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net: rx_dropped accounting

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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>
This commit is contained in:
Eric Dumazet
2010-09-20 00:12:11 +00:00
committed by David S. Miller
parent 462fb2af97
commit 8990f468ae
7 changed files with 28 additions and 8 deletions
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4
net/ipv6/ip6mr.c
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@@ -666,7 +666,9 @@ static int pim6_rcv(struct sk_buff *skb)
skb_tunnel_rx(skb, reg_dev);
netif_rx(skb);
if (netif_rx(skb) == NET_RX_DROP)
reg_dev->stats.rx_dropped++;
dev_put(reg_dev);
return 0;
drop: