IP Library › Granted Patent US 9,864,719
Granted Patent B2
US 9,864,719 · App. 14/645,657 · Granted Jan 9, 2018

Systems and methods for power optimization at input/output nodes of an information handling system

Inventors: Cyril Jose (Austin, TX); Timothy M. Lambert (Austin, TX); Jonathan Adonis Kwahk (Austin, TX)
Assignee: Dell Products L.P.
G06F13/4221G06F1/3296G06F13/4022Y02B60/1228Y02B60/1235
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Quick Facts
Patent No.
US 9,864,719
App. No.
14/645,657
Filed
Mar 12, 2015
Granted
Jan 9, 2018
Kind
B2
Art Unit
2184
USPC
710/65
Abstract

In accordance with methods of the present disclosure, a system may include a switch and a management controller communicatively coupled to the switch. The switch may be configured to route input/output communications between a processor and a device. The management controller may be configured to, based on a measured bandwidth of communications of a communication link between the switch and the device, dynamically control at least one of a link width and a per-lane link speed of the communication link.

Claims (37)

1. A system comprising:

a switch configured to route input/output communications between a processor and a device; and

a management controller communicatively coupled to the switch configured to:

measure a measured bandwidth of a communication link between the switch and the device by determining an actual number of datagrams communicated over the communication link during a particular interval of time, wherein the particular interval of time is user-configurable and is an integer multiple of a polling interval of the communication link; and

based on the measured bandwidth, dynamically control at least one of a link width and a per-lane link speed of the communication link.

2. The system of claim 1 , the management controller further configured to dynamically control at least one of the link width and a per-lane link speed of the communication link based on the measured bandwidth and at least one of a minimum bandwidth and a maximum bandwidth for the communication link.

3. The system of claim 2 , wherein at least one of the minimum bandwidth and the maximum bandwidth are user-configurable.

4. The system of claim 1 , wherein the management controller is further configured to communicatively couple to a sideband interface of the device via a sideband interface physically separate from that of communication links between the switch and the device.

5. The system of claim 4 , wherein the management controller is further configured to, via the sideband interface, cause components of deactivated lanes of the device to sleep in a power saving mode.

6. The system of claim 1 , wherein the management controller is communicatively coupled to the switch via a sideband interface physically separate from that of any input/output communication channel between the processor and the device.

7. The system of claim 6 , wherein the management controller is further configured to, via the sideband interface:

monitor the measured bandwidth of the communication link; and

display information regarding the measured bandwidth of the communication link to a user.

8. A method comprising, in a system comprising a switch for routing communications between a processor and a device:

measuring bandwidth of input/output communications of a communication link between the switch and the device by determining an actual number of datagrams communicated over the communication link during a particular interval of time, wherein the particular interval of time is user-configurable and is an integer multiple of a polling interval of the communication link; and

based on the measured bandwidth, dynamically controlling at least one of a link width and a per-lane link speed of the communication link.

9. The method of claim 8 , further comprising dynamically controlling at least one of the link width and a per-lane link speed of the communication link based on the measured bandwidth and at least one of a minimum bandwidth and a maximum bandwidth for the communication link.

10. The method of claim 9 , wherein at least one of the minimum bandwidth and the maximum bandwidth are user-configurable.

11. The method of claim 8 , further comprising communicating to a sideband interface of the device via a sideband interface physically separate from that of communication links between the switch and the device.

12. The method of claim 11 , further comprising, via the sideband interface, causing components of deactivated lanes of the device to sleep in a power saving mode.

13. The method of claim 8 , further comprising measuring bandwidth and dynamically controlling the switch via a sideband interface of the switch physically separate from that of any input/output communication channel between the processor and the device.

14. The method of claim 13 , further comprising, via the sideband interface:

monitoring the measured bandwidth of the communication link; and

displaying information regarding the measured bandwidth of the communication link to a user.

15. An article of manufacture comprising:

a non-transitory computer readable medium; and

computer-executable instructions carried on the computer readable medium, the instructions readable by a controller, the instructions, when read and executed, for causing the controller to, in a system comprising a switch for routing communications between a processor and a device:

measure bandwidth of input/output communications of a communication link between the switch and the device by determining an actual number of datagrams communicated over the communication link during a particular interval of time, wherein the particular interval of time is user-configurable and is an integer multiple of a polling interval of the communication link; and

based on the measured bandwidth, dynamically control at least one of a link width and a per-lane link speed of the communication link.

16. The article of claim 15 , the instructions for further causing the controller to dynamically control at least one of the link width and a per-lane link speed of the communication link based on the measured bandwidth and at least one of a minimum bandwidth and a maximum bandwidth for the communication link.

17. The article of claim 16 , wherein at least one of the minimum bandwidth and the maximum bandwidth are user-configurable.

18. The article of claim 15 , the instructions for further causing the controller to communicate to a sideband interface of the device via a sideband interface physically separate from that of communication links between the switch and the device.

19. The article of claim 18 , the instructions for further causing the controller to, via the sideband interface, cause components of deactivated lanes of the device to sleep in a power saving mode.

20. The article of claim 15 , the instructions for further causing the controller to measure bandwidth and dynamically control the switch via a sideband interface of the switch physically separate from that of any input/output communication channel between the processor and the device.

21. The article of claim 20 , the instructions for further causing the controller to, via the sideband interface:

monitor the measured bandwidth of the communication link; and

display information regarding the measured bandwidth of the communication link to a user.

Assignments (15)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (045455/0001) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061753/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (040136/0001) Recorded Apr 26, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061324/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL, L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058216/0001 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 040134/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 040136/0001 →
RELEASE OF REEL 035860 FRAME 0797 (TL) Recorded Sep 14, 2016
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040028/0551 →
RELEASE OF REEL 035860 FRAME 0878 (NOTE) Recorded Sep 14, 2016
From: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040027/0158 →
RELEASE OF REEL 035858 FRAME 0612 (ABL) Recorded Sep 13, 2016
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
Reel/Frame 040017/0067 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (ABL) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 035858/0612 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 035860/0797 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (NOTES) Recorded Jun 9, 2015
From: DELL PRODUCTS L.P.; DELL SOFTWARE INC.; COMPELLENT TECHNOLOGIES, INC; SECUREWORKS, INC.; STATSOFT, INC.
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 035860/0878 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2015
From: JOSE, CYRIL; LAMBERT, TIMOTHY M.; KWAHK, JONATHAN ADONIS
To: DELL PRODUCTS L.P.
Reel/Frame 035148/0736 →
Continuity (1)
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