PCISIG: Requesting advice on memory allocation strategy...

["George Pauley" <gpauley@3a.com>]

Hi all,

Thanks for the help concerning PCI interrupts.  I'm just about ready to
"go to code" with my first PCI implementation.

I was wondering if anyone had some wisdom concerning a memory/IO
address allocation strategies during the configuration phase.  We've
been looking at 2 main approaches.  First, we grant largest requested
spaces first.  This method should waste the least amount of space, but
has the drawback, that one device requesting a large memory allocation
could lock every other device out.  The second approach would be to
grant smallest first.  This method potentially wastes lot's of space, but
should help grant the memory requests of the largest # of devices.

Figured that many of you have dealt with this already, and would 
appreciate your advice.

Thanks in advance.

George Pauley

3A International
mailto:gpauley@3a.com