Commit | Line | Data |
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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> | |
e8f887ac AV |
42 | #include "en.h" |
43 | #include "en_tc.h" | |
03a9d11e | 44 | #include "eswitch.h" |
e8f887ac AV |
45 | |
46 | struct mlx5e_tc_flow { | |
47 | struct rhash_head node; | |
48 | u64 cookie; | |
49 | struct mlx5_flow_rule *rule; | |
50 | }; | |
51 | ||
acff797c MG |
52 | #define MLX5E_TC_TABLE_NUM_ENTRIES 1024 |
53 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 | |
e8f887ac | 54 | |
5c40348c OG |
55 | static struct mlx5_flow_rule *mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, |
56 | struct mlx5_flow_spec *spec, | |
57 | u32 action, u32 flow_tag) | |
e8f887ac | 58 | { |
aad7e08d AV |
59 | struct mlx5_core_dev *dev = priv->mdev; |
60 | struct mlx5_flow_destination dest = { 0 }; | |
61 | struct mlx5_fc *counter = NULL; | |
e8f887ac AV |
62 | struct mlx5_flow_rule *rule; |
63 | bool table_created = false; | |
64 | ||
aad7e08d AV |
65 | if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
66 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
67 | dest.ft = priv->fs.vlan.ft.t; | |
55130287 | 68 | } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
aad7e08d AV |
69 | counter = mlx5_fc_create(dev, true); |
70 | if (IS_ERR(counter)) | |
71 | return ERR_CAST(counter); | |
72 | ||
73 | dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
74 | dest.counter = counter; | |
75 | } | |
76 | ||
acff797c MG |
77 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
78 | priv->fs.tc.t = | |
79 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
80 | MLX5E_TC_PRIO, | |
81 | MLX5E_TC_TABLE_NUM_ENTRIES, | |
82 | MLX5E_TC_TABLE_NUM_GROUPS, | |
d63cd286 | 83 | 0); |
acff797c | 84 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
85 | netdev_err(priv->netdev, |
86 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
87 | rule = ERR_CAST(priv->fs.tc.t); |
88 | goto err_create_ft; | |
e8f887ac AV |
89 | } |
90 | ||
91 | table_created = true; | |
92 | } | |
93 | ||
c5bb1730 MG |
94 | spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
95 | rule = mlx5_add_flow_rule(priv->fs.tc.t, spec, | |
e8f887ac | 96 | action, flow_tag, |
aad7e08d AV |
97 | &dest); |
98 | ||
99 | if (IS_ERR(rule)) | |
100 | goto err_add_rule; | |
101 | ||
102 | return rule; | |
e8f887ac | 103 | |
aad7e08d AV |
104 | err_add_rule: |
105 | if (table_created) { | |
acff797c MG |
106 | mlx5_destroy_flow_table(priv->fs.tc.t); |
107 | priv->fs.tc.t = NULL; | |
e8f887ac | 108 | } |
aad7e08d AV |
109 | err_create_ft: |
110 | mlx5_fc_destroy(dev, counter); | |
e8f887ac AV |
111 | |
112 | return rule; | |
113 | } | |
114 | ||
adb4c123 OG |
115 | static struct mlx5_flow_rule *mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, |
116 | struct mlx5_flow_spec *spec, | |
117 | u32 action, u32 dst_vport) | |
118 | { | |
119 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
120 | struct mlx5_eswitch_rep *rep = priv->ppriv; | |
121 | u32 src_vport; | |
122 | ||
123 | if (rep->vport) /* set source vport for the flow */ | |
124 | src_vport = rep->vport; | |
125 | else | |
126 | src_vport = FDB_UPLINK_VPORT; | |
127 | ||
128 | return mlx5_eswitch_add_offloaded_rule(esw, spec, action, src_vport, dst_vport); | |
129 | } | |
130 | ||
e8f887ac AV |
131 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
132 | struct mlx5_flow_rule *rule) | |
133 | { | |
aad7e08d AV |
134 | struct mlx5_fc *counter = NULL; |
135 | ||
136 | counter = mlx5_flow_rule_counter(rule); | |
137 | ||
e8f887ac AV |
138 | mlx5_del_flow_rule(rule); |
139 | ||
aad7e08d AV |
140 | mlx5_fc_destroy(priv->mdev, counter); |
141 | ||
5c40348c | 142 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { |
acff797c MG |
143 | mlx5_destroy_flow_table(priv->fs.tc.t); |
144 | priv->fs.tc.t = NULL; | |
e8f887ac AV |
145 | } |
146 | } | |
147 | ||
c5bb1730 | 148 | static int parse_cls_flower(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec, |
e3a2b7ed AV |
149 | struct tc_cls_flower_offload *f) |
150 | { | |
c5bb1730 MG |
151 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
152 | outer_headers); | |
153 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
154 | outer_headers); | |
e3a2b7ed AV |
155 | u16 addr_type = 0; |
156 | u8 ip_proto = 0; | |
157 | ||
158 | if (f->dissector->used_keys & | |
159 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
160 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
161 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
162 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | | |
163 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
164 | BIT(FLOW_DISSECTOR_KEY_PORTS))) { | |
165 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", | |
166 | f->dissector->used_keys); | |
167 | return -EOPNOTSUPP; | |
168 | } | |
169 | ||
170 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { | |
171 | struct flow_dissector_key_control *key = | |
172 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 173 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed AV |
174 | f->key); |
175 | addr_type = key->addr_type; | |
176 | } | |
177 | ||
178 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
179 | struct flow_dissector_key_basic *key = | |
180 | skb_flow_dissector_target(f->dissector, | |
181 | FLOW_DISSECTOR_KEY_BASIC, | |
182 | f->key); | |
183 | struct flow_dissector_key_basic *mask = | |
184 | skb_flow_dissector_target(f->dissector, | |
185 | FLOW_DISSECTOR_KEY_BASIC, | |
186 | f->mask); | |
187 | ip_proto = key->ip_proto; | |
188 | ||
189 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
190 | ntohs(mask->n_proto)); | |
191 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
192 | ntohs(key->n_proto)); | |
193 | ||
194 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
195 | mask->ip_proto); | |
196 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
197 | key->ip_proto); | |
198 | } | |
199 | ||
200 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
201 | struct flow_dissector_key_eth_addrs *key = | |
202 | skb_flow_dissector_target(f->dissector, | |
203 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
204 | f->key); | |
205 | struct flow_dissector_key_eth_addrs *mask = | |
206 | skb_flow_dissector_target(f->dissector, | |
207 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
208 | f->mask); | |
209 | ||
210 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
211 | dmac_47_16), | |
212 | mask->dst); | |
213 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
214 | dmac_47_16), | |
215 | key->dst); | |
216 | ||
217 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
218 | smac_47_16), | |
219 | mask->src); | |
220 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
221 | smac_47_16), | |
222 | key->src); | |
223 | } | |
224 | ||
225 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { | |
226 | struct flow_dissector_key_ipv4_addrs *key = | |
227 | skb_flow_dissector_target(f->dissector, | |
228 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
229 | f->key); | |
230 | struct flow_dissector_key_ipv4_addrs *mask = | |
231 | skb_flow_dissector_target(f->dissector, | |
232 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
233 | f->mask); | |
234 | ||
235 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
236 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
237 | &mask->src, sizeof(mask->src)); | |
238 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
239 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
240 | &key->src, sizeof(key->src)); | |
241 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
242 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
243 | &mask->dst, sizeof(mask->dst)); | |
244 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
245 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
246 | &key->dst, sizeof(key->dst)); | |
247 | } | |
248 | ||
249 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
250 | struct flow_dissector_key_ipv6_addrs *key = | |
251 | skb_flow_dissector_target(f->dissector, | |
252 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
253 | f->key); | |
254 | struct flow_dissector_key_ipv6_addrs *mask = | |
255 | skb_flow_dissector_target(f->dissector, | |
256 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
257 | f->mask); | |
258 | ||
259 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
260 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
261 | &mask->src, sizeof(mask->src)); | |
262 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
263 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
264 | &key->src, sizeof(key->src)); | |
265 | ||
266 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
267 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
268 | &mask->dst, sizeof(mask->dst)); | |
269 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
270 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
271 | &key->dst, sizeof(key->dst)); | |
272 | } | |
273 | ||
274 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
275 | struct flow_dissector_key_ports *key = | |
276 | skb_flow_dissector_target(f->dissector, | |
277 | FLOW_DISSECTOR_KEY_PORTS, | |
278 | f->key); | |
279 | struct flow_dissector_key_ports *mask = | |
280 | skb_flow_dissector_target(f->dissector, | |
281 | FLOW_DISSECTOR_KEY_PORTS, | |
282 | f->mask); | |
283 | switch (ip_proto) { | |
284 | case IPPROTO_TCP: | |
285 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
286 | tcp_sport, ntohs(mask->src)); | |
287 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
288 | tcp_sport, ntohs(key->src)); | |
289 | ||
290 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
291 | tcp_dport, ntohs(mask->dst)); | |
292 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
293 | tcp_dport, ntohs(key->dst)); | |
294 | break; | |
295 | ||
296 | case IPPROTO_UDP: | |
297 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
298 | udp_sport, ntohs(mask->src)); | |
299 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
300 | udp_sport, ntohs(key->src)); | |
301 | ||
302 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
303 | udp_dport, ntohs(mask->dst)); | |
304 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
305 | udp_dport, ntohs(key->dst)); | |
306 | break; | |
307 | default: | |
308 | netdev_err(priv->netdev, | |
309 | "Only UDP and TCP transport are supported\n"); | |
310 | return -EINVAL; | |
311 | } | |
312 | } | |
313 | ||
314 | return 0; | |
315 | } | |
316 | ||
5c40348c OG |
317 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
318 | u32 *action, u32 *flow_tag) | |
e3a2b7ed AV |
319 | { |
320 | const struct tc_action *a; | |
22dc13c8 | 321 | LIST_HEAD(actions); |
e3a2b7ed AV |
322 | |
323 | if (tc_no_actions(exts)) | |
324 | return -EINVAL; | |
325 | ||
326 | *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; | |
327 | *action = 0; | |
328 | ||
22dc13c8 WC |
329 | tcf_exts_to_list(exts, &actions); |
330 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed AV |
331 | /* Only support a single action per rule */ |
332 | if (*action) | |
333 | return -EINVAL; | |
334 | ||
335 | if (is_tcf_gact_shot(a)) { | |
336 | *action |= MLX5_FLOW_CONTEXT_ACTION_DROP; | |
aad7e08d AV |
337 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
338 | flow_table_properties_nic_receive.flow_counter)) | |
339 | *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
e3a2b7ed AV |
340 | continue; |
341 | } | |
342 | ||
343 | if (is_tcf_skbedit_mark(a)) { | |
344 | u32 mark = tcf_skbedit_mark(a); | |
345 | ||
346 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
347 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
348 | mark); | |
349 | return -EINVAL; | |
350 | } | |
351 | ||
352 | *flow_tag = mark; | |
353 | *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
354 | continue; | |
355 | } | |
356 | ||
357 | return -EINVAL; | |
358 | } | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
03a9d11e OG |
363 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
364 | u32 *action, u32 *dest_vport) | |
365 | { | |
366 | const struct tc_action *a; | |
22dc13c8 | 367 | LIST_HEAD(actions); |
03a9d11e OG |
368 | |
369 | if (tc_no_actions(exts)) | |
370 | return -EINVAL; | |
371 | ||
372 | *action = 0; | |
373 | ||
22dc13c8 WC |
374 | tcf_exts_to_list(exts, &actions); |
375 | list_for_each_entry(a, &actions, list) { | |
03a9d11e OG |
376 | /* Only support a single action per rule */ |
377 | if (*action) | |
378 | return -EINVAL; | |
379 | ||
380 | if (is_tcf_gact_shot(a)) { | |
381 | *action = MLX5_FLOW_CONTEXT_ACTION_DROP | | |
382 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
383 | continue; | |
384 | } | |
385 | ||
386 | if (is_tcf_mirred_redirect(a)) { | |
387 | int ifindex = tcf_mirred_ifindex(a); | |
388 | struct net_device *out_dev; | |
389 | struct mlx5e_priv *out_priv; | |
390 | struct mlx5_eswitch_rep *out_rep; | |
391 | ||
392 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
393 | ||
394 | if (!switchdev_port_same_parent_id(priv->netdev, out_dev)) { | |
395 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", | |
396 | priv->netdev->name, out_dev->name); | |
397 | return -EINVAL; | |
398 | } | |
399 | ||
400 | out_priv = netdev_priv(out_dev); | |
401 | out_rep = out_priv->ppriv; | |
402 | if (out_rep->vport == 0) | |
403 | *dest_vport = FDB_UPLINK_VPORT; | |
404 | else | |
405 | *dest_vport = out_rep->vport; | |
406 | *action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
407 | continue; | |
408 | } | |
409 | ||
410 | return -EINVAL; | |
411 | } | |
412 | return 0; | |
413 | } | |
414 | ||
e3a2b7ed AV |
415 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
416 | struct tc_cls_flower_offload *f) | |
417 | { | |
