HOST DEVICE, COMPUTING SYSTEM INCLUDING THE SAME AND A PLURALITY OF DEVICES, INTERFACE LINK LAYER CONFIGURATION METHOD THEREOF

• US 20160274821A1
• Filed: 01/19/2016
• Published: 09/22/2016
• Est. Priority Date: 03/20/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Hyuntae
• Granted Patent: US 10,042,783 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 13/102 where the programme performs an interfacing function, e.g. device driver G06F13/105 takes precedence; scheduling within device drivers G06F9/52; contention policies within device drivers G06F9/4881
• CPC Class Codes: G06F 3/0658 Controller construction arrangements
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A computing system includes a first storage device, a second storage device, and a host device configured to communicate with the first storage device and the second storage device according to a communication protocol, wherein the host device includes an interconnection layer to assign physical ports for connection between the host device and the first storage device and the second storage device, in order to simultaneously process transactions for the first storage device and the second storage device.

Claims

1. A computing system comprising:

a first storage device;

a second storage device; and

a host device configured to communicate with the first storage device and the second storage device according to a communication protocol, the host device includes an interconnection layer, the interconnection layer configured to,

assign at least one physical port for connecting the first storage device and the second storage device to the host device, the at least one physical port configured to process transactions for the first storage device and the second storage device.

2. The computing system of claim 1, wherein the first storage device and the second storage device are homogeneous storage devices.

3. The computing system of claim 1, wherein the first storage device and the second storage device are heterogeneous storage devices.

4. The computing system of claim 1, wherein the interconnection layer configured to assign a priority to the first storage device and the second storage device using a traffic class.

5. The computing system of claim 1, wherein the interconnection layer includes a traffic class and a data link layer, the data link layer configured to, generate a frame by adding physical channel information to the traffic class.

6. The computing system of claim 5, wherein the interconnection layer further includes a physical adapter layer, the physical adapter layer configured to,

receive the frame, and

generate a physical adapter level transaction unit by adding physical port information.

7. The computing system of claim 6, wherein the interconnection layer further includes a plurality of physical layers, the plurality of physical layers configured to,

receive the physical adapter level transaction unit, and

generate symbols transmittable to the first storage device and the second storage device.

8. The computing system of claim 6, wherein the communication protocol is a universal flash storage (UFS) protocol.

9. The computing system of claim 7, wherein the plurality of physical layers includes first physical layer and a second physical layer, the first physical layer configured to form two lanes connected to the first storage device, and the second physical layer configured to form two lanes connected to the second storage device.

10. The computing system of claim 5, wherein the host device further includes a transport layer, the transport layer configured to,

receive the transactions from an application layer, and

generate a packet input using the at least one physical port to the first storage device and the second storage device.

11. The computing system of claim 10, wherein the host device further includes a network layer to route a port generated at the transport layer.

12. The computing system of claim 1, wherein

the first storage device is an embedded UFS, and

the second storage device is an embedded UFS card.

13. The computing system of claim 12, wherein the host device processes quality of service (QoS) of the embedded UFS first storage device and the embedded UFS second storage device ahead of the QoS of the first storage device UFS card and the second storage device UFS card.

14. A host device, the host device comprising:

a host controller interface configured to construct or deconstruct a transmitted or received frame into a packet; and

a universal flash storage (UFS) interface, the UFS interface includes,

a UFS protocol, and

an interconnection layer, the interconnection layer includes a link layer, a first physical layers, and a second physical layers, the interconnection layer configured to transmit or receive a frame to or from a first storage device and a second storage, wherein the link layer configured to,

assign a physical port to which the first storage device and the second storage device are connected, assign a traffic class to the packet generated from the host controller interface, classify the first storage device and the second storage device into the first physical layer and the second physical layer, and

assign a priority to the first storage device and the second storage device based on the traffic class, and wherein

the first physical layers configured to receive a first frame from the link layer to generate symbols transmitted or received to or from the first storage device, the first physical layers assigned a first port number, and

the second physical layers configured to receive a second frame from the link layer to generate symbols transmitted or received to or from the first storage device, the second physical layers assigned a second port number, the second port number is different from the first port number

15. The host device of claim 14, wherein at least one of the first storage device and the second device include at least one vertical NAND (VNAND) flash memory device.

16. A computing system comprising:

a plurality of storage devices, each of the plurality of storage devices includes a first physical layer and a first link layer; and

a host device, the host device includes an interconnection layer, a plurality of second physical layers and a second link layer, the interconnection layer configured to control communication with the plurality of storage device and the host device, wherein

the first physical layer of each of the plurality of storage devices is connected to at least one of the plurality of second physical layers of the host device via at least one port.

17. The computing system of claim 16, wherein the second link layer of the host device configured to,

divide or classify the plurality of second physical layers of the host device using physical port information,

divide or classify the plurality of storage devices connected to the at least one of the plurality of second physical layers of the host device, and

assign a processing priority to each of the plurality of storage devices according to a traffic class of the plurality of storage devices.

18. The computing system of claim 17, wherein the second link layer of the host device further configured to,

classify the plurality of storage devices based on physical port information and a service priority of each of the plurality of storage devices.

19. The computing system of claim 16, wherein the host device further includes,

a transport layer, the transport layer configured to,

receive a frame from the second link layer of the host device, and

generate a packet based on the frame received;

and

an application layer, the application layer configured to,

determine whether the packet generated is outputted from an embedded device based on a traffic class included in the packet, and

process a transaction if the packet is outputted from the embedded device.

20. The computing system of claim 16, wherein the plurality of storage devices include at least one of a homogeneous storage device and a heterogeneous storage device.