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authorEric Dumazet <eric.dumazet@gmail.com>2010-09-30 17:06:55 -0400
committerDavid S. Miller <davem@davemloft.net>2010-10-05 17:47:55 -0400
commitcaf586e5f23cebb2a68cbaf288d59dbbf2d74052 (patch)
tree5c0dfcf5a14c55501f9225835c83abddb8d1876e /include/linux/netdevice.h
parenta00eac0c459abecb539fb2a2abd3122dd7ca5d4a (diff)
net: add a core netdev->rx_dropped counter
In various situations, a device provides a packet to our stack and we drop it before it enters protocol stack : - softnet backlog full (accounted in /proc/net/softnet_stat) - bad vlan tag (not accounted) - unknown/unregistered protocol (not accounted) We can handle a per-device counter of such dropped frames at core level, and automatically adds it to the device provided stats (rx_dropped), so that standard tools can be used (ifconfig, ip link, cat /proc/net/dev) This is a generalization of commit 8990f468a (net: rx_dropped accounting), thus reverting it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 92d81edd5808..6abcef67b178 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -884,6 +884,9 @@ struct net_device {
884 int iflink; 884 int iflink;
885 885
886 struct net_device_stats stats; 886 struct net_device_stats stats;
887 atomic_long_t rx_dropped; /* dropped packets by core network
888 * Do not use this in drivers.
889 */
887 890
888#ifdef CONFIG_WIRELESS_EXT 891#ifdef CONFIG_WIRELESS_EXT
889 /* List of functions to handle Wireless Extensions (instead of ioctl). 892 /* List of functions to handle Wireless Extensions (instead of ioctl).