Merge branch 'refactor/examples-unify_iperf_component' into 'master'

examples: unify iperf component

Closes IDF-3529

See merge request espressif/esp-idf!14290

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/CMakeLists.txt

@@ -3,7 +3,8 @@
 cmake_minimum_required(VERSION 3.5)
 
 set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/bluetooth/esp_ble_mesh/common_components/example_init
-                         $ENV{IDF_PATH}/examples/bluetooth/esp_ble_mesh/common_components/fast_provisioning)
+                         $ENV{IDF_PATH}/examples/bluetooth/esp_ble_mesh/common_components/fast_provisioning
+                         $ENV{IDF_PATH}/examples/common_components/iperf)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(ble_mesh_wifi_coexist)

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/Makefile

@@ -5,7 +5,8 @@
 
 PROJECT_NAME := ble_mesh_wifi_coexist
 
-EXTRA_COMPONENT_DIRS := $(IDF_PATH)/examples/bluetooth/esp_ble_mesh/common_components/example_init \
+EXTRA_COMPONENT_DIRS := $(IDF_PATH)/examples/bluetooth/esp_ble_mesh/common_components/example_init
-                        $(IDF_PATH)/examples/bluetooth/esp_ble_mesh/common_components/fast_provisioning
+EXTRA_COMPONENT_DIRS += $(IDF_PATH)/examples/bluetooth/esp_ble_mesh/common_components/fast_provisioning
+EXTRA_COMPONENT_DIRS += $(IDF_PATH)/examples/common_components/iperf
 
 include $(IDF_PATH)/make/project.mk

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/components/iperf/CMakeLists.txt

@@ -1,3 +0,0 @@
-idf_component_register(SRCS "cmd_wifi.c" "iperf.c"
-                    INCLUDE_DIRS  "."
-                    REQUIRES lwip console)

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/components/iperf/component.mk

@@ -1,11 +0,0 @@
-#
-# Component Makefile
-#
-# This Makefile should, at the very least, just include $(SDK_PATH)/Makefile. By default,
-# this will take the sources in the src/ directory, compile them and link them into
-# lib(subdirectory_name).a in the build directory. This behaviour is entirely configurable,
-# please read the SDK documents if you need to do this.
-#
-
-#include $(IDF_PATH)/make/component_common.mk
-COMPONENT_ADD_INCLUDEDIRS := .

