New files:

Modified files:
drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
drivers/net/ethernet/stmicro/stmmac/stmmac.h
drivers/net/ethernet/stmicro/stmmac/stmmac_xdp.c