To ensure that a virtual machine and a physical NIC can exchange data, you must associate a virtual machine with one or more virtual functions.

After you enable the virtual functions on the host, each of them becomes available as a PCI device.

Launch the vSphere Client and log in to a vCenter Server system.

Verify that the configuration of your environment supports SR-IOV. See SR-IOV Support.

Verify that the virtual functions exist on the host.

Verify that the passthrough networking device for the virtual function is active on the host.

1

Select a virtual machine from the inventory panel of the vSphere Client.

2

Power off the virtual machine.

3

From the Inventory menu, select Virtual Machine > Edit Settings.

4

On the Resources tab, select Memory.

5

Select Unlimited.

6

On the Hardware tab, click Add.

7

Select PCI Device and click Next.

8

From the drop-down menu select the virtual function.

9

Click Finish.

10

Power on the virtual machine.

Adding a virtual function as a PCI device to a virtual machine sets memory reservation to the memory size of the virtual machine.