Network performance scaling

• US 20070121662A1
• Filed: 11/30/2005
• Published: 05/31/2007
• Est. Priority Date: 11/30/2005
• Status: Abandoned Application

• Current Assignee: Christopher Leech
• Original Assignee: Christopher Leech
• Inventors: Leech, Christopher
• Application Number:
  US11/292,213
• Publication Number:
  US 20070121662A1
• Time in Patent Office: Days
• US Class Current: 370/412
• CPC Class Codes: H04L 49/90 Buffering arrangements

Abstract

In an embodiment, a method is provided. The method of this embodiment provides in response to receiving one or more packets on a computing platform, storing each of the one or more packets in a corresponding one of a plurality of receive queues, each of the plurality of receive queues corresponding to one of a plurality of processors on the computing platform; generating an interrupt to an operating system on the computing platform to indicate the presence of one or more packets to be processed; for each of the receive queues having one or more packets to be processed, scheduling a corresponding processing device structure with the operating system; and in response to the operating system processing scheduled transactions, for each of the processing device structures, sending packets from a corresponding receive queue to a corresponding one of the plurality of processors to be processed.

Claims

1. A method comprising:

in response to receiving one or more packets on a computing platform, storing each of the one or more packets in a corresponding one of a plurality of receive queues, each of the plurality of receive queues corresponding to one of a plurality of processors on the computing platform;

generating an interrupt to an operating system on the computing platform to indicate the presence of one or more packets to be processed;

for each of the receive queues having one or more packets to be processed, scheduling a corresponding processing device structure with the operating system; and

in response to the operating system processing scheduled transactions, for each of the processing device structures, sending packets from a corresponding receive queue to a corresponding one of the plurality of processors to be processed.

2. The method of claim 1, wherein the operating system comprises a Linux operating system.

3. The method of claim 1, wherein said scheduling a corresponding processing device structure with the operating system comprises the operating system executing a packet processing ISR (interrupt service routine) in response to the interrupt generated to the operating system.

4. The method of claim 3, wherein the packets are received by a network component of a network controller, and the ISR is created by a device driver that controls the network controller.

5. A method comprising:

create a processing device structure for each receive queue associated with a network component, each receive queue to store incoming packets, and each receive queue corresponding to one of a plurality of processors on a computing platform, each of the plurality of processors operable to process one or more packets stored on a corresponding receive queue;

indicate a packet processing ISR (interrupt service routine) to an operating system, the packet processing ISR to schedule one or more of the processing device structures for each of the receive queues having one or more packets to be processed;

in response to the operating system processing the scheduled processing device structures by indicating the processing device structures to corresponding ones of the plurality of processors, for each processing device structure, mapping back to a corresponding receive queue, retrieving one or more packets from the receive queue, and transmitting the one or more packets to the corresponding processor.

6. The method of claim 5, wherein the operating system comprises a Linux operating system.

7. The method of claim 5, wherein each processing device structure is linked to one or more driver private structures, and each driver private structure is linked to a routing device structure, wherein the driver private structures and the routing device structure are used in an SMP (symmetrical multi-processing) system for egress packet processing.

8. The method of claim 5, wherein network component is part of a network controller, and the ISR is created by a device driver that controls the network controller.

9. An apparatus comprising:

logic to;

create a processing device structure for each receive queue associated with a network component, each receive queue to store incoming packets, and each receive queue corresponding to one of a plurality of processors on a computing platform, each of the plurality of processors operable to process one or more packets stored on a corresponding receive queue;

indicate a packet processing ISR (interrupt service routine) to an operating system, the packet processing ISR to schedule one or more of the processing device structures for each of the receive queues having one or more packets to be processed;

in response to the operating system processing the scheduled processing device structures by sending the processing device structures to corresponding ones of the plurality of processors, for each processing device structure, mapping back to a corresponding receive queue, retrieving one or more packets from the receive queue, and transmitting the one or more packets to the corresponding processor.

10. The apparatus of claim 9, wherein the operating system comprises a Linux operating system.

11. The apparatus of claim 9, wherein each processing device structure is linked to one or more driver private structures, and each driver private structure is linked to a routing device structure, wherein the driver private structures and the routing device structure are used in an SMP (symmetrical multi-processing) system for egress packet processing.

12. The apparatus of claim 9, wherein the network component is part of a network controller, and the ISR is created by a device driver that controls the network controller.

13. A system comprising:

a Microsoft®

Windows®

operating system having knowledge of a single receive queue associated with a network component;

a network controller to interface with the operating system; and

a device driver to control the network controller, the device driver having logic to;

create a processing device structure for each receive queue associated with a network component of the network controller, each receive queue to store incoming packets, and each receive queue corresponding to one of a plurality of processors on a computing platform, each of the plurality of processors operable to process one or more packets stored on a corresponding receive queues;

indicate a packet processing ISR (interrupt service routine) to the operating system, the packet processing ISR to schedule one or more of the processing device structures for each of the receive queues having one or more packets to be processed;

in response to the operating system processing the scheduled processing device structures by sending the processing device structures to corresponding ones of the plurality of processors, for each processing device structure, mapping back to a corresponding receive queue, retrieving one or more packets from the receive queue, and transmitting the one or more packets to the corresponding processor.

14. The system of claim 13, wherein the operating system comprises a Linux operating system.

15. The system of claim 13, wherein the system comprises an SMP (symmetrical multi-processing) system, and each processing device structure is linked to one or more driver private structures, and each driver private structure is linked to a routing device structure, wherein the driver private structures and the routing device structure are used in egress packet processing.

16. The system of claim 13, wherein network component is part of a network controller, and the ISR is created by a device driver that controls the network controller.

17. An article of manufacture having stored thereon instructions, the instructions when executed by a machine, result in the following:

create a processing device structure for each receive queue associated with a network component, each receive queue to store incoming packets, and each receive queue corresponding to one of a plurality of processors on a computing platform, each of the plurality of processors operable to process one or more packets stored on a corresponding receive queue;

indicate a packet processing ISR (interrupt service routine) to an operating system, the packet processing ISR to schedule one or more of the processing device structures for each of the receive queues having one or more packets to be processed;

in response to the operating system processing the scheduled processing device structures by indicating the processing device structures to corresponding ones of the plurality of processors, for each processing device structure, mapping back to a corresponding receive queue, retrieving one or more packets from the receive queue, and transmitting the one or more packets to the corresponding processor.

18. The article of claim 17, wherein the operating system comprises a Linux operating system.

19. The article of claim 17, wherein each processing device structure is linked to one or more driver private structures, and each driver private structure is linked to a routing device structure, wherein the driver private structures and the routing device structure are used in an SMP (symmetrical multi-processing) system for egress packet processing.

20. The article of claim 17, wherein network component is part of a network controller, and the ISR is created by a device driver that controls the network controller.