linux-kernel - Re: [PATCH v3] net: ethernet: mediatek: ppe: add support for flow accounting

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Message-ID: <Y2G/CaPrTVsYeGWB@lunn.ch>
Date:   Wed, 2 Nov 2022 01:51:21 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] net: ethernet: mediatek: ppe: add support for flow
 accounting

On Wed, Nov 02, 2022 at 12:42:40AM +0000, Daniel Golle wrote:
> The PPE units found in MT7622 and newer support packet and byte
> accounting of hw-offloaded flows. Add support for reading those
> counters as found in MediaTek's SDK[1].
> 
> [1]: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/bc6a6a375c800dc2b80e1a325a2c732d1737df92
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>

Sorry, but NACK.

You have not explained why doing this correctly via ethtool -S cannot
be done. debugfs is a vendor crap way of doing this.

   Andrew