Date: Tue, 18 Jun 2002 14:24:48 -0700 From: "Philip J. Koenig" <pjklist@ekahuna.com> To: stable@FreeBSD.ORG Cc: Doug Barton <DougB@FreeBSD.org> Subject: Re: ATA Atapi 4.6 Release Message-ID: <20020618212448898.AAA603@empty1.ekahuna.com@pc02.ekahuna.com> In-Reply-To: <bulk.49200.20020618053403@hub.freebsd.org>
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> Date: Mon, 17 Jun 2002 18:08:01 -0700 (PDT) > From: Doug Barton <DougB@FreeBSD.org> > > On Mon, 17 Jun 2002, John Prince wrote: > > > Hello Doug. > > Thanks for the reply.. > > We will test again, however last test, dma mode did nothing. > > (set via atacontrol mode ..) > > That's probably not going to do it for you. Put the following in > /boot/loader.conf.local (create if needed) and reboot: > > hw.ata.ata_dma="1" > hw.ata.atapi_dma="1" Very handy info Doug, thanks. (especially for all the people w/ 4.6 setup problems) I've been trying to get DMA to work on ATAPI CDROMs for quite a while now to no avail. All my FBSD boxes are SCSI-based, but many of them have IDE CDROMs. I always just thought using PIO for a fast drive was dumb, but it worked, and the HD's are all SCSI, so I didn't bother any further with it. I tried this option to the kernel configuration file: options ATA_ENABLE_ATAPI_DMA But it never did anything. Now I see that doesn't even appear in the LINT file going back to 4.3, so it's probably old/deprecated. Thanks to your suggestion, I now have DMA working on an old ASUS P2L97 board (dmesg shows "WDMA2") and an Intel L440GX+ Dual P3 server system. (dmesg shows "UDMA33") -- Philip J. Koenig pjklist@ekahuna.com Electric Kahuna Systems -- Computers & Communications for the New Millenium To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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