14–Enabling SR-IOV
Enabling SR-IOV
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To verify that SR-IOV is operational:
1.
Start the VM.
2.
In Hyper-V Manager, select the adapter and select the VM in the
Virtual
Machines
list.
3.
Select the
Networking
tab at the bottom of the window and view the adapter
status.
SR-IOV and Storage
Storage (FCoE or iSCSI) can be enabled on an SR-IOV-enabled adapter.
However, if storage is used on an NPAR-enabled PF, the quantity of VFs for that
PF is set to 0; therefore, SR-IOV is disabled on that PF, and the other PFs on that
port can support SR-IOV VF connections.
This limitation applies only when the adapter is configured in NPAR mode. It is not
relevant when the adapter is configured in single-function mode.
SR-IOV and Jumbo Packets
If SR-IOV is enabled on a VF on the adapter, ensure that the same jumbo packet
settings is configured on both the VF and the Microsoft synthetic adapter. You can
configure these values using Windows Device Manager, Advanced properties.
If there is a mismatch in the values, the SR-IOV function will show as
Degraded
in
Hyper-V > Networking Status.