/* SPDX-License-Identifier: BSD-3-Clause * Copyright(c) 2010-2014 Intel Corporation */ #include #include #include #include #include #include #include #include #include #include "packet_burst_generator.h" #include "test.h" #define NB_ETHPORTS_USED (1) #define NB_SOCKETS (2) #define MEMPOOL_CACHE_SIZE 250 #define MAX_PKT_BURST (32) #define RTE_TEST_RX_DESC_DEFAULT (1024) #define RTE_TEST_TX_DESC_DEFAULT (1024) #define RTE_PORT_ALL (~(uint16_t)0x0) /* how long test would take at full line rate */ #define RTE_TEST_DURATION (2) /* * RX and TX Prefetch, Host, and Write-back threshold values should be * carefully set for optimal performance. Consult the network * controller's datasheet and supporting DPDK documentation for guidance * on how these parameters should be set. */ #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */ #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */ #define RX_WTHRESH 0 /**< Default values of RX write-back threshold reg. */ /* * These default values are optimized for use with the Intel(R) 82599 10 GbE * Controller and the DPDK ixgbe PMD. Consider using other values for other * network controllers and/or network drivers. */ #define TX_PTHRESH 32 /**< Default values of TX prefetch threshold reg. */ #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */ #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */ #define MAX_TRAFFIC_BURST 2048 #define NB_MBUF RTE_MAX( \ (unsigned)(nb_ports*nb_rx_queue*nb_rxd + \ nb_ports*nb_lcores*MAX_PKT_BURST + \ nb_ports*nb_tx_queue*nb_txd + \ nb_lcores*MEMPOOL_CACHE_SIZE + \ nb_ports*MAX_TRAFFIC_BURST), \ (unsigned)8192) static struct rte_mempool *mbufpool[NB_SOCKETS]; /* ethernet addresses of ports */ static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS]; static struct rte_eth_conf port_conf = { .rxmode = { .mq_mode = ETH_MQ_RX_NONE, .max_rx_pkt_len = RTE_ETHER_MAX_LEN, .split_hdr_size = 0, }, .txmode = { .mq_mode = ETH_MQ_TX_NONE, }, .lpbk_mode = 1, /* enable loopback */ }; static struct rte_eth_rxconf rx_conf = { .rx_thresh = { .pthresh = RX_PTHRESH, .hthresh = RX_HTHRESH, .wthresh = RX_WTHRESH, }, .rx_free_thresh = 32, }; static struct rte_eth_txconf tx_conf = { .tx_thresh = { .pthresh = TX_PTHRESH, .hthresh = TX_HTHRESH, .wthresh = TX_WTHRESH, }, .tx_free_thresh = 32, /* Use PMD default values */ .tx_rs_thresh = 32, /* Use PMD default values */ }; enum { LCORE_INVALID = 0, LCORE_AVAIL, LCORE_USED, }; struct lcore_conf { uint8_t status; uint8_t socketid; uint16_t nb_ports; uint16_t portlist[RTE_MAX_ETHPORTS]; } __rte_cache_aligned; struct lcore_conf lcore_conf[RTE_MAX_LCORE]; static uint64_t link_mbps; enum { SC_CONTINUOUS = 0, SC_BURST_POLL_FIRST, SC_BURST_XMIT_FIRST, }; static uint32_t sc_flag; /* Check the link status of all ports in up to 3s, and print them finally */ static void check_all_ports_link_status(uint16_t port_num, uint32_t port_mask) { #define CHECK_INTERVAL 100 /* 100ms */ #define MAX_CHECK_TIME 30 /* 3s (30 * 100ms) in total */ uint16_t portid; uint8_t count, all_ports_up, print_flag = 0; struct rte_eth_link link; int ret; printf("Checking link statuses...\n"); fflush(stdout); for (count = 0; count <= MAX_CHECK_TIME; count++) { all_ports_up = 1; for (portid = 0; portid < port_num; portid++) { if ((port_mask & (1 << portid)) == 0) continue; memset(&link, 0, sizeof(link)); ret = rte_eth_link_get_nowait(portid, &link); if (ret < 0) { all_ports_up = 0; if (print_flag == 1) printf("Port %u link get failed: %s\n", portid, rte_strerror(-ret)); continue; } /* print link status if flag set */ if (print_flag == 1) { if (link.link_status) { printf( "Port%d Link Up. Speed %u Mbps - %s\n", portid, link.link_speed, (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? ("full-duplex") : ("half-duplex")); if (link_mbps == 0) link_mbps = link.link_speed; } else printf("Port %d Link Down\n", portid); continue; } /* clear all_ports_up flag if any link down */ if (link.link_status == ETH_LINK_DOWN) { all_ports_up = 0; break; } } /* after finally printing all link status, get out */ if (print_flag == 1) break; if (all_ports_up == 0) { fflush(stdout); rte_delay_ms(CHECK_INTERVAL); } /* set the print_flag if all ports up or timeout */ if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) print_flag = 1; } } static void print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr) { char buf[RTE_ETHER_ADDR_FMT_SIZE]; rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr); printf("%s%s", name, buf); } static int init_traffic(struct rte_mempool *mp, struct rte_mbuf **pkts_burst, uint32_t burst_size) { struct rte_ether_hdr pkt_eth_hdr; struct rte_ipv4_hdr pkt_ipv4_hdr; struct rte_udp_hdr pkt_udp_hdr; uint32_t pktlen; static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF }; static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA }; initialize_eth_header(&pkt_eth_hdr, (struct rte_ether_addr *)src_mac, (struct rte_ether_addr *)dst_mac, RTE_ETHER_TYPE_IPV4, 0, 0); pktlen = initialize_ipv4_header(&pkt_ipv4_hdr, IPV4_ADDR(10, 0, 0, 1), IPV4_ADDR(10, 0, 0, 2), 26); printf("IPv4 pktlen %u\n", pktlen); pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18); printf("UDP pktlen %u\n", pktlen); return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr, 0, &pkt_ipv4_hdr, 1, &pkt_udp_hdr, burst_size, PACKET_BURST_GEN_PKT_LEN, 1); } static int init_lcores(void) { unsigned lcore_id; for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { lcore_conf[lcore_id].socketid = rte_lcore_to_socket_id(lcore_id); if (rte_lcore_is_enabled(lcore_id) == 0) { lcore_conf[lcore_id].status = LCORE_INVALID; continue; } else lcore_conf[lcore_id].status = LCORE_AVAIL; } return 0; } static int init_mbufpool(unsigned nb_mbuf) { int socketid; unsigned lcore_id; char s[64]; for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { if (rte_lcore_is_enabled(lcore_id) == 0) continue; socketid = rte_lcore_to_socket_id(lcore_id); if (socketid >= NB_SOCKETS) { rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n", socketid, lcore_id, NB_SOCKETS); } if (mbufpool[socketid] == NULL) { snprintf(s, sizeof(s), "mbuf_pool_%d", socketid); mbufpool[socketid] = rte_pktmbuf_pool_create(s, nb_mbuf, MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, socketid); if (mbufpool[socketid] == NULL) rte_exit(EXIT_FAILURE, "Cannot init mbuf pool on socket %d\n", socketid); else printf("Allocated mbuf pool on socket %d\n", socketid); } } return 0; } static uint16_t alloc_lcore(uint16_t socketid) { unsigned lcore_id; for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { if (LCORE_AVAIL != lcore_conf[lcore_id].status || lcore_conf[lcore_id].socketid != socketid || lcore_id == rte_get_master_lcore()) continue; lcore_conf[lcore_id].status = LCORE_USED; lcore_conf[lcore_id].nb_ports = 0; return lcore_id; } return (uint16_t)-1; } static volatile uint64_t stop; static uint64_t count; static uint64_t drop; static uint64_t idle; static void reset_count(void) { count = 0; drop = 0; idle = 0; } static void stats_display(uint16_t port_id) { struct rte_eth_stats stats; rte_eth_stats_get(port_id, &stats); printf(" RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes: " "%-"PRIu64"\n", stats.ipackets, stats.imissed, stats.ibytes); printf(" RX-errors: %-10"PRIu64" RX-nombuf: %-10"PRIu64"\n", stats.ierrors, stats.rx_nombuf); printf(" TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes: " "%-"PRIu64"\n", stats.opackets, stats.oerrors, stats.obytes); } static void signal_handler(int signum) { /* USR1 signal, stop testing */ if (signum == SIGUSR1) { printf("Force Stop!