* [PATCH net-next v3 01/10] net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
@ 2020-11-07 20:49 ` Heiner Kallweit
2020-11-07 20:49 ` [PATCH net-next v3 02/10] net: dsa: use net core stats64 handling Heiner Kallweit
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:49 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
It's a frequent pattern to use netdev->stats for the less frequently
accessed counters and per-cpu counters for the frequently accessed
counters (rx/tx bytes/packets). Add a default ndo_get_stats64()
implementation for this use case.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
include/linux/netdevice.h | 1 +
net/core/dev.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a53ed2d1e..7ce648a56 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4527,6 +4527,7 @@ void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64,
const struct net_device_stats *netdev_stats);
void dev_fetch_sw_netstats(struct rtnl_link_stats64 *s,
const struct pcpu_sw_netstats __percpu *netstats);
+void dev_get_tstats64(struct net_device *dev, struct rtnl_link_stats64 *s);
extern int netdev_max_backlog;
extern int netdev_tstamp_prequeue;
diff --git a/net/core/dev.c b/net/core/dev.c
index bd6100da6..60d325bda 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -10366,6 +10366,21 @@ void dev_fetch_sw_netstats(struct rtnl_link_stats64 *s,
}
EXPORT_SYMBOL_GPL(dev_fetch_sw_netstats);
+/**
+ * dev_get_tstats64 - ndo_get_stats64 implementation
+ * @dev: device to get statistics from
+ * @s: place to store stats
+ *
+ * Populate @s from dev->stats and dev->tstats. Can be used as
+ * ndo_get_stats64() callback.
+ */
+void dev_get_tstats64(struct net_device *dev, struct rtnl_link_stats64 *s)
+{
+ netdev_stats_to_stats64(s, &dev->stats);
+ dev_fetch_sw_netstats(s, dev->tstats);
+}
+EXPORT_SYMBOL_GPL(dev_get_tstats64);
+
struct netdev_queue *dev_ingress_queue_create(struct net_device *dev)
{
struct netdev_queue *queue = dev_ingress_queue(dev);
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 02/10] net: dsa: use net core stats64 handling
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
2020-11-07 20:49 ` [PATCH net-next v3 01/10] net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation Heiner Kallweit
@ 2020-11-07 20:49 ` Heiner Kallweit
2020-11-07 20:50 ` [PATCH net-next v3 03/10] tun: switch to net core provided statistics counters Heiner Kallweit
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:49 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Use netdev->tstats instead of a member of dsa_slave_priv for storing
a pointer to the per-cpu counters. This allows us to use core
functionality for statistics handling.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
net/dsa/dsa.c | 7 +------
net/dsa/dsa_priv.h | 2 --
net/dsa/slave.c | 29 +++++++----------------------
3 files changed, 8 insertions(+), 30 deletions(-)
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 2131bf2b3..a1b1dc8a4 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -201,7 +201,6 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
{
struct dsa_port *cpu_dp = dev->dsa_ptr;
struct sk_buff *nskb = NULL;
- struct pcpu_sw_netstats *s;
struct dsa_slave_priv *p;
if (unlikely(!cpu_dp)) {
@@ -234,11 +233,7 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
skb = nskb;
}
- s = this_cpu_ptr(p->stats64);
- u64_stats_update_begin(&s->syncp);
- s->rx_packets++;
- s->rx_bytes += skb->len;
- u64_stats_update_end(&s->syncp);
+ dev_sw_netstats_rx_add(skb->dev, skb->len);
if (dsa_skb_defer_rx_timestamp(p, skb))
return 0;
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 12998bf04..7c96aae90 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -78,8 +78,6 @@ struct dsa_slave_priv {
struct sk_buff * (*xmit)(struct sk_buff *skb,
