netdev - Re: [PATCH net-next v2 0/2] Enable 2.5Gbps speed for stmmac

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Message-ID: <YG2pN8uupbXP7xqU@lunn.ch>
Date:   Wed, 7 Apr 2021 14:44:39 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     "Voon, Weifeng" <weifeng.voon@...el.com>
Cc:     "Sit, Michael Wei Hong" <michael.wei.hong.sit@...el.com>,
        "peppe.cavallaro@...com" <peppe.cavallaro@...com>,
        "alexandre.torgue@...com" <alexandre.torgue@...com>,
        "joabreu@...opsys.com" <joabreu@...opsys.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "Ong, Boon Leong" <boon.leong.ong@...el.com>,
        "qiangqing.zhang@....com" <qiangqing.zhang@....com>,
        "Wong, Vee Khee" <vee.khee.wong@...el.com>,
        "fugang.duan@....com" <fugang.duan@....com>,
        "Chuah, Kim Tatt" <kim.tatt.chuah@...el.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>
Subject: Re: [PATCH net-next v2 0/2] Enable 2.5Gbps speed for stmmac

> Intel mgbe is flexible to pair with any PHY. Only Aquantia/Marvell
> multi-gige PHY can do rate adaption right?

The Marvell/Marvell multi-gige PHY can also do rate
adaptation. Marvell buying Aquantia made naming messy :-(
I should probably use part numbers.

> Hence, we still need to take care of others PHYs.

Yes, it just makes working around the broken design harder if you want
to get the most out of the hardware.

   Andrew