1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 // Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
3
4 #include "act.h"
5 #include "en/tc_priv.h"
6
7 static bool
tc_act_can_offload_trap(struct mlx5e_tc_act_parse_state * parse_state,const struct flow_action_entry * act,int act_index,struct mlx5_flow_attr * attr)8 tc_act_can_offload_trap(struct mlx5e_tc_act_parse_state *parse_state,
9 const struct flow_action_entry *act,
10 int act_index,
11 struct mlx5_flow_attr *attr)
12 {
13 struct netlink_ext_ack *extack = parse_state->extack;
14
15 if (parse_state->flow_action->num_entries != 1) {
16 NL_SET_ERR_MSG_MOD(extack, "action trap is supported as a sole action only");
17 return false;
18 }
19
20 return true;
21 }
22
23 static int
tc_act_parse_trap(struct mlx5e_tc_act_parse_state * parse_state,const struct flow_action_entry * act,struct mlx5e_priv * priv,struct mlx5_flow_attr * attr)24 tc_act_parse_trap(struct mlx5e_tc_act_parse_state *parse_state,
25 const struct flow_action_entry *act,
26 struct mlx5e_priv *priv,
27 struct mlx5_flow_attr *attr)
28 {
29 attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
30 attr->flags |= MLX5_ATTR_FLAG_SLOW_PATH;
31
32 return 0;
33 }
34
35 struct mlx5e_tc_act mlx5e_tc_act_trap = {
36 .can_offload = tc_act_can_offload_trap,
37 .parse_action = tc_act_parse_trap,
38 };
39