From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <kernel@teksavvy.com>
Subject: Re: 520 Bytes sector size
Date: Wed, 03 Feb 2010 12:19:46 -0500
Message-ID: <4B69B032.4010600@teksavvy.com>
References: <93b143da1002020450sf495912ib0ea75989d1d8928@mail.gmail.com>	<yq1aavrqlxw.fsf@sermon.lab.mkp.net> <20100202232540.7f5327f6@lxorguk.ukuu.org.uk>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>, Dan Porat <dan.porat@gmail.com>, linux-ide@vger.kernel.org

Alan Cox wrote:
> On Tue, 02 Feb 2010 18:04:11 -0500
> "Martin K. Petersen" <martin.petersen@oracle.com> wrote:
> 
>>>>>>> "Dan" == Dan Porat <dan.porat@gmail.com> writes:
>> Dan> I would like to run 520 Bytes disk in native mode.  What changes I
>> Dan> have to run in sg driver ?  Is there any kernel already adapted for
>> Dan> 520 bytes sector size ?
>>
>> Linux does not support 520-byte sectors unless the drive is formatted
>> with DIF and hanging off a DIF-capable HBA.
..

The ATA READ_LONG and WRITE_LONG commands both use 520 byte sectors,
and both work with libata.

-ml