--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -4700,7 +4700,7 @@ static int qeth_qdio_establish(struct qe
 	init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
 	init_data.output_sbal_state_array = card->qdio.out_bufstates;
 	init_data.scan_threshold =
-		(card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32;
+		(card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32;
 
 	if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
 		QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {