UPSTREAM: phy: Add set_mode callback

[firefly-linux-kernel-4.4.55.git] / include / net / l3mdev.h

diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h
index 44a19a1711048edf24e56c4f298f86a7cdd77789..5689a0c749f76cd7ce5810b6ac165e43ddb0b59d 100644 (file)
--- a/include/net/l3mdev.h
+++ b/include/net/l3mdev.h
@@ -19,14 +19,22 @@
  * @l3mdev_get_rtable: Get cached IPv4 rtable (dst_entry) for device
  *
  * @l3mdev_get_saddr: Get source address for a flow
+ *
+ * @l3mdev_get_rt6_dst: Get cached IPv6 rt6_info (dst_entry) for device
  */
 
 struct l3mdev_ops {
        u32             (*l3mdev_fib_table)(const struct net_device *dev);
+
+       /* IPv4 ops */
        struct rtable * (*l3mdev_get_rtable)(const struct net_device *dev,
                                             const struct flowi4 *fl4);
-       void            (*l3mdev_get_saddr)(struct net_device *dev,
+       int             (*l3mdev_get_saddr)(struct net_device *dev,
                                            struct flowi4 *fl4);
+
+       /* IPv6 ops */
+       struct dst_entry * (*l3mdev_get_rt6_dst)(const struct net_device *dev,
+                                                const struct flowi6 *fl6);
 };
 
 #ifdef CONFIG_NET_L3_MASTER_DEV
@@ -104,10 +112,11 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex)
        return rc;
 }
 
-static inline void l3mdev_get_saddr(struct net *net, int ifindex,
-                                   struct flowi4 *fl4)
+static inline int l3mdev_get_saddr(struct net *net, int ifindex,
+                                  struct flowi4 *fl4)
 {
        struct net_device *dev;
+       int rc = 0;
 
        if (ifindex) {
 
@@ -116,11 +125,38 @@ static inline void l3mdev_get_saddr(struct net *net, int ifindex,
                dev = dev_get_by_index_rcu(net, ifindex);
                if (dev && netif_is_l3_master(dev) &&
                    dev->l3mdev_ops->l3mdev_get_saddr) {
-                       dev->l3mdev_ops->l3mdev_get_saddr(dev, fl4);
+                       rc = dev->l3mdev_ops->l3mdev_get_saddr(dev, fl4);
                }
 
                rcu_read_unlock();
        }
+
+       return rc;
+}
+
+static inline struct dst_entry *l3mdev_get_rt6_dst(const struct net_device *dev,
+                                                  const struct flowi6 *fl6)
+{
+       if (netif_is_l3_master(dev) && dev->l3mdev_ops->l3mdev_get_rt6_dst)
+               return dev->l3mdev_ops->l3mdev_get_rt6_dst(dev, fl6);
+
+       return NULL;
+}
+
+static inline
+struct dst_entry *l3mdev_rt6_dst_by_oif(struct net *net,
+                                       const struct flowi6 *fl6)
+{
+       struct dst_entry *dst = NULL;
+       struct net_device *dev;
+
+       dev = dev_get_by_index(net, fl6->flowi6_oif);
+       if (dev) {
+               dst = l3mdev_get_rt6_dst(dev, fl6);
+               dev_put(dev);
+       }
+
+       return dst;
 }
 
 #else
@@ -167,9 +203,23 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex)
        return false;
 }
 
-static inline void l3mdev_get_saddr(struct net *net, int ifindex,
-                                   struct flowi4 *fl4)
+static inline int l3mdev_get_saddr(struct net *net, int ifindex,
+                                  struct flowi4 *fl4)
+{
+       return 0;
+}
+
+static inline
+struct dst_entry *l3mdev_get_rt6_dst(const struct net_device *dev,
+                                    const struct flowi6 *fl6)
+{
+       return NULL;
+}
+static inline
+struct dst_entry *l3mdev_rt6_dst_by_oif(struct net *net,
+                                       const struct flowi6 *fl6)
 {
+       return NULL;
 }
 #endif