netdev - Re: [PATCH v5 net-next 1/3] net: introduce page_pool pointer in softnet

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Date: Tue, 19 Dec 2023 16:23:58 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Ilias Apalodimas <ilias.apalodimas@...aro.org>, hawk@...nel.org
Cc: lorenzo.bianconi@...hat.com, davem@...emloft.net, kuba@...nel.org, 
	edumazet@...gle.com, bpf@...r.kernel.org, toke@...hat.com, 
	willemdebruijn.kernel@...il.com, jasowang@...hat.com, sdf@...gle.com, 
	netdev@...r.kernel.org, Lorenzo Bianconi <lorenzo@...nel.org>
Subject: Re: [PATCH v5 net-next 1/3] net: introduce page_pool pointer in
 softnet_data percpu struct

On Thu, 2023-12-14 at 15:29 +0100, Lorenzo Bianconi wrote:
> Allocate percpu page_pools in softnet_data.
> Moreover add cpuid filed in page_pool struct in order to recycle the
> page in the page_pool "hot" cache if napi_pp_put_page() is running on
> the same cpu.
> This is a preliminary patch to add xdp multi-buff support for xdp running
> in generic mode.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---
>  include/linux/netdevice.h       |  1 +
>  include/net/page_pool/helpers.h |  5 +++++
>  include/net/page_pool/types.h   |  1 +
>  net/core/dev.c                  | 39 ++++++++++++++++++++++++++++++++-
>  net/core/page_pool.c            |  5 +++++
>  net/core/skbuff.c               |  5 +++--
>  6 files changed, 53 insertions(+), 3 deletions(-)

@Jesper, @Ilias: could you please have a look at the pp bits?

Thanks!

Paolo