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Date:      Mon, 21 Dec 1998 15:50:51 +1030 (CST)
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        Mike Smith <mike@smith.net.au>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: PCI IRQ mappings
Message-ID:  <XFMail.981221155051.doconnor@gsoft.com.au>
In-Reply-To: <199812210511.VAA49211@dingo.cdrom.com>

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On 21-Dec-98 Mike Smith wrote:
> > so the only way to change IRQ's is to shuffle cards in the machine. Is
> > there a better way? :)
>  Can you define "broken" in a useful fashion?
Doesn't work/crashes machine. The network cards don't appear to like sharing IRQ's :(
(Although its a little hard to say what causes it)

>  Windows 9[58] take it upon themselves to manage resource allocation, 
>  and they do this using int 1a functions 0xb10e and 0xb10f (get IRQ 
>  routing information, set PCI IRQ).  You also have to update the config 
>  register on the PCI device.
I see.. I thought it was device independat (ie based on the PCI chipset)

This is a VM86 thing then? :)

---
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum

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