[PATCH] e1000: add byte queue limits

@@ -2016,6 +2016,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
 		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
 	}
 
+	netdev_reset_queue(adapter->netdev);
 	size = sizeof(struct e1000_buffer) * tx_ring->count;
 	memset(tx_ring->buffer_info, 0, size);
 

@@ -3265,6 +3266,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 	                     nr_frags, mss);
 
 	if (count) {
+		netdev_sent_queue(netdev, skb->len);
 		skb_tx_timestamp(skb);
 
 		e1000_tx_queue(adapter, tx_ring, tx_flags, count);

@@ -3852,6 +3854,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 	unsigned int i, eop;
 	unsigned int count = 0;
 	unsigned int total_tx_bytes=0, total_tx_packets=0;
+	unsigned int bytes_compl = 0, pkts_compl = 0;
 
 	i = tx_ring->next_to_clean;
 	eop = tx_ring->buffer_info[i].next_to_watch;

@@ -3869,6 +3872,11 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 			if (cleaned) {
 				total_tx_packets += buffer_info->segs;
 				total_tx_bytes += buffer_info->bytecount;
+				if (buffer_info->skb) {
+					bytes_compl += buffer_info->skb->len;
+					pkts_compl++;
+				}
+
 			}
 			e1000_unmap_and_free_tx_resource(adapter, buffer_info);
 			tx_desc->upper.data = 0;

@@ -3882,6 +3890,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 
 	tx_ring->next_to_clean = i;
 
+	netdev_completed_queue(netdev, pkts_compl, bytes_compl);
+
 #define TX_WAKE_THRESHOLD 32
 	if (unlikely(count && netif_carrier_ok(netdev) &&
 		     E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {