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Date:      Fri, 4 Apr 1997 13:23:54 -0700
From:      vanmaren@fast.cs.utah.edu (Kevin Van Maren)
To:        nishio@caleche.kecl.ntt.co.jp, smp@csn.net
Cc:        freebsd-smp@freebsd.org
Subject:   Re: APIC_IO problem on Tyan S1668
Message-ID:  <199704042023.NAA20216@fast.cs.utah.edu>

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> >	DEC Fast EtherWORKS PCI 10/100 x 2
> >	(one connected to 10BaseT Hub, another to 100BaseT Hub)
> 
> evidently a PCI-PCI bridge card

No.  Read below.

> 
> > de0 <Digital 21140A Fast Ethernet> rev 32 int a irq 15 on pci0:10
> > de1 <Digital 21140A Fast Ethernet> rev 32 int a irq 9 on pci0:11
> 
> > de1 <Digital 21140A Fast Ethernet> rev 32 int a irq 19 on pci0:11
> > Freeing (NOT implimented) irq 9 for ISA cards.
> 
> >		INT	active-lo       level	     1	14:A	      2	  16
> >		INT	active-lo       level	     1	13:A	      2	  17
> >		INT	active-lo       level	     1	12:A	      2	  18
> >		INT	active-lo       level	     1	11:A	      2	  19
> 
> as someone else already pointed out the de0 half of the card is absent
> from the mptable.  This is a common bug in the current generation of
> SMP boards, they don't have a clue about PCI-PCI bridging.  once
> you get past the other problems I can whip up a bandaid that will allow
> the pci code to "see" this card.
> 

Nope!  There are two cards in the 5-PCI slot MotherBoard (NO bridge chips).
Note that they are both on PCI bus #0.  The problem is that there are
5 PCI slots, 4 PCI/ISA redirection registers, and 4 MP table entries.
Yes, it is a problem with the Tyan MB that it doesn't have all the PCI 
slots in the table.

Kevin



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