net/mlx5e: CT: Fix freeing ct_label mapping

Add missing mapping remove call when removing ct rule,
as the mapping was allocated when ct rule was adding with ct_label.
Also there is a missing mapping remove call in error flow.

Fixes: 54b154ecfb8c ("net/mlx5e: CT: Map 128 bits labels to 32 bit map ID")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
index c6bc922..bc5f72e 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
@@ -699,6 +699,7 @@ mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv,
 err_rule:
        mlx5e_mod_hdr_detach(ct_priv->esw->dev,
                             &esw->offloads.mod_hdr, zone_rule->mh);
+       mapping_remove(ct_priv->labels_mapping, attr->ct_attr.ct_labels_id);
 err_mod_hdr:
        kfree(spec);
        return err;
@@ -958,12 +959,22 @@ mlx5_tc_ct_add_no_trk_match(struct mlx5e_priv *priv,
        return 0;
 }
 
+void mlx5_tc_ct_match_del(struct mlx5e_priv *priv, struct mlx5_ct_attr *ct_attr)
+{
+       struct mlx5_tc_ct_priv *ct_priv = mlx5_tc_ct_get_ct_priv(priv);
+
+       if (!ct_priv || !ct_attr->ct_labels_id)
+               return;
+
+       mapping_remove(ct_priv->labels_mapping, ct_attr->ct_labels_id);
+}
+
 int
-mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
-                      struct mlx5_flow_spec *spec,
-                      struct flow_cls_offload *f,
-                      struct mlx5_ct_attr *ct_attr,
-                      struct netlink_ext_ack *extack)
+mlx5_tc_ct_match_add(struct mlx5e_priv *priv,
+                    struct mlx5_flow_spec *spec,
+                    struct flow_cls_offload *f,
+                    struct mlx5_ct_attr *ct_attr,
+                    struct netlink_ext_ack *extack)
 {
        struct mlx5_tc_ct_priv *ct_priv = mlx5_tc_ct_get_ct_priv(priv);
        struct flow_rule *rule = flow_cls_offload_flow_rule(f);

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
index 3baef91..708c216 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h
@@ -87,12 +87,15 @@ mlx5_tc_ct_init(struct mlx5_rep_uplink_priv *uplink_priv);
 void
 mlx5_tc_ct_clean(struct mlx5_rep_uplink_priv *uplink_priv);
 
+void
+mlx5_tc_ct_match_del(struct mlx5e_priv *priv, struct mlx5_ct_attr *ct_attr);
+
 int
-mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
-                      struct mlx5_flow_spec *spec,
-                      struct flow_cls_offload *f,
-                      struct mlx5_ct_attr *ct_attr,
-                      struct netlink_ext_ack *extack);
+mlx5_tc_ct_match_add(struct mlx5e_priv *priv,
+                    struct mlx5_flow_spec *spec,
+                    struct flow_cls_offload *f,
+                    struct mlx5_ct_attr *ct_attr,
+                    struct netlink_ext_ack *extack);
 int
 mlx5_tc_ct_add_no_trk_match(struct mlx5e_priv *priv,
                            struct mlx5_flow_spec *spec);
@@ -130,12 +133,15 @@ mlx5_tc_ct_clean(struct mlx5_rep_uplink_priv *uplink_priv)
 {
 }
 
+static inline void
+mlx5_tc_ct_match_del(struct mlx5e_priv *priv, struct mlx5_ct_attr *ct_attr) {}
+
 static inline int
-mlx5_tc_ct_parse_match(struct mlx5e_priv *priv,
-                      struct mlx5_flow_spec *spec,
-                      struct flow_cls_offload *f,
-                      struct mlx5_ct_attr *ct_attr,
-                      struct netlink_ext_ack *extack)
+mlx5_tc_ct_match_add(struct mlx5e_priv *priv,
+                    struct mlx5_flow_spec *spec,
+                    struct flow_cls_offload *f,
+                    struct mlx5_ct_attr *ct_attr,
+                    struct netlink_ext_ack *extack)
 {
        struct flow_rule *rule = flow_cls_offload_flow_rule(f);
 

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 7be282d..bf0c6f0 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1312,6 +1312,8 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv,
                }
        kvfree(attr->parse_attr);
 
+       mlx5_tc_ct_match_del(priv, &flow->esw_attr->ct_attr);
+
        if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
                mlx5e_detach_mod_hdr(priv, flow);
 
@@ -4399,8 +4401,8 @@ __mlx5e_add_fdb_flow(struct mlx5e_priv *priv,
                goto err_free;
 
        /* actions validation depends on parsing the ct matches first */
-       err = mlx5_tc_ct_parse_match(priv, &parse_attr->spec, f,
-                                    &flow->esw_attr->ct_attr, extack);
+       err = mlx5_tc_ct_match_add(priv, &parse_attr->spec, f,
+                                  &flow->esw_attr->ct_attr, extack);
        if (err)
                goto err_free;