Virtualization Features of PCIe Network Cards: ARI and ACS
1 ARI (Alternative Routing-ID Interpretation) 1.1Technical Background To understand ARI, it is essential to grasp the traditional routing ID limitations of PCIe. A PCIe request (such as Memory Read/Write) consists of three parts in the Requester ID: Bus Number (8 bits), Device Number (5 bits), Function Number (3 bits) In traditional mode, a PCIe device … Read more