netdev - Re: [PATCH] net: add regs attribute to phy device for user diagnose

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Message-ID: <20170119010142.GB26959@lunn.ch>
Date:   Thu, 19 Jan 2017 02:01:42 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     YUAN Linyu <Linyu.Yuan@...atel-sbell.com.cn>
Cc:     Zefir Kurtisi <zefir.kurtisi@...atec.com>,
        David Miller <davem@...emloft.net>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "cugyly@....com" <cugyly@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] net: add regs attribute to phy device for user diagnose

> I will add two ethtool command in kernel to read and write register in PHY. 

Write access will get NACKed by me. Read only please.

> ethtool can use these command to dump what user want, there is no
> more work to PHY driver.

Please think about how you handle PHYs with pages. This needs to be
part of the API.

     Andrew