Date: Sun, 2 Feb 1997 18:23:54 +0200 (IST) From: Nadav Eiron <nadav@cs.technion.ac.il> To: Wolfgang Helbig <helbig@MX.BA-Stuttgart.De> Cc: hackers@FreeBSD.ORG Subject: Re: CMD640b flaw workaround Message-ID: <Pine.GSO.3.95-heb-2.07.970202182140.22764B-100000@csd> In-Reply-To: <199702021530.QAA00202@helbig.informatik.ba-stuttgart.de>
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On Sun, 2 Feb 1997, Wolfgang Helbig wrote:
> Hi,
>
> This is a patch for wd.c to make the broken CMD640b work with both
> IDE channels under FreeBSD.
> I tested it with ATAPI-CDROM - HD's on both channels and also with
> HD's an both channels.
>
> You have to put
> options "CMD640"
> in your kernel configuration file to enable the needed serialization
> for the CMD640. Sorry Jörg, I know I should have used the driver flags,
> but this is a snapshot anyway. I guess the best way to enable this code
> is to use the pci-probing. It does recognize the CMD640.
>
> Please test this patch and tell about the results.
>
> Wolfgang Helbig
>
>
[patch snipped]
Cool! Will this work under 2.1.6R (yeah, I know, but it's a "production"
machine, and while we are working on an upgrade to SCSI, it currently has
a CMD640)?
Nadav
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