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.

Date of Patent:
Aug. 28, 2018

Filed:

Oct. 03, 2016
Applicant:

Vmware, Inc., Palo Alto, CA (US);

Inventors:

Bhavesh Davda, Fremont, CA (US);

Benjamin C. Serebrin, Sunnyvale, CA (US);

Assignee:

VMware, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0862 (2016.01); G06F 13/28 (2006.01); G06F 12/1081 (2016.01); G06F 12/1027 (2016.01); G06F 12/14 (2006.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 13/28 (2013.01); G06F 12/0862 (2013.01); G06F 12/1027 (2013.01); G06F 12/1081 (2013.01); G06F 12/145 (2013.01); G06F 9/45533 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/151 (2013.01); G06F 2212/602 (2013.01); G06F 2212/654 (2013.01);
Abstract

Latency reduction for direct memory access operations involving address translation is disclosed. Example methods disclosed herein to perform direct memory access (DMA) operations include initializing a ring of descriptors, the descriptors to index respective buffers for storing received data in a first memory. Such example methods also include causing prefetching of a first address translation associated with a second descriptor in the ring of descriptors to be performed after a first DMA operation is performed to store first received data in a first buffer indexed by a first descriptor in the ring of descriptors and before second received data to be stored in the first memory is received, the first address translation being associated with a second DMA operation for storing the second received data in the first memory.


Find Patent Forward Citations

Loading…