net/mlx5e: Get the number of offloaded TC rules from the correct table

As we keep the offloaded TC rules for NIC and e-switch in two different
places, make sure to return the number of offloaded flows according
to the use-case and not blindly from the priv.

Fixes: 655dc3d2 ('net/mlx5e: Use shared table for offloaded TC eswitch flows')
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Reported-by: NPaul Blakey <paulb@mellanox.com>
Reviewed-by: NPaul Blakey <paulb@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -2876,3 +2876,10 @@ void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht)
 {
 	rhashtable_free_and_destroy(tc_ht, _mlx5e_tc_del_flow, NULL);
 }
+
+int mlx5e_tc_num_filters(struct mlx5e_priv *priv)
+{
+	struct rhashtable *tc_ht = get_tc_ht(priv);
+
+	return atomic_read(&tc_ht->nelems);
+}

drivers/net/ethernet/mellanox/mlx5/core/en_tc.h

@@ -68,10 +68,7 @@ void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv,
 struct mlx5e_neigh_hash_entry;
 void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe);
 
-static inline int mlx5e_tc_num_filters(struct mlx5e_priv *priv)
-{
-	return atomic_read(&priv->fs.tc.ht.nelems);
-}
+int mlx5e_tc_num_filters(struct mlx5e_priv *priv);
 
 #else /* CONFIG_MLX5_ESWITCH */
 static inline int  mlx5e_tc_nic_init(struct mlx5e_priv *priv) { return 0; }