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Date:      Tue, 16 Jun 2009 08:52:24 +0300
From:      Alexander Motin <mav@FreeBSD.org>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        Daan Vreeken <Daan@vehosting.nl>, FreeBSD-Current <freebsd-current@freebsd.org>, Phil Oleson <oz@nixil.net>, freebsd-arch@freebsd.org
Subject:   Re: WIP: ATA to CAM integration
Message-ID:  <4A373318.9000603@FreeBSD.org>
In-Reply-To: <200906152337.n5FNbQrI008014@apollo.backplane.com>
References:  <4A254B45.8050800@mavhome.dp.ua> <4A294DC3.5010008@mavhome.dp.ua>	<200906051728.n55HSFf0076644@apollo.backplane.com>	<200906152352.48231.Daan@vehosting.nl> <200906152209.n5FM9psY007070@apollo.backplane.com> <4A36CEE9.9040101@nixil.net> <200906152337.n5FNbQrI008014@apollo.backplane.com>

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Matthew Dillon wrote:
>     I think they mis-spoke.  They are SATA-compliant and Port Multiplier
>     compliant, and they use FIS-based packets, so they pretty much do away
>     with all the ATA baggage, but they don't use the AHCI device interface
>     so they won't probe as an AHCI driver.
> 
>     I can see why they do it that way, though.  It looks like they hide
>     most of the complexity behind the chipset, which is nice.  AHCI
>     exposes a lot of that complexity.
> 
>     It looks like a reasonable chipset.

Agree. It's functionally comparable to the latest AHCI specs, but looks 
more user-friendly.

-- 
Alexander Motin



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