1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
4 #include <linux/kernel.h>
7 #include "spectrum_acl_tcam.h"
8 #include "core_acl_flex_actions.h"
10 struct mlxsw_sp2_acl_tcam {
11 struct mlxsw_sp_acl_atcam atcam;
13 unsigned int kvdl_count;
16 struct mlxsw_sp2_acl_tcam_region {
17 struct mlxsw_sp_acl_atcam_region aregion;
18 struct mlxsw_sp_acl_tcam_region *region;
21 struct mlxsw_sp2_acl_tcam_chunk {
22 struct mlxsw_sp_acl_atcam_chunk achunk;
25 struct mlxsw_sp2_acl_tcam_entry {
26 struct mlxsw_sp_acl_atcam_entry aentry;
27 struct mlxsw_afa_block *act_block;
31 mlxsw_sp2_acl_ctcam_region_entry_insert(struct mlxsw_sp_acl_ctcam_region *cregion,
32 struct mlxsw_sp_acl_ctcam_entry *centry,
35 struct mlxsw_sp_acl_atcam_region *aregion;
36 struct mlxsw_sp_acl_atcam_entry *aentry;
37 struct mlxsw_sp_acl_erp_mask *erp_mask;
39 aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion);
40 aentry = mlxsw_sp_acl_tcam_centry_aentry(centry);
42 erp_mask = mlxsw_sp_acl_erp_mask_get(aregion, mask, true);
44 return PTR_ERR(erp_mask);
45 aentry->erp_mask = erp_mask;
51 mlxsw_sp2_acl_ctcam_region_entry_remove(struct mlxsw_sp_acl_ctcam_region *cregion,
52 struct mlxsw_sp_acl_ctcam_entry *centry)
54 struct mlxsw_sp_acl_atcam_region *aregion;
55 struct mlxsw_sp_acl_atcam_entry *aentry;
57 aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion);
58 aentry = mlxsw_sp_acl_tcam_centry_aentry(centry);
60 mlxsw_sp_acl_erp_mask_put(aregion, aentry->erp_mask);
63 static const struct mlxsw_sp_acl_ctcam_region_ops
64 mlxsw_sp2_acl_ctcam_region_ops = {
65 .entry_insert = mlxsw_sp2_acl_ctcam_region_entry_insert,
66 .entry_remove = mlxsw_sp2_acl_ctcam_region_entry_remove,
69 static int mlxsw_sp2_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv,
70 struct mlxsw_sp_acl_tcam *_tcam)
72 struct mlxsw_sp2_acl_tcam *tcam = priv;
73 struct mlxsw_afa_block *afa_block;
74 char pefa_pl[MLXSW_REG_PEFA_LEN];
75 char pgcr_pl[MLXSW_REG_PGCR_LEN];
80 tcam->kvdl_count = _tcam->max_regions;
81 err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
82 tcam->kvdl_count, &tcam->kvdl_index);
86 /* Create flex action block, set default action (continue)
87 * but don't commit. We need just the current set encoding
88 * to be written using PEFA register to all indexes for all regions.
90 afa_block = mlxsw_afa_block_create(mlxsw_sp->afa);
91 if (IS_ERR(afa_block)) {
92 err = PTR_ERR(afa_block);
95 err = mlxsw_afa_block_continue(afa_block);
97 goto err_afa_block_continue;
98 enc_actions = mlxsw_afa_block_cur_set(afa_block);
100 for (i = 0; i < tcam->kvdl_count; i++) {
101 mlxsw_reg_pefa_pack(pefa_pl, tcam->kvdl_index + i,
103 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl);
107 mlxsw_reg_pgcr_pack(pgcr_pl, tcam->kvdl_index);
108 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pgcr), pgcr_pl);
112 err = mlxsw_sp_acl_atcam_init(mlxsw_sp, &tcam->atcam);
116 mlxsw_afa_block_destroy(afa_block);
122 err_afa_block_continue:
123 mlxsw_afa_block_destroy(afa_block);
125 mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
126 tcam->kvdl_count, tcam->kvdl_index);
130 static void mlxsw_sp2_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv)
132 struct mlxsw_sp2_acl_tcam *tcam = priv;
134 mlxsw_sp_acl_atcam_fini(mlxsw_sp, &tcam->atcam);
135 mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
136 tcam->kvdl_count, tcam->kvdl_index);
140 mlxsw_sp2_acl_tcam_region_init(struct mlxsw_sp *mlxsw_sp, void *region_priv,
142 struct mlxsw_sp_acl_tcam_region *_region,
145 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
146 struct mlxsw_sp2_acl_tcam *tcam = tcam_priv;
148 region->region = _region;
150 return mlxsw_sp_acl_atcam_region_init(mlxsw_sp, &tcam->atcam,
153 &mlxsw_sp2_acl_ctcam_region_ops);
