proto = ipv4_hdr->next_proto_id;
561 switch (ipv4_hdr->next_proto_id) {
563 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
564 sizeof(struct rte_ipv4_hdr));
565 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
566 key.port_src = rte_be_to_cpu_16(tcp->src_port);
570 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
571 sizeof(struct rte_ipv4_hdr));
572 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
573 key.port_src = rte_be_to_cpu_16(udp->src_port);
582 /* Find destination port */
583 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
584 return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
587 static inline uint16_t
588 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
589 lookup_struct_t *ipv6_l3fwd_lookup_struct)
591 struct ipv6_5tuple key;
592 struct rte_tcp_hdr *tcp;
593 struct rte_udp_hdr *udp;
596 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
597 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
599 key.proto = ipv6_hdr->proto;
601 switch (ipv6_hdr->proto) {
603 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
604 sizeof(struct rte_ipv6_hdr));
605 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
606 key.port_src = rte_be_to_cpu_16(tcp->src_port);
610 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
611 sizeof(struct rte_ipv6_hdr));
612 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
613 key.port_src = rte_be_to_cpu_16(udp->src_port);
622 /* Find destination port */
623 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
624 return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
628 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
629 static inline uint16_t
630 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
631 lookup_struct_t *ipv4_l3fwd_lookup_struct)
635 return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
636 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
642 parse_ptype_one(struct rte_mbuf *m)
644 struct rte_ether_hdr *eth_hdr;
645 uint32_t packet_type = RTE_PTYPE_UNKNOWN;
648 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
649 ether_type = eth_hdr->ether_type;
650 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
651 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
652 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
653 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
655 m->packet_type = packet_type;
659 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
660 struct rte_mbuf *pkts[], uint16_t nb_pkts,
661 uint16_t max_pkts __rte_unused,
662 void *user_param __rte_unused)
666 for (i = 0; i < nb_pkts; ++i)
667 parse_ptype_one(pkts[i]);
673 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
675 printf("Port %d: softly parse packet type info\n", portid);
676 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
679 printf("Failed to add rx callback: port=%d\n", portid);
684 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
685 struct lcore_conf *qconf)
687 struct rte_ether_hdr *eth_hdr;
688 struct rte_ipv4_hdr *ipv4_hdr;
692 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
694 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
695 /* Handle IPv4 headers.*/
697 rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
698 sizeof(struct rte_ether_hdr));
700 #ifdef DO_RFC_1812_CHECKS
701 /* Check to make sure the packet is valid (RFC1812) */
702 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
708 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
709 qconf->ipv4_lookup_struct);
710 if (dst_port >= RTE_MAX_ETHPORTS ||
711 (enabled_port_mask & 1 << dst_port) == 0)
714 /* 02:00:00:00:00:xx */
715 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
716 *((uint64_t *)d_addr_bytes) =
717 0x000000000002 + ((uint64_t)dst_port << 40);
719 #ifdef DO_RFC_1812_CHECKS
720 /* Update time to live and header checksum */
721 --(ipv4_hdr->time_to_live);
722 ++(ipv4_hdr->hdr_checksum);
726 rte_ether_addr_copy(&ports_eth_addr[dst_port],
729 send_single_packet(m, dst_port);
730 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
731 /* Handle IPv6 headers.*/
732 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
733 struct rte_ipv6_hdr *ipv6_hdr;
736 rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
737 sizeof(struct rte_ether_hdr));
739 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
740 qconf->ipv6_lookup_struct);
742 if (dst_port >= RTE_MAX_ETHPORTS ||
743 (enabled_port_mask & 1 << dst_port) == 0)
746 /* 02:00:00:00:00:xx */
747 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
748 *((uint64_t *)d_addr_bytes) =
749 0x000000000002 + ((uint64_t)dst_port << 40);
752 rte_ether_addr_copy(&ports_eth_addr[dst_port],
755 send_single_packet(m, dst_port);
757 /* We don't currently handle IPv6 packets in LPM mode. */
765 #define MINIMUM_SLEEP_TIME 1
766 #define SUSPEND_THRESHOLD 300
768 static inline uint32_t
769 power_idle_heuristic(uint32_t zero_rx_packet_count)
771 /* If zero count is less than 100, sleep 1us */
772 if (zero_rx_packet_count < SUSPEND_THRESHOLD)
773 return MINIMUM_SLEEP_TIME;
774 /* If zero count is less than 1000, sleep 100 us which is the
775 minimum latency switching from C3/C6 to C0
778 return SUSPEND_THRESHOLD;
781 static inline enum freq_scale_hint_t
782 power_freq_scaleup_heuristic(unsigned lcore_id,
786 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
788 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
791 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
792 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
793 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
794 #define FREQ_UP_TREND1_ACC 1
795 #define FREQ_UP_TREND2_ACC 100
796 #define FREQ_UP_THRESHOLD 10000
798 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
799 stats[lcore_id].trend = 0;
801 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
802 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
803 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
804 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
806 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
807 stats[lcore_id].trend = 0;
815 * force polling thread sleep until one-shot rx interrupt triggers
824 sleep_until_rx_interrupt(int num, int lcore)
827 * we want to track when we are woken up by traffic so that we can go
828 * back to sleep again without log spamming. Avoid cache line sharing
829 * to prevent threads stepping on each others' toes.