struct net_device *dev);
- struct pcpu_sw_netstats __percpu *stats64;
-
struct gro_cells gcells;
/* DSA port data, such as switch, port index, etc. */
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 59c80052e..ff2266d2b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -575,14 +575,9 @@ static int dsa_realloc_skb(struct sk_buff *skb, struct net_device *dev)
static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct pcpu_sw_netstats *s;
struct sk_buff *nskb;
- s = this_cpu_ptr(p->stats64);
- u64_stats_update_begin(&s->syncp);
- s->tx_packets++;
- s->tx_bytes += skb->len;
- u64_stats_update_end(&s->syncp);
+ dev_sw_netstats_tx_add(dev, 1, skb->len);
DSA_SKB_CB(skb)->clone = NULL;
@@ -714,7 +709,6 @@ static void dsa_slave_get_ethtool_stats(struct net_device *dev,
uint64_t *data)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
- struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = dp->ds;
struct pcpu_sw_netstats *s;
unsigned int start;
@@ -723,7 +717,7 @@ static void dsa_slave_get_ethtool_stats(struct net_device *dev,
for_each_possible_cpu(i) {
u64 tx_packets, tx_bytes, rx_packets, rx_bytes;
- s = per_cpu_ptr(p->stats64, i);
+ s = per_cpu_ptr(dev->tstats, i);
do {
start = u64_stats_fetch_begin_irq(&s->syncp);
tx_packets = s->tx_packets;
@@ -1252,15 +1246,6 @@ static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type,
return ds->ops->port_setup_tc(ds, dp->index, type, type_data);
}
-static void dsa_slave_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *stats)
-{
- struct dsa_slave_priv *p = netdev_priv(dev);
-
- netdev_stats_to_stats64(stats, &dev->stats);
- dev_fetch_sw_netstats(stats, p->stats64);
-}
-
static int dsa_slave_get_rxnfc(struct net_device *dev,
struct ethtool_rxnfc *nfc, u32 *rule_locs)
{
@@ -1636,7 +1621,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
#endif
.ndo_get_phys_port_name = dsa_slave_get_phys_port_name,
.ndo_setup_tc = dsa_slave_setup_tc,
- .ndo_get_stats64 = dsa_slave_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_port_parent_id = dsa_slave_get_port_parent_id,
.ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid,
@@ -1846,8 +1831,8 @@ int dsa_slave_create(struct dsa_port *port)
slave_dev->vlan_features = master->vlan_features;
p = netdev_priv(slave_dev);
- p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!p->stats64) {
+ slave_dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!slave_dev->tstats) {
free_netdev(slave_dev);
return -ENOMEM;
}
@@ -1909,7 +1894,7 @@ int dsa_slave_create(struct dsa_port *port)
out_gcells:
gro_cells_destroy(&p->gcells);
out_free:
- free_percpu(p->stats64);
+ free_percpu(slave_dev->tstats);
free_netdev(slave_dev);
port->slave = NULL;
return ret;
@@ -1931,7 +1916,7 @@ void dsa_slave_destroy(struct net_device *slave_dev)
dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER);
phylink_destroy(dp->pl);
gro_cells_destroy(&p->gcells);
- free_percpu(p->stats64);
+ free_percpu(slave_dev->tstats);
free_netdev(slave_dev);
}
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 03/10] tun: switch to net core provided statistics counters
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
2020-11-07 20:49 ` [PATCH net-next v3 01/10] net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation Heiner Kallweit
2020-11-07 20:49 ` [PATCH net-next v3 02/10] net: dsa: use net core stats64 handling Heiner Kallweit
@ 2020-11-07 20:50 ` Heiner Kallweit
2020-11-07 20:51 ` [PATCH net-next v3 04/10] ip6_tunnel: use ip_tunnel_get_stats64 as ndo_get_stats64 callback Heiner Kallweit
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:50 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Switch tun to the standard statistics pattern:
- use netdev->stats for the less frequently accessed counters
- use netdev->tstats for the frequently accessed per-cpu counters
v3:
- add atomic_long_t member rx_frame_errors for making counter updates
atomic
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/net/tun.c | 121 +++++++++++++---------------------------------
1 file changed, 34 insertions(+), 87 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index be69d2720..3d45d5617 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -107,17 +107,6 @@ struct tap_filter {
#define TUN_FLOW_EXPIRE (3 * HZ)
-struct tun_pcpu_stats {
- u64_stats_t rx_packets;
- u64_stats_t rx_bytes;
- u64_stats_t tx_packets;
- u64_stats_t tx_bytes;
- struct u64_stats_sync syncp;
- u32 rx_dropped;
- u32 tx_dropped;
- u32 rx_frame_errors;
-};
-
/* A tun_file connects an open character device to a tuntap netdevice. It
* also contains all socket related structures (except sock_fprog and tap_filter)
* to serve as one transmit queue for tuntap device. The sock_fprog and
@@ -207,7 +196,7 @@ struct tun_struct {
void *security;
u32 flow_count;
u32 rx_batched;
- struct tun_pcpu_stats __percpu *pcpu_stats;
+ atomic_long_t rx_frame_errors;
struct bpf_prog __rcu *xdp_prog;
struct tun_prog __rcu *steering_prog;
struct tun_prog __rcu *filter_prog;
@@ -1066,7 +1055,7 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
return NETDEV_TX_OK;
drop:
- this_cpu_inc(tun->pcpu_stats->tx_dropped);
+ atomic_long_inc(&dev->tx_dropped);
skb_tx_error(skb);
kfree_skb(skb);
rcu_read_unlock();
@@ -1103,37 +1092,12 @@ static void tun_set_headroom(struct net_device *dev, int new_hr)
static void
tun_net_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
- u32 rx_dropped = 0, tx_dropped = 0, rx_frame_errors = 0;
struct tun_struct *tun = netdev_priv(dev);
- struct tun_pcpu_stats *p;
- int i;
-
- for_each_possible_cpu(i) {
- u64 rxpackets, rxbytes, txpackets, txbytes;
- unsigned int start;
- p = per_cpu_ptr(tun->pcpu_stats, i);
- do {
- start = u64_stats_fetch_begin(&p->syncp);
- rxpackets = u64_stats_read(&p->rx_packets);
- rxbytes = u64_stats_read(&p->rx_bytes);
- txpackets = u64_stats_read(&p->tx_packets);
- txbytes = u64_stats_read(&p->tx_bytes);
- } while (u64_stats_fetch_retry(&p->syncp, start));
+ dev_get_tstats64(dev, stats);
- stats->rx_packets += rxpackets;
- stats->rx_bytes += rxbytes;
- stats->tx_packets += txpackets;
- stats->tx_bytes += txbytes;
-
- /* u32 counters */
- rx_dropped += p->rx_dropped;
- rx_frame_errors += p->rx_frame_errors;
- tx_dropped += p->tx_dropped;
- }
- stats->rx_dropped = rx_dropped;
- stats->rx_frame_errors = rx_frame_errors;
- stats->tx_dropped = tx_dropped;
+ stats->rx_frame_errors +=
+ (unsigned long)atomic_long_read(&tun->rx_frame_errors);
}
static int tun_xdp_set(struct net_device *dev, struct bpf_prog *prog,
@@ -1247,7 +1211,7 @@ static int tun_xdp_xmit(struct net_device *dev, int n,
void *frame = tun_xdp_to_ptr(xdp);
if (__ptr_ring_produce(&tfile->tx_ring, frame)) {
- this_cpu_inc(tun->pcpu_stats->tx_dropped);
+ atomic_long_inc(&dev->tx_dropped);
xdp_return_frame_rx_napi(xdp);
drops++;
}
@@ -1283,7 +1247,7 @@ static const struct net_device_ops tap_netdev_ops = {
.ndo_select_queue = tun_select_queue,
.ndo_features_check = passthru_features_check,
.ndo_set_rx_headroom = tun_set_headroom,
- .ndo_get_stats64 = tun_net_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_bpf = tun_xdp,
.ndo_xdp_xmit = tun_xdp_xmit,
.ndo_change_carrier = tun_net_change_carrier,
@@ -1577,7 +1541,7 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog,
trace_xdp_exception(tun->dev, xdp_prog, act);
fallthrough;
case XDP_DROP:
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
break;
}
@@ -1683,7 +1647,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
size_t total_len = iov_iter_count(from);
size_t len = total_len, align = tun->align, linear;
struct virtio_net_hdr gso = { 0 };
- struct tun_pcpu_stats *stats;
int good_linear;
int copylen;
bool zerocopy = false;
@@ -1752,7 +1715,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
*/
skb = tun_build_skb(tun, tfile, from, &gso, len, &skb_xdp);
if (IS_ERR(skb)) {
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
return PTR_ERR(skb);
}
if (!skb)
@@ -1781,7 +1744,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
if (IS_ERR(skb)) {
if (PTR_ERR(skb) != -EAGAIN)
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
if (frags)
mutex_unlock(&tfile->napi_mutex);
return PTR_ERR(skb);
@@ -1795,7 +1758,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
if (err) {
err = -EFAULT;
drop:
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
kfree_skb(skb);
if (frags) {
tfile->napi.skb = NULL;
@@ -1807,7 +1770,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
}
if (virtio_net_hdr_to_skb(skb, &gso, tun_is_little_endian(tun))) {
- this_cpu_inc(tun->pcpu_stats->rx_frame_errors);
+ atomic_long_inc(&tun->rx_frame_errors);
kfree_skb(skb);
if (frags) {
tfile->napi.skb = NULL;
@@ -1830,7 +1793,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
pi.proto = htons(ETH_P_IPV6);
break;
default:
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
kfree_skb(skb);
return -EINVAL;
}
@@ -1910,7 +1873,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
skb_headlen(skb));
if (unlikely(headlen > skb_headlen(skb))) {
- this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ atomic_long_inc(&tun->dev->rx_dropped);
napi_free_frags(&tfile->napi);
rcu_read_unlock();
mutex_unlock(&tfile->napi_mutex);
@@ -1942,12 +1905,9 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
}
rcu_read_unlock();
- stats = get_cpu_ptr(tun->pcpu_stats);
- u64_stats_update_begin(&stats->syncp);
- u64_stats_inc(&stats->rx_packets);
- u64_stats_add(&stats->rx_bytes, len);
- u64_stats_update_end(&stats->syncp);
- put_cpu_ptr(stats);
+ preempt_disable();
+ dev_sw_netstats_rx_add(tun->dev, len);
+ preempt_enable();
if (rxhash)
tun_flow_update(tun, rxhash, tfile);
@@ -1979,7 +1939,6 @@ static ssize_t tun_put_user_xdp(struct tun_struct *tun,
{
int vnet_hdr_sz = 0;
size_t size = xdp_frame->len;
- struct tun_pcpu_stats *stats;
size_t ret;
if (tun->flags & IFF_VNET_HDR) {
@@ -1996,12 +1955,9 @@ static ssize_t tun_put_user_xdp(struct tun_struct *tun,
ret = copy_to_iter(xdp_frame->data, size, iter) + vnet_hdr_sz;
- stats = get_cpu_ptr(tun->pcpu_stats);
- u64_stats_update_begin(&stats->syncp);
- u64_stats_inc(&stats->tx_packets);
- u64_stats_add(&stats->tx_bytes, ret);
- u64_stats_update_end(&stats->syncp);
- put_cpu_ptr(tun->pcpu_stats);
+ preempt_disable();
+ dev_sw_netstats_tx_add(tun->dev, 1, ret);
+ preempt_enable();
return ret;
}
@@ -2013,7 +1969,6 @@ static ssize_t tun_put_user(struct tun_struct *tun,
struct iov_iter *iter)
{
struct tun_pi pi = { 0, skb->protocol };
- struct tun_pcpu_stats *stats;
ssize_t total;
int vlan_offset = 0;
int vlan_hlen = 0;
@@ -2091,12 +2046,9 @@ static ssize_t tun_put_user(struct tun_struct *tun,
done:
/* caller is in process context, */
- stats = get_cpu_ptr(tun->pcpu_stats);
- u64_stats_update_begin(&stats->syncp);
- u64_stats_inc(&stats->tx_packets);
- u64_stats_add(&stats->tx_bytes, skb->len + vlan_hlen);
- u64_stats_update_end(&stats->syncp);
- put_cpu_ptr(tun->pcpu_stats);
+ preempt_disable();
+ dev_sw_netstats_tx_add(tun->dev, 1, skb->len + vlan_hlen);
+ preempt_enable();
return total;
}
@@ -2235,11 +2187,11 @@ static void tun_free_netdev(struct net_device *dev)
BUG_ON(!(list_empty(&tun->disabled)));
- free_percpu(tun->pcpu_stats);
- /* We clear pcpu_stats so that tun_set_iff() can tell if
+ free_percpu(dev->tstats);
+ /* We clear tstats so that tun_set_iff() can tell if
* tun_free_netdev() has been called from register_netdevice().
*/
- tun->pcpu_stats = NULL;
+ dev->tstats = NULL;
tun_flow_uninit(tun);
security_tun_dev_free_security(tun->security);
@@ -2370,7 +2322,6 @@ static int tun_xdp_one(struct tun_struct *tun,
unsigned int datasize = xdp->data_end - xdp->data;
struct tun_xdp_hdr *hdr = xdp->data_hard_start;
struct virtio_net_hdr *gso = &hdr->gso;
- struct tun_pcpu_stats *stats;
struct bpf_prog *xdp_prog;
struct sk_buff *skb = NULL;
u32 rxhash = 0, act;
@@ -2428,7 +2379,7 @@ static int tun_xdp_one(struct tun_struct *tun,
skb_put(skb, xdp->data_end - xdp->data);
if (virtio_net_hdr_to_skb(skb, gso, tun_is_little_endian(tun))) {
- this_cpu_inc(tun->pcpu_stats->rx_frame_errors);
+ atomic_long_inc(&tun->rx_frame_errors);
kfree_skb(skb);
err = -EINVAL;
goto out;
@@ -2451,14 +2402,10 @@ static int tun_xdp_one(struct tun_struct *tun,
netif_receive_skb(skb);
- /* No need for get_cpu_ptr() here since this function is
+ /* No need to disable preemption here since this function is
* always called with bh disabled
*/
- stats = this_cpu_ptr(tun->pcpu_stats);
- u64_stats_update_begin(&stats->syncp);
- u64_stats_inc(&stats->rx_packets);
- u64_stats_add(&stats->rx_bytes, datasize);
- u64_stats_update_end(&stats->syncp);
+ dev_sw_netstats_rx_add(tun->dev, datasize);
if (rxhash)
tun_flow_update(tun, rxhash, tfile);
@@ -2751,8 +2698,8 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
tun->rx_batched = 0;
RCU_INIT_POINTER(tun->steering_prog, NULL);
- tun->pcpu_stats = netdev_alloc_pcpu_stats(struct tun_pcpu_stats);
- if (!tun->pcpu_stats) {
+ dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!dev->tstats) {
err = -ENOMEM;
goto err_free_dev;
}
@@ -2807,16 +2754,16 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
tun_detach_all(dev);
/* We are here because register_netdevice() has failed.
* If register_netdevice() already called tun_free_netdev()
- * while dealing with the error, tun->pcpu_stats has been cleared.
+ * while dealing with the error, dev->stats has been cleared.
*/
- if (!tun->pcpu_stats)
+ if (!dev->tstats)
goto err_free_dev;
err_free_flow:
tun_flow_uninit(tun);
security_tun_dev_free_security(tun->security);
err_free_stat:
- free_percpu(tun->pcpu_stats);
+ free_percpu(dev->tstats);
err_free_dev:
free_netdev(dev);
return err;
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 04/10] ip6_tunnel: use ip_tunnel_get_stats64 as ndo_get_stats64 callback
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (2 preceding siblings ...)
2020-11-07 20:50 ` [PATCH net-next v3 03/10] tun: switch to net core provided statistics counters Heiner Kallweit
@ 2020-11-07 20:51 ` Heiner Kallweit
2020-11-07 20:52 ` [PATCH net-next v3 05/10] net: switch to dev_get_tstats64 Heiner Kallweit
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:51 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Switch ip6_tunnel to the standard statistics pattern:
- use dev->stats for the less frequently accessed counters
- use dev->tstats for the frequently accessed counters
An additional benefit is that we now have 64bit statistics also on
32bit systems.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
net/ipv6/ip6_tunnel.c | 32 +-------------------------------
1 file changed, 1 insertion(+), 31 deletions(-)
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 74a6ea9f8..a7950baa0 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -94,36 +94,6 @@ static inline int ip6_tnl_mpls_supported(void)
return IS_ENABLED(CONFIG_MPLS);
}
-static struct net_device_stats *ip6_get_stats(struct net_device *dev)
-{
- struct pcpu_sw_netstats tmp, sum = { 0 };
- int i;
-
- for_each_possible_cpu(i) {
- unsigned int start;
- const struct pcpu_sw_netstats *tstats =
- per_cpu_ptr(dev->tstats, i);
-
- do {
- start = u64_stats_fetch_begin_irq(&tstats->syncp);
- tmp.rx_packets = tstats->rx_packets;
- tmp.rx_bytes = tstats->rx_bytes;
- tmp.tx_packets = tstats->tx_packets;
- tmp.tx_bytes = tstats->tx_bytes;
- } while (u64_stats_fetch_retry_irq(&tstats->syncp, start));
-
- sum.rx_packets += tmp.rx_packets;
- sum.rx_bytes += tmp.rx_bytes;
- sum.tx_packets += tmp.tx_packets;
- sum.tx_bytes += tmp.tx_bytes;
- }
- dev->stats.rx_packets = sum.rx_packets;
- dev->stats.rx_bytes = sum.rx_bytes;
- dev->stats.tx_packets = sum.tx_packets;
- dev->stats.tx_bytes = sum.tx_bytes;
- return &dev->stats;
-}
-
#define for_each_ip6_tunnel_rcu(start) \
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
@@ -1834,7 +1804,7 @@ static const struct net_device_ops ip6_tnl_netdev_ops = {
.ndo_start_xmit = ip6_tnl_start_xmit,
.ndo_do_ioctl = ip6_tnl_ioctl,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats = ip6_get_stats,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 05/10] net: switch to dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (3 preceding siblings ...)
2020-11-07 20:51 ` [PATCH net-next v3 04/10] ip6_tunnel: use ip_tunnel_get_stats64 as ndo_get_stats64 callback Heiner Kallweit
@ 2020-11-07 20:52 ` Heiner Kallweit
2020-11-07 20:52 ` [PATCH net-next v3 06/10] gtp: " Heiner Kallweit
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:52 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/net/bareudp.c | 2 +-
drivers/net/geneve.c | 2 +-
drivers/net/vxlan.c | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c
index ff0bea155..28257bcce 100644
--- a/drivers/net/bareudp.c
+++ b/drivers/net/bareudp.c
@@ -510,7 +510,7 @@ static const struct net_device_ops bareudp_netdev_ops = {
.ndo_open = bareudp_open,
.ndo_stop = bareudp_stop,
.ndo_start_xmit = bareudp_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_fill_metadata_dst = bareudp_fill_metadata_dst,
};
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index d07008a81..a3c8ce6de 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1138,7 +1138,7 @@ static const struct net_device_ops geneve_netdev_ops = {
.ndo_open = geneve_open,
.ndo_stop = geneve_stop,
.ndo_start_xmit = geneve_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_change_mtu = geneve_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 876679af6..0de912729 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3211,7 +3211,7 @@ static const struct net_device_ops vxlan_netdev_ether_ops = {
.ndo_open = vxlan_open,
.ndo_stop = vxlan_stop,
.ndo_start_xmit = vxlan_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_set_rx_mode = vxlan_set_multicast_list,
.ndo_change_mtu = vxlan_change_mtu,
.ndo_validate_addr = eth_validate_addr,
@@ -3230,7 +3230,7 @@ static const struct net_device_ops vxlan_netdev_raw_ops = {
.ndo_open = vxlan_open,
.ndo_stop = vxlan_stop,
.ndo_start_xmit = vxlan_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_change_mtu = vxlan_change_mtu,
.ndo_fill_metadata_dst = vxlan_fill_metadata_dst,
};
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 06/10] gtp: switch to dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (4 preceding siblings ...)
2020-11-07 20:52 ` [PATCH net-next v3 05/10] net: switch to dev_get_tstats64 Heiner Kallweit
@ 2020-11-07 20:52 ` Heiner Kallweit
2020-11-07 20:53 ` [PATCH net-next v3 07/10] wireguard: " Heiner Kallweit
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:52 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/net/gtp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index dc668ed28..4c04e271f 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -607,7 +607,7 @@ static const struct net_device_ops gtp_netdev_ops = {
.ndo_init = gtp_dev_init,
.ndo_uninit = gtp_dev_uninit,
.ndo_start_xmit = gtp_dev_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
};
static void gtp_link_setup(struct net_device *dev)
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 07/10] wireguard: switch to dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (5 preceding siblings ...)
