Switch from legacy ata(4) to CAM-based ATA

[Bruce Cran]

On Wed, 20 Apr 2011 12:57:47 +0300
Alexander Motin <mav at FreeBSD.org> wrote:

> If somebody has any problems with new ATA stack, please repeat your
> tests with latest HEAD code and contact me if problem is still there.
> Next three weeks before BSDCan I am going to dedicate to fixing
> possibly remaining issues.

I've not checked recently with -current, but at least on the
latest 8-stable there's a problem with using ATA_CAM on Xen: during boot
there's a pause for a minute after which "run_interrupt_driven_hooks:
still waiting after 60 seconds for xpt_config" is displayed.

-- 
Bruce Cran