833 } __rte_cache_aligned status[RTE_MAX_LCORE];
834 struct rte_epoll_event event[num];
840 if (status[lcore].wakeup) {
841 RTE_LOG(INFO, L3FWD_POWER,
842 "lcore %u sleeps until interrupt triggers\n",
846 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
847 for (i = 0; i < n; i++) {
848 data = event[i].epdata.data;
849 port_id = ((uintptr_t)data) >> CHAR_BIT;
850 queue_id = ((uintptr_t)data) &
851 RTE_LEN2MASK(CHAR_BIT, uint8_t);
852 RTE_LOG(INFO, L3FWD_POWER,
853 "lcore %u is waked up from rx interrupt on"
854 " port %d queue %d\n",
855 rte_lcore_id(), port_id, queue_id);
857 status[lcore].wakeup = n != 0;
862 static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
865 struct lcore_rx_queue *rx_queue;
869 for (i = 0; i < qconf->n_rx_queue; ++i) {
870 rx_queue = &(qconf->rx_queue_list[i]);
871 port_id = rx_queue->port_id;
872 queue_id = rx_queue->queue_id;
874 rte_spinlock_lock(&(locks[port_id]));
876 rte_eth_dev_rx_intr_enable(port_id, queue_id);
878 rte_eth_dev_rx_intr_disable(port_id, queue_id);
879 rte_spinlock_unlock(&(locks[port_id]));
883 static int event_register(struct lcore_conf *qconf)
885 struct lcore_rx_queue *rx_queue;
892 for (i = 0; i < qconf->n_rx_queue; ++i) {
893 rx_queue = &(qconf->rx_queue_list[i]);
894 portid = rx_queue->port_id;
895 queueid = rx_queue->queue_id;
896 data = portid << CHAR_BIT | queueid;
898 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
899 RTE_EPOLL_PER_THREAD,
901 (void *)((uintptr_t)data));
909 /* main processing loop */
910 static int main_intr_loop(__rte_unused void *dummy)
912 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
913 unsigned int lcore_id;
914 uint64_t prev_tsc, diff_tsc, cur_tsc;
918 struct lcore_conf *qconf;
919 struct lcore_rx_queue *rx_queue;
920 uint32_t lcore_rx_idle_count = 0;
921 uint32_t lcore_idle_hint = 0;
924 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
925 US_PER_S * BURST_TX_DRAIN_US;
929 lcore_id = rte_lcore_id();
930 qconf = &lcore_conf[lcore_id];
932 if (qconf->n_rx_queue == 0) {
933 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
938 RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
941 for (i = 0; i < qconf->n_rx_queue; i++) {
942 portid = qconf->rx_queue_list[i].port_id;
943 queueid = qconf->rx_queue_list[i].queue_id;
944 RTE_LOG(INFO, L3FWD_POWER,
945 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
946 lcore_id, portid, queueid);
949 /* add into event wait list */
950 if (event_register(qconf) == 0)
953 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
956 stats[lcore_id].nb_iteration_looped++;
958 cur_tsc = rte_rdtsc();
961 * TX burst queue drain
963 diff_tsc = cur_tsc - prev_tsc;
964 if (unlikely(diff_tsc > drain_tsc)) {
965 for (i = 0; i < qconf->n_tx_port; ++i) {
966 portid = qconf->tx_port_id[i];
967 rte_eth_tx_buffer_flush(portid,
968 qconf->tx_queue_id[portid],
969 qconf->tx_buffer[portid]);
976 * Read packet from RX queues
978 lcore_rx_idle_count = 0;
979 for (i = 0; i < qconf->n_rx_queue; ++i) {
980 rx_queue = &(qconf->rx_queue_list[i]);
981 rx_queue->idle_hint = 0;
982 portid = rx_queue->port_id;
983 queueid = rx_queue->queue_id;
985 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
988 stats[lcore_id].nb_rx_processed += nb_rx;
989 if (unlikely(nb_rx == 0)) {
991 * no packet received from rx queue, try to
992 * sleep for a while forcing CPU enter deeper
995 rx_queue->zero_rx_packet_count++;
997 if (rx_queue->zero_rx_packet_count <=
1001 rx_queue->idle_hint = power_idle_heuristic(
1002 rx_queue->zero_rx_packet_count);
1003 lcore_rx_idle_count++;
1005 rx_queue->zero_rx_packet_count = 0;
1008 /* Prefetch first packets */
1009 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1010 rte_prefetch0(rte_pktmbuf_mtod(
1011 pkts_burst[j], void *));
1014 /* Prefetch and forward already prefetched packets */
1015 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1016 rte_prefetch0(rte_pktmbuf_mtod(
1017 pkts_burst[j + PREFETCH_OFFSET],
1019 l3fwd_simple_forward(
1020 pkts_burst[j], portid, qconf);
1023 /* Forward remaining prefetched packets */
1024 for (; j < nb_rx; j++) {
1025 l3fwd_simple_forward(
1026 pkts_burst[j], portid, qconf);
1030 if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
1032 * All Rx queues empty in recent consecutive polls,
1033 * sleep in a conservative manner, meaning sleep as
1037 lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
1038 i < qconf->n_rx_queue; ++i) {
1039 rx_queue = &(qconf->rx_queue_list[i]);
1040 if (rx_queue->idle_hint < lcore_idle_hint)
1041 lcore_idle_hint = rx_queue->idle_hint;
1044 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1046 * execute "pause" instruction to avoid context
1047 * switch which generally take hundred of
1048 * microseconds for short sleep.
1050 rte_delay_us(lcore_idle_hint);
1052 /* suspend until rx interrupt triggers */
1054 turn_on_off_intr(qconf, 1);
1055 sleep_until_rx_interrupt(
1058 turn_on_off_intr(qconf, 0);
1060 * start receiving packets immediately
1062 if (likely(!is_done()))
1066 stats[lcore_id].sleep_time += lcore_idle_hint;
1073 /* main processing loop */
1075 main_telemetry_loop(__rte_unused void *dummy)
1077 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1078 unsigned int lcore_id;
1079 uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
1083 struct lcore_conf *qconf;
1084 struct lcore_rx_queue *rx_queue;
1085 uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
1086 uint64_t poll_count;
1089 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1090 US_PER_S * BURST_TX_DRAIN_US;
1096 lcore_id = rte_lcore_id();
1097 qconf = &lcore_conf[lcore_id];
1099 if (qconf->n_rx_queue == 0) {
1100 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1105 RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
1108 for (i = 0; i < qconf->n_rx_queue; i++) {
1109 portid = qconf->rx_queue_list[i].port_id;
1110 queueid = qconf->rx_queue_list[i].queue_id;
1111 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1112 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1115 while (!is_done()) {
1117 cur_tsc = rte_rdtsc();
1119 * TX burst queue drain
1121 diff_tsc = cur_tsc - prev_tsc;
1122 if (unlikely(diff_tsc > drain_tsc)) {
1123 for (i = 0; i < qconf->n_tx_port; ++i) {
1124 portid = qconf->tx_port_id[i];
1125 rte_eth_tx_buffer_flush(portid,
1126 qconf->tx_queue_id[portid],
1127 qconf->tx_buffer[portid]);
1133 * Read packet from RX queues
1135 for (i = 0; i < qconf->n_rx_queue; ++i) {
1136 rx_queue = &(qconf->rx_queue_list[i]);
1137 portid = rx_queue->port_id;
1138 queueid = rx_queue->queue_id;
1140 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1142 ep_nep[nb_rx == 0]++;
1143 fp_nfp[nb_rx == MAX_PKT_BURST]++;
1145 if (unlikely(nb_rx == 0))
1148 /* Prefetch first packets */
1149 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1150 rte_prefetch0(rte_pktmbuf_mtod(
1151 pkts_burst[j], void *));
1154 /* Prefetch and forward already prefetched packets */
1155 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1156 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1157 j + PREFETCH_OFFSET], void *));
1158 l3fwd_simple_forward(pkts_burst[j], portid,
1162 /* Forward remaining prefetched packets */
1163 for (; j < nb_rx; j++) {
