Unfortunately, due to requirements laid out out of my control, I have to use
the RHEL5 distribution I was given from Redhat(part of a customer account).




-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of Jerry Cooperstein
Sent: Thursday, March 05, 2009 3:29 AM
To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: Re: [rhelv5-list] PCMCIA ethernet card on RHEL 5.2

Tom Sightler wrote:
>
> The 8139too driver included with RHEL5 uses MMIO by default but does
> include vendor strings for particular cards that only support PIO to
> force PIO mode on those device.  Unfortunately it doesn't look like your
> card is listed as a PIO only card so it simply tries MMIO and then
> aborts.
>
> There is actually a compile time flag that can be set to make the driver
> use PIO by default, however, it can't be changed at runtime in the
> version of the driver included with RHEL5 (more recent versions of the
> driver include a "use_io" module option that allow you to force PIO mode
> at driver load time by just adding an option to modprobe.conf).
>
> It probably wouldn't be too difficult to build a slightly newer version
> of the 8139too driver for the current kernel but I'm not sure how
> involved your wanting to get into this since that would require
> additional maintenance for future kernel updates.  If you want to try it
> let me know and I'll post some instructions.
>
> Later,
> Tom
>
>
> _______________________________________________
> rhelv5-list mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/rhelv5-list
>
>   
You'd probably find it less work to just compile and use any recent 
kernel, for which there
is a load time parameter for this card as pointed out above.  I 
guarantee backporting
a recent version of 8139too.c to a 2.6.18-based kernel (as in RHEL5) 
wJerrill be more work.

I have indeed a (different) PCMCIA card based on the 8139too and I never 
looked
into the details, but it does fail on RHEL5 kernels, but it worked with 
every custom
compiled kernel I've used for the last couple of years.
Jerry


-- 
======================================================================
Jerry Cooperstein, PhD        <[email protected]>
Senior Consultant              (608) 848-1507

Axian, Inc.              http://www.axian.com/
9600 SW Nimbus Avenue, Suite 200
Beaverton, OR  97008 USA
(503) 644-6106 
======================================================================

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