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/components/iperf/iperf.c

@@ -1,449 +0,0 @@
-/* Iperf Example - iperf implementation
-
-   This example code is in the Public Domain (or CC0 licensed, at your option.)
-
-   Unless required by applicable law or agreed to in writing, this
-   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
-   CONDITIONS OF ANY KIND, either express or implied.
-*/
-
-#include <sys/socket.h>
-#include <stdio.h>
-#include <string.h>
-#include "esp_log.h"
-
-#include "iperf.h"
-
-typedef struct {
-    iperf_cfg_t cfg;
-    bool     finish;
-    uint32_t total_len;
-    uint32_t buffer_len;
-    uint8_t  *buffer;
-    uint32_t sockfd;
-} iperf_ctrl_t;
-
-typedef struct {
-    int32_t id;
-    uint32_t sec;
-    uint32_t usec;
-} iperf_udp_pkt_t;
-
-static bool s_iperf_is_running = false;
-static iperf_ctrl_t s_iperf_ctrl;
-static const char *TAG = "iperf";
-
-inline static bool iperf_is_udp_client(void)
-{
-    return ((s_iperf_ctrl.cfg.flag & IPERF_FLAG_CLIENT) && (s_iperf_ctrl.cfg.flag & IPERF_FLAG_UDP));
-}
-
-inline static bool iperf_is_udp_server(void)
-{
-    return ((s_iperf_ctrl.cfg.flag & IPERF_FLAG_SERVER) && (s_iperf_ctrl.cfg.flag & IPERF_FLAG_UDP));
-}
-
-inline static bool iperf_is_tcp_client(void)
-{
-    return ((s_iperf_ctrl.cfg.flag & IPERF_FLAG_CLIENT) && (s_iperf_ctrl.cfg.flag & IPERF_FLAG_TCP));
-}
-
-inline static bool iperf_is_tcp_server(void)
-{
-    return ((s_iperf_ctrl.cfg.flag & IPERF_FLAG_SERVER) && (s_iperf_ctrl.cfg.flag & IPERF_FLAG_TCP));
-}
-
-int iperf_get_socket_error_code(int sockfd)
-{
-    return errno;
-}
-
-int iperf_show_socket_error_reason(const char *str, int sockfd)
-{
-    int err = errno;
-    if (err != 0) {
-        ESP_LOGW(TAG, "%s error, error code: %d, reason: %s", str, err, strerror(err));
-    }
-
-    return err;
-}
-
-void iperf_report_task(void *arg)
-{
-    TickType_t delay_interval = (s_iperf_ctrl.cfg.interval * 1000) / portTICK_RATE_MS;
-    uint32_t interval = s_iperf_ctrl.cfg.interval;
-    uint32_t time = s_iperf_ctrl.cfg.time;
-    uint32_t last_len = 0;
-    uint32_t cur = 0;
-
-    printf("\n%16s %s\n", "Interval", "Bandwidth");
-    while (!s_iperf_ctrl.finish) {
-        vTaskDelay(delay_interval);
-        printf("%4d-%4d sec       %.2f Mbits/sec\n", cur, cur + interval, (double)((s_iperf_ctrl.total_len - last_len) * 8) / interval / 1e6);
-        cur += interval;
-        last_len = s_iperf_ctrl.total_len;
-        if (cur == time) {
-            break;
-        }
-    }
-
-    if (cur != 0) {
-        printf("%4d-%4d sec       %.2f Mbits/sec\n", 0, time, (double)(s_iperf_ctrl.total_len * 8) / cur / 1e6);
-    }
-
-    s_iperf_ctrl.finish = true;
-    vTaskDelete(NULL);
-}
-
-esp_err_t iperf_start_report(void)
-{
-    int ret;
-
-    ret = xTaskCreatePinnedToCore(iperf_report_task, IPERF_REPORT_TASK_NAME, IPERF_REPORT_TASK_STACK, NULL, IPERF_REPORT_TASK_PRIORITY, NULL, portNUM_PROCESSORS - 1);
-
-    if (ret != pdPASS)  {
-        ESP_LOGE(TAG, "create task %s failed", IPERF_REPORT_TASK_NAME);
-        return ESP_FAIL;
-    }
-
-    return ESP_OK;
-}
-
-esp_err_t iperf_run_tcp_server(void)
-{
-    socklen_t addr_len = sizeof(struct sockaddr);
-    struct sockaddr_in remote_addr;
-    struct sockaddr_in addr;
-    int actual_recv = 0;
-    int want_recv = 0;
-    uint8_t *buffer;
-    int listen_socket;
-    struct timeval t;
-    int sockfd;
-    int opt;
-
-    listen_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (listen_socket < 0) {
-        iperf_show_socket_error_reason("tcp server create", listen_socket);
-        return ESP_FAIL;
-    }
-
-    setsockopt(listen_socket, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
-
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons(s_iperf_ctrl.cfg.sport);
-    addr.sin_addr.s_addr = s_iperf_ctrl.cfg.sip;
-    if (bind(listen_socket, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
-        iperf_show_socket_error_reason("tcp server bind", listen_socket);
-        close(listen_socket);
-        return ESP_FAIL;
-    }
-
-    if (listen(listen_socket, 5) < 0) {
-        iperf_show_socket_error_reason("tcp server listen", listen_socket);
-        close(listen_socket);
-        return ESP_FAIL;
-    }
-
-    iperf_start_report();
-    buffer = s_iperf_ctrl.buffer;
-    want_recv = s_iperf_ctrl.buffer_len;
