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
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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
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