Date: Thu, 26 Jan 2012 17:30:51 +0100 From: Stefan Bethke <stb@lassitu.de> To: Marius Strobl <marius@alchemy.franken.de> Cc: FreeBSD-arch <freebsd-arch@freebsd.org> Subject: Re: Extending sys/dev/mii Message-ID: <AF2CF7A4-27B8-4181-96F5-7998B126CD1C@lassitu.de> In-Reply-To: <20120125221753.GA17821@alchemy.franken.de> References: <47ABA638-7E08-4350-A03C-3D4A23BF2D7E@lassitu.de> <1763C3FF-1EA0-4DC0-891D-63816EBF4A04@lassitu.de> <20120106182756.GA88161@alchemy.franken.de> <95372FB3-406F-46C2-8684-4FDB672D9FCF@lassitu.de> <20120106214741.GB88161@alchemy.franken.de> <F60B2B70-049F-4497-BBA8-3C421088C1EA@lassitu.de> <20120108130039.GG88161@alchemy.franken.de> <23477898-8D85-498C-8E30-192810BD68A8@lassitu.de> <20120111193738.GB44286@alchemy.franken.de> <66DDA0A2-F878-43FF-8824-54868F493B18@lassitu.de> <20120125221753.GA17821@alchemy.franken.de>
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Am 25.01.2012 um 23:17 schrieb Marius Strobl: > Yes, it assumes IEEE 802.3-compliant devices and usecases. If you > throw out all the things like auto-probing via ID registers, out- > detection of media via the BMSR and so and which makes miibus(4) > the generic PHY handling framework that it is or work around them, > I hardly can think of much that would be left that justifies using > miibus(4) in the first place though. Can't we just build another > framework which handles all the other stuff that also just happens > to have an MDIO interface and attach it instead? The problem with that is that for f.e. the RTL8306, the switch and the = PHYs coexist on the same MDIO bus, so some form of interoperation is = required. Don't get me wrong, my post was not meant to suggest that the current = miibus code must be scratched or even significantly changed, I just = wanted to document the limitations I discovered. What I would like to do is make my new mdio bus driver into a = full-fledged bus, and then maybe see if miibus can be extended to work = with it more naturally than through the miiproxy adapter driver. Stefan --=20 Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
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