Re: PCI Express support for 2.4 kernel

From: Vladimir Kondratiev
Date: Wed Dec 17 2003 - 01:35:25 EST


Linus,

Hopefully, they (or we, should I count myself?) are not completely brain dead.
Old method still works.
All game is about to give full 4k. It will be required for new deices.
If all you need is PCI devices behind PCI-E/PCI brigde,
it will work fine with old method.

Vladimir.

Linus Torvalds wrote:

On Tue, 16 Dec 2003, Vladimir Kondratiev wrote:


I re-worked the patch. This time it uses fixmap; I added config
parameters to disable this code and to handle non-default base address.



Ok, this looks sane to me.

However, I have a totally independent question: do new PCI Express host
bridges really not just suppor the old PCI config access interface?

Quite frankly, if I was a manager in charge of a PCI Express host bridge,
and it didn't support the old C8C IO access patterns, I'd be so ashamed of
myself that I'd kill my whole development team with rat poison, and then
blame them for the mistake(*).

Do we know of any sudden suspicious death waves inside certain groups at
Intel?

Linus

(*) That's how managers work, after all. Long gone are the days when
personal shame caused you to take personal responsibility.



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