From 9f431e7ebc6a8acf44c89f200974c658ebc1b27b Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Mon, 23 May 2022 15:11:52 +0200 Subject: user: Document Zynq network Content is from rtems-libbsd/libbsd.txt with minor modifications. --- user/bsps/arm/xilinx-zynq.rst | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'user/bsps/arm') diff --git a/user/bsps/arm/xilinx-zynq.rst b/user/bsps/arm/xilinx-zynq.rst index 29f9cb0..0ac4487 100644 --- a/user/bsps/arm/xilinx-zynq.rst +++ b/user/bsps/arm/xilinx-zynq.rst @@ -1,6 +1,6 @@ .. SPDX-License-Identifier: CC-BY-SA-4.0 -.. Copyright (C) 2020 Chris Johns (chrisj@rtems.org) +.. Copyright (C) 2015, 2020 Chris Johns (chrisj@rtems.org) xilinx-zynq =========== @@ -49,6 +49,22 @@ tools or a bootloader will be overwritten. The settings for the console driver can be changed by the user application through the termios API afterwards. +Network +------- + +The Cadence network interface driver of LibBSD works on the Xilinx Zynq +platform. The hardware checksum support works on real hardware but does not +seem to be supported on Qemu therefore the default state is to disable +``IFCAP_TXCSUM`` and ``IFCAP_RXCSUM`` and this can be enabled from the shell +with: + +.. code-block:: none + + ifconfig cgem0 rxcsum txcsum + +or with an ``ioctl()`` call to the network interface driver with ``SIOCSIFCAP`` +and the mask ``IFCAP_TXCSUM`` and ``IFCAP_RXCSUM`` set. + Debugging with xilinx_zynq_a9_qemu ---------------------------------- -- cgit v1.2.3