I just upgraded a host with a MT27710 Family [ConnectX-4 Lx] adapter from Linux 4.19 to 5.10, and now dmesg is filling up with:
bond1: (slave enp179s0f0np0): An illegal loopback occurred on slave
Check the configuration to verify that all adapters are connected to 802.3ad compliant switch ports
These messages do not occur on Linux 4.19, switch seems correctly configured and connection appears to work. So is this just a driver bug in the 5.10 kernel?
We recommend to upgrade the f/w of the adapter to the latest available. You can download the latest f/w through the following link → Firmware for ConnectX®-4 Lx EN