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:
Dec. 21, 2021
Filed:
Sep. 29, 2017
Intel Corporation, Santa Clara, CA (US);
Ishwar Agarwal, Hillsboro, OR (US);
Stephen R. Van Doren, Portland, OR (US);
Ramacharan Sundararaman, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
There is disclosed in an example a peripheral component interconnect express (PCIe) controller to provide coherent memory mapping between an accelerator memory and a host memory address space. The PCIe controller may include extensions to provide a coherent accelerator interconnect (CAI) to provide bias-based coherency tracking between the accelerator memory and the host memory address space. The extensions may include: a mapping engine to provide opcode mapping between PCIe instructions and on-chip system fabric (OSF) instructions for the CAI, a tunneling engine to provide scalable memory interconnect (SMI) tunneling of host memory operations to the accelerator memory via the CAI, host-bias-to-device-bias (HBDB) flip engine to enable the accelerator to flush a host cache line, and a QoS engine comprising a plurality of virtual channels.