Date: Mon, 23 Oct 2006 14:13:36 +0200 From: "O. Hartmann" <ohartman@uni-mainz.de> To: Adrian Chadd <adrian@freebsd.org> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: FreeBSD 6.x + SATA NCQ? Message-ID: <453CB1F0.2060901@uni-mainz.de> In-Reply-To: <d763ac660610222357r5db24977i8d68fcb75ad05735@mail.gmail.com> References: <d763ac660610222357r5db24977i8d68fcb75ad05735@mail.gmail.com>
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Adrian Chadd wrote: > Hiya, > > Is there support for SATA tagged queueing in FreeBSD-6? Any ideas on > which chipsets would support it or how to determine whether FreeBSD is > using it? > > Thanks, > > > Adrian > As I know, this is on one hand dependend on the used chipset and on the other haned dependend on the ATA driver. Those chipsets with NCQ AND AHCI (mostly Intel ICH based chipsets) should be managed and addressed by a suitable driver (as far as I know not yet available for FreeBSD 6.X). As someone can read at the nVidia homepage, their nForce4-SLI chipsets also supports NCQ, but it is proprietary thing, not commonly accessible via AHCI. And due to the lack of information, like most of nVidias goodies for computers, there is no access to this feature via the open source way. If I'm wrong someone should correct my statement. Regards, Oliver
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