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A method and system for optimizing descriptor processing order based on SSD

A technology for processing sequences and descriptors, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve the problems of SSD security and data integrity degradation, and can not be timely, so as to improve the execution sequence, The effect of reducing completion time and improving safety and stability

Active Publication Date: 2022-06-07
SHENZHEN YILIAN INFORMATION SYST CO LTD
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Problems solved by technology

[0002] Each CE of the existing NFC channel corresponds to a CDMA channel. When sending the descriptor, NFC will send the descriptor to the NFC channel in sequence, and each NFC channel is bound to the corresponding CDMA channel. Once the channel sends the description character, the CDMA channel can no longer be reused until the channel is cleared. In the case of abnormal handling, SSD as a storage device needs to write some important data (FTL mapping table) into NAND to prevent data loss, while the prior art It cannot respond to the descriptors that need to be completed in the shortest time in a timely manner, which reduces the security and data integrity of the SSD and cannot meet the requirements

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  • A method and system for optimizing descriptor processing order based on SSD
  • A method and system for optimizing descriptor processing order based on SSD
  • A method and system for optimizing descriptor processing order based on SSD

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Embodiment Construction

[0059] In order to more fully understand the technical content of the present invention, the technical solutions of the present invention are further introduced and described below with reference to specific embodiments, but are not limited thereto.

[0060] like Figure 1 to Figure 5 specific embodiments shown in which, such as Figure 1 to Figure 2 The prior art shown; each CE of the NFC channel corresponds to a CDMA channel. When sending descriptors, NFC will send the descriptors to the NFC channel in sequence, and each NFC channel is bound to the corresponding CDMA channel. The channel has issued a descriptor, the CDMA channel cannot be reused until the channel is cleared.

[0061] Among them, such as figure 2 As shown, the NFC exception handling process is as follows:

[0062] 1. Determine whether an abnormal interrupt is generated; 2. When an interrupt occurs, issue the descriptor corresponding to the processing exception; 3. NFC sends the descriptors in the NFC chan...

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Abstract

The present invention relates to a method and system for optimizing descriptor processing sequence based on SSD; wherein, the method includes: S1, judging whether there is an abnormal event triggering an interruption; S2, issuing a descriptor corresponding to abnormal processing, and marking it as high priority level descriptor; S3, judge whether there is a descriptor with a priority mark in the sent descriptor; S4, NFC channel sends the descriptor in order; S5, judge whether the CDMA channel is idle; S6, wait for the CDMA channel to be idle; S7 , the CDMA channel sends the descriptor to the NAND, and the NAND executes the descriptor in order; S8, resets the CDMA channel, and the green channel of the NFC sends the priority tag descriptor first; S9, the CDMA channel sends the priority tag descriptor to the NAND , NAND executes descriptors with priority marks. In the present invention, the descriptors with priority execution marks are executed preferentially from the green channel, which effectively improves the execution order of the descriptors, reduces the completion time of the executed descriptors, and improves the security and stability of the SSD.

Description

technical field [0001] The present invention relates to the technical field of optimized descriptors of solid-state disks, and more particularly to a method and system for optimizing the processing order of descriptors based on SSDs. Background technique [0002] Each CE of the existing NFC channel corresponds to a CDMA channel. When sending descriptors, NFC will send the descriptors to the NFC channel in sequence. Each NFC channel is bound to the corresponding CDMA channel. Once the channel sends a description The CDMA channel cannot be reused until the channel is cleared. In the case of abnormal processing, the SSD as a storage device needs to write some important data (FTL mapping table) into NAND to prevent data loss, and the prior art It cannot respond to the descriptor to be completed in the shortest time, which reduces the security and data integrity of the SSD and cannot meet the demand. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06H04W72/10H04W4/80
CPCG06F3/062G06F3/0619G06F3/0659G06F3/0679H04W4/80H04W72/56G06F3/061
Inventor 马越冯元元周晨杰周强
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD
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