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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 | 50 | |
65ba8fb7 OG |
51 | enum { |
52 | MLX5E_TC_FLOW_ESWITCH = BIT(0), | |
53 | }; | |
54 | ||
e8f887ac AV |
55 | struct mlx5e_tc_flow { |
56 | struct rhash_head node; | |
57 | u64 cookie; | |
65ba8fb7 | 58 | u8 flags; |
74491de9 | 59 | struct mlx5_flow_handle *rule; |
a54e20b4 | 60 | struct list_head encap; /* flows sharing the same encap */ |
776b12b6 | 61 | struct mlx5_esw_flow_attr *attr; |
e8f887ac AV |
62 | }; |
63 | ||
a54e20b4 HHZ |
64 | enum { |
65 | MLX5_HEADER_TYPE_VXLAN = 0x0, | |
66 | MLX5_HEADER_TYPE_NVGRE = 0x1, | |
67 | }; | |
68 | ||
acff797c MG |
69 | #define MLX5E_TC_TABLE_NUM_ENTRIES 1024 |
70 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 | |
e8f887ac | 71 | |
74491de9 MB |
72 | static struct mlx5_flow_handle * |
73 | mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, | |
74 | struct mlx5_flow_spec *spec, | |
75 | u32 action, u32 flow_tag) | |
e8f887ac | 76 | { |
aad7e08d AV |
77 | struct mlx5_core_dev *dev = priv->mdev; |
78 | struct mlx5_flow_destination dest = { 0 }; | |
66958ed9 HHZ |
79 | struct mlx5_flow_act flow_act = { |
80 | .action = action, | |
81 | .flow_tag = flow_tag, | |
82 | .encap_id = 0, | |
83 | }; | |
aad7e08d | 84 | struct mlx5_fc *counter = NULL; |
74491de9 | 85 | struct mlx5_flow_handle *rule; |
e8f887ac AV |
86 | bool table_created = false; |
87 | ||
aad7e08d AV |
88 | if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
89 | dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
90 | dest.ft = priv->fs.vlan.ft.t; | |
55130287 | 91 | } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
aad7e08d AV |
92 | counter = mlx5_fc_create(dev, true); |
93 | if (IS_ERR(counter)) | |
94 | return ERR_CAST(counter); | |
95 | ||
96 | dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
97 | dest.counter = counter; | |
98 | } | |
99 | ||
acff797c MG |
100 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
101 | priv->fs.tc.t = | |
102 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
103 | MLX5E_TC_PRIO, | |
104 | MLX5E_TC_TABLE_NUM_ENTRIES, | |
105 | MLX5E_TC_TABLE_NUM_GROUPS, | |
c9f1b073 | 106 | 0, 0); |
acff797c | 107 | if (IS_ERR(priv->fs.tc.t)) { |
e8f887ac AV |
108 | netdev_err(priv->netdev, |
109 | "Failed to create tc offload table\n"); | |
aad7e08d AV |
110 | rule = ERR_CAST(priv->fs.tc.t); |
111 | goto err_create_ft; | |
e8f887ac AV |
112 | } |
113 | ||
114 | table_created = true; | |
115 | } | |
116 | ||
c5bb1730 | 117 | spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; |
66958ed9 | 118 | rule = mlx5_add_flow_rules(priv->fs.tc.t, spec, &flow_act, &dest, 1); |
aad7e08d AV |
119 | |
120 | if (IS_ERR(rule)) | |
121 | goto err_add_rule; | |
122 | ||
123 | return rule; | |
e8f887ac | 124 | |
aad7e08d AV |
125 | err_add_rule: |
126 | if (table_created) { | |
acff797c MG |
127 | mlx5_destroy_flow_table(priv->fs.tc.t); |
128 | priv->fs.tc.t = NULL; | |
e8f887ac | 129 | } |
aad7e08d AV |
130 | err_create_ft: |
131 | mlx5_fc_destroy(dev, counter); | |
e8f887ac AV |
132 | |
133 | return rule; | |
134 | } | |
135 | ||
74491de9 MB |
136 | static struct mlx5_flow_handle * |
137 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, | |
138 | struct mlx5_flow_spec *spec, | |
139 | struct mlx5_esw_flow_attr *attr) | |
adb4c123 OG |
140 | { |
141 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
8b32580d OG |
142 | int err; |
143 | ||
144 | err = mlx5_eswitch_add_vlan_action(esw, attr); | |
145 | if (err) | |
146 | return ERR_PTR(err); | |
adb4c123 | 147 | |
776b12b6 | 148 | return mlx5_eswitch_add_offloaded_rule(esw, spec, attr); |
adb4c123 OG |
149 | } |
150 | ||
5067b602 RD |
151 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
152 | struct mlx5e_tc_flow *flow) { | |
153 | struct list_head *next = flow->encap.next; | |
154 | ||
155 | list_del(&flow->encap); | |
156 | if (list_empty(next)) { | |
157 | struct mlx5_encap_entry *e; | |
158 | ||
159 | e = list_entry(next, struct mlx5_encap_entry, flows); | |
160 | if (e->n) { | |
161 | mlx5_encap_dealloc(priv->mdev, e->encap_id); | |
162 | neigh_release(e->n); | |
163 | } | |
164 | hlist_del_rcu(&e->encap_hlist); | |
165 | kfree(e); | |
166 | } | |
167 | } | |
168 | ||
5e86397a OG |
169 | /* we get here also when setting rule to the FW failed, etc. It means that the |
170 | * flow rule itself might not exist, but some offloading related to the actions | |
171 | * should be cleaned. | |
172 | */ | |
e8f887ac | 173 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 174 | struct mlx5e_tc_flow *flow) |
e8f887ac | 175 | { |
8b32580d | 176 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
aad7e08d AV |
177 | struct mlx5_fc *counter = NULL; |
178 | ||
5e86397a OG |
179 | if (!IS_ERR(flow->rule)) { |
180 | counter = mlx5_flow_rule_counter(flow->rule); | |
181 | mlx5_del_flow_rules(flow->rule); | |
182 | mlx5_fc_destroy(priv->mdev, counter); | |
183 | } | |
86a33ae1 | 184 | |
65ba8fb7 | 185 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
961e8979 | 186 | mlx5_eswitch_del_vlan_action(esw, flow->attr); |
5067b602 RD |
187 | if (flow->attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) |
188 | mlx5e_detach_encap(priv, flow); | |
189 | } | |
8b32580d | 190 | |
5c40348c | 191 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { |
acff797c MG |
192 | mlx5_destroy_flow_table(priv->fs.tc.t); |
193 | priv->fs.tc.t = NULL; | |
e8f887ac AV |
194 | } |
195 | } | |
196 | ||
bbd00f7e HHZ |
197 | static void parse_vxlan_attr(struct mlx5_flow_spec *spec, |
198 | struct tc_cls_flower_offload *f) | |
199 | { | |
200 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
201 | outer_headers); | |
202 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
203 | outer_headers); | |
204 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
205 | misc_parameters); | |
206 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
207 | misc_parameters); | |
208 | ||
209 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol); | |
210 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP); | |
211 | ||
212 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) { | |
213 | struct flow_dissector_key_keyid *key = | |
214 | skb_flow_dissector_target(f->dissector, | |
215 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
216 | f->key); | |
217 | struct flow_dissector_key_keyid *mask = | |
218 | skb_flow_dissector_target(f->dissector, | |
219 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
220 | f->mask); | |
221 | MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni, | |
222 | be32_to_cpu(mask->keyid)); | |
223 | MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni, | |
224 | be32_to_cpu(key->keyid)); | |
225 | } | |
226 | } | |
227 | ||
228 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
229 | struct mlx5_flow_spec *spec, | |
230 | struct tc_cls_flower_offload *f) | |
231 | { | |
232 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
233 | outer_headers); | |
234 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
235 | outer_headers); | |
236 | ||
2e72eb43 OG |
237 | struct flow_dissector_key_control *enc_control = |
238 | skb_flow_dissector_target(f->dissector, | |
239 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
240 | f->key); | |
241 | ||
bbd00f7e HHZ |
242 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) { |
243 | struct flow_dissector_key_ports *key = | |
244 | skb_flow_dissector_target(f->dissector, | |
245 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
246 | f->key); | |
247 | struct flow_dissector_key_ports *mask = | |
248 | skb_flow_dissector_target(f->dissector, | |
249 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
250 | f->mask); | |
251 | ||
252 | /* Full udp dst port must be given */ | |
253 | if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst))) | |
2fcd82e9 | 254 | goto vxlan_match_offload_err; |
bbd00f7e | 255 | |
bbd00f7e HHZ |
256 | if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->dst)) && |
257 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) | |
258 | parse_vxlan_attr(spec, f); | |
2fcd82e9 OG |
259 | else { |
260 | netdev_warn(priv->netdev, | |
261 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst)); | |
bbd00f7e | 262 | return -EOPNOTSUPP; |
2fcd82e9 | 263 | } |
bbd00f7e HHZ |
264 | |
265 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
266 | udp_dport, ntohs(mask->dst)); | |
267 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
268 | udp_dport, ntohs(key->dst)); | |
269 | ||
cd377663 OG |
270 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
271 | udp_sport, ntohs(mask->src)); | |
272 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
273 | udp_sport, ntohs(key->src)); | |
bbd00f7e | 274 | } else { /* udp dst port must be given */ |
2fcd82e9 OG |
275 | vxlan_match_offload_err: |
276 | netdev_warn(priv->netdev, | |
277 | "IP tunnel decap offload supported only for vxlan, must set UDP dport\n"); | |
278 | return -EOPNOTSUPP; | |
bbd00f7e HHZ |
279 | } |
280 | ||
2e72eb43 | 281 | if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
bbd00f7e HHZ |
282 | struct flow_dissector_key_ipv4_addrs *key = |
283 | skb_flow_dissector_target(f->dissector, | |
284 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
285 | f->key); | |
286 | struct flow_dissector_key_ipv4_addrs *mask = | |
287 | skb_flow_dissector_target(f->dissector, | |
288 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
289 | f->mask); | |
290 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
291 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
292 | ntohl(mask->src)); | |
293 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
294 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
295 | ntohl(key->src)); | |
296 | ||
297 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
298 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
299 | ntohl(mask->dst)); | |
300 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
301 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
302 | ntohl(key->dst)); | |
bbd00f7e | 303 | |
2e72eb43 OG |
304 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); |
305 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
19f44401 OG |
306 | } else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { |
307 | struct flow_dissector_key_ipv6_addrs *key = | |
308 | skb_flow_dissector_target(f->dissector, | |
309 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
310 | f->key); | |
311 | struct flow_dissector_key_ipv6_addrs *mask = | |
312 | skb_flow_dissector_target(f->dissector, | |
313 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
314 | f->mask); | |
315 | ||
316 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
317 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
318 | &mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
319 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
320 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
321 | &key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
322 | ||
323 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
324 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
325 | &mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
326 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
327 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
328 | &key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
329 | ||
330 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
331 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); | |
2e72eb43 | 332 | } |
bbd00f7e HHZ |
333 | |
334 | /* Enforce DMAC when offloading incoming tunneled flows. | |
335 | * Flow counters require a match on the DMAC. | |
336 | */ | |
337 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
338 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
339 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
340 | dmac_47_16), priv->netdev->dev_addr); | |
341 | ||
342 | /* let software handle IP fragments */ | |
343 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
344 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
de0af0bf RD |
349 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
350 | struct mlx5_flow_spec *spec, | |
351 | struct tc_cls_flower_offload *f, | |
352 | u8 *min_inline) | |
e3a2b7ed | 353 | { |
c5bb1730 MG |
354 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
355 | outer_headers); | |
356 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
357 | outer_headers); | |
e3a2b7ed AV |
358 | u16 addr_type = 0; |
359 | u8 ip_proto = 0; | |
360 | ||
de0af0bf RD |
361 | *min_inline = MLX5_INLINE_MODE_L2; |
362 | ||
e3a2b7ed AV |
363 | if (f->dissector->used_keys & |
364 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
365 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
366 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 367 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
e3a2b7ed AV |
368 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
369 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
370 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
371 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
372 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
373 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
374 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
375 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL))) { | |
e3a2b7ed AV |
376 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
377 | f->dissector->used_keys); | |
378 | return -EOPNOTSUPP; | |
379 | } | |
380 | ||
bbd00f7e HHZ |
381 | if ((dissector_uses_key(f->dissector, |
382 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || | |
383 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || | |
384 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && | |
385 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { | |
386 | struct flow_dissector_key_control *key = | |
387 | skb_flow_dissector_target(f->dissector, | |
388 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
389 | f->key); | |
390 | switch (key->addr_type) { | |
391 | case FLOW_DISSECTOR_KEY_IPV4_ADDRS: | |
19f44401 | 392 | case FLOW_DISSECTOR_KEY_IPV6_ADDRS: |
bbd00f7e HHZ |
393 | if (parse_tunnel_attr(priv, spec, f)) |
394 | return -EOPNOTSUPP; | |
395 | break; | |
396 | default: | |
397 | return -EOPNOTSUPP; | |
398 | } | |
399 | ||
400 | /* In decap flow, header pointers should point to the inner | |
401 | * headers, outer header were already set by parse_tunnel_attr | |
402 | */ | |
403 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
404 | inner_headers); | |
405 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
406 | inner_headers); | |
407 | } | |
408 | ||
e3a2b7ed AV |
409 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { |
410 | struct flow_dissector_key_control *key = | |
411 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 412 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed | 413 | f->key); |
3f7d0eb4 OG |
414 | |
415 | struct flow_dissector_key_control *mask = | |
416 | skb_flow_dissector_target(f->dissector, | |
417 | FLOW_DISSECTOR_KEY_CONTROL, | |
418 | f->mask); | |
e3a2b7ed | 419 | addr_type = key->addr_type; |
3f7d0eb4 OG |
420 | |
421 | if (mask->flags & FLOW_DIS_IS_FRAGMENT) { | |
422 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
423 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
424 | key->flags & FLOW_DIS_IS_FRAGMENT); | |
0827444d OG |
425 | |
426 | /* the HW doesn't need L3 inline to match on frag=no */ | |
427 | if (key->flags & FLOW_DIS_IS_FRAGMENT) | |
428 | *min_inline = MLX5_INLINE_MODE_IP; | |
3f7d0eb4 | 429 | } |
e3a2b7ed AV |
430 | } |
431 | ||
432 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
433 | struct flow_dissector_key_basic *key = | |
434 | skb_flow_dissector_target(f->dissector, | |
435 | FLOW_DISSECTOR_KEY_BASIC, | |
436 | f->key); | |
437 | struct flow_dissector_key_basic *mask = | |
438 | skb_flow_dissector_target(f->dissector, | |
439 | FLOW_DISSECTOR_KEY_BASIC, | |
440 | f->mask); | |
441 | ip_proto = key->ip_proto; | |
442 | ||
443 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
444 | ntohs(mask->n_proto)); | |
445 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
446 | ntohs(key->n_proto)); | |
447 | ||
448 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
449 | mask->ip_proto); | |
450 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
451 | key->ip_proto); | |
de0af0bf RD |
452 | |
453 | if (mask->ip_proto) | |
454 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
455 | } |
456 | ||
457 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
458 | struct flow_dissector_key_eth_addrs *key = | |
459 | skb_flow_dissector_target(f->dissector, | |
460 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
461 | f->key); | |
462 | struct flow_dissector_key_eth_addrs *mask = | |
463 | skb_flow_dissector_target(f->dissector, | |
464 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
465 | f->mask); | |
466 | ||
467 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
468 | dmac_47_16), | |
469 | mask->dst); | |
470 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
471 | dmac_47_16), | |
472 | key->dst); | |
473 | ||
474 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
475 | smac_47_16), | |
476 | mask->src); | |
477 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
478 | smac_47_16), | |
479 | key->src); | |
480 | } | |
481 | ||
095b6cfd OG |
482 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { |
483 | struct flow_dissector_key_vlan *key = | |
484 | skb_flow_dissector_target(f->dissector, | |
485 | FLOW_DISSECTOR_KEY_VLAN, | |
486 | f->key); | |
487 | struct flow_dissector_key_vlan *mask = | |
488 | skb_flow_dissector_target(f->dissector, | |
489 | FLOW_DISSECTOR_KEY_VLAN, | |
490 | f->mask); | |
358d79a4 | 491 | if (mask->vlan_id || mask->vlan_priority) { |
10543365 MHY |
492 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); |
493 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); | |
095b6cfd OG |
494 | |
495 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); | |
496 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); | |
358d79a4 OG |
497 | |
498 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); | |
499 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); | |
095b6cfd OG |
500 | } |
501 | } | |
502 | ||
e3a2b7ed AV |
503 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
504 | struct flow_dissector_key_ipv4_addrs *key = | |
505 | skb_flow_dissector_target(f->dissector, | |
506 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
507 | f->key); | |
508 | struct flow_dissector_key_ipv4_addrs *mask = | |
509 | skb_flow_dissector_target(f->dissector, | |
510 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
511 | f->mask); | |
512 | ||
513 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
514 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
515 | &mask->src, sizeof(mask->src)); | |
516 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
517 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
518 | &key->src, sizeof(key->src)); | |
519 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
520 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
521 | &mask->dst, sizeof(mask->dst)); | |
522 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
523 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
524 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
525 | |
526 | if (mask->src || mask->dst) | |
527 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
528 | } |
529 | ||
530 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
531 | struct flow_dissector_key_ipv6_addrs *key = | |
532 | skb_flow_dissector_target(f->dissector, | |
533 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
534 | f->key); | |
535 | struct flow_dissector_key_ipv6_addrs *mask = | |
536 | skb_flow_dissector_target(f->dissector, | |
537 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
538 | f->mask); | |
539 | ||
540 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
541 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
542 | &mask->src, sizeof(mask->src)); | |
543 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
544 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
545 | &key->src, sizeof(key->src)); | |
546 | ||
547 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
548 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
549 | &mask->dst, sizeof(mask->dst)); | |
550 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
551 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
552 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
553 | |
554 | if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || | |
555 | ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) | |
556 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
557 | } |
558 | ||
559 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
560 | struct flow_dissector_key_ports *key = | |
561 | skb_flow_dissector_target(f->dissector, | |
562 | FLOW_DISSECTOR_KEY_PORTS, | |
563 | f->key); | |
564 | struct flow_dissector_key_ports *mask = | |
565 | skb_flow_dissector_target(f->dissector, | |
566 | FLOW_DISSECTOR_KEY_PORTS, | |
567 | f->mask); | |
568 | switch (ip_proto) { | |
569 | case IPPROTO_TCP: | |
570 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
571 | tcp_sport, ntohs(mask->src)); | |
572 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
573 | tcp_sport, ntohs(key->src)); | |
574 | ||
575 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
576 | tcp_dport, ntohs(mask->dst)); | |
577 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
578 | tcp_dport, ntohs(key->dst)); | |
579 | break; | |
580 | ||
581 | case IPPROTO_UDP: | |
582 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
583 | udp_sport, ntohs(mask->src)); | |
584 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
585 | udp_sport, ntohs(key->src)); | |
586 | ||
587 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
588 | udp_dport, ntohs(mask->dst)); | |
589 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
590 | udp_dport, ntohs(key->dst)); | |
591 | break; | |
592 | default: | |
593 | netdev_err(priv->netdev, | |
594 | "Only UDP and TCP transport are supported\n"); | |
595 | return -EINVAL; | |
596 | } | |
de0af0bf RD |
597 | |
598 | if (mask->src || mask->dst) | |
599 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
e3a2b7ed AV |
600 | } |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
de0af0bf | 605 | static int parse_cls_flower(struct mlx5e_priv *priv, |
65ba8fb7 | 606 | struct mlx5e_tc_flow *flow, |
de0af0bf RD |
607 | struct mlx5_flow_spec *spec, |
608 | struct tc_cls_flower_offload *f) | |
609 | { | |
610 | struct mlx5_core_dev *dev = priv->mdev; | |
611 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
612 | struct mlx5_eswitch_rep *rep = priv->ppriv; | |
613 | u8 min_inline; | |
614 | int err; | |
615 | ||
616 | err = __parse_cls_flower(priv, spec, f, &min_inline); | |
617 | ||
65ba8fb7 | 618 | if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH) && |
de0af0bf RD |
619 | rep->vport != FDB_UPLINK_VPORT) { |
620 | if (min_inline > esw->offloads.inline_mode) { | |
621 | netdev_warn(priv->netdev, | |
622 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
623 | min_inline, esw->offloads.inline_mode); | |
624 | return -EOPNOTSUPP; | |
625 | } | |
626 | } | |
627 | ||
628 | return err; | |
629 | } | |
630 | ||
5c40348c OG |
631 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
632 | u32 *action, u32 *flow_tag) | |
e3a2b7ed AV |
633 | { |
634 | const struct tc_action *a; | |
22dc13c8 | 635 | LIST_HEAD(actions); |
e3a2b7ed AV |
636 | |
637 | if (tc_no_actions(exts)) | |
638 | return -EINVAL; | |
639 | ||
640 | *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; | |
641 | *action = 0; | |
642 | ||
22dc13c8 WC |
643 | tcf_exts_to_list(exts, &actions); |
644 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed AV |
645 | /* Only support a single action per rule */ |
646 | if (*action) | |
647 | return -EINVAL; | |
648 | ||
649 | if (is_tcf_gact_shot(a)) { | |
650 | *action |= MLX5_FLOW_CONTEXT_ACTION_DROP; | |
aad7e08d AV |
651 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
652 | flow_table_properties_nic_receive.flow_counter)) | |
653 | *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
e3a2b7ed AV |
654 | continue; |
655 | } | |
656 | ||
657 | if (is_tcf_skbedit_mark(a)) { | |
658 | u32 mark = tcf_skbedit_mark(a); | |
659 | ||
660 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
661 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
662 | mark); | |
663 | return -EINVAL; | |
664 | } | |
665 | ||
666 | *flow_tag = mark; | |
667 | *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
668 | continue; | |
669 | } | |
670 | ||
671 | return -EINVAL; | |
672 | } | |
673 | ||
674 | return 0; | |
675 | } | |
676 | ||
76f7444d OG |
677 | static inline int cmp_encap_info(struct ip_tunnel_key *a, |
678 | struct ip_tunnel_key *b) | |
a54e20b4 HHZ |
679 | { |
680 | return memcmp(a, b, sizeof(*a)); | |
681 | } | |
682 | ||
76f7444d | 683 | static inline int hash_encap_info(struct ip_tunnel_key *key) |
a54e20b4 | 684 | { |
76f7444d | 685 | return jhash(key, sizeof(*key), 0); |
a54e20b4 HHZ |
686 | } |
687 | ||
688 | static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, | |
689 | struct net_device *mirred_dev, | |
690 | struct net_device **out_dev, | |
691 | struct flowi4 *fl4, | |
692 | struct neighbour **out_n, | |
a54e20b4 HHZ |
693 | int *out_ttl) |
694 | { | |
3e621b19 | 695 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
a54e20b4 HHZ |
696 | struct rtable *rt; |
697 | struct neighbour *n = NULL; | |
a54e20b4 HHZ |
698 | |
699 | #if IS_ENABLED(CONFIG_INET) | |
abeffce9 AB |
700 | int ret; |
701 | ||
a54e20b4 | 702 | rt = ip_route_output_key(dev_net(mirred_dev), fl4); |
abeffce9 AB |
703 | ret = PTR_ERR_OR_ZERO(rt); |
704 | if (ret) | |
705 | return ret; | |
a54e20b4 HHZ |
706 | #else |
707 | return -EOPNOTSUPP; | |
708 | #endif | |
3e621b19 HHZ |
709 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ |
710 | if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) | |
711 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
712 | else | |
713 | *out_dev = rt->dst.dev; | |
a54e20b4 | 714 | |
75c33da8 | 715 | *out_ttl = ip4_dst_hoplimit(&rt->dst); |
a54e20b4 HHZ |
716 | n = dst_neigh_lookup(&rt->dst, &fl4->daddr); |
717 | ip_rt_put(rt); | |
718 | if (!n) | |
719 | return -ENOMEM; | |
720 | ||
721 | *out_n = n; | |
a54e20b4 HHZ |
722 | return 0; |
723 | } | |
724 | ||
ce99f6b9 OG |
725 | static int mlx5e_route_lookup_ipv6(struct mlx5e_priv *priv, |
726 | struct net_device *mirred_dev, | |
727 | struct net_device **out_dev, | |
728 | struct flowi6 *fl6, | |
729 | struct neighbour **out_n, | |
730 | int *out_ttl) | |
731 | { | |
732 | struct neighbour *n = NULL; | |
733 | struct dst_entry *dst; | |
734 | ||
735 | #if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6) | |
736 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
737 | int ret; | |
738 | ||
739 | dst = ip6_route_output(dev_net(mirred_dev), NULL, fl6); | |
321fa4ff AB |
740 | ret = dst->error; |
741 | if (ret) { | |
ce99f6b9 OG |
742 | dst_release(dst); |
743 | return ret; | |
744 | } | |
745 | ||
746 | *out_ttl = ip6_dst_hoplimit(dst); | |
747 | ||
748 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ | |
749 | if (!switchdev_port_same_parent_id(priv->netdev, dst->dev)) | |
750 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
751 | else | |
752 | *out_dev = dst->dev; | |
753 | #else | |
754 | return -EOPNOTSUPP; | |
755 | #endif | |
756 | ||
757 | n = dst_neigh_lookup(dst, &fl6->daddr); | |
758 | dst_release(dst); | |
759 | if (!n) | |
760 | return -ENOMEM; | |
761 | ||
762 | *out_n = n; | |
763 | return 0; | |
764 | } | |
765 | ||
a54e20b4 HHZ |
766 | static int gen_vxlan_header_ipv4(struct net_device *out_dev, |
767 | char buf[], | |
768 | unsigned char h_dest[ETH_ALEN], | |
769 | int ttl, | |
770 | __be32 daddr, | |
771 | __be32 saddr, | |
772 | __be16 udp_dst_port, | |
773 | __be32 vx_vni) | |
774 | { | |
775 | int encap_size = VXLAN_HLEN + sizeof(struct iphdr) + ETH_HLEN; | |
776 | struct ethhdr *eth = (struct ethhdr *)buf; | |
777 | struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr)); | |
778 | struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr)); | |
779 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
780 | ||
781 | memset(buf, 0, encap_size); | |
782 | ||
783 | ether_addr_copy(eth->h_dest, h_dest); | |
784 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
785 | eth->h_proto = htons(ETH_P_IP); | |
786 | ||
787 | ip->daddr = daddr; | |
788 | ip->saddr = saddr; | |
789 | ||
790 | ip->ttl = ttl; | |
791 | ip->protocol = IPPROTO_UDP; | |
792 | ip->version = 0x4; | |
793 | ip->ihl = 0x5; | |
794 | ||
795 | udp->dest = udp_dst_port; | |
796 | vxh->vx_flags = VXLAN_HF_VNI; | |
797 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
798 | ||
799 | return encap_size; | |
800 | } | |
801 | ||
ce99f6b9 OG |
802 | static int gen_vxlan_header_ipv6(struct net_device *out_dev, |
803 | char buf[], | |
804 | unsigned char h_dest[ETH_ALEN], | |
805 | int ttl, | |
806 | struct in6_addr *daddr, | |
807 | struct in6_addr *saddr, | |
808 | __be16 udp_dst_port, | |
809 | __be32 vx_vni) | |
810 | { | |
811 | int encap_size = VXLAN_HLEN + sizeof(struct ipv6hdr) + ETH_HLEN; | |
812 | struct ethhdr *eth = (struct ethhdr *)buf; | |
813 | struct ipv6hdr *ip6h = (struct ipv6hdr *)((char *)eth + sizeof(struct ethhdr)); | |
814 | struct udphdr *udp = (struct udphdr *)((char *)ip6h + sizeof(struct ipv6hdr)); | |
815 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
816 | ||
817 | memset(buf, 0, encap_size); | |
818 | ||
819 | ether_addr_copy(eth->h_dest, h_dest); | |
820 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
821 | eth->h_proto = htons(ETH_P_IPV6); | |
822 | ||
823 | ip6_flow_hdr(ip6h, 0, 0); | |
824 | /* the HW fills up ipv6 payload len */ | |
825 | ip6h->nexthdr = IPPROTO_UDP; | |
826 | ip6h->hop_limit = ttl; | |
827 | ip6h->daddr = *daddr; | |
828 | ip6h->saddr = *saddr; | |
829 | ||
830 | udp->dest = udp_dst_port; | |
831 | vxh->vx_flags = VXLAN_HF_VNI; | |
832 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
833 | ||
834 | return encap_size; | |
835 | } | |
836 | ||
a54e20b4 HHZ |
837 | static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, |
838 | struct net_device *mirred_dev, | |
839 | struct mlx5_encap_entry *e, | |
840 | struct net_device **out_dev) | |
841 | { | |
842 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
76f7444d | 843 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
9a941117 | 844 | int encap_size, ttl, err; |
a42485eb | 845 | struct neighbour *n = NULL; |
a54e20b4 | 846 | struct flowi4 fl4 = {}; |
a54e20b4 | 847 | char *encap_header; |
a54e20b4 HHZ |
848 | |
849 | encap_header = kzalloc(max_encap_size, GFP_KERNEL); | |
850 | if (!encap_header) | |
851 | return -ENOMEM; | |
852 | ||
853 | switch (e->tunnel_type) { | |
854 | case MLX5_HEADER_TYPE_VXLAN: | |
855 | fl4.flowi4_proto = IPPROTO_UDP; | |
76f7444d | 856 | fl4.fl4_dport = tun_key->tp_dst; |
a54e20b4 HHZ |
857 | break; |
858 | default: | |
859 | err = -EOPNOTSUPP; | |
860 | goto out; | |
861 | } | |
9a941117 | 862 | fl4.flowi4_tos = tun_key->tos; |
76f7444d | 863 | fl4.daddr = tun_key->u.ipv4.dst; |
9a941117 | 864 | fl4.saddr = tun_key->u.ipv4.src; |
a54e20b4 HHZ |
865 | |
866 | err = mlx5e_route_lookup_ipv4(priv, mirred_dev, out_dev, | |
9a941117 | 867 | &fl4, &n, &ttl); |
a54e20b4 HHZ |
868 | if (err) |
869 | goto out; | |
870 | ||
a54e20b4 | 871 | if (!(n->nud_state & NUD_VALID)) { |
a42485eb OG |
872 | pr_warn("%s: can't offload, neighbour to %pI4 invalid\n", __func__, &fl4.daddr); |
873 | err = -EOPNOTSUPP; | |
a54e20b4 HHZ |
874 | goto out; |
875 | } | |
876 | ||
75c33da8 OG |
877 | e->n = n; |
878 | e->out_dev = *out_dev; | |
879 | ||
a54e20b4 HHZ |
880 | neigh_ha_snapshot(e->h_dest, n, *out_dev); |
881 | ||
882 | switch (e->tunnel_type) { | |
883 | case MLX5_HEADER_TYPE_VXLAN: | |
884 | encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header, | |
885 | e->h_dest, ttl, | |
9a941117 OG |
886 | fl4.daddr, |
887 | fl4.saddr, tun_key->tp_dst, | |
76f7444d | 888 | tunnel_id_to_key32(tun_key->tun_id)); |
a54e20b4 HHZ |
889 | break; |
890 | default: | |
891 | err = -EOPNOTSUPP; | |
892 | goto out; | |
893 | } | |
894 | ||
895 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
896 | encap_size, encap_header, &e->encap_id); | |
897 | out: | |
a42485eb OG |
898 | if (err && n) |
899 | neigh_release(n); | |
a54e20b4 HHZ |
900 | kfree(encap_header); |
901 | return err; | |
902 | } | |
903 | ||
ce99f6b9 OG |
904 | static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, |
905 | struct net_device *mirred_dev, | |
906 | struct mlx5_encap_entry *e, | |
907 | struct net_device **out_dev) | |
908 | ||
909 | { | |
910 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
911 | struct ip_tunnel_key *tun_key = &e->tun_info.key; | |
912 | int encap_size, err, ttl = 0; | |
913 | struct neighbour *n = NULL; | |
914 | struct flowi6 fl6 = {}; | |
915 | char *encap_header; | |
916 | ||
917 | encap_header = kzalloc(max_encap_size, GFP_KERNEL); | |
918 | if (!encap_header) | |
919 | return -ENOMEM; | |
920 | ||
921 | switch (e->tunnel_type) { | |
922 | case MLX5_HEADER_TYPE_VXLAN: | |
923 | fl6.flowi6_proto = IPPROTO_UDP; | |
924 | fl6.fl6_dport = tun_key->tp_dst; | |
925 | break; | |
926 | default: | |
927 | err = -EOPNOTSUPP; | |
928 | goto out; | |
929 | } | |
930 | ||
931 | fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label); | |
932 | fl6.daddr = tun_key->u.ipv6.dst; | |
933 | fl6.saddr = tun_key->u.ipv6.src; | |
934 | ||
935 | err = mlx5e_route_lookup_ipv6(priv, mirred_dev, out_dev, | |
936 | &fl6, &n, &ttl); | |
937 | if (err) | |
938 | goto out; | |
939 | ||
940 | if (!(n->nud_state & NUD_VALID)) { | |
941 | pr_warn("%s: can't offload, neighbour to %pI6 invalid\n", __func__, &fl6.daddr); | |
942 | err = -EOPNOTSUPP; | |
943 | goto out; | |
944 | } | |
945 | ||
946 | e->n = n; | |
947 | e->out_dev = *out_dev; | |
948 | ||
949 | neigh_ha_snapshot(e->h_dest, n, *out_dev); | |
950 | ||
951 | switch (e->tunnel_type) { | |
952 | case MLX5_HEADER_TYPE_VXLAN: | |
953 | encap_size = gen_vxlan_header_ipv6(*out_dev, encap_header, | |
954 | e->h_dest, ttl, | |
955 | &fl6.daddr, | |
956 | &fl6.saddr, tun_key->tp_dst, | |
957 | tunnel_id_to_key32(tun_key->tun_id)); | |
958 | break; | |
959 | default: | |
960 | err = -EOPNOTSUPP; | |
961 | goto out; | |
962 | } | |
963 | ||
964 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
965 | encap_size, encap_header, &e->encap_id); | |
966 | out: | |
967 | if (err && n) | |
968 | neigh_release(n); | |
969 | kfree(encap_header); | |
