X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=include%2Flinux%2Fnetdevice.h;h=fcd3dda8632282c1d23882c28f0a1b4d3bb9828f;hb=f253b86b4ad1b3220544e75880510fd455ebd23f;hp=6abcef67b1784e2309394976ac41133c5bbd337f;hpb=42560ca0616d26c15ff626590101806b99ac95bb;p=cascardo%2Flinux.git

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6abcef67b178..fcd3dda86322 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -281,6 +281,12 @@ struct hh_cache {
 	unsigned long	hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)];
 };
 
+static inline void hh_cache_put(struct hh_cache *hh)
+{
+	if (atomic_dec_and_test(&hh->hh_refcnt))
+		kfree(hh);
+}
+
 /* Reserve HH_DATA_MOD byte aligned hard_header_len, but at least that much.
  * Alternative is:
  *   dev->hard_header_len ? (dev->hard_header_len +
@@ -936,7 +942,10 @@ struct net_device {
 
 
 	/* Protocol specific pointers */
-	
+
+#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
+	struct vlan_group	*vlgrp;		/* VLAN group */
+#endif
 #ifdef CONFIG_NET_DSA
 	void			*dsa_ptr;	/* dsa specific data */
 #endif
@@ -1020,7 +1029,7 @@ struct net_device {
 	struct timer_list	watchdog_timer;
 
 	/* Number of references to this device */
-	atomic_t		refcnt ____cacheline_aligned_in_smp;
+	int __percpu		*pcpu_refcnt;
 
 	/* delayed register/unregister */
 	struct list_head	todo_list;
@@ -1324,6 +1333,7 @@ static inline void unregister_netdevice(struct net_device *dev)
 	unregister_netdevice_queue(dev, NULL);
 }
 
+extern int 		netdev_refcnt_read(const struct net_device *dev);
 extern void		free_netdev(struct net_device *dev);
 extern void		synchronize_net(void);
 extern int 		register_netdevice_notifier(struct notifier_block *nb);
@@ -1689,8 +1699,8 @@ static inline int netif_is_multiqueue(const struct net_device *dev)
 	return dev->num_tx_queues > 1;
 }
 
-extern void netif_set_real_num_tx_queues(struct net_device *dev,
-					 unsigned int txq);
+extern int netif_set_real_num_tx_queues(struct net_device *dev,
+					unsigned int txq);
 
 #ifdef CONFIG_RPS
 extern int netif_set_real_num_rx_queues(struct net_device *dev,
@@ -1738,8 +1748,6 @@ extern gro_result_t	napi_skb_finish(gro_result_t ret, struct sk_buff *skb);
 extern gro_result_t	napi_gro_receive(struct napi_struct *napi,
 					 struct sk_buff *skb);
 extern void		napi_gro_flush(struct napi_struct *napi);
-extern void		napi_reuse_skb(struct napi_struct *napi,
-				       struct sk_buff *skb);
 extern struct sk_buff *	napi_get_frags(struct napi_struct *napi);
 extern gro_result_t	napi_frags_finish(struct napi_struct *napi,
 					  struct sk_buff *skb,
@@ -1758,7 +1766,6 @@ extern int netdev_rx_handler_register(struct net_device *dev,
 				      void *rx_handler_data);
 extern void netdev_rx_handler_unregister(struct net_device *dev);
 
-extern void		netif_nit_deliver(struct sk_buff *skb);
 extern int		dev_valid_name(const char *name);
 extern int		dev_ioctl(struct net *net, unsigned int cmd, void __user *);
 extern int		dev_ethtool(struct net *net, struct ifreq *);
@@ -1792,7 +1799,7 @@ extern void netdev_run_todo(void);
  */
 static inline void dev_put(struct net_device *dev)
 {
-	atomic_dec(&dev->refcnt);
+	irqsafe_cpu_dec(*dev->pcpu_refcnt);
 }
 
 /**
@@ -1803,7 +1810,7 @@ static inline void dev_put(struct net_device *dev)
  */
 static inline void dev_hold(struct net_device *dev)
 {
-	atomic_inc(&dev->refcnt);
+	irqsafe_cpu_inc(*dev->pcpu_refcnt);
 }
 
 /* Carrier loss detection, dial on demand. The functions netif_carrier_on
@@ -2241,9 +2248,17 @@ static inline int skb_gso_ok(struct sk_buff *skb, int features)
 
 static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)
 {
-	return skb_is_gso(skb) &&
-	       (!skb_gso_ok(skb, dev->features) ||
-		unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
+	if (skb_is_gso(skb)) {
+		int features = dev->features;
+
+		if (skb->protocol == htons(ETH_P_8021Q) || skb->vlan_tci)
+			features &= dev->vlan_features;
+
+		return (!skb_gso_ok(skb, features) ||
+			unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
+	}
+
+	return 0;
 }
 
 static inline void netif_set_gso_max_size(struct net_device *dev,