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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 | 41 | #include <net/tc_act/tc_mirred.h> |
776b12b6 | 42 | #include <net/tc_act/tc_vlan.h> |
bbd00f7e | 43 | #include <net/tc_act/tc_tunnel_key.h> |
d79b6df6 | 44 | #include <net/tc_act/tc_pedit.h> |
26c02749 | 45 | #include <net/tc_act/tc_csum.h> |
f6dfb4c3 | 46 | #include <net/arp.h> |
3616d08b | 47 | #include <net/ipv6_stubs.h> |
e8f887ac | 48 | #include "en.h" |
1d447a39 | 49 | #include "en_rep.h" |
232c0013 | 50 | #include "en_tc.h" |
03a9d11e | 51 | #include "eswitch.h" |
3f6d08d1 | 52 | #include "fs_core.h" |
2c81bfd5 | 53 | #include "en/port.h" |
101f4de9 | 54 | #include "en/tc_tun.h" |
04de7dda | 55 | #include "lib/devcom.h" |
9272e3df | 56 | #include "lib/geneve.h" |
e8f887ac | 57 | |
3bc4b7bf OG |
58 | struct mlx5_nic_flow_attr { |
59 | u32 action; | |
60 | u32 flow_tag; | |
2f4fe4ca | 61 | u32 mod_hdr_id; |
5c65c564 | 62 | u32 hairpin_tirn; |
38aa51c1 | 63 | u8 match_level; |
3f6d08d1 | 64 | struct mlx5_flow_table *hairpin_ft; |
b8aee822 | 65 | struct mlx5_fc *counter; |
3bc4b7bf OG |
66 | }; |
67 | ||
60bd4af8 OG |
68 | #define MLX5E_TC_FLOW_BASE (MLX5E_TC_LAST_EXPORTED_BIT + 1) |
69 | ||
65ba8fb7 | 70 | enum { |
60bd4af8 OG |
71 | MLX5E_TC_FLOW_INGRESS = MLX5E_TC_INGRESS, |
72 | MLX5E_TC_FLOW_EGRESS = MLX5E_TC_EGRESS, | |
d9ee0491 OG |
73 | MLX5E_TC_FLOW_ESWITCH = MLX5E_TC_ESW_OFFLOAD, |
74 | MLX5E_TC_FLOW_NIC = MLX5E_TC_NIC_OFFLOAD, | |
75 | MLX5E_TC_FLOW_OFFLOADED = BIT(MLX5E_TC_FLOW_BASE), | |
76 | MLX5E_TC_FLOW_HAIRPIN = BIT(MLX5E_TC_FLOW_BASE + 1), | |
77 | MLX5E_TC_FLOW_HAIRPIN_RSS = BIT(MLX5E_TC_FLOW_BASE + 2), | |
78 | MLX5E_TC_FLOW_SLOW = BIT(MLX5E_TC_FLOW_BASE + 3), | |
79 | MLX5E_TC_FLOW_DUP = BIT(MLX5E_TC_FLOW_BASE + 4), | |
ef06c9ee | 80 | MLX5E_TC_FLOW_NOT_READY = BIT(MLX5E_TC_FLOW_BASE + 5), |
65ba8fb7 OG |
81 | }; |
82 | ||
e4ad91f2 CM |
83 | #define MLX5E_TC_MAX_SPLITS 1 |
84 | ||
79baaec7 EB |
85 | /* Helper struct for accessing a struct containing list_head array. |
86 | * Containing struct | |
87 | * |- Helper array | |
88 | * [0] Helper item 0 | |
89 | * |- list_head item 0 | |
90 | * |- index (0) | |
91 | * [1] Helper item 1 | |
92 | * |- list_head item 1 | |
93 | * |- index (1) | |
94 | * To access the containing struct from one of the list_head items: | |
95 | * 1. Get the helper item from the list_head item using | |
96 | * helper item = | |
97 | * container_of(list_head item, helper struct type, list_head field) | |
98 | * 2. Get the contining struct from the helper item and its index in the array: | |
99 | * containing struct = | |
100 | * container_of(helper item, containing struct type, helper field[index]) | |
101 | */ | |
102 | struct encap_flow_item { | |
103 | struct list_head list; | |
104 | int index; | |
105 | }; | |
106 | ||
e8f887ac AV |
107 | struct mlx5e_tc_flow { |
108 | struct rhash_head node; | |
655dc3d2 | 109 | struct mlx5e_priv *priv; |
e8f887ac | 110 | u64 cookie; |
5dbe906f | 111 | u16 flags; |
e4ad91f2 | 112 | struct mlx5_flow_handle *rule[MLX5E_TC_MAX_SPLITS + 1]; |
79baaec7 EB |
113 | /* Flow can be associated with multiple encap IDs. |
114 | * The number of encaps is bounded by the number of supported | |
115 | * destinations. | |
116 | */ | |
117 | struct encap_flow_item encaps[MLX5_MAX_FLOW_FWD_VPORTS]; | |
04de7dda | 118 | struct mlx5e_tc_flow *peer_flow; |
11c9c548 | 119 | struct list_head mod_hdr; /* flows sharing the same mod hdr ID */ |
5c65c564 | 120 | struct list_head hairpin; /* flows sharing the same hairpin */ |
04de7dda | 121 | struct list_head peer; /* flows with peer flow */ |
b4a23329 | 122 | struct list_head unready; /* flows not ready to be offloaded (e.g due to missing route) */ |
3bc4b7bf OG |
123 | union { |
124 | struct mlx5_esw_flow_attr esw_attr[0]; | |
125 | struct mlx5_nic_flow_attr nic_attr[0]; | |
126 | }; | |
e8f887ac AV |
127 | }; |
128 | ||
17091853 | 129 | struct mlx5e_tc_flow_parse_attr { |
1f6da306 | 130 | const struct ip_tunnel_info *tun_info[MLX5_MAX_FLOW_FWD_VPORTS]; |
d11afc26 | 131 | struct net_device *filter_dev; |
17091853 | 132 | struct mlx5_flow_spec spec; |
d79b6df6 | 133 | int num_mod_hdr_actions; |
218d05ce | 134 | int max_mod_hdr_actions; |
d79b6df6 | 135 | void *mod_hdr_actions; |
98b66cb1 | 136 | int mirred_ifindex[MLX5_MAX_FLOW_FWD_VPORTS]; |
17091853 OG |
137 | }; |
138 | ||
acff797c | 139 | #define MLX5E_TC_TABLE_NUM_GROUPS 4 |
b3a433de | 140 | #define MLX5E_TC_TABLE_MAX_GROUP_SIZE BIT(16) |
e8f887ac | 141 | |
77ab67b7 OG |
142 | struct mlx5e_hairpin { |
143 | struct mlx5_hairpin *pair; | |
144 | ||
145 | struct mlx5_core_dev *func_mdev; | |
3f6d08d1 | 146 | struct mlx5e_priv *func_priv; |
77ab67b7 OG |
147 | u32 tdn; |
148 | u32 tirn; | |
3f6d08d1 OG |
149 | |
150 | int num_channels; | |
151 | struct mlx5e_rqt indir_rqt; | |
152 | u32 indir_tirn[MLX5E_NUM_INDIR_TIRS]; | |
153 | struct mlx5e_ttc_table ttc; | |
77ab67b7 OG |
154 | }; |
155 | ||
5c65c564 OG |
156 | struct mlx5e_hairpin_entry { |
157 | /* a node of a hash table which keeps all the hairpin entries */ | |
158 | struct hlist_node hairpin_hlist; | |
159 | ||
160 | /* flows sharing the same hairpin */ | |
161 | struct list_head flows; | |
162 | ||
d8822868 | 163 | u16 peer_vhca_id; |
106be53b | 164 | u8 prio; |
5c65c564 OG |
165 | struct mlx5e_hairpin *hp; |
166 | }; | |
167 | ||
11c9c548 OG |
168 | struct mod_hdr_key { |
169 | int num_actions; | |
170 | void *actions; | |
171 | }; | |
172 | ||
173 | struct mlx5e_mod_hdr_entry { | |
174 | /* a node of a hash table which keeps all the mod_hdr entries */ | |
175 | struct hlist_node mod_hdr_hlist; | |
176 | ||
177 | /* flows sharing the same mod_hdr entry */ | |
178 | struct list_head flows; | |
179 | ||
180 | struct mod_hdr_key key; | |
181 | ||
182 | u32 mod_hdr_id; | |
183 | }; | |
184 | ||
185 | #define MLX5_MH_ACT_SZ MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto) | |
186 | ||
187 | static inline u32 hash_mod_hdr_info(struct mod_hdr_key *key) | |
188 | { | |
189 | return jhash(key->actions, | |
190 | key->num_actions * MLX5_MH_ACT_SZ, 0); | |
191 | } | |
192 | ||
193 | static inline int cmp_mod_hdr_info(struct mod_hdr_key *a, | |
194 | struct mod_hdr_key *b) | |
195 | { | |
196 | if (a->num_actions != b->num_actions) | |
197 | return 1; | |
198 | ||
199 | return memcmp(a->actions, b->actions, a->num_actions * MLX5_MH_ACT_SZ); | |
200 | } | |
201 | ||
202 | static int mlx5e_attach_mod_hdr(struct mlx5e_priv *priv, | |
203 | struct mlx5e_tc_flow *flow, | |
204 | struct mlx5e_tc_flow_parse_attr *parse_attr) | |
205 | { | |
206 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
207 | int num_actions, actions_size, namespace, err; | |
208 | struct mlx5e_mod_hdr_entry *mh; | |
209 | struct mod_hdr_key key; | |
210 | bool found = false; | |
211 | u32 hash_key; | |
212 | ||
213 | num_actions = parse_attr->num_mod_hdr_actions; | |
214 | actions_size = MLX5_MH_ACT_SZ * num_actions; | |
215 | ||
216 | key.actions = parse_attr->mod_hdr_actions; | |
217 | key.num_actions = num_actions; | |
218 | ||
219 | hash_key = hash_mod_hdr_info(&key); | |
220 | ||
221 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { | |
222 | namespace = MLX5_FLOW_NAMESPACE_FDB; | |
223 | hash_for_each_possible(esw->offloads.mod_hdr_tbl, mh, | |
224 | mod_hdr_hlist, hash_key) { | |
225 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
226 | found = true; | |
227 | break; | |
228 | } | |
229 | } | |
230 | } else { | |
231 | namespace = MLX5_FLOW_NAMESPACE_KERNEL; | |
232 | hash_for_each_possible(priv->fs.tc.mod_hdr_tbl, mh, | |
233 | mod_hdr_hlist, hash_key) { | |
234 | if (!cmp_mod_hdr_info(&mh->key, &key)) { | |
235 | found = true; | |
236 | break; | |
237 | } | |
238 | } | |
239 | } | |
240 | ||
241 | if (found) | |
242 | goto attach_flow; | |
243 | ||
244 | mh = kzalloc(sizeof(*mh) + actions_size, GFP_KERNEL); | |
245 | if (!mh) | |
246 | return -ENOMEM; | |
247 | ||
248 | mh->key.actions = (void *)mh + sizeof(*mh); | |
249 | memcpy(mh->key.actions, key.actions, actions_size); | |
250 | mh->key.num_actions = num_actions; | |
251 | INIT_LIST_HEAD(&mh->flows); | |
252 | ||
253 | err = mlx5_modify_header_alloc(priv->mdev, namespace, | |
254 | mh->key.num_actions, | |
255 | mh->key.actions, | |
256 | &mh->mod_hdr_id); | |
257 | if (err) | |
258 | goto out_err; | |
259 | ||
260 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
261 | hash_add(esw->offloads.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
262 | else | |
263 | hash_add(priv->fs.tc.mod_hdr_tbl, &mh->mod_hdr_hlist, hash_key); | |
264 | ||
265 | attach_flow: | |
266 | list_add(&flow->mod_hdr, &mh->flows); | |
267 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
268 | flow->esw_attr->mod_hdr_id = mh->mod_hdr_id; | |
269 | else | |
270 | flow->nic_attr->mod_hdr_id = mh->mod_hdr_id; | |
271 | ||
272 | return 0; | |
273 | ||
274 | out_err: | |
275 | kfree(mh); | |
276 | return err; | |
277 | } | |
278 | ||
279 | static void mlx5e_detach_mod_hdr(struct mlx5e_priv *priv, | |
280 | struct mlx5e_tc_flow *flow) | |
281 | { | |
282 | struct list_head *next = flow->mod_hdr.next; | |
283 | ||
284 | list_del(&flow->mod_hdr); | |
285 | ||
286 | if (list_empty(next)) { | |
287 | struct mlx5e_mod_hdr_entry *mh; | |
288 | ||
289 | mh = list_entry(next, struct mlx5e_mod_hdr_entry, flows); | |
290 | ||
291 | mlx5_modify_header_dealloc(priv->mdev, mh->mod_hdr_id); | |
292 | hash_del(&mh->mod_hdr_hlist); | |
293 | kfree(mh); | |
294 | } | |
295 | } | |
296 | ||
77ab67b7 OG |
297 | static |
298 | struct mlx5_core_dev *mlx5e_hairpin_get_mdev(struct net *net, int ifindex) | |
299 | { | |
300 | struct net_device *netdev; | |
301 | struct mlx5e_priv *priv; | |
302 | ||
303 | netdev = __dev_get_by_index(net, ifindex); | |
304 | priv = netdev_priv(netdev); | |
305 | return priv->mdev; | |
306 | } | |
307 | ||
308 | static int mlx5e_hairpin_create_transport(struct mlx5e_hairpin *hp) | |
309 | { | |
310 | u32 in[MLX5_ST_SZ_DW(create_tir_in)] = {0}; | |
311 | void *tirc; | |
312 | int err; | |
313 | ||
314 | err = mlx5_core_alloc_transport_domain(hp->func_mdev, &hp->tdn); | |
315 | if (err) | |
316 | goto alloc_tdn_err; | |
317 | ||
318 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
319 | ||
320 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_DIRECT); | |
ddae74ac | 321 | MLX5_SET(tirc, tirc, inline_rqn, hp->pair->rqn[0]); |
77ab67b7 OG |
322 | MLX5_SET(tirc, tirc, transport_domain, hp->tdn); |
323 | ||
324 | err = mlx5_core_create_tir(hp->func_mdev, in, MLX5_ST_SZ_BYTES(create_tir_in), &hp->tirn); | |
325 | if (err) | |
326 | goto create_tir_err; | |
327 | ||
328 | return 0; | |
329 | ||
330 | create_tir_err: | |
331 | mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); | |
332 | alloc_tdn_err: | |
333 | return err; | |
334 | } | |
335 | ||
336 | static void mlx5e_hairpin_destroy_transport(struct mlx5e_hairpin *hp) | |
337 | { | |
338 | mlx5_core_destroy_tir(hp->func_mdev, hp->tirn); | |
339 | mlx5_core_dealloc_transport_domain(hp->func_mdev, hp->tdn); | |
340 | } | |
341 | ||
3f6d08d1 OG |
342 | static void mlx5e_hairpin_fill_rqt_rqns(struct mlx5e_hairpin *hp, void *rqtc) |
343 | { | |
344 | u32 indirection_rqt[MLX5E_INDIR_RQT_SIZE], rqn; | |
345 | struct mlx5e_priv *priv = hp->func_priv; | |
346 | int i, ix, sz = MLX5E_INDIR_RQT_SIZE; | |
347 | ||
348 | mlx5e_build_default_indir_rqt(indirection_rqt, sz, | |
349 | hp->num_channels); | |
350 | ||
351 | for (i = 0; i < sz; i++) { | |
352 | ix = i; | |
bbeb53b8 | 353 | if (priv->rss_params.hfunc == ETH_RSS_HASH_XOR) |
3f6d08d1 OG |
354 | ix = mlx5e_bits_invert(i, ilog2(sz)); |
355 | ix = indirection_rqt[ix]; | |
356 | rqn = hp->pair->rqn[ix]; | |
357 | MLX5_SET(rqtc, rqtc, rq_num[i], rqn); | |
358 | } | |
359 | } | |
360 | ||
361 | static int mlx5e_hairpin_create_indirect_rqt(struct mlx5e_hairpin *hp) | |
362 | { | |
363 | int inlen, err, sz = MLX5E_INDIR_RQT_SIZE; | |
364 | struct mlx5e_priv *priv = hp->func_priv; | |
365 | struct mlx5_core_dev *mdev = priv->mdev; | |
366 | void *rqtc; | |
367 | u32 *in; | |
368 | ||
369 | inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz; | |
370 | in = kvzalloc(inlen, GFP_KERNEL); | |
371 | if (!in) | |
372 | return -ENOMEM; | |
373 | ||
374 | rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); | |
375 | ||
376 | MLX5_SET(rqtc, rqtc, rqt_actual_size, sz); | |
377 | MLX5_SET(rqtc, rqtc, rqt_max_size, sz); | |
378 | ||
379 | mlx5e_hairpin_fill_rqt_rqns(hp, rqtc); | |
380 | ||
381 | err = mlx5_core_create_rqt(mdev, in, inlen, &hp->indir_rqt.rqtn); | |
382 | if (!err) | |
383 | hp->indir_rqt.enabled = true; | |
384 | ||
385 | kvfree(in); | |
386 | return err; | |
387 | } | |
388 | ||
389 | static int mlx5e_hairpin_create_indirect_tirs(struct mlx5e_hairpin *hp) | |
390 | { | |
391 | struct mlx5e_priv *priv = hp->func_priv; | |
392 | u32 in[MLX5_ST_SZ_DW(create_tir_in)]; | |
393 | int tt, i, err; | |
394 | void *tirc; | |
395 | ||
396 | for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) { | |
d930ac79 AL |
397 | struct mlx5e_tirc_config ttconfig = mlx5e_tirc_get_default_config(tt); |
398 | ||
3f6d08d1 OG |
399 | memset(in, 0, MLX5_ST_SZ_BYTES(create_tir_in)); |
400 | tirc = MLX5_ADDR_OF(create_tir_in, in, ctx); | |
401 | ||
402 | MLX5_SET(tirc, tirc, transport_domain, hp->tdn); | |
403 | MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT); | |
404 | MLX5_SET(tirc, tirc, indirect_table, hp->indir_rqt.rqtn); | |
bbeb53b8 AL |
405 | mlx5e_build_indir_tir_ctx_hash(&priv->rss_params, &ttconfig, tirc, false); |
406 | ||
3f6d08d1 OG |
407 | err = mlx5_core_create_tir(hp->func_mdev, in, |
408 | MLX5_ST_SZ_BYTES(create_tir_in), &hp->indir_tirn[tt]); | |
409 | if (err) { | |
410 | mlx5_core_warn(hp->func_mdev, "create indirect tirs failed, %d\n", err); | |
411 | goto err_destroy_tirs; | |
412 | } | |
413 | } | |
414 | return 0; | |
415 | ||
416 | err_destroy_tirs: | |
417 | for (i = 0; i < tt; i++) | |
418 | mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[i]); | |
419 | return err; | |
420 | } | |
421 | ||
422 | static void mlx5e_hairpin_destroy_indirect_tirs(struct mlx5e_hairpin *hp) | |
423 | { | |
424 | int tt; | |
425 | ||
426 | for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) | |
427 | mlx5_core_destroy_tir(hp->func_mdev, hp->indir_tirn[tt]); | |
428 | } | |
429 | ||
430 | static void mlx5e_hairpin_set_ttc_params(struct mlx5e_hairpin *hp, | |
431 | struct ttc_params *ttc_params) | |
432 | { | |
433 | struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr; | |
434 | int tt; | |
435 | ||
436 | memset(ttc_params, 0, sizeof(*ttc_params)); | |
437 | ||
438 | ttc_params->any_tt_tirn = hp->tirn; | |
439 | ||
440 | for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) | |
441 | ttc_params->indir_tirn[tt] = hp->indir_tirn[tt]; | |
442 | ||
443 | ft_attr->max_fte = MLX5E_NUM_TT; | |
444 | ft_attr->level = MLX5E_TC_TTC_FT_LEVEL; | |
445 | ft_attr->prio = MLX5E_TC_PRIO; | |
446 | } | |
447 | ||
448 | static int mlx5e_hairpin_rss_init(struct mlx5e_hairpin *hp) | |
449 | { | |
450 | struct mlx5e_priv *priv = hp->func_priv; | |
451 | struct ttc_params ttc_params; | |
452 | int err; | |
453 | ||
454 | err = mlx5e_hairpin_create_indirect_rqt(hp); | |
455 | if (err) | |
456 | return err; | |
457 | ||
458 | err = mlx5e_hairpin_create_indirect_tirs(hp); | |
459 | if (err) | |
460 | goto err_create_indirect_tirs; | |
461 | ||
462 | mlx5e_hairpin_set_ttc_params(hp, &ttc_params); | |
463 | err = mlx5e_create_ttc_table(priv, &ttc_params, &hp->ttc); | |
464 | if (err) | |
465 | goto err_create_ttc_table; | |
466 | ||
467 | netdev_dbg(priv->netdev, "add hairpin: using %d channels rss ttc table id %x\n", | |
468 | hp->num_channels, hp->ttc.ft.t->id); | |
469 | ||
470 | return 0; | |
471 | ||
472 | err_create_ttc_table: | |
473 | mlx5e_hairpin_destroy_indirect_tirs(hp); | |
474 | err_create_indirect_tirs: | |
475 | mlx5e_destroy_rqt(priv, &hp->indir_rqt); | |
476 | ||
477 | return err; | |
478 | } | |
479 | ||
480 | static void mlx5e_hairpin_rss_cleanup(struct mlx5e_hairpin *hp) | |
481 | { | |
482 | struct mlx5e_priv *priv = hp->func_priv; | |
483 | ||
484 | mlx5e_destroy_ttc_table(priv, &hp->ttc); | |
485 | mlx5e_hairpin_destroy_indirect_tirs(hp); | |
486 | mlx5e_destroy_rqt(priv, &hp->indir_rqt); | |
487 | } | |
488 | ||
77ab67b7 OG |
489 | static struct mlx5e_hairpin * |
490 | mlx5e_hairpin_create(struct mlx5e_priv *priv, struct mlx5_hairpin_params *params, | |
491 | int peer_ifindex) | |
492 | { | |
493 | struct mlx5_core_dev *func_mdev, *peer_mdev; | |
494 | struct mlx5e_hairpin *hp; | |
495 | struct mlx5_hairpin *pair; | |
496 | int err; | |
497 | ||
498 | hp = kzalloc(sizeof(*hp), GFP_KERNEL); | |
499 | if (!hp) | |
500 | return ERR_PTR(-ENOMEM); | |
501 | ||
502 | func_mdev = priv->mdev; | |
503 | peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); | |
504 | ||
505 | pair = mlx5_core_hairpin_create(func_mdev, peer_mdev, params); | |
506 | if (IS_ERR(pair)) { | |
507 | err = PTR_ERR(pair); | |
508 | goto create_pair_err; | |
509 | } | |
510 | hp->pair = pair; | |
511 | hp->func_mdev = func_mdev; | |
3f6d08d1 OG |
512 | hp->func_priv = priv; |
513 | hp->num_channels = params->num_channels; | |
77ab67b7 OG |
514 | |
515 | err = mlx5e_hairpin_create_transport(hp); | |
516 | if (err) | |
517 | goto create_transport_err; | |
518 | ||
3f6d08d1 OG |
519 | if (hp->num_channels > 1) { |
520 | err = mlx5e_hairpin_rss_init(hp); | |
521 | if (err) | |
522 | goto rss_init_err; | |
523 | } | |
524 | ||
77ab67b7 OG |
525 | return hp; |
526 | ||
3f6d08d1 OG |
527 | rss_init_err: |
528 | mlx5e_hairpin_destroy_transport(hp); | |
77ab67b7 OG |
529 | create_transport_err: |
530 | mlx5_core_hairpin_destroy(hp->pair); | |
531 | create_pair_err: | |
532 | kfree(hp); | |
533 | return ERR_PTR(err); | |
534 | } | |
535 | ||
536 | static void mlx5e_hairpin_destroy(struct mlx5e_hairpin *hp) | |
537 | { | |
3f6d08d1 OG |
538 | if (hp->num_channels > 1) |
539 | mlx5e_hairpin_rss_cleanup(hp); | |
77ab67b7 OG |
540 | mlx5e_hairpin_destroy_transport(hp); |
541 | mlx5_core_hairpin_destroy(hp->pair); | |
542 | kvfree(hp); | |
543 | } | |
544 | ||
106be53b OG |
545 | static inline u32 hash_hairpin_info(u16 peer_vhca_id, u8 prio) |
546 | { | |
547 | return (peer_vhca_id << 16 | prio); | |
548 | } | |
549 | ||
