The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Aug. 04, 2023
Innogrit Technologies Co., Ltd., Shanghai, CN;
INNOGRIT TECHNOLOGIES CO., LTD., Shanghai, CN;
Abstract
This application discloses a method and system of using HMB as a cache of physical address mapping table. The method comprises: arranging physical addresses in order of logical addresses, physical mapping entries corresponding to a plurality of consecutive physical addresses form one table unit, and a logical address corresponding to a first entry of each table unit is used as an index of the table unit; determining HMB size, dividing all table units into a plurality of sections according to the HMB size, each section comprises a plurality of table units, each section is divided into a plurality of ways; calculating a metadata according to logical address corresponding to the first entry of the table unit to be stored and the HMB size, the metadata comprises a section number and a way number; writing the metadata and the table unit to be stored into the HMB. This application uses HMB as L2P address mapping table cache of SSD controller, saving or avoiding use cost of DRAM on SSD, and reducing SSD size.