CN115668153A - 闪存控制方法和装置 - Google Patents

闪存控制方法和装置 Download PDF

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Publication number
CN115668153A
CN115668153A CN202080101642.4A CN202080101642A CN115668153A CN 115668153 A CN115668153 A CN 115668153A CN 202080101642 A CN202080101642 A CN 202080101642A CN 115668153 A CN115668153 A CN 115668153A
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CN
China
Prior art keywords
data
entry
ftl
ppn
lba
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Pending
Application number
CN202080101642.4A
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English (en)
Inventor
苏杰
林财成
朱胜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN115668153A publication Critical patent/CN115668153A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7201—Logical to physical mapping or translation of blocks or pages

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Memory System (AREA)

Abstract

本申请提供了一种闪存控制方法和装置，该装置包括随机存储器，用于存储闪存转换层FTL二级表；控制器，用于接收主机发送的数据访问指令，所述数据访问指令包括目标数据的目标逻辑块地址LBA；在所述FTL二级表的第一条目指示的LBA地址段对应的物理页号PPN连续，并且所述第一条目对应有效数据空间的情况下，根据所述目标LBA和所述第一条目中的起始PPN访问所述目标数据，所述起始PPN是所述第一条目指示的LBA地址段中第一个LBA对应的PPN。该闪存控制装置可以通过FTL二级表的信息直接访问目标数据，无需加载和替换FTL一级表，提高了数据访问的效率。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN202080101642.4A 2020-07-31 2020-07-31 闪存控制方法和装置 Pending CN115668153A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/106229 WO2022021337A1 (zh) 2020-07-31 2020-07-31 闪存控制方法和装置

Publications (1)

Publication Number Publication Date
CN115668153A true CN115668153A (zh) 2023-01-31

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ID=80037325

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080101642.4A Pending CN115668153A (zh) 2020-07-31 2020-07-31 闪存控制方法和装置

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CN (1) CN115668153A (zh)
WO (1) WO2022021337A1 (zh)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8364931B2 (en) * 2009-06-29 2013-01-29 Mediatek Inc. Memory system and mapping methods using a random write page mapping table
CN102521160B (zh) * 2011-12-22 2015-04-01 上海交通大学 写缓冲检测器、并行通道写入方法
KR20130084846A (ko) * 2012-01-18 2013-07-26 삼성전자주식회사 플래시 메모리를 기반으로 하는 저장 장치, 그것을 포함한 사용자 장치, 그리고 그것의 데이터 읽기 방법

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WO2022021337A1 (zh) 2022-02-03

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