Paravirtualization acceleration through single root I/O virtualization

• US 20090300660A1
• Filed: 05/20/2009
• Published: 12/03/2009
• Est. Priority Date: 05/30/2008
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: LSI Corporation (Broadcom, Inc.)
• Inventors: Hoglund, Timothy E., Solomon, Richard L.
• Granted Patent: US 8,332,849 B2
• Time in Patent Office: Days
• US Class Current: 719/321
• CPC Class Codes: G06F 2209/548 Queue
• CPC Class Codes: G06F 9/5061 Partitioning or combining of resources
• CPC Class Codes: G06F 9/546 Message passing systems or structures, e.g. queues

Abstract

The present invention is directed to an information handling system device for operatively coupling with a device implementing Input/Output (I/O) virtualization for data transmission. The information handling system device may be configured for executing an operating system control program to manage one or more guest operating systems on the information handling system device. The operating system control program may include a paravirtualization driver for formulating a work queue entry according to the I/O virtualization of the device. Data may be transmitted between the one or more guest operating systems and the device via the paravirtualization driver.

Claims

1. A system, comprising:

an information handling system device for operatively coupling with a device implementing Input/Output (I/O) virtualization for data transmission, the information handling system device configured for executing an operating system control program to manage one or more guest operating systems on the information handling system device, the operating system control program including a paravirtualization driver for formulating a work queue entry according to the I/O virtualization of the device,

wherein data is transmitted between the one or more guest operating systems and the device via the paravirtualization driver.

2. The system of claim 1, wherein the paravirtualization driver communicates through a physical function.

3. The system of claim 2, wherein the paravirtualization driver formulates a work queue entry utilizing a Routing Identification (ID) for a corresponding virtual function.

4. The system of claim 1, wherein the device is implemented with a single work queue.

5. The system of claim 1, wherein the device is implemented with a plurality of work queues.

6. The system of claim 1, wherein the operating system control program assigns one or more virtual functions to the paravirtualization driver.

7. The system of claim 1, wherein the device is connected to the information handling system device via a Peripheral Component Interconnect (PCI) Express interface.

9. The system of claim 1, wherein the paravirtualization driver communicates through a physical function.

10. The system of claim 2, wherein the paravirtualization driver formulates a work queue entry utilizing a Routing Identification (ID) for a corresponding virtual function.

11. The system of claim 1, wherein the device is implemented with a single work queue.

12. The system of claim 1, wherein the device is implemented with a plurality of work queues.

13. The system of claim 1, wherein the operating system control program assigns one or more virtual functions to the paravirtualization driver.

14. The system of claim 1, wherein the device is connected to the information handling system device via a Peripheral Component Interconnect (PCI) Express interface.

16. The system of claim 1, wherein the paravirtualization driver communicates through a physical function.

17. The system of claim 2, wherein the paravirtualization driver formulates a work queue entry utilizing a Routing Identification (ID) for a corresponding virtual function.

18. The system of claim 1, wherein the device is implemented with a single work queue.

19. The system of claim 1, wherein the device is implemented with a plurality of work queues.

20. The system of claim 1, wherein the operating system control program assigns one or more virtual functions to the paravirtualization driver.

8. A system, comprising:

a device implementing Input/Output (I/O) virtualization for data transmission;

an information handling system device operatively coupled with the device, the information handling system device configured for executing an operating system control program to manage one or more guest operating systems on the information handling system device, the operating system control program including a paravirtualization driver for formulating a work queue entry according to the I/O virtualization of the device,

wherein data is transmitted between the one or more guest operating systems and the device via the paravirtualization driver.

15. A system, comprising:

a device implementing a Peripheral Component Interconnect (PCI) Express interface with Single Root Input/Output (I/O) Virtualization;

an information handling system device operatively coupled with the device, the information handling system device configured for executing an operating system control program to manage one or more guest operating systems on the information handling system device, the operating system control program including a paravirtualization driver for formulating a work queue entry according to the Single Root I/O Virtualization of the device,

wherein data is transmitted between the one or more guest operating systems and the device via the paravirtualization driver.