!581 Add support for SVE Direct WQE for hns

Merge Pull Request from: @stinft 
 
Support SVE DWQE to increase the performance of SoC.
#I6VLLM 
 
Link:https://gitee.com/openeuler/kernel/pulls/581 

Reviewed-by: Chengchang Tang <tangchengchang@huawei.com> 
Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

drivers/infiniband/hw/hns/hns_roce_device.h

@@ -154,6 +154,7 @@ enum {
 	HNS_ROCE_CAP_FLAG_QP_FLOW_CTRL		= BIT(9),
 	HNS_ROCE_CAP_FLAG_ATOMIC		= BIT(10),
 	HNS_ROCE_CAP_FLAG_DIRECT_WQE		= BIT(12),
+	HNS_ROCE_CAP_FLAG_SVE_DIRECT_WQE	= BIT(13),
 	HNS_ROCE_CAP_FLAG_SDI_MODE		= BIT(14),
 	HNS_ROCE_CAP_FLAG_DCA_MODE		= BIT(15),
 	HNS_ROCE_CAP_FLAG_STASH			= BIT(17),

drivers/infiniband/hw/hns/hns_roce_qp.c

@@ -793,6 +793,9 @@ static int alloc_wqe_buf(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 		 */
 		if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_DIRECT_WQE)
 			hr_qp->en_flags |= HNS_ROCE_QP_CAP_DIRECT_WQE;
+
+		if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SVE_DIRECT_WQE)
+			hr_qp->en_flags |= HNS_ROCE_QP_CAP_SVE_DIRECT_WQE;
 	}
 
 	ret = hns_roce_mtr_create(hr_dev, &hr_qp->mtr, buf_attr,

include/uapi/rdma/hns-abi.h

@@ -92,6 +92,7 @@ enum hns_roce_qp_cap_flags {
 	HNS_ROCE_QP_CAP_RQ_RECORD_DB = 1 << 0,
 	HNS_ROCE_QP_CAP_SQ_RECORD_DB = 1 << 1,
 	HNS_ROCE_QP_CAP_OWNER_DB = 1 << 2,
+	HNS_ROCE_QP_CAP_SVE_DIRECT_WQE = 1 << 3,
 	HNS_ROCE_QP_CAP_DYNAMIC_CTX_ATTACH = 1 << 4,
 	HNS_ROCE_QP_CAP_DIRECT_WQE = 1 << 5,
 	HNS_ROCE_QP_CAP_DYNAMIC_CTX_DETACH = 1 << 6,