Merge branch 'next' into for-linus

1 files changed, 36 insertions, 7 deletions

diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 9fd45f3571f9..a4886d94c40c 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -3,6 +3,7 @@
 
 #include <linux/if_vlan.h>
 #include <linux/u64_stats_sync.h>
+#include <linux/list.h>
 
 
 /**
@@ -40,8 +41,10 @@ struct vlan_pcpu_stats {
 	u32			tx_dropped;
 };
 
+struct netpoll;
+
 /**
- *	struct vlan_dev_info - VLAN private device data
+ *	struct vlan_dev_priv - VLAN private device data
  *	@nr_ingress_mappings: number of ingress priority mappings
  *	@ingress_priority_map: ingress priority mappings
  *	@nr_egress_mappings: number of egress priority mappings
@@ -53,7 +56,7 @@ struct vlan_pcpu_stats {
  *	@dent: proc dir entry
  *	@vlan_pcpu_stats: ptr to percpu rx stats
  */
-struct vlan_dev_info {
+struct vlan_dev_priv {
 	unsigned int				nr_ingress_mappings;
 	u32					ingress_priority_map[8];
 	unsigned int				nr_egress_mappings;
@@ -67,13 +70,39 @@ struct vlan_dev_info {
 
 	struct proc_dir_entry			*dent;
 	struct vlan_pcpu_stats __percpu		*vlan_pcpu_stats;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	struct netpoll				*netpoll;
+#endif
 };
 
-static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
+static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev)
 {
 	return netdev_priv(dev);
 }
 
+/* if this changes, algorithm will have to be reworked because this
+ * depends on completely exhausting the VLAN identifier space.  Thus
+ * it gives constant time look-up, but in many cases it wastes memory.
+ */
+#define VLAN_GROUP_ARRAY_SPLIT_PARTS  8
+#define VLAN_GROUP_ARRAY_PART_LEN     (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS)
+
+struct vlan_group {
+	unsigned int		nr_vlan_devs;
+	struct hlist_node	hlist;	/* linked list */
+	struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS];
+};
+
+struct vlan_info {
+	struct net_device	*real_dev; /* The ethernet(like) device
+					    * the vlan is attached to.
+					    */
+	struct vlan_group	grp;
+	struct list_head	vid_list;
+	unsigned int		nr_vids;
+	struct rcu_head		rcu;
+};
+
 static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
 						       u16 vlan_id)
 {
@@ -97,10 +126,10 @@ static inline void vlan_group_set_device(struct vlan_group *vg,
 static inline struct net_device *vlan_find_dev(struct net_device *real_dev,
 					       u16 vlan_id)
 {
-	struct vlan_group *grp = rcu_dereference_rtnl(real_dev->vlgrp);
+	struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info);
 
-	if (grp)
-		return vlan_group_get_device(grp, vlan_id);
+	if (vlan_info)
+		return vlan_group_get_device(&vlan_info->grp, vlan_id);
 
 	return NULL;
 }
@@ -121,7 +150,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
 static inline u32 vlan_get_ingress_priority(struct net_device *dev,
 					    u16 vlan_tci)
 {
-	struct vlan_dev_info *vip = vlan_dev_info(dev);
+	struct vlan_dev_priv *vip = vlan_dev_priv(dev);
 
 	return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7];
 }