| commit | caf586e5f23cebb2a68cbaf288d59dbbf2d74052 | |
| author | Eric Dumazet <eric.dumazet@gmail.com> | |
| Thu, 30 Sep 2010 21:06:55 +0000 (30 21:06 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Tue, 5 Oct 2010 21:47:55 +0000 (5 14:47 -0700) | ||
| tree | 5c0dfcf5a14c55501f9225835c83abddb8d1876e | treesnapshot (tar.gz zip) |
| parent | a00eac0c459abecb539fb2a2abd3122dd7ca5d4a | commitdiff |
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>
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>