OT: OEM problems with aic79xx drivers

[M A Young]

On Mon, 12 Jan 2004, Stephen Smoogen wrote:

> Well after spending more time than I should trying to shoehorn the
> latest AIC79xx driver into the last 2.4.20 kernel.. and remembering that
> Doug Ledford had hair before he started working on the driver... I
> decided it was time to look for help.
>
> So if anyone else runs into this problem supporting 7.x machines.. here
> is what I am trying to do to see if it fixes the problem:
>
> 1) Turn off packetization
> 2) Compiling a standard kernel with a SCB lenght of 32 versus teh
> default of 253.
> 3) Waving a magic chicken foot at the machines.

I reckon 2 is your best bet, indeed recent Fedora/Redhat kernels use SCB
length 32, and it is the default for mainline kernels. (It might be
possible to force this value in the initrd somewhere even it isn't set in
the kernel).
The other thing to try is to get the latest source from
http://people.freebsd.org/~gibbs/linux/
But setting CONFIG_AIC7{X,9}XX_CMDS_PER_DEVICE to 32 is still a good idea.

	Michael Young