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Re: Compact PCI
- To: Gilad Ben-Yossef <gilad(at-nospam)benyossef.com>
- Subject: Re: Compact PCI
- From: "Marc A. Volovic" <marc(at-nospam)bard.org.il>
- Date: Tue, 8 May 2001 19:21:39 +0300
- Cc: linux-il(at-nospam)linux.org.il
- Delivered-To: linux.org.il-linux-il@linux.org.il
- In-Reply-To: <3AF80860.8020501@benyossef.com>; from gilad@benyossef.com on Tue, May 08, 2001 at 05:53:20PM +0300
- References: <3AF80860.8020501@benyossef.com>
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
- User-Agent: Mutt/1.3.17i
On Tue, May 08, 2001 at 05:53:20PM +0300, Gilad Ben-Yossef wrote:
> hi there,
>
> I'm trying to run linux on a CompactPCI setup.
Yez! Oh yez! Worked quite well for me in Comverse.
> As long as I have only one host card everything works great.
> If I put more then 1 host card, the different Linux hosts keeps messing
> up each other, because they ALL try to initialize the devices on the bus...
Is each host booting off a separate disk? If so, a simple (if highly
inelegant) solution is to NOT activate certain devices depending on
the identity of the host. Running CPCI, each host should be given a slot
ID by the rack.
> I am told that what happens normally, is that the BIOS designates one
> card as master host and the rest as IO and then only the master hosts
> initiates the bus and all is well.
It _COULD_ be that your BIOSes decide that EACH host card is a master.
This is a Linux-external event and a problem. I would suggest probing
the BIOS on each host after booting with NO device support.
> I would appreciate any pointer relevant information.
I will try to think of something, in addition to the above. We might
meet tomorrow ;-). I am in your area.
> Many thanks,
> Gilad.
>
> --
> Gilad Ben-Yossef <gilad@benyossef.com>
> http://benyossef.com :: +972(54)756701
> "Anything that can go wrong, will go wrong, while interrupts are disabled. "
> -- Murphey's law of kernel programing.
>
>
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--
---MAV
Linguists Do It Cunningly
Marc A. Volovic marc@bard.org.il
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