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