diff options
| author | Scott Feldman <sfeldma@gmail.com> | 2015-07-18 18:24:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-20 18:32:44 -0700 |
| commit | 1a3b2ec93d4277b121979321b4024b438cb09504 (patch) | |
| tree | c57bf0a7563a0cfcdcda3c08ca90591c15d21f0a /include/net/switchdev.h | |
| parent | d754f98b502ad9a8c7570d494e1eaa0e6bc0350c (diff) | |
| download | lwn-1a3b2ec93d4277b121979321b4024b438cb09504.tar.gz lwn-1a3b2ec93d4277b121979321b4024b438cb09504.zip | |
switchdev: add offload_fwd_mark generator helper
skb->offload_fwd_mark and dev->offload_fwd_mark are 32-bit and should be
unique for device and may even be unique for a sub-set of ports within
device, so add switchdev helper function to generate unique marks based on
port's switch ID and group_ifindex. group_ifindex would typically be the
container dev's ifindex, such as the bridge's ifindex.
The generator uses a global hash table to store offload_fwd_marks hashed by
{switch ID, group_ifindex} key.
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/switchdev.h')
| -rw-r--r-- | include/net/switchdev.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/switchdev.h b/include/net/switchdev.h index d5671f118bfc..89da8934519b 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h @@ -157,6 +157,9 @@ int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *filter_dev, int idx); +void switchdev_port_fwd_mark_set(struct net_device *dev, + struct net_device *group_dev, + bool joining); #else @@ -271,6 +274,12 @@ static inline int switchdev_port_fdb_dump(struct sk_buff *skb, return -EOPNOTSUPP; } +static inline void switchdev_port_fwd_mark_set(struct net_device *dev, + struct net_device *group_dev, + bool joining) +{ +} + #endif #endif /* _LINUX_SWITCHDEV_H_ */ |