X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=examples%2Fl3fwd-power%2Fmain.c;h=20e5b59af9121e77054f01568d391643e04f62dc;hb=23f7ec1d9b7ccfcfb9b9f67d33cf6cbf7f5034d3;hp=afa38c158c45c1e03bd997b0648470a6ddc6da78;hpb=ce6b8c31548b4d71a986d9807cd06cf3a616d1ab;p=dpdk.git diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c index afa38c158c..20e5b59af9 100644 --- a/examples/l3fwd-power/main.c +++ b/examples/l3fwd-power/main.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include @@ -47,6 +46,7 @@ #include #include #include +#include #include "perf_core.h" #include "main.h" @@ -199,11 +199,15 @@ enum appmode { APP_MODE_LEGACY, APP_MODE_EMPTY_POLL, APP_MODE_TELEMETRY, - APP_MODE_INTERRUPT + APP_MODE_INTERRUPT, + APP_MODE_PMD_MGMT }; enum appmode app_mode; +static enum rte_power_pmd_mgmt_type pmgmt_type; +bool baseline_enabled; + enum freq_scale_hint_t { FREQ_LOWER = -1, @@ -245,22 +249,23 @@ uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default); static struct rte_eth_conf port_conf = { .rxmode = { - .mq_mode = ETH_MQ_RX_RSS, - .max_rx_pkt_len = RTE_ETHER_MAX_LEN, + .mq_mode = RTE_ETH_MQ_RX_RSS, .split_hdr_size = 0, - .offloads = DEV_RX_OFFLOAD_CHECKSUM, + .offloads = RTE_ETH_RX_OFFLOAD_CHECKSUM, }, .rx_adv_conf = { .rss_conf = { .rss_key = NULL, - .rss_hf = ETH_RSS_UDP, + .rss_hf = RTE_ETH_RSS_UDP, }, }, .txmode = { - .mq_mode = ETH_MQ_TX_NONE, + .mq_mode = RTE_ETH_MQ_TX_NONE, } }; +static uint32_t max_pkt_len; + static struct rte_mempool * pktmbuf_pool[NB_SOCKETS]; @@ -428,7 +433,7 @@ signal_exit_now(int sigtype) } -/* Freqency scale down timer callback */ +/* Frequency scale down timer callback */ static void power_timer_cb(__rte_unused struct rte_timer *tim, __rte_unused void *arg) @@ -500,7 +505,15 @@ is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len) return -1; /* 2. The IP checksum must be correct. */ - /* this is checked in H/W */ + /* if this is not checked in H/W, check it. */ + if ((port_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_IPV4_CKSUM) == 0) { + uint16_t actual_cksum, expected_cksum; + actual_cksum = pkt->hdr_checksum; + pkt->hdr_checksum = 0; + expected_cksum = rte_ipv4_cksum(pkt); + if (actual_cksum != expected_cksum) + return -2; + } /* * 3. The IP version number must be 4. If the version number is not 4 @@ -712,7 +725,7 @@ l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid, dst_port = portid; /* 02:00:00:00:00:xx */ - d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; + d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0]; *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40); @@ -724,7 +737,7 @@ l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid, /* src addr */ rte_ether_addr_copy(&ports_eth_addr[dst_port], - ð_hdr->s_addr); + ð_hdr->src_addr); send_single_packet(m, dst_port); } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) { @@ -744,13 +757,13 @@ l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid, dst_port = portid; /* 02:00:00:00:00:xx */ - d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; + d_addr_bytes = ð_hdr->dst_addr.addr_bytes[0]; *((uint64_t *)d_addr_bytes) = 0x000000000002 + ((uint64_t)dst_port << 40); /* src addr */ rte_ether_addr_copy(&ports_eth_addr[dst_port], - ð_hdr->s_addr); + ð_hdr->src_addr); send_single_packet(m, dst_port); #else @@ -821,20 +834,23 @@ power_freq_scaleup_heuristic(unsigned lcore_id, * 0 on success */ static int -sleep_until_rx_interrupt(int num) +sleep_until_rx_interrupt(int num, int lcore) { /* * we want to track when we are woken up by traffic so that we can go - * back to sleep again without log spamming. + * back to sleep again without log spamming. Avoid cache line sharing + * to prevent threads stepping on each others' toes. */ - static bool timeout; + static struct { + bool wakeup; + } __rte_cache_aligned status[RTE_MAX_LCORE]; struct rte_epoll_event event[num]; int n, i; uint16_t port_id; uint8_t queue_id; void *data; - if (!timeout) { + if (status[lcore].wakeup) { RTE_LOG(INFO, L3FWD_POWER, "lcore %u sleeps until interrupt triggers\n", rte_lcore_id()); @@ -851,7 +867,7 @@ sleep_until_rx_interrupt(int num) " port %d queue %d\n", rte_lcore_id(), port_id, queue_id); } - timeout = n == 0; + status[lcore].wakeup = n != 0; return 0; } @@ -903,7 +919,7 @@ static int event_register(struct lcore_conf *qconf) return 0; } -/* main processing loop */ +/* Main processing loop. 8< */ static int main_intr_loop(__rte_unused void *dummy) { struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; @@ -1050,7 +1066,8 @@ start_rx: if (intr_en) { turn_on_off_intr(qconf, 1); sleep_until_rx_interrupt( - qconf->n_rx_queue); + qconf->n_rx_queue, + lcore_id); turn_on_off_intr(qconf, 0); /** * start receiving packets immediately @@ -1065,6 +1082,7 @@ start_rx: return 0; } +/* >8 End of main processing loop. */ /* main processing loop */ static int @@ -1473,7 +1491,8 @@ start_rx: if (intr_en) { turn_on_off_intr(qconf, 1); sleep_until_rx_interrupt( - qconf->n_rx_queue); + qconf->n_rx_queue, + lcore_id); turn_on_off_intr(qconf, 0); /** * start receiving packets immediately @@ -1514,7 +1533,7 @@ check_lcore_params(void) "off\n", lcore, socketid); } if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) { - printf("cannot enable master core %d in config for telemetry mode\n", + printf("cannot enable main core %d in config for telemetry mode\n", rte_lcore_id()); return -1; } @@ -1590,23 +1609,24 @@ print_usage(const char *prgname) " [--config (port,queue,lcore)[,(port,queue,lcore]]" " [--high-perf-cores CORELIST" " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]" - " [--enable-jumbo [--max-pkt-len PKTLEN]]\n" + " [--max-pkt-len PKTLEN]\n" " -p PORTMASK: hexadecimal bitmask of ports to configure\n" - " -P : enable promiscuous mode\n" + " -P: enable promiscuous mode\n" " --config (port,queue,lcore): rx queues configuration\n" " --high-perf-cores CORELIST: list of high performance cores\n" " --perf-config: similar as config, cores specified as indices" " for bins containing high or regular performance cores\n" " --no-numa: optional, disable numa awareness\n" - " --enable-jumbo: enable jumbo frame" - " which max packet len is PKTLEN in decimal (64-9600)\n" + " --max-pkt-len PKTLEN: maximum packet length in decimal (64-9600)\n" " --parse-ptype: parse packet type by software\n" " --legacy: use legacy interrupt-based scaling\n" " --empty-poll: enable empty poll detection" " follow (training_flag, high_threshold, med_threshold)\n" " --telemetry: enable telemetry mode, to update" " empty polls, full polls, and core busyness to telemetry\n" - " --interrupt-only: enable interrupt-only mode\n", + " --interrupt-only: enable interrupt-only mode\n" + " --pmd-mgmt MODE: enable PMD power management mode. " + "Currently supported modes: baseline, monitor, pause, scale\n", prgname); } @@ -1696,6 +1716,37 @@ parse_config(const char *q_arg) return 0; } + +static int +parse_pmd_mgmt_config(const char *name) +{ +#define PMD_MGMT_MONITOR "monitor" +#define PMD_MGMT_PAUSE "pause" +#define PMD_MGMT_SCALE "scale" +#define PMD_MGMT_BASELINE "baseline" + + if (strncmp(PMD_MGMT_MONITOR, name, sizeof(PMD_MGMT_MONITOR)) == 0) { + pmgmt_type = RTE_POWER_MGMT_TYPE_MONITOR; + return 0; + } + + if (strncmp(PMD_MGMT_PAUSE, name, sizeof(PMD_MGMT_PAUSE)) == 0) { + pmgmt_type = RTE_POWER_MGMT_TYPE_PAUSE; + return 0; + } + + if (strncmp(PMD_MGMT_SCALE, name, sizeof(PMD_MGMT_SCALE)) == 0) { + pmgmt_type = RTE_POWER_MGMT_TYPE_SCALE; + return 0; + } + if (strncmp(PMD_MGMT_BASELINE, name, sizeof(PMD_MGMT_BASELINE)) == 0) { + baseline_enabled = true; + return 0; + } + /* unknown PMD power management mode */ + return -1; +} + static int parse_ep_config(const char *q_arg) { @@ -1711,7 +1762,7 @@ parse_ep_config(const char *q_arg) int hgh_edpi; ep_med_edpi = EMPTY_POLL_MED_THRESHOLD; - ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD; + ep_hgh_edpi = EMPTY_POLL_HGH_THRESHOLD; strlcpy(s, p, sizeof(s)); @@ -1734,7 +1785,7 @@ parse_ep_config(const char *q_arg) if (med_edpi > 0) ep_med_edpi = med_edpi; - if (med_edpi > 0) + if (hgh_edpi > 0) ep_hgh_edpi = hgh_edpi; } else { @@ -1750,6 +1801,8 @@ parse_ep_config(const char *q_arg) #define CMD_LINE_OPT_EMPTY_POLL "empty-poll" #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only" #define CMD_LINE_OPT_TELEMETRY "telemetry" +#define CMD_LINE_OPT_PMD_MGMT "pmd-mgmt" +#define CMD_LINE_OPT_MAX_PKT_LEN "max-pkt-len" /* Parse the argument given in the command line of the application */ static int @@ -1765,12 +1818,13 @@ parse_args(int argc, char **argv) {"perf-config", 1, 0, 0}, {"high-perf-cores", 1, 0, 0}, {"no-numa", 0, 0, 0}, - {"enable-jumbo", 0, 0, 0}, + {CMD_LINE_OPT_MAX_PKT_LEN, 1, 0, 0}, {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0}, {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0}, {CMD_LINE_OPT_LEGACY, 0, 0, 0}, {CMD_LINE_OPT_TELEMETRY, 0, 0, 0}, {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0}, + {CMD_LINE_OPT_PMD_MGMT, 1, 0, 0}, {NULL, 0, 0, 0} }; @@ -1881,6 +1935,21 @@ parse_args(int argc, char **argv) printf("telemetry mode is enabled\n"); } + if (!strncmp(lgopts[option_index].name, + CMD_LINE_OPT_PMD_MGMT, + sizeof(CMD_LINE_OPT_PMD_MGMT))) { + if (app_mode != APP_MODE_DEFAULT) { + printf(" power mgmt mode is mutually exclusive with other modes\n"); + return -1; + } + if (parse_pmd_mgmt_config(optarg) < 0) { + printf(" Invalid PMD power management mode: %s\n", + optarg); + return -1; + } + app_mode = APP_MODE_PMD_MGMT; + printf("PMD power mgmt mode is enabled\n"); + } if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_INTERRUPT_ONLY, sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) { @@ -1893,36 +1962,10 @@ parse_args(int argc, char **argv) } if (!strncmp(lgopts[option_index].name, - "enable-jumbo", 12)) { - struct option lenopts = - {"max-pkt-len", required_argument, \ - 0, 0}; - - printf("jumbo frame is enabled \n"); - port_conf.rxmode.offloads |= - DEV_RX_OFFLOAD_JUMBO_FRAME; - port_conf.txmode.offloads |= - DEV_TX_OFFLOAD_MULTI_SEGS; - - /** - * if no max-pkt-len set, use the default value - * RTE_ETHER_MAX_LEN - */ - if (0 == getopt_long(argc, argvopt, "", - &lenopts, &option_index)) { - ret = parse_max_pkt_len(optarg); - if ((ret < 64) || - (ret > MAX_JUMBO_PKT_LEN)){ - printf("invalid packet " - "length\n"); - print_usage(prgname); - return -1; - } - port_conf.rxmode.max_rx_pkt_len = ret; - } - printf("set jumbo frame " - "max packet length to %u\n", - (unsigned int)port_conf.rxmode.max_rx_pkt_len); + CMD_LINE_OPT_MAX_PKT_LEN, + sizeof(CMD_LINE_OPT_MAX_PKT_LEN))) { + printf("Custom frame size is configured\n"); + max_pkt_len = parse_max_pkt_len(optarg); } if (!strncmp(lgopts[option_index].name, @@ -2134,6 +2177,7 @@ check_all_ports_link_status(uint32_t port_mask) uint16_t portid; struct rte_eth_link link; int ret; + char link_status_text[RTE_ETH_LINK_MAX_STR_LEN]; printf("\nChecking link status"); fflush(stdout); @@ -2153,19 +2197,14 @@ check_all_ports_link_status(uint32_t port_mask) } /* print link status if flag set */ if (print_flag == 1) { - if (link.link_status) - printf("Port %d Link Up - speed %u " - "Mbps - %s\n", (uint8_t)portid, - (unsigned)link.link_speed, - (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? - ("full-duplex") : ("half-duplex")); - else - printf("Port %d Link