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
33#include <linux/etherdevice.h>
34#include <linux/idr.h>
35#include <linux/mlx5/driver.h>
36#include <linux/mlx5/mlx5_ifc.h>
37#include <linux/mlx5/vport.h>
38#include <linux/mlx5/fs.h>
39#include "mlx5_core.h"
40#include "eswitch.h"
41#include "esw/indir_table.h"
42#include "esw/acl/ofld.h"
43#include "rdma.h"
44#include "en.h"
45#include "fs_core.h"
46#include "lib/mlx5.h"
47#include "lib/devcom.h"
48#include "lib/eq.h"
49#include "lib/fs_chains.h"
50#include "en_tc.h"
51#include "en/mapping.h"
52#include "devlink.h"
53#include "lag/lag.h"
54#include "en/tc/post_meter.h"
55#include "fw_reset.h"
56
57/* There are two match-all miss flows, one for unicast dst mac and
58 * one for multicast.
59 */
60#define MLX5_ESW_MISS_FLOWS (2)
61#define UPLINK_REP_INDEX 0
62
63#define MLX5_ESW_VPORT_TBL_SIZE 128
64#define MLX5_ESW_VPORT_TBL_NUM_GROUPS 4
65
66#define MLX5_ESW_FT_OFFLOADS_DROP_RULE (1)
67
68#define MLX5_ESW_MAX_CTRL_EQS 4
69#define MLX5_ESW_DEFAULT_SF_COMP_EQS 8
70
71static struct esw_vport_tbl_namespace mlx5_esw_vport_tbl_mirror_ns = {
72 .max_fte = MLX5_ESW_VPORT_TBL_SIZE,
73 .max_num_groups = MLX5_ESW_VPORT_TBL_NUM_GROUPS,
74 .flags = 0,
75};
76
77static struct mlx5_eswitch_rep *mlx5_eswitch_get_rep(struct mlx5_eswitch *esw,
78 u16 vport_num)
79{
80 return xa_load(&esw->offloads.vport_reps, index: vport_num);
81}
82
83static void
84mlx5_eswitch_set_rule_flow_source(struct mlx5_eswitch *esw,
85 struct mlx5_flow_spec *spec,
86 struct mlx5_esw_flow_attr *attr)
87{
88 if (!MLX5_CAP_ESW_FLOWTABLE(esw->dev, flow_source) || !attr || !attr->in_rep)
89 return;
90
91 if (attr->int_port) {
92 spec->flow_context.flow_source = mlx5e_tc_int_port_get_flow_source(int_port: attr->int_port);
93
94 return;
95 }
96
97 spec->flow_context.flow_source = (attr->in_rep->vport == MLX5_VPORT_UPLINK) ?
98 MLX5_FLOW_CONTEXT_FLOW_SOURCE_UPLINK :
99 MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT;
100}
101
102/* Actually only the upper 16 bits of reg c0 need to be cleared, but the lower 16 bits
103 * are not needed as well in the following process. So clear them all for simplicity.
104 */
105void
106mlx5_eswitch_clear_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec)
107{
108 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
109 void *misc2;
110
111 misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2);
112 MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, 0);
113
114 misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2);
115 MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, 0);
116
117 if (!memchr_inv(p: misc2, c: 0, MLX5_ST_SZ_BYTES(fte_match_set_misc2)))
118 spec->match_criteria_enable &= ~MLX5_MATCH_MISC_PARAMETERS_2;
119 }
120}
121
122static void
123mlx5_eswitch_set_rule_source_port(struct mlx5_eswitch *esw,
124 struct mlx5_flow_spec *spec,
125 struct mlx5_flow_attr *attr,
126 struct mlx5_eswitch *src_esw,
127 u16 vport)
128{
129 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
130 u32 metadata;
131 void *misc2;
132 void *misc;
133
134 /* Use metadata matching because vport is not represented by single
135 * VHCA in dual-port RoCE mode, and matching on source vport may fail.
136 */
137 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
138 if (mlx5_esw_indir_table_decap_vport(attr))
139 vport = mlx5_esw_indir_table_decap_vport(attr);
140
141 if (!attr->chain && esw_attr && esw_attr->int_port)
142 metadata =
143 mlx5e_tc_int_port_get_metadata_for_match(int_port: esw_attr->int_port);
144 else
145 metadata =
146 mlx5_eswitch_get_vport_metadata_for_match(esw: src_esw, vport_num: vport);
147
148 misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2);
149 MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, metadata);
150
151 misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2);
152 MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0,
153 mlx5_eswitch_get_vport_metadata_mask());
154
155 spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS_2;
156 } else {
157 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
158 MLX5_SET(fte_match_set_misc, misc, source_port, vport);
159
160 if (MLX5_CAP_ESW(esw->dev, merged_eswitch))
161 MLX5_SET(fte_match_set_misc, misc,
162 source_eswitch_owner_vhca_id,
163 MLX5_CAP_GEN(src_esw->dev, vhca_id));
164
165 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
166 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
167 if (MLX5_CAP_ESW(esw->dev, merged_eswitch))
168 MLX5_SET_TO_ONES(fte_match_set_misc, misc,
169 source_eswitch_owner_vhca_id);
170
171 spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS;
172 }
173}
174
175static int
176esw_setup_decap_indir(struct mlx5_eswitch *esw,
177 struct mlx5_flow_attr *attr)
178{
179 struct mlx5_flow_table *ft;
180
181 if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE))
182 return -EOPNOTSUPP;
183
184 ft = mlx5_esw_indir_table_get(esw, attr,
185 vport: mlx5_esw_indir_table_decap_vport(attr), decap: true);
186 return PTR_ERR_OR_ZERO(ptr: ft);
187}
188
189static void
190esw_cleanup_decap_indir(struct mlx5_eswitch *esw,
191 struct mlx5_flow_attr *attr)
192{
193 if (mlx5_esw_indir_table_decap_vport(attr))
194 mlx5_esw_indir_table_put(esw,
195 vport: mlx5_esw_indir_table_decap_vport(attr),
196 decap: true);
197}
198
199static int
200esw_setup_mtu_dest(struct mlx5_flow_destination *dest,
201 struct mlx5e_meter_attr *meter,
202 int i)
203{
204 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_RANGE;
205 dest[i].range.field = MLX5_FLOW_DEST_RANGE_FIELD_PKT_LEN;
206 dest[i].range.min = 0;
207 dest[i].range.max = meter->params.mtu;
208 dest[i].range.hit_ft = mlx5e_post_meter_get_mtu_true_ft(post_meter: meter->post_meter);
209 dest[i].range.miss_ft = mlx5e_post_meter_get_mtu_false_ft(post_meter: meter->post_meter);
210
211 return 0;
212}
213
214static int
215esw_setup_sampler_dest(struct mlx5_flow_destination *dest,
216 struct mlx5_flow_act *flow_act,
217 u32 sampler_id,
218 int i)
219{
220 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
221 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER;
222 dest[i].sampler_id = sampler_id;
223
224 return 0;
225}
226
227static int
228esw_setup_ft_dest(struct mlx5_flow_destination *dest,
229 struct mlx5_flow_act *flow_act,
230 struct mlx5_eswitch *esw,
231 struct mlx5_flow_attr *attr,
232 int i)
233{
234 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
235 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
236 dest[i].ft = attr->dest_ft;
237
238 if (mlx5_esw_indir_table_decap_vport(attr))
239 return esw_setup_decap_indir(esw, attr);
240 return 0;
241}
242
243static void
244esw_setup_accept_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
245 struct mlx5_fs_chains *chains, int i)
246{
247 if (mlx5_chains_ignore_flow_level_supported(chains))
248 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
249 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
250 dest[i].ft = mlx5_chains_get_tc_end_ft(chains);
251}
252
253static void
254esw_setup_slow_path_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
255 struct mlx5_eswitch *esw, int i)
256{
257 if (MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ignore_flow_level))
258 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
259 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
260 dest[i].ft = mlx5_eswitch_get_slow_fdb(esw);
261}
262
263static int
264esw_setup_chain_dest(struct mlx5_flow_destination *dest,
265 struct mlx5_flow_act *flow_act,
266 struct mlx5_fs_chains *chains,
267 u32 chain, u32 prio, u32 level,
268 int i)
269{
270 struct mlx5_flow_table *ft;
271
272 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
273 ft = mlx5_chains_get_table(chains, chain, prio, level);
274 if (IS_ERR(ptr: ft))
275 return PTR_ERR(ptr: ft);
276
277 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
278 dest[i].ft = ft;
279 return 0;
280}
281
282static void esw_put_dest_tables_loop(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr,
283 int from, int to)
284{
285 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
286 struct mlx5_fs_chains *chains = esw_chains(esw);
287 int i;
288
289 for (i = from; i < to; i++)
290 if (esw_attr->dests[i].flags & MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE)
291 mlx5_chains_put_table(chains, chain: 0, prio: 1, level: 0);
292 else if (mlx5_esw_indir_table_needed(esw, attr, vport_num: esw_attr->dests[i].vport,
293 dest_mdev: esw_attr->dests[i].mdev))
294 mlx5_esw_indir_table_put(esw, vport: esw_attr->dests[i].vport, decap: false);
295}
296
297static bool
298esw_is_chain_src_port_rewrite(struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr)
299{
300 int i;
301
302 for (i = esw_attr->split_count; i < esw_attr->out_count; i++)
303 if (esw_attr->dests[i].flags & MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE)
304 return true;
305 return false;
306}
307
308static int
309esw_setup_chain_src_port_rewrite(struct mlx5_flow_destination *dest,
310 struct mlx5_flow_act *flow_act,
311 struct mlx5_eswitch *esw,
312 struct mlx5_fs_chains *chains,
313 struct mlx5_flow_attr *attr,
314 int *i)
315{
316 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
317 int err;
318
319 if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE))
320 return -EOPNOTSUPP;
321
322 /* flow steering cannot handle more than one dest with the same ft
323 * in a single flow
324 */
325 if (esw_attr->out_count - esw_attr->split_count > 1)
326 return -EOPNOTSUPP;
327
328 err = esw_setup_chain_dest(dest, flow_act, chains, chain: attr->dest_chain, prio: 1, level: 0, i: *i);
329 if (err)
330 return err;
331
332 if (esw_attr->dests[esw_attr->split_count].pkt_reformat) {
333 flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
334 flow_act->pkt_reformat = esw_attr->dests[esw_attr->split_count].pkt_reformat;
335 }
336 (*i)++;
337
338 return 0;
339}
340
341static void esw_cleanup_chain_src_port_rewrite(struct mlx5_eswitch *esw,
342 struct mlx5_flow_attr *attr)
343{
344 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
345
346 esw_put_dest_tables_loop(esw, attr, from: esw_attr->split_count, to: esw_attr->out_count);
347}
348
349static bool
350esw_is_indir_table(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr)
351{
352 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
353 bool result = false;
354 int i;
355
356 /* Indirect table is supported only for flows with in_port uplink
357 * and the destination is vport on the same eswitch as the uplink,
358 * return false in case at least one of destinations doesn't meet
359 * this criteria.
360 */
361 for (i = esw_attr->split_count; i < esw_attr->out_count; i++) {
362 if (esw_attr->dests[i].vport_valid &&
363 mlx5_esw_indir_table_needed(esw, attr, vport_num: esw_attr->dests[i].vport,
364 dest_mdev: esw_attr->dests[i].mdev)) {
365 result = true;
366 } else {
367 result = false;
368 break;
369 }
370 }
371 return result;
372}
373
374static int
375esw_setup_indir_table(struct mlx5_flow_destination *dest,
376 struct mlx5_flow_act *flow_act,
377 struct mlx5_eswitch *esw,
378 struct mlx5_flow_attr *attr,
379 int *i)
380{
381 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
382 int j, err;
383
384 if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE))
385 return -EOPNOTSUPP;
386
387 for (j = esw_attr->split_count; j < esw_attr->out_count; j++, (*i)++) {
388 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
389 dest[*i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
390
391 dest[*i].ft = mlx5_esw_indir_table_get(esw, attr,
392 vport: esw_attr->dests[j].vport, decap: false);
393 if (IS_ERR(ptr: dest[*i].ft)) {
394 err = PTR_ERR(ptr: dest[*i].ft);
395 goto err_indir_tbl_get;
396 }
397 }
398
399 if (mlx5_esw_indir_table_decap_vport(attr)) {
400 err = esw_setup_decap_indir(esw, attr);
401 if (err)
402 goto err_indir_tbl_get;
403 }
404
405 return 0;
406
407err_indir_tbl_get:
408 esw_put_dest_tables_loop(esw, attr, from: esw_attr->split_count, to: j);
409 return err;
410}
411
412static void esw_cleanup_indir_table(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr)
413{
414 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
415
416 esw_put_dest_tables_loop(esw, attr, from: esw_attr->split_count, to: esw_attr->out_count);
417 esw_cleanup_decap_indir(esw, attr);
418}
419
420static void
421esw_cleanup_chain_dest(struct mlx5_fs_chains *chains, u32 chain, u32 prio, u32 level)
422{
423 mlx5_chains_put_table(chains, chain, prio, level);
424}
425
426static bool esw_same_vhca_id(struct mlx5_core_dev *mdev1, struct mlx5_core_dev *mdev2)
427{
428 return MLX5_CAP_GEN(mdev1, vhca_id) == MLX5_CAP_GEN(mdev2, vhca_id);
429}
430
431static bool esw_setup_uplink_fwd_ipsec_needed(struct mlx5_eswitch *esw,
432 struct mlx5_esw_flow_attr *esw_attr,
433 int attr_idx)
434{
435 if (esw->offloads.ft_ipsec_tx_pol &&
436 esw_attr->dests[attr_idx].vport_valid &&
437 esw_attr->dests[attr_idx].vport == MLX5_VPORT_UPLINK &&
438 /* To be aligned with software, encryption is needed only for tunnel device */
439 (esw_attr->dests[attr_idx].flags & MLX5_ESW_DEST_ENCAP_VALID) &&
440 esw_attr->dests[attr_idx].vport != esw_attr->in_rep->vport &&
441 esw_same_vhca_id(mdev1: esw_attr->dests[attr_idx].mdev, mdev2: esw->dev))
442 return true;
443
444 return false;
445}
446
447static bool esw_flow_dests_fwd_ipsec_check(struct mlx5_eswitch *esw,
448 struct mlx5_esw_flow_attr *esw_attr)
449{
450 int i;
451
452 if (!esw->offloads.ft_ipsec_tx_pol)
453 return true;
454
455 for (i = 0; i < esw_attr->split_count; i++)
456 if (esw_setup_uplink_fwd_ipsec_needed(esw, esw_attr, attr_idx: i))
457 return false;
458
459 for (i = esw_attr->split_count; i < esw_attr->out_count; i++)
460 if (esw_setup_uplink_fwd_ipsec_needed(esw, esw_attr, attr_idx: i) &&
461 (esw_attr->out_count - esw_attr->split_count > 1))
462 return false;
463
464 return true;
465}
466
467static void
468esw_setup_dest_fwd_vport(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
469 struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr,
470 int attr_idx, int dest_idx, bool pkt_reformat)
471{
472 dest[dest_idx].type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
473 dest[dest_idx].vport.num = esw_attr->dests[attr_idx].vport;
474 if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) {
475 dest[dest_idx].vport.vhca_id =
476 MLX5_CAP_GEN(esw_attr->dests[attr_idx].mdev, vhca_id);
477 dest[dest_idx].vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
478 if (dest[dest_idx].vport.num == MLX5_VPORT_UPLINK &&
479 mlx5_lag_is_mpesw(dev: esw->dev))
480 dest[dest_idx].type = MLX5_FLOW_DESTINATION_TYPE_UPLINK;
481 }
482 if (esw_attr->dests[attr_idx].flags & MLX5_ESW_DEST_ENCAP_VALID) {
483 if (pkt_reformat) {
484 flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
485 flow_act->pkt_reformat = esw_attr->dests[attr_idx].pkt_reformat;
486 }
487 dest[dest_idx].vport.flags |= MLX5_FLOW_DEST_VPORT_REFORMAT_ID;
488 dest[dest_idx].vport.pkt_reformat = esw_attr->dests[attr_idx].pkt_reformat;
489 }
490}
491
492static void
493esw_setup_dest_fwd_ipsec(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
494 struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr,
495 int attr_idx, int dest_idx, bool pkt_reformat)
496{
497 dest[dest_idx].ft = esw->offloads.ft_ipsec_tx_pol;
498 dest[dest_idx].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
499 if (pkt_reformat &&
500 esw_attr->dests[attr_idx].flags & MLX5_ESW_DEST_ENCAP_VALID) {
501 flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
502 flow_act->pkt_reformat = esw_attr->dests[attr_idx].pkt_reformat;
503 }
504}
505
506static void
507esw_setup_vport_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
508 struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr,
509 int attr_idx, int dest_idx, bool pkt_reformat)
510{
511 if (esw_setup_uplink_fwd_ipsec_needed(esw, esw_attr, attr_idx))
512 esw_setup_dest_fwd_ipsec(dest, flow_act, esw, esw_attr,
513 attr_idx, dest_idx, pkt_reformat);
514 else
515 esw_setup_dest_fwd_vport(dest, flow_act, esw, esw_attr,
516 attr_idx, dest_idx, pkt_reformat);
517}
518
519static int
520esw_setup_vport_dests(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act,
521 struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr,
522 int i)
523{
524 int j;
525
526 for (j = esw_attr->split_count; j < esw_attr->out_count; j++, i++)
527 esw_setup_vport_dest(dest, flow_act, esw, esw_attr, attr_idx: j, dest_idx: i, pkt_reformat: true);
528 return i;
529}
530
531static bool
532esw_src_port_rewrite_supported(struct mlx5_eswitch *esw)
533{
534 return MLX5_CAP_GEN(esw->dev, reg_c_preserve) &&
535 mlx5_eswitch_vport_match_metadata_enabled(esw) &&
536 MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ignore_flow_level);
537}
538
539static bool
540esw_dests_to_int_external(struct mlx5_flow_destination *dests, int max_dest)
541{
542 bool internal_dest = false, external_dest = false;
543 int i;
544
545 for (i = 0; i < max_dest; i++) {
546 if (dests[i].type != MLX5_FLOW_DESTINATION_TYPE_VPORT &&
547 dests[i].type != MLX5_FLOW_DESTINATION_TYPE_UPLINK)
548 continue;
549
550 /* Uplink dest is external, but considered as internal
551 * if there is reformat because firmware uses LB+hairpin to support it.
