Date: Wed, 30 Jul 1997 13:58:02 +0200 (MEST) From: Søren Schmidt <sos@sos.freebsd.dk> To: dmaddox@scsn.net Cc: cgull@smoke.marlboro.vt.us, doogie@forbidden-donut.anet-stl.com, freebsd-current@FreeBSD.ORG Subject: Re: code talks: announcing EIDE bus master patches Message-ID: <199707301158.NAA02177@sos.freebsd.dk> In-Reply-To: <19970730072456.05185@scsn.net> from "Donald J. Maddox" at "Jul 30, 97 07:24:56 am"
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In reply to Donald J. Maddox who wrote:
>
> Anybody know why I'm seeing the following after building a new kernel
> with the EIDE bus master patches? Do I need to add something to my config
> to activate this, or ???
Yes, as stated in the commit etc, you need to set the flags to 0xa0ffa0ff
to get DMA support (if the drive and controller supports it).
> wdc0 at 0x1f0-0x1f7 irq 14 flags 0x80ff80ff on isa
^^^^^^^^^^
> wdc1 at 0x170-0x177 irq 15 flags 0x80ff80ff on isa
^^^^^^^^^^
> wdc1: unit 0 (atapi): <V004H0DT B/4V001-4.>, removable, iordy
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Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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