Techniques for non-blocking control information and data synchronization by a data storage device

A method of operation of a data storage device, the method comprising:

• sending data from a controller of a data storage device to a memory of a host device;
• determining first parity information associated with the data before the data is sent to the memory of the host device;
• after the data is sent to the memory of the host device and in response to initiating an operation associated with the data, determining second parity information associated with the data;
• and
• in response to the first parity information differing from the second parity information, terminating the operation,
• wherein the data includes control information, and wherein the operation includes a non-blocking control sync operation to store the control information to a non-volatile memory while allowing updating of the control information during the storing of the control information.

An apparatus comprising:

• means for sending data to a memory of a host device;
• means for determining first parity information based on the data before the data is sent to the memory of the host device, and for determining, after the data is sent to the memory of the host device and in response to initiating an operation associated with the data, second parity information associated with the data;
• and
• means for comparing the first parity information to the second parity information to enable termination of the operation in response to the first parity information differing from the second parity information,
• wherein the data includes control information, and wherein the operation includes a non-blocking control sync operation to store the control information to a non-volatile memory while allowing updating of the control information during the storing of the control information.

A method of operation of a data storage device, the method comprising:

• performing a first operation to store control information to a non-volatile memory of a data storage device;
• performing a second operation to store data to a controller of the data storage device during the first operation, the data associated with at least a first logical block address (LBA);
• and
• in response to determining that the first LBA is included in a range of LBAs associated with the first operation, selectively updating a first portion of the control information at the non-volatile memory,
• wherein the first portion of the control information is updated independently of a second portion of the control information, wherein the first portion is associated with a first layer specified by a flash translation layer (FTL) of the data storage device, and wherein the second portion is associated with a second layer specified by the FTL.