公开(公告)号：US20160188527A1

公开(公告)日：2016-06-30

申请号：US14656368

申请日：2015-03-12

Applicant: VMware, Inc.

Inventor： Shoby Cherian ,  Tanuja Ingale ,  Raghavendra Subbarao Narahari Venkata

IPC: G06F15/167 ,  H04L12/741 ,  H04L12/715

CPC classification number: G06F15/167 ,  H04L41/12 ,  H04L45/64 ,  H04L45/74 ,  H04L67/1097 ,  H04L69/22

Abstract: A method for providing multi-tenancy support for RDMA in a system that includes a plurality of physical hosts. Each physical host hosts a set of data compute nodes (DCNs). The method, at an RDMA protocol stack of the first host, receives a packet that includes a request from a first DCN hosted on a first host for RDMA data transfer from a second DCN hosted on a second host. The method sends a set of parameters of an overlay network that are associated with the first DCN to an RDMA physical network interface controller of the first host. The set of parameters are used by the RDMA physical NIC to encapsulate the packet with an RDMA data transfer header and an overlay network header by using the set of parameters of the overlay network to transfer the encapsulated packet to the second physical host using the overlay network.

Abstract translation: 一种用于在包括多个物理主机的系统中为RDMA提供多租户支持的方法。 每个物理主机托管一组数据计算节点（DCN）。 该方法在第一主机的RDMA协议栈处接收包含来自托管在第一主机上的第一DCN的请求的分组，用于从托管在第二主机上的第二DCN进行RDMA数据传输。 该方法将与第一DCN相关联的覆盖网络的一组参数发送到第一主机的RDMA物理网络接口控制器。 该组参数由RDMA物理NIC用于通过使用覆盖网络的一组参数将数据包与RDMA数据传输报头和覆盖网络报头封装，以使用覆盖网络将封装的分组传输到第二物理主机 。