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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> |
a54e20b4 | 45 | #include <net/vxlan.h> |
e8f887ac AV |
46 | #include "en.h" |
47 | #include "en_tc.h" | |
03a9d11e | 48 | #include "eswitch.h" |
bbd00f7e | 49 | #include "vxlan.h" |
e8f887ac AV |
50 | |
51 | struct mlx5e_tc_flow { | |
52 | struct rhash_head node; | |
53 | u64 cookie; | |
74491de9 | 54 | struct mlx5_flow_handle *rule; |
a54e20b4 | 55 | struct list_head encap; /* flows sharing the same encap */ |
776b12b6 | 56 | struct mlx5_esw_flow_attr *attr; |
e8f887ac AV |
57 | }; |
58 | ||
a54e20b4 HHZ |
59 | enum { |
60 | MLX5_HEADER_TYPE_VXLAN = 0x0, | |
61 | MLX5_HEADER_TYPE_NVGRE = 0x1, | |
62 | }; | |
63 | ||
acff797c MG |
64 | #define MLX5E_TC_TABLE_NUM_ENTRIES 1024 |
65 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 | |
e8f887ac | 66 | |
74491de9 MB |
67 | static struct mlx5_flow_handle * |
68 | mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, | |
69 | struct mlx5_flow_spec *spec, | |
70 | u32 action, u32 flow_tag) | |
e8f887ac | 71 | { |
aad7e08d AV |
72 | struct mlx5_core_dev *dev = priv->mdev; |
73 | struct mlx5_flow_destination dest = { 0 }; | |
66958ed9 HHZ |
74 | struct mlx5_flow_act flow_act = { |
75 | .action = action, | |
76 | .flow_tag = flow_tag, | |
77 | .encap_id = 0, | |
78 | }; | |
aad7e08d | 79 | struct mlx5_fc *counter = NULL; |
74491de9 | 80 | struct mlx5_flow_handle *rule; |
e8f887ac AV |
81 | bool table_created = false; |
82 | ||
aad7e08d AV |
83 | if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
84 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
85 | dest.ft = priv->fs.vlan.ft.t; | |
55130287 | 86 | } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
aad7e08d AV |
87 | counter = mlx5_fc_create(dev, true); |
88 | if (IS_ERR(counter)) | |
89 | return ERR_CAST(counter); | |
90 | ||
91 | dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
92 | dest.counter = counter; | |
93 | } | |
94 | ||
acff797c MG |
95 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
96 | priv->fs.tc.t = | |
97 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
98 | MLX5E_TC_PRIO, | |
99 | MLX5E_TC_TABLE_NUM_ENTRIES, | |
100 | MLX5E_TC_TABLE_NUM_GROUPS, | |
c9f1b073 | 101 | 0, 0); |
acff797c | 102 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
103 | netdev_err(priv->netdev, |
104 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
105 | rule = ERR_CAST(priv->fs.tc.t); |
106 | goto err_create_ft; | |
e8f887ac AV |
107 | } |
108 | ||
109 | table_created = true; | |
110 | } | |
111 | ||
c5bb1730 | 112 | spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
66958ed9 | 113 | rule = mlx5_add_flow_rules(priv->fs.tc.t, spec, &flow_act, &dest, 1); |
aad7e08d AV |
114 | |
115 | if (IS_ERR(rule)) | |
116 | goto err_add_rule; | |
117 | ||
118 | return rule; | |
e8f887ac | 119 | |
aad7e08d AV |
120 | err_add_rule: |
121 | if (table_created) { | |
acff797c MG |
122 | mlx5_destroy_flow_table(priv->fs.tc.t); |
123 | priv->fs.tc.t = NULL; | |
e8f887ac | 124 | } |
aad7e08d AV |
125 | err_create_ft: |
126 | mlx5_fc_destroy(dev, counter); | |
e8f887ac AV |
127 | |
128 | return rule; | |
129 | } | |
130 | ||
74491de9 MB |
131 | static struct mlx5_flow_handle * |
132 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, | |
133 | struct mlx5_flow_spec *spec, | |
134 | struct mlx5_esw_flow_attr *attr) | |
adb4c123 OG |
135 | { |
136 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
8b32580d OG |
137 | int err; |
138 | ||
139 | err = mlx5_eswitch_add_vlan_action(esw, attr); | |
140 | if (err) | |
141 | return ERR_PTR(err); | |
adb4c123 | 142 | |
776b12b6 | 143 | return mlx5_eswitch_add_offloaded_rule(esw, spec, attr); |
adb4c123 OG |
144 | } |
145 | ||
5067b602 RD |
146 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
147 | struct mlx5e_tc_flow *flow) { | |
148 | struct list_head *next = flow->encap.next; | |
149 | ||
150 | list_del(&flow->encap); | |
151 | if (list_empty(next)) { | |
152 | struct mlx5_encap_entry *e; | |
153 | ||
154 | e = list_entry(next, struct mlx5_encap_entry, flows); | |
155 | if (e->n) { | |
156 | mlx5_encap_dealloc(priv->mdev, e->encap_id); | |
157 | neigh_release(e->n); | |
158 | } | |
159 | hlist_del_rcu(&e->encap_hlist); | |
160 | kfree(e); | |
161 | } | |
162 | } | |
163 | ||
e8f887ac | 164 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 165 | struct mlx5e_tc_flow *flow) |
e8f887ac | 166 | { |
8b32580d | 167 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
aad7e08d AV |
168 | struct mlx5_fc *counter = NULL; |
169 | ||
961e8979 | 170 | counter = mlx5_flow_rule_counter(flow->rule); |
aad7e08d | 171 | |
961e8979 | 172 | mlx5_del_flow_rules(flow->rule); |
