Re: highmem, aic7xxx, and vfat: too few segs for dma mapping

From: Gérard Roudier (
Date: Thu Dec 13 2001 - 11:39:19 EST

On Wed, 12 Dec 2001, David S. Miller wrote:

> From: Gérard Roudier <>
> Date: Wed, 12 Dec 2001 18:22:30 +0100 (CET)
> PCI was intended to be implemented as a LOCAL BUS with all agents on the
> LOCAL BUS being able to talk with any other agent using a flat addressing
> scheme. Your PCI thing does not look like true PCI to me, but rather like
> some bad mutant that has every chance not to survive a long time.
> Intentions are neither here nor there. PCI is MORE USEFUL, because
> you CAN do things like IOMMU's and treat PCI like a complete seperate
> I/O bus world.

But there are a couple of things you cannot do with PCI. For example, you
cannot mow the lawn with PCI. But since there is always room for
improvement... :-) :-)


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