公开(公告)号：US09467512B2

公开(公告)日：2016-10-11

申请号：US13743170

申请日：2013-01-16

Applicant: Intel Corporation

Inventor： Eliezer Tamir ,  Ben-Zion Friedman ,  Phil C. Cayton ,  Theodore L. Willke ,  Frank Berry

IPC: G06F13/12 ,  G06F15/167 ,  H04L29/08 ,  G06F21/80 ,  G06F21/44 ,  G06F21/79 ,  H04L29/06 ,  G06F3/06

CPC classification number: G06F15/17331 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0655 ,  G06F3/0659 ,  G06F3/0683 ,  G06F3/0688 ,  G06F13/4282 ,  G06F15/167 ,  G06F21/44 ,  G06F21/79 ,  G06F21/80 ,  G06F2213/0026 ,  H04L67/1097 ,  H04L69/12 ,  Y02D10/14 ,  Y02D10/151

Abstract: Examples include client access to a storage medium coupled with a server. A network input/output device for the server receives a remote direct memory access (RDMA) command including a steering tag (S-Tag) from a client remote to the server. For these examples, the network input/output device forwards the RDMA command to a Non-Volatile Memory Express (NVMe) controller and access is provided to a storage medium based on an allocation scheme that assigned the S-Tag to the storage medium. In some other examples, an NVMe controller generates a memory mapping of one or more storage devices controlled by the NVMe controller to addresses for a base address register (BAR) on a Peripheral Component Interconnect Express (PCIe) bus. PCIe memory access commands received by the NVMe controller are translated based on the memory mapping to provide access to the storage device.

Abstract translation: 示例包括客户端访问与服务器耦合的存储介质。 用于服务器的网络输入/输出设备从远程服务器的客户端接收包括转向标签（S-Tag）的远程直接存储器访问（RDMA）命令。 对于这些示例，网络输入/输出设备将RDMA命令转发到非易失性存储器Express（NVMe）控制器，并且基于将S-Tag分配给存储介质的分配方案向存储介质提供访问。 在其他一些示例中，NVMe控制器生成由NVMe控制器控制的一个或多个存储设备的存储器映射到外围组件互连Express（PCIe）总线上的基地址寄存器（BAR）的地址。 由NVMe控制器接收的PCIe存储器访问命令基于存储器映射进行转换，以提供对存储设备的访问。