1164 l3fwd_simple_forward(pkts_burst[j], portid,
1168 if (unlikely(poll_count >= DEFAULT_COUNT)) {
1169 diff_tsc = cur_tsc - prev_tel_tsc;
1170 if (diff_tsc >= MAX_CYCLES) {
1172 } else if (diff_tsc > MIN_CYCLES &&
1173 diff_tsc < MAX_CYCLES) {
1174 br = (diff_tsc * 100) / MAX_CYCLES;
1179 prev_tel_tsc = cur_tsc;
1180 /* update stats for telemetry */
1181 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
1182 stats[lcore_id].ep_nep[0] = ep_nep[0];
1183 stats[lcore_id].ep_nep[1] = ep_nep[1];
1184 stats[lcore_id].fp_nfp[0] = fp_nfp[0];
1185 stats[lcore_id].fp_nfp[1] = fp_nfp[1];
1186 stats[lcore_id].br = br;
1187 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
1193 /* main processing loop */
1195 main_empty_poll_loop(__rte_unused void *dummy)
1197 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1198 unsigned int lcore_id;
1199 uint64_t prev_tsc, diff_tsc, cur_tsc;
1203 struct lcore_conf *qconf;
1204 struct lcore_rx_queue *rx_queue;
1206 const uint64_t drain_tsc =
1207 (rte_get_tsc_hz() + US_PER_S - 1) /
1208 US_PER_S * BURST_TX_DRAIN_US;
1212 lcore_id = rte_lcore_id();
1213 qconf = &lcore_conf[lcore_id];
1215 if (qconf->n_rx_queue == 0) {
1216 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1221 for (i = 0; i < qconf->n_rx_queue; i++) {
1222 portid = qconf->rx_queue_list[i].port_id;
1223 queueid = qconf->rx_queue_list[i].queue_id;
1224 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1225 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1228 while (!is_done()) {
1229 stats[lcore_id].nb_iteration_looped++;
1231 cur_tsc = rte_rdtsc();
1233 * TX burst queue drain
1235 diff_tsc = cur_tsc - prev_tsc;
1236 if (unlikely(diff_tsc > drain_tsc)) {
1237 for (i = 0; i < qconf->n_tx_port; ++i) {
1238 portid = qconf->tx_port_id[i];
1239 rte_eth_tx_buffer_flush(portid,
1240 qconf->tx_queue_id[portid],
1241 qconf->tx_buffer[portid]);
1247 * Read packet from RX queues
1249 for (i = 0; i < qconf->n_rx_queue; ++i) {
1250 rx_queue = &(qconf->rx_queue_list[i]);
1251 rx_queue->idle_hint = 0;
1252 portid = rx_queue->port_id;
1253 queueid = rx_queue->queue_id;
1255 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1258 stats[lcore_id].nb_rx_processed += nb_rx;
1262 rte_power_empty_poll_stat_update(lcore_id);
1266 rte_power_poll_stat_update(lcore_id, nb_rx);
1270 /* Prefetch first packets */
1271 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1272 rte_prefetch0(rte_pktmbuf_mtod(
1273 pkts_burst[j], void *));
1276 /* Prefetch and forward already prefetched packets */
1277 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1278 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1279 j + PREFETCH_OFFSET],
1281 l3fwd_simple_forward(pkts_burst[j], portid,
1285 /* Forward remaining prefetched packets */
1286 for (; j < nb_rx; j++) {
1287 l3fwd_simple_forward(pkts_burst[j], portid,
1297 /* main processing loop */
1299 main_legacy_loop(__rte_unused void *dummy)
1301 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1303 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
1304 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
1308 struct lcore_conf *qconf;
1309 struct lcore_rx_queue *rx_queue;
1310 enum freq_scale_hint_t lcore_scaleup_hint;
1311 uint32_t lcore_rx_idle_count = 0;
1312 uint32_t lcore_idle_hint = 0;
1315 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
1318 hz = rte_get_timer_hz();
1319 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1321 lcore_id = rte_lcore_id();
1322 qconf = &lcore_conf[lcore_id];
1324 if (qconf->n_rx_queue == 0) {
1325 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1329 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1331 for (i = 0; i < qconf->n_rx_queue; i++) {
1332 portid = qconf->rx_queue_list[i].port_id;
1333 queueid = qconf->rx_queue_list[i].queue_id;
1334 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1335 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1338 /* add into event wait list */
1339 if (event_register(qconf) == 0)
1342 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1344 while (!is_done()) {
1345 stats[lcore_id].nb_iteration_looped++;
1347 cur_tsc = rte_rdtsc();
1348 cur_tsc_power = cur_tsc;
1351 * TX burst queue drain
1353 diff_tsc = cur_tsc - prev_tsc;
1354 if (unlikely(diff_tsc > drain_tsc)) {
1355 for (i = 0; i < qconf->n_tx_port; ++i) {
1356 portid = qconf->tx_port_id[i];
1357 rte_eth_tx_buffer_flush(portid,
1358 qconf->tx_queue_id[portid],
1359 qconf->tx_buffer[portid]);
1364 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1365 if (diff_tsc_power > tim_res_tsc) {
1367 prev_tsc_power = cur_tsc_power;
1372 * Read packet from RX queues
1374 lcore_scaleup_hint = FREQ_CURRENT;
1375 lcore_rx_idle_count = 0;
1376 for (i = 0; i < qconf->n_rx_queue; ++i) {
1377 rx_queue = &(qconf->rx_queue_list[i]);
1378 rx_queue->idle_hint = 0;
1379 portid = rx_queue->port_id;
1380 queueid = rx_queue->queue_id;
1382 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1385 stats[lcore_id].nb_rx_processed += nb_rx;
1386 if (unlikely(nb_rx == 0)) {
1388 * no packet received from rx queue, try to
1389 * sleep for a while forcing CPU enter deeper
1392 rx_queue->zero_rx_packet_count++;
1394 if (rx_queue->zero_rx_packet_count <=
1395 MIN_ZERO_POLL_COUNT)
1398 rx_queue->idle_hint = power_idle_heuristic(\
1399 rx_queue->zero_rx_packet_count);
1400 lcore_rx_idle_count++;
1402 rx_queue->zero_rx_packet_count = 0;
1405 * do not scale up frequency immediately as
1406 * user to kernel space communication is costly
1407 * which might impact packet I/O for received
1410 rx_queue->freq_up_hint =
1411 power_freq_scaleup_heuristic(lcore_id,
1415 /* Prefetch first packets */
1416 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1417 rte_prefetch0(rte_pktmbuf_mtod(
1418 pkts_burst[j], void *));
1421 /* Prefetch and forward already prefetched packets */
1422 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1423 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1424 j + PREFETCH_OFFSET], void *));
1425 l3fwd_simple_forward(pkts_burst[j], portid,
1429 /* Forward remaining prefetched packets */
1430 for (; j < nb_rx; j++) {
1431 l3fwd_simple_forward(pkts_burst[j], portid,
1436 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1437 for (i = 1, lcore_scaleup_hint =
1438 qconf->rx_queue_list[0].freq_up_hint;
1439 i < qconf->n_rx_queue; ++i) {
1440 rx_queue = &(qconf->rx_queue_list[i]);
1441 if (rx_queue->freq_up_hint >
1443 lcore_scaleup_hint =
1444 rx_queue->freq_up_hint;
1447 if (lcore_scaleup_hint == FREQ_HIGHEST) {
1448 if (rte_power_freq_max)
1449 rte_power_freq_max(lcore_id);
1450 } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1451 if (rte_power_freq_up)
1452 rte_power_freq_up(lcore_id);
1456 * All Rx queues empty in recent consecutive polls,
1457 * sleep in a conservative manner, meaning sleep as
1460 for (i = 1, lcore_idle_hint =
1461 qconf->rx_queue_list[0].idle_hint;
1462 i < qconf->n_rx_queue; ++i) {
1463 rx_queue = &(qconf->rx_queue_list[i]);
1464 if (rx_queue->idle_hint < lcore_idle_hint)
1465 lcore_idle_hint = rx_queue->idle_hint;
1468 if (lcore_idle_hint < SUSPEND_THRESHOLD)
1470 * execute "pause" instruction to avoid context
1471 * switch which generally take hundred of
1472 * microseconds for short sleep.
