Method, device and system for transmitting data between intelligent network card and virtual machine
A smart network card and data transmission technology, applied in program control devices, electrical digital data processing, computers, etc., can solve problems such as abnormal failure and complexity of smart network cards
Active Publication Date: 2020-04-10
UCLOUD TECH CO LTD
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Problems solved by technology
[0003] The emergence of smart network cards has brought about a leap in performance, but due to the introduction of complex functions of offloading, the network card software packages (drivers and firmware) have become increasingly Complexity, so that the smart network card will also face the problem of abnormal failure of traditional software
Once the smart network card fails, the VF network card of the virtual machine also fails. At this time, even the disaster recovery scenario where the physical machine has dual smart network cards cannot be used
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[0029] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be presented in conjunction with a preferred embodiment, it does not mean that the features of the invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiments is to cover other options or modifications that may be extended based on the claims of the present invention. The following description contains numerous specific details in order to provide a thorough understanding of the present invention. The invention may also be practiced without these details. Also, some specific details will be omitted from the description in order to avoid obscuring or obscuring the gist of the present invent...
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The invention provides a method for transmitting data between an intelligent network card and a virtual machine, a control device, a storage medium and a system, and the method comprises the steps: loading an unloadable virtual function network card and a non-unloadable software network card on the virtual machine, and enabling the virtual function network card to correspond to the physical function of the intelligent network card; under the condition that the virtual function network card exists, setting the mode to be a mode that only the virtual function network card is started; when the intelligent network card breaks down, unloading the virtual function network card from the virtual machine, and starting a software network card; resetting the intelligent network card, and reloading the virtual function network card to the virtual machine after the resetting is successful. According to the method and the device, even if the intelligent network card fails, the forwarding of the virtual machine to the data traffic can be ensured, and the high-performance data forwarding can be recovered again after the intelligent network card is rapidly recovered.
Description
technical field [0001] The invention relates to a data transmission method, control device, storage medium and system between an intelligent network card and a virtual machine. Background technique [0002] With the continuous development of cloud computing, the smart network card has become the standard network card for cloud computing, which brings better performance by offloading forwarded data (traffic) to hardware. Allocate (load) the virtual function (VF) network card corresponding to the physical function (PF) of the smart network card on the virtual machine, whether the traffic is sent from the virtual machine to the smart network card, or received on the smart network card and forwarded to the cloud host, can successfully offload data to hardware, avoiding the use of systems (eg, CPUs) that use physical machines. [0003] The emergence of smart network cards has brought about a leap in performance, but due to the introduction of complex functions of offloading, the...
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IPC IPC(8): G06F9/455G06F15/173
CPCG06F9/45558G06F15/17306G06F2009/45579
Inventor 文旭
Owner UCLOUD TECH CO LTD