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    Subject[PATCH 5.4 74/98] RDMA/hns: Fix retry_cnt and rnr_cnt when querying QP
    Date
    From: Wenpeng Liang <liangwenpeng@huawei.com>

    [ Upstream commit ab6f7248cc446b85fe9e31091670ad7c4293d7fd ]

    The maximum number of retransmission should be returned when querying QP,
    not the value of retransmission counter.

    Fixes: 99fcf82521d9 ("RDMA/hns: Fix the wrong value of rnr_retry when querying qp")
    Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
    Link: https://lore.kernel.org/r/1606382977-21431-1-git-send-email-liweihang@huawei.com
    Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
    Signed-off-by: Weihang Li <liweihang@huawei.com>
    Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 8 ++++----
    1 file changed, 4 insertions(+), 4 deletions(-)

    diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
    index bb75328193957..b285920bcd8ab 100644
    --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
    +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
    @@ -4614,11 +4614,11 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
    V2_QPC_BYTE_28_AT_M,
    V2_QPC_BYTE_28_AT_S);
    qp_attr->retry_cnt = roce_get_field(context.byte_212_lsn,
    - V2_QPC_BYTE_212_RETRY_CNT_M,
    - V2_QPC_BYTE_212_RETRY_CNT_S);
    + V2_QPC_BYTE_212_RETRY_NUM_INIT_M,
    + V2_QPC_BYTE_212_RETRY_NUM_INIT_S);
    qp_attr->rnr_retry = roce_get_field(context.byte_244_rnr_rxack,
    - V2_QPC_BYTE_244_RNR_CNT_M,
    - V2_QPC_BYTE_244_RNR_CNT_S);
    + V2_QPC_BYTE_244_RNR_NUM_INIT_M,
    + V2_QPC_BYTE_244_RNR_NUM_INIT_S);

    done:
    qp_attr->cur_qp_state = qp_attr->qp_state;
    --
    2.27.0


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