970 | return err; | |
971 | } | |
972 | ||
a54e20b4 HHZ |
973 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
974 | struct ip_tunnel_info *tun_info, | |
975 | struct net_device *mirred_dev, | |
976 | struct mlx5_esw_flow_attr *attr) | |
977 | { | |
978 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
979 | unsigned short family = ip_tunnel_info_af(tun_info); | |
980 | struct ip_tunnel_key *key = &tun_info->key; | |
a54e20b4 HHZ |
981 | struct mlx5_encap_entry *e; |
982 | struct net_device *out_dev; | |
ce99f6b9 | 983 | int tunnel_type, err = -EOPNOTSUPP; |
a54e20b4 HHZ |
984 | uintptr_t hash_key; |
985 | bool found = false; | |
a54e20b4 | 986 | |
2fcd82e9 | 987 | /* udp dst port must be set */ |
a54e20b4 | 988 | if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst))) |
2fcd82e9 | 989 | goto vxlan_encap_offload_err; |
a54e20b4 | 990 | |
cd377663 | 991 | /* setting udp src port isn't supported */ |
2fcd82e9 OG |
992 | if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) { |
993 | vxlan_encap_offload_err: | |
994 | netdev_warn(priv->netdev, | |
995 | "must set udp dst port and not set udp src port\n"); | |
cd377663 | 996 | return -EOPNOTSUPP; |
2fcd82e9 | 997 | } |
cd377663 | 998 | |
a54e20b4 HHZ |
999 | if (mlx5e_vxlan_lookup_port(priv, be16_to_cpu(key->tp_dst)) && |
1000 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) { | |
a54e20b4 HHZ |
1001 | tunnel_type = MLX5_HEADER_TYPE_VXLAN; |
1002 | } else { | |
2fcd82e9 OG |
1003 | netdev_warn(priv->netdev, |
1004 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst)); | |
a54e20b4 HHZ |
1005 | return -EOPNOTSUPP; |
1006 | } | |
1007 | ||
76f7444d | 1008 | hash_key = hash_encap_info(key); |
a54e20b4 HHZ |
1009 | |
1010 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
1011 | encap_hlist, hash_key) { | |
76f7444d | 1012 | if (!cmp_encap_info(&e->tun_info.key, key)) { |
a54e20b4 HHZ |
1013 | found = true; |
1014 | break; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | if (found) { | |
1019 | attr->encap = e; | |
1020 | return 0; | |
1021 | } | |
1022 | ||
1023 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
1024 | if (!e) | |
1025 | return -ENOMEM; | |
1026 | ||
76f7444d | 1027 | e->tun_info = *tun_info; |
a54e20b4 HHZ |
1028 | e->tunnel_type = tunnel_type; |
1029 | INIT_LIST_HEAD(&e->flows); | |
1030 | ||
ce99f6b9 OG |
1031 | if (family == AF_INET) |
1032 | err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e, &out_dev); | |
1033 | else if (family == AF_INET6) | |
1034 | err = mlx5e_create_encap_header_ipv6(priv, mirred_dev, e, &out_dev); | |
1035 | ||
a54e20b4 HHZ |
1036 | if (err) |
1037 | goto out_err; | |
1038 | ||
1039 | attr->encap = e; | |
1040 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); | |
1041 | ||
1042 | return err; | |
1043 | ||
1044 | out_err: | |
1045 | kfree(e); | |
1046 | return err; | |
1047 | } | |
1048 | ||
03a9d11e | 1049 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
a54e20b4 | 1050 | struct mlx5e_tc_flow *flow) |
03a9d11e | 1051 | { |
a54e20b4 HHZ |
1052 | struct mlx5_esw_flow_attr *attr = flow->attr; |
1053 | struct ip_tunnel_info *info = NULL; | |
03a9d11e | 1054 | const struct tc_action *a; |
22dc13c8 | 1055 | LIST_HEAD(actions); |
a54e20b4 HHZ |
1056 | bool encap = false; |
1057 | int err; | |
03a9d11e OG |
1058 | |
1059 | if (tc_no_actions(exts)) | |
1060 | return -EINVAL; | |
1061 | ||
776b12b6 OG |
1062 | memset(attr, 0, sizeof(*attr)); |
1063 | attr->in_rep = priv->ppriv; | |
03a9d11e | 1064 | |
22dc13c8 WC |
1065 | tcf_exts_to_list(exts, &actions); |
1066 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 1067 | if (is_tcf_gact_shot(a)) { |
8b32580d OG |
1068 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
1069 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
1070 | continue; |
1071 | } | |
1072 | ||
5724b8b5 | 1073 | if (is_tcf_mirred_egress_redirect(a)) { |
03a9d11e OG |
1074 | int ifindex = tcf_mirred_ifindex(a); |
1075 | struct net_device *out_dev; | |
1076 | struct mlx5e_priv *out_priv; | |
03a9d11e OG |
1077 | |
1078 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
1079 | ||
a54e20b4 HHZ |
1080 | if (switchdev_port_same_parent_id(priv->netdev, |
1081 | out_dev)) { | |
1082 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1083 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1084 | out_priv = netdev_priv(out_dev); | |
1085 | attr->out_rep = out_priv->ppriv; | |
1086 | } else if (encap) { | |
1087 | err = mlx5e_attach_encap(priv, info, | |
1088 | out_dev, attr); | |
1089 | if (err) | |
1090 | return err; | |
1091 | list_add(&flow->encap, &attr->encap->flows); | |
1092 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | | |
1093 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1094 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1095 | out_priv = netdev_priv(attr->encap->out_dev); | |
1096 | attr->out_rep = out_priv->ppriv; | |
1097 | } else { | |
03a9d11e OG |
1098 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
1099 | priv->netdev->name, out_dev->name); | |
1100 | return -EINVAL; | |
1101 | } | |
a54e20b4 HHZ |
1102 | continue; |
1103 | } | |
03a9d11e | 1104 | |
a54e20b4 HHZ |
1105 | if (is_tcf_tunnel_set(a)) { |
1106 | info = tcf_tunnel_info(a); | |
1107 | if (info) | |
1108 | encap = true; | |
1109 | else | |
1110 | return -EOPNOTSUPP; | |
03a9d11e OG |
1111 | continue; |
1112 | } | |
1113 | ||
8b32580d OG |
1114 | if (is_tcf_vlan(a)) { |
1115 | if (tcf_vlan_action(a) == VLAN_F_POP) { | |
1116 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; | |
1117 | } else if (tcf_vlan_action(a) == VLAN_F_PUSH) { | |
1118 | if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q)) | |
1119 | return -EOPNOTSUPP; | |
1120 | ||
1121 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
1122 | attr->vlan = tcf_vlan_push_vid(a); | |
