Re: [PATCH v4 net-next 2/9] i40e: respect metadata on XSK Rx to skb

[Nguyen, Anthony L]

On Thu, 2021-12-09 at 18:38 +0100, Alexander Lobakin wrote:
> From: Jesper Dangaard Brouer <jbrouer@xxxxxxxxxx>
> Date: Thu, 9 Dec 2021 09:27:37 +0100
> 
> > On 08/12/2021 15.06, Alexander Lobakin wrote:
> > > For now, if the XDP prog returns XDP_PASS on XSK, the metadata
> > > will
> > > be lost as it doesn't get copied to the skb.
> > 
> > I have an urge to add a newline here, when reading this, as IMHO it
> > is a 
> > paragraph with the problem statement.
> > 
> > > Copy it along with the frame headers. Account its size on skb
> > > allocation, and when copying just treat it as a part of the frame
> > > and do a pull after to "move" it to the "reserved" zone.
> > 
> > Also newline here, as next paragraph are some extra details, you
> > felt a 
> > need to explain to the reader.
> > 
> > > net_prefetch() xdp->data_meta and align the copy size to speed-up
> > > memcpy() a little and better match i40e_costruct_skb().
> >                                       ^^^^^^xx^^^^^^^^^
> > 
> > commit messages.
> 
> Oh gosh, I thought I don't have attention deficit. Thanks, maybe
> Tony will fix it for me or I could send a follow-up (or resend if
> needed, I saw those were already applied to dev-queue).

If there's no need for follow-ups beyond this change, I'll fix it up.

Thanks,
Tony

> > --Jesper
> 
> Al