Re: [RFC PATCH 0/3] Enable connecting DSA-based switch to the USB RMII interface.

From: Florian Fainelli
Date: Tue Apr 21 2015 - 13:52:24 EST


On 21/04/15 10:39, Andrew Lunn wrote:
>>> I would however say that sysfs is the wrong API. The linux network
>>> stack uses netlink for most configuration activities. So i would
>>> suggest adding a netlink binding to DSA, and place the code in
>>> net/dsa/, not within an MDIO driver.
>>
>> I suppose we could do that, but that sounds like a pretty radical change
>> in how DSA is currently configured (that is statically at boot time),
>> part in order to allow booting from DSA-enabled network devices (e.g:
>> nfsroot).
>
> We would keep both DT and platform device. But statically at boot does
> not work for a USB hotpluggable switch!

Is the switch really hotpluggable, or it is the USB-Ethernet adapter
connecting to it? If the former, then I agree, if not, I would imagine
that there is nothing that prevents creating the switch device first,
and wait for its "master_netdev" to show up later before it starts doing
anything useful?
--
Florian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/