diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
index ae236a264e74..6372ec7c3f31 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
@@ -739,12 +739,24 @@ static int stmmac_test_flowctrl(struct stmmac_priv *priv)
 	u32 rx_cnt = priv->plat->rx_queues_to_use;
 	struct mac_device_info *mac = priv->hw;
 	struct stmmac_test_priv *tpriv;
+	unsigned int rx_fifo_size;
 	unsigned int pkt_count;
 	int i, ret = 0;
 
 	if (!(mac->link.caps & MAC_SYM_PAUSE))
 		return -EOPNOTSUPP;
 
+	rx_fifo_size = priv->plat->rx_fifo_size;
+	if (!rx_fifo_size)
+		rx_fifo_size = priv->dma_cap.rx_fifo_size;
+
+	/* No pause frame is emitted if we don't have at least 4096 bytes per
+	 * queue, except on dwmac100.
+	 */
+	if (priv->plat->core_type != DWMAC_CORE_MAC100 &&
+	    rx_fifo_size / priv->plat->rx_queues_to_use < 4096)
+		return -EOPNOTSUPP;
+
 	tpriv = kzalloc_obj(*tpriv);
 	if (!tpriv)
 		return -ENOMEM;
@@ -758,9 +770,7 @@ static int stmmac_test_flowctrl(struct stmmac_priv *priv)
 	dev_add_pack(&tpriv->pt);
 
 	/* Compute minimum number of packets to make FIFO full */
-	pkt_count = priv->plat->rx_fifo_size;
-	if (!pkt_count)
-		pkt_count = priv->dma_cap.rx_fifo_size;
+	pkt_count = rx_fifo_size;
 	pkt_count /= 1400;
 	pkt_count *= 2;