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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-10-01 01:06:55 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-10-06 01:47:55 +0400 |
| commit | caf586e5f23cebb2a68cbaf288d59dbbf2d74052 (patch) | |
| tree | 5c0dfcf5a14c55501f9225835c83abddb8d1876e /net/ipv4 | |
| parent | a00eac0c459abecb539fb2a2abd3122dd7ca5d4a (diff) | |
| download | linux-caf586e5f23cebb2a68cbaf288d59dbbf2d74052.tar.xz | |
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 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_gre.c | 3 | ||||
| -rw-r--r-- | net/ipv4/ipip.c | 3 |
2 files changed, 2 insertions, 4 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index fbe2c473a06a..9d421f4cf3ef 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -679,8 +679,7 @@ static int ipgre_rcv(struct sk_buff *skb) skb_reset_network_header(skb); ipgre_ecn_decapsulate(iph, skb); - if (netif_rx(skb) == NET_RX_DROP) - tunnel->dev->stats.rx_dropped++; + netif_rx(skb); rcu_read_unlock(); return 0; diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 6ad46c28ede2..e9b816e6cd73 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -414,8 +414,7 @@ static int ipip_rcv(struct sk_buff *skb) ipip_ecn_decapsulate(iph, skb); - if (netif_rx(skb) == NET_RX_DROP) - tunnel->dev->stats.rx_dropped++; + netif_rx(skb); rcu_read_unlock(); return 0; |