On 2/13/20 12:44 AM, Flavio Leitner wrote: > On Wed, Feb 12, 2020 at 04:31:09PM -0300, Flavio Leitner wrote: >> On Wed, Feb 12, 2020 at 04:26:46PM +0100, Ilya Maximets wrote: >>> On 2/10/20 8:18 PM, Flavio Leitner wrote: >>>> Disable ECN and UFO since this is not supported yet. Also, disable >>>> all other features when userspace_tso is not enabled. >>> >>> Disabling UFO saves us from receiving of a big unfragmented >>> UDP packets, but UDP packets will still have bad checksums >>> and will be dropped by the kernel on receive side. >>> So, this is only part of a fix. >> >> Yes, this patch is not intended to fix the UDP checksum problem. >> Unless you see a way to do that with changing the flags below. > > BTW, why do you think there is a problem with UDP checksum? > We set VIRTIO_NET_HDR_F_NEEDS_CSUM which should be all it is needed.
At least we're sending UDP packets on a wire without requesting Tx UDP checksum offloading from HW NICs. _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
