Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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

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

Active Publication Date: 2022-03-15
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 system based on a DMA engine, so as to solve the problem of using multiple DMA engines in the prior art to achieve multi-client access. high cost due to storage

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

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 present application provides a data reading method, device and data transmission system based on a DMA engine. The method includes: receiving a read request command from a user terminal and buffering it in the first memory in a first order, and sending the read request command to the user terminal in the first order. For the order of request commands, the first memory corresponds to the user terminal one by one; the read request command is sent to the corresponding destination storage terminal, and the second memory is used to record the second order, and the second order is corresponding to the read request command received by the destination storage terminal In the order of the user end, the second memory corresponds to the destination storage end one by one; the returned data is cached to the third memory according to the second order, one destination storage end corresponds to multiple third memories, and the third memory corresponding to the destination storage end corresponds to the user end One-to-one correspondence; transmit the return data corresponding to the read request command to the client according to the first sequence. Compared with the prior art, the method reduces the number of DMA engines and interfaces, thereby reducing scheduling overhead.

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
Patent Type & Authority Patents(China)
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 Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com