SR-IOV VF Drivers for Broadcom NetXtreme E-Series Dual-port 25Gb SFP28 Eth OCP 3.0 Adapter

[DoJu]

Hi All,

I am running Windows Server 2022 on the Host Proliant DL380 Gen11 and 2 x Virtual Machines

I have configured SR-IOV as per the steps below.

However, when I run in each VM
Get-NetadapterSriovVf 
Nothing is returned (I think it should return 'true")

Step 1
SR-IOV enabled in the BIOS (including under the Broadcom NetXtreme E-Series, device configuration menu)

Step 2
On the Host, using powershell, I created the SR-IOV enabled external vswitch and set the ioweights:
New-VMSwitch -Name "SR-IOV Virtual Switch" -NetAdapterName "PCIe Slot 15 2 Port 1" -EnableIov $true
Set-VMNetworkAdapter  DC-1 -ioweight 1
Set-VMNetworkAdapter FP-1 -ioweight 1
The last two commands 'injected' the Broadcom VF in each VM

Step 3 Good:
Get-VMNetworkAdapter -VMName fp-1 | fl Name, IovWeight, IovQueuePairsRequested, IovQueuePairsAssigned, IovUsage
Name : Network Adapter
IovWeight : 1
IovQueuePairsRequested : 1
IovQueuePairsAssigned : 1
IovUsage : 1

Step 4: Good
On the Host, I note:
Get-VMSwitch -Name "SR-IOV Virtual Switch" | fl
IovQueuePairCount : 69
IovQueuePairsInUse : 14
IovVirtualFunctionCount : 8
IovVirtualFunctionsInUse : 2

Step 5: Each VM I note an additional NIC:
Broadcom NetXtreme-E Virtual Function for Hyper-v
Manufacturer: Broadcom Corporation
Location: Virtual PCI Bus Slot 2 Serial 1
Driver provider: Microsoft
Driver date: 3/9/2020
Driver version: 216.0.143.6
Digital Signer: Microsoft Windows

Step 6: However, the Host is using:
Broadcom Inc
30/08/2024
231.0.158.0

Step 7: On the host, I note SwitchName is empty!
Get-NetAdapterSriov
Name : PCIe Slot 15 2 Port 1
InterfaceDescription : Broadcom NetXtreme E-Series Dual-port 25Gb SFP28 Ethernet OCP 3.0 Adapter
Enabled : True
SriovSupport : Supported
SwitchName :
NumVFs : 8

Step 7: Hyper-V Manager reports status:
OK, (SR-IOV active)

Requests:
Where do I find the broadcom VF drivers for the VMs to update to 231.0.158.0?
Have I missed any steps?!

Thanks!

Steve

[Greeshma21]

Hi @DoJu 

To update to 231.0.158.0, the below component contains the driver for Broadcom NetXtreme-E devices for Microsoft Windows Server 2022 and refer to the installation instructions.
https://support.hpe.com/connect/s/softwaredetails?language=en_US&collectionId=MTX-b8bfd68496a643cd&tab=Installation+Instructions 

Regards,
Greeshma

[DoJu]

Thanks Greeshma,

On the Host:
Broadcom Inc is at 231.0.158.0

In each VM:
Broadcom NetXtreme-E Virtual Function for Hyper-v is also at 231.0.158.0

However, when I run in each VM:
Get-NetAdapterSriovVf

Nothing is returned, I will keep troubleshooting.

[Greeshma21]

Hi @DoJu 

Please refer to this document for Configuring SR-IOV on Windows.

Regards,
Greeshma

[DoJu]

Thanks @Greeshma21 

The Hyper-V Host is reporting both VMs returning OK SR-IOV (Active)

However, when I run the following in each VM, nothing is returned.
Get-NetadapterSriovVf

On the Hyper-V Host

Get-VMSwitch -Name "SR-IOV VSwitch" | fl *iov*
IovEnabled : True
IovSupport : True
IovSupportReasons :
IovQueuePairCount : 69
IovQueuePairsInUse : 14
IovVirtualFunctionCount : 8
IovVirtualFunctionsInUse : 2

Drivers on the Host/VM are using Broadcom Inc
30/08/2024
231.0.158.0

On the Host, Get-NetAdapterSriov

Name : PCIe Slot 15 2 Port 1
InterfaceDescription : Broadcom NetXtreme E-Series Dual-port 25Gb SFP28 Ethernet OCP 3.0 Adapter
Enabled : True
SriovSupport : Supported
SwitchName :
NumVFs : 8

I note the SwitchName is blank

[Greeshma21]

Hi @DoJu 

Please check if the host and VM adapters are configured with the name. If not showing, the command Rename-NetAdapter may help you in this.

Please refer to this document for more detail on Get-NetAdapterSriovVf

Regards,
Greeshma

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