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A method and system for evaluating discreteness of rss Key value

An evaluation method and evaluation system technology, which is applied in the field of RSSKey value discreteness evaluation, and can solve the problem of inaccurate SecretKey value discreteness, etc.

Active Publication Date: 2019-09-24
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is inaccurate to evaluate the dispersion of the Secret Key value by calculating the variance (or standard deviation) of the overall 32-bit Hash result or the overall lower 7-bit value of the Hash result

Method used

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  • A method and system for evaluating discreteness of rss Key value
  • A method and system for evaluating discreteness of rss Key value

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] The embodiment of the present invention discloses a method and system for evaluating the discreteness of RSS Key values ​​of Intel 82599 10 Gigabit network cards, so as to realize screening out the optimal Secret Key.

[0044] see figure 1 , a kind of RSS Key value dispersion evaluation method of Intel 82599 10 Gigabit network card that the embodiment of the present invention provides, comprising:

[0045] S101. Obtain the input array and the Secret Key val...

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Abstract

The invention discloses a RSS Key value discreteness evaluation method and system of an Intel 82599 10-Gigabit network card. The method comprises the following steps: acquiring an input array, a to-be-tested Secret Key value and operation number; computing a Hash result corresponding to each Secret Key value by use of a built-in Hash function and the input array and the to-be-tested Secret Key value according to the operation number; computing the occurrence number of a predetermined character on the lower 7 bits of each Hash result, judging the Hash result with the maximum discreteness, and using the Secret Key value corresponding to the Hash result with the maximum discrete degree as the optimal Secret Key value; visible, the discreteness of the Secret Key value is evaluated through the discrete degree of each on the lower 7 bits of the Hash result, and the effect of the Secret Key for shutting hardware can be improved.

Description

technical field [0001] The present invention relates to the technical field of server hardware network card and network card drive, more specifically, relates to a method and system for evaluating the discreteness of RSS Key value of Intel82599 10G network card. Background technique [0002] Intel 82599 10 Gigabit network card RSS hardware shunt is realized based on its built-in Hash function. The Hash function is based on the five-tuple (protocol type TCP / UDP, source IP address, source port, destination IP address, destination port) A pre-determined and a 40-byte Secret Key value is calculated by shifting and XOR operations to obtain a 32-bit Hash result. The network card distributes the received packets to 128 receiving rings through the value of the lower 7 bits of the Hash result, and then redirects the received packets to 16 hardware queues through a redirection table (the entries in each redirection table are 4 bits). Through the Intel 82599 10 Gigabit network card R...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/22G06F11/26H04L12/26
Inventor 马旭
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD