Re: 3c905b-combo - no traffic

[Greg Beeley <Greg.Beeley@LightSys.org>]

Lars Täuber wrote:
> I've got an 3c905b-combo card and put the needed data on a floppy to
> boot
> over network. the rom seems to be correctly loaded and the machine says
> that
> it seeks for a dhcp server.
> <sleep>
> <sleep>
> <sleep>
> ....
>  but the is nothing on the net (tcpdump). when i
> boot linux on the client the network is aviable and i can ping, telnet
> ....
> 
> what's wrong?

Hmmm... it's a shortcoming of the 3c90x driver -- with the combo card it
picks one of the available transceivers without actually doing a link
test as specified in the 3c905b spec manual (even the typical link beat
test isn't sufficient -- a "real" driver should send a self-directed 
packet over the transceiver and see if it comes back or not.  If it does,
the link is up).  I guess I'm a lazy driver writer :)

To work around it, set CFG_3C90X_XCVR to the appropriate value as listed
in src/3c90x.txt, when you build the ROM image.

Greg.

------------------------------------------------------------------------
Greg.Beeley@LightSys.org        LightSys - Redeeming Technology...
http://www.LightSys.org                    For God's Kingdom.
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