5c65c564 | 550 | static struct mlx5e_hairpin_entry *mlx5e_hairpin_get(struct mlx5e_priv *priv, |
106be53b | 551 | u16 peer_vhca_id, u8 prio) |
5c65c564 OG |
552 | { |
553 | struct mlx5e_hairpin_entry *hpe; | |
106be53b | 554 | u32 hash_key = hash_hairpin_info(peer_vhca_id, prio); |
5c65c564 OG |
555 | |
556 | hash_for_each_possible(priv->fs.tc.hairpin_tbl, hpe, | |
106be53b OG |
557 | hairpin_hlist, hash_key) { |
558 | if (hpe->peer_vhca_id == peer_vhca_id && hpe->prio == prio) | |
5c65c564 OG |
559 | return hpe; |
560 | } | |
561 | ||
562 | return NULL; | |
563 | } | |
564 | ||
106be53b OG |
565 | #define UNKNOWN_MATCH_PRIO 8 |
566 | ||
567 | static int mlx5e_hairpin_get_prio(struct mlx5e_priv *priv, | |
e98bedf5 EB |
568 | struct mlx5_flow_spec *spec, u8 *match_prio, |
569 | struct netlink_ext_ack *extack) | |
106be53b OG |
570 | { |
571 | void *headers_c, *headers_v; | |
572 | u8 prio_val, prio_mask = 0; | |
573 | bool vlan_present; | |
574 | ||
575 | #ifdef CONFIG_MLX5_CORE_EN_DCB | |
576 | if (priv->dcbx_dp.trust_state != MLX5_QPTS_TRUST_PCP) { | |
e98bedf5 EB |
577 | NL_SET_ERR_MSG_MOD(extack, |
578 | "only PCP trust state supported for hairpin"); | |
106be53b OG |
579 | return -EOPNOTSUPP; |
580 | } | |
581 | #endif | |
582 | headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); | |
583 | headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); | |
584 | ||
585 | vlan_present = MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag); | |
586 | if (vlan_present) { | |
587 | prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio); | |
588 | prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio); | |
589 | } | |
590 | ||
591 | if (!vlan_present || !prio_mask) { | |
592 | prio_val = UNKNOWN_MATCH_PRIO; | |
593 | } else if (prio_mask != 0x7) { | |
e98bedf5 EB |
594 | NL_SET_ERR_MSG_MOD(extack, |
595 | "masked priority match not supported for hairpin"); | |
106be53b OG |
596 | return -EOPNOTSUPP; |
597 | } | |
598 | ||
599 | *match_prio = prio_val; | |
600 | return 0; | |
601 | } | |
602 | ||
5c65c564 OG |
603 | static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv, |
604 | struct mlx5e_tc_flow *flow, | |
e98bedf5 EB |
605 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
606 | struct netlink_ext_ack *extack) | |
5c65c564 | 607 | { |
98b66cb1 | 608 | int peer_ifindex = parse_attr->mirred_ifindex[0]; |
5c65c564 | 609 | struct mlx5_hairpin_params params; |
d8822868 | 610 | struct mlx5_core_dev *peer_mdev; |
5c65c564 OG |
611 | struct mlx5e_hairpin_entry *hpe; |
612 | struct mlx5e_hairpin *hp; | |
3f6d08d1 OG |
613 | u64 link_speed64; |
614 | u32 link_speed; | |
106be53b | 615 | u8 match_prio; |
d8822868 | 616 | u16 peer_id; |
5c65c564 OG |
617 | int err; |
618 | ||
d8822868 OG |
619 | peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex); |
620 | if (!MLX5_CAP_GEN(priv->mdev, hairpin) || !MLX5_CAP_GEN(peer_mdev, hairpin)) { | |
e98bedf5 | 621 | NL_SET_ERR_MSG_MOD(extack, "hairpin is not supported"); |
5c65c564 OG |
622 | return -EOPNOTSUPP; |
623 | } | |
624 | ||
d8822868 | 625 | peer_id = MLX5_CAP_GEN(peer_mdev, vhca_id); |
e98bedf5 EB |
626 | err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio, |
627 | extack); | |
106be53b OG |
628 | if (err) |
629 | return err; | |
630 | hpe = mlx5e_hairpin_get(priv, peer_id, match_prio); | |
5c65c564 OG |
631 | if (hpe) |
632 | goto attach_flow; | |
633 | ||
634 | hpe = kzalloc(sizeof(*hpe), GFP_KERNEL); | |
635 | if (!hpe) | |
636 | return -ENOMEM; | |
637 | ||
638 | INIT_LIST_HEAD(&hpe->flows); | |
d8822868 | 639 | hpe->peer_vhca_id = peer_id; |
106be53b | 640 | hpe->prio = match_prio; |
5c65c564 OG |
641 | |
642 | params.log_data_size = 15; | |
643 | params.log_data_size = min_t(u8, params.log_data_size, | |
644 | MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz)); | |
645 | params.log_data_size = max_t(u8, params.log_data_size, | |
646 | MLX5_CAP_GEN(priv->mdev, log_min_hairpin_wq_data_sz)); | |
5c65c564 | 647 | |
eb9180f7 OG |
648 | params.log_num_packets = params.log_data_size - |
649 | MLX5_MPWRQ_MIN_LOG_STRIDE_SZ(priv->mdev); | |
650 | params.log_num_packets = min_t(u8, params.log_num_packets, | |
651 | MLX5_CAP_GEN(priv->mdev, log_max_hairpin_num_packets)); | |
652 | ||
653 | params.q_counter = priv->q_counter; | |
3f6d08d1 | 654 | /* set hairpin pair per each 50Gbs share of the link */ |
2c81bfd5 | 655 | mlx5e_port_max_linkspeed(priv->mdev, &link_speed); |
3f6d08d1 OG |
656 | link_speed = max_t(u32, link_speed, 50000); |
657 | link_speed64 = link_speed; | |
658 | do_div(link_speed64, 50000); | |
659 | params.num_channels = link_speed64; | |
660 | ||
5c65c564 OG |
661 | hp = mlx5e_hairpin_create(priv, ¶ms, peer_ifindex); |
662 | if (IS_ERR(hp)) { | |
663 | err = PTR_ERR(hp); | |
664 | goto create_hairpin_err; | |
665 | } | |
666 | ||
eb9180f7 | 667 | netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d (log) data %d packets %d\n", |
27b942fb PP |
668 | hp->tirn, hp->pair->rqn[0], |
669 | dev_name(hp->pair->peer_mdev->device), | |
eb9180f7 | 670 | hp->pair->sqn[0], match_prio, params.log_data_size, params.log_num_packets); |
5c65c564 OG |
671 | |
672 | hpe->hp = hp; | |
106be53b OG |
673 | hash_add(priv->fs.tc.hairpin_tbl, &hpe->hairpin_hlist, |
674 | hash_hairpin_info(peer_id, match_prio)); | |
5c65c564 OG |
675 | |
676 | attach_flow: | |
3f6d08d1 OG |
677 | if (hpe->hp->num_channels > 1) { |
678 | flow->flags |= MLX5E_TC_FLOW_HAIRPIN_RSS; | |
679 | flow->nic_attr->hairpin_ft = hpe->hp->ttc.ft.t; | |
680 | } else { | |
681 | flow->nic_attr->hairpin_tirn = hpe->hp->tirn; | |
682 | } | |
5c65c564 | 683 | list_add(&flow->hairpin, &hpe->flows); |
3f6d08d1 | 684 | |
5c65c564 OG |
685 | return 0; |
686 | ||
687 | create_hairpin_err: | |
688 | kfree(hpe); | |
689 | return err; | |
690 | } | |
691 | ||
692 | static void mlx5e_hairpin_flow_del(struct mlx5e_priv *priv, | |
693 | struct mlx5e_tc_flow *flow) | |
694 | { | |
695 | struct list_head *next = flow->hairpin.next; | |
696 | ||
697 | list_del(&flow->hairpin); | |
698 | ||
699 | /* no more hairpin flows for us, release the hairpin pair */ | |
700 | if (list_empty(next)) { | |
701 | struct mlx5e_hairpin_entry *hpe; | |
702 | ||
703 | hpe = list_entry(next, struct mlx5e_hairpin_entry, flows); | |
704 | ||
705 | netdev_dbg(priv->netdev, "del hairpin: peer %s\n", | |
27b942fb | 706 | dev_name(hpe->hp->pair->peer_mdev->device)); |
5c65c564 OG |
707 | |
708 | mlx5e_hairpin_destroy(hpe->hp); | |
709 | hash_del(&hpe->hairpin_hlist); | |
710 | kfree(hpe); | |
711 | } | |
712 | } | |
713 | ||
c83954ab | 714 | static int |
74491de9 | 715 | mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv, |
17091853 | 716 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
e98bedf5 EB |
717 | struct mlx5e_tc_flow *flow, |
718 | struct netlink_ext_ack *extack) | |
e8f887ac | 719 | { |
bb0ee7dc | 720 | struct mlx5_flow_context *flow_context = &parse_attr->spec.flow_context; |
aa0cbbae | 721 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
aad7e08d | 722 | struct mlx5_core_dev *dev = priv->mdev; |
5c65c564 | 723 | struct mlx5_flow_destination dest[2] = {}; |
66958ed9 | 724 | struct mlx5_flow_act flow_act = { |
3bc4b7bf | 725 | .action = attr->action, |
60786f09 | 726 | .reformat_id = 0, |
bb0ee7dc | 727 | .flags = FLOW_ACT_NO_APPEND, |
66958ed9 | 728 | }; |
aad7e08d | 729 | struct mlx5_fc *counter = NULL; |
e8f887ac | 730 | bool table_created = false; |
5c65c564 | 731 | int err, dest_ix = 0; |
e8f887ac | 732 | |
bb0ee7dc JL |
733 | flow_context->flags |= FLOW_CONTEXT_HAS_TAG; |
734 | flow_context->flow_tag = attr->flow_tag; | |
735 | ||
3f6d08d1 | 736 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) { |
e98bedf5 | 737 | err = mlx5e_hairpin_flow_add(priv, flow, parse_attr, extack); |
3f6d08d1 | 738 | if (err) { |
3f6d08d1 OG |
739 | goto err_add_hairpin_flow; |
740 | } | |
741 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN_RSS) { | |
742 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
743 | dest[dest_ix].ft = attr->hairpin_ft; | |
744 | } else { | |
5c65c564 OG |
745 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_TIR; |
746 | dest[dest_ix].tir_num = attr->hairpin_tirn; | |
5c65c564 OG |
747 | } |
748 | dest_ix++; | |
3f6d08d1 OG |
749 | } else if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { |
750 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; | |
751 | dest[dest_ix].ft = priv->fs.vlan.ft.t; | |
752 | dest_ix++; | |
5c65c564 | 753 | } |
aad7e08d | 754 | |
5c65c564 OG |
755 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
756 | counter = mlx5_fc_create(dev, true); | |
757 | if (IS_ERR(counter)) { | |
c83954ab | 758 | err = PTR_ERR(counter); |
5c65c564 OG |
759 | goto err_fc_create; |
760 | } | |
761 | dest[dest_ix].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; | |
171c7625 | 762 | dest[dest_ix].counter_id = mlx5_fc_id(counter); |
5c65c564 | 763 | dest_ix++; |
b8aee822 | 764 | attr->counter = counter; |
aad7e08d AV |
765 | } |
766 | ||
2f4fe4ca | 767 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
3099eb5a | 768 | err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); |
d7e75a32 | 769 | flow_act.modify_id = attr->mod_hdr_id; |
2f4fe4ca | 770 | kfree(parse_attr->mod_hdr_actions); |
c83954ab | 771 | if (err) |
2f4fe4ca | 772 | goto err_create_mod_hdr_id; |
2f4fe4ca OG |
773 | } |
774 | ||
acff797c | 775 | if (IS_ERR_OR_NULL(priv->fs.tc.t)) { |
21b9c144 OG |
776 | int tc_grp_size, tc_tbl_size; |
777 | u32 max_flow_counter; | |
778 | ||
779 | max_flow_counter = (MLX5_CAP_GEN(dev, max_flow_counter_31_16) << 16) | | |
780 | MLX5_CAP_GEN(dev, max_flow_counter_15_0); | |
781 | ||
782 | tc_grp_size = min_t(int, max_flow_counter, MLX5E_TC_TABLE_MAX_GROUP_SIZE); | |
783 | ||
784 | tc_tbl_size = min_t(int, tc_grp_size * MLX5E_TC_TABLE_NUM_GROUPS, | |
785 | BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev, log_max_ft_size))); | |
786 | ||
acff797c MG |
787 | priv->fs.tc.t = |
788 | mlx5_create_auto_grouped_flow_table(priv->fs.ns, | |
789 | MLX5E_TC_PRIO, | |
21b9c144 | 790 | tc_tbl_size, |
acff797c | 791 | MLX5E_TC_TABLE_NUM_GROUPS, |
3f6d08d1 | 792 | MLX5E_TC_FT_LEVEL, 0); |
acff797c | 793 | if (IS_ERR(priv->fs.tc.t)) { |
e98bedf5 EB |
794 | NL_SET_ERR_MSG_MOD(extack, |
795 | "Failed to create tc offload table\n"); | |
e8f887ac AV |
796 | netdev_err(priv->netdev, |
797 | "Failed to create tc offload table\n"); | |
c83954ab | 798 | err = PTR_ERR(priv->fs.tc.t); |
aad7e08d | 799 | goto err_create_ft; |
e8f887ac AV |
800 | } |
801 | ||
802 | table_created = true; | |
803 | } | |
804 | ||
38aa51c1 | 805 | if (attr->match_level != MLX5_MATCH_NONE) |
d4a18e16 | 806 | parse_attr->spec.match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS; |
38aa51c1 | 807 | |
c83954ab RL |
808 | flow->rule[0] = mlx5_add_flow_rules(priv->fs.tc.t, &parse_attr->spec, |
809 | &flow_act, dest, dest_ix); | |
aad7e08d | 810 | |
c83954ab RL |
811 | if (IS_ERR(flow->rule[0])) { |
812 | err = PTR_ERR(flow->rule[0]); | |
aad7e08d | 813 | goto err_add_rule; |
c83954ab | 814 | } |
aad7e08d | 815 | |
c83954ab | 816 | return 0; |
e8f887ac | 817 | |
aad7e08d AV |
818 | err_add_rule: |
819 | if (table_created) { | |
acff797c MG |
820 | mlx5_destroy_flow_table(priv->fs.tc.t); |
821 | priv->fs.tc.t = NULL; | |
e8f887ac | 822 | } |
aad7e08d | 823 | err_create_ft: |
2f4fe4ca | 824 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
3099eb5a | 825 | mlx5e_detach_mod_hdr(priv, flow); |
2f4fe4ca | 826 | err_create_mod_hdr_id: |
aad7e08d | 827 | mlx5_fc_destroy(dev, counter); |
5c65c564 OG |
828 | err_fc_create: |
829 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) | |
830 | mlx5e_hairpin_flow_del(priv, flow); | |
831 | err_add_hairpin_flow: | |
c83954ab | 832 | return err; |
e8f887ac AV |
833 | } |
834 | ||
d85cdccb OG |
835 | static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv, |
836 | struct mlx5e_tc_flow *flow) | |
837 | { | |
513f8f7f | 838 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
d85cdccb OG |
839 | struct mlx5_fc *counter = NULL; |
840 | ||
b8aee822 | 841 | counter = attr->counter; |
e4ad91f2 | 842 | mlx5_del_flow_rules(flow->rule[0]); |
aa0cbbae | 843 | mlx5_fc_destroy(priv->mdev, counter); |
d85cdccb | 844 | |
d9ee0491 | 845 | if (!mlx5e_tc_num_filters(priv, MLX5E_TC_NIC_OFFLOAD) && priv->fs.tc.t) { |
d85cdccb OG |
846 | mlx5_destroy_flow_table(priv->fs.tc.t); |
847 | priv->fs.tc.t = NULL; | |
848 | } | |
2f4fe4ca | 849 | |
513f8f7f | 850 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
3099eb5a | 851 | mlx5e_detach_mod_hdr(priv, flow); |
5c65c564 OG |
852 | |
853 | if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) | |
854 | mlx5e_hairpin_flow_del(priv, flow); | |
d85cdccb OG |
855 | } |
856 | ||
aa0cbbae | 857 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
8c4dc42b | 858 | struct mlx5e_tc_flow *flow, int out_index); |
aa0cbbae | 859 | |
3c37745e | 860 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
e98bedf5 | 861 | struct mlx5e_tc_flow *flow, |
733d4f36 RD |
862 | struct net_device *mirred_dev, |
863 | int out_index, | |
8c4dc42b | 864 | struct netlink_ext_ack *extack, |
0ad060ee RD |
865 | struct net_device **encap_dev, |
866 | bool *encap_valid); | |
3c37745e | 867 | |
6d2a3ed0 OG |
868 | static struct mlx5_flow_handle * |
869 | mlx5e_tc_offload_fdb_rules(struct mlx5_eswitch *esw, | |
870 | struct mlx5e_tc_flow *flow, | |
871 | struct mlx5_flow_spec *spec, | |
872 | struct mlx5_esw_flow_attr *attr) | |
873 | { | |
874 | struct mlx5_flow_handle *rule; | |
875 | ||
876 | rule = mlx5_eswitch_add_offloaded_rule(esw, spec, attr); | |
877 | if (IS_ERR(rule)) | |
878 | return rule; | |
879 | ||
e85e02ba | 880 | if (attr->split_count) { |
6d2a3ed0 OG |
881 | flow->rule[1] = mlx5_eswitch_add_fwd_rule(esw, spec, attr); |
882 | if (IS_ERR(flow->rule[1])) { | |
883 | mlx5_eswitch_del_offloaded_rule(esw, rule, attr); | |
884 | return flow->rule[1]; | |
885 | } | |
886 | } | |
887 | ||
888 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; | |
889 | return rule; | |
890 | } | |
891 | ||
892 | static void | |
893 | mlx5e_tc_unoffload_fdb_rules(struct mlx5_eswitch *esw, | |
894 | struct mlx5e_tc_flow *flow, | |
895 | struct mlx5_esw_flow_attr *attr) | |
896 | { | |
897 | flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED; | |
898 | ||
e85e02ba | 899 | if (attr->split_count) |
6d2a3ed0 OG |
900 | mlx5_eswitch_del_fwd_rule(esw, flow->rule[1], attr); |
901 | ||
902 | mlx5_eswitch_del_offloaded_rule(esw, flow->rule[0], attr); | |
903 | } | |
904 | ||
5dbe906f PB |
905 | static struct mlx5_flow_handle * |
906 | mlx5e_tc_offload_to_slow_path(struct mlx5_eswitch *esw, | |
907 | struct mlx5e_tc_flow *flow, | |
908 | struct mlx5_flow_spec *spec, | |
909 | struct mlx5_esw_flow_attr *slow_attr) | |
910 | { | |
911 | struct mlx5_flow_handle *rule; | |
912 | ||
913 | memcpy(slow_attr, flow->esw_attr, sizeof(*slow_attr)); | |
154e62ab | 914 | slow_attr->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
2be09de7 | 915 | slow_attr->split_count = 0; |
154e62ab | 916 | slow_attr->dest_chain = FDB_SLOW_PATH_CHAIN; |
5dbe906f PB |
917 | |
918 | rule = mlx5e_tc_offload_fdb_rules(esw, flow, spec, slow_attr); | |
919 | if (!IS_ERR(rule)) | |
920 | flow->flags |= MLX5E_TC_FLOW_SLOW; | |
921 | ||
922 | return rule; | |
923 | } | |
924 | ||
925 | static void | |
926 | mlx5e_tc_unoffload_from_slow_path(struct mlx5_eswitch *esw, | |
927 | struct mlx5e_tc_flow *flow, | |
928 | struct mlx5_esw_flow_attr *slow_attr) | |
929 | { | |
930 | memcpy(slow_attr, flow->esw_attr, sizeof(*slow_attr)); | |
154e62ab | 931 | slow_attr->action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
2be09de7 | 932 | slow_attr->split_count = 0; |
154e62ab | 933 | slow_attr->dest_chain = FDB_SLOW_PATH_CHAIN; |
5dbe906f PB |
934 | mlx5e_tc_unoffload_fdb_rules(esw, flow, slow_attr); |
935 | flow->flags &= ~MLX5E_TC_FLOW_SLOW; | |
936 | } | |
937 | ||
b4a23329 RD |
938 | static void add_unready_flow(struct mlx5e_tc_flow *flow) |
939 | { | |
940 | struct mlx5_rep_uplink_priv *uplink_priv; | |
941 | struct mlx5e_rep_priv *rpriv; | |
942 | struct mlx5_eswitch *esw; | |
943 | ||
944 | esw = flow->priv->mdev->priv.eswitch; | |
945 | rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); | |
946 | uplink_priv = &rpriv->uplink_priv; | |
947 | ||
948 | flow->flags |= MLX5E_TC_FLOW_NOT_READY; | |
949 | list_add_tail(&flow->unready, &uplink_priv->unready_flows); | |
950 | } | |
951 | ||
952 | static void remove_unready_flow(struct mlx5e_tc_flow *flow) | |
953 | { | |
954 | list_del(&flow->unready); | |
955 | flow->flags &= ~MLX5E_TC_FLOW_NOT_READY; | |
956 | } | |
957 | ||
c83954ab | 958 | static int |
74491de9 | 959 | mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv, |
e98bedf5 EB |
960 | struct mlx5e_tc_flow *flow, |
961 | struct netlink_ext_ack *extack) | |
adb4c123 OG |
962 | { |
963 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
bf07aa73 | 964 | u32 max_chain = mlx5_eswitch_get_chain_range(esw); |
aa0cbbae | 965 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
7040632d | 966 | struct mlx5e_tc_flow_parse_attr *parse_attr = attr->parse_attr; |
bf07aa73 | 967 | u16 max_prio = mlx5_eswitch_get_prio_range(esw); |
3c37745e | 968 | struct net_device *out_dev, *encap_dev = NULL; |
b8aee822 | 969 | struct mlx5_fc *counter = NULL; |
3c37745e OG |
970 | struct mlx5e_rep_priv *rpriv; |
971 | struct mlx5e_priv *out_priv; | |
0ad060ee RD |
972 | bool encap_valid = true; |
973 | int err = 0; | |
f493f155 | 974 | int out_index; |
8b32580d | 975 | |
d14f6f2a OG |
976 | if (!mlx5_eswitch_prios_supported(esw) && attr->prio != 1) { |
977 | NL_SET_ERR_MSG(extack, "E-switch priorities unsupported, upgrade FW"); | |
978 | return -EOPNOTSUPP; | |
979 | } | |
bf07aa73 PB |
980 | |
981 | if (attr->chain > max_chain) { | |
982 | NL_SET_ERR_MSG(extack, "Requested chain is out of supported range"); | |
983 | err = -EOPNOTSUPP; | |
984 | goto err_max_prio_chain; | |
985 | } | |
986 | ||
987 | if (attr->prio > max_prio) { | |
988 | NL_SET_ERR_MSG(extack, "Requested priority is out of supported range"); | |
989 | err = -EOPNOTSUPP; | |
990 | goto err_max_prio_chain; | |
991 | } | |
e52c2802 | 992 | |
f493f155 | 993 | for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) { |
8c4dc42b EB |
994 | int mirred_ifindex; |
995 | ||
f493f155 EB |
