Data reading method and device based on DMA engine and data transmission system

A data reading and engine technology, applied in the field of data reading, can solve the problem of high cost

Active Publication Date: 2021-01-08
BEIJING ZETTASTONE TECH CO LTD +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of this application is to provide a data reading method, device, computer-readable storage medium, processor, and data transmission sy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data reading method and device based on DMA engine and data transmission system
  • Data reading method and device based on DMA engine and data transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0026] It should be noted that the terms "first" and "second...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a data reading method and device based on a DMA engine and a data transmission system, and the method comprises the steps: receiving a reading request command of a user side, caching the reading request command to a first memory according to a first sequence, sending the reading request command to the user side according to the first sequence, and enabling the first memory to be in one-to-one correspondence with the user side; sending the read request command to a corresponding destination storage end, recording a second sequence by adopting a second memory, the second sequence being a user end sequence corresponding to the read request command received by the destination storage end, and the second memory being in one-to-one correspondence with the destination storage end; caching the returned data to third memories according to a second sequence, enabling one destination storage end to correspond to a plurality of third memories, and enabling the third memoriescorresponding to the destination storage ends to be in one-to-one correspondence with the user ends; and transmitting return data corresponding to the read request command to the user side accordingto the first sequence. Compared with the prior art, the method has the advantages that the number of DMA engines and interfaces is reduced, and then the scheduling overhead is reduced.

Description

technical field [0001] The present application relates to the technical field of data reading, and in particular, relates to a DMA engine-based data reading method, device, computer-readable storage medium, processor, and data transmission system. Background technique [0002] The DMA engine is one of the most important data modules in the memory controller, and its performance optimization is very important. In the SSD controller, there is usually a need for multiple clients to read data from multiple storage terminals. In this case, multiple DMA read engines are generally required to participate in data reading. [0003] Coordination among individual clients also has an impact on overall DMA performance. [0004] In addition, the performance of the DMA read engine depends on the data receiving capability of the client side. [0005] The performance of the DMA read engine is directly related to the delay of returning data from the destination and the data receiving capabi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F13/28
CPCG06F13/28
Inventor 王涛
Owner BEIJING ZETTASTONE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap