[PATCH 3.16 173/366] scsi: mptsas: Disable WRITE SAME

Ben Hutchings
2018-10-14T23:25:27Z

From: "Martin K. Petersen" <martin.petersen@oracle.com>

commit 94e5395d2403c8bc2504a7cbe4c4caaacb7b8b84 upstream.

First generation MPT Fusion controllers can not translate WRITE SAME
when the attached device is a SATA drive. Disable WRITE SAME support.

Reported-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/message/fusion/mptsas.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1996,6 +1996,7 @@ static struct scsi_host_template mptsas_
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mptscsih_host_attrs,
+ .no_write_same = 1,
};

static int mptsas_get_linkerrors(struct sas_phy *phy)