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
tc_act_parse_ct(struct mlx5e_tc_act_parse_state * parse_state,const struct flow_action_entry * act,struct mlx5e_priv * priv,struct mlx5_flow_attr * attr)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
tc_act_post_parse_ct(struct mlx5e_tc_act_parse_state * parse_state,struct mlx5e_priv * priv,struct mlx5_flow_attr * attr)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
tc_act_is_multi_table_act_ct(struct mlx5e_priv * priv,const struct flow_action_entry * act,struct mlx5_flow_attr * attr)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
tc_act_is_missable_ct(const struct flow_action_entry * act)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