[vortex] 3com 3c905C-TX driver bug: incorrect FLOW Control, speed using MII..

[Will Richmond]

WILL: Don, thanks for reply, my comments are also embedded:

>> We are experiencing what appears to be a bug in the 3com 
>> 3c905C-TX drivers for redhat linux enterprise version 7.X. 
>> Our Cisco...
>
>When I read Cisco, I think duplex mismatch
>Read
>   http://www.cisco.com/warp/public/473/46.html

WILL: we try to stick to row four (4) of the "Cisco Valid 
Configuration Table", which is GOOD, according to cisco--
normally. In our wierd case (linux+3com 3c905c NIC), we can 
use row three (3), and all are happy, speed is fast, no 
duplex mismatch. I understand cisco warning however, as we 
have been bitten by this in the past, but in this case, it 
works. I don't like this config becasue its subject to reboot 
re-autoneg failures per cisco warning. But I don't like 
setting server switches to manual either. So my whole dilemma 
invloves trying to get 3com NIC to behave per row four (4) of 
this table.

>
>> ...and 3com switches are hardset for 100 FD, no flow 
>> control in either direction.
>
>Accckkkk!!!  Don't do that.  Read the URL above.  That's 
Cisco saying "Uhmmm, yeah, that thing we told you to do, 
uhmm, ignore that."

WILL: I scanned link and couldn't figure out what part about 
cisco's suggestion was retracted: flow control, or 
hardsetting? Hardset to autonegotiate change is not an option 
as many things fail when both ends are set to auto-neg. Flow 
control can be turned on, but I normally leave off.

>> We configured the network card settings using. MII. What 
exactly did you configure?

WILL: either set card to auto-neg, or set it to 100 FD. It 
seems like switch for flow control setting is not available. 
It almost seems like we set to 100, but really get 10, even 
though ifconfig shows card set to 100 FD.

>
>-- 
>Donald Becker				becker@scyld.com
>Scyld Computing Corporation		http://www.scyld.com
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