atom feed43 messages in org.freebsd.freebsd-archRe: Extending sys/dev/mii
FromSent OnAttachments
Stefan BethkeJan 4, 2012 8:03 am 
Adrian ChaddJan 4, 2012 9:07 am 
Marius StroblJan 4, 2012 1:59 pm 
Stefan BethkeJan 5, 2012 12:52 pm 
Stefan BethkeJan 6, 2012 4:56 am 
Stefan BethkeJan 6, 2012 5:02 am.diff
Marius StroblJan 6, 2012 10:27 am 
Stefan BethkeJan 6, 2012 12:35 pm 
Marius StroblJan 6, 2012 1:47 pm 
Stefan BethkeJan 6, 2012 1:52 pm 
Marius StroblJan 8, 2012 5:00 am 
Stefan BethkeJan 8, 2012 2:27 pm 
Adrian ChaddJan 10, 2012 5:18 pm 
Marius StroblJan 11, 2012 11:37 am 
Adrian ChaddJan 14, 2012 8:15 pm 
Warner LoshJan 14, 2012 9:13 pm 
Stefan BethkeJan 20, 2012 3:08 pm.patch
Warner LoshJan 20, 2012 5:43 pm 
Oleksandr TymoshenkoJan 20, 2012 8:12 pm 
Stefan BethkeJan 21, 2012 4:02 am 
Aleksandr RybalkoJan 21, 2012 5:12 am 
Oleksandr TymoshenkoJan 23, 2012 11:45 pm 
Aleksandr RybalkoJan 24, 2012 5:53 am 
Marius StroblJan 25, 2012 2:17 pm 
Warner LoshJan 25, 2012 2:28 pm 
Marius StroblJan 25, 2012 3:21 pm 
Hans Petter SelaskyJan 26, 2012 8:24 am 
Stefan BethkeJan 26, 2012 8:24 am 
Stefan BethkeJan 26, 2012 8:30 am 
Marius StroblJan 27, 2012 6:15 am 
Adrian ChaddFeb 10, 2012 9:22 pm 
Marius StroblFeb 11, 2012 3:17 am 
Aleksandr RybalkoFeb 11, 2012 4:45 am 
Adrian ChaddFeb 11, 2012 4:59 pm 
Warner LoshFeb 11, 2012 5:15 pm 
Adrian ChaddFeb 11, 2012 8:48 pm 
Warner LoshFeb 11, 2012 8:58 pm 
Juli MallettFeb 11, 2012 9:05 pm 
Adrian ChaddFeb 11, 2012 9:19 pm 
Aleksandr RybalkoFeb 12, 2012 9:51 am 
Aleksandr RybalkoFeb 12, 2012 10:04 am 
Juli MallettFeb 12, 2012 10:30 am 
Aleksandr RybalkoFeb 12, 2012 10:38 am 
Subject:Re: Extending sys/dev/mii
From:Juli Mallett (jmal@FreeBSD.org)
Date:Feb 11, 2012 9:05:47 pm
List:org.freebsd.freebsd-arch

On Sat, Feb 11, 2012 at 20:59, Warner Losh <im@bsdimp.com> wrote:

The trouble in this whole mess (where FDT may help) is that phy's for arge0 may actually sit on arge1. So you can't probe/attach the miibus on arge0 until you've probe/attached arge1, so the arge1 MII registers can be tickled.

The PHYs don't sit on arge1.  They sit on another device that the driver bogusly
assumes is tightly coupled to arge1, when in fact it isn't.

YES! Thank you! And even if it were tightly coupled in hardware, there's no reason our device tree needs to mirror that, FDT or not. Just break out an "arge controller" device, attach arge0 and arge1 to it, and let it manage the MDIO bus. No shortcomings, as far as I can tell. You can even be extra clever and say that the switch is attached to that device, not either of the arge devices, and that one of the arge devices happens to be connected to the switch's CPU/host port. But that's probably a bit much to ask for.

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