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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; |
5c65c564 | 59 | u32 hairpin_tirn; |
3bc4b7bf OG |
60 | }; |
61 | ||
65ba8fb7 OG |
62 | enum { |
63 | MLX5E_TC_FLOW_ESWITCH = BIT(0), | |
3bc4b7bf | 64 | MLX5E_TC_FLOW_NIC = BIT(1), |
0b67a38f | 65 | MLX5E_TC_FLOW_OFFLOADED = BIT(2), |
5c65c564 | 66 | MLX5E_TC_FLOW_HAIRPIN = BIT(3), |
65ba8fb7 OG |
67 | }; |
68 | ||
e8f887ac AV |
69 | struct mlx5e_tc_flow { |
70 | struct rhash_head node; | |
71 | u64 cookie; | |
65ba8fb7 | 72 | u8 flags; |
74491de9 | 73 | struct mlx5_flow_handle *rule; |
11c9c548 OG |
74 | struct list_head encap; /* flows sharing the same encap ID */ |
75 | struct list_head mod_hdr; /* flows sharing the same mod hdr ID */ | |
5c65c564 | 76 | struct list_head hairpin; /* flows sharing the same hairpin */ |
3bc4b7bf OG |
77 | union { |
78 | struct mlx5_esw_flow_attr esw_attr[0]; | |
79 | struct mlx5_nic_flow_attr nic_attr[0]; | |
80 | }; | |
e8f887ac AV |
81 | }; |
82 | ||
17091853 | 83 | struct mlx5e_tc_flow_parse_attr { |
3c37745e | 84 | struct ip_tunnel_info tun_info; |
17091853 | 85 | struct mlx5_flow_spec spec; |
d79b6df6 OG |
86 | int num_mod_hdr_actions; |
87 | void *mod_hdr_actions; | |
3c37745e | 88 | int mirred_ifindex; |
17091853 OG |
89 | }; |
90 | ||
a54e20b4 HHZ |
91 | enum { |
92 | MLX5_HEADER_TYPE_VXLAN = 0x0, | |
93 | MLX5_HEADER_TYPE_NVGRE = 0x1, | |
94 | }; | |
95 | ||
acff797c | 96 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 |
21b9c144 | 97 | #define MLX5E_TC_TABLE_MAX_GROUP_SIZE (1 << 16) |
e8f887ac | 98 | |
77ab67b7 OG |
99 | struct mlx5e_hairpin { |
100 | struct mlx5_hairpin *pair; | |
101 | ||
102 | struct mlx5_core_dev *func_mdev; | |
103 | u32 tdn; | |
104 | u32 tirn; | |
105 | }; | |
106 | ||
5c65c564 OG |
107 | struct mlx5e_hairpin_entry { |
108 | /* a node of a hash table which keeps all the hairpin entries */ | |
109 | struct hlist_node hairpin_hlist; | |
110 | ||
111 | /* flows sharing the same hairpin */ | |
112 | struct list_head flows; | |
113 | ||
d8822868 | 114 | u16 peer_vhca_id; |
106be53b | 115 | u8 prio; |
5c65c564 OG |
116 | struct mlx5e_hairpin *hp; |
117 | }; | |
118 | ||
11c9c548 OG |
119 | struct mod_hdr_key { |
120 | int num_actions; | |
121 | void *actions; | |
122 | }; | |
123 | ||
124 | struct mlx5e_mod_hdr_entry { | |
125 | /* a node of a hash table which keeps all the mod_hdr entries */ | |
126 | struct hlist_node mod_hdr_hlist; | |
127 | ||
128 | /* flows sharing the same mod_hdr entry */ | |
129 | struct list_head flows; | |
130 | ||
131 | struct mod_hdr_key key; | |
132 | ||
133 | u32 mod_hdr_id; | |
134 | }; | |
135 | ||
136 | #define MLX5_MH_ACT_SZ MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) | |
137 | ||
138 | static inline u32 hash_mod_hdr_info(struct mod_hdr_key *key) | |
139 | { | |
140 | return jhash(key->actions, | |
141 | key->num_actions * MLX5_MH_ACT_SZ, 0); | |
142 | } | |
143 | ||
144 | static inline int cmp_mod_hdr_info(struct mod_hdr_key *a, | |
145 | struct mod_hdr_key *b) | |
146 | { | |
147 | if (a->num_actions != b->num_actions) | |
148 | return 1; | |
149 | ||
150 | return memcmp(a->actions, b->actions, a->num_actions * MLX5_MH_ACT_SZ); | |
151 | } | |
152 | ||
153 | static int mlx5e_attach_mod_hdr(struct mlx5e_priv *priv, | |
154 | struct mlx5e_tc_flow *flow, | |
155 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
156 | { | |
157 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
158 | int num_actions, actions_size, namespace, err; | |
159 | struct mlx5e_mod_hdr_entry *mh; | |
160 | struct mod_hdr_key key; | |
161 | bool found = false; | |
162 | u32 hash_key; | |
163 | ||
164 | num_actions = parse_attr->num_mod_hdr_actions; | |
165 | actions_size = MLX5_MH_ACT_SZ * num_actions; | |
166 | ||
167 | key.actions = parse_attr->mod_hdr_actions; | |
168 | key.num_actions = num_actions; | |
169 | ||
170 | hash_key = hash_mod_hdr_info(&key); | |
171 | ||
172 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { | |
173 | namespace = MLX5_FLOW_NAMESPACE_FDB; | |
174 | hash_for_each_possible(esw->offloads.mod_hdr_tbl, mh, | |
175 | mod_hdr_hlist, hash_key) { | |
176 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
177 | found = true; | |
178 | break; | |
179 | } | |
180 | } | |
181 | } else { | |
182 | namespace = MLX5_FLOW_NAMESPACE_KERNEL; | |
183 | hash_for_each_possible(priv->fs.tc.mod_hdr_tbl, mh, | |
184 | mod_hdr_hlist, hash_key) { | |
185 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
186 | found = true; | |
187 | break; | |
188 | } | |
189 | } | |
190 | } | |
191 | ||
192 | if (found) | |
193 | goto attach_flow; | |
194 | ||
195 | mh = kzalloc(sizeof(*mh) + actions_size, GFP_KERNEL); | |
196 | if (!mh) | |
197 | return -ENOMEM; | |
198 | ||
199 | mh->key.actions = (void *)mh + sizeof(*mh); | |
200 | memcpy(mh->key.actions, key.actions, actions_size); | |
201 | mh->key.num_actions = num_actions; | |
202 | INIT_LIST_HEAD(&mh->flows); | |
203 | ||
204 | err = mlx5_modify_header_alloc(priv->mdev, namespace, | |
205 | mh->key.num_actions, | |
206 | mh->key.actions, | |
207 | &mh->mod_hdr_id); | |
208 | if (err) | |
209 | goto out_err; | |
210 | ||
211 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
212 | hash_add(esw->offloads.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
213 | else | |
214 | hash_add(priv->fs.tc.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
215 | ||
216 | attach_flow: | |
217 | list_add(&flow->mod_hdr, &mh->flows); | |
218 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
219 | flow->esw_attr->mod_hdr_id = mh->mod_hdr_id; | |
220 | else | |
221 | flow->nic_attr->mod_hdr_id = mh->mod_hdr_id; | |
222 | ||
223 | return 0; | |
224 | ||
225 | out_err: | |
226 | kfree(mh); | |
227 | return err; | |
228 | } | |
229 | ||
230 | static void mlx5e_detach_mod_hdr(struct mlx5e_priv *priv, | |
231 | struct mlx5e_tc_flow *flow) | |
232 | { | |
233 | struct list_head *next = flow->mod_hdr.next; | |
234 | ||
235 | list_del(&flow->mod_hdr); | |
236 | ||
237 | if (list_empty(next)) { | |
238 | struct mlx5e_mod_hdr_entry *mh; | |
239 | ||
240 | mh = list_entry(next, struct mlx5e_mod_hdr_entry, flows); | |
241 | ||
242 | mlx5_modify_header_dealloc(priv->mdev, mh->mod_hdr_id); | |
243 | hash_del(&mh->mod_hdr_hlist); | |
244 | kfree(mh); | |
245 | } | |
246 | } | |
247 | ||
77ab67b7 OG |
248 | static |
249 | struct mlx5_core_dev *mlx5e_hairpin_get_mdev(struct net *net, int ifindex) | |
250 | { | |
251 | struct net_device *netdev; | |
252 | struct mlx5e_priv *priv; | |
253 | ||
254 | netdev = __dev_get_by_index(net, ifindex); | |
255 | priv = netdev_priv(netdev); | |
256 | return priv->mdev; | |
257 | } | |
258 | ||
259 | static int mlx5e_hairpin_create_transport(struct mlx5e_hairpin *hp) | |
260 | { | |
261 | u32 in[MLX5_ST_SZ_DW(create_tir_in)] = {0}; | |
262 | void *tirc; | |
263 | int err; | |
264 | ||
265 | err = mlx5_core_alloc_transport_domain(hp->func_mdev, &hp->tdn); | |
266 | if (err) | |
267 | goto alloc_tdn_err; | |
268 | ||
269 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
270 | ||
271 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT); | |
ddae74ac | 272 | MLX5_SET(tirc, tirc, inline_rqn, hp->pair->rqn[0]); |
77ab67b7 OG |
273 | MLX5_SET(tirc, tirc, transport_domain, hp->tdn); |
274 | ||
275 | err = mlx5_core_create_tir(hp->func_mdev, in, MLX5_ST_SZ_BYTES(create_tir_in), &hp->tirn); | |
276 | if (err) | |
277 | goto create_tir_err; | |
278 | ||
279 | return 0; | |
280 | ||
281 | create_tir_err: | |
282 | mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); | |
283 | alloc_tdn_err: | |
284 | return err; | |
285 | } | |
286 | ||
287 | static void mlx5e_hairpin_destroy_transport(struct mlx5e_hairpin *hp) | |
288 | { | |
289 | mlx5_core_destroy_tir(hp->func_mdev, hp->tirn); | |
290 | mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); | |
291 | } | |
292 | ||
293 | static struct mlx5e_hairpin * | |
294 | mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params, | |
295 | int peer_ifindex) | |
296 | { | |
297 | struct mlx5_core_dev *func_mdev, *peer_mdev; | |
298 | struct mlx5e_hairpin *hp; | |
299 | struct mlx5_hairpin *pair; | |
300 | int err; | |
301 | ||
302 | hp = kzalloc(sizeof(*hp), GFP_KERNEL); | |
303 | if (!hp) | |
304 | return ERR_PTR(-ENOMEM); | |
305 | ||
306 | func_mdev = priv->mdev; | |
307 | peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); | |
308 | ||
309 | pair = mlx5_core_hairpin_create(func_mdev, peer_mdev, params); | |
310 | if (IS_ERR(pair)) { | |
311 | err = PTR_ERR(pair); | |
312 | goto create_pair_err; | |
313 | } | |
314 | hp->pair = pair; | |
315 | hp->func_mdev = func_mdev; | |
316 | ||
317 | err = mlx5e_hairpin_create_transport(hp); | |
318 | if (err) | |
319 | goto create_transport_err; | |
320 | ||
321 | return hp; | |
322 | ||
323 | create_transport_err: | |
324 | mlx5_core_hairpin_destroy(hp->pair); | |
325 | create_pair_err: | |
326 | kfree(hp); | |
327 | return ERR_PTR(err); | |
328 | } | |
329 | ||
330 | static void mlx5e_hairpin_destroy(struct mlx5e_hairpin *hp) | |
331 | { | |
332 | mlx5e_hairpin_destroy_transport(hp); | |
333 | mlx5_core_hairpin_destroy(hp->pair); | |
334 | kvfree(hp); | |
335 | } | |
336 | ||
106be53b OG |
337 | static inline u32 hash_hairpin_info(u16 peer_vhca_id, u8 prio) |
338 | { | |
339 | return (peer_vhca_id << 16 | prio); | |
340 | } | |
341 | ||
5c65c564 | 342 | static struct mlx5e_hairpin_entry *mlx5e_hairpin_get(struct mlx5e_priv *priv, |
106be53b | 343 | u16 peer_vhca_id, u8 prio) |
5c65c564 OG |
344 | { |
345 | struct mlx5e_hairpin_entry *hpe; | |
106be53b | 346 | u32 hash_key = hash_hairpin_info(peer_vhca_id, prio); |
5c65c564 OG |
347 | |
348 | hash_for_each_possible(priv->fs.tc.hairpin_tbl, hpe, | |
106be53b OG |
349 | hairpin_hlist, hash_key) { |
350 | if (hpe->peer_vhca_id == peer_vhca_id && hpe->prio == prio) | |
5c65c564 OG |
351 | return hpe; |
352 | } | |
353 | ||
354 | return NULL; | |
355 | } | |
356 | ||
106be53b OG |
357 | #define UNKNOWN_MATCH_PRIO 8 |
358 | ||
359 | static int mlx5e_hairpin_get_prio(struct mlx5e_priv *priv, | |
360 | struct mlx5_flow_spec *spec, u8 *match_prio) | |
361 | { | |
362 | void *headers_c, *headers_v; | |
363 | u8 prio_val, prio_mask = 0; | |
364 | bool vlan_present; | |
365 | ||
366 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
367 | if (priv->dcbx_dp.trust_state != MLX5_QPTS_TRUST_PCP) { | |
368 | netdev_warn(priv->netdev, | |
369 | "only PCP trust state supported for hairpin\n"); | |
370 | return -EOPNOTSUPP; | |
371 | } | |
372 | #endif | |
373 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); | |
374 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); | |
375 | ||
376 | vlan_present = MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag); | |
377 | if (vlan_present) { | |
378 | prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio); | |
379 | prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio); | |
380 | } | |
381 | ||
382 | if (!vlan_present || !prio_mask) { | |
383 | prio_val = UNKNOWN_MATCH_PRIO; | |
384 | } else if (prio_mask != 0x7) { | |
385 | netdev_warn(priv->netdev, | |
386 | "masked priority match not supported for hairpin\n"); | |
387 | return -EOPNOTSUPP; | |
388 | } | |
389 | ||
390 | *match_prio = prio_val; | |
391 | return 0; | |
392 | } | |
393 | ||
5c65c564 OG |
394 | static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, |
395 | struct mlx5e_tc_flow *flow, | |
396 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
397 | { | |
398 | int peer_ifindex = parse_attr->mirred_ifindex; | |
399 | struct mlx5_hairpin_params params; | |
d8822868 | 400 | struct mlx5_core_dev *peer_mdev; |
5c65c564 OG |
401 | struct mlx5e_hairpin_entry *hpe; |
402 | struct mlx5e_hairpin *hp; | |
106be53b | 403 | u8 match_prio; |
d8822868 | 404 | u16 peer_id; |
5c65c564 OG |
405 | int err; |
406 | ||
d8822868 OG |
407 | peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); |
408 | if (!MLX5_CAP_GEN(priv->mdev, hairpin) || !MLX5_CAP_GEN(peer_mdev, hairpin)) { | |
5c65c564 OG |
409 | netdev_warn(priv->netdev, "hairpin is not supported\n"); |
410 | return -EOPNOTSUPP; | |
411 | } | |
412 | ||
d8822868 | 413 | peer_id = MLX5_CAP_GEN(peer_mdev, vhca_id); |
106be53b OG |
414 | err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio); |
415 | if (err) | |
416 | return err; | |
417 | hpe = mlx5e_hairpin_get(priv, peer_id, match_prio); | |
5c65c564 OG |
418 | if (hpe) |
419 | goto attach_flow; | |
420 | ||
421 | hpe = kzalloc(sizeof(*hpe), GFP_KERNEL); | |
422 | if (!hpe) | |
423 | return -ENOMEM; | |
424 | ||
425 | INIT_LIST_HEAD(&hpe->flows); | |
d8822868 | 426 | hpe->peer_vhca_id = peer_id; |
106be53b | 427 | hpe->prio = match_prio; |
5c65c564 OG |
428 | |
429 | params.log_data_size = 15; | |
430 | params.log_data_size = min_t(u8, params.log_data_size, | |
431 | MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz)); | |
432 | params.log_data_size = max_t(u8, params.log_data_size, | |
433 | MLX5_CAP_GEN(priv->mdev, log_min_hairpin_wq_data_sz)); | |
434 | params.q_counter = priv->q_counter; | |
435 | ||
436 | hp = mlx5e_hairpin_create(priv, ¶ms, peer_ifindex); | |
437 | if (IS_ERR(hp)) { | |
438 | err = PTR_ERR(hp); | |
439 | goto create_hairpin_err; | |
440 | } | |
441 | ||
106be53b | 442 | netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d log data size %d\n", |
ddae74ac OG |
443 | hp->tirn, hp->pair->rqn[0], hp->pair->peer_mdev->priv.name, |
444 | hp->pair->sqn[0], match_prio, params.log_data_size); | |
5c65c564 OG |
445 | |
446 | hpe->hp = hp; | |
106be53b OG |
447 | hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist, |
448 | hash_hairpin_info(peer_id, match_prio)); | |
5c65c564 OG |
449 | |
450 | attach_flow: | |
451 | flow->nic_attr->hairpin_tirn = hpe->hp->tirn; | |
452 | list_add(&flow->hairpin, &hpe->flows); | |
453 | return 0; | |
454 | ||
455 | create_hairpin_err: | |
456 | kfree(hpe); | |
457 | return err; | |
458 | } | |
459 | ||
460 | static void mlx5e_hairpin_flow_del(struct mlx5e_priv *priv, | |
461 | struct mlx5e_tc_flow *flow) | |
462 | { | |
463 | struct list_head *next = flow->hairpin.next; | |
464 | ||
465 | list_del(&flow->hairpin); | |
466 | ||
467 | /* no more hairpin flows for us, release the hairpin pair */ | |
468 | if (list_empty(next)) { | |
469 | struct mlx5e_hairpin_entry *hpe; | |
470 | ||
471 | hpe = list_entry(next, struct mlx5e_hairpin_entry, flows); | |
472 | ||
473 | netdev_dbg(priv->netdev, "del hairpin: peer %s\n", | |
474 | hpe->hp->pair->peer_mdev->priv.name); | |
475 | ||
476 | mlx5e_hairpin_destroy(hpe->hp); | |
477 | hash_del(&hpe->hairpin_hlist); | |
478 | kfree(hpe); | |
479 | } | |
480 | } | |
481 | ||
74491de9 MB |
482 | static struct mlx5_flow_handle * |
483 | mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, | |
17091853 | 484 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
aa0cbbae | 485 | struct mlx5e_tc_flow *flow) |
e8f887ac | 486 | { |
aa0cbbae | 487 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
aad7e08d | 488 | struct mlx5_core_dev *dev = priv->mdev; |
5c65c564 | 489 | struct mlx5_flow_destination dest[2] = {}; |
66958ed9 | 490 | struct mlx5_flow_act flow_act = { |
3bc4b7bf OG |
491 | .action = attr->action, |
492 | .flow_tag = attr->flow_tag, | |
66958ed9 HHZ |
493 | .encap_id = 0, |
494 | }; | |
aad7e08d | 495 | struct mlx5_fc *counter = NULL; |
74491de9 | 496 | struct mlx5_flow_handle *rule; |
e8f887ac | 497 | bool table_created = false; |
5c65c564 | 498 | int err, dest_ix = 0; |
e8f887ac | 499 | |
3bc4b7bf | 500 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
5c65c564 OG |
501 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) { |
502 | err = mlx5e_hairpin_flow_add(priv, flow, parse_attr); | |
503 | if (err) { | |
504 | rule = ERR_PTR(err); | |
505 | goto err_add_hairpin_flow; | |
506 | } | |
507 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_TIR; | |
508 | dest[dest_ix].tir_num = attr->hairpin_tirn; | |
509 | } else { | |
510 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
511 | dest[dest_ix].ft = priv->fs.vlan.ft.t; | |
512 | } | |
513 | dest_ix++; | |
514 | } | |
aad7e08d | 515 | |
5c65c564 OG |
516 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
517 | counter = mlx5_fc_create(dev, true); | |
518 | if (IS_ERR(counter)) { | |
519 | rule = ERR_CAST(counter); | |
520 | goto err_fc_create; | |
521 | } | |
522 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
523 | dest[dest_ix].counter = counter; | |
524 | dest_ix++; | |
aad7e08d AV |
525 | } |
526 | ||
2f4fe4ca | 527 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
3099eb5a | 528 | err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); |
d7e75a32 | 529 | flow_act.modify_id = attr->mod_hdr_id; |
2f4fe4ca OG |
530 | kfree(parse_attr->mod_hdr_actions); |
531 | if (err) { | |
532 | rule = ERR_PTR(err); | |
533 | goto err_create_mod_hdr_id; | |
534 | } | |
535 | } | |
536 | ||
acff797c | 537 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
21b9c144 OG |
538 | int tc_grp_size, tc_tbl_size; |
539 | u32 max_flow_counter; | |
540 | ||
541 | max_flow_counter = (MLX5_CAP_GEN(dev, max_flow_counter_31_16) << 16) | | |
542 | MLX5_CAP_GEN(dev, max_flow_counter_15_0); | |
543 | ||
544 | tc_grp_size = min_t(int, max_flow_counter, MLX5E_TC_TABLE_MAX_GROUP_SIZE); | |
545 | ||
546 | tc_tbl_size = min_t(int, tc_grp_size * MLX5E_TC_TABLE_NUM_GROUPS, | |
547 | BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev, log_max_ft_size))); | |
548 | ||
acff797c MG |
549 | priv->fs.tc.t = |
550 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
551 | MLX5E_TC_PRIO, | |
21b9c144 | 552 | tc_tbl_size, |
acff797c | 553 | MLX5E_TC_TABLE_NUM_GROUPS, |
c9f1b073 | 554 | 0, 0); |
acff797c | 555 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
556 | netdev_err(priv->netdev, |
557 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
558 | rule = ERR_CAST(priv->fs.tc.t); |
559 | goto err_create_ft; | |
e8f887ac AV |
560 | } |
561 | ||
562 | table_created = true; | |
563 | } | |
564 | ||
17091853 OG |
565 | parse_attr->spec.match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
566 | rule = mlx5_add_flow_rules(priv->fs.tc.t, &parse_attr->spec, | |
5c65c564 | 567 | &flow_act, dest, dest_ix); |
aad7e08d AV |
568 | |
569 | if (IS_ERR(rule)) | |
570 | goto err_add_rule; | |
571 | ||
572 | return rule; | |
e8f887ac | 573 | |
aad7e08d AV |
574 | err_add_rule: |
575 | if (table_created) { | |
acff797c MG |
576 | mlx5_destroy_flow_table(priv->fs.tc.t); |
577 | priv->fs.tc.t = NULL; | |
e8f887ac | 578 | } |
aad7e08d | 579 | err_create_ft: |
2f4fe4ca | 580 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
3099eb5a | 581 | mlx5e_detach_mod_hdr(priv, flow); |
2f4fe4ca | 582 | err_create_mod_hdr_id: |
aad7e08d | 583 | mlx5_fc_destroy(dev, counter); |
5c65c564 OG |
584 | err_fc_create: |
585 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) | |
586 | mlx5e_hairpin_flow_del(priv, flow); | |
587 | err_add_hairpin_flow: | |
e8f887ac AV |
588 | return rule; |
589 | } | |
590 | ||
d85cdccb OG |
591 | static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, |
592 | struct mlx5e_tc_flow *flow) | |
593 | { | |
513f8f7f | 594 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
d85cdccb OG |
595 | struct mlx5_fc *counter = NULL; |
596 | ||
aa0cbbae OG |
597 | counter = mlx5_flow_rule_counter(flow->rule); |
598 | mlx5_del_flow_rules(flow->rule); | |
599 | mlx5_fc_destroy(priv->mdev, counter); | |
d85cdccb OG |
600 | |
601 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { | |
602 | mlx5_destroy_flow_table(priv->fs.tc.t); | |
603 | priv->fs.tc.t = NULL; | |
604 | } | |
2f4fe4ca | 605 | |
513f8f7f | 606 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
3099eb5a | 607 | mlx5e_detach_mod_hdr(priv, flow); |
5c65c564 OG |
608 | |
609 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) | |
610 | mlx5e_hairpin_flow_del(priv, flow); | |
d85cdccb OG |
611 | } |
612 | ||
aa0cbbae OG |
613 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
614 | struct mlx5e_tc_flow *flow); | |
615 | ||
3c37745e OG |
616 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
617 | struct ip_tunnel_info *tun_info, | |
618 | struct net_device *mirred_dev, | |
619 | struct net_device **encap_dev, | |
620 | struct mlx5e_tc_flow *flow); | |
621 | ||
74491de9 MB |
622 | static struct mlx5_flow_handle * |
623 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, | |
17091853 | 624 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
aa0cbbae | 625 | struct mlx5e_tc_flow *flow) |
adb4c123 OG |
626 | { |
627 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
aa0cbbae | 628 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
3c37745e OG |
629 | struct net_device *out_dev, *encap_dev = NULL; |
630 | struct mlx5_flow_handle *rule = NULL; | |
631 | struct mlx5e_rep_priv *rpriv; | |
632 | struct mlx5e_priv *out_priv; | |
8b32580d OG |
633 | int err; |
634 | ||
3c37745e OG |
635 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) { |
636 | out_dev = __dev_get_by_index(dev_net(priv->netdev), | |
637 | attr->parse_attr->mirred_ifindex); | |
638 | err = mlx5e_attach_encap(priv, &parse_attr->tun_info, | |
639 | out_dev, &encap_dev, flow); | |
640 | if (err) { | |
641 | rule = ERR_PTR(err); | |
642 | if (err != -EAGAIN) | |
643 | goto err_attach_encap; | |
644 | } | |
645 | out_priv = netdev_priv(encap_dev); | |
646 | rpriv = out_priv->ppriv; | |
647 | attr->out_rep = rpriv->rep; | |
648 | } | |
649 | ||
8b32580d | 650 | err = mlx5_eswitch_add_vlan_action(esw, attr); |
aa0cbbae OG |
651 | if (err) { |
652 | rule = ERR_PTR(err); | |
653 | goto err_add_vlan; | |
654 | } | |
adb4c123 | 655 | |
d7e75a32 | 656 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
1a9527bb | 657 | err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); |
d7e75a32 OG |
658 | kfree(parse_attr->mod_hdr_actions); |
659 | if (err) { | |
660 | rule = ERR_PTR(err); | |
661 | goto err_mod_hdr; | |
662 | } | |
663 | } | |
664 | ||
3c37745e OG |
665 | /* we get here if (1) there's no error (rule being null) or when |
666 | * (2) there's an encap action and we're on -EAGAIN (no valid neigh) | |
667 | */ | |
668 | if (rule != ERR_PTR(-EAGAIN)) { | |
669 | rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr); | |
670 | if (IS_ERR(rule)) | |
671 | goto err_add_rule; | |
672 | } | |
aa0cbbae OG |
673 | return rule; |
674 | ||
675 | err_add_rule: | |
513f8f7f | 676 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
1a9527bb | 677 | mlx5e_detach_mod_hdr(priv, flow); |
d7e75a32 | 678 | err_mod_hdr: |
aa0cbbae OG |
679 | mlx5_eswitch_del_vlan_action(esw, attr); |
680 | err_add_vlan: | |
681 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) | |
682 | mlx5e_detach_encap(priv, flow); | |
3c37745e | 683 | err_attach_encap: |
aa0cbbae OG |
684 | return rule; |
685 | } | |
d85cdccb OG |
686 | |
687 | static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, | |
688 | struct mlx5e_tc_flow *flow) | |
689 | { | |
690 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
d7e75a32 | 691 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
d85cdccb | 692 | |
232c0013 HHZ |
693 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { |
694 | flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; | |
513f8f7f | 695 | mlx5_eswitch_del_offloaded_rule(esw, flow->rule, attr); |
232c0013 | 696 | } |
d85cdccb | 697 | |
513f8f7f | 698 | mlx5_eswitch_del_vlan_action(esw, attr); |
d85cdccb | 699 | |
513f8f7f | 700 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) { |
d85cdccb | 701 | mlx5e_detach_encap(priv, flow); |
513f8f7f | 702 | kvfree(attr->parse_attr); |
232c0013 | 703 | } |
d7e75a32 | 704 | |
513f8f7f | 705 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
1a9527bb | 706 | mlx5e_detach_mod_hdr(priv, flow); |
d85cdccb OG |
707 | } |
708 | ||
232c0013 HHZ |
709 | void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, |
710 | struct mlx5e_encap_entry *e) | |
711 | { | |
3c37745e OG |
712 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
713 | struct mlx5_esw_flow_attr *esw_attr; | |
232c0013 HHZ |
714 | struct mlx5e_tc_flow *flow; |
715 | int err; | |
716 | ||
717 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
718 | e->encap_size, e->encap_header, | |
719 | &e->encap_id); | |
720 | if (err) { | |
721 | mlx5_core_warn(priv->mdev, "Failed to offload cached encapsulation header, %d\n", | |
722 | err); | |
723 | return; | |
724 | } | |
725 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 726 | mlx5e_rep_queue_neigh_stats_work(priv); |
232c0013 HHZ |
727 | |
728 | list_for_each_entry(flow, &e->flows, encap) { | |
3c37745e OG |
729 | esw_attr = flow->esw_attr; |
730 | esw_attr->encap_id = e->encap_id; | |
731 | flow->rule = mlx5_eswitch_add_offloaded_rule(esw, &esw_attr->parse_attr->spec, esw_attr); | |
232c0013 HHZ |
732 | if (IS_ERR(flow->rule)) { |
733 | err = PTR_ERR(flow->rule); | |
734 | mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n", | |
735 | err); | |
736 | continue; | |
737 | } | |
738 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; | |
739 | } | |
740 | } | |
741 | ||
742 | void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv, | |
743 | struct mlx5e_encap_entry *e) | |
744 | { | |
3c37745e | 745 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
232c0013 | 746 | struct mlx5e_tc_flow *flow; |
232c0013 HHZ |
747 | |
748 | list_for_each_entry(flow, &e->flows, encap) { | |
749 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { | |
750 | flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; | |
3c37745e | 751 | mlx5_eswitch_del_offloaded_rule(esw, flow->rule, flow->esw_attr); |
232c0013 HHZ |
752 | } |
753 | } | |
754 | ||
755 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) { | |
756 | e->flags &= ~MLX5_ENCAP_ENTRY_VALID; | |
757 | mlx5_encap_dealloc(priv->mdev, e->encap_id); | |
758 | } | |
759 | } | |
760 | ||
f6dfb4c3 HHZ |
761 | void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) |
762 | { | |
763 | struct mlx5e_neigh *m_neigh = &nhe->m_neigh; | |
764 | u64 bytes, packets, lastuse = 0; | |
765 | struct mlx5e_tc_flow *flow; | |
766 | struct mlx5e_encap_entry *e; | |
767 | struct mlx5_fc *counter; | |
768 | struct neigh_table *tbl; | |
769 | bool neigh_used = false; | |
770 | struct neighbour *n; | |
771 | ||
772 | if (m_neigh->family == AF_INET) | |
773 | tbl = &arp_tbl; | |
774 | #if IS_ENABLED(CONFIG_IPV6) | |
775 | else if (m_neigh->family == AF_INET6) | |
776 | tbl = ipv6_stub->nd_tbl; | |
777 | #endif | |
778 | else | |
779 | return; | |
780 | ||
781 | list_for_each_entry(e, &nhe->encap_list, encap_list) { | |
782 | if (!(e->flags & MLX5_ENCAP_ENTRY_VALID)) | |
783 | continue; | |
784 | list_for_each_entry(flow, &e->flows, encap) { | |
785 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { | |
786 | counter = mlx5_flow_rule_counter(flow->rule); | |
787 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
788 | if (time_after((unsigned long)lastuse, nhe->reported_lastuse)) { | |
789 | neigh_used = true; | |
790 | break; | |
791 | } | |
792 | } | |
793 | } | |
794 | } | |
795 | ||
796 | if (neigh_used) { | |
797 | nhe->reported_lastuse = jiffies; | |
798 | ||
799 | /* find the relevant neigh according to the cached device and | |
800 | * dst ip pair | |
801 | */ | |
802 | n = neigh_lookup(tbl, &m_neigh->dst_ip, m_neigh->dev); | |
803 | if (!n) { | |
804 | WARN(1, "The neighbour already freed\n"); | |
805 | return; | |
806 | } | |
807 | ||
808 | neigh_event_send(n, NULL); | |
809 | neigh_release(n); | |
810 | } | |
811 | } | |
812 | ||
d85cdccb OG |
813 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
814 | struct mlx5e_tc_flow *flow) | |
815 | { | |
5067b602 RD |
816 | struct list_head *next = flow->encap.next; |
817 | ||
818 | list_del(&flow->encap); | |
819 | if (list_empty(next)) { | |
c1ae1152 | 820 | struct mlx5e_encap_entry *e; |
5067b602 | 821 | |
c1ae1152 | 822 | e = list_entry(next, struct mlx5e_encap_entry, flows); |
232c0013 HHZ |
823 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); |
824 | ||
825 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) | |
5067b602 | 826 | mlx5_encap_dealloc(priv->mdev, e->encap_id); |
232c0013 | 827 | |
cdc5a7f3 | 828 | hash_del_rcu(&e->encap_hlist); |
232c0013 | 829 | kfree(e->encap_header); |
5067b602 RD |
830 | kfree(e); |
831 | } | |
832 | } | |
833 | ||
e8f887ac | 834 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 835 | struct mlx5e_tc_flow *flow) |
e8f887ac | 836 | { |
d85cdccb OG |
837 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) |
838 | mlx5e_tc_del_fdb_flow(priv, flow); | |
839 | else | |
840 | mlx5e_tc_del_nic_flow(priv, flow); | |
e8f887ac AV |
841 | } |
842 | ||
bbd00f7e HHZ |
843 | static void parse_vxlan_attr(struct mlx5_flow_spec *spec, |
844 | struct tc_cls_flower_offload *f) | |
845 | { | |
846 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
847 | outer_headers); | |
848 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
849 | outer_headers); | |
850 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
851 | misc_parameters); | |
852 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
853 | misc_parameters); | |
854 | ||
855 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol); | |
856 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP); | |
857 | ||
858 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) { | |
859 | struct flow_dissector_key_keyid *key = | |
860 | skb_flow_dissector_target(f->dissector, | |
861 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
862 | f->key); | |
863 | struct flow_dissector_key_keyid *mask = | |
864 | skb_flow_dissector_target(f->dissector, | |
865 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
866 | f->mask); | |
867 | MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni, | |
868 | be32_to_cpu(mask->keyid)); | |
869 | MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni, | |
870 | be32_to_cpu(key->keyid)); | |
871 | } | |
872 | } | |
873 | ||
874 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
875 | struct mlx5_flow_spec *spec, | |
876 | struct tc_cls_flower_offload *f) | |
877 | { | |
878 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
879 | outer_headers); | |
880 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
881 | outer_headers); | |
882 | ||
2e72eb43 OG |
883 | struct flow_dissector_key_control *enc_control = |
884 | skb_flow_dissector_target(f->dissector, | |
885 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
886 | f->key); | |
887 | ||
bbd00f7e HHZ |
888 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) { |
889 | struct flow_dissector_key_ports *key = | |
890 | skb_flow_dissector_target(f->dissector, | |
891 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
892 | f->key); | |
893 | struct flow_dissector_key_ports *mask = | |
894 | skb_flow_dissector_target(f->dissector, | |
895 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
896 | f->mask); | |
1ad9a00a | 897 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
a4b97ab4 | 898 | struct mlx5e_rep_priv *uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); |
5ed99fb4 | 899 | struct net_device *up_dev = uplink_rpriv->netdev; |
1ad9a00a | 900 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); |
bbd00f7e HHZ |
901 | |
902 | /* Full udp dst port must be given */ | |
903 | if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst))) | |
2fcd82e9 | 904 | goto vxlan_match_offload_err; |
bbd00f7e | 905 | |
1ad9a00a | 906 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->dst)) && |
bbd00f7e HHZ |
907 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) |
908 | parse_vxlan_attr(spec, f); | |
2fcd82e9 OG |
909 | else { |
910 | netdev_warn(priv->netdev, | |
911 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst)); | |
bbd00f7e | 912 | return -EOPNOTSUPP; |
2fcd82e9 | 913 | } |
bbd00f7e HHZ |
914 | |
915 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
916 | udp_dport, ntohs(mask->dst)); | |
917 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
918 | udp_dport, ntohs(key->dst)); | |
919 | ||
cd377663 OG |
920 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
921 | udp_sport, ntohs(mask->src)); | |
922 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
923 | udp_sport, ntohs(key->src)); | |
bbd00f7e | 924 | } else { /* udp dst port must be given */ |
2fcd82e9 OG |
925 | vxlan_match_offload_err: |
926 | netdev_warn(priv->netdev, | |
927 | "IP tunnel decap offload supported only for vxlan, must set UDP dport\n"); | |
928 | return -EOPNOTSUPP; | |
bbd00f7e HHZ |
929 | } |
930 | ||
2e72eb43 | 931 | if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
bbd00f7e HHZ |
932 | struct flow_dissector_key_ipv4_addrs *key = |
933 | skb_flow_dissector_target(f->dissector, | |
934 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
935 | f->key); | |
936 | struct flow_dissector_key_ipv4_addrs *mask = | |
937 | skb_flow_dissector_target(f->dissector, | |
938 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
939 | f->mask); | |
940 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
941 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
942 | ntohl(mask->src)); | |
943 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
944 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
945 | ntohl(key->src)); | |
946 | ||
947 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
948 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
949 | ntohl(mask->dst)); | |
950 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
951 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
952 | ntohl(key->dst)); | |
bbd00f7e | 953 | |
2e72eb43 OG |
954 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); |
955 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
19f44401 OG |
956 | } else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { |
957 | struct flow_dissector_key_ipv6_addrs *key = | |
958 | skb_flow_dissector_target(f->dissector, | |
959 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
960 | f->key); | |
961 | struct flow_dissector_key_ipv6_addrs *mask = | |
962 | skb_flow_dissector_target(f->dissector, | |
963 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
964 | f->mask); | |
965 | ||
966 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
967 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
968 | &mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
969 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
970 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
971 | &key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
972 | ||
973 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
974 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
975 | &mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
976 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
977 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
978 | &key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
979 | ||
980 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
981 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); | |
2e72eb43 | 982 | } |
bbd00f7e HHZ |
983 | |
984 | /* Enforce DMAC when offloading incoming tunneled flows. | |
985 | * Flow counters require a match on the DMAC. | |
986 | */ | |
987 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
988 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
989 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
990 | dmac_47_16), priv->netdev->dev_addr); | |
991 | ||
992 | /* let software handle IP fragments */ | |
993 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
994 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
995 | ||
996 | return 0; | |
997 | } | |
998 | ||
de0af0bf RD |
999 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
1000 | struct mlx5_flow_spec *spec, | |
1001 | struct tc_cls_flower_offload *f, | |
1002 | u8 *min_inline) | |
e3a2b7ed | 1003 | { |
c5bb1730 MG |
1004 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
1005 | outer_headers); | |
1006 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1007 | outer_headers); | |
e3a2b7ed AV |
1008 | u16 addr_type = 0; |
1009 | u8 ip_proto = 0; | |
1010 | ||
de0af0bf RD |
1011 | *min_inline = MLX5_INLINE_MODE_L2; |
1012 | ||
e3a2b7ed AV |
1013 | if (f->dissector->used_keys & |
1014 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
1015 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
1016 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 1017 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
e3a2b7ed AV |
1018 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
1019 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
1020 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
1021 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
1022 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
1023 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
1024 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
e77834ec | 1025 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | |
fd7da28b OG |
1026 | BIT(FLOW_DISSECTOR_KEY_TCP) | |
1027 | BIT(FLOW_DISSECTOR_KEY_IP))) { | |
e3a2b7ed AV |
1028 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
1029 | f->dissector->used_keys); | |
1030 | return -EOPNOTSUPP; | |
1031 | } | |
1032 | ||
bbd00f7e HHZ |
1033 | if ((dissector_uses_key(f->dissector, |
1034 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || | |
1035 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || | |
1036 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && | |
1037 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { | |
1038 | struct flow_dissector_key_control *key = | |
1039 | skb_flow_dissector_target(f->dissector, | |
1040 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
1041 | f->key); | |
1042 | switch (key->addr_type) { | |
1043 | case FLOW_DISSECTOR_KEY_IPV4_ADDRS: | |
19f44401 | 1044 | case FLOW_DISSECTOR_KEY_IPV6_ADDRS: |
bbd00f7e HHZ |
1045 | if (parse_tunnel_attr(priv, spec, f)) |
1046 | return -EOPNOTSUPP; | |
1047 | break; | |
1048 | default: | |
1049 | return -EOPNOTSUPP; | |
1050 | } | |
1051 | ||
1052 | /* In decap flow, header pointers should point to the inner | |
1053 | * headers, outer header were already set by parse_tunnel_attr | |
1054 | */ | |
1055 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
1056 | inner_headers); | |
1057 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1058 | inner_headers); | |
1059 | } | |
1060 | ||
e3a2b7ed AV |
1061 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { |
1062 | struct flow_dissector_key_control *key = | |
1063 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 1064 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed | 1065 | f->key); |
3f7d0eb4 OG |
1066 | |
1067 | struct flow_dissector_key_control *mask = | |
1068 | skb_flow_dissector_target(f->dissector, | |
1069 | FLOW_DISSECTOR_KEY_CONTROL, | |
1070 | f->mask); | |
e3a2b7ed | 1071 | addr_type = key->addr_type; |
3f7d0eb4 OG |
1072 | |
1073 | if (mask->flags & FLOW_DIS_IS_FRAGMENT) { | |
1074 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
1075 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
1076 | key->flags & FLOW_DIS_IS_FRAGMENT); | |
0827444d OG |
1077 | |
1078 | /* the HW doesn't need L3 inline to match on frag=no */ | |
1079 | if (key->flags & FLOW_DIS_IS_FRAGMENT) | |
1080 | *min_inline = MLX5_INLINE_MODE_IP; | |
3f7d0eb4 | 1081 | } |
e3a2b7ed AV |
1082 | } |
1083 | ||
1084 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
1085 | struct flow_dissector_key_basic *key = | |
1086 | skb_flow_dissector_target(f->dissector, | |
1087 | FLOW_DISSECTOR_KEY_BASIC, | |
1088 | f->key); | |
1089 | struct flow_dissector_key_basic *mask = | |
1090 | skb_flow_dissector_target(f->dissector, | |
1091 | FLOW_DISSECTOR_KEY_BASIC, | |
1092 | f->mask); | |
1093 | ip_proto = key->ip_proto; | |
1094 | ||
1095 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
1096 | ntohs(mask->n_proto)); | |
1097 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
1098 | ntohs(key->n_proto)); | |
1099 | ||
1100 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
1101 | mask->ip_proto); | |
1102 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
1103 | key->ip_proto); | |
de0af0bf RD |
1104 | |
1105 | if (mask->ip_proto) | |
1106 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
1107 | } |
1108 | ||
1109 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
1110 | struct flow_dissector_key_eth_addrs *key = | |
1111 | skb_flow_dissector_target(f->dissector, | |
1112 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
1113 | f->key); | |
1114 | struct flow_dissector_key_eth_addrs *mask = | |
1115 | skb_flow_dissector_target(f->dissector, | |
1116 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
1117 | f->mask); | |
1118 | ||
1119 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1120 | dmac_47_16), | |
1121 | mask->dst); | |
1122 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1123 | dmac_47_16), | |
1124 | key->dst); | |
1125 | ||
1126 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1127 | smac_47_16), | |
1128 | mask->src); | |
1129 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1130 | smac_47_16), | |
1131 | key->src); | |
1132 | } | |
1133 | ||
095b6cfd OG |
1134 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { |
1135 | struct flow_dissector_key_vlan *key = | |
1136 | skb_flow_dissector_target(f->dissector, | |
1137 | FLOW_DISSECTOR_KEY_VLAN, | |
1138 | f->key); | |
1139 | struct flow_dissector_key_vlan *mask = | |
1140 | skb_flow_dissector_target(f->dissector, | |
1141 | FLOW_DISSECTOR_KEY_VLAN, | |
1142 | f->mask); | |
358d79a4 | 1143 | if (mask->vlan_id || mask->vlan_priority) { |
10543365 MHY |
1144 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); |
1145 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); | |
095b6cfd OG |
1146 | |
1147 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); | |
1148 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); | |
358d79a4 OG |
1149 | |
1150 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); | |
1151 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); | |
095b6cfd OG |
1152 | } |
1153 | } | |
1154 | ||
e3a2b7ed AV |
1155 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
1156 | struct flow_dissector_key_ipv4_addrs *key = | |
1157 | skb_flow_dissector_target(f->dissector, | |
1158 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
1159 | f->key); | |
1160 | struct flow_dissector_key_ipv4_addrs *mask = | |
1161 | skb_flow_dissector_target(f->dissector, | |
1162 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
1163 | f->mask); | |
1164 | ||
1165 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1166 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
1167 | &mask->src, sizeof(mask->src)); | |
1168 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1169 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
1170 | &key->src, sizeof(key->src)); | |
1171 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1172 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
1173 | &mask->dst, sizeof(mask->dst)); | |
1174 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1175 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
1176 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
1177 | |
1178 | if (mask->src || mask->dst) | |
1179 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
1180 | } |
1181 | ||
1182 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
1183 | struct flow_dissector_key_ipv6_addrs *key = | |
1184 | skb_flow_dissector_target(f->dissector, | |
1185 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
1186 | f->key); | |
1187 | struct flow_dissector_key_ipv6_addrs *mask = | |
1188 | skb_flow_dissector_target(f->dissector, | |
1189 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
1190 | f->mask); | |
1191 | ||
1192 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1193 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
1194 | &mask->src, sizeof(mask->src)); | |
1195 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1196 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
1197 | &key->src, sizeof(key->src)); | |
1198 | ||
1199 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1200 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
1201 | &mask->dst, sizeof(mask->dst)); | |
1202 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1203 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
1204 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
1205 | |
1206 | if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || | |
1207 | ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) | |
1208 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
1209 | } |
1210 | ||
1f97a526 OG |
1211 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_IP)) { |
1212 | struct flow_dissector_key_ip *key = | |
1213 | skb_flow_dissector_target(f->dissector, | |
1214 | FLOW_DISSECTOR_KEY_IP, | |
1215 | f->key); | |
1216 | struct flow_dissector_key_ip *mask = | |
1217 | skb_flow_dissector_target(f->dissector, | |
1218 | FLOW_DISSECTOR_KEY_IP, | |
1219 | f->mask); | |
1220 | ||
1221 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, mask->tos & 0x3); | |
1222 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, key->tos & 0x3); | |
1223 | ||
1224 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, mask->tos >> 2); | |
1225 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, key->tos >> 2); | |
1226 | ||
a8ade55f OG |
1227 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, mask->ttl); |
1228 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, key->ttl); | |
1f97a526 | 1229 | |
a8ade55f OG |
1230 | if (mask->ttl && |
1231 | !MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, | |
1232 | ft_field_support.outer_ipv4_ttl)) | |
1f97a526 | 1233 | return -EOPNOTSUPP; |
a8ade55f OG |
1234 | |
1235 | if (mask->tos || mask->ttl) | |
1236 | *min_inline = MLX5_INLINE_MODE_IP; | |
1f97a526 OG |
1237 | } |
1238 | ||
e3a2b7ed AV |
1239 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { |
1240 | struct flow_dissector_key_ports *key = | |
1241 | skb_flow_dissector_target(f->dissector, | |
1242 | FLOW_DISSECTOR_KEY_PORTS, | |
1243 | f->key); | |
1244 | struct flow_dissector_key_ports *mask = | |
1245 | skb_flow_dissector_target(f->dissector, | |
1246 | FLOW_DISSECTOR_KEY_PORTS, | |
1247 | f->mask); | |
1248 | switch (ip_proto) { | |
1249 | case IPPROTO_TCP: | |
1250 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1251 | tcp_sport, ntohs(mask->src)); | |
1252 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1253 | tcp_sport, ntohs(key->src)); | |
1254 | ||
1255 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1256 | tcp_dport, ntohs(mask->dst)); | |
1257 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1258 | tcp_dport, ntohs(key->dst)); | |
1259 | break; | |
1260 | ||
1261 | case IPPROTO_UDP: | |
1262 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1263 | udp_sport, ntohs(mask->src)); | |
1264 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1265 | udp_sport, ntohs(key->src)); | |
1266 | ||
1267 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1268 | udp_dport, ntohs(mask->dst)); | |
1269 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1270 | udp_dport, ntohs(key->dst)); | |
1271 | break; | |
1272 | default: | |
1273 | netdev_err(priv->netdev, | |
1274 | "Only UDP and TCP transport are supported\n"); | |
1275 | return -EINVAL; | |
1276 | } | |
de0af0bf RD |
1277 | |
1278 | if (mask->src || mask->dst) | |
1279 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
e3a2b7ed AV |
1280 | } |
1281 | ||
e77834ec OG |
1282 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_TCP)) { |
1283 | struct flow_dissector_key_tcp *key = | |
1284 | skb_flow_dissector_target(f->dissector, | |
1285 | FLOW_DISSECTOR_KEY_TCP, | |
1286 | f->key); | |
1287 | struct flow_dissector_key_tcp *mask = | |
1288 | skb_flow_dissector_target(f->dissector, | |
1289 | FLOW_DISSECTOR_KEY_TCP, | |
1290 | f->mask); | |
1291 | ||
1292 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_flags, | |
1293 | ntohs(mask->flags)); | |
1294 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags, | |
1295 | ntohs(key->flags)); | |
1296 | ||
1297 | if (mask->flags) | |
1298 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
1299 | } | |
1300 | ||
e3a2b7ed AV |
1301 | return 0; |
1302 | } | |
1303 | ||
de0af0bf | 1304 | static int parse_cls_flower(struct mlx5e_priv *priv, |
65ba8fb7 | 1305 | struct mlx5e_tc_flow *flow, |
de0af0bf RD |
1306 | struct mlx5_flow_spec *spec, |
1307 | struct tc_cls_flower_offload *f) | |
1308 | { | |
1309 | struct mlx5_core_dev *dev = priv->mdev; | |
1310 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
1d447a39 SM |
1311 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
1312 | struct mlx5_eswitch_rep *rep; | |
de0af0bf RD |
1313 | u8 min_inline; |
1314 | int err; | |
1315 | ||
1316 | err = __parse_cls_flower(priv, spec, f, &min_inline); | |
1317 | ||
1d447a39 SM |
1318 | if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH)) { |
1319 | rep = rpriv->rep; | |
1320 | if (rep->vport != FDB_UPLINK_VPORT && | |
1321 | (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE && | |
1322 | esw->offloads.inline_mode < min_inline)) { | |
de0af0bf RD |
1323 | netdev_warn(priv->netdev, |
1324 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
1325 | min_inline, esw->offloads.inline_mode); | |
1326 | return -EOPNOTSUPP; | |
1327 | } | |
1328 | } | |
1329 | ||
1330 | return err; | |
1331 | } | |
1332 | ||
d79b6df6 OG |
1333 | struct pedit_headers { |
1334 | struct ethhdr eth; | |
1335 | struct iphdr ip4; | |
1336 | struct ipv6hdr ip6; | |
1337 | struct tcphdr tcp; | |
1338 | struct udphdr udp; | |
1339 | }; | |
1340 | ||
1341 | static int pedit_header_offsets[] = { | |
1342 | [TCA_PEDIT_KEY_EX_HDR_TYPE_ETH] = offsetof(struct pedit_headers, eth), | |
1343 | [TCA_PEDIT_KEY_EX_HDR_TYPE_IP4] = offsetof(struct pedit_headers, ip4), | |
1344 | [TCA_PEDIT_KEY_EX_HDR_TYPE_IP6] = offsetof(struct pedit_headers, ip6), | |
1345 | [TCA_PEDIT_KEY_EX_HDR_TYPE_TCP] = offsetof(struct pedit_headers, tcp), | |
1346 | [TCA_PEDIT_KEY_EX_HDR_TYPE_UDP] = offsetof(struct pedit_headers, udp), | |
1347 | }; | |
1348 | ||
1349 | #define pedit_header(_ph, _htype) ((void *)(_ph) + pedit_header_offsets[_htype]) | |
1350 | ||
1351 | static int set_pedit_val(u8 hdr_type, u32 mask, u32 val, u32 offset, | |
1352 | struct pedit_headers *masks, | |
1353 | struct pedit_headers *vals) | |
1354 | { | |
1355 | u32 *curr_pmask, *curr_pval; | |
1356 | ||
1357 | if (hdr_type >= __PEDIT_HDR_TYPE_MAX) | |
1358 | goto out_err; | |
1359 | ||
1360 | curr_pmask = (u32 *)(pedit_header(masks, hdr_type) + offset); | |
1361 | curr_pval = (u32 *)(pedit_header(vals, hdr_type) + offset); | |
1362 | ||
1363 | if (*curr_pmask & mask) /* disallow acting twice on the same location */ | |
1364 | goto out_err; | |
1365 | ||
1366 | *curr_pmask |= mask; | |
1367 | *curr_pval |= (val & mask); | |
1368 | ||
1369 | return 0; | |
1370 | ||
1371 | out_err: | |
1372 | return -EOPNOTSUPP; | |
1373 | } | |
1374 | ||
1375 | struct mlx5_fields { | |
1376 | u8 field; | |
1377 | u8 size; | |
1378 | u32 offset; | |
1379 | }; | |
1380 | ||
a8e4f0c4 OG |
1381 | #define OFFLOAD(fw_field, size, field, off) \ |
1382 | {MLX5_ACTION_IN_FIELD_OUT_ ## fw_field, size, offsetof(struct pedit_headers, field) + (off)} | |
1383 | ||
d79b6df6 | 1384 | static struct mlx5_fields fields[] = { |
a8e4f0c4 OG |
1385 | OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0), |
1386 | OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0), | |
1387 | OFFLOAD(DMAC_15_0, 2, eth.h_dest[4], 0), | |
1388 | OFFLOAD(SMAC_47_16, 4, eth.h_source[0], 0), | |
1389 | OFFLOAD(SMAC_15_0, 2, eth.h_source[4], 0), | |
1390 | OFFLOAD(ETHERTYPE, 2, eth.h_proto, 0), | |
1391 | ||
1392 | OFFLOAD(IP_TTL, 1, ip4.ttl, 0), | |
1393 | OFFLOAD(SIPV4, 4, ip4.saddr, 0), | |
1394 | OFFLOAD(DIPV4, 4, ip4.daddr, 0), | |
1395 | ||
1396 | OFFLOAD(SIPV6_127_96, 4, ip6.saddr.s6_addr32[0], 0), | |
1397 | OFFLOAD(SIPV6_95_64, 4, ip6.saddr.s6_addr32[1], 0), | |
1398 | OFFLOAD(SIPV6_63_32, 4, ip6.saddr.s6_addr32[2], 0), | |
1399 | OFFLOAD(SIPV6_31_0, 4, ip6.saddr.s6_addr32[3], 0), | |
1400 | OFFLOAD(DIPV6_127_96, 4, ip6.daddr.s6_addr32[0], 0), | |
1401 | OFFLOAD(DIPV6_95_64, 4, ip6.daddr.s6_addr32[1], 0), | |
1402 | OFFLOAD(DIPV6_63_32, 4, ip6.daddr.s6_addr32[2], 0), | |
1403 | OFFLOAD(DIPV6_31_0, 4, ip6.daddr.s6_addr32[3], 0), | |
0c0316f5 | 1404 | OFFLOAD(IPV6_HOPLIMIT, 1, ip6.hop_limit, 0), |
a8e4f0c4 OG |
1405 | |
1406 | OFFLOAD(TCP_SPORT, 2, tcp.source, 0), | |
1407 | OFFLOAD(TCP_DPORT, 2, tcp.dest, 0), | |
1408 | OFFLOAD(TCP_FLAGS, 1, tcp.ack_seq, 5), | |
1409 | ||
1410 | OFFLOAD(UDP_SPORT, 2, udp.source, 0), | |
1411 | OFFLOAD(UDP_DPORT, 2, udp.dest, 0), | |
d79b6df6 OG |
1412 | }; |
1413 | ||
1414 | /* On input attr->num_mod_hdr_actions tells how many HW actions can be parsed at | |
1415 | * max from the SW pedit action. On success, it says how many HW actions were | |
1416 | * actually parsed. | |
1417 | */ | |
1418 | static int offload_pedit_fields(struct pedit_headers *masks, | |
1419 | struct pedit_headers *vals, | |
1420 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1421 | { | |
1422 | struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals; | |
2b64beba | 1423 | int i, action_size, nactions, max_actions, first, last, next_z; |
d79b6df6 | 1424 | void *s_masks_p, *a_masks_p, *vals_p; |
d79b6df6 OG |
1425 | struct mlx5_fields *f; |
1426 | u8 cmd, field_bsize; | |
e3ca4e05 | 1427 | u32 s_mask, a_mask; |
d79b6df6 | 1428 | unsigned long mask; |
2b64beba OG |
1429 | __be32 mask_be32; |
1430 | __be16 mask_be16; | |
d79b6df6 OG |
1431 | void *action; |
1432 | ||
1433 | set_masks = &masks[TCA_PEDIT_KEY_EX_CMD_SET]; | |
1434 | add_masks = &masks[TCA_PEDIT_KEY_EX_CMD_ADD]; | |
1435 | set_vals = &vals[TCA_PEDIT_KEY_EX_CMD_SET]; | |
1436 | add_vals = &vals[TCA_PEDIT_KEY_EX_CMD_ADD]; | |
1437 | ||
1438 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); | |
1439 | action = parse_attr->mod_hdr_actions; | |
1440 | max_actions = parse_attr->num_mod_hdr_actions; | |
1441 | nactions = 0; | |
1442 | ||
1443 | for (i = 0; i < ARRAY_SIZE(fields); i++) { | |
1444 | f = &fields[i]; | |
1445 | /* avoid seeing bits set from previous iterations */ | |
e3ca4e05 OG |
1446 | s_mask = 0; |
1447 | a_mask = 0; | |
d79b6df6 OG |
1448 | |
1449 | s_masks_p = (void *)set_masks + f->offset; | |
1450 | a_masks_p = (void *)add_masks + f->offset; | |
1451 | ||
1452 | memcpy(&s_mask, s_masks_p, f->size); | |
1453 | memcpy(&a_mask, a_masks_p, f->size); | |
1454 | ||
1455 | if (!s_mask && !a_mask) /* nothing to offload here */ | |
1456 | continue; | |
1457 | ||
1458 | if (s_mask && a_mask) { | |
1459 | printk(KERN_WARNING "mlx5: can't set and add to the same HW field (%x)\n", f->field); | |
1460 | return -EOPNOTSUPP; | |
1461 | } | |
1462 | ||
1463 | if (nactions == max_actions) { | |
1464 | printk(KERN_WARNING "mlx5: parsed %d pedit actions, can't do more\n", nactions); | |
1465 | return -EOPNOTSUPP; | |
1466 | } | |
1467 | ||
1468 | if (s_mask) { | |
1469 | cmd = MLX5_ACTION_TYPE_SET; | |
1470 | mask = s_mask; | |
1471 | vals_p = (void *)set_vals + f->offset; | |
1472 | /* clear to denote we consumed this field */ | |
1473 | memset(s_masks_p, 0, f->size); | |
1474 | } else { | |
1475 | cmd = MLX5_ACTION_TYPE_ADD; | |
1476 | mask = a_mask; | |
1477 | vals_p = (void *)add_vals + f->offset; | |
1478 | /* clear to denote we consumed this field */ | |
1479 | memset(a_masks_p, 0, f->size); | |
1480 | } | |
1481 | ||
d79b6df6 | 1482 | field_bsize = f->size * BITS_PER_BYTE; |
e3ca4e05 | 1483 | |
2b64beba OG |
1484 | if (field_bsize == 32) { |
1485 | mask_be32 = *(__be32 *)&mask; | |
1486 | mask = (__force unsigned long)cpu_to_le32(be32_to_cpu(mask_be32)); | |
1487 | } else if (field_bsize == 16) { | |
1488 | mask_be16 = *(__be16 *)&mask; | |
1489 | mask = (__force unsigned long)cpu_to_le16(be16_to_cpu(mask_be16)); | |
1490 | } | |
1491 | ||
d79b6df6 | 1492 | first = find_first_bit(&mask, field_bsize); |
2b64beba | 1493 | next_z = find_next_zero_bit(&mask, field_bsize, first); |
d79b6df6 | 1494 | last = find_last_bit(&mask, field_bsize); |
2b64beba OG |
1495 | if (first < next_z && next_z < last) { |
1496 | printk(KERN_WARNING "mlx5: rewrite of few sub-fields (mask %lx) isn't offloaded\n", | |
d79b6df6 OG |
1497 | mask); |
1498 | return -EOPNOTSUPP; | |
1499 | } | |
1500 | ||
1501 | MLX5_SET(set_action_in, action, action_type, cmd); | |
1502 | MLX5_SET(set_action_in, action, field, f->field); | |
1503 | ||
1504 | if (cmd == MLX5_ACTION_TYPE_SET) { | |
2b64beba | 1505 | MLX5_SET(set_action_in, action, offset, first); |
d79b6df6 | 1506 | /* length is num of bits to be written, zero means length of 32 */ |
2b64beba | 1507 | MLX5_SET(set_action_in, action, length, (last - first + 1)); |
d79b6df6 OG |
1508 | } |
1509 | ||
1510 | if (field_bsize == 32) | |
2b64beba | 1511 | MLX5_SET(set_action_in, action, data, ntohl(*(__be32 *)vals_p) >> first); |
d79b6df6 | 1512 | else if (field_bsize == 16) |
2b64beba | 1513 | MLX5_SET(set_action_in, action, data, ntohs(*(__be16 *)vals_p) >> first); |
d79b6df6 | 1514 | else if (field_bsize == 8) |
2b64beba | 1515 | MLX5_SET(set_action_in, action, data, *(u8 *)vals_p >> first); |
d79b6df6 OG |
1516 | |
1517 | action += action_size; | |
1518 | nactions++; | |
1519 | } | |
1520 | ||
1521 | parse_attr->num_mod_hdr_actions = nactions; | |
1522 | return 0; | |
1523 | } | |
1524 | ||
1525 | static int alloc_mod_hdr_actions(struct mlx5e_priv *priv, | |
1526 | const struct tc_action *a, int namespace, | |
1527 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1528 | { | |
1529 | int nkeys, action_size, max_actions; | |
1530 | ||
1531 | nkeys = tcf_pedit_nkeys(a); | |
1532 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); | |
1533 | ||
1534 | if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */ | |
1535 | max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, max_modify_header_actions); | |
1536 | else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */ | |
1537 | max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, max_modify_header_actions); | |
1538 | ||
1539 | /* can get up to crazingly 16 HW actions in 32 bits pedit SW key */ | |
1540 | max_actions = min(max_actions, nkeys * 16); | |
1541 | ||
1542 | parse_attr->mod_hdr_actions = kcalloc(max_actions, action_size, GFP_KERNEL); | |
1543 | if (!parse_attr->mod_hdr_actions) | |
1544 | return -ENOMEM; | |
1545 | ||
1546 | parse_attr->num_mod_hdr_actions = max_actions; | |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | static const struct pedit_headers zero_masks = {}; | |
1551 | ||
1552 | static int parse_tc_pedit_action(struct mlx5e_priv *priv, | |
1553 | const struct tc_action *a, int namespace, | |
1554 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
1555 | { | |
1556 | struct pedit_headers masks[__PEDIT_CMD_MAX], vals[__PEDIT_CMD_MAX], *cmd_masks; | |
1557 | int nkeys, i, err = -EOPNOTSUPP; | |
1558 | u32 mask, val, offset; | |
1559 | u8 cmd, htype; | |
1560 | ||
1561 | nkeys = tcf_pedit_nkeys(a); | |
1562 | ||
1563 | memset(masks, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); | |
1564 | memset(vals, 0, sizeof(struct pedit_headers) * __PEDIT_CMD_MAX); | |
1565 | ||
1566 | for (i = 0; i < nkeys; i++) { | |
1567 | htype = tcf_pedit_htype(a, i); | |
1568 | cmd = tcf_pedit_cmd(a, i); | |
1569 | err = -EOPNOTSUPP; /* can't be all optimistic */ | |
1570 | ||
1571 | if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK) { | |
1572 | printk(KERN_WARNING "mlx5: legacy pedit isn't offloaded\n"); | |
1573 | goto out_err; | |
1574 | } | |
1575 | ||
1576 | if (cmd != TCA_PEDIT_KEY_EX_CMD_SET && cmd != TCA_PEDIT_KEY_EX_CMD_ADD) { | |
1577 | printk(KERN_WARNING "mlx5: pedit cmd %d isn't offloaded\n", cmd); | |
1578 | goto out_err; | |
1579 | } | |
1580 | ||
1581 | mask = tcf_pedit_mask(a, i); | |
1582 | val = tcf_pedit_val(a, i); | |
1583 | offset = tcf_pedit_offset(a, i); | |
1584 | ||
1585 | err = set_pedit_val(htype, ~mask, val, offset, &masks[cmd], &vals[cmd]); | |
1586 | if (err) | |
1587 | goto out_err; | |
1588 | } | |
1589 | ||
1590 | err = alloc_mod_hdr_actions(priv, a, namespace, parse_attr); | |
1591 | if (err) | |
1592 | goto out_err; | |
1593 | ||
1594 | err = offload_pedit_fields(masks, vals, parse_attr); | |
1595 | if (err < 0) | |
1596 | goto out_dealloc_parsed_actions; | |
1597 | ||
1598 | for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) { | |
1599 | cmd_masks = &masks[cmd]; | |
1600 | if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) { | |
1601 | printk(KERN_WARNING "mlx5: attempt to offload an unsupported field (cmd %d)\n", | |
1602 | cmd); | |
1603 | print_hex_dump(KERN_WARNING, "mask: ", DUMP_PREFIX_ADDRESS, | |
1604 | 16, 1, cmd_masks, sizeof(zero_masks), true); | |
1605 | err = -EOPNOTSUPP; | |
1606 | goto out_dealloc_parsed_actions; | |
1607 | } | |
1608 | } | |
1609 | ||
1610 | return 0; | |
1611 | ||
1612 | out_dealloc_parsed_actions: | |
1613 | kfree(parse_attr->mod_hdr_actions); | |
1614 | out_err: | |
1615 | return err; | |
1616 | } | |
1617 | ||
26c02749 OG |
1618 | static bool csum_offload_supported(struct mlx5e_priv *priv, u32 action, u32 update_flags) |
1619 | { | |
1620 | u32 prot_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR | TCA_CSUM_UPDATE_FLAG_TCP | | |
1621 | TCA_CSUM_UPDATE_FLAG_UDP; | |
1622 | ||
1623 | /* The HW recalcs checksums only if re-writing headers */ | |
1624 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)) { | |
1625 | netdev_warn(priv->netdev, | |
1626 | "TC csum action is only offloaded with pedit\n"); | |
1627 | return false; | |
1628 | } | |
1629 | ||
1630 | if (update_flags & ~prot_flags) { | |
1631 | netdev_warn(priv->netdev, | |
1632 | "can't offload TC csum action for some header/s - flags %#x\n", | |
1633 | update_flags); | |
1634 | return false; | |
1635 | } | |
1636 | ||
1637 | return true; | |
1638 | } | |
1639 | ||
bdd66ac0 OG |
1640 | static bool modify_header_match_supported(struct mlx5_flow_spec *spec, |
1641 | struct tcf_exts *exts) | |
1642 | { | |
1643 | const struct tc_action *a; | |
1644 | bool modify_ip_header; | |
1645 | LIST_HEAD(actions); | |
1646 | u8 htype, ip_proto; | |
1647 | void *headers_v; | |
1648 | u16 ethertype; | |
1649 | int nkeys, i; | |
1650 | ||
1651 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); | |
1652 | ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype); | |
1653 | ||
1654 | /* for non-IP we only re-write MACs, so we're okay */ | |
1655 | if (ethertype != ETH_P_IP && ethertype != ETH_P_IPV6) | |
1656 | goto out_ok; | |
1657 | ||
1658 | modify_ip_header = false; | |
1659 | tcf_exts_to_list(exts, &actions); | |
1660 | list_for_each_entry(a, &actions, list) { | |
1661 | if (!is_tcf_pedit(a)) | |
1662 | continue; | |
1663 | ||
1664 | nkeys = tcf_pedit_nkeys(a); | |
1665 | for (i = 0; i < nkeys; i++) { | |
1666 | htype = tcf_pedit_htype(a, i); | |
1667 | if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 || | |
1668 | htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) { | |
1669 | modify_ip_header = true; | |
1670 | break; | |
1671 | } | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol); | |
1676 | if (modify_ip_header && ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) { | |
1677 | pr_info("can't offload re-write of ip proto %d\n", ip_proto); | |
1678 | return false; | |
1679 | } | |
1680 | ||
1681 | out_ok: | |
1682 | return true; | |
1683 | } | |
1684 | ||
1685 | static bool actions_match_supported(struct mlx5e_priv *priv, | |
1686 | struct tcf_exts *exts, | |
1687 | struct mlx5e_tc_flow_parse_attr *parse_attr, | |
1688 | struct mlx5e_tc_flow *flow) | |
1689 | { | |
1690 | u32 actions; | |
1691 | ||
1692 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
1693 | actions = flow->esw_attr->action; | |
1694 | else | |
1695 | actions = flow->nic_attr->action; | |
1696 | ||
1697 | if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) | |
1698 | return modify_header_match_supported(&parse_attr->spec, exts); | |
1699 | ||
1700 | return true; | |
1701 | } | |
1702 | ||
5c65c564 OG |
1703 | static bool same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv) |
1704 | { | |
1705 | struct mlx5_core_dev *fmdev, *pmdev; | |
1706 | u16 func_id, peer_id; | |
1707 | ||
1708 | fmdev = priv->mdev; | |
1709 | pmdev = peer_priv->mdev; | |
1710 | ||
1711 | func_id = (u16)((fmdev->pdev->bus->number << 8) | PCI_SLOT(fmdev->pdev->devfn)); | |
1712 | peer_id = (u16)((pmdev->pdev->bus->number << 8) | PCI_SLOT(pmdev->pdev->devfn)); | |
1713 | ||
1714 | return (func_id == peer_id); | |
1715 | } | |
1716 | ||
5c40348c | 1717 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
aa0cbbae OG |
1718 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
1719 | struct mlx5e_tc_flow *flow) | |
e3a2b7ed | 1720 | { |
aa0cbbae | 1721 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
e3a2b7ed | 1722 | const struct tc_action *a; |
22dc13c8 | 1723 | LIST_HEAD(actions); |
2f4fe4ca | 1724 | int err; |
e3a2b7ed | 1725 | |
3bcc0cec | 1726 | if (!tcf_exts_has_actions(exts)) |
e3a2b7ed AV |
1727 | return -EINVAL; |
1728 | ||
3bc4b7bf OG |
1729 | attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; |
1730 | attr->action = 0; | |
e3a2b7ed | 1731 | |
22dc13c8 WC |
1732 | tcf_exts_to_list(exts, &actions); |
1733 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed | 1734 | if (is_tcf_gact_shot(a)) { |
3bc4b7bf | 1735 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP; |
aad7e08d AV |
1736 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
1737 | flow_table_properties_nic_receive.flow_counter)) | |
3bc4b7bf | 1738 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; |
e3a2b7ed AV |
1739 | continue; |
1740 | } | |
1741 | ||
2f4fe4ca OG |
1742 | if (is_tcf_pedit(a)) { |
1743 | err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL, | |
1744 | parse_attr); | |
1745 | if (err) | |
1746 | return err; | |
1747 | ||
1748 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | | |
1749 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
1750 | continue; | |
1751 | } | |
1752 | ||
26c02749 OG |
1753 | if (is_tcf_csum(a)) { |
1754 | if (csum_offload_supported(priv, attr->action, | |
1755 | tcf_csum_update_flags(a))) | |
1756 | continue; | |
1757 | ||
1758 | return -EOPNOTSUPP; | |
1759 | } | |
1760 | ||
5c65c564 OG |
1761 | if (is_tcf_mirred_egress_redirect(a)) { |
1762 | struct net_device *peer_dev = tcf_mirred_dev(a); | |
1763 | ||
1764 | if (priv->netdev->netdev_ops == peer_dev->netdev_ops && | |
1765 | same_hw_devs(priv, netdev_priv(peer_dev))) { | |
1766 | parse_attr->mirred_ifindex = peer_dev->ifindex; | |
1767 | flow->flags |= MLX5E_TC_FLOW_HAIRPIN; | |
1768 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1769 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1770 | } else { | |
1771 | netdev_warn(priv->netdev, "device %s not on same HW, can't offload\n", | |
1772 | peer_dev->name); | |
1773 | return -EINVAL; | |
1774 | } | |
1775 | continue; | |
1776 | } | |
1777 | ||
e3a2b7ed AV |
1778 | if (is_tcf_skbedit_mark(a)) { |
1779 | u32 mark = tcf_skbedit_mark(a); | |
1780 | ||
1781 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
1782 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
1783 | mark); | |
1784 | return -EINVAL; | |
1785 | } | |
1786 | ||
3bc4b7bf OG |
1787 | attr->flow_tag = mark; |
1788 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
e3a2b7ed AV |
1789 | continue; |
1790 | } | |
1791 | ||
1792 | return -EINVAL; | |
1793 | } | |
1794 | ||
bdd66ac0 OG |
1795 | if (!actions_match_supported(priv, exts, parse_attr, flow)) |
1796 | return -EOPNOTSUPP; | |
1797 | ||
e3a2b7ed AV |
1798 | return 0; |
1799 | } | |
1800 | ||
76f7444d OG |
1801 | static inline int cmp_encap_info(struct ip_tunnel_key *a, |
1802 | struct ip_tunnel_key *b) | |
a54e20b4 HHZ |
1803 | { |
1804 | return memcmp(a, b, sizeof(*a)); | |
1805 | } | |
1806 | ||
76f7444d | 1807 | static inline int hash_encap_info(struct ip_tunnel_key *key) |
a54e20b4 | 1808 | { |
76f7444d | 1809 | return jhash(key, sizeof(*key), 0); |
a54e20b4 HHZ |
1810 | } |
1811 | ||
1812 | static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, | |
1813 | struct net_device *mirred_dev, | |
1814 | struct net_device **out_dev, | |
1815 | struct flowi4 *fl4, | |
1816 | struct neighbour **out_n, | |
a54e20b4 HHZ |
1817 | int *out_ttl) |
1818 | { | |
3e621b19 | 1819 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
5ed99fb4 | 1820 | struct mlx5e_rep_priv *uplink_rpriv; |
a54e20b4 HHZ |
1821 | struct rtable *rt; |
1822 | struct neighbour *n = NULL; | |
a54e20b4 HHZ |
1823 | |
1824 | #if IS_ENABLED(CONFIG_INET) | |
abeffce9 AB |
1825 | int ret; |
1826 | ||
a54e20b4 | 1827 | rt = ip_route_output_key(dev_net(mirred_dev), fl4); |
abeffce9 AB |
1828 | ret = PTR_ERR_OR_ZERO(rt); |
1829 | if (ret) | |
1830 | return ret; | |
a54e20b4 HHZ |
1831 | #else |
1832 | return -EOPNOTSUPP; | |
1833 | #endif | |
a4b97ab4 | 1834 | uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); |
3e621b19 HHZ |
1835 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ |
1836 | if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) | |
5ed99fb4 | 1837 | *out_dev = uplink_rpriv->netdev; |
3e621b19 HHZ |
1838 | else |
1839 | *out_dev = rt->dst.dev; | |
a54e20b4 | 1840 | |
75c33da8 | 1841 | *out_ttl = ip4_dst_hoplimit(&rt->dst); |
a54e20b4 HHZ |
1842 | n = dst_neigh_lookup(&rt->dst, &fl4->daddr); |
1843 | ip_rt_put(rt); | |
1844 | if (!n) | |
1845 | return -ENOMEM; | |
1846 | ||
1847 | *out_n = n; | |
a54e20b4 HHZ |
1848 | return 0; |
1849 | } | |
1850 | ||
ce99f6b9 OG |
1851 | static int mlx5e_route_lookup_ipv6(struct mlx5e_priv *priv, |
1852 | struct net_device *mirred_dev, | |
1853 | struct net_device **out_dev, | |
1854 | struct flowi6 *fl6, | |
1855 | struct neighbour **out_n, | |
1856 | int *out_ttl) | |
1857 | { | |
1858 | struct neighbour *n = NULL; | |
1859 | struct dst_entry *dst; | |
1860 | ||
1861 | #if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6) | |
74bd5d56 | 1862 | struct mlx5e_rep_priv *uplink_rpriv; |
ce99f6b9 OG |
1863 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
1864 | int ret; | |
1865 | ||
08820528 PB |
1866 | ret = ipv6_stub->ipv6_dst_lookup(dev_net(mirred_dev), NULL, &dst, |
1867 | fl6); | |
1868 | if (ret < 0) | |
ce99f6b9 | 1869 | return ret; |
ce99f6b9 OG |
1870 | |
1871 | *out_ttl = ip6_dst_hoplimit(dst); | |
1872 | ||
a4b97ab4 | 1873 | uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); |
ce99f6b9 OG |
1874 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ |
1875 | if (!switchdev_port_same_parent_id(priv->netdev, dst->dev)) | |
5ed99fb4 | 1876 | *out_dev = uplink_rpriv->netdev; |
ce99f6b9 OG |
1877 | else |
1878 | *out_dev = dst->dev; | |
1879 | #else | |
1880 | return -EOPNOTSUPP; | |
1881 | #endif | |
1882 | ||
1883 | n = dst_neigh_lookup(dst, &fl6->daddr); | |
1884 | dst_release(dst); | |
1885 | if (!n) | |
1886 | return -ENOMEM; | |
1887 | ||
1888 | *out_n = n; | |
1889 | return 0; | |
1890 | } | |
1891 | ||
32f3671f OG |
1892 | static void gen_vxlan_header_ipv4(struct net_device *out_dev, |
1893 | char buf[], int encap_size, | |
1894 | unsigned char h_dest[ETH_ALEN], | |
1895 | int ttl, | |
1896 | __be32 daddr, | |
1897 | __be32 saddr, | |
1898 | __be16 udp_dst_port, | |
1899 | __be32 vx_vni) | |
a54e20b4 | 1900 | { |
a54e20b4 HHZ |
1901 | struct ethhdr *eth = (struct ethhdr *)buf; |
1902 | struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr)); | |
1903 | struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr)); | |
1904 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
1905 | ||
1906 | memset(buf, 0, encap_size); | |
1907 | ||
1908 | ether_addr_copy(eth->h_dest, h_dest); | |
1909 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
