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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 AV |
33 | #include <net/flow_dissector.h> |
34 | #include <net/pkt_cls.h> | |
35 | #include <net/tc_act/tc_gact.h> | |
12185a9f | 36 | #include <net/tc_act/tc_skbedit.h> |
e8f887ac AV |
37 | #include <linux/mlx5/fs.h> |
38 | #include <linux/mlx5/device.h> | |
39 | #include <linux/rhashtable.h> | |
03a9d11e OG |
40 | #include <net/switchdev.h> |
41 | #include <net/tc_act/tc_mirred.h> | |
776b12b6 | 42 | #include <net/tc_act/tc_vlan.h> |
e8f887ac AV |
43 | #include "en.h" |
44 | #include "en_tc.h" | |
03a9d11e | 45 | #include "eswitch.h" |
e8f887ac AV |
46 | |
47 | struct mlx5e_tc_flow { | |
48 | struct rhash_head node; | |
49 | u64 cookie; | |
50 | struct mlx5_flow_rule *rule; | |
776b12b6 | 51 | struct mlx5_esw_flow_attr *attr; |
e8f887ac AV |
52 | }; |
53 | ||
acff797c MG |
54 | #define MLX5E_TC_TABLE_NUM_ENTRIES 1024 |
55 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 | |
e8f887ac | 56 | |
5c40348c OG |
57 | static struct mlx5_flow_rule *mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, |
58 | struct mlx5_flow_spec *spec, | |
59 | u32 action, u32 flow_tag) | |
e8f887ac | 60 | { |
aad7e08d AV |
61 | struct mlx5_core_dev *dev = priv->mdev; |
62 | struct mlx5_flow_destination dest = { 0 }; | |
63 | struct mlx5_fc *counter = NULL; | |
e8f887ac AV |
64 | struct mlx5_flow_rule *rule; |
65 | bool table_created = false; | |
66 | ||
aad7e08d AV |
67 | if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
68 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
69 | dest.ft = priv->fs.vlan.ft.t; | |
55130287 | 70 | } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
aad7e08d AV |
71 | counter = mlx5_fc_create(dev, true); |
72 | if (IS_ERR(counter)) | |
73 | return ERR_CAST(counter); | |
74 | ||
75 | dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
76 | dest.counter = counter; | |
77 | } | |
78 | ||
acff797c MG |
79 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
80 | priv->fs.tc.t = | |
81 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
82 | MLX5E_TC_PRIO, | |
83 | MLX5E_TC_TABLE_NUM_ENTRIES, | |
84 | MLX5E_TC_TABLE_NUM_GROUPS, | |
d63cd286 | 85 | 0); |
acff797c | 86 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
87 | netdev_err(priv->netdev, |
88 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
89 | rule = ERR_CAST(priv->fs.tc.t); |
90 | goto err_create_ft; | |
e8f887ac AV |
91 | } |
92 | ||
93 | table_created = true; | |
94 | } | |
95 | ||
c5bb1730 MG |
96 | spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
97 | rule = mlx5_add_flow_rule(priv->fs.tc.t, spec, | |
e8f887ac | 98 | action, flow_tag, |
aad7e08d AV |
99 | &dest); |
100 | ||
101 | if (IS_ERR(rule)) | |
102 | goto err_add_rule; | |
103 | ||
104 | return rule; | |
e8f887ac | 105 | |
aad7e08d AV |
106 | err_add_rule: |
107 | if (table_created) { | |
acff797c MG |
108 | mlx5_destroy_flow_table(priv->fs.tc.t); |
109 | priv->fs.tc.t = NULL; | |
e8f887ac | 110 | } |
aad7e08d AV |
111 | err_create_ft: |
112 | mlx5_fc_destroy(dev, counter); | |
e8f887ac AV |
113 | |
114 | return rule; | |
115 | } | |
116 | ||
adb4c123 OG |
117 | static struct mlx5_flow_rule *mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, |
118 | struct mlx5_flow_spec *spec, | |
776b12b6 | 119 | struct mlx5_esw_flow_attr *attr) |
adb4c123 OG |
120 | { |
121 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
adb4c123 | 122 | |
776b12b6 | 123 | return mlx5_eswitch_add_offloaded_rule(esw, spec, attr); |
adb4c123 OG |
124 | } |
125 | ||
e8f887ac AV |
126 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
127 | struct mlx5_flow_rule *rule) | |
128 | { | |
aad7e08d AV |
129 | struct mlx5_fc *counter = NULL; |
130 | ||
131 | counter = mlx5_flow_rule_counter(rule); | |
132 | ||
e8f887ac AV |
133 | mlx5_del_flow_rule(rule); |
134 | ||
aad7e08d AV |
135 | mlx5_fc_destroy(priv->mdev, counter); |
136 | ||
5c40348c | 137 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { |
acff797c MG |
138 | mlx5_destroy_flow_table(priv->fs.tc.t); |
139 | priv->fs.tc.t = NULL; | |
e8f887ac AV |
140 | } |
141 | } | |
142 | ||
c5bb1730 | 143 | static int parse_cls_flower(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, |
e3a2b7ed AV |
144 | struct tc_cls_flower_offload *f) |
145 | { | |
c5bb1730 MG |
146 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
147 | outer_headers); | |
148 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
149 | outer_headers); | |
e3a2b7ed AV |
150 | u16 addr_type = 0; |
151 | u8 ip_proto = 0; | |
152 | ||
153 | if (f->dissector->used_keys & | |
154 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
155 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
156 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
157 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | | |
158 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
159 | BIT(FLOW_DISSECTOR_KEY_PORTS))) { | |
160 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", | |
161 | f->dissector->used_keys); | |
162 | return -EOPNOTSUPP; | |
163 | } | |
164 | ||
165 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { | |
166 | struct flow_dissector_key_control *key = | |
167 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 168 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed AV |
169 | f->key); |
170 | addr_type = key->addr_type; | |
171 | } | |
172 | ||
173 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
174 | struct flow_dissector_key_basic *key = | |
175 | skb_flow_dissector_target(f->dissector, | |
176 | FLOW_DISSECTOR_KEY_BASIC, | |
177 | f->key); | |
178 | struct flow_dissector_key_basic *mask = | |
179 | skb_flow_dissector_target(f->dissector, | |
180 | FLOW_DISSECTOR_KEY_BASIC, | |
181 | f->mask); | |
182 | ip_proto = key->ip_proto; | |
183 | ||
184 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
185 | ntohs(mask->n_proto)); | |
186 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
187 | ntohs(key->n_proto)); | |
188 | ||
189 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
190 | mask->ip_proto); | |
191 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
192 | key->ip_proto); | |
193 | } | |
194 | ||
195 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
196 | struct flow_dissector_key_eth_addrs *key = | |
197 | skb_flow_dissector_target(f->dissector, | |
198 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
199 | f->key); | |
200 | struct flow_dissector_key_eth_addrs *mask = | |
201 | skb_flow_dissector_target(f->dissector, | |
202 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
203 | f->mask); | |
204 | ||
205 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
206 | dmac_47_16), | |
207 | mask->dst); | |
208 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
209 | dmac_47_16), | |
210 | key->dst); | |
211 | ||
212 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
213 | smac_47_16), | |
214 | mask->src); | |
215 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
216 | smac_47_16), | |
217 | key->src); | |
218 | } | |
219 | ||
220 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { | |
221 | struct flow_dissector_key_ipv4_addrs *key = | |
222 | skb_flow_dissector_target(f->dissector, | |
223 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
224 | f->key); | |
225 | struct flow_dissector_key_ipv4_addrs *mask = | |
226 | skb_flow_dissector_target(f->dissector, | |
227 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
228 | f->mask); | |
229 | ||
230 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
231 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
232 | &mask->src, sizeof(mask->src)); | |
233 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
234 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
235 | &key->src, sizeof(key->src)); | |
236 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
237 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
238 | &mask->dst, sizeof(mask->dst)); | |
239 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
240 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
241 | &key->dst, sizeof(key->dst)); | |
242 | } | |
243 | ||
244 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
245 | struct flow_dissector_key_ipv6_addrs *key = | |
246 | skb_flow_dissector_target(f->dissector, | |
247 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
248 | f->key); | |
249 | struct flow_dissector_key_ipv6_addrs *mask = | |
250 | skb_flow_dissector_target(f->dissector, | |
251 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
252 | f->mask); | |
253 | ||
254 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
255 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
256 | &mask->src, sizeof(mask->src)); | |
257 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
258 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
259 | &key->src, sizeof(key->src)); | |
260 | ||
261 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
262 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
263 | &mask->dst, sizeof(mask->dst)); | |
264 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
265 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
266 | &key->dst, sizeof(key->dst)); | |
267 | } | |
268 | ||
269 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
270 | struct flow_dissector_key_ports *key = | |
271 | skb_flow_dissector_target(f->dissector, | |
272 | FLOW_DISSECTOR_KEY_PORTS, | |
273 | f->key); | |
274 | struct flow_dissector_key_ports *mask = | |
275 | skb_flow_dissector_target(f->dissector, | |
276 | FLOW_DISSECTOR_KEY_PORTS, | |
277 | f->mask); | |
278 | switch (ip_proto) { | |
279 | case IPPROTO_TCP: | |
280 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
281 | tcp_sport, ntohs(mask->src)); | |
282 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
283 | tcp_sport, ntohs(key->src)); | |
284 | ||
285 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
286 | tcp_dport, ntohs(mask->dst)); | |
287 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
288 | tcp_dport, ntohs(key->dst)); | |
289 | break; | |
290 | ||
291 | case IPPROTO_UDP: | |
292 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
293 | udp_sport, ntohs(mask->src)); | |
294 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
295 | udp_sport, ntohs(key->src)); | |
296 | ||
297 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
298 | udp_dport, ntohs(mask->dst)); | |
299 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
300 | udp_dport, ntohs(key->dst)); | |
301 | break; | |
302 | default: | |
303 | netdev_err(priv->netdev, | |
304 | "Only UDP and TCP transport are supported\n"); | |
305 | return -EINVAL; | |
306 | } | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
5c40348c OG |
312 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
313 | u32 *action, u32 *flow_tag) | |
e3a2b7ed AV |
314 | { |
315 | const struct tc_action *a; | |
22dc13c8 | 316 | LIST_HEAD(actions); |
e3a2b7ed AV |
317 | |
318 | if (tc_no_actions(exts)) | |
319 | return -EINVAL; | |
320 | ||
321 | *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; | |
322 | *action = 0; | |
323 | ||
22dc13c8 WC |
324 | tcf_exts_to_list(exts, &actions); |
325 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed AV |
326 | /* Only support a single action per rule */ |
327 | if (*action) | |
328 | return -EINVAL; | |
329 | ||
330 | if (is_tcf_gact_shot(a)) { | |
331 | *action |= MLX5_FLOW_CONTEXT_ACTION_DROP; | |
aad7e08d AV |
332 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
333 | flow_table_properties_nic_receive.flow_counter)) | |
334 | *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
e3a2b7ed AV |
335 | continue; |
336 | } | |
337 | ||
338 | if (is_tcf_skbedit_mark(a)) { | |
339 | u32 mark = tcf_skbedit_mark(a); | |
340 | ||
341 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
342 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
343 | mark); | |
344 | return -EINVAL; | |
345 | } | |
346 | ||
347 | *flow_tag = mark; | |
348 | *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
349 | continue; | |
350 | } | |
351 | ||
352 | return -EINVAL; | |
353 | } | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
03a9d11e | 358 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
776b12b6 | 359 | struct mlx5_esw_flow_attr *attr) |
03a9d11e OG |
360 | { |
361 | const struct tc_action *a; | |
22dc13c8 | 362 | LIST_HEAD(actions); |
03a9d11e OG |
363 | |
364 | if (tc_no_actions(exts)) | |
365 | return -EINVAL; | |
366 | ||
776b12b6 OG |
367 | memset(attr, 0, sizeof(*attr)); |
368 | attr->in_rep = priv->ppriv; | |
03a9d11e | 369 | |
22dc13c8 WC |
370 | tcf_exts_to_list(exts, &actions); |
371 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 372 | /* Only support a single action per rule */ |
776b12b6 | 373 | if (attr->action) |
03a9d11e OG |
374 | return -EINVAL; |
375 | ||
376 | if (is_tcf_gact_shot(a)) { | |
776b12b6 OG |
377 | attr->action = MLX5_FLOW_CONTEXT_ACTION_DROP | |
378 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
379 | continue; |
380 | } | |
381 | ||
382 | if (is_tcf_mirred_redirect(a)) { | |
383 | int ifindex = tcf_mirred_ifindex(a); | |
384 | struct net_device *out_dev; | |
385 | struct mlx5e_priv *out_priv; | |
03a9d11e OG |
386 | |
387 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
388 | ||
389 | if (!switchdev_port_same_parent_id(priv->netdev, out_dev)) { | |
390 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", | |
391 | priv->netdev->name, out_dev->name); | |
392 | return -EINVAL; | |
393 | } | |
394 | ||
776b12b6 | 395 | attr->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
03a9d11e | 396 | out_priv = netdev_priv(out_dev); |
776b12b6 | 397 | attr->out_rep = out_priv->ppriv; |
03a9d11e OG |
398 | continue; |
399 | } | |
400 | ||
401 | return -EINVAL; | |
402 | } | |
403 | return 0; | |
404 | } | |
405 | ||
e3a2b7ed AV |
406 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
407 | struct tc_cls_flower_offload *f) | |
408 | { | |
acff797c | 409 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed | 410 | int err = 0; |
776b12b6 OG |
411 | bool fdb_flow = false; |
412 | u32 flow_tag, action; | |
e3a2b7ed | 413 | struct mlx5e_tc_flow *flow; |
c5bb1730 | 414 | struct mlx5_flow_spec *spec; |
e3a2b7ed | 415 | struct mlx5_flow_rule *old = NULL; |
adb4c123 | 416 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
e3a2b7ed | 417 | |
776b12b6 OG |
418 | if (esw && esw->mode == SRIOV_OFFLOADS) |
419 | fdb_flow = true; | |
420 | ||
e3a2b7ed AV |
421 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, |
422 | tc->ht_params); | |
776b12b6 | 423 | if (flow) { |
e3a2b7ed | 424 | old = flow->rule; |
776b12b6 OG |
425 | } else { |
426 | if (fdb_flow) | |
427 | flow = kzalloc(sizeof(*flow) + sizeof(struct mlx5_esw_flow_attr), | |
428 | GFP_KERNEL); | |
429 | else | |
430 | flow = kzalloc(sizeof(*flow), GFP_KERNEL); | |
431 | } | |
e3a2b7ed | 432 | |
c5bb1730 MG |
433 | spec = mlx5_vzalloc(sizeof(*spec)); |
434 | if (!spec || !flow) { | |
e3a2b7ed AV |
435 | err = -ENOMEM; |
436 | goto err_free; | |
437 | } | |
438 | ||
439 | flow->cookie = f->cookie; | |
440 | ||
c5bb1730 | 441 | err = parse_cls_flower(priv, spec, f); |
e3a2b7ed AV |
442 | if (err < 0) |
443 | goto err_free; | |
444 | ||
776b12b6 OG |
445 | if (fdb_flow) { |
446 | flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1); | |
