06-03-2014 11:20 PM
According to UG585 Technical Reference the Gigabi Ethernetcontroller can be programmed to perform IP, TCP and UDP checksum offloading in both receive and transmit directions.
PARAMETER TCP_IP_RX_CHECKSUM_OFFLOAD = true
PARAMETER TCP_IP_TX_CHECKSUM_OFFLOAD = true
in lwip settings the sw (xapp1026 for example) crashes.
How can I activate these options in Vivado/SDK 2014.1 ??
06-03-2014 11:37 PM
Updating the MSS should be sufficient. I have looked at the MLD of LWIP provided in 2014.1 and it looks that these parameters
are indeed there. Refer to the snapshot attached.
Would that be possible to create a new BSP with LWIP being used rather than updating the one provided by XAPP1026?
06-03-2014 11:46 PM
I created a new BSP. I use the sw of xapp1026 v3.2 only (and a copy of the settings for lwip for Zynq)
Your screeshot shows a remark "Applicable only for AXI-Ethernet".
Does this mean a TEMAC in the PL?
06-05-2014 09:24 AM
Yes that is correct understanding. Refer to the snapshot given here.
It looks GigE this parameter is always present, so it is not needed to be applied again.