-    while (!s_iperf_ctrl.finish) {
-
-        /*TODO need to change to non-block mode */
-        sockfd = accept(listen_socket, (struct sockaddr *)&remote_addr, &addr_len);
-        if (sockfd < 0) {
-            iperf_show_socket_error_reason("tcp server listen", listen_socket);
-            close(listen_socket);
-            return ESP_FAIL;
-        } else {
-            printf("accept: %s,%d\n", inet_ntoa(remote_addr.sin_addr), htons(remote_addr.sin_port));
-
-            t.tv_sec = IPERF_SOCKET_RX_TIMEOUT;
-            setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &t, sizeof(t));
-        }
-
-        while (!s_iperf_ctrl.finish) {
-            actual_recv = recv(sockfd, buffer, want_recv, 0);
-            if (actual_recv < 0) {
-                iperf_show_socket_error_reason("tcp server recv", listen_socket);
-                break;
-            } else {
-                s_iperf_ctrl.total_len += actual_recv;
-            }
-        }
-
-        close(sockfd);
-    }
-
-    s_iperf_ctrl.finish = true;
-    close(listen_socket);
-    return ESP_OK;
-}
-
-esp_err_t IRAM_ATTR iperf_run_udp_server(void)
-{
-    socklen_t addr_len = sizeof(struct sockaddr_in);
-    struct sockaddr_in addr;
-    int actual_recv = 0;
-    struct timeval t;
-    int want_recv = 0;
-    uint8_t *buffer;
-    int sockfd;
-    int opt;
-
-    sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-    if (sockfd < 0) {
-        iperf_show_socket_error_reason("udp server create", sockfd);
-        return ESP_FAIL;
-    }
-
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
-
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons(s_iperf_ctrl.cfg.sport);
-    addr.sin_addr.s_addr = s_iperf_ctrl.cfg.sip;
-    if (bind(sockfd, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
-        iperf_show_socket_error_reason("udp server bind", sockfd);
-        return ESP_FAIL;
-    }
-
-
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons(s_iperf_ctrl.cfg.sport);
-    addr.sin_addr.s_addr = s_iperf_ctrl.cfg.sip;
-
-    iperf_start_report();
-    buffer = s_iperf_ctrl.buffer;
-    want_recv = s_iperf_ctrl.buffer_len;
-    ESP_LOGI(TAG, "want recv=%d", want_recv);
-
-    t.tv_sec = IPERF_SOCKET_RX_TIMEOUT;
-    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &t, sizeof(t));
-
-    while (!s_iperf_ctrl.finish) {
-        actual_recv = recvfrom(sockfd, buffer, want_recv, 0, (struct sockaddr *)&addr, &addr_len);
-        if (actual_recv < 0) {
-            iperf_show_socket_error_reason("udp server recv", sockfd);
-        } else {
-            s_iperf_ctrl.total_len += actual_recv;
-        }
-    }
-
-    s_iperf_ctrl.finish = true;
-    close(sockfd);
-    return ESP_OK;
-}
-
-esp_err_t iperf_run_udp_client(void)
-{
-    struct sockaddr_in addr;
-    iperf_udp_pkt_t *udp;
-    int actual_send = 0;
-    bool retry = false;
-    uint32_t delay = 1;
-    int want_send = 0;
-    uint8_t *buffer;
-    int sockfd;
-    int opt;
-    int err;
-    int id;
-
-    sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-    if (sockfd < 0) {
-        iperf_show_socket_error_reason("udp server create", sockfd);
-        return ESP_FAIL;
-    }
-
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
-
-    addr.sin_family = AF_INET;
-    addr.sin_port = 0;
-    addr.sin_addr.s_addr = s_iperf_ctrl.cfg.sip;
-    if (bind(sockfd, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
-        iperf_show_socket_error_reason("udp server bind", sockfd);
-        return ESP_FAIL;
-    }
-
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons(s_iperf_ctrl.cfg.dport);
-    addr.sin_addr.s_addr = s_iperf_ctrl.cfg.dip;
-
-    iperf_start_report();
-    buffer = s_iperf_ctrl.buffer;
-    udp = (iperf_udp_pkt_t *)buffer;
-    want_send = s_iperf_ctrl.buffer_len;
-    id = 0;
-
-    while (!s_iperf_ctrl.finish) {
-        if (false == retry) {
-            id ++;
-            udp->id = htonl(id);
-            delay = 1;
-        }
-
-        retry = false;
-        actual_send = sendto(sockfd, buffer, want_send, 0, (struct sockaddr *)&addr, sizeof(addr));
-
-        if (actual_send != want_send) {
-            err = iperf_get_socket_error_code(sockfd);
-            if (err == ENOMEM) {
-                vTaskDelay(delay);
-                if (delay < IPERF_MAX_DELAY) {
-                    delay <<= 1;
-                }
-                retry = true;
-                continue;
-            } else {
-                ESP_LOGE(TAG, "udp client send abort: err=%d", err);
-                break;
-            }
-        } else {
-            s_iperf_ctrl.total_len += actual_send;
-        }
-    }
-
-    s_iperf_ctrl.finish = true;
-    close(sockfd);
-    return ESP_OK;
-}
-
-
-esp_err_t iperf_run_tcp_client(void)
-{
-    struct sockaddr_in local_addr;
-    struct sockaddr_in remote_addr;
-    int actual_send = 0;
-    int want_send = 0;
-    uint8_t *buffer;
-    int sockfd;
-    int opt;
-
-    sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-    if (sockfd < 0) {
-        iperf_show_socket_error_reason("tcp client create", sockfd);
-        return ESP_FAIL;
-    }
-
-    setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
-
-    memset(&local_addr, 0, sizeof(local_addr));
-    local_addr.sin_family = AF_INET;
-    local_addr.sin_port = 0;
-    local_addr.sin_addr.s_addr = s_iperf_ctrl.cfg.sip;
-    if (bind(sockfd, (struct sockaddr *)&local_addr, sizeof(local_addr)) != 0) {
-        iperf_show_socket_error_reason("tcp client bind", sockfd);
-        return ESP_FAIL;
-    }
-
-
-    memset(&remote_addr, 0, sizeof(remote_addr));
-    remote_addr.sin_family = AF_INET;
-    remote_addr.sin_port = htons(s_iperf_ctrl.cfg.dport);
-    remote_addr.sin_addr.s_addr = s_iperf_ctrl.cfg.dip;
-    if (connect(sockfd, (struct sockaddr *)&remote_addr, sizeof(remote_addr)) < 0) {
-        iperf_show_socket_error_reason("tcp client connect", sockfd);
-        return ESP_FAIL;
-    }
-
-    iperf_start_report();
-    buffer = s_iperf_ctrl.buffer;
-    want_send = s_iperf_ctrl.buffer_len;
-    while (!s_iperf_ctrl.finish) {
-        actual_send = send(sockfd, buffer, want_send, 0);
-        if (actual_send <= 0) {
-            iperf_show_socket_error_reason("tcp client send", sockfd);
-            break;
-        } else {
-            s_iperf_ctrl.total_len += actual_send;
-        }
-    }
-
-    close(sockfd);
-    return ESP_OK;
-}
-
-void iperf_task_traffic(void *arg)
-{
-    if (iperf_is_udp_client()) {
-        iperf_run_udp_client();
-    } else if (iperf_is_udp_server()) {
-        iperf_run_udp_server();
-    } else if (iperf_is_tcp_client()) {
-        iperf_run_tcp_client();
-    } else {
-        iperf_run_tcp_server();
-    }
-
-    if (s_iperf_ctrl.buffer) {
-        free(s_iperf_ctrl.buffer);
-        s_iperf_ctrl.buffer = 0;
-    }
-    ESP_LOGI(TAG, "iperf exit");
-    s_iperf_is_running = false;
-    vTaskDelete(NULL);
-}
-
-uint32_t iperf_get_buffer_len(void)
-{
-    if (iperf_is_udp_client()) {
-        return IPERF_UDP_TX_LEN;
-    } else if (iperf_is_udp_server()) {
-        return IPERF_UDP_RX_LEN;
-    } else if (iperf_is_tcp_client()) {
-        return IPERF_TCP_TX_LEN;
-    } else {
-        return IPERF_TCP_RX_LEN;
-    }
-    return 0;
-}
-
-esp_err_t iperf_start(iperf_cfg_t *cfg)
-{
-    int ret;
-
-    if (!cfg) {
-        return ESP_FAIL;
-    }
-
-    if (s_iperf_is_running) {
-        ESP_LOGW(TAG, "iperf is running");
-        return ESP_FAIL;
-    }
-
-    memset(&s_iperf_ctrl, 0, sizeof(s_iperf_ctrl));
-    memcpy(&s_iperf_ctrl.cfg, cfg, sizeof(*cfg));
-    s_iperf_is_running = true;
-    s_iperf_ctrl.finish = false;
-    s_iperf_ctrl.buffer_len = iperf_get_buffer_len();
-    s_iperf_ctrl.buffer = (uint8_t *)malloc(s_iperf_ctrl.buffer_len);
-    if (!s_iperf_ctrl.buffer) {
-        ESP_LOGE(TAG, "create buffer: out of memory");
-        return ESP_FAIL;
-    }
-    memset(s_iperf_ctrl.buffer, 0, s_iperf_ctrl.buffer_len);
-
-    ret = xTaskCreatePinnedToCore(iperf_task_traffic, IPERF_TRAFFIC_TASK_NAME, IPERF_TRAFFIC_TASK_STACK, NULL, IPERF_TRAFFIC_TASK_PRIORITY, NULL, portNUM_PROCESSORS - 1);
-    if (ret != pdPASS)  {
-        ESP_LOGE(TAG, "create task %s failed", IPERF_TRAFFIC_TASK_NAME);
-        free(s_iperf_ctrl.buffer);
-        s_iperf_ctrl.buffer = 0;
-        return ESP_FAIL;
-    }
-
-    return ESP_OK;
-}
-
-esp_err_t iperf_stop(void)
-{
-    if (s_iperf_is_running) {
-        s_iperf_ctrl.finish = true;
-    }
-
-    while (s_iperf_is_running) {
-        ESP_LOGI(TAG, "wait current iperf to stop ...");
-        vTaskDelay(300 / portTICK_RATE_MS);
-    }
-
-    return ESP_OK;
-}

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/components/iperf/iperf.h

@@ -1,61 +0,0 @@
-/* Iperf Example - iperf declaration
-
-   This example code is in the Public Domain (or CC0 licensed, at your option.)
-
-   Unless required by applicable law or agreed to in writing, this
-   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
-   CONDITIONS OF ANY KIND, either express or implied.
-*/
-
-#ifndef __IPERF_H_
-#define __IPERF_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define IPERF_FLAG_CLIENT (1)
-#define IPERF_FLAG_SERVER (1<<1)
-#define IPERF_FLAG_TCP    (1<<2)
-#define IPERF_FLAG_UDP    (1<<3)
-
-#define IPERF_DEFAULT_PORT     5001
-#define IPERF_DEFAULT_INTERVAL 3
-#define IPERF_DEFAULT_TIME     30
-
-#define IPERF_TRAFFIC_TASK_NAME       "iperf_traffic"
-#define IPERF_TRAFFIC_TASK_PRIORITY   10
-#define IPERF_TRAFFIC_TASK_STACK      4096
-#define IPERF_REPORT_TASK_NAME        "iperf_report"
-#define IPERF_REPORT_TASK_PRIORITY    20
-#define IPERF_REPORT_TASK_STACK       4096
-#define IPERF_REPORT_TASK_NAME        "iperf_report"
-
-#define IPERF_UDP_TX_LEN     (1472)
-#define IPERF_UDP_RX_LEN     (16<<10)
-#define IPERF_TCP_TX_LEN     (16<<10)
-#define IPERF_TCP_RX_LEN     (16<<10)
-
-#define IPERF_MAX_DELAY      64
-
-#define IPERF_SOCKET_RX_TIMEOUT      10
-#define IPERF_SOCKET_ACCEPT_TIMEOUT  5
-
-typedef struct {
-    uint32_t flag;
-    uint32_t dip;
-    uint32_t sip;
-    uint16_t dport;
-    uint16_t sport;
-    uint32_t interval;
-    uint32_t time;
-} iperf_cfg_t;
-
-esp_err_t iperf_start(iperf_cfg_t *cfg);
-esp_err_t iperf_stop(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

