On Sat, 3 Dec 2016 19:19:58 -0800, Martin KaFai Lau wrote:
> AFAIK, only mlx4/5 supports XDP now.
That is, unfortunately, not true.
$ git checkout net-next/master
$ git grep ndo_xdp drivers/
drivers/net/ethernet/mellanox/mlx4/en_netdev.c: .ndo_xdp=
mlx4_xdp,
drivers/net/ethernet/
On Mon, 2016-12-05 at 01:31 +0200, Saeed Mahameed wrote:
> Alexei, we should start considering PPC archs for XDP use cases,
> demanding page per packet on those archs is a little bit heavy
> requirement
Well, 'little' is an understatement ;)
Note that PPC had serious problems before commit bd68
On Sat, Dec 3, 2016 at 2:53 AM, Alexei Starovoitov wrote:
> On 12/2/16 4:38 PM, Eric Dumazet wrote:
>>
>> On Fri, 2016-12-02 at 15:23 -0800, Martin KaFai Lau wrote:
>>>
>>> When XDP prog is attached, it is currently limiting
>>> MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
>>> in
On Fri, Dec 02, 2016 at 04:07:09PM -0800, Rick Jones wrote:
> On 12/02/2016 03:23 PM, Martin KaFai Lau wrote:
> >When XDP prog is attached, it is currently limiting
> >MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
> >in x86.
> >
> >AFAICT, since mlx4 is doing one page per packet for
On Fri, 2016-12-02 at 19:42 -0800, Martin KaFai Lau wrote:
> On Fri, Dec 02, 2016 at 06:15:26PM -0800, Eric Dumazet wrote:
> > My question was more like :
> >
> > Can we double check all these patches wont break mlx4 driver (non XDP
> > path) on arches with PAGE_SIZE=64KB.
> The page/pkt requiremen
On Fri, Dec 02, 2016 at 06:15:26PM -0800, Eric Dumazet wrote:
> On Fri, 2016-12-02 at 16:53 -0800, Alexei Starovoitov wrote:
> > On 12/2/16 4:38 PM, Eric Dumazet wrote:
> > > On Fri, 2016-12-02 at 15:23 -0800, Martin KaFai Lau wrote:
> > >> When XDP prog is attached, it is currently limiting
> > >>
On Fri, 2016-12-02 at 16:53 -0800, Alexei Starovoitov wrote:
> On 12/2/16 4:38 PM, Eric Dumazet wrote:
> > On Fri, 2016-12-02 at 15:23 -0800, Martin KaFai Lau wrote:
> >> When XDP prog is attached, it is currently limiting
> >> MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
> >> in x
On 12/2/16 4:38 PM, Eric Dumazet wrote:
On Fri, 2016-12-02 at 15:23 -0800, Martin KaFai Lau wrote:
When XDP prog is attached, it is currently limiting
MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
in x86.
AFAICT, since mlx4 is doing one page per packet for XDP,
we can at least r
On Fri, 2016-12-02 at 15:23 -0800, Martin KaFai Lau wrote:
> When XDP prog is attached, it is currently limiting
> MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
> in x86.
>
> AFAICT, since mlx4 is doing one page per packet for XDP,
> we can at least raise the MTU limitation up to
>
On 12/02/2016 03:23 PM, Martin KaFai Lau wrote:
When XDP prog is attached, it is currently limiting
MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
in x86.
AFAICT, since mlx4 is doing one page per packet for XDP,
we can at least raise the MTU limitation up to
PAGE_SIZE - ETH_HLEN -
When XDP prog is attached, it is currently limiting
MTU to be FRAG_SZ0 - ETH_HLEN - (2 * VLAN_HLEN) which is 1514
in x86.
AFAICT, since mlx4 is doing one page per packet for XDP,
we can at least raise the MTU limitation up to
PAGE_SIZE - ETH_HLEN - (2 * VLAN_HLEN) which this patch is
doing. It wi
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