公开(公告)号：US11556437B2

公开(公告)日：2023-01-17

申请号：US16211950

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Mitu Aggarwal ,  Nrupal Jani ,  Manasi Deval ,  Kiran Patil ,  Parthasarathy Sarangam ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F9/455 ,  G06F9/46 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/48

Abstract: Examples include a method of live migrating a virtual device by creating a virtual device in a virtual machine, creating first and second interfaces for the virtual device, transferring data over the first interface, detecting a disconnection of the virtual device from the virtual machine, switching data transfers for the virtual device from the first interface to the second interface, detecting a reconnection of the virtual device to the virtual machine, and switching data transfers for the virtual device from the second interface to the first interface.

公开(公告)号：US11474916B2

公开(公告)日：2022-10-18

申请号：US16211955

申请日：2018-12-06

Applicant: Intel Corporation

Inventor： Mitu Aggarwal ,  Nrupal Jani ,  Manasi Deval ,  Kiran Patil ,  Parthasarathy Sarangam ,  Rajesh M. Sankaran ,  Sanjay K. Kumar ,  Utkarsh Y. Kakaiya ,  Philip Lantz ,  Kun Tian

IPC: G06F11/00 ,  G06F11/20 ,  G06F3/06 ,  G06F13/16 ,  G06F13/42 ,  G06F13/40 ,  G06F15/173 ,  G06F9/455 ,  G06F9/48

Abstract: Examples include a method of performing failover of in an I/O architecture by allocating a first set of resources, associated with a first port of a physical device, to a virtual device, allocating a second set of resources, associated with a second port of the physical device, to the virtual device, assigning the virtual device to a virtual machine, activating the first set of resources, and transferring data between the virtual machine and the first port using the virtual device and the first set of resources. The method further includes detecting an error in the first set of resources, deactivating the first set of resources and activating the second set of resources, and transferring data between the virtual machine and the second port using the virtual device and the second set of resources.

公开(公告)号：US20200099628A1

公开(公告)日：2020-03-26

申请号：US16697666

申请日：2019-11-27

Applicant: Intel Corporation

Inventor： Neerav Parikh ,  Nrupal Jani

IPC: H04L12/863 ,  G06F9/455 ,  H04L12/815 ,  H04L29/12 ,  H04L29/08

Abstract: The present disclosure is directed to systems and methods for rate limiting network traffic generated by virtual machines (VMs) having multiple attached SR-IOV virtual functions. The network interface circuitry includes a plurality of offload circuits, each performing operations associated with a specific VF. Each VM attached to network interface circuitry is assigned a unique identifier. The unique identifier associated with a VM is inserted into the header of data packets originated by the VM. The packets are queued using a dedicated memory queue assigned to the VM. The aggregate data transfer rate for the VM is determined based upon counting the data packets originated by the VM and processed across the plurality of offload circuits. If the aggregate data transfer rate exceeds a data transfer rate threshold, traffic control circuitry limits the transfer of data packets from the memory queue associated with the VM to the plurality of offload circuits.