diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2016-12-10 13:44:27 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-10 21:27:23 -0500 |
| commit | 82dd4332aa07843f7444c55bc17fee9bd76aa0f7 (patch) | |
| tree | b84e1515b58c33c76e6ea452a955e28e43da6736 /net/bridge/br_stp.c | |
| parent | bfd8d977af2390e646d4a5df8e88c1d7a1ae63d9 (diff) | |
net: bridge: add helper to offload ageing time
The SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME switchdev attr is actually set
when initializing a bridge port, and when configuring the bridge ageing
time from ioctl/netlink/sysfs.
Add a __set_ageing_time helper to offload the ageing time to physical
switches, and add the SWITCHDEV_F_DEFER flag since it can be called
under bridge lock.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_stp.c')
| -rw-r--r-- | net/bridge/br_stp.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 9258b8ef14ff..6ebe2a021e3c 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -562,6 +562,24 @@ int br_set_max_age(struct net_bridge *br, unsigned long val) } +/* called under bridge lock */ +int __set_ageing_time(struct net_device *dev, unsigned long t) +{ + struct switchdev_attr attr = { + .orig_dev = dev, + .id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, + .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP | SWITCHDEV_F_DEFER, + .u.ageing_time = jiffies_to_clock_t(t), + }; + int err; + + err = switchdev_port_attr_set(dev, &attr); + if (err && err != -EOPNOTSUPP) + return err; + + return 0; +} + /* Set time interval that dynamic forwarding entries live * For pure software bridge, allow values outside the 802.1 * standard specification for special cases: @@ -572,17 +590,11 @@ int br_set_max_age(struct net_bridge *br, unsigned long val) */ int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time) { - struct switchdev_attr attr = { - .orig_dev = br->dev, - .id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME, - .flags = SWITCHDEV_F_SKIP_EOPNOTSUPP, - .u.ageing_time = ageing_time, - }; unsigned long t = clock_t_to_jiffies(ageing_time); int err; - err = switchdev_port_attr_set(br->dev, &attr); - if (err && err != -EOPNOTSUPP) + err = __set_ageing_time(br->dev, t); + if (err) return err; br->ageing_time = t; |