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authorEric Dumazet <eric.dumazet@gmail.com>2010-09-30 21:06:55 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-05 14:47:55 -0700
commitcaf586e5f23cebb2a68cbaf288d59dbbf2d74052 (patch)
tree5c0dfcf5a14c55501f9225835c83abddb8d1876e /net/ipv6
parenta00eac0c459abecb539fb2a2abd3122dd7ca5d4a (diff)
downloadlinux-caf586e5f23cebb2a68cbaf288d59dbbf2d74052.tar.bz2
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/ipv6')
-rw-r--r--net/ipv6/ip6_tunnel.c3
-rw-r--r--net/ipv6/ip6mr.c3
-rw-r--r--net/ipv6/sit.c3
3 files changed, 3 insertions, 6 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 8be3c452af90..c2c0f89397b1 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -768,8 +768,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
dscp_ecn_decapsulate(t, ipv6h, skb);
- if (netif_rx(skb) == NET_RX_DROP)
- t->dev->stats.rx_dropped++;
+ netif_rx(skb);
rcu_read_unlock();
return 0;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 2640c9be589d..6f32ffce7022 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -666,8 +666,7 @@ static int pim6_rcv(struct sk_buff *skb)
skb_tunnel_rx(skb, reg_dev);
- if (netif_rx(skb) == NET_RX_DROP)
- reg_dev->stats.rx_dropped++;
+ netif_rx(skb);
dev_put(reg_dev);
return 0;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index d7701782b639..367a6cc584cc 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -600,8 +600,7 @@ static int ipip6_rcv(struct sk_buff *skb)
ipip6_ecn_decapsulate(iph, skb);
- if (netif_rx(skb) == NET_RX_DROP)
- tunnel->dev->stats.rx_dropped++;
+ netif_rx(skb);
rcu_read_unlock();
return 0;