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-rw-r--r--include/linux/netdevice.h7
-rw-r--r--net/8021q/vlan_dev.c15
2 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 03cff88c7292..8823a56744f1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -850,11 +850,18 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
enum net_device_path_type {
DEV_PATH_ETHERNET = 0,
+ DEV_PATH_VLAN,
};
struct net_device_path {
enum net_device_path_type type;
const struct net_device *dev;
+ union {
+ struct {
+ u16 id;
+ __be16 proto;
+ } encap;
+ };
};
#define NET_DEVICE_PATH_STACK_MAX 5
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index dc1a197792e6..1b1955a63f7f 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -776,6 +776,20 @@ static int vlan_dev_get_iflink(const struct net_device *dev)
return real_dev->ifindex;
}
+static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx,
+ struct net_device_path *path)
+{
+ struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev);
+
+ path->type = DEV_PATH_VLAN;
+ path->encap.id = vlan->vlan_id;
+ path->encap.proto = vlan->vlan_proto;
+ path->dev = ctx->dev;
+ ctx->dev = vlan->real_dev;
+
+ return 0;
+}
+
static const struct ethtool_ops vlan_ethtool_ops = {
.get_link_ksettings = vlan_ethtool_get_link_ksettings,
.get_drvinfo = vlan_ethtool_get_drvinfo,
@@ -814,6 +828,7 @@ static const struct net_device_ops vlan_netdev_ops = {
#endif
.ndo_fix_features = vlan_dev_fix_features,
.ndo_get_iflink = vlan_dev_get_iflink,
+ .ndo_fill_forward_path = vlan_dev_fill_forward_path,
};
static void vlan_dev_free(struct net_device *dev)