On 2018年03月03日 00:07, Jesper Dangaard Brouer wrote:
On Fri, 2 Mar 2018 17:29:14 +0800 Jason Wang <[email protected]> wrote:XDP_REDIRECT support for mergeable buffer was removed since commit 7324f5399b06 ("virtio_net: disable XDP_REDIRECT in receive_mergeable() case"). This is because we don't reserve enough tailroom for struct skb_shared_info which breaks XDP assumption. So this patch fixes this by reserving enough tailroom and using fixed size of rx buffer. Signed-off-by: Jason Wang <[email protected]> --- Changes from V1: - do not add duplicated tracepoint when redirection failsAcked-by: Jesper Dangaard Brouer <[email protected]> I gave it a quick spin on my testlab, and cpumap seems to work/not-crash now (if I managed to turn back config to receive_mergeable() correctly ;-)).
Thanks for the testing and reviewing.
