usb: device_next: Simple NCM driver for usb-next

Sample changes.

Signed-off-by: Hardy Griech <[email protected]>

Author: rgrr

samples/net/zperf/overlay-netusb.conf

@@ -1,6 +1,12 @@
 # USB Device Settings
 CONFIG_USB_DEVICE_STACK=y
 
+CONFIG_NET_PKT_RX_COUNT=14
+CONFIG_NET_PKT_TX_COUNT=14
+CONFIG_NET_BUF_RX_COUNT=28
+CONFIG_NET_BUF_TX_COUNT=28
+CONFIG_NET_BUF_DATA_SIZE=1500
+
 # Select USB Configurations
 CONFIG_USB_DEVICE_NETWORK_ECM=y
 CONFIG_USB_DEVICE_INITIALIZE_AT_BOOT=n

samples/net/zperf/overlay-usbd_next.conf

@@ -0,0 +1,10 @@
+CONFIG_USB_DEVICE_STACK_NEXT=y
+
+# next-ncm does not work well with the static-size buffers
+CONFIG_NET_PKT_BUF_RX_DATA_POOL_SIZE=10000
+CONFIG_NET_PKT_BUF_TX_DATA_POOL_SIZE=10000
+CONFIG_NET_BUF_VARIABLE_DATA_SIZE=y
+
+CONFIG_LOG=y
+CONFIG_USBD_LOG_LEVEL_WRN=y
+CONFIG_UDC_DRIVER_LOG_LEVEL_WRN=y

samples/net/zperf/overlay-usbd_next_ecm.conf

@@ -48,11 +48,18 @@ tests:
       - native_posix/native/64
   sample.net.zperf.device_next_ecm:
     harness: net
-    extra_args: OVERLAY_CONFIG="overlay-usbd_next_ecm.conf"
+    extra_args: OVERLAY_CONFIG="overlay-usbd_next.conf"
                 DTC_OVERLAY_FILE="usbd_next_ecm.overlay"
     platform_allow: nrf52840dk/nrf52840 frdm_k64f
     tags: usb net zperf
     depends_on: usb_device
+  sample.net.zperf.device_next_ncm:
+    harness: net
+    extra_args: OVERLAY_CONFIG="overlay-usbd_next.conf"
+                DTC_OVERLAY_FILE="usbd_next_ncm.overlay"
+    platform_allow: nrf52840dk/nrf52840 frdm_k64f
+    tags: usb net zperf
+    depends_on: usb_device
   sample.net.zperf.netusb_eem:
     harness: net
     extra_args: OVERLAY_CONFIG="overlay-netusb.conf"

samples/net/zperf/sample.yaml

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2024 Hardy Griech
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+    cdc_ncm_eth0: cdc_ncm_eth0 {
+        compatible = "zephyr,cdc-ncm-ethernet";
+        remote-mac-address = "00005E005301";
+    };
+};

samples/net/zperf/usbd_next_ncm.overlay

@@ -72,6 +72,7 @@ static void sample_fix_code_triple(struct usbd_context *uds_ctx,
 	/* Always use class code information from Interface Descriptors */
 	if (IS_ENABLED(CONFIG_USBD_CDC_ACM_CLASS) ||
 	    IS_ENABLED(CONFIG_USBD_CDC_ECM_CLASS) ||
+	    IS_ENABLED(CONFIG_USBD_CDC_NCM_CLASS) ||
 	    IS_ENABLED(CONFIG_USBD_AUDIO2_CLASS)) {
 		/*
 		 * Class with multiple interfaces have an Interface