Down\n", - (uint8_t)portid); + rte_eth_link_to_str(link_status_text, + sizeof(link_status_text), &link); + printf("Port %d %s\n", portid, + link_status_text); continue; } /* clear all_ports_up flag if any link down */ - if (link.link_status == ETH_LINK_DOWN) { + if (link.link_status == RTE_ETH_LINK_DOWN) { all_ports_up = 0; break; } @@ -2287,7 +2326,7 @@ get_current_stat_values(uint64_t *values) uint64_t app_eps = 0, app_fps = 0, app_br = 0; uint64_t count = 0; - RTE_LCORE_FOREACH_SLAVE(lcore_id) { + RTE_LCORE_FOREACH_WORKER(lcore_id) { qconf = &lcore_conf[lcore_id]; if (qconf->n_rx_queue == 0) continue; @@ -2319,7 +2358,7 @@ update_telemetry(__rte_unused struct rte_timer *tim, ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index, values, RTE_DIM(values)); if (ret < 0) - RTE_LOG(WARNING, POWER, "failed to update metrcis\n"); + RTE_LOG(WARNING, POWER, "failed to update metrics\n"); } static int @@ -2379,10 +2418,10 @@ launch_timer(unsigned int lcore_id) RTE_SET_USED(lcore_id); - if (rte_get_master_lcore() != lcore_id) { - rte_panic("timer on lcore:%d which is not master core:%d\n", + if (rte_get_main_lcore() != lcore_id) { + rte_panic("timer on lcore:%d which is not main core:%d\n", lcore_id, - rte_get_master_lcore()); + rte_get_main_lcore()); } RTE_LOG(INFO, POWER, "Bring up the Timer\n"); @@ -2441,11 +2480,49 @@ mode_to_str(enum appmode mode) return "telemetry"; case APP_MODE_INTERRUPT: return "interrupt-only"; + case APP_MODE_PMD_MGMT: + return "pmd mgmt"; default: return "invalid"; } } +static uint32_t +eth_dev_get_overhead_len(uint32_t max_rx_pktlen, uint16_t max_mtu) +{ + uint32_t overhead_len; + + if (max_mtu != UINT16_MAX && max_rx_pktlen > max_mtu) + overhead_len = max_rx_pktlen - max_mtu; + else + overhead_len = RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN; + + return overhead_len; +} + +static int +config_port_max_pkt_len(struct rte_eth_conf *conf, + struct rte_eth_dev_info *dev_info) +{ + uint32_t overhead_len; + + if (max_pkt_len == 0) + return 0; + + if (max_pkt_len < RTE_ETHER_MIN_LEN || max_pkt_len > MAX_JUMBO_PKT_LEN) + return -1; + + overhead_len = eth_dev_get_overhead_len(dev_info->max_rx_pktlen, + dev_info->max_mtu); + conf->rxmode.mtu = max_pkt_len - overhead_len; + + if (conf->rxmode.mtu > RTE_ETHER_MTU) + conf->txmode.offloads |= RTE_ETH_TX_OFFLOAD_MULTI_SEGS; + + return 0; +} + +/* Power library initialized in the main routine. 8< */ int main(int argc, char **argv) { @@ -2463,9 +2540,6 @@ main(int argc, char **argv) uint16_t portid; const char *ptr_strings[NUM_TELSTATS]; - /* catch SIGINT and restore cpufreq governor to ondemand */ - signal(SIGINT, signal_exit_now); - /* init EAL */ ret = rte_eal_init(argc, argv); if (ret < 0) @@ -2473,9 +2547,15 @@ main(int argc, char **argv) argc -= ret; argv += ret; + /* catch SIGINT and restore cpufreq governor to ondemand */ + signal(SIGINT, signal_exit_now); + /* init RTE timer library to be used late */ rte_timer_subsystem_init(); + /* if we're running pmd-mgmt mode, don't default to baseline mode */ + baseline_enabled = false; + /* parse application arguments (after the EAL ones) */ ret = parse_args(argc, argv); if (ret < 0) @@ -2559,9 +2639,15 @@ main(int argc, char **argv) "Error during getting device (port %u) info: %s\n", portid, strerror(-ret)); - if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) + ret = config_port_max_pkt_len(&local_port_conf, &dev_info); + if (ret != 0) + rte_exit(EXIT_FAILURE, + "Invalid max packet length: %u (port %u)\n", + max_pkt_len, portid); + + if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE) local_port_conf.txmode.offloads |= - DEV_TX_OFFLOAD_MBUF_FAST_FREE; + RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE; local_port_conf.rx_adv_conf.rss_conf.rss_hf &= dev_info.flow_type_rss_offloads; @@ -2574,6 +2660,11 @@ main(int argc, char **argv) local_port_conf.rx_adv_conf.rss_conf.rss_hf); } + if (local_port_conf.rx_adv_conf.rss_conf.rss_hf == 0) + local_port_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE; + local_port_conf.rxmode.offloads &= dev_info.rx_offload_capa; + port_conf.rxmode.offloads = local_port_conf.rxmode.offloads; + ret = rte_eth_dev_configure(portid, nb_rx_queue, (uint16_t)n_tx_queue, &local_port_conf); if (ret < 0) @@ -2670,6 +2761,7 @@ main(int argc, char **argv) qconf = &lcore_conf[lcore_id]; printf("\nInitializing rx queues on lcore %u ... ", lcore_id ); fflush(stdout); + /* init RX queues */ for(queue = 0; queue < qconf->n_rx_queue; ++queue) { struct rte_eth_rxconf rxq_conf; @@ -2706,11 +2798,20 @@ main(int argc, char **argv) if (add_cb_parse_ptype(portid, queueid) < 0) rte_exit(EXIT_FAILURE, "Fail to add ptype cb\n"); - } else if (!check_ptype(portid)) - rte_exit(EXIT_FAILURE, - "PMD can not provide needed ptypes\n"); + } + + if (app_mode == APP_MODE_PMD_MGMT && !baseline_enabled) { + ret = rte_power_ethdev_pmgmt_queue_enable( + lcore_id, portid, queueid, + pmgmt_type); + if (ret < 0) + rte_exit(EXIT_FAILURE, + "rte_power_ethdev_pmgmt_queue_enable: err=%d, port=%d\n", + ret, portid); + } } } + /* >8 End of power library initialization. */ printf("\n"); @@ -2739,6 +2840,11 @@ main(int argc, char **argv) } /* initialize spinlock for each port */ rte_spinlock_init(&(locks[portid])); + + if (!parse_ptype) + if (!check_ptype(portid)) + rte_exit(EXIT_FAILURE, + "PMD can not provide needed ptypes\n"); } check_all_ports_link_status(enabled_port_mask); @@ -2763,11 +2869,11 @@ main(int argc, char **argv) /* launch per-lcore init on every lcore */ if (app_mode == APP_MODE_LEGACY) { - rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MASTER); + rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN); } else if (app_mode == APP_MODE_EMPTY_POLL) { empty_poll_stop = false; rte_eal_mp_remote_launch(main_empty_poll_loop, NULL, - SKIP_MASTER); + SKIP_MAIN); } else if (app_mode == APP_MODE_TELEMETRY) { unsigned int i; @@ -2783,7 +2889,7 @@ main(int argc, char **argv) else rte_exit(EXIT_FAILURE, "failed to register metrics names"); - RTE_LCORE_FOREACH_SLAVE(lcore_id) { + RTE_LCORE_FOREACH_WORKER(lcore_id) { rte_spinlock_init(&stats[lcore_id].telemetry_lock); } rte_timer_init(&telemetry_timer); @@ -2791,25 +2897,47 @@ main(int argc, char **argv) handle_app_stats, "Returns global power stats. Parameters: None"); rte_eal_mp_remote_launch(main_telemetry_loop, NULL, - SKIP_MASTER); + SKIP_MAIN); } else if (app_mode == APP_MODE_INTERRUPT) { - rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MASTER); + rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN); + } else if (app_mode == APP_MODE_PMD_MGMT) { + /* reuse telemetry loop for PMD power management mode */ + rte_eal_mp_remote_launch(main_telemetry_loop, NULL, CALL_MAIN); } if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY) launch_timer(rte_lcore_id()); - RTE_LCORE_FOREACH_SLAVE(lcore_id) { + RTE_LCORE_FOREACH_WORKER(lcore_id) { if (rte_eal_wait_lcore(lcore_id) < 0) return -1; } + if (app_mode == APP_MODE_PMD_MGMT) { + for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { + if (rte_lcore_is_enabled(lcore_id) == 0) + continue; + qconf = &lcore_conf[lcore_id]; + for (queue = 0; queue < qconf->n_rx_queue; ++queue) { + portid = qconf->rx_queue_list[queue].port_id; + queueid = qconf->rx_queue_list[queue].queue_id; + + rte_power_ethdev_pmgmt_queue_disable(lcore_id, + portid, queueid); + } + } + } + RTE_ETH_FOREACH_DEV(portid) { if ((enabled_port_mask & (1 << portid)) == 0) continue; - rte_eth_dev_stop(portid); + ret = rte_eth_dev_stop(portid); + if (ret != 0) + RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n", + ret, portid); + rte_eth_dev_close(portid); }