552 */
553 if (dests[i].vport.num == MLX5_VPORT_UPLINK &&
554 !(dests[i].vport.flags & MLX5_FLOW_DEST_VPORT_REFORMAT_ID))
555 external_dest = true;
556 else
557 internal_dest = true;
558
559 if (internal_dest && external_dest)
560 return true;
561 }
562
563 return false;
564}
565
566static int
567esw_setup_dests(struct mlx5_flow_destination *dest,
568 struct mlx5_flow_act *flow_act,
569 struct mlx5_eswitch *esw,
570 struct mlx5_flow_attr *attr,
571 struct mlx5_flow_spec *spec,
572 int *i)
573{
574 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
575 struct mlx5_fs_chains *chains = esw_chains(esw);
576 int err = 0;
577
578 if (!mlx5_eswitch_termtbl_required(esw, attr, flow_act, spec) &&
579 esw_src_port_rewrite_supported(esw))
580 attr->flags |= MLX5_ATTR_FLAG_SRC_REWRITE;
581
582 if (attr->flags & MLX5_ATTR_FLAG_SLOW_PATH) {
583 esw_setup_slow_path_dest(dest, flow_act, esw, i: *i);
584 (*i)++;
585 goto out;
586 }
587
588 if (attr->flags & MLX5_ATTR_FLAG_SAMPLE) {
589 esw_setup_sampler_dest(dest, flow_act, sampler_id: attr->sample_attr.sampler_id, i: *i);
590 (*i)++;
591 } else if (attr->flags & MLX5_ATTR_FLAG_ACCEPT) {
592 esw_setup_accept_dest(dest, flow_act, chains, i: *i);
593 (*i)++;
594 } else if (attr->flags & MLX5_ATTR_FLAG_MTU) {
595 err = esw_setup_mtu_dest(dest, meter: &attr->meter_attr, i: *i);
596 (*i)++;
597 } else if (esw_is_indir_table(esw, attr)) {
598 err = esw_setup_indir_table(dest, flow_act, esw, attr, i);
599 } else if (esw_is_chain_src_port_rewrite(esw, esw_attr)) {
600 err = esw_setup_chain_src_port_rewrite(dest, flow_act, esw, chains, attr, i);
601 } else {
602 *i = esw_setup_vport_dests(dest, flow_act, esw, esw_attr, i: *i);
603
604 if (attr->dest_ft) {
605 err = esw_setup_ft_dest(dest, flow_act, esw, attr, i: *i);
606 (*i)++;
607 } else if (attr->dest_chain) {
608 err = esw_setup_chain_dest(dest, flow_act, chains, chain: attr->dest_chain,
609 prio: 1, level: 0, i: *i);
610 (*i)++;
611 }
612 }
613
614 if (attr->extra_split_ft) {
615 flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
616 dest[*i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
617 dest[*i].ft = attr->extra_split_ft;
618 (*i)++;
619 }
620
621out:
622 return err;
623}
624
625static void
626esw_cleanup_dests(struct mlx5_eswitch *esw,
627 struct mlx5_flow_attr *attr)
628{
629 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
630 struct mlx5_fs_chains *chains = esw_chains(esw);
631
632 if (attr->dest_ft) {
633 esw_cleanup_decap_indir(esw, attr);
634 } else if (!mlx5e_tc_attr_flags_skip(attr_flags: attr->flags)) {
635 if (attr->dest_chain)
636 esw_cleanup_chain_dest(chains, chain: attr->dest_chain, prio: 1, level: 0);
637 else if (esw_is_indir_table(esw, attr))
638 esw_cleanup_indir_table(esw, attr);
639 else if (esw_is_chain_src_port_rewrite(esw, esw_attr))
640 esw_cleanup_chain_src_port_rewrite(esw, attr);
641 }
642}
643
644static void
645esw_setup_meter(struct mlx5_flow_attr *attr, struct mlx5_flow_act *flow_act)
646{
647 struct mlx5e_flow_meter_handle *meter;
648
649 meter = attr->meter_attr.meter;
650 flow_act->exe_aso.type = attr->exe_aso_type;
651 flow_act->exe_aso.object_id = meter->obj_id;
652 flow_act->exe_aso.base_id = mlx5e_flow_meter_get_base_id(meter);
653 flow_act->exe_aso.flow_meter.meter_idx = meter->idx;
654 flow_act->exe_aso.flow_meter.init_color = MLX5_FLOW_METER_COLOR_GREEN;
655 /* use metadata reg 5 for packet color */
656 flow_act->exe_aso.return_reg_id = 5;
657}
658
659struct mlx5_flow_handle *
660mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
661 struct mlx5_flow_spec *spec,
662 struct mlx5_flow_attr *attr)
663{
664 struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, };
665 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
666 struct mlx5_fs_chains *chains = esw_chains(esw);
667 bool split = !!(esw_attr->split_count);
668 struct mlx5_vport_tbl_attr fwd_attr;
669 struct mlx5_flow_destination *dest;
670 struct mlx5_flow_handle *rule;
671 struct mlx5_flow_table *fdb;
672 int i = 0;
673
674 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
675 return ERR_PTR(error: -EOPNOTSUPP);
676
677 if (!mlx5_eswitch_vlan_actions_supported(dev: esw->dev, vlan_depth: 1))
678 return ERR_PTR(error: -EOPNOTSUPP);
679
680 if (!esw_flow_dests_fwd_ipsec_check(esw, esw_attr))
681 return ERR_PTR(error: -EOPNOTSUPP);
682
683 dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL);
684 if (!dest)
685 return ERR_PTR(error: -ENOMEM);
686
687 flow_act.action = attr->action;
688
689 if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
690 flow_act.vlan[0].ethtype = ntohs(esw_attr->vlan_proto[0]);
691 flow_act.vlan[0].vid = esw_attr->vlan_vid[0];
692 flow_act.vlan[0].prio = esw_attr->vlan_prio[0];
693 if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2) {
694 flow_act.vlan[1].ethtype = ntohs(esw_attr->vlan_proto[1]);
695 flow_act.vlan[1].vid = esw_attr->vlan_vid[1];
696 flow_act.vlan[1].prio = esw_attr->vlan_prio[1];
697 }
698 }
699
700 mlx5_eswitch_set_rule_flow_source(esw, spec, attr: esw_attr);
701
702 if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
703 int err;
704
705 err = esw_setup_dests(dest, flow_act: &flow_act, esw, attr, spec, i: &i);
706 if (err) {
707 rule = ERR_PTR(error: err);
708 goto err_create_goto_table;
709 }
710
711 /* Header rewrite with combined wire+loopback in FDB is not allowed */
712 if ((flow_act.action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) &&
713 esw_dests_to_int_external(dests: dest, max_dest: i)) {
714 esw_warn(esw->dev,
715 "FDB: Header rewrite with forwarding to both internal and external dests is not allowed\n");
716 rule = ERR_PTR(error: -EINVAL);
717 goto err_esw_get;
718 }
719 }
720
721 if (esw_attr->decap_pkt_reformat)
722 flow_act.pkt_reformat = esw_attr->decap_pkt_reformat;
723
724 if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
725 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
726 dest[i].counter = attr->counter;
727 i++;
728 }
729
730 if (attr->outer_match_level != MLX5_MATCH_NONE)
731 spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS;
732 if (attr->inner_match_level != MLX5_MATCH_NONE)
733 spec->match_criteria_enable |= MLX5_MATCH_INNER_HEADERS;
734
735 if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
736 flow_act.modify_hdr = attr->modify_hdr;
737
738 if ((flow_act.action & MLX5_FLOW_CONTEXT_ACTION_EXECUTE_ASO) &&
739 attr->exe_aso_type == MLX5_EXE_ASO_FLOW_METER)
740 esw_setup_meter(attr, flow_act: &flow_act);
741
742 if (split) {
743 fwd_attr.chain = attr->chain;
744 fwd_attr.prio = attr->prio;
745 fwd_attr.vport = esw_attr->in_rep->vport;
746 fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns;
747
748 fdb = mlx5_esw_vporttbl_get(esw, attr: &fwd_attr);
749 } else {
750 if (attr->chain || attr->prio)
751 fdb = mlx5_chains_get_table(chains, chain: attr->chain,
752 prio: attr->prio, level: 0);
753 else
754 fdb = attr->ft;
755
756 if (!(attr->flags & MLX5_ATTR_FLAG_NO_IN_PORT))
757 mlx5_eswitch_set_rule_source_port(esw, spec, attr,
758 src_esw: esw_attr->in_mdev->priv.eswitch,
759 vport: esw_attr->in_rep->vport);
760 }
761 if (IS_ERR(ptr: fdb)) {
762 rule = ERR_CAST(ptr: fdb);
763 goto err_esw_get;
764 }
765
766 if (!i) {
767 kfree(objp: dest);
768 dest = NULL;
769 }
770
771 if (mlx5_eswitch_termtbl_required(esw, attr, flow_act: &flow_act, spec))
772 rule = mlx5_eswitch_add_termtbl_rule(esw, ft: fdb, spec, attr: esw_attr,
773 flow_act: &flow_act, dest, num_dest: i);
774 else
775 rule = mlx5_add_flow_rules(ft: fdb, spec, flow_act: &flow_act, dest, num_dest: i);
776 if (IS_ERR(ptr: rule))
777 goto err_add_rule;
778 else
779 atomic64_inc(v: &esw->offloads.num_flows);
780
781 kfree(objp: dest);
782 return rule;
783
784err_add_rule:
785 if (split)
786 mlx5_esw_vporttbl_put(esw, attr: &fwd_attr);
787 else if (attr->chain || attr->prio)
788 mlx5_chains_put_table(chains, chain: attr->chain, prio: attr->prio, level: 0);
789err_esw_get:
790 esw_cleanup_dests(esw, attr);
791err_create_goto_table:
792 kfree(objp: dest);
793 return rule;
794}
795
796struct mlx5_flow_handle *
797mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
798 struct mlx5_flow_spec *spec,
799 struct mlx5_flow_attr *attr)
800{
801 struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, };
802 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
803 struct mlx5_fs_chains *chains = esw_chains(esw);
804 struct mlx5_vport_tbl_attr fwd_attr;
805 struct mlx5_flow_destination *dest;
806 struct mlx5_flow_table *fast_fdb;
807 struct mlx5_flow_table *fwd_fdb;
808 struct mlx5_flow_handle *rule;
809 int i, err = 0;
810
811 dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL);
812 if (!dest)
813 return ERR_PTR(error: -ENOMEM);
814
815 fast_fdb = mlx5_chains_get_table(chains, chain: attr->chain, prio: attr->prio, level: 0);
816 if (IS_ERR(ptr: fast_fdb)) {
817 rule = ERR_CAST(ptr: fast_fdb);
818 goto err_get_fast;
819 }
820
821 fwd_attr.chain = attr->chain;
822 fwd_attr.prio = attr->prio;
823 fwd_attr.vport = esw_attr->in_rep->vport;
824 fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns;
825 fwd_fdb = mlx5_esw_vporttbl_get(esw, attr: &fwd_attr);
826 if (IS_ERR(ptr: fwd_fdb)) {
827 rule = ERR_CAST(ptr: fwd_fdb);
828 goto err_get_fwd;
829 }
830
831 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
832 for (i = 0; i < esw_attr->split_count; i++) {
833 if (esw_attr->dests[i].flags & MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE)
834 /* Source port rewrite (forward to ovs internal port or statck device) isn't
835 * supported in the rule of split action.
836 */
837 err = -EOPNOTSUPP;
838 else
839 esw_setup_vport_dest(dest, flow_act: &flow_act, esw, esw_attr, attr_idx: i, dest_idx: i, pkt_reformat: false);
840
841 if (err) {
842 rule = ERR_PTR(error: err);
843 goto err_chain_src_rewrite;
844 }
845 }
846 dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
847 dest[i].ft = fwd_fdb;
848 i++;
849
850 mlx5_eswitch_set_rule_source_port(esw, spec, attr,
851 src_esw: esw_attr->in_mdev->priv.eswitch,
852 vport: esw_attr->in_rep->vport);
853
854 if (attr->outer_match_level != MLX5_MATCH_NONE)
855 spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS;
856
857 flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
858 rule = mlx5_add_flow_rules(ft: fast_fdb, spec, flow_act: &flow_act, dest, num_dest: i);
859
860 if (IS_ERR(ptr: rule)) {
861 i = esw_attr->split_count;
862 goto err_chain_src_rewrite;
863 }
864
865 atomic64_inc(v: &esw->offloads.num_flows);
866
867 kfree(objp: dest);
868 return rule;
869err_chain_src_rewrite:
870 mlx5_esw_vporttbl_put(esw, attr: &fwd_attr);
871err_get_fwd:
872 mlx5_chains_put_table(chains, chain: attr->chain, prio: attr->prio, level: 0);
873err_get_fast:
874 kfree(objp: dest);
875 return rule;
876}
877
878static void
879__mlx5_eswitch_del_rule(struct mlx5_eswitch *esw,
880 struct mlx5_flow_handle *rule,
881 struct mlx5_flow_attr *attr,
882 bool fwd_rule)
883{
884 struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr;
885 struct mlx5_fs_chains *chains = esw_chains(esw);
886 bool split = (esw_attr->split_count > 0);
887 struct mlx5_vport_tbl_attr fwd_attr;
888 int i;
889
890 mlx5_del_flow_rules(fr: rule);
891
892 if (!mlx5e_tc_attr_flags_skip(attr_flags: attr->flags)) {
893 /* unref the term table */
894 for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) {
895 if (esw_attr->dests[i].termtbl)
896 mlx5_eswitch_termtbl_put(esw, tt: esw_attr->dests[i].termtbl);
897 }
898 }
899
900 atomic64_dec(v: &esw->offloads.num_flows);
901
902 if (fwd_rule || split) {
903 fwd_attr.chain = attr->chain;
904 fwd_attr.prio = attr->prio;
905 fwd_attr.vport = esw_attr->in_rep->vport;
906 fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns;
907 }
908
909 if (fwd_rule) {
910 mlx5_esw_vporttbl_put(esw, attr: &fwd_attr);
911 mlx5_chains_put_table(chains, chain: attr->chain, prio: attr->prio, level: 0);
912 } else {
913 if (split)
914 mlx5_esw_vporttbl_put(esw, attr: &fwd_attr);
915 else if (attr->chain || attr->prio)
916 mlx5_chains_put_table(chains, chain: attr->chain, prio: attr->prio, level: 0);
917 esw_cleanup_dests(esw, attr);
918 }
919}
920
921void
922mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw,
923 struct mlx5_flow_handle *rule,
924 struct mlx5_flow_attr *attr)
925{
926 __mlx5_eswitch_del_rule(esw, rule, attr, fwd_rule: false);
927}
928
929void
930mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
931 struct mlx5_flow_handle *rule,
932 struct mlx5_flow_attr *attr)
933{
934 __mlx5_eswitch_del_rule(esw, rule, attr, fwd_rule: true);
935}
936
937struct mlx5_flow_handle *
938mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw,
939 struct mlx5_eswitch *from_esw,
940 struct mlx5_eswitch_rep *rep,
941 u32 sqn)
942{
943 struct mlx5_flow_act flow_act = {0};
944 struct mlx5_flow_destination dest = {};
945 struct mlx5_flow_handle *flow_rule;
946 struct mlx5_flow_spec *spec;
947 void *misc;
948 u16 vport;
949
950 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
951 if (!spec) {
952 flow_rule = ERR_PTR(error: -ENOMEM);
953 goto out;
954 }
955
956 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
957 MLX5_SET(fte_match_set_misc, misc, source_sqn, sqn);
958
959 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
960 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_sqn);
961
962 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
963
964 /* source vport is the esw manager */
965 vport = from_esw->manager_vport;
966
967 if (mlx5_eswitch_vport_match_metadata_enabled(esw: on_esw)) {
968 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2);
969 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
970 mlx5_eswitch_get_vport_metadata_for_match(from_esw, vport));
971
972 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2);
973 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
974 mlx5_eswitch_get_vport_metadata_mask());
975
976 spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS_2;
977 } else {
978 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
979 MLX5_SET(fte_match_set_misc, misc, source_port, vport);
980
981 if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
982 MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id,
983 MLX5_CAP_GEN(from_esw->dev, vhca_id));
984
985 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
986 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
987
988 if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch))
989 MLX5_SET_TO_ONES(fte_match_set_misc, misc,
990 source_eswitch_owner_vhca_id);
991
992 spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS;
993 }
994
995 dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
996 dest.vport.num = rep->vport;
997 dest.vport.vhca_id = MLX5_CAP_GEN(rep->esw->dev, vhca_id);
998 dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
999 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
1000
1001 if (rep->vport == MLX5_VPORT_UPLINK &&
1002 on_esw == from_esw && on_esw->offloads.ft_ipsec_tx_pol) {
1003 dest.ft = on_esw->offloads.ft_ipsec_tx_pol;
1004 flow_act.flags = FLOW_ACT_IGNORE_FLOW_LEVEL;
1005 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
1006 } else {
1007 dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
1008 dest.vport.num = rep->vport;
1009 dest.vport.vhca_id = MLX5_CAP_GEN(rep->esw->dev, vhca_id);
1010 dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
1011 }
1012
1013 if (MLX5_CAP_ESW_FLOWTABLE(on_esw->dev, flow_source) &&
1014 rep->vport == MLX5_VPORT_UPLINK)
1015 spec->flow_context.flow_source = MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT;
1016
1017 flow_rule = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw: on_esw),
1018 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1019 if (IS_ERR(ptr: flow_rule))
1020 esw_warn(on_esw->dev, "FDB: Failed to add send to vport rule err %pe\n",
1021 flow_rule);
1022out:
1023 kvfree(addr: spec);
1024 return flow_rule;
1025}
1026EXPORT_SYMBOL(mlx5_eswitch_add_send_to_vport_rule);
1027
1028void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule)
1029{
1030 mlx5_del_flow_rules(fr: rule);
1031}
1032
1033void mlx5_eswitch_del_send_to_vport_meta_rule(struct mlx5_flow_handle *rule)
1034{
1035 if (rule)
1036 mlx5_del_flow_rules(fr: rule);
1037}
1038
1039struct mlx5_flow_handle *
1040mlx5_eswitch_add_send_to_vport_meta_rule(struct mlx5_eswitch *esw, u16 vport_num)
1041{
1042 struct mlx5_flow_destination dest = {};
1043 struct mlx5_flow_act flow_act = {0};
1044 struct mlx5_flow_handle *flow_rule;
1045 struct mlx5_flow_spec *spec;
1046
1047 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
1048 if (!spec)
1049 return ERR_PTR(error: -ENOMEM);
1050
1051 MLX5_SET(fte_match_param, spec->match_criteria,
1052 misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask());
1053 MLX5_SET(fte_match_param, spec->match_criteria,
1054 misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK);
1055 MLX5_SET(fte_match_param, spec->match_value, misc_parameters_2.metadata_reg_c_1,
1056 ESW_TUN_SLOW_TABLE_GOTO_VPORT_MARK);
1057
1058 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2;
1059 dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
1060 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
1061
1062 MLX5_SET(fte_match_param, spec->match_value, misc_parameters_2.metadata_reg_c_0,
1063 mlx5_eswitch_get_vport_metadata_for_match(esw, vport_num));
1064 dest.vport.num = vport_num;
1065
1066 flow_rule = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1067 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1068 if (IS_ERR(ptr: flow_rule))
1069 esw_warn(esw->dev, "FDB: Failed to add send to vport meta rule vport %d, err %pe\n",
1070 vport_num, flow_rule);
1071
1072 kvfree(addr: spec);
1073 return flow_rule;
1074}
1075
1076static bool mlx5_eswitch_reg_c1_loopback_supported(struct mlx5_eswitch *esw)
1077{
1078 return MLX5_CAP_ESW_FLOWTABLE(esw->dev, fdb_to_vport_reg_c_id) &
1079 MLX5_FDB_TO_VPORT_REG_C_1;
1080}
1081
1082static int esw_set_passing_vport_metadata(struct mlx5_eswitch *esw, bool enable)
1083{
1084 u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)] = {};
1085 u32 min[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {};
1086 u32 in[MLX5_ST_SZ_DW(query_esw_vport_context_in)] = {};
1087 u8 curr, wanted;
1088 int err;
1089
1090 if (!mlx5_eswitch_reg_c1_loopback_supported(esw) &&
1091 !mlx5_eswitch_vport_match_metadata_enabled(esw))
1092 return 0;
1093
1094 MLX5_SET(query_esw_vport_context_in, in, opcode,
1095 MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT);
1096 err = mlx5_cmd_exec_inout(esw->dev, query_esw_vport_context, in, out);
1097 if (err)
1098 return err;
1099
1100 curr = MLX5_GET(query_esw_vport_context_out, out,
1101 esw_vport_context.fdb_to_vport_reg_c_id);
1102 wanted = MLX5_FDB_TO_VPORT_REG_C_0;
1103 if (mlx5_eswitch_reg_c1_loopback_supported(esw))
1104 wanted |= MLX5_FDB_TO_VPORT_REG_C_1;
1105
1106 if (enable)
1107 curr |= wanted;
1108 else
1109 curr &= ~wanted;
1110
1111 MLX5_SET(modify_esw_vport_context_in, min,
1112 esw_vport_context.fdb_to_vport_reg_c_id, curr);
1113 MLX5_SET(modify_esw_vport_context_in, min,
1114 field_select.fdb_to_vport_reg_c_id, 1);
1115
1116 err = mlx5_eswitch_modify_esw_vport_context(dev: esw->dev, vport: 0, other_vport: false, in: min);
1117 if (!err) {
1118 if (enable && (curr & MLX5_FDB_TO_VPORT_REG_C_1))
1119 esw->flags |= MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED;
1120 else
1121 esw->flags &= ~MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED;
1122 }
1123
1124 return err;
1125}
1126
1127static void peer_miss_rules_setup(struct mlx5_eswitch *esw,
1128 struct mlx5_core_dev *peer_dev,
1129 struct mlx5_flow_spec *spec,
1130 struct mlx5_flow_destination *dest)
1131{
1132 void *misc;
1133
1134 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
1135 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
1136 misc_parameters_2);
1137 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
1138 mlx5_eswitch_get_vport_metadata_mask());
1139
1140 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2;
1141 } else {
1142 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1143 misc_parameters);
1144
1145 MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id,
1146 MLX5_CAP_GEN(peer_dev, vhca_id));
1147
1148 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
1149
1150 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
1151 misc_parameters);
1152 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
1153 MLX5_SET_TO_ONES(fte_match_set_misc, misc,
1154 source_eswitch_owner_vhca_id);
1155 }
1156
1157 dest->type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
1158 dest->vport.num = peer_dev->priv.eswitch->manager_vport;
1159 dest->vport.vhca_id = MLX5_CAP_GEN(peer_dev, vhca_id);
1160 dest->vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
1161}
1162
1163static void esw_set_peer_miss_rule_source_port(struct mlx5_eswitch *esw,
1164 struct mlx5_eswitch *peer_esw,
1165 struct mlx5_flow_spec *spec,
1166 u16 vport)
1167{
1168 void *misc;
1169
1170 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
1171 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1172 misc_parameters_2);
1173 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
1174 mlx5_eswitch_get_vport_metadata_for_match(peer_esw,
1175 vport));
1176 } else {
1177 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1178 misc_parameters);
1179 MLX5_SET(fte_match_set_misc, misc, source_port, vport);
1180 }
1181}
1182
1183static int esw_add_fdb_peer_miss_rules(struct mlx5_eswitch *esw,
1184 struct mlx5_core_dev *peer_dev)
1185{
1186 struct mlx5_eswitch *peer_esw = peer_dev->priv.eswitch;
1187 struct mlx5_flow_destination dest = {};
1188 struct mlx5_flow_act flow_act = {0};
1189 struct mlx5_flow_handle **flows;
1190 struct mlx5_flow_handle *flow;
1191 struct mlx5_vport *peer_vport;
1192 struct mlx5_flow_spec *spec;
1193 int err, pfindex;
1194 unsigned long i;
1195 void *misc;
1196
1197 if (!MLX5_VPORT_MANAGER(peer_dev) &&
1198 !mlx5_core_is_ecpf_esw_manager(dev: peer_dev))
1199 return 0;
1200
1201 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
1202 if (!spec)
1203 return -ENOMEM;
1204
1205 peer_miss_rules_setup(esw, peer_dev, spec, dest: &dest);
1206
1207 flows = kvcalloc(peer_esw->total_vports, sizeof(*flows), GFP_KERNEL);
1208 if (!flows) {
1209 err = -ENOMEM;
1210 goto alloc_flows_err;
1211 }
1212
1213 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
1214 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1215 misc_parameters);
1216
1217 if (mlx5_core_is_ecpf_esw_manager(dev: peer_dev) &&
1218 mlx5_esw_host_functions_enabled(dev: peer_dev)) {
1219 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_PF);
1220 esw_set_peer_miss_rule_source_port(esw, peer_esw, spec,
1221 vport: MLX5_VPORT_PF);
1222
1223 flow = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1224 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1225 if (IS_ERR(ptr: flow)) {
1226 err = PTR_ERR(ptr: flow);
1227 goto add_pf_flow_err;
1228 }
1229 flows[peer_vport->index] = flow;
1230 }
1231
1232 if (mlx5_ecpf_vport_exists(dev: peer_dev)) {
1233 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_ECPF);
1234 MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_ECPF);
1235 flow = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1236 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1237 if (IS_ERR(ptr: flow)) {
1238 err = PTR_ERR(ptr: flow);
1239 goto add_ecpf_flow_err;
1240 }
1241 flows[peer_vport->index] = flow;
1242 }
1243
1244 if (mlx5_esw_host_functions_enabled(dev: esw->dev)) {
1245 mlx5_esw_for_each_vf_vport(peer_esw, i, peer_vport,
1246 mlx5_core_max_vfs(peer_dev)) {
1247 esw_set_peer_miss_rule_source_port(esw, peer_esw,
1248 spec,
1249 vport: peer_vport->vport);
1250
1251 flow = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1252 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1253 if (IS_ERR(ptr: flow)) {
1254 err = PTR_ERR(ptr: flow);
1255 goto add_vf_flow_err;
1256 }
1257 flows[peer_vport->index] = flow;
1258 }
1259 }
1260
1261 if (mlx5_core_ec_sriov_enabled(dev: peer_dev)) {
1262 mlx5_esw_for_each_ec_vf_vport(peer_esw, i, peer_vport,
1263 mlx5_core_max_ec_vfs(peer_dev)) {
1264 esw_set_peer_miss_rule_source_port(esw, peer_esw,
1265 spec,
1266 vport: peer_vport->vport);
1267 flow = mlx5_add_flow_rules(ft: esw->fdb_table.offloads.slow_fdb,
1268 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1269 if (IS_ERR(ptr: flow)) {
1270 err = PTR_ERR(ptr: flow);
1271 goto add_ec_vf_flow_err;
1272 }
1273 flows[peer_vport->index] = flow;
1274 }
1275 }
1276
1277 pfindex = mlx5_get_dev_index(dev: peer_dev);
1278 if (pfindex >= MLX5_MAX_PORTS) {
1279 esw_warn(esw->dev, "Peer dev index(%d) is over the max num defined(%d)\n",
1280 pfindex, MLX5_MAX_PORTS);
1281 err = -EINVAL;
1282 goto add_ec_vf_flow_err;
1283 }
1284 esw->fdb_table.offloads.peer_miss_rules[pfindex] = flows;
1285
1286 kvfree(addr: spec);
1287 return 0;
1288
1289add_ec_vf_flow_err:
1290 mlx5_esw_for_each_ec_vf_vport(peer_esw, i, peer_vport,
1291 mlx5_core_max_ec_vfs(peer_dev)) {
1292 if (!flows[peer_vport->index])
1293 continue;
1294 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1295 }
1296add_vf_flow_err:
1297 mlx5_esw_for_each_vf_vport(peer_esw, i, peer_vport,
1298 mlx5_core_max_vfs(peer_dev)) {
1299 if (!flows[peer_vport->index])
1300 continue;
1301 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1302 }
1303 if (mlx5_ecpf_vport_exists(dev: peer_dev)) {
1304 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_ECPF);
1305 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1306 }
1307add_ecpf_flow_err:
1308
1309 if (mlx5_core_is_ecpf_esw_manager(dev: peer_dev) &&
1310 mlx5_esw_host_functions_enabled(dev: peer_dev)) {
1311 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_PF);
1312 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1313 }
1314add_pf_flow_err:
1315 esw_warn(esw->dev, "FDB: Failed to add peer miss flow rule err %d\n", err);
1316 kvfree(addr: flows);
1317alloc_flows_err:
1318 kvfree(addr: spec);
1319 return err;
1320}
1321
1322static void esw_del_fdb_peer_miss_rules(struct mlx5_eswitch *esw,
1323 struct mlx5_core_dev *peer_dev)
1324{
1325 struct mlx5_eswitch *peer_esw = peer_dev->priv.eswitch;
1326 u16 peer_index = mlx5_get_dev_index(dev: peer_dev);
1327 struct mlx5_flow_handle **flows;
1328 struct mlx5_vport *peer_vport;
1329 unsigned long i;
1330
1331 flows = esw->fdb_table.offloads.peer_miss_rules[peer_index];
1332 if (!flows)
1333 return;
1334
1335 if (mlx5_core_ec_sriov_enabled(dev: peer_dev)) {
1336 mlx5_esw_for_each_ec_vf_vport(peer_esw, i, peer_vport,
1337 mlx5_core_max_ec_vfs(peer_dev))
1338 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1339 }
1340
1341 mlx5_esw_for_each_vf_vport(peer_esw, i, peer_vport,
1342 mlx5_core_max_vfs(peer_dev))
1343 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1344
1345 if (mlx5_ecpf_vport_exists(dev: peer_dev)) {
1346 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_ECPF);
1347 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1348 }
1349
1350 if (mlx5_core_is_ecpf_esw_manager(dev: peer_dev)) {
1351 peer_vport = mlx5_eswitch_get_vport(esw: peer_esw, vport_num: MLX5_VPORT_PF);
1352 mlx5_del_flow_rules(fr: flows[peer_vport->index]);
1353 }
1354
1355 kvfree(addr: flows);
1356 esw->fdb_table.offloads.peer_miss_rules[peer_index] = NULL;
1357}
1358
1359static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw)
1360{
1361 struct mlx5_flow_act flow_act = {0};
1362 struct mlx5_flow_destination dest = {};
1363 struct mlx5_flow_handle *flow_rule = NULL;
1364 struct mlx5_flow_spec *spec;
1365 void *headers_c;
1366 void *headers_v;
1367 int err = 0;
1368 u8 *dmac_c;
1369 u8 *dmac_v;
1370
1371 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
1372 if (!spec) {
1373 err = -ENOMEM;
1374 goto out;
1375 }
1376
1377 spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
1378 headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
1379 outer_headers);
1380 dmac_c = MLX5_ADDR_OF(fte_match_param, headers_c,
1381 outer_headers.dmac_47_16);
1382 dmac_c[0] = 0x01;
1383
1384 dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
1385 dest.vport.num = esw->manager_vport;
1386 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
1387
1388 flow_rule = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1389 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1390 if (IS_ERR(ptr: flow_rule)) {
1391 err = PTR_ERR(ptr: flow_rule);
1392 esw_warn(esw->dev, "FDB: Failed to add unicast miss flow rule err %d\n", err);
1393 goto out;
1394 }
1395
1396 esw->fdb_table.offloads.miss_rule_uni = flow_rule;
1397
1398 headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1399 outer_headers);
1400 dmac_v = MLX5_ADDR_OF(fte_match_param, headers_v,
1401 outer_headers.dmac_47_16);
1402 dmac_v[0] = 0x01;
1403 flow_rule = mlx5_add_flow_rules(ft: mlx5_eswitch_get_slow_fdb(esw),
1404 spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1405 if (IS_ERR(ptr: flow_rule)) {
1406 err = PTR_ERR(ptr: flow_rule);
1407 esw_warn(esw->dev, "FDB: Failed to add multicast miss flow rule err %d\n", err);
1408 mlx5_del_flow_rules(fr: esw->fdb_table.offloads.miss_rule_uni);
1409 goto out;
1410 }
1411
1412 esw->fdb_table.offloads.miss_rule_multi = flow_rule;
1413
1414out:
1415 kvfree(addr: spec);
1416 return err;
1417}
1418
1419struct mlx5_flow_handle *
1420esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag)
1421{
1422 struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, };
1423 struct mlx5_flow_table *ft = esw->offloads.ft_offloads_restore;
1424 struct mlx5_flow_context *flow_context;
1425 struct mlx5_flow_handle *flow_rule;
1426 struct mlx5_flow_destination dest;
1427 struct mlx5_flow_spec *spec;
1428 void *misc;
1429
1430 if (!mlx5_eswitch_reg_c1_loopback_supported(esw))
1431 return ERR_PTR(error: -EOPNOTSUPP);
1432
1433 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
1434 if (!spec)
1435 return ERR_PTR(error: -ENOMEM);
1436
1437 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
1438 misc_parameters_2);
1439 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
1440 ESW_REG_C0_USER_DATA_METADATA_MASK);
1441 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
1442 misc_parameters_2);
1443 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, tag);
1444 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2;
1445 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
1446 MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
1447 flow_act.modify_hdr = esw->offloads.restore_copy_hdr_id;
1448
1449 flow_context = &spec->flow_context;
1450 flow_context->flags |= FLOW_CONTEXT_HAS_TAG;
1451 flow_context->flow_tag = tag;
1452 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
1453 dest.ft = esw->offloads.ft_offloads;
1454
1455 flow_rule = mlx5_add_flow_rules(ft, spec, flow_act: &flow_act, dest: &dest, num_dest: 1);
1456 kvfree(addr: spec);
1457
1458 if (IS_ERR(ptr: flow_rule))
1459 esw_warn(esw->dev,
1460 "Failed to create restore rule for tag: %d, err(%d)\n",
1461 tag, (int)PTR_ERR(flow_rule));
1462
1463 return flow_rule;
1464}
1465
1466#define MAX_PF_SQ 256
1467#define MAX_SQ_NVPORTS 32
1468
1469void
1470mlx5_esw_set_flow_group_source_port(struct mlx5_eswitch *esw,
1471 u32 *flow_group_in,
1472 int match_params)
1473{
1474 void *match_criteria = MLX5_ADDR_OF(create_flow_group_in,
1475 flow_group_in,
1476 match_criteria);
1477
1478 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
1479 MLX5_SET(create_flow_group_in, flow_group_in,
1480 match_criteria_enable,
1481 MLX5_MATCH_MISC_PARAMETERS_2 | match_params);
1482
1483 MLX5_SET(fte_match_param, match_criteria,
1484 misc_parameters_2.metadata_reg_c_0,
1485 mlx5_eswitch_get_vport_metadata_mask());
1486 } else {
1487 MLX5_SET(create_flow_group_in, flow_group_in,
1488 match_criteria_enable,
1489 MLX5_MATCH_MISC_PARAMETERS | match_params);
1490
1491 MLX5_SET_TO_ONES(fte_match_param, match_criteria,
1492 misc_parameters.source_port);
1493 }
1494}
1495
1496#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
1497static void esw_vport_tbl_put(struct mlx5_eswitch *esw)
1498{
1499 struct mlx5_vport_tbl_attr attr;
1500 struct mlx5_vport *vport;
1501 unsigned long i;
1502
1503 attr.chain = 0;
1504 attr.prio = 1;
1505 mlx5_esw_for_each_vport(esw, i, vport) {
1506 attr.vport = vport->vport;
1507 attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns;
1508 mlx5_esw_vporttbl_put(esw, attr: &attr);
1509 }
1510}
1511
1512static int esw_vport_tbl_get(struct mlx5_eswitch *esw)
1513{
1514 struct mlx5_vport_tbl_attr attr;
1515 struct mlx5_flow_table *fdb;
1516 struct mlx5_vport *vport;
1517 unsigned long i;
1518
1519 attr.chain = 0;
1520 attr.prio = 1;
1521 mlx5_esw_for_each_vport(esw, i, vport) {
1522 attr.vport = vport->vport;
1523 attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns;
1524 fdb = mlx5_esw_vporttbl_get(esw, attr: &attr);
1525 if (IS_ERR(ptr: fdb))
1526 goto out;
1527 }
1528 return 0;
1529
1530out:
1531 esw_vport_tbl_put(esw);
1532 return PTR_ERR(ptr: fdb);
1533}
1534
1535#define fdb_modify_header_fwd_to_table_supported(esw) \
1536 (MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_modify_header_fwd_to_table))
1537static void esw_init_chains_offload_flags(struct mlx5_eswitch *esw, u32 *flags)
1538{
1539 struct mlx5_core_dev *dev = esw->dev;
1540
1541 if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ignore_flow_level))
1542 *flags |= MLX5_CHAINS_IGNORE_FLOW_LEVEL_SUPPORTED;
1543
1544 if (!MLX5_CAP_ESW_FLOWTABLE(dev, multi_fdb_encap) &&
1545 esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) {
1546 *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED;
1547 esw_warn(dev, "Tc chains and priorities offload aren't supported, update firmware if needed\n");
1548 } else if (!mlx5_eswitch_reg_c1_loopback_enabled(esw)) {
1549 *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED;
1550 esw_warn(dev, "Tc chains and priorities offload aren't supported\n");
1551 } else if (!fdb_modify_header_fwd_to_table_supported(esw)) {
1552 /* Disabled when ttl workaround is needed, e.g
1553 * when ESWITCH_IPV4_TTL_MODIFY_ENABLE = true in mlxconfig
1554 */
1555 esw_warn(dev,
1556 "Tc chains and priorities offload aren't supported, check firmware version, or mlxconfig settings\n");
1557 *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED;
1558 } else {
1559 *flags |= MLX5_CHAINS_AND_PRIOS_SUPPORTED;
1560 esw_info(dev, "Supported tc chains and prios offload\n");
1561 }
1562
1563 if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE)
1564 *flags |= MLX5_CHAINS_FT_TUNNEL_SUPPORTED;
1565}
1566
1567static int
1568esw_chains_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *miss_fdb)
1569{
1570 struct mlx5_core_dev *dev = esw->dev;
1571 struct mlx5_flow_table *nf_ft, *ft;
1572 struct mlx5_chains_attr attr = {};
1573 struct mlx5_fs_chains *chains;
1574 int err;
1575
1576 esw_init_chains_offload_flags(esw, flags: &attr.flags);
1577 attr.ns = MLX5_FLOW_NAMESPACE_FDB;
1578 attr.max_grp_num = esw->params.large_group_num;
1579 attr.default_ft = miss_fdb;
1580 attr.mapping = esw->offloads.reg_c0_obj_pool;
1581 attr.fs_base_prio = FDB_BYPASS_PATH;
1582
1583 chains = mlx5_chains_create(dev, attr: &attr);
1584 if (IS_ERR(ptr: chains)) {
1585 err = PTR_ERR(ptr: chains);
1586 esw_warn(dev, "Failed to create fdb chains err(%d)\n", err);
1587 return err;
1588 }
1589 mlx5_chains_print_info(chains);
1590
1591 esw->fdb_table.offloads.esw_chains_priv = chains;
1592
1593 /* Create tc_end_ft which is the always created ft chain */
1594 nf_ft = mlx5_chains_get_table(chains, chain: mlx5_chains_get_nf_ft_chain(chains),
1595 prio: 1, level: 0);
1596 if (IS_ERR(ptr: nf_ft)) {
1597 err = PTR_ERR(ptr: nf_ft);
1598 goto nf_ft_err;
1599 }
1600
1601 /* Always open the root for fast path */
1602 ft = mlx5_chains_get_table(chains, chain: 0, prio: 1, level: 0);
1603 if (IS_ERR(ptr: ft)) {
1604 err = PTR_ERR(ptr: ft);
1605 goto level_0_err;
1606 }
1607
1608 /* Open level 1 for split fdb rules now if prios isn't supported */
1609 if (!mlx5_chains_prios_supported(chains)) {
1610 err = esw_vport_tbl_get(esw);
1611 if (err)
1612 goto level_1_err;
1613 }
1614
1615 mlx5_chains_set_end_ft(chains, ft: nf_ft);
1616
1617 return 0;
1618
1619level_1_err:
1620 mlx5_chains_put_table(chains, chain: 0, prio: 1, level: 0);
1621level_0_err:
1622 mlx5_chains_put_table(chains, chain: mlx5_chains_get_nf_ft_chain(chains), prio: 1, level: 0);
1623nf_ft_err:
1624 mlx5_chains_destroy(chains);
1625 esw->fdb_table.offloads.esw_chains_priv = NULL;
1626
1627 return err;
1628}
1629
1630static void
1631esw_chains_destroy(struct mlx5_eswitch *esw, struct mlx5_fs_chains *chains)
1632{
1633 if (!mlx5_chains_prios_supported(chains))
1634 esw_vport_tbl_put(esw);
1635 mlx5_chains_put_table(chains, chain: 0, prio: 1, level: 0);
1636 mlx5_chains_put_table(chains, chain: mlx5_chains_get_nf_ft_chain(chains), prio: 1, level: 0);
1637 mlx5_chains_destroy(chains);
1638}
1639
1640#else /* CONFIG_MLX5_CLS_ACT */
1641
1642static int
1643esw_chains_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *miss_fdb)
1644{ return 0; }
1645
1646static void
1647esw_chains_destroy(struct mlx5_eswitch *esw, struct mlx5_fs_chains *chains)
1648{}
1649
1650#endif
1651
1652static int
1653esw_create_send_to_vport_group(struct mlx5_eswitch *esw,
1654 struct mlx5_flow_table *fdb,
1655 u32 *flow_group_in,
1656 int *ix)
1657{
1658 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1659 struct mlx5_flow_group *g;
1660 void *match_criteria;
1661 int count, err = 0;
1662
1663 memset(flow_group_in, 0, inlen);
1664
1665 mlx5_esw_set_flow_group_source_port(esw, flow_group_in, match_params: MLX5_MATCH_MISC_PARAMETERS);
1666
1667 match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
1668 MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_sqn);
1669
1670 if (!mlx5_eswitch_vport_match_metadata_enabled(esw) &&
1671 MLX5_CAP_ESW(esw->dev, merged_eswitch)) {
1672 MLX5_SET_TO_ONES(fte_match_param, match_criteria,
1673 misc_parameters.source_eswitch_owner_vhca_id);
1674 MLX5_SET(create_flow_group_in, flow_group_in,
1675 source_eswitch_owner_vhca_id_valid, 1);
1676 }
1677
1678 /* See comment at table_size calculation */
1679 count = MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ);
1680 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
1681 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, *ix + count - 1);
1682 *ix += count;
1683
1684 g = mlx5_create_flow_group(ft: fdb, in: flow_group_in);
1685 if (IS_ERR(ptr: g)) {
1686 err = PTR_ERR(ptr: g);
1687 esw_warn(esw->dev, "Failed to create send-to-vport flow group err(%d)\n", err);
1688 goto out;
1689 }
1690 esw->fdb_table.offloads.send_to_vport_grp = g;
1691
1692out:
1693 return err;
1694}
1695
1696static int
1697esw_create_meta_send_to_vport_group(struct mlx5_eswitch *esw,
1698 struct mlx5_flow_table *fdb,
1699 u32 *flow_group_in,
1700 int *ix)
1701{
1702 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1703 struct mlx5_flow_group *g;
1704 void *match_criteria;
1705 int err = 0;
1706
1707 if (!esw_src_port_rewrite_supported(esw))
1708 return 0;
1709
1710 memset(flow_group_in, 0, inlen);
1711
1712 MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
1713 MLX5_MATCH_MISC_PARAMETERS_2);
1714
1715 match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
1716
1717 MLX5_SET(fte_match_param, match_criteria,
1718 misc_parameters_2.metadata_reg_c_0,
1719 mlx5_eswitch_get_vport_metadata_mask());
1720 MLX5_SET(fte_match_param, match_criteria,
1721 misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK);
1722
1723 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix);
1724 MLX5_SET(create_flow_group_in, flow_group_in,
1725 end_flow_index, *ix + esw->total_vports - 1);
1726 *ix += esw->total_vports;
1727
1728 g = mlx5_create_flow_group(ft: fdb, in: flow_group_in);
1729 if (IS_ERR(ptr: g)) {
1730 err = PTR_ERR(ptr: g);
1731 esw_warn(esw->dev,
1732 "Failed to create send-to-vport meta flow group err(%d)\n", err);
1733 goto send_vport_meta_err;
1734 }
1735 esw->fdb_table.offloads.send_to_vport_meta_grp = g;
1736
1737 return 0;
1738
1739send_vport_meta_err:
1740 return err;
1741}
1742
1743static int
1744esw_create_peer_esw_miss_group(struct mlx5_eswitch *esw,
1745 struct mlx5_flow_table *fdb,
1746 u32 *flow_group_in,
1747 int *ix)
1748{
1749 int max_peer_ports = (esw->total_vports - 1) * (MLX5_MAX_PORTS - 1);
1750 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1751 struct mlx5_flow_group *g;
1752 void *match_criteria;
1753 int err = 0;
1754
1755 if (!MLX5_CAP_ESW(esw->dev, merged_eswitch))
1756 return 0;
1757
1758 memset(flow_group_in, 0, inlen);
1759
1760 mlx5_esw_set_flow_group_source_port(esw, flow_group_in, match_params: 0);
1761
1762 if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) {
1763 match_criteria = MLX5_ADDR_OF(create_flow_group_in,
1764 flow_group_in,
1765 match_criteria);
1766
1767 MLX5_SET_TO_ONES(fte_match_param, match_criteria,
1768 misc_parameters.source_eswitch_owner_vhca_id);
1769
1770 MLX5_SET(create_flow_group_in, flow_group_in,
1771 source_eswitch_owner_vhca_id_valid, 1);
1772 }
1773
1774 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix);
1775 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index,
1776 *ix + max_peer_ports);
1777 *ix += max_peer_ports + 1;
1778
1779 g = mlx5_create_flow_group(ft: fdb, in: flow_group_in);
1780 if (IS_ERR(ptr: g)) {
1781 err = PTR_ERR(ptr: g);
1782 esw_warn(esw->dev, "Failed to create peer miss flow group err(%d)\n", err);
1783 goto out;
1784 }
1785 esw->fdb_table.offloads.peer_miss_grp = g;
1786
1787out:
1788 return err;
1789}
1790
1791static int
1792esw_create_miss_group(struct mlx5_eswitch *esw,
1793 struct mlx5_flow_table *fdb,
1794 u32 *flow_group_in,
1795 int *ix)
1796{
1797 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1798 struct mlx5_flow_group *g;
1799 void *match_criteria;
1800 int err = 0;
1801 u8 *dmac;
1802
1803 memset(flow_group_in, 0, inlen);
1804
1805 MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
1806 MLX5_MATCH_OUTER_HEADERS);
1807 match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in,
1808 match_criteria);
1809 dmac = MLX5_ADDR_OF(fte_match_param, match_criteria,
1810 outer_headers.dmac_47_16);
1811 dmac[0] = 0x01;
1812
1813 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix);
1814 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index,
1815 *ix + MLX5_ESW_MISS_FLOWS);
1816
1817 g = mlx5_create_flow_group(ft: fdb, in: flow_group_in);
1818 if (IS_ERR(ptr: g)) {
1819 err = PTR_ERR(ptr: g);
1820 esw_warn(esw->dev, "Failed to create miss flow group err(%d)\n", err);
1821 goto miss_err;
1822 }
1823 esw->fdb_table.offloads.miss_grp = g;
1824
1825 err = esw_add_fdb_miss_rule(esw);
1826 if (err)
1827 goto miss_rule_err;
1828
1829 return 0;
1830
1831miss_rule_err:
1832 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.miss_grp);
1833miss_err:
1834 return err;
1835}
1836
1837static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw)
1838{
1839 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
1840 struct mlx5_flow_table_attr ft_attr = {};
1841 struct mlx5_core_dev *dev = esw->dev;
1842 struct mlx5_flow_namespace *root_ns;
1843 struct mlx5_flow_table *fdb = NULL;
1844 int table_size, ix = 0, err = 0;
1845 u32 flags = 0, *flow_group_in;
1846
1847 esw_debug(esw->dev, "Create offloads FDB Tables\n");
1848
1849 flow_group_in = kvzalloc(inlen, GFP_KERNEL);
1850 if (!flow_group_in)
1851 return -ENOMEM;
1852
1853 root_ns = mlx5_get_flow_namespace(dev, type: MLX5_FLOW_NAMESPACE_FDB);
1854 if (!root_ns) {
1855 esw_warn(dev, "Failed to get FDB flow namespace\n");
1856 err = -EOPNOTSUPP;
1857 goto ns_err;
1858 }
1859 esw->fdb_table.offloads.ns = root_ns;
1860 err = mlx5_flow_namespace_set_mode(ns: root_ns,
1861 mode: esw->dev->priv.steering->mode);
1862 if (err) {
1863 esw_warn(dev, "Failed to set FDB namespace steering mode\n");
1864 goto ns_err;
1865 }
1866
1867 /* To be strictly correct:
1868 * MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ)
1869 * should be:
1870 * esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ +
1871 * peer_esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ
1872 * but as the peer device might not be in switchdev mode it's not
1873 * possible. We use the fact that by default FW sets max vfs and max sfs
1874 * to the same value on both devices. If it needs to be changed in the future note
1875 * the peer miss group should also be created based on the number of
1876 * total vports of the peer (currently is also uses esw->total_vports).
1877 */
1878 table_size = MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ) +
1879 esw->total_vports * MLX5_MAX_PORTS + MLX5_ESW_MISS_FLOWS;
1880
1881 /* create the slow path fdb with encap set, so further table instances
1882 * can be created at run time while VFs are probed if the FW allows that.
1883 */
1884 if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE)
1885 flags |= (MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT |
1886 MLX5_FLOW_TABLE_TUNNEL_EN_DECAP);
1887
1888 ft_attr.flags = flags;
1889 ft_attr.max_fte = table_size;
1890 ft_attr.prio = FDB_SLOW_PATH;
1891
1892 fdb = mlx5_create_flow_table(ns: root_ns, ft_attr: &ft_attr);
1893 if (IS_ERR(ptr: fdb)) {
1894 err = PTR_ERR(ptr: fdb);
1895 esw_warn(dev, "Failed to create slow path FDB Table err %d\n", err);
1896 goto slow_fdb_err;
1897 }
1898 esw->fdb_table.offloads.slow_fdb = fdb;
1899
1900 /* Create empty TC-miss managed table. This allows plugging in following
1901 * priorities without directly exposing their level 0 table to
1902 * eswitch_offloads and passing it as miss_fdb to following call to
1903 * esw_chains_create().
1904 */
1905 memset(&ft_attr, 0, sizeof(ft_attr));
1906 ft_attr.prio = FDB_TC_MISS;
1907 esw->fdb_table.offloads.tc_miss_table = mlx5_create_flow_table(ns: root_ns, ft_attr: &ft_attr);
1908 if (IS_ERR(ptr: esw->fdb_table.offloads.tc_miss_table)) {
1909 err = PTR_ERR(ptr: esw->fdb_table.offloads.tc_miss_table);
1910 esw_warn(dev, "Failed to create TC miss FDB Table err %d\n", err);
1911 goto tc_miss_table_err;
1912 }
1913
1914 err = esw_chains_create(esw, miss_fdb: esw->fdb_table.offloads.tc_miss_table);
1915 if (err) {
1916 esw_warn(dev, "Failed to open fdb chains err(%d)\n", err);
1917 goto fdb_chains_err;
1918 }
1919
1920 err = esw_create_send_to_vport_group(esw, fdb, flow_group_in, ix: &ix);
1921 if (err)
1922 goto send_vport_err;
1923
1924 err = esw_create_meta_send_to_vport_group(esw, fdb, flow_group_in, ix: &ix);
1925 if (err)
1926 goto send_vport_meta_err;
1927
1928 err = esw_create_peer_esw_miss_group(esw, fdb, flow_group_in, ix: &ix);
1929 if (err)
1930 goto peer_miss_err;
1931
1932 err = esw_create_miss_group(esw, fdb, flow_group_in, ix: &ix);
1933 if (err)
1934 goto miss_err;
1935
1936 kvfree(addr: flow_group_in);
1937 return 0;
1938
1939miss_err:
1940 if (MLX5_CAP_ESW(esw->dev, merged_eswitch))
1941 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.peer_miss_grp);
1942peer_miss_err:
1943 if (esw->fdb_table.offloads.send_to_vport_meta_grp)
1944 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.send_to_vport_meta_grp);
1945send_vport_meta_err:
1946 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.send_to_vport_grp);
1947send_vport_err:
1948 esw_chains_destroy(esw, esw_chains(esw));
1949fdb_chains_err:
1950 mlx5_destroy_flow_table(ft: esw->fdb_table.offloads.tc_miss_table);
1951tc_miss_table_err:
1952 mlx5_destroy_flow_table(ft: mlx5_eswitch_get_slow_fdb(esw));
1953slow_fdb_err:
1954 /* Holds true only as long as DMFS is the default */
1955 mlx5_flow_namespace_set_mode(ns: root_ns, mode: MLX5_FLOW_STEERING_MODE_DMFS);
1956ns_err:
1957 kvfree(addr: flow_group_in);
1958 return err;
1959}
1960
1961static void esw_destroy_offloads_fdb_tables(struct mlx5_eswitch *esw)
1962{
1963 if (!mlx5_eswitch_get_slow_fdb(esw))
1964 return;
1965
1966 esw_debug(esw->dev, "Destroy offloads FDB Tables\n");
1967 mlx5_del_flow_rules(fr: esw->fdb_table.offloads.miss_rule_multi);
1968 mlx5_del_flow_rules(fr: esw->fdb_table.offloads.miss_rule_uni);
1969 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.send_to_vport_grp);
1970 if (esw->fdb_table.offloads.send_to_vport_meta_grp)
1971 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.send_to_vport_meta_grp);
1972 if (MLX5_CAP_ESW(esw->dev, merged_eswitch))
1973 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.peer_miss_grp);
1974 mlx5_destroy_flow_group(fg: esw->fdb_table.offloads.miss_grp);
1975
1976 esw_chains_destroy(esw, esw_chains(esw));
1977
1978 mlx5_destroy_flow_table(ft: esw->fdb_table.offloads.tc_miss_table);
1979 mlx5_destroy_flow_table(ft: mlx5_eswitch_get_slow_fdb(esw));
1980 /* Holds true only as long as DMFS is the default */
1981 mlx5_flow_namespace_set_mode(ns: esw->fdb_table.offloads.ns,
1982 mode: MLX5_FLOW_STEERING_MODE_DMFS);
1983}
1984
1985static int esw_get_nr_ft_offloads_steering_src_ports(struct mlx5_eswitch *esw)
1986{
1987 int nvports;
1988
1989 nvports = esw->total_vports + MLX5_ESW_MISS_FLOWS;
1990 if (mlx5e_tc_int_port_supported(esw))
1991 nvports += MLX5E_TC_MAX_INT_PORT_NUM;
1992
1993 return nvports;
1994}
1995
1996static int esw_create_offloads_table(struct mlx5_eswitch *esw)
1997{
1998 struct mlx5_flow_table_attr ft_attr = {};
1999 struct mlx5_core_dev *dev = esw->dev;
2000 struct mlx5_flow_table *ft_offloads;
2001 struct mlx5_flow_namespace *ns;
2002 int err = 0;
2003
2004 ns = mlx5_get_flow_namespace(dev, type: MLX5_FLOW_NAMESPACE_OFFLOADS);
2005 if (!ns) {
2006 esw_warn(esw->dev, "Failed to get offloads flow namespace\n");
2007 return -EOPNOTSUPP;
2008 }
2009
2010 ft_attr.max_fte = esw_get_nr_ft_offloads_steering_src_ports(esw) +
2011 MLX5_ESW_FT_OFFLOADS_DROP_RULE;
2012 ft_attr.prio = 1;
2013
2014 ft_offloads = mlx5_create_flow_table(ns, ft_attr: &ft_attr);
2015 if (IS_ERR(ptr: ft_offloads)) {
2016 err = PTR_ERR(ptr: ft_offloads);
2017 esw_warn(esw->dev, "Failed to create offloads table, err %d\n", err);
2018 return err;
2019 }
2020
2021 esw->offloads.ft_offloads = ft_offloads;
2022 return 0;
2023}
2024
2025static void esw_destroy_offloads_table(struct mlx5_eswitch *esw)
2026{
2027 struct mlx5_esw_offload *offloads = &esw->offloads;
2028
2029 mlx5_destroy_flow_table(ft: offloads->ft_offloads);
2030}
2031
2032static int esw_create_vport_rx_group(struct mlx5_eswitch *esw)
2033{
2034 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
2035 struct mlx5_flow_group *g;
2036 u32 *flow_group_in;
2037 int nvports;
2038 int err = 0;
2039
2040 nvports = esw_get_nr_ft_offloads_steering_src_ports(esw);
2041 flow_group_in = kvzalloc(inlen, GFP_KERNEL);
2042 if (!flow_group_in)
2043 return -ENOMEM;
2044
2045 mlx5_esw_set_flow_group_source_port(esw, flow_group_in, match_params: 0);
2046
2047 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
2048 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, nvports - 1);
2049
2050 g = mlx5_create_flow_group(ft: esw->offloads.ft_offloads, in: flow_group_in);
2051
2052 if (IS_ERR(ptr: g)) {
2053 err = PTR_ERR(ptr: g);
2054 mlx5_core_warn(esw->dev, "Failed to create vport rx group err %d\n", err);
2055 goto out;
2056 }
2057
2058 esw->offloads.vport_rx_group = g;
2059out:
2060 kvfree(addr: flow_group_in);
2061 return err;
2062}
2063
2064static void esw_destroy_vport_rx_group(struct mlx5_eswitch *esw)
2065{
2066 mlx5_destroy_flow_group(fg: esw->offloads.vport_rx_group);
2067}
2068
2069static int esw_create_vport_rx_drop_rule_index(struct mlx5_eswitch *esw)
2070{
2071 /* ft_offloads table is enlarged by MLX5_ESW_FT_OFFLOADS_DROP_RULE (1)
2072 * for the drop rule, which is placed at the end of the table.
2073 * So return the total of vport and int_port as rule index.
2074 */
2075 return esw_get_nr_ft_offloads_steering_src_ports(esw);
2076}
2077
2078static int esw_create_vport_rx_drop_group(struct mlx5_eswitch *esw)
2079{
2080 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
2081 struct mlx5_flow_group *g;
2082 u32 *flow_group_in;
2083 int flow_index;
2084 int err = 0;
2085
2086 flow_index = esw_create_vport_rx_drop_rule_index(esw);
2087
2088 flow_group_in = kvzalloc(inlen, GFP_KERNEL);
2089 if (!flow_group_in)
2090 return -ENOMEM;
2091
2092 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, flow_index);
2093 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, flow_index);
2094
2095 g = mlx5_create_flow_group(ft: esw->offloads.ft_offloads, in: flow_group_in);
2096
2097 if (IS_ERR(ptr: g)) {
2098 err = PTR_ERR(ptr: g);
2099 mlx5_core_warn(esw->dev, "Failed to create vport rx drop group err %d\n", err);
2100 goto out;
2101 }
2102
2103 esw->offloads.vport_rx_drop_group = g;
2104out:
2105 kvfree(addr: flow_group_in);
2106 return err;
2107}
2108
2109static void esw_destroy_vport_rx_drop_group(struct mlx5_eswitch *esw)
2110{
2111 if (esw->offloads.vport_rx_drop_group)
2112 mlx5_destroy_flow_group(fg: esw->offloads.vport_rx_drop_group);
2113}
2114
2115void
2116mlx5_esw_set_spec_source_port(struct mlx5_eswitch *esw,
2117 u16 vport,
2118 struct mlx5_flow_spec *spec)
2119{
2120 void *misc;
2121
2122 if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
2123 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2);
2124 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
2125 mlx5_eswitch_get_vport_metadata_for_match(esw, vport));
2126
2127 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2);
2128 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
2129 mlx5_eswitch_get_vport_metadata_mask());
2130
2131 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2;
2132 } else {
2133 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
2134 MLX5_SET(fte_match_set_misc, misc, source_port, vport);
2135
2136 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
2137 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
2138
2139 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
2140 }
2141}
2142
2143struct mlx5_flow_handle *
2144mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, u16 vport,
2145 struct mlx5_flow_destination *dest)
2146{
2147 struct mlx5_flow_act flow_act = {0};
2148 struct mlx5_flow_handle *flow_rule;
2149 struct mlx5_flow_spec *spec;
2150
2151 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
2152 if (!spec) {
2153 flow_rule = ERR_PTR(error: -ENOMEM);
2154 goto out;
2155 }
2156
2157 mlx5_esw_set_spec_source_port(esw, vport, spec);
2158
2159 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
2160 flow_rule = mlx5_add_flow_rules(ft: esw->offloads.ft_offloads, spec,
2161 flow_act: &flow_act, dest, num_dest: 1);
2162 if (IS_ERR(ptr: flow_rule)) {
2163 esw_warn(esw->dev,
2164 "fs offloads: Failed to add vport rx rule err %pe\n",
2165 flow_rule);
2166 goto out;
2167 }
2168
2169out:
2170 kvfree(addr: spec);
2171 return flow_rule;
2172}
2173
2174static int esw_create_vport_rx_drop_rule(struct mlx5_eswitch *esw)
2175{
2176 struct mlx5_flow_act flow_act = {};
2177 struct mlx5_flow_handle *flow_rule;
2178
2179 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP;
2180 flow_rule = mlx5_add_flow_rules(ft: esw->offloads.ft_offloads, NULL,
2181 flow_act: &flow_act, NULL, num_dest: 0);
2182 if (IS_ERR(ptr: flow_rule)) {
2183 esw_warn(esw->dev,
2184 "fs offloads: Failed to add vport rx drop rule err %pe\n",
2185 flow_rule);
2186 return PTR_ERR(ptr: flow_rule);
2187 }
2188
2189 esw->offloads.vport_rx_drop_rule = flow_rule;
2190
2191 return 0;
2192}
2193
2194static void esw_destroy_vport_rx_drop_rule(struct mlx5_eswitch *esw)
2195{
2196 if (esw->offloads.vport_rx_drop_rule)
2197 mlx5_del_flow_rules(fr: esw->offloads.vport_rx_drop_rule);
2198}
2199
2200static int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, u8 *mode)
2201{
2202 u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2;
2203 struct mlx5_core_dev *dev = esw->dev;
2204 struct mlx5_vport *vport;
2205 unsigned long i;
2206
2207 if (!MLX5_CAP_GEN(dev, vport_group_manager))
2208 return -EOPNOTSUPP;
2209
2210 if (!mlx5_esw_is_fdb_created(esw))
2211 return -EOPNOTSUPP;
2212
2213 switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
2214 case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
2215 mlx5_mode = MLX5_INLINE_MODE_NONE;
2216 goto out;
2217 case MLX5_CAP_INLINE_MODE_L2:
2218 mlx5_mode = MLX5_INLINE_MODE_L2;
2219 goto out;
2220 case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
2221 goto query_vports;
2222 }
2223
2224query_vports:
2225 mlx5_query_nic_vport_min_inline(mdev: dev, vport: esw->first_host_vport, min_inline: &prev_mlx5_mode);
2226 mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) {
2227 mlx5_query_nic_vport_min_inline(mdev: dev, vport: vport->vport, min_inline: &mlx5_mode);
2228 if (prev_mlx5_mode != mlx5_mode)
2229 return -EINVAL;
2230 prev_mlx5_mode = mlx5_mode;
2231 }
2232
2233out:
2234 *mode = mlx5_mode;
2235 return 0;
2236}
2237
2238static void esw_destroy_restore_table(struct mlx5_eswitch *esw)
2239{
2240 struct mlx5_esw_offload *offloads = &esw->offloads;
2241
2242 if (!mlx5_eswitch_reg_c1_loopback_supported(esw))
2243 return;
2244
2245 mlx5_modify_header_dealloc(dev: esw->dev, modify_hdr: offloads->restore_copy_hdr_id);
2246 mlx5_destroy_flow_group(fg: offloads->restore_group);
2247 mlx5_destroy_flow_table(ft: offloads->ft_offloads_restore);
2248}
2249
2250static int esw_create_restore_table(struct mlx5_eswitch *esw)
2251{
2252 u8 modact[MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)] = {};
2253 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
2254 struct mlx5_flow_table_attr ft_attr = {};
2255 struct mlx5_core_dev *dev = esw->dev;
2256 struct mlx5_flow_namespace *ns;
2257 struct mlx5_modify_hdr *mod_hdr;
2258 void *match_criteria, *misc;
2259 struct mlx5_flow_table *ft;
2260 struct mlx5_flow_group *g;
2261 u32 *flow_group_in;
2262 int err = 0;
2263
2264 if (!mlx5_eswitch_reg_c1_loopback_supported(esw))
2265 return 0;
2266
2267 ns = mlx5_get_flow_namespace(dev, type: MLX5_FLOW_NAMESPACE_OFFLOADS);
2268 if (!ns) {
2269 esw_warn(esw->dev, "Failed to get offloads flow namespace\n");
2270 return -EOPNOTSUPP;
2271 }
2272
2273 flow_group_in = kvzalloc(inlen, GFP_KERNEL);
2274 if (!flow_group_in) {
2275 err = -ENOMEM;
2276 goto out_free;
2277 }
2278
2279 ft_attr.max_fte = 1 << ESW_REG_C0_USER_DATA_METADATA_BITS;
2280 ft = mlx5_create_flow_table(ns, ft_attr: &ft_attr);
2281 if (IS_ERR(ptr: ft)) {
2282 err = PTR_ERR(ptr: ft);
2283 esw_warn(esw->dev, "Failed to create restore table, err %d\n",
2284 err);
2285 goto out_free;
2286 }
2287
2288 match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in,
2289 match_criteria);
2290 misc = MLX5_ADDR_OF(fte_match_param, match_criteria,
2291 misc_parameters_2);
2292
2293 MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0,
2294 ESW_REG_C0_USER_DATA_METADATA_MASK);
2295 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
2296 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index,
2297 ft_attr.max_fte - 1);
2298 MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
2299 MLX5_MATCH_MISC_PARAMETERS_2);
2300 g = mlx5_create_flow_group(ft, in: flow_group_in);
2301 if (IS_ERR(ptr: g)) {
2302 err = PTR_ERR(ptr: g);
2303 esw_warn(dev, "Failed to create restore flow group, err: %d\n",
2304 err);
2305 goto err_group;
2306 }
2307
2308 MLX5_SET(copy_action_in, modact, action_type, MLX5_ACTION_TYPE_COPY);
2309 MLX5_SET(copy_action_in, modact, src_field,
2310 MLX5_ACTION_IN_FIELD_METADATA_REG_C_1);
2311 MLX5_SET(copy_action_in, modact, dst_field,
2312 MLX5_ACTION_IN_FIELD_METADATA_REG_B);
2313 mod_hdr = mlx5_modify_header_alloc(dev: esw->dev,
2314 ns_type: MLX5_FLOW_NAMESPACE_KERNEL, num_actions: 1,
2315 modify_actions: modact);
2316 if (IS_ERR(ptr: mod_hdr)) {
2317 err = PTR_ERR(ptr: mod_hdr);
2318 esw_warn(dev, "Failed to create restore mod header, err: %d\n",
2319 err);
2320 goto err_mod_hdr;
2321 }
2322
2323 esw->offloads.ft_offloads_restore = ft;
2324 esw->offloads.restore_group = g;
2325 esw->offloads.restore_copy_hdr_id = mod_hdr;
2326
2327 kvfree(addr: flow_group_in);
2328
2329 return 0;
2330
2331err_mod_hdr:
2332 mlx5_destroy_flow_group(fg: g);
2333err_group:
2334 mlx5_destroy_flow_table(ft);
2335out_free:
2336 kvfree(addr: flow_group_in);
2337
2338 return err;
2339}
2340
2341static void esw_mode_change(struct mlx5_eswitch *esw, u16 mode)
2342{
2343 mlx5_devcom_comp_lock(devcom: esw->dev->priv.hca_devcom_comp);
2344 if (esw->dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_IB_ADEV ||
2345 mlx5_core_mp_enabled(dev: esw->dev)) {
2346 esw->mode = mode;
2347 mlx5_rescan_drivers_locked(dev: esw->dev);
2348 mlx5_devcom_comp_unlock(devcom: esw->dev->priv.hca_devcom_comp);
2349 return;
2350 }
2351
2352 esw->dev->priv.flags |= MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
2353 mlx5_rescan_drivers_locked(dev: esw->dev);
2354 esw->mode = mode;
2355 esw->dev->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
2356 mlx5_rescan_drivers_locked(dev: esw->dev);
2357 mlx5_devcom_comp_unlock(devcom: esw->dev->priv.hca_devcom_comp);
2358}
2359
2360static void mlx5_esw_fdb_drop_destroy(struct mlx5_eswitch *esw)
2361{
2362 if (!esw->fdb_table.offloads.drop_root)
2363 return;
2364
2365 esw_debug(esw->dev, "Destroying FDB drop root table %#x fc %#x\n",
2366 esw->fdb_table.offloads.drop_root->id,
2367 esw->fdb_table.offloads.drop_root_fc->id);
2368 mlx5_del_flow_rules(fr: esw->fdb_table.offloads.drop_root_rule);
2369 /* Don't free flow counter here, can be reused on a later activation */
2370 mlx5_destroy_flow_table(ft: esw->fdb_table.offloads.drop_root);
2371 esw->fdb_table.offloads.drop_root_rule = NULL;
2372 esw->fdb_table.offloads.drop_root = NULL;
2373}
2374
2375static int mlx5_esw_fdb_drop_create(struct mlx5_eswitch *esw)
2376{
2377 struct mlx5_flow_destination drop_fc_dst = {};
2378 struct mlx5_flow_table_attr ft_attr = {};
2379 struct mlx5_flow_destination *dst = NULL;
2380 struct mlx5_core_dev *dev = esw->dev;
2381 struct mlx5_flow_namespace *root_ns;
2382 struct mlx5_flow_act flow_act = {};
2383 struct mlx5_flow_handle *flow_rule;
2384 struct mlx5_flow_table *table;
2385 int err = 0, dst_num = 0;
2386
2387 if (esw->fdb_table.offloads.drop_root)
2388 return 0;
2389
2390 root_ns = esw->fdb_table.offloads.ns;
2391
2392 ft_attr.prio = FDB_DROP_ROOT;
2393 ft_attr.max_fte = 1;
2394 ft_attr.autogroup.max_num_groups = 1;
2395 table = mlx5_create_auto_grouped_flow_table(ns: root_ns, ft_attr: &ft_attr);
2396 if (IS_ERR(ptr: table)) {
2397 esw_warn(dev, "Failed to create fdb drop root table, err %pe\n",
2398 table);
2399 return PTR_ERR(ptr: table);
2400 }
2401
2402 /* Drop FC reusable, create once on first deactivation of FDB */
2403 if (!esw->fdb_table.offloads.drop_root_fc) {
2404 struct mlx5_fc *counter = mlx5_fc_create(dev, aging: 0);
2405
2406 err = PTR_ERR_OR_ZERO(ptr: counter);
2407 if (err)
2408 esw_warn(esw->dev, "create fdb drop fc err %d\n", err);
2409 else
2410 esw->fdb_table.offloads.drop_root_fc = counter;
2411 }
2412
2413 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP;
2414
2415 if (esw->fdb_table.offloads.drop_root_fc) {
2416 flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
2417 drop_fc_dst.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
2418 drop_fc_dst.counter = esw->fdb_table.offloads.drop_root_fc;
2419 dst = &drop_fc_dst;
2420 dst_num++;
2421 }
2422
2423 flow_rule = mlx5_add_flow_rules(ft: table, NULL, flow_act: &flow_act, dest: dst, num_dest: dst_num);
2424 err = PTR_ERR_OR_ZERO(ptr: flow_rule);
2425 if (err) {
2426 esw_warn(esw->dev,
2427 "fs offloads: Failed to add vport rx drop rule err %d\n",
2428 err);
2429 goto err_flow_rule;
2430 }
2431
2432 esw->fdb_table.offloads.drop_root = table;
2433 esw->fdb_table.offloads.drop_root_rule = flow_rule;
2434 esw_debug(esw->dev, "Created FDB drop root table %#x fc %#x\n",
2435 table->id, dst ? dst->counter->id : 0);
2436 return 0;
2437
2438err_flow_rule:
2439 /* no need to free drop fc, esw_offloads_steering_cleanup will do it */
2440 mlx5_destroy_flow_table(ft: table);
2441 return err;
2442}
2443
2444static void mlx5_esw_fdb_active(struct mlx5_eswitch *esw)
2445{
2446 struct mlx5_vport *vport;
2447 unsigned long i;
2448
2449 mlx5_esw_fdb_drop_destroy(esw);
2450 mlx5_mpfs_enable(dev: esw->dev);
2451
2452 mlx5_esw_for_each_vf_vport(esw, i, vport, U16_MAX) {
2453 if (!vport->adjacent)
2454 continue;
2455 esw_debug(esw->dev, "Connecting vport %d to eswitch\n",
2456 vport->vport);
2457 mlx5_esw_adj_vport_modify(dev: esw->dev, vport: vport->vport, connect: true);
2458 }
2459
2460 esw->offloads_inactive = false;
2461 esw_warn(esw->dev, "MPFS/FDB active\n");
2462}
2463
2464static void mlx5_esw_fdb_inactive(struct mlx5_eswitch *esw)
2465{
2466 struct mlx5_vport *vport;
2467 unsigned long i;
2468
2469 mlx5_mpfs_disable(dev: esw->dev);
2470 mlx5_esw_fdb_drop_create(esw);
2471
2472 mlx5_esw_for_each_vf_vport(esw, i, vport, U16_MAX) {
2473 if (!vport->adjacent)
2474 continue;
2475 esw_debug(esw->dev, "Disconnecting vport %u from eswitch\n",
2476 vport->vport);
2477
2478 mlx5_esw_adj_vport_modify(dev: esw->dev, vport: vport->vport, connect: false);
2479 }
2480
2481 esw->offloads_inactive = true;
2482 esw_warn(esw->dev, "MPFS/FDB inactive\n");
2483}
2484
2485static int esw_offloads_start(struct mlx5_eswitch *esw,
2486 struct netlink_ext_ack *extack)
2487{
2488 int err;
2489
2490 esw_mode_change(esw, mode: MLX5_ESWITCH_OFFLOADS);
2491 err = mlx5_eswitch_enable_locked(esw, num_vfs: esw->dev->priv.sriov.num_vfs);
2492 if (err) {
2493 NL_SET_ERR_MSG_MOD(extack,
2494 "Failed setting eswitch to offloads");
2495 esw_mode_change(esw, mode: MLX5_ESWITCH_LEGACY);
2496 return err;
2497 }
2498 if (esw->offloads.inline_mode == MLX5_INLINE_MODE_NONE) {
2499 if (mlx5_eswitch_inline_mode_get(esw,
2500 mode: &esw->offloads.inline_mode)) {
2501 esw->offloads.inline_mode = MLX5_INLINE_MODE_L2;
2502 NL_SET_ERR_MSG_MOD(extack,
2503 "Inline mode is different between vports");
2504 }
2505 }
2506 return 0;
2507}
2508
2509void mlx5_esw_offloads_rep_remove(struct mlx5_eswitch *esw,
2510 const struct mlx5_vport *vport)
2511{
2512 struct mlx5_eswitch_rep *rep = xa_load(&esw->offloads.vport_reps,
2513 index: vport->vport);
2514
2515 if (!rep)
2516 return;
2517 xa_erase(&esw->offloads.vport_reps, index: vport->vport);
2518 kfree(objp: rep);
2519}
2520
2521int mlx5_esw_offloads_rep_add(struct mlx5_eswitch *esw,
2522 const struct mlx5_vport *vport)
2523{
2524 struct mlx5_eswitch_rep *rep;
2525 int rep_type;
2526 int err;
2527
2528 rep = kzalloc(sizeof(*rep), GFP_KERNEL);
2529 if (!rep)
2530 return -ENOMEM;
2531
2532 rep->vport = vport->vport;
2533 rep->vport_index = vport->index;
2534 for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {
2535 if (!esw->offloads.rep_ops[rep_type]) {
2536 atomic_set(v: &rep->rep_data[rep_type].state,
2537 i: REP_UNREGISTERED);
2538 continue;
2539 }
2540 /* Dynamic/delegated vports add their representors after
2541 * mlx5_eswitch_register_vport_reps, so mark them as registered
2542 * for them to be loaded later with the others.
2543 */
2544 rep->esw = esw;
2545 atomic_set(v: &rep->rep_data[rep_type].state, i: REP_REGISTERED);
2546 }
2547 err = xa_insert(xa: &esw->offloads.vport_reps, index: rep->vport, entry: rep, GFP_KERNEL);
2548 if (err)
2549 goto insert_err;
2550
2551 return 0;
2552
2553insert_err:
2554 kfree(objp: rep);
2555 return err;
2556}
2557
2558static void mlx5_esw_offloads_rep_cleanup(struct mlx5_eswitch *esw,
2559 struct mlx5_eswitch_rep *rep)
2560{
2561 xa_erase(&esw->offloads.vport_reps, index: rep->vport);
2562 kfree(objp: rep);
2563}
2564
2565static void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw)
2566{
2567 struct mlx5_eswitch_rep *rep;
2568 unsigned long i;
2569
2570 mlx5_esw_for_each_rep(esw, i, rep)
2571 mlx5_esw_offloads_rep_cleanup(esw, rep);
2572 xa_destroy(&esw->offloads.vport_reps);
2573}
2574
2575static int esw_offloads_init_reps(struct mlx5_eswitch *esw)
2576{
2577 struct mlx5_vport *vport;
2578 unsigned long i;
2579 int err;
2580
2581 xa_init(xa: &esw->offloads.vport_reps);
2582
2583 mlx5_esw_for_each_vport(esw, i, vport) {
2584 err = mlx5_esw_offloads_rep_add(esw, vport);
2585 if (err)
2586 goto err;
2587 }
2588 return 0;
2589
2590err:
2591 esw_offloads_cleanup_reps(esw);
2592 return err;
2593}
2594
2595static int esw_port_metadata_set(struct devlink *devlink, u32 id,
2596 struct devlink_param_gset_ctx *ctx,
2597 struct netlink_ext_ack *extack)
2598{
2599 struct mlx5_core_dev *dev = devlink_priv(devlink);
2600 struct mlx5_eswitch *esw = dev->priv.eswitch;
2601 int err = 0;
2602
2603 down_write(sem: &esw->mode_lock);
2604 if (mlx5_esw_is_fdb_created(esw)) {
2605 err = -EBUSY;
2606 goto done;
2607 }
2608 if (!mlx5_esw_vport_match_metadata_supported(esw)) {
2609 err = -EOPNOTSUPP;
2610 goto done;
2611 }
2612 if (ctx->val.vbool)
2613 esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
2614 else
2615 esw->flags &= ~MLX5_ESWITCH_VPORT_MATCH_METADATA;
2616done:
2617 up_write(sem: &esw->mode_lock);
2618 return err;
2619}
2620
2621static int esw_port_metadata_get(struct devlink *devlink, u32 id,
2622 struct devlink_param_gset_ctx *ctx,
2623 struct netlink_ext_ack *extack)
2624{
2625 struct mlx5_core_dev *dev = devlink_priv(devlink);
2626
2627 ctx->val.vbool = mlx5_eswitch_vport_match_metadata_enabled(esw: dev->priv.eswitch);
2628 return 0;
2629}
2630
2631static int esw_port_metadata_validate(struct devlink *devlink, u32 id,
2632 union devlink_param_value val,
2633 struct netlink_ext_ack *extack)
2634{
2635 struct mlx5_core_dev *dev = devlink_priv(devlink);
2636 u8 esw_mode;
2637
2638 esw_mode = mlx5_eswitch_mode(dev);
2639 if (esw_mode == MLX5_ESWITCH_OFFLOADS) {
2640 NL_SET_ERR_MSG_MOD(extack,
2641 "E-Switch must either disabled or non switchdev mode");
2642 return -EBUSY;
2643 }
2644 return 0;
2645}
2646
2647static const struct devlink_param esw_devlink_params[] = {
2648 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA,
2649 "esw_port_metadata", DEVLINK_PARAM_TYPE_BOOL,
2650 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
2651 esw_port_metadata_get,
2652 esw_port_metadata_set,
2653 esw_port_metadata_validate),
2654};
2655
2656int esw_offloads_init(struct mlx5_eswitch *esw)
2657{
2658 int err;
2659
2660 err = esw_offloads_init_reps(esw);
2661 if (err)
2662 return err;
2663
2664 if (MLX5_ESWITCH_MANAGER(esw->dev) &&
2665 mlx5_esw_vport_match_metadata_supported(esw))
2666 esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
2667
2668 err = devl_params_register(devlink: priv_to_devlink(priv: esw->dev),
2669 params: esw_devlink_params,
2670 ARRAY_SIZE(esw_devlink_params));
2671 if (err)
2672 goto err_params;
2673
2674 return 0;
2675
2676err_params:
2677 esw_offloads_cleanup_reps(esw);
2678 return err;
2679}
2680
2681void esw_offloads_cleanup(struct mlx5_eswitch *esw)
2682{
2683 devl_params_unregister(devlink: priv_to_devlink(priv: esw->dev),
2684 params: esw_devlink_params,
2685 ARRAY_SIZE(esw_devlink_params));
2686 esw_offloads_cleanup_reps(esw);
2687}
2688
2689static int __esw_offloads_load_rep(struct mlx5_eswitch *esw,
2690 struct mlx5_eswitch_rep *rep, u8 rep_type)
2691{
2692 if (atomic_cmpxchg(v: &rep->rep_data[rep_type].state,
2693 old: REP_REGISTERED, new: REP_LOADED) == REP_REGISTERED)
2694 return esw->offloads.rep_ops[rep_type]->load(esw->dev, rep);
2695
2696 return 0;
2697}
2698
2699static void __esw_offloads_unload_rep(struct mlx5_eswitch *esw,
2700 struct mlx5_eswitch_rep *rep, u8 rep_type)
2701{
2702 if (atomic_cmpxchg(v: &rep->rep_data[rep_type].state,
2703 old: REP_LOADED, new: REP_REGISTERED) == REP_LOADED) {
2704 if (rep_type == REP_ETH)
2705 __esw_offloads_unload_rep(esw, rep, rep_type: REP_IB);
2706 esw->offloads.rep_ops[rep_type]->unload(rep);
2707 }
2708}
2709
2710static void __unload_reps_all_vport(struct mlx5_eswitch *esw, u8 rep_type)
2711{
2712 struct mlx5_eswitch_rep *rep;
2713 unsigned long i;
2714
2715 mlx5_esw_for_each_rep(esw, i, rep)
2716 __esw_offloads_unload_rep(esw, rep, rep_type);
2717}
2718
2719static int mlx5_esw_offloads_rep_load(struct mlx5_eswitch *esw, u16 vport_num)
2720{
2721 struct mlx5_eswitch_rep *rep;
2722 int rep_type;
2723 int err;
2724
2725 rep = mlx5_eswitch_get_rep(esw, vport_num);
2726 for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {
2727 err = __esw_offloads_load_rep(esw, rep, rep_type);
2728 if (err)
2729 goto err_reps;
2730 }
2731
2732 return 0;
2733
2734err_reps:
2735 atomic_set(v: &rep->rep_data[rep_type].state, i: REP_REGISTERED);
2736 for (--rep_type; rep_type >= 0; rep_type--)
2737 __esw_offloads_unload_rep(esw, rep, rep_type);
2738 return err;
2739}
2740
2741static void mlx5_esw_offloads_rep_unload(struct mlx5_eswitch *esw, u16 vport_num)
2742{
2743 struct mlx5_eswitch_rep *rep;
2744 int rep_type;
2745
2746 rep = mlx5_eswitch_get_rep(esw, vport_num);
2747 for (rep_type = NUM_REP_TYPES - 1; rep_type >= 0; rep_type--)
2748 __esw_offloads_unload_rep(esw, rep, rep_type);
2749}
2750
2751int mlx5_esw_offloads_init_pf_vf_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
2752{
2753 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
2754 return 0;
2755
2756 return mlx5_esw_offloads_pf_vf_devlink_port_init(esw, vport);
2757}
2758
2759void mlx5_esw_offloads_cleanup_pf_vf_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
2760{
2761 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
2762 return;
2763
2764 mlx5_esw_offloads_pf_vf_devlink_port_cleanup(esw, vport);
2765}
2766
2767int mlx5_esw_offloads_init_sf_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport,
2768 struct mlx5_devlink_port *dl_port,
2769 u32 controller, u32 sfnum)
2770{
2771 return mlx5_esw_offloads_sf_devlink_port_init(esw, vport, dl_port, controller, sfnum);
2772}
2773
2774void mlx5_esw_offloads_cleanup_sf_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
2775{
2776 mlx5_esw_offloads_sf_devlink_port_cleanup(esw, vport);
2777}
2778
2779int mlx5_esw_offloads_load_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
2780{
2781 int err;
2782
2783 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
2784 return 0;
2785
2786 err = mlx5_esw_offloads_devlink_port_register(esw, vport);
2787 if (err)
2788 return err;
2789
2790 err = mlx5_esw_offloads_rep_load(esw, vport_num: vport->vport);
2791 if (err)
2792 goto load_err;
2793 return err;
2794
2795load_err:
2796 mlx5_esw_offloads_devlink_port_unregister(vport);
2797 return err;
2798}
2799
2800void mlx5_esw_offloads_unload_rep(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
2801{
2802 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
2803 return;
2804
2805 mlx5_esw_offloads_rep_unload(esw, vport_num: vport->vport);
2806
2807 mlx5_esw_offloads_devlink_port_unregister(vport);
2808}
2809
2810static int esw_set_slave_root_fdb(struct mlx5_core_dev *master,
2811 struct mlx5_core_dev *slave)
2812{
2813 u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)] = {};
2814 u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {};
2815 struct mlx5_flow_root_namespace *root;
2816 struct mlx5_flow_namespace *ns;
2817 int err;
2818
2819 MLX5_SET(set_flow_table_root_in, in, opcode,
2820 MLX5_CMD_OP_SET_FLOW_TABLE_ROOT);
2821 MLX5_SET(set_flow_table_root_in, in, table_type,
2822 FS_FT_FDB);
2823
2824 if (master) {
2825 ns = mlx5_get_flow_namespace(dev: master,
2826 type: MLX5_FLOW_NAMESPACE_FDB);
2827 root = find_root(node: &ns->node);
2828 mutex_lock(&root->chain_lock);
2829 MLX5_SET(set_flow_table_root_in, in,
2830 table_eswitch_owner_vhca_id_valid, 1);
2831 MLX5_SET(set_flow_table_root_in, in,
2832 table_eswitch_owner_vhca_id,
2833 MLX5_CAP_GEN(master, vhca_id));
2834 MLX5_SET(set_flow_table_root_in, in, table_id,
2835 root->root_ft->id);
2836 } else {
2837 ns = mlx5_get_flow_namespace(dev: slave,
2838 type: MLX5_FLOW_NAMESPACE_FDB);
2839 root = find_root(node: &ns->node);
2840 mutex_lock(&root->chain_lock);
2841 MLX5_SET(set_flow_table_root_in, in, table_id,
2842 root->root_ft->id);
2843 }
2844
2845 err = mlx5_cmd_exec(dev: slave, in, in_size: sizeof(in), out, out_size: sizeof(out));
2846 mutex_unlock(lock: &root->chain_lock);
2847
2848 return err;
2849}
2850
2851static int __esw_set_master_egress_rule(struct mlx5_core_dev *master,
2852 struct mlx5_core_dev *slave,
2853 struct mlx5_vport *vport,
2854 struct mlx5_flow_table *acl)
2855{
2856 u16 slave_index = MLX5_CAP_GEN(slave, vhca_id);
2857 struct mlx5_flow_handle *flow_rule = NULL;
2858 struct mlx5_flow_destination dest = {};
2859 struct mlx5_flow_act flow_act = {};
2860 struct mlx5_flow_spec *spec;
2861 int err = 0;
2862 void *misc;
2863
2864 spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
2865 if (!spec)
2866 return -ENOMEM;
2867
2868 spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
2869 misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
2870 misc_parameters);
2871 MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_UPLINK);
2872 MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id, slave_index);
2873
2874 misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
2875 MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
2876 MLX5_SET_TO_ONES(fte_match_set_misc, misc,
2877 source_eswitch_owner_vhca_id);
2878
2879 flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
2880 dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
2881 dest.vport.num = slave->priv.eswitch->manager_vport;
2882 dest.vport.vhca_id = MLX5_CAP_GEN(slave, vhca_id);
2883 dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
2884
2885 flow_rule = mlx5_add_flow_rules(ft: acl, spec, flow_act: &flow_act,
2886 dest: &dest, num_dest: 1);
2887 if (IS_ERR(ptr: flow_rule)) {
2888 err = PTR_ERR(ptr: flow_rule);
2889 } else {
2890 err = xa_insert(xa: &vport->egress.offloads.bounce_rules,
2891 index: slave_index, entry: flow_rule, GFP_KERNEL);
2892 if (err)
2893 mlx5_del_flow_rules(fr: flow_rule);
2894 }
2895
2896 kvfree(addr: spec);
2897 return err;
2898}
2899
2900static int esw_master_egress_create_resources(struct mlx5_eswitch *esw,
2901 struct mlx5_flow_namespace *egress_ns,
2902 struct mlx5_vport *vport, size_t count)
2903{
2904 int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
2905 struct mlx5_flow_table_attr ft_attr = {
2906 .max_fte = count, .prio = 0, .level = 0,
2907 };
2908 struct mlx5_flow_table *acl;
2909 struct mlx5_flow_group *g;
2910 void *match_criteria;
2911 u32 *flow_group_in;
2912 int err;
2913
2914 if (vport->egress.acl)
2915 return 0;
2916
2917 flow_group_in = kvzalloc(inlen, GFP_KERNEL);
2918 if (!flow_group_in)
2919 return -ENOMEM;
2920
2921 if (vport->vport || mlx5_core_is_ecpf(dev: esw->dev))
2922 ft_attr.flags = MLX5_FLOW_TABLE_OTHER_VPORT;
2923
2924 acl = mlx5_create_vport_flow_table(ns: egress_ns, ft_attr: &ft_attr, vport: vport->vport);
2925 if (IS_ERR(ptr: acl)) {
2926 err = PTR_ERR(ptr: acl);
2927 goto out;
2928 }
2929
2930 match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in,
2931 match_criteria);
2932 MLX5_SET_TO_ONES(fte_match_param, match_criteria,
2933 misc_parameters.source_port);
2934 MLX5_SET_TO_ONES(fte_match_param, match_criteria,
2935 misc_parameters.source_eswitch_owner_vhca_id);
2936 MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
2937 MLX5_MATCH_MISC_PARAMETERS);
2938
2939 MLX5_SET(create_flow_group_in, flow_group_in,
2940 source_eswitch_owner_vhca_id_valid, 1);
2941 MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
2942 MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, count);
2943
2944 g = mlx5_create_flow_group(ft: acl, in: flow_group_in);
2945 if (IS_ERR(ptr: g)) {
2946 err = PTR_ERR(ptr: g);
2947 goto err_group;
2948 }
2949
2950 vport->egress.acl = acl;
2951 vport->egress.offloads.bounce_grp = g;
2952 vport->egress.type = VPORT_EGRESS_ACL_TYPE_SHARED_FDB;
2953 xa_init_flags(xa: &vport->egress.offloads.bounce_rules, XA_FLAGS_ALLOC);
2954
2955 kvfree(addr: flow_group_in);
2956
2957 return 0;
2958
2959err_group:
2960 mlx5_destroy_flow_table(ft: acl);
2961out:
2962 kvfree(addr: flow_group_in);
2963 return err;
2964}
2965
2966static void esw_master_egress_destroy_resources(struct mlx5_vport *vport)
2967{
2968 if (!xa_empty(xa: &vport->egress.offloads.bounce_rules))
2969 return;
2970 mlx5_destroy_flow_group(fg: vport->egress.offloads.bounce_grp);
2971 vport->egress.offloads.bounce_grp = NULL;
2972 mlx5_destroy_flow_table(ft: vport->egress.acl);
2973 vport->egress.acl = NULL;
2974}
2975
2976static int esw_set_master_egress_rule(struct mlx5_core_dev *master,
2977 struct mlx5_core_dev *slave, size_t count)
2978{
2979 struct mlx5_eswitch *esw = master->priv.eswitch;
2980 u16 slave_index = MLX5_CAP_GEN(slave, vhca_id);
2981 struct mlx5_flow_namespace *egress_ns;
2982 struct mlx5_vport *vport;
2983 int err;
2984
2985 vport = mlx5_eswitch_get_vport(esw, vport_num: esw->manager_vport);
2986 if (IS_ERR(ptr: vport))
2987 return PTR_ERR(ptr: vport);
2988
2989 egress_ns = mlx5_get_flow_vport_namespace(dev: master,
2990 type: MLX5_FLOW_NAMESPACE_ESW_EGRESS,
2991 vport_idx: vport->index);
2992 if (!egress_ns)
2993 return -EINVAL;
2994
2995 if (vport->egress.acl && vport->egress.type != VPORT_EGRESS_ACL_TYPE_SHARED_FDB)
2996 return 0;
2997
2998 err = esw_master_egress_create_resources(esw, egress_ns, vport, count);
2999 if (err)
3000 return err;
3001
3002 if (xa_load(&vport->egress.offloads.bounce_rules, index: slave_index))
3003 return -EINVAL;
3004
3005 err = __esw_set_master_egress_rule(master, slave, vport, acl: vport->egress.acl);
3006 if (err)
3007 goto err_rule;
3008
3009 return 0;
3010
3011err_rule:
3012 esw_master_egress_destroy_resources(vport);
3013 return err;
3014}
3015
3016static void esw_unset_master_egress_rule(struct mlx5_core_dev *dev,
3017 struct mlx5_core_dev *slave_dev)
3018{
3019 struct mlx5_vport *vport;
3020
3021 vport = mlx5_eswitch_get_vport(esw: dev->priv.eswitch,
3022 vport_num: dev->priv.eswitch->manager_vport);
3023
3024 esw_acl_egress_ofld_bounce_rule_destroy(vport, MLX5_CAP_GEN(slave_dev, vhca_id));
3025
3026 if (xa_empty(xa: &vport->egress.offloads.bounce_rules)) {
3027 esw_acl_egress_ofld_cleanup(vport);
3028 xa_destroy(&vport->egress.offloads.bounce_rules);
3029 }
3030}
3031
3032int mlx5_eswitch_offloads_single_fdb_add_one(struct mlx5_eswitch *master_esw,
3033 struct mlx5_eswitch *slave_esw, int max_slaves)
3034{
3035 int err;
3036
3037 err = esw_set_slave_root_fdb(master: master_esw->dev,
3038 slave: slave_esw->dev);
3039 if (err)
3040 return err;
3041
3042 err = esw_set_master_egress_rule(master: master_esw->dev,
3043 slave: slave_esw->dev, count: max_slaves);
3044 if (err)
3045 goto err_acl;
3046
3047 return err;
3048
3049err_acl:
3050 esw_set_slave_root_fdb(NULL, slave: slave_esw->dev);
3051 return err;
3052}
3053
3054void mlx5_eswitch_offloads_single_fdb_del_one(struct mlx5_eswitch *master_esw,
3055 struct mlx5_eswitch *slave_esw)
3056{
3057 esw_set_slave_root_fdb(NULL, slave: slave_esw->dev);
3058 esw_unset_master_egress_rule(dev: master_esw->dev, slave_dev: slave_esw->dev);
3059}
3060
3061#define ESW_OFFLOADS_DEVCOM_PAIR (0)
3062#define ESW_OFFLOADS_DEVCOM_UNPAIR (1)
3063
3064static void mlx5_esw_offloads_rep_event_unpair(struct mlx5_eswitch *esw,
3065 struct mlx5_eswitch *peer_esw)
3066{
3067 const struct mlx5_eswitch_rep_ops *ops;
3068 struct mlx5_eswitch_rep *rep;
3069 unsigned long i;
3070 u8 rep_type;
3071
3072 mlx5_esw_for_each_rep(esw, i, rep) {
3073 rep_type = NUM_REP_TYPES;
3074 while (rep_type--) {
3075 ops = esw->offloads.rep_ops[rep_type];
3076 if (atomic_read(v: &rep->rep_data[rep_type].state) == REP_LOADED &&
3077 ops->event)
3078 ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_UNPAIR, peer_esw);
3079 }
3080 }
3081}
3082
3083static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw,
3084 struct mlx5_eswitch *peer_esw)
3085{
3086#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
3087 mlx5e_tc_clean_fdb_peer_flows(esw);
3088#endif
3089 mlx5_esw_offloads_rep_event_unpair(esw, peer_esw);
3090 esw_del_fdb_peer_miss_rules(esw, peer_dev: peer_esw->dev);
3091}
3092
3093static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,
3094 struct mlx5_eswitch *peer_esw)
3095{
3096 const struct mlx5_eswitch_rep_ops *ops;
3097 struct mlx5_eswitch_rep *rep;
3098 unsigned long i;
3099 u8 rep_type;
3100 int err;
3101
3102 err = esw_add_fdb_peer_miss_rules(esw, peer_dev: peer_esw->dev);
3103 if (err)
3104 return err;
3105
3106 mlx5_esw_for_each_rep(esw, i, rep) {
3107 for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {
3108 ops = esw->offloads.rep_ops[rep_type];
3109 if (atomic_read(v: &rep->rep_data[rep_type].state) == REP_LOADED &&
3110 ops->event) {
3111 err = ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_PAIR, peer_esw);
3112 if (err)
3113 goto err_out;
3114 }
3115 }
3116 }
3117
3118 return 0;
3119
3120err_out:
3121 mlx5_esw_offloads_unpair(esw, peer_esw);
3122 return err;
3123}
3124
3125static int mlx5_esw_offloads_set_ns_peer(struct mlx5_eswitch *esw,
3126 struct mlx5_eswitch *peer_esw,
3127 bool pair)
3128{
3129 u16 peer_vhca_id = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
3130 u16 vhca_id = MLX5_CAP_GEN(esw->dev, vhca_id);
3131 struct mlx5_flow_root_namespace *peer_ns;
3132 struct mlx5_flow_root_namespace *ns;
3133 int err;
3134
3135 peer_ns = peer_esw->dev->priv.steering->fdb_root_ns;
3136 ns = esw->dev->priv.steering->fdb_root_ns;
3137
3138 if (pair) {
3139 err = mlx5_flow_namespace_set_peer(ns, peer_ns, peer_vhca_id);
3140 if (err)
3141 return err;
3142
3143 err = mlx5_flow_namespace_set_peer(ns: peer_ns, peer_ns: ns, peer_vhca_id: vhca_id);
3144 if (err) {
3145 mlx5_flow_namespace_set_peer(ns, NULL, peer_vhca_id);
3146 return err;
3147 }
3148 } else {
3149 mlx5_flow_namespace_set_peer(ns, NULL, peer_vhca_id);
3150 mlx5_flow_namespace_set_peer(ns: peer_ns, NULL, peer_vhca_id: vhca_id);
3151 }
3152
3153 return 0;
3154}
3155
3156static int mlx5_esw_offloads_devcom_event(int event,
3157 void *my_data,
3158 void *event_data)
3159{
3160 struct mlx5_eswitch *esw = my_data;
3161 struct mlx5_eswitch *peer_esw = event_data;
3162 u16 esw_i, peer_esw_i;
3163 bool esw_paired;
3164 int err;
3165
3166 peer_esw_i = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
3167 esw_i = MLX5_CAP_GEN(esw->dev, vhca_id);
3168 esw_paired = !!xa_load(&esw->paired, index: peer_esw_i);
3169
3170 switch (event) {
3171 case ESW_OFFLOADS_DEVCOM_PAIR:
3172 if (mlx5_eswitch_vport_match_metadata_enabled(esw) !=
3173 mlx5_eswitch_vport_match_metadata_enabled(esw: peer_esw))
3174 break;
3175
3176 if (esw_paired)
3177 break;
3178
3179 err = mlx5_esw_offloads_set_ns_peer(esw, peer_esw, pair: true);
3180 if (err)
3181 goto err_out;
3182
3183 err = mlx5_esw_offloads_pair(esw, peer_esw);
3184 if (err)
3185 goto err_peer;
3186
3187 err = mlx5_esw_offloads_pair(esw: peer_esw, peer_esw: esw);
3188 if (err)
3189 goto err_pair;
3190
3191 err = xa_insert(xa: &esw->paired, index: peer_esw_i, entry: peer_esw, GFP_KERNEL);
3192 if (err)
3193 goto err_xa;
3194
3195 err = xa_insert(xa: &peer_esw->paired, index: esw_i, entry: esw, GFP_KERNEL);
3196 if (err)
3197 goto err_peer_xa;
3198
3199 esw->num_peers++;
3200 peer_esw->num_peers++;
3201 mlx5_devcom_comp_set_ready(devcom: esw->devcom, ready: true);
3202 break;
3203
3204 case ESW_OFFLOADS_DEVCOM_UNPAIR:
3205 if (!esw_paired)
3206 break;
3207
3208 peer_esw->num_peers--;
3209 esw->num_peers--;
3210 if (!esw->num_peers && !peer_esw->num_peers)
3211 mlx5_devcom_comp_set_ready(devcom: esw->devcom, ready: false);
3212 xa_erase(&peer_esw->paired, index: esw_i);
3213 xa_erase(&esw->paired, index: peer_esw_i);
3214 mlx5_esw_offloads_unpair(esw: peer_esw, peer_esw: esw);
3215 mlx5_esw_offloads_unpair(esw, peer_esw);
3216 mlx5_esw_offloads_set_ns_peer(esw, peer_esw, pair: false);
3217 break;
3218 }
3219
3220 return 0;
3221
3222err_peer_xa:
3223 xa_erase(&esw->paired, index: peer_esw_i);
3224err_xa:
3225 mlx5_esw_offloads_unpair(esw: peer_esw, peer_esw: esw);
3226err_pair:
3227 mlx5_esw_offloads_unpair(esw, peer_esw);
3228err_peer:
3229 mlx5_esw_offloads_set_ns_peer(esw, peer_esw, pair: false);
3230err_out:
3231 mlx5_core_err(esw->dev, "esw offloads devcom event failure, event %u err %d",
3232 event, err);
3233 return err;
3234}
3235
3236void mlx5_esw_offloads_devcom_init(struct mlx5_eswitch *esw,
3237 const struct mlx5_devcom_match_attr *attr)
3238{
3239 int i;
3240
3241 for (i = 0; i < MLX5_MAX_PORTS; i++)
3242 INIT_LIST_HEAD(list: &esw->offloads.peer_flows[i]);
3243 mutex_init(&esw->offloads.peer_mutex);
3244
3245 if (!MLX5_CAP_ESW(esw->dev, merged_eswitch))
3246 return;
3247
3248 if ((MLX5_VPORT_MANAGER(esw->dev) || mlx5_core_is_ecpf_esw_manager(dev: esw->dev)) &&
3249 !mlx5_lag_is_supported(dev: esw->dev))
3250 return;
3251
3252 xa_init(xa: &esw->paired);
3253 esw->num_peers = 0;
3254 esw->devcom = mlx5_devcom_register_component(devc: esw->dev->priv.devc,
3255 id: MLX5_DEVCOM_ESW_OFFLOADS,
3256 attr,
3257 handler: mlx5_esw_offloads_devcom_event,
3258 data: esw);
3259 if (!esw->devcom)
3260 return;
3261
3262 mlx5_devcom_send_event(devcom: esw->devcom,
3263 ESW_OFFLOADS_DEVCOM_PAIR,
3264 ESW_OFFLOADS_DEVCOM_UNPAIR,
3265 event_data: esw);
3266}
3267
3268void mlx5_esw_offloads_devcom_cleanup(struct mlx5_eswitch *esw)
3269{
3270 if (!esw->devcom)
3271 return;
3272
3273 mlx5_devcom_send_event(devcom: esw->devcom,
3274 ESW_OFFLOADS_DEVCOM_UNPAIR,
3275 ESW_OFFLOADS_DEVCOM_UNPAIR,
3276 event_data: esw);
3277
3278 mlx5_devcom_unregister_component(devcom: esw->devcom);
3279 xa_destroy(&esw->paired);
3280 esw->devcom = NULL;
3281}
3282
3283bool mlx5_esw_offloads_devcom_is_ready(struct mlx5_eswitch *esw)
3284{
3285 return mlx5_devcom_comp_is_ready(devcom: esw->devcom);
3286}
3287
3288bool mlx5_esw_vport_match_metadata_supported(const struct mlx5_eswitch *esw)
3289{
3290 if (!MLX5_CAP_ESW(esw->dev, esw_uplink_ingress_acl))
3291 return false;
3292
3293 if (!(MLX5_CAP_ESW_FLOWTABLE(esw->dev, fdb_to_vport_reg_c_id) &
3294 MLX5_FDB_TO_VPORT_REG_C_0))
3295 return false;
3296
3297 return true;
3298}
3299
3300#define MLX5_ESW_METADATA_RSVD_UPLINK 1
3301
3302/* Share the same metadata for uplink's. This is fine because:
3303 * (a) In shared FDB mode (LAG) both uplink's are treated the
3304 * same and tagged with the same metadata.
3305 * (b) In non shared FDB mode, packets from physical port0
3306 * cannot hit eswitch of PF1 and vice versa.
3307 */
3308static u32 mlx5_esw_match_metadata_reserved(struct mlx5_eswitch *esw)
3309{
3310 return MLX5_ESW_METADATA_RSVD_UPLINK;
3311}
3312
3313u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw)
3314{
3315 u32 vport_end_ida = (1 << ESW_VPORT_BITS) - 1;
3316 /* Reserve 0xf for internal port offload */
3317 u32 max_pf_num = (1 << ESW_PFNUM_BITS) - 2;
3318 u32 pf_num;
3319 int id;
3320
3321 /* Only 4 bits of pf_num */
3322 pf_num = mlx5_get_dev_index(dev: esw->dev);
3323 if (pf_num > max_pf_num)
3324 return 0;
3325
3326 /* Metadata is 4 bits of PFNUM and 12 bits of unique id */
3327 /* Use only non-zero vport_id (2-4095) for all PF's */
3328 id = ida_alloc_range(&esw->offloads.vport_metadata_ida,
3329 MLX5_ESW_METADATA_RSVD_UPLINK + 1,
3330 max: vport_end_ida, GFP_KERNEL);
3331 if (id < 0)
3332 return 0;
3333 id = (pf_num << ESW_VPORT_BITS) | id;
3334 return id;
3335}
3336
3337void mlx5_esw_match_metadata_free(struct mlx5_eswitch *esw, u32 metadata)
3338{
3339 u32 vport_bit_mask = (1 << ESW_VPORT_BITS) - 1;
3340
3341 /* Metadata contains only 12 bits of actual ida id */
3342 ida_free(&esw->offloads.vport_metadata_ida, id: metadata & vport_bit_mask);
3343}
3344
3345static int esw_offloads_vport_metadata_setup(struct mlx5_eswitch *esw,
3346 struct mlx5_vport *vport)
3347{
3348 if (vport->vport == MLX5_VPORT_UPLINK)
3349 vport->default_metadata = mlx5_esw_match_metadata_reserved(esw);
3350 else
3351 vport->default_metadata = mlx5_esw_match_metadata_alloc(esw);
3352
3353 vport->metadata = vport->default_metadata;
3354 return vport->metadata ? 0 : -ENOSPC;
3355}
3356
3357static void esw_offloads_vport_metadata_cleanup(struct mlx5_eswitch *esw,
3358 struct mlx5_vport *vport)
3359{
3360 if (!vport->default_metadata)
3361 return;
3362
3363 if (vport->vport == MLX5_VPORT_UPLINK)
3364 return;
3365
3366 WARN_ON(vport->metadata != vport->default_metadata);
3367 mlx5_esw_match_metadata_free(esw, metadata: vport->default_metadata);
3368}
3369
3370static void esw_offloads_metadata_uninit(struct mlx5_eswitch *esw)
3371{
3372 struct mlx5_vport *vport;
3373 unsigned long i;
3374
3375 if (!mlx5_eswitch_vport_match_metadata_enabled(esw))
3376 return;
3377
3378 mlx5_esw_for_each_vport(esw, i, vport)
3379 esw_offloads_vport_metadata_cleanup(esw, vport);
3380}
3381
3382static int esw_offloads_metadata_init(struct mlx5_eswitch *esw)
3383{
3384 struct mlx5_vport *vport;
3385 unsigned long i;
3386 int err;
3387
3388 if (!mlx5_eswitch_vport_match_metadata_enabled(esw))
3389 return 0;
3390
3391 mlx5_esw_for_each_vport(esw, i, vport) {
3392 err = esw_offloads_vport_metadata_setup(esw, vport);
3393 if (err)
3394 goto metadata_err;
3395 }
3396
3397 return 0;
3398
3399metadata_err:
3400 esw_offloads_metadata_uninit(esw);
3401 return err;
3402}
3403
3404int
3405esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
3406 struct mlx5_vport *vport)
3407{
3408 int err;
3409
3410 err = esw_acl_ingress_ofld_setup(esw, vport);
3411 if (err)
3412 return err;
3413
3414 err = esw_acl_egress_ofld_setup(esw, vport);
3415 if (err)
3416 goto egress_err;
3417
3418 return 0;
3419
3420egress_err:
3421 esw_acl_ingress_ofld_cleanup(esw, vport);
3422 return err;
3423}
3424
3425void
3426esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
3427 struct mlx5_vport *vport)
3428{
3429 esw_acl_egress_ofld_cleanup(vport);
3430 esw_acl_ingress_ofld_cleanup(esw, vport);
3431}
3432
3433static int esw_create_offloads_acl_tables(struct mlx5_eswitch *esw)
3434{
3435 struct mlx5_vport *uplink, *manager;
3436 int ret;
3437
3438 uplink = mlx5_eswitch_get_vport(esw, vport_num: MLX5_VPORT_UPLINK);
3439 if (IS_ERR(ptr: uplink))
3440 return PTR_ERR(ptr: uplink);
3441
3442 ret = esw_vport_create_offloads_acl_tables(esw, vport: uplink);
3443 if (ret)
3444 return ret;
3445
3446 manager = mlx5_eswitch_get_vport(esw, vport_num: esw->manager_vport);
3447 if (IS_ERR(ptr: manager)) {
3448 ret = PTR_ERR(ptr: manager);
3449 goto err_manager;
3450 }
3451
3452 ret = esw_vport_create_offloads_acl_tables(esw, vport: manager);
3453 if (ret)
3454 goto err_manager;
3455
3456 return 0;
3457
3458err_manager:
3459 esw_vport_destroy_offloads_acl_tables(esw, vport: uplink);
3460 return ret;
3461}
3462
3463static void esw_destroy_offloads_acl_tables(struct mlx5_eswitch *esw)
3464{
3465 struct mlx5_vport *vport;
3466
3467 vport = mlx5_eswitch_get_vport(esw, vport_num: esw->manager_vport);
3468 if (!IS_ERR(ptr: vport))
3469 esw_vport_destroy_offloads_acl_tables(esw, vport);
3470
3471 vport = mlx5_eswitch_get_vport(esw, vport_num: MLX5_VPORT_UPLINK);
3472 if (!IS_ERR(ptr: vport))
3473 esw_vport_destroy_offloads_acl_tables(esw, vport);
3474}
3475
3476int mlx5_eswitch_reload_ib_reps(struct mlx5_eswitch *esw)
3477{
3478 struct mlx5_eswitch_rep *rep;
3479 unsigned long i;
3480 int ret;
3481
3482 if (!esw || esw->mode != MLX5_ESWITCH_OFFLOADS)
3483 return 0;
3484
3485 rep = mlx5_eswitch_get_rep(esw, vport_num: MLX5_VPORT_UPLINK);
3486 if (atomic_read(v: &rep->rep_data[REP_ETH].state) != REP_LOADED)
3487 return 0;
3488
3489 ret = __esw_offloads_load_rep(esw, rep, rep_type: REP_IB);
3490 if (ret)
3491 return ret;
3492
3493 mlx5_esw_for_each_rep(esw, i, rep) {
3494 if (atomic_read(v: &rep->rep_data[REP_ETH].state) == REP_LOADED)
3495 __esw_offloads_load_rep(esw, rep, rep_type: REP_IB);
3496 }
3497
3498 return 0;
3499}
3500
3501static int esw_offloads_steering_init(struct mlx5_eswitch *esw)
3502{
3503 struct mlx5_esw_indir_table *indir;
3504 int err;
3505
3506 memset(&esw->fdb_table.offloads, 0, sizeof(struct offloads_fdb));
3507 mutex_init(&esw->fdb_table.offloads.vports.lock);
3508 hash_init(esw->fdb_table.offloads.vports.table);
3509 atomic64_set(v: &esw->user_count, i: 0);
3510
3511 indir = mlx5_esw_indir_table_init();
3512 if (IS_ERR(ptr: indir)) {
3513 err = PTR_ERR(ptr: indir);
3514 goto create_indir_err;
3515 }
3516 esw->fdb_table.offloads.indir = indir;
3517
3518 err = esw_create_offloads_acl_tables(esw);
3519 if (err)
3520 goto create_acl_err;
3521
3522 err = esw_create_offloads_table(esw);
3523 if (err)
3524 goto create_offloads_err;
3525
3526 err = esw_create_restore_table(esw);
3527 if (err)
3528 goto create_restore_err;
3529
3530 err = esw_create_offloads_fdb_tables(esw);
3531 if (err)
3532 goto create_fdb_err;
3533
3534 err = esw_create_vport_rx_group(esw);
3535 if (err)
3536 goto create_fg_err;
3537
3538 err = esw_create_vport_rx_drop_group(esw);
3539 if (err)
3540 goto create_rx_drop_fg_err;
3541
3542 err = esw_create_vport_rx_drop_rule(esw);
3543 if (err)
3544 goto create_rx_drop_rule_err;
3545
3546 return 0;
3547
3548create_rx_drop_rule_err:
3549 esw_destroy_vport_rx_drop_group(esw);
3550create_rx_drop_fg_err:
3551 esw_destroy_vport_rx_group(esw);
3552create_fg_err:
3553 esw_destroy_offloads_fdb_tables(esw);
3554create_fdb_err:
3555 esw_destroy_restore_table(esw);
3556create_restore_err:
3557 esw_destroy_offloads_table(esw);
3558create_offloads_err:
3559 esw_destroy_offloads_acl_tables(esw);
3560create_acl_err:
3561 mlx5_esw_indir_table_destroy(indir: esw->fdb_table.offloads.indir);
3562create_indir_err:
3563 mutex_destroy(lock: &esw->fdb_table.offloads.vports.lock);
3564 return err;
3565}
3566
3567static void esw_offloads_steering_cleanup(struct mlx5_eswitch *esw)
3568{
3569 mlx5_esw_fdb_drop_destroy(esw);
3570 if (esw->fdb_table.offloads.drop_root_fc)
3571 mlx5_fc_destroy(dev: esw->dev, counter: esw->fdb_table.offloads.drop_root_fc);
3572 esw->fdb_table.offloads.drop_root_fc = NULL;
3573 esw_destroy_vport_rx_drop_rule(esw);
3574 esw_destroy_vport_rx_drop_group(esw);
3575 esw_destroy_vport_rx_group(esw);
3576 esw_destroy_offloads_fdb_tables(esw);
3577 esw_destroy_restore_table(esw);
3578 esw_destroy_offloads_table(esw);
3579 esw_destroy_offloads_acl_tables(esw);
3580 mlx5_esw_indir_table_destroy(indir: esw->fdb_table.offloads.indir);
3581 mutex_destroy(lock: &esw->fdb_table.offloads.vports.lock);
3582}
3583
3584static void
3585esw_vfs_changed_event_handler(struct mlx5_eswitch *esw, const u32 *out)
3586{
3587 struct devlink *devlink;
3588 bool host_pf_disabled;
3589 u16 new_num_vfs;
3590
3591 new_num_vfs = MLX5_GET(query_esw_functions_out, out,
3592 host_params_context.host_num_of_vfs);
3593 host_pf_disabled = MLX5_GET(query_esw_functions_out, out,
3594 host_params_context.host_pf_disabled);
3595
3596 if (new_num_vfs == esw->esw_funcs.num_vfs || host_pf_disabled)
3597 return;
3598
3599 devlink = priv_to_devlink(priv: esw->dev);
3600 devl_lock(devlink);
3601 /* Number of VFs can only change from "0 to x" or "x to 0". */
3602 if (esw->esw_funcs.num_vfs > 0) {
3603 mlx5_eswitch_unload_vf_vports(esw, num_vfs: esw->esw_funcs.num_vfs);
3604 } else {
3605 int err;
3606
3607 err = mlx5_eswitch_load_vf_vports(esw, num_vfs: new_num_vfs,
3608 enabled_events: MLX5_VPORT_UC_ADDR_CHANGE);
3609 if (err) {
3610 devl_unlock(devlink);
3611 return;
3612 }
3613 }
3614 esw->esw_funcs.num_vfs = new_num_vfs;
3615 devl_unlock(devlink);
3616}
3617
3618static void esw_functions_changed_event_handler(struct work_struct *work)
3619{
3620 struct mlx5_host_work *host_work;
3621 struct mlx5_eswitch *esw;
3622 const u32 *out;
3623
3624 host_work = container_of(work, struct mlx5_host_work, work);
3625 esw = host_work->esw;
3626
3627 out = mlx5_esw_query_functions(dev: esw->dev);
3628 if (IS_ERR(ptr: out))
3629 goto out;
3630
3631 esw_vfs_changed_event_handler(esw, out);
3632 kvfree(addr: out);
3633out:
3634 kfree(objp: host_work);
3635}
3636
3637int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data)
3638{
3639 struct mlx5_esw_functions *esw_funcs;
3640 struct mlx5_host_work *host_work;
3641 struct mlx5_eswitch *esw;
3642
3643 host_work = kzalloc(sizeof(*host_work), GFP_ATOMIC);
3644 if (!host_work)
3645 return NOTIFY_DONE;
3646
3647 esw_funcs = mlx5_nb_cof(nb, struct mlx5_esw_functions, nb);
3648 esw = container_of(esw_funcs, struct mlx5_eswitch, esw_funcs);
3649
3650 host_work->esw = esw;
3651
3652 INIT_WORK(&host_work->work, esw_functions_changed_event_handler);
3653 queue_work(wq: esw->work_queue, work: &host_work->work);
3654
3655 return NOTIFY_OK;
3656}
3657
3658static int mlx5_esw_host_number_init(struct mlx5_eswitch *esw)
3659{
3660 const u32 *query_host_out;
3661
3662 if (!mlx5_core_is_ecpf_esw_manager(dev: esw->dev))
3663 return 0;
3664
3665 query_host_out = mlx5_esw_query_functions(dev: esw->dev);
3666 if (IS_ERR(ptr: query_host_out))
3667 return PTR_ERR(ptr: query_host_out);
3668
3669 /* Mark non local controller with non zero controller number. */
3670 esw->offloads.host_number = MLX5_GET(query_esw_functions_out, query_host_out,
3671 host_params_context.host_number);
3672 kvfree(addr: query_host_out);
3673 return 0;
3674}
3675
3676bool mlx5_esw_offloads_controller_valid(const struct mlx5_eswitch *esw, u32 controller)
3677{
3678 /* Local controller is always valid */
3679 if (controller == 0)
3680 return true;
3681
3682 if (!mlx5_core_is_ecpf_esw_manager(dev: esw->dev))
3683 return false;
3684
3685 /* External host number starts with zero in device */
3686 return (controller == esw->offloads.host_number + 1);
3687}
3688
3689int esw_offloads_enable(struct mlx5_eswitch *esw)
3690{
3691 u8 mapping_id[MLX5_SW_IMAGE_GUID_MAX_BYTES];
3692 struct mapping_ctx *reg_c0_obj_pool;
3693 struct mlx5_vport *vport;
3694 unsigned long i;
3695 u8 id_len;
3696 int err;
3697
3698 mutex_init(&esw->offloads.termtbl_mutex);
3699 mlx5_esw_adjacent_vhcas_setup(esw);
3700
3701 err = mlx5_rdma_enable_roce(dev: esw->dev);
3702 if (err)
3703 goto err_roce;
3704
3705 err = mlx5_esw_host_number_init(esw);
3706 if (err)
3707 goto err_metadata;
3708
3709 err = esw_offloads_metadata_init(esw);
3710 if (err)
3711 goto err_metadata;
3712
3713 err = esw_set_passing_vport_metadata(esw, enable: true);
3714 if (err)
3715 goto err_vport_metadata;
3716
3717 mlx5_query_nic_sw_system_image_guid(mdev: esw->dev, buf: mapping_id, len: &id_len);
3718
3719 reg_c0_obj_pool = mapping_create_for_id(id: mapping_id, id_len,
3720 type: MAPPING_TYPE_CHAIN,
3721 data_size: sizeof(struct mlx5_mapped_obj),
3722 ESW_REG_C0_USER_DATA_METADATA_MASK,
3723 delayed_removal: true);
3724
3725 if (IS_ERR(ptr: reg_c0_obj_pool)) {
3726 err = PTR_ERR(ptr: reg_c0_obj_pool);
3727 goto err_pool;
3728 }
3729 esw->offloads.reg_c0_obj_pool = reg_c0_obj_pool;
3730
3731 err = esw_offloads_steering_init(esw);
3732 if (err)
3733 goto err_steering_init;
3734
3735 if (esw->offloads_inactive)
3736 mlx5_esw_fdb_inactive(esw);
3737 else
3738 mlx5_esw_fdb_active(esw);
3739
3740 /* Representor will control the vport link state */
3741 mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs)
3742 vport->info.link_state = MLX5_VPORT_ADMIN_STATE_DOWN;
3743 if (mlx5_core_ec_sriov_enabled(dev: esw->dev))
3744 mlx5_esw_for_each_ec_vf_vport(esw, i, vport, esw->esw_funcs.num_ec_vfs)
3745 vport->info.link_state = MLX5_VPORT_ADMIN_STATE_DOWN;
3746
3747 /* Uplink vport rep must load first. */
3748 err = mlx5_esw_offloads_rep_load(esw, vport_num: MLX5_VPORT_UPLINK);
3749 if (err)
3750 goto err_uplink;
3751
3752 err = mlx5_eswitch_enable_pf_vf_vports(esw, enabled_events: MLX5_VPORT_UC_ADDR_CHANGE);
3753 if (err)
3754 goto err_vports;
3755
3756 return 0;
3757
3758err_vports:
3759 mlx5_esw_offloads_rep_unload(esw, vport_num: MLX5_VPORT_UPLINK);
3760err_uplink:
3761 esw_offloads_steering_cleanup(esw);
3762err_steering_init:
3763 mapping_destroy(ctx: reg_c0_obj_pool);
3764err_pool:
3765 esw_set_passing_vport_metadata(esw, enable: false);
3766err_vport_metadata:
3767 esw_offloads_metadata_uninit(esw);
3768err_metadata:
3769 mlx5_rdma_disable_roce(dev: esw->dev);
3770err_roce:
3771 mlx5_esw_adjacent_vhcas_cleanup(esw);
3772 mutex_destroy(lock: &esw->offloads.termtbl_mutex);
3773 return err;
3774}
3775
3776static int esw_offloads_stop(struct mlx5_eswitch *esw,
3777 struct netlink_ext_ack *extack)
3778{
3779 int err;
3780
3781 esw_mode_change(esw, mode: MLX5_ESWITCH_LEGACY);
3782
3783 /* If changing from switchdev to legacy mode without sriov enabled,
3784 * no need to create legacy fdb.
