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:
Feb. 14, 2017

Filed:

Nov. 13, 2014
Applicant:

Cavium, Inc., San Jose, CA (US);

Inventors:

Robert A. Sanzone, Hudson, MA (US);

Wilson P. Snyder, II, Holliston, MA (US);

Richard E. Kessler, Northborough, MA (US);

Assignee:

Cavium, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 12/08 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 12/084 (2013.01); G06F 12/0811 (2013.01); G06F 12/0842 (2013.01); G06F 2212/1008 (2013.01); G06F 2212/602 (2013.01); G06F 2212/6022 (2013.01); G06F 2212/62 (2013.01);
Abstract

An input/output bridge controls access to a memory by a number of devices. The bridge enforces ordering of access requests according to a register storing an order configuration, which can be programmed to accommodate a given application. When suspending an access request as a result of enforcing an order configuration, the bridge may also cause a prefetch at the memory for the suspended access request. Subsequently, following the completion of a previous access request meeting the order configuration, the suspended access request is released. Due to the prefetch, an access operation can be completed with minimal delay.


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