net: net: add a core netdev->tx_dropped counter
Dropping packets in __dev_queue_xmit() when transmit queue
is stopped (NIC TX ring buffer full or BQL limit reached) currently
outputs a syslog message.
It would be better to get a precise count of such events available in
netdevice stats so that monitoring tools can have a clue.
This extends the work done in caf586e5f23ce
("net: add a core netdev->rx_dropped counter")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4b6d12c..159c7e7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1311,9 +1311,10 @@
int iflink;
struct net_device_stats stats;
- atomic_long_t rx_dropped; /* dropped packets by core network
- * Do not use this in drivers.
- */
+
+ /* dropped packets by core network, Do not use this in drivers */
+ atomic_long_t rx_dropped;
+ atomic_long_t tx_dropped;
#ifdef CONFIG_WIRELESS_EXT
/* List of functions to handle Wireless Extensions (instead of ioctl).