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:
Feb. 05, 2013
Filed:
Jun. 28, 2012
Alan F. Benner, Poughkeepsie, NY (US);
Michael A. Ko, San Jose, CA (US);
Gregory F. Pfister, Austin, TX (US);
Renato J. Recio, Austin, TX (US);
Jacobo A. Vargas, Cedar Park, TX (US);
Alan F. Benner, Poughkeepsie, NY (US);
Michael A. Ko, San Jose, CA (US);
Gregory F. Pfister, Austin, TX (US);
Renato J. Recio, Austin, TX (US);
Jacobo A. Vargas, Cedar Park, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for providing a memory region/memory window (MR/MW) access notification on a system area network are provided. Whenever a previously allocated MR/MW is accessed, such as via a remote direct memory access (RDMA) read/write operation, a notification of the access is generated and written to a queue data structure associated with the MR/MW. In one illustrative embodiment, this queue data structure may be a MR/MW event queue (EQ) data structure that is created and used for all consumer processes and all MR/MWs. In other illustrative embodiments, the EQ is associated with a protection domain. In yet another illustrative embodiment, an event record may be posted to an asynchronous event handler in response to the accessing of the MR/MW. In another illustrative embodiment, a previously posted queue element may be used to generate a completion queue element in response to the accessing of the MR/MW.