Date: Mon, 22 Jan 2018 14:05:53 -0500 From: FF <fusionfoto@gmail.com> To: Alan Somers <asomers@freebsd.org> Cc: FreeBSD <freebsd-stable@freebsd.org> Subject: Re: AHCI and Highpoint Rocket 750 Message-ID: <CAD=tpefxxrWp2UzpTxrAJ-%2BZv=Xn6RhJeWFbbd-E4yeRf=4FtQ@mail.gmail.com> In-Reply-To: <CAOtMX2i64Lz_O%2B3Arv3Fu_Wy=UqxmrdgHQd%2BMTawjH-Grwx96Q@mail.gmail.com> References: <CAD=tpef5poDBVxu4omyjm2MEb0-FYaBNVoF-pDekAZ4CeVuniA@mail.gmail.com> <CAOtMX2i64Lz_O%2B3Arv3Fu_Wy=UqxmrdgHQd%2BMTawjH-Grwx96Q@mail.gmail.com>
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oh nice! so it "just works" -- is there any way to verify it? Is there any reason to use the highpoint driver when the native FreeBSD one seems to work? thanks!! On Mon, Jan 22, 2018 at 1:26 PM, Alan Somers <asomers@freebsd.org> wrote: > On Mon, Jan 22, 2018 at 11:08 AM, FF <fusionfoto@gmail.com> wrote: > >> I have a machine with the Highpoint card and motherboard based SATA >> drives. >> The drives from the MB support AHCI and appear as ada0-8. The drives on >> the >> highpoint card whether using native FreeBSD support or the Highpoint >> provided driver show up as da9-39. >> >> It is my understanding that AHCI is needed to support NCQ... I'm wondering >> what I need to do to get AHCI enabled. This seems to happen in both >> FreeBSD >> 9 and FreeBSD 10. >> >> thanks in advance! >> > > AHCI has nothing to do with it. The driver presents itself to the OS as a > SCSI HBA, even though the drives are SATA. In fact, it might actually be > using a SCSI IC, but firmware-restricted to only connect to SATA drives. > In any case, the OS is going to try to use TCQ, and either the driver or > the firmware is going to translate those queued commands into NCQ. You > don't need to change anything. > > -Alan > > -- FF
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