Re: Going beyond 256 PCI buses

Jonathan Lundell (jlundell@pobox.com)
Thu, 14 Jun 2001 08:13:03 -0700

At 10:14 AM -0400 2001-06-14, Jeff Garzik wrote:
>According to the PCI spec it is -impossible- to have more than 256 buses
>on a single "hose", so you simply have to implement multiple hoses, just
>like Alpha (and Sparc64?) already do. That's how the hardware is forced
>to implement it...

That's right, of course. A small problem is that dev->slot_name
becomes ambiguous, since it doesn't have any hose identification. Nor
does it have any room for the hose id; it's fixed at 8 chars, and
fully used (bb:dd.f\0).

-- 
/Jonathan Lundell.
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