996 | if (!(attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP)) |
997 | continue; | |
998 | ||
7040632d | 999 | mirred_ifindex = parse_attr->mirred_ifindex[out_index]; |
3c37745e | 1000 | out_dev = __dev_get_by_index(dev_net(priv->netdev), |
8c4dc42b | 1001 | mirred_ifindex); |
733d4f36 | 1002 | err = mlx5e_attach_encap(priv, flow, out_dev, out_index, |
0ad060ee RD |
1003 | extack, &encap_dev, &encap_valid); |
1004 | if (err) | |
c83954ab | 1005 | goto err_attach_encap; |
0ad060ee | 1006 | |
3c37745e OG |
1007 | out_priv = netdev_priv(encap_dev); |
1008 | rpriv = out_priv->ppriv; | |
1cc26d74 EB |
1009 | attr->dests[out_index].rep = rpriv->rep; |
1010 | attr->dests[out_index].mdev = out_priv->mdev; | |
3c37745e OG |
1011 | } |
1012 | ||
8b32580d | 1013 | err = mlx5_eswitch_add_vlan_action(esw, attr); |
c83954ab | 1014 | if (err) |
aa0cbbae | 1015 | goto err_add_vlan; |
adb4c123 | 1016 | |
d7e75a32 | 1017 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) { |
1a9527bb | 1018 | err = mlx5e_attach_mod_hdr(priv, flow, parse_attr); |
d7e75a32 | 1019 | kfree(parse_attr->mod_hdr_actions); |
c83954ab | 1020 | if (err) |
d7e75a32 | 1021 | goto err_mod_hdr; |
d7e75a32 OG |
1022 | } |
1023 | ||
b8aee822 | 1024 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { |
f9392795 | 1025 | counter = mlx5_fc_create(attr->counter_dev, true); |
b8aee822 | 1026 | if (IS_ERR(counter)) { |
c83954ab | 1027 | err = PTR_ERR(counter); |
b8aee822 MB |
1028 | goto err_create_counter; |
1029 | } | |
1030 | ||
1031 | attr->counter = counter; | |
1032 | } | |
1033 | ||
0ad060ee RD |
1034 | /* we get here if one of the following takes place: |
1035 | * (1) there's no error | |
1036 | * (2) there's an encap action and we don't have valid neigh | |
3c37745e | 1037 | */ |
0ad060ee | 1038 | if (!encap_valid) { |
5dbe906f PB |
1039 | /* continue with goto slow path rule instead */ |
1040 | struct mlx5_esw_flow_attr slow_attr; | |
1041 | ||
1042 | flow->rule[0] = mlx5e_tc_offload_to_slow_path(esw, flow, &parse_attr->spec, &slow_attr); | |
1043 | } else { | |
6d2a3ed0 | 1044 | flow->rule[0] = mlx5e_tc_offload_fdb_rules(esw, flow, &parse_attr->spec, attr); |
3c37745e | 1045 | } |
c83954ab | 1046 | |
5dbe906f PB |
1047 | if (IS_ERR(flow->rule[0])) { |
1048 | err = PTR_ERR(flow->rule[0]); | |
1049 | goto err_add_rule; | |
1050 | } | |
1051 | ||
1052 | return 0; | |
aa0cbbae OG |
1053 | |
1054 | err_add_rule: | |
f9392795 | 1055 | mlx5_fc_destroy(attr->counter_dev, counter); |
b8aee822 | 1056 | err_create_counter: |
513f8f7f | 1057 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
1a9527bb | 1058 | mlx5e_detach_mod_hdr(priv, flow); |
d7e75a32 | 1059 | err_mod_hdr: |
aa0cbbae OG |
1060 | mlx5_eswitch_del_vlan_action(esw, attr); |
1061 | err_add_vlan: | |
f493f155 | 1062 | for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) |
8c4dc42b EB |
1063 | if (attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP) |
1064 | mlx5e_detach_encap(priv, flow, out_index); | |
3c37745e | 1065 | err_attach_encap: |
bf07aa73 | 1066 | err_max_prio_chain: |
c83954ab | 1067 | return err; |
aa0cbbae | 1068 | } |
d85cdccb | 1069 | |
9272e3df YK |
1070 | static bool mlx5_flow_has_geneve_opt(struct mlx5e_tc_flow *flow) |
1071 | { | |
1072 | struct mlx5_flow_spec *spec = &flow->esw_attr->parse_attr->spec; | |
1073 | void *headers_v = MLX5_ADDR_OF(fte_match_param, | |
1074 | spec->match_value, | |
1075 | misc_parameters_3); | |
1076 | u32 geneve_tlv_opt_0_data = MLX5_GET(fte_match_set_misc3, | |
1077 | headers_v, | |
1078 | geneve_tlv_option_0_data); | |
1079 | ||
1080 | return !!geneve_tlv_opt_0_data; | |
1081 | } | |
1082 | ||
d85cdccb OG |
1083 | static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, |
1084 | struct mlx5e_tc_flow *flow) | |
1085 | { | |
1086 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
d7e75a32 | 1087 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
5dbe906f | 1088 | struct mlx5_esw_flow_attr slow_attr; |
f493f155 | 1089 | int out_index; |
d85cdccb | 1090 | |
ef06c9ee | 1091 | if (flow->flags & MLX5E_TC_FLOW_NOT_READY) { |
b4a23329 | 1092 | remove_unready_flow(flow); |
ef06c9ee RD |
1093 | kvfree(attr->parse_attr); |
1094 | return; | |
1095 | } | |
1096 | ||
5dbe906f PB |
1097 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { |
1098 | if (flow->flags & MLX5E_TC_FLOW_SLOW) | |
1099 | mlx5e_tc_unoffload_from_slow_path(esw, flow, &slow_attr); | |
1100 | else | |
1101 | mlx5e_tc_unoffload_fdb_rules(esw, flow, attr); | |
1102 | } | |
d85cdccb | 1103 | |
9272e3df YK |
1104 | if (mlx5_flow_has_geneve_opt(flow)) |
1105 | mlx5_geneve_tlv_option_del(priv->mdev->geneve); | |
1106 | ||
513f8f7f | 1107 | mlx5_eswitch_del_vlan_action(esw, attr); |
d85cdccb | 1108 | |
f493f155 | 1109 | for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) |
8c4dc42b EB |
1110 | if (attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP) |
1111 | mlx5e_detach_encap(priv, flow, out_index); | |
f493f155 | 1112 | kvfree(attr->parse_attr); |
d7e75a32 | 1113 | |
513f8f7f | 1114 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
1a9527bb | 1115 | mlx5e_detach_mod_hdr(priv, flow); |
b8aee822 MB |
1116 | |
1117 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) | |
f9392795 | 1118 | mlx5_fc_destroy(attr->counter_dev, attr->counter); |
d85cdccb OG |
1119 | } |
1120 | ||
232c0013 HHZ |
1121 | void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv, |
1122 | struct mlx5e_encap_entry *e) | |
1123 | { | |
3c37745e | 1124 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
5dbe906f | 1125 | struct mlx5_esw_flow_attr slow_attr, *esw_attr; |
6d2a3ed0 OG |
1126 | struct mlx5_flow_handle *rule; |
1127 | struct mlx5_flow_spec *spec; | |
79baaec7 | 1128 | struct encap_flow_item *efi; |
232c0013 HHZ |
1129 | struct mlx5e_tc_flow *flow; |
1130 | int err; | |
1131 | ||
54c177ca OS |
1132 | err = mlx5_packet_reformat_alloc(priv->mdev, |
1133 | e->reformat_type, | |
60786f09 | 1134 | e->encap_size, e->encap_header, |
31ca3648 | 1135 | MLX5_FLOW_NAMESPACE_FDB, |
60786f09 | 1136 | &e->encap_id); |
232c0013 HHZ |
1137 | if (err) { |
1138 | mlx5_core_warn(priv->mdev, "Failed to offload cached encapsulation header, %d\n", | |
1139 | err); | |
1140 | return; | |
1141 | } | |
1142 | e->flags |= MLX5_ENCAP_ENTRY_VALID; | |
f6dfb4c3 | 1143 | mlx5e_rep_queue_neigh_stats_work(priv); |
232c0013 | 1144 | |
79baaec7 | 1145 | list_for_each_entry(efi, &e->flows, list) { |
8c4dc42b EB |
1146 | bool all_flow_encaps_valid = true; |
1147 | int i; | |
1148 | ||
79baaec7 | 1149 | flow = container_of(efi, struct mlx5e_tc_flow, encaps[efi->index]); |
3c37745e | 1150 | esw_attr = flow->esw_attr; |
6d2a3ed0 OG |
1151 | spec = &esw_attr->parse_attr->spec; |
1152 | ||
8c4dc42b EB |
1153 | esw_attr->dests[efi->index].encap_id = e->encap_id; |
1154 | esw_attr->dests[efi->index].flags |= MLX5_ESW_DEST_ENCAP_VALID; | |
1155 | /* Flow can be associated with multiple encap entries. | |
1156 | * Before offloading the flow verify that all of them have | |
1157 | * a valid neighbour. | |
1158 | */ | |
1159 | for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) { | |
1160 | if (!(esw_attr->dests[i].flags & MLX5_ESW_DEST_ENCAP)) | |
1161 | continue; | |
1162 | if (!(esw_attr->dests[i].flags & MLX5_ESW_DEST_ENCAP_VALID)) { | |
1163 | all_flow_encaps_valid = false; | |
1164 | break; | |
1165 | } | |
1166 | } | |
1167 | /* Do not offload flows with unresolved neighbors */ | |
1168 | if (!all_flow_encaps_valid) | |
1169 | continue; | |
5dbe906f | 1170 | /* update from slow path rule to encap rule */ |
6d2a3ed0 OG |
1171 | rule = mlx5e_tc_offload_fdb_rules(esw, flow, spec, esw_attr); |
1172 | if (IS_ERR(rule)) { | |
1173 | err = PTR_ERR(rule); | |
232c0013 HHZ |
1174 | mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n", |
1175 | err); | |
1176 | continue; | |
1177 | } | |
5dbe906f PB |
1178 | |
1179 | mlx5e_tc_unoffload_from_slow_path(esw, flow, &slow_attr); | |
1180 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; /* was unset when slow path rule removed */ | |
6d2a3ed0 | 1181 | flow->rule[0] = rule; |
232c0013 HHZ |
1182 | } |
1183 | } | |
1184 | ||
1185 | void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv, | |
1186 | struct mlx5e_encap_entry *e) | |
1187 | { | |
3c37745e | 1188 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
5dbe906f PB |
1189 | struct mlx5_esw_flow_attr slow_attr; |
1190 | struct mlx5_flow_handle *rule; | |
1191 | struct mlx5_flow_spec *spec; | |
79baaec7 | 1192 | struct encap_flow_item *efi; |
232c0013 | 1193 | struct mlx5e_tc_flow *flow; |
5dbe906f | 1194 | int err; |
232c0013 | 1195 | |
79baaec7 EB |
1196 | list_for_each_entry(efi, &e->flows, list) { |
1197 | flow = container_of(efi, struct mlx5e_tc_flow, encaps[efi->index]); | |
5dbe906f PB |
1198 | spec = &flow->esw_attr->parse_attr->spec; |
1199 | ||
1200 | /* update from encap rule to slow path rule */ | |
1201 | rule = mlx5e_tc_offload_to_slow_path(esw, flow, spec, &slow_attr); | |
8c4dc42b EB |
1202 | /* mark the flow's encap dest as non-valid */ |
1203 | flow->esw_attr->dests[efi->index].flags &= ~MLX5_ESW_DEST_ENCAP_VALID; | |
5dbe906f PB |
1204 | |
1205 | if (IS_ERR(rule)) { | |
1206 | err = PTR_ERR(rule); | |
1207 | mlx5_core_warn(priv->mdev, "Failed to update slow path (encap) flow, %d\n", | |
1208 | err); | |
1209 | continue; | |
1210 | } | |
1211 | ||
1212 | mlx5e_tc_unoffload_fdb_rules(esw, flow, flow->esw_attr); | |
1213 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; /* was unset when fast path rule removed */ | |
1214 | flow->rule[0] = rule; | |
232c0013 HHZ |
1215 | } |
1216 | ||
61c806da OG |
1217 | /* we know that the encap is valid */ |
1218 | e->flags &= ~MLX5_ENCAP_ENTRY_VALID; | |
1219 | mlx5_packet_reformat_dealloc(priv->mdev, e->encap_id); | |
232c0013 HHZ |
1220 | } |
1221 | ||
b8aee822 MB |
1222 | static struct mlx5_fc *mlx5e_tc_get_counter(struct mlx5e_tc_flow *flow) |
1223 | { | |
1224 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
1225 | return flow->esw_attr->counter; | |
1226 | else | |
1227 | return flow->nic_attr->counter; | |
1228 | } | |
1229 | ||
f6dfb4c3 HHZ |
1230 | void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe) |
1231 | { | |
1232 | struct mlx5e_neigh *m_neigh = &nhe->m_neigh; | |
f6dfb4c3 HHZ |
1233 | struct mlx5e_tc_flow *flow; |
1234 | struct mlx5e_encap_entry *e; | |
1235 | struct mlx5_fc *counter; | |
1236 | struct neigh_table *tbl; | |
1237 | bool neigh_used = false; | |
1238 | struct neighbour *n; | |
90bb7692 | 1239 | u64 lastuse; |
f6dfb4c3 HHZ |
1240 | |
1241 | if (m_neigh->family == AF_INET) | |
1242 | tbl = &arp_tbl; | |
1243 | #if IS_ENABLED(CONFIG_IPV6) | |
1244 | else if (m_neigh->family == AF_INET6) | |
423c9db2 | 1245 | tbl = &nd_tbl; |
f6dfb4c3 HHZ |
1246 | #endif |
1247 | else | |
1248 | return; | |
1249 | ||
1250 | list_for_each_entry(e, &nhe->encap_list, encap_list) { | |
79baaec7 | 1251 | struct encap_flow_item *efi; |
f6dfb4c3 HHZ |
1252 | if (!(e->flags & MLX5_ENCAP_ENTRY_VALID)) |
1253 | continue; | |
79baaec7 EB |
1254 | list_for_each_entry(efi, &e->flows, list) { |
1255 | flow = container_of(efi, struct mlx5e_tc_flow, | |
1256 | encaps[efi->index]); | |
f6dfb4c3 | 1257 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { |
b8aee822 | 1258 | counter = mlx5e_tc_get_counter(flow); |
90bb7692 | 1259 | lastuse = mlx5_fc_query_lastuse(counter); |
f6dfb4c3 HHZ |
1260 | if (time_after((unsigned long)lastuse, nhe->reported_lastuse)) { |
1261 | neigh_used = true; | |
1262 | break; | |
1263 | } | |
1264 | } | |
1265 | } | |
e36d4810 RD |
1266 | if (neigh_used) |
1267 | break; | |
f6dfb4c3 HHZ |
1268 | } |
1269 | ||
1270 | if (neigh_used) { | |
1271 | nhe->reported_lastuse = jiffies; | |
1272 | ||
1273 | /* find the relevant neigh according to the cached device and | |
1274 | * dst ip pair | |
1275 | */ | |
1276 | n = neigh_lookup(tbl, &m_neigh->dst_ip, m_neigh->dev); | |
c7f7ba8d | 1277 | if (!n) |
f6dfb4c3 | 1278 | return; |
f6dfb4c3 HHZ |
1279 | |
1280 | neigh_event_send(n, NULL); | |
1281 | neigh_release(n); | |
1282 | } | |
1283 | } | |
1284 | ||
d85cdccb | 1285 | static void mlx5e_detach_encap(struct mlx5e_priv *priv, |
8c4dc42b | 1286 | struct mlx5e_tc_flow *flow, int out_index) |
d85cdccb | 1287 | { |
8c4dc42b | 1288 | struct list_head *next = flow->encaps[out_index].list.next; |
5067b602 | 1289 | |
8c4dc42b | 1290 | list_del(&flow->encaps[out_index].list); |
5067b602 | 1291 | if (list_empty(next)) { |
c1ae1152 | 1292 | struct mlx5e_encap_entry *e; |
5067b602 | 1293 | |
c1ae1152 | 1294 | e = list_entry(next, struct mlx5e_encap_entry, flows); |
232c0013 HHZ |
1295 | mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e); |
1296 | ||
1297 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) | |
60786f09 | 1298 | mlx5_packet_reformat_dealloc(priv->mdev, e->encap_id); |
232c0013 | 1299 | |
cdc5a7f3 | 1300 | hash_del_rcu(&e->encap_hlist); |
232c0013 | 1301 | kfree(e->encap_header); |
5067b602 RD |
1302 | kfree(e); |
1303 | } | |
1304 | } | |
1305 | ||
04de7dda RD |
1306 | static void __mlx5e_tc_del_fdb_peer_flow(struct mlx5e_tc_flow *flow) |
1307 | { | |
1308 | struct mlx5_eswitch *esw = flow->priv->mdev->priv.eswitch; | |
1309 | ||
1310 | if (!(flow->flags & MLX5E_TC_FLOW_ESWITCH) || | |
1311 | !(flow->flags & MLX5E_TC_FLOW_DUP)) | |
1312 | return; | |
1313 | ||
1314 | mutex_lock(&esw->offloads.peer_mutex); | |
1315 | list_del(&flow->peer); | |
1316 | mutex_unlock(&esw->offloads.peer_mutex); | |
1317 | ||
1318 | flow->flags &= ~MLX5E_TC_FLOW_DUP; | |
1319 | ||
1320 | mlx5e_tc_del_fdb_flow(flow->peer_flow->priv, flow->peer_flow); | |
1321 | kvfree(flow->peer_flow); | |
1322 | flow->peer_flow = NULL; | |
1323 | } | |
1324 | ||
1325 | static void mlx5e_tc_del_fdb_peer_flow(struct mlx5e_tc_flow *flow) | |
1326 | { | |
1327 | struct mlx5_core_dev *dev = flow->priv->mdev; | |
1328 | struct mlx5_devcom *devcom = dev->priv.devcom; | |
1329 | struct mlx5_eswitch *peer_esw; | |
1330 | ||
1331 | peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); | |
1332 | if (!peer_esw) | |
1333 | return; | |
1334 | ||
1335 | __mlx5e_tc_del_fdb_peer_flow(flow); | |
1336 | mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); | |
1337 | } | |
1338 | ||
e8f887ac | 1339 | static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, |
961e8979 | 1340 | struct mlx5e_tc_flow *flow) |
e8f887ac | 1341 | { |
04de7dda RD |
1342 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
1343 | mlx5e_tc_del_fdb_peer_flow(flow); | |
d85cdccb | 1344 | mlx5e_tc_del_fdb_flow(priv, flow); |
04de7dda | 1345 | } else { |
d85cdccb | 1346 | mlx5e_tc_del_nic_flow(priv, flow); |
04de7dda | 1347 | } |
e8f887ac AV |
1348 | } |
1349 | ||
bbd00f7e HHZ |
1350 | |
1351 | static int parse_tunnel_attr(struct mlx5e_priv *priv, | |
1352 | struct mlx5_flow_spec *spec, | |
f9e30088 | 1353 | struct flow_cls_offload *f, |
6363651d | 1354 | struct net_device *filter_dev, u8 *match_level) |
bbd00f7e | 1355 | { |
e98bedf5 | 1356 | struct netlink_ext_ack *extack = f->common.extack; |
bbd00f7e HHZ |
1357 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
1358 | outer_headers); | |
1359 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1360 | outer_headers); | |
f9e30088 | 1361 | struct flow_rule *rule = flow_cls_offload_flow_rule(f); |
8f256622 | 1362 | int err; |
2e72eb43 | 1363 | |
101f4de9 | 1364 | err = mlx5e_tc_tun_parse(filter_dev, priv, spec, f, |
6363651d | 1365 | headers_c, headers_v, match_level); |
54c177ca OS |
1366 | if (err) { |
1367 | NL_SET_ERR_MSG_MOD(extack, | |
1368 | "failed to parse tunnel attributes"); | |
101f4de9 | 1369 | return err; |
bbd00f7e HHZ |
1370 | } |
1371 | ||
d1bda7ee | 1372 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) { |
8f256622 PNA |
1373 | struct flow_match_ipv4_addrs match; |
1374 | ||
1375 | flow_rule_match_enc_ipv4_addrs(rule, &match); | |
bbd00f7e HHZ |
1376 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
1377 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
8f256622 | 1378 | ntohl(match.mask->src)); |
bbd00f7e HHZ |
1379 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
1380 | src_ipv4_src_ipv6.ipv4_layout.ipv4, | |
8f256622 | 1381 | ntohl(match.key->src)); |
bbd00f7e HHZ |
1382 | |
1383 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1384 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
8f256622 | 1385 | ntohl(match.mask->dst)); |
bbd00f7e HHZ |
1386 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
1387 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4, | |
8f256622 | 1388 | ntohl(match.key->dst)); |
bbd00f7e | 1389 | |
2e72eb43 OG |
1390 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); |
1391 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IP); | |
d1bda7ee | 1392 | } else if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS)) { |
8f256622 | 1393 | struct flow_match_ipv6_addrs match; |
19f44401 | 1394 | |
8f256622 | 1395 | flow_rule_match_enc_ipv6_addrs(rule, &match); |
19f44401 OG |
1396 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
1397 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1398 | &match.mask->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); |
19f44401 OG |
1399 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1400 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1401 | &match.key->src, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); |
19f44401 OG |
1402 | |
1403 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1404 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1405 | &match.mask->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); |
19f44401 OG |
1406 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1407 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1408 | &match.key->dst, MLX5_FLD_SZ_BYTES(ipv6_layout, ipv6)); |
19f44401 OG |
1409 | |
1410 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, ethertype); | |
1411 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, ETH_P_IPV6); | |
2e72eb43 | 1412 | } |
bbd00f7e | 1413 | |
8f256622 PNA |
1414 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IP)) { |
1415 | struct flow_match_ip match; | |
bcef735c | 1416 | |
8f256622 PNA |
1417 | flow_rule_match_enc_ip(rule, &match); |
1418 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, | |
1419 | match.mask->tos & 0x3); | |
1420 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, | |
1421 | match.key->tos & 0x3); | |
bcef735c | 1422 | |
8f256622 PNA |
1423 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, |
1424 | match.mask->tos >> 2); | |
1425 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, | |
1426 | match.key->tos >> 2); | |
bcef735c | 1427 | |
8f256622 PNA |
1428 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, |
1429 | match.mask->ttl); | |
1430 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, | |
1431 | match.key->ttl); | |
e98bedf5 | 1432 | |
8f256622 | 1433 | if (match.mask->ttl && |
e98bedf5 EB |
1434 | !MLX5_CAP_ESW_FLOWTABLE_FDB |
1435 | (priv->mdev, | |
1436 | ft_field_support.outer_ipv4_ttl)) { | |
1437 | NL_SET_ERR_MSG_MOD(extack, | |
1438 | "Matching on TTL is not supported"); | |
1439 | return -EOPNOTSUPP; | |
1440 | } | |
1441 | ||
bcef735c OG |
1442 | } |
1443 | ||
bbd00f7e HHZ |
1444 | /* Enforce DMAC when offloading incoming tunneled flows. |
1445 | * Flow counters require a match on the DMAC. | |
1446 | */ | |
1447 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_47_16); | |
1448 | MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, dmac_15_0); | |
1449 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, | |
1450 | dmac_47_16), priv->netdev->dev_addr); | |
1451 | ||
1452 | /* let software handle IP fragments */ | |
1453 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); | |
1454 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, 0); | |
1455 | ||
1456 | return 0; | |
1457 | } | |
1458 | ||
8377629e EB |
1459 | static void *get_match_headers_criteria(u32 flags, |
1460 | struct mlx5_flow_spec *spec) | |
1461 | { | |
1462 | return (flags & MLX5_FLOW_CONTEXT_ACTION_DECAP) ? | |
1463 | MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
1464 | inner_headers) : | |
1465 | MLX5_ADDR_OF(fte_match_param, spec->match_criteria, | |
1466 | outer_headers); | |
1467 | } | |
1468 | ||
1469 | static void *get_match_headers_value(u32 flags, | |
1470 | struct mlx5_flow_spec *spec) | |
1471 | { | |
1472 | return (flags & MLX5_FLOW_CONTEXT_ACTION_DECAP) ? | |
1473 | MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1474 | inner_headers) : | |
1475 | MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1476 | outer_headers); | |
1477 | } | |
1478 | ||
de0af0bf RD |
1479 | static int __parse_cls_flower(struct mlx5e_priv *priv, |
1480 | struct mlx5_flow_spec *spec, | |
f9e30088 | 1481 | struct flow_cls_offload *f, |
54c177ca | 1482 | struct net_device *filter_dev, |
6363651d | 1483 | u8 *match_level, u8 *tunnel_match_level) |
e3a2b7ed | 1484 | { |
e98bedf5 | 1485 | struct netlink_ext_ack *extack = f->common.extack; |
c5bb1730 MG |
1486 | void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
1487 | outer_headers); | |
1488 | void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1489 | outer_headers); | |
699e96dd JL |
1490 | void *misc_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, |
1491 | misc_parameters); | |
1492 | void *misc_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, | |
1493 | misc_parameters); | |
f9e30088 | 1494 | struct flow_rule *rule = flow_cls_offload_flow_rule(f); |
8f256622 | 1495 | struct flow_dissector *dissector = rule->match.dissector; |
e3a2b7ed AV |
1496 | u16 addr_type = 0; |
1497 | u8 ip_proto = 0; | |
1498 | ||
d708f902 | 1499 | *match_level = MLX5_MATCH_NONE; |
de0af0bf | 1500 | |
8f256622 | 1501 | if (dissector->used_keys & |
3d144578 VB |
1502 | ~(BIT(FLOW_DISSECTOR_KEY_META) | |
1503 | BIT(FLOW_DISSECTOR_KEY_CONTROL) | | |
e3a2b7ed AV |
1504 | BIT(FLOW_DISSECTOR_KEY_BASIC) | |
1505 | BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | | |
095b6cfd | 1506 | BIT(FLOW_DISSECTOR_KEY_VLAN) | |
699e96dd | 1507 | BIT(FLOW_DISSECTOR_KEY_CVLAN) | |
e3a2b7ed AV |
1508 | BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | |
1509 | BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | | |
bbd00f7e HHZ |
1510 | BIT(FLOW_DISSECTOR_KEY_PORTS) | |
1511 | BIT(FLOW_DISSECTOR_KEY_ENC_KEYID) | | |
1512 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) | | |
1513 | BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) | | |
1514 | BIT(FLOW_DISSECTOR_KEY_ENC_PORTS) | | |
e77834ec | 1515 | BIT(FLOW_DISSECTOR_KEY_ENC_CONTROL) | |
fd7da28b | 1516 | BIT(FLOW_DISSECTOR_KEY_TCP) | |
bcef735c | 1517 | BIT(FLOW_DISSECTOR_KEY_IP) | |
9272e3df YK |
1518 | BIT(FLOW_DISSECTOR_KEY_ENC_IP) | |
1519 | BIT(FLOW_DISSECTOR_KEY_ENC_OPTS))) { | |
e98bedf5 | 1520 | NL_SET_ERR_MSG_MOD(extack, "Unsupported key"); |
e3a2b7ed | 1521 | netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n", |
8f256622 | 1522 | dissector->used_keys); |
e3a2b7ed AV |
1523 | return -EOPNOTSUPP; |
1524 | } | |
1525 | ||
075973c7 | 1526 | if (mlx5e_get_tc_tun(filter_dev)) { |
d1bda7ee | 1527 | if (parse_tunnel_attr(priv, spec, f, filter_dev, tunnel_match_level)) |
bbd00f7e | 1528 | return -EOPNOTSUPP; |
bbd00f7e HHZ |
1529 | |
1530 | /* In decap flow, header pointers should point to the inner | |
1531 | * headers, outer header were already set by parse_tunnel_attr | |
1532 | */ | |
8377629e EB |
1533 | headers_c = get_match_headers_criteria(MLX5_FLOW_CONTEXT_ACTION_DECAP, |
1534 | spec); | |
1535 | headers_v = get_match_headers_value(MLX5_FLOW_CONTEXT_ACTION_DECAP, | |
1536 | spec); | |
bbd00f7e HHZ |
1537 | } |
1538 | ||
8f256622 PNA |
1539 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) { |
1540 | struct flow_match_basic match; | |
1541 | ||
1542 | flow_rule_match_basic(rule, &match); | |
d3a80bb5 | 1543 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype, |
8f256622 | 1544 | ntohs(match.mask->n_proto)); |
d3a80bb5 | 1545 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype, |
8f256622 | 1546 | ntohs(match.key->n_proto)); |
e3a2b7ed | 1547 | |
8f256622 | 1548 | if (match.mask->n_proto) |
d708f902 | 1549 | *match_level = MLX5_MATCH_L2; |
e3a2b7ed | 1550 | } |
35a605db EB |
1551 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN) || |
1552 | is_vlan_dev(filter_dev)) { | |
1553 | struct flow_dissector_key_vlan filter_dev_mask; | |
1554 | struct flow_dissector_key_vlan filter_dev_key; | |
8f256622 PNA |
1555 | struct flow_match_vlan match; |
1556 | ||
35a605db EB |
1557 | if (is_vlan_dev(filter_dev)) { |
1558 | match.key = &filter_dev_key; | |
1559 | match.key->vlan_id = vlan_dev_vlan_id(filter_dev); | |
1560 | match.key->vlan_tpid = vlan_dev_vlan_proto(filter_dev); | |
1561 | match.key->vlan_priority = 0; | |
1562 | match.mask = &filter_dev_mask; | |
1563 | memset(match.mask, 0xff, sizeof(*match.mask)); | |
1564 | match.mask->vlan_priority = 0; | |
1565 | } else { | |
1566 | flow_rule_match_vlan(rule, &match); | |
1567 | } | |
8f256622 PNA |
1568 | if (match.mask->vlan_id || |
1569 | match.mask->vlan_priority || | |
1570 | match.mask->vlan_tpid) { | |
1571 | if (match.key->vlan_tpid == htons(ETH_P_8021AD)) { | |
699e96dd JL |
1572 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, |
1573 | svlan_tag, 1); | |
1574 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1575 | svlan_tag, 1); | |
1576 | } else { | |
1577 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
1578 | cvlan_tag, 1); | |
1579 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, | |
1580 | cvlan_tag, 1); | |
1581 | } | |
095b6cfd | 1582 | |
8f256622 PNA |
1583 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, |
1584 | match.mask->vlan_id); | |
1585 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, | |
1586 | match.key->vlan_id); | |
358d79a4 | 1587 | |
8f256622 PNA |
1588 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_prio, |
1589 | match.mask->vlan_priority); | |
1590 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_prio, | |
1591 | match.key->vlan_priority); | |
54782900 | 1592 | |
d708f902 | 1593 | *match_level = MLX5_MATCH_L2; |
54782900 | 1594 | } |
d3a80bb5 | 1595 | } else if (*match_level != MLX5_MATCH_NONE) { |
cee26487 JL |
1596 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, svlan_tag, 1); |
1597 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1); | |
d3a80bb5 | 1598 | *match_level = MLX5_MATCH_L2; |
54782900 OG |
1599 | } |
1600 | ||
8f256622 PNA |
1601 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) { |
1602 | struct flow_match_vlan match; | |
1603 | ||
12d5cbf8 | 1604 | flow_rule_match_cvlan(rule, &match); |
8f256622 PNA |
1605 | if (match.mask->vlan_id || |
1606 | match.mask->vlan_priority || | |
1607 | match.mask->vlan_tpid) { | |
1608 | if (match.key->vlan_tpid == htons(ETH_P_8021AD)) { | |
699e96dd JL |
1609 | MLX5_SET(fte_match_set_misc, misc_c, |
1610 | outer_second_svlan_tag, 1); | |
1611 | MLX5_SET(fte_match_set_misc, misc_v, | |
1612 | outer_second_svlan_tag, 1); | |
1613 | } else { | |
1614 | MLX5_SET(fte_match_set_misc, misc_c, | |
1615 | outer_second_cvlan_tag, 1); | |
1616 | MLX5_SET(fte_match_set_misc, misc_v, | |
1617 | outer_second_cvlan_tag, 1); | |
1618 | } | |
1619 | ||
1620 | MLX5_SET(fte_match_set_misc, misc_c, outer_second_vid, | |
8f256622 | 1621 | match.mask->vlan_id); |
699e96dd | 1622 | MLX5_SET(fte_match_set_misc, misc_v, outer_second_vid, |
8f256622 | 1623 | match.key->vlan_id); |
699e96dd | 1624 | MLX5_SET(fte_match_set_misc, misc_c, outer_second_prio, |
8f256622 | 1625 | match.mask->vlan_priority); |
699e96dd | 1626 | MLX5_SET(fte_match_set_misc, misc_v, outer_second_prio, |
8f256622 | 1627 | match.key->vlan_priority); |
699e96dd JL |
1628 | |
1629 | *match_level = MLX5_MATCH_L2; | |
1630 | } | |
1631 | } | |
1632 | ||
8f256622 PNA |
1633 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { |
1634 | struct flow_match_eth_addrs match; | |
54782900 | 1635 | |
8f256622 | 1636 | flow_rule_match_eth_addrs(rule, &match); |
d3a80bb5 OG |
1637 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
1638 | dmac_47_16), | |
8f256622 | 1639 | match.mask->dst); |
d3a80bb5 OG |
1640 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1641 | dmac_47_16), | |
8f256622 | 1642 | match.key->dst); |
d3a80bb5 OG |
1643 | |
1644 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1645 | smac_47_16), | |
8f256622 | 1646 | match.mask->src); |
d3a80bb5 OG |
1647 | ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1648 | smac_47_16), | |
8f256622 | 1649 | match.key->src); |
d3a80bb5 | 1650 | |
8f256622 PNA |
1651 | if (!is_zero_ether_addr(match.mask->src) || |
1652 | !is_zero_ether_addr(match.mask->dst)) | |
d708f902 | 1653 | *match_level = MLX5_MATCH_L2; |
54782900 OG |
1654 | } |
1655 | ||
8f256622 PNA |
1656 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) { |
1657 | struct flow_match_control match; | |
54782900 | 1658 | |
8f256622 PNA |
1659 | flow_rule_match_control(rule, &match); |
1660 | addr_type = match.key->addr_type; | |
54782900 OG |
1661 | |
1662 | /* the HW doesn't support frag first/later */ | |
8f256622 | 1663 | if (match.mask->flags & FLOW_DIS_FIRST_FRAG) |
54782900 OG |
1664 | return -EOPNOTSUPP; |
1665 | ||
8f256622 | 1666 | if (match.mask->flags & FLOW_DIS_IS_FRAGMENT) { |
54782900 OG |
1667 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, frag, 1); |
1668 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, frag, | |
8f256622 | 1669 | match.key->flags & FLOW_DIS_IS_FRAGMENT); |
54782900 OG |
1670 | |
1671 | /* the HW doesn't need L3 inline to match on frag=no */ | |
8f256622 | 1672 | if (!(match.key->flags & FLOW_DIS_IS_FRAGMENT)) |
83621b7d | 1673 | *match_level = MLX5_MATCH_L2; |
54782900 OG |
1674 | /* *** L2 attributes parsing up to here *** */ |
1675 | else | |
83621b7d | 1676 | *match_level = MLX5_MATCH_L3; |
095b6cfd OG |
1677 | } |
1678 | } | |
1679 | ||
8f256622 PNA |
1680 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) { |
1681 | struct flow_match_basic match; | |
1682 | ||
1683 | flow_rule_match_basic(rule, &match); | |
1684 | ip_proto = match.key->ip_proto; | |
54782900 OG |
1685 | |
1686 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol, | |
8f256622 | 1687 | match.mask->ip_proto); |
54782900 | 1688 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, |
8f256622 | 1689 | match.key->ip_proto); |
54782900 | 1690 | |
8f256622 | 1691 | if (match.mask->ip_proto) |
d708f902 | 1692 | *match_level = MLX5_MATCH_L3; |
54782900 OG |
1693 | } |
1694 | ||
e3a2b7ed | 1695 | if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) { |
8f256622 | 1696 | struct flow_match_ipv4_addrs match; |
e3a2b7ed | 1697 | |
8f256622 | 1698 | flow_rule_match_ipv4_addrs(rule, &match); |
e3a2b7ed AV |
1699 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
1700 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
8f256622 | 1701 | &match.mask->src, sizeof(match.mask->src)); |
e3a2b7ed AV |
1702 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1703 | src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
8f256622 | 1704 | &match.key->src, sizeof(match.key->src)); |
e3a2b7ed AV |
1705 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
1706 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
8f256622 | 1707 | &match.mask->dst, sizeof(match.mask->dst)); |
e3a2b7ed AV |
1708 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1709 | dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
8f256622 | 1710 | &match.key->dst, sizeof(match.key->dst)); |
de0af0bf | 1711 | |
8f256622 | 1712 | if (match.mask->src || match.mask->dst) |
d708f902 | 1713 | *match_level = MLX5_MATCH_L3; |
e3a2b7ed AV |
1714 | } |
1715 | ||
1716 | if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { | |
8f256622 | 1717 | struct flow_match_ipv6_addrs match; |
e3a2b7ed | 1718 | |
8f256622 | 1719 | flow_rule_match_ipv6_addrs(rule, &match); |
e3a2b7ed AV |
1720 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, |
1721 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1722 | &match.mask->src, sizeof(match.mask->src)); |
e3a2b7ed AV |
1723 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1724 | src_ipv4_src_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1725 | &match.key->src, sizeof(match.key->src)); |
e3a2b7ed AV |
1726 | |
1727 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c, | |
1728 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1729 | &match.mask->dst, sizeof(match.mask->dst)); |
e3a2b7ed AV |
1730 | memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, |
1731 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6), | |
8f256622 | 1732 | &match.key->dst, sizeof(match.key->dst)); |
de0af0bf | 1733 | |
8f256622 PNA |
1734 | if (ipv6_addr_type(&match.mask->src) != IPV6_ADDR_ANY || |
1735 | ipv6_addr_type(&match.mask->dst) != IPV6_ADDR_ANY) | |
d708f902 | 1736 | *match_level = MLX5_MATCH_L3; |
e3a2b7ed AV |
1737 | } |
1738 | ||
8f256622 PNA |
1739 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) { |
1740 | struct flow_match_ip match; | |
1f97a526 | 1741 | |
8f256622 PNA |
1742 | flow_rule_match_ip(rule, &match); |
1743 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_ecn, | |
1744 | match.mask->tos & 0x3); | |
1745 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_ecn, | |
1746 | match.key->tos & 0x3); | |
1f97a526 | 1747 | |
8f256622 PNA |
1748 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_dscp, |
1749 | match.mask->tos >> 2); | |
1750 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_dscp, | |
1751 | match.key->tos >> 2); | |
1f97a526 | 1752 | |
8f256622 PNA |
1753 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, |
1754 | match.mask->ttl); | |
1755 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, | |
1756 | match.key->ttl); | |
1f97a526 | 1757 | |
8f256622 | 1758 | if (match.mask->ttl && |
a8ade55f | 1759 | !MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, |
e98bedf5 EB |
1760 | ft_field_support.outer_ipv4_ttl)) { |
1761 | NL_SET_ERR_MSG_MOD(extack, | |
1762 | "Matching on TTL is not supported"); | |
1f97a526 | 1763 | return -EOPNOTSUPP; |
e98bedf5 | 1764 | } |
a8ade55f | 1765 | |
8f256622 | 1766 | if (match.mask->tos || match.mask->ttl) |
d708f902 | 1767 | *match_level = MLX5_MATCH_L3; |
1f97a526 OG |
1768 | } |
1769 | ||
54782900 OG |
1770 | /* *** L3 attributes parsing up to here *** */ |
1771 | ||
8f256622 PNA |
1772 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) { |
1773 | struct flow_match_ports match; | |
1774 | ||
1775 | flow_rule_match_ports(rule, &match); | |
e3a2b7ed AV |
1776 | switch (ip_proto) { |
1777 | case IPPROTO_TCP: | |
1778 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
8f256622 | 1779 | tcp_sport, ntohs(match.mask->src)); |
e3a2b7ed | 1780 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
8f256622 | 1781 | tcp_sport, ntohs(match.key->src)); |
e3a2b7ed AV |
1782 | |
1783 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
8f256622 | 1784 | tcp_dport, ntohs(match.mask->dst)); |
e3a2b7ed | 1785 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
8f256622 | 1786 | tcp_dport, ntohs(match.key->dst)); |
e3a2b7ed AV |
1787 | break; |
1788 | ||
1789 | case IPPROTO_UDP: | |
1790 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
8f256622 | 1791 | udp_sport, ntohs(match.mask->src)); |
e3a2b7ed | 1792 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
8f256622 | 1793 | udp_sport, ntohs(match.key->src)); |
e3a2b7ed AV |
1794 | |
1795 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, | |
8f256622 | 1796 | udp_dport, ntohs(match.mask->dst)); |
e3a2b7ed | 1797 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, |
8f256622 | 1798 | udp_dport, ntohs(match.key->dst)); |
e3a2b7ed AV |
1799 | break; |
1800 | default: | |
e98bedf5 EB |
1801 | NL_SET_ERR_MSG_MOD(extack, |
1802 | "Only UDP and TCP transports are supported for L4 matching"); | |
e3a2b7ed AV |
1803 | netdev_err(priv->netdev, |
1804 | "Only UDP and TCP transport are supported\n"); | |
1805 | return -EINVAL; | |
1806 | } | |
de0af0bf | 1807 | |
8f256622 | 1808 | if (match.mask->src || match.mask->dst) |
d708f902 | 1809 | *match_level = MLX5_MATCH_L4; |
e3a2b7ed AV |
1810 | } |
1811 | ||
8f256622 PNA |
1812 | if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_TCP)) { |
1813 | struct flow_match_tcp match; | |
e77834ec | 1814 | |
8f256622 | 1815 | flow_rule_match_tcp(rule, &match); |
e77834ec | 1816 | MLX5_SET(fte_match_set_lyr_2_4, headers_c, tcp_flags, |
8f256622 | 1817 | ntohs(match.mask->flags)); |
e77834ec | 1818 | MLX5_SET(fte_match_set_lyr_2_4, headers_v, tcp_flags, |
8f256622 | 1819 | ntohs(match.key->flags)); |
e77834ec | 1820 | |
8f256622 | 1821 | if (match.mask->flags) |
d708f902 | 1822 | *match_level = MLX5_MATCH_L4; |
e77834ec OG |
1823 | } |
1824 | ||
e3a2b7ed AV |
1825 | return 0; |
1826 | } | |
1827 | ||
de0af0bf | 1828 | static int parse_cls_flower(struct mlx5e_priv *priv, |
65ba8fb7 | 1829 | struct mlx5e_tc_flow *flow, |
de0af0bf | 1830 | struct mlx5_flow_spec *spec, |
f9e30088 | 1831 | struct flow_cls_offload *f, |
54c177ca | 1832 | struct net_device *filter_dev) |
de0af0bf | 1833 | { |
e98bedf5 | 1834 | struct netlink_ext_ack *extack = f->common.extack; |
de0af0bf RD |
1835 | struct mlx5_core_dev *dev = priv->mdev; |
1836 | struct mlx5_eswitch *esw = dev->priv.eswitch; | |
1d447a39 | 1837 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
6363651d | 1838 | u8 match_level, tunnel_match_level = MLX5_MATCH_NONE; |
1d447a39 | 1839 | struct mlx5_eswitch_rep *rep; |
de0af0bf RD |
1840 | int err; |
1841 | ||
6363651d | 1842 | err = __parse_cls_flower(priv, spec, f, filter_dev, &match_level, &tunnel_match_level); |
de0af0bf | 1843 | |
1d447a39 SM |
1844 | if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH)) { |
1845 | rep = rpriv->rep; | |
b05af6aa | 1846 | if (rep->vport != MLX5_VPORT_UPLINK && |
1d447a39 | 1847 | (esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE && |
d708f902 | 1848 | esw->offloads.inline_mode < match_level)) { |
e98bedf5 EB |
1849 | NL_SET_ERR_MSG_MOD(extack, |
1850 | "Flow is not offloaded due to min inline setting"); | |
de0af0bf RD |
1851 | netdev_warn(priv->netdev, |
1852 | "Flow is not offloaded due to min inline setting, required %d actual %d\n", | |
d708f902 | 1853 | match_level, esw->offloads.inline_mode); |
de0af0bf RD |
1854 | return -EOPNOTSUPP; |
1855 | } | |
1856 | } | |
1857 | ||
6363651d | 1858 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { |
38aa51c1 | 1859 | flow->esw_attr->match_level = match_level; |
6363651d OG |
1860 | flow->esw_attr->tunnel_match_level = tunnel_match_level; |
1861 | } else { | |
38aa51c1 | 1862 | flow->nic_attr->match_level = match_level; |
6363651d | 1863 | } |
38aa51c1 | 1864 | |
de0af0bf RD |
1865 | return err; |
1866 | } | |
1867 | ||
d79b6df6 OG |
1868 | struct pedit_headers { |
1869 | struct ethhdr eth; | |
0eb69bb9 | 1870 | struct vlan_hdr vlan; |
d79b6df6 OG |
1871 | struct iphdr ip4; |
1872 | struct ipv6hdr ip6; | |
1873 | struct tcphdr tcp; | |
1874 | struct udphdr udp; | |
1875 | }; | |
1876 | ||
c500c86b PNA |
1877 | struct pedit_headers_action { |
1878 | struct pedit_headers vals; | |
1879 | struct pedit_headers masks; | |
1880 | u32 pedits; | |
1881 | }; | |
1882 | ||
d79b6df6 | 1883 | static int pedit_header_offsets[] = { |
73867881 PNA |
1884 | [FLOW_ACT_MANGLE_HDR_TYPE_ETH] = offsetof(struct pedit_headers, eth), |
1885 | [FLOW_ACT_MANGLE_HDR_TYPE_IP4] = offsetof(struct pedit_headers, ip4), | |
1886 | [FLOW_ACT_MANGLE_HDR_TYPE_IP6] = offsetof(struct pedit_headers, ip6), | |
1887 | [FLOW_ACT_MANGLE_HDR_TYPE_TCP] = offsetof(struct pedit_headers, tcp), | |
1888 | [FLOW_ACT_MANGLE_HDR_TYPE_UDP] = offsetof(struct pedit_headers, udp), | |
d79b6df6 OG |
1889 | }; |
1890 | ||
1891 | #define pedit_header(_ph, _htype) ((void *)(_ph) + pedit_header_offsets[_htype]) | |
1892 | ||
1893 | static int set_pedit_val(u8 hdr_type, u32 mask, u32 val, u32 offset, | |
c500c86b | 1894 | struct pedit_headers_action *hdrs) |
d79b6df6 OG |
1895 | { |
1896 | u32 *curr_pmask, *curr_pval; | |
1897 | ||
c500c86b PNA |
1898 | curr_pmask = (u32 *)(pedit_header(&hdrs->masks, hdr_type) + offset); |
1899 | curr_pval = (u32 *)(pedit_header(&hdrs->vals, hdr_type) + offset); | |
d79b6df6 OG |
1900 | |
1901 | if (*curr_pmask & mask) /* disallow acting twice on the same location */ | |
1902 | goto out_err; | |
1903 | ||
1904 | *curr_pmask |= mask; | |
1905 | *curr_pval |= (val & mask); | |
1906 | ||
1907 | return 0; | |
1908 | ||
1909 | out_err: | |
1910 | return -EOPNOTSUPP; | |
1911 | } | |
1912 | ||
1913 | struct mlx5_fields { | |
1914 | u8 field; | |
1915 | u8 size; | |
1916 | u32 offset; | |
27c11b6b | 1917 | u32 match_offset; |
d79b6df6 OG |
1918 | }; |
1919 | ||
27c11b6b EB |
1920 | #define OFFLOAD(fw_field, size, field, off, match_field) \ |
1921 | {MLX5_ACTION_IN_FIELD_OUT_ ## fw_field, size, \ | |
1922 | offsetof(struct pedit_headers, field) + (off), \ | |
1923 | MLX5_BYTE_OFF(fte_match_set_lyr_2_4, match_field)} | |
1924 | ||
2ef86872 EB |
1925 | /* masked values are the same and there are no rewrites that do not have a |
1926 | * match. | |
1927 | */ | |
1928 | #define SAME_VAL_MASK(type, valp, maskp, matchvalp, matchmaskp) ({ \ | |
1929 | type matchmaskx = *(type *)(matchmaskp); \ | |
1930 | type matchvalx = *(type *)(matchvalp); \ | |
1931 | type maskx = *(type *)(maskp); \ | |
1932 | type valx = *(type *)(valp); \ | |
1933 | \ | |
1934 | (valx & maskx) == (matchvalx & matchmaskx) && !(maskx & (maskx ^ \ | |
1935 | matchmaskx)); \ | |
1936 | }) | |
1937 | ||
27c11b6b EB |
1938 | static bool cmp_val_mask(void *valp, void *maskp, void *matchvalp, |
1939 | void *matchmaskp, int size) | |
1940 | { | |
1941 | bool same = false; | |
1942 | ||
1943 | switch (size) { | |
1944 | case sizeof(u8): | |
2ef86872 | 1945 | same = SAME_VAL_MASK(u8, valp, maskp, matchvalp, matchmaskp); |
27c11b6b EB |
1946 | break; |
1947 | case sizeof(u16): | |
2ef86872 | 1948 | same = SAME_VAL_MASK(u16, valp, maskp, matchvalp, matchmaskp); |
27c11b6b EB |
1949 | break; |
1950 | case sizeof(u32): | |
2ef86872 | 1951 | same = SAME_VAL_MASK(u32, valp, maskp, matchvalp, matchmaskp); |
27c11b6b EB |
1952 | break; |
1953 | } | |
1954 | ||
1955 | return same; | |
1956 | } | |
a8e4f0c4 | 1957 | |
d79b6df6 | 1958 | static struct mlx5_fields fields[] = { |
27c11b6b EB |
1959 | OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0, dmac_47_16), |
1960 | OFFLOAD(DMAC_15_0, 2, eth.h_dest[4], 0, dmac_15_0), | |
1961 | OFFLOAD(SMAC_47_16, 4, eth.h_source[0], 0, smac_47_16), | |
1962 | OFFLOAD(SMAC_15_0, 2, eth.h_source[4], 0, smac_15_0), | |
1963 | OFFLOAD(ETHERTYPE, 2, eth.h_proto, 0, ethertype), | |
1964 | OFFLOAD(FIRST_VID, 2, vlan.h_vlan_TCI, 0, first_vid), | |
1965 | ||
1966 | OFFLOAD(IP_TTL, 1, ip4.ttl, 0, ttl_hoplimit), | |
1967 | OFFLOAD(SIPV4, 4, ip4.saddr, 0, src_ipv4_src_ipv6.ipv4_layout.ipv4), | |
1968 | OFFLOAD(DIPV4, 4, ip4.daddr, 0, dst_ipv4_dst_ipv6.ipv4_layout.ipv4), | |
1969 | ||
1970 | OFFLOAD(SIPV6_127_96, 4, ip6.saddr.s6_addr32[0], 0, | |
1971 | src_ipv4_src_ipv6.ipv6_layout.ipv6[0]), | |
1972 | OFFLOAD(SIPV6_95_64, 4, ip6.saddr.s6_addr32[1], 0, | |
1973 | src_ipv4_src_ipv6.ipv6_layout.ipv6[4]), | |
1974 | OFFLOAD(SIPV6_63_32, 4, ip6.saddr.s6_addr32[2], 0, | |
1975 | src_ipv4_src_ipv6.ipv6_layout.ipv6[8]), | |
1976 | OFFLOAD(SIPV6_31_0, 4, ip6.saddr.s6_addr32[3], 0, | |
1977 | src_ipv4_src_ipv6.ipv6_layout.ipv6[12]), | |
1978 | OFFLOAD(DIPV6_127_96, 4, ip6.daddr.s6_addr32[0], 0, | |
1979 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6[0]), | |
1980 | OFFLOAD(DIPV6_95_64, 4, ip6.daddr.s6_addr32[1], 0, | |
1981 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6[4]), | |
1982 | OFFLOAD(DIPV6_63_32, 4, ip6.daddr.s6_addr32[2], 0, | |
1983 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6[8]), | |
1984 | OFFLOAD(DIPV6_31_0, 4, ip6.daddr.s6_addr32[3], 0, | |
1985 | dst_ipv4_dst_ipv6.ipv6_layout.ipv6[12]), | |
1986 | OFFLOAD(IPV6_HOPLIMIT, 1, ip6.hop_limit, 0, ttl_hoplimit), | |
1987 | ||
1988 | OFFLOAD(TCP_SPORT, 2, tcp.source, 0, tcp_sport), | |
1989 | OFFLOAD(TCP_DPORT, 2, tcp.dest, 0, tcp_dport), | |
1990 | OFFLOAD(TCP_FLAGS, 1, tcp.ack_seq, 5, tcp_flags), | |
1991 | ||
1992 | OFFLOAD(UDP_SPORT, 2, udp.source, 0, udp_sport), | |
1993 | OFFLOAD(UDP_DPORT, 2, udp.dest, 0, udp_dport), | |
d79b6df6 OG |
1994 | }; |
1995 | ||
218d05ce TZ |
1996 | /* On input attr->max_mod_hdr_actions tells how many HW actions can be parsed at |
1997 | * max from the SW pedit action. On success, attr->num_mod_hdr_actions | |
1998 | * says how many HW actions were actually parsed. | |
d79b6df6 | 1999 | */ |
c500c86b | 2000 | static int offload_pedit_fields(struct pedit_headers_action *hdrs, |
e98bedf5 | 2001 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
27c11b6b | 2002 | u32 *action_flags, |
e98bedf5 | 2003 | struct netlink_ext_ack *extack) |
d79b6df6 OG |
2004 | { |
2005 | struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals; | |
27c11b6b EB |
2006 | void *headers_c = get_match_headers_criteria(*action_flags, |
2007 | &parse_attr->spec); | |
2008 | void *headers_v = get_match_headers_value(*action_flags, | |
2009 | &parse_attr->spec); | |
2b64beba | 2010 | int i, action_size, nactions, max_actions, first, last, next_z; |
d79b6df6 | 2011 | void *s_masks_p, *a_masks_p, *vals_p; |
d79b6df6 OG |
2012 | struct mlx5_fields *f; |
2013 | u8 cmd, field_bsize; | |
e3ca4e05 | 2014 | u32 s_mask, a_mask; |
d79b6df6 | 2015 | unsigned long mask; |
2b64beba OG |
2016 | __be32 mask_be32; |
2017 | __be16 mask_be16; | |
d79b6df6 OG |
2018 | void *action; |
2019 | ||
73867881 PNA |
2020 | set_masks = &hdrs[0].masks; |
2021 | add_masks = &hdrs[1].masks; | |
2022 | set_vals = &hdrs[0].vals; | |
2023 | add_vals = &hdrs[1].vals; | |
d79b6df6 OG |
2024 | |
2025 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); | |
218d05ce TZ |
2026 | action = parse_attr->mod_hdr_actions + |
2027 | parse_attr->num_mod_hdr_actions * action_size; | |
2028 | ||
2029 | max_actions = parse_attr->max_mod_hdr_actions; | |
2030 | nactions = parse_attr->num_mod_hdr_actions; | |
d79b6df6 OG |
2031 | |
2032 | for (i = 0; i < ARRAY_SIZE(fields); i++) { | |
27c11b6b EB |
2033 | bool skip; |
2034 | ||
d79b6df6 OG |
2035 | f = &fields[i]; |
2036 | /* avoid seeing bits set from previous iterations */ | |
e3ca4e05 OG |
2037 | s_mask = 0; |
2038 | a_mask = 0; | |
d79b6df6 OG |
2039 | |
2040 | s_masks_p = (void *)set_masks + f->offset; | |
2041 | a_masks_p = (void *)add_masks + f->offset; | |
2042 | ||
2043 | memcpy(&s_mask, s_masks_p, f->size); | |
2044 | memcpy(&a_mask, a_masks_p, f->size); | |
2045 | ||
2046 | if (!s_mask && !a_mask) /* nothing to offload here */ | |
2047 | continue; | |
2048 | ||
2049 | if (s_mask && a_mask) { | |
e98bedf5 EB |
2050 | NL_SET_ERR_MSG_MOD(extack, |
2051 | "can't set and add to the same HW field"); | |
d79b6df6 OG |
2052 | printk(KERN_WARNING "mlx5: can't set and add to the same HW field (%x)\n", f->field); |
2053 | return -EOPNOTSUPP; | |
2054 | } | |
2055 | ||
2056 | if (nactions == max_actions) { | |
e98bedf5 EB |
2057 | NL_SET_ERR_MSG_MOD(extack, |
2058 | "too many pedit actions, can't offload"); | |
d79b6df6 OG |
2059 | printk(KERN_WARNING "mlx5: parsed %d pedit actions, can't do more\n", nactions); |
2060 | return -EOPNOTSUPP; | |
2061 | } | |
2062 | ||
27c11b6b | 2063 | skip = false; |
d79b6df6 | 2064 | if (s_mask) { |
27c11b6b EB |
2065 | void *match_mask = headers_c + f->match_offset; |
2066 | void *match_val = headers_v + f->match_offset; | |
2067 | ||
d79b6df6 OG |
2068 | cmd = MLX5_ACTION_TYPE_SET; |
2069 | mask = s_mask; | |
2070 | vals_p = (void *)set_vals + f->offset; | |
27c11b6b EB |
2071 | /* don't rewrite if we have a match on the same value */ |
2072 | if (cmp_val_mask(vals_p, s_masks_p, match_val, | |
2073 | match_mask, f->size)) | |
2074 | skip = true; | |
d79b6df6 OG |
2075 | /* clear to denote we consumed this field */ |
2076 | memset(s_masks_p, 0, f->size); | |
2077 | } else { | |
27c11b6b EB |
2078 | u32 zero = 0; |
2079 | ||
d79b6df6 OG |
2080 | cmd = MLX5_ACTION_TYPE_ADD; |
2081 | mask = a_mask; | |
2082 | vals_p = (void *)add_vals + f->offset; | |
27c11b6b EB |
2083 | /* add 0 is no change */ |
2084 | if (!memcmp(vals_p, &zero, f->size)) | |
2085 | skip = true; | |
d79b6df6 OG |
2086 | /* clear to denote we consumed this field */ |
2087 | memset(a_masks_p, 0, f->size); | |
2088 | } | |
27c11b6b EB |
2089 | if (skip) |
2090 | continue; | |
d79b6df6 | 2091 | |
d79b6df6 | 2092 | field_bsize = f->size * BITS_PER_BYTE; |
e3ca4e05 | 2093 | |
2b64beba OG |
2094 | if (field_bsize == 32) { |
2095 | mask_be32 = *(__be32 *)&mask; | |
2096 | mask = (__force unsigned long)cpu_to_le32(be32_to_cpu(mask_be32)); | |
2097 | } else if (field_bsize == 16) { | |
2098 | mask_be16 = *(__be16 *)&mask; | |
2099 | mask = (__force unsigned long)cpu_to_le16(be16_to_cpu(mask_be16)); | |
2100 | } | |
2101 | ||
d79b6df6 | 2102 | first = find_first_bit(&mask, field_bsize); |
2b64beba | 2103 | next_z = find_next_zero_bit(&mask, field_bsize, first); |
d79b6df6 | 2104 | last = find_last_bit(&mask, field_bsize); |
2b64beba | 2105 | if (first < next_z && next_z < last) { |
e98bedf5 EB |
2106 | NL_SET_ERR_MSG_MOD(extack, |
2107 | "rewrite of few sub-fields isn't supported"); | |
2b64beba | 2108 | printk(KERN_WARNING "mlx5: rewrite of few sub-fields (mask %lx) isn't offloaded\n", |
d79b6df6 OG |
2109 | mask); |
2110 | return -EOPNOTSUPP; | |
2111 | } | |
2112 | ||
2113 | MLX5_SET(set_action_in, action, action_type, cmd); | |
2114 | MLX5_SET(set_action_in, action, field, f->field); | |
2115 | ||
2116 | if (cmd == MLX5_ACTION_TYPE_SET) { | |
2b64beba | 2117 | MLX5_SET(set_action_in, action, offset, first); |
d79b6df6 | 2118 | /* length is num of bits to be written, zero means length of 32 */ |
2b64beba | 2119 | MLX5_SET(set_action_in, action, length, (last - first + 1)); |
d79b6df6 OG |
2120 | } |
2121 | ||
2122 | if (field_bsize == 32) | |
2b64beba | 2123 | MLX5_SET(set_action_in, action, data, ntohl(*(__be32 *)vals_p) >> first); |
d79b6df6 | 2124 | else if (field_bsize == 16) |
2b64beba | 2125 | MLX5_SET(set_action_in, action, data, ntohs(*(__be16 *)vals_p) >> first); |
d79b6df6 | 2126 | else if (field_bsize == 8) |
2b64beba | 2127 | MLX5_SET(set_action_in, action, data, *(u8 *)vals_p >> first); |
d79b6df6 OG |
2128 | |
2129 | action += action_size; | |
2130 | nactions++; | |
2131 | } | |
2132 | ||
2133 | parse_attr->num_mod_hdr_actions = nactions; | |
2134 | return 0; | |
2135 | } | |
2136 | ||
2cc1cb1d TZ |
2137 | static int mlx5e_flow_namespace_max_modify_action(struct mlx5_core_dev *mdev, |
2138 | int namespace) | |
2139 | { | |
2140 | if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */ | |
2141 | return MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, max_modify_header_actions); | |
2142 | else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */ | |
2143 | return MLX5_CAP_FLOWTABLE_NIC_RX(mdev, max_modify_header_actions); | |
2144 | } | |
2145 | ||
d79b6df6 | 2146 | static int alloc_mod_hdr_actions(struct mlx5e_priv *priv, |
c500c86b PNA |
2147 | struct pedit_headers_action *hdrs, |
2148 | int namespace, | |
d79b6df6 OG |
2149 | struct mlx5e_tc_flow_parse_attr *parse_attr) |
2150 | { | |
2151 | int nkeys, action_size, max_actions; | |
2152 | ||
c500c86b PNA |
2153 | nkeys = hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits + |
2154 | hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits; | |
d79b6df6 OG |
2155 | action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto); |
2156 | ||
2cc1cb1d | 2157 | max_actions = mlx5e_flow_namespace_max_modify_action(priv->mdev, namespace); |
d79b6df6 OG |
2158 | /* can get up to crazingly 16 HW actions in 32 bits pedit SW key */ |
2159 | max_actions = min(max_actions, nkeys * 16); | |
2160 | ||
2161 | parse_attr->mod_hdr_actions = kcalloc(max_actions, action_size, GFP_KERNEL); | |
2162 | if (!parse_attr->mod_hdr_actions) | |
2163 | return -ENOMEM; | |
2164 | ||
218d05ce | 2165 | parse_attr->max_mod_hdr_actions = max_actions; |
d79b6df6 OG |
2166 | return 0; |
2167 | } | |
2168 | ||
2169 | static const struct pedit_headers zero_masks = {}; | |
2170 | ||
2171 | static int parse_tc_pedit_action(struct mlx5e_priv *priv, | |
73867881 | 2172 | const struct flow_action_entry *act, int namespace, |
e98bedf5 | 2173 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
c500c86b | 2174 | struct pedit_headers_action *hdrs, |
e98bedf5 | 2175 | struct netlink_ext_ack *extack) |
d79b6df6 | 2176 | { |
73867881 PNA |
2177 | u8 cmd = (act->id == FLOW_ACTION_MANGLE) ? 0 : 1; |
2178 | int err = -EOPNOTSUPP; | |
d79b6df6 | 2179 | u32 mask, val, offset; |
73867881 | 2180 | u8 htype; |
d79b6df6 | 2181 | |
73867881 PNA |
2182 | htype = act->mangle.htype; |
2183 | err = -EOPNOTSUPP; /* can't be all optimistic */ | |
d79b6df6 | 2184 | |
73867881 PNA |
2185 | if (htype == FLOW_ACT_MANGLE_UNSPEC) { |
2186 | NL_SET_ERR_MSG_MOD(extack, "legacy pedit isn't offloaded"); | |
2187 | goto out_err; | |
2188 | } | |
d79b6df6 | 2189 | |
2cc1cb1d TZ |
2190 | if (!mlx5e_flow_namespace_max_modify_action(priv->mdev, namespace)) { |
2191 | NL_SET_ERR_MSG_MOD(extack, | |
2192 | "The pedit offload action is not supported"); | |
2193 | goto out_err; | |
2194 | } | |
2195 | ||
73867881 PNA |
2196 | mask = act->mangle.mask; |
2197 | val = act->mangle.val; | |
2198 | offset = act->mangle.offset; | |
d79b6df6 | 2199 | |
73867881 PNA |
2200 | err = set_pedit_val(htype, ~mask, val, offset, &hdrs[cmd]); |
2201 | if (err) | |
2202 | goto out_err; | |
c500c86b | 2203 | |
73867881 | 2204 | hdrs[cmd].pedits++; |
d79b6df6 | 2205 | |
c500c86b PNA |
2206 | return 0; |
2207 | out_err: | |
2208 | return err; | |
2209 | } | |
2210 | ||
2211 | static int alloc_tc_pedit_action(struct mlx5e_priv *priv, int namespace, | |
2212 | struct mlx5e_tc_flow_parse_attr *parse_attr, | |
2213 | struct pedit_headers_action *hdrs, | |
27c11b6b | 2214 | u32 *action_flags, |
c500c86b PNA |
2215 | struct netlink_ext_ack *extack) |
2216 | { | |
2217 | struct pedit_headers *cmd_masks; | |
2218 | int err; | |
2219 | u8 cmd; | |
2220 | ||
218d05ce | 2221 | if (!parse_attr->mod_hdr_actions) { |
a655fe9f | 2222 | err = alloc_mod_hdr_actions(priv, hdrs, namespace, parse_attr); |
218d05ce TZ |
2223 | if (err) |
2224 | goto out_err; | |
2225 | } | |
d79b6df6 | 2226 | |
27c11b6b | 2227 | err = offload_pedit_fields(hdrs, parse_attr, action_flags, extack); |
d79b6df6 OG |
2228 | if (err < 0) |
2229 | goto out_dealloc_parsed_actions; | |
2230 | ||
2231 | for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) { | |
c500c86b | 2232 | cmd_masks = &hdrs[cmd].masks; |
d79b6df6 | 2233 | if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) { |
e98bedf5 EB |
2234 | NL_SET_ERR_MSG_MOD(extack, |
2235 | "attempt to offload an unsupported field"); | |
b3a433de | 2236 | netdev_warn(priv->netdev, "attempt to offload an unsupported field (cmd %d)\n", cmd); |
d79b6df6 OG |
2237 | print_hex_dump(KERN_WARNING, "mask: ", DUMP_PREFIX_ADDRESS, |
2238 | 16, 1, cmd_masks, sizeof(zero_masks), true); | |
2239 | err = -EOPNOTSUPP; | |
2240 | goto out_dealloc_parsed_actions; | |
2241 | } | |
2242 | } | |
2243 | ||
2244 | return 0; | |
2245 | ||
2246 | out_dealloc_parsed_actions: | |
2247 | kfree(parse_attr->mod_hdr_actions); | |
2248 | out_err: | |
2249 | return err; | |
2250 | } | |
2251 | ||
e98bedf5 EB |
2252 | static bool csum_offload_supported(struct mlx5e_priv *priv, |
2253 | u32 action, | |
2254 | u32 update_flags, | |
2255 | struct netlink_ext_ack *extack) | |
26c02749 OG |
2256 | { |
2257 | u32 prot_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR | TCA_CSUM_UPDATE_FLAG_TCP | | |
2258 | TCA_CSUM_UPDATE_FLAG_UDP; | |
2259 | ||
2260 | /* The HW recalcs checksums only if re-writing headers */ | |
2261 | if (!(action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)) { | |
e98bedf5 EB |
2262 | NL_SET_ERR_MSG_MOD(extack, |
2263 | "TC csum action is only offloaded with pedit"); | |
26c02749 OG |
2264 | netdev_warn(priv->netdev, |
2265 | "TC csum action is only offloaded with pedit\n"); | |
2266 | return false; | |
2267 | } | |
2268 | ||
2269 | if (update_flags & ~prot_flags) { | |
e98bedf5 EB |
2270 | NL_SET_ERR_MSG_MOD(extack, |
2271 | "can't offload TC csum action for some header/s"); | |
26c02749 OG |
2272 | netdev_warn(priv->netdev, |
2273 | "can't offload TC csum action for some header/s - flags %#x\n", | |
2274 | update_flags); | |
2275 | return false; | |
2276 | } | |
2277 | ||
2278 | return true; | |
2279 | } | |
2280 | ||
8998576b DL |
2281 | struct ip_ttl_word { |
2282 | __u8 ttl; | |
2283 | __u8 protocol; | |
2284 | __sum16 check; | |
2285 | }; | |
2286 | ||
2287 | struct ipv6_hoplimit_word { | |
2288 | __be16 payload_len; | |
2289 | __u8 nexthdr; | |
2290 | __u8 hop_limit; | |
2291 | }; | |
2292 | ||
2293 | static bool is_action_keys_supported(const struct flow_action_entry *act) | |
2294 | { | |
2295 | u32 mask, offset; | |
2296 | u8 htype; | |
2297 | ||
2298 | htype = act->mangle.htype; | |
2299 | offset = act->mangle.offset; | |
2300 | mask = ~act->mangle.mask; | |
2301 | /* For IPv4 & IPv6 header check 4 byte word, | |
2302 | * to determine that modified fields | |
2303 | * are NOT ttl & hop_limit only. | |
2304 | */ | |
2305 | if (htype == FLOW_ACT_MANGLE_HDR_TYPE_IP4) { | |
2306 | struct ip_ttl_word *ttl_word = | |
2307 | (struct ip_ttl_word *)&mask; | |
2308 | ||
2309 | if (offset != offsetof(struct iphdr, ttl) || | |
2310 | ttl_word->protocol || | |
2311 | ttl_word->check) { | |
2312 | return true; | |
2313 | } | |
2314 | } else if (htype == FLOW_ACT_MANGLE_HDR_TYPE_IP6) { | |
2315 | struct ipv6_hoplimit_word *hoplimit_word = | |
2316 | (struct ipv6_hoplimit_word *)&mask; | |
2317 | ||
2318 | if (offset != offsetof(struct ipv6hdr, payload_len) || | |
2319 | hoplimit_word->payload_len || | |
2320 | hoplimit_word->nexthdr) { | |
2321 | return true; | |
2322 | } | |
2323 | } | |
2324 | return false; | |
2325 | } | |
2326 | ||
bdd66ac0 | 2327 | static bool modify_header_match_supported(struct mlx5_flow_spec *spec, |
73867881 | 2328 | struct flow_action *flow_action, |
1651925d | 2329 | u32 actions, |
e98bedf5 | 2330 | struct netlink_ext_ack *extack) |
bdd66ac0 | 2331 | { |
73867881 | 2332 | const struct flow_action_entry *act; |
bdd66ac0 | 2333 | bool modify_ip_header; |
bdd66ac0 OG |
2334 | void *headers_v; |
2335 | u16 ethertype; | |
8998576b | 2336 | u8 ip_proto; |
73867881 | 2337 | int i; |
bdd66ac0 | 2338 | |
8377629e | 2339 | headers_v = get_match_headers_value(actions, spec); |
bdd66ac0 OG |
2340 | ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype); |
2341 | ||
2342 | /* for non-IP we only re-write MACs, so we're okay */ | |
2343 | if (ethertype != ETH_P_IP && ethertype != ETH_P_IPV6) | |
2344 | goto out_ok; | |
2345 | ||
2346 | modify_ip_header = false; | |
73867881 PNA |
2347 | flow_action_for_each(i, act, flow_action) { |
2348 | if (act->id != FLOW_ACTION_MANGLE && | |
2349 | act->id != FLOW_ACTION_ADD) | |
bdd66ac0 OG |
2350 | continue; |
2351 | ||
8998576b | 2352 | if (is_action_keys_supported(act)) { |
73867881 PNA |
2353 | modify_ip_header = true; |
2354 | break; | |
bdd66ac0 OG |
2355 | } |
2356 | } | |
2357 | ||
2358 | ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol); | |
1ccef350 JL |
2359 | if (modify_ip_header && ip_proto != IPPROTO_TCP && |
2360 | ip_proto != IPPROTO_UDP && ip_proto != IPPROTO_ICMP) { | |
e98bedf5 EB |
2361 | NL_SET_ERR_MSG_MOD(extack, |
2362 | "can't offload re-write of non TCP/UDP"); | |
bdd66ac0 OG |
2363 | pr_info("can't offload re-write of ip proto %d\n", ip_proto); |
2364 | return false; | |
2365 | } | |
2366 | ||
2367 | out_ok: | |
2368 | return true; | |
2369 | } | |
2370 | ||
2371 | static bool actions_match_supported(struct mlx5e_priv *priv, | |
73867881 | 2372 | struct flow_action *flow_action, |
bdd66ac0 | 2373 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
e98bedf5 EB |
2374 | struct mlx5e_tc_flow *flow, |
2375 | struct netlink_ext_ack *extack) | |
bdd66ac0 OG |
2376 | { |
2377 | u32 actions; | |
2378 | ||
2379 | if (flow->flags & MLX5E_TC_FLOW_ESWITCH) | |
2380 | actions = flow->esw_attr->action; | |
2381 | else | |
2382 | actions = flow->nic_attr->action; | |
2383 | ||
7e29392e | 2384 | if (flow->flags & MLX5E_TC_FLOW_EGRESS && |
35a605db EB |
2385 | !((actions & MLX5_FLOW_CONTEXT_ACTION_DECAP) || |
2386 | (actions & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP))) | |
7e29392e RD |
2387 | return false; |
2388 | ||
bdd66ac0 | 2389 | if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) |
73867881 | 2390 | return modify_header_match_supported(&parse_attr->spec, |
a655fe9f | 2391 | flow_action, actions, |
e98bedf5 | 2392 | extack); |
bdd66ac0 OG |
2393 | |
2394 | return true; | |
2395 | } | |
2396 | ||
5c65c564 OG |
2397 | static bool same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv) |
2398 | { | |
2399 | struct mlx5_core_dev *fmdev, *pmdev; | |
816f6706 | 2400 | u64 fsystem_guid, psystem_guid; |
5c65c564 OG |
2401 | |
2402 | fmdev = priv->mdev; | |
2403 | pmdev = peer_priv->mdev; | |
2404 | ||
59c9d35e AH |
2405 | fsystem_guid = mlx5_query_nic_system_image_guid(fmdev); |
2406 | psystem_guid = mlx5_query_nic_system_image_guid(pmdev); | |
5c65c564 | 2407 | |
816f6706 | 2408 | return (fsystem_guid == psystem_guid); |
5c65c564 OG |
2409 | } |
2410 | ||
bdc837ee EB |
2411 | static int add_vlan_rewrite_action(struct mlx5e_priv *priv, int namespace, |
2412 | const struct flow_action_entry *act, | |
2413 | struct mlx5e_tc_flow_parse_attr *parse_attr, | |
2414 | struct pedit_headers_action *hdrs, | |
2415 | u32 *action, struct netlink_ext_ack *extack) | |
2416 | { | |
2417 | u16 mask16 = VLAN_VID_MASK; | |
2418 | u16 val16 = act->vlan.vid & VLAN_VID_MASK; | |
2419 | const struct flow_action_entry pedit_act = { | |
2420 | .id = FLOW_ACTION_MANGLE, | |
2421 | .mangle.htype = FLOW_ACT_MANGLE_HDR_TYPE_ETH, | |
2422 | .mangle.offset = offsetof(struct vlan_ethhdr, h_vlan_TCI), | |
2423 | .mangle.mask = ~(u32)be16_to_cpu(*(__be16 *)&mask16), | |
2424 | .mangle.val = (u32)be16_to_cpu(*(__be16 *)&val16), | |
2425 | }; | |
6fca9d1e | 2426 | u8 match_prio_mask, match_prio_val; |
bf2f3bca | 2427 | void *headers_c, *headers_v; |
bdc837ee EB |
2428 | int err; |
2429 | ||
bf2f3bca EB |
2430 | headers_c = get_match_headers_criteria(*action, &parse_attr->spec); |
2431 | headers_v = get_match_headers_value(*action, &parse_attr->spec); | |
2432 | ||
2433 | if (!(MLX5_GET(fte_match_set_lyr_2_4, headers_c, cvlan_tag) && | |
2434 | MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag))) { | |
2435 | NL_SET_ERR_MSG_MOD(extack, | |
2436 | "VLAN rewrite action must have VLAN protocol match"); | |
2437 | return -EOPNOTSUPP; | |
2438 | } | |
2439 | ||
6fca9d1e EB |
2440 | match_prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio); |
2441 | match_prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio); | |
2442 | if (act->vlan.prio != (match_prio_val & match_prio_mask)) { | |
2443 | NL_SET_ERR_MSG_MOD(extack, | |
2444 | "Changing VLAN prio is not supported"); | |
bdc837ee EB |
2445 | return -EOPNOTSUPP; |
2446 | } | |
2447 | ||
2448 | err = parse_tc_pedit_action(priv, &pedit_act, namespace, parse_attr, | |
2449 | hdrs, NULL); | |
2450 | *action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; | |
2451 | ||
2452 | return err; | |
2453 | } | |
2454 | ||
0bac1194 EB |
2455 | static int |
2456 | add_vlan_prio_tag_rewrite_action(struct mlx5e_priv *priv, | |
2457 | struct mlx5e_tc_flow_parse_attr *parse_attr, | |
2458 | struct pedit_headers_action *hdrs, | |
2459 | u32 *action, struct netlink_ext_ack *extack) | |
2460 | { | |
2461 | const struct flow_action_entry prio_tag_act = { | |
2462 | .vlan.vid = 0, | |
2463 | .vlan.prio = | |
2464 | MLX5_GET(fte_match_set_lyr_2_4, | |
2465 | get_match_headers_value(*action, | |
2466 | &parse_attr->spec), | |
2467 | first_prio) & | |
2468 | MLX5_GET(fte_match_set_lyr_2_4, | |
2469 | get_match_headers_criteria(*action, | |
2470 | &parse_attr->spec), | |
2471 | first_prio), | |
2472 | }; | |
2473 | ||
2474 | return add_vlan_rewrite_action(priv, MLX5_FLOW_NAMESPACE_FDB, | |
2475 | &prio_tag_act, parse_attr, hdrs, action, | |
2476 | extack); | |
2477 | } | |
2478 | ||
73867881 PNA |
2479 | static int parse_tc_nic_actions(struct mlx5e_priv *priv, |
2480 | struct flow_action *flow_action, | |
aa0cbbae | 2481 | struct mlx5e_tc_flow_parse_attr *parse_attr, |
e98bedf5 EB |
2482 | struct mlx5e_tc_flow *flow, |
2483 | struct netlink_ext_ack *extack) | |
e3a2b7ed | 2484 | { |
aa0cbbae | 2485 | struct mlx5_nic_flow_attr *attr = flow->nic_attr; |
73867881 PNA |
2486 | struct pedit_headers_action hdrs[2] = {}; |
2487 | const struct flow_action_entry *act; | |
1cab1cd7 | 2488 | u32 action = 0; |
244cd96a | 2489 | int err, i; |
e3a2b7ed | 2490 | |
73867881 | 2491 | if (!flow_action_has_entries(flow_action)) |
e3a2b7ed AV |
2492 | return -EINVAL; |
2493 | ||
3bc4b7bf | 2494 | attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG; |
e3a2b7ed | 2495 | |
73867881 PNA |
2496 | flow_action_for_each(i, act, flow_action) { |
2497 | switch (act->id) { | |
2498 | case FLOW_ACTION_DROP: | |
1cab1cd7 | 2499 | action |= MLX5_FLOW_CONTEXT_ACTION_DROP; |
aad7e08d AV |
2500 | if (MLX5_CAP_FLOWTABLE(priv->mdev, |
2501 | flow_table_properties_nic_receive.flow_counter)) | |
1cab1cd7 | 2502 | action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; |
73867881 PNA |
2503 | break; |
2504 | case FLOW_ACTION_MANGLE: | |
2505 | case FLOW_ACTION_ADD: | |
2506 | err = parse_tc_pedit_action(priv, act, MLX5_FLOW_NAMESPACE_KERNEL, | |
c500c86b | 2507 | parse_attr, hdrs, extack); |
2f4fe4ca OG |
2508 | if (err) |
2509 | return err; | |
2510 | ||
1cab1cd7 OG |
2511 | action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR | |
2512 | MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
73867881 | 2513 | break; |
bdc837ee EB |
2514 | case FLOW_ACTION_VLAN_MANGLE: |
2515 | err = add_vlan_rewrite_action(priv, | |
2516 | MLX5_FLOW_NAMESPACE_KERNEL, | |
2517 | act, parse_attr, hdrs, | |
2518 | &action, extack); | |
2519 | if (err) | |
2520 | return err; | |
2521 | ||
2522 | break; | |
73867881 | 2523 | case FLOW_ACTION_CSUM: |
1cab1cd7 | 2524 | if (csum_offload_supported(priv, action, |
73867881 | 2525 | act->csum_flags, |
e98bedf5 | 2526 | extack)) |
73867881 | 2527 | break; |
26c02749 OG |
2528 | |
2529 | return -EOPNOTSUPP; | |
73867881 PNA |
2530 | case FLOW_ACTION_REDIRECT: { |
2531 | struct net_device *peer_dev = act->dev; | |
5c65c564 OG |
2532 | |
2533 | if (priv->netdev->netdev_ops == peer_dev->netdev_ops && | |
2534 | same_hw_devs(priv, netdev_priv(peer_dev))) { | |
98b66cb1 | 2535 | parse_attr->mirred_ifindex[0] = peer_dev->ifindex; |
5c65c564 | 2536 | flow->flags |= MLX5E_TC_FLOW_HAIRPIN; |
1cab1cd7 OG |
2537 | action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | |
2538 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
5c65c564 | 2539 | } else { |
e98bedf5 EB |
2540 | NL_SET_ERR_MSG_MOD(extack, |
2541 | "device is not on same HW, can't offload"); | |
5c65c564 OG |
2542 | netdev_warn(priv->netdev, "device %s not on same HW, can't offload\n", |
2543 | peer_dev->name); | |
2544 | return -EINVAL; | |
2545 | } | |
73867881 PNA |
2546 | } |
2547 | break; | |
2548 | case FLOW_ACTION_MARK: { | |
2549 | u32 mark = act->mark; | |
e3a2b7ed AV |
2550 | |
2551 | if (mark & ~MLX5E_TC_FLOW_ID_MASK) { | |
e98bedf5 EB |
2552 | NL_SET_ERR_MSG_MOD(extack, |
2553 | "Bad flow mark - only 16 bit is supported"); | |
e3a2b7ed AV |
2554 | return -EINVAL; |
2555 | } | |
2556 | ||
3bc4b7bf | 2557 | attr->flow_tag = mark; |
1cab1cd7 | 2558 | action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; |
73867881 PNA |
2559 | } |
2560 | break; | |
2561 | default: | |
2cc1cb1d TZ |
2562 | NL_SET_ERR_MSG_MOD(extack, "The offload action is not supported"); |
2563 | return -EOPNOTSUPP; | |
e3a2b7ed | 2564 | } |
e3a2b7ed AV |
2565 | } |
2566 | ||
c500c86b PNA |
2567 | if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits || |
2568 | hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) { | |
2569 | err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_KERNEL, | |
27c11b6b | 2570 | parse_attr, hdrs, &action, extack); |
c500c86b PNA |
2571 | if (err) |
2572 | return err; | |
27c11b6b EB |
2573 | /* in case all pedit actions are skipped, remove the MOD_HDR |
2574 | * flag. | |
2575 | */ | |
e7739a60 | 2576 | if (parse_attr->num_mod_hdr_actions == 0) { |
27c11b6b | 2577 | action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; |
e7739a60 EB |
2578 | kfree(parse_attr->mod_hdr_actions); |
2579 | } | |
c500c86b PNA |
2580 | } |
2581 | ||
1cab1cd7 | 2582 | attr->action = action; |
73867881 | 2583 | if (!actions_match_supported(priv, flow_action, parse_attr, flow, extack)) |
bdd66ac0 OG |
2584 | return -EOPNOTSUPP; |
2585 | ||
e3a2b7ed AV |
2586 | return 0; |
2587 | } | |
2588 | ||
7f1a546e | 2589 | struct encap_key { |
1f6da306 | 2590 | const struct ip_tunnel_key *ip_tun_key; |
d386939a | 2591 | struct mlx5e_tc_tunnel *tc_tunnel; |
7f1a546e EB |
2592 | }; |
2593 | ||
2594 | static inline int cmp_encap_info(struct encap_key *a, | |
2595 | struct encap_key *b) | |
a54e20b4 | 2596 | { |
7f1a546e | 2597 | return memcmp(a->ip_tun_key, b->ip_tun_key, sizeof(*a->ip_tun_key)) || |
d386939a | 2598 | a->tc_tunnel->tunnel_type != b->tc_tunnel->tunnel_type; |
a54e20b4 HHZ |
2599 | } |
2600 | ||
7f1a546e | 2601 | static inline int hash_encap_info(struct encap_key *key) |
a54e20b4 | 2602 | { |
7f1a546e | 2603 | return jhash(key->ip_tun_key, sizeof(*key->ip_tun_key), |
d386939a | 2604 | key->tc_tunnel->tunnel_type); |
a54e20b4 HHZ |
2605 | } |
2606 | ||
a54e20b4 | 2607 | |
b1d90e6b RL |
2608 | static bool is_merged_eswitch_dev(struct mlx5e_priv *priv, |
2609 | struct net_device *peer_netdev) | |
2610 | { | |
2611 | struct mlx5e_priv *peer_priv; | |
2612 | ||
2613 | peer_priv = netdev_priv(peer_netdev); | |
2614 | ||
2615 | return (MLX5_CAP_ESW(priv->mdev, merged_eswitch) && | |
68931c7d RD |
2616 | mlx5e_eswitch_rep(priv->netdev) && |
2617 | mlx5e_eswitch_rep(peer_netdev) && | |
2618 | same_hw_devs(priv, peer_priv)); | |
b1d90e6b RL |
2619 | } |
2620 | ||
32f3671f | 2621 | |
f5bc2c5d | 2622 | |
a54e20b4 | 2623 | static int mlx5e_attach_encap(struct mlx5e_priv *priv, |
e98bedf5 | 2624 | struct mlx5e_tc_flow *flow, |
733d4f36 RD |
2625 | struct net_device *mirred_dev, |
2626 | int out_index, | |
8c4dc42b | 2627 | struct netlink_ext_ack *extack, |
0ad060ee RD |
2628 | struct net_device **encap_dev, |
2629 | bool *encap_valid) | |
a54e20b4 HHZ |
2630 | { |
2631 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
45247bf2 | 2632 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
733d4f36 | 2633 | struct mlx5e_tc_flow_parse_attr *parse_attr; |
1f6da306 | 2634 | const struct ip_tunnel_info *tun_info; |
7f1a546e | 2635 | struct encap_key key, e_key; |
c1ae1152 | 2636 | struct mlx5e_encap_entry *e; |
733d4f36 | 2637 | unsigned short family; |
a54e20b4 HHZ |
2638 | uintptr_t hash_key; |
2639 | bool found = false; | |
54c177ca | 2640 | int err = 0; |
a54e20b4 | 2641 | |
733d4f36 | 2642 | parse_attr = attr->parse_attr; |
1f6da306 | 2643 | tun_info = parse_attr->tun_info[out_index]; |
733d4f36 | 2644 | family = ip_tunnel_info_af(tun_info); |
7f1a546e | 2645 | key.ip_tun_key = &tun_info->key; |
d386939a | 2646 | key.tc_tunnel = mlx5e_get_tc_tun(mirred_dev); |
d71f895c EC |
2647 | if (!key.tc_tunnel) { |
2648 | NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel"); | |
2649 | return -EOPNOTSUPP; | |
2650 | } | |
733d4f36 | 2651 | |
7f1a546e | 2652 | hash_key = hash_encap_info(&key); |
a54e20b4 HHZ |
2653 | |
2654 | hash_for_each_possible_rcu(esw->offloads.encap_tbl, e, | |
2655 | encap_hlist, hash_key) { | |
1f6da306 | 2656 | e_key.ip_tun_key = &e->tun_info->key; |
d386939a | 2657 | e_key.tc_tunnel = e->tunnel; |
7f1a546e | 2658 | if (!cmp_encap_info(&e_key, &key)) { |
a54e20b4 HHZ |
2659 | found = true; |
2660 | break; | |
2661 | } | |
2662 | } | |
2663 | ||
b2812089 | 2664 | /* must verify if encap is valid or not */ |
45247bf2 OG |
2665 | if (found) |
2666 | goto attach_flow; | |
a54e20b4 HHZ |
2667 | |
2668 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
2669 | if (!e) | |
2670 | return -ENOMEM; | |
2671 | ||
1f6da306 | 2672 | e->tun_info = tun_info; |
101f4de9 | 2673 | err = mlx5e_tc_tun_init_encap_attr(mirred_dev, priv, e, extack); |
54c177ca OS |
2674 | if (err) |
2675 | goto out_err; | |
2676 | ||
a54e20b4 HHZ |
2677 | INIT_LIST_HEAD(&e->flows); |
2678 | ||
ce99f6b9 | 2679 | if (family == AF_INET) |
101f4de9 | 2680 | err = mlx5e_tc_tun_create_header_ipv4(priv, mirred_dev, e); |
ce99f6b9 | 2681 | else if (family == AF_INET6) |
101f4de9 | 2682 | err = mlx5e_tc_tun_create_header_ipv6(priv, mirred_dev, e); |
ce99f6b9 | 2683 | |
0ad060ee | 2684 | if (err) |
a54e20b4 HHZ |
2685 | goto out_err; |
2686 | ||
a54e20b4 HHZ |
2687 | hash_add_rcu(esw->offloads.encap_tbl, &e->encap_hlist, hash_key); |
2688 | ||
45247bf2 | 2689 | attach_flow: |
8c4dc42b EB |
2690 | list_add(&flow->encaps[out_index].list, &e->flows); |
2691 | flow->encaps[out_index].index = out_index; | |
45247bf2 | 2692 | *encap_dev = e->out_dev; |
8c4dc42b EB |