3785 */
3786 if (!mlx5_core_is_pf(dev: esw->dev) || !mlx5_sriov_is_enabled(dev: esw->dev))
3787 return 0;
3788
3789 err = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS);
3790 if (err)
3791 NL_SET_ERR_MSG_MOD(extack, "Failed setting eswitch to legacy");
3792
3793 return err;
3794}
3795
3796void esw_offloads_disable(struct mlx5_eswitch *esw)
3797{
3798 mlx5_eswitch_disable_pf_vf_vports(esw);
3799 mlx5_esw_offloads_rep_unload(esw, vport_num: MLX5_VPORT_UPLINK);
3800 esw_set_passing_vport_metadata(esw, enable: false);
3801 esw_offloads_steering_cleanup(esw);
3802 mapping_destroy(ctx: esw->offloads.reg_c0_obj_pool);
3803 esw_offloads_metadata_uninit(esw);
3804 mlx5_rdma_disable_roce(dev: esw->dev);
3805 mlx5_esw_adjacent_vhcas_cleanup(esw);
3806 /* must be done after vhcas cleanup to avoid adjacent vports connect */
3807 if (esw->offloads_inactive)
3808 mlx5_esw_fdb_active(esw); /* legacy mode always active */
3809 mutex_destroy(lock: &esw->offloads.termtbl_mutex);
3810}
3811
3812static int esw_mode_from_devlink(u16 mode, u16 *mlx5_mode)
3813{
3814 switch (mode) {
3815 case DEVLINK_ESWITCH_MODE_LEGACY:
3816 *mlx5_mode = MLX5_ESWITCH_LEGACY;
3817 break;
3818 case DEVLINK_ESWITCH_MODE_SWITCHDEV:
3819 case DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE:
3820 *mlx5_mode = MLX5_ESWITCH_OFFLOADS;
3821 break;
3822 default:
3823 return -EINVAL;
3824 }
3825
3826 return 0;
3827}
3828
3829static int esw_mode_to_devlink(struct mlx5_eswitch *esw, u16 *mode)
3830{
3831 switch (esw->mode) {
3832 case MLX5_ESWITCH_LEGACY:
3833 *mode = DEVLINK_ESWITCH_MODE_LEGACY;
3834 break;
3835 case MLX5_ESWITCH_OFFLOADS:
3836 if (esw->offloads_inactive)
3837 *mode = DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE;
3838 else
3839 *mode = DEVLINK_ESWITCH_MODE_SWITCHDEV;
3840 break;
3841 default:
3842 return -EINVAL;
3843 }
3844
3845 return 0;
3846}
3847
3848static int esw_inline_mode_from_devlink(u8 mode, u8 *mlx5_mode)
3849{
3850 switch (mode) {
3851 case DEVLINK_ESWITCH_INLINE_MODE_NONE:
3852 *mlx5_mode = MLX5_INLINE_MODE_NONE;
3853 break;
3854 case DEVLINK_ESWITCH_INLINE_MODE_LINK:
3855 *mlx5_mode = MLX5_INLINE_MODE_L2;
3856 break;
3857 case DEVLINK_ESWITCH_INLINE_MODE_NETWORK:
3858 *mlx5_mode = MLX5_INLINE_MODE_IP;
3859 break;
3860 case DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT:
3861 *mlx5_mode = MLX5_INLINE_MODE_TCP_UDP;
3862 break;
3863 default:
3864 return -EINVAL;
3865 }
3866
3867 return 0;
3868}
3869
3870static int esw_inline_mode_to_devlink(u8 mlx5_mode, u8 *mode)
3871{
3872 switch (mlx5_mode) {
3873 case MLX5_INLINE_MODE_NONE:
3874 *mode = DEVLINK_ESWITCH_INLINE_MODE_NONE;
3875 break;
3876 case MLX5_INLINE_MODE_L2:
3877 *mode = DEVLINK_ESWITCH_INLINE_MODE_LINK;
3878 break;
3879 case MLX5_INLINE_MODE_IP:
3880 *mode = DEVLINK_ESWITCH_INLINE_MODE_NETWORK;
3881 break;
3882 case MLX5_INLINE_MODE_TCP_UDP:
3883 *mode = DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT;
3884 break;
3885 default:
3886 return -EINVAL;
3887 }
3888
3889 return 0;
3890}
3891
3892int mlx5_eswitch_block_mode(struct mlx5_core_dev *dev)
3893{
3894 struct mlx5_eswitch *esw = dev->priv.eswitch;
3895 int err;
3896
3897 if (!mlx5_esw_allowed(esw))
3898 return 0;
3899
3900 /* Take TC into account */
3901 err = mlx5_esw_try_lock(esw);
3902 if (err < 0)
3903 return err;
3904
3905 esw->offloads.num_block_mode++;
3906 mlx5_esw_unlock(esw);
3907 return 0;
3908}
3909
3910void mlx5_eswitch_unblock_mode(struct mlx5_core_dev *dev)
3911{
3912 struct mlx5_eswitch *esw = dev->priv.eswitch;
3913
3914 if (!mlx5_esw_allowed(esw))
3915 return;
3916
3917 down_write(sem: &esw->mode_lock);
3918 esw->offloads.num_block_mode--;
3919 up_write(sem: &esw->mode_lock);
3920}
3921
3922/* Returns false only when uplink netdev exists and its netns is different from
3923 * devlink's netns. True for all others so entering switchdev mode is allowed.
3924 */
3925static bool mlx5_devlink_netdev_netns_immutable_set(struct devlink *devlink,
3926 bool immutable)
3927{
3928 struct mlx5_core_dev *mdev = devlink_priv(devlink);
3929 struct net_device *netdev;
3930 bool ret;
3931
3932 netdev = mlx5_uplink_netdev_get(mdev);
3933 if (!netdev)
3934 return true;
3935
3936 rtnl_lock();
3937 netdev->netns_immutable = immutable;
3938 ret = net_eq(net1: dev_net(dev: netdev), net2: devlink_net(devlink));
3939 rtnl_unlock();
3940
3941 mlx5_uplink_netdev_put(mdev, netdev);
3942 return ret;
3943}
3944
3945/* Returns true when only changing between active and inactive switchdev mode */
3946static bool mlx5_devlink_switchdev_active_mode_change(struct mlx5_eswitch *esw,
3947 u16 devlink_mode)
3948{
3949 /* current mode is not switchdev */
3950 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
3951 return false;
3952
3953 /* new mode is not switchdev */
3954 if (devlink_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV &&
3955 devlink_mode != DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE)
3956 return false;
3957
3958 /* already inactive: no change in current state */
3959 if (devlink_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE &&
3960 esw->offloads_inactive)
3961 return false;
3962
3963 /* already active: no change in current state */
3964 if (devlink_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV &&
3965 !esw->offloads_inactive)
3966 return false;
3967
3968 down_write(sem: &esw->mode_lock);
3969 esw->offloads_inactive = !esw->offloads_inactive;
3970 esw->eswitch_operation_in_progress = true;
3971 up_write(sem: &esw->mode_lock);
3972
3973 if (esw->offloads_inactive)
3974 mlx5_esw_fdb_inactive(esw);
3975 else
3976 mlx5_esw_fdb_active(esw);
3977
3978 down_write(sem: &esw->mode_lock);
3979 esw->eswitch_operation_in_progress = false;
3980 up_write(sem: &esw->mode_lock);
3981 return true;
3982}
3983
3984#define MLX5_ESW_HOLD_TIMEOUT_MS 7000
3985#define MLX5_ESW_HOLD_RETRY_DELAY_MS 500
3986
3987void mlx5_eswitch_safe_aux_devs_remove(struct mlx5_core_dev *dev)
3988{
3989 unsigned long timeout;
3990 bool hold_esw = true;
3991
3992 /* Wait for any concurrent eswitch mode transition to complete. */
3993 if (!mlx5_esw_hold(dev)) {
3994 timeout = jiffies + msecs_to_jiffies(MLX5_ESW_HOLD_TIMEOUT_MS);
3995 while (!mlx5_esw_hold(dev)) {
3996 if (!time_before(jiffies, timeout)) {
3997 hold_esw = false;
3998 break;
3999 }
4000 msleep(MLX5_ESW_HOLD_RETRY_DELAY_MS);
4001 }
4002 }
4003 if (hold_esw) {
4004 if (mlx5_eswitch_mode(dev) == MLX5_ESWITCH_OFFLOADS)
4005 mlx5_core_reps_aux_devs_remove(dev);
4006 mlx5_esw_release(dev);
4007 }
4008}
4009
4010int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
4011 struct netlink_ext_ack *extack)
4012{
4013 u16 cur_mlx5_mode, mlx5_mode = 0;
4014 struct mlx5_eswitch *esw;
4015 int err = 0;
4016
4017 esw = mlx5_devlink_eswitch_get(devlink);
4018 if (IS_ERR(ptr: esw))
4019 return PTR_ERR(ptr: esw);
4020
4021 if (mlx5_fw_reset_in_progress(dev: esw->dev)) {
4022 NL_SET_ERR_MSG_MOD(extack, "Can't change eswitch mode during firmware reset");
4023 return -EBUSY;
4024 }
4025
4026 if (esw_mode_from_devlink(mode, mlx5_mode: &mlx5_mode))
4027 return -EINVAL;
4028
4029 if (mlx5_mode == MLX5_ESWITCH_OFFLOADS && mlx5_get_sd(dev: esw->dev)) {
4030 NL_SET_ERR_MSG_MOD(extack,
4031 "Can't change E-Switch mode to switchdev when multi-PF netdev (Socket Direct) is configured.");
4032 return -EPERM;
4033 }
4034
4035 /* Avoid try_lock, active/inactive mode change is not restricted */
4036 if (mlx5_devlink_switchdev_active_mode_change(esw, devlink_mode: mode))
4037 return 0;
4038
4039 mlx5_lag_disable_change(dev: esw->dev);
4040 err = mlx5_esw_try_lock(esw);
4041 if (err < 0) {
4042 NL_SET_ERR_MSG_MOD(extack, "Can't change mode, E-Switch is busy");
4043 goto enable_lag;
4044 }
4045 cur_mlx5_mode = err;
4046 err = 0;
4047
4048 if (cur_mlx5_mode == mlx5_mode)
4049 goto unlock;
4050
4051 if (esw->offloads.num_block_mode) {
4052 NL_SET_ERR_MSG_MOD(extack,
4053 "Can't change eswitch mode when IPsec SA and/or policies are configured");
4054 err = -EOPNOTSUPP;
4055 goto unlock;
4056 }
4057
4058 esw->eswitch_operation_in_progress = true;
4059 up_write(sem: &esw->mode_lock);
4060
4061 if (mlx5_mode == MLX5_ESWITCH_OFFLOADS &&
4062 !mlx5_devlink_netdev_netns_immutable_set(devlink, immutable: true)) {
4063 NL_SET_ERR_MSG_MOD(extack,
4064 "Can't change E-Switch mode to switchdev when netdev net namespace has diverged from the devlink's.");
4065 err = -EINVAL;
4066 goto skip;
4067 }
4068
4069 if (mlx5_mode == MLX5_ESWITCH_LEGACY)
4070 esw->dev->priv.flags |= MLX5_PRIV_FLAGS_SWITCH_LEGACY;
4071 mlx5_eswitch_disable_locked(esw);
4072 if (mlx5_mode == MLX5_ESWITCH_OFFLOADS) {
4073 if (mlx5_devlink_trap_get_num_active(dev: esw->dev)) {
4074 NL_SET_ERR_MSG_MOD(extack,
4075 "Can't change mode while devlink traps are active");
4076 err = -EOPNOTSUPP;
4077 goto skip;
4078 }
4079 esw->offloads_inactive =
4080 (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE);
4081 err = esw_offloads_start(esw, extack);
4082 } else if (mlx5_mode == MLX5_ESWITCH_LEGACY) {
4083 err = esw_offloads_stop(esw, extack);
4084 } else {
4085 err = -EINVAL;
4086 }
4087
4088skip:
4089 if (mlx5_mode == MLX5_ESWITCH_OFFLOADS && err)
4090 mlx5_devlink_netdev_netns_immutable_set(devlink, immutable: false);
4091 down_write(sem: &esw->mode_lock);
4092 esw->eswitch_operation_in_progress = false;
4093unlock:
4094 mlx5_esw_unlock(esw);
4095enable_lag:
4096 mlx5_lag_enable_change(dev: esw->dev);
4097 return err;
4098}
4099
4100int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
4101{
4102 struct mlx5_eswitch *esw;
4103
4104 esw = mlx5_devlink_eswitch_get(devlink);
4105 if (IS_ERR(ptr: esw))
4106 return PTR_ERR(ptr: esw);
4107
4108 return esw_mode_to_devlink(esw, mode);
4109}
4110
4111static int mlx5_esw_vports_inline_set(struct mlx5_eswitch *esw, u8 mlx5_mode,
4112 struct netlink_ext_ack *extack)
4113{
4114 struct mlx5_core_dev *dev = esw->dev;
4115 struct mlx5_vport *vport;
4116 u16 err_vport_num = 0;
4117 unsigned long i;
4118 int err = 0;
4119
4120 mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) {
4121 err = mlx5_modify_nic_vport_min_inline(mdev: dev, vport: vport->vport, min_inline: mlx5_mode);
4122 if (err) {
4123 err_vport_num = vport->vport;
4124 NL_SET_ERR_MSG_MOD(extack,
4125 "Failed to set min inline on vport");
4126 goto revert_inline_mode;
4127 }
4128 }
4129 if (mlx5_core_ec_sriov_enabled(dev: esw->dev)) {
4130 mlx5_esw_for_each_ec_vf_vport(esw, i, vport, esw->esw_funcs.num_ec_vfs) {
4131 err = mlx5_modify_nic_vport_min_inline(mdev: dev, vport: vport->vport, min_inline: mlx5_mode);
4132 if (err) {
4133 err_vport_num = vport->vport;
4134 NL_SET_ERR_MSG_MOD(extack,
4135 "Failed to set min inline on vport");
4136 goto revert_ec_vf_inline_mode;
4137 }
4138 }
4139 }
4140 return 0;
4141
4142revert_ec_vf_inline_mode:
4143 mlx5_esw_for_each_ec_vf_vport(esw, i, vport, esw->esw_funcs.num_ec_vfs) {
4144 if (vport->vport == err_vport_num)
4145 break;
4146 mlx5_modify_nic_vport_min_inline(mdev: dev,
4147 vport: vport->vport,
4148 min_inline: esw->offloads.inline_mode);
4149 }
4150revert_inline_mode:
4151 mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) {
4152 if (vport->vport == err_vport_num)
4153 break;
4154 mlx5_modify_nic_vport_min_inline(mdev: dev,
4155 vport: vport->vport,
4156 min_inline: esw->offloads.inline_mode);
4157 }
4158 return err;
4159}
4160
4161int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
4162 struct netlink_ext_ack *extack)
4163{
4164 struct mlx5_core_dev *dev = devlink_priv(devlink);
4165 struct mlx5_eswitch *esw;
4166 u8 mlx5_mode;
4167 int err;
4168
4169 esw = mlx5_devlink_eswitch_get(devlink);
4170 if (IS_ERR(ptr: esw))
4171 return PTR_ERR(ptr: esw);
4172
4173 down_write(sem: &esw->mode_lock);
4174
4175 switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) {
4176 case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
4177 if (mode == DEVLINK_ESWITCH_INLINE_MODE_NONE) {
4178 err = 0;
4179 goto out;
4180 }
4181
4182 fallthrough;
4183 case MLX5_CAP_INLINE_MODE_L2:
4184 NL_SET_ERR_MSG_MOD(extack, "Inline mode can't be set");
4185 err = -EOPNOTSUPP;
4186 goto out;
4187 case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
4188 break;
4189 }
4190
4191 if (atomic64_read(v: &esw->offloads.num_flows) > 0) {
4192 NL_SET_ERR_MSG_MOD(extack,
4193 "Can't set inline mode when flows are configured");
4194 err = -EOPNOTSUPP;
4195 goto out;
4196 }
4197
4198 err = esw_inline_mode_from_devlink(mode, mlx5_mode: &mlx5_mode);
4199 if (err)
4200 goto out;
4201
4202 esw->eswitch_operation_in_progress = true;
4203 up_write(sem: &esw->mode_lock);
4204
4205 err = mlx5_esw_vports_inline_set(esw, mlx5_mode, extack);
4206 if (!err)
4207 esw->offloads.inline_mode = mlx5_mode;
4208
4209 down_write(sem: &esw->mode_lock);
4210 esw->eswitch_operation_in_progress = false;
4211 up_write(sem: &esw->mode_lock);
4212 return 0;
4213
4214out:
4215 up_write(sem: &esw->mode_lock);
4216 return err;
4217}
4218
4219int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
4220{
4221 struct mlx5_eswitch *esw;
4222
4223 esw = mlx5_devlink_eswitch_get(devlink);
4224 if (IS_ERR(ptr: esw))
4225 return PTR_ERR(ptr: esw);
4226
4227 return esw_inline_mode_to_devlink(mlx5_mode: esw->offloads.inline_mode, mode);
4228}
4229
4230bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev, bool from_fdb)
4231{
4232 struct mlx5_eswitch *esw = dev->priv.eswitch;
4233 enum devlink_eswitch_encap_mode encap;
4234 bool allow_tunnel = false;
4235
4236 if (!mlx5_esw_allowed(esw))
4237 return true;
4238
4239 down_write(sem: &esw->mode_lock);
4240 encap = esw->offloads.encap;
4241 if (esw->mode == MLX5_ESWITCH_LEGACY ||
4242 (encap == DEVLINK_ESWITCH_ENCAP_MODE_NONE && !from_fdb)) {
4243 allow_tunnel = true;
4244 esw->offloads.num_block_encap++;
4245 }
4246 up_write(sem: &esw->mode_lock);
4247
4248 return allow_tunnel;
4249}
4250
4251void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev)
4252{
4253 struct mlx5_eswitch *esw = dev->priv.eswitch;
4254
4255 if (!mlx5_esw_allowed(esw))
4256 return;
4257
4258 down_write(sem: &esw->mode_lock);
4259 esw->offloads.num_block_encap--;
4260 up_write(sem: &esw->mode_lock);
4261}
4262
4263int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
4264 enum devlink_eswitch_encap_mode encap,
4265 struct netlink_ext_ack *extack)
4266{
4267 struct mlx5_core_dev *dev = devlink_priv(devlink);
4268 struct mlx5_eswitch *esw;
4269 int err = 0;
4270
4271 esw = mlx5_devlink_eswitch_get(devlink);
4272 if (IS_ERR(ptr: esw))
4273 return PTR_ERR(ptr: esw);
4274
4275 down_write(sem: &esw->mode_lock);
4276
4277 if (encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE &&
4278 (!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, reformat) ||
4279 !MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap))) {
4280 err = -EOPNOTSUPP;
4281 goto unlock;
4282 }
4283
4284 if (encap && encap != DEVLINK_ESWITCH_ENCAP_MODE_BASIC) {
4285 err = -EOPNOTSUPP;
4286 goto unlock;
4287 }
4288
4289 if (esw->mode == MLX5_ESWITCH_LEGACY) {
4290 esw->offloads.encap = encap;
4291 goto unlock;
4292 }
4293
4294 if (esw->offloads.encap == encap)
4295 goto unlock;
4296
4297 if (atomic64_read(v: &esw->offloads.num_flows) > 0) {
4298 NL_SET_ERR_MSG_MOD(extack,
4299 "Can't set encapsulation when flows are configured");
4300 err = -EOPNOTSUPP;
4301 goto unlock;
4302 }
4303
4304 if (esw->offloads.num_block_encap) {
4305 NL_SET_ERR_MSG_MOD(extack,
4306 "Can't set encapsulation when IPsec SA and/or policies are configured");
4307 err = -EOPNOTSUPP;
4308 goto unlock;
4309 }
4310
4311 esw->eswitch_operation_in_progress = true;
4312 up_write(sem: &esw->mode_lock);
4313
4314 esw_destroy_offloads_fdb_tables(esw);
4315
4316 esw->offloads.encap = encap;
4317
4318 err = esw_create_offloads_fdb_tables(esw);
4319
4320 if (err) {
4321 NL_SET_ERR_MSG_MOD(extack,
4322 "Failed re-creating fast FDB table");
4323 esw->offloads.encap = !encap;
4324 (void)esw_create_offloads_fdb_tables(esw);
4325 }
4326
4327 down_write(sem: &esw->mode_lock);
4328 esw->eswitch_operation_in_progress = false;
4329
4330unlock:
4331 up_write(sem: &esw->mode_lock);
4332 return err;
4333}
4334
4335int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
4336 enum devlink_eswitch_encap_mode *encap)
4337{
4338 struct mlx5_eswitch *esw;
4339
4340 esw = mlx5_devlink_eswitch_get(devlink);
4341 if (IS_ERR(ptr: esw))
4342 return PTR_ERR(ptr: esw);
4343
4344 *encap = esw->offloads.encap;
4345 return 0;
4346}
4347
4348static bool
4349mlx5_eswitch_vport_has_rep(const struct mlx5_eswitch *esw, u16 vport_num)
4350{
4351 /* Currently, only ECPF based device has representor for host PF. */
4352 if (vport_num == MLX5_VPORT_PF &&
4353 (!mlx5_core_is_ecpf_esw_manager(dev: esw->dev) ||
4354 !mlx5_esw_host_functions_enabled(dev: esw->dev)))
4355 return false;
4356
4357 if (vport_num == MLX5_VPORT_ECPF &&
4358 !mlx5_ecpf_vport_exists(dev: esw->dev))
4359 return false;
4360
4361 return true;
4362}
4363
4364void mlx5_eswitch_register_vport_reps(struct mlx5_eswitch *esw,
4365 const struct mlx5_eswitch_rep_ops *ops,
4366 u8 rep_type)
4367{
4368 struct mlx5_eswitch_rep_data *rep_data;
4369 struct mlx5_eswitch_rep *rep;
4370 unsigned long i;
4371
4372 esw->offloads.rep_ops[rep_type] = ops;
4373 mlx5_esw_for_each_rep(esw, i, rep) {
4374 if (likely(mlx5_eswitch_vport_has_rep(esw, rep->vport))) {
4375 rep->esw = esw;
4376 rep_data = &rep->rep_data[rep_type];
4377 atomic_set(v: &rep_data->state, i: REP_REGISTERED);
4378 }
4379 }
4380}
4381EXPORT_SYMBOL(mlx5_eswitch_register_vport_reps);
4382
4383void mlx5_eswitch_unregister_vport_reps(struct mlx5_eswitch *esw, u8 rep_type)
4384{
4385 struct mlx5_eswitch_rep *rep;
4386 unsigned long i;
4387
4388 if (esw->mode == MLX5_ESWITCH_OFFLOADS)
4389 __unload_reps_all_vport(esw, rep_type);
4390
4391 mlx5_esw_for_each_rep(esw, i, rep)
4392 atomic_set(v: &rep->rep_data[rep_type].state, i: REP_UNREGISTERED);
4393}
4394EXPORT_SYMBOL(mlx5_eswitch_unregister_vport_reps);
4395
4396void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type)
4397{
4398 struct mlx5_eswitch_rep *rep;
4399
4400 rep = mlx5_eswitch_get_rep(esw, vport_num: MLX5_VPORT_UPLINK);
4401 return rep->rep_data[rep_type].priv;
4402}
4403
4404void *mlx5_eswitch_get_proto_dev(struct mlx5_eswitch *esw,
4405 u16 vport,
4406 u8 rep_type)
4407{
4408 struct mlx5_eswitch_rep *rep;
4409
4410 rep = mlx5_eswitch_get_rep(esw, vport_num: vport);
