US 10,761,775 B2Granted

System and method for NVMe inter command association in SSD storage using a bridge device

AssigneeSamsung Electronics Co., Ltd.

InventorsRamdas P. Kachare, Oscar P. Pinto, Xuebin Yao, Wentao Wu, Stephen G. Fischer, Fred Worley

Life of this patent

Estimating the term…

Loading patent…

Abstract

According to some example embodiments, a method includes receiving, a first command from a host device; determining, if the first command is part of an association group of commands by determining a first value of a first parameter of the first command in an association context table entry is greater than zero, the first parameter including a total number of commands in the association group of commands; determining, a first value of a second parameter of the first command, the second parameter including a tag value identifying the association group of commands; decrementing, the first value of the first parameter of the first command in the association context table entry; determining, if the first value of the first parameter in the association context table entry is zero; and executing, an action indicated in a third parameter of the first command.

Claims20

Dependent claims

A method comprising:

receiving, at a storage controller, a first command from a host device;
determining, at the storage controller, that the first command is part of an association group of commands by determining a first value of a first parameter of the first command in an association context table entry is greater than zero, the first parameter comprising a total number of commands in the association group of commands;
determining, at the storage controller, based on determining the first value of the first parameter of the first command in the association context table entry is greater than zero, a first value of a second parameter of the first command, the second parameter comprising a tag value identifying the association group of commands;
decrementing, by the storage controller, the first value of the first parameter of the first command in the association context table entry;
determining, by the storage controller, that the first value of the first parameter in the association context table entry is zero;
and
executing, by the storage controller, based on determining the first value of the first parameter in the association context table entry is zero, an action indicated in a third parameter of the first command.

4 more elements

A system comprising:

a host device;
a bridge device connected to the host device at a first end of the bridge device;
and
a storage device connected to the bridge device at a second end of the bridge device, wherein the bridge device is configured to:
receive a first command from the host device;
collect, from the host device, data related to the first command;
generate one or more second commands based on the first command received from the host device and the data related to the first command;
and
transfer the one or more second commands to the storage device,
wherein the bridge device generates the one or more second commands by dividing the first command received from the host device in a plurality of commands, wherein the plurality of commands is associated with each other and belongs to an association group of commands and wherein the bridge device inserts an association tag (ATag) and an association size (ASize) or a total number of commands in the association group of commands in each of the plurality of commands, wherein the ATag is same for all the commands in the association group of commands.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/107,969Filed 21 Aug 2018 · us provisional application
Priority: 9 Feb 2018
Published: US 2019/0250855 A115 Aug 2019
Granted: 1 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G06F 3/061
Specifically adapted to achieve a particular effect: improving I/O performance
G06F 3/0659
Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices: command handling…
G06F 3/0604
Specifically adapted to achieve a particular effect: improving or facilitating administration, e.g. storage management
G06F 3/0658
Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices: controller…