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Date:      Mon, 20 Dec 2010 15:40:33 -0800
From:      Chuck Swiger <cswiger@mac.com>
To:        Garrett Cooper <gcooper@FreeBSD.org>
Cc:        Alexander Best <arundel@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: two ata write chaching request
Message-ID:  <88FCAE99-440C-4887-A375-D6D6B260A5E1@mac.com>
In-Reply-To: <AANLkTikLxcXouhGvNjeVRzxzWuOG01ce2w0iXTBeH9sj@mail.gmail.com>
References:  <20101220231005.GA68477@freebsd.org> <3B3E7B72-C7C6-46F4-9DD9-0D82194FE068@mac.com> <AANLkTikLxcXouhGvNjeVRzxzWuOG01ce2w0iXTBeH9sj@mail.gmail.com>

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On Dec 20, 2010, at 3:31 PM, Garrett Cooper wrote:
>> NetBSD's dkctl allows one to enable and disable read or write caches on a per-device basis, on the fly.  Presumably atacontrol or whatever the new ada / ACHI driver uses for control would be the FreeBSD equivalent....
> 
>    atacontrol doesn't work with ahci.

Agreed-- perhaps it wasn't clear that I was trying to indicate that ad + atacontrol vs ada + whatever are distinct.  They are.... :-)

Regards,
-- 
-Chuck




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