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-rw-r--r--drivers/net/loopback.c8
-rw-r--r--include/linux/netdevice.h3
-rw-r--r--net/8021q/vlan.h2
-rw-r--r--net/8021q/vlan_core.c2
-rw-r--r--net/8021q/vlan_dev.c11
-rw-r--r--net/core/dev.c19
-rw-r--r--net/ipv4/ip_gre.c3
-rw-r--r--net/ipv4/ipip.c3
-rw-r--r--net/ipv6/ip6_tunnel.c3
-rw-r--r--net/ipv6/ip6mr.c3
-rw-r--r--net/ipv6/sit.c3
11 files changed, 26 insertions, 34 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 4b0e30b..2d9663a 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -64,7 +64,6 @@ struct pcpu_lstats {
u64 packets;
u64 bytes;
struct u64_stats_sync syncp;
- unsigned long drops;
};
/*
@@ -90,8 +89,7 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
lb_stats->bytes += len;
lb_stats->packets++;
u64_stats_update_end(&lb_stats->syncp);
- } else
- lb_stats->drops++;
+ }
return NETDEV_TX_OK;
}
@@ -101,7 +99,6 @@ static struct rtnl_link_stats64 *loopback_get_stats64(struct net_device *dev,
{
u64 bytes = 0;
u64 packets = 0;
- u64 drops = 0;
int i;
for_each_possible_cpu(i) {
@@ -115,14 +112,11 @@ static struct rtnl_link_stats64 *loopback_get_stats64(struct net_device *dev,
tbytes = lb_stats->bytes;
tpackets = lb_stats->packets;
} while (u64_stats_fetch_retry(&lb_stats->syncp, start));
- drops += lb_stats->drops;
bytes += tbytes;
packets += tpackets;
}
stats->rx_packets = packets;
stats->tx_packets = packets;
- stats->rx_dropped = drops;
- stats->rx_errors = drops;
stats->rx_bytes = bytes;
stats->tx_bytes = bytes;
return stats;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 92d81ed..6abcef6 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -884,6 +884,9 @@ struct net_device {
int iflink;
struct net_device_stats stats;
+ atomic_long_t rx_dropped; /* dropped packets by core network
+ * Do not use this in drivers.
+ */
#ifdef CONFIG_WIRELESS_EXT
/* List of functions to handle Wireless Extensions (instead of ioctl).
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index b26ce34..8d9503a 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -25,7 +25,6 @@ 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;
@@ -33,7 +32,6 @@ 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_core.c b/net/8021q/vlan_core.c
index b6d55a9..dee727c 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -33,6 +33,7 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
return polling ? netif_receive_skb(skb) : netif_rx(skb);
drop:
+ atomic_long_inc(&skb->dev->rx_dropped);
dev_kfree_skb_any(skb);
return NET_RX_DROP;
}
@@ -123,6 +124,7 @@ vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
return dev_gro_receive(napi, skb);
drop:
+ atomic_long_inc(&skb->dev->rx_dropped);
return GRO_DROP;
}
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index f6fbcc0..f54251e 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -225,16 +225,15 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
}
}
- if (unlikely(netif_rx(skb) == NET_RX_DROP)) {
- if (rx_stats)
- rx_stats->rx_dropped++;
- }
+ netif_rx(skb);
+
rcu_read_unlock();
return NET_RX_SUCCESS;
err_unlock:
rcu_read_unlock();
err_free:
+ atomic_long_inc(&dev->rx_dropped);
kfree_skb(skb);
return NET_RX_DROP;
}
@@ -846,15 +845,13 @@ 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, rx_dropped are ulong, not protected by syncp */
+ /* rx_errors is 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/core/dev.c b/net/core/dev.c
index ce6ad88..7d14955 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1483,8 +1483,9 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
skb_orphan(skb);
nf_reset(skb);
- if (!(dev->flags & IFF_UP) ||
- (skb->len > (dev->mtu + dev->hard_header_len))) {
+ if (unlikely(!(dev->flags & IFF_UP) ||
+ (skb->len > (dev->mtu + dev->hard_header_len)))) {
+ atomic_long_inc(&dev->rx_dropped);
kfree_skb(skb);
return NET_RX_DROP;
}
@@ -2548,6 +2549,7 @@ enqueue:
local_irq_restore(flags);
+ atomic_long_inc(&skb->dev->rx_dropped);
kfree_skb(skb);
return NET_RX_DROP;
}
@@ -2995,6 +2997,7 @@ ncls:
if (pt_prev) {
ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
} else {
+ atomic_long_inc(&skb->dev->rx_dropped);
kfree_skb(skb);
/* Jamal, now you will not able to escape explaining
* me how you were going to use this. :-)
@@ -5429,14 +5432,14 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
if (ops->ndo_get_stats64) {
memset(storage, 0, sizeof(*storage));
- return ops->ndo_get_stats64(dev, storage);
- }
- if (ops->ndo_get_stats) {
+ ops->ndo_get_stats64(dev, storage);
+ } else if (ops->ndo_get_stats) {
netdev_stats_to_stats64(storage, ops->ndo_get_stats(dev));
- return storage;
+ } else {
+ netdev_stats_to_stats64(storage, &dev->stats);
+ dev_txq_stats_fold(dev, storage);
}
- netdev_stats_to_stats64(storage, &dev->stats);
- dev_txq_stats_fold(dev, storage);
+ storage->rx_dropped += atomic_long_read(&dev->rx_dropped);
return storage;
}
EXPORT_SYMBOL(dev_get_stats);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index fbe2c47..9d421f4 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 6ad46c2..e9b816e 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;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 8be3c45..c2c0f89 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 2640c9b..6f32ffc 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 d770178..367a6cc 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;
generated by cgit v1.1 at 2024-11-13 05:04:48 +0000