INTR_TXQ_COAL
if ((status & (INTR_TXQ_COAL | INTR_TXQ_COAL_TO)) != 0)
status |= INTR_TXQ_COAL | INTR_TXQ_COAL_TO | INTR_TXQ_COMP;
INTR_TXQ_COAL | INTR_RXQ_DESC_EMPTY)