This page provides details related to the light weight IP (LWIP) library and the SW app lwip echo server.

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Note: Socket mode performance on Xilinx 2020.1 is 19% lower than 2019 and it is recommended to use the next release for better performance.

2020.2 lwip numbers:

Test cases

Echo server

lwip echo server is used to test lwip library with a basic TCP echo application.
Create an lwip echo server application. Run fsbl and then lwip echo server elf.
On the link partner, run
telnet <ip address> 7

Note: If DHCP is not being used (enabled by default), make sure to set static IP addresses in the same group in lwip echo server and the link partner machine.

Sample expected output:

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• There is an issue with freertos support for AXI Ethernet + FIFO designs in 2017.1 and 2017.2. For details refer to AR-69578.
• Emaclite support in lwip is broken in 2018.2. Please refer to AR-71330.

Change log

2020.2

Summary:

• Bugfixes related to RX BD setup, RX pbuf handling in error path, mkfs format in examples, VCU118 PHY handling and lwip timer & delay handling.
• Minor changes in lwip app tcl checks and usage of canonical definitions.

Commits:

https://github.com/Xilinx/embeddedsw/commits/xilinx-v2020.2/ThirdParty/sw_services/lwip211

2020.1

Summary:

• Minor enhancements to Makefile and dependencies.props file.
• Removed xps timer reference in lwip SW apps as it is no longer supported.

Commits:

https://github.com/Xilinx/embeddedsw/commits/xilinx-v2020.1/ThirdParty/sw_services/lwip211

3e7863e sw_apps: Remove xps_timer reference

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