Pensando Systems/AMD Assigned Patent
Providing virtualized NVMe over fabric service
By Francis Pelletier | March 20, 2024 at 2:00 pmPensando Systems Inc., Milpitas, CA, (acquired by AMD), has been assigned a patent (11902184) developed by Gai, Silvano, Bend, OR, Galles, Michael Brian, Los Altos, CA, Mazzola, Mario, San Jose, CA, Cafiero, Luca, Palo Alto, CA, Doddapaneni, Krishna, Cupertino, CA, and Kamisetty, Sarat, Fremont, CA, for “methods and systems for providing a virtualized NVMe over fabric service.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: “PCIe devices installed in host computers communicating with service nodes can provide virtualized NVMe over fabric services. A workload on the host computer can submit an SQE on a NVMe SQ. The PCI device can read the SQE to obtain a command identifier, an OpCode, and a namespace identifier (NSID). The SQE can be used to produce a LTP packet that includes the opcode, the NSID, and a request identifier. The LTP packet can be sent to the service node, which may access a SAN in accordance with the opcode and NSID, and can respond to the LTP with a second LTP that includes the request identifier and a status indicator. The PCI device can use the status indicator and the request identifier to produce a CQE that is placed on a NVMe CQ associated with the SQ.”
The patent application was filed on 2021-05-20 (17/326284).