1474 rte_delay_us(lcore_idle_hint);
1476 /* suspend until rx interrupt triggers */
1478 turn_on_off_intr(qconf, 1);
1479 sleep_until_rx_interrupt(
1482 turn_on_off_intr(qconf, 0);
1484 * start receiving packets immediately
1486 if (likely(!is_done()))
1490 stats[lcore_id].sleep_time += lcore_idle_hint;
1498 check_lcore_params(void)
1500 uint8_t queue, lcore;
1504 for (i = 0; i < nb_lcore_params; ++i) {
1505 queue = lcore_params[i].queue_id;
1506 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1507 printf("invalid queue number: %hhu\n", queue);
1510 lcore = lcore_params[i].lcore_id;
1511 if (!rte_lcore_is_enabled(lcore)) {
1512 printf("error: lcore %hhu is not enabled in lcore "
1516 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1518 printf("warning: lcore %hhu is on socket %d with numa "
1519 "off\n", lcore, socketid);
1521 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
1522 printf("cannot enable main core %d in config for telemetry mode\n",
1531 check_port_config(void)
1536 for (i = 0; i < nb_lcore_params; ++i) {
1537 portid = lcore_params[i].port_id;
1538 if ((enabled_port_mask & (1 << portid)) == 0) {
1539 printf("port %u is not enabled in port mask\n",
1543 if (!rte_eth_dev_is_valid_port(portid)) {
1544 printf("port %u is not present on the board\n",
1553 get_port_n_rx_queues(const uint16_t port)
1558 for (i = 0; i < nb_lcore_params; ++i) {
1559 if (lcore_params[i].port_id == port &&
1560 lcore_params[i].queue_id > queue)
1561 queue = lcore_params[i].queue_id;
1563 return (uint8_t)(++queue);
1567 init_lcore_rx_queues(void)
1569 uint16_t i, nb_rx_queue;
1572 for (i = 0; i < nb_lcore_params; ++i) {
1573 lcore = lcore_params[i].lcore_id;
1574 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1575 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1576 printf("error: too many queues (%u) for lcore: %u\n",
1577 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1580 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1581 lcore_params[i].port_id;
1582 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1583 lcore_params[i].queue_id;
1584 lcore_conf[lcore].n_rx_queue++;
1592 print_usage(const char *prgname)
1594 printf ("%s [EAL options] -- -p PORTMASK -P"
1595 " [--config (port,queue,lcore)[,(port,queue,lcore]]"
1596 " [--high-perf-cores CORELIST"
1597 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1598 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1599 " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1600 " -P : enable promiscuous mode\n"
1601 " --config (port,queue,lcore): rx queues configuration\n"
1602 " --high-perf-cores CORELIST: list of high performance cores\n"
1603 " --perf-config: similar as config, cores specified as indices"
1604 " for bins containing high or regular performance cores\n"
1605 " --no-numa: optional, disable numa awareness\n"
1606 " --enable-jumbo: enable jumbo frame"
1607 " which max packet len is PKTLEN in decimal (64-9600)\n"
1608 " --parse-ptype: parse packet type by software\n"
1609 " --legacy: use legacy interrupt-based scaling\n"
1610 " --empty-poll: enable empty poll detection"
1611 " follow (training_flag, high_threshold, med_threshold)\n"
1612 " --telemetry: enable telemetry mode, to update"
1613 " empty polls, full polls, and core busyness to telemetry\n"
1614 " --interrupt-only: enable interrupt-only mode\n",
1618 static int parse_max_pkt_len(const char *pktlen)
1623 /* parse decimal string */
1624 len = strtoul(pktlen, &end, 10);
1625 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1635 parse_portmask(const char *portmask)
1640 /* parse hexadecimal string */
1641 pm = strtoul(portmask, &end, 16);
1642 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1649 parse_config(const char *q_arg)
1652 const char *p, *p0 = q_arg;
1660 unsigned long int_fld[_NUM_FLD];
1661 char *str_fld[_NUM_FLD];
1665 nb_lcore_params = 0;
1667 while ((p = strchr(p0,'(')) != NULL) {
1669 if((p0 = strchr(p,')')) == NULL)
1673 if(size >= sizeof(s))
1676 snprintf(s, sizeof(s), "%.*s", size, p);
1677 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1680 for (i = 0; i < _NUM_FLD; i++){
1682 int_fld[i] = strtoul(str_fld[i], &end, 0);
1683 if (errno != 0 || end == str_fld[i] || int_fld[i] >
1687 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1688 printf("exceeded max number of lcore params: %hu\n",
1692 lcore_params_array[nb_lcore_params].port_id =
1693 (uint8_t)int_fld[FLD_PORT];
1694 lcore_params_array[nb_lcore_params].queue_id =
1695 (uint8_t)int_fld[FLD_QUEUE];
1696 lcore_params_array[nb_lcore_params].lcore_id =
1697 (uint8_t)int_fld[FLD_LCORE];
1700 lcore_params = lcore_params_array;
1705 parse_ep_config(const char *q_arg)
1708 const char *p = q_arg;
1718 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1719 ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD;
1721 strlcpy(s, p, sizeof(s));
1723 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1725 empty_poll_train = false;
1732 training_flag = strtoul(str_fld[0], &end, 0);
1733 med_edpi = strtoul(str_fld[1], &end, 0);
1734 hgh_edpi = strtoul(str_fld[2], &end, 0);
1736 if (training_flag == 1)
1737 empty_poll_train = true;
1740 ep_med_edpi = med_edpi;
1743 ep_hgh_edpi = hgh_edpi;
1753 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1754 #define CMD_LINE_OPT_LEGACY "legacy"
1755 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
1756 #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
1757 #define CMD_LINE_OPT_TELEMETRY "telemetry"
1759 /* Parse the argument given in the command line of the application */
1761 parse_args(int argc, char **argv)
1767 char *prgname = argv[0];
1768 static struct option lgopts[] = {
1769 {"config", 1, 0, 0},
1770 {"perf-config", 1, 0, 0},
1771 {"high-perf-cores", 1, 0, 0},
1772 {"no-numa", 0, 0, 0},
1773 {"enable-jumbo", 0, 0, 0},
1774 {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
1775 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1776 {CMD_LINE_OPT_LEGACY, 0, 0, 0},
1777 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
1778 {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
1784 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1785 lgopts, &option_index)) != EOF) {
1790 enabled_port_mask = parse_portmask(optarg);
1791 if (enabled_port_mask == 0) {
1792 printf("invalid portmask\n");
1793 print_usage(prgname);
1798 printf("Promiscuous mode selected\n");
1802 limit = parse_max_pkt_len(optarg);
1803 freq_tlb[LOW] = limit;
1806 limit = parse_max_pkt_len(optarg);
1807 freq_tlb[MED] = limit;
1810 limit = parse_max_pkt_len(optarg);
1811 freq_tlb[HGH] = limit;
1815 if (!strncmp(lgopts[option_index].name, "config", 6)) {
1816 ret = parse_config(optarg);
1818 printf("invalid config\n");
1819 print_usage(prgname);
1824 if (!strncmp(lgopts[option_index].name,
1825 "perf-config", 11)) {
1826 ret = parse_perf_config(optarg);
1828 printf("invalid perf-config\n");
1829 print_usage(prgname);
1834 if (!strncmp(lgopts[option_index].name,
1835 "high-perf-cores", 15)) {
1836 ret = parse_perf_core_list(optarg);
1838 printf("invalid high-perf-cores\n");
1839 print_usage(prgname);
1844 if (!strncmp(lgopts[option_index].name,
1846 printf("numa is disabled \n");
1850 if (!strncmp(lgopts[option_index].name,
1851 CMD_LINE_OPT_LEGACY,
1852 sizeof(CMD_LINE_OPT_LEGACY))) {
1853 if (app_mode != APP_MODE_DEFAULT) {
1854 printf(" legacy mode is mutually exclusive with other modes\n");
1857 app_mode = APP_MODE_LEGACY;
1858 printf("legacy mode is enabled\n");
1861 if (!strncmp(lgopts[option_index].name,
1862 CMD_LINE_OPT_EMPTY_POLL, 10)) {
1863 if (app_mode != APP_MODE_DEFAULT) {
1864 printf(" empty-poll mode is mutually exclusive with other modes\n");
1867 app_mode = APP_MODE_EMPTY_POLL;
1868 ret = parse_ep_config(optarg);
1871 printf("invalid empty poll config\n");
1872 print_usage(prgname);
1875 printf("empty-poll is enabled\n");
1878 if (!strncmp(lgopts[option_index].name,
1879 CMD_LINE_OPT_TELEMETRY,
1880 sizeof(CMD_LINE_OPT_TELEMETRY))) {
1881 if (app_mode != APP_MODE_DEFAULT) {
1882 printf(" telemetry mode is mutually exclusive with other modes\n");
1885 app_mode = APP_MODE_TELEMETRY;
1886 printf("telemetry mode is enabled\n");
1889 if (!strncmp(lgopts[option_index].name,
1890 CMD_LINE_OPT_INTERRUPT_ONLY,
1891 sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
1892 if (app_mode != APP_MODE_DEFAULT) {
1893 printf(" interrupt-only mode is mutually exclusive with other modes\n");
1896 app_mode = APP_MODE_INTERRUPT;
1897 printf("interrupt-only mode is enabled\n");
1900 if (!strncmp(lgopts[option_index].name,
1901 "enable-jumbo", 12)) {
1902 struct option lenopts =
1903 {"max-pkt-len", required_argument, \
1906 printf("jumbo frame is enabled \n");
1907 port_conf.rxmode.offloads |=
1908 DEV_RX_OFFLOAD_JUMBO_FRAME;
1909 port_conf.txmode.offloads |=
1910 DEV_TX_OFFLOAD_MULTI_SEGS;
1913 * if no max-pkt-len set, use the default value
1916 if (0 == getopt_long(argc, argvopt, "",
1917 &lenopts, &option_index)) {
1918 ret = parse_max_pkt_len(optarg);
1920 (ret > MAX_JUMBO_PKT_LEN)){
1921 printf("invalid packet "
1923 print_usage(prgname);
1926 port_conf.rxmode.max_rx_pkt_len = ret;
1928 printf("set jumbo frame "
1929 "max packet length to %u\n",
1930 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1933 if (!strncmp(lgopts[option_index].name,
1934 CMD_LINE_OPT_PARSE_PTYPE,
1935 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1936 printf("soft parse-ptype is enabled\n");
1943 print_usage(prgname);
1949 argv[optind-1] = prgname;
1952 optind = 1; /* reset getopt lib */
1957 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
1959 char buf[RTE_ETHER_ADDR_FMT_SIZE];
1960 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
1961 printf("%s%s", name, buf);
1964 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1966 setup_hash(int socketid)
1968 struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1970 .entries = L3FWD_HASH_ENTRIES,
1971 .key_len = sizeof(struct ipv4_5tuple),
1972 .hash_func = DEFAULT_HASH_FUNC,
1973 .hash_func_init_val = 0,
1976 struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1978 .entries = L3FWD_HASH_ENTRIES,
1979 .key_len = sizeof(struct ipv6_5tuple),
1980 .hash_func = DEFAULT_HASH_FUNC,
1981 .hash_func_init_val = 0,
1988 /* create ipv4 hash */
1989 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1990 ipv4_l3fwd_hash_params.name = s;
1991 ipv4_l3fwd_hash_params.socket_id = socketid;
1992 ipv4_l3fwd_lookup_struct[socketid] =
1993 rte_hash_create(&ipv4_l3fwd_hash_params);
1994 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1995 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1996 "socket %d\n", socketid);
1998 /* create ipv6 hash */
1999 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
2000 ipv6_l3fwd_hash_params.name = s;
2001 ipv6_l3fwd_hash_params.socket_id = socketid;
2002 ipv6_l3fwd_lookup_struct[socketid] =
2003 rte_hash_create(&ipv6_l3fwd_hash_params);
2004 if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
2005 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2006 "socket %d\n", socketid);
2009 /* populate the ipv4 hash */
2010 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2011 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
2012 (void *) &ipv4_l3fwd_route_array[i].key);
2014 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2015 "l3fwd hash on socket %d\n", i, socketid);
2017 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
2018 printf("Hash: Adding key\n");
2019 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
2022 /* populate the ipv6 hash */
2023 for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
2024 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
2025 (void *) &ipv6_l3fwd_route_array[i].key);
2027 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2028 "l3fwd hash on socket %d\n", i, socketid);
2030 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
2031 printf("Hash: Adding key\n");
2032 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
2037 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2039 setup_lpm(int socketid)
2045 /* create the LPM table */
2046 struct rte_lpm_config lpm_ipv4_config;
2048 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
2049 lpm_ipv4_config.number_tbl8s = 256;
2050 lpm_ipv4_config.flags = 0;
2052 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
2053 ipv4_l3fwd_lookup_struct[socketid] =
2054 rte_lpm_create(s, socketid, &lpm_ipv4_config);
2055 if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2056 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
2057 " on socket %d\n", socketid);
2059 /* populate the LPM table */
2060 for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2061 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
2062 ipv4_l3fwd_route_array[i].ip,
2063 ipv4_l3fwd_route_array[i].depth,
2064 ipv4_l3fwd_route_array[i].if_out);
2067 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
2068 "l3fwd LPM table on socket %d\n",
2072 printf("LPM: Adding route 0x%08x / %d (%d)\n",
2073 (unsigned)ipv4_l3fwd_route_array[i].ip,
2074 ipv4_l3fwd_route_array[i].depth,
2075 ipv4_l3fwd_route_array[i].if_out);
2081 init_mem(unsigned nb_mbuf)
2083 struct lcore_conf *qconf;
2088 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2089 if (rte_lcore_is_enabled(lcore_id) == 0)
2093 socketid = rte_lcore_to_socket_id(lcore_id);
2097 if (socketid >= NB_SOCKETS) {
2098 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
2099 "out of range %d\n", socketid,
2100 lcore_id, NB_SOCKETS);
2102 if (pktmbuf_pool[socketid] == NULL) {
2103 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
2104 pktmbuf_pool[socketid] =
2105 rte_pktmbuf_pool_create(s, nb_mbuf,
2106 MEMPOOL_CACHE_SIZE, 0,
2107 RTE_MBUF_DEFAULT_BUF_SIZE,
2109 if (pktmbuf_pool[socketid] == NULL)
2110 rte_exit(EXIT_FAILURE,
2111 "Cannot init mbuf pool on socket %d\n",
2114 printf("Allocated mbuf pool on socket %d\n",
2117 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2118 setup_lpm(socketid);
2120 setup_hash(socketid);
2123 qconf = &lcore_conf[lcore_id];
2124 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
2125 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2126 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
2132 /* Check the link status of all ports in up to 9s, and print them finally */
2134 check_all_ports_link_status(uint32_t port_mask)
2136 #define CHECK_INTERVAL 100 /* 100ms */
2137 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
2138 uint8_t count, all_ports_up, print_flag = 0;
2140 struct rte_eth_link link;
2142 char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
2144 printf("\nChecking link status");
2146 for (count = 0; count <= MAX_CHECK_TIME; count++) {
2148 RTE_ETH_FOREACH_DEV(portid) {
2149 if ((port_mask & (1 << portid)) == 0)
2151 memset(&link, 0, sizeof(link));
2152 ret = rte_eth_link_get_nowait(portid, &link);
2155 if (print_flag == 1)
2156 printf("Port %u link get failed: %s\n",
2157 portid, rte_strerror(-ret));
2160 /* print link status if flag set */
2161 if (print_flag == 1) {
2162 rte_eth_link_to_str(link_status_text,
2163 sizeof(link_status_text), &link);
2164 printf("Port %d %s\n", portid,
2168 /* clear all_ports_up flag if any link down */
2169 if (link.link_status == ETH_LINK_DOWN) {
2174 /* after finally printing all link status, get out */
2175 if (print_flag == 1)
2178 if (all_ports_up == 0) {
2181 rte_delay_ms(CHECK_INTERVAL);
2184 /* set the print_flag if all ports up or timeout */
2185 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
2192 static int check_ptype(uint16_t portid)
2195 int ptype_l3_ipv4 = 0;
2196 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2197 int ptype_l3_ipv6 = 0;
2199 uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
2201 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
2205 uint32_t ptypes[ret];
2207 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
2208 for (i = 0; i < ret; ++i) {
2209 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
2211 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2212 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
2217 if (ptype_l3_ipv4 == 0)
2218 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
2220 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2221 if (ptype_l3_ipv6 == 0)
2222 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
2225 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2227 #else /* APP_LOOKUP_EXACT_MATCH */
2228 if (ptype_l3_ipv4 && ptype_l3_ipv6)
2237 init_power_library(void)
2239 enum power_management_env env;
2240 unsigned int lcore_id;
2243 RTE_LCORE_FOREACH(lcore_id) {
2244 /* init power management library */
2245 ret = rte_power_init(lcore_id);
2248 "Library initialization failed on core %u\n",
2252 /* we're not supporting the VM channel mode */
2253 env = rte_power_get_env();
2254 if (env != PM_ENV_ACPI_CPUFREQ &&
2255 env != PM_ENV_PSTATE_CPUFREQ) {
2257 "Only ACPI and PSTATE mode are supported\n");
2265 deinit_power_library(void)
2267 unsigned int lcore_id;
2270 RTE_LCORE_FOREACH(lcore_id) {
2271 /* deinit power management library */
2272 ret = rte_power_exit(lcore_id);
2275 "Library deinitialization failed on core %u\n",
2284 get_current_stat_values(uint64_t *values)
2286 unsigned int lcore_id = rte_lcore_id();
2287 struct lcore_conf *qconf;
2288 uint64_t app_eps = 0, app_fps = 0, app_br = 0;
2291 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2292 qconf = &lcore_conf[lcore_id];
2293 if (qconf->n_rx_queue == 0)
2296 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
2297 app_eps += stats[lcore_id].ep_nep[1];
2298 app_fps += stats[lcore_id].fp_nfp[1];
2299 app_br += stats[lcore_id].br;
2300 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
2304 values[0] = app_eps/count;
2305 values[1] = app_fps/count;
2306 values[2] = app_br/count;
2308 memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
2313 update_telemetry(__rte_unused struct rte_timer *tim,
2314 __rte_unused void *arg)
2317 uint64_t values[NUM_TELSTATS] = {0};
2319 get_current_stat_values(values);
2320 ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
2321 values, RTE_DIM(values));
2323 RTE_LOG(WARNING, POWER, "failed to update metrcis\n");