2020-11-07 20:52 ` [PATCH net-next v3 06/10] gtp: " Heiner Kallweit
@ 2020-11-07 20:53 ` Heiner Kallweit
2020-11-07 20:53 ` [PATCH net-next v3 08/10] vti: " Heiner Kallweit
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:53 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/net/wireguard/device.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
index c9f65e96c..a3ed49cd9 100644
--- a/drivers/net/wireguard/device.c
+++ b/drivers/net/wireguard/device.c
@@ -215,7 +215,7 @@ static const struct net_device_ops netdev_ops = {
.ndo_open = wg_open,
.ndo_stop = wg_stop,
.ndo_start_xmit = wg_xmit,
- .ndo_get_stats64 = ip_tunnel_get_stats64
+ .ndo_get_stats64 = dev_get_tstats64
};
static void wg_destruct(struct net_device *dev)
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 08/10] vti: switch to dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (6 preceding siblings ...)
2020-11-07 20:53 ` [PATCH net-next v3 07/10] wireguard: " Heiner Kallweit
@ 2020-11-07 20:53 ` Heiner Kallweit
2020-11-07 20:54 ` [PATCH net-next v3 09/10] ipv4/ipv6: " Heiner Kallweit
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:53 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
net/ipv4/ip_vti.c | 2 +-
net/ipv6/ip6_vti.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index b957cbee2..abc171e79 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -404,7 +404,7 @@ static const struct net_device_ops vti_netdev_ops = {
.ndo_start_xmit = vti_tunnel_xmit,
.ndo_do_ioctl = ip_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_tunnel_ctl = vti_tunnel_ctl,
};
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 46d137a69..0225fd694 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -890,7 +890,7 @@ static const struct net_device_ops vti6_netdev_ops = {
.ndo_uninit = vti6_dev_uninit,
.ndo_start_xmit = vti6_tnl_xmit,
.ndo_do_ioctl = vti6_ioctl,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 09/10] ipv4/ipv6: switch to dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (7 preceding siblings ...)
2020-11-07 20:53 ` [PATCH net-next v3 08/10] vti: " Heiner Kallweit
@ 2020-11-07 20:54 ` Heiner Kallweit
2020-11-07 20:55 ` [PATCH net-next v3 10/10] net: remove ip_tunnel_get_stats64 Heiner Kallweit
2020-11-10 3:58 ` [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Jakub Kicinski
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:54 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
Replace ip_tunnel_get_stats64() with the new identical core function
dev_get_tstats64().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
net/ipv4/ip_gre.c | 6 +++---
net/ipv4/ipip.c | 2 +-
net/ipv6/ip6_gre.c | 6 +++---
net/ipv6/sit.c | 2 +-
4 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index e70291748..a68bf4c6f 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -920,7 +920,7 @@ static const struct net_device_ops ipgre_netdev_ops = {
.ndo_start_xmit = ipgre_xmit,
.ndo_do_ioctl = ip_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_tunnel_ctl = ipgre_tunnel_ctl,
};
@@ -1275,7 +1275,7 @@ static const struct net_device_ops gre_tap_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip_tunnel_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_fill_metadata_dst = gre_fill_metadata_dst,
};
@@ -1308,7 +1308,7 @@ static const struct net_device_ops erspan_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip_tunnel_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_fill_metadata_dst = gre_fill_metadata_dst,
};
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 75d35e76b..d5bfa087c 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -347,7 +347,7 @@ static const struct net_device_ops ipip_netdev_ops = {
.ndo_start_xmit = ipip_tunnel_xmit,
.ndo_do_ioctl = ip_tunnel_ioctl,
.ndo_change_mtu = ip_tunnel_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_tunnel_ctl = ipip_tunnel_ctl,
};
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 931b186d2..8cf659994 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1391,7 +1391,7 @@ static const struct net_device_ops ip6gre_netdev_ops = {
.ndo_start_xmit = ip6gre_tunnel_xmit,
.ndo_do_ioctl = ip6gre_tunnel_ioctl,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
@@ -1828,7 +1828,7 @@ static const struct net_device_ops ip6gre_tap_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
@@ -1896,7 +1896,7 @@ static const struct net_device_ops ip6erspan_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 5e2c34c0a..4dc5f9366 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1396,7 +1396,7 @@ static const struct net_device_ops ipip6_netdev_ops = {
.ndo_uninit = ipip6_tunnel_uninit,
.ndo_start_xmit = sit_tunnel_xmit,
.ndo_do_ioctl = ipip6_tunnel_ioctl,
- .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip_tunnel_get_iflink,
.ndo_tunnel_ctl = ipip6_tunnel_ctl,
};
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH net-next v3 10/10] net: remove ip_tunnel_get_stats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (8 preceding siblings ...)
