Subject: AHCI support for SATA devices?
To: None <,>
From: Thor Lancelot Simon <>
List: tech-kern
Date: 12/14/2005 11:42:14
It appears that most manufacturers of SATA disk controllers are moving
(painfully slowly, but moving nonetheless) towards Intel's "Advanced
Host Controller Interface" as a replacement for the old IDE logical
interface (really, the WD100x disk interface -- yowch!).  In particular,
all the new Intel chipsets seem to support this interface and on a
number of newer motherboards, it appears to be impossible to turn it
off and get the old IDE interface that works with our drivers.

AHCI is an open specification.  Linux and FreeBSD have support for it.
It supports tagged queueing and many other performance-enhancing
features.  Is anyone working on support for AHCI in NetBSD?

 Thor Lancelot Simon	                            

"The inconsistency is startling, though admittedly, if consistency is to be
 abandoned or transcended, there is no problem."		- Noam Chomsky