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9948a064 JP |
1 | // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
2 | /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */ | |
22a67766 JP |
3 | |
4 | #include <linux/kernel.h> | |
5 | #include <linux/slab.h> | |
6 | #include <linux/errno.h> | |
7 | #include <linux/bitops.h> | |
8 | #include <linux/list.h> | |
9 | #include <linux/rhashtable.h> | |
10 | #include <linux/netdevice.h> | |
5ec2ee28 | 11 | #include <linux/mutex.h> |
74cbc3c0 | 12 | #include <net/devlink.h> |
3985de72 | 13 | #include <trace/events/mlxsw.h> |
22a67766 JP |
14 | |
15 | #include "reg.h" | |
16 | #include "core.h" | |
17 | #include "resources.h" | |
18 | #include "spectrum.h" | |
64eccd00 | 19 | #include "spectrum_acl_tcam.h" |
22a67766 JP |
20 | #include "core_acl_flex_keys.h" |
21 | ||
bab5c1cf JP |
22 | size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp) |
23 | { | |
24 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
25 | ||
26 | return ops->priv_size; | |
27 | } | |
22a67766 | 28 | |
e5e7962e | 29 | #define MLXSW_SP_ACL_TCAM_VREGION_REHASH_INTRVL_DFLT 5000 /* ms */ |
98bbf70c | 30 | #define MLXSW_SP_ACL_TCAM_VREGION_REHASH_INTRVL_MIN 3000 /* ms */ |
c9c9af91 | 31 | #define MLXSW_SP_ACL_TCAM_VREGION_REHASH_CREDITS 100 /* number of entries */ |
e5e7962e | 32 | |
ea8b2e28 JP |
33 | int mlxsw_sp_acl_tcam_priority_get(struct mlxsw_sp *mlxsw_sp, |
34 | struct mlxsw_sp_acl_rule_info *rulei, | |
35 | u32 *priority, bool fillup_priority) | |
36 | { | |
37 | u64 max_priority; | |
38 | ||
39 | if (!fillup_priority) { | |
40 | *priority = 0; | |
41 | return 0; | |
42 | } | |
43 | ||
44 | if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, KVD_SIZE)) | |
45 | return -EIO; | |
46 | ||
d7263ab3 ND |
47 | /* Priority range is 1..cap_kvd_size-1. */ |
48 | max_priority = MLXSW_CORE_RES_GET(mlxsw_sp->core, KVD_SIZE) - 1; | |
49 | if (rulei->priority >= max_priority) | |
ea8b2e28 JP |
50 | return -EINVAL; |
51 | ||
52 | /* Unlike in TC, in HW, higher number means higher priority. */ | |
53 | *priority = max_priority - rulei->priority; | |
54 | return 0; | |
55 | } | |
56 | ||
22a67766 JP |
57 | static int mlxsw_sp_acl_tcam_region_id_get(struct mlxsw_sp_acl_tcam *tcam, |
58 | u16 *p_id) | |
59 | { | |
60 | u16 id; | |
61 | ||
62 | id = find_first_zero_bit(tcam->used_regions, tcam->max_regions); | |
63 | if (id < tcam->max_regions) { | |
64 | __set_bit(id, tcam->used_regions); | |
65 | *p_id = id; | |
66 | return 0; | |
67 | } | |
68 | return -ENOBUFS; | |
69 | } | |
70 | ||
71 | static void mlxsw_sp_acl_tcam_region_id_put(struct mlxsw_sp_acl_tcam *tcam, | |
72 | u16 id) | |
73 | { | |
74 | __clear_bit(id, tcam->used_regions); | |
75 | } | |
76 | ||
77 | static int mlxsw_sp_acl_tcam_group_id_get(struct mlxsw_sp_acl_tcam *tcam, | |
78 | u16 *p_id) | |
79 | { | |
80 | u16 id; | |
81 | ||
82 | id = find_first_zero_bit(tcam->used_groups, tcam->max_groups); | |
83 | if (id < tcam->max_groups) { | |
84 | __set_bit(id, tcam->used_groups); | |
85 | *p_id = id; | |
86 | return 0; | |
87 | } | |
88 | return -ENOBUFS; | |
89 | } | |
90 | ||
91 | static void mlxsw_sp_acl_tcam_group_id_put(struct mlxsw_sp_acl_tcam *tcam, | |
92 | u16 id) | |
93 | { | |
94 | __clear_bit(id, tcam->used_groups); | |
95 | } | |
96 | ||
97 | struct mlxsw_sp_acl_tcam_pattern { | |
98 | const enum mlxsw_afk_element *elements; | |
99 | unsigned int elements_count; | |
100 | }; | |
101 | ||
102 | struct mlxsw_sp_acl_tcam_group { | |
103 | struct mlxsw_sp_acl_tcam *tcam; | |
104 | u16 id; | |
5ec2ee28 | 105 | struct mutex lock; /* guards region list updates */ |
2802aadf | 106 | struct list_head region_list; |
22a67766 | 107 | unsigned int region_count; |
2802aadf JP |
108 | }; |
109 | ||
110 | struct mlxsw_sp_acl_tcam_vgroup { | |
111 | struct mlxsw_sp_acl_tcam_group group; | |
112 | struct list_head vregion_list; | |
b2d6b4d2 | 113 | struct rhashtable vchunk_ht; |
22a67766 JP |
114 | const struct mlxsw_sp_acl_tcam_pattern *patterns; |
115 | unsigned int patterns_count; | |
e2f2a1fd JP |
116 | bool tmplt_elusage_set; |
117 | struct mlxsw_afk_element_usage tmplt_elusage; | |
6b861682 | 118 | bool vregion_rehash_enabled; |
593bb843 JP |
119 | unsigned int *p_min_prio; |
120 | unsigned int *p_max_prio; | |
22a67766 JP |
121 | }; |
122 | ||
559c2768 JP |
123 | struct mlxsw_sp_acl_tcam_rehash_ctx { |
124 | void *hints_priv; | |
220f4fba | 125 | bool this_is_rollback; |
6f9579d4 JP |
126 | struct mlxsw_sp_acl_tcam_vchunk *current_vchunk; /* vchunk being |
127 | * currently migrated. | |
128 | */ | |
129 | struct mlxsw_sp_acl_tcam_ventry *start_ventry; /* ventry to start | |
130 | * migration from in | |
131 | * a vchunk being | |
132 | * currently migrated. | |
133 | */ | |
134 | struct mlxsw_sp_acl_tcam_ventry *stop_ventry; /* ventry to stop | |
135 | * migration at | |
136 | * a vchunk being | |
137 | * currently migrated. | |
138 | */ | |
559c2768 JP |
139 | }; |
140 | ||
0f54236d | 141 | struct mlxsw_sp_acl_tcam_vregion { |
1263a9ab JP |
142 | struct mutex lock; /* Protects consistency of region, region2 pointers |
143 | * and vchunk_list. | |
144 | */ | |
0f54236d | 145 | struct mlxsw_sp_acl_tcam_region *region; |
e5e7962e | 146 | struct mlxsw_sp_acl_tcam_region *region2; /* Used during migration */ |
0f54236d | 147 | struct list_head list; /* Member of a TCAM group */ |
e5e7962e | 148 | struct list_head tlist; /* Member of a TCAM */ |
b2d6b4d2 | 149 | struct list_head vchunk_list; /* List of vchunks under this vregion */ |
0f54236d | 150 | struct mlxsw_afk_key_info *key_info; |
e5e7962e | 151 | struct mlxsw_sp_acl_tcam *tcam; |
6b861682 | 152 | struct mlxsw_sp_acl_tcam_vgroup *vgroup; |
f9b274ce JP |
153 | struct { |
154 | struct delayed_work dw; | |
559c2768 | 155 | struct mlxsw_sp_acl_tcam_rehash_ctx ctx; |
f9b274ce | 156 | } rehash; |
e5e7962e | 157 | struct mlxsw_sp *mlxsw_sp; |
79604b6e | 158 | unsigned int ref_count; |
0f54236d JP |
159 | }; |
160 | ||
b2d6b4d2 JP |
161 | struct mlxsw_sp_acl_tcam_vchunk; |
162 | ||
22a67766 | 163 | struct mlxsw_sp_acl_tcam_chunk { |
b2d6b4d2 | 164 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
e5e7962e | 165 | struct mlxsw_sp_acl_tcam_region *region; |
e99f8e7f | 166 | unsigned long priv[]; |
b2d6b4d2 JP |
167 | /* priv has to be always the last item */ |
168 | }; | |
169 | ||
170 | struct mlxsw_sp_acl_tcam_vchunk { | |
171 | struct mlxsw_sp_acl_tcam_chunk *chunk; | |
e5e7962e | 172 | struct mlxsw_sp_acl_tcam_chunk *chunk2; /* Used during migration */ |
0f54236d | 173 | struct list_head list; /* Member of a TCAM vregion */ |
22a67766 | 174 | struct rhash_head ht_node; /* Member of a chunk HT */ |
e5e7962e | 175 | struct list_head ventry_list; |
0f54236d | 176 | unsigned int priority; /* Priority within the vregion and group */ |
2802aadf | 177 | struct mlxsw_sp_acl_tcam_vgroup *vgroup; |
0f54236d | 178 | struct mlxsw_sp_acl_tcam_vregion *vregion; |
22a67766 JP |
179 | unsigned int ref_count; |
180 | }; | |
181 | ||
182 | struct mlxsw_sp_acl_tcam_entry { | |
c4c2dc54 | 183 | struct mlxsw_sp_acl_tcam_ventry *ventry; |
e5e7962e | 184 | struct mlxsw_sp_acl_tcam_chunk *chunk; |
e99f8e7f | 185 | unsigned long priv[]; |
64eccd00 | 186 | /* priv has to be always the last item */ |
22a67766 JP |
187 | }; |
188 | ||
c4c2dc54 JP |
189 | struct mlxsw_sp_acl_tcam_ventry { |
190 | struct mlxsw_sp_acl_tcam_entry *entry; | |
e5e7962e | 191 | struct list_head list; /* Member of a TCAM vchunk */ |
c4c2dc54 | 192 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
e5e7962e | 193 | struct mlxsw_sp_acl_rule_info *rulei; |
c4c2dc54 JP |
194 | }; |
195 | ||
b2d6b4d2 | 196 | static const struct rhashtable_params mlxsw_sp_acl_tcam_vchunk_ht_params = { |
22a67766 | 197 | .key_len = sizeof(unsigned int), |
b2d6b4d2 JP |
198 | .key_offset = offsetof(struct mlxsw_sp_acl_tcam_vchunk, priority), |
199 | .head_offset = offsetof(struct mlxsw_sp_acl_tcam_vchunk, ht_node), | |
22a67766 JP |
200 | .automatic_shrinking = true, |
201 | }; | |
202 | ||
203 | static int mlxsw_sp_acl_tcam_group_update(struct mlxsw_sp *mlxsw_sp, | |
204 | struct mlxsw_sp_acl_tcam_group *group) | |
205 | { | |
2802aadf | 206 | struct mlxsw_sp_acl_tcam_region *region; |
22a67766 JP |
207 | char pagt_pl[MLXSW_REG_PAGT_LEN]; |
208 | int acl_index = 0; | |
209 | ||
210 | mlxsw_reg_pagt_pack(pagt_pl, group->id); | |
2802aadf JP |
211 | list_for_each_entry(region, &group->region_list, list) { |
212 | bool multi = false; | |
213 | ||
214 | /* Check if the next entry in the list has the same vregion. */ | |
215 | if (region->list.next != &group->region_list && | |
216 | list_next_entry(region, list)->vregion == region->vregion) | |
217 | multi = true; | |
0f54236d | 218 | mlxsw_reg_pagt_acl_id_pack(pagt_pl, acl_index++, |
2802aadf | 219 | region->id, multi); |
e5e7962e | 220 | } |
22a67766 JP |
221 | mlxsw_reg_pagt_size_set(pagt_pl, acl_index); |
222 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pagt), pagt_pl); | |
223 | } | |
224 | ||
225 | static int | |
2802aadf JP |
226 | mlxsw_sp_acl_tcam_group_add(struct mlxsw_sp_acl_tcam *tcam, |
227 | struct mlxsw_sp_acl_tcam_group *group) | |
22a67766 JP |
228 | { |
229 | int err; | |
230 | ||
231 | group->tcam = tcam; | |
2802aadf JP |
232 | INIT_LIST_HEAD(&group->region_list); |
233 | ||
234 | err = mlxsw_sp_acl_tcam_group_id_get(tcam, &group->id); | |
235 | if (err) | |
236 | return err; | |
237 | ||
72865028 IS |
238 | mutex_init(&group->lock); |
239 | ||
2802aadf JP |
240 | return 0; |
241 | } | |
242 | ||
243 | static void mlxsw_sp_acl_tcam_group_del(struct mlxsw_sp_acl_tcam_group *group) | |
244 | { | |
245 | struct mlxsw_sp_acl_tcam *tcam = group->tcam; | |
246 | ||
5ec2ee28 | 247 | mutex_destroy(&group->lock); |
2802aadf JP |
248 | mlxsw_sp_acl_tcam_group_id_put(tcam, group->id); |
249 | WARN_ON(!list_empty(&group->region_list)); | |
250 | } | |
251 | ||
252 | static int | |
