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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 | ||
d85cdccb OG |
136 | static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, |
137 | struct mlx5e_tc_flow *flow) | |
138 | { | |
139 | struct mlx5_fc *counter = NULL; | |
140 | ||
141 | if (!IS_ERR(flow->rule)) { | |
142 | counter = mlx5_flow_rule_counter(flow->rule); | |
143 | mlx5_del_flow_rules(flow->rule); | |
144 | mlx5_fc_destroy(priv->mdev, counter); | |
145 | } | |
146 | ||
147 | if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) { | |
148 | mlx5_destroy_flow_table(priv->fs.tc.t); | |
149 | priv->fs.tc.t = NULL; | |
150 | } | |
151 | } | |
152 | ||
74491de9 MB |
153 | static struct mlx5_flow_handle * |
154 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, | |
155 | struct mlx5_flow_spec *spec, | |
156 | struct mlx5_esw_flow_attr *attr) | |
adb4c123 OG |
157 | { |
158 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
8b32580d OG |
159 | int err; |
160 | ||
161 | err = mlx5_eswitch_add_vlan_action(esw, attr); | |
162 | if (err) | |
163 | return ERR_PTR(err); | |
adb4c123 | 164 | |
776b12b6 | 165 | return mlx5_eswitch_add_offloaded_rule(esw, spec, attr); |
adb4c123 OG |
166 | } |
167 | ||
5067b602 | 168 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
d85cdccb OG |
169 | struct mlx5e_tc_flow *flow); |
170 | ||
171 | static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, | |
172 | struct mlx5e_tc_flow *flow) | |
173 | { | |
174 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
175 | ||
176 | mlx5_eswitch_del_offloaded_rule(esw, flow->rule, flow->attr); | |
177 | ||
178 | mlx5_eswitch_del_vlan_action(esw, flow->attr); | |
179 | ||
180 | if (flow->attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) | |
181 | mlx5e_detach_encap(priv, flow); | |
182 | } | |
183 | ||
184 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, | |
185 | struct mlx5e_tc_flow *flow) | |
186 | { | |
5067b602 RD |
187 | struct list_head *next = flow->encap.next; |
188 | ||
189 | list_del(&flow->encap); | |
190 | if (list_empty(next)) { | |
191 | struct mlx5_encap_entry *e; | |
192 | ||
193 | e = list_entry(next, struct mlx5_encap_entry, flows); | |
194 | if (e->n) { | |
195 | mlx5_encap_dealloc(priv->mdev, e->encap_id); | |
196 | neigh_release(e->n); | |
197 | } | |
198 | hlist_del_rcu(&e->encap_hlist); | |
199 | kfree(e); | |
200 | } | |
201 | } | |
202 | ||
5e86397a OG |
203 | /* we get here also when setting rule to the FW failed, etc. It means that the |
204 | * flow rule itself might not exist, but some offloading related to the actions | |
205 | * should be cleaned. | |
206 | */ | |
e8f887ac | 207 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 208 | struct mlx5e_tc_flow *flow) |
e8f887ac | 209 | { |
d85cdccb OG |
210 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) |
211 | mlx5e_tc_del_fdb_flow(priv, flow); | |
212 | else | |
213 | mlx5e_tc_del_nic_flow(priv, flow); | |
e8f887ac AV |
214 | } |
215 | ||
bbd00f7e HHZ |
216 | static void parse_vxlan_attr(struct mlx5_flow_spec *spec, |
217 | struct tc_cls_flower_offload *f) | |
218 | { | |
219 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
220 | outer_headers); | |
221 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
222 | outer_headers); | |
223 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
224 | misc_parameters); | |
225 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
226 | misc_parameters); | |
227 | ||
228 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ip_protocol); | |
229 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, IPPROTO_UDP); | |
230 | ||
231 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) { | |
232 | struct flow_dissector_key_keyid *key = | |
233 | skb_flow_dissector_target(f->dissector, | |
234 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
235 | f->key); | |
236 | struct flow_dissector_key_keyid *mask = | |
237 | skb_flow_dissector_target(f->dissector, | |
238 | FLOW_DISSECTOR_KEY_ENC_KEYID, | |
239 | f->mask); | |
240 | MLX5_SET(fte_match_set_misc, misc_c, vxlan_vni, | |
241 | be32_to_cpu(mask->keyid)); | |
242 | MLX5_SET(fte_match_set_misc, misc_v, vxlan_vni, | |
243 | be32_to_cpu(key->keyid)); | |
244 | } | |
245 | } | |
246 | ||
247 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
248 | struct mlx5_flow_spec *spec, | |
249 | struct tc_cls_flower_offload *f) | |
250 | { | |
251 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
252 | outer_headers); | |
253 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
254 | outer_headers); | |
255 | ||
2e72eb43 OG |
256 | struct flow_dissector_key_control *enc_control = |
257 | skb_flow_dissector_target(f->dissector, | |
258 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
259 | f->key); | |
260 | ||
bbd00f7e HHZ |
261 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) { |
262 | struct flow_dissector_key_ports *key = | |
263 | skb_flow_dissector_target(f->dissector, | |
264 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
265 | f->key); | |
266 | struct flow_dissector_key_ports *mask = | |
267 | skb_flow_dissector_target(f->dissector, | |
268 | FLOW_DISSECTOR_KEY_ENC_PORTS, | |
269 | f->mask); | |
1ad9a00a PB |
270 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
271 | struct net_device *up_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
272 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); | |
bbd00f7e HHZ |
273 | |
274 | /* Full udp dst port must be given */ | |
275 | if (memchr_inv(&mask->dst, 0xff, sizeof(mask->dst))) | |
2fcd82e9 | 276 | goto vxlan_match_offload_err; |
