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author | John Fastabend <john.fastabend@gmail.com> | 2017-07-17 09:26:45 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-07-17 09:48:05 -0700 |
commit | d445516966dcb2924741b13b27738b54df2af01a (patch) | |
tree | a93bc06b2cf7176add789cc2368a029d9bafcab6 /include/linux | |
parent | 90382dca61137444cb8f639db0a76c4d084763d7 (diff) | |
download | lwn-d445516966dcb2924741b13b27738b54df2af01a.tar.gz lwn-d445516966dcb2924741b13b27738b54df2af01a.zip |
net: xdp: support xdp generic on virtual devices
XDP generic allows users to test XDP programs and/or run them with
degraded performance on devices that do not yet support XDP. For
testing I typically test eBPF programs using a set of veth devices.
This allows testing topologies that would otherwise be difficult to
setup especially in the early stages of development.
This patch adds a xdp generic hook to the netif_rx_internal()
function which is called from dev_forward_skb(). With this addition
attaching XDP programs to veth devices works as expected! Also I
noticed multiple drivers using netif_rx(). These devices will also
benefit and generic XDP will work for them as well.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Andy Gospodarek <andy@greyhouse.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions