Commit | Line | Data |
---|---|---|
e8f887ac AV |
1 | /* |
2 | * Copyright (c) 2016, Mellanox Technologies. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
32 | ||
e3a2b7ed | 33 | #include <net/flow_dissector.h> |
3f7d0eb4 | 34 | #include <net/sch_generic.h> |
e3a2b7ed AV |
35 | #include <net/pkt_cls.h> |
36 | #include <net/tc_act/tc_gact.h> | |
12185a9f | 37 | #include <net/tc_act/tc_skbedit.h> |
e8f887ac AV |
38 | #include <linux/mlx5/fs.h> |
39 | #include <linux/mlx5/device.h> | |
40 | #include <linux/rhashtable.h> | |
03a9d11e OG |
41 | #include <net/switchdev.h> |
42 | #include <net/tc_act/tc_mirred.h> | |
776b12b6 | 43 | #include <net/tc_act/tc_vlan.h> |
bbd00f7e | 44 | #include <net/tc_act/tc_tunnel_key.h> |
d79b6df6 | 45 | #include <net/tc_act/tc_pedit.h> |
26c02749 | 46 | #include <net/tc_act/tc_csum.h> |
a54e20b4 | 47 | #include <net/vxlan.h> |
f6dfb4c3 | 48 | #include <net/arp.h> |
e8f887ac | 49 | #include "en.h" |
1d447a39 | 50 | #include "en_rep.h" |
232c0013 | 51 | #include "en_tc.h" |
03a9d11e | 52 | #include "eswitch.h" |
bbd00f7e | 53 | #include "vxlan.h" |
e8f887ac | 54 | |
3bc4b7bf OG |
55 | struct mlx5_nic_flow_attr { |
56 | u32 action; | |
57 | u32 flow_tag; | |
2f4fe4ca | 58 | u32 mod_hdr_id; |
3bc4b7bf OG |
59 | }; |
60 | ||
65ba8fb7 OG |
61 | enum { |
62 | MLX5E_TC_FLOW_ESWITCH = BIT(0), | |
3bc4b7bf | 63 | MLX5E_TC_FLOW_NIC = BIT(1), |
0b67a38f | 64 | MLX5E_TC_FLOW_OFFLOADED = BIT(2), |
65ba8fb7 OG |
65 | }; |
66 | ||
e8f887ac AV |
67 | struct mlx5e_tc_flow { |
68 | struct rhash_head node; | |
69 | u64 cookie; | |
65ba8fb7 | 70 | u8 flags; |
74491de9 | 71 | struct mlx5_flow_handle *rule; |
11c9c548 OG |
72 | struct list_head encap; /* flows sharing the same encap ID */ |
73 | struct list_head mod_hdr; /* flows sharing the same mod hdr ID */ | |
3bc4b7bf OG |
74 | union { |
75 | struct mlx5_esw_flow_attr esw_attr[0]; | |
76 | struct mlx5_nic_flow_attr nic_attr[0]; | |
77 | }; | |
e8f887ac AV |
78 | }; |
79 | ||
17091853 OG |
80 | struct mlx5e_tc_flow_parse_attr { |
81 | struct mlx5_flow_spec spec; | |
d79b6df6 OG |
82 | int num_mod_hdr_actions; |
83 | void *mod_hdr_actions; | |
17091853 OG |
84 | }; |
85 | ||
a54e20b4 HHZ |
86 | enum { |
87 | MLX5_HEADER_TYPE_VXLAN = 0x0, | |
88 | MLX5_HEADER_TYPE_NVGRE = 0x1, | |
89 | }; | |
90 | ||
acff797c MG |
91 | #define MLX5E_TC_TABLE_NUM_ENTRIES 1024 |
92 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 | |
e8f887ac | 93 | |
11c9c548 OG |
94 | struct mod_hdr_key { |
95 | int num_actions; | |
96 | void *actions; | |
97 | }; | |
98 | ||
99 | struct mlx5e_mod_hdr_entry { | |
100 | /* a node of a hash table which keeps all the mod_hdr entries */ | |
101 | struct hlist_node mod_hdr_hlist; | |
102 | ||
103 | /* flows sharing the same mod_hdr entry */ | |
104 | struct list_head flows; | |
105 | ||
106 | struct mod_hdr_key key; | |
107 | ||
108 | u32 mod_hdr_id; | |
109 | }; | |
110 | ||
111 | #define MLX5_MH_ACT_SZ MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) | |
112 | ||
113 | static inline u32 hash_mod_hdr_info(struct mod_hdr_key *key) | |
114 | { | |
115 | return jhash(key->actions, | |
116 | key->num_actions * MLX5_MH_ACT_SZ, 0); | |
117 | } | |
118 | ||
119 | static inline int cmp_mod_hdr_info(struct mod_hdr_key *a, | |
120 | struct mod_hdr_key *b) | |
121 | { | |
122 | if (a->num_actions != b->num_actions) | |
123 | return 1; | |
124 | ||
125 | return memcmp(a->actions, b->actions, a->num_actions * MLX5_MH_ACT_SZ); | |
126 | } | |
127 | ||
128 | static int mlx5e_attach_mod_hdr(struct mlx5e_priv *priv, | |
129 | struct mlx5e_tc_flow *flow, | |
130 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
131 | { | |
132 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
133 | int num_actions, actions_size, namespace, err; | |
134 | struct mlx5e_mod_hdr_entry *mh; | |
135 | struct mod_hdr_key key; | |
136 | bool found = false; | |
137 | u32 hash_key; | |
138 | ||
139 | num_actions = parse_attr->num_mod_hdr_actions; | |
140 | actions_size = MLX5_MH_ACT_SZ * num_actions; | |
141 | ||
142 | key.actions = parse_attr->mod_hdr_actions; | |
143 | key.num_actions = num_actions; | |
144 | ||
145 | hash_key = hash_mod_hdr_info(&key); | |
146 | ||
147 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { | |
148 | namespace = MLX5_FLOW_NAMESPACE_FDB; | |
149 | hash_for_each_possible(esw->offloads.mod_hdr_tbl, mh, | |
150 | mod_hdr_hlist, hash_key) { | |
151 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
152 | found = true; | |
153 | break; | |
154 | } | |
155 | } | |
156 | } else { | |
157 | namespace = MLX5_FLOW_NAMESPACE_KERNEL; | |
158 | hash_for_each_possible(priv->fs.tc.mod_hdr_tbl, mh, | |
159 | mod_hdr_hlist, hash_key) { | |
160 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
161 | found = true; | |
162 | break; | |
163 | } | |
164 | } | |
165 | } | |
166 | ||
167 | if (found) | |
168 | goto attach_flow; | |
169 | ||
170 | mh = kzalloc(sizeof(*mh) + actions_size, GFP_KERNEL); | |
171 | if (!mh) | |
172 | return -ENOMEM; | |
173 | ||
174 | mh->key.actions = (void *)mh + sizeof(*mh); | |
175 | memcpy(mh->key.actions, key.actions, actions_size); | |
176 | mh->key.num_actions = num_actions; | |
177 | INIT_LIST_HEAD(&mh->flows); | |
178 | ||
179 | err = mlx5_modify_header_alloc(priv->mdev, namespace, | |
180 | mh->key.num_actions, | |
181 | mh->key.actions, | |
182 | &mh->mod_hdr_id); | |
183 | if (err) | |
184 | goto out_err; | |
185 | ||
186 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
187 | hash_add(esw->offloads.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
188 | else | |
189 | hash_add(priv->fs.tc.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
190 | ||
191 | attach_flow: | |
192 | list_add(&flow->mod_hdr, &mh->flows); | |
193 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
194 | flow->esw_attr->mod_hdr_id = mh->mod_hdr_id; | |
195 | else | |
196 | flow->nic_attr->mod_hdr_id = mh->mod_hdr_id; | |
197 | ||
198 | return 0; | |
199 | ||
200 | out_err: | |
201 | kfree(mh); | |
202 | return err; | |
203 | } | |
204 | ||
205 | static void mlx5e_detach_mod_hdr(struct mlx5e_priv *priv, | |
206 | struct mlx5e_tc_flow *flow) | |
207 | { | |
208 | struct list_head *next = flow->mod_hdr.next; | |
209 | ||
210 | list_del(&flow->mod_hdr); | |
211 | ||
212 | if (list_empty(next)) { | |
213 | struct mlx5e_mod_hdr_entry *mh; | |
214 | ||
215 | mh = list_entry(next, struct mlx5e_mod_hdr_entry, flows); | |
216 | ||
217 | mlx5_modify_header_dealloc(priv->mdev, mh->mod_hdr_id); | |
218 | hash_del(&mh->mod_hdr_hlist); | |
219 | kfree(mh); | |
220 | } | |
221 | } | |
222 | ||
74491de9 MB |
223 | static struct mlx5_flow_handle * |
224 | mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, | |
17091853 | 225 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
aa0cbbae | 226 | struct mlx5e_tc_flow *flow) |
e8f887ac | 227 | { |
aa0cbbae | 228 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
aad7e08d | 229 | struct mlx5_core_dev *dev = priv->mdev; |
aa0cbbae | 230 | struct mlx5_flow_destination dest = {}; |
66958ed9 | 231 | struct mlx5_flow_act flow_act = { |
3bc4b7bf OG |
232 | .action = attr->action, |
233 | .flow_tag = attr->flow_tag, | |
66958ed9 HHZ |
234 | .encap_id = 0, |
235 | }; | |
aad7e08d | 236 | struct mlx5_fc *counter = NULL; |
74491de9 | 237 | struct mlx5_flow_handle *rule; |
e8f887ac | 238 | bool table_created = false; |
2f4fe4ca | 239 | int err; |
e8f887ac | 240 | |
3bc4b7bf | 241 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
aad7e08d AV |
242 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; |
243 | dest.ft = priv->fs.vlan.ft.t; | |
3bc4b7bf | 244 | } else if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
aad7e08d AV |
245 | counter = mlx5_fc_create(dev, true); |
246 | if (IS_ERR(counter)) | |
247 | return ERR_CAST(counter); | |
248 | ||
249 | dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
250 | dest.counter = counter; | |
251 | } | |
252 | ||
2f4fe4ca OG |
253 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
254 | err = mlx5_modify_header_alloc(dev, MLX5_FLOW_NAMESPACE_KERNEL, | |
255 | parse_attr->num_mod_hdr_actions, | |
256 | parse_attr->mod_hdr_actions, | |
257 | &attr->mod_hdr_id); | |
d7e75a32 | 258 | flow_act.modify_id = attr->mod_hdr_id; |
2f4fe4ca OG |
259 | kfree(parse_attr->mod_hdr_actions); |
260 | if (err) { | |
261 | rule = ERR_PTR(err); | |
262 | goto err_create_mod_hdr_id; | |
263 | } | |
264 | } | |
265 | ||
acff797c MG |
266 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
267 | priv->fs.tc.t = | |
268 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
269 | MLX5E_TC_PRIO, | |
270 | MLX5E_TC_TABLE_NUM_ENTRIES, | |
271 | MLX5E_TC_TABLE_NUM_GROUPS, | |
c9f1b073 | 272 | 0, 0); |
acff797c | 273 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
274 | netdev_err(priv->netdev, |
275 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
276 | rule = ERR_CAST(priv->fs.tc.t); |
277 | goto err_create_ft; | |
e8f887ac AV |
278 | } |
279 | ||
280 | table_created = true; | |
281 | } | |
282 | ||
17091853 OG |
283 | parse_attr->spec.match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
284 | rule = mlx5_add_flow_rules(priv->fs.tc.t, &parse_attr->spec, | |
285 | &flow_act, &dest, 1); | |
aad7e08d AV |
286 | |
287 | if (IS_ERR(rule)) | |
288 | goto err_add_rule; | |
289 | ||
290 | return rule; | |
e8f887ac | 291 | |
aad7e08d AV |
292 | err_add_rule: |
293 | if (table_created) { | |
acff797c MG |
294 | mlx5_destroy_flow_table(priv->fs.tc.t); |
295 | priv->fs.tc.t = NULL; | |
e8f887ac | 296 | } |
aad7e08d | 297 | err_create_ft: |
2f4fe4ca OG |
298 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
299 | mlx5_modify_header_dealloc(priv->mdev, | |
300 | attr->mod_hdr_id); | |
301 | err_create_mod_hdr_id: | |
aad7e08d | 302 | mlx5_fc_destroy(dev, counter); |
e8f887ac AV |
303 | |
304 | return rule; | |
305 | } | |
306 | ||
d85cdccb OG |
307 | static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, |
308 | struct mlx5e_tc_flow *flow) | |
309 | { | |
513f8f7f | 310 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
d85cdccb OG |
