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Transmission method and device for cache consistency message

A cache and transmission method technology, applied in the computer field, can solve the problems of low transmission efficiency, blockage of read and write responses, etc., and achieve the effect of improving transmission efficiency and avoiding blockage.

Active Publication Date: 2017-05-17
LOONGSON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a transmission method and device for high-speed cache coherence messages, which are used to solve the problem that the read-write response is blocked on the transmission channel and the transmission efficiency is low in the Cache consistency transmission method in the prior art

Method used

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  • Transmission method and device for cache consistency message
  • Transmission method and device for cache consistency message
  • Transmission method and device for cache consistency message

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Embodiment Construction

[0041] figure 1 It is a flow chart of a method for transmitting a cache coherency message provided by an embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0042] Step S100, according to the HyperTransport protocol, determine that the NONPOST channel of the HyperTransport protocol is used to transmit the read command in the Cache consistency message, the POST channel is used to transmit the write command in the Cache consistency message, and the RESPONSE channel is used to transmit the Cache consistency message. Read response, the newly added BRESPONSE channel is used to transmit the write response in the Cache consistency message.

[0043] Step S101 , transmit at least one of a read command, a write command, a read response and a write response on a corresponding channel in the HyperTransport protocol.

[0044] The executive body of the above steps is the HyperTransport bus controller. In practice, a dedicated chip, such as an Applicati...

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Abstract

The invention provides a transmission method and device of high-speed cache consistency information. The method comprises the steps that according to a HyperTransport protocol, reading orders used in high-speed cache consistency information transmission of a NONPOST channel of the HyperTransport protocol are determined, a POST channel is used for transmitting writing orders in the high-speed cache consistency information, a RESPONSE channel is used for transmitting reading responses in the high-speed cache consistency information, and a newly-added BRESPONSE channel is used for transmitting writing responses in the high-speed cache consistency information; and at least one kind of the reading orders, the writing orders, the reading responses and the writing responses are transmitted on a corresponding channel of the HyperTransport protocol. According to the technical scheme, blocking of the reading responses and the writing responses on a transmission channel is avoided, and the transmission efficiency of the reading responses and the writing responses is improved.

Description

technical field [0001] The invention relates to the field of computers, in particular to a method and device for transmitting cache consistency messages. Background technique [0002] The HyperTransport protocol is a high-performance point-to-point packet switching-based interconnection technology for board-level integrated circuit interconnection. It is mainly used for communication between processors and peripheral devices, and interconnection between processor chips. [0003] The existing technology is based on the HyperTransport1.0 protocol to realize inter-chip transmission of cache (Cache) coherent messages. Specifically, by matching the NONPOST channel of the HyperTransport1.0 protocol with the read command channel of the Cache coherence protocol, corresponding the POST channel of the HyperTransport1.0 protocol with the write command channel of the Cache coherence protocol, and matching the response of the HyperTransport1.0 protocol The channel corresponds to the res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/0817G06F12/0815
Inventor 吴鹏王焕东李鹏
Owner LOONGSON TECH CORP
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