157 mlxsw_sp2_acl_tcam_region_fini(struct mlxsw_sp *mlxsw_sp, void *region_priv)
159 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
161 mlxsw_sp_acl_atcam_region_fini(®ion->aregion);
165 mlxsw_sp2_acl_tcam_region_associate(struct mlxsw_sp *mlxsw_sp,
166 struct mlxsw_sp_acl_tcam_region *region)
168 return mlxsw_sp_acl_atcam_region_associate(mlxsw_sp, region->id);
171 static void *mlxsw_sp2_acl_tcam_region_rehash_hints_get(void *region_priv)
173 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
175 return mlxsw_sp_acl_atcam_rehash_hints_get(®ion->aregion);
178 static void mlxsw_sp2_acl_tcam_region_rehash_hints_put(void *hints_priv)
180 mlxsw_sp_acl_atcam_rehash_hints_put(hints_priv);
183 static void mlxsw_sp2_acl_tcam_chunk_init(void *region_priv, void *chunk_priv,
184 unsigned int priority)
186 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
187 struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
189 mlxsw_sp_acl_atcam_chunk_init(®ion->aregion, &chunk->achunk,
193 static void mlxsw_sp2_acl_tcam_chunk_fini(void *chunk_priv)
195 struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
197 mlxsw_sp_acl_atcam_chunk_fini(&chunk->achunk);
200 static int mlxsw_sp2_acl_tcam_entry_add(struct mlxsw_sp *mlxsw_sp,
201 void *region_priv, void *chunk_priv,
203 struct mlxsw_sp_acl_rule_info *rulei)
205 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
206 struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
207 struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
209 entry->act_block = rulei->act_block;
210 return mlxsw_sp_acl_atcam_entry_add(mlxsw_sp, ®ion->aregion,
211 &chunk->achunk, &entry->aentry,
215 static void mlxsw_sp2_acl_tcam_entry_del(struct mlxsw_sp *mlxsw_sp,
216 void *region_priv, void *chunk_priv,
219 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
220 struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
221 struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
223 mlxsw_sp_acl_atcam_entry_del(mlxsw_sp, ®ion->aregion, &chunk->achunk,
228 mlxsw_sp2_acl_tcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp,
229 void *region_priv, void *entry_priv,
230 struct mlxsw_sp_acl_rule_info *rulei)
232 struct mlxsw_sp2_acl_tcam_region *region = region_priv;
233 struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
235 entry->act_block = rulei->act_block;
236 return mlxsw_sp_acl_atcam_entry_action_replace(mlxsw_sp,
238 &entry->aentry, rulei);
242 mlxsw_sp2_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp,
243 void *region_priv, void *entry_priv,
246 struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
248 return mlxsw_afa_block_activity_get(entry->act_block, activity);
251 const struct mlxsw_sp_acl_tcam_ops mlxsw_sp2_acl_tcam_ops = {
252 .key_type = MLXSW_REG_PTAR_KEY_TYPE_FLEX2,
253 .priv_size = sizeof(struct mlxsw_sp2_acl_tcam),
254 .init = mlxsw_sp2_acl_tcam_init,
255 .fini = mlxsw_sp2_acl_tcam_fini,
256 .region_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_region),
257 .region_init = mlxsw_sp2_acl_tcam_region_init,
258 .region_fini = mlxsw_sp2_acl_tcam_region_fini,
259 .region_associate = mlxsw_sp2_acl_tcam_region_associate,
260 .region_rehash_hints_get = mlxsw_sp2_acl_tcam_region_rehash_hints_get,
261 .region_rehash_hints_put = mlxsw_sp2_acl_tcam_region_rehash_hints_put,
262 .chunk_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_chunk),
263 .chunk_init = mlxsw_sp2_acl_tcam_chunk_init,
264 .chunk_fini = mlxsw_sp2_acl_tcam_chunk_fini,
265 .entry_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_entry),
266 .entry_add = mlxsw_sp2_acl_tcam_entry_add,
267 .entry_del = mlxsw_sp2_acl_tcam_entry_del,
268 .entry_action_replace = mlxsw_sp2_acl_tcam_entry_action_replace,
269 .entry_activity_get = mlxsw_sp2_acl_tcam_entry_activity_get,