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