2327 handle_app_stats(const char *cmd __rte_unused,
2328 const char *params __rte_unused,
2329 struct rte_tel_data *d)
2331 uint64_t values[NUM_TELSTATS] = {0};
2334 rte_tel_data_start_dict(d);
2335 get_current_stat_values(values);
2336 for (i = 0; i < NUM_TELSTATS; i++)
2337 rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
2343 telemetry_setup_timer(void)
2345 int lcore_id = rte_lcore_id();
2346 uint64_t hz = rte_get_timer_hz();
2349 ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
2350 rte_timer_reset_sync(&telemetry_timer,
2358 empty_poll_setup_timer(void)
2360 int lcore_id = rte_lcore_id();
2361 uint64_t hz = rte_get_timer_hz();
2363 struct ep_params *ep_ptr = ep_params;
2365 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
2367 rte_timer_reset_sync(&ep_ptr->timer0,
2368 ep_ptr->interval_ticks,
2371 rte_empty_poll_detection,
2376 launch_timer(unsigned int lcore_id)
2378 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
2380 RTE_SET_USED(lcore_id);
2383 if (rte_get_main_lcore() != lcore_id) {
2384 rte_panic("timer on lcore:%d which is not main core:%d\n",
2386 rte_get_main_lcore());
2389 RTE_LOG(INFO, POWER, "Bring up the Timer\n");
2391 if (app_mode == APP_MODE_EMPTY_POLL)
2392 empty_poll_setup_timer();
2394 telemetry_setup_timer();
2396 cycles_10ms = rte_get_timer_hz() / 100;
2398 while (!is_done()) {
2399 cur_tsc = rte_rdtsc();
2400 diff_tsc = cur_tsc - prev_tsc;
2401 if (diff_tsc > cycles_10ms) {
2404 cycles_10ms = rte_get_timer_hz() / 100;
2408 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
2414 autodetect_mode(void)
2416 RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
2419 * Empty poll and telemetry modes have to be specifically requested to
2420 * be enabled, but we can auto-detect between interrupt mode with or
2421 * without frequency scaling. Both ACPI and pstate can be used.
2423 if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
2424 return APP_MODE_LEGACY;
2425 if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
2426 return APP_MODE_LEGACY;
2428 RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
2430 return APP_MODE_INTERRUPT;
2434 mode_to_str(enum appmode mode)
2437 case APP_MODE_LEGACY:
2439 case APP_MODE_EMPTY_POLL:
2440 return "empty poll";
2441 case APP_MODE_TELEMETRY:
2443 case APP_MODE_INTERRUPT:
2444 return "interrupt-only";
2451 main(int argc, char **argv)
2453 struct lcore_conf *qconf;
2454 struct rte_eth_dev_info dev_info;
2455 struct rte_eth_txconf *txconf;
2461 uint32_t n_tx_queue, nb_lcores;
2462 uint32_t dev_rxq_num, dev_txq_num;
2463 uint8_t nb_rx_queue, queue, socketid;
2465 const char *ptr_strings[NUM_TELSTATS];
2467 /* catch SIGINT and restore cpufreq governor to ondemand */
2468 signal(SIGINT, signal_exit_now);
2471 ret = rte_eal_init(argc, argv);
2473 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
2477 /* init RTE timer library to be used late */
2478 rte_timer_subsystem_init();
2480 /* parse application arguments (after the EAL ones) */
2481 ret = parse_args(argc, argv);
2483 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
2485 if (app_mode == APP_MODE_DEFAULT)
2486 app_mode = autodetect_mode();
2488 RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
2489 mode_to_str(app_mode));
2491 /* only legacy and empty poll mode rely on power library */
2492 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2493 init_power_library())
2494 rte_exit(EXIT_FAILURE, "init_power_library failed\n");
2496 if (update_lcore_params() < 0)
2497 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
2499 if (check_lcore_params() < 0)
2500 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
2502 ret = init_lcore_rx_queues();
2504 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
2506 nb_ports = rte_eth_dev_count_avail();
2508 if (check_port_config() < 0)
2509 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
2511 nb_lcores = rte_lcore_count();
2513 /* initialize all ports */
2514 RTE_ETH_FOREACH_DEV(portid) {
2515 struct rte_eth_conf local_port_conf = port_conf;
2516 /* not all app modes need interrupts */
2517 bool need_intr = app_mode == APP_MODE_LEGACY ||
2518 app_mode == APP_MODE_INTERRUPT;
2520 /* skip ports that are not enabled */
2521 if ((enabled_port_mask & (1 << portid)) == 0) {
2522 printf("\nSkipping disabled port %d\n", portid);
2527 printf("Initializing port %d ... ", portid );
2530 ret = rte_eth_dev_info_get(portid, &dev_info);
2532 rte_exit(EXIT_FAILURE,
2533 "Error during getting device (port %u) info: %s\n",
2534 portid, strerror(-ret));
2536 dev_rxq_num = dev_info.max_rx_queues;
2537 dev_txq_num = dev_info.max_tx_queues;
2539 nb_rx_queue = get_port_n_rx_queues(portid);
2540 if (nb_rx_queue > dev_rxq_num)
2541 rte_exit(EXIT_FAILURE,
2542 "Cannot configure not existed rxq: "
2543 "port=%d\n", portid);
2545 n_tx_queue = nb_lcores;
2546 if (n_tx_queue > dev_txq_num)
2547 n_tx_queue = dev_txq_num;
2548 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2549 nb_rx_queue, (unsigned)n_tx_queue );
2550 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2551 if (nb_rx_queue == 0)
2555 local_port_conf.intr_conf.rxq = 1;
2557 ret = rte_eth_dev_info_get(portid, &dev_info);
2559 rte_exit(EXIT_FAILURE,
2560 "Error during getting device (port %u) info: %s\n",
2561 portid, strerror(-ret));
2563 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
2564 local_port_conf.txmode.offloads |=
2565 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
2567 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2568 dev_info.flow_type_rss_offloads;
2569 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2570 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2571 printf("Port %u modified RSS hash function based on hardware support,"
2572 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2574 port_conf.rx_adv_conf.rss_conf.rss_hf,
2575 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2578 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2579 (uint16_t)n_tx_queue, &local_port_conf);
2581 rte_exit(EXIT_FAILURE, "Cannot configure device: "
2582 "err=%d, port=%d\n", ret, portid);
2584 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2587 rte_exit(EXIT_FAILURE,
2588 "Cannot adjust number of descriptors: err=%d, port=%d\n",
2591 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2593 rte_exit(EXIT_FAILURE,
2594 "Cannot get MAC address: err=%d, port=%d\n",
2597 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2601 ret = init_mem(NB_MBUF);
2603 rte_exit(EXIT_FAILURE, "init_mem failed\n");
2605 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2606 if (rte_lcore_is_enabled(lcore_id) == 0)
2609 /* Initialize TX buffers */
2610 qconf = &lcore_conf[lcore_id];
2611 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2612 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2613 rte_eth_dev_socket_id(portid));
2614 if (qconf->tx_buffer[portid] == NULL)
2615 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2618 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2621 /* init one TX queue per couple (lcore,port) */
2623 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2624 if (rte_lcore_is_enabled(lcore_id) == 0)
2627 if (queueid >= dev_txq_num)
2632 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2636 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2639 txconf = &dev_info.default_txconf;
2640 txconf->offloads = local_port_conf.txmode.offloads;
2641 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2644 rte_exit(EXIT_FAILURE,
2645 "rte_eth_tx_queue_setup: err=%d, "
2646 "port=%d\n", ret, portid);
2648 qconf = &lcore_conf[lcore_id];
2649 qconf->tx_queue_id[portid] = queueid;
2652 qconf->tx_port_id[qconf->n_tx_port] = portid;
2658 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2659 if (rte_lcore_is_enabled(lcore_id) == 0)
2662 if (app_mode == APP_MODE_LEGACY) {
2663 /* init timer structures for each enabled lcore */
2664 rte_timer_init(&power_timers[lcore_id]);
2665 hz = rte_get_timer_hz();
2666 rte_timer_reset(&power_timers[lcore_id],
2667 hz/TIMER_NUMBER_PER_SECOND,
2669 power_timer_cb, NULL);
2671 qconf = &lcore_conf[lcore_id];
2672 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2674 /* init RX queues */
2675 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2676 struct rte_eth_rxconf rxq_conf;
2678 portid = qconf->rx_queue_list[queue].port_id;
2679 queueid = qconf->rx_queue_list[queue].queue_id;
2683 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2687 printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2690 ret = rte_eth_dev_info_get(portid, &dev_info);
2692 rte_exit(EXIT_FAILURE,
2693 "Error during getting device (port %u) info: %s\n",
2694 portid, strerror(-ret));
2696 rxq_conf = dev_info.default_rxconf;
2697 rxq_conf.offloads = port_conf.rxmode.offloads;
2698 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2699 socketid, &rxq_conf,
2700 pktmbuf_pool[socketid]);
2702 rte_exit(EXIT_FAILURE,
2703 "rte_eth_rx_queue_setup: err=%d, "
2704 "port=%d\n", ret, portid);
2707 if (add_cb_parse_ptype(portid, queueid) < 0)
2708 rte_exit(EXIT_FAILURE,
2709 "Fail to add ptype cb\n");
2717 RTE_ETH_FOREACH_DEV(portid) {
2718 if ((enabled_port_mask & (1 << portid)) == 0) {
2722 ret = rte_eth_dev_start(portid);
2724 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2725 "port=%d\n", ret, portid);
2727 * If enabled, put device in promiscuous mode.
2728 * This allows IO forwarding mode to forward packets
2729 * to itself through 2 cross-connected ports of the
2732 if (promiscuous_on) {
2733 ret = rte_eth_promiscuous_enable(portid);
2735 rte_exit(EXIT_FAILURE,
2736 "rte_eth_promiscuous_enable: err=%s, port=%u\n",
2737 rte_strerror(-ret), portid);
2739 /* initialize spinlock for each port */
2740 rte_spinlock_init(&(locks[portid]));
2743 if (!check_ptype(portid))
2744 rte_exit(EXIT_FAILURE,
2745 "PMD can not provide needed ptypes\n");
2748 check_all_ports_link_status(enabled_port_mask);
2750 if (app_mode == APP_MODE_EMPTY_POLL) {
2752 if (empty_poll_train) {
2753 policy.state = TRAINING;
2755 policy.state = MED_NORMAL;
2756 policy.med_base_edpi = ep_med_edpi;
2757 policy.hgh_base_edpi = ep_hgh_edpi;
2760 ret = rte_power_empty_poll_stat_init(&ep_params,
2764 rte_exit(EXIT_FAILURE, "empty poll init failed");
2768 /* launch per-lcore init on every lcore */
2769 if (app_mode == APP_MODE_LEGACY) {
2770 rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN);
2771 } else if (app_mode == APP_MODE_EMPTY_POLL) {
2772 empty_poll_stop = false;
2773 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2775 } else if (app_mode == APP_MODE_TELEMETRY) {
2778 /* Init metrics library */
2779 rte_metrics_init(rte_socket_id());
2780 /** Register stats with metrics library */
2781 for (i = 0; i < NUM_TELSTATS; i++)
2782 ptr_strings[i] = telstats_strings[i].name;
2784 ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
2786 telstats_index = ret;
2788 rte_exit(EXIT_FAILURE, "failed to register metrics names");
2790 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2791 rte_spinlock_init(&stats[lcore_id].telemetry_lock);
2793 rte_timer_init(&telemetry_timer);
2794 rte_telemetry_register_cmd("/l3fwd-power/stats",
2796 "Returns global power stats. Parameters: None");
2797 rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
2799 } else if (app_mode == APP_MODE_INTERRUPT) {
2800 rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN);
2803 if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
2804 launch_timer(rte_lcore_id());
2806 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2807 if (rte_eal_wait_lcore(lcore_id) < 0)
2811 RTE_ETH_FOREACH_DEV(portid)
2813 if ((enabled_port_mask & (1 << portid)) == 0)
2816 ret = rte_eth_dev_stop(portid);
2818 RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n",
2821 rte_eth_dev_close(portid);
2824 if (app_mode == APP_MODE_EMPTY_POLL)
2825 rte_power_empty_poll_stat_free();
2827 if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2828 deinit_power_library())
2829 rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
2831 if (rte_eal_cleanup() < 0)
2832 RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");