253 | mlxsw_sp_acl_tcam_vgroup_add(struct mlxsw_sp *mlxsw_sp, | |
254 | struct mlxsw_sp_acl_tcam *tcam, | |
255 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, | |
256 | const struct mlxsw_sp_acl_tcam_pattern *patterns, | |
257 | unsigned int patterns_count, | |
6b861682 | 258 | struct mlxsw_afk_element_usage *tmplt_elusage, |
593bb843 JP |
259 | bool vregion_rehash_enabled, |
260 | unsigned int *p_min_prio, | |
261 | unsigned int *p_max_prio) | |
2802aadf JP |
262 | { |
263 | int err; | |
264 | ||
265 | vgroup->patterns = patterns; | |
266 | vgroup->patterns_count = patterns_count; | |
6b861682 | 267 | vgroup->vregion_rehash_enabled = vregion_rehash_enabled; |
593bb843 JP |
268 | vgroup->p_min_prio = p_min_prio; |
269 | vgroup->p_max_prio = p_max_prio; | |
6b861682 | 270 | |
e2f2a1fd | 271 | if (tmplt_elusage) { |
2802aadf JP |
272 | vgroup->tmplt_elusage_set = true; |
273 | memcpy(&vgroup->tmplt_elusage, tmplt_elusage, | |
274 | sizeof(vgroup->tmplt_elusage)); | |
e2f2a1fd | 275 | } |
2802aadf JP |
276 | INIT_LIST_HEAD(&vgroup->vregion_list); |
277 | ||
278 | err = mlxsw_sp_acl_tcam_group_add(tcam, &vgroup->group); | |
22a67766 JP |
279 | if (err) |
280 | return err; | |
281 | ||
2802aadf | 282 | err = rhashtable_init(&vgroup->vchunk_ht, |
b2d6b4d2 | 283 | &mlxsw_sp_acl_tcam_vchunk_ht_params); |
22a67766 JP |
284 | if (err) |
285 | goto err_rhashtable_init; | |
286 | ||
287 | return 0; | |
288 | ||
289 | err_rhashtable_init: | |
2802aadf | 290 | mlxsw_sp_acl_tcam_group_del(&vgroup->group); |
22a67766 JP |
291 | return err; |
292 | } | |
293 | ||
2802aadf JP |
294 | static void |
295 | mlxsw_sp_acl_tcam_vgroup_del(struct mlxsw_sp_acl_tcam_vgroup *vgroup) | |
22a67766 | 296 | { |
2802aadf JP |
297 | rhashtable_destroy(&vgroup->vchunk_ht); |
298 | mlxsw_sp_acl_tcam_group_del(&vgroup->group); | |
299 | WARN_ON(!list_empty(&vgroup->vregion_list)); | |
22a67766 JP |
300 | } |
301 | ||
302 | static int | |
303 | mlxsw_sp_acl_tcam_group_bind(struct mlxsw_sp *mlxsw_sp, | |
304 | struct mlxsw_sp_acl_tcam_group *group, | |
4b23258d JP |
305 | struct mlxsw_sp_port *mlxsw_sp_port, |
306 | bool ingress) | |
22a67766 | 307 | { |
22a67766 JP |
308 | char ppbt_pl[MLXSW_REG_PPBT_LEN]; |
309 | ||
02caf499 JP |
310 | mlxsw_reg_ppbt_pack(ppbt_pl, ingress ? MLXSW_REG_PXBT_E_IACL : |
311 | MLXSW_REG_PXBT_E_EACL, | |
312 | MLXSW_REG_PXBT_OP_BIND, mlxsw_sp_port->local_port, | |
22a67766 JP |
313 | group->id); |
314 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbt), ppbt_pl); | |
315 | } | |
316 | ||
317 | static void | |
318 | mlxsw_sp_acl_tcam_group_unbind(struct mlxsw_sp *mlxsw_sp, | |
02caf499 | 319 | struct mlxsw_sp_acl_tcam_group *group, |
4b23258d JP |
320 | struct mlxsw_sp_port *mlxsw_sp_port, |
321 | bool ingress) | |
22a67766 JP |
322 | { |
323 | char ppbt_pl[MLXSW_REG_PPBT_LEN]; | |
324 | ||
02caf499 JP |
325 | mlxsw_reg_ppbt_pack(ppbt_pl, ingress ? MLXSW_REG_PXBT_E_IACL : |
326 | MLXSW_REG_PXBT_E_EACL, | |
327 | MLXSW_REG_PXBT_OP_UNBIND, mlxsw_sp_port->local_port, | |
22a67766 JP |
328 | group->id); |
329 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbt), ppbt_pl); | |
330 | } | |
331 | ||
0ade3b64 JP |
332 | static u16 |
333 | mlxsw_sp_acl_tcam_group_id(struct mlxsw_sp_acl_tcam_group *group) | |
334 | { | |
335 | return group->id; | |
336 | } | |
337 | ||
22a67766 | 338 | static unsigned int |
0f54236d | 339 | mlxsw_sp_acl_tcam_vregion_prio(struct mlxsw_sp_acl_tcam_vregion *vregion) |
22a67766 | 340 | { |
b2d6b4d2 | 341 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
22a67766 | 342 | |
b2d6b4d2 | 343 | if (list_empty(&vregion->vchunk_list)) |
22a67766 | 344 | return 0; |
b2d6b4d2 JP |
345 | /* As a priority of a vregion, return priority of the first vchunk */ |
346 | vchunk = list_first_entry(&vregion->vchunk_list, | |
347 | typeof(*vchunk), list); | |
348 | return vchunk->priority; | |
22a67766 JP |
349 | } |
350 | ||
351 | static unsigned int | |
0f54236d | 352 | mlxsw_sp_acl_tcam_vregion_max_prio(struct mlxsw_sp_acl_tcam_vregion *vregion) |
22a67766 | 353 | { |
b2d6b4d2 | 354 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
22a67766 | 355 | |
b2d6b4d2 | 356 | if (list_empty(&vregion->vchunk_list)) |
22a67766 | 357 | return 0; |
b2d6b4d2 JP |
358 | vchunk = list_last_entry(&vregion->vchunk_list, |
359 | typeof(*vchunk), list); | |
360 | return vchunk->priority; | |
22a67766 JP |
361 | } |
362 | ||
593bb843 JP |
363 | static void |
364 | mlxsw_sp_acl_tcam_vgroup_prio_update(struct mlxsw_sp_acl_tcam_vgroup *vgroup) | |
365 | { | |
366 | struct mlxsw_sp_acl_tcam_vregion *vregion; | |
367 | ||
368 | if (list_empty(&vgroup->vregion_list)) | |
369 | return; | |
370 | vregion = list_first_entry(&vgroup->vregion_list, | |
371 | typeof(*vregion), list); | |
372 | *vgroup->p_min_prio = mlxsw_sp_acl_tcam_vregion_prio(vregion); | |
373 | vregion = list_last_entry(&vgroup->vregion_list, | |
374 | typeof(*vregion), list); | |
375 | *vgroup->p_max_prio = mlxsw_sp_acl_tcam_vregion_max_prio(vregion); | |
376 | } | |
377 | ||
0f54236d JP |
378 | static int |
379 | mlxsw_sp_acl_tcam_group_region_attach(struct mlxsw_sp *mlxsw_sp, | |
2802aadf JP |
380 | struct mlxsw_sp_acl_tcam_group *group, |
381 | struct mlxsw_sp_acl_tcam_region *region, | |
79604b6e | 382 | unsigned int priority, |
2802aadf | 383 | struct mlxsw_sp_acl_tcam_region *next_region) |
22a67766 | 384 | { |
2802aadf JP |
385 | struct mlxsw_sp_acl_tcam_region *region2; |
386 | struct list_head *pos; | |
0f54236d JP |
387 | int err; |
388 | ||
5ec2ee28 JP |
389 | mutex_lock(&group->lock); |
390 | if (group->region_count == group->tcam->max_group_size) { | |
391 | err = -ENOBUFS; | |
392 | goto err_region_count_check; | |
393 | } | |
0f54236d | 394 | |
2802aadf JP |
395 | if (next_region) { |
396 | /* If the next region is defined, place the new one | |
397 | * before it. The next one is a sibling. | |
398 | */ | |
399 | pos = &next_region->list; | |
400 | } else { | |
401 | /* Position the region inside the list according to priority */ | |
402 | list_for_each(pos, &group->region_list) { | |
403 | region2 = list_entry(pos, typeof(*region2), list); | |
404 | if (mlxsw_sp_acl_tcam_vregion_prio(region2->vregion) > | |
79604b6e | 405 | priority) |
2802aadf JP |
406 | break; |
407 | } | |
408 | } | |
409 | list_add_tail(®ion->list, pos); | |
410 | region->group = group; | |
411 | ||
0f54236d JP |
412 | err = mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
413 | if (err) | |
2802aadf | 414 | goto err_group_update; |
22a67766 | 415 | |
22a67766 | 416 | group->region_count++; |
5ec2ee28 | 417 | mutex_unlock(&group->lock); |
0f54236d | 418 | return 0; |
2802aadf JP |
419 | |
420 | err_group_update: | |
421 | list_del(®ion->list); | |
5ec2ee28 JP |
422 | err_region_count_check: |
423 | mutex_unlock(&group->lock); | |
2802aadf | 424 | return err; |
22a67766 JP |
425 | } |
426 | ||
427 | static void | |
0f54236d JP |
428 | mlxsw_sp_acl_tcam_group_region_detach(struct mlxsw_sp *mlxsw_sp, |
429 | struct mlxsw_sp_acl_tcam_region *region) | |
22a67766 | 430 | { |
2802aadf | 431 | struct mlxsw_sp_acl_tcam_group *group = region->group; |
0f54236d | 432 | |
5ec2ee28 | 433 | mutex_lock(&group->lock); |
2802aadf | 434 | list_del(®ion->list); |
22a67766 | 435 | group->region_count--; |
0f54236d | 436 | mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
5ec2ee28 | 437 | mutex_unlock(&group->lock); |
22a67766 JP |
438 | } |
439 | ||
440 | static int | |
2802aadf JP |
441 | mlxsw_sp_acl_tcam_vgroup_vregion_attach(struct mlxsw_sp *mlxsw_sp, |
442 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, | |
79604b6e JP |
443 | struct mlxsw_sp_acl_tcam_vregion *vregion, |
444 | unsigned int priority) | |
22a67766 | 445 | { |
0f54236d JP |
446 | struct mlxsw_sp_acl_tcam_vregion *vregion2; |
447 | struct list_head *pos; | |
22a67766 JP |
448 | int err; |
449 | ||
0f54236d | 450 | /* Position the vregion inside the list according to priority */ |
2802aadf | 451 | list_for_each(pos, &vgroup->vregion_list) { |
0f54236d | 452 | vregion2 = list_entry(pos, typeof(*vregion2), list); |
79604b6e | 453 | if (mlxsw_sp_acl_tcam_vregion_prio(vregion2) > priority) |
0f54236d JP |
454 | break; |
455 | } | |
456 | list_add_tail(&vregion->list, pos); | |
22a67766 | 457 | |
2802aadf | 458 | err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp, &vgroup->group, |
79604b6e JP |
459 | vregion->region, |
460 | priority, NULL); | |
22a67766 | 461 | if (err) |
0f54236d | 462 | goto err_region_attach; |
22a67766 JP |
463 | |
464 | return 0; | |
465 | ||
0f54236d JP |
466 | err_region_attach: |
467 | list_del(&vregion->list); | |
22a67766 JP |
468 | return err; |
469 | } | |
470 | ||
471 | static void | |
2802aadf JP |
472 | mlxsw_sp_acl_tcam_vgroup_vregion_detach(struct mlxsw_sp *mlxsw_sp, |
473 | struct mlxsw_sp_acl_tcam_vregion *vregion) | |
22a67766 | 474 | { |
0f54236d | 475 | list_del(&vregion->list); |
e5e7962e JP |
476 | if (vregion->region2) |
477 | mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, | |
478 | vregion->region2); | |
0f54236d | 479 | mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, vregion->region); |
22a67766 JP |
480 | } |
481 | ||
0f54236d | 482 | static struct mlxsw_sp_acl_tcam_vregion * |
2802aadf JP |
483 | mlxsw_sp_acl_tcam_vgroup_vregion_find(struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
484 | unsigned int priority, | |
485 | struct mlxsw_afk_element_usage *elusage, | |
486 | bool *p_need_split) | |
22a67766 | 487 | { |
0f54236d | 488 | struct mlxsw_sp_acl_tcam_vregion *vregion, *vregion2; |
22a67766 JP |
489 | struct list_head *pos; |
490 | bool issubset; | |
491 | ||
2802aadf | 492 | list_for_each(pos, &vgroup->vregion_list) { |
0f54236d | 493 | vregion = list_entry(pos, typeof(*vregion), list); |
22a67766 JP |
494 | |
495 | /* First, check if the requested priority does not rather belong | |
0f54236d | 496 | * under some of the next vregions. |
22a67766 | 497 | */ |
2802aadf | 498 | if (pos->next != &vgroup->vregion_list) { /* not last */ |
0f54236d JP |
499 | vregion2 = list_entry(pos->next, typeof(*vregion2), |
500 | list); | |
501 | if (priority >= | |
502 | mlxsw_sp_acl_tcam_vregion_prio(vregion2)) | |
22a67766 JP |
503 | continue; |
504 | } | |
505 | ||
0f54236d JP |
506 | issubset = mlxsw_afk_key_info_subset(vregion->key_info, |
507 | elusage); | |
22a67766 JP |
508 | |
509 | /* If requested element usage would not fit and the priority | |
0f54236d JP |
510 | * is lower than the currently inspected vregion we cannot |
511 | * use this region, so return NULL to indicate new vregion has | |
22a67766 JP |
512 | * to be created. |
513 | */ | |
514 | if (!issubset && | |
0f54236d | 515 | priority < mlxsw_sp_acl_tcam_vregion_prio(vregion)) |
22a67766 JP |
516 | return NULL; |
517 | ||
518 | /* If requested element usage would not fit and the priority | |
0f54236d JP |
519 | * is higher than the currently inspected vregion we cannot |
520 | * use this vregion. There is still some hope that the next | |
521 | * vregion would be the fit. So let it be processed and | |
22a67766 JP |
522 | * eventually break at the check right above this. |
523 | */ | |
524 | if (!issubset && | |
0f54236d | 525 | priority > mlxsw_sp_acl_tcam_vregion_max_prio(vregion)) |
22a67766 JP |
526 | continue; |
527 | ||
0f54236d | 528 | /* Indicate if the vregion needs to be split in order to add |
22a67766 | 529 | * the requested priority. Split is needed when requested |
0f54236d | 530 | * element usage won't fit into the found vregion. |
22a67766 JP |
531 | */ |
532 | *p_need_split = !issubset; | |
0f54236d | 533 | return vregion; |
22a67766 | 534 | } |
0f54236d | 535 | return NULL; /* New vregion has to be created. */ |
22a67766 JP |
536 | } |
537 | ||
538 | static void | |
2802aadf JP |
539 | mlxsw_sp_acl_tcam_vgroup_use_patterns(struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
540 | struct mlxsw_afk_element_usage *elusage, | |
541 | struct mlxsw_afk_element_usage *out) | |
22a67766 JP |
542 | { |
543 | const struct mlxsw_sp_acl_tcam_pattern *pattern; | |
544 | int i; | |
545 | ||
e2f2a1fd JP |
546 | /* In case the template is set, we don't have to look up the pattern |
547 | * and just use the template. | |
548 | */ | |
2802aadf JP |
549 | if (vgroup->tmplt_elusage_set) { |
550 | memcpy(out, &vgroup->tmplt_elusage, sizeof(*out)); | |
e2f2a1fd JP |
551 | WARN_ON(!mlxsw_afk_element_usage_subset(elusage, out)); |
552 | return; | |
553 | } | |
554 | ||
2802aadf JP |
555 | for (i = 0; i < vgroup->patterns_count; i++) { |
556 | pattern = &vgroup->patterns[i]; | |
22a67766 JP |
557 | mlxsw_afk_element_usage_fill(out, pattern->elements, |
558 | pattern->elements_count); | |
559 | if (mlxsw_afk_element_usage_subset(elusage, out)) | |
560 | return; | |
561 | } | |
562 | memcpy(out, elusage, sizeof(*out)); | |
563 | } | |
564 | ||
22a67766 JP |
565 | static int |
566 | mlxsw_sp_acl_tcam_region_alloc(struct mlxsw_sp *mlxsw_sp, | |
567 | struct mlxsw_sp_acl_tcam_region *region) | |
568 | { | |
569 | struct mlxsw_afk_key_info *key_info = region->key_info; | |
570 | char ptar_pl[MLXSW_REG_PTAR_LEN]; | |
571 | unsigned int encodings_count; | |
572 | int i; | |
573 | int err; | |
574 | ||
575 | mlxsw_reg_ptar_pack(ptar_pl, MLXSW_REG_PTAR_OP_ALLOC, | |
45e0620d | 576 | region->key_type, |
22a67766 JP |
577 | MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT, |
578 | region->id, region->tcam_region_info); | |
579 | encodings_count = mlxsw_afk_key_info_blocks_count_get(key_info); | |
580 | for (i = 0; i < encodings_count; i++) { | |
581 | u16 encoding; | |
582 | ||
583 | encoding = mlxsw_afk_key_info_block_encoding_get(key_info, i); | |
584 | mlxsw_reg_ptar_key_id_pack(ptar_pl, i, encoding); | |
585 | } | |
586 | err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); | |
587 | if (err) | |
588 | return err; | |
589 | mlxsw_reg_ptar_unpack(ptar_pl, region->tcam_region_info); | |
590 | return 0; | |
591 | } | |
592 | ||
593 | static void | |
594 | mlxsw_sp_acl_tcam_region_free(struct mlxsw_sp *mlxsw_sp, | |
595 | struct mlxsw_sp_acl_tcam_region *region) | |
596 | { | |
597 | char ptar_pl[MLXSW_REG_PTAR_LEN]; | |
598 | ||
45e0620d JP |
599 | mlxsw_reg_ptar_pack(ptar_pl, MLXSW_REG_PTAR_OP_FREE, |
600 | region->key_type, 0, region->id, | |
22a67766 JP |
601 | region->tcam_region_info); |
602 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); | |
603 | } | |
604 | ||
22a67766 JP |
605 | static int |
606 | mlxsw_sp_acl_tcam_region_enable(struct mlxsw_sp *mlxsw_sp, | |
607 | struct mlxsw_sp_acl_tcam_region *region) | |
608 | { | |
609 | char pacl_pl[MLXSW_REG_PACL_LEN]; | |
610 | ||
611 | mlxsw_reg_pacl_pack(pacl_pl, region->id, true, | |
612 | region->tcam_region_info); | |
613 | return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pacl), pacl_pl); | |
614 | } | |
615 | ||
616 | static void | |
617 | mlxsw_sp_acl_tcam_region_disable(struct mlxsw_sp *mlxsw_sp, | |
618 | struct mlxsw_sp_acl_tcam_region *region) | |
619 | { | |
620 | char pacl_pl[MLXSW_REG_PACL_LEN]; | |
621 | ||
622 | mlxsw_reg_pacl_pack(pacl_pl, region->id, false, | |
623 | region->tcam_region_info); | |
624 | mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pacl), pacl_pl); | |
625 | } | |
626 | ||
22a67766 JP |
627 | static struct mlxsw_sp_acl_tcam_region * |
628 | mlxsw_sp_acl_tcam_region_create(struct mlxsw_sp *mlxsw_sp, | |
629 | struct mlxsw_sp_acl_tcam *tcam, | |
e5e7962e JP |
630 | struct mlxsw_sp_acl_tcam_vregion *vregion, |
631 | void *hints_priv) | |
22a67766 | 632 | { |
64eccd00 | 633 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
22a67766 JP |
634 | struct mlxsw_sp_acl_tcam_region *region; |
635 | int err; | |
636 | ||
64eccd00 | 637 | region = kzalloc(sizeof(*region) + ops->region_priv_size, GFP_KERNEL); |
22a67766 JP |
638 | if (!region) |
639 | return ERR_PTR(-ENOMEM); | |
22a67766 | 640 | region->mlxsw_sp = mlxsw_sp; |
0f54236d JP |
641 | region->vregion = vregion; |
642 | region->key_info = vregion->key_info; | |
22a67766 JP |
643 | |
644 | err = mlxsw_sp_acl_tcam_region_id_get(tcam, ®ion->id); | |
645 | if (err) | |
646 | goto err_region_id_get; | |
647 | ||
a6b9c87d IS |
648 | err = ops->region_associate(mlxsw_sp, region); |
649 | if (err) | |
650 | goto err_tcam_region_associate; | |
651 | ||
64eccd00 | 652 | region->key_type = ops->key_type; |
22a67766 JP |
653 | err = mlxsw_sp_acl_tcam_region_alloc(mlxsw_sp, region); |
654 | if (err) | |
655 | goto err_tcam_region_alloc; | |
656 | ||
657 | err = mlxsw_sp_acl_tcam_region_enable(mlxsw_sp, region); | |
658 | if (err) | |
659 | goto err_tcam_region_enable; | |
660 | ||
a339bf8a | 661 | err = ops->region_init(mlxsw_sp, region->priv, tcam->priv, |
e5e7962e | 662 | region, hints_priv); |
22a67766 | 663 | if (err) |
64eccd00 | 664 | goto err_tcam_region_init; |
22a67766 JP |
665 | |
666 | return region; | |
667 | ||
64eccd00 | 668 | err_tcam_region_init: |
22a67766 JP |
669 | mlxsw_sp_acl_tcam_region_disable(mlxsw_sp, region); |
670 | err_tcam_region_enable: | |
671 | mlxsw_sp_acl_tcam_region_free(mlxsw_sp, region); | |
672 | err_tcam_region_alloc: | |
a6b9c87d | 673 | err_tcam_region_associate: |
22a67766 JP |
674 | mlxsw_sp_acl_tcam_region_id_put(tcam, region->id); |
675 | err_region_id_get: | |
22a67766 JP |
676 | kfree(region); |
677 | return ERR_PTR(err); | |
678 | } | |
679 | ||
680 | static void | |
681 | mlxsw_sp_acl_tcam_region_destroy(struct mlxsw_sp *mlxsw_sp, | |
682 | struct mlxsw_sp_acl_tcam_region *region) | |
683 | { | |
64eccd00 JP |
684 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
685 | ||
686 | ops->region_fini(mlxsw_sp, region->priv); | |
22a67766 JP |
687 | mlxsw_sp_acl_tcam_region_disable(mlxsw_sp, region); |
688 | mlxsw_sp_acl_tcam_region_free(mlxsw_sp, region); | |
2802aadf | 689 | mlxsw_sp_acl_tcam_region_id_put(region->group->tcam, |
0f54236d | 690 | region->id); |
22a67766 JP |
691 | kfree(region); |
692 | } | |
693 | ||
e5e7962e JP |
694 | static void |
695 | mlxsw_sp_acl_tcam_vregion_rehash_work_schedule(struct mlxsw_sp_acl_tcam_vregion *vregion) | |
696 | { | |
697 | unsigned long interval = vregion->tcam->vregion_rehash_intrvl; | |
698 | ||
699 | if (!interval) | |
700 | return; | |
f9b274ce | 701 | mlxsw_core_schedule_dw(&vregion->rehash.dw, |
e5e7962e JP |
702 | msecs_to_jiffies(interval)); |
703 | } | |
704 | ||
b2c091ce | 705 | static void |
e5e7962e | 706 | mlxsw_sp_acl_tcam_vregion_rehash(struct mlxsw_sp *mlxsw_sp, |
c9c9af91 JP |
707 | struct mlxsw_sp_acl_tcam_vregion *vregion, |
708 | int *credits); | |
e5e7962e JP |
709 | |
710 | static void mlxsw_sp_acl_tcam_vregion_rehash_work(struct work_struct *work) | |
711 | { | |
712 | struct mlxsw_sp_acl_tcam_vregion *vregion = | |
713 | container_of(work, struct mlxsw_sp_acl_tcam_vregion, | |
f9b274ce | 714 | rehash.dw.work); |
c9c9af91 | 715 | int credits = MLXSW_SP_ACL_TCAM_VREGION_REHASH_CREDITS; |
e5e7962e | 716 | |
b2c091ce | 717 | mlxsw_sp_acl_tcam_vregion_rehash(vregion->mlxsw_sp, vregion, &credits); |
c9c9af91 JP |
718 | if (credits < 0) |
719 | /* Rehash gone out of credits so it was interrupted. | |
720 | * Schedule the work as soon as possible to continue. | |
721 | */ | |
722 | mlxsw_core_schedule_dw(&vregion->rehash.dw, 0); | |
723 | else | |
724 | mlxsw_sp_acl_tcam_vregion_rehash_work_schedule(vregion); | |
e5e7962e JP |
725 | } |
726 | ||
6f9579d4 JP |
727 | static void |
728 | mlxsw_sp_acl_tcam_rehash_ctx_vchunk_changed(struct mlxsw_sp_acl_tcam_vchunk *vchunk) | |
729 | { | |
730 | struct mlxsw_sp_acl_tcam_vregion *vregion = vchunk->vregion; | |
731 | ||
732 | /* If a rule was added or deleted from vchunk which is currently | |
733 | * under rehash migration, we have to reset the ventry pointers | |
734 | * to make sure all rules are properly migrated. | |
735 | */ | |
736 | if (vregion->rehash.ctx.current_vchunk == vchunk) { | |
737 | vregion->rehash.ctx.start_ventry = NULL; | |
738 | vregion->rehash.ctx.stop_ventry = NULL; | |
739 | } | |
740 | } | |
741 | ||
742 | static void | |
743 | mlxsw_sp_acl_tcam_rehash_ctx_vregion_changed(struct mlxsw_sp_acl_tcam_vregion *vregion) | |
744 | { | |
745 | /* If a chunk was added or deleted from vregion we have to reset | |
746 | * the current chunk pointer to make sure all chunks | |
747 | * are properly migrated. | |
748 | */ | |
749 | vregion->rehash.ctx.current_vchunk = NULL; | |
750 | } | |
751 | ||
0f54236d JP |
752 | static struct mlxsw_sp_acl_tcam_vregion * |
753 | mlxsw_sp_acl_tcam_vregion_create(struct mlxsw_sp *mlxsw_sp, | |
79604b6e JP |
754 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
755 | unsigned int priority, | |
0f54236d JP |
756 | struct mlxsw_afk_element_usage *elusage) |
757 | { | |
e5e7962e | 758 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
0f54236d | 759 | struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl); |
79604b6e | 760 | struct mlxsw_sp_acl_tcam *tcam = vgroup->group.tcam; |
0f54236d JP |
761 | struct mlxsw_sp_acl_tcam_vregion *vregion; |
762 | int err; | |
763 | ||
764 | vregion = kzalloc(sizeof(*vregion), GFP_KERNEL); | |
765 | if (!vregion) | |
766 | return ERR_PTR(-ENOMEM); | |
b2d6b4d2 | 767 | INIT_LIST_HEAD(&vregion->vchunk_list); |
1263a9ab | 768 | mutex_init(&vregion->lock); |
e5e7962e JP |
769 | vregion->tcam = tcam; |
770 | vregion->mlxsw_sp = mlxsw_sp; | |
6b861682 | 771 | vregion->vgroup = vgroup; |
79604b6e | 772 | vregion->ref_count = 1; |
0f54236d JP |
773 | |
774 | vregion->key_info = mlxsw_afk_key_info_get(afk, elusage); | |
775 | if (IS_ERR(vregion->key_info)) { | |
776 | err = PTR_ERR(vregion->key_info); | |
777 | goto err_key_info_get; | |
778 | } | |
779 | ||
780 | vregion->region = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, tcam, | |
e5e7962e | 781 | vregion, NULL); |
0f54236d JP |
782 | if (IS_ERR(vregion->region)) { |
783 | err = PTR_ERR(vregion->region); | |
784 | goto err_region_create; | |
785 | } | |
786 | ||
79604b6e JP |
787 | err = mlxsw_sp_acl_tcam_vgroup_vregion_attach(mlxsw_sp, vgroup, vregion, |
788 | priority); | |
789 | if (err) | |
790 | goto err_vgroup_vregion_attach; | |
791 | ||
6b861682 | 792 | if (vgroup->vregion_rehash_enabled && ops->region_rehash_hints_get) { |
e5e7962e | 793 | /* Create the delayed work for vregion periodic rehash */ |
f9b274ce | 794 | INIT_DELAYED_WORK(&vregion->rehash.dw, |
e5e7962e JP |
795 | mlxsw_sp_acl_tcam_vregion_rehash_work); |
796 | mlxsw_sp_acl_tcam_vregion_rehash_work_schedule(vregion); | |
7b0f62ee | 797 | mutex_lock(&tcam->lock); |
6b861682 | 798 | list_add_tail(&vregion->tlist, &tcam->vregion_list); |
7b0f62ee | 799 | mutex_unlock(&tcam->lock); |
e5e7962e JP |
800 | } |
801 | ||
0f54236d JP |
802 | return vregion; |
803 | ||
79604b6e JP |
804 | err_vgroup_vregion_attach: |
805 | mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, vregion->region); | |
0f54236d JP |
806 | err_region_create: |
807 | mlxsw_afk_key_info_put(vregion->key_info); | |
808 | err_key_info_get: | |
809 | kfree(vregion); | |
810 | return ERR_PTR(err); | |
811 | } | |
812 | ||
813 | static void | |
814 | mlxsw_sp_acl_tcam_vregion_destroy(struct mlxsw_sp *mlxsw_sp, | |
815 | struct mlxsw_sp_acl_tcam_vregion *vregion) | |
816 | { | |
e5e7962e | 817 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
6b861682 | 818 | struct mlxsw_sp_acl_tcam_vgroup *vgroup = vregion->vgroup; |
7b0f62ee | 819 | struct mlxsw_sp_acl_tcam *tcam = vregion->tcam; |
e5e7962e | 820 | |
6b861682 | 821 | if (vgroup->vregion_rehash_enabled && ops->region_rehash_hints_get) { |
7b0f62ee | 822 | mutex_lock(&tcam->lock); |
6b861682 | 823 | list_del(&vregion->tlist); |
7b0f62ee | 824 | mutex_unlock(&tcam->lock); |
f9b274ce | 825 | cancel_delayed_work_sync(&vregion->rehash.dw); |
6b861682 | 826 | } |
79604b6e | 827 | mlxsw_sp_acl_tcam_vgroup_vregion_detach(mlxsw_sp, vregion); |
e5e7962e JP |
828 | if (vregion->region2) |
829 | mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, vregion->region2); | |
0f54236d JP |
830 | mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, vregion->region); |
831 | mlxsw_afk_key_info_put(vregion->key_info); | |
1263a9ab | 832 | mutex_destroy(&vregion->lock); |
0f54236d JP |
833 | kfree(vregion); |
834 | } | |
835 | ||
79604b6e JP |
836 | static struct mlxsw_sp_acl_tcam_vregion * |
837 | mlxsw_sp_acl_tcam_vregion_get(struct mlxsw_sp *mlxsw_sp, | |
838 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, | |
839 | unsigned int priority, | |
840 | struct mlxsw_afk_element_usage *elusage) | |
22a67766 | 841 | { |
79604b6e | 842 | struct mlxsw_afk_element_usage vregion_elusage; |
0f54236d | 843 | struct mlxsw_sp_acl_tcam_vregion *vregion; |
22a67766 | 844 | bool need_split; |
22a67766 | 845 | |
2802aadf JP |
846 | vregion = mlxsw_sp_acl_tcam_vgroup_vregion_find(vgroup, priority, |
847 | elusage, &need_split); | |
79604b6e JP |
848 | if (vregion) { |
849 | if (need_split) { | |
850 | /* According to priority, new vchunk should belong to | |
851 | * an existing vregion. However, this vchunk needs | |
852 | * elements that vregion does not contain. We need | |
853 | * to split the existing vregion into two and create | |
854 | * a new vregion for the new vchunk in between. | |
855 | * This is not supported now. | |
856 | */ | |
857 | return ERR_PTR(-EOPNOTSUPP); | |
858 | } | |
859 | vregion->ref_count++; | |
860 | return vregion; | |
22a67766 JP |
861 | } |
862 | ||
79604b6e JP |
863 | mlxsw_sp_acl_tcam_vgroup_use_patterns(vgroup, elusage, |
864 | &vregion_elusage); | |
22a67766 | 865 | |
79604b6e JP |
866 | return mlxsw_sp_acl_tcam_vregion_create(mlxsw_sp, vgroup, priority, |
867 | &vregion_elusage); | |
22a67766 JP |
868 | } |
869 | ||
870 | static void | |
79604b6e JP |
871 | mlxsw_sp_acl_tcam_vregion_put(struct mlxsw_sp *mlxsw_sp, |
872 | struct mlxsw_sp_acl_tcam_vregion *vregion) | |
22a67766 | 873 | { |
79604b6e JP |
874 | if (--vregion->ref_count) |
875 | return; | |
876 | mlxsw_sp_acl_tcam_vregion_destroy(mlxsw_sp, vregion); | |
22a67766 JP |
877 | } |
878 | ||
879 | static struct mlxsw_sp_acl_tcam_chunk * | |
880 | mlxsw_sp_acl_tcam_chunk_create(struct mlxsw_sp *mlxsw_sp, | |
b2d6b4d2 JP |
881 | struct mlxsw_sp_acl_tcam_vchunk *vchunk, |
882 | struct mlxsw_sp_acl_tcam_region *region) | |
22a67766 | 883 | { |
64eccd00 | 884 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
22a67766 | 885 | struct mlxsw_sp_acl_tcam_chunk *chunk; |
b2d6b4d2 JP |
886 | |
887 | chunk = kzalloc(sizeof(*chunk) + ops->chunk_priv_size, GFP_KERNEL); | |
888 | if (!chunk) | |
889 | return ERR_PTR(-ENOMEM); | |
890 | chunk->vchunk = vchunk; | |
e5e7962e | 891 | chunk->region = region; |
b2d6b4d2 JP |
892 | |
893 | ops->chunk_init(region->priv, chunk->priv, vchunk->priority); | |
894 | return chunk; | |
895 | } | |
896 | ||
897 | static void | |
898 | mlxsw_sp_acl_tcam_chunk_destroy(struct mlxsw_sp *mlxsw_sp, | |
899 | struct mlxsw_sp_acl_tcam_chunk *chunk) | |
900 | { | |
901 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
902 | ||
903 | ops->chunk_fini(chunk->priv); | |
904 | kfree(chunk); | |
905 | } | |
906 | ||
907 | static struct mlxsw_sp_acl_tcam_vchunk * | |
908 | mlxsw_sp_acl_tcam_vchunk_create(struct mlxsw_sp *mlxsw_sp, | |
2802aadf | 909 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
b2d6b4d2 JP |
910 | unsigned int priority, |
911 | struct mlxsw_afk_element_usage *elusage) | |
912 | { | |
6ef4889f | 913 | struct mlxsw_sp_acl_tcam_vchunk *vchunk, *vchunk2; |
79604b6e | 914 | struct mlxsw_sp_acl_tcam_vregion *vregion; |
6ef4889f | 915 | struct list_head *pos; |
22a67766 JP |
916 | int err; |
917 | ||
918 | if (priority == MLXSW_SP_ACL_TCAM_CATCHALL_PRIO) | |
919 | return ERR_PTR(-EINVAL); | |
920 | ||
b2d6b4d2 JP |
921 | vchunk = kzalloc(sizeof(*vchunk), GFP_KERNEL); |
922 | if (!vchunk) | |
22a67766 | 923 | return ERR_PTR(-ENOMEM); |
e5e7962e | 924 | INIT_LIST_HEAD(&vchunk->ventry_list); |
b2d6b4d2 | 925 | vchunk->priority = priority; |
2802aadf | 926 | vchunk->vgroup = vgroup; |
b2d6b4d2 | 927 | vchunk->ref_count = 1; |
22a67766 | 928 | |
79604b6e JP |
929 | vregion = mlxsw_sp_acl_tcam_vregion_get(mlxsw_sp, vgroup, |
930 | priority, elusage); | |
931 | if (IS_ERR(vregion)) { | |
932 | err = PTR_ERR(vregion); | |
933 | goto err_vregion_get; | |
934 | } | |
935 | ||
936 | vchunk->vregion = vregion; | |
22a67766 | 937 | |
2802aadf | 938 | err = rhashtable_insert_fast(&vgroup->vchunk_ht, &vchunk->ht_node, |
b2d6b4d2 | 939 | mlxsw_sp_acl_tcam_vchunk_ht_params); |
22a67766 JP |
940 | if (err) |
941 | goto err_rhashtable_insert; | |
942 | ||
1263a9ab | 943 | mutex_lock(&vregion->lock); |
b2d6b4d2 JP |
944 | vchunk->chunk = mlxsw_sp_acl_tcam_chunk_create(mlxsw_sp, vchunk, |
945 | vchunk->vregion->region); | |
946 | if (IS_ERR(vchunk->chunk)) { | |
1263a9ab | 947 | mutex_unlock(&vregion->lock); |
b2d6b4d2 JP |
948 | err = PTR_ERR(vchunk->chunk); |
949 | goto err_chunk_create; | |
950 | } | |
951 | ||
6f9579d4 | 952 | mlxsw_sp_acl_tcam_rehash_ctx_vregion_changed(vregion); |
6ef4889f JP |
953 | |
954 | /* Position the vchunk inside the list according to priority */ | |
955 | list_for_each(pos, &vregion->vchunk_list) { | |
956 | vchunk2 = list_entry(pos, typeof(*vchunk2), list); | |
957 | if (vchunk2->priority > priority) | |
958 | break; | |
959 | } | |
960 | list_add_tail(&vchunk->list, pos); | |
1263a9ab | 961 | mutex_unlock(&vregion->lock); |
593bb843 | 962 | mlxsw_sp_acl_tcam_vgroup_prio_update(vgroup); |
79604b6e | 963 | |
b2d6b4d2 | 964 | return vchunk; |
22a67766 | 965 | |
b2d6b4d2 | 966 | err_chunk_create: |
2802aadf | 967 | rhashtable_remove_fast(&vgroup->vchunk_ht, &vchunk->ht_node, |
b2d6b4d2 | 968 | mlxsw_sp_acl_tcam_vchunk_ht_params); |
22a67766 | 969 | err_rhashtable_insert: |
79604b6e JP |
970 | mlxsw_sp_acl_tcam_vregion_put(mlxsw_sp, vregion); |
971 | err_vregion_get: | |
b2d6b4d2 | 972 | kfree(vchunk); |
22a67766 JP |
973 | return ERR_PTR(err); |
974 | } | |
975 | ||
976 | static void | |
b2d6b4d2 JP |
977 | mlxsw_sp_acl_tcam_vchunk_destroy(struct mlxsw_sp *mlxsw_sp, |
978 | struct mlxsw_sp_acl_tcam_vchunk *vchunk) | |
22a67766 | 979 | { |
1263a9ab | 980 | struct mlxsw_sp_acl_tcam_vregion *vregion = vchunk->vregion; |
2802aadf | 981 | struct mlxsw_sp_acl_tcam_vgroup *vgroup = vchunk->vgroup; |
22a67766 | 982 | |
1263a9ab | 983 | mutex_lock(&vregion->lock); |
6f9579d4 | 984 | mlxsw_sp_acl_tcam_rehash_ctx_vregion_changed(vregion); |
79604b6e | 985 | list_del(&vchunk->list); |
e5e7962e JP |
986 | if (vchunk->chunk2) |
987 | mlxsw_sp_acl_tcam_chunk_destroy(mlxsw_sp, vchunk->chunk2); | |
b2d6b4d2 | 988 | mlxsw_sp_acl_tcam_chunk_destroy(mlxsw_sp, vchunk->chunk); |
1263a9ab | 989 | mutex_unlock(&vregion->lock); |
2802aadf | 990 | rhashtable_remove_fast(&vgroup->vchunk_ht, &vchunk->ht_node, |
b2d6b4d2 | 991 | mlxsw_sp_acl_tcam_vchunk_ht_params); |
79604b6e | 992 | mlxsw_sp_acl_tcam_vregion_put(mlxsw_sp, vchunk->vregion); |
b2d6b4d2 | 993 | kfree(vchunk); |
593bb843 | 994 | mlxsw_sp_acl_tcam_vgroup_prio_update(vgroup); |
22a67766 JP |
995 | } |
996 | ||
b2d6b4d2 JP |
997 | static struct mlxsw_sp_acl_tcam_vchunk * |
998 | mlxsw_sp_acl_tcam_vchunk_get(struct mlxsw_sp *mlxsw_sp, | |
2802aadf | 999 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
b2d6b4d2 JP |
1000 | unsigned int priority, |
1001 | struct mlxsw_afk_element_usage *elusage) | |
22a67766 | 1002 | { |
b2d6b4d2 | 1003 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
22a67766 | 1004 | |
2802aadf | 1005 | vchunk = rhashtable_lookup_fast(&vgroup->vchunk_ht, &priority, |
b2d6b4d2 JP |
1006 | mlxsw_sp_acl_tcam_vchunk_ht_params); |
1007 | if (vchunk) { | |
1008 | if (WARN_ON(!mlxsw_afk_key_info_subset(vchunk->vregion->key_info, | |
22a67766 JP |
1009 | elusage))) |
1010 | return ERR_PTR(-EINVAL); | |
b2d6b4d2 JP |
1011 | vchunk->ref_count++; |
1012 | return vchunk; | |
22a67766 | 1013 | } |
2802aadf | 1014 | return mlxsw_sp_acl_tcam_vchunk_create(mlxsw_sp, vgroup, |
b2d6b4d2 | 1015 | priority, elusage); |
22a67766 JP |
1016 | } |
1017 | ||
b2d6b4d2 JP |
1018 | static void |
1019 | mlxsw_sp_acl_tcam_vchunk_put(struct mlxsw_sp *mlxsw_sp, | |
1020 | struct mlxsw_sp_acl_tcam_vchunk *vchunk) | |
22a67766 | 1021 | { |
b2d6b4d2 | 1022 | if (--vchunk->ref_count) |
22a67766 | 1023 | return; |
b2d6b4d2 | 1024 | mlxsw_sp_acl_tcam_vchunk_destroy(mlxsw_sp, vchunk); |
22a67766 JP |
1025 | } |
1026 | ||
c4c2dc54 JP |
1027 | static struct mlxsw_sp_acl_tcam_entry * |
1028 | mlxsw_sp_acl_tcam_entry_create(struct mlxsw_sp *mlxsw_sp, | |
1029 | struct mlxsw_sp_acl_tcam_ventry *ventry, | |
e5e7962e | 1030 | struct mlxsw_sp_acl_tcam_chunk *chunk) |
22a67766 | 1031 | { |
64eccd00 | 1032 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
c4c2dc54 | 1033 | struct mlxsw_sp_acl_tcam_entry *entry; |
22a67766 JP |
1034 | int err; |
1035 | ||
c4c2dc54 JP |
1036 | entry = kzalloc(sizeof(*entry) + ops->entry_priv_size, GFP_KERNEL); |
1037 | if (!entry) | |
1038 | return ERR_PTR(-ENOMEM); | |
1039 | entry->ventry = ventry; | |
e5e7962e | 1040 | entry->chunk = chunk; |
22a67766 | 1041 | |
e5e7962e JP |
1042 | err = ops->entry_add(mlxsw_sp, chunk->region->priv, chunk->priv, |
1043 | entry->priv, ventry->rulei); | |
22a67766 | 1044 | if (err) |
64eccd00 | 1045 | goto err_entry_add; |
22a67766 | 1046 | |
c4c2dc54 | 1047 | return entry; |
22a67766 | 1048 | |
64eccd00 | 1049 | err_entry_add: |
c4c2dc54 JP |
1050 | kfree(entry); |
1051 | return ERR_PTR(err); | |
22a67766 JP |
1052 | } |
1053 | ||
c4c2dc54 | 1054 | static void mlxsw_sp_acl_tcam_entry_destroy(struct mlxsw_sp *mlxsw_sp, |
c4c2dc54 | 1055 | struct mlxsw_sp_acl_tcam_entry *entry) |
22a67766 | 1056 | { |
64eccd00 | 1057 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
22a67766 | 1058 | |
e5e7962e JP |
1059 | ops->entry_del(mlxsw_sp, entry->chunk->region->priv, |
1060 | entry->chunk->priv, entry->priv); | |
c4c2dc54 | 1061 | kfree(entry); |
22a67766 JP |
1062 | } |
1063 | ||
2507a64c ND |
1064 | static int |
1065 | mlxsw_sp_acl_tcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp, | |
c4c2dc54 | 1066 | struct mlxsw_sp_acl_tcam_region *region, |
2507a64c ND |
1067 | struct mlxsw_sp_acl_tcam_entry *entry, |
1068 | struct mlxsw_sp_acl_rule_info *rulei) | |
1069 | { | |
1070 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
2507a64c | 1071 | |
42d704e0 | 1072 | return ops->entry_action_replace(mlxsw_sp, region->priv, |
2507a64c ND |
1073 | entry->priv, rulei); |
1074 | } | |
1075 | ||
7fd056c2 AS |
1076 | static int |
1077 | mlxsw_sp_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp, | |
1078 | struct mlxsw_sp_acl_tcam_entry *entry, | |
1079 | bool *activity) | |
1080 | { | |
64eccd00 | 1081 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
7fd056c2 | 1082 | |
e5e7962e | 1083 | return ops->entry_activity_get(mlxsw_sp, entry->chunk->region->priv, |
64eccd00 | 1084 | entry->priv, activity); |
7fd056c2 AS |
1085 | } |
1086 | ||
c4c2dc54 | 1087 | static int mlxsw_sp_acl_tcam_ventry_add(struct mlxsw_sp *mlxsw_sp, |
2802aadf | 1088 | struct mlxsw_sp_acl_tcam_vgroup *vgroup, |
c4c2dc54 JP |
1089 | struct mlxsw_sp_acl_tcam_ventry *ventry, |
1090 | struct mlxsw_sp_acl_rule_info *rulei) | |
1091 | { | |
1263a9ab | 1092 | struct mlxsw_sp_acl_tcam_vregion *vregion; |
c4c2dc54 JP |
1093 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
1094 | int err; | |
1095 | ||
2802aadf | 1096 | vchunk = mlxsw_sp_acl_tcam_vchunk_get(mlxsw_sp, vgroup, rulei->priority, |
c4c2dc54 JP |
1097 | &rulei->values.elusage); |
1098 | if (IS_ERR(vchunk)) | |
1099 | return PTR_ERR(vchunk); | |
1100 | ||
1101 | ventry->vchunk = vchunk; | |
e5e7962e | 1102 | ventry->rulei = rulei; |
1263a9ab JP |
1103 | vregion = vchunk->vregion; |
1104 | ||
1105 | mutex_lock(&vregion->lock); | |
c4c2dc54 | 1106 | ventry->entry = mlxsw_sp_acl_tcam_entry_create(mlxsw_sp, ventry, |
e5e7962e | 1107 | vchunk->chunk); |
c4c2dc54 | 1108 | if (IS_ERR(ventry->entry)) { |
1263a9ab | 1109 | mutex_unlock(&vregion->lock); |
c4c2dc54 JP |
1110 | err = PTR_ERR(ventry->entry); |
1111 | goto err_entry_create; | |
1112 | } | |
1113 | ||
e5e7962e | 1114 | list_add_tail(&ventry->list, &vchunk->ventry_list); |
6f9579d4 | 1115 | mlxsw_sp_acl_tcam_rehash_ctx_vchunk_changed(vchunk); |
1263a9ab | 1116 | mutex_unlock(&vregion->lock); |
e5e7962e | 1117 | |
c4c2dc54 JP |
1118 | return 0; |
1119 | ||
1120 | err_entry_create: | |
1121 | mlxsw_sp_acl_tcam_vchunk_put(mlxsw_sp, vchunk); | |
1122 | return err; | |
1123 | } | |
1124 | ||
1125 | static void mlxsw_sp_acl_tcam_ventry_del(struct mlxsw_sp *mlxsw_sp, | |
1126 | struct mlxsw_sp_acl_tcam_ventry *ventry) | |
1127 | { | |
1128 | struct mlxsw_sp_acl_tcam_vchunk *vchunk = ventry->vchunk; | |
1263a9ab | 1129 | struct mlxsw_sp_acl_tcam_vregion *vregion = vchunk->vregion; |
c4c2dc54 | 1130 | |
1263a9ab | 1131 | mutex_lock(&vregion->lock); |
6f9579d4 | 1132 | mlxsw_sp_acl_tcam_rehash_ctx_vchunk_changed(vchunk); |
e5e7962e JP |
1133 | list_del(&ventry->list); |
1134 | mlxsw_sp_acl_tcam_entry_destroy(mlxsw_sp, ventry->entry); | |
1263a9ab | 1135 | mutex_unlock(&vregion->lock); |
c4c2dc54 JP |
1136 | mlxsw_sp_acl_tcam_vchunk_put(mlxsw_sp, vchunk); |
1137 | } | |
1138 | ||
1139 | static int | |
1140 | mlxsw_sp_acl_tcam_ventry_action_replace(struct mlxsw_sp *mlxsw_sp, | |
1141 | struct mlxsw_sp_acl_tcam_ventry *ventry, | |
1142 | struct mlxsw_sp_acl_rule_info *rulei) | |
1143 | { | |
1144 | struct mlxsw_sp_acl_tcam_vchunk *vchunk = ventry->vchunk; | |
1145 | ||
1146 | return mlxsw_sp_acl_tcam_entry_action_replace(mlxsw_sp, | |
1147 | vchunk->vregion->region, | |
1148 | ventry->entry, rulei); | |
1149 | } | |
1150 | ||
1151 | static int | |
1152 | mlxsw_sp_acl_tcam_ventry_activity_get(struct mlxsw_sp *mlxsw_sp, | |
1153 | struct mlxsw_sp_acl_tcam_ventry *ventry, | |
1154 | bool *activity) | |
1155 | { | |
c4c2dc54 | 1156 | return mlxsw_sp_acl_tcam_entry_activity_get(mlxsw_sp, |
c4c2dc54 JP |
1157 | ventry->entry, activity); |
1158 | } | |
1159 | ||
e5e7962e JP |
1160 | static int |
1161 | mlxsw_sp_acl_tcam_ventry_migrate(struct mlxsw_sp *mlxsw_sp, | |
1162 | struct mlxsw_sp_acl_tcam_ventry *ventry, | |
c9c9af91 JP |
1163 | struct mlxsw_sp_acl_tcam_chunk *chunk, |
1164 | int *credits) | |
e5e7962e | 1165 | { |
2c331593 | 1166 | struct mlxsw_sp_acl_tcam_entry *new_entry; |
e5e7962e | 1167 | |
6ca219e7 | 1168 | /* First check if the entry is not already where we want it to be. */ |
2c331593 | 1169 | if (ventry->entry->chunk == chunk) |
6ca219e7 JP |
1170 | return 0; |
1171 | ||
c9c9af91 JP |
1172 | if (--(*credits) < 0) |
1173 | return 0; | |
1174 | ||
2c331593 JP |
1175 | new_entry = mlxsw_sp_acl_tcam_entry_create(mlxsw_sp, ventry, chunk); |
1176 | if (IS_ERR(new_entry)) | |
1177 | return PTR_ERR(new_entry); | |
e5e7962e | 1178 | mlxsw_sp_acl_tcam_entry_destroy(mlxsw_sp, ventry->entry); |
2c331593 | 1179 | ventry->entry = new_entry; |
e5e7962e JP |
1180 | return 0; |
1181 | } | |
1182 | ||
1183 | static int | |
844f01da JP |
1184 | mlxsw_sp_acl_tcam_vchunk_migrate_start(struct mlxsw_sp *mlxsw_sp, |
1185 | struct mlxsw_sp_acl_tcam_vchunk *vchunk, | |
1186 | struct mlxsw_sp_acl_tcam_region *region, | |
1187 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx) | |
e5e7962e | 1188 | { |
e1d2f7a9 | 1189 | struct mlxsw_sp_acl_tcam_chunk *new_chunk; |
e5e7962e | 1190 | |
e1d2f7a9 | 1191 | new_chunk = mlxsw_sp_acl_tcam_chunk_create(mlxsw_sp, vchunk, region); |
44fd86cb | 1192 | if (IS_ERR(new_chunk)) |
e1d2f7a9 | 1193 | return PTR_ERR(new_chunk); |
e1d2f7a9 JP |
1194 | vchunk->chunk2 = vchunk->chunk; |
1195 | vchunk->chunk = new_chunk; | |
6f9579d4 JP |
1196 | ctx->current_vchunk = vchunk; |
1197 | ctx->start_ventry = NULL; | |
1198 | ctx->stop_ventry = NULL; | |
844f01da JP |
1199 | return 0; |
1200 | } | |
1201 | ||
1202 | static void | |
