NIC offloading and virtualization?

[Dunuin]

Hi,

I got a Intel i350T4 and i350-T2 that should support stuff like TCP Offloading so the CPU don't need to do all of that.
How is that working in virtualized evironments?

Is it possible to use that for VMs with a virtual virtio NIC bridged to the i350-T2? I think this must be enabled first on the proxmox host?

And I would like to passthrough 3 ports of the i350-T4 to one VM and 1 port to another VM. Is it possible to use that inside VMs if PCI functions are splitted or possible at all?
In the GUI of my OPNsense-VM I saw options to enable/disable this.

 

[aaron]

Not sure if it works if the NIC is passed through via PCI passthrough. If you don't do PCI passthrough of the NICs you definitely want to disable HW offloading.

 

[floh8]

Is there a change meanwhile.? Is it possible to use some NIC offloading Features in the VM without loosing the Live Migration possibility?