From: Florian Fainelli <f.fainelli@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Jan Kaisrlik <kaisrja1@fel.cvut.cz>,
sojkam1@fel.cvut.cz, tkonecny@retia.cz, netdev@vger.kernel.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Jan Kaisrlik <ja.kaisrlik@gmail.com>
Subject: Re: [RFC PATCH 0/3] Enable connecting DSA-based switch to the USB RMII interface.
Date: Tue, 21 Apr 2015 10:51:07 -0700 [thread overview]
Message-ID: <55368E0B.8060600@gmail.com> (raw)
In-Reply-To: <20150421173902.GL32294@lunn.ch>
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
next prev parent reply other threads:[~2015-04-21 17:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-21 13:26 [RFC PATCH 0/3] Enable connecting DSA-based switch to the USB RMII interface Jan Kaisrlik
2015-04-21 12:47 ` Andrew Lunn
2015-04-21 17:18 ` Florian Fainelli
2015-04-21 17:30 ` Andrew Lunn
2015-04-21 17:46 ` Florian Fainelli
2015-04-21 17:39 ` Andrew Lunn
2015-04-21 17:51 ` Florian Fainelli [this message]
2015-04-22 16:14 ` Jan Kaisrlik
2015-04-22 16:39 ` Andrew Lunn
2015-04-21 13:26 ` [RFC PATCH 1/3] net/dsa: Refactor dsa_probe() Jan Kaisrlik
2015-04-21 16:58 ` Florian Fainelli
2015-04-21 13:26 ` [RFC PATCH 2/3] net/dsa: Allow probing dsa from usbnet Jan Kaisrlik
2015-04-22 7:15 ` rajeev kumar
2015-04-21 13:26 ` [RFC PATCH 3/3] driver/net/usb: Add support for DSA to ax88772b Jan Kaisrlik
2015-04-21 13:10 ` Bjørn Mork
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