Displaying 3 results from an estimated 3 matches for "ndp_xdp_xmit".
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ndo_xdp_xmit
2018 Mar 01
1
[PATCH net-next 2/2] virtio-net: simplify XDP handling in small buffer
...wrote:
> > 2. This can easily cause out-of-order packets.
>
> I may miss something, but it looks to me packets were still delivered
> in order? Or you mean the packets that was dropped by cpumap?
No. Packets can now travel two code paths to the egress device. (1) XDP
native via ndp_xdp_xmit via direct delivery into a lockfree/dedicated
TX queue, (2) via normal network stack which can involve being queue in
a qdisc. Do you see the possibility of the reorder now?
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.c...
2018 Mar 01
2
[PATCH net-next 2/2] virtio-net: simplify XDP handling in small buffer
On Thu, 1 Mar 2018 11:19:05 +0800 Jason Wang <jasowang at redhat.com> wrote:
> We used to do data copy through xdp_linearize_page() for the buffer
> without sufficient headroom, it brings extra complexity without
> helping for the performance. So this patch remove it and switch to use
> generic XDP routine to handle this case.
I don't like where this is going. I don't
2018 Mar 01
2
[PATCH net-next 2/2] virtio-net: simplify XDP handling in small buffer
On Thu, 1 Mar 2018 11:19:05 +0800 Jason Wang <jasowang at redhat.com> wrote:
> We used to do data copy through xdp_linearize_page() for the buffer
> without sufficient headroom, it brings extra complexity without
> helping for the performance. So this patch remove it and switch to use
> generic XDP routine to handle this case.
I don't like where this is going. I don't