XLMAC_CTRL
ecore_wr_nw_port(p_hwfn, p_ptt, XLMAC_CTRL,
ecore_wr_nw_port(p_hwfn, p_ptt, XLMAC_CTRL, 0x3 | (loopback << 2),
ecore_wr_nw_port(p_hwfn, p_ptt, XLMAC_CTRL, 0x1003 | (loopback << 2),