\n"); stop = 1; } /* USR2 signal, print stats */ if (signum == SIGUSR2) stats_display(0); } struct rte_mbuf **tx_burst; uint64_t (*do_measure)(struct lcore_conf *conf, struct rte_mbuf *pkts_burst[], uint64_t total_pkts); static uint64_t measure_rxtx(struct lcore_conf *conf, struct rte_mbuf *pkts_burst[], uint64_t total_pkts) { unsigned i, portid, nb_rx, nb_tx; uint64_t prev_tsc, cur_tsc; prev_tsc = rte_rdtsc(); while (likely(!stop)) { for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, MAX_PKT_BURST); if (unlikely(nb_rx == 0)) { idle++; continue; } count += nb_rx; nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); if (unlikely(nb_tx < nb_rx)) { drop += (nb_rx - nb_tx); do { rte_pktmbuf_free(pkts_burst[nb_tx]); } while (++nb_tx < nb_rx); } } if (unlikely(count >= total_pkts)) break; } cur_tsc = rte_rdtsc(); return cur_tsc - prev_tsc; } static uint64_t measure_rxonly(struct lcore_conf *conf, struct rte_mbuf *pkts_burst[], uint64_t total_pkts) { unsigned i, portid, nb_rx, nb_tx; uint64_t diff_tsc, cur_tsc; diff_tsc = 0; while (likely(!stop)) { for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; cur_tsc = rte_rdtsc(); nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, MAX_PKT_BURST); if (unlikely(nb_rx == 0)) { idle++; continue; } diff_tsc += rte_rdtsc() - cur_tsc; count += nb_rx; nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); if (unlikely(nb_tx < nb_rx)) { drop += (nb_rx - nb_tx); do { rte_pktmbuf_free(pkts_burst[nb_tx]); } while (++nb_tx < nb_rx); } } if (unlikely(count >= total_pkts)) break; } return diff_tsc; } static uint64_t measure_txonly(struct lcore_conf *conf, struct rte_mbuf *pkts_burst[], uint64_t total_pkts) { unsigned i, portid, nb_rx, nb_tx; uint64_t diff_tsc, cur_tsc; printf("do tx measure\n"); diff_tsc = 0; while (likely(!stop)) { for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, MAX_PKT_BURST); if (unlikely(nb_rx == 0)) { idle++; continue; } count += nb_rx; cur_tsc = rte_rdtsc(); nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); if (unlikely(nb_tx < nb_rx)) { drop += (nb_rx - nb_tx); do { rte_pktmbuf_free(pkts_burst[nb_tx]); } while (++nb_tx < nb_rx); } diff_tsc += rte_rdtsc() - cur_tsc; } if (unlikely(count >= total_pkts)) break; } return diff_tsc; } /* main processing loop */ static int main_loop(__rte_unused void *args) { #define PACKET_SIZE 64 #define FRAME_GAP 12 #define MAC_PREAMBLE 8 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; unsigned lcore_id; unsigned i, portid, nb_rx = 0, nb_tx = 0; struct lcore_conf *conf; int pkt_per_port; uint64_t diff_tsc; uint64_t packets_per_second, total_packets; lcore_id = rte_lcore_id(); conf = &lcore_conf[lcore_id]; if (conf->status != LCORE_USED) return 0; pkt_per_port = MAX_TRAFFIC_BURST; int idx = 0; for (i = 0; i < conf->nb_ports; i++) { int num = pkt_per_port; portid = conf->portlist[i]; printf("inject %d packet to port %d\n", num, portid); while (num) { nb_tx = RTE_MIN(MAX_PKT_BURST, num); nb_tx = rte_eth_tx_burst(portid, 0, &tx_burst[idx], nb_tx); num -= nb_tx; idx += nb_tx; } } printf("Total packets inject to prime ports = %u\n", idx); packets_per_second = (link_mbps * 1000 * 1000) / ((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT); printf("Each port will do %"PRIu64" packets per second\n", packets_per_second); total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second; printf("Test will stop after at least %"PRIu64" packets received\n", + total_packets); diff_tsc = do_measure(conf, pkts_burst, total_packets); for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; int nb_free = 0; uint64_t timeout = 10000; do { /* dry out */ nb_rx = rte_eth_rx_burst(portid, 0, pkts_burst, MAX_PKT_BURST); nb_tx = 0; while (nb_tx < nb_rx) rte_pktmbuf_free(pkts_burst[nb_tx++]); nb_free += nb_rx; if (unlikely(nb_rx == 0)) timeout--; } while (nb_free != pkt_per_port && timeout != 0); printf("free %d (expected %d) mbuf left in port %u\n", nb_free, pkt_per_port, portid); } if (count == 0) return -1; printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n", count, drop, idle); printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count); return 0; } static rte_atomic64_t start; static inline int poll_burst(void *args) { #define MAX_IDLE (10000) unsigned lcore_id; struct rte_mbuf **pkts_burst; uint64_t diff_tsc, cur_tsc; uint16_t next[RTE_MAX_ETHPORTS]; struct lcore_conf *conf; uint32_t pkt_per_port = *((uint32_t *)args); unsigned i, portid, nb_rx = 0; uint64_t total; uint64_t timeout = MAX_IDLE; int num[RTE_MAX_ETHPORTS]; lcore_id = rte_lcore_id(); conf = &lcore_conf[lcore_id]; if (conf->status != LCORE_USED) return 0; total = pkt_per_port * conf->nb_ports; printf("start to receive total expect %"PRIu64"\n", total); pkts_burst = (struct rte_mbuf **) rte_calloc_socket("poll_burst", total, sizeof(void *), RTE_CACHE_LINE_SIZE, conf->socketid); if (!pkts_burst) return -1; for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; next[portid] = i * pkt_per_port; num[portid] = pkt_per_port; } while (!rte_atomic64_read(&start)) ; cur_tsc = rte_rdtsc(); while (total) { for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; nb_rx = rte_eth_rx_burst(portid, 0, &pkts_burst[next[portid]], RTE_MIN(MAX_PKT_BURST, num[portid])); if (unlikely(nb_rx == 0)) { timeout--; if (unlikely(timeout == 0)) goto timeout; continue; } next[portid] += nb_rx; num[portid] -= nb_rx; total -= nb_rx; } } timeout: diff_tsc = rte_rdtsc() - cur_tsc; printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n", total, MAX_IDLE - timeout); /* clean up */ total = pkt_per_port * conf->nb_ports - total; for (i = 0; i < total; i++) rte_pktmbuf_free(pkts_burst[i]); rte_free(pkts_burst); if (total > 0) return diff_tsc / total; else return -1; } static int exec_burst(uint32_t flags, int lcore) { unsigned i, portid, nb_tx = 0; struct lcore_conf *conf; uint32_t pkt_per_port; int num, idx = 0; int diff_tsc; conf = &lcore_conf[lcore]; pkt_per_port = MAX_TRAFFIC_BURST; num = pkt_per_port * conf->nb_ports; rte_atomic64_init(&start); /* start polling thread, but not actually poll yet */ rte_eal_remote_launch(poll_burst, (void *)&pkt_per_port, lcore); /* Only when polling first */ if (flags == SC_BURST_POLL_FIRST) rte_atomic64_set(&start, 1); /* start xmit */ while (num) { nb_tx = RTE_MIN(MAX_PKT_BURST, num); for (i = 0; i < conf->nb_ports; i++) { portid = conf->portlist[i]; nb_tx = rte_eth_tx_burst(portid, 0, &tx_burst[idx], nb_tx); idx += nb_tx; num -= nb_tx; } } sleep(5); /* only when polling second */ if (flags == SC_BURST_XMIT_FIRST) rte_atomic64_set(&start, 1); /* wait for polling finished */ diff_tsc = rte_eal_wait_lcore(lcore); if (diff_tsc < 0) { printf("exec_burst: Failed to measure cycles per packet\n"); return -1; } printf("Result: %d cycles per packet\n", diff_tsc); return 0; } static int test_pmd_perf(void) { uint16_t nb_ports, num, nb_lcores, slave_id = (uint16_t)-1; uint16_t nb_rxd = MAX_TRAFFIC_BURST; uint16_t nb_txd = MAX_TRAFFIC_BURST; uint16_t portid; uint16_t nb_rx_queue = 1, nb_tx_queue = 1; int socketid = -1; int ret; printf("Start PMD RXTX cycles cost test.\n"); signal(SIGUSR1, signal_handler); signal(SIGUSR2, signal_handler); nb_ports = rte_eth_dev_count_avail(); if (nb_ports < NB_ETHPORTS_USED) { printf("At least %u port(s) used for perf. test\n", NB_ETHPORTS_USED); return -1; } nb_lcores = rte_lcore_count(); memset(lcore_conf, 0, sizeof(lcore_conf)); init_lcores(); init_mbufpool(NB_MBUF); if (sc_flag == SC_CONTINUOUS) { nb_rxd = RTE_TEST_RX_DESC_DEFAULT; nb_txd = RTE_TEST_TX_DESC_DEFAULT; } printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd); reset_count(); num = 0; RTE_ETH_FOREACH_DEV(portid) { if (socketid == -1) { socketid = rte_eth_dev_socket_id(portid); slave_id = alloc_lcore(socketid); if (slave_id == (uint16_t)-1) { printf("No avail lcore to run test\n"); return -1; } printf("Performance test runs on lcore %u socket %u\n", slave_id, socketid); } if (socketid != rte_eth_dev_socket_id(portid)) { printf("Skip port %d\n", portid); continue; } /* port configure */ ret = rte_eth_dev_configure(portid, nb_rx_queue, nb_tx_queue, &port_conf); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n", ret, portid); ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); if (ret < 0) rte_exit(EXIT_FAILURE, "Cannot get mac address: err=%d, port=%d\n", ret, portid); printf("Port %u ", portid); print_ethaddr("Address:", &ports_eth_addr[portid]); printf("\n"); /* tx queue setup */ ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, socketid, &tx_conf); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, " "port=%d\n", ret, portid); /* rx queue steup */ ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, socketid, &rx_conf, mbufpool[socketid]); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d," "port=%d\n", ret, portid); /* Start device */ stop = 0; ret = rte_eth_dev_start(portid); if (ret < 0) rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n", ret, portid); /* always eanble promiscuous */ ret = rte_eth_promiscuous_enable(portid); if (ret != 0) rte_exit(EXIT_FAILURE, "rte_eth_promiscuous_enable: err=%s, port=%d\n", rte_strerror(-ret), portid); lcore_conf[slave_id].portlist[num++] = portid; lcore_conf[slave_id].nb_ports++; } check_all_ports_link_status(nb_ports, RTE_PORT_ALL); if (tx_burst == NULL) { tx_burst = (struct rte_mbuf **) rte_calloc_socket("tx_buff", MAX_TRAFFIC_BURST * nb_ports, sizeof(void *), RTE_CACHE_LINE_SIZE, socketid); if (!tx_burst) return -1; } init_traffic(mbufpool[socketid], tx_burst, MAX_TRAFFIC_BURST * nb_ports); printf("Generate %d packets @socket %d\n", MAX_TRAFFIC_BURST * nb_ports, socketid); if (sc_flag == SC_CONTINUOUS) { /* do both rxtx by default */ if (NULL == do_measure) do_measure = measure_rxtx; rte_eal_remote_launch(main_loop, NULL, slave_id); if (rte_eal_wait_lcore(slave_id) < 0) return -1; } else if (sc_flag == SC_BURST_POLL_FIRST || sc_flag == SC_BURST_XMIT_FIRST) if (exec_burst(sc_flag, slave_id) < 0) return -1; /* port tear down */ RTE_ETH_FOREACH_DEV(portid) { if (socketid != rte_eth_dev_socket_id(portid)) continue; rte_eth_dev_stop(portid); } return 0; } int test_set_rxtx_conf(cmdline_fixed_string_t mode) { printf("mode switch to %s\n", mode); if (!strcmp(mode, "vector")) { /* vector rx, tx */ tx_conf.tx_rs_thresh = 32; tx_conf.tx_free_thresh = 32; return 0; } else if (!strcmp(mode, "scalar")) { /* bulk alloc rx, full-featured tx */ tx_conf.tx_rs_thresh = 32; tx_conf.tx_free_thresh = 32; port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM; return 0; } else if (!strcmp(mode, "hybrid")) { /* bulk alloc rx, vector tx * when vec macro not define, * using the same rx/tx as scalar */ tx_conf.tx_rs_thresh = 32; tx_conf.tx_free_thresh = 32; port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM; return 0; } else if (!strcmp(mode, "full")) { /* full feature rx,tx pair */ tx_conf.tx_rs_thresh = 32; tx_conf.tx_free_thresh = 32; port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER; return 0; } return -1; } int test_set_rxtx_anchor(cmdline_fixed_string_t type) { printf("type switch to %s\n", type); if (!strcmp(type, "rxtx")) { do_measure = measure_rxtx; return 0; } else if (!strcmp(type, "rxonly")) { do_measure = measure_rxonly; return 0; } else if (!strcmp(type, "txonly")) { do_measure = measure_txonly; return 0; } return -1; } int test_set_rxtx_sc(cmdline_fixed_string_t type) { printf("stream control switch to %s\n", type); if (!strcmp(type, "continuous")) { sc_flag = SC_CONTINUOUS; return 0; } else if (!strcmp(type, "poll_before_xmit")) { sc_flag = SC_BURST_POLL_FIRST; return 0; } else if (!strcmp(type, "poll_after_xmit")) { sc_flag = SC_BURST_XMIT_FIRST; return 0; } return -1; } REGISTER_TEST_COMMAND(pmd_perf_autotest, test_pmd_perf);