On FreeBSD 11.1 the SoC 80G network interface can not be used (this seems to be resolved on 12) Kernel / Basesystem: FreeBSD thunderx 11.1-STABLE FreeBSD 11.1-STABLE #0 r323168: Wed Sep 6 00:46:23 UTC 2017 root@releng2.nyi.freebsd.org:/usr/obj/arm64.aarch64/usr/src/sys/GENERIC arm64 /etc/iovctl.conf: PF { device : "vnicpf0"; num_vfs : 1; } running iovctl -C -f /etc/iovctl.conf (no output but prited to the console): vnicpf0: Failed to add VF 0 re-running it erros with: iovctl: Failed to configure SR-IOV: Device busy
^Triage: FreeBSD 11 is long out of support.