Hi Haiyue,
Haiyue Wang <haiyue.w...@intel.com> writes:
> 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: sta...@dpdk.org
>
> Reported-by: Paolo Valerio <pvale...@redhat.com>
> Signed-off-by: Haiyue Wang <haiyue.w...@intel.com>
> ---
> v3: Update the hardware errata doc name and session
> v2: Change the always GOOD checksum to UNKOWN if BAD.
> ---
> doc/guides/nics/ixgbe.rst | 10 ++++++++
> drivers/net/ixgbe/ixgbe_rxtx.c | 30 ++++++++++++++++++++----
> drivers/net/ixgbe/ixgbe_rxtx.h | 2 ++
> drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c | 32 +++++++++++++++++++++++---
> 4 files changed, 67 insertions(+), 7 deletions(-)
Tested it successfully with OvS ct() action and testpmd.
Thanks,
Paolo
