diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e4497f8..2081bdb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2102,7 +2102,7 @@
 
 	/* need: 1 descriptor per page * PAGE_SIZE/I40E_MAX_DATA_PER_TXD,
 	 *       + 1 desc for skb_head_len/I40E_MAX_DATA_PER_TXD,
-	 *       + 2 desc gap to keep tail from touching head,
+	 *       + 4 desc gap to avoid the cache line where head is,
 	 *       + 1 desc for context descriptor,
 	 * otherwise try next time
 	 */
@@ -2113,7 +2113,7 @@
 	count += skb_shinfo(skb)->nr_frags;
 #endif
 	count += TXD_USE_COUNT(skb_headlen(skb));
-	if (i40e_maybe_stop_tx(tx_ring, count + 3)) {
+	if (i40e_maybe_stop_tx(tx_ring, count + 4 + 1)) {
 		tx_ring->tx_stats.tx_busy++;
 		return 0;
 	}
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 01bfab7..b1d87c6 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1482,7 +1482,7 @@
 
 	/* need: 1 descriptor per page * PAGE_SIZE/I40E_MAX_DATA_PER_TXD,
 	 *       + 1 desc for skb_head_len/I40E_MAX_DATA_PER_TXD,
-	 *       + 2 desc gap to keep tail from touching head,
+	 *       + 4 desc gap to avoid the cache line where head is,
 	 *       + 1 desc for context descriptor,
 	 * otherwise try next time
 	 */
@@ -1493,7 +1493,7 @@
 	count += skb_shinfo(skb)->nr_frags;
 #endif
 	count += TXD_USE_COUNT(skb_headlen(skb));
-	if (i40e_maybe_stop_tx(tx_ring, count + 3)) {
+	if (i40e_maybe_stop_tx(tx_ring, count + 4 + 1)) {
 		tx_ring->tx_stats.tx_busy++;
 		return 0;
 	}