diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h index 8d9503ad01daa65729212de33f579b32aeffc1dc..b26ce343072c65a6a1776e1b42d35a0373f40fd6 100644 --- a/net/8021q/vlan.h +++ b/net/8021q/vlan.h @@ -25,6 +25,7 @@ struct vlan_priority_tci_mapping { * @rx_multicast: number of received multicast packets * @syncp: synchronization point for 64bit counters * @rx_errors: number of errors + * @rx_dropped: number of dropped packets */ struct vlan_rx_stats { u64 rx_packets; @@ -32,6 +33,7 @@ struct vlan_rx_stats { u64 rx_multicast; struct u64_stats_sync syncp; unsigned long rx_errors; + unsigned long rx_dropped; }; /** diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index 3bccdd12a2642a06e1c5078b5c4065419a57428a..94a1feddeb4961482e26cc4b23ce3911de35d65a 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -225,7 +225,10 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev, } } - netif_rx(skb); + if (unlikely(netif_rx(skb) == NET_RX_DROP)) { + if (rx_stats) + rx_stats->rx_dropped++; + } rcu_read_unlock(); return NET_RX_SUCCESS; @@ -843,13 +846,15 @@ static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, st accum.rx_packets += rxpackets; accum.rx_bytes += rxbytes; accum.rx_multicast += rxmulticast; - /* rx_errors is an ulong, not protected by syncp */ + /* rx_errors, rx_dropped are ulong, not protected by syncp */ accum.rx_errors += p->rx_errors; + accum.rx_dropped += p->rx_dropped; } stats->rx_packets = accum.rx_packets; stats->rx_bytes = accum.rx_bytes; stats->rx_errors = accum.rx_errors; stats->multicast = accum.rx_multicast; + stats->rx_dropped = accum.rx_dropped; } return stats; } diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index fc20e687e933ba2557ab36bd1a3c57d8a9374d7f..714b6a80361df2cb616f2682cae04c20ad463b68 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -647,9 +647,11 @@ static int ipgre_rcv(struct sk_buff *skb) skb_reset_network_header(skb); ipgre_ecn_decapsulate(iph, skb); - netif_rx(skb); + if (netif_rx(skb) == NET_RX_DROP) + stats->rx_dropped++; + rcu_read_unlock(); - return(0); + return 0; } icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0); diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 8de8888dc95a62e4d567f85a6673d2c6aa9aa253..babd2527810694f28507da734ea3f3db7e665d7d 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -377,7 +377,10 @@ static int ipip_rcv(struct sk_buff *skb) skb_tunnel_rx(skb, tunnel->dev); ipip_ecn_decapsulate(iph, skb); - netif_rx(skb); + + if (netif_rx(skb) == NET_RX_DROP) + tunnel->dev->stats.rx_dropped++; + rcu_read_unlock(); return 0; } diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 9289cecac4de291ba94487c04f3cdbb03313729b..f6d9f683543eaee96284139f3f2c8ca0936f7fb7 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -725,7 +725,10 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol, skb_tunnel_rx(skb, t->dev); dscp_ecn_decapsulate(t, ipv6h, skb); - netif_rx(skb); + + if (netif_rx(skb) == NET_RX_DROP) + t->dev->stats.rx_dropped++; + rcu_read_unlock(); return 0; } diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 66078dad7fe8c353bd4de83115dc4eee73ba978f..2640c9be589dd62805dab83ed910ba4cbad694d6 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -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: diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 6822481ff766ea4105b46f4c29889cf78e6ee9a3..8a039982223060f1a2e24dade7f03372ad448c49 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; }