SHADOW VNICS FOR THE CONTROL AND OBSERVABILITY OF IO VIRTUAL FUNCTIONS

摘要

A method for controlling a network interface controller (NIC). The method includes receiving, by a host operating system (OS) executing on a computer system, an instruction to map the NIC virtual function (VF) to a first virtual machine executing on the computer system. The method further includes allocating, according to the NIC VF, first NIC resources on a physical NIC operatively connected to the computer system, mapping the NIC VF to the first virtual machine, creating, in the host OS, a shadow virtual NIC for the first NIC resources allocated to the NIC VF, assigning the shadow virtual NIC to the first virtual machine, receiving, by the physical NIC, a first packet targeting the first virtual machine, and sending the first packet directly to the first virtual machine.

主权项

1. A non-transitory computer readable medium comprising instructions that, when executed by a processor, cause a computer system to perform a method, the method comprising:
receiving, by a host operating system (OS) executing on the computer system, an instruction to map a network interface card (NIC) virtual function (VF) to a first virtual machine executing on the computer system; allocating, according to the NIC VF, first NIC resources on a physical NIC operatively connected to the computer system; mapping the NIC VF to the first virtual machine; creating, in the host OS, a shadow virtual NIC for the first NIC resources allocated to the NIC VF; assigning the shadow virtual NIC to the first virtual machine; receiving, by the physical NIC, a first packet targeting the first virtual machine; sending the first packet directly to the first virtual machine.