bbd00f7e | 277 | |
1ad9a00a | 278 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->dst)) && |
bbd00f7e HHZ |
279 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) |
280 | parse_vxlan_attr(spec, f); | |
2fcd82e9 OG |
281 | else { |
282 | netdev_warn(priv->netdev, | |
283 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst)); | |
bbd00f7e | 284 | return -EOPNOTSUPP; |
2fcd82e9 | 285 | } |
bbd00f7e HHZ |
286 | |
287 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
288 | udp_dport, ntohs(mask->dst)); | |
289 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
290 | udp_dport, ntohs(key->dst)); | |
291 | ||
cd377663 OG |
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)); | |
bbd00f7e | 296 | } else { /* udp dst port must be given */ |
2fcd82e9 OG |
297 | vxlan_match_offload_err: |
298 | netdev_warn(priv->netdev, | |
299 | "IP tunnel decap offload supported only for vxlan, must set UDP dport\n"); | |
300 | return -EOPNOTSUPP; | |
bbd00f7e HHZ |
301 | } |
302 | ||
2e72eb43 | 303 | if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
bbd00f7e HHZ |
304 | struct flow_dissector_key_ipv4_addrs *key = |
305 | skb_flow_dissector_target(f->dissector, | |
306 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
307 | f->key); | |
308 | struct flow_dissector_key_ipv4_addrs *mask = | |
309 | skb_flow_dissector_target(f->dissector, | |
310 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, | |
311 | f->mask); | |
312 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
313 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
314 | ntohl(mask->src)); | |
315 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
316 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
317 | ntohl(key->src)); | |
318 | ||
319 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
320 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
321 | ntohl(mask->dst)); | |
322 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
323 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
324 | ntohl(key->dst)); | |
bbd00f7e | 325 | |
2e72eb43 OG |
326 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); |
327 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
19f44401 OG |
328 | } else if (enc_control->addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { |
329 | struct flow_dissector_key_ipv6_addrs *key = | |
330 | skb_flow_dissector_target(f->dissector, | |
331 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
332 | f->key); | |
333 | struct flow_dissector_key_ipv6_addrs *mask = | |
334 | skb_flow_dissector_target(f->dissector, | |
335 | FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, | |
336 | f->mask); | |
337 | ||
338 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
339 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
340 | &mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
341 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
342 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
343 | &key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
344 | ||
345 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
346 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
347 | &mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
348 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
349 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
350 | &key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); | |
351 | ||
352 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
353 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); | |
2e72eb43 | 354 | } |
bbd00f7e HHZ |
355 | |
356 | /* Enforce DMAC when offloading incoming tunneled flows. | |
357 | * Flow counters require a match on the DMAC. | |
358 | */ | |
359 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
360 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
361 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
362 | dmac_47_16), priv->netdev->dev_addr); | |
363 | ||
364 | /* let software handle IP fragments */ | |
365 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
366 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
de0af0bf RD |
371 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
372 | struct mlx5_flow_spec *spec, | |
373 | struct tc_cls_flower_offload *f, | |
374 | u8 *min_inline) | |
e3a2b7ed | 375 | { |
c5bb1730 MG |
376 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
377 | outer_headers); | |
378 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
379 | outer_headers); | |
e3a2b7ed AV |
380 | u16 addr_type = 0; |
381 | u8 ip_proto = 0; | |
382 | ||
de0af0bf RD |
383 | *min_inline = MLX5_INLINE_MODE_L2; |
384 | ||
e3a2b7ed AV |
385 | if (f->dissector->used_keys & |
386 | ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
387 | BIT(FLOW_DISSECTOR_KEY_BASIC) | | |
388 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 389 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
e3a2b7ed AV |
390 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
391 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
392 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
393 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
394 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
395 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
396 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
397 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL))) { | |
e3a2b7ed AV |
398 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
399 | f->dissector->used_keys); | |
400 | return -EOPNOTSUPP; | |
401 | } | |
402 | ||
bbd00f7e HHZ |
403 | if ((dissector_uses_key(f->dissector, |
404 | FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) || | |
405 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID) || | |
406 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) && | |
407 | dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) { | |
408 | struct flow_dissector_key_control *key = | |
409 | skb_flow_dissector_target(f->dissector, | |
410 | FLOW_DISSECTOR_KEY_ENC_CONTROL, | |
411 | f->key); | |
412 | switch (key->addr_type) { | |
413 | case FLOW_DISSECTOR_KEY_IPV4_ADDRS: | |
19f44401 | 414 | case FLOW_DISSECTOR_KEY_IPV6_ADDRS: |
bbd00f7e HHZ |
415 | if (parse_tunnel_attr(priv, spec, f)) |
416 | return -EOPNOTSUPP; | |
417 | break; | |
418 | default: | |
419 | return -EOPNOTSUPP; | |
420 | } | |
421 | ||
422 | /* In decap flow, header pointers should point to the inner | |
423 | * headers, outer header were already set by parse_tunnel_attr | |
424 | */ | |
425 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
426 | inner_headers); | |
427 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
428 | inner_headers); | |
429 | } | |
430 | ||
e3a2b7ed AV |
431 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { |
432 | struct flow_dissector_key_control *key = | |
433 | skb_flow_dissector_target(f->dissector, | |
1dbd0d37 | 434 | FLOW_DISSECTOR_KEY_CONTROL, |
e3a2b7ed | 435 | f->key); |
3f7d0eb4 OG |
436 | |
437 | struct flow_dissector_key_control *mask = | |
438 | skb_flow_dissector_target(f->dissector, | |
439 | FLOW_DISSECTOR_KEY_CONTROL, | |
440 | f->mask); | |
e3a2b7ed | 441 | addr_type = key->addr_type; |
3f7d0eb4 OG |
442 | |
443 | if (mask->flags & FLOW_DIS_IS_FRAGMENT) { | |
444 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
445 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
446 | key->flags & FLOW_DIS_IS_FRAGMENT); | |
0827444d OG |
447 | |
448 | /* the HW doesn't need L3 inline to match on frag=no */ | |
449 | if (key->flags & FLOW_DIS_IS_FRAGMENT) | |
450 | *min_inline = MLX5_INLINE_MODE_IP; | |
3f7d0eb4 | 451 | } |
e3a2b7ed AV |
452 | } |
453 | ||
454 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) { | |
455 | struct flow_dissector_key_basic *key = | |
456 | skb_flow_dissector_target(f->dissector, | |
457 | FLOW_DISSECTOR_KEY_BASIC, | |
458 | f->key); | |
459 | struct flow_dissector_key_basic *mask = | |
460 | skb_flow_dissector_target(f->dissector, | |
461 | FLOW_DISSECTOR_KEY_BASIC, | |
462 | f->mask); | |
463 | ip_proto = key->ip_proto; | |
464 | ||
465 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, | |
466 | ntohs(mask->n_proto)); | |
467 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, | |
468 | ntohs(key->n_proto)); | |
469 | ||
470 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
471 | mask->ip_proto); | |
472 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, | |
473 | key->ip_proto); | |
de0af0bf RD |
474 | |
475 | if (mask->ip_proto) | |
476 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
477 | } |
478 | ||
479 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { | |
480 | struct flow_dissector_key_eth_addrs *key = | |
481 | skb_flow_dissector_target(f->dissector, | |
482 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
483 | f->key); | |
484 | struct flow_dissector_key_eth_addrs *mask = | |
485 | skb_flow_dissector_target(f->dissector, | |
486 | FLOW_DISSECTOR_KEY_ETH_ADDRS, | |
487 | f->mask); | |
488 | ||
489 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
490 | dmac_47_16), | |
491 | mask->dst); | |
492 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
493 | dmac_47_16), | |
494 | key->dst); | |
495 | ||
496 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
497 | smac_47_16), | |
498 | mask->src); | |
499 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
500 | smac_47_16), | |
501 | key->src); | |
502 | } | |
503 | ||
095b6cfd OG |
504 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) { |
505 | struct flow_dissector_key_vlan *key = | |
506 | skb_flow_dissector_target(f->dissector, | |
507 | FLOW_DISSECTOR_KEY_VLAN, | |
508 | f->key); | |
509 | struct flow_dissector_key_vlan *mask = | |
510 | skb_flow_dissector_target(f->dissector, | |
511 | FLOW_DISSECTOR_KEY_VLAN, | |
512 | f->mask); | |
358d79a4 | 513 | if (mask->vlan_id || mask->vlan_priority) { |
10543365 MHY |
514 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); |
515 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); | |
095b6cfd OG |
516 | |
517 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, mask->vlan_id); | |
518 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, key->vlan_id); | |
358d79a4 OG |
519 | |
520 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, mask->vlan_priority); | |
521 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, key->vlan_priority); | |
095b6cfd OG |
522 | } |
523 | } | |
524 | ||
e3a2b7ed AV |
525 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
526 | struct flow_dissector_key_ipv4_addrs *key = | |
527 | skb_flow_dissector_target(f->dissector, | |
528 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
529 | f->key); | |
530 | struct flow_dissector_key_ipv4_addrs *mask = | |
531 | skb_flow_dissector_target(f->dissector, | |
532 | FLOW_DISSECTOR_KEY_IPV4_ADDRS, | |
533 | f->mask); | |
534 | ||
535 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
536 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
537 | &mask->src, sizeof(mask->src)); | |
538 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
539 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
540 | &key->src, sizeof(key->src)); | |
541 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
542 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
543 | &mask->dst, sizeof(mask->dst)); | |
544 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
545 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
546 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
547 | |
548 | if (mask->src || mask->dst) | |
549 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
550 | } |
551 | ||
552 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
553 | struct flow_dissector_key_ipv6_addrs *key = | |
554 | skb_flow_dissector_target(f->dissector, | |
555 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
556 | f->key); | |
557 | struct flow_dissector_key_ipv6_addrs *mask = | |
558 | skb_flow_dissector_target(f->dissector, | |
559 | FLOW_DISSECTOR_KEY_IPV6_ADDRS, | |
560 | f->mask); | |
561 | ||
562 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
563 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
564 | &mask->src, sizeof(mask->src)); | |
565 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
566 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
567 | &key->src, sizeof(key->src)); | |
568 | ||
569 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
570 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
571 | &mask->dst, sizeof(mask->dst)); | |
572 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
573 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
574 | &key->dst, sizeof(key->dst)); | |
de0af0bf RD |
575 | |
576 | if (ipv6_addr_type(&mask->src) != IPV6_ADDR_ANY || | |
577 | ipv6_addr_type(&mask->dst) != IPV6_ADDR_ANY) | |
578 | *min_inline = MLX5_INLINE_MODE_IP; | |
e3a2b7ed AV |
579 | } |
580 | ||
581 | if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) { | |
582 | struct flow_dissector_key_ports *key = | |
583 | skb_flow_dissector_target(f->dissector, | |
584 | FLOW_DISSECTOR_KEY_PORTS, | |
585 | f->key); | |
586 | struct flow_dissector_key_ports *mask = | |
587 | skb_flow_dissector_target(f->dissector, | |
588 | FLOW_DISSECTOR_KEY_PORTS, | |
589 | f->mask); | |
590 | switch (ip_proto) { | |
591 | case IPPROTO_TCP: | |
592 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
593 | tcp_sport, ntohs(mask->src)); | |
594 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
595 | tcp_sport, ntohs(key->src)); | |
596 | ||
597 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
598 | tcp_dport, ntohs(mask->dst)); | |
599 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
600 | tcp_dport, ntohs(key->dst)); | |
601 | break; | |
602 | ||
603 | case IPPROTO_UDP: | |
604 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
605 | udp_sport, ntohs(mask->src)); | |
606 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
607 | udp_sport, ntohs(key->src)); | |
608 | ||
609 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
610 | udp_dport, ntohs(mask->dst)); | |
611 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
612 | udp_dport, ntohs(key->dst)); | |
613 | break; | |
614 | default: | |
615 | netdev_err(priv->netdev, | |
616 | "Only UDP and TCP transport are supported\n"); | |
617 | return -EINVAL; | |
618 | } | |
de0af0bf RD |
619 | |
620 | if (mask->src || mask->dst) | |
621 | *min_inline = MLX5_INLINE_MODE_TCP_UDP; | |
e3a2b7ed AV |
622 | } |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
de0af0bf | 627 | static int parse_cls_flower(struct mlx5e_priv *priv, |
65ba8fb7 | 628 | struct mlx5e_tc_flow *flow, |
de0af0bf RD |
629 | struct mlx5_flow_spec *spec, |
630 | struct tc_cls_flower_offload *f) | |
631 | { | |
632 | struct mlx5_core_dev *dev = priv->mdev; | |
633 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
634 | struct mlx5_eswitch_rep *rep = priv->ppriv; | |
635 | u8 min_inline; | |
636 | int err; | |
637 | ||
638 | err = __parse_cls_flower(priv, spec, f, &min_inline); | |
639 | ||
65ba8fb7 | 640 | if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH) && |
de0af0bf | 641 | rep->vport != FDB_UPLINK_VPORT) { |
c415f704 OG |
642 | if (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE && |
643 | esw->offloads.inline_mode < min_inline) { | |
de0af0bf RD |
644 | netdev_warn(priv->netdev, |
645 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
646 | min_inline, esw->offloads.inline_mode); | |
647 | return -EOPNOTSUPP; | |
648 | } | |
649 | } | |
650 | ||
651 | return err; | |
652 | } | |
653 | ||
5c40348c OG |
654 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
655 | u32 *action, u32 *flow_tag) | |
e3a2b7ed AV |
656 | { |
657 | const struct tc_action *a; | |
22dc13c8 | 658 | LIST_HEAD(actions); |
e3a2b7ed AV |
659 | |
660 | if (tc_no_actions(exts)) | |
661 | return -EINVAL; | |
662 | ||
663 | *flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; | |
664 | *action = 0; | |
665 | ||
22dc13c8 WC |
666 | tcf_exts_to_list(exts, &actions); |
667 | list_for_each_entry(a, &actions, list) { | |
e3a2b7ed AV |
668 | /* Only support a single action per rule */ |
669 | if (*action) | |
670 | return -EINVAL; | |
671 | ||
672 | if (is_tcf_gact_shot(a)) { | |
673 | *action |= MLX5_FLOW_CONTEXT_ACTION_DROP; | |
aad7e08d AV |
674 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
675 | flow_table_properties_nic_receive.flow_counter)) | |
676 | *action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
e3a2b7ed AV |
677 | continue; |
678 | } | |
679 | ||
680 | if (is_tcf_skbedit_mark(a)) { | |
681 | u32 mark = tcf_skbedit_mark(a); | |
682 | ||
683 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
684 | netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n", | |
