rxtx_empty_cond == 0

One realtek 4 port RTL8125 NIC (rev 05). Used in a HP Prodesk 600 G4 (intel i5 8500), with an M2 PCIE Mediatek MT7916 6GHz AP module. The only specific thign i can say about this NIC is that it appears to use Pericom Semiconductor PI7C9X2G608GP PCIE bridge. I think I have seen some others that...