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3 Commits

Author SHA1 Message Date
Martin K. Petersen
4b9d64ee04 libata: Fix sysfs documentation bug 
forced_unqueued indicates that a drive's queued DSM support is
broken. Update sysfs ABI documentation accordingly.

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
 2015-05-06 10:28:39 -04:00
Martin K. Petersen
f303074160 libata: Expose TRIM capability in sysfs 
Create a sysfs "trim" attribute for each ata_device that displays
whether DSM TRIM is "unsupported", "unqueued", "forced_unqueued"
(blacklisted) or "queued".

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>
 2015-05-05 09:30:18 -04:00
Gwendal Grignou
d9027470b8 [libata] Add ATA transport class 
This is a scheleton for libata transport class.
All information is read only, exporting information from libata:
- ata_port class: one per ATA port
- ata_link class: one per ATA port or 15 for SATA Port Multiplier
- ata_device class: up to 2 for PATA link, usually one for SATA.

Signed-off-by: Gwendal Grignou <gwendal@google.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
 2010-10-21 20:21:03 -04:00