[PATCH 13/15] sas_ata: Implement a libata error handler

["Darrick J. Wong" <djwong@us.ibm.com>]

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
---

 drivers/scsi/libsas/sas_ata.c |   24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index e897140..7338775 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -351,6 +351,27 @@ static u32 sas_ata_scr_read(struct ata_p
 	}
 }
 
+static int sas_ata_hardreset(struct ata_port *ap, unsigned int *classes)
+{
+	struct domain_device *dev = ap->private_data;
+	struct sas_phy *phy = dev->port->phy;
+
+	return sas_phy_reset(phy, 1);
+}
+
+static int sas_ata_softreset(struct ata_port *ap, unsigned int *classes)
+{
+	struct domain_device *dev = ap->private_data;
+	struct sas_phy *phy = dev->port->phy;
+
+	return sas_phy_reset(phy, 0);
+}
+
+static void sas_ata_eh(struct ata_port *ap)
+{
+	ata_do_eh(ap, NULL, sas_ata_softreset, sas_ata_hardreset, NULL);
+}
+
 static struct ata_port_operations sas_sata_ops = {
 	.port_disable		= ata_port_disable,
 	.check_status		= sas_ata_check_status,
@@ -364,7 +385,8 @@ static struct ata_port_operations sas_sa
 	.port_start		= ata_sas_port_start,
 	.port_stop		= ata_sas_port_stop,
 	.scr_read		= sas_ata_scr_read,
-	.scr_write		= sas_ata_scr_write
+	.scr_write		= sas_ata_scr_write,
+	.error_handler		= sas_ata_eh
 };
 
 static struct ata_port_info sata_port_info = {