netdev - Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs via page

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Message-ID: <20181208210648.GC22126@1wt.eu>
Date:   Sat, 8 Dec 2018 22:06:48 +0100
From:   Willy Tarreau <w@....eu>
To:     Ilias Apalodimas <ilias.apalodimas@...aro.org>
Cc:     Jesper Dangaard Brouer <brouer@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Florian Westphal <fw@...len.de>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Toke Høiland-Jørgensen <toke@...e.dk>,
        ard.biesheuvel@...aro.org, Jason Wang <jasowang@...hat.com>,
        BjörnTöpel <bjorn.topel@...el.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        mykyta.iziumtsev@...il.com,
        Daniel Borkmann <borkmann@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Tariq Toukan <tariqt@...lanox.com>
Subject: Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs
 via page_pool API

On Sat, Dec 08, 2018 at 10:14:47PM +0200, Ilias Apalodimas wrote:
> On Sat, Dec 08, 2018 at 09:11:53PM +0100, Jesper Dangaard Brouer wrote:
> > >  
> > > I want to make sure you guys thought about splice() stuff, and
> > > skb_try_coalesce(), and GRO, and skb cloning, and ...
> > 
> > Thanks for the pointers. To Ilias, we need to double check skb_try_coalesce()
> > code path, as it does look like we don't handle this correctly.
> > 
> 
> Noted. We did check skb cloning, but not this one indeed

I'll try to run some tests on my clearfog later, but for now I'm still
100% busy until haproxy 1.9 gets released.

Cheers,
Willy