commands to the controller.
Add a amrctl(8) control tool, which for now only allows to get status
from the adapter (status of adapter, logical volumes and and individual
drives).
From FreeBSD, with some adjustements by Andrew Doran and me.
- Handle failure during initalisation more gracefully.
- Create a watchdog thread to poke the board and check for status changes.
- Make ready for > 64kB transfers.
good while ago and it had problems under load. Changes were made to address
that, but I don't have the ability to test them. So, I'm committing it
before it rots.
gmcgarry