diff options
| author | Marc Carino <marc.ceeeee@gmail.com> | 2013-12-16 18:15:53 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-09 12:25:12 -0800 |
| commit | ccba1cb065bebefb8f152d0dee781e1373d1f32e (patch) | |
| tree | 3bfee1b8d21c8b425835f3176687fd1709214497 /include | |
| parent | 83ceef0795fb85bb40bb90b300e3ebd8e8628454 (diff) | |
libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
commit f78dea064c5f7de07de4912a6e5136dbc443d614 upstream.
Certain drives cannot handle queued TRIM commands properly, even
though support is indicated in the IDENTIFY DEVICE buffer. This patch
allows for disabling the commands for the affected drives and apply it
to the Micron/Crucial M500 SSDs which exhibit incorrect protocol
behavior when issued queued TRIM commands, which could lead to silent
data corruption.
tj: Merged two unnecessarily split patches and made minor edits
including shortening horkage name.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/g/1387246554-7311-1-git-send-email-marc.ceeeee@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 0e23c26485f..9b503376738 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -418,6 +418,7 @@ enum { ATA_HORKAGE_DUMP_ID = (1 << 16), /* dump IDENTIFY data */ ATA_HORKAGE_MAX_SEC_LBA48 = (1 << 17), /* Set max sects to 65535 */ ATA_HORKAGE_ATAPI_DMADIR = (1 << 18), /* device requires dmadir */ + ATA_HORKAGE_NO_NCQ_TRIM = (1 << 19), /* don't use queued TRIM */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |