1 /*
2 * Copyright (c) 2015, 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
33 #include <linux/list.h>
34 #include <linux/ip.h>
35 #include <linux/ipv6.h>
36 #include <linux/tcp.h>
37 #include <linux/mlx5/fs.h>
38 #include <linux/mlx5/mpfs.h>
39 #include "en.h"
40 #include "en_rep.h"
41 #include "lib/mpfs.h"
42 #include "en/ptp.h"
43
44 static int mlx5e_add_l2_flow_rule(struct mlx5e_priv *priv,
45 struct mlx5e_l2_rule *ai, int type);
46 static void mlx5e_del_l2_flow_rule(struct mlx5e_priv *priv,
47 struct mlx5e_l2_rule *ai);
48
49 enum {
50 MLX5E_FULLMATCH = 0,
51 MLX5E_ALLMULTI = 1,
52 };
53
54 enum {
55 MLX5E_UC = 0,
56 MLX5E_MC_IPV4 = 1,
57 MLX5E_MC_IPV6 = 2,
58 MLX5E_MC_OTHER = 3,
59 };
60
61 enum {
62 MLX5E_ACTION_NONE = 0,
63 MLX5E_ACTION_ADD = 1,
64 MLX5E_ACTION_DEL = 2,
65 };
66
67 struct mlx5e_l2_hash_node {
68 struct hlist_node hlist;
69 u8 action;
70 struct mlx5e_l2_rule ai;
71 bool mpfs;
72 };
73
mlx5e_hash_l2(u8 * addr)74 static inline int mlx5e_hash_l2(u8 *addr)
75 {
76 return addr[5];
77 }
78
mlx5e_add_l2_to_hash(struct hlist_head * hash,u8 * addr)79 static void mlx5e_add_l2_to_hash(struct hlist_head *hash, u8 *addr)
80 {
81 struct mlx5e_l2_hash_node *hn;
82 int ix = mlx5e_hash_l2(addr);
83 int found = 0;
84
85 hlist_for_each_entry(hn, &hash[ix], hlist)
86 if (ether_addr_equal_64bits(hn->ai.addr, addr)) {
87 found = 1;
88 break;
89 }
90
91 if (found) {
92 hn->action = MLX5E_ACTION_NONE;
93 return;
94 }
95
96 hn = kzalloc(sizeof(*hn), GFP_ATOMIC);
97 if (!hn)
98 return;
99
100 ether_addr_copy(hn->ai.addr, addr);
101 hn->action = MLX5E_ACTION_ADD;
102
103 hlist_add_head(&hn->hlist, &hash[ix]);
104 }
105
mlx5e_del_l2_from_hash(struct mlx5e_l2_hash_node * hn)106 static void mlx5e_del_l2_from_hash(struct mlx5e_l2_hash_node *hn)
107 {
108 hlist_del(&hn->hlist);
109 kfree(hn);
110 }
111
112 struct mlx5e_vlan_table {
113 struct mlx5e_flow_table ft;
114 DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
115 DECLARE_BITMAP(active_svlans, VLAN_N_VID);
116 struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
117 struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
118 struct mlx5_flow_handle *untagged_rule;
119 struct mlx5_flow_handle *any_cvlan_rule;
120 struct mlx5_flow_handle *any_svlan_rule;
121 struct mlx5_flow_handle *trap_rule;
122 bool cvlan_filter_disabled;
123 };
124
mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table * vlan)125 unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan)
126 {
127 return vlan->active_svlans;
128 }
129
mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table * vlan)130 struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan)
131 {
132 return vlan->ft.t;
133 }
134
mlx5e_vport_context_update_vlans(struct mlx5e_priv * priv)135 static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
136 {
137 struct net_device *ndev = priv->netdev;
138 int max_list_size;
139 int list_size;
140 u16 *vlans;
141 int vlan;
142 int err;
143 int i;
144
145 list_size = 0;
146 for_each_set_bit(vlan, priv->fs.vlan->active_cvlans, VLAN_N_VID)
147 list_size++;
148
149 max_list_size = 1 << MLX5_CAP_GEN(priv->mdev, log_max_vlan_list);
150
151 if (list_size > max_list_size) {
152 netdev_warn(ndev,
153 "netdev vlans list size (%d) > (%d) max vport list size, some vlans will be dropped\n",
154 list_size, max_list_size);
155 list_size = max_list_size;
156 }
157
158 vlans = kcalloc(list_size, sizeof(*vlans), GFP_KERNEL);
159 if (!vlans)
160 return -ENOMEM;
161
162 i = 0;
163 for_each_set_bit(vlan, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
164 if (i >= list_size)
165 break;
166 vlans[i++] = vlan;
167 }
168
169 err = mlx5_modify_nic_vport_vlans(priv->mdev, vlans, list_size);
170 if (err)
171 netdev_err(ndev, "Failed to modify vport vlans list err(%d)\n",
172 err);
173
174 kfree(vlans);
175 return err;
176 }
177
178 enum mlx5e_vlan_rule_type {
179 MLX5E_VLAN_RULE_TYPE_UNTAGGED,
180 MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID,
181 MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID,
182 MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID,
183 MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID,
184 };
185
__mlx5e_add_vlan_rule(struct mlx5e_priv * priv,enum mlx5e_vlan_rule_type rule_type,u16 vid,struct mlx5_flow_spec * spec)186 static int __mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
187 enum mlx5e_vlan_rule_type rule_type,
188 u16 vid, struct mlx5_flow_spec *spec)
189 {
190 struct mlx5_flow_table *ft = priv->fs.vlan->ft.t;
191 struct mlx5_flow_destination dest = {};
192 struct mlx5_flow_handle **rule_p;
193 MLX5_DECLARE_FLOW_ACT(flow_act);
194 int err = 0;
195
196 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
197 dest.ft = priv->fs.l2.ft.t;
198
199 spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
200
201 switch (rule_type) {
202 case MLX5E_VLAN_RULE_TYPE_UNTAGGED:
203 /* cvlan_tag enabled in match criteria and
204 * disabled in match value means both S & C tags
205 * don't exist (untagged of both)
206 */
207 rule_p = &priv->fs.vlan->untagged_rule;
208 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
209 outer_headers.cvlan_tag);
210 break;
211 case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
212 rule_p = &priv->fs.vlan->any_cvlan_rule;
213 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
214 outer_headers.cvlan_tag);
215 MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
216 break;
217 case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
218 rule_p = &priv->fs.vlan->any_svlan_rule;
219 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
220 outer_headers.svlan_tag);
221 MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
222 break;
223 case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
224 rule_p = &priv->fs.vlan->active_svlans_rule[vid];
225 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
226 outer_headers.svlan_tag);
227 MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
228 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
229 outer_headers.first_vid);
230 MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid,
231 vid);
232 break;
233 default: /* MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID */
234 rule_p = &priv->fs.vlan->active_cvlans_rule[vid];
235 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
236 outer_headers.cvlan_tag);
237 MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
238 MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
239 outer_headers.first_vid);
240 MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid,
241 vid);
242 break;
243 }
244
245 if (WARN_ONCE(*rule_p, "VLAN rule already exists type %d", rule_type))
246 return 0;
247
248 *rule_p = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1);
249
250 if (IS_ERR(*rule_p)) {
251 err = PTR_ERR(*rule_p);
252 *rule_p = NULL;
253 netdev_err(priv->netdev, "%s: add rule failed\n", __func__);
254 }
255
256 return err;
257 }
258
mlx5e_add_vlan_rule(struct mlx5e_priv * priv,enum mlx5e_vlan_rule_type rule_type,u16 vid)259 static int mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
260 enum mlx5e_vlan_rule_type rule_type, u16 vid)
261 {
262 struct mlx5_flow_spec *spec;
263 int err = 0;
264
265 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
266 if (!spec)
267 return -ENOMEM;
268
269 if (rule_type == MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID)
270 mlx5e_vport_context_update_vlans(priv);
271
272 err = __mlx5e_add_vlan_rule(priv, rule_type, vid, spec);
273
274 kvfree(spec);
275
276 return err;
277 }
278
mlx5e_del_vlan_rule(struct mlx5e_priv * priv,enum mlx5e_vlan_rule_type rule_type,u16 vid)279 static void mlx5e_del_vlan_rule(struct mlx5e_priv *priv,
280 enum mlx5e_vlan_rule_type rule_type, u16 vid)
281 {
282 switch (rule_type) {
283 case MLX5E_VLAN_RULE_TYPE_UNTAGGED:
284 if (priv->fs.vlan->untagged_rule) {
285 mlx5_del_flow_rules(priv->fs.vlan->untagged_rule);
286 priv->fs.vlan->untagged_rule = NULL;
287 }
288 break;
289 case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
290 if (priv->fs.vlan->any_cvlan_rule) {
291 mlx5_del_flow_rules(priv->fs.vlan->any_cvlan_rule);
292 priv->fs.vlan->any_cvlan_rule = NULL;
293 }
294 break;
295 case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
296 if (priv->fs.vlan->any_svlan_rule) {
297 mlx5_del_flow_rules(priv->fs.vlan->any_svlan_rule);
298 priv->fs.vlan->any_svlan_rule = NULL;
299 }
300 break;
301 case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
302 if (priv->fs.vlan->active_svlans_rule[vid]) {
303 mlx5_del_flow_rules(priv->fs.vlan->active_svlans_rule[vid]);
304 priv->fs.vlan->active_svlans_rule[vid] = NULL;
305 }
306 break;
307 case MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID:
308 if (priv->fs.vlan->active_cvlans_rule[vid]) {
309 mlx5_del_flow_rules(priv->fs.vlan->active_cvlans_rule[vid]);
310 priv->fs.vlan->active_cvlans_rule[vid] = NULL;
311 }
312 mlx5e_vport_context_update_vlans(priv);
313 break;
314 }
315 }
316
mlx5e_del_any_vid_rules(struct mlx5e_priv * priv)317 static void mlx5e_del_any_vid_rules(struct mlx5e_priv *priv)
318 {
319 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
320 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID, 0);
321 }
322
mlx5e_add_any_vid_rules(struct mlx5e_priv * priv)323 static int mlx5e_add_any_vid_rules(struct mlx5e_priv *priv)
324 {
325 int err;
326
327 err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
328 if (err)
329 return err;
330
331 return mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID, 0);
332 }
333
334 static struct mlx5_flow_handle *
mlx5e_add_trap_rule(struct mlx5_flow_table * ft,int trap_id,int tir_num)335 mlx5e_add_trap_rule(struct mlx5_flow_table *ft, int trap_id, int tir_num)
336 {
337 struct mlx5_flow_destination dest = {};
338 MLX5_DECLARE_FLOW_ACT(flow_act);
339 struct mlx5_flow_handle *rule;
340 struct mlx5_flow_spec *spec;
341
342 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
343 if (!spec)
344 return ERR_PTR(-ENOMEM);
345 spec->flow_context.flags |= FLOW_CONTEXT_HAS_TAG;
346 spec->flow_context.flow_tag = trap_id;
347 dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
348 dest.tir_num = tir_num;
349
350 rule = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1);
351 kvfree(spec);
352 return rule;
353 }
354
mlx5e_add_vlan_trap(struct mlx5e_priv * priv,int trap_id,int tir_num)355 int mlx5e_add_vlan_trap(struct mlx5e_priv *priv, int trap_id, int tir_num)
356 {
357 struct mlx5_flow_table *ft = priv->fs.vlan->ft.t;
358 struct mlx5_flow_handle *rule;
359 int err;
360
361 rule = mlx5e_add_trap_rule(ft, trap_id, tir_num);
362 if (IS_ERR(rule)) {
363 err = PTR_ERR(rule);
364 priv->fs.vlan->trap_rule = NULL;
365 netdev_err(priv->netdev, "%s: add VLAN trap rule failed, err %d\n",
366 __func__, err);
367 return err;
368 }
369 priv->fs.vlan->trap_rule = rule;
370 return 0;
371 }
372
mlx5e_remove_vlan_trap(struct mlx5e_priv * priv)373 void mlx5e_remove_vlan_trap(struct mlx5e_priv *priv)
374 {
375 if (priv->fs.vlan->trap_rule) {
376 mlx5_del_flow_rules(priv->fs.vlan->trap_rule);
377 priv->fs.vlan->trap_rule = NULL;
378 }
379 }
380
mlx5e_add_mac_trap(struct mlx5e_priv * priv,int trap_id,int tir_num)381 int mlx5e_add_mac_trap(struct mlx5e_priv *priv, int trap_id, int tir_num)
382 {
383 struct mlx5_flow_table *ft = priv->fs.l2.ft.t;
384 struct mlx5_flow_handle *rule;
385 int err;
386
387 rule = mlx5e_add_trap_rule(ft, trap_id, tir_num);
388 if (IS_ERR(rule)) {
389 err = PTR_ERR(rule);
390 priv->fs.l2.trap_rule = NULL;
391 netdev_err(priv->netdev, "%s: add MAC trap rule failed, err %d\n",
392 __func__, err);
393 return err;
394 }
395 priv->fs.l2.trap_rule = rule;
396 return 0;
397 }
398
mlx5e_remove_mac_trap(struct mlx5e_priv * priv)399 void mlx5e_remove_mac_trap(struct mlx5e_priv *priv)
400 {
401 if (priv->fs.l2.trap_rule) {
402 mlx5_del_flow_rules(priv->fs.l2.trap_rule);
403 priv->fs.l2.trap_rule = NULL;
404 }
405 }
406
mlx5e_enable_cvlan_filter(struct mlx5e_priv * priv)407 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv)
408 {
409 if (!priv->fs.vlan->cvlan_filter_disabled)
410 return;
411
412 priv->fs.vlan->cvlan_filter_disabled = false;
413 if (priv->netdev->flags & IFF_PROMISC)
414 return;
415 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
416 }
417
mlx5e_disable_cvlan_filter(struct mlx5e_priv * priv)418 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv)
419 {
420 if (priv->fs.vlan->cvlan_filter_disabled)
421 return;
422
423 priv->fs.vlan->cvlan_filter_disabled = true;
424 if (priv->netdev->flags & IFF_PROMISC)
425 return;
426 mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
427 }
428
mlx5e_vlan_rx_add_cvid(struct mlx5e_priv * priv,u16 vid)429 static int mlx5e_vlan_rx_add_cvid(struct mlx5e_priv *priv, u16 vid)
430 {
431 int err;
432
433 set_bit(vid, priv->fs.vlan->active_cvlans);
434
435 err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
436 if (err)
437 clear_bit(vid, priv->fs.vlan->active_cvlans);
438
439 return err;
440 }
441
mlx5e_vlan_rx_add_svid(struct mlx5e_priv * priv,u16 vid)442 static int mlx5e_vlan_rx_add_svid(struct mlx5e_priv *priv, u16 vid)
443 {
444 struct net_device *netdev = priv->netdev;
445 int err;
446
447 set_bit(vid, priv->fs.vlan->active_svlans);
448
449 err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
450 if (err) {
451 clear_bit(vid, priv->fs.vlan->active_svlans);
452 return err;
453 }
454
455 /* Need to fix some features.. */
456 netdev_update_features(netdev);
457 return err;
458 }
459
mlx5e_vlan_rx_add_vid(struct net_device * dev,__be16 proto,u16 vid)460 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
461 {
462 struct mlx5e_priv *priv = netdev_priv(dev);
463
464 if (mlx5e_is_uplink_rep(priv))
465 return 0; /* no vlan table for uplink rep */
466
467 if (be16_to_cpu(proto) == ETH_P_8021Q)
468 return mlx5e_vlan_rx_add_cvid(priv, vid);
469 else if (be16_to_cpu(proto) == ETH_P_8021AD)
470 return mlx5e_vlan_rx_add_svid(priv, vid);
471
472 return -EOPNOTSUPP;
473 }
474
mlx5e_vlan_rx_kill_vid(struct net_device * dev,__be16 proto,u16 vid)475 int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
476 {
477 struct mlx5e_priv *priv = netdev_priv(dev);
478
479 if (mlx5e_is_uplink_rep(priv))
480 return 0; /* no vlan table for uplink rep */
481
482 if (be16_to_cpu(proto) == ETH_P_8021Q) {
483 clear_bit(vid, priv->fs.vlan->active_cvlans);
484 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
485 } else if (be16_to_cpu(proto) == ETH_P_8021AD) {
486 clear_bit(vid, priv->fs.vlan->active_svlans);
487 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
488 netdev_update_features(dev);
489 }
490
491 return 0;
492 }
493
mlx5e_add_vlan_rules(struct mlx5e_priv * priv)494 static void mlx5e_add_vlan_rules(struct mlx5e_priv *priv)
495 {
496 int i;
497
498 mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
499
500 for_each_set_bit(i, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
501 mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
502 }
503
504 for_each_set_bit(i, priv->fs.vlan->active_svlans, VLAN_N_VID)
505 mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
506
507 if (priv->fs.vlan->cvlan_filter_disabled)
508 mlx5e_add_any_vid_rules(priv);
509 }
510
mlx5e_del_vlan_rules(struct mlx5e_priv * priv)511 static void mlx5e_del_vlan_rules(struct mlx5e_priv *priv)
512 {
513 int i;
514
515 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
516
517 for_each_set_bit(i, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
518 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
519 }
520
521 for_each_set_bit(i, priv->fs.vlan->active_svlans, VLAN_N_VID)
522 mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
523
524 WARN_ON_ONCE(!(test_bit(MLX5E_STATE_DESTROYING, &priv->state)));
525
526 mlx5e_remove_vlan_trap(priv);
527
528 /* must be called after DESTROY bit is set and
529 * set_rx_mode is called and flushed
530 */
531 if (priv->fs.vlan->cvlan_filter_disabled)
532 mlx5e_del_any_vid_rules(priv);
533 }
534
535 #define mlx5e_for_each_hash_node(hn, tmp, hash, i) \
536 for (i = 0; i < MLX5E_L2_ADDR_HASH_SIZE; i++) \
537 hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist)
538
mlx5e_execute_l2_action(struct mlx5e_priv * priv,struct mlx5e_l2_hash_node * hn)539 static void mlx5e_execute_l2_action(struct mlx5e_priv *priv,
540 struct mlx5e_l2_hash_node *hn)
541 {
542 u8 action = hn->action;
543 u8 mac_addr[ETH_ALEN];
544 int l2_err = 0;
545
546 ether_addr_copy(mac_addr, hn->ai.addr);
547
548 switch (action) {
549 case MLX5E_ACTION_ADD:
550 mlx5e_add_l2_flow_rule(priv, &hn->ai, MLX5E_FULLMATCH);
551 if (!is_multicast_ether_addr(mac_addr)) {
552 l2_err = mlx5_mpfs_add_mac(priv->mdev, mac_addr);
553 hn->mpfs = !l2_err;
554 }
555 hn->action = MLX5E_ACTION_NONE;
556 break;
557
558 case MLX5E_ACTION_DEL:
559 if (!is_multicast_ether_addr(mac_addr) && hn->mpfs)
560 l2_err = mlx5_mpfs_del_mac(priv->mdev, mac_addr);
561 mlx5e_del_l2_flow_rule(priv, &hn->ai);
562 mlx5e_del_l2_from_hash(hn);
563 break;
564 }
565
566 if (l2_err)
567 netdev_warn(priv->netdev, "MPFS, failed to %s mac %pM, err(%d)\n",
568 action == MLX5E_ACTION_ADD ? "add" : "del", mac_addr, l2_err);
569 }
570
mlx5e_sync_netdev_addr(struct mlx5e_priv * priv)571 static void mlx5e_sync_netdev_addr(struct mlx5e_priv *priv)
572 {
573 struct net_device *netdev = priv->netdev;
574 struct netdev_hw_addr *ha;
575
576 netif_addr_lock_bh(netdev);
577
578 mlx5e_add_l2_to_hash(priv->fs.l2.netdev_uc,
579 priv->netdev->dev_addr);
580
581 netdev_for_each_uc_addr(ha, netdev)
582 mlx5e_add_l2_to_hash(priv->fs.l2.netdev_uc, ha->addr);
583
584 netdev_for_each_mc_addr(ha, netdev)
585 mlx5e_add_l2_to_hash(priv->fs.l2.netdev_mc, ha->addr);
586
587 netif_addr_unlock_bh(netdev);
588 }
589
mlx5e_fill_addr_array(struct mlx5e_priv * priv,int list_type,u8 addr_array[][ETH_ALEN],int size)590 static void mlx5e_fill_addr_array(struct mlx5e_priv *priv, int list_type,
591 u8 addr_array[][ETH_ALEN], int size)
592 {
593 bool is_uc = (list_type == MLX5_NVPRT_LIST_TYPE_UC);
594 struct net_device *ndev = priv->netdev;
595 struct mlx5e_l2_hash_node *hn;
596 struct hlist_head *addr_list;
597 struct hlist_node *tmp;
598 int i = 0;
599 int hi;
600
601 addr_list = is_uc ? priv->fs.l2.netdev_uc : priv->fs.l2.netdev_mc;
602
603 if (is_uc) /* Make sure our own address is pushed first */
604 ether_addr_copy(addr_array[i++], ndev->dev_addr);
605 else if (priv->fs.l2.broadcast_enabled)
606 ether_addr_copy(addr_array[i++], ndev->broadcast);
607
608 mlx5e_for_each_hash_node(hn, tmp, addr_list, hi) {
609 if (ether_addr_equal(ndev->dev_addr, hn->ai.addr))
610 continue;
611 if (i >= size)
612 break;
613 ether_addr_copy(addr_array[i++], hn->ai.addr);
614 }
615 }
616
mlx5e_vport_context_update_addr_list(struct mlx5e_priv * priv,int list_type)617 static void mlx5e_vport_context_update_addr_list(struct mlx5e_priv *priv,
618 int list_type)
619 {
620 bool is_uc = (list_type == MLX5_NVPRT_LIST_TYPE_UC);
621 struct mlx5e_l2_hash_node *hn;
622 u8 (*addr_array)[ETH_ALEN] = NULL;
623 struct hlist_head *addr_list;
624 struct hlist_node *tmp;
625 int max_size;
626 int size;
627 int err;
628 int hi;
629
630 size = is_uc ? 0 : (priv->fs.l2.broadcast_enabled ? 1 : 0);
631 max_size = is_uc ?
632 1 << MLX5_CAP_GEN(priv->mdev, log_max_current_uc_list) :
633 1 << MLX5_CAP_GEN(priv->mdev, log_max_current_mc_list);
634
635 addr_list = is_uc ? priv->fs.l2.netdev_uc : priv->fs.l2.netdev_mc;
636 mlx5e_for_each_hash_node(hn, tmp, addr_list, hi)
637 size++;
638
639 if (size > max_size) {
640 netdev_warn(priv->netdev,
641 "netdev %s list size (%d) > (%d) max vport list size, some addresses will be dropped\n",
642 is_uc ? "UC" : "MC", size, max_size);
643 size = max_size;
644 }
645
646 if (size) {
647 addr_array = kcalloc(size, ETH_ALEN, GFP_KERNEL);
648 if (!addr_array) {
649 err = -ENOMEM;
650 goto out;
651 }
652 mlx5e_fill_addr_array(priv, list_type, addr_array, size);
653 }
654
655 err = mlx5_modify_nic_vport_mac_list(priv->mdev, list_type, addr_array, size);
656 out:
657 if (err)
658 netdev_err(priv->netdev,
659 "Failed to modify vport %s list err(%d)\n",
660 is_uc ? "UC" : "MC", err);
661 kfree(addr_array);
662 }
663
mlx5e_vport_context_update(struct mlx5e_priv * priv)664 static void mlx5e_vport_context_update(struct mlx5e_priv *priv)
665 {
666 struct mlx5e_l2_table *ea = &priv->fs.l2;
667
668 mlx5e_vport_context_update_addr_list(priv, MLX5_NVPRT_LIST_TYPE_UC);
669 mlx5e_vport_context_update_addr_list(priv, MLX5_NVPRT_LIST_TYPE_MC);
670 mlx5_modify_nic_vport_promisc(priv->mdev, 0,
671 ea->allmulti_enabled,
672 ea->promisc_enabled);
673 }
674
mlx5e_apply_netdev_addr(struct mlx5e_priv * priv)675 static void mlx5e_apply_netdev_addr(struct mlx5e_priv *priv)
676 {
677 struct mlx5e_l2_hash_node *hn;
678 struct hlist_node *tmp;
679 int i;
680
681 mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_uc, i)
682 mlx5e_execute_l2_action(priv, hn);
683
684 mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_mc, i)
685 mlx5e_execute_l2_action(priv, hn);
686 }
687
mlx5e_handle_netdev_addr(struct mlx5e_priv * priv)688 static void mlx5e_handle_netdev_addr(struct mlx5e_priv *priv)
689 {
690 struct mlx5e_l2_hash_node *hn;
691 struct hlist_node *tmp;
692 int i;
693
694 mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_uc, i)
695 hn->action = MLX5E_ACTION_DEL;
696 mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_mc, i)
697 hn->action = MLX5E_ACTION_DEL;
698
699 if (!test_bit(MLX5E_STATE_DESTROYING, &priv->state))
700 mlx5e_sync_netdev_addr(priv);
701
702 mlx5e_apply_netdev_addr(priv);
703 }
704
705 #define MLX5E_PROMISC_GROUP0_SIZE BIT(0)
706 #define MLX5E_PROMISC_TABLE_SIZE MLX5E_PROMISC_GROUP0_SIZE
707
mlx5e_add_promisc_rule(struct mlx5e_priv * priv)708 static int mlx5e_add_promisc_rule(struct mlx5e_priv *priv)
709 {
710 struct mlx5_flow_table *ft = priv->fs.promisc.ft.t;
711 struct mlx5_flow_destination dest = {};
712 struct mlx5_flow_handle **rule_p;
713 MLX5_DECLARE_FLOW_ACT(flow_act);
714 struct mlx5_flow_spec *spec;
715 int err = 0;
716
717 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
718 if (!spec)
719 return -ENOMEM;
720 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
721 dest.ft = mlx5_get_ttc_flow_table(priv->fs.ttc);
722
723 rule_p = &priv->fs.promisc.rule;
724 *rule_p = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1);
725 if (IS_ERR(*rule_p)) {
726 err = PTR_ERR(*rule_p);
727 *rule_p = NULL;
728 netdev_err(priv->netdev, "%s: add promiscuous rule failed\n", __func__);
729 }
730 kvfree(spec);
731 return err;
732 }
733
mlx5e_create_promisc_table(struct mlx5e_priv * priv)734 static int mlx5e_create_promisc_table(struct mlx5e_priv *priv)
735 {
736 struct mlx5e_flow_table *ft = &priv->fs.promisc.ft;
737 struct mlx5_flow_table_attr ft_attr = {};
738 int err;
739
740 ft_attr.max_fte = MLX5E_PROMISC_TABLE_SIZE;
741 ft_attr.autogroup.max_num_groups = 1;
742 ft_attr.level = MLX5E_PROMISC_FT_LEVEL;
743 ft_attr.prio = MLX5E_NIC_PRIO;
744
745 ft->t = mlx5_create_auto_grouped_flow_table(priv->fs.ns, &ft_attr);
746 if (IS_ERR(ft->t)) {
747 err = PTR_ERR(ft->t);
748 netdev_err(priv->netdev, "fail to create promisc table err=%d\n", err);
749 return err;
750 }
751
752 err = mlx5e_add_promisc_rule(priv);
753 if (err)
754 goto err_destroy_promisc_table;
755
756 return 0;
757
758 err_destroy_promisc_table:
759 mlx5_destroy_flow_table(ft->t);
760 ft->t = NULL;
761
762 return err;
763 }
764
mlx5e_del_promisc_rule(struct mlx5e_priv * priv)765 static void mlx5e_del_promisc_rule(struct mlx5e_priv *priv)
766 {
767 if (WARN(!priv->fs.promisc.rule, "Trying to remove non-existing promiscuous rule"))
768 return;
769 mlx5_del_flow_rules(priv->fs.promisc.rule);
770 priv->fs.promisc.rule = NULL;
771 }
772
mlx5e_destroy_promisc_table(struct mlx5e_priv * priv)773 static void mlx5e_destroy_promisc_table(struct mlx5e_priv *priv)
774 {
775 if (WARN(!priv->fs.promisc.ft.t, "Trying to remove non-existing promiscuous table"))
776 return;
777 mlx5e_del_promisc_rule(priv);
778 mlx5_destroy_flow_table(priv->fs.promisc.ft.t);
779 priv->fs.promisc.ft.t = NULL;
780 }
781
mlx5e_set_rx_mode_work(struct work_struct * work)782 void mlx5e_set_rx_mode_work(struct work_struct *work)
783 {
784 struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
785 set_rx_mode_work);
786
787 struct mlx5e_l2_table *ea = &priv->fs.l2;
788 struct net_device *ndev = priv->netdev;
789
790 bool rx_mode_enable = !test_bit(MLX5E_STATE_DESTROYING, &priv->state);
791 bool promisc_enabled = rx_mode_enable && (ndev->flags & IFF_PROMISC);
792 bool allmulti_enabled = rx_mode_enable && (ndev->flags & IFF_ALLMULTI);
793 bool broadcast_enabled = rx_mode_enable;
794
795 bool enable_promisc = !ea->promisc_enabled && promisc_enabled;
796 bool disable_promisc = ea->promisc_enabled && !promisc_enabled;
797 bool enable_allmulti = !ea->allmulti_enabled && allmulti_enabled;
798 bool disable_allmulti = ea->allmulti_enabled && !allmulti_enabled;
799 bool enable_broadcast = !ea->broadcast_enabled && broadcast_enabled;
800 bool disable_broadcast = ea->broadcast_enabled && !broadcast_enabled;
801 int err;
802
803 if (enable_promisc) {
804 err = mlx5e_create_promisc_table(priv);
805 if (err)
806 enable_promisc = false;
807 if (!priv->channels.params.vlan_strip_disable && !err)
808 netdev_warn_once(ndev,
809 "S-tagged traffic will be dropped while C-tag vlan stripping is enabled\n");
810 }
811 if (enable_allmulti)
812 mlx5e_add_l2_flow_rule(priv, &ea->allmulti, MLX5E_ALLMULTI);
813 if (enable_broadcast)
814 mlx5e_add_l2_flow_rule(priv, &ea->broadcast, MLX5E_FULLMATCH);
815
816 mlx5e_handle_netdev_addr(priv);
817
818 if (disable_broadcast)
819 mlx5e_del_l2_flow_rule(priv, &ea->broadcast);
820 if (disable_allmulti)
821 mlx5e_del_l2_flow_rule(priv, &ea->allmulti);
822 if (disable_promisc)
823 mlx5e_destroy_promisc_table(priv);
824
825 ea->promisc_enabled = promisc_enabled;
826 ea->allmulti_enabled = allmulti_enabled;
827 ea->broadcast_enabled = broadcast_enabled;
828
829 mlx5e_vport_context_update(priv);
830 }
831
mlx5e_destroy_groups(struct mlx5e_flow_table * ft)832 static void mlx5e_destroy_groups(struct mlx5e_flow_table *ft)
833 {
834 int i;
835
836 for (i = ft->num_groups - 1; i >= 0; i--) {
837 if (!IS_ERR_OR_NULL(ft->g[i]))
838 mlx5_destroy_flow_group(ft->g[i]);
839 ft->g[i] = NULL;
840 }
841 ft->num_groups = 0;
842 }
843
mlx5e_init_l2_addr(struct mlx5e_priv * priv)844 void mlx5e_init_l2_addr(struct mlx5e_priv *priv)
845 {
846 ether_addr_copy(priv->fs.l2.broadcast.addr, priv->netdev->broadcast);
847 }
848
mlx5e_destroy_flow_table(struct mlx5e_flow_table * ft)849 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft)
850 {
851 mlx5e_destroy_groups(ft);
852 kfree(ft->g);
853 mlx5_destroy_flow_table(ft->t);
854 ft->t = NULL;
855 }
856
mlx5e_set_inner_ttc_params(struct mlx5e_priv * priv,struct ttc_params * ttc_params)857 static void mlx5e_set_inner_ttc_params(struct mlx5e_priv *priv,
858 struct ttc_params *ttc_params)
859 {
860 struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr;
861 int tt;
862
863 memset(ttc_params, 0, sizeof(*ttc_params));
864 ttc_params->ns = mlx5_get_flow_namespace(priv->mdev,
865 MLX5_FLOW_NAMESPACE_KERNEL);
866 ft_attr->level = MLX5E_INNER_TTC_FT_LEVEL;
867 ft_attr->prio = MLX5E_NIC_PRIO;
868
869 for (tt = 0; tt < MLX5_NUM_TT; tt++) {
870 ttc_params->dests[tt].type = MLX5_FLOW_DESTINATION_TYPE_TIR;
871 ttc_params->dests[tt].tir_num =
872 tt == MLX5_TT_ANY ?
