Tyan Thunder II

[Doug Ledford]

Grahame Jordan wrote:
> 
> Hi,
> 
> I have been trying to get 4 pci cards to live happily on a
> tyan thunder without much luck.
> 
> The problem is that the thunder grabbs an irq for each scssi channel.
> There is however a aic7xxx=7895_irq_hack:x kernel option that I
> thought would solve my problem, however when it boots the device times out
> and halts. I have tried the option at both "0" & "1" with the same effect.

The purpose of the 7895_irq_hack switch is to support Thunder II
motherboards with older BIOSes (prior to 1.16).  Those version will
incorrectly report that the card uses two IRQs when it actually only has
one.  It doesn't do anything to change the actual numbers of IRQs in use.

> The option does force the use of 1 irq.  I downloaded the latest version of
> the bios v1.18 from the tyan site with no improvement.
> 
> Is there something else that I shoud do here?

Try reserving some IRQs (in the BIOS) and see if you can force the BIOS to
give the 7895 just one IRQ instead of two.  Possibly it will split up your
IRQs better if you can find a pattern of reserving IRQs that makes the BIOS
and you happy.

-- 

 Doug Ledford  <dledford at dialnet.net>
  Opinions expressed are my own, but
     they should be everybody's.

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