linux-kernel - Re: [PATCH net-next] r8152: modify rtl8152_set

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Message-ID: <56675c6b-c792-245e-54d0-eacd50e7a139@gmail.com>
Date:   Tue, 3 Sep 2019 08:44:44 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Hayes Wang <hayeswang@...ltek.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Cc:     nic_swsd <nic_swsd@...ltek.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next] r8152: modify rtl8152_set_speed function

On 03.09.2019 08:36, Hayes Wang wrote:
> Heiner Kallweit [mailto:hkallweit1@...il.com]
>> Sent: Tuesday, September 03, 2019 2:14 PM
> [...]
>>>> Seeing all this code it might be a good idea to switch this driver
>>>> to phylib, similar to what I did with r8169 some time ago.
>>>
>>> It is too complex to be completed for me at the moment.
>>> If this patch is unacceptable, I would submit other
>>> patches first. Thanks.
>>>
>> My remark isn't directly related to your patch and wasn't
>> meant as an immediate ToDo. It's just a hint, because I think
>> using phylib could help to significantly simplify the driver.
> 
> I would schedule this in my work. Maybe I finish submitting
> the other patches later.
> 
> Besides, I have a question. I think I don't need rtl8152_set_speed()
> if I implement phylib. However, I need to record some information
> according to the settings of speed. For now, I do it in rtl8152_set_speed().
> Do you have any idea about how I should do it with phylib without
> rtl8152_set_speed()?
> 
When saying "record some information", what kind of information?
The speed itself is stored in struct phy_device, if you need to adjust
certain chip settings depending on negotiated speed, then you can do
this in a callback (parameter handler of phy_connect_direct).
See e.g. r8169_phylink_handler()

> Best Regards,
> Hayes
> 
> 

Heiner