Re: Cherry-pick "i40e: Be much more verbose about what we can and cannot offload"

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On Tue, Jun 22, 2021 at 08:18:53PM +0200, Philipp Hahn wrote:
> Hello,
> 
> I request the following patch from v4.10-rc1 to get cherry-picked into
> "stable/linux-4.9.y":
> 
> > commit f114dca2533ca770aebebffb5ed56e5e7d1fb3fb
> > Author: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>
> > Date:   Tue Oct 25 16:08:46 2016 -0700
> > 
> >     i40e: Be much more verbose about what we can and cannot offload
> >     This change makes it so that we are much more robust about defining what we
> >     can and cannot offload.  Previously we were just checking for the L4 tunnel
> >     header length, however there are other fields we should be verifying as
> >     there are multiple scenarios in which we cannot perform hardware offloads.
> >     In addition the device only supports GSO as long as the MSS is 64 or
> >     greater.  We were not checking this so an MSS less than that was resulting
> >     in Tx hangs.
> >     Change-ID: I5e2fd5f3075c73601b4b36327b771c64fcb6c31b
> >     Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>
> >     Tested-by: Andrew Bowers <andrewx.bowers@xxxxxxxxx>
> 
> Debian had this old Bug
> <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=892105> reported against
> 4.9.82, which still exists in Debians old-stable 9 "Stretch" current kernel
> 4.9.258, but also with latest stable 4.9.273.

Now queued up, thanks.

greg k-h



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