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:
Aug. 28, 2012
Filed:
Apr. 25, 2008
Kishore Kumar Muppirala, Bangalore Karnataka, IN;
Narayanan Ananthakrishnan Nellayi, Bangalore Karnataka, IN;
Senthil Kumar Ramakrishnan, Cupertino, CA (US);
Bhanu Gollapudi Venkata Prakash, Cupertino, CA (US);
Kishore Kumar Muppirala, Bangalore Karnataka, IN;
Narayanan Ananthakrishnan Nellayi, Bangalore Karnataka, IN;
Senthil Kumar Ramakrishnan, Cupertino, CA (US);
Bhanu Gollapudi Venkata Prakash, Cupertino, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The method, apparatus and system of an I/O forwarding technique for multi-interrupt capable I/O devices are disclosed. In one embodiment, a method of transferring an I/O request in a cache-coherent non-uniform memory access (ccNUMA) computer system including multiple cells (e.g., each cell may include multiple processors) that are connected via a system interconnect, includes receiving an I/O request from one of the multiple processors associated with one of the multiple cells in the ccNUMA computer system, associating a processor, corresponding to a multi-interrupt capable I/O interface that is servicing the I/O request, located in the one of the multiple cells as a lead processor, and executing an I/O initiation path and a completion path associated with the received I/O request on the lead processor upon associating the lead processor corresponding to the multi-interrupt capable I/O interface.