Date: Tue, 10 Feb 1998 08:24:39 +0100 (MET) From: Søren Schmidt <sos@FreeBSD.ORG> To: StevenR362@aol.com Cc: hackers@FreeBSD.ORG Subject: Re: PCI IDE DMA? Message-ID: <199802100724.IAA01037@sos.freebsd.dk> In-Reply-To: <ae469606.34dfcbbd@aol.com> from "StevenR362@aol.com" at "Feb 9, 98 10:38:35 pm"
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In reply to StevenR362@aol.com who wrote:
>
> I was poking around the Tyan web site and noticed their partial
> list of drives that do not support dma. I was wondering how much
> error checking FreeBSD's ide dma driver does. In other words, if I
> enable it with my current drives, is it likely to hose my filesystems?
> Does it query the drives and only dma to those that support it?
No and Yes.
>
> My current drives are an
> NEC DSE1700A 1.7GB pio4 capable drive and an
> WDC AC2850F 850MB pio3 capable drive.
>
> My motherboard is a Tyan Tomcat IV D with 32MB EDO and currently
> a single pentium 200 MMX running a uniprocessor 2/8/98 current.
> Hopefully tomorrow I will be able to fire it up with two cpu's. :)
> Also does ide dma work in smp mode?
Yes, I run a dual P6/200 with two Maxtor EIDE drives, works like
a charm.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
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