There are a few spots in qla1280.c that don't need a full PCI write flush to 
the device, but rather a simple write ordering guarantee.  This patch changes 
some of the PIO reads that cause write flushes into mmiowb calls instead, 
which is a lighter weight way of ensuring ordering.

Jes and James, can you ack this and/or push it in via the SCSI BK tree?

Thanks,
Jesse

Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Jesse Barnes <jbarnes@sgi.com>