86a33ae1 | 173 | |
5067b602 | 174 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
961e8979 | 175 | mlx5_eswitch_del_vlan_action(esw, flow->attr); |
5067b602 RD |
176 | if (flow->attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) |
177 | mlx5e_detach_encap(priv, flow); | |
178 | } | |
8b32580d | 179 | |
aad7e08d AV |
180 | mlx5_fc_destroy(priv->mdev, counter); |
181 | ||
5c40348c | 182 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { |
acff797c MG |
183 | mlx5_destroy_flow_table(priv->fs.tc.t); |
184 | priv->fs.tc.t = NULL; | |
e8f887ac AV |
185 | } |
186 | } | |
187 | ||
bbd00f7e HHZ |
188 | static void parse_vxlan_attr(struct mlx5_flow_spec *spec, |
189 | struct tc_cls_flower_offload *f) | |
190 | { | |
191 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
192 | outer_headers); | |
193 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
194 | outer_headers); | |
195 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
196 | misc_parameters); | |
197 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
198 | misc_parameters); | |
199 | ||
200 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol); | |
201 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP); | |
202 | ||
203 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) { | |
204 | struct flow_dissector_key_keyid *key = | |
205 | skb_flow_dissector_target(f->dissector, | |
206 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
207 | f->key); | |
208 | struct flow_dissector_key_keyid *mask = | |
209 | skb_flow_dissector_target(f->dissector, | |
210 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
211 | f->mask); | |
212 | MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni, | |
213 | be32_to_cpu(mask->keyid)); | |
214 | MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni, | |
215 | be32_to_cpu(key->keyid)); | |
216 | } | |
217 | } | |
218 | ||
219 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
220 | struct mlx5_flow_spec *spec, | |
221 | struct tc_cls_flower_offload *f) | |
222 | { | |
223 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
224 | outer_headers); | |
225 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
226 | outer_headers); | |
227 | ||
228 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) { | |
229 | struct flow_dissector_key_ports *key = | |
230 | skb_flow_dissector_target(f->dissector, | |
231 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
232 | f->key); | |
233 | struct flow_dissector_key_ports *mask = | |
234 | skb_flow_dissector_target(f->dissector, | |
235 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
236 | f->mask); | |
237 | ||
238 | /* Full udp dst port must be given */ | |
239 | if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst))) | |
240 | return -EOPNOTSUPP; | |
241 | ||
242 | /* udp src port isn't supported */ | |
243 | if (memchr_inv(&mask->src, 0, sizeof(mask->src))) | |
244 | return -EOPNOTSUPP; | |
245 | ||
246 | if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->dst)) && | |
247 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) | |
248 | parse_vxlan_attr(spec, f); | |
249 | else | |
250 | return -EOPNOTSUPP; | |
251 | ||
252 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
253 | udp_dport, ntohs(mask->dst)); | |
254 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
255 | udp_dport, ntohs(key->dst)); | |
256 | ||
257 | } else { /* udp dst port must be given */ | |
258 | return -EOPNOTSUPP; | |
259 | } | |
260 | ||
261 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) { | |
262 | struct flow_dissector_key_ipv4_addrs *key = | |
263 | skb_flow_dissector_target(f->dissector, | |
264 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
265 | f->key); | |
266 | struct flow_dissector_key_ipv4_addrs *mask = | |
267 | skb_flow_dissector_target(f->dissector, | |
268 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
269 | f->mask); | |
270 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
271 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
272 | ntohl(mask->src)); | |
273 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
274 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
275 | ntohl(key->src)); | |
276 | ||
277 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
278 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
279 | ntohl(mask->dst)); | |
280 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
281 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
282 | ntohl(key->dst)); | |
283 | } | |
284 | ||
285 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
286 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
287 | ||
288 | /* Enforce DMAC when offloading incoming tunneled flows. | |
289 | * Flow counters require a match on the DMAC. | |
290 | */ | |
291 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
292 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
293 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
294 | dmac_47_16), priv->netdev->dev_addr); | |
295 | ||
296 | /* let software handle IP fragments */ | |
297 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
298 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
de0af0bf RD |
303 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
304 | struct mlx5_flow_spec *spec, | |
305 | struct tc_cls_flower_offload *f, | |
306 | u8 *min_inline) | |
e3a2b7ed | 307 | { |
c5bb1730 MG |
308 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
309 | outer_headers); | |
310 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
311 | outer_headers); | |
e3a2b7ed AV |
312 | u16 addr_type = 0; |
313 | u8 ip_proto = 0; | |
314 | ||
de0af0bf RD |
315 | *min_inline = MLX5_INLINE_MODE_L2; |
316 | ||
e3a2b7ed AV |
317 | if (f->dissector->used_keys & |
318 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
319 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
320 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 321 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
e3a2b7ed AV |
322 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
323 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
324 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
325 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
326 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
327 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
328 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
329 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL))) { | |
e3a2b7ed AV |
330 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
331 | f->dissector->used_keys); | |
332 | return -EOPNOTSUPP; | |
333 | } | |
334 | ||
bbd00f7e HHZ |
335 | if ((dissector_uses_key(f->dissector, |
336 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || | |
337 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || | |
338 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && | |
339 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { | |
340 | struct flow_dissector_key_control *key = | |
341 | skb_flow_dissector_target(f->dissector, | |
342 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
343 | f->key); | |
344 | switch (key->addr_type) { | |
345 | case FLOW_DISSECTOR_KEY_IPV4_ADDRS: | |
346 | if (parse_tunnel_attr(priv, spec, f)) | |
347 | return -EOPNOTSUPP; | |
348 | break; | |
349 | default: | |
350 | return -EOPNOTSUPP; | |
351 | } | |
352 | ||
353 | /* In decap flow, header pointers should point to the inner | |
354 | * headers, outer header were already set by parse_tunnel_attr | |
355 | */ | |
356 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
357 | inner_headers); | |
358 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
359 | inner_headers); | |
360 | } | |
361 | ||
e3a2b7ed AV |
362 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { |
363 | struct flow_dissector_key_control *key = | |
364 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 365 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed | 366 | f->key); |
3f7d0eb4 OG |
367 | |
368 | struct flow_dissector_key_control *mask = | |
369 | skb_flow_dissector_target(f->dissector, | |
370 | FLOW_DISSECTOR_KEY_CONTROL, | |
371 | f->mask); | |
e3a2b7ed | 372 | addr_type = key->addr_type; |
3f7d0eb4 OG |
373 | |
374 | if (mask->flags & FLOW_DIS_IS_FRAGMENT) { | |
375 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
376 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
377 | key->flags & FLOW_DIS_IS_FRAGMENT); | |
378 | } | |
e3a2b7ed AV |
379 | } |
380 | ||
381 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
382 | struct flow_dissector_key_basic *key = | |
383 | skb_flow_dissector_target(f->dissector, | |
384 | FLOW_DISSECTOR_KEY_BASIC, | |
385 | f->key); | |
386 | struct flow_dissector_key_basic *mask = | |
387 | skb_flow_dissector_target(f->dissector, | |
388 | FLOW_DISSECTOR_KEY_BASIC, | |
389 | f->mask); | |
390 | ip_proto = key->ip_proto; | |
391 | ||
392 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
393 | ntohs(mask->n_proto)); | |
394 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
395 | ntohs(key->n_proto)); | |
396 | ||
397 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
398 | mask->ip_proto); | |
399 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
400 | key->ip_proto); | |
de0af0bf RD |
401 | |
402 | if (mask->ip_proto) | |
403 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
404 | } |
405 | ||
406 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
