commit ba2b232108d3c2951bab02930a00f23b0cffd5af
author Ilias Apalodimas <ilias.apalodimas@linaro.org> Sat Jun 29 08:23:25 2019 +0300
committer David S. Miller <davem@davemloft.net> Mon Jul 01 19:27:08 2019 -0700
tree 44f3634c61f1698ff8ed9a4f5d47bdbe70810f17
parent bb005f2a70742d66f8fe44d57e217c696e805d97

net: netsec: add XDP support

The interface only supports 1 Tx queue so locking is introduced on
the Tx queue if XDP is enabled to make sure .ndo_start_xmit and
.ndo_xdp_xmit won't corrupt Tx ring

- Performance (SMMU off)

Benchmark   XDP_SKB     XDP_DRV
xdp1        291kpps     344kpps
rxdrop      282kpps     342kpps

- Performance (SMMU on)
Benchmark   XDP_SKB     XDP_DRV
xdp1        167kpps     324kpps
rxdrop      164kpps     323kpps

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>