XXX the datasheet for the HPT370 is wrong
While I'm there clear the DRIVE_DMA flag when we're going to use Ultra/DMA
where it was missed, so that wdc_print_modes() only prints what's used.
the IRQ has been cleared on the drive.
- use pa->pa_class instead of re-reading PCI_CLASS_REG when possible
- Add support for Highpoint HPT366 and HPT370 (370 untested), based
on patches from Roger Brooks <R.S.Brooks@liverpool.ac.uk> posted on
current-users Mach, 15. Given how Highpoint docs have been wrong for the
366, the 370 is likely to not work.
Thanks to Chris Cappuccio <chris@dqc.org> for sending me the Highpoint
docs, and to Total Archive (http://www.totalarchive.com/) for sending
me hardware.