1910 | eth->h_proto = htons(ETH_P_IP); | |
1911 | ||
1912 | ip->daddr = daddr; | |
1913 | ip->saddr = saddr; | |
1914 | ||
1915 | ip->ttl = ttl; | |
1916 | ip->protocol = IPPROTO_UDP; | |
1917 | ip->version = 0x4; | |
1918 | ip->ihl = 0x5; | |
1919 | ||
1920 | udp->dest = udp_dst_port; | |
1921 | vxh->vx_flags = VXLAN_HF_VNI; | |
1922 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
a54e20b4 HHZ |
1923 | } |
1924 | ||
225aabaf OG |
1925 | static void gen_vxlan_header_ipv6(struct net_device *out_dev, |
1926 | char buf[], int encap_size, | |
1927 | unsigned char h_dest[ETH_ALEN], | |
1928 | int ttl, | |
1929 | struct in6_addr *daddr, | |
1930 | struct in6_addr *saddr, | |
1931 | __be16 udp_dst_port, | |
1932 | __be32 vx_vni) | |
ce99f6b9 | 1933 | { |
ce99f6b9 OG |
1934 | struct ethhdr *eth = (struct ethhdr *)buf; |
1935 | struct ipv6hdr *ip6h = (struct ipv6hdr *)((char *)eth + sizeof(struct ethhdr)); | |
1936 | struct udphdr *udp = (struct udphdr *)((char *)ip6h + sizeof(struct ipv6hdr)); | |
1937 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
1938 | ||
1939 | memset(buf, 0, encap_size); | |
1940 | ||
1941 | ether_addr_copy(eth->h_dest, h_dest); | |
1942 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
1943 | eth->h_proto = htons(ETH_P_IPV6); | |
1944 | ||
1945 | ip6_flow_hdr(ip6h, 0, 0); | |
1946 | /* the HW fills up ipv6 payload len */ | |
1947 | ip6h->nexthdr = IPPROTO_UDP; | |
1948 | ip6h->hop_limit = ttl; | |
1949 | ip6h->daddr = *daddr; | |
1950 | ip6h->saddr = *saddr; | |
1951 | ||
1952 | udp->dest = udp_dst_port; | |
1953 | vxh->vx_flags = VXLAN_HF_VNI; | |
1954 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
ce99f6b9 OG |
1955 | } |
1956 | ||
a54e20b4 HHZ |
1957 | static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, |
1958 | struct net_device *mirred_dev, | |
1a8552bd | 1959 | struct mlx5e_encap_entry *e) |
a54e20b4 HHZ |
1960 | { |
1961 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
32f3671f | 1962 | int ipv4_encap_size = ETH_HLEN + sizeof(struct iphdr) + VXLAN_HLEN; |
76f7444d | 1963 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
1a8552bd | 1964 | struct net_device *out_dev; |
a42485eb | 1965 | struct neighbour *n = NULL; |
a54e20b4 | 1966 | struct flowi4 fl4 = {}; |
a54e20b4 | 1967 | char *encap_header; |
32f3671f | 1968 | int ttl, err; |
033354d5 | 1969 | u8 nud_state; |
32f3671f OG |
1970 | |
1971 | if (max_encap_size < ipv4_encap_size) { | |
1972 | mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", | |
1973 | ipv4_encap_size, max_encap_size); | |
1974 | return -EOPNOTSUPP; | |
1975 | } | |
a54e20b4 | 1976 | |
32f3671f | 1977 | encap_header = kzalloc(ipv4_encap_size, GFP_KERNEL); |
a54e20b4 HHZ |
1978 | if (!encap_header) |
1979 | return -ENOMEM; | |
1980 | ||
1981 | switch (e->tunnel_type) { | |
1982 | case MLX5_HEADER_TYPE_VXLAN: | |
1983 | fl4.flowi4_proto = IPPROTO_UDP; | |
76f7444d | 1984 | fl4.fl4_dport = tun_key->tp_dst; |
a54e20b4 HHZ |
1985 | break; |
1986 | default: | |
1987 | err = -EOPNOTSUPP; | |
ace74321 | 1988 | goto free_encap; |
a54e20b4 | 1989 | } |
9a941117 | 1990 | fl4.flowi4_tos = tun_key->tos; |
76f7444d | 1991 | fl4.daddr = tun_key->u.ipv4.dst; |
9a941117 | 1992 | fl4.saddr = tun_key->u.ipv4.src; |
a54e20b4 | 1993 | |
1a8552bd | 1994 | err = mlx5e_route_lookup_ipv4(priv, mirred_dev, &out_dev, |
9a941117 | 1995 | &fl4, &n, &ttl); |
a54e20b4 | 1996 | if (err) |
ace74321 | 1997 | goto free_encap; |
a54e20b4 | 1998 | |
232c0013 HHZ |
1999 | /* used by mlx5e_detach_encap to lookup a neigh hash table |
2000 | * entry in the neigh hash table when a user deletes a rule | |
2001 | */ | |
2002 | e->m_neigh.dev = n->dev; | |
f6dfb4c3 | 2003 | e->m_neigh.family = n->ops->family; |
232c0013 HHZ |
2004 | memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len); |
2005 | e->out_dev = out_dev; | |
2006 | ||
2007 | /* It's importent to add the neigh to the hash table before checking | |
2008 | * the neigh validity state. So if we'll get a notification, in case the | |
2009 | * neigh changes it's validity state, we would find the relevant neigh | |
2010 | * in the hash. | |
2011 | */ | |
2012 | err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e); | |
2013 | if (err) | |
ace74321 | 2014 | goto free_encap; |
232c0013 | 2015 | |
033354d5 HHZ |
2016 | read_lock_bh(&n->lock); |
2017 | nud_state = n->nud_state; | |
2018 | ether_addr_copy(e->h_dest, n->ha); | |
2019 | read_unlock_bh(&n->lock); | |
2020 | ||
a54e20b4 HHZ |
2021 | switch (e->tunnel_type) { |
2022 | case MLX5_HEADER_TYPE_VXLAN: | |
1a8552bd | 2023 | gen_vxlan_header_ipv4(out_dev, encap_header, |
32f3671f OG |
2024 | ipv4_encap_size, e->h_dest, ttl, |
2025 | fl4.daddr, | |
2026 | fl4.saddr, tun_key->tp_dst, | |
2027 | tunnel_id_to_key32(tun_key->tun_id)); | |
a54e20b4 HHZ |
2028 | break; |
2029 | default: | |
2030 | err = -EOPNOTSUPP; | |
232c0013 HHZ |
2031 | goto destroy_neigh_entry; |
2032 | } | |
2033 | e->encap_size = ipv4_encap_size; | |
2034 | e->encap_header = encap_header; | |
2035 | ||
2036 | if (!(nud_state & NUD_VALID)) { | |
2037 | neigh_event_send(n, NULL); | |
27902f08 WY |
2038 | err = -EAGAIN; |
2039 | goto out; | |
a54e20b4 HHZ |
2040 | } |
2041 | ||
2042 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
32f3671f | 2043 | ipv4_encap_size, encap_header, &e->encap_id); |
232c0013 HHZ |
2044 | if (err) |
2045 | goto destroy_neigh_entry; | |
2046 | ||
2047 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 2048 | mlx5e_rep_queue_neigh_stats_work(netdev_priv(out_dev)); |
232c0013 HHZ |
2049 | neigh_release(n); |
2050 | return err; | |
2051 | ||
2052 | destroy_neigh_entry: | |
2053 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); | |
ace74321 | 2054 | free_encap: |
a54e20b4 | 2055 | kfree(encap_header); |
ace74321 | 2056 | out: |
232c0013 HHZ |
2057 | if (n) |
2058 | neigh_release(n); | |
a54e20b4 HHZ |
2059 | return err; |
2060 | } | |
2061 | ||
ce99f6b9 OG |
2062 | static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, |
2063 | struct net_device *mirred_dev, | |
1a8552bd | 2064 | struct mlx5e_encap_entry *e) |
ce99f6b9 OG |
2065 | { |
2066 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
225aabaf | 2067 | int ipv6_encap_size = ETH_HLEN + sizeof(struct ipv6hdr) + VXLAN_HLEN; |
ce99f6b9 | 2068 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
1a8552bd | 2069 | struct net_device *out_dev; |
ce99f6b9 OG |
2070 | struct neighbour *n = NULL; |
2071 | struct flowi6 fl6 = {}; | |
2072 | char *encap_header; | |
225aabaf | 2073 | int err, ttl = 0; |
033354d5 | 2074 | u8 nud_state; |
ce99f6b9 | 2075 | |
225aabaf OG |
2076 | if (max_encap_size < ipv6_encap_size) { |
2077 | mlx5_core_warn(priv->mdev, "encap size %d too big, max supported is %d\n", | |
2078 | ipv6_encap_size, max_encap_size); | |
2079 | return -EOPNOTSUPP; | |
2080 | } | |
ce99f6b9 | 2081 | |
225aabaf | 2082 | encap_header = kzalloc(ipv6_encap_size, GFP_KERNEL); |
ce99f6b9 OG |
2083 | if (!encap_header) |
2084 | return -ENOMEM; | |
2085 | ||
2086 | switch (e->tunnel_type) { | |
2087 | case MLX5_HEADER_TYPE_VXLAN: | |
2088 | fl6.flowi6_proto = IPPROTO_UDP; | |
2089 | fl6.fl6_dport = tun_key->tp_dst; | |
2090 | break; | |
2091 | default: | |
2092 | err = -EOPNOTSUPP; | |
ace74321 | 2093 | goto free_encap; |
ce99f6b9 OG |
2094 | } |
2095 | ||
2096 | fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label); | |
2097 | fl6.daddr = tun_key->u.ipv6.dst; | |
2098 | fl6.saddr = tun_key->u.ipv6.src; | |
2099 | ||
1a8552bd | 2100 | err = mlx5e_route_lookup_ipv6(priv, mirred_dev, &out_dev, |
ce99f6b9 OG |
2101 | &fl6, &n, &ttl); |
2102 | if (err) | |
ace74321 | 2103 | goto free_encap; |
ce99f6b9 | 2104 | |
232c0013 HHZ |
2105 | /* used by mlx5e_detach_encap to lookup a neigh hash table |
2106 | * entry in the neigh hash table when a user deletes a rule | |
2107 | */ | |
2108 | e->m_neigh.dev = n->dev; | |
f6dfb4c3 | 2109 | e->m_neigh.family = n->ops->family; |
232c0013 HHZ |
2110 | memcpy(&e->m_neigh.dst_ip, n->primary_key, n->tbl->key_len); |
2111 | e->out_dev = out_dev; | |
2112 | ||
2113 | /* It's importent to add the neigh to the hash table before checking | |
2114 | * the neigh validity state. So if we'll get a notification, in case the | |
2115 | * neigh changes it's validity state, we would find the relevant neigh | |
2116 | * in the hash. | |
2117 | */ | |
2118 | err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e); | |
2119 | if (err) | |
ace74321 | 2120 | goto free_encap; |
232c0013 | 2121 | |
033354d5 HHZ |
2122 | read_lock_bh(&n->lock); |
2123 | nud_state = n->nud_state; | |
2124 | ether_addr_copy(e->h_dest, n->ha); | |
2125 | read_unlock_bh(&n->lock); | |
2126 | ||
ce99f6b9 OG |
2127 | switch (e->tunnel_type) { |
2128 | case MLX5_HEADER_TYPE_VXLAN: | |
1a8552bd | 2129 | gen_vxlan_header_ipv6(out_dev, encap_header, |
225aabaf OG |
2130 | ipv6_encap_size, e->h_dest, ttl, |
2131 | &fl6.daddr, | |
2132 | &fl6.saddr, tun_key->tp_dst, | |
2133 | tunnel_id_to_key32(tun_key->tun_id)); | |
ce99f6b9 OG |
2134 | break; |
2135 | default: | |
2136 | err = -EOPNOTSUPP; | |
232c0013 HHZ |
2137 | goto destroy_neigh_entry; |
2138 | } | |
2139 | ||
2140 | e->encap_size = ipv6_encap_size; | |
2141 | e->encap_header = encap_header; | |
2142 | ||
2143 | if (!(nud_state & NUD_VALID)) { | |
2144 | neigh_event_send(n, NULL); | |
27902f08 WY |
2145 | err = -EAGAIN; |
2146 | goto out; | |
ce99f6b9 OG |
2147 | } |
2148 | ||
2149 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
225aabaf | 2150 | ipv6_encap_size, encap_header, &e->encap_id); |
232c0013 HHZ |
2151 | if (err) |
2152 | goto destroy_neigh_entry; | |
2153 | ||
2154 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 2155 | mlx5e_rep_queue_neigh_stats_work(netdev_priv(out_dev)); |
232c0013 HHZ |
2156 | neigh_release(n); |
2157 | return err; | |
2158 | ||
2159 | destroy_neigh_entry: | |
2160 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); | |
ace74321 | 2161 | free_encap: |
ce99f6b9 | 2162 | kfree(encap_header); |
ace74321 | 2163 | out: |
232c0013 HHZ |
2164 | if (n) |
2165 | neigh_release(n); | |
ce99f6b9 OG |
2166 | return err; |
2167 | } | |
2168 | ||
a54e20b4 HHZ |
2169 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
2170 | struct ip_tunnel_info *tun_info, | |
2171 | struct net_device *mirred_dev, | |
45247bf2 OG |
2172 | struct net_device **encap_dev, |
2173 | struct mlx5e_tc_flow *flow) | |
a54e20b4 HHZ |
2174 | { |
2175 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
a4b97ab4 MB |
2176 | struct mlx5e_rep_priv *uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, |
2177 | REP_ETH); | |
5ed99fb4 | 2178 | struct net_device *up_dev = uplink_rpriv->netdev; |
a54e20b4 | 2179 | unsigned short family = ip_tunnel_info_af(tun_info); |
45247bf2 OG |
2180 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); |
2181 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; | |
a54e20b4 | 2182 | struct ip_tunnel_key *key = &tun_info->key; |
c1ae1152 | 2183 | struct mlx5e_encap_entry *e; |
45247bf2 | 2184 | int tunnel_type, err = 0; |
a54e20b4 HHZ |
2185 | uintptr_t hash_key; |
2186 | bool found = false; | |
a54e20b4 | 2187 | |
2fcd82e9 | 2188 | /* udp dst port must be set */ |
a54e20b4 | 2189 | if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst))) |
2fcd82e9 | 2190 | goto vxlan_encap_offload_err; |
a54e20b4 | 2191 | |
cd377663 | 2192 | /* setting udp src port isn't supported */ |
2fcd82e9 OG |
2193 | if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) { |
2194 | vxlan_encap_offload_err: | |
2195 | netdev_warn(priv->netdev, | |
2196 | "must set udp dst port and not set udp src port\n"); | |
cd377663 | 2197 | return -EOPNOTSUPP; |
2fcd82e9 | 2198 | } |
cd377663 | 2199 | |
1ad9a00a | 2200 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->tp_dst)) && |
a54e20b4 | 2201 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) { |
a54e20b4 HHZ |
2202 | tunnel_type = MLX5_HEADER_TYPE_VXLAN; |
2203 | } else { | |
2fcd82e9 OG |
2204 | netdev_warn(priv->netdev, |
