TCP-aware receive side coalescing

Patent metadata

Field	Value
Publication number	US-8996718-B2
Application number	US-201213364585-A
Country	US
Kind code	B2
Filing date	Feb 2, 2012
Priority date	Feb 2, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

In response to a transport control protocol (TCP) packet received from an Internet protocol (IP) layer of a TCP/IP stack of a data processing system, a large receive offload (LRO) layer of the TCP/IP stack is to identify a flow associated with the TCP packet, to determine whether the identified flow should be coalesced based on a set of one or more rules, to coalesce the TCP packet into a pending coalesced TCP packet without immediately sending the TCP packet to a TCP layer of the TCP/IP stack, if it is determined that the identified flow should be coalesced based on the set of one or more rules, and otherwise to immediately send the TCP packet to the TCP layer for TCP processing.

First claim

What is claimed is:

1. A computer-implemented method, comprising:
in response to a transport control protocol (TCP) packet received from an Internet protocol (IP) layer of a TCP/IP stack of a data processing system:
identifying, by a large receive offload (LRO) layer between the IP layer and a TCP layer of the TCP/IP stack, a flow associated with the TCP packet;
receiving, at the LRO layer, instructions or feedback from the TCP layer;
determining whether or how the identifie…

Assignees

• Biswas Anumita
• Apple Inc

Inventors

• Biswas Anumita

Classifications

• H04L47/28

  Electricity · mapped topic

• H04L47/365 Primary

  Electricity · mapped topic

• H04L47/193

  Electricity · mapped topic