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| author |   John Garry <john.garry@huawei.com> | 2016-09-06 23:36:16 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2016-09-14 12:54:17 -0400 |
| commit | d0df8f9ad549b8dda643a518fc1907abdaf33976 (patch) | |
| tree | fcbce2fdecb8fcdd9b219f09a7add492264db6f8 /drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | |
| parent | scsi: hisi_sas: use safe BITS_PER_BYTE for slot tag size calculation (diff) | |
| download | linux-dev-d0df8f9ad549b8dda643a518fc1907abdaf33976.tar.xz linux-dev-d0df8f9ad549b8dda643a518fc1907abdaf33976.zip | |
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/hisi_sas_v2_hw.c')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 4 |
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 25e7c58612c8..aca2b80a54b7 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++) { |