Invention Grant
- Patent Title: Mode handling in multi-protocol devices
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Application No.: US16905387Application Date: 2020-06-18
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Publication No.: US11294579B2Publication Date: 2022-04-05
- Inventor: Ramanathan Muthiah , Hitesh Golechchha , Dinesh Kumar Agarwal
- Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
- Applicant Address: US CA San Jose
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee Address: US CA San Jose
- Agency: Arentfox Schiff LLP
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
Aspects of a multi-protocol storage device including a controller are provided which handle mode switches after a shutdown resulting in a large amount of unfinished work by phasing the work during and after initialization. The controller operates in a first mode such as an SD mode and a second mode such as a NVMe mode. In the event of a shutdown in the second mode resulting in unfinished work, the controller initializes in the first mode. During initialization, the controller determines whether a completion time for the unfinished work exceeds an initialization time in the first mode. When the completion time exceeds the initialization time, the controller performs a first portion of the work during initialization and postpones performance of at least a second portion of the unfinished work until after initialization. As a result, initialization timeouts in the first mode due to the unfinished work may be avoided.
Public/Granted literature
- US20210397352A1 Mode Handling in Multi-Protocol Devices Public/Granted day:2021-12-23
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