[Intel-wired-lan] [PATCH v4 0/4] i40e: Support for XDP
John Fastabend
john.fastabend at gmail.com
Thu Feb 2 22:20:05 UTC 2017
On 17-02-01 01:32 PM, Alexander Duyck wrote:
> On Tue, Jan 31, 2017 at 2:30 PM, Björn Töpel <bjorn.topel at gmail.com> wrote:
>> 2017-01-31 22:37 GMT+01:00 Alexander Duyck <alexander.duyck at 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
>
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