311 | struct mlx5_fc *counter = NULL; |
312 | ||
aa0cbbae OG |
313 | counter = mlx5_flow_rule_counter(flow->rule); |
314 | mlx5_del_flow_rules(flow->rule); | |
315 | mlx5_fc_destroy(priv->mdev, counter); | |
d85cdccb OG |
316 | |
317 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { | |
318 | mlx5_destroy_flow_table(priv->fs.tc.t); | |
319 | priv->fs.tc.t = NULL; | |
320 | } | |
2f4fe4ca | 321 | |
513f8f7f | 322 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
2f4fe4ca | 323 | mlx5_modify_header_dealloc(priv->mdev, |
513f8f7f | 324 | attr->mod_hdr_id); |
d85cdccb OG |
325 | } |
326 | ||
aa0cbbae OG |
327 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
328 | struct mlx5e_tc_flow *flow); | |
329 | ||
74491de9 MB |
330 | static struct mlx5_flow_handle * |
331 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, | |
17091853 | 332 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
aa0cbbae | 333 | struct mlx5e_tc_flow *flow) |
adb4c123 OG |
334 | { |
335 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
aa0cbbae OG |
336 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
337 | struct mlx5_flow_handle *rule; | |
8b32580d OG |
338 | int err; |
339 | ||
340 | err = mlx5_eswitch_add_vlan_action(esw, attr); | |
aa0cbbae OG |
341 | if (err) { |
342 | rule = ERR_PTR(err); | |
343 | goto err_add_vlan; | |
344 | } | |
adb4c123 | 345 | |
d7e75a32 OG |
346 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
347 | err = mlx5_modify_header_alloc(priv->mdev, MLX5_FLOW_NAMESPACE_FDB, | |
348 | parse_attr->num_mod_hdr_actions, | |
349 | parse_attr->mod_hdr_actions, | |
350 | &attr->mod_hdr_id); | |
351 | kfree(parse_attr->mod_hdr_actions); | |
352 | if (err) { | |
353 | rule = ERR_PTR(err); | |
354 | goto err_mod_hdr; | |
355 | } | |
356 | } | |
357 | ||
aa0cbbae OG |
358 | rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr); |
359 | if (IS_ERR(rule)) | |
360 | goto err_add_rule; | |
adb4c123 | 361 | |
aa0cbbae OG |
362 | return rule; |
363 | ||
364 | err_add_rule: | |
513f8f7f | 365 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
d7e75a32 OG |
366 | mlx5_modify_header_dealloc(priv->mdev, |
367 | attr->mod_hdr_id); | |
368 | err_mod_hdr: | |
aa0cbbae OG |
369 | mlx5_eswitch_del_vlan_action(esw, attr); |
370 | err_add_vlan: | |
371 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) | |
372 | mlx5e_detach_encap(priv, flow); | |
aa0cbbae OG |
373 | return rule; |
374 | } | |
d85cdccb OG |
375 | |
376 | static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, | |
377 | struct mlx5e_tc_flow *flow) | |
378 | { | |
379 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
d7e75a32 | 380 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
d85cdccb | 381 | |
232c0013 HHZ |
382 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { |
383 | flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; | |
513f8f7f | 384 | mlx5_eswitch_del_offloaded_rule(esw, flow->rule, attr); |
232c0013 | 385 | } |
d85cdccb | 386 | |
513f8f7f | 387 | mlx5_eswitch_del_vlan_action(esw, attr); |
d85cdccb | 388 | |
513f8f7f | 389 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) { |
d85cdccb | 390 | mlx5e_detach_encap(priv, flow); |
513f8f7f | 391 | kvfree(attr->parse_attr); |
232c0013 | 392 | } |
d7e75a32 | 393 | |
513f8f7f | 394 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
d7e75a32 OG |
395 | mlx5_modify_header_dealloc(priv->mdev, |
396 | attr->mod_hdr_id); | |
d85cdccb OG |
397 | } |
398 | ||
232c0013 HHZ |
399 | void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, |
400 | struct mlx5e_encap_entry *e) | |
401 | { | |
402 | struct mlx5e_tc_flow *flow; | |
403 | int err; | |
404 | ||
405 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
406 | e->encap_size, e->encap_header, | |
407 | &e->encap_id); | |
408 | if (err) { | |
409 | mlx5_core_warn(priv->mdev, "Failed to offload cached encapsulation header, %d\n", | |
410 | err); | |
411 | return; | |
412 | } | |
413 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 414 | mlx5e_rep_queue_neigh_stats_work(priv); |
232c0013 HHZ |
415 | |
416 | list_for_each_entry(flow, &e->flows, encap) { | |
417 | flow->esw_attr->encap_id = e->encap_id; | |
418 | flow->rule = mlx5e_tc_add_fdb_flow(priv, | |
419 | flow->esw_attr->parse_attr, | |
420 | flow); | |
421 | if (IS_ERR(flow->rule)) { | |
422 | err = PTR_ERR(flow->rule); | |
423 | mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n", | |
424 | err); | |
425 | continue; | |
426 | } | |
427 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; | |
428 | } | |
429 | } | |
430 | ||
431 | void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv, | |
432 | struct mlx5e_encap_entry *e) | |
433 | { | |
434 | struct mlx5e_tc_flow *flow; | |
435 | struct mlx5_fc *counter; | |
436 | ||
437 | list_for_each_entry(flow, &e->flows, encap) { | |
438 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { | |
439 | flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; | |
440 | counter = mlx5_flow_rule_counter(flow->rule); | |
441 | mlx5_del_flow_rules(flow->rule); | |
442 | mlx5_fc_destroy(priv->mdev, counter); | |
443 | } | |
444 | } | |
445 | ||
446 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) { | |
447 | e->flags &= ~MLX5_ENCAP_ENTRY_VALID; | |
448 | mlx5_encap_dealloc(priv->mdev, e->encap_id); | |
449 | } | |
450 | } | |
451 | ||
f6dfb4c3 HHZ |
452 | void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) |
453 | { | |
454 | struct mlx5e_neigh *m_neigh = &nhe->m_neigh; | |
455 | u64 bytes, packets, lastuse = 0; | |
456 | struct mlx5e_tc_flow *flow; | |
457 | struct mlx5e_encap_entry *e; | |
458 | struct mlx5_fc *counter; | |
459 | struct neigh_table *tbl; | |
460 | bool neigh_used = false; | |
461 | struct neighbour *n; | |
462 | ||
463 | if (m_neigh->family == AF_INET) | |
464 | tbl = &arp_tbl; | |
465 | #if IS_ENABLED(CONFIG_IPV6) | |
466 | else if (m_neigh->family == AF_INET6) | |
467 | tbl = ipv6_stub->nd_tbl; | |
468 | #endif | |
469 | else | |
470 | return; | |
471 | ||
472 | list_for_each_entry(e, &nhe->encap_list, encap_list) { | |
473 | if (!(e->flags & MLX5_ENCAP_ENTRY_VALID)) | |
474 | continue; | |
475 | list_for_each_entry(flow, &e->flows, encap) { | |
476 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { | |
477 | counter = mlx5_flow_rule_counter(flow->rule); | |
478 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
479 | if (time_after((unsigned long)lastuse, nhe->reported_lastuse)) { | |
480 | neigh_used = true; | |
481 | break; | |
482 | } | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | if (neigh_used) { | |
488 | nhe->reported_lastuse = jiffies; | |
489 | ||
490 | /* find the relevant neigh according to the cached device and | |
491 | * dst ip pair | |
492 | */ | |
493 | n = neigh_lookup(tbl, &m_neigh->dst_ip, m_neigh->dev); | |
494 | if (!n) { | |
495 | WARN(1, "The neighbour already freed\n"); | |
496 | return; | |
497 | } | |
498 | ||
499 | neigh_event_send(n, NULL); | |
500 | neigh_release(n); | |
501 | } | |
502 | } | |
503 | ||
d85cdccb OG |
504 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
505 | struct mlx5e_tc_flow *flow) | |
506 | { | |
5067b602 RD |
507 | struct list_head *next = flow->encap.next; |
508 | ||
509 | list_del(&flow->encap); | |
510 | if (list_empty(next)) { | |
c1ae1152 | 511 | struct mlx5e_encap_entry *e; |
5067b602 | 512 | |
c1ae1152 | 513 | e = list_entry(next, struct mlx5e_encap_entry, flows); |
232c0013 HHZ |
514 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); |
515 | ||
516 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) | |
5067b602 | 517 | mlx5_encap_dealloc(priv->mdev, e->encap_id); |
232c0013 | 518 | |
cdc5a7f3 | 519 | hash_del_rcu(&e->encap_hlist); |
232c0013 | 520 | kfree(e->encap_header); |
5067b602 RD |
521 | kfree(e); |
522 | } | |
523 | } | |
524 | ||
e8f887ac | 525 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 526 | struct mlx5e_tc_flow *flow) |
e8f887ac | 527 | { |
d85cdccb OG |
528 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) |
529 | mlx5e_tc_del_fdb_flow(priv, flow); | |
530 | else | |
531 | mlx5e_tc_del_nic_flow(priv, flow); | |
e8f887ac AV |
532 | } |
533 | ||
bbd00f7e HHZ |
534 | static void parse_vxlan_attr(struct mlx5_flow_spec *spec, |
535 | struct tc_cls_flower_offload *f) | |
536 | { | |
537 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
538 | outer_headers); | |
539 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
540 | outer_headers); | |
541 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
542 | misc_parameters); | |
543 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
544 | misc_parameters); | |
545 | ||
546 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol); | |
547 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP); | |
548 | ||
549 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) { | |
550 | struct flow_dissector_key_keyid *key = | |
551 | skb_flow_dissector_target(f->dissector, | |
552 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
553 | f->key); | |
554 | struct flow_dissector_key_keyid *mask = | |
555 | skb_flow_dissector_target(f->dissector, | |
556 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
557 | f->mask); | |
558 | MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni, | |
559 | be32_to_cpu(mask->keyid)); | |
560 | MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni, | |
561 | be32_to_cpu(key->keyid)); | |
562 | } | |
563 | } | |
564 | ||
565 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
566 | struct mlx5_flow_spec *spec, | |
567 | struct tc_cls_flower_offload *f) | |
568 | { | |
569 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
570 | outer_headers); | |
571 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
572 | outer_headers); | |
573 | ||
2e72eb43 OG |
574 | struct flow_dissector_key_control *enc_control = |
575 | skb_flow_dissector_target(f->dissector, | |
576 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
577 | f->key); | |
578 | ||
bbd00f7e HHZ |
579 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) { |
580 | struct flow_dissector_key_ports *key = | |
