From: David S. Miller <davem@davemloft.net>
Date: Tue, 9 Jan 2018 15:57:19 +0000 (-0500)
Subject: Merge branch 'XDP-transmission-for-tuntap'
X-Git-Tag: v4.16-rc1~123^2~210
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e8b18af8c3680315449fe8c29279199ecc334e7d;p=users%2Fwilly%2Fxarray.git

Merge branch 'XDP-transmission-for-tuntap'

Jason Wang says:

====================
XDP transmission for tuntap

This series tries to implement XDP transmission (ndo_xdp_xmit) for
tuntap. Pointer ring was used for queuing both XDP buffers and
sk_buff, this is done by encoding the type into lowest bit of the
pointer and storin XDP metadata in the headroom of XDP buff.

Tests gets 3.05 Mpps when doing xdp_redirect_map from ixgbe to VM
(testpmd + virtio-net in guest). This gives us ~20% improvments
compared to use skb during redirect.

Please review.

Changes from V1:

- slient warnings
- fix typos
- add skb mode number in the commit log
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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e8b18af8c3680315449fe8c29279199ecc334e7d