acff797c | 418 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed | 419 | int err = 0; |
adb4c123 | 420 | u32 flow_tag, action, dest_vport = 0; |
e3a2b7ed | 421 | struct mlx5e_tc_flow *flow; |
c5bb1730 | 422 | struct mlx5_flow_spec *spec; |
e3a2b7ed | 423 | struct mlx5_flow_rule *old = NULL; |
adb4c123 | 424 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
e3a2b7ed AV |
425 | |
426 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
427 | tc->ht_params); | |
428 | if (flow) | |
429 | old = flow->rule; | |
430 | else | |
431 | flow = kzalloc(sizeof(*flow), GFP_KERNEL); | |
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 | ||
adb4c123 OG |
445 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
446 | err = parse_tc_fdb_actions(priv, f->exts, &action, &dest_vport); | |
447 | if (err < 0) | |
448 | goto err_free; | |
449 | flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, action, dest_vport); | |
450 | } else { | |
451 | err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag); | |
452 | if (err < 0) | |
453 | goto err_free; | |
454 | flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag); | |
455 | } | |
e3a2b7ed | 456 | |
e3a2b7ed AV |
457 | if (IS_ERR(flow->rule)) { |
458 | err = PTR_ERR(flow->rule); | |
5c40348c | 459 | goto err_free; |
e3a2b7ed AV |
460 | } |
461 | ||
5c40348c OG |
462 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
463 | tc->ht_params); | |
464 | if (err) | |
465 | goto err_del_rule; | |
466 | ||
e3a2b7ed AV |
467 | if (old) |
468 | mlx5e_tc_del_flow(priv, old); | |
469 | ||
470 | goto out; | |
471 | ||
5c40348c OG |
472 | err_del_rule: |
473 | mlx5_del_flow_rule(flow->rule); | |
e3a2b7ed AV |
474 | |
475 | err_free: | |
476 | if (!old) | |
477 | kfree(flow); | |
478 | out: | |
c5bb1730 | 479 | kvfree(spec); |
e3a2b7ed AV |
480 | return err; |
481 | } | |
482 | ||
483 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
484 | struct tc_cls_flower_offload *f) | |
485 | { | |
486 | struct mlx5e_tc_flow *flow; | |
acff797c | 487 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
488 | |
489 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
490 | tc->ht_params); | |
491 | if (!flow) | |
492 | return -EINVAL; | |
493 | ||
494 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
495 | ||
496 | mlx5e_tc_del_flow(priv, flow->rule); | |
497 | ||
498 | kfree(flow); | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
aad7e08d AV |
503 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
504 | struct tc_cls_flower_offload *f) | |
505 | { | |
506 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
507 | struct mlx5e_tc_flow *flow; | |
508 | struct tc_action *a; | |
509 | struct mlx5_fc *counter; | |
22dc13c8 | 510 | LIST_HEAD(actions); |
aad7e08d AV |
511 | u64 bytes; |
512 | u64 packets; | |
513 | u64 lastuse; | |
514 | ||
515 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
516 | tc->ht_params); | |
517 | if (!flow) | |
518 | return -EINVAL; | |
519 | ||
520 | counter = mlx5_flow_rule_counter(flow->rule); | |
521 | if (!counter) | |
522 | return 0; | |
523 | ||
524 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
525 | ||
22dc13c8 WC |
526 | tcf_exts_to_list(f->exts, &actions); |
527 | list_for_each_entry(a, &actions, list) | |
aad7e08d AV |
528 | tcf_action_stats_update(a, bytes, packets, lastuse); |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
e8f887ac AV |
533 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
534 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
535 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
536 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
537 | .automatic_shrinking = true, | |
538 | }; | |
539 | ||
540 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
541 | { | |
acff797c | 542 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
543 | |
544 | tc->ht_params = mlx5e_tc_flow_ht_params; | |
545 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
546 | } | |
547 | ||
548 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
549 | { | |
550 | struct mlx5e_tc_flow *flow = ptr; | |
551 | struct mlx5e_priv *priv = arg; | |
552 | ||
553 | mlx5e_tc_del_flow(priv, flow->rule); | |
554 | kfree(flow); | |
555 | } | |
556 | ||
557 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
558 | { | |
acff797c | 559 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
560 | |
561 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
562 | ||
acff797c MG |
563 | if (!IS_ERR_OR_NULL(tc->t)) { |
564 | mlx5_destroy_flow_table(tc->t); | |
565 | tc->t = NULL; | |
e8f887ac AV |
566 | } |
567 | } |