Add two reserved registers in the middle of the BAR to match the 1.0
spec plus ECN 0002.
Also rename IMC and ISC to INTMC and INTSC to conform with the spec.
We still don't need to use them :-)
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Add prp1, prp2 and the metadata prp to the common command, since the
fields are generally used this way.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
