US 10,310,746 B2 · Method, associated memory device and controller thereof for performing dynamic resource management

Abstract

A method for performing dynamic resource management in a memory device, the memory device, and a controller thereof are provided. The memory device includes a non-volatile (NV) memory, and the NV memory includes a plurality of NV memory elements. The method may include: storing a plurality of sets of physical region descriptor (PRD) information related to a plurality of host commands, respectively, and storing a plurality of intermediate PRDs respectively corresponding to the plurality of sets of PRD information into a first queue; obtaining an intermediate PRD of the plurality of intermediate PRDs from the first queue, and storing the intermediate PRD into a second queue; sending a command to the NV memory according to the intermediate PRD in the second queue to access data; and when an operation of accessing the data is successful, releasing the intermediate PRD from the second queue to the first queue.

Claims20

Dependent claims

A method for performing dynamic resource management in a memory device, the memory device comprising a non-volatile (NV) memory, the NV memory comprising a plurality of NV memory elements, and the method comprising:

storing a plurality of sets of physical region descriptor (PRD) information related to a plurality of host commands, respectively, and storing a plurality of intermediate PRDs respectively corresponding to the plurality of sets of PRD information into a first queue, wherein the plurality of host commands are received from outside the memory device, and any of the plurality of intermediate PRDs comprises an identifier (ID) of a set in the plurality of sets of PRD information;
obtaining an intermediate PRD of the plurality of intermediate PRDs from the first queue, and storing the intermediate PRD into a second queue;
sending a command to the NV memory according to the intermediate PRD in the second queue, to access data in at least one NV memory element of the plurality of NV memory elements;
and
when an operation of accessing the data is successful, releasing the intermediate PRD from the second queue to the first queue.

2 more elements

A memory device, comprising:

a non-volatile (NV) memory, arranged to store information, wherein the NV memory comprises a plurality of NV memory elements;
and
a controller, coupled to the NV memory, the controller arranged to control operations of the memory device, wherein the controller comprises:
a multi-queue type physical region descriptor (PRD) storage module, arranged to store at least one PRD, wherein the multi-queue type PRD storage module comprises:
a PRD information register;
a first queue;
and
a second queue;
and
a processing circuit, arranged to control the controller according to a plurality of host commands from a host device, to allow the host device to access the NV memory via the controller, wherein:
the controller stores a plurality of sets of PRD information related to the plurality of host commands into the PRD information register, respectively, and stores a plurality of intermediate PRDs respectively corresponding to the plurality of sets of PRD information into the first queue, wherein any of the plurality of intermediate PRDs comprises an identifier (ID) of a set in the plurality of sets of PRD information;
the controller obtains an intermediate PRD of the plurality of intermediate PRDs from the first queue, and stores the intermediate PRD into the second queue;
the controller sends a command to the NV memory according to the intermediate PRD in the second queue, to access data in at least one NV memory element of the plurality of NV memory elements;
and
when an operation of accessing the data is successful, the controller releases the intermediate PRD from the second queue to the first queue.

12 more elements

A controller of a memory device, the memory device comprising the controller and a non-volatile (NV) memory, the NV memory comprising a plurality of NV memory elements, the controller comprising:

a multi-queue type physical region descriptor (PRD) storage module, arranged to store at least one PRD, wherein the multi-queue type PRD storage module comprises:
a PRD information register;
a first queue;
and
a second queue;
and
a processing circuit, arranged to control the controller according to a plurality of host commands from a host device, to allow the host device to access the NV memory via the controller, wherein:
the controller stores a plurality of sets of PRD information related to the plurality of host commands into the PRD information register, respectively, and stores a plurality of intermediate PRDs respectively corresponding to the plurality of sets of PRD information into the first queue, wherein any of the plurality of intermediate PRDs comprises an identifier (ID) of a set in the plurality of sets of PRD information;
the controller obtains an intermediate PRD of the plurality of intermediate PRDs from the first queue, and stores the intermediate PRD into the second queue;
the controller sends a command to the NV memory according to the intermediate PRD in the second queue, to access data in at least one NV memory element of the plurality of NV memory elements;
and
when an operation of accessing the data is successful, the controller releases the intermediate PRD from the second queue to the first queue.

9 more elements

Dependencies are inferred from the claim text.

Method, associated memory device and controller thereof for performing dynamic resource management

Life of this patent

Method, associated memory device and controller thereof for performing dynamic resource management

Life of this patent

Abstract

Claims20