nlmon.c (58e16d792a6a8c6b750f637a4649967fcac853dc) nlmon.c (3ed912264f1c057be6afcbbd2a362787ee020a92)
1// SPDX-License-Identifier: GPL-2.0-only
2#include <linux/module.h>
3#include <linux/kernel.h>
4#include <linux/netdevice.h>
5#include <linux/netlink.h>
6#include <net/net_namespace.h>
7#include <linux/if_arp.h>
8#include <net/rtnetlink.h>
9
10static netdev_tx_t nlmon_xmit(struct sk_buff *skb, struct net_device *dev)
11{
1// SPDX-License-Identifier: GPL-2.0-only
2#include <linux/module.h>
3#include <linux/kernel.h>
4#include <linux/netdevice.h>
5#include <linux/netlink.h>
6#include <net/net_namespace.h>
7#include <linux/if_arp.h>
8#include <net/rtnetlink.h>
9
10static netdev_tx_t nlmon_xmit(struct sk_buff *skb, struct net_device *dev)
11{
12 int len = skb->len;
13 struct pcpu_lstats *stats = this_cpu_ptr(dev->lstats);
12 dev_lstats_add(dev, skb->len);
14
13
15 u64_stats_update_begin(&stats->syncp);
16 stats->bytes += len;
17 stats->packets++;
18 u64_stats_update_end(&stats->syncp);
19
20 dev_kfree_skb(skb);
21
22 return NETDEV_TX_OK;
23}
24
25static int nlmon_dev_init(struct net_device *dev)
26{
27 dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats);

--- 23 unchanged lines hidden (view full) ---

51 struct nlmon *nlmon = netdev_priv(dev);
52
53 return netlink_remove_tap(&nlmon->nt);
54}
55
56static void
57nlmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
58{
14 dev_kfree_skb(skb);
15
16 return NETDEV_TX_OK;
17}
18
19static int nlmon_dev_init(struct net_device *dev)
20{
21 dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats);

--- 23 unchanged lines hidden (view full) ---

45 struct nlmon *nlmon = netdev_priv(dev);
46
47 return netlink_remove_tap(&nlmon->nt);
48}
49
50static void
51nlmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
52{
59 int i;
60 u64 bytes = 0, packets = 0;
53 u64 packets, bytes;
61
54
62 for_each_possible_cpu(i) {
63 const struct pcpu_lstats *nl_stats;
64 u64 tbytes, tpackets;
65 unsigned int start;
55 dev_lstats_read(dev, &packets, &bytes);
66
56
67 nl_stats = per_cpu_ptr(dev->lstats, i);
68
69 do {
70 start = u64_stats_fetch_begin_irq(&nl_stats->syncp);
71 tbytes = nl_stats->bytes;
72 tpackets = nl_stats->packets;
73 } while (u64_stats_fetch_retry_irq(&nl_stats->syncp, start));
74
75 packets += tpackets;
76 bytes += tbytes;
77 }
78
79 stats->rx_packets = packets;
80 stats->tx_packets = 0;
81
82 stats->rx_bytes = bytes;
83 stats->tx_bytes = 0;
84}
85
86static u32 always_on(struct net_device *dev)

--- 71 unchanged lines hidden --- 		57 stats->rx_packets = packets;
58 stats->tx_packets = 0;
59
60 stats->rx_bytes = bytes;
61 stats->tx_bytes = 0;
62}
63
64static u32 always_on(struct net_device *dev)

--- 71 unchanged lines hidden ---