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Method of achieving function of network adapter unloading, network adapter, host system and network device

A host system and network card technology, applied in the field of communication, can solve the problem of poor scalability of network card offloading functions

Active Publication Date: 2013-06-05
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] The embodiment of the present invention provides a method for realizing the network card offloading function, a network card, a host system and a network device, aiming to solve the problem of poor scalability of the network card offloading function in the prior art

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  • Method of achieving function of network adapter unloading, network adapter, host system and network device
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  • Method of achieving function of network adapter unloading, network adapter, host system and network device

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] In the embodiment of the present invention, it is first judged whether the received data message is a known data message of the network card or an unknown data message of the network card. The policy entry in the network card performs the corresponding protocol stack unloading operation on the known data message of the network card. When the data message is an unknown data message of the network card, the unknown data message of the network card is analyzed to generate a new policy entry, and then update the new policy entry to the host policy table and the network card policy table at the s...

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Abstract

The invention belongs to the technological field of communication, and provides a method of achieving a function of network adapter unloading, a network adapter, a host system and a network device. When datagram received by the network adapter or the host system is an unknown datagram of the network adapter, the unknown datagram of the network adapter is analyzed to generate new strategy items which are updated into a host strategy table and a network adapter strategy table. For datagram containing new private or standard protocol header Tag, only a datagram analyzing function module is necessary to update, so that the datagram analyzing function module can process the datagram and issue the new strategy items into the host strategy table and the network adapter strategy table, but the network adapter is unnecessary to change, and the dynamic extension of the function of the network adapter unloading is achieved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for realizing the unloading function of a network card, a network card, a host system and network equipment. Background technique [0002] With the rapid development of Internet services, network video traffic has increased sharply. In order to fully utilize hardware resources, server virtualization technology has been more and more widely used in data centers. In this case, the CPU resource occupation rate of TCP / IP network protocol stack processing is getting higher and higher, and may even become the bottleneck of the entire server system. In order to reduce the load on the CPU and improve the performance of the entire server system, network adapter (network card) manufacturers have launched network cards with offload functions one after another. , TCP / UDP message slicing, etc.) are offloaded to the network card for processing, thereby reducing the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04W4/60
CPCH04L67/30H04W4/003H04L29/08H04L41/00H04L69/22H04W4/60
Inventor 杨小华孙福清王云贵
Owner HUAWEI TECH CO LTD
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