10gb SR-IOV NIC

Operating Systems & Open Source Virtualization
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1

Hi all.

I’m looking to enable 10gb networking on my host OS, and guest OS (windows 10).

I would like to try and accomplish this with one PCIe slot. Is this wishful thinking or is their a NIC out there that different ports will be in different IOMMU groups.

I have a MSI MEG X399 creation motherboard on TR 2950x. So if SR-IOV is an option on this motherboard I can take that route. Does anyone have suggestions? I would prefer SFP+ connections on the NIC. At least two ports.

Thank you

2

Each virtual function on your NIC gets its own IOMMU group. I’ll have to double check on my server at home, but I think the SFP+ cages on my Intel x520-DA2 show up in their own groups.

I have mine set to create seven VF adapters, which I pass through to various VMs. It works great for Linux guests. Windows doesn’t have the VF driver built in, so you need to also assign a temporary e1000 nic emulated nic to download drivers.

3

Oh awesome! If that’s the case and each port gets it’s own IOMMU group that sounds like a great candidate. Thanks for the tip:)

4

Ok so looks like i have the -DA1 in my x399 box, so only one sfp+ cage. The DA2 is laying on a shelf.

Here’s the relevant groups from my x399 system:

IOMMU Group 15:
        08:00.0 Ethernet controller [0200]: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection [8086:10fb] (rev 01)
IOMMU Group 44:
        08:10.0 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 45:
        08:10.2 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 46:
        08:10.4 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 47:
        08:10.6 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 48:
        08:11.0 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 49:
        08:11.2 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
IOMMU Group 50:
        08:11.4 Ethernet controller [0200]: Intel Corporation 82599 Ethernet Controller Virtual Function [8086:10ed] (rev 01)
5

I can’t find this NIC anywhere…

Closest I’m finding are things like this with a single SFP+ port.

6

The 82599es is the controller chip.

The Intel cards are typically found with Dell branding. There’s also an HP version, nc560 if I recall correctly.

I see lots of -da2 for between 60-80 USD on eBay.