685 | mark); | |
686 | return -EINVAL; | |
687 | } | |
688 | ||
689 | *flow_tag = mark; | |
690 | *action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
691 | continue; | |
692 | } | |
693 | ||
694 | return -EINVAL; | |
695 | } | |
696 | ||
697 | return 0; | |
698 | } | |
699 | ||
76f7444d OG |
700 | static inline int cmp_encap_info(struct ip_tunnel_key *a, |
701 | struct ip_tunnel_key *b) | |
a54e20b4 HHZ |
702 | { |
703 | return memcmp(a, b, sizeof(*a)); | |
704 | } | |
705 | ||
76f7444d | 706 | static inline int hash_encap_info(struct ip_tunnel_key *key) |
a54e20b4 | 707 | { |
76f7444d | 708 | return jhash(key, sizeof(*key), 0); |
a54e20b4 HHZ |
709 | } |
710 | ||
711 | static int mlx5e_route_lookup_ipv4(struct mlx5e_priv *priv, | |
712 | struct net_device *mirred_dev, | |
713 | struct net_device **out_dev, | |
714 | struct flowi4 *fl4, | |
715 | struct neighbour **out_n, | |
a54e20b4 HHZ |
716 | int *out_ttl) |
717 | { | |
3e621b19 | 718 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
a54e20b4 HHZ |
719 | struct rtable *rt; |
720 | struct neighbour *n = NULL; | |
a54e20b4 HHZ |
721 | |
722 | #if IS_ENABLED(CONFIG_INET) | |
abeffce9 AB |
723 | int ret; |
724 | ||
a54e20b4 | 725 | rt = ip_route_output_key(dev_net(mirred_dev), fl4); |
abeffce9 AB |
726 | ret = PTR_ERR_OR_ZERO(rt); |
727 | if (ret) | |
728 | return ret; | |
a54e20b4 HHZ |
729 | #else |
730 | return -EOPNOTSUPP; | |
731 | #endif | |
3e621b19 HHZ |
732 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ |
733 | if (!switchdev_port_same_parent_id(priv->netdev, rt->dst.dev)) | |
734 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
735 | else | |
736 | *out_dev = rt->dst.dev; | |
a54e20b4 | 737 | |
75c33da8 | 738 | *out_ttl = ip4_dst_hoplimit(&rt->dst); |
a54e20b4 HHZ |
739 | n = dst_neigh_lookup(&rt->dst, &fl4->daddr); |
740 | ip_rt_put(rt); | |
741 | if (!n) | |
742 | return -ENOMEM; | |
743 | ||
744 | *out_n = n; | |
a54e20b4 HHZ |
745 | return 0; |
746 | } | |
747 | ||
ce99f6b9 OG |
748 | static int mlx5e_route_lookup_ipv6(struct mlx5e_priv *priv, |
749 | struct net_device *mirred_dev, | |
750 | struct net_device **out_dev, | |
751 | struct flowi6 *fl6, | |
752 | struct neighbour **out_n, | |
753 | int *out_ttl) | |
754 | { | |
755 | struct neighbour *n = NULL; | |
756 | struct dst_entry *dst; | |
757 | ||
758 | #if IS_ENABLED(CONFIG_INET) && IS_ENABLED(CONFIG_IPV6) | |
759 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
760 | int ret; | |
761 | ||
762 | dst = ip6_route_output(dev_net(mirred_dev), NULL, fl6); | |
321fa4ff AB |
763 | ret = dst->error; |
764 | if (ret) { | |
ce99f6b9 OG |
765 | dst_release(dst); |
766 | return ret; | |
767 | } | |
768 | ||
769 | *out_ttl = ip6_dst_hoplimit(dst); | |
770 | ||
771 | /* if the egress device isn't on the same HW e-switch, we use the uplink */ | |
772 | if (!switchdev_port_same_parent_id(priv->netdev, dst->dev)) | |
773 | *out_dev = mlx5_eswitch_get_uplink_netdev(esw); | |
774 | else | |
775 | *out_dev = dst->dev; | |
776 | #else | |
777 | return -EOPNOTSUPP; | |
778 | #endif | |
779 | ||
780 | n = dst_neigh_lookup(dst, &fl6->daddr); | |
781 | dst_release(dst); | |
782 | if (!n) | |
783 | return -ENOMEM; | |
784 | ||
785 | *out_n = n; | |
786 | return 0; | |
787 | } | |
788 | ||
a54e20b4 HHZ |
789 | static int gen_vxlan_header_ipv4(struct net_device *out_dev, |
790 | char buf[], | |
791 | unsigned char h_dest[ETH_ALEN], | |
792 | int ttl, | |
793 | __be32 daddr, | |
794 | __be32 saddr, | |
795 | __be16 udp_dst_port, | |
796 | __be32 vx_vni) | |
797 | { | |
798 | int encap_size = VXLAN_HLEN + sizeof(struct iphdr) + ETH_HLEN; | |
799 | struct ethhdr *eth = (struct ethhdr *)buf; | |
800 | struct iphdr *ip = (struct iphdr *)((char *)eth + sizeof(struct ethhdr)); | |
801 | struct udphdr *udp = (struct udphdr *)((char *)ip + sizeof(struct iphdr)); | |
802 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
803 | ||
804 | memset(buf, 0, encap_size); | |
805 | ||
806 | ether_addr_copy(eth->h_dest, h_dest); | |
807 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
808 | eth->h_proto = htons(ETH_P_IP); | |
809 | ||
810 | ip->daddr = daddr; | |
811 | ip->saddr = saddr; | |
812 | ||
813 | ip->ttl = ttl; | |
814 | ip->protocol = IPPROTO_UDP; | |
815 | ip->version = 0x4; | |
816 | ip->ihl = 0x5; | |
817 | ||
818 | udp->dest = udp_dst_port; | |
819 | vxh->vx_flags = VXLAN_HF_VNI; | |
820 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
821 | ||
822 | return encap_size; | |
823 | } | |
824 | ||
ce99f6b9 OG |
825 | static int gen_vxlan_header_ipv6(struct net_device *out_dev, |
826 | char buf[], | |
827 | unsigned char h_dest[ETH_ALEN], | |
828 | int ttl, | |
829 | struct in6_addr *daddr, | |
830 | struct in6_addr *saddr, | |
831 | __be16 udp_dst_port, | |
832 | __be32 vx_vni) | |
833 | { | |
834 | int encap_size = VXLAN_HLEN + sizeof(struct ipv6hdr) + ETH_HLEN; | |
835 | struct ethhdr *eth = (struct ethhdr *)buf; | |
836 | struct ipv6hdr *ip6h = (struct ipv6hdr *)((char *)eth + sizeof(struct ethhdr)); | |
837 | struct udphdr *udp = (struct udphdr *)((char *)ip6h + sizeof(struct ipv6hdr)); | |
838 | struct vxlanhdr *vxh = (struct vxlanhdr *)((char *)udp + sizeof(struct udphdr)); | |
839 | ||
840 | memset(buf, 0, encap_size); | |
841 | ||
842 | ether_addr_copy(eth->h_dest, h_dest); | |
843 | ether_addr_copy(eth->h_source, out_dev->dev_addr); | |
844 | eth->h_proto = htons(ETH_P_IPV6); | |
845 | ||
846 | ip6_flow_hdr(ip6h, 0, 0); | |
847 | /* the HW fills up ipv6 payload len */ | |
848 | ip6h->nexthdr = IPPROTO_UDP; | |
849 | ip6h->hop_limit = ttl; | |
850 | ip6h->daddr = *daddr; | |
851 | ip6h->saddr = *saddr; | |
852 | ||
853 | udp->dest = udp_dst_port; | |
854 | vxh->vx_flags = VXLAN_HF_VNI; | |
855 | vxh->vx_vni = vxlan_vni_field(vx_vni); | |
856 | ||
857 | return encap_size; | |
858 | } | |
859 | ||
a54e20b4 HHZ |
860 | static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv, |
861 | struct net_device *mirred_dev, | |
862 | struct mlx5_encap_entry *e, | |
863 | struct net_device **out_dev) | |
864 | { | |
865 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
76f7444d | 866 | struct ip_tunnel_key *tun_key = &e->tun_info.key; |
9a941117 | 867 | int encap_size, ttl, err; |
a42485eb | 868 | struct neighbour *n = NULL; |
a54e20b4 | 869 | struct flowi4 fl4 = {}; |
a54e20b4 | 870 | char *encap_header; |
a54e20b4 HHZ |
871 | |
872 | encap_header = kzalloc(max_encap_size, GFP_KERNEL); | |
873 | if (!encap_header) | |
874 | return -ENOMEM; | |
875 | ||
876 | switch (e->tunnel_type) { | |
877 | case MLX5_HEADER_TYPE_VXLAN: | |
878 | fl4.flowi4_proto = IPPROTO_UDP; | |
76f7444d | 879 | fl4.fl4_dport = tun_key->tp_dst; |
a54e20b4 HHZ |
880 | break; |
881 | default: | |
882 | err = -EOPNOTSUPP; | |
883 | goto out; | |
884 | } | |
9a941117 | 885 | fl4.flowi4_tos = tun_key->tos; |
76f7444d | 886 | fl4.daddr = tun_key->u.ipv4.dst; |
9a941117 | 887 | fl4.saddr = tun_key->u.ipv4.src; |
a54e20b4 HHZ |
888 | |
889 | err = mlx5e_route_lookup_ipv4(priv, mirred_dev, out_dev, | |
9a941117 | 890 | &fl4, &n, &ttl); |
a54e20b4 HHZ |
891 | if (err) |
892 | goto out; | |
893 | ||
a54e20b4 | 894 | if (!(n->nud_state & NUD_VALID)) { |
a42485eb OG |
895 | pr_warn("%s: can't offload, neighbour to %pI4 invalid\n", __func__, &fl4.daddr); |
896 | err = -EOPNOTSUPP; | |
a54e20b4 HHZ |
897 | goto out; |
898 | } | |
899 | ||
75c33da8 OG |
900 | e->n = n; |
901 | e->out_dev = *out_dev; | |
902 | ||
a54e20b4 HHZ |
903 | neigh_ha_snapshot(e->h_dest, n, *out_dev); |
904 | ||
905 | switch (e->tunnel_type) { | |
906 | case MLX5_HEADER_TYPE_VXLAN: | |
907 | encap_size = gen_vxlan_header_ipv4(*out_dev, encap_header, | |
908 | e->h_dest, ttl, | |
9a941117 OG |
909 | fl4.daddr, |
910 | fl4.saddr, tun_key->tp_dst, | |
76f7444d | 911 | tunnel_id_to_key32(tun_key->tun_id)); |
a54e20b4 HHZ |
912 | break; |
913 | default: | |
914 | err = -EOPNOTSUPP; | |
915 | goto out; | |
916 | } | |
917 | ||
918 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
919 | encap_size, encap_header, &e->encap_id); | |
920 | out: | |
a42485eb OG |
921 | if (err && n) |
922 | neigh_release(n); | |
a54e20b4 HHZ |
923 | kfree(encap_header); |
924 | return err; | |
925 | } | |
926 | ||
ce99f6b9 OG |
927 | static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv, |
928 | struct net_device *mirred_dev, | |
929 | struct mlx5_encap_entry *e, | |
930 | struct net_device **out_dev) | |
931 | ||
932 | { | |
933 | int max_encap_size = MLX5_CAP_ESW(priv->mdev, max_encap_header_size); | |
934 | struct ip_tunnel_key *tun_key = &e->tun_info.key; | |
935 | int encap_size, err, ttl = 0; | |
936 | struct neighbour *n = NULL; | |
937 | struct flowi6 fl6 = {}; | |
938 | char *encap_header; | |
939 | ||
940 | encap_header = kzalloc(max_encap_size, GFP_KERNEL); | |
941 | if (!encap_header) | |
942 | return -ENOMEM; | |
943 | ||
944 | switch (e->tunnel_type) { | |
945 | case MLX5_HEADER_TYPE_VXLAN: | |
946 | fl6.flowi6_proto = IPPROTO_UDP; | |
947 | fl6.fl6_dport = tun_key->tp_dst; | |
948 | break; | |
949 | default: | |
950 | err = -EOPNOTSUPP; | |
951 | goto out; | |
952 | } | |
953 | ||
954 | fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label); | |
955 | fl6.daddr = tun_key->u.ipv6.dst; | |
956 | fl6.saddr = tun_key->u.ipv6.src; | |
957 | ||
958 | err = mlx5e_route_lookup_ipv6(priv, mirred_dev, out_dev, | |
959 | &fl6, &n, &ttl); | |
960 | if (err) | |
961 | goto out; | |
962 | ||
963 | if (!(n->nud_state & NUD_VALID)) { | |
964 | pr_warn("%s: can't offload, neighbour to %pI6 invalid\n", __func__, &fl6.daddr); | |
965 | err = -EOPNOTSUPP; | |
966 | goto out; | |
967 | } | |
968 | ||
969 | e->n = n; | |
970 | e->out_dev = *out_dev; | |
971 | ||
972 | neigh_ha_snapshot(e->h_dest, n, *out_dev); | |
973 | ||
974 | switch (e->tunnel_type) { | |
975 | case MLX5_HEADER_TYPE_VXLAN: | |
976 | encap_size = gen_vxlan_header_ipv6(*out_dev, encap_header, | |
977 | e->h_dest, ttl, | |
978 | &fl6.daddr, | |
979 | &fl6.saddr, tun_key->tp_dst, | |
980 | tunnel_id_to_key32(tun_key->tun_id)); | |
981 | break; | |
982 | default: | |
983 | err = -EOPNOTSUPP; | |
984 | goto out; | |
985 | } | |
986 | ||
987 | err = mlx5_encap_alloc(priv->mdev, e->tunnel_type, | |
988 | encap_size, encap_header, &e->encap_id); | |
989 | out: | |
990 | if (err && n) | |
991 | neigh_release(n); | |
992 | kfree(encap_header); | |
993 | return err; | |
994 | } | |
995 | ||
a54e20b4 HHZ |
996 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
997 | struct ip_tunnel_info *tun_info, | |
998 | struct net_device *mirred_dev, | |
999 | struct mlx5_esw_flow_attr *attr) | |
1000 | { | |
1001 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
1ad9a00a PB |
1002 | struct net_device *up_dev = mlx5_eswitch_get_uplink_netdev(esw); |
1003 | struct mlx5e_priv *up_priv = netdev_priv(up_dev); | |
a54e20b4 HHZ |
1004 | unsigned short family = ip_tunnel_info_af(tun_info); |
1005 | struct ip_tunnel_key *key = &tun_info->key; | |
a54e20b4 HHZ |
1006 | struct mlx5_encap_entry *e; |
1007 | struct net_device *out_dev; | |
ce99f6b9 | 1008 | int tunnel_type, err = -EOPNOTSUPP; |
a54e20b4 HHZ |
1009 | uintptr_t hash_key; |
1010 | bool found = false; | |
a54e20b4 | 1011 | |
