On Fri, 2013-11-08 at 11:22 +0800, Herbert Xu wrote:

If it really hurt then they can always turn it off using ethtool.
With your patch that automatically turns it off virt folks have
no way of even turning it on.

Let me remind you that before the GRO frag_list patch, virt folks had no
choice anyway. GRO packets were limited to 16 MSS.

Its not because we can build large packets that we must do so.

This was an error of our TSO implementation.