[dpdk-dev] [dpdk-stable] [PATCH v3] net/ixgbe: fix UDP zero checksum error

[David Marchand]

On Thu, Feb 25, 2021 at 11:54 AM David Marchand
<david.marchand at redhat.com> wrote:
>
> Hello Haiyue,
>
> On Thu, Feb 4, 2021 at 3:56 PM Haiyue Wang <haiyue.wang at intel.com> wrote:
> >
> > There is an 82599 errata that UDP frames with a zero checksum are
> > incorrectly marked as checksum invalid by the hardware.  This was
> > leading to misleading PKT_RX_L4_CKSUM_BAD flag.
> >
> > This patch changes the bad UDP checksum to PKT_RX_L4_CKSUM_UNKNOWN,
> > so the software application will then have to recompute the checksum
> > itself if needed.
> >
> > Bugzilla ID: 629
> > Fixes: af75078fece3 ("first public release")
> > Cc: stable at dpdk.org
> >
> > Reported-by: Paolo Valerio <pvalerio at redhat.com>
> > Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>
>
> There was a previous mention of this issue in the past and it resulted
> in dropping part of the hw statistics.
> https://git.dpdk.org/dpdk/commit/?id=256ff05a9cae7484e2197cde4401dfa1f21d5a6f
>
> Does it make sense to restrict this "fix" to 82599 only?

ping.


-- 
David Marchand