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Date:      Fri, 2 Mar 2012 21:31:30 -0800
From:      Josh Paetzel <josh@tcbug.org>
To:        Alexander Motin <mav@FreeBSD.org>
Cc:        Goran Lowkrantz <goran.lowkrantz@ismobile.com>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>
Subject:   Re: svn commit: r222520 - head/sys/cam/ata
Message-ID:  <5BFD85CA-0C81-45E1-8587-7B4F4E19D254@tcbug.org>
In-Reply-To: <4E550320.2030204@FreeBSD.org>
References:  <201105310922.p4V9MqYY016057@svn.freebsd.org> <ED55D7418551E18CBB78E04E@syn> <4E550320.2030204@FreeBSD.org>

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On Aug 24, 2011, at 6:56 AM, Alexander Motin <mav@FreeBSD.org> wrote:

> Goran Lowkrantz wrote:
>> --On May 31, 2011 9:22:52 +0000 Alexander Motin <mav@FreeBSD.org> wrote:
>>> Author: mav
>>> Date: Tue May 31 09:22:52 2011
>>> New Revision: 222520
>>> URL: http://svn.freebsd.org/changeset/base/222520
>>> 
>>> Log:
>>>  Add quirks to hint 4K physical sector (Advanced Format) for ATA disks
>>> not   reporting it properly (none? of known disks now).
>>> 
>>>  Hitachi and WDC AF disks seem could be identified more or less
>>> formally.
>>>  For Seagate and Samsung enumerate some found models/series.
>>>  For other disks it can be forced with kern.cam.ada.X.quirks=1 tunable.
>> 
>> Should this work with SAS/SATA cards like LSI 2008 (mps) too?
> 
> No. In that case controller or driver emulate SCSI disk devices. At this
> moment "da" driver has no idea about physical sector size. I've paused
> my work on full physical sector support due to lack of respective
> hardware, but porting only these quirks should not be difficult.
> 

What hardware do you need?

> -- 
> Alexander Motin
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