407 | struct flow_dissector_key_eth_addrs *key = | |
408 | skb_flow_dissector_target(f->dissector, | |
409 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
410 | f->key); | |
411 | struct flow_dissector_key_eth_addrs *mask = | |
412 | skb_flow_dissector_target(f->dissector, | |
413 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
414 | f->mask); | |
415 | ||
416 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
417 | dmac_47_16), | |
418 | mask->dst); | |
419 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
420 | dmac_47_16), | |
421 | key->dst); | |
422 | ||
423 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
424 | smac_47_16), | |
425 | mask->src); | |
426 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
427 | smac_47_16), | |
428 | key->src); | |
429 | } | |
430 | ||
095b6cfd OG |
431 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { |
432 | struct flow_dissector_key_vlan *key = | |
433 | skb_flow_dissector_target(f->dissector, | |
434 | FLOW_DISSECTOR_KEY_VLAN, | |
435 | f->key); | |
436 | struct flow_dissector_key_vlan *mask = | |
437 | skb_flow_dissector_target(f->dissector, | |
438 | FLOW_DISSECTOR_KEY_VLAN, | |
439 | f->mask); | |
358d79a4 | 440 | if (mask->vlan_id || mask->vlan_priority) { |
095b6cfd OG |
441 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, vlan_tag, 1); |
442 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, vlan_tag, 1); | |
443 | ||
444 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); | |
445 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); | |
358d79a4 OG |
446 | |
447 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); | |
448 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); | |
095b6cfd OG |
449 | } |
450 | } | |
451 | ||
e3a2b7ed AV |
452 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
453 | struct flow_dissector_key_ipv4_addrs *key = | |
454 | skb_flow_dissector_target(f->dissector, | |
455 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
456 | f->key); | |
457 | struct flow_dissector_key_ipv4_addrs *mask = | |
458 | skb_flow_dissector_target(f->dissector, | |
459 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
460 | f->mask); | |
461 | ||
462 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
463 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
464 | &mask->src, sizeof(mask->src)); | |
465 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
466 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
467 | &key->src, sizeof(key->src)); | |
468 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
469 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
470 | &mask->dst, sizeof(mask->dst)); | |
471 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
472 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
473 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
474 | |
475 | if (mask->src || mask->dst) | |
476 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
477 | } |
478 | ||
479 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
480 | struct flow_dissector_key_ipv6_addrs *key = | |
481 | skb_flow_dissector_target(f->dissector, | |
482 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
483 | f->key); | |
484 | struct flow_dissector_key_ipv6_addrs *mask = | |
485 | skb_flow_dissector_target(f->dissector, | |
486 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
487 | f->mask); | |
488 | ||
489 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
490 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
491 | &mask->src, sizeof(mask->src)); | |
492 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
493 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
494 | &key->src, sizeof(key->src)); | |
495 | ||
496 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
497 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
498 | &mask->dst, sizeof(mask->dst)); | |
499 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
500 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
501 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
502 | |
503 | if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || | |
504 | ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) | |
505 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
506 | } |
507 | ||
508 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
509 | struct flow_dissector_key_ports *key = | |
510 | skb_flow_dissector_target(f->dissector, | |
511 | FLOW_DISSECTOR_KEY_PORTS, | |
512 | f->key); | |
513 | struct flow_dissector_key_ports *mask = | |
514 | skb_flow_dissector_target(f->dissector, | |
515 | FLOW_DISSECTOR_KEY_PORTS, | |
516 | f->mask); | |
517 | switch (ip_proto) { | |
518 | case IPPROTO_TCP: | |
519 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
520 | tcp_sport, ntohs(mask->src)); | |
521 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
522 | tcp_sport, ntohs(key->src)); | |
523 | ||
524 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
525 | tcp_dport, ntohs(mask->dst)); | |
526 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
527 | tcp_dport, ntohs(key->dst)); | |
528 | break; | |
529 | ||
530 | case IPPROTO_UDP: | |
531 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
532 | udp_sport, ntohs(mask->src)); | |
533 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
534 | udp_sport, ntohs(key->src)); | |
535 | ||
536 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
537 | udp_dport, ntohs(mask->dst)); | |
538 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
539 | udp_dport, ntohs(key->dst)); | |
540 | break; | |
541 | default: | |
542 | netdev_err(priv->netdev, | |
543 | "Only UDP and TCP transport are supported\n"); | |
544 | return -EINVAL; | |
545 | } | |
de0af0bf RD |
546 | |
547 | if (mask->src || mask->dst) | |
548 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
e3a2b7ed AV |
549 | } |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
de0af0bf RD |
554 | static int parse_cls_flower(struct mlx5e_priv *priv, |
555 | struct mlx5_flow_spec *spec, | |
556 | struct tc_cls_flower_offload *f) | |
557 | { | |
558 | struct mlx5_core_dev *dev = priv->mdev; | |
559 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
560 | struct mlx5_eswitch_rep *rep = priv->ppriv; | |
561 | u8 min_inline; | |
562 | int err; | |
563 | ||
564 | err = __parse_cls_flower(priv, spec, f, &min_inline); | |
565 | ||
566 | if (!err && esw->mode == SRIOV_OFFLOADS && | |
567 | rep->vport != FDB_UPLINK_VPORT) { | |
568 | if (min_inline > esw->offloads.inline_mode) { | |
569 | netdev_warn(priv->netdev, | |
570 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
571 | min_inline, esw->offloads.inline_mode); | |
572 | return -EOPNOTSUPP; | |
573 | } | |
574 | } | |
575 | ||
576 | return err; | |
577 | } | |
578 | ||
5c40348c OG |
579 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
580 | u32 *action, u32 *flow_tag) | |
e3a2b7ed AV |
581 | { |
582 | const struct tc_action *a; | |
22dc13c8 | 583 | LIST_HEAD(actions); |
e3a2b7ed AV |
584 | |
585 | if (tc_no_actions(exts)) | |
586 | return -EINVAL; | |
587 | ||
588 | *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; | |
589 | *action = 0; | |
590 | ||
22dc13c8 WC |
591 | tcf_exts_to_list(exts, &actions); |
592 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed AV |
593 | /* Only support a single action per rule */ |
594 | if (*action) | |
595 | return -EINVAL; | |
596 | ||
597 | if (is_tcf_gact_shot(a)) { | |
598 | *action |= MLX5_FLOW_CONTEXT_ACTION_DROP; | |
aad7e08d AV |
599 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
600 | flow_table_properties_nic_receive.flow_counter)) | |
601 | *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
e3a2b7ed AV |
602 | continue; |
603 | } | |
604 | ||
605 | if (is_tcf_skbedit_mark(a)) { | |
606 | u32 mark = tcf_skbedit_mark(a); | |
607 | ||
608 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
609 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
610 | mark); | |
611 | return -EINVAL; | |
612 | } | |
613 | ||
614 | *flow_tag = mark; | |
615 | *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
616 | continue; | |
617 | } | |
618 | ||
619 | return -EINVAL; | |
620 | } | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
a54e20b4 HHZ |
625 | static inline int cmp_encap_info(struct mlx5_encap_info *a, |
626 | struct mlx5_encap_info *b) | |
627 | { | |
628 | return memcmp(a, b, sizeof(*a)); | |
629 | } | |
630 | ||
631 | static inline int hash_encap_info(struct mlx5_encap_info *info) | |
632 | { | |
633 | return jhash(info, sizeof(*info), 0); | |
634 | } | |
635 | ||
636 | static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, | |
637 | struct net_device *mirred_dev, | |
638 | struct net_device **out_dev, | |
639 | struct flowi4 *fl4, | |
640 | struct neighbour **out_n, | |
641 | __be32 *saddr, | |
642 | int *out_ttl) | |
643 | { | |
644 | struct rtable *rt; | |
645 | struct neighbour *n = NULL; | |
646 | int ttl; | |
647 | ||
648 | #if IS_ENABLED(CONFIG_INET) | |
649 | rt = ip_route_output_key(dev_net(mirred_dev), fl4); | |
650 | if (IS_ERR(rt)) { | |
651 | pr_warn("%s: no route to %pI4\n", __func__, &fl4->daddr); | |
652 | return -EOPNOTSUPP; | |
653 | } | |
654 | #else | |
655 | return -EOPNOTSUPP; | |
656 | #endif | |
657 | ||
658 | if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) { | |
659 | pr_warn("%s: Can't offload the flow, netdevices aren't on the same HW e-switch\n", | |
