PCIE communications

• Main Author: THOMAS TESSIL
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

A data processing apparatus is provided that includes a communication configured to receive a translation peripheral component interconnect express (PCIe) packet including a destination field from an origin PCIe device, the destination field including a physical address of the destination PCIe device. Permission circuitry transmits a permission check packet separate from the translated PCIe packet to a root port to determine whether the origin PCIe device has permission to access the destination PCIe device. A buffer circuit stores the translated PCIe packet until a response to the privilege check packet is received. 本发明提供了一种数据处理装置，该数据处理装置包括通信，该通信被配置为从起点外围组件互连高速(PCIe)设备接收包括目的地字段的转换PCIe分组，该目的地字段包括目的地PCIe设备的物理地址。权限电路将与该转换PCIe分组分开的权限检查分组传输到根端口以确定该起点PCIe设备是否具有访问该目的地PCIe设备的权限。缓冲电路存储该转换PCIe分组直到接收到对该权限检查分组的响应。