From: "H. Peter Anvin" <hpa@zytor.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: ATA support for 4k sector size
Date: Wed, 25 Feb 2009 14:53:43 -0800 [thread overview]
Message-ID: <49A5CBF7.9000501@zytor.com> (raw)
In-Reply-To: <1235600698-6446-1-git-send-email-matthew@wil.cx>
Matthew Wilcox wrote:
> The two patches following this add support for drives which have sector
> sizes other than 512 bytes. I haven't been able to test this as I don't
> have the hardware.
>
> Individual host drivers will have to be updated to support sizes other
> than 512 bytes.
>
> Support for logical sector sizes that differ from physical sector sizes
> depends on the READ CAPACITY 16 patch I posted in December that isn't in
> scsi-misc yet.
>
> The approach I've taken to generating the tables of which commands need
> a 512-byte transfer size and which use the drive's sector size command is
> 'innovative'. Review is encouraged ;-)
What sector size do we report to user space for this? I'm asking
because logical sector size is visible in most partition formats.
-hpa
next prev parent reply other threads:[~2009-02-25 22:53 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-25 22:24 ATA support for 4k sector size Matthew Wilcox
2009-02-25 22:24 ` [PATCH 1/2] ata: Define new commands from ATA8 Matthew Wilcox
2009-02-25 22:24 ` [PATCH 2/2] ata: Add support for Long Logical Sectors and Long Physical Sectors Matthew Wilcox
2009-02-25 22:53 ` H. Peter Anvin [this message]
2009-02-25 23:27 ` ATA support for 4k sector size Martin K. Petersen
2009-02-25 23:33 ` H. Peter Anvin
2009-02-25 23:51 ` Martin K. Petersen
2009-02-26 12:43 ` Karel Zak
2009-02-26 15:17 ` H. Peter Anvin
2009-02-25 23:42 ` H. Peter Anvin
2009-02-25 23:55 ` Martin K. Petersen
2009-02-25 23:57 ` H. Peter Anvin
2009-02-26 0:07 ` Martin K. Petersen
2009-02-26 0:10 ` H. Peter Anvin
2009-02-26 0:17 ` Martin K. Petersen
2009-02-25 23:49 ` david
2009-02-26 0:04 ` Martin K. Petersen
2009-02-26 0:13 ` david
2009-02-26 0:20 ` Martin K. Petersen
2009-02-26 2:50 ` Theodore Tso
2009-02-26 3:05 ` Martin K. Petersen
2009-02-26 3:07 ` Matthew Wilcox
2009-02-26 3:23 ` Martin K. Petersen
2009-12-11 7:05 ` James Andrewartha
2009-12-11 7:26 ` H. Peter Anvin
2009-12-11 7:32 ` Martin K. Petersen
2009-02-26 5:16 ` Martin K. Petersen
2009-02-26 12:36 ` Matthew Wilcox
2009-02-26 15:32 ` H. Peter Anvin
2009-02-26 20:35 ` Martin K. Petersen
2009-02-26 21:02 ` H. Peter Anvin
2009-03-16 14:51 ` Greg Freemyer
2009-03-16 16:27 ` H. Peter Anvin
2009-03-16 17:37 ` Greg Freemyer
2009-03-16 18:11 ` H. Peter Anvin
2009-03-22 1:20 ` Bill Davidsen
2009-03-18 14:33 ` James Bottomley
2009-02-26 18:22 ` hdparm-9.12 released Mark Lord
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