660 | __func__); | |
661 | ip_rt_put(rt); | |
662 | return -EOPNOTSUPP; | |
663 | } | |
664 | ||
665 | ttl = ip4_dst_hoplimit(&rt->dst); | |
666 | n = dst_neigh_lookup(&rt->dst, &fl4->daddr); | |
667 | ip_rt_put(rt); | |
668 | if (!n) | |
669 | return -ENOMEM; | |
670 | ||
671 | *out_n = n; | |
672 | *saddr = fl4->saddr; | |
673 | *out_ttl = ttl; | |
674 | *out_dev = rt->dst.dev; | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
679 | static int gen_vxlan_header_ipv4(struct net_device *out_dev, | |
680 | char buf[], | |
681 | unsigned char h_dest[ETH_ALEN], | |
682 | int ttl, | |
683 | __be32 daddr, | |
684 | __be32 saddr, | |
685 | __be16 udp_dst_port, | |
686 | __be32 vx_vni) | |
687 | { | |
688 | int encap_size = VXLAN_HLEN + sizeof(struct iphdr) + ETH_HLEN; | |
689 | struct ethhdr *eth = (struct ethhdr *)buf; | |
690 | struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr)); | |
691 | struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr)); | |
692 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
693 | ||
694 | memset(buf, 0, encap_size); | |
695 | ||
696 | ether_addr_copy(eth->h_dest, h_dest); | |
697 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
698 | eth->h_proto = htons(ETH_P_IP); | |
699 | ||
700 | ip->daddr = daddr; | |
701 | ip->saddr = saddr; | |
702 | ||
703 | ip->ttl = ttl; | |
704 | ip->protocol = IPPROTO_UDP; | |
705 | ip->version = 0x4; | |
706 | ip->ihl = 0x5; | |
707 | ||
708 | udp->dest = udp_dst_port; | |
709 | vxh->vx_flags = VXLAN_HF_VNI; | |
710 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
711 | ||
712 | return encap_size; | |
713 | } | |
714 | ||
715 | static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, | |
716 | struct net_device *mirred_dev, | |
717 | struct mlx5_encap_entry *e, | |
718 | struct net_device **out_dev) | |
719 | { | |
720 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
721 | struct flowi4 fl4 = {}; | |
722 | struct neighbour *n; | |
723 | char *encap_header; | |
724 | int encap_size; | |
725 | __be32 saddr; | |
726 | int ttl; | |
727 | int err; | |
728 | ||
729 | encap_header = kzalloc(max_encap_size, GFP_KERNEL); | |
730 | if (!encap_header) | |
731 | return -ENOMEM; | |
732 | ||
733 | switch (e->tunnel_type) { | |
734 | case MLX5_HEADER_TYPE_VXLAN: | |
735 | fl4.flowi4_proto = IPPROTO_UDP; | |
736 | fl4.fl4_dport = e->tun_info.tp_dst; | |
737 | break; | |
738 | default: | |
739 | err = -EOPNOTSUPP; | |
740 | goto out; | |
741 | } | |
742 | fl4.daddr = e->tun_info.daddr; | |
743 | ||
744 | err = mlx5e_route_lookup_ipv4(priv, mirred_dev, out_dev, | |
745 | &fl4, &n, &saddr, &ttl); | |
746 | if (err) | |
747 | goto out; | |
748 | ||
749 | e->n = n; | |
750 | e->out_dev = *out_dev; | |
751 | ||
752 | if (!(n->nud_state & NUD_VALID)) { | |
753 | err = -ENOTSUPP; | |
754 | goto out; | |
755 | } | |
756 | ||
757 | neigh_ha_snapshot(e->h_dest, n, *out_dev); | |
758 | ||
759 | switch (e->tunnel_type) { | |
760 | case MLX5_HEADER_TYPE_VXLAN: | |
761 | encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header, | |
762 | e->h_dest, ttl, | |
763 | e->tun_info.daddr, | |
764 | saddr, e->tun_info.tp_dst, | |
765 | e->tun_info.tun_id); | |
766 | break; | |
767 | default: | |
768 | err = -EOPNOTSUPP; | |
769 | goto out; | |
770 | } | |
771 | ||
772 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
773 | encap_size, encap_header, &e->encap_id); | |
774 | out: | |
775 | kfree(encap_header); | |
776 | return err; | |
777 | } | |
778 | ||
779 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, | |
780 | struct ip_tunnel_info *tun_info, | |
781 | struct net_device *mirred_dev, | |
782 | struct mlx5_esw_flow_attr *attr) | |
783 | { | |
784 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
785 | unsigned short family = ip_tunnel_info_af(tun_info); | |
786 | struct ip_tunnel_key *key = &tun_info->key; | |
787 | struct mlx5_encap_info info; | |
788 | struct mlx5_encap_entry *e; | |
789 | struct net_device *out_dev; | |
790 | uintptr_t hash_key; | |
791 | bool found = false; | |
792 | int tunnel_type; | |
793 | int err; | |
794 | ||
795 | /* udp dst port must be given */ | |
796 | if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst))) | |
797 | return -EOPNOTSUPP; | |
798 | ||
799 | if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->tp_dst)) && | |
800 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) { | |
801 | info.tp_dst = key->tp_dst; | |
802 | info.tun_id = tunnel_id_to_key32(key->tun_id); | |
803 | tunnel_type = MLX5_HEADER_TYPE_VXLAN; | |
804 | } else { | |
805 | return -EOPNOTSUPP; | |
806 | } | |
807 | ||
808 | switch (family) { | |
809 | case AF_INET: | |
810 | info.daddr = key->u.ipv4.dst; | |