examples/bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist/main/CMakeLists.txt

@@ -1,5 +1,6 @@
 set(srcs "main.c"
-        "board.c")
+        "board.c"
+        "cmd_wifi.c")
 
 idf_component_register(SRCS "${srcs}"
                     INCLUDE_DIRS  ".")

examples/common_components/iperf/CMakeLists.txt

@@ -1,3 +1,3 @@
 idf_component_register(SRCS "iperf.c"
-                    INCLUDE_DIRS .
+                    INCLUDE_DIRS "include"
                     REQUIRES lwip)

examples/common_components/iperf/README.md

@@ -0,0 +1,14 @@
+# iperf Component
+
+This directory contains an implementation for iperf network performance tester
+
+Note that it's incompatible with `iperf3`
+
+This component is used as part of the following ESP-IDF examples:
+- [esp_wifi](../../wifi/iperf).
+- [ble_mesh_wifi_coexist](../../bluetooth/esp_ble_mesh/ble_mesh_wifi_coexist).
+- [ethernet](../../ethernet/iperf)
+
+To learn more about how to use this component, please check API Documentation from header file [iperf.h](./include/iperf.h).
+
+Please note that this component is not considered to be a part of ESP-IDF stable API, and only for example use for now.

examples/common_components/iperf/component.mk

@@ -8,4 +8,4 @@
 #
 
 #include $(IDF_PATH)/make/component_common.mk
-COMPONENT_ADD_INCLUDEDIRS := .
+COMPONENT_ADD_INCLUDEDIRS := include

examples/ethernet/iperf/CMakeLists.txt

@@ -3,7 +3,7 @@
 cmake_minimum_required(VERSION 3.5)
 
 set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/system/console/advanced/components
-                         $ENV{IDF_PATH}/examples/wifi/iperf/components)
+                         $ENV{IDF_PATH}/examples/common_components/iperf)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(ethernet_iperf)

examples/ethernet/iperf/Makefile

@@ -7,6 +7,7 @@ PROJECT_NAME := ethernet_iperf
 
 EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/system/console/advanced/components
 EXTRA_COMPONENT_DIRS += $(IDF_PATH)/examples/wifi/iperf/components
+EXTRA_COMPONENT_DIRS += $(IDF_PATH)/examples/common_components/iperf
 
 
 include $(IDF_PATH)/make/project.mk

examples/wifi/iperf/CMakeLists.txt

@@ -2,7 +2,8 @@
 # in this exact order for cmake to work correctly
 cmake_minimum_required(VERSION 3.5)
 
-set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/system/console/advanced/components)
+set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/system/console/advanced/components
+                         $ENV{IDF_PATH}/examples/common_components/iperf)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 project(iperf)

examples/wifi/iperf/Makefile

@@ -6,5 +6,6 @@
 PROJECT_NAME := iperf
 
 EXTRA_COMPONENT_DIRS := $(IDF_PATH)/examples/system/console/advanced/components
+EXTRA_COMPONENT_DIRS += $(IDF_PATH)/examples/common_components/iperf
 
 include $(IDF_PATH)/make/project.mk