From: Jesse Barnes <jbarnes@engr.sgi.com>

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.
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Jesse Barnes <jbarnes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>