2fcd82e9 | 1012 | /* udp dst port must be set */ |
a54e20b4 | 1013 | if (!memchr_inv(&key->tp_dst, 0, sizeof(key->tp_dst))) |
2fcd82e9 | 1014 | goto vxlan_encap_offload_err; |
a54e20b4 | 1015 | |
cd377663 | 1016 | /* setting udp src port isn't supported */ |
2fcd82e9 OG |
1017 | if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) { |
1018 | vxlan_encap_offload_err: | |
1019 | netdev_warn(priv->netdev, | |
1020 | "must set udp dst port and not set udp src port\n"); | |
cd377663 | 1021 | return -EOPNOTSUPP; |
2fcd82e9 | 1022 | } |
cd377663 | 1023 | |
1ad9a00a | 1024 | if (mlx5e_vxlan_lookup_port(up_priv, be16_to_cpu(key->tp_dst)) && |
a54e20b4 | 1025 | MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) { |
a54e20b4 HHZ |
1026 | tunnel_type = MLX5_HEADER_TYPE_VXLAN; |
1027 | } else { | |
2fcd82e9 OG |
1028 | netdev_warn(priv->netdev, |
1029 | "%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst)); | |
a54e20b4 HHZ |
1030 | return -EOPNOTSUPP; |
1031 | } | |
1032 | ||
76f7444d | 1033 | hash_key = hash_encap_info(key); |
a54e20b4 HHZ |
1034 | |
1035 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
1036 | encap_hlist, hash_key) { | |
76f7444d | 1037 | if (!cmp_encap_info(&e->tun_info.key, key)) { |
a54e20b4 HHZ |
1038 | found = true; |
1039 | break; | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | if (found) { | |
1044 | attr->encap = e; | |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
1049 | if (!e) | |
1050 | return -ENOMEM; | |
1051 | ||
76f7444d | 1052 | e->tun_info = *tun_info; |
a54e20b4 HHZ |
1053 | e->tunnel_type = tunnel_type; |
1054 | INIT_LIST_HEAD(&e->flows); | |
1055 | ||
ce99f6b9 OG |
1056 | if (family == AF_INET) |
1057 | err = mlx5e_create_encap_header_ipv4(priv, mirred_dev, e, &out_dev); | |
1058 | else if (family == AF_INET6) | |
1059 | err = mlx5e_create_encap_header_ipv6(priv, mirred_dev, e, &out_dev); | |
1060 | ||
a54e20b4 HHZ |
1061 | if (err) |
1062 | goto out_err; | |
1063 | ||
1064 | attr->encap = e; | |
1065 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); | |
1066 | ||
1067 | return err; | |
1068 | ||
1069 | out_err: | |
1070 | kfree(e); | |
1071 | return err; | |
1072 | } | |
1073 | ||
03a9d11e | 1074 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts, |
a54e20b4 | 1075 | struct mlx5e_tc_flow *flow) |
03a9d11e | 1076 | { |
a54e20b4 HHZ |
1077 | struct mlx5_esw_flow_attr *attr = flow->attr; |
1078 | struct ip_tunnel_info *info = NULL; | |
03a9d11e | 1079 | const struct tc_action *a; |
22dc13c8 | 1080 | LIST_HEAD(actions); |
a54e20b4 HHZ |
1081 | bool encap = false; |
1082 | int err; | |
03a9d11e OG |
1083 | |
1084 | if (tc_no_actions(exts)) | |
1085 | return -EINVAL; | |
1086 | ||
776b12b6 OG |
1087 | memset(attr, 0, sizeof(*attr)); |
1088 | attr->in_rep = priv->ppriv; | |
03a9d11e | 1089 | |
22dc13c8 WC |
1090 | tcf_exts_to_list(exts, &actions); |
1091 | list_for_each_entry(a, &actions, list) { | |
03a9d11e | 1092 | if (is_tcf_gact_shot(a)) { |
8b32580d OG |
1093 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
1094 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
03a9d11e OG |
1095 | continue; |
1096 | } | |
1097 | ||
5724b8b5 | 1098 | if (is_tcf_mirred_egress_redirect(a)) { |
03a9d11e OG |
1099 | int ifindex = tcf_mirred_ifindex(a); |
1100 | struct net_device *out_dev; | |
1101 | struct mlx5e_priv *out_priv; | |
03a9d11e OG |
1102 | |
1103 | out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex); | |
1104 | ||
a54e20b4 HHZ |
1105 | if (switchdev_port_same_parent_id(priv->netdev, |
1106 | out_dev)) { | |
1107 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1108 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1109 | out_priv = netdev_priv(out_dev); | |
1110 | attr->out_rep = out_priv->ppriv; | |
1111 | } else if (encap) { | |
1112 | err = mlx5e_attach_encap(priv, info, | |
1113 | out_dev, attr); | |
1114 | if (err) | |
1115 | return err; | |
1116 | list_add(&flow->encap, &attr->encap->flows); | |
1117 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP | | |
1118 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | | |
1119 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
1120 | out_priv = netdev_priv(attr->encap->out_dev); | |
1121 | attr->out_rep = out_priv->ppriv; | |
1122 | } else { | |
03a9d11e OG |
1123 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
1124 | priv->netdev->name, out_dev->name); | |
1125 | return -EINVAL; | |
1126 | } | |
a54e20b4 HHZ |
1127 | continue; |
1128 | } | |
03a9d11e | 1129 | |
a54e20b4 HHZ |
1130 | if (is_tcf_tunnel_set(a)) { |
1131 | info = tcf_tunnel_info(a); | |
1132 | if (info) | |
1133 | encap = true; | |
1134 | else | |
1135 | return -EOPNOTSUPP; | |
03a9d11e OG |
1136 | continue; |
1137 | } | |
1138 | ||
8b32580d | 1139 | if (is_tcf_vlan(a)) { |
09c91ddf | 1140 | if (tcf_vlan_action(a) == TCA_VLAN_ACT_POP) { |
8b32580d | 1141 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; |
09c91ddf | 1142 | } else if (tcf_vlan_action(a) == TCA_VLAN_ACT_PUSH) { |
8b32580d OG |
1143 | if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q)) |
1144 | return -EOPNOTSUPP; | |
1145 | ||
1146 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
1147 | attr->vlan = tcf_vlan_push_vid(a); | |
09c91ddf OG |
1148 | } else { /* action is TCA_VLAN_ACT_MODIFY */ |
1149 | return -EOPNOTSUPP; | |
8b32580d OG |
1150 | } |
1151 | continue; | |
1152 | } | |
1153 | ||
bbd00f7e HHZ |
1154 | if (is_tcf_tunnel_release(a)) { |
1155 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; | |
1156 | continue; | |
1157 | } | |
1158 | ||
03a9d11e OG |
1159 | return -EINVAL; |
1160 | } | |
