A_XGM_INT_CAUSE
t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, F_XGM_INT);
cause = (t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset)
t3_write_reg(adap, A_XGM_INT_CAUSE + mac->offset, cause);
t3_write_reg(adapter, A_XGM_INT_CAUSE + pi->mac.offset, 0xffffffff);
cause = t3_read_reg(sc, A_XGM_INT_CAUSE + mac->offset);
t3_write_reg(sc, A_XGM_INT_CAUSE + mac->offset, reset);