1123 | } | |
1124 | continue; | |
1125 | } | |
1126 | ||
bbd00f7e HHZ |
1127 | if (is_tcf_tunnel_release(a)) { |
1128 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; | |
1129 | continue; | |
1130 | } | |
1131 | ||
03a9d11e OG |
1132 | return -EINVAL; |
1133 | } | |
1134 | return 0; | |
1135 | } | |
1136 | ||
e3a2b7ed AV |
1137 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
1138 | struct tc_cls_flower_offload *f) | |
1139 | { | |
acff797c | 1140 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
65ba8fb7 | 1141 | int err, attr_size = 0; |
776b12b6 | 1142 | u32 flow_tag, action; |
e3a2b7ed | 1143 | struct mlx5e_tc_flow *flow; |
c5bb1730 | 1144 | struct mlx5_flow_spec *spec; |
adb4c123 | 1145 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
65ba8fb7 | 1146 | u8 flow_flags = 0; |
e3a2b7ed | 1147 | |
65ba8fb7 OG |
1148 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
1149 | flow_flags = MLX5E_TC_FLOW_ESWITCH; | |
1150 | attr_size = sizeof(struct mlx5_esw_flow_attr); | |
1151 | } | |
e3a2b7ed | 1152 | |
65ba8fb7 | 1153 | flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); |
c5bb1730 MG |
1154 | spec = mlx5_vzalloc(sizeof(*spec)); |
1155 | if (!spec || !flow) { | |
e3a2b7ed AV |
1156 | err = -ENOMEM; |
1157 | goto err_free; | |
1158 | } | |
1159 | ||
1160 | flow->cookie = f->cookie; | |
65ba8fb7 | 1161 | flow->flags = flow_flags; |
e3a2b7ed | 1162 | |
65ba8fb7 | 1163 | err = parse_cls_flower(priv, flow, spec, f); |
e3a2b7ed AV |
1164 | if (err < 0) |
1165 | goto err_free; | |
1166 | ||
65ba8fb7 | 1167 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
776b12b6 | 1168 | flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1); |
a54e20b4 | 1169 | err = parse_tc_fdb_actions(priv, f->exts, flow); |
adb4c123 OG |
1170 | if (err < 0) |
1171 | goto err_free; | |
776b12b6 | 1172 | flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr); |
adb4c123 OG |
1173 | } else { |
1174 | err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag); | |
1175 | if (err < 0) | |
1176 | goto err_free; | |
1177 | flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag); | |
1178 | } | |
e3a2b7ed | 1179 | |
e3a2b7ed AV |
1180 | if (IS_ERR(flow->rule)) { |
1181 | err = PTR_ERR(flow->rule); | |
5e86397a | 1182 | goto err_del_rule; |
e3a2b7ed AV |
1183 | } |
1184 | ||
5c40348c OG |
1185 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
1186 | tc->ht_params); | |
1187 | if (err) | |
1188 | goto err_del_rule; | |
1189 | ||
e3a2b7ed AV |
1190 | goto out; |
1191 | ||
5c40348c | 1192 | err_del_rule: |
5e86397a | 1193 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
1194 | |
1195 | err_free: | |
53636068 | 1196 | kfree(flow); |
e3a2b7ed | 1197 | out: |
c5bb1730 | 1198 | kvfree(spec); |
e3a2b7ed AV |
1199 | return err; |
1200 | } | |
1201 | ||
1202 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
1203 | struct tc_cls_flower_offload *f) | |
1204 | { | |
1205 | struct mlx5e_tc_flow *flow; | |
acff797c | 1206 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
1207 | |
1208 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1209 | tc->ht_params); | |
1210 | if (!flow) | |
1211 | return -EINVAL; | |
1212 | ||
1213 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
1214 | ||
961e8979 | 1215 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed | 1216 | |
a54e20b4 | 1217 | |
e3a2b7ed AV |
1218 | kfree(flow); |
1219 | ||
1220 | return 0; | |
1221 | } | |
1222 | ||
aad7e08d AV |
1223 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
1224 | struct tc_cls_flower_offload *f) | |
1225 | { | |
1226 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
1227 | struct mlx5e_tc_flow *flow; | |
1228 | struct tc_action *a; | |
1229 | struct mlx5_fc *counter; | |
22dc13c8 | 1230 | LIST_HEAD(actions); |
aad7e08d AV |
1231 | u64 bytes; |
1232 | u64 packets; | |
1233 | u64 lastuse; | |
1234 | ||
1235 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1236 | tc->ht_params); | |
1237 | if (!flow) | |
1238 | return -EINVAL; | |
1239 | ||
1240 | counter = mlx5_flow_rule_counter(flow->rule); | |
1241 | if (!counter) | |
1242 | return 0; | |
1243 | ||
1244 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
1245 | ||
fed06ee8 OG |
1246 | preempt_disable(); |
1247 | ||
22dc13c8 WC |
1248 | tcf_exts_to_list(f->exts, &actions); |
1249 | list_for_each_entry(a, &actions, list) | |
aad7e08d AV |
1250 | tcf_action_stats_update(a, bytes, packets, lastuse); |
1251 | ||
fed06ee8 OG |
1252 | preempt_enable(); |
1253 | ||
aad7e08d AV |
1254 | return 0; |
1255 | } | |
1256 | ||
e8f887ac AV |
1257 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
1258 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
1259 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
1260 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
1261 | .automatic_shrinking = true, | |
1262 | }; | |
1263 | ||
1264 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
1265 | { | |
acff797c | 1266 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1267 | |
1268 | tc->ht_params = mlx5e_tc_flow_ht_params; | |
1269 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
1270 | } | |
1271 | ||
1272 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
1273 | { | |
1274 | struct mlx5e_tc_flow *flow = ptr; | |
1275 | struct mlx5e_priv *priv = arg; | |
1276 | ||
961e8979 | 1277 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
1278 | kfree(flow); |
1279 | } | |
1280 | ||
1281 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
1282 | { | |
acff797c | 1283 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1284 | |
1285 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
1286 | ||
acff797c MG |
1287 | if (!IS_ERR_OR_NULL(tc->t)) { |
1288 | mlx5_destroy_flow_table(tc->t); | |
1289 | tc->t = NULL; | |
e8f887ac AV |
1290 | } |
1291 | } |