2693 | if (e->flags & MLX5_ENCAP_ENTRY_VALID) { |
2694 | attr->dests[out_index].encap_id = e->encap_id; | |
2695 | attr->dests[out_index].flags |= MLX5_ESW_DEST_ENCAP_VALID; | |
0ad060ee | 2696 | *encap_valid = true; |
8c4dc42b | 2697 | } else { |
0ad060ee | 2698 | *encap_valid = false; |
8c4dc42b | 2699 | } |
45247bf2 | 2700 | |
232c0013 | 2701 | return err; |
a54e20b4 HHZ |
2702 | |
2703 | out_err: | |
2704 | kfree(e); | |
2705 | return err; | |
2706 | } | |
2707 | ||
1482bd3d | 2708 | static int parse_tc_vlan_action(struct mlx5e_priv *priv, |
73867881 | 2709 | const struct flow_action_entry *act, |
1482bd3d JL |
2710 | struct mlx5_esw_flow_attr *attr, |
2711 | u32 *action) | |
2712 | { | |
cc495188 JL |
2713 | u8 vlan_idx = attr->total_vlan; |
2714 | ||
2715 | if (vlan_idx >= MLX5_FS_VLAN_DEPTH) | |
2716 | return -EOPNOTSUPP; | |
2717 | ||
73867881 PNA |
2718 | switch (act->id) { |
2719 | case FLOW_ACTION_VLAN_POP: | |
cc495188 JL |
2720 | if (vlan_idx) { |
2721 | if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, | |
2722 | MLX5_FS_VLAN_DEPTH)) | |
2723 | return -EOPNOTSUPP; | |
2724 | ||
2725 | *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2; | |
2726 | } else { | |
2727 | *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; | |
2728 | } | |
73867881 PNA |
2729 | break; |
2730 | case FLOW_ACTION_VLAN_PUSH: | |
2731 | attr->vlan_vid[vlan_idx] = act->vlan.vid; | |
2732 | attr->vlan_prio[vlan_idx] = act->vlan.prio; | |
2733 | attr->vlan_proto[vlan_idx] = act->vlan.proto; | |
cc495188 JL |
2734 | if (!attr->vlan_proto[vlan_idx]) |
2735 | attr->vlan_proto[vlan_idx] = htons(ETH_P_8021Q); | |
2736 | ||
2737 | if (vlan_idx) { | |
2738 | if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, | |
2739 | MLX5_FS_VLAN_DEPTH)) | |
2740 | return -EOPNOTSUPP; | |
2741 | ||
2742 | *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2; | |
2743 | } else { | |
2744 | if (!mlx5_eswitch_vlan_actions_supported(priv->mdev, 1) && | |
73867881 PNA |
2745 | (act->vlan.proto != htons(ETH_P_8021Q) || |
2746 | act->vlan.prio)) | |
cc495188 JL |
2747 | return -EOPNOTSUPP; |
2748 | ||
2749 | *action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH; | |
1482bd3d | 2750 | } |
73867881 PNA |
2751 | break; |
2752 | default: | |
bdc837ee | 2753 | return -EINVAL; |
1482bd3d JL |
2754 | } |
2755 | ||
cc495188 JL |
2756 | attr->total_vlan = vlan_idx + 1; |
2757 | ||
1482bd3d JL |
2758 | return 0; |
2759 | } | |
2760 | ||
278748a9 EB |
2761 | static int add_vlan_push_action(struct mlx5e_priv *priv, |
2762 | struct mlx5_esw_flow_attr *attr, | |
2763 | struct net_device **out_dev, | |
2764 | u32 *action) | |
2765 | { | |
2766 | struct net_device *vlan_dev = *out_dev; | |
2767 | struct flow_action_entry vlan_act = { | |
2768 | .id = FLOW_ACTION_VLAN_PUSH, | |
2769 | .vlan.vid = vlan_dev_vlan_id(vlan_dev), | |
2770 | .vlan.proto = vlan_dev_vlan_proto(vlan_dev), | |
2771 | .vlan.prio = 0, | |
2772 | }; | |
2773 | int err; | |
2774 | ||
2775 | err = parse_tc_vlan_action(priv, &vlan_act, attr, action); | |
2776 | if (err) | |
2777 | return err; | |
2778 | ||
2779 | *out_dev = dev_get_by_index_rcu(dev_net(vlan_dev), | |
2780 | dev_get_iflink(vlan_dev)); | |
2781 | if (is_vlan_dev(*out_dev)) | |
2782 | err = add_vlan_push_action(priv, attr, out_dev, action); | |
2783 | ||
2784 | return err; | |
2785 | } | |
2786 | ||
35a605db EB |
2787 | static int add_vlan_pop_action(struct mlx5e_priv *priv, |
2788 | struct mlx5_esw_flow_attr *attr, | |
2789 | u32 *action) | |
2790 | { | |
2791 | int nest_level = vlan_get_encap_level(attr->parse_attr->filter_dev); | |
2792 | struct flow_action_entry vlan_act = { | |
2793 | .id = FLOW_ACTION_VLAN_POP, | |
2794 | }; | |
2795 | int err = 0; | |
2796 | ||
2797 | while (nest_level--) { | |
2798 | err = parse_tc_vlan_action(priv, &vlan_act, attr, action); | |
2799 | if (err) | |
2800 | return err; | |
2801 | } | |
2802 | ||
2803 | return err; | |
2804 | } | |
2805 | ||
f6dc1264 PB |
2806 | bool mlx5e_is_valid_eswitch_fwd_dev(struct mlx5e_priv *priv, |
2807 | struct net_device *out_dev) | |
2808 | { | |
2809 | if (is_merged_eswitch_dev(priv, out_dev)) | |
2810 | return true; | |
2811 | ||
2812 | return mlx5e_eswitch_rep(out_dev) && | |
2813 | same_hw_devs(priv, netdev_priv(out_dev)); | |
2814 | } | |
2815 | ||
73867881 PNA |
2816 | static int parse_tc_fdb_actions(struct mlx5e_priv *priv, |
2817 | struct flow_action *flow_action, | |
e98bedf5 EB |
2818 | struct mlx5e_tc_flow *flow, |
2819 | struct netlink_ext_ack *extack) | |
03a9d11e | 2820 | { |
73867881 | 2821 | struct pedit_headers_action hdrs[2] = {}; |
bf07aa73 | 2822 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
ecf5bb79 | 2823 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
6f9af8ff | 2824 | struct mlx5e_tc_flow_parse_attr *parse_attr = attr->parse_attr; |
1d447a39 | 2825 | struct mlx5e_rep_priv *rpriv = priv->ppriv; |
73867881 PNA |
2826 | const struct ip_tunnel_info *info = NULL; |
2827 | const struct flow_action_entry *act; | |
a54e20b4 | 2828 | bool encap = false; |
1cab1cd7 | 2829 | u32 action = 0; |
244cd96a | 2830 | int err, i; |
03a9d11e | 2831 | |
73867881 | 2832 | if (!flow_action_has_entries(flow_action)) |
03a9d11e OG |
2833 | return -EINVAL; |
2834 | ||
73867881 PNA |
2835 | flow_action_for_each(i, act, flow_action) { |
2836 | switch (act->id) { | |
2837 | case FLOW_ACTION_DROP: | |
1cab1cd7 OG |
2838 | action |= MLX5_FLOW_CONTEXT_ACTION_DROP | |
2839 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
73867881 PNA |
2840 | break; |
2841 | case FLOW_ACTION_MANGLE: | |
2842 | case FLOW_ACTION_ADD: | |
2843 | err = parse_tc_pedit_action(priv, act, MLX5_FLOW_NAMESPACE_FDB, | |
c500c86b | 2844 | parse_attr, hdrs, extack); |
d7e75a32 OG |
2845 | if (err) |
2846 | return err; | |
2847 | ||
1cab1cd7 | 2848 | action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; |
e85e02ba | 2849 | attr->split_count = attr->out_count; |
73867881 PNA |
2850 | break; |
2851 | case FLOW_ACTION_CSUM: | |
1cab1cd7 | 2852 | if (csum_offload_supported(priv, action, |
73867881 PNA |
2853 | act->csum_flags, extack)) |
2854 | break; | |
26c02749 OG |
2855 | |
2856 | return -EOPNOTSUPP; | |
73867881 PNA |
2857 | case FLOW_ACTION_REDIRECT: |
2858 | case FLOW_ACTION_MIRRED: { | |
03a9d11e | 2859 | struct mlx5e_priv *out_priv; |
592d3651 | 2860 | struct net_device *out_dev; |
03a9d11e | 2861 | |
73867881 | 2862 | out_dev = act->dev; |
ef381359 OS |
2863 | if (!out_dev) { |
2864 | /* out_dev is NULL when filters with | |
2865 | * non-existing mirred device are replayed to | |
2866 | * the driver. | |
2867 | */ | |
2868 | return -EINVAL; | |
2869 | } | |
03a9d11e | 2870 | |
592d3651 | 2871 | if (attr->out_count >= MLX5_MAX_FLOW_FWD_VPORTS) { |
e98bedf5 EB |
2872 | NL_SET_ERR_MSG_MOD(extack, |
2873 | "can't support more output ports, can't offload forwarding"); | |
592d3651 CM |
2874 | pr_err("can't support more than %d output ports, can't offload forwarding\n", |
2875 | attr->out_count); | |
2876 | return -EOPNOTSUPP; | |
2877 | } | |
2878 | ||
f493f155 EB |
2879 | action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | |
2880 | MLX5_FLOW_CONTEXT_ACTION_COUNT; | |
f6dc1264 | 2881 | if (netdev_port_same_parent_id(priv->netdev, out_dev)) { |
7ba58ba7 RL |
2882 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
2883 | struct net_device *uplink_dev = mlx5_eswitch_uplink_get_proto_dev(esw, REP_ETH); | |
2884 | struct net_device *uplink_upper = netdev_master_upper_dev_get(uplink_dev); | |
2885 | ||
2886 | if (uplink_upper && | |
2887 | netif_is_lag_master(uplink_upper) && | |
2888 | uplink_upper == out_dev) | |
2889 | out_dev = uplink_dev; | |
2890 | ||
278748a9 EB |
2891 | if (is_vlan_dev(out_dev)) { |
2892 | err = add_vlan_push_action(priv, attr, | |
2893 | &out_dev, | |
2894 | &action); | |
2895 | if (err) | |
2896 | return err; | |
2897 | } | |
f6dc1264 | 2898 | |
35a605db EB |
2899 | if (is_vlan_dev(parse_attr->filter_dev)) { |
2900 | err = add_vlan_pop_action(priv, attr, | |
2901 | &action); | |
2902 | if (err) | |
2903 | return err; | |
2904 | } | |
278748a9 | 2905 | |
f6dc1264 PB |
2906 | if (!mlx5e_is_valid_eswitch_fwd_dev(priv, out_dev)) { |
2907 | NL_SET_ERR_MSG_MOD(extack, | |
2908 | "devices are not on same switch HW, can't offload forwarding"); | |
2909 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", | |
2910 | priv->netdev->name, out_dev->name); | |
a0646c88 | 2911 | return -EOPNOTSUPP; |
f6dc1264 | 2912 | } |
a0646c88 | 2913 | |
a54e20b4 | 2914 | out_priv = netdev_priv(out_dev); |
1d447a39 | 2915 | rpriv = out_priv->ppriv; |
df65a573 EB |
2916 | attr->dests[attr->out_count].rep = rpriv->rep; |
2917 | attr->dests[attr->out_count].mdev = out_priv->mdev; | |
2918 | attr->out_count++; | |
a54e20b4 | 2919 | } else if (encap) { |
8c4dc42b EB |
2920 | parse_attr->mirred_ifindex[attr->out_count] = |
2921 | out_dev->ifindex; | |
1f6da306 | 2922 | parse_attr->tun_info[attr->out_count] = info; |
8c4dc42b | 2923 | encap = false; |
f493f155 EB |
2924 | attr->dests[attr->out_count].flags |= |
2925 | MLX5_ESW_DEST_ENCAP; | |
1cc26d74 | 2926 | attr->out_count++; |
df65a573 EB |
2927 | /* attr->dests[].rep is resolved when we |
2928 | * handle encap | |
2929 | */ | |
ef381359 OS |
2930 | } else if (parse_attr->filter_dev != priv->netdev) { |
2931 | /* All mlx5 devices are called to configure | |
2932 | * high level device filters. Therefore, the | |
2933 | * *attempt* to install a filter on invalid | |
2934 | * eswitch should not trigger an explicit error | |
2935 | */ | |
2936 | return -EINVAL; | |
a54e20b4 | 2937 | } else { |
e98bedf5 EB |
2938 | NL_SET_ERR_MSG_MOD(extack, |
2939 | "devices are not on same switch HW, can't offload forwarding"); | |
03a9d11e OG |
2940 | pr_err("devices %s %s not on same switch HW, can't offload forwarding\n", |
2941 | priv->netdev->name, out_dev->name); | |
2942 | return -EINVAL; | |
2943 | } | |
73867881 PNA |
2944 | } |
2945 | break; | |
2946 | case FLOW_ACTION_TUNNEL_ENCAP: | |
2947 | info = act->tunnel; | |
a54e20b4 HHZ |
2948 | if (info) |
2949 | encap = true; | |
2950 | else | |
2951 | return -EOPNOTSUPP; | |
1482bd3d | 2952 | |
73867881 PNA |
2953 | break; |
2954 | case FLOW_ACTION_VLAN_PUSH: | |
2955 | case FLOW_ACTION_VLAN_POP: | |
76b496b1 EB |
2956 | if (act->id == FLOW_ACTION_VLAN_PUSH && |
2957 | (action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP)) { | |
2958 | /* Replace vlan pop+push with vlan modify */ | |
2959 | action &= ~MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; | |
2960 | err = add_vlan_rewrite_action(priv, | |
2961 | MLX5_FLOW_NAMESPACE_FDB, | |
2962 | act, parse_attr, hdrs, | |
2963 | &action, extack); | |
2964 | } else { | |
2965 | err = parse_tc_vlan_action(priv, act, attr, &action); | |
2966 | } | |
1482bd3d JL |
2967 | if (err) |
2968 | return err; | |
2969 | ||
bdc837ee EB |
2970 | attr->split_count = attr->out_count; |
2971 | break; | |
2972 | case FLOW_ACTION_VLAN_MANGLE: | |
2973 | err = add_vlan_rewrite_action(priv, | |
2974 | MLX5_FLOW_NAMESPACE_FDB, | |
2975 | act, parse_attr, hdrs, | |
2976 | &action, extack); | |
2977 | if (err) | |
2978 | return err; | |
2979 | ||
e85e02ba | 2980 | attr->split_count = attr->out_count; |
73867881 PNA |
2981 | break; |
2982 | case FLOW_ACTION_TUNNEL_DECAP: | |
1cab1cd7 | 2983 | action |= MLX5_FLOW_CONTEXT_ACTION_DECAP; |
73867881 PNA |
2984 | break; |
2985 | case FLOW_ACTION_GOTO: { | |
2986 | u32 dest_chain = act->chain_index; | |
bf07aa73 PB |
2987 | u32 max_chain = mlx5_eswitch_get_chain_range(esw); |
2988 | ||
2989 | if (dest_chain <= attr->chain) { | |
2990 | NL_SET_ERR_MSG(extack, "Goto earlier chain isn't supported"); | |
2991 | return -EOPNOTSUPP; | |
2992 | } | |
2993 | if (dest_chain > max_chain) { | |
2994 | NL_SET_ERR_MSG(extack, "Requested destination chain is out of supported range"); | |
2995 | return -EOPNOTSUPP; | |
2996 | } | |
e88afe75 | 2997 | action |= MLX5_FLOW_CONTEXT_ACTION_COUNT; |
bf07aa73 | 2998 | attr->dest_chain = dest_chain; |
73867881 PNA |
2999 | break; |
3000 | } | |
3001 | default: | |
2cc1cb1d TZ |
3002 | NL_SET_ERR_MSG_MOD(extack, "The offload action is not supported"); |
3003 | return -EOPNOTSUPP; | |
bf07aa73 | 3004 | } |
03a9d11e | 3005 | } |
bdd66ac0 | 3006 | |
0bac1194 EB |
3007 | if (MLX5_CAP_GEN(esw->dev, prio_tag_required) && |
3008 | action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) { | |
3009 | /* For prio tag mode, replace vlan pop with rewrite vlan prio | |
3010 | * tag rewrite. | |
3011 | */ | |
3012 | action &= ~MLX5_FLOW_CONTEXT_ACTION_VLAN_POP; | |
3013 | err = add_vlan_prio_tag_rewrite_action(priv, parse_attr, hdrs, | |
3014 | &action, extack); | |
3015 | if (err) | |
3016 | return err; | |
3017 | } | |
3018 | ||
c500c86b PNA |
3019 | if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits || |
3020 | hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) { | |
84be899f | 3021 | err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_FDB, |
27c11b6b | 3022 | parse_attr, hdrs, &action, extack); |
c500c86b PNA |
3023 | if (err) |
3024 | return err; | |
27c11b6b EB |
3025 | /* in case all pedit actions are skipped, remove the MOD_HDR |
3026 | * flag. we might have set split_count either by pedit or | |
3027 | * pop/push. if there is no pop/push either, reset it too. | |
3028 | */ | |
3029 | if (parse_attr->num_mod_hdr_actions == 0) { | |
3030 | action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; | |
e7739a60 | 3031 | kfree(parse_attr->mod_hdr_actions); |
27c11b6b EB |
3032 | if (!((action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) || |
3033 | (action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH))) | |
3034 | attr->split_count = 0; | |
3035 | } | |
c500c86b PNA |
3036 | } |
3037 | ||
1cab1cd7 | 3038 | attr->action = action; |
73867881 | 3039 | if (!actions_match_supported(priv, flow_action, parse_attr, flow, extack)) |
bdd66ac0 OG |
3040 | return -EOPNOTSUPP; |
3041 | ||
e88afe75 OG |
3042 | if (attr->dest_chain) { |
3043 | if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { | |
3044 | NL_SET_ERR_MSG(extack, "Mirroring goto chain rules isn't supported"); | |
3045 | return -EOPNOTSUPP; | |
3046 | } | |
3047 | attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; | |
3048 | } | |
3049 | ||
e85e02ba | 3050 | if (attr->split_count > 0 && !mlx5_esw_has_fwd_fdb(priv->mdev)) { |
e98bedf5 EB |
3051 | NL_SET_ERR_MSG_MOD(extack, |
3052 | "current firmware doesn't support split rule for port mirroring"); | |
592d3651 CM |
3053 | netdev_warn_once(priv->netdev, "current firmware doesn't support split rule for port mirroring\n"); |
3054 | return -EOPNOTSUPP; | |
3055 | } | |
3056 | ||
31c8eba5 | 3057 | return 0; |
03a9d11e OG |
3058 | } |
3059 | ||
5dbe906f | 3060 | static void get_flags(int flags, u16 *flow_flags) |
60bd4af8 | 3061 | { |
5dbe906f | 3062 | u16 __flow_flags = 0; |
60bd4af8 OG |
3063 | |
3064 | if (flags & MLX5E_TC_INGRESS) | |
3065 | __flow_flags |= MLX5E_TC_FLOW_INGRESS; | |
3066 | if (flags & MLX5E_TC_EGRESS) | |
3067 | __flow_flags |= MLX5E_TC_FLOW_EGRESS; | |
3068 | ||
d9ee0491 OG |
3069 | if (flags & MLX5E_TC_ESW_OFFLOAD) |
3070 | __flow_flags |= MLX5E_TC_FLOW_ESWITCH; | |
3071 | if (flags & MLX5E_TC_NIC_OFFLOAD) | |
3072 | __flow_flags |= MLX5E_TC_FLOW_NIC; | |
3073 | ||
60bd4af8 OG |
3074 | *flow_flags = __flow_flags; |
3075 | } | |
3076 | ||
05866c82 OG |
3077 | static const struct rhashtable_params tc_ht_params = { |
3078 | .head_offset = offsetof(struct mlx5e_tc_flow, node), | |
3079 | .key_offset = offsetof(struct mlx5e_tc_flow, cookie), | |
3080 | .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie), | |
3081 | .automatic_shrinking = true, | |
3082 | }; | |
3083 | ||
d9ee0491 | 3084 | static struct rhashtable *get_tc_ht(struct mlx5e_priv *priv, int flags) |
05866c82 | 3085 | { |
655dc3d2 OG |
3086 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; |
3087 | struct mlx5e_rep_priv *uplink_rpriv; | |
3088 | ||
d9ee0491 | 3089 | if (flags & MLX5E_TC_ESW_OFFLOAD) { |
655dc3d2 | 3090 | uplink_rpriv = mlx5_eswitch_get_uplink_priv(esw, REP_ETH); |
ec1366c2 | 3091 | return &uplink_rpriv->uplink_priv.tc_ht; |
d9ee0491 | 3092 | } else /* NIC offload */ |
655dc3d2 | 3093 | return &priv->fs.tc.ht; |
05866c82 OG |
3094 | } |
3095 | ||
04de7dda RD |
3096 | static bool is_peer_flow_needed(struct mlx5e_tc_flow *flow) |
3097 | { | |
1418ddd9 | 3098 | struct mlx5_esw_flow_attr *attr = flow->esw_attr; |
b05af6aa | 3099 | bool is_rep_ingress = attr->in_rep->vport != MLX5_VPORT_UPLINK && |
1418ddd9 AH |
3100 | flow->flags & MLX5E_TC_FLOW_INGRESS; |
3101 | bool act_is_encap = !!(attr->action & | |
3102 | MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT); | |
3103 | bool esw_paired = mlx5_devcom_is_paired(attr->in_mdev->priv.devcom, | |
3104 | MLX5_DEVCOM_ESW_OFFLOADS); | |
3105 | ||
10fbb1cd RD |
3106 | if (!esw_paired) |
3107 | return false; | |
3108 | ||
3109 | if ((mlx5_lag_is_sriov(attr->in_mdev) || | |
3110 | mlx5_lag_is_multipath(attr->in_mdev)) && | |
3111 | (is_rep_ingress || act_is_encap)) | |
3112 | return true; | |
3113 | ||
3114 | return false; | |
04de7dda RD |
3115 | } |
3116 | ||
a88780a9 RD |
3117 | static int |
3118 | mlx5e_alloc_flow(struct mlx5e_priv *priv, int attr_size, | |
f9e30088 | 3119 | struct flow_cls_offload *f, u16 flow_flags, |
a88780a9 RD |
3120 | struct mlx5e_tc_flow_parse_attr **__parse_attr, |
3121 | struct mlx5e_tc_flow **__flow) | |
e3a2b7ed | 3122 | { |
17091853 | 3123 | struct mlx5e_tc_flow_parse_attr *parse_attr; |
3bc4b7bf | 3124 | struct mlx5e_tc_flow *flow; |
a88780a9 | 3125 | int err; |
e3a2b7ed | 3126 | |
65ba8fb7 | 3127 | flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); |
1b9a07ee | 3128 | parse_attr = kvzalloc(sizeof(*parse_attr), GFP_KERNEL); |
17091853 | 3129 | if (!parse_attr || !flow) { |
e3a2b7ed AV |
3130 | err = -ENOMEM; |
3131 | goto err_free; | |
3132 | } | |
3133 | ||
3134 | flow->cookie = f->cookie; | |
65ba8fb7 | 3135 | flow->flags = flow_flags; |
655dc3d2 | 3136 | flow->priv = priv; |
e3a2b7ed | 3137 | |
a88780a9 RD |
3138 | *__flow = flow; |
3139 | *__parse_attr = parse_attr; | |
3140 | ||
3141 | return 0; | |
3142 | ||
3143 | err_free: | |
3144 | kfree(flow); | |
3145 | kvfree(parse_attr); | |
3146 | return err; | |
3147 | } | |
3148 | ||
988ab9c7 TZ |
3149 | static void |