581 | skb_flow_dissector_target(f->dissector, | |
582 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
583 | f->key); | |
584 | struct flow_dissector_key_ports *mask = | |
585 | skb_flow_dissector_target(f->dissector, | |
586 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
587 | f->mask); | |
1ad9a00a PB |
588 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
589 | struct net_device *up_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
590 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); | |
bbd00f7e HHZ |
591 | |
592 | /* Full udp dst port must be given */ | |
593 | if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst))) | |
2fcd82e9 | 594 | goto vxlan_match_offload_err; |
bbd00f7e | 595 | |
1ad9a00a | 596 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->dst)) && |
bbd00f7e HHZ |
597 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) |
598 | parse_vxlan_attr(spec, f); | |
2fcd82e9 OG |
599 | else { |
600 | netdev_warn(priv->netdev, | |
601 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst)); | |
bbd00f7e | 602 | return -EOPNOTSUPP; |
2fcd82e9 | 603 | } |
bbd00f7e HHZ |
604 | |
605 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
606 | udp_dport, ntohs(mask->dst)); | |
607 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
608 | udp_dport, ntohs(key->dst)); | |
609 | ||
cd377663 OG |
610 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
611 | udp_sport, ntohs(mask->src)); | |
612 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
613 | udp_sport, ntohs(key->src)); | |
bbd00f7e | 614 | } else { /* udp dst port must be given */ |
2fcd82e9 OG |
615 | vxlan_match_offload_err: |
616 | netdev_warn(priv->netdev, | |
617 | "IP tunnel decap offload supported only for vxlan, must set UDP dport\n"); | |
618 | return -EOPNOTSUPP; | |
bbd00f7e HHZ |
619 | } |
620 | ||
2e72eb43 | 621 | if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
bbd00f7e HHZ |
622 | struct flow_dissector_key_ipv4_addrs *key = |
623 | skb_flow_dissector_target(f->dissector, | |
624 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
625 | f->key); | |
626 | struct flow_dissector_key_ipv4_addrs *mask = | |
627 | skb_flow_dissector_target(f->dissector, | |
628 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
629 | f->mask); | |
630 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
631 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
632 | ntohl(mask->src)); | |
633 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
634 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
635 | ntohl(key->src)); | |
636 | ||
637 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
638 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
639 | ntohl(mask->dst)); | |
640 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
641 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
642 | ntohl(key->dst)); | |
bbd00f7e | 643 | |
2e72eb43 OG |
644 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); |
645 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
19f44401 OG |
646 | } else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { |
647 | struct flow_dissector_key_ipv6_addrs *key = | |
648 | skb_flow_dissector_target(f->dissector, | |
649 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
650 | f->key); | |
651 | struct flow_dissector_key_ipv6_addrs *mask = | |
652 | skb_flow_dissector_target(f->dissector, | |
653 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
654 | f->mask); | |
655 | ||
656 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
657 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
658 | &mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
659 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
660 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
661 | &key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
662 | ||
663 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
664 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
665 | &mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
666 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
667 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
668 | &key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
669 | ||
670 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
671 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); | |
2e72eb43 | 672 | } |
bbd00f7e HHZ |
673 | |
674 | /* Enforce DMAC when offloading incoming tunneled flows. | |
675 | * Flow counters require a match on the DMAC. | |
676 | */ | |
677 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
678 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
679 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
680 | dmac_47_16), priv->netdev->dev_addr); | |
681 | ||
682 | /* let software handle IP fragments */ | |
683 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
684 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
de0af0bf RD |
689 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
690 | struct mlx5_flow_spec *spec, | |
691 | struct tc_cls_flower_offload *f, | |
692 | u8 *min_inline) | |
e3a2b7ed | 693 | { |
c5bb1730 MG |
694 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
695 | outer_headers); | |
696 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
697 | outer_headers); | |
e3a2b7ed AV |
698 | u16 addr_type = 0; |
699 | u8 ip_proto = 0; | |
700 | ||
de0af0bf RD |
701 | *min_inline = MLX5_INLINE_MODE_L2; |
702 | ||
e3a2b7ed AV |
703 | if (f->dissector->used_keys & |
704 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
705 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
706 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 707 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
e3a2b7ed AV |
708 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
709 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
710 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
711 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
712 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
713 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
714 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
e77834ec | 715 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | |
fd7da28b OG |
716 | BIT(FLOW_DISSECTOR_KEY_TCP) | |
717 | BIT(FLOW_DISSECTOR_KEY_IP))) { | |
e3a2b7ed AV |
718 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
719 | f->dissector->used_keys); | |
720 | return -EOPNOTSUPP; | |
721 | } | |
722 | ||
bbd00f7e HHZ |
723 | if ((dissector_uses_key(f->dissector, |
724 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || | |
725 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || | |
726 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && | |
727 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { | |
728 | struct flow_dissector_key_control *key = | |
729 | skb_flow_dissector_target(f->dissector, | |
730 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
731 | f->key); | |
732 | switch (key->addr_type) { | |
733 | case FLOW_DISSECTOR_KEY_IPV4_ADDRS: | |
19f44401 | 734 | case FLOW_DISSECTOR_KEY_IPV6_ADDRS: |
bbd00f7e HHZ |
735 | if (parse_tunnel_attr(priv, spec, f)) |
736 | return -EOPNOTSUPP; | |
737 | break; | |
738 | default: | |
739 | return -EOPNOTSUPP; | |
740 | } | |
741 | ||
742 | /* In decap flow, header pointers should point to the inner | |
743 | * headers, outer header were already set by parse_tunnel_attr | |
744 | */ | |
745 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
746 | inner_headers); | |
747 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
748 | inner_headers); | |
749 | } | |
750 | ||
e3a2b7ed AV |
751 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { |
752 | struct flow_dissector_key_control *key = | |
753 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 754 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed | 755 | f->key); |
3f7d0eb4 OG |
756 | |
757 | struct flow_dissector_key_control *mask = | |
758 | skb_flow_dissector_target(f->dissector, | |
759 | FLOW_DISSECTOR_KEY_CONTROL, | |
760 | f->mask); | |
e3a2b7ed | 761 | addr_type = key->addr_type; |
3f7d0eb4 OG |
762 | |
763 | if (mask->flags & FLOW_DIS_IS_FRAGMENT) { | |
764 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
765 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
766 | key->flags & FLOW_DIS_IS_FRAGMENT); | |
0827444d OG |
767 | |
768 | /* the HW doesn't need L3 inline to match on frag=no */ | |
769 | if (key->flags & FLOW_DIS_IS_FRAGMENT) | |
770 | *min_inline = MLX5_INLINE_MODE_IP; | |
3f7d0eb4 | 771 | } |
e3a2b7ed AV |
772 | } |
773 | ||
774 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
775 | struct flow_dissector_key_basic *key = | |
776 | skb_flow_dissector_target(f->dissector, | |
777 | FLOW_DISSECTOR_KEY_BASIC, | |
778 | f->key); | |
779 | struct flow_dissector_key_basic *mask = | |
780 | skb_flow_dissector_target(f->dissector, | |
781 | FLOW_DISSECTOR_KEY_BASIC, | |
782 | f->mask); | |
783 | ip_proto = key->ip_proto; | |
784 | ||
785 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
786 | ntohs(mask->n_proto)); | |
787 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
788 | ntohs(key->n_proto)); | |
789 | ||
790 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
791 | mask->ip_proto); | |
792 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
793 | key->ip_proto); | |
de0af0bf RD |
794 | |
795 | if (mask->ip_proto) | |
796 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
797 | } |
798 | ||
799 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
800 | struct flow_dissector_key_eth_addrs *key = | |
801 | skb_flow_dissector_target(f->dissector, | |
802 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
803 | f->key); | |
804 | struct flow_dissector_key_eth_addrs *mask = | |
805 | skb_flow_dissector_target(f->dissector, | |
806 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
807 | f->mask); | |
808 | ||
809 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
810 | dmac_47_16), | |
811 | mask->dst); | |
812 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
813 | dmac_47_16), | |
814 | key->dst); | |
