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Wed, 7 Jul 2021 12:53:38 -0400 Received: from mail-qk1-x72b.google.com (mail-qk1-x72b.google.com [IPv6:2607:f8b0:4864:20::72b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9E9E3C061762 for ; Wed, 7 Jul 2021 09:50:57 -0700 (PDT) Received: by mail-qk1-x72b.google.com with SMTP id 77so862545qkk.11 for ; Wed, 07 Jul 2021 09:50:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=+l8T0NV1W2EFm1dKAG471xyxn7DWyeb0DjrbpB/+e3k=; b=FeKmsw2+/cti+7XaCDgvJURDocUATJdLYv3FDD/2Y1khq8vDyglm6gIN1jBFXwBgwB oEsuqrSJn0o6PZ8XKKantmakJcS42as18I5GSOfewmfqycZ2tZ483gndigPuq7tThC48 5WU0Fq9Hktr8c4EVqVIc3H/cWvsOicXQf41e8uUGuymx2Mg8tX9d+W+oIL2wiLSLR9ju rOeukSo28QD43WY+hVMr1piMVGhyI3SkWXx/no5+P2IKQNiK83UgnF9Iuo20AovmFKDX 50dvBf1FoQKCXKQjZCIx1Jq+aI5DzJLa3MJy9crg7qMnSOscw/+RJsJdEA2QB9Zh+H8k awTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=+l8T0NV1W2EFm1dKAG471xyxn7DWyeb0DjrbpB/+e3k=; b=BE0zq+77iPMPhESinuvew3bAOozAMM8rQSyMW7hKTSQRgUDibiZ2o2BkKblbZEMS0j pttwFUs2WBd5vHo84uJyWfy2rRqUwbqNGtowE8om8heC4aNyVgexvw70WcmOn+hGixva /KEPRjN7Gv4e3qXyr02BoV4bnB3YG4FgPRNSL5DUTHvXU2y/HO0nx70G2tglO8Gb3FBh vGB1WYL17nGpo4yMK7p0FDALaNOOz9jiGQyuQtCUzZ/8OB3IsVs/9F9JgLO2M5IpsiOd 48n2Azot0pqMnjYqnkwHEraoMLWS5omBTM3YrqfZWDFes5XTimDesTrA7YfYlj9xBUPv aX3A== X-Gm-Message-State: AOAM532mVt3nKwD3VzcLhysfwHjHrvPOY+K4Eq9CB9NTFDDqEHPi7YYH H7LkdUIS8UvvBfDOBXsCF3B1HHBUi72eo1/grD57qQ== X-Google-Smtp-Source: ABdhPJz27A76SeAyJWGygXJLAWImPup40+dr2a2Qng83jiPEyrMFJhB2OOcqXf5MT8M+UbL3ZLlBgKHZhBYaKRgrBL4= X-Received: by 2002:a37:c52:: with SMTP id 79mr18962846qkm.295.1625676656506; Wed, 07 Jul 2021 09:50:56 -0700 (PDT) MIME-Version: 1.0 References: <1625044676-12441-1-git-send-email-linyunsheng@huawei.com> <20210702153947.7b44acdf@linux.microsoft.com> <20210706155131.GS22278@shell.armlinux.org.uk> In-Reply-To: From: Marcin Wojtas Date: Wed, 7 Jul 2021 18:50:49 +0200 Message-ID: Subject: Re: [PATCH net-next RFC 0/2] add elevated refcnt support for page pool To: Matteo Croce Cc: "Russell King (Oracle)" , Yunsheng Lin , Sven Auhagen , David Miller , Jakub Kicinski , linuxarm@openeuler.org, yisen.zhuang@huawei.com, salil.mehta@huawei.com, Thomas Petazzoni , Jesper Dangaard Brouer , Ilias Apalodimas , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrew Morton , Peter Zijlstra , Will Deacon , Matthew Wilcox , Vlastimil Babka , Fenghua Yu , Roman Gushchin , Peter Xu , feng.tang@intel.com, Jason Gunthorpe , Matteo Croce , Hugh Dickins , Jonathan Lemon , Alexander Lobakin , Willem de Bruijn , wenxu , Cong Wang , Kevin Hao , Aleksandr Nogikh , Marco Elver , netdev@vger.kernel.org, Linux Kernel Mailing List , bpf@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi, =C5=9Br., 7 lip 2021 o 01:20 Matteo Croce napi= sa=C5=82(a): > > On Tue, Jul 6, 2021 at 5:51 PM Russell King (Oracle) > 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 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, c= an > > > 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. I have a 10G packet generator connected to 10G ports of CN913x-DB - I will stress mvpp2 in l2 forwarding early next week (I'm mostly AFK this until Monday). Best regards, Marcin