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-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c2
-rw-r--r--include/net/dsa.h4
-rw-r--r--net/dsa/slave.c12
3 files changed, 14 insertions, 4 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 3354f99df378..2bca297d9296 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4253,6 +4253,8 @@ static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
ds->priv = chip;
ds->ops = &mv88e6xxx_switch_ops;
+ ds->ageing_time_min = chip->info->age_time_coeff;
+ ds->ageing_time_max = chip->info->age_time_coeff * U8_MAX;
dev_set_drvdata(dev, ds);
diff --git a/include/net/dsa.h b/include/net/dsa.h
index bf0e42c2a6f7..e42897fd7a96 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -233,6 +233,10 @@ struct dsa_switch {
u32 phys_mii_mask;
struct mii_bus *slave_mii_bus;
+ /* Ageing Time limits in msecs */
+ unsigned int ageing_time_min;
+ unsigned int ageing_time_max;
+
/* Dynamically allocated ports, keep last */
size_t num_ports;
struct dsa_port ports[];
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index c34872e1febc..78128acfbf63 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -419,8 +419,8 @@ static int dsa_slave_vlan_filtering(struct net_device *dev,
return 0;
}
-static int dsa_fastest_ageing_time(struct dsa_switch *ds,
- unsigned int ageing_time)
+static unsigned int dsa_fastest_ageing_time(struct dsa_switch *ds,
+ unsigned int ageing_time)
{
int i;
@@ -443,9 +443,13 @@ static int dsa_slave_ageing_time(struct net_device *dev,
unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time);
unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
- /* bridge skips -EOPNOTSUPP, so skip the prepare phase */
- if (switchdev_trans_ph_prepare(trans))
+ if (switchdev_trans_ph_prepare(trans)) {
+ if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
+ return -ERANGE;
+ if (ds->ageing_time_max && ageing_time > ds->ageing_time_max)
+ return -ERANGE;
return 0;
+ }
/* Keep the fastest ageing time in case of multiple bridges */
p->dp->ageing_time = ageing_time;