aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum1_acl_tcam.c
blob: 3a636f753607b1c6dd3b9d3d7c2ed13af8f4e780 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */

#include <linux/kernel.h>
#include <linux/slab.h>

#include "reg.h"
#include "core.h"
#include "spectrum.h"
#include "spectrum_acl_tcam.h"

struct mlxsw_sp1_acl_tcam_region {
	struct mlxsw_sp_acl_ctcam_region cregion;
	struct mlxsw_sp_acl_tcam_region *region;
	struct {
		struct mlxsw_sp_acl_ctcam_chunk cchunk;
		struct mlxsw_sp_acl_ctcam_entry centry;
		struct mlxsw_sp_acl_rule_info *rulei;
	} catchall;
};

struct mlxsw_sp1_acl_tcam_chunk {
	struct mlxsw_sp_acl_ctcam_chunk cchunk;
};

struct mlxsw_sp1_acl_tcam_entry {
	struct mlxsw_sp_acl_ctcam_entry centry;
};

static int
mlxsw_sp1_acl_ctcam_region_entry_insert(struct mlxsw_sp_acl_ctcam_region *cregion,
					struct mlxsw_sp_acl_ctcam_entry *centry,
					const char *mask)
{
	return 0;
}

static void
mlxsw_sp1_acl_ctcam_region_entry_remove(struct mlxsw_sp_acl_ctcam_region *cregion,
					struct mlxsw_sp_acl_ctcam_entry *centry)
{
}

static const struct mlxsw_sp_acl_ctcam_region_ops
mlxsw_sp1_acl_ctcam_region_ops = {
	.entry_insert = mlxsw_sp1_acl_ctcam_region_entry_insert,
	.entry_remove = mlxsw_sp1_acl_ctcam_region_entry_remove,
};

static int mlxsw_sp1_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv,
				   struct mlxsw_sp_acl_tcam *tcam)
{
	return 0;
}

static void mlxsw_sp1_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv)
{
}

static int
mlxsw_sp1_acl_ctcam_region_catchall_add(struct mlxsw_sp *mlxsw_sp,
					struct mlxsw_sp1_acl_tcam_region *region)
{
	struct mlxsw_sp_acl_rule_info *rulei;
	int err;

	mlxsw_sp_acl_ctcam_chunk_init(&region->cregion,
				      &region->catchall.cchunk,
				      MLXSW_SP_ACL_TCAM_CATCHALL_PRIO);
	rulei = mlxsw_sp_acl_rulei_create(mlxsw_sp->acl, NULL);
	if (IS_ERR(rulei)) {
		err = PTR_ERR(rulei);
		goto err_rulei_create;
	}
	err = mlxsw_sp_acl_rulei_act_continue(rulei);
	if (WARN_ON(err))
		goto err_rulei_act_continue;
	err = mlxsw_sp_acl_rulei_commit(rulei);
	if (err)
		goto err_rulei_commit;
	err = mlxsw_sp_acl_ctcam_entry_add(mlxsw_sp, &region->cregion,
					   &region->catchall.cchunk,
					   &region->catchall.centry,
					   rulei, false);
	if (err)
		goto err_entry_add;
	region->catchall.rulei = rulei;
	return 0;

err_entry_add:
err_rulei_commit:
err_rulei_act_continue:
	mlxsw_sp_acl_rulei_destroy(rulei);
err_rulei_create:
	mlxsw_sp_acl_ctcam_chunk_fini(&region->catchall.cchunk);
	return err;
}

static void
mlxsw_sp1_acl_ctcam_region_catchall_del(struct mlxsw_sp *mlxsw_sp,
					struct mlxsw_sp1_acl_tcam_region *region)
{
	struct mlxsw_sp_acl_rule_info *rulei = region->catchall.rulei;

	mlxsw_sp_acl_ctcam_entry_del(mlxsw_sp, &region->cregion,
				     &region->catchall.cchunk,
				     &region->catchall.centry);
	mlxsw_sp_acl_rulei_destroy(rulei);
	mlxsw_sp_acl_ctcam_chunk_fini(&region->catchall.cchunk);
}

static int
mlxsw_sp1_acl_tcam_region_init(struct mlxsw_sp *mlxsw_sp, void *region_priv,
			       void *tcam_priv,
			       struct mlxsw_sp_acl_tcam_region *_region,
			       void *hints_priv)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;
	int err;

	err = mlxsw_sp_acl_ctcam_region_init(mlxsw_sp, &region->cregion,
					     _region,
					     &mlxsw_sp1_acl_ctcam_region_ops);
	if (err)
		return err;
	err = mlxsw_sp1_acl_ctcam_region_catchall_add(mlxsw_sp, region);
	if (err)
		goto err_catchall_add;
	region->region = _region;
	return 0;

err_catchall_add:
	mlxsw_sp_acl_ctcam_region_fini(&region->cregion);
	return err;
}

static void
mlxsw_sp1_acl_tcam_region_fini(struct mlxsw_sp *mlxsw_sp, void *region_priv)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;