815 | ||
816 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
817 | smac_47_16), | |
818 | mask->src); | |
819 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
820 | smac_47_16), | |
821 | key->src); | |
822 | } | |
823 | ||
095b6cfd OG |
824 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { |
825 | struct flow_dissector_key_vlan *key = | |
826 | skb_flow_dissector_target(f->dissector, | |
827 | FLOW_DISSECTOR_KEY_VLAN, | |
828 | f->key); | |
829 | struct flow_dissector_key_vlan *mask = | |
830 | skb_flow_dissector_target(f->dissector, | |
831 | FLOW_DISSECTOR_KEY_VLAN, | |
832 | f->mask); | |
358d79a4 | 833 | if (mask->vlan_id || mask->vlan_priority) { |
10543365 MHY |
834 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); |
835 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); | |
095b6cfd OG |
836 | |
837 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); | |
838 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); | |
358d79a4 OG |
839 | |
840 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); | |
841 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); | |
095b6cfd OG |
842 | } |
843 | } | |
844 | ||
e3a2b7ed AV |
845 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
846 | struct flow_dissector_key_ipv4_addrs *key = | |
847 | skb_flow_dissector_target(f->dissector, | |
848 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
849 | f->key); | |
850 | struct flow_dissector_key_ipv4_addrs *mask = | |
851 | skb_flow_dissector_target(f->dissector, | |
852 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
853 | f->mask); | |
854 | ||
855 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
856 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
857 | &mask->src, sizeof(mask->src)); | |
858 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
859 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
860 | &key->src, sizeof(key->src)); | |
861 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
862 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
863 | &mask->dst, sizeof(mask->dst)); | |
864 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
865 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
866 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
867 | |
868 | if (mask->src || mask->dst) | |
869 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
870 | } |
871 | ||
872 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
873 | struct flow_dissector_key_ipv6_addrs *key = | |
874 | skb_flow_dissector_target(f->dissector, | |
875 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
876 | f->key); | |
877 | struct flow_dissector_key_ipv6_addrs *mask = | |
878 | skb_flow_dissector_target(f->dissector, | |
879 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
880 | f->mask); | |
881 | ||
882 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
883 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
884 | &mask->src, sizeof(mask->src)); | |
885 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
886 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
887 | &key->src, sizeof(key->src)); | |
888 | ||
889 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
890 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
891 | &mask->dst, sizeof(mask->dst)); | |
892 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
893 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
894 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
895 | |
896 | if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || | |
897 | ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) | |
898 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
899 | } |
900 | ||
901 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
902 | struct flow_dissector_key_ports *key = | |
903 | skb_flow_dissector_target(f->dissector, | |
904 | FLOW_DISSECTOR_KEY_PORTS, | |
905 | f->key); | |
906 | struct flow_dissector_key_ports *mask = | |
907 | skb_flow_dissector_target(f->dissector, | |
908 | FLOW_DISSECTOR_KEY_PORTS, | |
909 | f->mask); | |
910 | switch (ip_proto) { | |
911 | case IPPROTO_TCP: | |
912 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
913 | tcp_sport, ntohs(mask->src)); | |
914 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
915 | tcp_sport, ntohs(key->src)); | |
916 | ||
917 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
918 | tcp_dport, ntohs(mask->dst)); | |
919 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
920 | tcp_dport, ntohs(key->dst)); | |
921 | break; | |
922 | ||
923 | case IPPROTO_UDP: | |
924 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
925 | udp_sport, ntohs(mask->src)); | |
926 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
927 | udp_sport, ntohs(key->src)); | |
928 | ||
929 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
930 | udp_dport, ntohs(mask->dst)); | |
931 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
932 | udp_dport, ntohs(key->dst)); | |
933 | break; | |
934 | default: | |
935 | netdev_err(priv->netdev, | |
936 | "Only UDP and TCP transport are supported\n"); | |
937 | return -EINVAL; | |
938 | } | |
de0af0bf RD |
939 | |
940 | if (mask->src || mask->dst) | |
941 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
e3a2b7ed AV |
942 | } |
943 | ||
fd7da28b OG |
944 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IP)) { |
945 | struct flow_dissector_key_ip *key = | |
946 | skb_flow_dissector_target(f->dissector, | |
947 | FLOW_DISSECTOR_KEY_IP, | |
948 | f->key); | |
949 | struct flow_dissector_key_ip *mask = | |
950 | skb_flow_dissector_target(f->dissector, | |
951 | FLOW_DISSECTOR_KEY_IP, | |
952 | f->mask); | |
953 | ||
954 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3); | |
955 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3); | |
956 | ||
957 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2); | |
958 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2); | |
959 | ||
960 | if (mask->tos) | |
961 | *min_inline = MLX5_INLINE_MODE_IP; | |
962 | ||
963 | if (mask->ttl) /* currently not supported */ | |
964 | return -EOPNOTSUPP; | |
965 | } | |
966 | ||
e77834ec OG |
967 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) { |
968 | struct flow_dissector_key_tcp *key = | |
969 | skb_flow_dissector_target(f->dissector, | |
970 | FLOW_DISSECTOR_KEY_TCP, | |
971 | f->key); | |
972 | struct flow_dissector_key_tcp *mask = | |
973 | skb_flow_dissector_target(f->dissector, | |
974 | FLOW_DISSECTOR_KEY_TCP, | |
975 | f->mask); | |
976 | ||
977 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_flags, | |
978 | ntohs(mask->flags)); | |
979 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags, | |
980 | ntohs(key->flags)); | |
981 | ||
982 | if (mask->flags) | |
983 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
984 | } | |
985 | ||
e3a2b7ed AV |
986 | return 0; |
987 | } | |
988 | ||
de0af0bf | 989 | static int parse_cls_flower(struct mlx5e_priv *priv, |
65ba8fb7 | 990 | struct mlx5e_tc_flow *flow, |
de0af0bf RD |
991 | struct mlx5_flow_spec *spec, |
992 | struct tc_cls_flower_offload *f) | |
993 | { | |
994 | struct mlx5_core_dev *dev = priv->mdev; | |
995 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
1d447a39 SM |
996 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
997 | struct mlx5_eswitch_rep *rep; | |
de0af0bf RD |
998 | u8 min_inline; |
999 | int err; | |
1000 | ||
1001 | err = __parse_cls_flower(priv, spec, f, &min_inline); | |
1002 | ||
1d447a39 SM |
1003 | if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH)) { |
1004 | rep = rpriv->rep; | |
1005 | if (rep->vport != FDB_UPLINK_VPORT && | |
1006 | (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE && | |
1007 | esw->offloads.inline_mode < min_inline)) { | |
de0af0bf RD |
1008 | netdev_warn(priv->netdev, |
1009 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
1010 | min_inline, esw->offloads.inline_mode); | |
1011 | return -EOPNOTSUPP; | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | return err; | |
1016 | } | |
1017 | ||
d79b6df6 OG |
1018 | struct pedit_headers { |
1019 | struct ethhdr eth; | |
1020 | struct iphdr ip4; | |
1021 | struct ipv6hdr ip6; | |
1022 | struct tcphdr tcp; | |
1023 | struct udphdr udp; | |
1024 | }; | |
1025 | ||
1026 | static int pedit_header_offsets[] = { | |
1027 | [TCA_PEDIT_KEY_EX_HDR_TYPE_ETH] = offsetof(struct pedit_headers, eth), | |
1028 | [TCA_PEDIT_KEY_EX_HDR_TYPE_IP4] = offsetof(struct pedit_headers, ip4), | |
1029 | [TCA_PEDIT_KEY_EX_HDR_TYPE_IP6] = offsetof(struct pedit_headers, ip6), | |
1030 | [TCA_PEDIT_KEY_EX_HDR_TYPE_TCP] = offsetof(struct pedit_headers, tcp), | |
1031 | [TCA_PEDIT_KEY_EX_HDR_TYPE_UDP] = offsetof(struct pedit_headers, udp), | |
1032 | }; | |
1033 | ||
1034 | #define pedit_header(_ph, _htype) ((void *)(_ph) + pedit_header_offsets[_htype]) | |
1035 | ||
1036 | static int set_pedit_val(u8 hdr_type, u32 mask, u32 val, u32 offset, | |
1037 | struct pedit_headers *masks, | |
1038 | struct pedit_headers *vals) | |
1039 | { | |
1040 | u32 *curr_pmask, *curr_pval; | |
1041 | ||
1042 | if (hdr_type >= __PEDIT_HDR_TYPE_MAX) | |
1043 | goto out_err; | |
1044 | ||
1045 | curr_pmask = (u32 *)(pedit_header(masks, hdr_type) + offset); | |
1046 | curr_pval = (u32 *)(pedit_header(vals, hdr_type) + offset); | |
1047 | ||
1048 | if (*curr_pmask & mask) /* disallow acting twice on the same location */ | |
1049 | goto out_err; | |
1050 | ||
1051 | *curr_pmask |= mask; | |
1052 | *curr_pval |= (val & mask); | |
1053 | ||
1054 | return 0; | |
1055 | ||
1056 | out_err: | |
1057 | return -EOPNOTSUPP; | |
1058 | } | |
1059 | ||
1060 | struct mlx5_fields { | |
1061 | u8 field; | |
1062 | u8 size; | |
1063 | u32 offset; | |
1064 | }; | |
1065 | ||
1066 | static struct mlx5_fields fields[] = { | |
1067 | {MLX5_ACTION_IN_FIELD_OUT_DMAC_47_16, 4, offsetof(struct pedit_headers, eth.h_dest[0])}, | |
1068 | {MLX5_ACTION_IN_FIELD_OUT_DMAC_15_0, 2, offsetof(struct pedit_headers, eth.h_dest[4])}, | |
1069 | {MLX5_ACTION_IN_FIELD_OUT_SMAC_47_16, 4, offsetof(struct pedit_headers, eth.h_source[0])}, | |
