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https://github.com/zephyrproject-rtos/zephyr
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afdb0e0a70
Atmel SAM family GMAC Ethernet driver is implementing zero-copy networking. As a result it has to reserve a defined amount of RX data net buffers before bringing up the interface. Since net buffer pool is initialized by the network stack and this driver was bringing the interface up in its initialization function the driver initialization was performed, as a workaround, after network stack initialization. It is not a clean solution. This patch fixes this by bringing the interface up in interface initialization function. The driver itself can now be initialized before the network stack is. Tested on Atmel SMART SAM E70 Xplained board Change-Id: I65886fd6db6f27a10628e393cfabd8e5f78c08ff Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com> |
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| .. | ||
| src | ||
| Makefile | ||
| prj_arduino_101_cc2520.conf | ||
| prj_arduino_101.conf | ||
| prj_bt.conf | ||
| prj_cc2520.conf | ||
| prj_frdm_k64f_cc2520.conf | ||
| prj_frdm_k64f_mcr20a.conf | ||
| prj_frdm_k64f.conf | ||
| prj_nrf5.conf | ||
| prj_qemu_802154.conf | ||
| prj_qemu_cortex_m3.conf | ||
| prj_qemu_x86.conf | ||
| prj_sam_e70_xplained.conf | ||
| README.rst | ||
| testcase.ini | ||
.. _echo-server-sample:
Echo Server
###########
Overview
********
The echo-server sample application for Zephyr implements a UDP/TCP server
that complements the echo-client sample application: the echo-server listens
for incoming IPv4 or IPv6 packets (sent by the echo client) and simply sends
them back.
The source code for this sample application can be found at:
:file:`samples/net/echo_server`.
Building and Running
********************
There are multiple ways to use this application. One of the most common
usage scenario is to run echo-server application inside QEMU. This is
described in :ref:`networking with QEMU <networking_with_qemu>`.
There are configuration files for different boards and setups in the
echo-server directory:
- :file:`prj_arduino_101_cc2520.conf`
Use this for Arduino 101 with external IEEE 802.15.4 cc2520 board.
- :file:`prj_arduino_101.conf`
Use this for Arduino 101 with external enc28j60 ethernet board.
- :file:`prj_bt.conf`
Use this for Bluetooth IPSP connectivity.
- :file:`prj_cc2520.conf`
Use this for devices that have support for IEEE 802.15.4 cc2520 chip.
- :file:`prj_frdm_k64f_cc2520.conf`
Use this for FRDM-K64F board with external IEEE 802.15.4 cc2520 board.
- :file:`prj_frdm_k64f.conf`
Use this for FRDM-K64F board with built-in ethernet.
- :file:`prj_frdm_k64f_mcr20a.conf`
Use this for FRDM-K64F board with IEEE 802.15.4 mcr20a board.
- :file:`prj_qemu_802154.conf`
Use this when simulating IEEE 802.15.4 network using two QEMU's that
are connected together.
- :file:`prj_qemu_cortex_m3.conf`
Use this for ARM QEMU.
- :file:`prj_qemu_x86.conf`
Use this for x86 QEMU.
- :file:`prj_sam_e70_xplained.conf`
Use this for Atmel SMART SAM E70 Xplained board with ethernet.
Build echo-server sample application like this:
.. code-block:: console
$ cd $ZEPHYR_BASE/samples/net/echo_server
$ make pristine && make CONF_FILE=<your desired conf file> \
BOARD=<board to use>
Make can select the default configuration file based on the BOARD you've
specified automatically so you might not always need to mention it.
Running echo-client in Linux Host
=================================
There is one useful testing scenario that can be used with Linux host.
Here echo-server is run in QEMU and echo-client is run in Linux host.
Run 'loop_socat' and 'loop-slip-tap' scripts from net-tools in Linux host.
.. code-block:: console
$ ./loop_socat.sh
In another window:
.. code-block:: console
$ sudo ./loop-slip-tap.sh
Run echo-server application in QEMU:
.. code-block:: console
$ cd $ZEPHYR_BASE/samples/net/echo-server
$ make pristine && make qemu
In third window:
.. code-block:: console
$ sudo ./echo-client -i tap0 2001:db8::1
Note that echo-server must be running in QEMU before you start the
echo-client application in host terminal window.