NETBK_COMMON_EOI
old = atomic_fetch_or(NETBK_COMMON_EOI, &queue->eoi_pending);
atomic_andnot(NETBK_COMMON_EOI, &queue->eoi_pending);
else if (atomic_fetch_andnot(NETBK_TX_EOI | NETBK_COMMON_EOI,
(NETBK_TX_EOI | NETBK_COMMON_EOI))
if (atomic_fetch_andnot(NETBK_RX_EOI | NETBK_COMMON_EOI,
(NETBK_RX_EOI | NETBK_COMMON_EOI))