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libata: Add support for queued DSM TRIM

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Some new SSDs support the queued version of the DSM TRIM command.
Let the driver use the new command if supported.

Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Marc Carino 2013-08-24 23:22:51 -07:00 • committed by Tejun Heo
parent ed36911c74
commit 87fb6c31b9
2 changed files with 26 additions and 6 deletions
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7
include/linux/libata.h
View file

@ -1606,6 +1606,13 @@ static inline int ata_ncq_enabled(struct ata_device *dev)
ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ;
}
static inline bool ata_fpdma_dsm_supported(struct ata_device *dev)
{
return (dev->flags & ATA_DFLAG_NCQ_SEND_RECV) &&
(dev->ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET] &
ATA_LOG_NCQ_SEND_RECV_DSM_TRIM);
}
static inline void ata_qc_set_polling(struct ata_queued_cmd *qc)
{
qc->tf.ctl |= ATA_NIEN;