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path: root/drivers/net/usb/usbnet.c
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Diffstat (limited to 'drivers/net/usb/usbnet.c')
-rw-r--r--drivers/net/usb/usbnet.c55
1 files changed, 51 insertions, 4 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 13d4ec5f6f34..9890656af735 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -316,6 +316,7 @@ static void __usbnet_status_stop_force(struct usbnet *dev)
*/
void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
{
+ struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64);
int status;
if (test_bit(EVENT_RX_PAUSED, &dev->flags)) {
@@ -327,8 +328,10 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
if (skb->protocol == 0)
skb->protocol = eth_type_trans (skb, dev->net);
- dev->net->stats.rx_packets++;
- dev->net->stats.rx_bytes += skb->len;
+ u64_stats_update_begin(&stats64->syncp);
+ stats64->rx_packets++;
+ stats64->rx_bytes += skb->len;
+ u64_stats_update_end(&stats64->syncp);
netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
skb->len + sizeof (struct ethhdr), skb->protocol);
@@ -981,6 +984,37 @@ int usbnet_set_link_ksettings(struct net_device *net,
}
EXPORT_SYMBOL_GPL(usbnet_set_link_ksettings);
+void usbnet_get_stats64(struct net_device *net, struct rtnl_link_stats64 *stats)
+{
+ struct usbnet *dev = netdev_priv(net);
+ unsigned int start;
+ int cpu;
+
+ netdev_stats_to_stats64(stats, &net->stats);
+
+ for_each_possible_cpu(cpu) {
+ struct pcpu_sw_netstats *stats64;
+ u64 rx_packets, rx_bytes;
+ u64 tx_packets, tx_bytes;
+
+ stats64 = per_cpu_ptr(dev->stats64, cpu);
+
+ do {
+ start = u64_stats_fetch_begin_irq(&stats64->syncp);
+ rx_packets = stats64->rx_packets;
+ rx_bytes = stats64->rx_bytes;
+ tx_packets = stats64->tx_packets;
+ tx_bytes = stats64->tx_bytes;
+ } while (u64_stats_fetch_retry_irq(&stats64->syncp, start));
+
+ stats->rx_packets += rx_packets;
+ stats->rx_bytes += rx_bytes;
+ stats->tx_packets += tx_packets;
+ stats->tx_bytes += tx_bytes;
+ }
+}
+EXPORT_SYMBOL_GPL(usbnet_get_stats64);
+
u32 usbnet_get_link (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
@@ -1212,8 +1246,12 @@ static void tx_complete (struct urb *urb)
struct usbnet *dev = entry->dev;
if (urb->status == 0) {
- dev->net->stats.tx_packets += entry->packets;
- dev->net->stats.tx_bytes += entry->length;
+ struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64);
+
+ u64_stats_update_begin(&stats64->syncp);
+ stats64->tx_packets += entry->packets;
+ stats64->tx_bytes += entry->length;
+ u64_stats_update_end(&stats64->syncp);
} else {
dev->net->stats.tx_errors++;
@@ -1570,6 +1608,7 @@ void usbnet_disconnect (struct usb_interface *intf)
usb_free_urb(dev->interrupt);
kfree(dev->padding_pkt);
+ free_percpu(dev->stats64);
free_netdev(net);
}
EXPORT_SYMBOL_GPL(usbnet_disconnect);
@@ -1581,6 +1620,7 @@ static const struct net_device_ops usbnet_netdev_ops = {
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_set_rx_mode = usbnet_set_rx_mode,
.ndo_change_mtu = usbnet_change_mtu,
+ .ndo_get_stats64 = usbnet_get_stats64,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
@@ -1642,6 +1682,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
dev->intf = udev;
dev->driver_info = info;
dev->driver_name = name;
+
+ dev->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!dev->stats64)
+ goto out0;
+
dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
init_waitqueue_head(&dev->wait);
@@ -1781,6 +1826,8 @@ out1:
*/
cancel_work_sync(&dev->kevent);
del_timer_sync(&dev->delay);
+ free_percpu(dev->stats64);
+out0:
free_netdev(net);
out:
return status;