1203 | mlxsw_sp_acl_tcam_vchunk_migrate_end(struct mlxsw_sp *mlxsw_sp, | |
6f9579d4 JP |
1204 | struct mlxsw_sp_acl_tcam_vchunk *vchunk, |
1205 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx) | |
844f01da JP |
1206 | { |
1207 | mlxsw_sp_acl_tcam_chunk_destroy(mlxsw_sp, vchunk->chunk2); | |
1208 | vchunk->chunk2 = NULL; | |
6f9579d4 | 1209 | ctx->current_vchunk = NULL; |
844f01da JP |
1210 | } |
1211 | ||
1212 | static int | |
1213 | mlxsw_sp_acl_tcam_vchunk_migrate_one(struct mlxsw_sp *mlxsw_sp, | |
1214 | struct mlxsw_sp_acl_tcam_vchunk *vchunk, | |
1215 | struct mlxsw_sp_acl_tcam_region *region, | |
c9c9af91 JP |
1216 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx, |
1217 | int *credits) | |
844f01da JP |
1218 | { |
1219 | struct mlxsw_sp_acl_tcam_ventry *ventry; | |
1220 | int err; | |
844f01da | 1221 | |
84350051 JP |
1222 | if (vchunk->chunk->region != region) { |
1223 | err = mlxsw_sp_acl_tcam_vchunk_migrate_start(mlxsw_sp, vchunk, | |
1224 | region, ctx); | |
1225 | if (err) | |
1226 | return err; | |
1227 | } else if (!vchunk->chunk2) { | |
1228 | /* The chunk is already as it should be, nothing to do. */ | |
1229 | return 0; | |
1230 | } | |
e1d2f7a9 | 1231 | |
6f9579d4 JP |
1232 | /* If the migration got interrupted, we have the ventry to start from |
1233 | * stored in context. | |
1234 | */ | |
1235 | if (ctx->start_ventry) | |
1236 | ventry = ctx->start_ventry; | |
1237 | else | |
1238 | ventry = list_first_entry(&vchunk->ventry_list, | |
1239 | typeof(*ventry), list); | |
1240 | ||
1241 | list_for_each_entry_from(ventry, &vchunk->ventry_list, list) { | |
1242 | /* During rollback, once we reach the ventry that failed | |
1243 | * to migrate, we are done. | |
1244 | */ | |
1245 | if (ventry == ctx->stop_ventry) | |
1246 | break; | |
1247 | ||
e5e7962e | 1248 | err = mlxsw_sp_acl_tcam_ventry_migrate(mlxsw_sp, ventry, |
c9c9af91 | 1249 | vchunk->chunk, credits); |
e5e7962e | 1250 | if (err) { |
7c33c72b JP |
1251 | if (ctx->this_is_rollback) { |
1252 | /* Save the ventry which we ended with and try | |
1253 | * to continue later on. | |
1254 | */ | |
1255 | ctx->start_ventry = ventry; | |
e5e7962e | 1256 | return err; |
7c33c72b | 1257 | } |
84350051 JP |
1258 | /* Swap the chunk and chunk2 pointers so the follow-up |
1259 | * rollback call will see the original chunk pointer | |
1260 | * in vchunk->chunk. | |
1261 | */ | |
1262 | swap(vchunk->chunk, vchunk->chunk2); | |
6f9579d4 JP |
1263 | /* The rollback has to be done from beginning of the |
1264 | * chunk, that is why we have to null the start_ventry. | |
1265 | * However, we know where to stop the rollback, | |
1266 | * at the current ventry. | |
1267 | */ | |
1268 | ctx->start_ventry = NULL; | |
1269 | ctx->stop_ventry = ventry; | |
84350051 | 1270 | return err; |
c9c9af91 JP |
1271 | } else if (*credits < 0) { |
1272 | /* We are out of credits, the rest of the ventries | |
6f9579d4 JP |
1273 | * will be migrated later. Save the ventry |
1274 | * which we ended with. | |
c9c9af91 | 1275 | */ |
6f9579d4 | 1276 | ctx->start_ventry = ventry; |
c9c9af91 | 1277 | return 0; |
e5e7962e JP |
1278 | } |
1279 | } | |
844f01da | 1280 | |
6f9579d4 | 1281 | mlxsw_sp_acl_tcam_vchunk_migrate_end(mlxsw_sp, vchunk, ctx); |
e5e7962e | 1282 | return 0; |
e5e7962e JP |
1283 | } |
1284 | ||
1285 | static int | |
1286 | mlxsw_sp_acl_tcam_vchunk_migrate_all(struct mlxsw_sp *mlxsw_sp, | |
220f4fba | 1287 | struct mlxsw_sp_acl_tcam_vregion *vregion, |
c9c9af91 JP |
1288 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx, |
1289 | int *credits) | |
e5e7962e JP |
1290 | { |
1291 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; | |
1292 | int err; | |
1293 | ||
6f9579d4 JP |
1294 | /* If the migration got interrupted, we have the vchunk |
1295 | * we are working on stored in context. | |
1296 | */ | |
1297 | if (ctx->current_vchunk) | |
1298 | vchunk = ctx->current_vchunk; | |
1299 | else | |
1300 | vchunk = list_first_entry(&vregion->vchunk_list, | |
1301 | typeof(*vchunk), list); | |
1302 | ||
1303 | list_for_each_entry_from(vchunk, &vregion->vchunk_list, list) { | |
e5e7962e | 1304 | err = mlxsw_sp_acl_tcam_vchunk_migrate_one(mlxsw_sp, vchunk, |
a86838e4 | 1305 | vregion->region, |
c9c9af91 JP |
1306 | ctx, credits); |
1307 | if (err || *credits < 0) | |
84350051 | 1308 | return err; |
e5e7962e JP |
1309 | } |
1310 | return 0; | |
e5e7962e JP |
1311 | } |
1312 | ||
1313 | static int | |
1314 | mlxsw_sp_acl_tcam_vregion_migrate(struct mlxsw_sp *mlxsw_sp, | |
1315 | struct mlxsw_sp_acl_tcam_vregion *vregion, | |
c9c9af91 JP |
1316 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx, |
1317 | int *credits) | |
e5e7962e | 1318 | { |
84350051 | 1319 | int err, err2; |
e5e7962e | 1320 | |
3985de72 | 1321 | trace_mlxsw_sp_acl_tcam_vregion_migrate(mlxsw_sp, vregion); |
1263a9ab | 1322 | mutex_lock(&vregion->lock); |
c9c9af91 JP |
1323 | err = mlxsw_sp_acl_tcam_vchunk_migrate_all(mlxsw_sp, vregion, |
1324 | ctx, credits); | |
84350051 JP |
1325 | if (err) { |
1326 | /* In case migration was not successful, we need to swap | |
1327 | * so the original region pointer is assigned again | |
1328 | * to vregion->region. | |
1329 | */ | |
1330 | swap(vregion->region, vregion->region2); | |
6f9579d4 | 1331 | ctx->current_vchunk = NULL; |
84350051 | 1332 | ctx->this_is_rollback = true; |
c9c9af91 JP |
1333 | err2 = mlxsw_sp_acl_tcam_vchunk_migrate_all(mlxsw_sp, vregion, |
1334 | ctx, credits); | |
f3d4ef1a | 1335 | if (err2) { |
a4e76ba6 JP |
1336 | trace_mlxsw_sp_acl_tcam_vregion_rehash_rollback_failed(mlxsw_sp, |
1337 | vregion); | |
f3d4ef1a | 1338 | dev_err(mlxsw_sp->bus_info->dev, "Failed to rollback during vregion migration fail\n"); |
7c33c72b | 1339 | /* Let the rollback to be continued later on. */ |
f3d4ef1a | 1340 | } |
84350051 | 1341 | } |
a9550d0f | 1342 | mutex_unlock(&vregion->lock); |
6375da3d | 1343 | trace_mlxsw_sp_acl_tcam_vregion_migrate_end(mlxsw_sp, vregion); |
e5e7962e JP |
1344 | return err; |
1345 | } | |
1346 | ||
c9c9af91 JP |
1347 | static bool |
1348 | mlxsw_sp_acl_tcam_vregion_rehash_in_progress(const struct mlxsw_sp_acl_tcam_rehash_ctx *ctx) | |
1349 | { | |
1350 | return ctx->hints_priv; | |
1351 | } | |
1352 | ||
e5e7962e | 1353 | static int |
1667f766 JP |
1354 | mlxsw_sp_acl_tcam_vregion_rehash_start(struct mlxsw_sp *mlxsw_sp, |
1355 | struct mlxsw_sp_acl_tcam_vregion *vregion, | |
1356 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx) | |
e5e7962e JP |
1357 | { |
1358 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
a9550d0f | 1359 | unsigned int priority = mlxsw_sp_acl_tcam_vregion_prio(vregion); |
a86838e4 | 1360 | struct mlxsw_sp_acl_tcam_region *new_region; |
e5e7962e | 1361 | void *hints_priv; |
a9550d0f | 1362 | int err; |
e5e7962e | 1363 | |
3985de72 | 1364 | trace_mlxsw_sp_acl_tcam_vregion_rehash(mlxsw_sp, vregion); |
e5e7962e JP |
1365 | |
1366 | hints_priv = ops->region_rehash_hints_get(vregion->region->priv); | |
1667f766 JP |
1367 | if (IS_ERR(hints_priv)) |
1368 | return PTR_ERR(hints_priv); | |
1369 | ||
a86838e4 JP |
1370 | new_region = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, vregion->tcam, |
1371 | vregion, hints_priv); | |
1372 | if (IS_ERR(new_region)) { | |
1373 | err = PTR_ERR(new_region); | |
a9550d0f JP |
1374 | goto err_region_create; |
1375 | } | |
1376 | ||
a86838e4 JP |
1377 | /* vregion->region contains the pointer to the new region |
1378 | * we are going to migrate to. | |
1379 | */ | |
1380 | vregion->region2 = vregion->region; | |
1381 | vregion->region = new_region; | |
a9550d0f | 1382 | err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp, |
a86838e4 JP |
1383 | vregion->region2->group, |
1384 | new_region, priority, | |
1385 | vregion->region2); | |
a9550d0f JP |
1386 | if (err) |
1387 | goto err_group_region_attach; | |
1388 | ||
1667f766 | 1389 | ctx->hints_priv = hints_priv; |
220f4fba | 1390 | ctx->this_is_rollback = false; |
1667f766 JP |
1391 | |
1392 | return 0; | |
a9550d0f JP |
1393 | |
1394 | err_group_region_attach: | |
a86838e4 | 1395 | vregion->region = vregion->region2; |
a9550d0f | 1396 | vregion->region2 = NULL; |
a86838e4 | 1397 | mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, new_region); |
a9550d0f JP |
1398 | err_region_create: |
1399 | ops->region_rehash_hints_put(hints_priv); | |
1400 | return err; | |
1667f766 JP |
1401 | } |
1402 | ||
1403 | static void | |
1404 | mlxsw_sp_acl_tcam_vregion_rehash_end(struct mlxsw_sp *mlxsw_sp, | |
1405 | struct mlxsw_sp_acl_tcam_vregion *vregion, | |
1406 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx) | |
1407 | { | |
a9550d0f | 1408 | struct mlxsw_sp_acl_tcam_region *unused_region = vregion->region2; |
1667f766 JP |
1409 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; |
1410 | ||
7c33c72b JP |
1411 | vregion->region2 = NULL; |
1412 | mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, unused_region); | |
1413 | mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, unused_region); | |
1667f766 JP |
1414 | ops->region_rehash_hints_put(ctx->hints_priv); |
1415 | ctx->hints_priv = NULL; | |
1416 | } | |
1417 | ||
b2c091ce | 1418 | static void |
1667f766 | 1419 | mlxsw_sp_acl_tcam_vregion_rehash(struct mlxsw_sp *mlxsw_sp, |
c9c9af91 JP |
1420 | struct mlxsw_sp_acl_tcam_vregion *vregion, |
1421 | int *credits) | |
1667f766 JP |
1422 | { |
1423 | struct mlxsw_sp_acl_tcam_rehash_ctx *ctx = &vregion->rehash.ctx; | |
1424 | int err; | |
1425 | ||
c9c9af91 JP |
1426 | /* Check if the previous rehash work was interrupted |
1427 | * which means we have to continue it now. | |
1428 | * If not, start a new rehash. | |
1429 | */ | |
1430 | if (!mlxsw_sp_acl_tcam_vregion_rehash_in_progress(ctx)) { | |
1431 | err = mlxsw_sp_acl_tcam_vregion_rehash_start(mlxsw_sp, | |
1432 | vregion, ctx); | |
1433 | if (err) { | |
1434 | if (err != -EAGAIN) | |
1435 | dev_err(mlxsw_sp->bus_info->dev, "Failed get rehash hints\n"); | |