2205 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst)); | |
a54e20b4 HHZ |
2206 | return -EOPNOTSUPP; |
2207 | } | |
2208 | ||
76f7444d | 2209 | hash_key = hash_encap_info(key); |
a54e20b4 HHZ |
2210 | |
2211 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
2212 | encap_hlist, hash_key) { | |
76f7444d | 2213 | if (!cmp_encap_info(&e->tun_info.key, key)) { |
a54e20b4 HHZ |
2214 | found = true; |
2215 | break; | |
2216 | } | |
2217 | } | |
2218 | ||
b2812089 | 2219 | /* must verify if encap is valid or not */ |
45247bf2 OG |
2220 | if (found) |
2221 | goto attach_flow; | |
a54e20b4 HHZ |
2222 | |
2223 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
2224 | if (!e) | |
2225 | return -ENOMEM; | |
2226 | ||
76f7444d | 2227 | e->tun_info = *tun_info; |
a54e20b4 HHZ |
2228 | e->tunnel_type = tunnel_type; |
2229 | INIT_LIST_HEAD(&e->flows); | |
2230 | ||
ce99f6b9 | 2231 | if (family == AF_INET) |
1a8552bd | 2232 | err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e); |
ce99f6b9 | 2233 | else if (family == AF_INET6) |
1a8552bd | 2234 | err = mlx5e_create_encap_header_ipv6(priv, mirred_dev, e); |
ce99f6b9 | 2235 | |
232c0013 | 2236 | if (err && err != -EAGAIN) |
a54e20b4 HHZ |
2237 | goto out_err; |
2238 | ||
a54e20b4 HHZ |
2239 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); |
2240 | ||
45247bf2 OG |
2241 | attach_flow: |
2242 | list_add(&flow->encap, &e->flows); | |
2243 | *encap_dev = e->out_dev; | |
232c0013 HHZ |
2244 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) |
2245 | attr->encap_id = e->encap_id; | |
b2812089 VB |
2246 | else |
2247 | err = -EAGAIN; | |
45247bf2 | 2248 | |
232c0013 | 2249 | return err; |
a54e20b4 HHZ |
2250 | |
2251 | out_err: | |
2252 | kfree(e); | |
2253 | return err; | |
2254 | } | |
2255 | ||
03a9d11e | 2256 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
d7e75a32 | 2257 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
a54e20b4 | 2258 | struct mlx5e_tc_flow *flow) |
03a9d11e | 2259 | { |
ecf5bb79 | 2260 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
1d447a39 | 2261 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
a54e20b4 | 2262 | struct ip_tunnel_info *info = NULL; |
03a9d11e | 2263 | const struct tc_action *a; |
22dc13c8 | 2264 | LIST_HEAD(actions); |
a54e20b4 | 2265 | bool encap = false; |
232c0013 | 2266 | int err = 0; |
03a9d11e | 2267 | |
3bcc0cec | 2268 | if (!tcf_exts_has_actions(exts)) |
03a9d11e OG |
2269 | return -EINVAL; |
2270 | ||
776b12b6 | 2271 | memset(attr, 0, sizeof(*attr)); |
1d447a39 | 2272 | attr->in_rep = rpriv->rep; |
03a9d11e | 2273 | |
22dc13c8 WC |
2274 | tcf_exts_to_list(exts, &actions); |
2275 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 2276 | if (is_tcf_gact_shot(a)) { |
8b32580d OG |
2277 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
2278 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
2279 | continue; |
2280 | } | |
2281 | ||
d7e75a32 OG |
2282 | if (is_tcf_pedit(a)) { |
2283 | err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB, | |
2284 | parse_attr); | |
2285 | if (err) | |
2286 | return err; | |
2287 | ||
2288 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; | |
2289 | continue; | |
2290 | } | |
2291 | ||
26c02749 OG |
2292 | if (is_tcf_csum(a)) { |
2293 | if (csum_offload_supported(priv, attr->action, | |
2294 | tcf_csum_update_flags(a))) | |
2295 | continue; | |
2296 | ||
2297 | return -EOPNOTSUPP; | |
2298 | } | |
2299 | ||
5724b8b5 | 2300 | if (is_tcf_mirred_egress_redirect(a)) { |
3c37745e | 2301 | struct net_device *out_dev; |
03a9d11e | 2302 | struct mlx5e_priv *out_priv; |
03a9d11e | 2303 | |
9f8a739e | 2304 | out_dev = tcf_mirred_dev(a); |
03a9d11e | 2305 | |
a54e20b4 HHZ |
2306 | if (switchdev_port_same_parent_id(priv->netdev, |
2307 | out_dev)) { | |
2308 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
2309 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
2310 | out_priv = netdev_priv(out_dev); | |
1d447a39 SM |
2311 | rpriv = out_priv->ppriv; |
2312 | attr->out_rep = rpriv->rep; | |
a54e20b4 | 2313 | } else if (encap) { |
9f8a739e | 2314 | parse_attr->mirred_ifindex = out_dev->ifindex; |
3c37745e OG |
2315 | parse_attr->tun_info = *info; |
2316 | attr->parse_attr = parse_attr; | |
a54e20b4 HHZ |
2317 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | |
2318 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
2319 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
3c37745e | 2320 | /* attr->out_rep is resolved when we handle encap */ |
a54e20b4 | 2321 | } else { |
03a9d11e OG |
2322 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
2323 | priv->netdev->name, out_dev->name); | |
2324 | return -EINVAL; | |
2325 | } | |
a54e20b4 HHZ |
2326 | continue; |
2327 | } | |
03a9d11e | 2328 | |
a54e20b4 HHZ |
2329 | if (is_tcf_tunnel_set(a)) { |
2330 | info = tcf_tunnel_info(a); | |
2331 | if (info) | |
2332 | encap = true; | |
2333 | else | |
2334 | return -EOPNOTSUPP; | |
03a9d11e OG |
2335 | continue; |
2336 | } | |
2337 | ||
8b32580d | 2338 | if (is_tcf_vlan(a)) { |
09c91ddf | 2339 | if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) { |
8b32580d | 2340 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; |
09c91ddf | 2341 | } else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) { |
8b32580d OG |
2342 | if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q)) |
2343 | return -EOPNOTSUPP; | |
2344 | ||
2345 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
2346 | attr->vlan = tcf_vlan_push_vid(a); | |
09c91ddf OG |
2347 | } else { /* action is TCA_VLAN_ACT_MODIFY */ |
2348 | return -EOPNOTSUPP; | |
8b32580d OG |
2349 | } |
2350 | continue; | |
2351 | } | |
2352 | ||
bbd00f7e HHZ |
2353 | if (is_tcf_tunnel_release(a)) { |
2354 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; | |
2355 | continue; | |
2356 | } | |
2357 | ||
03a9d11e OG |
2358 | return -EINVAL; |
2359 | } | |
bdd66ac0 OG |
2360 | |
2361 | if (!actions_match_supported(priv, exts, parse_attr, flow)) | |
2362 | return -EOPNOTSUPP; | |
2363 | ||
232c0013 | 2364 | return err; |
03a9d11e OG |
2365 | } |
2366 | ||
5fd9fc4e | 2367 | int mlx5e_configure_flower(struct mlx5e_priv *priv, |
e3a2b7ed AV |
2368 | struct tc_cls_flower_offload *f) |
2369 | { | |
3bc4b7bf | 2370 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
17091853 | 2371 | struct mlx5e_tc_flow_parse_attr *parse_attr; |
acff797c | 2372 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
3bc4b7bf OG |
2373 | struct mlx5e_tc_flow *flow; |
2374 | int attr_size, err = 0; | |
65ba8fb7 | 2375 | u8 flow_flags = 0; |
e3a2b7ed | 2376 | |
65ba8fb7 OG |
2377 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
2378 | flow_flags = MLX5E_TC_FLOW_ESWITCH; | |
2379 | attr_size = sizeof(struct mlx5_esw_flow_attr); | |
3bc4b7bf OG |
2380 | } else { |
2381 | flow_flags = MLX5E_TC_FLOW_NIC; | |
2382 | attr_size = sizeof(struct mlx5_nic_flow_attr); | |
65ba8fb7 | 2383 | } |
e3a2b7ed | 2384 | |
65ba8fb7 | 2385 | flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); |
1b9a07ee | 2386 | parse_attr = kvzalloc(sizeof(*parse_attr), GFP_KERNEL); |
17091853 | 2387 | if (!parse_attr || !flow) { |
e3a2b7ed AV |
2388 | err = -ENOMEM; |
2389 | goto err_free; | |
2390 | } | |
2391 | ||
2392 | flow->cookie = f->cookie; | |
65ba8fb7 | 2393 | flow->flags = flow_flags; |
e3a2b7ed | 2394 | |
17091853 | 2395 | err = parse_cls_flower(priv, flow, &parse_attr->spec, f); |
e3a2b7ed AV |
2396 | if (err < 0) |
2397 | goto err_free; | |
2398 | ||
65ba8fb7 | 2399 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
d7e75a32 | 2400 | err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow); |
adb4c123 | 2401 | if (err < 0) |
3c37745e | 2402 | goto err_free; |
aa0cbbae | 2403 | flow->rule = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow); |
adb4c123 | 2404 | } else { |
aa0cbbae | 2405 | err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow); |
adb4c123 OG |
2406 | if (err < 0) |
2407 | goto err_free; | |
aa0cbbae | 2408 | flow->rule = mlx5e_tc_add_nic_flow(priv, parse_attr, flow); |
adb4c123 | 2409 | } |
e3a2b7ed | 2410 | |
e3a2b7ed AV |
2411 | if (IS_ERR(flow->rule)) { |
2412 | err = PTR_ERR(flow->rule); | |
3c37745e OG |
2413 | if (err != -EAGAIN) |
2414 | goto err_free; | |
e3a2b7ed AV |
2415 | } |
2416 | ||
3c37745e OG |
2417 | if (err != -EAGAIN) |
2418 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; | |
2419 | ||
5c40348c OG |
2420 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
2421 | tc->ht_params); | |
2422 | if (err) | |
2423 | goto err_del_rule; | |
2424 | ||
232c0013 HHZ |
2425 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH && |
2426 | !(flow->esw_attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP)) | |
2427 | kvfree(parse_attr); | |
2428 | return err; | |
e3a2b7ed | 2429 | |
5c40348c | 2430 | err_del_rule: |
5e86397a | 2431 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
2432 | |
2433 | err_free: | |
17091853 | 2434 | kvfree(parse_attr); |
232c0013 | 2435 | kfree(flow); |
e3a2b7ed AV |
2436 | return err; |
2437 | } | |
2438 | ||
2439 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
2440 | struct tc_cls_flower_offload *f) | |
2441 | { | |
2442 | struct mlx5e_tc_flow *flow; | |
acff797c | 2443 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
2444 | |
2445 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
2446 | tc->ht_params); | |
2447 | if (!flow) | |
2448 | return -EINVAL; | |
2449 | ||
2450 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
2451 | ||
961e8979 | 2452 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
2453 | |
2454 | kfree(flow); | |
2455 | ||
2456 | return 0; | |
2457 | } | |
2458 | ||
aad7e08d AV |
2459 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
2460 | struct tc_cls_flower_offload *f) | |
2461 | { | |
2462 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
2463 | struct mlx5e_tc_flow *flow; | |
aad7e08d AV |
2464 | struct mlx5_fc *counter; |
2465 | u64 bytes; | |
2466 | u64 packets; | |
2467 | u64 lastuse; | |
2468 | ||
2469 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
2470 | tc->ht_params); | |
2471 | if (!flow) | |
2472 | return -EINVAL; | |
2473 | ||
0b67a38f HHZ |
2474 | if (!(flow->flags & MLX5E_TC_FLOW_OFFLOADED)) |
2475 | return 0; | |
2476 | ||
aad7e08d AV |
2477 | counter = mlx5_flow_rule_counter(flow->rule); |
2478 | if (!counter) | |
2479 | return 0; | |
2480 | ||
2481 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
2482 | ||
d897a638 | 2483 | tcf_exts_stats_update(f->exts, bytes, packets, lastuse); |
fed06ee8 | 2484 | |
aad7e08d AV |
2485 | return 0; |
2486 | } | |
2487 | ||
e8f887ac AV |
2488 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
2489 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
2490 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
2491 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
2492 | .automatic_shrinking = true, | |
2493 | }; | |
2494 | ||
2495 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
2496 | { | |
acff797c | 2497 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac | 2498 | |
11c9c548 | 2499 | hash_init(tc->mod_hdr_tbl); |
5c65c564 | 2500 | hash_init(tc->hairpin_tbl); |
11c9c548 | 2501 | |
e8f887ac AV |
2502 | tc->ht_params = mlx5e_tc_flow_ht_params; |
2503 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
2504 | } | |
2505 | ||
2506 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
2507 | { | |
2508 | struct mlx5e_tc_flow *flow = ptr; | |
2509 | struct mlx5e_priv *priv = arg; | |
2510 | ||
961e8979 | 2511 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
2512 | kfree(flow); |
2513 | } | |
2514 | ||
2515 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
2516 | { | |
acff797c | 2517 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
2518 | |
2519 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
2520 | ||
acff797c MG |
2521 | if (!IS_ERR_OR_NULL(tc->t)) { |
2522 | mlx5_destroy_flow_table(tc->t); | |
2523 | tc->t = NULL; | |
e8f887ac AV |
2524 | } |
2525 | } |