873 mlx5e_rx_res_get_tirn_direct(priv->rx_res, 0) :
874 mlx5e_rx_res_get_tirn_rss_inner(priv->rx_res,
875 tt);
876 }
877 }
878
mlx5e_set_ttc_params(struct mlx5e_priv * priv,struct ttc_params * ttc_params,bool tunnel)879 void mlx5e_set_ttc_params(struct mlx5e_priv *priv,
880 struct ttc_params *ttc_params, bool tunnel)
881
882 {
883 struct mlx5_flow_table_attr *ft_attr = &ttc_params->ft_attr;
884 int tt;
885
886 memset(ttc_params, 0, sizeof(*ttc_params));
887 ttc_params->ns = mlx5_get_flow_namespace(priv->mdev,
888 MLX5_FLOW_NAMESPACE_KERNEL);
889 ft_attr->level = MLX5E_TTC_FT_LEVEL;
890 ft_attr->prio = MLX5E_NIC_PRIO;
891
892 for (tt = 0; tt < MLX5_NUM_TT; tt++) {
893 ttc_params->dests[tt].type = MLX5_FLOW_DESTINATION_TYPE_TIR;
894 ttc_params->dests[tt].tir_num =
895 tt == MLX5_TT_ANY ?
896 mlx5e_rx_res_get_tirn_direct(priv->rx_res, 0) :
897 mlx5e_rx_res_get_tirn_rss(priv->rx_res, tt);
898 }
899
900 ttc_params->inner_ttc = tunnel;
901 if (!tunnel || !mlx5_tunnel_inner_ft_supported(priv->mdev))
902 return;
903
904 for (tt = 0; tt < MLX5_NUM_TUNNEL_TT; tt++) {
905 ttc_params->tunnel_dests[tt].type =
906 MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
907 ttc_params->tunnel_dests[tt].ft =
908 mlx5_get_ttc_flow_table(priv->fs.inner_ttc);
909 }
910 }
911
mlx5e_del_l2_flow_rule(struct mlx5e_priv * priv,struct mlx5e_l2_rule * ai)912 static void mlx5e_del_l2_flow_rule(struct mlx5e_priv *priv,
913 struct mlx5e_l2_rule *ai)
914 {
915 if (!IS_ERR_OR_NULL(ai->rule)) {
916 mlx5_del_flow_rules(ai->rule);
917 ai->rule = NULL;
918 }
919 }
920
mlx5e_add_l2_flow_rule(struct mlx5e_priv * priv,struct mlx5e_l2_rule * ai,int type)921 static int mlx5e_add_l2_flow_rule(struct mlx5e_priv *priv,
922 struct mlx5e_l2_rule *ai, int type)
923 {
924 struct mlx5_flow_table *ft = priv->fs.l2.ft.t;
925 struct mlx5_flow_destination dest = {};
926 MLX5_DECLARE_FLOW_ACT(flow_act);
927 struct mlx5_flow_spec *spec;
928 int err = 0;
929 u8 *mc_dmac;
930 u8 *mv_dmac;
931
932 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
933 if (!spec)
934 return -ENOMEM;
935
936 mc_dmac = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
937 outer_headers.dmac_47_16);
938 mv_dmac = MLX5_ADDR_OF(fte_match_param, spec->match_value,
939 outer_headers.dmac_47_16);
940
941 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
942 dest.ft = mlx5_get_ttc_flow_table(priv->fs.ttc);
943
944 switch (type) {
945 case MLX5E_FULLMATCH:
946 spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
947 eth_broadcast_addr(mc_dmac);
948 ether_addr_copy(mv_dmac, ai->addr);
949 break;
950
951 case MLX5E_ALLMULTI:
952 spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
953 mc_dmac[0] = 0x01;
954 mv_dmac[0] = 0x01;
955 break;
956 }
957
958 ai->rule = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1);
959 if (IS_ERR(ai->rule)) {
960 netdev_err(priv->netdev, "%s: add l2 rule(mac:%pM) failed\n",
961 __func__, mv_dmac);
962 err = PTR_ERR(ai->rule);
963 ai->rule = NULL;
964 }
965
966 kvfree(spec);
967
968 return err;
969 }
970
971 #define MLX5E_NUM_L2_GROUPS 3
972 #define MLX5E_L2_GROUP1_SIZE BIT(15)
973 #define MLX5E_L2_GROUP2_SIZE BIT(0)
974 #define MLX5E_L2_GROUP_TRAP_SIZE BIT(0) /* must be last */
975 #define MLX5E_L2_TABLE_SIZE (MLX5E_L2_GROUP1_SIZE +\
976 MLX5E_L2_GROUP2_SIZE +\
977 MLX5E_L2_GROUP_TRAP_SIZE)
mlx5e_create_l2_table_groups(struct mlx5e_l2_table * l2_table)978 static int mlx5e_create_l2_table_groups(struct mlx5e_l2_table *l2_table)
979 {
980 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
981 struct mlx5e_flow_table *ft = &l2_table->ft;
982 int ix = 0;
983 u8 *mc_dmac;
984 u32 *in;
985 int err;
986 u8 *mc;
987
988 ft->g = kcalloc(MLX5E_NUM_L2_GROUPS, sizeof(*ft->g), GFP_KERNEL);
989 if (!ft->g)
990 return -ENOMEM;
991 in = kvzalloc(inlen, GFP_KERNEL);
992 if (!in) {
993 kfree(ft->g);
994 return -ENOMEM;
995 }
996
997 mc = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
998 mc_dmac = MLX5_ADDR_OF(fte_match_param, mc,
999 outer_headers.dmac_47_16);
1000 /* Flow Group for full match */
1001 eth_broadcast_addr(mc_dmac);
1002 MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
1003 MLX5_SET_CFG(in, start_flow_index, ix);
1004 ix += MLX5E_L2_GROUP1_SIZE;
1005 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1006 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1007 if (IS_ERR(ft->g[ft->num_groups]))
1008 goto err_destroy_groups;
1009 ft->num_groups++;
1010
1011 /* Flow Group for allmulti */
1012 eth_zero_addr(mc_dmac);
1013 mc_dmac[0] = 0x01;
1014 MLX5_SET_CFG(in, start_flow_index, ix);
1015 ix += MLX5E_L2_GROUP2_SIZE;
1016 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1017 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1018 if (IS_ERR(ft->g[ft->num_groups]))
1019 goto err_destroy_groups;
1020 ft->num_groups++;
1021
1022 /* Flow Group for l2 traps */
1023 memset(in, 0, inlen);
1024 MLX5_SET_CFG(in, start_flow_index, ix);
1025 ix += MLX5E_L2_GROUP_TRAP_SIZE;
1026 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1027 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1028 if (IS_ERR(ft->g[ft->num_groups]))
