mpt(4) controller. Previously, the code assumed that multiple match
patterns provided to an XPT_DEV_MATCH request were ANDed together.
Instead, they are ORed. Instead, to match peripherals for a specific bus,
one query needs to be performed to lookup the path ID of the bus. A second
query can then be performed matching peripherals attached to that path.
This approach also makes the code a bit cleaner as the returned match
results do not mix bus and perphierals.
Reported by: several folks
MFC after: 1 week
Drive and controller status can be reported, basic attributes changed,
and arrays and spares can be created and deleted.
Approved by: re
Obtained from: Yahoo! Inc.
