SELECTION OF RECEIVE-QUEUE BASED ON PACKET ATTRIBUTES

• US 20120218885A1
• Filed: 05/08/2012
• Published: 08/30/2012
• Est. Priority Date: 12/16/2010
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Abel, Francois, Basso, Claude, Calvignac, Jean L., Vaidhyanathan, Natarajan, Verplanken, Fabrice, Verrilli, Colin B.
• Granted Patent: US 8,675,660 B2
• Time in Patent Office: Days
• US Class Current: 370/229
• CPC Class Codes: H04L 47/6215 Individual queue per QOS, rate or priority

Abstract

According to embodiments of the invention, there is provided a method for operating a network processor. The network processor receiving a first data packet in a stream of data packets and a set of receive-queues adapted to store receive data packets. The network processor processing the first data packet by reading a flow identification in the first data packet; determining a quality of service for the first data packet; mapping the flow identification and the quality of service into an index for selecting a first receive-queue for routing the first data packet; and utilizing the index to route the first data packet to the first receive-queue.

Claims

1-6. -6. (canceled)

7. A method for operating a network processor comprising:

receiving a first data packet in a stream of data packets;

processing the first data packet by reading a flow identification in the first data packet;

determining a quality of service for the first data packet;

mapping the flow identification and the quality of service into an index for selecting a first receive-queue in a set of receive-queues adapted to store receive data packets for routing the first data packet; and

utilizing the index to route the first data packet to the first receive-queue.

8. The method of claim 7 further comprising:

utilizing a hashing function against the flow identification to construct the index.

9. The method of claim 7 further comprising:

utilizing a classification function accessing a ternary content addressable memory for the first data packet.

10. The method of claim 7 further comprising:

utilizing a quality of service function for identifying the quality of service.

11. The method of claim 7 further comprising:

utilizing a parser for decoding the first data packet; and

sending a set of information to a set or other processing units for further processing.

12. The method of claim 11, wherein the set of information further comprising:

including a logical port identification and a logical port configuration table.

13-18. -18. (canceled)