net: Allow changing number of RX queues after device allocation

[mirror_ubuntu-artful-kernel.git] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 83de0eb7a071200308668703511a76629a204bc3..b15732e22eeeede81de1210f853f1a54d54cec15 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -976,8 +976,11 @@ 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
 
        rx_handler_func_t       *rx_handler;
@@ -1685,6 +1688,17 @@ static inline int netif_is_multiqueue(const struct net_device *dev)
 extern void 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
+
 /* Use this variant when it is known for sure that it
  * is executing from hardware interrupt context or with hardware interrupts
  * disabled.