Re: [PATCH net-next RFC 0/2] add elevated refcnt support for page pool

[Matteo Croce]

On Tue, Jul 6, 2021 at 5:51 PM Russell King (Oracle)
<linux@xxxxxxxxxxxxxxx> wrote:
>
> 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@xxxxxxxxxx> 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.)
>

A drop test or L2 routing will be enough.
BTW I should have the macchiatobin back on friday.

Regards,
-- 
per aspera ad upstream