Re: PCI 2.2 question

[Neal Palmer <neal@dinigroup.com>]

Michael,

  I'm not sure what purpose you were asking for, but here's both of
them...


Purpose for NT generating special cycles when idle:

	I'm not sure why.  Somebody told me a while ago, but I don't
remember anymore.  It wasn't a very good reason.

Purpose for making NT not idle:

	To make NT not generate special cycles.  That will avoid a bug in
the AMCC s5933qe (and earlier versions).  I'm sure that there are many
other solutions for this problem, but this is a very very simple one to
implement, and it doesn't require any modifications to the hardware.

-- Neal


On Wed, 12 Apr 2000, Michael Richardson wrote:

> 
> >>>>> "Neal" == Neal Palmer <neal@dinigroup.com> writes:
>     Neal> That bug is "seen" in NT when the processor is idle.  NT will
>     Neal> generate special cycles on PCI in motherboards that support the
>     Neal> generation of special cycles when all of the processes running are
>     Neal> IDLE.  You can mostly get around that problem by running a process
> 
>   Why? What is the purpose?
> 
>    :!mcr!:            |  Solidum Systems Corporation, http://www.solidum.com
>    Michael Richardson |For a better connected world,where data flows faster<tm>
>  Personal: http://www.sandelman.ottawa.on.ca/People/Michael_Richardson/Bio.html
> 	mailto:mcr@sandelman.ottawa.on.ca	mailto:mcr@solidum.com
> 
> 
> 

-- Neal Palmer

The Dini Group
1010 Pearl St #6
La Jolla, CA 92037
(858) 454-3419 x16
(858) 454-1728 (Fax)