zperf: Add support for nRF7002DK

include/zephyr/net/wifi_mgmt.h

@@ -696,7 +696,7 @@ struct wifi_iface_status {
 	unsigned short beacon_interval;
 	/** is TWT capable? */
 	bool twt_capable;
-	/** The current 802.11 PHY TX data rate (in Kbps) */
+	/** The current 802.11 PHY TX data rate (in Mbps) */
 	int current_phy_tx_rate;
 };
 

samples/net/zperf/CMakeLists.txt

@@ -26,3 +26,9 @@ endif()
 if (CONFIG_USB_DEVICE_STACK_NEXT)
   include(${ZEPHYR_BASE}/samples/subsys/usb/common/common.cmake)
 endif()
+
+if (CONFIG_SOC_NRF5340_CPUAPP)
+  target_sources(app PRIVATE
+    src/nrf5340_cpu_boost.c
+    )
+endif()

samples/net/zperf/README.rst

@@ -61,3 +61,9 @@ Usage
 
 See :ref:`zperf library documentation <zperf>` for more information about
 the library usage.
+
+Wi-Fi
+=====
+
+The IPv4 Wi-Fi support can be enabled in the sample with
+:ref:`Wi-Fi snippet <snippet-wifi-ipv4>`.

samples/net/zperf/boards/nrf7002dk_nrf5340_cpuapp.conf

@@ -0,0 +1,25 @@
+# Optimized networking settings for performance
+CONFIG_NET_PKT_RX_COUNT=28
+CONFIG_NET_PKT_TX_COUNT=27
+CONFIG_NET_BUF_RX_COUNT=28
+CONFIG_NET_BUF_TX_COUNT=54
+CONFIG_NET_BUF_DATA_SIZE=1100
+CONFIG_HEAP_MEM_POOL_SIZE=260000
+CONFIG_NRF70_MAX_TX_AGGREGATION=4
+CONFIG_NRF70_QSPI_LOW_POWER=n
+
+# For speed optimizations
+CONFIG_PICOLIBC_USE_MODULE=y
+
+# Consumes more memory
+CONFIG_WIFI_CREDENTIALS=n
+CONFIG_FLASH=n
+CONFIG_NVS=n
+CONFIG_SETTINGS=n
+
+# Debugging
+CONFIG_NRF70_UTIL=y
+CONFIG_SYS_HEAP_RUNTIME_STATS=y
+CONFIG_NET_STATISTICS=y
+CONFIG_NET_STATISTICS_WIFI=y
+CONFIG_NET_STATISTICS_USER_API=y

samples/net/zperf/sample.yaml

@@ -123,3 +123,8 @@ tests:
   sample.net.zperf.802154.subg:
     extra_args: EXTRA_CONF_FILE="overlay-802154-subg.conf"
     platform_allow: beagleconnect_freedom
+  sample.net.zperf.nrf7002dk:
+    extra_args: SNIPPET=wifi-ipv4
+    extra_configs:
+      - CONFIG_BUILD_ONLY_NO_BLOBS=y
+    platform_allow: nrf7002dk/nrf5340/cpuapp

samples/net/zperf/src/main.c

@@ -12,6 +12,8 @@
 #include <zephyr/usb/usbd.h>
 #include <zephyr/net/net_config.h>
 
+LOG_MODULE_REGISTER(zperf, CONFIG_NET_ZPERF_LOG_LEVEL);
+
 #ifdef CONFIG_NET_LOOPBACK_SIMULATE_PACKET_DROP
 #include <zephyr/net/loopback.h>
 #endif

samples/net/zperf/src/nrf5340_cpu_boost.c

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/**
+ * @file
+ * @brief CPU frequency boost for nRF53 series
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+
+#include <nrfx_clock.h>
+
+LOG_MODULE_DECLARE(zperf, CONFIG_NET_ZPERF_LOG_LEVEL);
+
+static int nrf53_cpu_boost(void)
+{
+	int err;
+
+	/* For optimal performance, the CPU frequency should be set to 128 MHz */
+	err = nrfx_clock_divider_set(NRF_CLOCK_DOMAIN_HFCLK, NRF_CLOCK_HFCLK_DIV_1);
+	err -= NRFX_ERROR_BASE_NUM;
+	if (err != 0) {
+		LOG_WRN("Failed to set 128 MHz: %d", err);
+	}
+
+	LOG_INF("Starting %s with CPU frequency: %d MHz", CONFIG_BOARD, SystemCoreClock/MHZ(1));
+
+	return err;
+}
+
+SYS_INIT(nrf53_cpu_boost, POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);

snippets/wifi-ipv4/wifi-ipv4.conf

@@ -7,7 +7,7 @@ CONFIG_WIFI_NM_WPA_SUPPLICANT=y
 CONFIG_MAIN_STACK_SIZE=2048
 CONFIG_ZVFS_OPEN_MAX=24
 CONFIG_NET_MAX_CONN=10
-CONFIG_NET_SOCKETS_POLL_MAX=9
+CONFIG_ZVFS_POLL_MAX=10
 
 # IPv4 only for now
 CONFIG_NET_IPV6=n

subsys/net/l2/wifi/wifi_shell.c

@@ -1154,9 +1154,7 @@ static int cmd_wifi_status(const struct shell *sh, size_t argc, char *argv[])
 		PR("DTIM: %d\n", status.dtim_period);
 		PR("TWT: %s\n",
 		   status.twt_capable ? "Supported" : "Not supported");
-		PR("Current PHY TX rate (Mbps) : %d.%03d\n",
-		   status.current_phy_tx_rate / 1000,
-		   status.current_phy_tx_rate % 1000);
+		PR("Current PHY TX rate (Mbps) : %d\n", status.current_phy_tx_rate);
 	}
 
 	return 0;