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net: unify the pcpu_tstats and br_cpu_netstats as one

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They are same, so unify them as one, pcpu_sw_netstats.

Define pcpu_sw_netstat in netdevice.h, remove pcpu_tstats
from if_tunnel and remove br_cpu_netstats from br_private.h

Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li RongQing 2014-01-04 13:57:59 +08:00 committed by David S. Miller
parent 653864d9dd
commit 8f84985fec
16 changed files with 60 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/vxlan.c
View File

@ -1081,7 +1081,7 @@ static void vxlan_rcv(struct vxlan_sock *vs,
struct iphdr *oip = NULL;
struct ipv6hdr *oip6 = NULL;
struct vxlan_dev *vxlan;
struct pcpu_tstats *stats;
struct pcpu_sw_netstats *stats;
union vxlan_addr saddr;
__u32 vni;
int err = 0;
@ -1587,11 +1587,12 @@ EXPORT_SYMBOL_GPL(vxlan_xmit_skb);
static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
struct vxlan_dev *dst_vxlan)
{
struct pcpu_tstats *tx_stats = this_cpu_ptr(src_vxlan->dev->tstats);
struct pcpu_tstats *rx_stats = this_cpu_ptr(dst_vxlan->dev->tstats);
struct pcpu_sw_netstats *tx_stats, *rx_stats;
union vxlan_addr loopback;
union vxlan_addr *remote_ip = &dst_vxlan->default_dst.remote_ip;
tx_stats = this_cpu_ptr(src_vxlan->dev->tstats);
rx_stats = this_cpu_ptr(dst_vxlan->dev->tstats);
skb->pkt_type = PACKET_HOST;
skb->encapsulation = 0;
skb->dev = dst_vxlan->dev;
@ -1897,12 +1898,12 @@ static int vxlan_init(struct net_device *dev)
struct vxlan_sock *vs;
int i;
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *vxlan_stats;
struct pcpu_sw_netstats *vxlan_stats;
vxlan_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&vxlan_stats->syncp);
}

9
include/linux/if_tunnel.h
View File

@ -13,13 +13,4 @@
#define for_each_ip_tunnel_rcu(pos, start) \
for (pos = rcu_dereference(start); pos; pos = rcu_dereference(pos->next))
/* often modified stats are per cpu, other are shared (netdev->stats) */
struct pcpu_tstats {
u64 rx_packets;
u64 rx_bytes;
u64 tx_packets;
u64 tx_bytes;
struct u64_stats_sync syncp;
};
#endif /* _IF_TUNNEL_H_ */

11
include/linux/netdevice.h
View File

@ -1409,7 +1409,7 @@ struct net_device {
union {
void *ml_priv;
struct pcpu_lstats __percpu *lstats; /* loopback stats */
struct pcpu_tstats __percpu *tstats; /* tunnel stats */
struct pcpu_sw_netstats __percpu *tstats;
struct pcpu_dstats __percpu *dstats; /* dummy stats */
struct pcpu_vstats __percpu *vstats; /* veth stats */
};
@ -1685,6 +1685,15 @@ struct packet_offload {
struct list_head list;
};
/* often modified stats are per cpu, other are shared (netdev->stats) */
struct pcpu_sw_netstats {
u64 rx_packets;
u64 rx_bytes;
u64 tx_packets;
u64 tx_bytes;
struct u64_stats_sync syncp;
};
#include <linux/notifier.h>
/* netdevice notifier chain. Please remember to update the rtnetlink

2
include/net/ip6_tunnel.h
View File

@ -79,7 +79,7 @@ static inline void ip6tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
err = ip6_local_out(skb);
if (net_xmit_eval(err) == 0) {
struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats);
struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
u64_stats_update_begin(&tstats->syncp);
tstats->tx_bytes += pkt_len;
tstats->tx_packets++;

4
include/net/ip_tunnels.h
View File

@ -162,10 +162,10 @@ struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb, bool gre_csum,
static inline void iptunnel_xmit_stats(int err,
struct net_device_stats *err_stats,
struct pcpu_tstats __percpu *stats)
struct pcpu_sw_netstats __percpu *stats)
{
if (err > 0) {
struct pcpu_tstats *tstats = this_cpu_ptr(stats);
struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats);
u64_stats_update_begin(&tstats->syncp);
tstats->tx_bytes += err;

10
net/bridge/br_device.c
View File

@ -32,7 +32,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
const unsigned char *dest = skb->data;
struct net_bridge_fdb_entry *dst;
struct net_bridge_mdb_entry *mdst;
struct br_cpu_netstats *brstats = this_cpu_ptr(br->stats);
struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
u16 vid = 0;
rcu_read_lock();
@ -90,12 +90,12 @@ static int br_dev_init(struct net_device *dev)
struct net_bridge *br = netdev_priv(dev);
int i;
br->stats = alloc_percpu(struct br_cpu_netstats);
br->stats = alloc_percpu(struct pcpu_sw_netstats);
if (!br->stats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct br_cpu_netstats *br_dev_stats;
struct pcpu_sw_netstats *br_dev_stats;
br_dev_stats = per_cpu_ptr(br->stats, i);
u64_stats_init(&br_dev_stats->syncp);
}
@ -135,12 +135,12 @@ static struct rtnl_link_stats64 *br_get_stats64(struct net_device *dev,
struct rtnl_link_stats64 *stats)
{
struct net_bridge *br = netdev_priv(dev);
struct br_cpu_netstats tmp, sum = { 0 };
struct pcpu_sw_netstats tmp, sum = { 0 };
unsigned int cpu;
for_each_possible_cpu(cpu) {
unsigned int start;
const struct br_cpu_netstats *bstats
const struct pcpu_sw_netstats *bstats
= per_cpu_ptr(br->stats, cpu);
do {
start = u64_stats_fetch_begin_bh(&bstats->syncp);

2
net/bridge/br_input.c
View File

@ -28,7 +28,7 @@ static int br_pass_frame_up(struct sk_buff *skb)
{
struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;
struct net_bridge *br = netdev_priv(brdev);
struct br_cpu_netstats *brstats = this_cpu_ptr(br->stats);
struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
u64_stats_update_begin(&brstats->syncp);
brstats->rx_packets++;

10
net/bridge/br_private.h
View File

@ -210,21 +210,13 @@ static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *
rtnl_dereference(dev->rx_handler_data) : NULL;
}
struct br_cpu_netstats {
u64 rx_packets;
u64 rx_bytes;
u64 tx_packets;
u64 tx_bytes;
struct u64_stats_sync syncp;
};
struct net_bridge
{
spinlock_t lock;
struct list_head port_list;
struct net_device *dev;
struct br_cpu_netstats __percpu *stats;
struct pcpu_sw_netstats __percpu *stats;
spinlock_t hash_lock;
struct hlist_head hash[BR_HASH_SIZE];
#ifdef CONFIG_BRIDGE_NETFILTER

9
net/ipv4/ip_tunnel.c
View File

@ -132,7 +132,8 @@ struct rtnl_link_stats64 *ip_tunnel_get_stats64(struct net_device *dev,
int i;
for_each_possible_cpu(i) {
const struct pcpu_tstats *tstats = per_cpu_ptr(dev->tstats, i);
const struct pcpu_sw_netstats *tstats =
per_cpu_ptr(dev->tstats, i);
u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
unsigned int start;
@ -460,7 +461,7 @@ static struct ip_tunnel *ip_tunnel_create(struct net *net,
int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
const struct tnl_ptk_info *tpi, bool log_ecn_error)
{
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
const struct iphdr *iph = ip_hdr(skb);
int err;
@ -1049,12 +1050,12 @@ int ip_tunnel_init(struct net_device *dev)
int i, err;
dev->destructor = ip_tunnel_dev_free;
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ipt_stats;
struct pcpu_sw_netstats *ipt_stats;
ipt_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ipt_stats->syncp);
}

2
net/ipv4/ip_vti.c
View File

@ -60,7 +60,7 @@ static int vti_rcv(struct sk_buff *skb)
tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
iph->saddr, iph->daddr, 0);
if (tunnel != NULL) {
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
u32 oldmark = skb->mark;
int ret;

10
net/ipv6/ip6_gre.c
View File

@ -498,7 +498,7 @@ static int ip6gre_rcv(struct sk_buff *skb)
&ipv6h->saddr, &ipv6h->daddr, key,
gre_proto);
if (tunnel) {
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
goto drop;
@ -1265,12 +1265,12 @@ static int ip6gre_tunnel_init(struct net_device *dev)
if (ipv6_addr_any(&tunnel->parms.raddr))
dev->header_ops = &ip6gre_header_ops;
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ip6gre_tunnel_stats;
struct pcpu_sw_netstats *ip6gre_tunnel_stats;
ip6gre_tunnel_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ip6gre_tunnel_stats->syncp);
}
@ -1466,12 +1466,12 @@ static int ip6gre_tap_init(struct net_device *dev)
ip6gre_tnl_link_config(tunnel, 1);
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ip6gre_tap_stats;
struct pcpu_sw_netstats *ip6gre_tap_stats;
ip6gre_tap_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ip6gre_tap_stats->syncp);
}

12
net/ipv6/ip6_tunnel.c
View File

@ -29,7 +29,6 @@
#include <linux/if.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/if_tunnel.h>
#include <linux/net.h>
#include <linux/in6.h>
#include <linux/netdevice.h>
@ -102,11 +101,12 @@ struct ip6_tnl_net {
static struct net_device_stats *ip6_get_stats(struct net_device *dev)
{
struct pcpu_tstats sum = { 0 };
struct pcpu_sw_netstats sum = { 0 };
int i;
for_each_possible_cpu(i) {
const struct pcpu_tstats *tstats = per_cpu_ptr(dev->tstats, i);
const struct pcpu_sw_netstats *tstats =
per_cpu_ptr(dev->tstats, i);
sum.rx_packets += tstats->rx_packets;
sum.rx_bytes += tstats->rx_bytes;
@ -784,7 +784,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
if ((t = ip6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr,
&ipv6h->daddr)) != NULL) {
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
if (t->parms.proto != ipproto && t->parms.proto != 0) {
rcu_read_unlock();
@ -1497,12 +1497,12 @@ ip6_tnl_dev_init_gen(struct net_device *dev)
t->dev = dev;
t->net = dev_net(dev);
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ip6_tnl_stats;
struct pcpu_sw_netstats *ip6_tnl_stats;
ip6_tnl_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ip6_tnl_stats->syncp);
}

10
net/ipv6/ip6_vti.c
View File

@ -24,7 +24,6 @@
#include <linux/if.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/if_tunnel.h>
#include <linux/net.h>
#include <linux/in6.h>
#include <linux/netdevice.h>
@ -77,11 +76,12 @@ struct vti6_net {
static struct net_device_stats *vti6_get_stats(struct net_device *dev)
{
struct pcpu_tstats sum = { 0 };
struct pcpu_sw_netstats sum = { 0 };
int i;
for_each_possible_cpu(i) {
const struct pcpu_tstats *tstats = per_cpu_ptr(dev->tstats, i);
const struct pcpu_sw_netstats *tstats =
per_cpu_ptr(dev->tstats, i);
sum.rx_packets += tstats->rx_packets;
sum.rx_bytes += tstats->rx_bytes;
@ -312,7 +312,7 @@ static int vti6_rcv(struct sk_buff *skb)
if ((t = vti6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr,
&ipv6h->daddr)) != NULL) {
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
if (t->parms.proto != IPPROTO_IPV6 && t->parms.proto != 0) {
rcu_read_unlock();
@ -753,7 +753,7 @@ static inline int vti6_dev_init_gen(struct net_device *dev)
t->dev = dev;
t->net = dev_net(dev);
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
return 0;

10
net/ipv6/sit.c
View File

@ -671,7 +671,7 @@ static int ipip6_rcv(struct sk_buff *skb)
tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
iph->saddr, iph->daddr);
if (tunnel != NULL) {
struct pcpu_tstats *tstats;
struct pcpu_sw_netstats *tstats;
if (tunnel->parms.iph.protocol != IPPROTO_IPV6 &&
tunnel->parms.iph.protocol != 0)
@ -1361,12 +1361,12 @@ static int ipip6_tunnel_init(struct net_device *dev)
memcpy(dev->broadcast, &tunnel->parms.iph.daddr, 4);
ipip6_tunnel_bind_dev(dev);
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ipip6_tunnel_stats;
struct pcpu_sw_netstats *ipip6_tunnel_stats;
ipip6_tunnel_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ipip6_tunnel_stats->syncp);
}
@ -1391,12 +1391,12 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
iph->ihl = 5;
iph->ttl = 64;
dev->tstats = alloc_percpu(struct pcpu_tstats);
dev->tstats = alloc_percpu(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
for_each_possible_cpu(i) {
struct pcpu_tstats *ipip6_fb_stats;
struct pcpu_sw_netstats *ipip6_fb_stats;
ipip6_fb_stats = per_cpu_ptr(dev->tstats, i);
u64_stats_init(&ipip6_fb_stats->syncp);
}

12
net/openvswitch/vport.c
View File

@ -136,14 +136,14 @@ struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops,
vport->ops = ops;
INIT_HLIST_NODE(&vport->dp_hash_node);
vport->percpu_stats = alloc_percpu(struct pcpu_tstats);
vport->percpu_stats = alloc_percpu(struct pcpu_sw_netstats);
if (!vport->percpu_stats) {
kfree(vport);
return ERR_PTR(-ENOMEM);
}
for_each_possible_cpu(i) {
struct pcpu_tstats *vport_stats;
struct pcpu_sw_netstats *vport_stats;
vport_stats = per_cpu_ptr(vport->percpu_stats, i);
u64_stats_init(&vport_stats->syncp);
}
@ -275,8 +275,8 @@ void ovs_vport_get_stats(struct vport *vport, struct ovs_vport_stats *stats)
spin_unlock_bh(&vport->stats_lock);
for_each_possible_cpu(i) {
const struct pcpu_tstats *percpu_stats;
struct pcpu_tstats local_stats;
const struct pcpu_sw_netstats *percpu_stats;
struct pcpu_sw_netstats local_stats;
unsigned int start;
percpu_stats = per_cpu_ptr(vport->percpu_stats, i);
@ -344,7 +344,7 @@ int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb)
void ovs_vport_receive(struct vport *vport, struct sk_buff *skb,
struct ovs_key_ipv4_tunnel *tun_key)
{
struct pcpu_tstats *stats;
struct pcpu_sw_netstats *stats;
stats = this_cpu_ptr(vport->percpu_stats);
u64_stats_update_begin(&stats->syncp);
@ -370,7 +370,7 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
int sent = vport->ops->send(vport, skb);
if (likely(sent > 0)) {
struct pcpu_tstats *stats;
struct pcpu_sw_netstats *stats;
stats = this_cpu_ptr(vport->percpu_stats);

2
net/openvswitch/vport.h
View File

@ -87,7 +87,7 @@ struct vport {
struct hlist_node dp_hash_node;
const struct vport_ops *ops;
struct pcpu_tstats __percpu *percpu_stats;
struct pcpu_sw_netstats __percpu *percpu_stats;
spinlock_t stats_lock;
struct vport_err_stats err_stats;