Merge tag 'for-linus-20140225' of git://git.infradead.org/linux-mtd

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 440a02e..e8eeebd 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -752,6 +752,9 @@ struct netdev_phys_port_id {
        unsigned char id_len;
 };
 
+typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
+                                      struct sk_buff *skb);
+
 /*
  * This structure defines the management hooks for network devices.
  * The following hooks can be defined; unless noted otherwise, they are
@@ -783,7 +786,7 @@ struct netdev_phys_port_id {
  *     Required can not be NULL.
  *
  * u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb,
- *                         void *accel_priv);
+ *                         void *accel_priv, select_queue_fallback_t fallback);
  *     Called to decide which queue to when device supports multiple
  *     transmit queues.
  *
@@ -1005,7 +1008,8 @@ struct net_device_ops {
                                                   struct net_device *dev);
        u16                     (*ndo_select_queue)(struct net_device *dev,
                                                    struct sk_buff *skb,
-                                                   void *accel_priv);
+                                                   void *accel_priv,
+                                                   select_queue_fallback_t fallback);
        void                    (*ndo_change_rx_flags)(struct net_device *dev,
                                                       int flags);
        void                    (*ndo_set_rx_mode)(struct net_device *dev);
@@ -1551,7 +1555,6 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev,
 struct netdev_queue *netdev_pick_tx(struct net_device *dev,
                                    struct sk_buff *skb,
                                    void *accel_priv);
-u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb);
 
 /*
  * Net namespace inlines
@@ -2276,6 +2279,26 @@ static inline void netdev_reset_queue(struct net_device *dev_queue)
 }
 
 /**
+ *     netdev_cap_txqueue - check if selected tx queue exceeds device queues
+ *     @dev: network device
+ *     @queue_index: given tx queue index
+ *
+ *     Returns 0 if given tx queue index >= number of device tx queues,
+ *     otherwise returns the originally passed tx queue index.
+ */
+static inline u16 netdev_cap_txqueue(struct net_device *dev, u16 queue_index)
+{
+       if (unlikely(queue_index >= dev->real_num_tx_queues)) {
+               net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n",
+                                    dev->name, queue_index,
+                                    dev->real_num_tx_queues);
+               return 0;
+       }
+
+       return queue_index;
+}
+
+/**
  *     netif_running - test if up
  *     @dev: network device
  *
@@ -3068,7 +3091,12 @@ void netdev_change_features(struct net_device *dev);
 void netif_stacked_transfer_operstate(const struct net_device *rootdev,
                                        struct net_device *dev);
 
-netdev_features_t netif_skb_features(struct sk_buff *skb);
+netdev_features_t netif_skb_dev_features(struct sk_buff *skb,
+                                        const struct net_device *dev);
+static inline netdev_features_t netif_skb_features(struct sk_buff *skb)
+{
+       return netif_skb_dev_features(skb, skb->dev);
+}
 
 static inline bool net_gso_ok(netdev_features_t features, int gso_type)
 {