diff options
| author |   Jiri Pirko <jiri@mellanox.com> | 2015-12-03 12:12:15 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-12-03 11:49:26 -0500 |
| commit | 04d482660a07039fc4e9a42bb3517db236d98f96 (patch) | |
| tree | 416983aba87723dd09de034c5a13c74a092dd1a8 /include/linux | |
| parent | bonding: fill-up LAG changeupper info struct and pass it along (diff) | |
| download | linux-dev-04d482660a07039fc4e9a42bb3517db236d98f96.tar.xz linux-dev-04d482660a07039fc4e9a42bb3517db236d98f96.zip | |
net: introduce change lower state notifier
When lower device like bonding slave, team/bridge port, etc changes its
state, it is useful for others to notice this change. Currently this is
implemented specificly for bonding as NETDEV_BONDING_INFO notifier. This
patch aims to replace this specific usage and make this more generic to
be used for all upper-lower devices.
Introduce NETDEV_CHANGELOWERSTATE netdev notifier type and
netdev_lower_state_changed() helper.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 3ab90ea0ed03..ad69f237aa78 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2158,6 +2158,7 @@ struct netdev_lag_upper_info { #define NETDEV_CHANGEINFODATA 0x0018 #define NETDEV_BONDING_INFO 0x0019 #define NETDEV_PRECHANGEUPPER 0x001A +#define NETDEV_CHANGELOWERSTATE 0x001B int register_netdevice_notifier(struct notifier_block *nb); int unregister_netdevice_notifier(struct notifier_block *nb); @@ -2179,6 +2180,11 @@ struct netdev_notifier_changeupper_info { void *upper_info; /* upper dev info */ }; +struct netdev_notifier_changelowerstate_info { + struct netdev_notifier_info info; /* must be first */ + void *lower_state_info; /* is lower dev state */ +}; + static inline void netdev_notifier_info_init(struct netdev_notifier_info *info, struct net_device *dev) { @@ -3640,6 +3646,8 @@ void netdev_upper_dev_unlink(struct net_device *dev, void netdev_adjacent_rename_links(struct net_device *dev, char *oldname); void *netdev_lower_dev_get_private(struct net_device *dev, struct net_device *lower_dev); +void netdev_lower_state_changed(struct net_device *lower_dev, + void *lower_state_info); /* RSS keys are 40 or 52 bytes long */ #define NETDEV_RSS_KEY_LEN 52 |