Commit 82dd4332 authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller

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: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bfd8d977
...@@ -999,6 +999,7 @@ void __br_set_forward_delay(struct net_bridge *br, unsigned long t); ...@@ -999,6 +999,7 @@ 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 __set_ageing_time(struct net_device *dev, unsigned long t);
int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time);
......
...@@ -562,6 +562,24 @@ int br_set_max_age(struct net_bridge *br, unsigned long val) ...@@ -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 /* Set time interval that dynamic forwarding entries live
* For pure software bridge, allow values outside the 802.1 * For pure software bridge, allow values outside the 802.1
* standard specification for special cases: * standard specification for special cases:
...@@ -572,17 +590,11 @@ int br_set_max_age(struct net_bridge *br, unsigned long val) ...@@ -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) 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); unsigned long t = clock_t_to_jiffies(ageing_time);
int err; int err;
err = switchdev_port_attr_set(br->dev, &attr); err = __set_ageing_time(br->dev, t);
if (err && err != -EOPNOTSUPP) if (err)
return err; return err;
br->ageing_time = t; br->ageing_time = t;
......
...@@ -36,12 +36,6 @@ static inline port_id br_make_port_id(__u8 priority, __u16 port_no) ...@@ -36,12 +36,6 @@ static inline port_id br_make_port_id(__u8 priority, __u16 port_no)
/* called under bridge lock */ /* called under bridge lock */
void br_init_port(struct net_bridge_port *p) void br_init_port(struct net_bridge_port *p)
{ {
struct switchdev_attr attr = {
.orig_dev = p->dev,
.id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
.flags = SWITCHDEV_F_SKIP_EOPNOTSUPP | SWITCHDEV_F_DEFER,
.u.ageing_time = jiffies_to_clock_t(p->br->ageing_time),
};
int err; int err;
p->port_id = br_make_port_id(p->priority, p->port_no); p->port_id = br_make_port_id(p->priority, p->port_no);
...@@ -50,9 +44,9 @@ void br_init_port(struct net_bridge_port *p) ...@@ -50,9 +44,9 @@ void br_init_port(struct net_bridge_port *p)
p->topology_change_ack = 0; p->topology_change_ack = 0;
p->config_pending = 0; p->config_pending = 0;
err = switchdev_port_attr_set(p->dev, &attr); err = __set_ageing_time(p->dev, p->br->ageing_time);
if (err && err != -EOPNOTSUPP) if (err)
netdev_err(p->dev, "failed to set HW ageing time\n"); netdev_err(p->dev, "failed to offload ageing time\n");
} }
/* NO locks held */ /* NO locks held */
......
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