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authorJohn Garry <john.garry@huawei.com>2016-09-06 23:36:16 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2016-09-14 12:54:17 -0400
commitd0df8f9ad549b8dda643a518fc1907abdaf33976 (patch)
treefcbce2fdecb8fcdd9b219f09a7add492264db6f8 /drivers/scsi/hisi_sas
parent433f569601402d6b1f0df17b75327aed082680a4 (diff)
downloadop-kernel-dev-d0df8f9ad549b8dda643a518fc1907abdaf33976.zip
op-kernel-dev-d0df8f9ad549b8dda643a518fc1907abdaf33976.tar.gz
scsi: hisi_sas: disable dlvry queues once at reset for v2 hw
The Delivery queue enable register should only be written to once at reset for v2 hw. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v2_hw.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 25e7c58..aca2b80 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -685,9 +685,7 @@ static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
else
reset_val = 0x7ffff;
- /* Disable all of the DQ */
- for (i = 0; i < HISI_SAS_MAX_QUEUES; i++)
- hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
/* Disable all of the PHYs */
for (i = 0; i < hisi_hba->n_phy; i++) {
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