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| author |   Martin K. Petersen <martin.petersen@oracle.com> | 2015-05-04 21:54:21 -0400 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2015-05-05 09:30:19 -0400 |
| commit | 5d3abf8ff67f49271a42c0f7fa4f20f9e046bf0e (patch) | |
| tree | be812ae236e94d84fab9435c0ca41e947e6faa3a /include/linux/libata.h | |
| parent | libata: READ LOG DMA EXT support can be in either page 119 or 120 (diff) | |
| download | linux-dev-5d3abf8ff67f49271a42c0f7fa4f20f9e046bf0e.tar.xz linux-dev-5d3abf8ff67f49271a42c0f7fa4f20f9e046bf0e.zip | |
libata: Fall back to unqueued READ LOG EXT if the DMA variant fails
Some devices advertise support for the READ/WRITE LOG DMA EXT commands
but fail when we try to issue them. This can lead to queued TRIM being
unintentionally disabled since the relevant feature flag is located in a
general purpose log page.
Fall back to unqueued READ LOG EXT if the DMA variant fails while
reading a log page.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/libata.h')
| -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 8dad4a307bb8..c3ef58014b33 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -424,6 +424,7 @@ enum { ATA_HORKAGE_NOLPM = (1 << 20), /* don't use LPM */ ATA_HORKAGE_WD_BROKEN_LPM = (1 << 21), /* some WDs have broken LPM */ ATA_HORKAGE_ZERO_AFTER_TRIM = (1 << 22),/* guarantees zero after trim */ + ATA_HORKAGE_NO_NCQ_LOG = (1 << 23), /* don't use NCQ for log read */ /* DMA mask for user DMA control: User visible values; DO NOT renumber */ |