Qlogic Corporation

David C Somayajulu

Ying Ping Lok

Michael Ivan Thompson

Shashank Pandhare

Ronald M Mercer

Method and system for managing transmit descriptors (TDs) for transmitting information over a network connection is provided. The method includes, allocating a minimum number of TDs to plural network connections at any given time; and determining an additional number of TDs for allocation to plural network connections, wherein the additional number of TDs is based on network traffic. The system includes a computing system with an operating system, a system memory and a network device driver; and a network adapter coupled to the computing system, wherein the operating system checks for availability of data for transmission over a plurality of network connections; and the network device driver allocates a minimum number of transmit descriptors (TDs) to the plural network connections at any given time; and determines an additional number of TDs for allocation to the plural network connections, wherein the additional number of TDs is based on network traffic.

Method and system for managing transmit descriptors in a networking system

A method for sending/receiving a TCP segment is provided. The sending process includes, determining if a TCP port can be offloaded; saving a host system's time stamp value; replacing a host system's time stamp value with a TCP offload engine ('TOE') adapter's time stamp value; and sending the TCP segment via the TOE adapter. The receiving process includes verifying if a TCP port is being offloaded by a host system to the TOE adpter; retrieving the host system's time stamp value; and inserting the host system's time stamp value in the received TCP segment before the forwarding the received TCP segment to the host system.

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Laguna Niguel, CA, United States of America

David C Somayajulu