netdev - Re: [PATCH net-next 2/3] net: nixge: Add support for having nixge as subdevice

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Date:   Thu, 30 Aug 2018 05:11:10 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Moritz Fischer <mdf@...nel.org>
Cc:     davem@...emloft.net, keescook@...omium.org, f.fainelli@...il.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        alex.williams@...com
Subject: Re: [PATCH net-next 2/3] net: nixge: Add support for having nixge as
 subdevice

On Wed, Aug 29, 2018 at 05:40:45PM -0700, Moritz Fischer wrote:
> Add support for instantiating nixge as subdevice using
> fixed-link and platform data to configure it.
> 
> Signed-off-by: Moritz Fischer <mdf@...nel.org>
> ---
> 
> Hi,
> 
> not this patch is still in the early stages,
> and as the rest of this series goes on top of [1].
> 
> The actual platform data might still change since
> the parent device driver is still under development.

Hi Moritz

Could you tell us more about the parent device. I'm guessing PCIe.  Is
it x86 so no device tree? Are there cases where it does not have a PHY
connected? What is connected instead? SFP? A switch? Can there be
multiple PHYs on the MDIO bus?

Answering these questions will help decide how best to structure this.

	 Andrew