3150 | mlx5e_flow_esw_attr_init(struct mlx5_esw_flow_attr *esw_attr, | |
3151 | struct mlx5e_priv *priv, | |
3152 | struct mlx5e_tc_flow_parse_attr *parse_attr, | |
f9e30088 | 3153 | struct flow_cls_offload *f, |
988ab9c7 TZ |
3154 | struct mlx5_eswitch_rep *in_rep, |
3155 | struct mlx5_core_dev *in_mdev) | |
3156 | { | |
3157 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
3158 | ||
3159 | esw_attr->parse_attr = parse_attr; | |
3160 | esw_attr->chain = f->common.chain_index; | |
3161 | esw_attr->prio = TC_H_MAJ(f->common.prio) >> 16; | |
3162 | ||
3163 | esw_attr->in_rep = in_rep; | |
3164 | esw_attr->in_mdev = in_mdev; | |
3165 | ||
3166 | if (MLX5_CAP_ESW(esw->dev, counter_eswitch_affinity) == | |
3167 | MLX5_COUNTER_SOURCE_ESWITCH) | |
3168 | esw_attr->counter_dev = in_mdev; | |
3169 | else | |
3170 | esw_attr->counter_dev = priv->mdev; | |
3171 | } | |
3172 | ||
71129676 | 3173 | static struct mlx5e_tc_flow * |
04de7dda | 3174 | __mlx5e_add_fdb_flow(struct mlx5e_priv *priv, |
f9e30088 | 3175 | struct flow_cls_offload *f, |
04de7dda RD |
3176 | u16 flow_flags, |
3177 | struct net_device *filter_dev, | |
3178 | struct mlx5_eswitch_rep *in_rep, | |
71129676 | 3179 | struct mlx5_core_dev *in_mdev) |
a88780a9 | 3180 | { |
f9e30088 | 3181 | struct flow_rule *rule = flow_cls_offload_flow_rule(f); |
a88780a9 RD |
3182 | struct netlink_ext_ack *extack = f->common.extack; |
3183 | struct mlx5e_tc_flow_parse_attr *parse_attr; | |
3184 | struct mlx5e_tc_flow *flow; | |
3185 | int attr_size, err; | |
e3a2b7ed | 3186 | |
a88780a9 RD |
3187 | flow_flags |= MLX5E_TC_FLOW_ESWITCH; |
3188 | attr_size = sizeof(struct mlx5_esw_flow_attr); | |
3189 | err = mlx5e_alloc_flow(priv, attr_size, f, flow_flags, | |
3190 | &parse_attr, &flow); | |
3191 | if (err) | |
3192 | goto out; | |
988ab9c7 | 3193 | |
d11afc26 | 3194 | parse_attr->filter_dev = filter_dev; |
988ab9c7 TZ |
3195 | mlx5e_flow_esw_attr_init(flow->esw_attr, |
3196 | priv, parse_attr, | |
3197 | f, in_rep, in_mdev); | |
3198 | ||
54c177ca OS |
3199 | err = parse_cls_flower(flow->priv, flow, &parse_attr->spec, |
3200 | f, filter_dev); | |
d11afc26 OS |
3201 | if (err) |
3202 | goto err_free; | |
a88780a9 | 3203 | |
6f9af8ff | 3204 | err = parse_tc_fdb_actions(priv, &rule->action, flow, extack); |
a88780a9 RD |
3205 | if (err) |
3206 | goto err_free; | |
3207 | ||
7040632d | 3208 | err = mlx5e_tc_add_fdb_flow(priv, flow, extack); |
ef06c9ee RD |
3209 | if (err) { |
3210 | if (!(err == -ENETUNREACH && mlx5_lag_is_multipath(in_mdev))) | |
3211 | goto err_free; | |
3212 | ||
b4a23329 | 3213 | add_unready_flow(flow); |
ef06c9ee | 3214 | } |
e3a2b7ed | 3215 | |
71129676 | 3216 | return flow; |
a88780a9 RD |
3217 | |
3218 | err_free: | |
3219 | kfree(flow); | |
3220 | kvfree(parse_attr); | |
3221 | out: | |
71129676 | 3222 | return ERR_PTR(err); |
a88780a9 RD |
3223 | } |
3224 | ||
f9e30088 | 3225 | static int mlx5e_tc_add_fdb_peer_flow(struct flow_cls_offload *f, |
95dc1902 RD |
3226 | struct mlx5e_tc_flow *flow, |
3227 | u16 flow_flags) | |
04de7dda RD |
3228 | { |
3229 | struct mlx5e_priv *priv = flow->priv, *peer_priv; | |
3230 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch, *peer_esw; | |
3231 | struct mlx5_devcom *devcom = priv->mdev->priv.devcom; | |
3232 | struct mlx5e_tc_flow_parse_attr *parse_attr; | |
3233 | struct mlx5e_rep_priv *peer_urpriv; | |
3234 | struct mlx5e_tc_flow *peer_flow; | |
3235 | struct mlx5_core_dev *in_mdev; | |
3236 | int err = 0; | |
3237 | ||
3238 | peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); | |
3239 | if (!peer_esw) | |
3240 | return -ENODEV; | |
3241 | ||
3242 | peer_urpriv = mlx5_eswitch_get_uplink_priv(peer_esw, REP_ETH); | |
3243 | peer_priv = netdev_priv(peer_urpriv->netdev); | |
3244 | ||
3245 | /* in_mdev is assigned of which the packet originated from. | |
3246 | * So packets redirected to uplink use the same mdev of the | |
3247 | * original flow and packets redirected from uplink use the | |
3248 | * peer mdev. | |
3249 | */ | |
b05af6aa | 3250 | if (flow->esw_attr->in_rep->vport == MLX5_VPORT_UPLINK) |
04de7dda RD |
3251 | in_mdev = peer_priv->mdev; |
3252 | else | |
3253 | in_mdev = priv->mdev; | |
3254 | ||
3255 | parse_attr = flow->esw_attr->parse_attr; | |
95dc1902 | 3256 | peer_flow = __mlx5e_add_fdb_flow(peer_priv, f, flow_flags, |
71129676 JG |
3257 | parse_attr->filter_dev, |
3258 | flow->esw_attr->in_rep, in_mdev); | |
3259 | if (IS_ERR(peer_flow)) { | |
3260 | err = PTR_ERR(peer_flow); | |
04de7dda | 3261 | goto out; |
71129676 | 3262 | } |
04de7dda RD |
3263 | |
3264 | flow->peer_flow = peer_flow; | |
3265 | flow->flags |= MLX5E_TC_FLOW_DUP; | |
3266 | mutex_lock(&esw->offloads.peer_mutex); | |
3267 | list_add_tail(&flow->peer, &esw->offloads.peer_flows); | |
3268 | mutex_unlock(&esw->offloads.peer_mutex); | |
3269 | ||
3270 | out: | |
3271 | mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); | |
3272 | return err; | |
3273 | } | |
3274 | ||
3275 | static int | |
3276 | mlx5e_add_fdb_flow(struct mlx5e_priv *priv, | |
f9e30088 | 3277 | struct flow_cls_offload *f, |
04de7dda RD |
3278 | u16 flow_flags, |
3279 | struct net_device *filter_dev, | |
3280 | struct mlx5e_tc_flow **__flow) | |
3281 | { | |
3282 | struct mlx5e_rep_priv *rpriv = priv->ppriv; | |
3283 | struct mlx5_eswitch_rep *in_rep = rpriv->rep; | |
3284 | struct mlx5_core_dev *in_mdev = priv->mdev; | |
3285 | struct mlx5e_tc_flow *flow; | |
3286 | int err; | |
3287 | ||
71129676 JG |
3288 | flow = __mlx5e_add_fdb_flow(priv, f, flow_flags, filter_dev, in_rep, |
3289 | in_mdev); | |
3290 | if (IS_ERR(flow)) | |
3291 | return PTR_ERR(flow); | |
04de7dda RD |
3292 | |
3293 | if (is_peer_flow_needed(flow)) { | |
95dc1902 | 3294 | err = mlx5e_tc_add_fdb_peer_flow(f, flow, flow_flags); |
04de7dda RD |
3295 | if (err) { |
3296 | mlx5e_tc_del_fdb_flow(priv, flow); | |
3297 | goto out; | |
3298 | } | |
3299 | } | |
3300 | ||
3301 | *__flow = flow; | |
3302 | ||
3303 | return 0; | |
3304 | ||
3305 | out: | |
3306 | return err; | |
3307 | } | |
3308 | ||
a88780a9 RD |
3309 | static int |
3310 | mlx5e_add_nic_flow(struct mlx5e_priv *priv, | |
f9e30088 | 3311 | struct flow_cls_offload *f, |
5dbe906f | 3312 | u16 flow_flags, |
d11afc26 | 3313 | struct net_device *filter_dev, |
a88780a9 RD |
3314 | struct mlx5e_tc_flow **__flow) |
3315 | { | |
f9e30088 | 3316 | struct flow_rule *rule = flow_cls_offload_flow_rule(f); |
a88780a9 RD |
3317 | struct netlink_ext_ack *extack = f->common.extack; |
3318 | struct mlx5e_tc_flow_parse_attr *parse_attr; | |
3319 | struct mlx5e_tc_flow *flow; | |
3320 | int attr_size, err; | |
3321 | ||
bf07aa73 PB |
3322 | /* multi-chain not supported for NIC rules */ |
3323 | if (!tc_cls_can_offload_and_chain0(priv->netdev, &f->common)) | |
3324 | return -EOPNOTSUPP; | |
3325 | ||
a88780a9 RD |
3326 | flow_flags |= MLX5E_TC_FLOW_NIC; |
3327 | attr_size = sizeof(struct mlx5_nic_flow_attr); | |
3328 | err = mlx5e_alloc_flow(priv, attr_size, f, flow_flags, | |
3329 | &parse_attr, &flow); | |
3330 | if (err) | |
3331 | goto out; | |
3332 | ||
d11afc26 | 3333 | parse_attr->filter_dev = filter_dev; |
54c177ca OS |
3334 | err = parse_cls_flower(flow->priv, flow, &parse_attr->spec, |
3335 | f, filter_dev); | |
d11afc26 OS |
3336 | if (err) |
3337 | goto err_free; | |
3338 | ||
73867881 | 3339 | err = parse_tc_nic_actions(priv, &rule->action, parse_attr, flow, extack); |
a88780a9 RD |
3340 | if (err) |
3341 | goto err_free; | |
3342 | ||
3343 | err = mlx5e_tc_add_nic_flow(priv, parse_attr, flow, extack); | |
3344 | if (err) | |
3345 | goto err_free; | |
3346 | ||
3347 | flow->flags |= MLX5E_TC_FLOW_OFFLOADED; | |
3348 | kvfree(parse_attr); | |
3349 | *__flow = flow; | |
3350 | ||
3351 | return 0; | |
e3a2b7ed | 3352 | |
e3a2b7ed | 3353 | err_free: |
a88780a9 | 3354 | kfree(flow); |
17091853 | 3355 | kvfree(parse_attr); |
a88780a9 RD |
3356 | out: |
3357 | return err; | |
3358 | } | |
3359 | ||
3360 | static int | |
3361 | mlx5e_tc_add_flow(struct mlx5e_priv *priv, | |
f9e30088 | 3362 | struct flow_cls_offload *f, |
a88780a9 | 3363 | int flags, |
d11afc26 | 3364 | struct net_device *filter_dev, |
a88780a9 RD |
3365 | struct mlx5e_tc_flow **flow) |
3366 | { | |
3367 | struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; | |
5dbe906f | 3368 | u16 flow_flags; |
a88780a9 RD |
3369 | int err; |
3370 | ||
3371 | get_flags(flags, &flow_flags); | |
3372 | ||
bf07aa73 PB |
3373 | if (!tc_can_offload_extack(priv->netdev, f->common.extack)) |
3374 | return -EOPNOTSUPP; | |
3375 | ||
f6455de0 | 3376 | if (esw && esw->mode == MLX5_ESWITCH_OFFLOADS) |
d11afc26 OS |
3377 | err = mlx5e_add_fdb_flow(priv, f, flow_flags, |
3378 | filter_dev, flow); | |
a88780a9 | 3379 | else |
d11afc26 OS |
3380 | err = mlx5e_add_nic_flow(priv, f, flow_flags, |
3381 | filter_dev, flow); | |
a88780a9 RD |
3382 | |
3383 | return err; | |
3384 | } | |
3385 | ||
71d82d2a | 3386 | int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv, |
f9e30088 | 3387 | struct flow_cls_offload *f, int flags) |
a88780a9 RD |
3388 | { |
3389 | struct netlink_ext_ack *extack = f->common.extack; | |
d9ee0491 | 3390 | struct rhashtable *tc_ht = get_tc_ht(priv, flags); |
a88780a9 RD |
3391 | struct mlx5e_tc_flow *flow; |
3392 | int err = 0; | |
3393 | ||
3394 | flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); | |
3395 | if (flow) { | |
3396 | NL_SET_ERR_MSG_MOD(extack, | |
3397 | "flow cookie already exists, ignoring"); | |
3398 | netdev_warn_once(priv->netdev, | |
3399 | "flow cookie %lx already exists, ignoring\n", | |
3400 | f->cookie); | |
0e1c1a2f | 3401 | err = -EEXIST; |
a88780a9 RD |
3402 | goto out; |
3403 | } | |
3404 | ||
d11afc26 | 3405 | err = mlx5e_tc_add_flow(priv, f, flags, dev, &flow); |
a88780a9 RD |
3406 | if (err) |
3407 | goto out; | |
3408 | ||
3409 | err = rhashtable_insert_fast(tc_ht, &flow->node, tc_ht_params); | |
3410 | if (err) | |
3411 | goto err_free; | |
3412 | ||
3413 | return 0; | |
3414 | ||
3415 | err_free: | |
3416 | mlx5e_tc_del_flow(priv, flow); | |
232c0013 | 3417 | kfree(flow); |
a88780a9 | 3418 | out: |
e3a2b7ed AV |
3419 | return err; |
3420 | } | |
3421 | ||
8f8ae895 OG |
3422 | #define DIRECTION_MASK (MLX5E_TC_INGRESS | MLX5E_TC_EGRESS) |
3423 | #define FLOW_DIRECTION_MASK (MLX5E_TC_FLOW_INGRESS | MLX5E_TC_FLOW_EGRESS) | |
3424 | ||
3425 | static bool same_flow_direction(struct mlx5e_tc_flow *flow, int flags) | |
3426 | { | |
3427 | if ((flow->flags & FLOW_DIRECTION_MASK) == (flags & DIRECTION_MASK)) | |
3428 | return true; | |
3429 | ||
3430 | return false; | |
3431 | } | |
3432 | ||
71d82d2a | 3433 | int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv, |
f9e30088 | 3434 | struct flow_cls_offload *f, int flags) |
e3a2b7ed | 3435 | { |
d9ee0491 | 3436 | struct rhashtable *tc_ht = get_tc_ht(priv, flags); |
e3a2b7ed | 3437 | struct mlx5e_tc_flow *flow; |
e3a2b7ed | 3438 | |
05866c82 | 3439 | flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); |
8f8ae895 | 3440 | if (!flow || !same_flow_direction(flow, flags)) |
e3a2b7ed AV |
3441 | return -EINVAL; |
3442 | ||
05866c82 | 3443 | rhashtable_remove_fast(tc_ht, &flow->node, tc_ht_params); |
e3a2b7ed | 3444 | |
961e8979 | 3445 | mlx5e_tc_del_flow(priv, flow); |
e3a2b7ed AV |
3446 | |
3447 | kfree(flow); | |
3448 | ||
3449 | return 0; | |
3450 | } | |
3451 | ||
71d82d2a | 3452 | int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv, |
f9e30088 | 3453 | struct flow_cls_offload *f, int flags) |
aad7e08d | 3454 | { |
04de7dda | 3455 | struct mlx5_devcom *devcom = priv->mdev->priv.devcom; |
d9ee0491 | 3456 | struct rhashtable *tc_ht = get_tc_ht(priv, flags); |
04de7dda | 3457 | struct mlx5_eswitch *peer_esw; |
aad7e08d | 3458 | struct mlx5e_tc_flow *flow; |
aad7e08d | 3459 | struct mlx5_fc *counter; |
316d5f72 RD |
3460 | u64 lastuse = 0; |
3461 | u64 packets = 0; | |
3462 | u64 bytes = 0; | |
aad7e08d | 3463 | |
05866c82 | 3464 | flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); |
8f8ae895 | 3465 | if (!flow || !same_flow_direction(flow, flags)) |
aad7e08d AV |
3466 | return -EINVAL; |
3467 | ||
316d5f72 RD |
3468 | if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { |
3469 | counter = mlx5e_tc_get_counter(flow); | |
3470 | if (!counter) | |
3471 | return 0; | |
aad7e08d | 3472 | |
316d5f72 RD |
3473 | mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); |
3474 | } | |
aad7e08d | 3475 | |
316d5f72 RD |
3476 | /* Under multipath it's possible for one rule to be currently |
3477 | * un-offloaded while the other rule is offloaded. | |
3478 | */ | |
04de7dda RD |
3479 | peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); |
3480 | if (!peer_esw) | |
3481 | goto out; | |
3482 | ||
3483 | if ((flow->flags & MLX5E_TC_FLOW_DUP) && | |
3484 | (flow->peer_flow->flags & MLX5E_TC_FLOW_OFFLOADED)) { | |
3485 | u64 bytes2; | |
3486 | u64 packets2; | |
3487 | u64 lastuse2; | |
3488 | ||
3489 | counter = mlx5e_tc_get_counter(flow->peer_flow); | |
316d5f72 RD |
3490 | if (!counter) |
3491 | goto no_peer_counter; | |
04de7dda RD |
3492 | mlx5_fc_query_cached(counter, &bytes2, &packets2, &lastuse2); |
3493 | ||
3494 | bytes += bytes2; | |
3495 | packets += packets2; | |
3496 | lastuse = max_t(u64, lastuse, lastuse2); | |
3497 | } | |
3498 | ||
316d5f72 | 3499 | no_peer_counter: |
04de7dda | 3500 | mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); |
04de7dda | 3501 | out: |
3b1903ef | 3502 | flow_stats_update(&f->stats, bytes, packets, lastuse); |
fed06ee8 | 3503 | |
aad7e08d AV |
3504 | return 0; |
3505 | } | |
3506 | ||
4d8fcf21 AH |
3507 | static void mlx5e_tc_hairpin_update_dead_peer(struct mlx5e_priv *priv, |
3508 | struct mlx5e_priv *peer_priv) | |
3509 | { | |
3510 | struct mlx5_core_dev *peer_mdev = peer_priv->mdev; | |
3511 | struct mlx5e_hairpin_entry *hpe; | |
3512 | u16 peer_vhca_id; | |
3513 | int bkt; | |
3514 | ||
3515 | if (!same_hw_devs(priv, peer_priv)) | |
3516 | return; | |
3517 | ||
3518 | peer_vhca_id = MLX5_CAP_GEN(peer_mdev, vhca_id); | |
3519 | ||
3520 | hash_for_each(priv->fs.tc.hairpin_tbl, bkt, hpe, hairpin_hlist) { | |
3521 | if (hpe->peer_vhca_id == peer_vhca_id) | |
3522 | hpe->hp->pair->peer_gone = true; | |
3523 | } | |
3524 | } | |
3525 | ||
3526 | static int mlx5e_tc_netdev_event(struct notifier_block *this, | |
3527 | unsigned long event, void *ptr) | |
3528 | { | |
3529 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); | |
3530 | struct mlx5e_flow_steering *fs; | |
3531 | struct mlx5e_priv *peer_priv; | |
3532 | struct mlx5e_tc_table *tc; | |
3533 | struct mlx5e_priv *priv; | |
3534 | ||
3535 | if (ndev->netdev_ops != &mlx5e_netdev_ops || | |
3536 | event != NETDEV_UNREGISTER || | |
3537 | ndev->reg_state == NETREG_REGISTERED) | |
3538 | return NOTIFY_DONE; | |
3539 | ||
3540 | tc = container_of(this, struct mlx5e_tc_table, netdevice_nb); | |
3541 | fs = container_of(tc, struct mlx5e_flow_steering, tc); | |
3542 | priv = container_of(fs, struct mlx5e_priv, fs); | |
3543 | peer_priv = netdev_priv(ndev); | |
3544 | if (priv == peer_priv || | |
3545 | !(priv->netdev->features & NETIF_F_HW_TC)) | |
3546 | return NOTIFY_DONE; | |
3547 | ||
3548 | mlx5e_tc_hairpin_update_dead_peer(priv, peer_priv); | |
3549 | ||
3550 | return NOTIFY_DONE; | |
3551 | } | |
3552 | ||
655dc3d2 | 3553 | int mlx5e_tc_nic_init(struct mlx5e_priv *priv) |
e8f887ac | 3554 | { |
acff797c | 3555 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
4d8fcf21 | 3556 | int err; |
e8f887ac | 3557 | |
11c9c548 | 3558 | hash_init(tc->mod_hdr_tbl); |
5c65c564 | 3559 | hash_init(tc->hairpin_tbl); |
11c9c548 | 3560 | |
4d8fcf21 AH |
3561 | err = rhashtable_init(&tc->ht, &tc_ht_params); |
3562 | if (err) | |
3563 | return err; | |
3564 | ||
3565 | tc->netdevice_nb.notifier_call = mlx5e_tc_netdev_event; | |
3566 | if (register_netdevice_notifier(&tc->netdevice_nb)) { | |
3567 | tc->netdevice_nb.notifier_call = NULL; | |
3568 | mlx5_core_warn(priv->mdev, "Failed to register netdev notifier\n"); | |
3569 | } | |
3570 | ||
3571 | return err; | |
e8f887ac AV |
3572 | } |
3573 | ||
3574 | static void _mlx5e_tc_del_flow(void *ptr, void *arg) | |
3575 | { | |
3576 | struct mlx5e_tc_flow *flow = ptr; | |
655dc3d2 | 3577 | struct mlx5e_priv *priv = flow->priv; |
e8f887ac | 3578 | |
961e8979 | 3579 | mlx5e_tc_del_flow(priv, flow); |
e8f887ac AV |
3580 | kfree(flow); |
3581 | } | |
3582 | ||
655dc3d2 | 3583 | void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) |
e8f887ac | 3584 | { |
acff797c | 3585 | struct mlx5e_tc_table *tc = &priv->fs.tc; |
e8f887ac | 3586 | |
4d8fcf21 AH |
3587 | if (tc->netdevice_nb.notifier_call) |
3588 | unregister_netdevice_notifier(&tc->netdevice_nb); | |
3589 | ||
d9ee0491 | 3590 | rhashtable_destroy(&tc->ht); |
e8f887ac | 3591 | |
acff797c MG |
3592 | if (!IS_ERR_OR_NULL(tc->t)) { |
3593 | mlx5_destroy_flow_table(tc->t); | |
3594 | tc->t = NULL; | |
e8f887ac AV |
3595 | } |
3596 | } | |
655dc3d2 OG |
3597 | |
3598 | int mlx5e_tc_esw_init(struct rhashtable *tc_ht) | |
3599 | { | |
3600 | return rhashtable_init(tc_ht, &tc_ht_params); | |
3601 | } | |
3602 | ||
3603 | void mlx5e_tc_esw_cleanup(struct rhashtable *tc_ht) | |
3604 | { | |
3605 | rhashtable_free_and_destroy(tc_ht, _mlx5e_tc_del_flow, NULL); | |
3606 | } | |
01252a27 | 3607 | |
d9ee0491 | 3608 | int mlx5e_tc_num_filters(struct mlx5e_priv *priv, int flags) |
01252a27 | 3609 | { |
d9ee0491 | 3610 | struct rhashtable *tc_ht = get_tc_ht(priv, flags); |
01252a27 OG |
3611 | |
3612 | return atomic_read(&tc_ht->nelems); | |
3613 | } | |
04de7dda RD |
3614 | |
3615 | void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw) | |
3616 | { | |
3617 | struct mlx5e_tc_flow *flow, *tmp; | |
3618 | ||
3619 | list_for_each_entry_safe(flow, tmp, &esw->offloads.peer_flows, peer) | |
3620 | __mlx5e_tc_del_fdb_peer_flow(flow); | |
3621 | } | |
b4a23329 RD |
3622 | |
3623 | void mlx5e_tc_reoffload_flows_work(struct work_struct *work) | |
3624 | { | |
3625 | struct mlx5_rep_uplink_priv *rpriv = | |
3626 | container_of(work, struct mlx5_rep_uplink_priv, | |
3627 | reoffload_flows_work); | |
3628 | struct mlx5e_tc_flow *flow, *tmp; | |
3629 | ||
3630 | rtnl_lock(); | |
3631 | list_for_each_entry_safe(flow, tmp, &rpriv->unready_flows, unready) { | |
3632 | if (!mlx5e_tc_add_fdb_flow(flow->priv, flow, NULL)) | |
3633 | remove_unready_flow(flow); | |
3634 | } | |
3635 | rtnl_unlock(); | |
3636 | } |