1029 goto err_destroy_groups;
1030 ft->num_groups++;
1031
1032 kvfree(in);
1033 return 0;
1034
1035 err_destroy_groups:
1036 err = PTR_ERR(ft->g[ft->num_groups]);
1037 ft->g[ft->num_groups] = NULL;
1038 mlx5e_destroy_groups(ft);
1039 kvfree(in);
1040 kfree(ft->g);
1041
1042 return err;
1043 }
1044
mlx5e_destroy_l2_table(struct mlx5e_priv * priv)1045 static void mlx5e_destroy_l2_table(struct mlx5e_priv *priv)
1046 {
1047 mlx5e_destroy_flow_table(&priv->fs.l2.ft);
1048 }
1049
mlx5e_create_l2_table(struct mlx5e_priv * priv)1050 static int mlx5e_create_l2_table(struct mlx5e_priv *priv)
1051 {
1052 struct mlx5e_l2_table *l2_table = &priv->fs.l2;
1053 struct mlx5e_flow_table *ft = &l2_table->ft;
1054 struct mlx5_flow_table_attr ft_attr = {};
1055 int err;
1056
1057 ft->num_groups = 0;
1058
1059 ft_attr.max_fte = MLX5E_L2_TABLE_SIZE;
1060 ft_attr.level = MLX5E_L2_FT_LEVEL;
1061 ft_attr.prio = MLX5E_NIC_PRIO;
1062
1063 ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
1064 if (IS_ERR(ft->t)) {
1065 err = PTR_ERR(ft->t);
1066 ft->t = NULL;
1067 return err;
1068 }
1069
1070 err = mlx5e_create_l2_table_groups(l2_table);
1071 if (err)
1072 goto err_destroy_flow_table;
1073
1074 return 0;
1075
1076 err_destroy_flow_table:
1077 mlx5_destroy_flow_table(ft->t);
1078 ft->t = NULL;
1079
1080 return err;
1081 }
1082
1083 #define MLX5E_NUM_VLAN_GROUPS 5
1084 #define MLX5E_VLAN_GROUP0_SIZE BIT(12)
1085 #define MLX5E_VLAN_GROUP1_SIZE BIT(12)
1086 #define MLX5E_VLAN_GROUP2_SIZE BIT(1)
1087 #define MLX5E_VLAN_GROUP3_SIZE BIT(0)
1088 #define MLX5E_VLAN_GROUP_TRAP_SIZE BIT(0) /* must be last */
1089 #define MLX5E_VLAN_TABLE_SIZE (MLX5E_VLAN_GROUP0_SIZE +\
1090 MLX5E_VLAN_GROUP1_SIZE +\
1091 MLX5E_VLAN_GROUP2_SIZE +\
1092 MLX5E_VLAN_GROUP3_SIZE +\
1093 MLX5E_VLAN_GROUP_TRAP_SIZE)
1094
__mlx5e_create_vlan_table_groups(struct mlx5e_flow_table * ft,u32 * in,int inlen)1095 static int __mlx5e_create_vlan_table_groups(struct mlx5e_flow_table *ft, u32 *in,
1096 int inlen)
1097 {
1098 int err;
1099 int ix = 0;
1100 u8 *mc = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
1101
1102 memset(in, 0, inlen);
1103 MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
1104 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.cvlan_tag);
1105 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.first_vid);
1106 MLX5_SET_CFG(in, start_flow_index, ix);
1107 ix += MLX5E_VLAN_GROUP0_SIZE;
1108 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1109 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1110 if (IS_ERR(ft->g[ft->num_groups]))
1111 goto err_destroy_groups;
1112 ft->num_groups++;
1113
1114 memset(in, 0, inlen);
1115 MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
1116 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.svlan_tag);
1117 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.first_vid);
1118 MLX5_SET_CFG(in, start_flow_index, ix);
1119 ix += MLX5E_VLAN_GROUP1_SIZE;
1120 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1121 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1122 if (IS_ERR(ft->g[ft->num_groups]))
1123 goto err_destroy_groups;
1124 ft->num_groups++;
1125
1126 memset(in, 0, inlen);
1127 MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
1128 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.cvlan_tag);
1129 MLX5_SET_CFG(in, start_flow_index, ix);
1130 ix += MLX5E_VLAN_GROUP2_SIZE;
1131 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1132 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1133 if (IS_ERR(ft->g[ft->num_groups]))
1134 goto err_destroy_groups;
1135 ft->num_groups++;
1136
1137 memset(in, 0, inlen);
1138 MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
1139 MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.svlan_tag);
1140 MLX5_SET_CFG(in, start_flow_index, ix);
1141 ix += MLX5E_VLAN_GROUP3_SIZE;
1142 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1143 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1144 if (IS_ERR(ft->g[ft->num_groups]))
1145 goto err_destroy_groups;
1146 ft->num_groups++;
1147
1148 memset(in, 0, inlen);
1149 MLX5_SET_CFG(in, start_flow_index, ix);
1150 ix += MLX5E_VLAN_GROUP_TRAP_SIZE;
1151 MLX5_SET_CFG(in, end_flow_index, ix - 1);
1152 ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
1153 if (IS_ERR(ft->g[ft->num_groups]))
1154 goto err_destroy_groups;
1155 ft->num_groups++;
1156
1157 return 0;
1158
1159 err_destroy_groups:
1160 err = PTR_ERR(ft->g[ft->num_groups]);
1161 ft->g[ft->num_groups] = NULL;
1162 mlx5e_destroy_groups(ft);
1163
1164 return err;
1165 }
1166
mlx5e_create_vlan_table_groups(struct mlx5e_flow_table * ft)1167 static int mlx5e_create_vlan_table_groups(struct mlx5e_flow_table *ft)
1168 {
1169 u32 *in;
1170 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1171 int err;
1172
1173 in = kvzalloc(inlen, GFP_KERNEL);
1174 if (!in)
1175 return -ENOMEM;
1176
1177 err = __mlx5e_create_vlan_table_groups(ft, in, inlen);
1178
1179 kvfree(in);
1180 return err;
1181 }
1182
