commit 388539f3ff0cf1de926b03f94e1eec112358f74d
author Shaohua Li <shaohua.li@intel.com> Mon Jul 27 09:24:35 2009 +0800
committer Jeff Garzik <jgarzik@redhat.com> Tue Sep 01 19:47:19 2009 -0400
tree 6840b76ede7e27e27eb9aaf516f827beba16c5ad
parent 2fc37adba0fb05760b8635c6706773af828ccf3c

[libata] add DMA setup FIS auto-activate feature

Hopefully results in fewer on-the-wire FIS's and no breakage.  We'll see!

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/ata/ahci.c

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index fe3eba5..7a3124a 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2869,7 +2869,7 @@
 
 	/* prepare host */
 	if (hpriv->cap & HOST_CAP_NCQ)
-		pi.flags |= ATA_FLAG_NCQ;
+		pi.flags |= ATA_FLAG_NCQ | ATA_FLAG_FPDMA_AA;
 
 	if (hpriv->cap & HOST_CAP_PMP)
 		pi.flags |= ATA_FLAG_PMP;