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Message-ID: <20210706155131.GS22278@shell.armlinux.org.uk>
Date:   Tue, 6 Jul 2021 16:51:31 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Matteo Croce <mcroce@...ux.microsoft.com>
Cc:     Yunsheng Lin <linyunsheng@...wei.com>, mw@...ihalf.com,
        Sven Auhagen <sven.auhagen@...eatech.de>, davem@...emloft.net,
        kuba@...nel.org, linuxarm@...neuler.org, yisen.zhuang@...wei.com,
        salil.mehta@...wei.com, thomas.petazzoni@...tlin.com,
        hawk@...nel.org, ilias.apalodimas@...aro.org, ast@...nel.org,
        daniel@...earbox.net, john.fastabend@...il.com,
        akpm@...ux-foundation.org, peterz@...radead.org, will@...nel.org,
        willy@...radead.org, vbabka@...e.cz, fenghua.yu@...el.com,
        guro@...com, peterx@...hat.com, feng.tang@...el.com, jgg@...pe.ca,
        mcroce@...rosoft.com, hughd@...gle.com, jonathan.lemon@...il.com,
        alobakin@...me, willemb@...gle.com, wenxu@...oud.cn,
        cong.wang@...edance.com, haokexin@...il.com, nogikh@...gle.com,
        elver@...gle.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH net-next RFC 0/2] add elevated refcnt support for page
 pool

On Fri, Jul 02, 2021 at 03:39:47PM +0200, Matteo Croce wrote:
> On Wed, 30 Jun 2021 17:17:54 +0800
> Yunsheng Lin <linyunsheng@...wei.com> wrote:
> 
> > This patchset adds elevated refcnt support for page pool
> > and enable skb's page frag recycling based on page pool
> > in hns3 drvier.
> > 
> > Yunsheng Lin (2):
> >   page_pool: add page recycling support based on elevated refcnt
> >   net: hns3: support skb's frag page recycling based on page pool
> > 
> >  drivers/net/ethernet/hisilicon/hns3/hns3_enet.c    |  79 +++++++-
> >  drivers/net/ethernet/hisilicon/hns3/hns3_enet.h    |   3 +
> >  drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c |   1 +
> >  drivers/net/ethernet/marvell/mvneta.c              |   6 +-
> >  drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c    |   2 +-
> >  include/linux/mm_types.h                           |   2 +-
> >  include/linux/skbuff.h                             |   4 +-
> >  include/net/page_pool.h                            |  30 ++-
> >  net/core/page_pool.c                               | 215
> > +++++++++++++++++---- 9 files changed, 285 insertions(+), 57
> > deletions(-)
> > 
> 
> Interesting!
> Unfortunately I'll not have access to my macchiatobin anytime soon, can
> someone test the impact, if any, on mvpp2?

I'll try to test. Please let me know what kind of testing you're
looking for (I haven't been following these patches, sorry.)

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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