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bridge: push bridge setting ageing_time down to switchdev

Browse source 
Use SWITCHDEV_F_SKIP_EOPNOTSUPP to skip over ports in bridge that don't
support setting ageing_time (or setting bridge attrs in general).

If push fails, don't update ageing_time in bridge and return err to user.

If push succeeds, update ageing_time in bridge and run gc_timer now to
recalabrate when to run gc_timer next, based on new ageing_time.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Scott Feldman 2015-10-08 19:23:19 -07:00 • committed by David S. Miller
parent 464314ea6c
commit c62987bbd8
5 changed files with 29 additions and 7 deletions
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3
net/bridge/br_ioctl.c
View file

@ -200,8 +200,7 @@ static int old_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN)) if (!ns_capable(dev_net(dev)->user_ns, CAP_NET_ADMIN))
return -EPERM; return -EPERM;
br->ageing_time = clock_t_to_jiffies(args[1]); return br_set_ageing_time(br, args[1]);
return 0;
case BRCTL_GET_PORT_INFO: case BRCTL_GET_PORT_INFO:
{ {

6
net/bridge/br_netlink.c
View file

@ -870,9 +870,9 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
} }
if (data[IFLA_BR_AGEING_TIME]) { if (data[IFLA_BR_AGEING_TIME]) {
u32 ageing_time = nla_get_u32(data[IFLA_BR_AGEING_TIME]); err = br_set_ageing_time(br, nla_get_u32(data[IFLA_BR_AGEING_TIME]));
if (err)
br->ageing_time = clock_t_to_jiffies(ageing_time); return err;
} }
if (data[IFLA_BR_STP_STATE]) { if (data[IFLA_BR_STP_STATE]) {

1
net/bridge/br_private.h
View file

@ -882,6 +882,7 @@ void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
int br_set_forward_delay(struct net_bridge *br, unsigned long x); int br_set_forward_delay(struct net_bridge *br, unsigned long x);
int br_set_hello_time(struct net_bridge *br, unsigned long x); int br_set_hello_time(struct net_bridge *br, unsigned long x);
int br_set_max_age(struct net_bridge *br, unsigned long x); int br_set_max_age(struct net_bridge *br, unsigned long x);
int br_set_ageing_time(struct net_bridge *br, u32 ageing_time);
/* br_stp_if.c */ /* br_stp_if.c */

23
net/bridge/br_stp.c
View file

@ -566,6 +566,29 @@ int br_set_max_age(struct net_bridge *br, unsigned long val)
} }
int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
{
struct switchdev_attr attr = {
.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;
if (t < BR_MIN_AGEING_TIME || t > BR_MAX_AGEING_TIME)
return -ERANGE;
err = switchdev_port_attr_set(br->dev, &attr);
if (err)
return err;
br->ageing_time = t;
mod_timer(&br->gc_timer, jiffies);
return 0;
}
void __br_set_forward_delay(struct net_bridge *br, unsigned long t) void __br_set_forward_delay(struct net_bridge *br, unsigned long t)
{ {
br->bridge_forward_delay = t; br->bridge_forward_delay = t;

3
net/bridge/br_sysfs_br.c
View file

@ -102,8 +102,7 @@ static ssize_t ageing_time_show(struct device *d,
static int set_ageing_time(struct net_bridge *br, unsigned long val) static int set_ageing_time(struct net_bridge *br, unsigned long val)
{ {
br->ageing_time = clock_t_to_jiffies(val); return br_set_ageing_time(br, val);
return 0;
} }
static ssize_t ageing_time_store(struct device *d, static ssize_t ageing_time_store(struct device *d,