1070 | {MLX5_ACTION_IN_FIELD_OUT_SMAC_15_0, 2, offsetof(struct pedit_headers, eth.h_source[4])}, | |
1071 | {MLX5_ACTION_IN_FIELD_OUT_ETHERTYPE, 2, offsetof(struct pedit_headers, eth.h_proto)}, | |
1072 | ||
1073 | {MLX5_ACTION_IN_FIELD_OUT_IP_DSCP, 1, offsetof(struct pedit_headers, ip4.tos)}, | |
1074 | {MLX5_ACTION_IN_FIELD_OUT_IP_TTL, 1, offsetof(struct pedit_headers, ip4.ttl)}, | |
1075 | {MLX5_ACTION_IN_FIELD_OUT_SIPV4, 4, offsetof(struct pedit_headers, ip4.saddr)}, | |
1076 | {MLX5_ACTION_IN_FIELD_OUT_DIPV4, 4, offsetof(struct pedit_headers, ip4.daddr)}, | |
1077 | ||
1078 | {MLX5_ACTION_IN_FIELD_OUT_SIPV6_127_96, 4, offsetof(struct pedit_headers, ip6.saddr.s6_addr32[0])}, | |
1079 | {MLX5_ACTION_IN_FIELD_OUT_SIPV6_95_64, 4, offsetof(struct pedit_headers, ip6.saddr.s6_addr32[1])}, | |
1080 | {MLX5_ACTION_IN_FIELD_OUT_SIPV6_63_32, 4, offsetof(struct pedit_headers, ip6.saddr.s6_addr32[2])}, | |
1081 | {MLX5_ACTION_IN_FIELD_OUT_SIPV6_31_0, 4, offsetof(struct pedit_headers, ip6.saddr.s6_addr32[3])}, | |
1082 | {MLX5_ACTION_IN_FIELD_OUT_DIPV6_127_96, 4, offsetof(struct pedit_headers, ip6.daddr.s6_addr32[0])}, | |
1083 | {MLX5_ACTION_IN_FIELD_OUT_DIPV6_95_64, 4, offsetof(struct pedit_headers, ip6.daddr.s6_addr32[1])}, | |
1084 | {MLX5_ACTION_IN_FIELD_OUT_DIPV6_63_32, 4, offsetof(struct pedit_headers, ip6.daddr.s6_addr32[2])}, | |
1085 | {MLX5_ACTION_IN_FIELD_OUT_DIPV6_31_0, 4, offsetof(struct pedit_headers, ip6.daddr.s6_addr32[3])}, | |
1086 | ||
1087 | {MLX5_ACTION_IN_FIELD_OUT_TCP_SPORT, 2, offsetof(struct pedit_headers, tcp.source)}, | |
1088 | {MLX5_ACTION_IN_FIELD_OUT_TCP_DPORT, 2, offsetof(struct pedit_headers, tcp.dest)}, | |
1089 | {MLX5_ACTION_IN_FIELD_OUT_TCP_FLAGS, 1, offsetof(struct pedit_headers, tcp.ack_seq) + 5}, | |
1090 | ||
1091 | {MLX5_ACTION_IN_FIELD_OUT_UDP_SPORT, 2, offsetof(struct pedit_headers, udp.source)}, | |
1092 | {MLX5_ACTION_IN_FIELD_OUT_UDP_DPORT, 2, offsetof(struct pedit_headers, udp.dest)}, | |
1093 | }; | |
1094 | ||
1095 | /* On input attr->num_mod_hdr_actions tells how many HW actions can be parsed at | |
1096 | * max from the SW pedit action. On success, it says how many HW actions were | |
1097 | * actually parsed. | |
1098 | */ | |
1099 | static int offload_pedit_fields(struct pedit_headers *masks, | |
1100 | struct pedit_headers *vals, | |
1101 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1102 | { | |
1103 | struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals; | |
d824bf3f | 1104 | int i, action_size, nactions, max_actions, first, last, first_z; |
d79b6df6 | 1105 | void *s_masks_p, *a_masks_p, *vals_p; |
d79b6df6 OG |
1106 | struct mlx5_fields *f; |
1107 | u8 cmd, field_bsize; | |
e3ca4e05 | 1108 | u32 s_mask, a_mask; |
d79b6df6 OG |
1109 | unsigned long mask; |
1110 | void *action; | |
1111 | ||
1112 | set_masks = &masks[TCA_PEDIT_KEY_EX_CMD_SET]; | |
1113 | add_masks = &masks[TCA_PEDIT_KEY_EX_CMD_ADD]; | |
1114 | set_vals = &vals[TCA_PEDIT_KEY_EX_CMD_SET]; | |
1115 | add_vals = &vals[TCA_PEDIT_KEY_EX_CMD_ADD]; | |
1116 | ||
1117 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); | |
1118 | action = parse_attr->mod_hdr_actions; | |
1119 | max_actions = parse_attr->num_mod_hdr_actions; | |
1120 | nactions = 0; | |
1121 | ||
1122 | for (i = 0; i < ARRAY_SIZE(fields); i++) { | |
1123 | f = &fields[i]; | |
1124 | /* avoid seeing bits set from previous iterations */ | |
e3ca4e05 OG |
1125 | s_mask = 0; |
1126 | a_mask = 0; | |
d79b6df6 OG |
1127 | |
1128 | s_masks_p = (void *)set_masks + f->offset; | |
1129 | a_masks_p = (void *)add_masks + f->offset; | |
1130 | ||
1131 | memcpy(&s_mask, s_masks_p, f->size); | |
1132 | memcpy(&a_mask, a_masks_p, f->size); | |
1133 | ||
1134 | if (!s_mask && !a_mask) /* nothing to offload here */ | |
1135 | continue; | |
1136 | ||
1137 | if (s_mask && a_mask) { | |
1138 | printk(KERN_WARNING "mlx5: can't set and add to the same HW field (%x)\n", f->field); | |
1139 | return -EOPNOTSUPP; | |
1140 | } | |
1141 | ||
1142 | if (nactions == max_actions) { | |
1143 | printk(KERN_WARNING "mlx5: parsed %d pedit actions, can't do more\n", nactions); | |
1144 | return -EOPNOTSUPP; | |
1145 | } | |
1146 | ||
1147 | if (s_mask) { | |
1148 | cmd = MLX5_ACTION_TYPE_SET; | |
1149 | mask = s_mask; | |
1150 | vals_p = (void *)set_vals + f->offset; | |
1151 | /* clear to denote we consumed this field */ | |
1152 | memset(s_masks_p, 0, f->size); | |
1153 | } else { | |
1154 | cmd = MLX5_ACTION_TYPE_ADD; | |
1155 | mask = a_mask; | |
1156 | vals_p = (void *)add_vals + f->offset; | |
1157 | /* clear to denote we consumed this field */ | |
1158 | memset(a_masks_p, 0, f->size); | |
1159 | } | |
1160 | ||
d79b6df6 | 1161 | field_bsize = f->size * BITS_PER_BYTE; |
e3ca4e05 | 1162 | |
d824bf3f | 1163 | first_z = find_first_zero_bit(&mask, field_bsize); |
d79b6df6 OG |
1164 | first = find_first_bit(&mask, field_bsize); |
1165 | last = find_last_bit(&mask, field_bsize); | |
d824bf3f | 1166 | if (first > 0 || last != (field_bsize - 1) || first_z < last) { |
d79b6df6 OG |
1167 | printk(KERN_WARNING "mlx5: partial rewrite (mask %lx) is currently not offloaded\n", |
1168 | mask); | |
1169 | return -EOPNOTSUPP; | |
1170 | } | |
1171 | ||
1172 | MLX5_SET(set_action_in, action, action_type, cmd); | |
1173 | MLX5_SET(set_action_in, action, field, f->field); | |
1174 | ||
1175 | if (cmd == MLX5_ACTION_TYPE_SET) { | |
1176 | MLX5_SET(set_action_in, action, offset, 0); | |
1177 | /* length is num of bits to be written, zero means length of 32 */ | |
1178 | MLX5_SET(set_action_in, action, length, field_bsize); | |
1179 | } | |
1180 | ||
1181 | if (field_bsize == 32) | |
e3ca4e05 | 1182 | MLX5_SET(set_action_in, action, data, ntohl(*(__be32 *)vals_p)); |
d79b6df6 | 1183 | else if (field_bsize == 16) |
e3ca4e05 | 1184 | MLX5_SET(set_action_in, action, data, ntohs(*(__be16 *)vals_p)); |
d79b6df6 | 1185 | else if (field_bsize == 8) |
e3ca4e05 | 1186 | MLX5_SET(set_action_in, action, data, *(u8 *)vals_p); |
d79b6df6 OG |
1187 | |
1188 | action += action_size; | |
1189 | nactions++; | |
1190 | } | |
1191 | ||
1192 | parse_attr->num_mod_hdr_actions = nactions; | |
1193 | return 0; | |
1194 | } | |
1195 | ||
1196 | static int alloc_mod_hdr_actions(struct mlx5e_priv *priv, | |
1197 | const struct tc_action *a, int namespace, | |
1198 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1199 | { | |
1200 | int nkeys, action_size, max_actions; | |
1201 | ||
1202 | nkeys = tcf_pedit_nkeys(a); | |
1203 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); | |
1204 | ||
1205 | if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */ | |
1206 | max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, max_modify_header_actions); | |
1207 | else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */ | |
1208 | max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, max_modify_header_actions); | |
1209 | ||
1210 | /* can get up to crazingly 16 HW actions in 32 bits pedit SW key */ | |
1211 | max_actions = min(max_actions, nkeys * 16); | |
1212 | ||
1213 | parse_attr->mod_hdr_actions = kcalloc(max_actions, action_size, GFP_KERNEL); | |
1214 | if (!parse_attr->mod_hdr_actions) | |
1215 | return -ENOMEM; | |
1216 | ||
1217 | parse_attr->num_mod_hdr_actions = max_actions; | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | static const struct pedit_headers zero_masks = {}; | |
1222 | ||
1223 | static int parse_tc_pedit_action(struct mlx5e_priv *priv, | |
1224 | const struct tc_action *a, int namespace, | |
1225 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1226 | { | |
1227 | struct pedit_headers masks[__PEDIT_CMD_MAX], vals[__PEDIT_CMD_MAX], *cmd_masks; | |
1228 | int nkeys, i, err = -EOPNOTSUPP; | |
1229 | u32 mask, val, offset; | |
1230 | u8 cmd, htype; | |
1231 | ||
1232 | nkeys = tcf_pedit_nkeys(a); | |
1233 | ||
1234 | memset(masks, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); | |
1235 | memset(vals, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); | |
1236 | ||
1237 | for (i = 0; i < nkeys; i++) { | |
1238 | htype = tcf_pedit_htype(a, i); | |
1239 | cmd = tcf_pedit_cmd(a, i); | |
1240 | err = -EOPNOTSUPP; /* can't be all optimistic */ | |
1241 | ||
1242 | if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK) { | |
1243 | printk(KERN_WARNING "mlx5: legacy pedit isn't offloaded\n"); | |
1244 | goto out_err; | |
1245 | } | |
1246 | ||
1247 | if (cmd != TCA_PEDIT_KEY_EX_CMD_SET && cmd != TCA_PEDIT_KEY_EX_CMD_ADD) { | |
1248 | printk(KERN_WARNING "mlx5: pedit cmd %d isn't offloaded\n", cmd); | |
1249 | goto out_err; | |
1250 | } | |
1251 | ||
1252 | mask = tcf_pedit_mask(a, i); | |
1253 | val = tcf_pedit_val(a, i); | |
1254 | offset = tcf_pedit_offset(a, i); | |
1255 | ||
1256 | err = set_pedit_val(htype, ~mask, val, offset, &masks[cmd], &vals[cmd]); | |
1257 | if (err) | |
1258 | goto out_err; | |
1259 | } | |
1260 | ||
1261 | err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr); | |
1262 | if (err) | |
1263 | goto out_err; | |
1264 | ||
1265 | err = offload_pedit_fields(masks, vals, parse_attr); | |
1266 | if (err < 0) | |
1267 | goto out_dealloc_parsed_actions; | |
1268 | ||
1269 | for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) { | |
1270 | cmd_masks = &masks[cmd]; | |
1271 | if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) { | |
1272 | printk(KERN_WARNING "mlx5: attempt to offload an unsupported field (cmd %d)\n", | |
1273 | cmd); | |
1274 | print_hex_dump(KERN_WARNING, "mask: ", DUMP_PREFIX_ADDRESS, | |
1275 | 16, 1, cmd_masks, sizeof(zero_masks), true); | |
1276 | err = -EOPNOTSUPP; | |
1277 | goto out_dealloc_parsed_actions; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | return 0; | |
1282 | ||
1283 | out_dealloc_parsed_actions: | |
1284 | kfree(parse_attr->mod_hdr_actions); | |
1285 | out_err: | |
1286 | return err; | |
1287 | } | |
1288 | ||
26c02749 OG |
1289 | static bool csum_offload_supported(struct mlx5e_priv *priv, u32 action, u32 update_flags) |
1290 | { | |
1291 | u32 prot_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR | TCA_CSUM_UPDATE_FLAG_TCP | | |
1292 | TCA_CSUM_UPDATE_FLAG_UDP; | |
1293 | ||
