On Wed, 9 May 2007, Greg KH wrote:
>
> Why is it dead? Since when is PCI the only bus in the system?
Quite frankly, any probing strategy that isn't relevant to PCI simply
isn't relevant - full stop!
No, it's not the only bus, but if something isn't relevant to PCI it
shouldn't be in any general bus layer abstraction. PCI is _that_ dominant
(and all the modern variations are just extensions on PCI, PCI didn't go
away just because it's called PCI-X or whatever).
I think buses like SCSI, USB etc are valid things to worry about as being
very different from PCI, but they are not something that the generic bus
probing code (as exemplified by the commit in question) should know/care
about. Whatever probing semantics that a SCSI adapter ends up using for
probing its bus should be up to the SCSI layer, and there is no point in
thinking that it should be a "generic bus" abstraction.
In fact, different SCSI adapters would likely have different rules. iSCSI
probably won't have anything in common with "normal" SCSI when it comes to
probing, for example.
Linus
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