About a year ago driver support for Maxlinear GPY115 NIC was merged into kernel v5.15-rc1. I hoped this driver would work on a new system I'm working on (Onlogic HX310). I installed Ubuntu Server 22.04 LTS but I can't seem to get them to work (eg. get an IP-address and access internet). Do I need to install or enable something to make them functional or are they simply not yet supported? Any help would be appreciated.

Linux bootup output:

During network configuration the following warning pops-up:

UBSAN: shift-out-of-bounds in 

/build/linux-WLUive/linux-5.15.0/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:224:12

Shift exponent 40 is too large for 32-bit type 'unsigned int'

Then I get the following error:

Maxlinear Ethernet GPY115B stmmac-3:01: gpy_config_aneg failed -110

Config information

Result of grep MAXLINEAR_GPHY /boot/config-5.15.0-40-generic:

CONFIG_MAXLINEAR_GPHY=m

The mxl-gpy.ko module is present in:

/usr/lib/modules/5.15.0-generic/kernel/drivers/net/phy/mxl-gpy.ko

I have also executed: sudo modprobe mxl-gpy, but no difference

chili555: dmesg doesn't return anything about mxl, the previously mentioned error does come up with phy as argument.