1294 | /* The HW recalcs checksums only if re-writing headers */ | |
1295 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)) { | |
1296 | netdev_warn(priv->netdev, | |
1297 | "TC csum action is only offloaded with pedit\n"); | |
1298 | return false; | |
1299 | } | |
1300 | ||
1301 | if (update_flags & ~prot_flags) { | |
1302 | netdev_warn(priv->netdev, | |
1303 | "can't offload TC csum action for some header/s - flags %#x\n", | |
1304 | update_flags); | |
1305 | return false; | |
1306 | } | |
1307 | ||
1308 | return true; | |
1309 | } | |
1310 | ||
5c40348c | 1311 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
aa0cbbae OG |
1312 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
1313 | struct mlx5e_tc_flow *flow) | |
e3a2b7ed | 1314 | { |
aa0cbbae | 1315 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
e3a2b7ed | 1316 | const struct tc_action *a; |
22dc13c8 | 1317 | LIST_HEAD(actions); |
2f4fe4ca | 1318 | int err; |
e3a2b7ed AV |
1319 | |
1320 | if (tc_no_actions(exts)) | |
1321 | return -EINVAL; | |
1322 | ||
3bc4b7bf OG |
1323 | attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; |
1324 | attr->action = 0; | |
e3a2b7ed | 1325 | |
22dc13c8 WC |
1326 | tcf_exts_to_list(exts, &actions); |
1327 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed | 1328 | if (is_tcf_gact_shot(a)) { |
3bc4b7bf | 1329 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP; |
aad7e08d AV |
1330 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
1331 | flow_table_properties_nic_receive.flow_counter)) | |
3bc4b7bf | 1332 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; |
e3a2b7ed AV |
1333 | continue; |
1334 | } | |
1335 | ||
2f4fe4ca OG |
1336 | if (is_tcf_pedit(a)) { |
1337 | err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL, | |
1338 | parse_attr); | |
1339 | if (err) | |
1340 | return err; | |
1341 | ||
1342 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | | |
1343 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
1344 | continue; | |
1345 | } | |
1346 | ||
26c02749 OG |
1347 | if (is_tcf_csum(a)) { |
1348 | if (csum_offload_supported(priv, attr->action, | |
1349 | tcf_csum_update_flags(a))) | |
1350 | continue; | |
1351 | ||
1352 | return -EOPNOTSUPP; | |
1353 | } | |
1354 | ||
e3a2b7ed AV |
1355 | if (is_tcf_skbedit_mark(a)) { |
1356 | u32 mark = tcf_skbedit_mark(a); | |
1357 | ||
1358 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
1359 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
1360 | mark); | |
1361 | return -EINVAL; | |
1362 | } | |
1363 | ||
3bc4b7bf OG |
1364 | attr->flow_tag = mark; |
1365 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
e3a2b7ed AV |
1366 | continue; |
1367 | } | |
1368 | ||
1369 | return -EINVAL; | |
1370 | } | |
1371 | ||
1372 | return 0; | |
1373 | } | |
1374 | ||
76f7444d OG |
1375 | static inline int cmp_encap_info(struct ip_tunnel_key *a, |
1376 | struct ip_tunnel_key *b) | |
a54e20b4 HHZ |
1377 | { |
1378 | return memcmp(a, b, sizeof(*a)); | |
1379 | } | |
1380 | ||
76f7444d | 1381 | static inline int hash_encap_info(struct ip_tunnel_key *key) |
a54e20b4 | 1382 | { |
76f7444d | 1383 | return jhash(key, sizeof(*key), 0); |
a54e20b4 HHZ |
1384 | } |
1385 | ||
1386 | static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, | |
1387 | struct net_device *mirred_dev, | |
1388 | struct net_device **out_dev, | |
1389 | struct flowi4 *fl4, | |
1390 | struct neighbour **out_n, | |
a54e20b4 HHZ |
1391 | int *out_ttl) |
1392 | { | |
3e621b19 | 1393 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
a54e20b4 HHZ |
1394 | struct rtable *rt; |
1395 | struct neighbour *n = NULL; | |
a54e20b4 HHZ |
1396 | |
1397 | #if IS_ENABLED(CONFIG_INET) | |
abeffce9 AB |
1398 | int ret; |
1399 | ||
a54e20b4 | 1400 | rt = ip_route_output_key(dev_net(mirred_dev), fl4); |
abeffce9 AB |
1401 | ret = PTR_ERR_OR_ZERO(rt); |
1402 | if (ret) | |
1403 | return ret; | |
a54e20b4 HHZ |
1404 | #else |
1405 | return -EOPNOTSUPP; | |
1406 | #endif | |
3e621b19 HHZ |
1407 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ |
1408 | if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) | |
1409 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
1410 | else | |
1411 | *out_dev = rt->dst.dev; | |
a54e20b4 | 1412 | |
75c33da8 | 1413 | *out_ttl = ip4_dst_hoplimit(&rt->dst); |
a54e20b4 HHZ |
1414 | n = dst_neigh_lookup(&rt->dst, &fl4->daddr); |
1415 | ip_rt_put(rt); | |
1416 | if (!n) | |
1417 | return -ENOMEM; | |
1418 | ||
1419 | *out_n = n; | |
a54e20b4 HHZ |
1420 | return 0; |
1421 | } | |
1422 | ||
ce99f6b9 OG |
1423 | static int mlx5e_route_lookup_ipv6(struct mlx5e_priv *priv, |
1424 | struct net_device *mirred_dev, | |
1425 | struct net_device **out_dev, | |
1426 | struct flowi6 *fl6, | |
1427 | struct neighbour **out_n, | |
1428 | int *out_ttl) | |
1429 | { | |
1430 | struct neighbour *n = NULL; | |
1431 | struct dst_entry *dst; | |
1432 | ||
1433 | #if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6) | |
1434 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
1435 | int ret; | |
1436 | ||
1437 | dst = ip6_route_output(dev_net(mirred_dev), NULL, fl6); | |
321fa4ff AB |
1438 | ret = dst->error; |
1439 | if (ret) { | |
ce99f6b9 OG |
1440 | dst_release(dst); |
1441 | return ret; | |
1442 | } | |
1443 | ||
1444 | *out_ttl = ip6_dst_hoplimit(dst); | |
1445 | ||
1446 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ | |
1447 | if (!switchdev_port_same_parent_id(priv->netdev, dst->dev)) | |
1448 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
1449 | else | |
1450 | *out_dev = dst->dev; | |
1451 | #else | |
1452 | return -EOPNOTSUPP; | |
1453 | #endif | |
1454 | ||
1455 | n = dst_neigh_lookup(dst, &fl6->daddr); | |
1456 | dst_release(dst); | |
1457 | if (!n) | |
1458 | return -ENOMEM; | |
1459 | ||
1460 | *out_n = n; | |
1461 | return 0; | |
1462 | } | |
1463 | ||
32f3671f OG |
1464 | static void gen_vxlan_header_ipv4(struct net_device *out_dev, |
1465 | char buf[], int encap_size, | |
1466 | unsigned char h_dest[ETH_ALEN], | |
1467 | int ttl, | |
1468 | __be32 daddr, | |
1469 | __be32 saddr, | |
1470 | __be16 udp_dst_port, | |
1471 | __be32 vx_vni) | |
a54e20b4 | 1472 | { |
a54e20b4 HHZ |
1473 | struct ethhdr *eth = (struct ethhdr *)buf; |
1474 | struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr)); | |
1475 | struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr)); | |
1476 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
1477 | ||
1478 | memset(buf, 0, encap_size); | |
1479 | ||
1480 | ether_addr_copy(eth->h_dest, h_dest); | |
1481 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
1482 | eth->h_proto = htons(ETH_P_IP); | |
1483 | ||
1484 | ip->daddr = daddr; | |
1485 | ip->saddr = saddr; | |
1486 | ||
1487 | ip->ttl = ttl; | |
1488 | ip->protocol = IPPROTO_UDP; | |
1489 | ip->version = 0x4; | |
1490 | ip->ihl = 0x5; | |
1491 | ||
1492 | udp->dest = udp_dst_port; | |
1493 | vxh->vx_flags = VXLAN_HF_VNI; | |
1494 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
a54e20b4 HHZ |
1495 | } |
1496 | ||
225aabaf OG |
1497 | static void gen_vxlan_header_ipv6(struct net_device *out_dev, |
1498 | char buf[], int encap_size, | |
1499 | unsigned char h_dest[ETH_ALEN], | |
1500 | int ttl, | |
1501 | struct in6_addr *daddr, | |
1502 | struct in6_addr *saddr, | |
1503 | __be16 udp_dst_port, | |
1504 | __be32 vx_vni) | |
ce99f6b9 | 1505 | { |
ce99f6b9 OG |
1506 | struct ethhdr *eth = (struct ethhdr *)buf; |
1507 | struct ipv6hdr *ip6h = (struct ipv6hdr *)((char *)eth + sizeof(struct ethhdr)); | |
1508 | struct udphdr *udp = (struct udphdr *)((char *)ip6h + sizeof(struct ipv6hdr)); | |
1509 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
1510 | ||
1511 | memset(buf, 0, encap_size); | |
1512 | ||
1513 | ether_addr_copy(eth->h_dest, h_dest); | |
1514 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
1515 | eth->h_proto = htons(ETH_P_IPV6); | |
1516 | ||
1517 | ip6_flow_hdr(ip6h, 0, 0); | |
1518 | /* the HW fills up ipv6 payload len */ | |
1519 | ip6h->nexthdr = IPPROTO_UDP; | |
1520 | ip6h->hop_limit = ttl; | |
1521 | ip6h->daddr = *daddr; | |
1522 | ip6h->saddr = *saddr; | |
1523 | ||
1524 | udp->dest = udp_dst_port; | |
1525 | vxh->vx_flags = VXLAN_HF_VNI; | |
1526 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
ce99f6b9 OG |
1527 | } |
1528 | ||
a54e20b4 HHZ |
1529 | static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, |
1530 | struct net_device *mirred_dev, | |
1a8552bd | 1531 | struct mlx5e_encap_entry *e) |
a54e20b4 HHZ |
1532 | { |
1533 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
32f3671f | 1534 | int ipv4_encap_size = ETH_HLEN + sizeof(struct iphdr) + VXLAN_HLEN; |
76f7444d | 1535 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
1a8552bd | 1536 | struct net_device *out_dev; |
a42485eb | 1537 | struct neighbour *n = NULL; |
a54e20b4 | 1538 | struct flowi4 fl4 = {}; |
a54e20b4 | 1539 | char *encap_header; |
32f3671f | 1540 | int ttl, err; |
033354d5 | 1541 | u8 nud_state; |
32f3671f OG |
1542 | |
1543 | if (max_encap_size < ipv4_encap_size) { | |
1544 | mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", | |
1545 | ipv4_encap_size, max_encap_size); | |
1546 | return -EOPNOTSUPP; | |
1547 | } | |
a54e20b4 | 1548 | |
32f3671f | 1549 | encap_header = kzalloc(ipv4_encap_size, GFP_KERNEL); |
a54e20b4 HHZ |
1550 | if (!encap_header) |
1551 | return -ENOMEM; | |
1552 | ||
1553 | switch (e->tunnel_type) { | |
1554 | case MLX5_HEADER_TYPE_VXLAN: | |
1555 | fl4.flowi4_proto = IPPROTO_UDP; | |
76f7444d | 1556 | fl4.fl4_dport = tun_key->tp_dst; |
a54e20b4 HHZ |
1557 | break; |
1558 | default: | |
1559 | err = -EOPNOTSUPP; | |
1560 | goto out; | |
1561 | } | |
9a941117 | 1562 | fl4.flowi4_tos = tun_key->tos; |
76f7444d | 1563 | fl4.daddr = tun_key->u.ipv4.dst; |
9a941117 | 1564 | fl4.saddr = tun_key->u.ipv4.src; |
a54e20b4 | 1565 | |
1a8552bd | 1566 | err = mlx5e_route_lookup_ipv4(priv, mirred_dev, &out_dev, |
9a941117 | 1567 | &fl4, &n, &ttl); |
a54e20b4 HHZ |
1568 | if (err) |
1569 | goto out; | |
1570 | ||
232c0013 HHZ |
1571 | /* used by mlx5e_detach_encap to lookup a neigh hash table |
1572 | * entry in the neigh hash table when a user deletes a rule | |
1573 | */ | |
1574 | e->m_neigh.dev = n->dev; | |
f6dfb4c3 | 1575 | e->m_neigh.family = n->ops->family; |
232c0013 HHZ |
1576 | memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len); |
1577 | e->out_dev = out_dev; | |
1578 | ||
1579 | /* It's importent to add the neigh to the hash table before checking | |
1580 | * the neigh validity state. So if we'll get a notification, in case the | |
1581 | * neigh changes it's validity state, we would find the relevant neigh | |
1582 | * in the hash. | |
1583 | */ | |
1584 | err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e); | |
1585 | if (err) | |
1586 | goto out; | |
1587 | ||
033354d5 HHZ |
1588 | read_lock_bh(&n->lock); |
1589 | nud_state = n->nud_state; | |
1590 | ether_addr_copy(e->h_dest, n->ha); | |
1591 | read_unlock_bh(&n->lock); | |
1592 | ||
a54e20b4 HHZ |
1593 | switch (e->tunnel_type) { |
1594 | case MLX5_HEADER_TYPE_VXLAN: | |
1a8552bd | 1595 | gen_vxlan_header_ipv4(out_dev, encap_header, |
32f3671f OG |
1596 | ipv4_encap_size, e->h_dest, ttl, |
1597 | fl4.daddr, | |
1598 | fl4.saddr, tun_key->tp_dst, | |
1599 | tunnel_id_to_key32(tun_key->tun_id)); | |
a54e20b4 HHZ |
1600 | break; |
1601 | default: | |
1602 | err = -EOPNOTSUPP; | |
232c0013 HHZ |
1603 | goto destroy_neigh_entry; |
1604 | } | |
1605 | e->encap_size = ipv4_encap_size; | |
1606 | e->encap_header = encap_header; | |
1607 | ||
1608 | if (!(nud_state & NUD_VALID)) { | |
1609 | neigh_event_send(n, NULL); | |
27902f08 WY |
1610 | err = -EAGAIN; |
1611 | goto out; | |
a54e20b4 HHZ |
1612 | } |
1613 | ||
1614 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
32f3671f | 1615 | ipv4_encap_size, encap_header, &e->encap_id); |
232c0013 HHZ |
1616 | if (err) |
1617 | goto destroy_neigh_entry; | |
1618 | ||
1619 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 1620 | mlx5e_rep_queue_neigh_stats_work(netdev_priv(out_dev)); |
232c0013 HHZ |
1621 | neigh_release(n); |
1622 | return err; | |
1623 | ||
1624 | destroy_neigh_entry: | |
1625 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); | |
a54e20b4 HHZ |
1626 | out: |
1627 | kfree(encap_header); | |
232c0013 HHZ |
1628 | if (n) |
1629 | neigh_release(n); | |
a54e20b4 HHZ |
1630 | return err; |
1631 | } | |
1632 | ||
ce99f6b9 OG |
1633 | static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, |
1634 | struct net_device *mirred_dev, | |
1a8552bd | 1635 | struct mlx5e_encap_entry *e) |
ce99f6b9 OG |
1636 | { |
1637 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
225aabaf | 1638 | int ipv6_encap_size = ETH_HLEN + sizeof(struct ipv6hdr) + VXLAN_HLEN; |
ce99f6b9 | 1639 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
1a8552bd | 1640 | struct net_device *out_dev; |
ce99f6b9 OG |
1641 | struct neighbour *n = NULL; |
1642 | struct flowi6 fl6 = {}; | |
1643 | char *encap_header; | |
225aabaf | 1644 | int err, ttl = 0; |
033354d5 | 1645 | u8 nud_state; |
ce99f6b9 | 1646 | |
225aabaf OG |
1647 | if (max_encap_size < ipv6_encap_size) { |
1648 | mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", | |
1649 | ipv6_encap_size, max_encap_size); | |
1650 | return -EOPNOTSUPP; | |
1651 | } | |
ce99f6b9 | 1652 | |
225aabaf | 1653 | encap_header = kzalloc(ipv6_encap_size, GFP_KERNEL); |
ce99f6b9 OG |
1654 | if (!encap_header) |
1655 | return -ENOMEM; | |
1656 | ||
1657 | switch (e->tunnel_type) { | |
1658 | case MLX5_HEADER_TYPE_VXLAN: | |
1659 | fl6.flowi6_proto = IPPROTO_UDP; | |
1660 | fl6.fl6_dport = tun_key->tp_dst; | |
1661 | break; | |
1662 | default: | |
1663 | err = -EOPNOTSUPP; | |
1664 | goto out; | |
1665 | } | |
1666 | ||
1667 | fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label); | |
1668 | fl6.daddr = tun_key->u.ipv6.dst; | |
1669 | fl6.saddr = tun_key->u.ipv6.src; | |
1670 | ||
1a8552bd | 1671 | err = mlx5e_route_lookup_ipv6(priv, mirred_dev, &out_dev, |
ce99f6b9 OG |
1672 | &fl6, &n, &ttl); |
1673 | if (err) | |
1674 | goto out; | |
1675 | ||
232c0013 HHZ |
1676 | /* used by mlx5e_detach_encap to lookup a neigh hash table |
1677 | * entry in the neigh hash table when a user deletes a rule | |
1678 | */ | |
1679 | e->m_neigh.dev = n->dev; | |
f6dfb4c3 | 1680 | e->m_neigh.family = n->ops->family; |
232c0013 HHZ |
1681 | memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len); |
1682 | e->out_dev = out_dev; | |
1683 | ||
1684 | /* It's importent to add the neigh to the hash table before checking | |
1685 | * the neigh validity state. So if we'll get a notification, in case the | |
1686 | * neigh changes it's validity state, we would find the relevant neigh | |
1687 | * in the hash. | |
1688 | */ | |
1689 | err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e); | |
1690 | if (err) | |
1691 | goto out; | |
1692 | ||
033354d5 HHZ |
1693 | read_lock_bh(&n->lock); |
1694 | nud_state = n->nud_state; | |
1695 | ether_addr_copy(e->h_dest, n->ha); | |
1696 | read_unlock_bh(&n->lock); | |
1697 | ||
ce99f6b9 OG |
1698 | switch (e->tunnel_type) { |
1699 | case MLX5_HEADER_TYPE_VXLAN: | |
1a8552bd | 1700 | gen_vxlan_header_ipv6(out_dev, encap_header, |
225aabaf OG |
1701 | ipv6_encap_size, e->h_dest, ttl, |
1702 | &fl6.daddr, | |
1703 | &fl6.saddr, tun_key->tp_dst, | |
1704 | tunnel_id_to_key32(tun_key->tun_id)); | |
ce99f6b9 OG |
1705 | break; |
1706 | default: | |
1707 | err = -EOPNOTSUPP; | |
232c0013 HHZ |
1708 | goto destroy_neigh_entry; |
1709 | } | |
1710 | ||
1711 | e->encap_size = ipv6_encap_size; | |
1712 | e->encap_header = encap_header; | |
1713 | ||
1714 | if (!(nud_state & NUD_VALID)) { | |
1715 | neigh_event_send(n, NULL); | |
27902f08 WY |
1716 | err = -EAGAIN; |
1717 | goto out; | |
ce99f6b9 OG |
1718 | } |
1719 | ||
1720 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
225aabaf | 1721 | ipv6_encap_size, encap_header, &e->encap_id); |
232c0013 HHZ |
1722 | if (err) |
1723 | goto destroy_neigh_entry; | |
1724 | ||
1725 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 1726 | mlx5e_rep_queue_neigh_stats_work(netdev_priv(out_dev)); |
232c0013 HHZ |
1727 | neigh_release(n); |
1728 | return err; | |
1729 | ||
1730 | destroy_neigh_entry: | |
1731 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); | |
ce99f6b9 | 1732 | out: |
ce99f6b9 | 1733 | kfree(encap_header); |
232c0013 HHZ |
1734 | if (n) |
1735 | neigh_release(n); | |
ce99f6b9 OG |
1736 | return err; |
1737 | } | |
1738 | ||
a54e20b4 HHZ |
1739 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
1740 | struct ip_tunnel_info *tun_info, | |
1741 | struct net_device *mirred_dev, | |
45247bf2 OG |
1742 | struct net_device **encap_dev, |
1743 | struct mlx5e_tc_flow *flow) | |
a54e20b4 HHZ |
1744 | { |
1745 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
1ad9a00a | 1746 | struct net_device *up_dev = mlx5_eswitch_get_uplink_netdev(esw); |
a54e20b4 | 1747 | unsigned short family = ip_tunnel_info_af(tun_info); |
45247bf2 OG |
1748 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); |
1749 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; | |
a54e20b4 | 1750 | struct ip_tunnel_key *key = &tun_info->key; |
c1ae1152 | 1751 | struct mlx5e_encap_entry *e; |
45247bf2 | 1752 | int tunnel_type, err = 0; |
a54e20b4 HHZ |
1753 | uintptr_t hash_key; |
1754 | bool found = false; | |
a54e20b4 | 1755 | |
2fcd82e9 | 1756 | /* udp dst port must be set */ |
a54e20b4 | 1757 | if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst))) |
2fcd82e9 | 1758 | goto vxlan_encap_offload_err; |
a54e20b4 | 1759 | |
cd377663 | 1760 | /* setting udp src port isn't supported */ |
2fcd82e9 OG |
1761 | if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) { |
1762 | vxlan_encap_offload_err: | |
1763 | netdev_warn(priv->netdev, | |
1764 | "must set udp dst port and not set udp src port\n"); | |
cd377663 | 1765 | return -EOPNOTSUPP; |
2fcd82e9 | 1766 | } |
cd377663 | 1767 | |
1ad9a00a | 1768 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->tp_dst)) && |
a54e20b4 | 1769 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) { |
a54e20b4 HHZ |
1770 | tunnel_type = MLX5_HEADER_TYPE_VXLAN; |
1771 | } else { | |
2fcd82e9 OG |
1772 | netdev_warn(priv->netdev, |
1773 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst)); | |
a54e20b4 HHZ |
1774 | return -EOPNOTSUPP; |
1775 | } | |
1776 | ||
76f7444d | 1777 | hash_key = hash_encap_info(key); |
a54e20b4 HHZ |
1778 | |
1779 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
1780 | encap_hlist, hash_key) { | |
76f7444d | 1781 | if (!cmp_encap_info(&e->tun_info.key, key)) { |
a54e20b4 HHZ |
1782 | found = true; |
1783 | break; | |
1784 | } | |
1785 | } | |
1786 | ||
45247bf2 OG |
1787 | if (found) |
1788 | goto attach_flow; | |
a54e20b4 HHZ |
1789 | |
1790 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
1791 | if (!e) | |
1792 | return -ENOMEM; | |
1793 | ||
76f7444d | 1794 | e->tun_info = *tun_info; |
a54e20b4 HHZ |
1795 | e->tunnel_type = tunnel_type; |
1796 | INIT_LIST_HEAD(&e->flows); | |
1797 | ||
ce99f6b9 | 1798 | if (family == AF_INET) |
1a8552bd | 1799 | err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e); |
ce99f6b9 | 1800 | else if (family == AF_INET6) |
1a8552bd | 1801 | err = mlx5e_create_encap_header_ipv6(priv, mirred_dev, e); |
ce99f6b9 | 1802 | |
232c0013 | 1803 | if (err && err != -EAGAIN) |
a54e20b4 HHZ |
1804 | goto out_err; |
1805 | ||
a54e20b4 HHZ |
1806 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); |
1807 | ||
45247bf2 OG |
1808 | attach_flow: |
1809 | list_add(&flow->encap, &e->flows); | |
1810 | *encap_dev = e->out_dev; | |
232c0013 HHZ |
1811 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) |
1812 | attr->encap_id = e->encap_id; | |
45247bf2 | 1813 | |
232c0013 | 1814 | return err; |
a54e20b4 HHZ |
1815 | |
1816 | out_err: | |
1817 | kfree(e); | |
1818 | return err; | |
1819 | } | |
1820 | ||
03a9d11e | 1821 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
d7e75a32 | 1822 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
a54e20b4 | 1823 | struct mlx5e_tc_flow *flow) |
03a9d11e | 1824 | { |
ecf5bb79 | 1825 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
1d447a39 | 1826 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
a54e20b4 | 1827 | struct ip_tunnel_info *info = NULL; |
03a9d11e | 1828 | const struct tc_action *a; |
22dc13c8 | 1829 | LIST_HEAD(actions); |
a54e20b4 | 1830 | bool encap = false; |
232c0013 | 1831 | int err = 0; |
03a9d11e OG |
1832 | |
1833 | if (tc_no_actions(exts)) | |
1834 | return -EINVAL; | |
1835 | ||
776b12b6 | 1836 | memset(attr, 0, sizeof(*attr)); |
1d447a39 | 1837 | attr->in_rep = rpriv->rep; |
03a9d11e | 1838 | |
22dc13c8 WC |
1839 | tcf_exts_to_list(exts, &actions); |
1840 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 1841 | if (is_tcf_gact_shot(a)) { |
8b32580d OG |
1842 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
1843 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
1844 | continue; |
1845 | } | |
1846 | ||
d7e75a32 OG |
1847 | if (is_tcf_pedit(a)) { |
1848 | err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB, | |
1849 | parse_attr); | |
1850 | if (err) | |
1851 | return err; | |
1852 | ||
1853 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; | |
1854 | continue; | |
1855 | } | |
1856 | ||
26c02749 OG |
1857 | if (is_tcf_csum(a)) { |
1858 | if (csum_offload_supported(priv, attr->action, | |
1859 | tcf_csum_update_flags(a))) | |
1860 | continue; | |
1861 | ||
1862 | return -EOPNOTSUPP; | |
1863 | } | |
1864 | ||
5724b8b5 | 1865 | if (is_tcf_mirred_egress_redirect(a)) { |
03a9d11e | 1866 | int ifindex = tcf_mirred_ifindex(a); |
45247bf2 | 1867 | struct net_device *out_dev, *encap_dev = NULL; |
03a9d11e | 1868 | struct mlx5e_priv *out_priv; |
03a9d11e OG |
1869 | |
1870 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
1871 | ||
a54e20b4 HHZ |
1872 | if (switchdev_port_same_parent_id(priv->netdev, |
1873 | out_dev)) { | |
1874 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1875 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1876 | out_priv = netdev_priv(out_dev); | |
1d447a39 SM |
1877 | rpriv = out_priv->ppriv; |
1878 | attr->out_rep = rpriv->rep; | |
a54e20b4 HHZ |
1879 | } else if (encap) { |
1880 | err = mlx5e_attach_encap(priv, info, | |
45247bf2 | 1881 | out_dev, &encap_dev, flow); |
232c0013 | 1882 | if (err && err != -EAGAIN) |
a54e20b4 | 1883 | return err; |
a54e20b4 HHZ |
1884 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | |
1885 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1886 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
45247bf2 | 1887 | out_priv = netdev_priv(encap_dev); |
1d447a39 SM |
1888 | rpriv = out_priv->ppriv; |
1889 | attr->out_rep = rpriv->rep; | |
232c0013 | 1890 | attr->parse_attr = parse_attr; |
a54e20b4 | 1891 | } else { |
03a9d11e OG |
1892 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
1893 | priv->netdev->name, out_dev->name); | |
1894 | return -EINVAL; | |
1895 | } | |
a54e20b4 HHZ |
1896 | continue; |
1897 | } | |
03a9d11e | 1898 | |
a54e20b4 HHZ |
1899 | if (is_tcf_tunnel_set(a)) { |
1900 | info = tcf_tunnel_info(a); | |
1901 | if (info) | |
1902 | encap = true; | |
1903 | else | |
1904 | return -EOPNOTSUPP; | |
03a9d11e OG |
1905 | continue; |
1906 | } | |
1907 | ||
8b32580d | 1908 | if (is_tcf_vlan(a)) { |
09c91ddf | 1909 | if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) { |
8b32580d | 1910 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; |
09c91ddf | 1911 | } else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) { |
8b32580d OG |
1912 | if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q)) |
1913 | return -EOPNOTSUPP; | |
1914 | ||
1915 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
1916 | attr->vlan = tcf_vlan_push_vid(a); | |
09c91ddf OG |
1917 | } else { /* action is TCA_VLAN_ACT_MODIFY */ |
1918 | return -EOPNOTSUPP; | |
8b32580d OG |
1919 | } |
1920 | continue; | |
1921 | } | |
1922 | ||
bbd00f7e HHZ |
1923 | if (is_tcf_tunnel_release(a)) { |
1924 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; | |
1925 | continue; | |
1926 | } | |
1927 | ||
03a9d11e OG |
1928 | return -EINVAL; |
1929 | } | |
232c0013 | 1930 | return err; |
03a9d11e OG |
1931 | } |
1932 | ||
e3a2b7ed AV |
1933 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
1934 | struct tc_cls_flower_offload *f) | |
1935 | { | |
3bc4b7bf | 1936 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
17091853 | 1937 | struct mlx5e_tc_flow_parse_attr *parse_attr; |
acff797c | 1938 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
3bc4b7bf OG |
1939 | struct mlx5e_tc_flow *flow; |
1940 | int attr_size, err = 0; | |
65ba8fb7 | 1941 | u8 flow_flags = 0; |
e3a2b7ed | 1942 | |
65ba8fb7 OG |
1943 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
1944 | flow_flags = MLX5E_TC_FLOW_ESWITCH; | |
1945 | attr_size = sizeof(struct mlx5_esw_flow_attr); | |
3bc4b7bf OG |
1946 | } else { |
1947 | flow_flags = MLX5E_TC_FLOW_NIC; | |
1948 | attr_size = sizeof(struct mlx5_nic_flow_attr); | |
65ba8fb7 | 1949 | } |
e3a2b7ed | 1950 | |
65ba8fb7 | 1951 | flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); |
1b9a07ee | 1952 | parse_attr = kvzalloc(sizeof(*parse_attr), GFP_KERNEL); |
17091853 | 1953 | if (!parse_attr || !flow) { |
e3a2b7ed AV |
1954 | err = -ENOMEM; |
1955 | goto err_free; | |
1956 | } | |
1957 | ||
1958 | flow->cookie = f->cookie; | |
65ba8fb7 | 1959 | flow->flags = flow_flags; |
e3a2b7ed | 1960 | |
17091853 | 1961 | err = parse_cls_flower(priv, flow, &parse_attr->spec, f); |
e3a2b7ed AV |
1962 | if (err < 0) |
1963 | goto err_free; | |
1964 | ||
65ba8fb7 | 1965 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
d7e75a32 | 1966 | err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow); |
adb4c123 | 1967 | if (err < 0) |
232c0013 | 1968 | goto err_handle_encap_flow; |
aa0cbbae | 1969 | flow->rule = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow); |
adb4c123 | 1970 | } else { |
aa0cbbae | 1971 | err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow); |
adb4c123 OG |
1972 | if (err < 0) |
1973 | goto err_free; | |
aa0cbbae | 1974 | flow->rule = mlx5e_tc_add_nic_flow(priv, parse_attr, flow); |
adb4c123 | 1975 | } |
e3a2b7ed | 1976 | |
e3a2b7ed AV |
1977 | if (IS_ERR(flow->rule)) { |
1978 | err = PTR_ERR(flow->rule); | |
aa0cbbae | 1979 | goto err_free; |
e3a2b7ed AV |
1980 | } |
1981 | ||
0b67a38f | 1982 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; |
5c40348c OG |
1983 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
1984 | tc->ht_params); | |
1985 | if (err) | |
1986 | goto err_del_rule; | |
1987 | ||
232c0013 HHZ |
1988 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH && |
1989 | !(flow->esw_attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP)) | |
1990 | kvfree(parse_attr); | |
1991 | return err; | |
e3a2b7ed | 1992 | |
5c40348c | 1993 | err_del_rule: |
5e86397a | 1994 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed | 1995 | |
232c0013 HHZ |
1996 | err_handle_encap_flow: |
1997 | if (err == -EAGAIN) { | |
1998 | err = rhashtable_insert_fast(&tc->ht, &flow->node, | |
1999 | tc->ht_params); | |
2000 | if (err) | |
2001 | mlx5e_tc_del_flow(priv, flow); | |
2002 | else | |
2003 | return 0; | |
2004 | } | |
2005 | ||
e3a2b7ed | 2006 | err_free: |
17091853 | 2007 | kvfree(parse_attr); |
232c0013 | 2008 | kfree(flow); |
e3a2b7ed AV |
2009 | return err; |
2010 | } | |
2011 | ||
2012 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
2013 | struct tc_cls_flower_offload *f) | |
2014 | { | |
2015 | struct mlx5e_tc_flow *flow; | |
acff797c | 2016 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
2017 | |
2018 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
2019 | tc->ht_params); | |
2020 | if (!flow) | |
2021 | return -EINVAL; | |
2022 | ||
2023 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
2024 | ||
961e8979 | 2025 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
2026 | |
2027 | kfree(flow); | |
2028 | ||
2029 | return 0; | |
2030 | } | |
2031 | ||
aad7e08d AV |
2032 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
2033 | struct tc_cls_flower_offload *f) | |
2034 | { | |
2035 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
2036 | struct mlx5e_tc_flow *flow; | |
aad7e08d AV |
2037 | struct mlx5_fc *counter; |
2038 | u64 bytes; | |
2039 | u64 packets; | |
2040 | u64 lastuse; | |
2041 | ||
2042 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
2043 | tc->ht_params); | |
2044 | if (!flow) | |
2045 | return -EINVAL; | |
2046 | ||
0b67a38f HHZ |
2047 | if (!(flow->flags & MLX5E_TC_FLOW_OFFLOADED)) |
2048 | return 0; | |
2049 | ||
aad7e08d AV |
2050 | counter = mlx5_flow_rule_counter(flow->rule); |
2051 | if (!counter) | |
2052 | return 0; | |
2053 | ||
2054 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
2055 | ||
d897a638 | 2056 | tcf_exts_stats_update(f->exts, bytes, packets, lastuse); |
fed06ee8 | 2057 | |
aad7e08d AV |
2058 | return 0; |
2059 | } | |
2060 | ||
e8f887ac AV |
2061 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
2062 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
2063 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
2064 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
2065 | .automatic_shrinking = true, | |
2066 | }; | |
2067 | ||
2068 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
2069 | { | |
acff797c | 2070 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac | 2071 | |
11c9c548 OG |
2072 | hash_init(tc->mod_hdr_tbl); |
2073 | ||
e8f887ac AV |
2074 | tc->ht_params = mlx5e_tc_flow_ht_params; |
2075 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
2076 | } | |
2077 | ||
2078 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
2079 | { | |
2080 | struct mlx5e_tc_flow *flow = ptr; | |
2081 | struct mlx5e_priv *priv = arg; | |
2082 | ||
961e8979 | 2083 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
2084 | kfree(flow); |
2085 | } | |
2086 | ||
2087 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
2088 | { | |
acff797c | 2089 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
2090 | |
2091 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
2092 | ||
acff797c MG |
2093 | if (!IS_ERR_OR_NULL(tc->t)) { |
2094 | mlx5_destroy_flow_table(tc->t); | |
2095 | tc->t = NULL; | |
e8f887ac AV |
2096 | } |
2097 | } |