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RHenr's avatar
RHenr
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

[Cyclone V HPS] Enable Transmit/Receive Checksum offload in Ethernet MAC

Hello, we are trying to enable Checksum Offload Engine (COE) / IPC Full Offload in our Cyclone V HPS. Here is what we have done so far: Use 32 bytes transmit/receive descriptors and set the ATD...
RHenr's avatar
RHenr
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

I thought the the HW_Feature register was static and only reporting the implemented hardware feature implemented in the peripheral itself, not depending on its current configuration:

This register indicates the presence of the optional features or functions of the gmac. The software driver can use this register to dynamically enable or disable the programs related to the optional blocks.

So I don't think that the Type 1 offload can be enabled.

Moreover, I did not find an explanation in the datasheet about the difference between type 1 and type 2. Where are they described in the HPS reference manual ?