QLCNIC_NIU_XG_PAUSE_CTL
val = QLCRD32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, &err);
val = QLCRD32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, &err);
QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, val);
QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);