1161 | return 0; | |
1162 | } | |
1163 | ||
e3a2b7ed AV |
1164 | int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, |
1165 | struct tc_cls_flower_offload *f) | |
1166 | { | |
acff797c | 1167 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
65ba8fb7 | 1168 | int err, attr_size = 0; |
776b12b6 | 1169 | u32 flow_tag, action; |
e3a2b7ed | 1170 | struct mlx5e_tc_flow *flow; |
c5bb1730 | 1171 | struct mlx5_flow_spec *spec; |
adb4c123 | 1172 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
65ba8fb7 | 1173 | u8 flow_flags = 0; |
e3a2b7ed | 1174 | |
65ba8fb7 OG |
1175 | if (esw && esw->mode == SRIOV_OFFLOADS) { |
1176 | flow_flags = MLX5E_TC_FLOW_ESWITCH; | |
1177 | attr_size = sizeof(struct mlx5_esw_flow_attr); | |
1178 | } | |
e3a2b7ed | 1179 | |
65ba8fb7 | 1180 | flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); |
c5bb1730 MG |
1181 | spec = mlx5_vzalloc(sizeof(*spec)); |
1182 | if (!spec || !flow) { | |
e3a2b7ed AV |
1183 | err = -ENOMEM; |
1184 | goto err_free; | |
1185 | } | |
1186 | ||
1187 | flow->cookie = f->cookie; | |
65ba8fb7 | 1188 | flow->flags = flow_flags; |
e3a2b7ed | 1189 | |
65ba8fb7 | 1190 | err = parse_cls_flower(priv, flow, spec, f); |
e3a2b7ed AV |
1191 | if (err < 0) |
1192 | goto err_free; | |
1193 | ||
65ba8fb7 | 1194 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
776b12b6 | 1195 | flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1); |
a54e20b4 | 1196 | err = parse_tc_fdb_actions(priv, f->exts, flow); |
adb4c123 OG |
1197 | if (err < 0) |
1198 | goto err_free; | |
776b12b6 | 1199 | flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr); |
adb4c123 OG |
1200 | } else { |
1201 | err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag); | |
1202 | if (err < 0) | |
1203 | goto err_free; | |
1204 | flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag); | |
1205 | } | |
e3a2b7ed | 1206 | |
e3a2b7ed AV |
1207 | if (IS_ERR(flow->rule)) { |
1208 | err = PTR_ERR(flow->rule); | |
5e86397a | 1209 | goto err_del_rule; |
e3a2b7ed AV |
1210 | } |
1211 | ||
5c40348c OG |
1212 | err = rhashtable_insert_fast(&tc->ht, &flow->node, |
1213 | tc->ht_params); | |
1214 | if (err) | |
1215 | goto err_del_rule; | |
1216 | ||
e3a2b7ed AV |
1217 | goto out; |
1218 | ||
5c40348c | 1219 | err_del_rule: |
5e86397a | 1220 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
1221 | |
1222 | err_free: | |
53636068 | 1223 | kfree(flow); |
e3a2b7ed | 1224 | out: |
c5bb1730 | 1225 | kvfree(spec); |
e3a2b7ed AV |
1226 | return err; |
1227 | } | |
1228 | ||
1229 | int mlx5e_delete_flower(struct mlx5e_priv *priv, | |
1230 | struct tc_cls_flower_offload *f) | |
1231 | { | |
1232 | struct mlx5e_tc_flow *flow; | |
acff797c | 1233 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e3a2b7ed AV |
1234 | |
1235 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1236 | tc->ht_params); | |
1237 | if (!flow) | |
1238 | return -EINVAL; | |
1239 | ||
1240 | rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params); | |
1241 | ||
961e8979 | 1242 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed | 1243 | |
a54e20b4 | 1244 | |
e3a2b7ed AV |
1245 | kfree(flow); |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
aad7e08d AV |
1250 | int mlx5e_stats_flower(struct mlx5e_priv *priv, |
1251 | struct tc_cls_flower_offload *f) | |
1252 | { | |
1253 | struct mlx5e_tc_table *tc = &priv->fs.tc; | |
1254 | struct mlx5e_tc_flow *flow; | |
1255 | struct tc_action *a; | |
1256 | struct mlx5_fc *counter; | |
22dc13c8 | 1257 | LIST_HEAD(actions); |
aad7e08d AV |
1258 | u64 bytes; |
1259 | u64 packets; | |
1260 | u64 lastuse; | |
1261 | ||
1262 | flow = rhashtable_lookup_fast(&tc->ht, &f->cookie, | |
1263 | tc->ht_params); | |
1264 | if (!flow) | |
1265 | return -EINVAL; | |
1266 | ||
1267 | counter = mlx5_flow_rule_counter(flow->rule); | |
1268 | if (!counter) | |
1269 | return 0; | |
1270 | ||
1271 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); | |
1272 | ||
fed06ee8 OG |
1273 | preempt_disable(); |
1274 | ||
22dc13c8 WC |
1275 | tcf_exts_to_list(f->exts, &actions); |
1276 | list_for_each_entry(a, &actions, list) | |
aad7e08d AV |
1277 | tcf_action_stats_update(a, bytes, packets, lastuse); |
1278 | ||
fed06ee8 OG |
1279 | preempt_enable(); |
1280 | ||
aad7e08d AV |
1281 | return 0; |
1282 | } | |
1283 | ||
e8f887ac AV |
1284 | static const struct rhashtable_params mlx5e_tc_flow_ht_params = { |
1285 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
1286 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
1287 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
1288 | .automatic_shrinking = true, | |
1289 | }; | |
1290 | ||
1291 | int mlx5e_tc_init(struct mlx5e_priv *priv) | |
1292 | { | |
acff797c | 1293 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1294 | |
1295 | tc->ht_params = mlx5e_tc_flow_ht_params; | |
1296 | return rhashtable_init(&tc->ht, &tc->ht_params); | |
1297 | } | |
1298 | ||
1299 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
1300 | { | |
1301 | struct mlx5e_tc_flow *flow = ptr; | |
1302 | struct mlx5e_priv *priv = arg; | |
1303 | ||
961e8979 | 1304 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
1305 | kfree(flow); |
1306 | } | |
1307 | ||
1308 | void mlx5e_tc_cleanup(struct mlx5e_priv *priv) | |
1309 | { | |
acff797c | 1310 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac AV |
1311 | |
1312 | rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv); | |
1313 | ||
acff797c MG |
1314 | if (!IS_ERR_OR_NULL(tc->t)) { |
1315 | mlx5_destroy_flow_table(tc->t); | |
1316 | tc->t = NULL; | |
e8f887ac AV |
1317 | } |
1318 | } |