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authorMarc Carino <marc.ceeeee@gmail.com>2013-08-25 10:22:51 +0400
committerTejun Heo <tj@kernel.org>2013-08-25 17:39:12 +0400
commit87fb6c31b9ef9ccab9a822b01fc3911f026a29bb (patch)
treecde77c63326f50564a45afefeffd0003db8ee8c7 /include/linux/libata.h
parented36911c747c18525691c0aa0fbe6b918c8eac19 (diff)
downloadlinux-87fb6c31b9ef9ccab9a822b01fc3911f026a29bb.tar.xz
libata: Add support for queued DSM TRIM
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>
Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a988c2d7d0e8..0e23c26485f4 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -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;