On 12/03/2016 08:32 PM, Martin KaFai Lau wrote:
On Sat, Dec 03, 2016 at 04:24:13PM +0100, Jesper Dangaard Brouer wrote:
On Fri, 2 Dec 2016 15:23:30 -0800
Martin KaFai Lau wrote:
-bool bpf_helper_changes_skb_data(void *func)
+BPF_CALL_2(bpf_xdp_adjust_head, struct xdp_buff *, xdp, int, offset)
On Sat, Dec 03, 2016 at 04:24:13PM +0100, Jesper Dangaard Brouer wrote:
> On Fri, 2 Dec 2016 15:23:30 -0800
> Martin KaFai Lau wrote:
>
> > -bool bpf_helper_changes_skb_data(void *func)
> > +BPF_CALL_2(bpf_xdp_adjust_head, struct xdp_buff *, xdp, int, offset)
> > +{
> > + /* Both mlx4 and mlx5 d
On Fri, 2 Dec 2016 15:23:30 -0800
Martin KaFai Lau wrote:
> -bool bpf_helper_changes_skb_data(void *func)
> +BPF_CALL_2(bpf_xdp_adjust_head, struct xdp_buff *, xdp, int, offset)
> +{
> + /* Both mlx4 and mlx5 driver align each packet to PAGE_SIZE when
> + * XDP prog is set.
> + * If
On Sat, Dec 03, 2016 at 01:22:05AM +0100, Daniel Borkmann wrote:
> On 12/03/2016 12:23 AM, Martin KaFai Lau wrote:
> >This patch allows XDP prog to extend/remove the packet
> >data at the head (like adding or removing header). It is
> >done by adding a new XDP helper bpf_xdp_adjust_head().
> >
> >
On 12/03/2016 12:23 AM, Martin KaFai Lau wrote:
This patch allows XDP prog to extend/remove the packet
data at the head (like adding or removing header). It is
done by adding a new XDP helper bpf_xdp_adjust_head().
It also renames bpf_helper_changes_skb_data() to
bpf_helper_changes_pkt_data() t
This patch allows XDP prog to extend/remove the packet
data at the head (like adding or removing header). It is
done by adding a new XDP helper bpf_xdp_adjust_head().
It also renames bpf_helper_changes_skb_data() to
bpf_helper_changes_pkt_data() to better reflect
that XDP prog does not work on sk