2020-11-07 20:54 ` [PATCH net-next v3 09/10] ipv4/ipv6: " Heiner Kallweit
@ 2020-11-07 20:55 ` Heiner Kallweit
2020-11-10 3:58 ` [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Jakub Kicinski
10 siblings, 0 replies; 12+ messages in thread
From: Heiner Kallweit @ 2020-11-07 20:55 UTC (permalink / raw)
To: Jakub Kicinski, David Miller, Alexey Kuznetsov,
Hideaki YOSHIFUJI, Andrew Lunn, Vivien Didelot, Florian Fainelli,
Vladimir Oltean, Russell King, Pablo Neira Ayuso, Harald Welte,
Jason A. Donenfeld, Herbert Xu
Cc: netdev, osmocom-net-gprs, wireguard, Steffen Klassert
After having migrated all users remove ip_tunnel_get_stats64().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
include/net/ip_tunnels.h | 2 --
net/ipv4/ip_tunnel_core.c | 9 ---------
2 files changed, 11 deletions(-)
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 02ccd3254..1b7905eb7 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -274,8 +274,6 @@ int ip_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
int __ip_tunnel_change_mtu(struct net_device *dev, int new_mtu, bool strict);
int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu);
-void ip_tunnel_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *tot);
struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
int link, __be16 flags,
__be32 remote, __be32 local,
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 25f1caf5a..923a9fa2e 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -429,15 +429,6 @@ int skb_tunnel_check_pmtu(struct sk_buff *skb, struct dst_entry *encap_dst,
}
EXPORT_SYMBOL(skb_tunnel_check_pmtu);
-/* Often modified stats are per cpu, other are shared (netdev->stats) */
-void ip_tunnel_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *tot)
-{
- netdev_stats_to_stats64(tot, &dev->stats);
- dev_fetch_sw_netstats(tot, dev->tstats);
-}
-EXPORT_SYMBOL_GPL(ip_tunnel_get_stats64);
-
static const struct nla_policy ip_tun_policy[LWTUNNEL_IP_MAX + 1] = {
[LWTUNNEL_IP_UNSPEC] = { .strict_start_type = LWTUNNEL_IP_OPTS },
[LWTUNNEL_IP_ID] = { .type = NLA_U64 },
--
2.29.2
^ permalink raw reply [flat|nested] 12+ messages in thread* Re: [PATCH net-next v3 00/10] net: add and use dev_get_tstats64
2020-11-07 20:48 [PATCH net-next v3 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
` (9 preceding siblings ...)
2020-11-07 20:55 ` [PATCH net-next v3 10/10] net: remove ip_tunnel_get_stats64 Heiner Kallweit
@ 2020-11-10 3:58 ` Jakub Kicinski
10 siblings, 0 replies; 12+ messages in thread
From: Jakub Kicinski @ 2020-11-10 3:58 UTC (permalink / raw)
To: Heiner Kallweit
Cc: David Miller, Alexey Kuznetsov, Hideaki YOSHIFUJI, Andrew Lunn,
Vivien Didelot, Florian Fainelli, Vladimir Oltean, Russell King,
Pablo Neira Ayuso, Harald Welte, Jason A. Donenfeld, Herbert Xu,
netdev, osmocom-net-gprs, wireguard, Steffen Klassert
On Sat, 7 Nov 2020 21:48:13 +0100 Heiner Kallweit wrote:
> It's a frequent pattern to use netdev->stats for the less frequently
> accessed counters and per-cpu counters for the frequently accessed
> counters (rx/tx bytes/packets). Add a default ndo_get_stats64()
> implementation for this use case. Subsequently switch more drivers
> to use this pattern.
>
> v2:
> - add patches for replacing ip_tunnel_get_stats64
> Requested additional migrations will come in a separate series.
>
> v3:
> - add atomic_long_t member rx_frame_errors in patch 3 for making
> counter updates atomic
Applied, thank you!
^ permalink raw reply [flat|nested] 12+ messages in thread