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authorEric Dumazet <eric.dumazet@gmail.com>2010-09-20 00:12:11 +0000
committerDavid S. Miller <davem@davemloft.net>2010-09-20 10:08:58 -0700
commit8990f468ae9010ab0af4be8f51bf7ab833a67202 (patch)
treee84ad358ed67da6011b1e20f3d8039d1f9f07e4a /net/ipv6/sit.c
parent462fb2af9788a82a534f8184abfde31574e1cfa0 (diff)
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net: rx_dropped accounting
Under load, netif_rx() can drop incoming packets but administrators dont have a chance to spot which device needs some tuning (RPS activation for example) This patch adds rx_dropped accounting in vlans and tunnels. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/sit.c')
-rw-r--r--net/ipv6/sit.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 6822481ff76..8a039982223 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -564,7 +564,10 @@ static int ipip6_rcv(struct sk_buff *skb)
skb_tunnel_rx(skb, tunnel->dev);
ipip6_ecn_decapsulate(iph, skb);
- netif_rx(skb);
+
+ if (netif_rx(skb) == NET_RX_DROP)
+ tunnel->dev->stats.rx_dropped++;
+
rcu_read_unlock();
return 0;
}