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path: root/drivers/net/dsa/mv88e6xxx
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Diffstat (limited to 'drivers/net/dsa/mv88e6xxx')
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c6
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.h5
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index dcb1726b68cc..91286d7b12c7 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -5385,9 +5385,13 @@ static bool mv88e6xxx_lag_can_offload(struct dsa_switch *ds,
struct net_device *lag,
struct netdev_lag_upper_info *info)
{
+ struct mv88e6xxx_chip *chip = ds->priv;
struct dsa_port *dp;
int id, members = 0;
+ if (!mv88e6xxx_has_lag(chip))
+ return false;
+
id = dsa_lag_id(ds->dst, lag);
if (id < 0 || id >= ds->num_lag_ids)
return false;
@@ -5727,7 +5731,7 @@ static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
* 5-bit port mode, which we do not support. 640k^W16 ought to
* be enough for anyone.
*/
- ds->num_lag_ids = 16;
+ ds->num_lag_ids = mv88e6xxx_has_lag(chip) ? 16 : 0;
dev_set_drvdata(dev, ds);
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 3543055bcb51..788b3f585ef3 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -662,6 +662,11 @@ static inline bool mv88e6xxx_has_pvt(struct mv88e6xxx_chip *chip)
return chip->info->pvt;
}
+static inline bool mv88e6xxx_has_lag(struct mv88e6xxx_chip *chip)
+{
+ return !!chip->info->global2_addr;
+}
+
static inline unsigned int mv88e6xxx_num_databases(struct mv88e6xxx_chip *chip)
{
return chip->info->num_databases;