	mlxsw_sp1_acl_ctcam_region_catchall_del(mlxsw_sp, region);
	mlxsw_sp_acl_ctcam_region_fini(&region->cregion);
}

static int
mlxsw_sp1_acl_tcam_region_associate(struct mlxsw_sp *mlxsw_sp,
				    struct mlxsw_sp_acl_tcam_region *region)
{
	return 0;
}

static void mlxsw_sp1_acl_tcam_chunk_init(void *region_priv, void *chunk_priv,
					  unsigned int priority)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;
	struct mlxsw_sp1_acl_tcam_chunk *chunk = chunk_priv;

	mlxsw_sp_acl_ctcam_chunk_init(&region->cregion, &chunk->cchunk,
				      priority);
}

static void mlxsw_sp1_acl_tcam_chunk_fini(void *chunk_priv)
{
	struct mlxsw_sp1_acl_tcam_chunk *chunk = chunk_priv;

	mlxsw_sp_acl_ctcam_chunk_fini(&chunk->cchunk);
}

static int mlxsw_sp1_acl_tcam_entry_add(struct mlxsw_sp *mlxsw_sp,
					void *region_priv, void *chunk_priv,
					void *entry_priv,
					struct mlxsw_sp_acl_rule_info *rulei)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;
	struct mlxsw_sp1_acl_tcam_chunk *chunk = chunk_priv;
	struct mlxsw_sp1_acl_tcam_entry *entry = entry_priv;

	return mlxsw_sp_acl_ctcam_entry_add(mlxsw_sp, &region->cregion,
					    &chunk->cchunk, &entry->centry,
					    rulei, false);
}

static void mlxsw_sp1_acl_tcam_entry_del(struct mlxsw_sp *mlxsw_sp,
					 void *region_priv, void *chunk_priv,
					 void *entry_priv)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;
	struct mlxsw_sp1_acl_tcam_chunk *chunk = chunk_priv;
	struct mlxsw_sp1_acl_tcam_entry *entry = entry_priv;

	mlxsw_sp_acl_ctcam_entry_del(mlxsw_sp, &region->cregion,
				     &chunk->cchunk, &entry->centry);
}

static int
mlxsw_sp1_acl_tcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp,
					void *region_priv, void *entry_priv,
					struct mlxsw_sp_acl_rule_info *rulei)
{
	return -EOPNOTSUPP;
}

static int
mlxsw_sp1_acl_tcam_region_entry_activity_get(struct mlxsw_sp *mlxsw_sp,
					     struct mlxsw_sp_acl_tcam_region *_region,
					     unsigned int offset,
					     bool *activity)
{
	char ptce2_pl[MLXSW_REG_PTCE2_LEN];
	int err;

	mlxsw_reg_ptce2_pack(ptce2_pl, true, MLXSW_REG_PTCE2_OP_QUERY_CLEAR_ON_READ,
			     _region->tcam_region_info, offset, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl);
	if (err)
		return err;
	*activity = mlxsw_reg_ptce2_a_get(ptce2_pl);
	return 0;
}

static int
mlxsw_sp1_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp,
				      void *region_priv, void *entry_priv,
				      bool *activity)
{
	struct mlxsw_sp1_acl_tcam_region *region = region_priv;
	struct mlxsw_sp1_acl_tcam_entry *entry = entry_priv;
	unsigned int offset;

	offset = mlxsw_sp_acl_ctcam_entry_offset(&entry->centry);
	return mlxsw_sp1_acl_tcam_region_entry_activity_get(mlxsw_sp,
							    region->region,
							    offset, activity);
}

const struct mlxsw_sp_acl_tcam_ops mlxsw_sp1_acl_tcam_ops = {
	.key_type		= MLXSW_REG_PTAR_KEY_TYPE_FLEX,
	.priv_size		= 0,
	.init			= mlxsw_sp1_acl_tcam_init,
	.fini			= mlxsw_sp1_acl_tcam_fini,
	.region_priv_size	= sizeof(struct mlxsw_sp1_acl_tcam_region),
	.region_init		= mlxsw_sp1_acl_tcam_region_init,
	.region_fini		= mlxsw_sp1_acl_tcam_region_fini,
	.region_associate	= mlxsw_sp1_acl_tcam_region_associate,
	.chunk_priv_size	= sizeof(struct mlxsw_sp1_acl_tcam_chunk),
	.chunk_init		= mlxsw_sp1_acl_tcam_chunk_init,
	.chunk_fini		= mlxsw_sp1_acl_tcam_chunk_fini,
	.entry_priv_size	= sizeof(struct mlxsw_sp1_acl_tcam_entry),
	.entry_add		= mlxsw_sp1_acl_tcam_entry_add,
	.entry_del		= mlxsw_sp1_acl_tcam_entry_del,
	.entry_action_replace	= mlxsw_sp1_acl_tcam_entry_action_replace,
	.entry_activity_get	= mlxsw_sp1_acl_tcam_entry_activity_get,
};