The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10007545 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 26, 2018

Filed:

Mar. 15, 2016
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Charles S. Graham, Rochester, MN (US);

Rama K. Hazari, Hyderabad, IN;

Sakethan R. Kotta, Hyderabad, IN;

Kumaraswamy Sripathy, Hyderabad, IN;

Nuthula Venkatesh, Telangana, IN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/36 (2006.01); G06F 9/455 (2018.01); G06F 13/28 (2006.01); G06F 13/16 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 13/1673 (2013.01); G06F 13/28 (2013.01); G06F 2009/45579 (2013.01); G06F 2009/45583 (2013.01);
Abstract

A method, system and computer program product are provided for implementing dynamic altering of a Single Root Input/Output Virtualization (SRIOV) virtual function (VF) resources including direct memory access (DMA) windows without bringing down the VF in a virtualized system. A request to alter VF resources is received, such as a dynamic request based on usage statistics or change in need of the user. Pending DMA requests are completed for the VF resources to be altered. Responsive to completing the DMA requests, new buffers are allocated for the resized DMA windows without bringing down the VF in a virtualized system.


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