SR-IOV blacklist VF on host (but use interface anyway)

[Afox]

Hello,

referring to this tutorial: https://forum.proxmox.com/threads/enabling-sr-iov-for-intel-nic-x550-t2-on-proxmox-6.56677/

When I blacklist the ixgbevf on the host, can I still use the same physical port for creating a bridge (vmbrX) on it?

Example: I create 2 VF and pass them to VMs. At the same time I create vmbr1 to be utilized by other VMs.

Regards,

Afox

 

[Stefan_R]

Theoretically, the physical function should stay active, since it doesn't use the ixgbevg virtual function driver that is blacklisted. So yes, a vmbr can be attached to that.

But to be sure, I would just test it out. Don't enable the systemd service mentioned in the tutorial you linked, and just execute the commands by hand, then check if your physical interface is still available.