net: Add netdev interfaces for recording sends/comp

Add interfaces for drivers to call for recording number of packets and
bytes at send time and transmit completion.  Also, added a function to
"reset" a queue.  These will be used by Byte Queue Limits.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d19f93265cac14300f33a884bf80e50a387aed7a..9b24cc7a54d14b92da2baa900e6ed10a2c366681 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1859,6 +1859,34 @@ static inline int netif_xmit_frozen_or_stopped(const struct netdev_queue *dev_qu
        return dev_queue->state & QUEUE_STATE_ANY_XOFF_OR_FROZEN;
 }
 
+static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue,
+                                       unsigned int bytes)
+{
+}
+
+static inline void netdev_sent_queue(struct net_device *dev, unsigned int bytes)
+{
+       netdev_tx_sent_queue(netdev_get_tx_queue(dev, 0), bytes);
+}
+
+static inline void netdev_tx_completed_queue(struct netdev_queue *dev_queue,
+                                            unsigned pkts, unsigned bytes)
+{
+}
+
+static inline void netdev_completed_queue(struct net_device *dev,
+                                         unsigned pkts, unsigned bytes)
+{
+       netdev_tx_completed_queue(netdev_get_tx_queue(dev, 0), pkts, bytes);
+}
+
+static inline void netdev_tx_reset_queue(struct netdev_queue *q)
+{
+}
+
+static inline void netdev_reset_queue(struct net_device *dev_queue)
+{
+       netdev_tx_reset_queue(netdev_get_tx_queue(dev_queue, 0));
 }
 
 /**