netdev - Re: [PATCH 0/9] net: ethernet: mtk_eth

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Date:   Sat, 04 Feb 2023 12:08:07 +0100
From:   Bjørn Mork <bjorn@...k.no>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        DENG Qingfang <dqfext@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Jianhui Zhao <zhaojh329@...il.com>
Subject: Re: [PATCH 0/9] net: ethernet: mtk_eth_soc: various enhancements

Daniel Golle <daniel@...rotopia.org> writes:

> This series brings a variety of fixes and enhancements for mtk_eth_soc,
> adds support for the MT7981 SoC and facilitates sharing the SGMII PCS
> code between mtk_eth_soc and mt7530.

Thanks! I've now successfully tested this on an MT7986 board with 2.5G
phys (GPY211C) connected to one of the mtk_eth_soc macs and on port 5 of
the the MT7531.  The series fixes a number of issues for me, including a
mysterious packet drop at 1G only which I believe is related to the
undocumented MAC_MCR_BIT_12 in patch 5.

With Vladimir's (WiP?) "PCS and PHY in-band sync" patch set and your
related implementations in mxl-gpy, mt7530 and mtk_eth_soc to top of
this series, both 2.5G ports are now usable at any speed.

Note that the mt7530.c part of the series depends on 
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git/commit/?id=697c3892d825fb78f42ec8e53bed065dd728db3e
which is not yet in net-next. It appears to be destined for v6.2 so this
is not a problem.  Just mentioning it in case someone else is struggling
with the testing of this series.

Feel free to add

Tested-by: Bjørn Mork <bjorn@...k.no>

to the complete series.

Bjørn