Shim layer used with a virtual machine virtual NIC and a hardware platform physical NIC
US10164911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | May 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/3045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An emulator module integrated with a hypervisor executes on a host computer having a physical network interface card (pNIC). The hypervisor hosts a virtual machine having a virtual NIC (vNIC). The pNIC has pNIC receive pointers to point to receive packets loaded into a receive buffer by the pNIC. The vNIC has vNIC receive pointers for retrieval of the receive packets from the receive buffer. The emulator module accesses a pNIC receive pointer in the pNIC that points to the receive packet loaded into the receive buffer by the pNIC, and maps a vNIC receive pointer to the pNIC receive pointer accessed by the emulator module, to enable the vNIC to retrieve the receive packet from the receive buffer using the vNIC receive pointer. The emulator module notifies the vNIC to retrieve the receive packet from the receive buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.