[Intel-wired-lan] [PATCH v4 0/4] i40e: Support for XDP

[John Fastabend <john.fastabend@gmail.com>]

On 17-02-01 01:32 PM, Alexander Duyck wrote:
> On Tue, Jan 31, 2017 at 2:30 PM, Bj?rn T?pel <bjorn.topel@gmail.com> wrote:
>> 2017-01-31 22:37 GMT+01:00 Alexander Duyck <alexander.duyck@gmail.com>:
>>> We probably need to respin this and do a v5 of the XDP code so that we
>>> can reserve some headroom at the start of the frames.  I have patches
>>> I already working on to enable build_skb like I have done for igb and
>>> ixgbe.  I can probably take on respinning this and getting it applied
>>> to our out-of-tree driver.
>>
>> Respinning or an additional patch for the xdp_adjust_head()
>> support? Maybe it's better to respin it, so we get proper
>> xdp_adjust_head() support, prior upstreaming.
> 
> It makes the upstreaming process easier for us since we normally work
> out of tree and then upstream patches after testing in the case of
> i40e.
> 

Any hints on when we can expect a v5 to show up? I have a few folks
pulling these outside Intel that are waiting to get these patches.

>> If headroom support for XDP aligns nicely into your build_skb
>> patches for i40e, feel free to do that! If not, let me know, and
>> I'll start working on it.
> 
> Yeah, I'll be working on providing headroom in order to support
> build_skb anyway so I can just combine the efforts.  Then it makes the
> upstreaming effort easier as well as we will have the headroom added
> before we actually start work on XDP.
> 
> Thanks.
> 
> - Alex
>