On 2021/1/22 1:52, Jason Gunthorpe wrote: > On Tue, Jan 05, 2021 at 04:47:03PM +0800, Weihang Li wrote: >> diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h >> index 90b739d..79dba94 100644 >> +++ b/include/uapi/rdma/hns-abi.h >> @@ -77,6 +77,7 @@ 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_UD_SQ_INL = 1 << 3, > > I don't understand why you need this flag. > > The # of bytes of inline data should be returned from create_qp in the > max_inline_data cap. > > If things doesn't support inline data then shouldn't that just return > 0? > > Jason > Yes, you are right. Please ignore this patch and I will update the userspace part later. Thanks Weihang