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    Subject[PATCH 06/15] hisi_sas: disable dlvry queues once at reset for v2 hw
    Date
    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>
    ---
    drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 4 +---
    1 file changed, 1 insertion(+), 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++) {
    --
    1.9.1
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