On Fri, Mar 18, 2016 at 4:25 PM, Alexander Duyck <adu...@mirantis.com> wrote: > This patch adds support for partial GSO segmentation in the case of GRE or > UDP encapsulated frames. > > The one bit in this patch that is a bit controversial is the fact that we > are leaving the inner IPv4 IP ID as a static value in the case of > segmentation. As per RFC6864 this should be acceptable as TCP frames set > the DF bit so the IP ID should be ignored. However this is not always the > case as header compression schemes for PPP and SLIP can end up taking a > performance hit as they have to record the fact that the ID didn't change > as expected. > > In addition GRO was examining the IP ID field as well. As such on older > GRO implementations TSO frames from this driver may end up blocking GRO on > the other end which will likely hurt performance instead of helping it. > > Signed-off-by: Alexander Duyck <adu...@mirantis.com>
I wasn't able to apply this patch, it seems like it might be based on some Intel driver patches that haven't been merged into net-next yet?
