netdev - Re: [PATCH v3 01/11] net: phy: Add rockchip phy driver support

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Date:   Wed, 9 Aug 2017 15:01:16 +0800
From:   "David.Wu" <david.wu@...k-chips.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     davem@...emloft.net, heiko@...ech.de, f.fainelli@...il.com,
        robh+dt@...nel.org, mark.rutland@....com, catalin.marinas@....com,
        will.deacon@....com, olof@...om.net, linux@...linux.org.uk,
        arnd@...db.de, peppe.cavallaro@...com, alexandre.torgue@...com,
        huangtao@...k-chips.com, hwg@...k-chips.com,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 01/11] net: phy: Add rockchip phy driver support

Hi Andrew,

在 2017/8/2 21:21, Andrew Lunn 写道:
>> +static struct phy_driver rockchip_phy_driver[] = {
>> +{
>> +	.phy_id			= 0x1234d400,
>> +	.phy_id_mask		= 0xfffffff0,
>> +	.name			= "Rockchip internal EPHY",
>> +	.features		= (PHY_BASIC_FEATURES | SUPPORTED_Pause
>> +				   | SUPPORTED_Asym_Pause),
> 
> Please take a look at Documentation/networking/phy.txt and
> Fixes: 529ed1275263 ("net: phy: phy drivers should not set SUPPORTED_[Asym_]Pause")
> 
> Pause frames / flow control
> 
>   The PHY does not participate directly in flow control/pause frames except by
>   making sure that the SUPPORTED_Pause and SUPPORTED_AsymPause bits are set in
>   MII_ADVERTISE to indicate towards the link partner that the Ethernet MAC
>   controller supports such a thing. Since flow control/pause frames generation
>   involves the Ethernet MAC driver, it is recommended that this driver takes care
>   of properly indicating advertisement and support for such features by setting
>   the SUPPORTED_Pause and SUPPORTED_AsymPause bits accordingly. This can be done
>   either before or after phy_connect() and/or as a result of implementing the
>   ethtool::set_pauseparam feature.
> 

Thanks for the reminder, I'll remove it.

> 	Andrew
> 
> 
>