Western Digital Technologies, Inc.

Tomer Spector

Doron Ganon

Eran Arad

David Chaim Brief

Amir Rozen

Sagi Taragan

Eyal Hamo

Edris Abzakh

A data storage device comprising a non-volatile storage medium configured to store data, a data port configured to receive and transmit data between a host computer system and the data storage device, and a controller. The controller is configured to receive, via the data port, a notification activation, and receive, via the data port, a command data structure comprising a command for the data storage device to perform an operation. The controller is further configured to in response to receiving the command data structure, perform the operation, the operation being defined by an in-progress state and a completed state, and in response to determining that the operation is in the completed state and in response to determining the notification activation, transmit, via the data port, a response data structure comprising an indication that the operation is in the completed state.

Asynchronous operation completion notification

A plurality of commands is received from at least one application. A command of the plurality of commands is to be performed by a Data Storage Device (DSD) after one or more conditions have been satisfied by the DSD. The plurality of commands is enqueued and the command is enqueued with the one or more conditions for performing the command. It is determined whether the one or more conditions have been satisfied by the DSD, and in response to determining that the one or more conditions have been satisfied by the DSD, the command is sent to the DSD for performance of the command.

Command queuing for data storage devices

A storage device includes a non-volatile memory (NVM) and a storage device controller. The storage device controller includes a NVM interface coupled to the NVM and one or more task queues. The storage device controller is operable to pick a task from one or more queues of the storage device. The task is parsed based upon presence of an extra header segment with an execution condition. The task without the extra header segment is sent to execution. Whether the execution condition of the extra header segment of the task is met is determined. The task with the execution condition met is sent to execution. The task with the execution condition unmet is postponed.

Execution condition embedded in a command or a request to storage device

A method for executing device management commands includes providing a device management command queue indication. The method also includes receiving, from a host in response to providing the device management command queue indication, device management commands and a respective command type for each device management command. The method also includes determining a command execution order for the device management commands based on the command types corresponding to respective device management commands and queueing, in a device management command queue, the device management commands based on the command execution order. The method also includes executing the device management commands according to the device management command queue. The method also includes communicating, to the host, a command execution indication responsive to executing the device management commands.

Systems and methods for queuing device management configuration requests

A system and method for time stamp synchronization are disclosed. In one embodiment, first and second devices are provided. The second device receives a first time stamp of the first device, wherein the first time stamp was generated in response to a time stamp synchronization event common to the first and second devices; generates a second time stamp of the second device in response to the time stamp synchronization event, wherein the first and second time stamps are in different time domains; and correlates the first and second time stamps, wherein correlating the first and second time stamps provide a relationship between the time domains because the first and second time stamps were both generated with respect to the same time stamp synchronization event common to the first and second devices.

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Kibbutz Ginegar, Israel

Tomer Spector