From: Wenpeng Liang liangwenpeng@huawei.com
mainline inclusion from mainline-v5.15-rc1 commit fe164fc8d7b2 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4QOTS CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?id=fe1...
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According to the IB specification, the destination qpn is allowed to be filled into the qpc only when the qp transitions from Init to RTR, so this code is unused.
Link: https://lore.kernel.org/r/1629985056-57004-4-git-send-email-liangwenpeng@hua... Signed-off-by: Wenpeng Liang liangwenpeng@huawei.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com sigend-off-by: Guofeng Yue yueguofeng@hisilicon.com
Reviewed-by: Yangyang Li liyangyang20@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 7 ------- 1 file changed, 7 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index faaca96eee12..d9bd2c721578 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -4135,8 +4135,6 @@ static void modify_qp_init_to_init(struct ib_qp *ibqp, struct hns_roce_v2_qp_context *context, struct hns_roce_v2_qp_context *qpc_mask) { - struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); - /* * In v2 engine, software pass context and context mask to hardware * when modifying qp. If software need modify some fields in context, @@ -4161,11 +4159,6 @@ static void modify_qp_init_to_init(struct ib_qp *ibqp, hr_reg_write(context, QPC_SRQN, to_hr_srq(ibqp->srq)->srqn); hr_reg_clear(qpc_mask, QPC_SRQN); } - - if (attr_mask & IB_QP_DEST_QPN) { - hr_reg_write(context, QPC_DQPN, hr_qp->qpn); - hr_reg_clear(qpc_mask, QPC_DQPN); - } }
static int config_qp_rq_buf(struct hns_roce_dev *hr_dev,