Re: Query on new ethtool RSS hashing options

On Sat, Mar 06, 2021 at 05:38:14PM +0530, Sunil Kovvuri wrote:

quoted

Can you share the format of the DSA tag? Is there a driver for it
upstream? Do we need to represent it in union ethtool_flow_union?

No, there is no driver for this tag in the kernel.
I have attached the tag format.
There are multiple DSA tag formats and representing them ethtool_flow
union would be difficult.
Hence wondering if it would be okay to add a more flexible way ie
offset and num_bytes from the start of packet.

How sure are you that the tag format you've shared is not identical to
the one parsed by net/dsa/tag_dsa.c?