mlx5e_create_vlan_table(struct mlx5e_priv * priv)1183 static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
1184 {
1185 struct mlx5_flow_table_attr ft_attr = {};
1186 struct mlx5e_flow_table *ft;
1187 int err;
1188
1189 ft = &priv->fs.vlan->ft;
1190 ft->num_groups = 0;
1191
1192 ft_attr.max_fte = MLX5E_VLAN_TABLE_SIZE;
1193 ft_attr.level = MLX5E_VLAN_FT_LEVEL;
1194 ft_attr.prio = MLX5E_NIC_PRIO;
1195
1196 ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
1197 if (IS_ERR(ft->t))
1198 return PTR_ERR(ft->t);
1199
1200 ft->g = kcalloc(MLX5E_NUM_VLAN_GROUPS, sizeof(*ft->g), GFP_KERNEL);
1201 if (!ft->g) {
1202 err = -ENOMEM;
1203 goto err_destroy_vlan_table;
1204 }
1205
1206 err = mlx5e_create_vlan_table_groups(ft);
1207 if (err)
1208 goto err_free_g;
1209
1210 mlx5e_add_vlan_rules(priv);
1211
1212 return 0;
1213
1214 err_free_g:
1215 kfree(ft->g);
1216 err_destroy_vlan_table:
1217 mlx5_destroy_flow_table(ft->t);
1218
1219 return err;
1220 }
1221
mlx5e_destroy_vlan_table(struct mlx5e_priv * priv)1222 static void mlx5e_destroy_vlan_table(struct mlx5e_priv *priv)
1223 {
1224 mlx5e_del_vlan_rules(priv);
1225 mlx5e_destroy_flow_table(&priv->fs.vlan->ft);
1226 }
1227
mlx5e_destroy_inner_ttc_table(struct mlx5e_priv * priv)1228 static void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv)
1229 {
1230 if (!mlx5_tunnel_inner_ft_supported(priv->mdev))
1231 return;
1232 mlx5_destroy_ttc_table(priv->fs.inner_ttc);
1233 }
1234
mlx5e_destroy_ttc_table(struct mlx5e_priv * priv)1235 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv)
1236 {
1237 mlx5_destroy_ttc_table(priv->fs.ttc);
1238 }
1239
mlx5e_create_inner_ttc_table(struct mlx5e_priv * priv)1240 static int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv)
1241 {
1242 struct ttc_params ttc_params = {};
1243
1244 if (!mlx5_tunnel_inner_ft_supported(priv->mdev))
1245 return 0;
1246
1247 mlx5e_set_inner_ttc_params(priv, &ttc_params);
1248 priv->fs.inner_ttc = mlx5_create_inner_ttc_table(priv->mdev,
1249 &ttc_params);
1250 if (IS_ERR(priv->fs.inner_ttc))
1251 return PTR_ERR(priv->fs.inner_ttc);
1252 return 0;
1253 }
1254
mlx5e_create_ttc_table(struct mlx5e_priv * priv)1255 int mlx5e_create_ttc_table(struct mlx5e_priv *priv)
1256 {
1257 struct ttc_params ttc_params = {};
1258
1259 mlx5e_set_ttc_params(priv, &ttc_params, true);
1260 priv->fs.ttc = mlx5_create_ttc_table(priv->mdev, &ttc_params);
1261 if (IS_ERR(priv->fs.ttc))
1262 return PTR_ERR(priv->fs.ttc);
1263 return 0;
1264 }
1265
mlx5e_create_flow_steering(struct mlx5e_priv * priv)1266 int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
1267 {
1268 int err;
1269
1270 priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
1271 MLX5_FLOW_NAMESPACE_KERNEL);
1272
1273 if (!priv->fs.ns)
1274 return -EOPNOTSUPP;
1275
1276 err = mlx5e_arfs_create_tables(priv);
1277 if (err) {
1278 netdev_err(priv->netdev, "Failed to create arfs tables, err=%d\n",
1279 err);
1280 priv->netdev->hw_features &= ~NETIF_F_NTUPLE;
1281 }
1282
1283 err = mlx5e_create_inner_ttc_table(priv);
1284 if (err) {
1285 netdev_err(priv->netdev,
1286 "Failed to create inner ttc table, err=%d\n",
1287 err);
1288 goto err_destroy_arfs_tables;
1289 }
1290
1291 err = mlx5e_create_ttc_table(priv);
1292 if (err) {
1293 netdev_err(priv->netdev, "Failed to create ttc table, err=%d\n",
1294 err);
1295 goto err_destroy_inner_ttc_table;
1296 }
1297
1298 err = mlx5e_create_l2_table(priv);
1299 if (err) {
1300 netdev_err(priv->netdev, "Failed to create l2 table, err=%d\n",
1301 err);
1302 goto err_destroy_ttc_table;
1303 }
1304
1305 err = mlx5e_create_vlan_table(priv);
1306 if (err) {
1307 netdev_err(priv->netdev, "Failed to create vlan table, err=%d\n",
1308 err);
1309 goto err_destroy_l2_table;
1310 }
1311
1312 err = mlx5e_ptp_alloc_rx_fs(priv);
1313 if (err)
1314 goto err_destory_vlan_table;
1315
1316 mlx5e_ethtool_init_steering(priv);
1317
1318 return 0;
1319
1320 err_destory_vlan_table:
1321 mlx5e_destroy_vlan_table(priv);
1322 err_destroy_l2_table:
1323 mlx5e_destroy_l2_table(priv);
1324 err_destroy_ttc_table:
1325 mlx5e_destroy_ttc_table(priv);
1326 err_destroy_inner_ttc_table:
1327 mlx5e_destroy_inner_ttc_table(priv);
1328 err_destroy_arfs_tables:
1329 mlx5e_arfs_destroy_tables(priv);
1330
1331 return err;
1332 }
1333
mlx5e_destroy_flow_steering(struct mlx5e_priv * priv)1334 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv)
1335 {
1336 mlx5e_ptp_free_rx_fs(priv);
1337 mlx5e_destroy_vlan_table(priv);
1338 mlx5e_destroy_l2_table(priv);
1339 mlx5e_destroy_ttc_table(priv);
1340 mlx5e_destroy_inner_ttc_table(priv);
1341 mlx5e_arfs_destroy_tables(priv);
1342 mlx5e_ethtool_cleanup_steering(priv);
1343 }
1344
mlx5e_fs_init(struct mlx5e_priv * priv)1345 int mlx5e_fs_init(struct mlx5e_priv *priv)
1346 {
1347 priv->fs.vlan = kvzalloc(sizeof(*priv->fs.vlan), GFP_KERNEL);
1348 if (!priv->fs.vlan)
1349 return -ENOMEM;
1350 return 0;
1351 }
1352
mlx5e_fs_cleanup(struct mlx5e_priv * priv)1353 void mlx5e_fs_cleanup(struct mlx5e_priv *priv)
1354 {
1355 kvfree(priv->fs.vlan);
1356 priv->fs.vlan = NULL;
1357 }
1358
