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.:
Date of Patent:
Jun. 09, 2009
Filed:
Apr. 02, 2007
Michael Norman Day, Round Rock, TX (US);
Harm Peter Hofstee, Austin, TX (US);
Charles Ray Johns, Austin, TX (US);
Peichum Peter Liu, Austin, TX (US);
Thuong Quang Truong, Austin, TX (US);
Takeshi Yamazaki, Austin, TX (US);
Michael Norman Day, Round Rock, TX (US);
Harm Peter Hofstee, Austin, TX (US);
Charles Ray Johns, Austin, TX (US);
Peichum Peter Liu, Austin, TX (US);
Thuong Quang Truong, Austin, TX (US);
Takeshi Yamazaki, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides for a system comprising a DMA queue configured to receive a DMA command comprising a tag, wherein the tag belongs to one of a plurality of tag groups. A counter couples to the DMA queue and is configured to increment a tag group count of the tag group to which the tag belongs upon receipt of the DMA command by the DMA queue and to decrement the tag group count upon execution of the DMA command. A tag group count status register couples to the counter and is configured to store the tag group count for each of the plurality of tag groups. And the tag group count status register is further configured to receive a request for a tag group status and to respond to the request for the tag group status.