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Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index c599e4782d4..0e1b92a0c1e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -891,6 +891,14 @@ struct netdev_fcoe_hbainfo {
* int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh)
* int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
* struct net_device *dev)
+ *
+ * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
+ * Called to change device carrier. Soft-devices (like dummy, team, etc)
+ * which do not represent real hardware may define this to allow their
+ * userspace components to manage their virtual carrier state. Devices
+ * that determine carrier state from physical hardware properties (eg
+ * network cables) or protocol-dependent mechanisms (eg
+ * USB_CDC_NOTIFY_NETWORK_CONNECTION) should NOT implement this function.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1008,6 +1016,8 @@ struct net_device_ops {
int (*ndo_bridge_getlink)(struct sk_buff *skb,
u32 pid, u32 seq,
struct net_device *dev);
+ int (*ndo_change_carrier)(struct net_device *dev,
+ bool new_carrier);
};
/*
@@ -2194,6 +2204,8 @@ extern int dev_set_mtu(struct net_device *, int);
extern void dev_set_group(struct net_device *, int);
extern int dev_set_mac_address(struct net_device *,
struct sockaddr *);
+extern int dev_change_carrier(struct net_device *,
+ bool new_carrier);
extern int dev_hard_start_xmit(struct sk_buff *skb,
struct net_device *dev,
struct netdev_queue *txq);