Re: PCI DMA into USER space

From: Charles Turner, Ph.D. (cturner@quark.analogic.com)
Date: Wed Jun 14 2000 - 15:22:48 EST


On Wed, 14 Jun 2000, Russell King wrote:

> Richard B. Johnson writes:
> > This is bs semaitics. There is no way a READ can be posted. As I took
> > the time to carefully explain about WRITE posting. Further, of course
> > configuration transactions are not posted. Configuration and posting
> > are not even related. Configuration writes to the controller. The
> > high-bit being set tells the controller this is a configuration
> > "instruction". Such instructions are not "transactions".
>
> Well, obviously you are a greater authority on PCI than the public
> specifications produced by the PCI special interest group.
>
> My comment was word-unaltered extract from the official PCI 2.1
> specification. If it's not what you understand, then you are WRONG.

Strange! This guy's gotten all our PCI devices to run just fine, in
time-critical applications, no less.

Maybe you should learn the, as you say WRONG, knowledge also?

   Very Truly Yours,

   Charles Turner

Member(s) IEEE, IEEE Computer Society, AIAA

          I speak only for myself, which is enough of a problem.

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