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-rw-r--r--drivers/net/ethernet/mellanox/mlx4/port.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 609e0ec14ce..163a314c148 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -65,7 +65,7 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
table->entries[i] = 0;
table->refs[i] = 0;
}
- table->max = 1 << dev->caps.log_num_vlans;
+ table->max = (1 << dev->caps.log_num_vlans) - MLX4_VLAN_REGULAR;
table->total = 0;
}
@@ -354,6 +354,13 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
int free = -1;
mutex_lock(&table->mutex);
+
+ if (table->total == table->max) {
+ /* No free vlan entries */
+ err = -ENOSPC;
+ goto out;
+ }
+
for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
if (free < 0 && (table->refs[i] == 0)) {
free = i;
@@ -375,12 +382,6 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
goto out;
}
- if (table->total == table->max) {
- /* No free vlan entries */
- err = -ENOSPC;
- goto out;
- }
-
/* Register new MAC */
table->refs[free] = 1;
table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);