Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Fri, 2 Jul 2021 15:39:47 +0200
From:   Matteo Croce <mcroce@linux.microsoft.com>
To:     Yunsheng Lin <linyunsheng@huawei.com>, <mw@semihalf.com>,
        Sven Auhagen <sven.auhagen@voleatech.de>,
        Russell King <linux@armlinux.org.uk>
Cc:     <davem@davemloft.net>, <kuba@kernel.org>, <linuxarm@openeuler.org>,
        <yisen.zhuang@huawei.com>, <salil.mehta@huawei.com>,
        <thomas.petazzoni@bootlin.com>, <linux@armlinux.org.uk>,
        <hawk@kernel.org>, <ilias.apalodimas@linaro.org>, <ast@kernel.org>,
        <daniel@iogearbox.net>, <john.fastabend@gmail.com>,
        <akpm@linux-foundation.org>, <peterz@infradead.org>,
        <will@kernel.org>, <willy@infradead.org>, <vbabka@suse.cz>,
        <fenghua.yu@intel.com>, <guro@fb.com>, <peterx@redhat.com>,
        <feng.tang@intel.com>, <jgg@ziepe.ca>, <mcroce@microsoft.com>,
        <hughd@google.com>, <jonathan.lemon@gmail.com>, <alobakin@pm.me>,
        <willemb@google.com>, <wenxu@ucloud.cn>, <cong.wang@bytedance.com>,
        <haokexin@gmail.com>, <nogikh@google.com>, <elver@google.com>,
        <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <bpf@vger.kernel.org>
Subject: Re: [PATCH net-next RFC 0/2] add elevated refcnt support for page
 pool
Message-ID: <20210702153947.7b44acdf@linux.microsoft.com>
In-Reply-To: <1625044676-12441-1-git-send-email-linyunsheng@huawei.com>
References: <1625044676-12441-1-git-send-email-linyunsheng@huawei.com>
Organization: Microsoft
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Precedence: bulk

On Wed, 30 Jun 2021 17:17:54 +0800
Yunsheng Lin <linyunsheng@huawei.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?

Regards,
-- 
per aspera ad upstream