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:
Jan. 17, 2023
Filed:
Aug. 04, 2021
International Business Machines Corporation, Armonk, NY (US);
Derek E. Williams, Round Rock, TX (US);
Alexander Michael Taft, Austin, TX (US);
Guy L. Guthrie, Round Rock, TX (US);
Bernard C. Drerup, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A data processing system includes a plurality of snoopers, a processing unit including master, and a system fabric communicatively coupling the master and the plurality of snoopers. The master sets a retry operating mode for an interconnect operation in one of alternative first and second operating modes. The first operating mode is associated with a first type of snooper, and the second operating mode is associated with a different second type of snooper. The master issues a memory access request of the interconnect operation on the system fabric of the data processing system. Based on receipt of a combined response representing a systemwide coherence response to the request, the master delays an interval having a duration dependent on the retry operating mode and thereafter reissues the memory access request on the system fabric.