X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=include%2Flinux%2Fnetdevice.h;h=880d56565828df5d48b1ba5c98aa3b984be00451;hp=46c36ffe20eed83f4be29dfd4b75bc694c110c68;hb=e6484930d7c7;hpb=26b55633a891a28bf04f42882de145eb8e9cb9ad;ds=sidebyside

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 46c36ffe20ee..880d56565828 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -228,9 +228,9 @@ struct netdev_hw_addr {
 #define NETDEV_HW_ADDR_T_SLAVE		3
 #define NETDEV_HW_ADDR_T_UNICAST	4
 #define NETDEV_HW_ADDR_T_MULTICAST	5
-	int			refcount;
 	bool			synced;
 	bool			global_use;
+	int			refcount;
 	struct rcu_head		rcu_head;
 };
 
@@ -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 +
@@ -884,6 +890,9 @@ struct net_device {
 	int			iflink;
 
 	struct net_device_stats	stats;
+	atomic_long_t		rx_dropped; /* dropped packets by core network
+					     * Do not use this in drivers.
+					     */
 
 #ifdef CONFIG_WIRELESS_EXT
 	/* List of functions to handle Wireless Extensions (instead of ioctl).
@@ -901,7 +910,7 @@ struct net_device {
 
 	unsigned int		flags;	/* interface flags (a la BSD)	*/
 	unsigned short		gflags;
-        unsigned short          priv_flags; /* Like 'flags' but invisible to userspace. */
+        unsigned int            priv_flags; /* Like 'flags' but invisible to userspace. */
 	unsigned short		padded;	/* How much padding added by alloc_netdev() */
 
 	unsigned char		operstate; /* RFC2863 operstate */
@@ -918,10 +927,6 @@ struct net_device {
 	unsigned short		needed_headroom;
 	unsigned short		needed_tailroom;
 
-	struct net_device	*master; /* Pointer to master device of a group,
-					  * which this device is member of.
-					  */
-
 	/* Interface address info. */
 	unsigned char		perm_addr[MAX_ADDR_LEN]; /* permanent hw address */
 	unsigned char		addr_assign_type; /* hw address assignment type */
@@ -942,7 +947,7 @@ struct net_device {
 	void			*dsa_ptr;	/* dsa specific data */
 #endif
 	void 			*atalk_ptr;	/* AppleTalk link 	*/
-	void			*ip_ptr;	/* IPv4 specific data	*/
+	struct in_device __rcu	*ip_ptr;	/* IPv4 specific data	*/
 	void                    *dn_ptr;        /* DECnet specific data */
 	void                    *ip6_ptr;       /* IPv6 specific data */
 	void			*ec_ptr;	/* Econet specific data	*/
@@ -951,9 +956,20 @@ struct net_device {
 						   assign before registering */
 
 /*
- * Cache line mostly used on receive path (including eth_type_trans())
+ * Cache lines mostly used on receive path (including eth_type_trans())
  */
-	unsigned long		last_rx;	/* Time of last Rx	*/
+	unsigned long		last_rx;	/* Time of last Rx
+						 * This should not be set in
+						 * drivers, unless really needed,
+						 * because network stack (bonding)
+						 * use it if/when necessary, to
+						 * avoid dirtying this cache line.
+						 */
+
+	struct net_device	*master; /* Pointer to master device of a group,
+					  * which this device is member of.
+					  */
+
 	/* Interface address info used in eth_type_trans() */
 	unsigned char		*dev_addr;	/* hw address, (before bcast
 						   because most packets are
@@ -969,14 +985,21 @@ struct net_device {
 
 	struct netdev_rx_queue	*_rx;
 
-	/* Number of RX queues allocated at alloc_netdev_mq() time  */
+	/* Number of RX queues allocated at register_netdev() time */
 	unsigned int		num_rx_queues;
+
+	/* Number of RX queues currently active in device */
+	unsigned int		real_num_rx_queues;
 #endif
 
-	struct netdev_queue	rx_queue;
 	rx_handler_func_t	*rx_handler;
 	void			*rx_handler_data;
 
+	struct netdev_queue __rcu *ingress_queue;
+
+/*
+ * Cache lines mostly used on transmit path
+ */
 	struct netdev_queue	*_tx ____cacheline_aligned_in_smp;
 
 	/* Number of TX queues allocated at alloc_netdev_mq() time  */
@@ -990,9 +1013,7 @@ struct net_device {
 
 	unsigned long		tx_queue_len;	/* Max frames per queue allowed */
 	spinlock_t		tx_global_lock;
-/*
- * One part is mostly used on xmit path (device)
- */
+
 	/* These may be needed for future network-power-down code. */
 
 	/*
@@ -1005,7 +1026,7 @@ 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;
@@ -1041,8 +1062,12 @@ struct net_device {
 #endif
 
 	/* mid-layer private */
-	void			*ml_priv;
-
+	union {
+		void				*ml_priv;
+		struct pcpu_lstats __percpu	*lstats; /* loopback stats */
+		struct pcpu_tstats __percpu	*tstats; /* tunnel stats */
+		struct pcpu_dstats __percpu	*dstats; /* dummy stats */
+	};
 	/* GARP */
 	struct garp_port	*garp_port;
 
@@ -1305,6 +1330,7 @@ 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);
@@ -1667,11 +1693,34 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
  */
 static inline int netif_is_multiqueue(const struct net_device *dev)
 {
-	return (dev->num_tx_queues > 1);
+	return dev->num_tx_queues > 1;
+}
+
+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,
+					unsigned int rxq);
+#else
+static inline int netif_set_real_num_rx_queues(struct net_device *dev,
+						unsigned int rxq)
+{
+	return 0;
 }
+#endif
 
-extern void netif_set_real_num_tx_queues(struct net_device *dev,
-					 unsigned int txq);
+static inline int netif_copy_real_num_queues(struct net_device *to_dev,
+					     const struct net_device *from_dev)
+{
+	netif_set_real_num_tx_queues(to_dev, from_dev->real_num_tx_queues);
+#ifdef CONFIG_RPS
+	return netif_set_real_num_rx_queues(to_dev,
+					    from_dev->real_num_rx_queues);
+#else
+	return 0;
+#endif
+}
 
 /* Use this variant when it is known for sure that it
  * is executing from hardware interrupt context or with hardware interrupts
@@ -1695,6 +1744,7 @@ extern gro_result_t	dev_gro_receive(struct napi_struct *napi,
 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);
@@ -1749,7 +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);
 }
 
 /**
@@ -1760,7 +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
@@ -2171,6 +2221,8 @@ extern void dev_seq_stop(struct seq_file *seq, void *v);
 extern int netdev_class_create_file(struct class_attribute *class_attr);
 extern void netdev_class_remove_file(struct class_attribute *class_attr);
 
+extern struct kobj_ns_type_operations net_ns_type_operations;
+
 extern char *netdev_drivername(const struct net_device *dev, char *buffer, int len);
 
 extern void linkwatch_run_queue(void);
@@ -2191,7 +2243,7 @@ static inline int net_gso_ok(int features, int gso_type)
 static inline int skb_gso_ok(struct sk_buff *skb, int features)
 {
 	return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
-	       (!skb_has_frags(skb) || (features & NETIF_F_FRAGLIST));
+	       (!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));
 }
 
 static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)