4411
4412 if (atomic_read(v: &rep->rep_data[rep_type].state) == REP_LOADED &&
4413 esw->offloads.rep_ops[rep_type]->get_proto_dev)
4414 return esw->offloads.rep_ops[rep_type]->get_proto_dev(rep);
4415 return NULL;
4416}
4417EXPORT_SYMBOL(mlx5_eswitch_get_proto_dev);
4418
4419void *mlx5_eswitch_uplink_get_proto_dev(struct mlx5_eswitch *esw, u8 rep_type)
4420{
4421 return mlx5_eswitch_get_proto_dev(esw, MLX5_VPORT_UPLINK, rep_type);
4422}
4423EXPORT_SYMBOL(mlx5_eswitch_uplink_get_proto_dev);
4424
4425struct mlx5_eswitch_rep *mlx5_eswitch_vport_rep(struct mlx5_eswitch *esw,
4426 u16 vport)
4427{
4428 return mlx5_eswitch_get_rep(esw, vport_num: vport);
4429}
4430EXPORT_SYMBOL(mlx5_eswitch_vport_rep);
4431
4432bool mlx5_eswitch_reg_c1_loopback_enabled(const struct mlx5_eswitch *esw)
4433{
4434 return !!(esw->flags & MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED);
4435}
4436EXPORT_SYMBOL(mlx5_eswitch_reg_c1_loopback_enabled);
4437
4438bool mlx5_eswitch_vport_match_metadata_enabled(const struct mlx5_eswitch *esw)
4439{
4440 return !!(esw->flags & MLX5_ESWITCH_VPORT_MATCH_METADATA);
4441}
4442EXPORT_SYMBOL(mlx5_eswitch_vport_match_metadata_enabled);
4443
4444u32 mlx5_eswitch_get_vport_metadata_for_match(struct mlx5_eswitch *esw,
4445 u16 vport_num)
4446{
4447 struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num);
4448
4449 if (WARN_ON_ONCE(IS_ERR(vport)))
4450 return 0;
4451
4452 return vport->metadata << (32 - ESW_SOURCE_PORT_METADATA_BITS);
4453}
4454EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_match);
4455
4456int mlx5_esw_vport_vhca_id_map(struct mlx5_eswitch *esw,
4457 struct mlx5_vport *vport)
4458{
4459 u16 *old_entry, *vhca_map_entry, vhca_id;
4460
4461 if (WARN_ONCE(MLX5_VPORT_INVAL_VHCA_ID(vport),
4462 "vport %d vhca_id is not set", vport->vport)) {
4463 int err;
4464
4465 err = mlx5_vport_get_vhca_id(dev: vport->dev, vport: vport->vport,
4466 vhca_id: &vhca_id);
4467 if (err)
4468 return err;
4469 vport->vhca_id = vhca_id;
4470 }
4471
4472 vhca_id = vport->vhca_id;
4473 vhca_map_entry = kmalloc(sizeof(*vhca_map_entry), GFP_KERNEL);
4474 if (!vhca_map_entry)
4475 return -ENOMEM;
4476
4477 *vhca_map_entry = vport->vport;
4478 old_entry = xa_store(&esw->offloads.vhca_map, index: vhca_id, entry: vhca_map_entry, GFP_KERNEL);
4479 if (xa_is_err(entry: old_entry)) {
4480 kfree(objp: vhca_map_entry);
4481 return xa_err(entry: old_entry);
4482 }
4483 kfree(objp: old_entry);
4484 return 0;
4485}
4486
4487void mlx5_esw_vport_vhca_id_unmap(struct mlx5_eswitch *esw,
4488 struct mlx5_vport *vport)
4489{
4490 u16 *vhca_map_entry;
4491
4492 vhca_map_entry = xa_erase(&esw->offloads.vhca_map, index: vport->vhca_id);
4493 kfree(objp: vhca_map_entry);
4494}
4495
4496int mlx5_eswitch_vhca_id_to_vport(struct mlx5_eswitch *esw, u16 vhca_id, u16 *vport_num)
4497{
4498 u16 *res = xa_load(&esw->offloads.vhca_map, index: vhca_id);
4499
4500 if (!res)
4501 return -ENOENT;
4502
4503 *vport_num = *res;
4504 return 0;
4505}
4506
4507u32 mlx5_eswitch_get_vport_metadata_for_set(struct mlx5_eswitch *esw,
4508 u16 vport_num)
4509{
4510 struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num);
4511
4512 if (WARN_ON_ONCE(IS_ERR(vport)))
4513 return 0;
4514
4515 return vport->metadata;
4516}
4517EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_set);
4518
4519int mlx5_devlink_port_fn_hw_addr_get(struct devlink_port *port,
4520 u8 *hw_addr, int *hw_addr_len,
4521 struct netlink_ext_ack *extack)
4522{
4523 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4524 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4525
4526 mutex_lock(&esw->state_lock);
4527
4528 mlx5_query_nic_vport_mac_address(mdev: esw->dev, vport: vport->vport, other: true,
4529 addr: vport->info.mac);
4530 ether_addr_copy(dst: hw_addr, src: vport->info.mac);
4531 *hw_addr_len = ETH_ALEN;
4532 mutex_unlock(lock: &esw->state_lock);
4533 return 0;
4534}
4535
4536int mlx5_devlink_port_fn_hw_addr_set(struct devlink_port *port,
4537 const u8 *hw_addr, int hw_addr_len,
4538 struct netlink_ext_ack *extack)
4539{
4540 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4541 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4542
4543 return mlx5_eswitch_set_vport_mac(esw, vport: vport->vport, mac: hw_addr);
4544}
4545
4546int mlx5_devlink_port_fn_migratable_get(struct devlink_port *port, bool *is_enabled,
4547 struct netlink_ext_ack *extack)
4548{
4549 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4550 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4551
4552 if (!MLX5_CAP_GEN(esw->dev, migration)) {
4553 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
4554 return -EOPNOTSUPP;
4555 }
4556
4557 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4558 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support VHCA management");
4559 return -EOPNOTSUPP;
4560 }
4561
4562 mutex_lock(&esw->state_lock);
4563 *is_enabled = vport->info.mig_enabled;
4564 mutex_unlock(lock: &esw->state_lock);
4565 return 0;
4566}
4567
4568int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
4569 struct netlink_ext_ack *extack)
4570{
4571 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4572 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4573 int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
4574 void *query_ctx;
4575 void *hca_caps;
4576 int err;
4577
4578 if (!MLX5_CAP_GEN(esw->dev, migration)) {
4579 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
4580 return -EOPNOTSUPP;
4581 }
4582
4583 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4584 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support VHCA management");
4585 return -EOPNOTSUPP;
4586 }
4587
4588 mutex_lock(&esw->state_lock);
4589
4590 if (vport->info.mig_enabled == enable) {
4591 err = 0;
4592 goto out;
4593 }
4594
4595 query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
4596 if (!query_ctx) {
4597 err = -ENOMEM;
4598 goto out;
4599 }
4600
4601 err = mlx5_vport_get_other_func_cap(dev: esw->dev, vport: vport->vport, out: query_ctx,
4602 opmod: MLX5_CAP_GENERAL_2);
4603 if (err) {
4604 NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
4605 goto out_free;
4606 }
4607
4608 hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
4609 MLX5_SET(cmd_hca_cap_2, hca_caps, migratable, enable);
4610
4611 err = mlx5_vport_set_other_func_cap(dev: esw->dev, hca_cap: hca_caps, vport: vport->vport,
4612 opmod: MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE2);
4613 if (err) {
4614 NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA migratable cap");
4615 goto out_free;
4616 }
4617
4618 vport->info.mig_enabled = enable;
4619
4620out_free:
4621 kfree(objp: query_ctx);
4622out:
4623 mutex_unlock(lock: &esw->state_lock);
4624 return err;
4625}
4626
4627int mlx5_devlink_port_fn_roce_get(struct devlink_port *port, bool *is_enabled,
4628 struct netlink_ext_ack *extack)
4629{
4630 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4631 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4632
4633 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4634 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support VHCA management");
4635 return -EOPNOTSUPP;
4636 }
4637
4638 mutex_lock(&esw->state_lock);
4639 *is_enabled = vport->info.roce_enabled;
4640 mutex_unlock(lock: &esw->state_lock);
4641 return 0;
4642}
4643
4644int mlx5_devlink_port_fn_roce_set(struct devlink_port *port, bool enable,
4645 struct netlink_ext_ack *extack)
4646{
4647 struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4648 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4649 int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
4650 u16 vport_num = vport->vport;
4651 void *query_ctx;
4652 void *hca_caps;
4653 int err;
4654
4655 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4656 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support VHCA management");
4657 return -EOPNOTSUPP;
4658 }
4659
4660 mutex_lock(&esw->state_lock);
4661
4662 if (vport->info.roce_enabled == enable) {
4663 err = 0;
4664 goto out;
4665 }
4666
4667 query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
4668 if (!query_ctx) {
4669 err = -ENOMEM;
4670 goto out;
4671 }
4672
4673 err = mlx5_vport_get_other_func_cap(dev: esw->dev, vport: vport_num, out: query_ctx,
4674 opmod: MLX5_CAP_GENERAL);
4675 if (err) {
4676 NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
4677 goto out_free;
4678 }
4679
4680 hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
4681 MLX5_SET(cmd_hca_cap, hca_caps, roce, enable);
4682
4683 err = mlx5_vport_set_other_func_cap(dev: esw->dev, hca_cap: hca_caps, vport: vport_num,
4684 opmod: MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE);
4685 if (err) {
4686 NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA roce cap");
4687 goto out_free;
4688 }
4689
4690 vport->info.roce_enabled = enable;
4691
4692out_free:
4693 kfree(objp: query_ctx);
4694out:
4695 mutex_unlock(lock: &esw->state_lock);
4696 return err;
4697}
4698
4699int
4700mlx5_eswitch_restore_ipsec_rule(struct mlx5_eswitch *esw, struct mlx5_flow_handle *rule,
4701 struct mlx5_esw_flow_attr *esw_attr, int attr_idx)
4702{
4703 struct mlx5_flow_destination new_dest = {};
4704 struct mlx5_flow_destination old_dest = {};
4705
4706 if (!esw_setup_uplink_fwd_ipsec_needed(esw, esw_attr, attr_idx))
4707 return 0;
4708
4709 esw_setup_dest_fwd_ipsec(dest: &old_dest, NULL, esw, esw_attr, attr_idx, dest_idx: 0, pkt_reformat: false);
4710 esw_setup_dest_fwd_vport(dest: &new_dest, NULL, esw, esw_attr, attr_idx, dest_idx: 0, pkt_reformat: false);
4711
4712 return mlx5_modify_rule_destination(handler: rule, new_dest: &new_dest, old_dest: &old_dest);
4713}
4714
4715#ifdef CONFIG_XFRM_OFFLOAD
4716int mlx5_devlink_port_fn_ipsec_crypto_get(struct devlink_port *port, bool *is_enabled,
4717 struct netlink_ext_ack *extack)
4718{
4719 struct mlx5_eswitch *esw;
4720 struct mlx5_vport *vport;
4721 int err = 0;
4722
4723 esw = mlx5_devlink_eswitch_get(devlink: port->devlink);
4724 if (IS_ERR(ptr: esw))
4725 return PTR_ERR(ptr: esw);
4726
4727 if (!mlx5_esw_ipsec_vf_offload_supported(dev: esw->dev)) {
4728 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support IPSec crypto");
4729 return -EOPNOTSUPP;
4730 }
4731
4732 vport = mlx5_devlink_port_vport_get(dl_port: port);
4733
4734 mutex_lock(&esw->state_lock);
4735 if (!vport->enabled) {
4736 err = -EOPNOTSUPP;
4737 goto unlock;
4738 }
4739
4740 *is_enabled = vport->info.ipsec_crypto_enabled;
4741unlock:
4742 mutex_unlock(lock: &esw->state_lock);
4743 return err;
4744}
4745
4746int mlx5_devlink_port_fn_ipsec_crypto_set(struct devlink_port *port, bool enable,
4747 struct netlink_ext_ack *extack)
4748{
4749 struct mlx5_eswitch *esw;
4750 struct mlx5_vport *vport;
4751 u16 vport_num;
4752 int err;
4753
4754 esw = mlx5_devlink_eswitch_get(devlink: port->devlink);
4755 if (IS_ERR(ptr: esw))
4756 return PTR_ERR(ptr: esw);
4757
4758 vport_num = mlx5_esw_devlink_port_index_to_vport_num(dl_port_index: port->index);
4759 err = mlx5_esw_ipsec_vf_crypto_offload_supported(dev: esw->dev, vport_num);
4760 if (err) {
4761 NL_SET_ERR_MSG_MOD(extack,
4762 "Device doesn't support IPsec crypto");
4763 return err;
4764 }
4765
4766 vport = mlx5_devlink_port_vport_get(dl_port: port);
4767
4768 mutex_lock(&esw->state_lock);
4769 if (!vport->enabled) {
4770 err = -EOPNOTSUPP;
4771 NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
4772 goto unlock;
4773 }
4774
4775 if (vport->info.ipsec_crypto_enabled == enable)
4776 goto unlock;
4777
4778 if (!esw->enabled_ipsec_vf_count && esw->dev->num_ipsec_offloads) {
4779 err = -EBUSY;
4780 goto unlock;
4781 }
4782
4783 err = mlx5_esw_ipsec_vf_crypto_offload_set(esw, vport, enable);
4784 if (err) {
4785 NL_SET_ERR_MSG_MOD(extack, "Failed to set IPsec crypto");
4786 goto unlock;
4787 }
4788
4789 vport->info.ipsec_crypto_enabled = enable;
4790 if (enable)
4791 esw->enabled_ipsec_vf_count++;
4792 else
4793 esw->enabled_ipsec_vf_count--;
4794unlock:
4795 mutex_unlock(lock: &esw->state_lock);
4796 return err;
4797}
4798
4799int mlx5_devlink_port_fn_ipsec_packet_get(struct devlink_port *port, bool *is_enabled,
4800 struct netlink_ext_ack *extack)
4801{
4802 struct mlx5_eswitch *esw;
4803 struct mlx5_vport *vport;
4804 int err = 0;
4805
4806 esw = mlx5_devlink_eswitch_get(devlink: port->devlink);
4807 if (IS_ERR(ptr: esw))
4808 return PTR_ERR(ptr: esw);
4809
4810 if (!mlx5_esw_ipsec_vf_offload_supported(dev: esw->dev)) {
4811 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support IPsec packet");
4812 return -EOPNOTSUPP;
4813 }
4814
4815 vport = mlx5_devlink_port_vport_get(dl_port: port);
4816
4817 mutex_lock(&esw->state_lock);
4818 if (!vport->enabled) {
4819 err = -EOPNOTSUPP;
4820 goto unlock;
4821 }
4822
4823 *is_enabled = vport->info.ipsec_packet_enabled;
4824unlock:
4825 mutex_unlock(lock: &esw->state_lock);
4826 return err;
4827}
4828
4829int mlx5_devlink_port_fn_ipsec_packet_set(struct devlink_port *port,
4830 bool enable,
4831 struct netlink_ext_ack *extack)
4832{
4833 struct mlx5_eswitch *esw;
4834 struct mlx5_vport *vport;
4835 u16 vport_num;
4836 int err;
4837
4838 esw = mlx5_devlink_eswitch_get(devlink: port->devlink);
4839 if (IS_ERR(ptr: esw))
4840 return PTR_ERR(ptr: esw);
4841
4842 vport_num = mlx5_esw_devlink_port_index_to_vport_num(dl_port_index: port->index);
4843 err = mlx5_esw_ipsec_vf_packet_offload_supported(dev: esw->dev, vport_num);
4844 if (err) {
4845 NL_SET_ERR_MSG_MOD(extack,
4846 "Device doesn't support IPsec packet mode");
4847 return err;
4848 }
4849
4850 vport = mlx5_devlink_port_vport_get(dl_port: port);
4851 mutex_lock(&esw->state_lock);
4852 if (!vport->enabled) {
4853 err = -EOPNOTSUPP;
4854 NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
4855 goto unlock;
4856 }
4857
4858 if (vport->info.ipsec_packet_enabled == enable)
4859 goto unlock;
4860
4861 if (!esw->enabled_ipsec_vf_count && esw->dev->num_ipsec_offloads) {
4862 err = -EBUSY;
4863 goto unlock;
4864 }
4865
4866 err = mlx5_esw_ipsec_vf_packet_offload_set(esw, vport, enable);
4867 if (err) {
4868 NL_SET_ERR_MSG_MOD(extack,
4869 "Failed to set IPsec packet mode");
4870 goto unlock;
4871 }
4872
4873 vport->info.ipsec_packet_enabled = enable;
4874 if (enable)
4875 esw->enabled_ipsec_vf_count++;
4876 else
4877 esw->enabled_ipsec_vf_count--;
4878unlock:
4879 mutex_unlock(lock: &esw->state_lock);
4880 return err;
4881}
4882#endif /* CONFIG_XFRM_OFFLOAD */
4883
4884int
4885mlx5_devlink_port_fn_max_io_eqs_get(struct devlink_port *port, u32 *max_io_eqs,
4886 struct netlink_ext_ack *extack)
4887{
4888 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4889 int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
4890 u16 vport_num = vport->vport;
4891 struct mlx5_eswitch *esw;
4892 void *query_ctx;
4893 void *hca_caps;
4894 u32 max_eqs;
4895 int err;
4896
4897 esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4898 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4899 NL_SET_ERR_MSG_MOD(extack,
4900 "Device doesn't support VHCA management");
4901 return -EOPNOTSUPP;
4902 }
4903
4904 if (!MLX5_CAP_GEN_2(esw->dev, max_num_eqs_24b)) {
4905 NL_SET_ERR_MSG_MOD(extack,
4906 "Device doesn't support getting the max number of EQs");
4907 return -EOPNOTSUPP;
4908 }
4909
4910 query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
4911 if (!query_ctx)
4912 return -ENOMEM;
4913
4914 mutex_lock(&esw->state_lock);
4915 err = mlx5_vport_get_other_func_cap(dev: esw->dev, vport: vport_num, out: query_ctx,
4916 opmod: MLX5_CAP_GENERAL_2);
4917 if (err) {
4918 NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
4919 goto out;
4920 }
4921
4922 hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
4923 max_eqs = MLX5_GET(cmd_hca_cap_2, hca_caps, max_num_eqs_24b);
4924 if (max_eqs < MLX5_ESW_MAX_CTRL_EQS)
4925 *max_io_eqs = 0;
4926 else
4927 *max_io_eqs = max_eqs - MLX5_ESW_MAX_CTRL_EQS;
4928out:
4929 mutex_unlock(lock: &esw->state_lock);
4930 kfree(objp: query_ctx);
4931 return err;
4932}
4933
4934int
4935mlx5_devlink_port_fn_max_io_eqs_set(struct devlink_port *port, u32 max_io_eqs,
4936 struct netlink_ext_ack *extack)
4937{
4938 struct mlx5_vport *vport = mlx5_devlink_port_vport_get(dl_port: port);
4939 int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
4940 u16 vport_num = vport->vport;
4941 struct mlx5_eswitch *esw;
4942 void *query_ctx;
4943 void *hca_caps;
4944 u16 max_eqs;
4945 int err;
4946
4947 esw = mlx5_devlink_eswitch_nocheck_get(devlink: port->devlink);
4948 if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) {
4949 NL_SET_ERR_MSG_MOD(extack,
4950 "Device doesn't support VHCA management");
4951 return -EOPNOTSUPP;
4952 }
4953
4954 if (!MLX5_CAP_GEN_2(esw->dev, max_num_eqs_24b)) {
4955 NL_SET_ERR_MSG_MOD(extack,
4956 "Device doesn't support changing the max number of EQs");
4957 return -EOPNOTSUPP;
4958 }
4959
4960 if (check_add_overflow(max_io_eqs, MLX5_ESW_MAX_CTRL_EQS, &max_eqs)) {
4961 NL_SET_ERR_MSG_MOD(extack, "Supplied value out of range");
4962 return -EINVAL;
4963 }
4964
4965 query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
4966 if (!query_ctx)
4967 return -ENOMEM;
4968
4969 mutex_lock(&esw->state_lock);
4970 err = mlx5_vport_get_other_func_cap(dev: esw->dev, vport: vport_num, out: query_ctx,
4971 opmod: MLX5_CAP_GENERAL_2);
4972 if (err) {
4973 NL_SET_ERR_MSG_MOD(extack, "Failed getting HCA caps");
4974 goto out;
4975 }
4976
4977 hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
4978 MLX5_SET(cmd_hca_cap_2, hca_caps, max_num_eqs_24b, max_eqs);
4979
4980 if (mlx5_esw_is_sf_vport(esw, vport_num))
4981 MLX5_SET(cmd_hca_cap_2, hca_caps, sf_eq_usage, 1);
4982
4983 err = mlx5_vport_set_other_func_cap(dev: esw->dev, hca_cap: hca_caps, vport: vport_num,
4984 opmod: MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE2);
4985 if (err)
4986 NL_SET_ERR_MSG_MOD(extack, "Failed setting HCA caps");
4987 vport->max_eqs_set = true;
4988out:
4989 mutex_unlock(lock: &esw->state_lock);
4990 kfree(objp: query_ctx);
4991 return err;
4992}
4993
4994int
4995mlx5_devlink_port_fn_max_io_eqs_set_sf_default(struct devlink_port *port,
4996 struct netlink_ext_ack *extack)
4997{
4998 return mlx5_devlink_port_fn_max_io_eqs_set(port,
4999 MLX5_ESW_DEFAULT_SF_COMP_EQS,
5000 extack);
5001}
5002

source code of linux/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c