net/mlx5e: Err if asked to mirror a goto chain tc eswitch rule

Currently we are not supporting this and not err-ing on that either.

For now, just err if asked to do that.

Fixes: bf07aa730a04 ('net/mlx5e: Support offloading tc priorities and chains for eswitch flows')
Signed-off-by: Or Gerlitz <[email protected]>
Reported-by: Eli Britstein <[email protected]>
Reviewed-by: Eli Britstein <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index fca6f4132c91a51ac2a03eaaf64b0bbc5b6ff2c3..1f01c905a04208e834cb685bb18e85d41c2e83d3 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2966,8 +2966,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
                                NL_SET_ERR_MSG(extack, "Requested destination chain is out of supported range");
                                return -EOPNOTSUPP;
                        }
-                       action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
-                                 MLX5_FLOW_CONTEXT_ACTION_COUNT;
+                       action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
                        attr->dest_chain = dest_chain;
 
                        continue;
@@ -2980,6 +2979,14 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
        if (!actions_match_supported(priv, exts, parse_attr, flow, extack))
                return -EOPNOTSUPP;
 
+       if (attr->dest_chain) {
+               if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
+                       NL_SET_ERR_MSG(extack, "Mirroring goto chain rules isn't supported");
+                       return -EOPNOTSUPP;
+               }
+               attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
+       }
+
        if (attr->mirror_count > 0 && !mlx5_esw_has_fwd_fdb(priv->mdev)) {
                NL_SET_ERR_MSG_MOD(extack,
                                   "current firmware doesn't support split rule for port mirroring");