TL-WR1043: switch

[Aleksandr Rybalko]

On Sun, 11 Dec 2011 21:54:26 +0100
Stefan Bethke <stb at lassitu.de> wrote:

> Am 11.12.2011 um 21:28 schrieb Adrian Chadd:
> 
> > Hm, so - how does this expose the CPU facing port(s), if any?
> > 
> > ray@ is trying to figure out how to expose the arge0/arge1 interface
> > (as he's got at least one board where the switch PHY hangs off of
> > arge1, not arge0) so things are probed/attached "right".
> > 
> > That discussion may be worth having here. :)
> 
> The RTL8366 family of switches has a GMII interface to hook up an
> ethernet controller.  MDC/MDIO are not connected to the ethernet
> controller, instead register access is through this I2C-like
> interface, which on the TL-WR1043ND is through two GPIOs.
> 
> The RTL8306SD (which is used for example in the Linksys WRT160NL) has
> two MII ports. One is always used to connect a CPU, while the second
> one can be configured to either communicate with the switch or with
> one specific PHY.  I believe the WRT160NL uses the latter mode, using
> the first ethernet port of the CPU to talk to the switch ("LAN"), and
> the second one to the PHY ("WAN"). 
Heh, just like Atheros AR724x family :)

> It exposes both the five PHYs via
> MDC/MDIO, as well as switch configuration.  Unfortunately, the
> configuration registers are spread out over all the PHYs, so you
> can't cleanly isolate the PHYs from the switch portion.  Since the
> switch has only one set of MDC/MDIO, both ethernet controllers share
> the same minibus (and both driver instances need to work on just the
> one instance).  For arge1, using the appropriate phymask should be
> sufficient.
> 
> We already have PHY support for the similar RTL8305 in the tree
> (sys/dev/mii/rlswitch.c), which does configure the switch.  I haven't
> looked at how it handles the multiple exposed PHYs.
> 
> BTW, would it make sense to put all this info up on a wiki page
> somewhere?  I'm optimistic that we can flesh the code out in the next
> couple of weeks, but it would be sad to bury all the additional
> information just in the mailing list archives.
> 
> > Whats RTL8366RB_SGCR_EN_VLAN_4KTB do?
> 
> The switch also supports a mode where theres a configuration per VID,
> so it can support all possible VIDs (1-4094).  I cna add the code,
> but I don't think it really adds that many real-world functionality.
> 
> 
> Stefan
> 
> -- 
> Stefan Bethke <stb at lassitu.de>   Fon +49 151 14070811
> 
> 
> 
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P.S. Stefan, I was add some description for switch framework, hope it
will clear a bit how it works :)

http://zrouter.org/hg/FreeBSD/head/file/default/head/sys/dev/switch/README

WBW
-- 
Aleksandr Rybalko <ray at ddteam.net>