Commit 52ddc6e3 authored by Krishna T's avatar Krishna T Committed by Carles Cufi
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samples: net: zperf: Add loopback overlay 



This is useful to profile networking stack using loopback interface, a
TX only option is also added but disabled by default.

Signed-off-by: default avatarKrishna T <krishna.t@nordicsemi.no>
parent 3cc1a6e9

samples/net/zperf/overlay-loopback.conf

0 → 100644
+12 −0
Original line number Diff line number Diff line 
CONFIG_NET_DRIVERS=y

CONFIG_NET_LOOPBACK=y

CONFIG_NET_LOOPBACK_MTU=1100

# Enable for testing TX only

CONFIG_NET_LOOPBACK_SIMULATE_PACKET_DROP=y



CONFIG_NET_BUF_DATA_SIZE=1100

# Optimized networking settings for performance

CONFIG_NET_PKT_RX_COUNT=32

CONFIG_NET_PKT_TX_COUNT=48

CONFIG_NET_BUF_RX_COUNT=32

CONFIG_NET_BUF_TX_COUNT=96

samples/net/zperf/src/main.c

+6 −0
Original line number Diff line number Diff line
@@ -11,6 +11,9 @@ 
#include <zephyr/usb/usb_device.h>

#include <zephyr/net/net_config.h>



#ifdef CONFIG_NET_LOOPBACK_SIMULATE_PACKET_DROP

#include <zephyr/net/loopback.h>

#endif

void main(void)

{

#if defined(CONFIG_USB_DEVICE_STACK)
@@ -23,4 +26,7 @@ void main(void) 


	(void)net_config_init_app(NULL, "Initializing network");

#endif /* CONFIG_USB_DEVICE_STACK */

#ifdef CONFIG_NET_LOOPBACK_SIMULATE_PACKET_DROP

	loopback_set_packet_drop_ratio(1);

#endif

}

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