b2c091ce | 1436 | return; |
c9c9af91 | 1437 | } |
e5e7962e JP |
1438 | } |
1439 | ||
c9c9af91 JP |
1440 | err = mlxsw_sp_acl_tcam_vregion_migrate(mlxsw_sp, vregion, |
1441 | ctx, credits); | |
e5e7962e JP |
1442 | if (err) { |
1443 | dev_err(mlxsw_sp->bus_info->dev, "Failed to migrate vregion\n"); | |
e5e7962e JP |
1444 | } |
1445 | ||
c9c9af91 JP |
1446 | if (*credits >= 0) |
1447 | mlxsw_sp_acl_tcam_vregion_rehash_end(mlxsw_sp, vregion, ctx); | |
e5e7962e JP |
1448 | } |
1449 | ||
74cbc3c0 IS |
1450 | static int |
1451 | mlxsw_sp_acl_tcam_region_rehash_intrvl_get(struct devlink *devlink, u32 id, | |
1452 | struct devlink_param_gset_ctx *ctx) | |
1453 | { | |
1454 | struct mlxsw_core *mlxsw_core = devlink_priv(devlink); | |
1455 | struct mlxsw_sp_acl_tcam *tcam; | |
1456 | struct mlxsw_sp *mlxsw_sp; | |
1457 | ||
1458 | mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); | |
1459 | tcam = mlxsw_sp_acl_to_tcam(mlxsw_sp->acl); | |
1460 | ctx->val.vu32 = tcam->vregion_rehash_intrvl; | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
1465 | static int | |
1466 | mlxsw_sp_acl_tcam_region_rehash_intrvl_set(struct devlink *devlink, u32 id, | |
1467 | struct devlink_param_gset_ctx *ctx) | |
1468 | { | |
1469 | struct mlxsw_core *mlxsw_core = devlink_priv(devlink); | |
1470 | struct mlxsw_sp_acl_tcam_vregion *vregion; | |
1471 | struct mlxsw_sp_acl_tcam *tcam; | |
1472 | struct mlxsw_sp *mlxsw_sp; | |
1473 | u32 val = ctx->val.vu32; | |
1474 | ||
1475 | if (val < MLXSW_SP_ACL_TCAM_VREGION_REHASH_INTRVL_MIN && val) | |
1476 | return -EINVAL; | |
1477 | ||
1478 | mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); | |
1479 | tcam = mlxsw_sp_acl_to_tcam(mlxsw_sp->acl); | |
1480 | tcam->vregion_rehash_intrvl = val; | |
1481 | mutex_lock(&tcam->lock); | |
1482 | list_for_each_entry(vregion, &tcam->vregion_list, tlist) { | |
1483 | if (val) | |
1484 | mlxsw_core_schedule_dw(&vregion->rehash.dw, 0); | |
1485 | else | |
1486 | cancel_delayed_work_sync(&vregion->rehash.dw); | |
1487 | } | |
1488 | mutex_unlock(&tcam->lock); | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | static const struct devlink_param mlxsw_sp_acl_tcam_rehash_params[] = { | |
1493 | DEVLINK_PARAM_DRIVER(MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL, | |
1494 | "acl_region_rehash_interval", | |
1495 | DEVLINK_PARAM_TYPE_U32, | |
1496 | BIT(DEVLINK_PARAM_CMODE_RUNTIME), | |
1497 | mlxsw_sp_acl_tcam_region_rehash_intrvl_get, | |
1498 | mlxsw_sp_acl_tcam_region_rehash_intrvl_set, | |
1499 | NULL), | |
1500 | }; | |
1501 | ||
1502 | static int mlxsw_sp_acl_tcam_rehash_params_register(struct mlxsw_sp *mlxsw_sp) | |
1503 | { | |
1504 | struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); | |
1505 | ||
1506 | if (!mlxsw_sp->acl_tcam_ops->region_rehash_hints_get) | |
1507 | return 0; | |
1508 | ||
1509 | return devl_params_register(devlink, mlxsw_sp_acl_tcam_rehash_params, | |
1510 | ARRAY_SIZE(mlxsw_sp_acl_tcam_rehash_params)); | |
1511 | } | |
1512 | ||
1513 | static void | |
1514 | mlxsw_sp_acl_tcam_rehash_params_unregister(struct mlxsw_sp *mlxsw_sp) | |
1515 | { | |
1516 | struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); | |
1517 | ||
1518 | if (!mlxsw_sp->acl_tcam_ops->region_rehash_hints_get) | |
1519 | return; | |
1520 | ||
1521 | devl_params_unregister(devlink, mlxsw_sp_acl_tcam_rehash_params, | |
1522 | ARRAY_SIZE(mlxsw_sp_acl_tcam_rehash_params)); | |
1523 | } | |
1524 | ||
194ab947 IS |
1525 | int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, |
1526 | struct mlxsw_sp_acl_tcam *tcam) | |
1527 | { | |
1528 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
1529 | u64 max_tcam_regions; | |
1530 | u64 max_regions; | |
1531 | u64 max_groups; | |
1532 | int err; | |
1533 | ||
1534 | mutex_init(&tcam->lock); | |
1535 | tcam->vregion_rehash_intrvl = | |
1536 | MLXSW_SP_ACL_TCAM_VREGION_REHASH_INTRVL_DFLT; | |
1537 | INIT_LIST_HEAD(&tcam->vregion_list); | |
1538 | ||
74cbc3c0 IS |
1539 | err = mlxsw_sp_acl_tcam_rehash_params_register(mlxsw_sp); |
1540 | if (err) | |
1541 | goto err_rehash_params_register; | |
1542 | ||
194ab947 IS |
1543 | max_tcam_regions = MLXSW_CORE_RES_GET(mlxsw_sp->core, |
1544 | ACL_MAX_TCAM_REGIONS); | |
1545 | max_regions = MLXSW_CORE_RES_GET(mlxsw_sp->core, ACL_MAX_REGIONS); | |
1546 | ||
1547 | /* Use 1:1 mapping between ACL region and TCAM region */ | |
1548 | if (max_tcam_regions < max_regions) | |
1549 | max_regions = max_tcam_regions; | |
1550 | ||
1551 | tcam->used_regions = bitmap_zalloc(max_regions, GFP_KERNEL); | |
1552 | if (!tcam->used_regions) { | |
1553 | err = -ENOMEM; | |
1554 | goto err_alloc_used_regions; | |
1555 | } | |
1556 | tcam->max_regions = max_regions; | |
1557 | ||
1558 | max_groups = MLXSW_CORE_RES_GET(mlxsw_sp->core, ACL_MAX_GROUPS); | |
1559 | tcam->used_groups = bitmap_zalloc(max_groups, GFP_KERNEL); | |
1560 | if (!tcam->used_groups) { | |
1561 | err = -ENOMEM; | |
1562 | goto err_alloc_used_groups; | |
1563 | } | |
1564 | tcam->max_groups = max_groups; | |
1565 | tcam->max_group_size = MLXSW_CORE_RES_GET(mlxsw_sp->core, | |
1566 | ACL_MAX_GROUP_SIZE); | |
1567 | ||
1568 | err = ops->init(mlxsw_sp, tcam->priv, tcam); | |
1569 | if (err) | |
1570 | goto err_tcam_init; | |
1571 | ||
1572 | return 0; | |
1573 | ||
1574 | err_tcam_init: | |
1575 | bitmap_free(tcam->used_groups); | |
1576 | err_alloc_used_groups: | |
1577 | bitmap_free(tcam->used_regions); | |
1578 | err_alloc_used_regions: | |
74cbc3c0 IS |
1579 | mlxsw_sp_acl_tcam_rehash_params_unregister(mlxsw_sp); |
1580 | err_rehash_params_register: | |
194ab947 IS |
1581 | mutex_destroy(&tcam->lock); |
1582 | return err; | |
1583 | } | |
1584 | ||
1585 | void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, | |
1586 | struct mlxsw_sp_acl_tcam *tcam) | |
1587 | { | |
1588 | const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops; | |
1589 | ||
1590 | ops->fini(mlxsw_sp, tcam->priv); | |
1591 | bitmap_free(tcam->used_groups); | |
1592 | bitmap_free(tcam->used_regions); | |
74cbc3c0 | 1593 | mlxsw_sp_acl_tcam_rehash_params_unregister(mlxsw_sp); |
194ab947 IS |
1594 | mutex_destroy(&tcam->lock); |
1595 | } | |
1596 | ||
22a67766 JP |
1597 | static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv4[] = { |
1598 | MLXSW_AFK_ELEMENT_SRC_SYS_PORT, | |
c43ea06d JP |
1599 | MLXSW_AFK_ELEMENT_DMAC_32_47, |
1600 | MLXSW_AFK_ELEMENT_DMAC_0_31, | |
1601 | MLXSW_AFK_ELEMENT_SMAC_32_47, | |
1602 | MLXSW_AFK_ELEMENT_SMAC_0_31, | |
22a67766 JP |
1603 | MLXSW_AFK_ELEMENT_ETHERTYPE, |
1604 | MLXSW_AFK_ELEMENT_IP_PROTO, | |
c43ea06d JP |
1605 | MLXSW_AFK_ELEMENT_SRC_IP_0_31, |
1606 | MLXSW_AFK_ELEMENT_DST_IP_0_31, | |
22a67766 JP |
1607 | MLXSW_AFK_ELEMENT_DST_L4_PORT, |
1608 | MLXSW_AFK_ELEMENT_SRC_L4_PORT, | |
9caab08a PM |
1609 | MLXSW_AFK_ELEMENT_VID, |
1610 | MLXSW_AFK_ELEMENT_PCP, | |
8a41d845 | 1611 | MLXSW_AFK_ELEMENT_TCP_FLAGS, |
046759a6 | 1612 | MLXSW_AFK_ELEMENT_IP_TTL_, |
abac7b01 OG |
1613 | MLXSW_AFK_ELEMENT_IP_ECN, |
1614 | MLXSW_AFK_ELEMENT_IP_DSCP, | |
22a67766 JP |
1615 | }; |
1616 | ||
1617 | static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv6[] = { | |
1618 | MLXSW_AFK_ELEMENT_ETHERTYPE, | |
1619 | MLXSW_AFK_ELEMENT_IP_PROTO, | |
c43ea06d JP |
1620 | MLXSW_AFK_ELEMENT_SRC_IP_96_127, |
1621 | MLXSW_AFK_ELEMENT_SRC_IP_64_95, | |
1622 | MLXSW_AFK_ELEMENT_SRC_IP_32_63, | |
1623 | MLXSW_AFK_ELEMENT_SRC_IP_0_31, | |
1624 | MLXSW_AFK_ELEMENT_DST_IP_96_127, | |
1625 | MLXSW_AFK_ELEMENT_DST_IP_64_95, | |
1626 | MLXSW_AFK_ELEMENT_DST_IP_32_63, | |
1627 | MLXSW_AFK_ELEMENT_DST_IP_0_31, | |
22a67766 JP |
1628 | MLXSW_AFK_ELEMENT_DST_L4_PORT, |
1629 | MLXSW_AFK_ELEMENT_SRC_L4_PORT, | |
1630 | }; | |
1631 | ||
1632 | static const struct mlxsw_sp_acl_tcam_pattern mlxsw_sp_acl_tcam_patterns[] = { | |
1633 | { | |
1634 | .elements = mlxsw_sp_acl_tcam_pattern_ipv4, | |
1635 | .elements_count = ARRAY_SIZE(mlxsw_sp_acl_tcam_pattern_ipv4), | |
1636 | }, | |
1637 | { | |
1638 | .elements = mlxsw_sp_acl_tcam_pattern_ipv6, | |
1639 | .elements_count = ARRAY_SIZE(mlxsw_sp_acl_tcam_pattern_ipv6), | |
1640 | }, | |
1641 | }; | |
1642 | ||
1643 | #define MLXSW_SP_ACL_TCAM_PATTERNS_COUNT \ | |
1644 | ARRAY_SIZE(mlxsw_sp_acl_tcam_patterns) | |
1645 | ||
1646 | struct mlxsw_sp_acl_tcam_flower_ruleset { | |
2802aadf | 1647 | struct mlxsw_sp_acl_tcam_vgroup vgroup; |
22a67766 JP |
1648 | }; |
1649 | ||
1650 | struct mlxsw_sp_acl_tcam_flower_rule { | |
c4c2dc54 | 1651 | struct mlxsw_sp_acl_tcam_ventry ventry; |
22a67766 JP |
1652 | }; |
1653 | ||
1654 | static int | |
1655 | mlxsw_sp_acl_tcam_flower_ruleset_add(struct mlxsw_sp *mlxsw_sp, | |
bab5c1cf | 1656 | struct mlxsw_sp_acl_tcam *tcam, |
e2f2a1fd | 1657 | void *ruleset_priv, |
593bb843 JP |
1658 | struct mlxsw_afk_element_usage *tmplt_elusage, |
1659 | unsigned int *p_min_prio, | |
1660 | unsigned int *p_max_prio) | |
22a67766 JP |
1661 | { |
1662 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
22a67766 | 1663 | |
2802aadf JP |
1664 | return mlxsw_sp_acl_tcam_vgroup_add(mlxsw_sp, tcam, &ruleset->vgroup, |
1665 | mlxsw_sp_acl_tcam_patterns, | |
1666 | MLXSW_SP_ACL_TCAM_PATTERNS_COUNT, | |
593bb843 JP |
1667 | tmplt_elusage, true, |
1668 | p_min_prio, p_max_prio); | |
22a67766 JP |
1669 | } |
1670 | ||
1671 | static void | |
1672 | mlxsw_sp_acl_tcam_flower_ruleset_del(struct mlxsw_sp *mlxsw_sp, | |
1673 | void *ruleset_priv) | |
1674 | { | |
1675 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
1676 | ||
2802aadf | 1677 | mlxsw_sp_acl_tcam_vgroup_del(&ruleset->vgroup); |
22a67766 JP |
1678 | } |
1679 | ||
1680 | static int | |
1681 | mlxsw_sp_acl_tcam_flower_ruleset_bind(struct mlxsw_sp *mlxsw_sp, | |
1682 | void *ruleset_priv, | |
4b23258d JP |
1683 | struct mlxsw_sp_port *mlxsw_sp_port, |
1684 | bool ingress) | |
22a67766 JP |
1685 | { |
1686 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
1687 | ||
2802aadf | 1688 | return mlxsw_sp_acl_tcam_group_bind(mlxsw_sp, &ruleset->vgroup.group, |
4b23258d | 1689 | mlxsw_sp_port, ingress); |
22a67766 JP |
1690 | } |
1691 | ||
1692 | static void | |
1693 | mlxsw_sp_acl_tcam_flower_ruleset_unbind(struct mlxsw_sp *mlxsw_sp, | |
02caf499 | 1694 | void *ruleset_priv, |
4b23258d JP |
1695 | struct mlxsw_sp_port *mlxsw_sp_port, |
1696 | bool ingress) | |
22a67766 JP |
1697 | { |
1698 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
1699 | ||
2802aadf | 1700 | mlxsw_sp_acl_tcam_group_unbind(mlxsw_sp, &ruleset->vgroup.group, |
4b23258d | 1701 | mlxsw_sp_port, ingress); |
22a67766 JP |
1702 | } |
1703 | ||
0ade3b64 JP |
1704 | static u16 |
1705 | mlxsw_sp_acl_tcam_flower_ruleset_group_id(void *ruleset_priv) | |
1706 | { | |
1707 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
1708 | ||
2802aadf | 1709 | return mlxsw_sp_acl_tcam_group_id(&ruleset->vgroup.group); |
0ade3b64 JP |
1710 | } |
1711 | ||
22a67766 JP |
1712 | static int |
1713 | mlxsw_sp_acl_tcam_flower_rule_add(struct mlxsw_sp *mlxsw_sp, | |
1714 | void *ruleset_priv, void *rule_priv, | |
1715 | struct mlxsw_sp_acl_rule_info *rulei) | |
1716 | { | |
1717 | struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; | |
1718 | struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; | |
1719 | ||
2802aadf | 1720 | return mlxsw_sp_acl_tcam_ventry_add(mlxsw_sp, &ruleset->vgroup, |
c4c2dc54 | 1721 | &rule->ventry, rulei); |
22a67766 JP |
1722 | } |
1723 | ||
1724 | static void | |
1725 | mlxsw_sp_acl_tcam_flower_rule_del(struct mlxsw_sp *mlxsw_sp, void *rule_priv) | |
1726 | { | |
1727 | struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; | |
1728 | ||
c4c2dc54 | 1729 | mlxsw_sp_acl_tcam_ventry_del(mlxsw_sp, &rule->ventry); |
22a67766 JP |
1730 | } |
1731 | ||
2507a64c ND |
1732 | static int |
1733 | mlxsw_sp_acl_tcam_flower_rule_action_replace(struct mlxsw_sp *mlxsw_sp, | |
2507a64c ND |
1734 | void *rule_priv, |
1735 | struct mlxsw_sp_acl_rule_info *rulei) | |
1736 | { | |
1737 | return -EOPNOTSUPP; | |
1738 | } | |
1739 | ||
7fd056c2 AS |
1740 | static int |
1741 | mlxsw_sp_acl_tcam_flower_rule_activity_get(struct mlxsw_sp *mlxsw_sp, | |
1742 | void *rule_priv, bool *activity) | |
1743 | { | |
1744 | struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; | |
1745 | ||
c4c2dc54 JP |
1746 | return mlxsw_sp_acl_tcam_ventry_activity_get(mlxsw_sp, &rule->ventry, |
1747 | activity); | |
7fd056c2 AS |
1748 | } |
1749 | ||
22a67766 JP |
1750 | static const struct mlxsw_sp_acl_profile_ops mlxsw_sp_acl_tcam_flower_ops = { |
1751 | .ruleset_priv_size = sizeof(struct mlxsw_sp_acl_tcam_flower_ruleset), | |
1752 | .ruleset_add = mlxsw_sp_acl_tcam_flower_ruleset_add, | |
1753 | .ruleset_del = mlxsw_sp_acl_tcam_flower_ruleset_del, | |
1754 | .ruleset_bind = mlxsw_sp_acl_tcam_flower_ruleset_bind, | |
1755 | .ruleset_unbind = mlxsw_sp_acl_tcam_flower_ruleset_unbind, | |
0ade3b64 | 1756 | .ruleset_group_id = mlxsw_sp_acl_tcam_flower_ruleset_group_id, |
c4c2dc54 | 1757 | .rule_priv_size = sizeof(struct mlxsw_sp_acl_tcam_flower_rule), |
22a67766 JP |
1758 | .rule_add = mlxsw_sp_acl_tcam_flower_rule_add, |
1759 | .rule_del = mlxsw_sp_acl_tcam_flower_rule_del, | |
2507a64c | 1760 | .rule_action_replace = mlxsw_sp_acl_tcam_flower_rule_action_replace, |
7fd056c2 | 1761 | .rule_activity_get = mlxsw_sp_acl_tcam_flower_rule_activity_get, |
22a67766 JP |
1762 | }; |
1763 | ||
038418ee | 1764 | struct mlxsw_sp_acl_tcam_mr_ruleset { |
b2d6b4d2 | 1765 | struct mlxsw_sp_acl_tcam_vchunk *vchunk; |
2802aadf | 1766 | struct mlxsw_sp_acl_tcam_vgroup vgroup; |
038418ee JP |
1767 | }; |
1768 | ||
1769 | struct mlxsw_sp_acl_tcam_mr_rule { | |
c4c2dc54 | 1770 | struct mlxsw_sp_acl_tcam_ventry ventry; |
038418ee JP |
1771 | }; |
1772 | ||
1a29d293 ND |
1773 | static int |
1774 | mlxsw_sp_acl_tcam_mr_ruleset_add(struct mlxsw_sp *mlxsw_sp, | |
1775 | struct mlxsw_sp_acl_tcam *tcam, | |
1776 | void *ruleset_priv, | |
593bb843 JP |
1777 | struct mlxsw_afk_element_usage *tmplt_elusage, |
1778 | unsigned int *p_min_prio, | |
1779 | unsigned int *p_max_prio) | |
1a29d293 ND |
1780 | { |
1781 | struct mlxsw_sp_acl_tcam_mr_ruleset *ruleset = ruleset_priv; | |
1782 | int err; | |
1783 | ||
2802aadf JP |
1784 | err = mlxsw_sp_acl_tcam_vgroup_add(mlxsw_sp, tcam, &ruleset->vgroup, |
1785 | mlxsw_sp_acl_tcam_patterns, | |
1786 | MLXSW_SP_ACL_TCAM_PATTERNS_COUNT, | |
593bb843 JP |
1787 | tmplt_elusage, false, |
1788 | p_min_prio, p_max_prio); | |
1a29d293 ND |
1789 | if (err) |
1790 | return err; | |
1791 | ||
1792 | /* For most of the TCAM clients it would make sense to take a tcam chunk | |
1793 | * only when the first rule is written. This is not the case for | |
1794 | * multicast router as it is required to bind the multicast router to a | |
1795 | * specific ACL Group ID which must exist in HW before multicast router | |
1796 | * is initialized. | |
1797 | */ | |
b2d6b4d2 | 1798 | ruleset->vchunk = mlxsw_sp_acl_tcam_vchunk_get(mlxsw_sp, |
2802aadf | 1799 | &ruleset->vgroup, 1, |
b2d6b4d2 JP |
1800 | tmplt_elusage); |
1801 | if (IS_ERR(ruleset->vchunk)) { | |
1802 | err = PTR_ERR(ruleset->vchunk); | |
1a29d293 ND |
1803 | goto err_chunk_get; |
1804 | } | |
1805 | ||
1806 | return 0; | |
1807 | ||
1808 | err_chunk_get: | |
2802aadf | 1809 | mlxsw_sp_acl_tcam_vgroup_del(&ruleset->vgroup); |
1a29d293 ND |
1810 | return err; |
1811 | } | |
1812 | ||
1813 | static void | |
1814 | mlxsw_sp_acl_tcam_mr_ruleset_del(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv) | |
1815 | { | |
1816 | struct mlxsw_sp_acl_tcam_mr_ruleset *ruleset = ruleset_priv; | |
1817 | ||
b2d6b4d2 | 1818 | mlxsw_sp_acl_tcam_vchunk_put(mlxsw_sp, ruleset->vchunk); |
2802aadf | 1819 | mlxsw_sp_acl_tcam_vgroup_del(&ruleset->vgroup); |
1a29d293 ND |
1820 | } |
1821 | ||
1822 | static int | |
1823 | mlxsw_sp_acl_tcam_mr_ruleset_bind(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv, | |
1824 | struct mlxsw_sp_port *mlxsw_sp_port, | |
1825 | bool ingress) | |
1826 | { | |
1827 | /* Binding is done when initializing multicast router */ | |
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | static void | |
1832 | mlxsw_sp_acl_tcam_mr_ruleset_unbind(struct mlxsw_sp *mlxsw_sp, | |
1833 | void *ruleset_priv, | |
1834 | struct mlxsw_sp_port *mlxsw_sp_port, | |
1835 | bool ingress) | |
1836 | { | |
1837 | } | |
1838 | ||
1839 | static u16 | |
1840 | mlxsw_sp_acl_tcam_mr_ruleset_group_id(void *ruleset_priv) | |
1841 | { | |
1842 | struct mlxsw_sp_acl_tcam_mr_ruleset *ruleset = ruleset_priv; | |
1843 | ||
2802aadf | 1844 | return mlxsw_sp_acl_tcam_group_id(&ruleset->vgroup.group); |
1a29d293 ND |
1845 | } |
1846 | ||
1a29d293 ND |
1847 | static int |
1848 | mlxsw_sp_acl_tcam_mr_rule_add(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv, | |
1849 | void *rule_priv, | |
1850 | struct mlxsw_sp_acl_rule_info *rulei) | |
1851 | { | |
1852 | struct mlxsw_sp_acl_tcam_mr_ruleset *ruleset = ruleset_priv; | |
1853 | struct mlxsw_sp_acl_tcam_mr_rule *rule = rule_priv; | |
1854 | ||
2802aadf | 1855 | return mlxsw_sp_acl_tcam_ventry_add(mlxsw_sp, &ruleset->vgroup, |
c4c2dc54 | 1856 | &rule->ventry, rulei); |
1a29d293 ND |
1857 | } |
1858 | ||
1859 | static void | |
1860 | mlxsw_sp_acl_tcam_mr_rule_del(struct mlxsw_sp *mlxsw_sp, void *rule_priv) | |
1861 | { | |
1862 | struct mlxsw_sp_acl_tcam_mr_rule *rule = rule_priv; | |
1863 | ||
c4c2dc54 | 1864 | mlxsw_sp_acl_tcam_ventry_del(mlxsw_sp, &rule->ventry); |
1a29d293 ND |
1865 | } |
1866 | ||
2507a64c ND |
1867 | static int |
1868 | mlxsw_sp_acl_tcam_mr_rule_action_replace(struct mlxsw_sp *mlxsw_sp, | |
42d704e0 | 1869 | void *rule_priv, |
2507a64c ND |
1870 | struct mlxsw_sp_acl_rule_info *rulei) |
1871 | { | |
2507a64c ND |
1872 | struct mlxsw_sp_acl_tcam_mr_rule *rule = rule_priv; |
1873 | ||
c4c2dc54 JP |
1874 | return mlxsw_sp_acl_tcam_ventry_action_replace(mlxsw_sp, &rule->ventry, |
1875 | rulei); | |
2507a64c ND |
1876 | } |
1877 | ||
1a29d293 ND |
1878 | static int |
1879 | mlxsw_sp_acl_tcam_mr_rule_activity_get(struct mlxsw_sp *mlxsw_sp, | |
1880 | void *rule_priv, bool *activity) | |
1881 | { | |
d1314096 | 1882 | *activity = false; |
1a29d293 | 1883 | |
d1314096 | 1884 | return 0; |
1a29d293 ND |
1885 | } |
1886 | ||
1887 | static const struct mlxsw_sp_acl_profile_ops mlxsw_sp_acl_tcam_mr_ops = { | |
1888 | .ruleset_priv_size = sizeof(struct mlxsw_sp_acl_tcam_mr_ruleset), | |
1889 | .ruleset_add = mlxsw_sp_acl_tcam_mr_ruleset_add, | |
1890 | .ruleset_del = mlxsw_sp_acl_tcam_mr_ruleset_del, | |
1891 | .ruleset_bind = mlxsw_sp_acl_tcam_mr_ruleset_bind, | |
1892 | .ruleset_unbind = mlxsw_sp_acl_tcam_mr_ruleset_unbind, | |
1893 | .ruleset_group_id = mlxsw_sp_acl_tcam_mr_ruleset_group_id, | |
c4c2dc54 | 1894 | .rule_priv_size = sizeof(struct mlxsw_sp_acl_tcam_mr_rule), |
1a29d293 ND |
1895 | .rule_add = mlxsw_sp_acl_tcam_mr_rule_add, |
1896 | .rule_del = mlxsw_sp_acl_tcam_mr_rule_del, | |
2507a64c | 1897 | .rule_action_replace = mlxsw_sp_acl_tcam_mr_rule_action_replace, |
1a29d293 ND |
1898 | .rule_activity_get = mlxsw_sp_acl_tcam_mr_rule_activity_get, |
1899 | }; | |
1900 | ||
22a67766 JP |
1901 | static const struct mlxsw_sp_acl_profile_ops * |
1902 | mlxsw_sp_acl_tcam_profile_ops_arr[] = { | |
1903 | [MLXSW_SP_ACL_PROFILE_FLOWER] = &mlxsw_sp_acl_tcam_flower_ops, | |
1a29d293 | 1904 | [MLXSW_SP_ACL_PROFILE_MR] = &mlxsw_sp_acl_tcam_mr_ops, |
22a67766 JP |
1905 | }; |
1906 | ||
bab5c1cf | 1907 | const struct mlxsw_sp_acl_profile_ops * |
22a67766 JP |
1908 | mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp, |
1909 | enum mlxsw_sp_acl_profile profile) | |
1910 | { | |
1911 | const struct mlxsw_sp_acl_profile_ops *ops; | |
1912 | ||
1913 | if (WARN_ON(profile >= ARRAY_SIZE(mlxsw_sp_acl_tcam_profile_ops_arr))) | |
1914 | return NULL; | |
1915 | ops = mlxsw_sp_acl_tcam_profile_ops_arr[profile]; | |
1916 | if (WARN_ON(!ops)) | |
1917 | return NULL; | |
1918 | return ops; | |
1919 | } |