Methods and systems for providing a virtualized NVMe over fabric service
US11902184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2021 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Oct 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.