On Sat, 22 Feb 2003 @ 8:18am (-0800), Jason R Thorpe wrote:

JRT> On Sat, Feb 22, 2003 at 06:10:43PM +0200, netbsd@ns.purk.ee wrote:
JRT>
JRT>  > Recently i saw that Wasabisystem is supporting SATA controllers in ISCASI SOLUTIONS and
JRT>  > i wonder if this stack is going to be in upcoming 2.0 release? (SATA support)
JRT>
JRT> NetBSD already supports Intel's S-ATA RAID controller (the "icp" driver
JRT> Just Works with it).  As far as "plain" S-ATA controller chips:
JRT>
JRT> 	* The extant Silicon Image controller should be easy to support,
JRT> 	  and will likely Just Work, apart from DMA support.
JRT>


...my Asus P4G8X delux came w/ one.  It's a "Silicon Image SIL 3112 Serial ATA".
As soon as I get these 48 bit LBA addressing issues on the normal controller
worked out, i'll try a recent -current and see if it's functional.

JRT> 	* Intel's forthcoming i31244 controller Just Works in legacy
JRT> 	  PCI IDE mode (apart from DMA support, which I have code for,
JRT> 	  but which is not ready to check in).  The i31244 also supports
JRT> 	  a mode called DPA (Direct Port Access), which effectively
JRT> 	  gives each S-ATA port its down "channel" as far as software
JRT> 	  is concerned, which leads to improved performance.
JRT>
JRT> One thing that has not been addressed yet is the S-ATA equivalent of
JRT> Tagged Queueing (in SCSI).  However, this is a performance issue, not
JRT> a basic functionality issue.
JRT>
JRT> --
JRT>         -- Jason R. Thorpe <thorpej@wasabisystems.com>
JRT>

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