1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. */
3
4#include "en_tc.h"
5#include "en/tc_ct.h"
6#include "en/tc/ct_fs.h"
7
8#define ct_dbg(fmt, args...)\
9	netdev_dbg(fs->netdev, "ct_fs_dmfs debug: " fmt "\n", ##args)
10
11struct mlx5_ct_fs_dmfs_rule {
12	struct mlx5_ct_fs_rule fs_rule;
13	struct mlx5_flow_handle *rule;
14	struct mlx5_flow_attr *attr;
15};
16
17static int
18mlx5_ct_fs_dmfs_init(struct mlx5_ct_fs *fs, struct mlx5_flow_table *ct,
19		     struct mlx5_flow_table *ct_nat, struct mlx5_flow_table *post_ct)
20{
21	return 0;
22}
23
24static void
25mlx5_ct_fs_dmfs_destroy(struct mlx5_ct_fs *fs)
26{
27}
28
29static struct mlx5_ct_fs_rule *
30mlx5_ct_fs_dmfs_ct_rule_add(struct mlx5_ct_fs *fs, struct mlx5_flow_spec *spec,
31			    struct mlx5_flow_attr *attr, struct flow_rule *flow_rule)
32{
33	struct mlx5e_priv *priv = netdev_priv(fs->netdev);
34	struct mlx5_ct_fs_dmfs_rule *dmfs_rule;
35	int err;
36
37	dmfs_rule = kzalloc(sizeof(*dmfs_rule), GFP_KERNEL);
38	if (!dmfs_rule)
39		return ERR_PTR(-ENOMEM);
40
41	dmfs_rule->rule = mlx5_tc_rule_insert(priv, spec, attr);
42	if (IS_ERR(dmfs_rule->rule)) {
43		err = PTR_ERR(dmfs_rule->rule);
44		ct_dbg("Failed to add ct entry fs rule");
45		goto err_insert;
46	}
47
48	dmfs_rule->attr = attr;
49
50	return &dmfs_rule->fs_rule;
51
52err_insert:
53	kfree(dmfs_rule);
54	return ERR_PTR(err);
55}
56
57static void
58mlx5_ct_fs_dmfs_ct_rule_del(struct mlx5_ct_fs *fs, struct mlx5_ct_fs_rule *fs_rule)
59{
60	struct mlx5_ct_fs_dmfs_rule *dmfs_rule = container_of(fs_rule,
61							      struct mlx5_ct_fs_dmfs_rule,
62							      fs_rule);
63
64	mlx5_tc_rule_delete(netdev_priv(fs->netdev), dmfs_rule->rule, dmfs_rule->attr);
65	kfree(dmfs_rule);
66}
67
68static struct mlx5_ct_fs_ops dmfs_ops = {
69	.ct_rule_add = mlx5_ct_fs_dmfs_ct_rule_add,
70	.ct_rule_del = mlx5_ct_fs_dmfs_ct_rule_del,
71
72	.init = mlx5_ct_fs_dmfs_init,
73	.destroy = mlx5_ct_fs_dmfs_destroy,
74};
75
76struct mlx5_ct_fs_ops *mlx5_ct_fs_dmfs_ops_get(void)
77{
78	return &dmfs_ops;
79}
80