811 | break; | |
812 | default: | |
813 | return -EOPNOTSUPP; | |
814 | } | |
815 | ||
816 | hash_key = hash_encap_info(&info); | |
817 | ||
818 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
819 | encap_hlist, hash_key) { | |
820 | if (!cmp_encap_info(&e->tun_info, &info)) { | |
821 | found = true; | |
822 | break; | |
823 | } | |
824 | } | |
825 | ||
826 | if (found) { | |
827 | attr->encap = e; | |
828 | return 0; | |
829 | } | |
830 | ||
831 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
832 | if (!e) | |
833 | return -ENOMEM; | |
834 | ||
835 | e->tun_info = info; | |
836 | e->tunnel_type = tunnel_type; | |
837 | INIT_LIST_HEAD(&e->flows); | |
838 | ||
839 | err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e, &out_dev); | |
840 | if (err) | |
841 | goto out_err; | |
842 | ||
843 | attr->encap = e; | |
844 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); | |
845 | ||
846 | return err; | |
847 | ||
848 | out_err: | |
849 | kfree(e); | |
850 | return err; | |
851 | } | |
852 | ||
03a9d11e | 853 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
a54e20b4 | 854 | struct mlx5e_tc_flow *flow) |
03a9d11e | 855 | { |
a54e20b4 HHZ |
856 | struct mlx5_esw_flow_attr *attr = flow->attr; |
857 | struct ip_tunnel_info *info = NULL; | |
03a9d11e | 858 | const struct tc_action *a; |
22dc13c8 | 859 | LIST_HEAD(actions); |
a54e20b4 HHZ |
860 | bool encap = false; |
861 | int err; | |
03a9d11e OG |
862 | |
863 | if (tc_no_actions(exts)) | |
864 | return -EINVAL; | |
865 | ||
776b12b6 OG |
866 | memset(attr, 0, sizeof(*attr)); |
867 | attr->in_rep = priv->ppriv; | |
03a9d11e | 868 | |
22dc13c8 WC |
869 | tcf_exts_to_list(exts, &actions); |
870 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 871 | if (is_tcf_gact_shot(a)) { |
8b32580d OG |
872 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
873 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
874 | continue; |
875 | } | |
876 | ||
5724b8b5 | 877 | if (is_tcf_mirred_egress_redirect(a)) { |
03a9d11e OG |
878 | int ifindex = tcf_mirred_ifindex(a); |
879 | struct net_device *out_dev; | |
880 | struct mlx5e_priv *out_priv; | |
03a9d11e OG |
881 | |
882 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
883 | ||
a54e20b4 HHZ |
884 | if (switchdev_port_same_parent_id(priv->netdev, |
885 | out_dev)) { | |
886 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
887 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
888 | out_priv = netdev_priv(out_dev); | |
889 | attr->out_rep = out_priv->ppriv; | |
890 | } else if (encap) { | |
891 | err = mlx5e_attach_encap(priv, info, | |
892 | out_dev, attr); | |
893 | if (err) | |
894 | return err; | |
895 | list_add(&flow->encap, &attr->encap->flows); | |
896 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | | |
897 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
898 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
899 | out_priv = netdev_priv(attr->encap->out_dev); | |
900 | attr->out_rep = out_priv->ppriv; | |
901 | } else { | |
03a9d11e OG |
902 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
903 | priv->netdev->name, out_dev->name); | |
904 | return -EINVAL; | |
905 | } | |
a54e20b4 HHZ |
906 | continue; |
907 | } | |
03a9d11e | 908 | |
a54e20b4 HHZ |
909 | if (is_tcf_tunnel_set(a)) { |
910 | info = tcf_tunnel_info(a); | |
911 | if (info) | |
912 | encap = true; | |
913 | else | |
914 | return -EOPNOTSUPP; | |
03a9d11e OG |
915 | continue; |
916 | } | |
917 | ||
8b32580d OG |
918 | if (is_tcf_vlan(a)) { |
919 | if (tcf_vlan_action(a) == VLAN_F_POP) { | |
920 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; | |
921 | } else if (tcf_vlan_action(a) == VLAN_F_PUSH) { | |
922 | if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q)) | |
923 | return -EOPNOTSUPP; | |
924 | ||
925 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
926 | attr->vlan = tcf_vlan_push_vid(a); | |
927 | } | |
928 | continue; | |
929 | } | |
930 | ||
bbd00f7e HHZ |
931 | if (is_tcf_tunnel_release(a)) { |
932 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; | |
933 | continue; | |
934 | } | |
935 | ||
03a9d11e OG |
936 | return -EINVAL; |
937 | } | |
938 | return 0; | |
939 | } | |
940 | ||
e3a2b7ed AV |
941 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
942 | struct tc_cls_flower_offload *f) | |
943 | { | |
acff797c | 944 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed | 945 | int err = 0; |
776b12b6 OG |
946 | bool fdb_flow = false; |
947 | u32 flow_tag, action; | |
e3a2b7ed | 948 | struct mlx5e_tc_flow *flow; |
c5bb1730 | 949 | struct mlx5_flow_spec *spec; |
adb4c123 | 950 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
e3a2b7ed | 951 | |
776b12b6 OG |
952 | if (esw && esw->mode == SRIOV_OFFLOADS) |
953 | fdb_flow = true; | |
954 | ||
53636068 RD |
955 | if (fdb_flow) |
956 | flow = kzalloc(sizeof(*flow) + | |
957 | sizeof(struct mlx5_esw_flow_attr), | |
958 | GFP_KERNEL); | |
959 | else | |
960 | flow = kzalloc(sizeof(*flow), GFP_KERNEL); | |
e3a2b7ed | 961 | |
c5bb1730 MG |
962 | spec = mlx5_vzalloc(sizeof(*spec)); |
963 | if (!spec || !flow) { | |
e3a2b7ed AV |
964 | err = -ENOMEM; |
965 | goto err_free; | |
966 | } | |
967 | ||
968 | flow->cookie = f->cookie; | |
969 | ||
c5bb1730 | 970 | err = parse_cls_flower(priv, spec, f); |
e3a2b7ed AV |
971 | if (err < 0) |
972 | goto err_free; | |
973 | ||
776b12b6 OG |
974 | if (fdb_flow) { |
975 | flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1); | |
a54e20b4 | 976 | err = parse_tc_fdb_actions(priv, f->exts, flow); |
adb4c123 OG |
977 | if (err < 0) |
978 | goto err_free; | |
776b12b6 | 979 | flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr); |
adb4c123 OG |
980 | } else { |
981 | err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag); | |
982 | if (err < 0) | |
983 | goto err_free; | |
984 | flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag); | |
985 | } | |
e3a2b7ed | 986 | |
e3a2b7ed AV |
987 | if (IS_ERR(flow->rule)) { |
988 | err = PTR_ERR(flow->rule); | |
5c40348c | 989 | goto err_free; |
e3a2b7ed AV |
990 | } |
991 | ||
5c40348c OG |
992 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
993 | tc->ht_params); | |
994 | if (err) | |
995 | goto err_del_rule; | |
996 | ||
e3a2b7ed AV |
997 | goto out; |
998 | ||
5c40348c | 999 | err_del_rule: |
74491de9 | 1000 | mlx5_del_flow_rules(flow->rule); |
e3a2b7ed AV |
1001 | |
1002 | err_free: | |
53636068 | 1003 | kfree(flow); |
e3a2b7ed | 1004 | out: |
c5bb1730 | 1005 | kvfree(spec); |
e3a2b7ed AV |
1006 | return err; |
1007 | } | |
1008 | ||
1009 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
1010 | struct tc_cls_flower_offload *f) | |
1011 | { | |
1012 | struct mlx5e_tc_flow *flow; | |
acff797c | 1013 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
1014 | |
1015 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1016 | tc->ht_params); | |
1017 | if (!flow) | |
1018 | return -EINVAL; | |
1019 | ||
1020 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
1021 | ||
961e8979 | 1022 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed | 1023 | |
a54e20b4 | 1024 | |
e3a2b7ed AV |
1025 | kfree(flow); |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
aad7e08d AV |
1030 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
1031 | struct tc_cls_flower_offload *f) | |
1032 | { | |
1033 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
1034 | struct mlx5e_tc_flow *flow; | |
1035 | struct tc_action *a; | |
1036 | struct mlx5_fc *counter; | |
22dc13c8 | 1037 | LIST_HEAD(actions); |
aad7e08d AV |
1038 | u64 bytes; |
1039 | u64 packets; | |
1040 | u64 lastuse; | |
1041 | ||
1042 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1043 | tc->ht_params); | |
1044 | if (!flow) | |
1045 | return -EINVAL; | |
1046 | ||
1047 | counter = mlx5_flow_rule_counter(flow->rule); | |
1048 | if (!counter) | |
1049 | return 0; | |
1050 | ||
1051 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
1052 | ||
22dc13c8 WC |
1053 | tcf_exts_to_list(f->exts, &actions); |
1054 | list_for_each_entry(a, &actions, list) | |
aad7e08d AV |
1055 | tcf_action_stats_update(a, bytes, packets, lastuse); |
1056 | ||
1057 | return 0; | |
1058 | } | |
1059 | ||
e8f887ac AV |
1060 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
1061 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
1062 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
1063 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
1064 | .automatic_shrinking = true, | |
1065 | }; | |
1066 | ||
1067 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
1068 | { | |
acff797c | 1069 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1070 | |
1071 | tc->ht_params = mlx5e_tc_flow_ht_params; | |
1072 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
1073 | } | |
1074 | ||
1075 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
1076 | { | |
1077 | struct mlx5e_tc_flow *flow = ptr; | |
1078 | struct mlx5e_priv *priv = arg; | |
1079 | ||
961e8979 | 1080 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
1081 | kfree(flow); |
1082 | } | |
1083 | ||
1084 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
1085 | { | |
acff797c | 1086 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1087 | |
1088 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
1089 | ||
acff797c MG |
1090 | if (!IS_ERR_OR_NULL(tc->t)) { |
1091 | mlx5_destroy_flow_table(tc->t); | |
1092 | tc->t = NULL; | |
e8f887ac AV |
1093 | } |
1094 | } |