Standalone UCSC-C240-M4SX: SR-IOV support for Hyper-V

[boorya0851]

We have 3 standalone C240-M4SX rack servers, running on Windows Server 2016 with Hyper-V installed.

I am unable to get SR-IOV working on VIC1227.

We have latest firmware installed (from huu 4.0.1b) and latest VIC drivers (4.0.0.3 dated 04.01.2017)

SR-IOV is reported as not supported:

Get-NetAdapterSriov

Name                 : NIC2
InterfaceDescription : Cisco VIC Ethernet Interface #2
Enabled              : True
SriovSupport         : NotSupported
SwitchName           : Default Switch Name
NumVFs               : 128

Name                 : NIC1
InterfaceDescription : Cisco VIC Ethernet Interface
Enabled              : True
SriovSupport         : NotSupported
SwitchName           : Default Switch Name
NumVFs               : 128

All relevant BIOS settings are enabled, Windows reports that host itself is capable of SR-IOV without any warnings:

Get-VMHost |fl iov*
IovSupport        : True
IovSupportReasons :

Is SR-IOV supported for standalone hosts, without VM-FEX and UCS management?

Are there any settings that I might be missed?

[mojafri · Accepted solution]

You need VM-FEX. In the UCS implementation of SR-IOV with VIC cards, PF corresponds to a static vNIC that is SR-IOV enabled, while a VF corresponds a dynamic VNIC that is SR-IOV enabled. 

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/sw/vm_fex/hyperv/gui/config_guide/2-1/b_GUI_Hyper-V_VM-FEX_UCSM_Configuration_Guide/b_GUI_Hyper-V_VM-FEX_UCSM_Configuration_Guide_chapter_01.html#concept_66F6FC0EBC4E4697A328E0B249B55C7F

You might want to use Intel supported cards on UCSC-C240-M4S standalone with SR-IOV capability - https://www.intel.com/content/dam/www/public/us/en/documents/technology-briefs/ethernet-sr-iov-microsoft-windows-brief.pdf

Please rate if you find it helpful. 

Regards,

MJ