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-rw-r--r--net/8021q/vlan.h17
-rw-r--r--net/8021q/vlan_core.c12
-rw-r--r--net/8021q/vlan_dev.c47
3 files changed, 65 insertions, 11 deletions
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 68f9290e6837..5685296017e9 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -16,6 +16,21 @@ struct vlan_priority_tci_mapping {
struct vlan_priority_tci_mapping *next;
};
+
+/**
+ * struct vlan_rx_stats - VLAN percpu rx stats
+ * @rx_packets: number of received packets
+ * @rx_bytes: number of received bytes
+ * @multicast: number of received multicast packets
+ * @rx_errors: number of errors
+ */
+struct vlan_rx_stats {
+ unsigned long rx_packets;
+ unsigned long rx_bytes;
+ unsigned long multicast;
+ unsigned long rx_errors;
+};
+
/**
* struct vlan_dev_info - VLAN private device data
* @nr_ingress_mappings: number of ingress priority mappings
@@ -29,6 +44,7 @@ struct vlan_priority_tci_mapping {
* @dent: proc dir entry
* @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX
* @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX
+ * @vlan_rx_stats: ptr to percpu rx stats
*/
struct vlan_dev_info {
unsigned int nr_ingress_mappings;
@@ -45,6 +61,7 @@ struct vlan_dev_info {
struct proc_dir_entry *dent;
unsigned long cnt_inc_headroom_on_tx;
unsigned long cnt_encap_on_xmit;
+ struct vlan_rx_stats *vlan_rx_stats;
};
static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 971d3755ae87..e75a2f3b10af 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -31,7 +31,7 @@ EXPORT_SYMBOL(__vlan_hwaccel_rx);
int vlan_hwaccel_do_receive(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
- struct net_device_stats *stats;
+ struct vlan_rx_stats *rx_stats;
skb->dev = vlan_dev_info(dev)->real_dev;
netif_nit_deliver(skb);
@@ -40,15 +40,17 @@ int vlan_hwaccel_do_receive(struct sk_buff *skb)
skb->priority = vlan_get_ingress_priority(dev, skb->vlan_tci);
skb->vlan_tci = 0;
- stats = &dev->stats;
- stats->rx_packets++;
- stats->rx_bytes += skb->len;
+ rx_stats = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats,
+ smp_processor_id());
+
+ rx_stats->rx_packets++;
+ rx_stats->rx_bytes += skb->len;
switch (skb->pkt_type) {
case PACKET_BROADCAST:
break;
case PACKET_MULTICAST:
- stats->multicast++;
+ rx_stats->multicast++;
break;
case PACKET_OTHERHOST:
/* Our lower layer thinks this is not local, let's make sure.
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 915965942139..de0dc6bacbe8 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -140,7 +140,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *ptype, struct net_device *orig_dev)
{
struct vlan_hdr *vhdr;
- struct net_device_stats *stats;
+ struct vlan_rx_stats *rx_stats;
u16 vlan_id;
u16 vlan_tci;
@@ -163,9 +163,10 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
goto err_unlock;
}
- stats = &skb->dev->stats;
- stats->rx_packets++;
- stats->rx_bytes += skb->len;
+ rx_stats = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats,
+ smp_processor_id());
+ rx_stats->rx_packets++;
+ rx_stats->rx_bytes += skb->len;
skb_pull_rcsum(skb, VLAN_HLEN);
@@ -180,7 +181,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
break;
case PACKET_MULTICAST:
- stats->multicast++;
+ rx_stats->multicast++;
break;
case PACKET_OTHERHOST:
@@ -200,7 +201,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
skb = vlan_check_reorder_header(skb);
if (!skb) {
- stats->rx_errors++;
+ rx_stats->rx_errors++;
goto err_unlock;
}
@@ -731,6 +732,11 @@ static int vlan_dev_init(struct net_device *dev)
subclass = 1;
vlan_dev_set_lockdep_class(dev, subclass);
+
+ vlan_dev_info(dev)->vlan_rx_stats = alloc_percpu(struct vlan_rx_stats);
+ if (!vlan_dev_info(dev)->vlan_rx_stats)
+ return -ENOMEM;
+
return 0;
}
@@ -740,6 +746,8 @@ static void vlan_dev_uninit(struct net_device *dev)
struct vlan_dev_info *vlan = vlan_dev_info(dev);
int i;
+ free_percpu(vlan->vlan_rx_stats);
+ vlan->vlan_rx_stats = NULL;
for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) {
while ((pm = vlan->egress_priority_map[i]) != NULL) {
vlan->egress_priority_map[i] = pm->next;
@@ -775,6 +783,31 @@ static u32 vlan_ethtool_get_flags(struct net_device *dev)
return dev_ethtool_get_flags(vlan->real_dev);
}
+static struct net_device_stats *vlan_dev_get_stats(struct net_device *dev)
+{
+ struct net_device_stats *stats = &dev->stats;
+
+ dev_txq_stats_fold(dev, stats);
+
+ if (vlan_dev_info(dev)->vlan_rx_stats) {
+ struct vlan_rx_stats *p, rx = {0};
+ int i;
+
+ for_each_possible_cpu(i) {
+ p = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats, i);
+ rx.rx_packets += p->rx_packets;
+ rx.rx_bytes += p->rx_bytes;
+ rx.rx_errors += p->rx_errors;
+ rx.multicast += p->multicast;
+ }
+ stats->rx_packets = rx.rx_packets;
+ stats->rx_bytes = rx.rx_bytes;
+ stats->rx_errors = rx.rx_errors;
+ stats->multicast = rx.multicast;
+ }
+ return stats;
+}
+
static const struct ethtool_ops vlan_ethtool_ops = {
.get_settings = vlan_ethtool_get_settings,
.get_drvinfo = vlan_ethtool_get_drvinfo,
@@ -797,6 +830,7 @@ static const struct net_device_ops vlan_netdev_ops = {
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
.ndo_do_ioctl = vlan_dev_ioctl,
.ndo_neigh_setup = vlan_dev_neigh_setup,
+ .ndo_get_stats = vlan_dev_get_stats,
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
.ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
.ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
@@ -820,6 +854,7 @@ static const struct net_device_ops vlan_netdev_accel_ops = {
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
.ndo_do_ioctl = vlan_dev_ioctl,
.ndo_neigh_setup = vlan_dev_neigh_setup,
+ .ndo_get_stats = vlan_dev_get_stats,
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
.ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup,
.ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.