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 #include "en/tc_ct.h"
7 
8 static int
9 tc_act_parse_ct(struct mlx5e_tc_act_parse_state *parse_state,
10 		const struct flow_action_entry *act,
11 		struct mlx5e_priv *priv,
12 		struct mlx5_flow_attr *attr)
13 {
14 	int err;
15 
16 	err = mlx5_tc_ct_parse_action(parse_state->ct_priv, attr, act, parse_state->extack);
17 	if (err)
18 		return err;
19 
20 	if (mlx5e_is_eswitch_flow(parse_state->flow)) {
21 		attr->esw_attr->split_count = attr->esw_attr->out_count;
22 		parse_state->if_count = 0;
23 	}
24 
25 	attr->flags |= MLX5_ATTR_FLAG_CT;
26 
27 	return 0;
28 }
29 
30 static int
31 tc_act_post_parse_ct(struct mlx5e_tc_act_parse_state *parse_state,
32 		     struct mlx5e_priv *priv,
33 		     struct mlx5_flow_attr *attr)
34 {
35 	if (!(attr->flags & MLX5_ATTR_FLAG_CT))
36 		return 0;
37 
38 	return mlx5_tc_ct_flow_offload(parse_state->ct_priv, attr);
39 }
40 
41 static bool
42 tc_act_is_multi_table_act_ct(struct mlx5e_priv *priv,
43 			     const struct flow_action_entry *act,
44 			     struct mlx5_flow_attr *attr)
45 {
46 	if (act->ct.action & TCA_CT_ACT_CLEAR)
47 		return false;
48 
49 	return true;
50 }
51 
52 static bool
53 tc_act_is_missable_ct(const struct flow_action_entry *act)
54 {
55 	return !(act->ct.action & TCA_CT_ACT_CLEAR);
56 }
57 
58 struct mlx5e_tc_act mlx5e_tc_act_ct = {
59 	.parse_action = tc_act_parse_ct,
60 	.post_parse = tc_act_post_parse_ct,
61 	.is_multi_table_act = tc_act_is_multi_table_act_ct,
62 	.is_missable = tc_act_is_missable_ct,
63 };
64 
65