Aligned command based firmware architecture for unaligned write handling

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United States of America Patent

PATENT NO 11934695
APP PUB NO 20220413756A1
SERIAL NO

17356054

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Abstract

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Aspects of a storage device including a memory and a controller are provided. The controller may convert unaligned write commands into aligned write commands and generate unaligned information associated with the unaligned write commands. In some aspects, the unaligned information indicates offset information for each unaligned write command. The controller may accumulate a threshold size of aligned write command transfer sizes in an aggregation command queue and fetch pre-pad or post-pad data for each unaligned write command in parallel based on the aggregation command queue having accumulated the threshold size of aligned write command transfer sizes. The controller may transfer host data for each unaligned write command to a data buffer at a corresponding offset within the data buffer based on the unaligned information. The controller may generate aligned data using the pre-pad or post-pad data combined with the host data and program the aligned data into a memory die.

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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Agarwal, Dinesh Karnataka, IN 28 365
Chandramani, null Karnataka, IN 3 2
Shivakumar, Sharath Karnataka, IN 1 0
Sinha, Ruchir Karnataka, IN 14 13

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