447 | err = parse_tc_fdb_actions(priv, f->exts, flow->attr); | |
adb4c123 OG |
448 | if (err < 0) |
449 | goto err_free; | |
776b12b6 | 450 | flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr); |
adb4c123 OG |
451 | } else { |
452 | err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag); | |
453 | if (err < 0) | |
454 | goto err_free; | |
455 | flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag); | |
456 | } | |
e3a2b7ed | 457 | |
e3a2b7ed AV |
458 | if (IS_ERR(flow->rule)) { |
459 | err = PTR_ERR(flow->rule); | |
5c40348c | 460 | goto err_free; |
e3a2b7ed AV |
461 | } |
462 | ||
5c40348c OG |
463 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
464 | tc->ht_params); | |
465 | if (err) | |
466 | goto err_del_rule; | |
467 | ||
e3a2b7ed AV |
468 | if (old) |
469 | mlx5e_tc_del_flow(priv, old); | |
470 | ||
471 | goto out; | |
472 | ||
5c40348c OG |
473 | err_del_rule: |
474 | mlx5_del_flow_rule(flow->rule); | |
e3a2b7ed AV |
475 | |
476 | err_free: | |
477 | if (!old) | |
478 | kfree(flow); | |
479 | out: | |
c5bb1730 | 480 | kvfree(spec); |
e3a2b7ed AV |
481 | return err; |
482 | } | |
483 | ||
484 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
485 | struct tc_cls_flower_offload *f) | |
486 | { | |
487 | struct mlx5e_tc_flow *flow; | |
acff797c | 488 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
489 | |
490 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
491 | tc->ht_params); | |
492 | if (!flow) | |
493 | return -EINVAL; | |
494 | ||
495 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
496 | ||
497 | mlx5e_tc_del_flow(priv, flow->rule); | |
498 | ||
499 | kfree(flow); | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
aad7e08d AV |
504 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
505 | struct tc_cls_flower_offload *f) | |
506 | { | |
507 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
508 | struct mlx5e_tc_flow *flow; | |
509 | struct tc_action *a; | |
510 | struct mlx5_fc *counter; | |
22dc13c8 | 511 | LIST_HEAD(actions); |
aad7e08d AV |
512 | u64 bytes; |
513 | u64 packets; | |
514 | u64 lastuse; | |
515 | ||
516 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
517 | tc->ht_params); | |
518 | if (!flow) | |
519 | return -EINVAL; | |
520 | ||
521 | counter = mlx5_flow_rule_counter(flow->rule); | |
522 | if (!counter) | |
523 | return 0; | |
524 | ||
525 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
526 | ||
22dc13c8 WC |
527 | tcf_exts_to_list(f->exts, &actions); |
528 | list_for_each_entry(a, &actions, list) | |
aad7e08d AV |
529 | tcf_action_stats_update(a, bytes, packets, lastuse); |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
e8f887ac AV |
534 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
535 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
536 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
537 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
538 | .automatic_shrinking = true, | |
539 | }; | |
540 | ||
541 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
542 | { | |
acff797c | 543 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
544 | |
545 | tc->ht_params = mlx5e_tc_flow_ht_params; | |
546 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
547 | } | |
548 | ||
549 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
550 | { | |
551 | struct mlx5e_tc_flow *flow = ptr; | |
552 | struct mlx5e_priv *priv = arg; | |
553 | ||
554 | mlx5e_tc_del_flow(priv, flow->rule); | |
555 | kfree(flow); | |
556 | } | |
557 | ||
558 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
559 | { | |
acff797c | 560 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
561 | |
562 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
563 | ||
acff797c MG |
564 | if (!IS_ERR_OR_NULL(tc->t)) { |
565 | mlx5_destroy_flow_table(tc->t); | |
566 | tc->t = NULL; | |
e8f887ac AV |
567 | } |
568 | } |