Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix UDP zero checksum error

On Wed, Feb 3, 2021 at 9:07 AM Zhang, Qi Z [off-list ref] wrote:

quoted

-----Original Message-----
From: Wang, Haiyue <redacted>
Sent: Wednesday, February 3, 2021 10:19 AM
To: dev@dpdk.org
Cc: pvalerio@redhat.com; aconole@redhat.com;
david.marchand@redhat.com; Zhang, Qi Z [off-list ref]; Rong, Leyi
[off-list ref]; Tu, Lijuan [off-list ref];
Ruifeng.Wang@arm.com; Feifei.Wang2@arm.com; Wang, Haiyue
[off-list ref]; stable@dpdk.org; Guo, Jia [off-list ref];
Richardson, Bruce [off-list ref]; Ananyev, Konstantin
[off-list ref]
Subject: [PATCH v2] net/ixgbe: fix UDP zero checksum error

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@dpdk.org

Reported-by: Paolo Valerio <redacted>
Signed-off-by: Haiyue Wang <redacted>

Applied to dpdk-next-net-intel.

Why the rush for applying?
The ARM part is not done, Paolo said he would test the patch and I am
pretty sure a review can't hurt.


-- 
David Marchand