Re: lock down tulip driver

I have a diff of my patched tulip_core.c if you
are interested?
Jim
On Thu, May 15, 2003 at 01:44:22PM -0400, Donald Becker wrote:
> On Thu, 15 May 2003, James H. Laros wrote:
> 
> > Thanks but ultimately I would like to lock it down
> > in the source itself. I used to do this for our
> > clusters to avoid autonegotiation problems. I am
> > trying to dig up what I did previously to see if
> > it still applies to the new drivers. 
> 
> Read
>    http://www.scyld.com/network/tulip.html
> for the module options.
> 
> This isn't as clean as using the ioctl() from mii-diag.  There the
> driver interprets the setting to work with either the internal
> transceiver or an external transceiver.
> 
> When you pass a module option (or the equivalent kernel parameter) you
> simultaneously force the
>    specific transceiver connection and type
>    speed
>    duplex
> That's because module options are intended to work around hardware bugs or
> non-standard-conforming installations, rather than be a general
> configuration mechanism.
> 
> > >   mii-diag -F 100baseTx
> > By the way it seems that I wasn't specific. I want
> > autonegotiation turned off.
> 
> The '-F' flag forces the speed and duplex, which implicitly turns off
>   autonegotiation.
> The '-A' flag limits autonegotiation, which has very specific
>   semantics.  Those semantic might not make sense to someone that hasn't
>   thought through the issues.
>      http://scyld.com/expert/NWay.html
> 
> -- 
> Donald Becker				[email protected]
> Scyld Computing Corporation		http://www.scyld.com
> 914 Bay Ridge Road, Suite 220		Scyld Beowulf cluster system
> Annapolis MD 21403			410-990-9993
> 
> 

-- 
______________________________________________________________

James Laros ............................... [email protected]
Dept. 09224
Scalable Systems Integration .............. PHONE:505.845.8532
Sandia National Labs ........................ FAX:505.845.7442
______________________________________________________________

	I say my prayers, and light myself on fire,
	walk out on the wire once again.
					       -Counting Crows

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