diff options
| author | Grant Grundler <grundler@google.com> | 2010-08-17 10:56:53 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-10-21 20:21:03 -0400 |
| commit | 295124dce4ddfd40b1f12d3ffd2779673e87c701 (patch) | |
| tree | cccdc9d6270fbc72b9147050232c627f7ddee23b /block/blk-settings.c | |
| parent | 1aadf5c3bbbbb0db09dcb5aa26c61326e0d3e9e7 (diff) | |
[libata] support for > 512 byte sectors (e.g. 4K Native)
This change enables my x86 machine to recognize and talk to a
"Native 4K" SATA device.
When I started working on this, I didn't know Matthew Wilcox had
posted a similar patch 2 years ago:
http://git.kernel.org/?p=linux/kernel/git/willy/ata.git;a=shortlog;h=refs/heads/ata-large-sectors
Gwendal Grignou pointed me at the the above code and small portions of
this patch include Matthew's work. That's why Mathew is first on the
"Signed-off-by:". I've NOT included his use of a bitmap to determine
512 vs Native for ATA command block size - just used a simple table.
And bugs are almost certainly mine.
Lastly, the patch has been tested with a native 4K 'Engineering
Sample' drive provided by Hitachi GST.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Grant Grundler <grundler@google.com>
Reviewed-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'block/blk-settings.c')
0 files changed, 0 insertions, 0 deletions