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AR# 29791

10.1 EDK - TEMAC and Ethernet Lite issues addressed

Description

Keywords: xps_ll_temac, xps_ll_fifo, FIFO, Local Link, TEMAC, TX data, UDP, fragment, driver, truncate, lwIP, lwip_v3_00_a

TEMAC and Ethernet Lite 9.2i issues are as follows:

- TX CSUM offloading does not work for XPS LocalLink TEMAC (xps_ll_temac_v1_00_b).
- lwIP Ethernet Lite software adapter (lwip_v3_00_a) truncates packets at 1500 bytes
- lwIP Ethernet Lite software adapter (lwip_v3_00_a) does not transmit segmented UDP packages
- Ethernet Lite driver (emaclite_v1_11_a) reports incorrect FIFO space

Solution

1. Download the tactical patches at:

http://www.xilinx.com/txpatches/pub/applications/misc/ethernet_hw_patch.zip
http://www.xilinx.com/txpatches/pub/applications/misc/ethernet_sw_patch.zip

2. Add an _old suffix to the following files:

$EDK\hw\XilinxProcessorIPLib\pcores\xps_ll_temac_v1_00_b\hdl\vhdl\tx_ll_if.vhd
$EDK\sw\ThirdParty\sw_services\lwip_v3_00_a\src\contrib\ports\Xilinx\netif\xemacliteif.c
$EDK\sw\XilinxProcessorIPLib\drivers\emaclite_v1_11_a\src\xemaclite.c

3. Unzip ethernet_hw_patch.zip into $EDK.
4. Unzip ethernet_sw_patch.zip into $EDK.

The TEMAC hardware issue will be fixed in EDK 10.1.

The Ethernet Lite software issues will be fixed in EDK 10.1 Service Pack 1.
AR# 29791
Date Created 01/22/2008
Last Updated 03/19/2008
Status Active
Type General Article