37  * Update the needed ring page slots for the first SKB queued.
45 	unsigned int needed = 0;  in xenvif_update_needed_slots()  local
48 		needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE);  in xenvif_update_needed_slots()
50 			needed++;  in xenvif_update_needed_slots()
52 			needed++;  in xenvif_update_needed_slots()
55 	WRITE_ONCE(queue->rx_slots_needed, needed);  in xenvif_update_needed_slots()
61 	unsigned int needed;  in xenvif_rx_ring_slots_available()  local
63 	needed = READ_ONCE(queue->rx_slots_needed);  in xenvif_rx_ring_slots_available()
64 	if (!needed)  in xenvif_rx_ring_slots_available()
71 		if (prod - cons >= needed)  in xenvif_rx_ring_slots_available()
522 	unsigned int needed = READ_ONCE(queue->rx_slots_needed);  in xenvif_rx_queue_stalled()  local
525 		xenvif_rx_queue_slots(queue) < needed &&  in xenvif_rx_queue_stalled()
532 	unsigned int needed = READ_ONCE(queue->rx_slots_needed);  in xenvif_rx_queue_ready()  local
534 	return queue->stalled && xenvif_rx_queue_slots(queue) >= needed;  in xenvif_rx_queue_ready()