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From: Stefan Bethke <stb@lassitu.de>
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Date: Sun, 29 Jan 2012 13:49:24 +0100
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To: Aleksandr Rybalko <ray@ddteam.net>
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Cc: Juli Mallett <jmallett@FreeBSD.org>, FreeBSD Net <freebsd-net@freebsd.org>,
	Adrian Chadd <adrian@freebsd.org>, Aleksandr Rybalko <ray@freebsd.org>,
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Subject: Re: Ethernet Switch Framework
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Am 29.01.2012 um 13:44 schrieb Aleksandr Rybalko:

>> The MII connection between the ethernet controller and the switch
>> chip (usually referred to as the "CPU" port) is hard-coded and has no
>> media settings, so there's no question what if_media settings should
>> be presented on the interface.
>=20
> Most switches (AR8x16 for example) have configurable MII port, so you
> can choose to use MII/RMII/GMII/RGMII. If you decide to use MII
> media can not be higher than 100baseTX. So it is possible to use some
> auto-negotiation here.

The point is that the admin has no need to change it, it's hard coded in =
the driver or statically configured via hints.  And for all of this =
discussion, I'm using MII as a synonym for all xMII busses.


Stefan

--=20
Stefan Bethke <stb@lassitu.de>   Fon +49 151 14070811