1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 /* Copyright (c) 2025 NVIDIA Corporation & Affiliates */
3
4 #include <linux/mlx5/vport.h>
5 #include <mlx5_core.h>
6 #include <fs_core.h>
7 #include <fs_cmd.h>
8 #include "fs_hws_pools.h"
9 #include "mlx5hws.h"
10
11 #define MLX5HWS_CTX_MAX_NUM_OF_QUEUES 16
12 #define MLX5HWS_CTX_QUEUE_SIZE 256
13
14 static struct mlx5hws_action *
15 mlx5_fs_create_action_remove_header_vlan(struct mlx5hws_context *ctx);
16 static void
17 mlx5_fs_destroy_pr_pool(struct mlx5_fs_pool *pool, struct xarray *pr_pools,
18 unsigned long index);
19 static void
20 mlx5_fs_destroy_mh_pool(struct mlx5_fs_pool *pool, struct xarray *mh_pools,
21 unsigned long index);
22
mlx5_fs_init_hws_actions_pool(struct mlx5_core_dev * dev,struct mlx5_fs_hws_context * fs_ctx)23 static int mlx5_fs_init_hws_actions_pool(struct mlx5_core_dev *dev,
24 struct mlx5_fs_hws_context *fs_ctx)
25 {
26 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
27 struct mlx5_fs_hws_actions_pool *hws_pool = &fs_ctx->hws_pool;
28 struct mlx5hws_action_reformat_header reformat_hdr = {};
29 struct mlx5hws_context *ctx = fs_ctx->hws_ctx;
30 enum mlx5hws_action_type action_type;
31 int err = -ENOSPC;
32
33 hws_pool->tag_action = mlx5hws_action_create_tag(ctx, flags);
34 if (!hws_pool->tag_action)
35 return err;
36 hws_pool->pop_vlan_action = mlx5hws_action_create_pop_vlan(ctx, flags);
37 if (!hws_pool->pop_vlan_action)
38 goto destroy_tag;
39 hws_pool->push_vlan_action = mlx5hws_action_create_push_vlan(ctx, flags);
40 if (!hws_pool->push_vlan_action)
41 goto destroy_pop_vlan;
42 hws_pool->drop_action = mlx5hws_action_create_dest_drop(ctx, flags);
43 if (!hws_pool->drop_action)
44 goto destroy_push_vlan;
45 action_type = MLX5HWS_ACTION_TYP_REFORMAT_TNL_L2_TO_L2;
46 hws_pool->decapl2_action =
47 mlx5hws_action_create_reformat(ctx, action_type, 1,
48 &reformat_hdr, 0, flags);
49 if (!hws_pool->decapl2_action)
50 goto destroy_drop;
51 hws_pool->remove_hdr_vlan_action =
52 mlx5_fs_create_action_remove_header_vlan(ctx);
53 if (!hws_pool->remove_hdr_vlan_action)
54 goto destroy_decapl2;
55 err = mlx5_fs_hws_pr_pool_init(&hws_pool->insert_hdr_pool, dev, 0,
56 MLX5HWS_ACTION_TYP_INSERT_HEADER);
57 if (err)
58 goto destroy_remove_hdr;
59 err = mlx5_fs_hws_pr_pool_init(&hws_pool->dl3tnltol2_pool, dev, 0,
60 MLX5HWS_ACTION_TYP_REFORMAT_TNL_L3_TO_L2);
61 if (err)
62 goto cleanup_insert_hdr;
63 xa_init(&hws_pool->el2tol3tnl_pools);
64 xa_init(&hws_pool->el2tol2tnl_pools);
65 xa_init(&hws_pool->mh_pools);
66 xa_init(&hws_pool->table_dests);
67 xa_init(&hws_pool->vport_dests);
68 xa_init(&hws_pool->vport_vhca_dests);
69 return 0;
70
71 cleanup_insert_hdr:
72 mlx5_fs_hws_pr_pool_cleanup(&hws_pool->insert_hdr_pool);
73 destroy_remove_hdr:
74 mlx5hws_action_destroy(hws_pool->remove_hdr_vlan_action);
75 destroy_decapl2:
76 mlx5hws_action_destroy(hws_pool->decapl2_action);
77 destroy_drop:
78 mlx5hws_action_destroy(hws_pool->drop_action);
79 destroy_push_vlan:
80 mlx5hws_action_destroy(hws_pool->push_vlan_action);
81 destroy_pop_vlan:
82 mlx5hws_action_destroy(hws_pool->pop_vlan_action);
83 destroy_tag:
84 mlx5hws_action_destroy(hws_pool->tag_action);
85 return err;
86 }
87
mlx5_fs_cleanup_hws_actions_pool(struct mlx5_fs_hws_context * fs_ctx)88 static void mlx5_fs_cleanup_hws_actions_pool(struct mlx5_fs_hws_context *fs_ctx)
89 {
90 struct mlx5_fs_hws_actions_pool *hws_pool = &fs_ctx->hws_pool;
91 struct mlx5hws_action *action;
92 struct mlx5_fs_pool *pool;
93 unsigned long i;
94
95 xa_for_each(&hws_pool->vport_vhca_dests, i, action)
96 mlx5hws_action_destroy(action);
97 xa_destroy(&hws_pool->vport_vhca_dests);
98 xa_for_each(&hws_pool->vport_dests, i, action)
99 mlx5hws_action_destroy(action);
100 xa_destroy(&hws_pool->vport_dests);
101 xa_destroy(&hws_pool->table_dests);
102 xa_for_each(&hws_pool->mh_pools, i, pool)
103 mlx5_fs_destroy_mh_pool(pool, &hws_pool->mh_pools, i);
104 xa_destroy(&hws_pool->mh_pools);
105 xa_for_each(&hws_pool->el2tol2tnl_pools, i, pool)
106 mlx5_fs_destroy_pr_pool(pool, &hws_pool->el2tol2tnl_pools, i);
107 xa_destroy(&hws_pool->el2tol2tnl_pools);
108 xa_for_each(&hws_pool->el2tol3tnl_pools, i, pool)
109 mlx5_fs_destroy_pr_pool(pool, &hws_pool->el2tol3tnl_pools, i);
110 xa_destroy(&hws_pool->el2tol3tnl_pools);
111 mlx5_fs_hws_pr_pool_cleanup(&hws_pool->dl3tnltol2_pool);
112 mlx5_fs_hws_pr_pool_cleanup(&hws_pool->insert_hdr_pool);
113 mlx5hws_action_destroy(hws_pool->remove_hdr_vlan_action);
114 mlx5hws_action_destroy(hws_pool->decapl2_action);
115 mlx5hws_action_destroy(hws_pool->drop_action);
116 mlx5hws_action_destroy(hws_pool->push_vlan_action);
117 mlx5hws_action_destroy(hws_pool->pop_vlan_action);
118 mlx5hws_action_destroy(hws_pool->tag_action);
119 }
120
mlx5_cmd_hws_create_ns(struct mlx5_flow_root_namespace * ns)121 static int mlx5_cmd_hws_create_ns(struct mlx5_flow_root_namespace *ns)
122 {
123 struct mlx5hws_context_attr hws_ctx_attr = {};
124 int err;
125
126 hws_ctx_attr.queues = min_t(int, num_online_cpus(),
127 MLX5HWS_CTX_MAX_NUM_OF_QUEUES);
128 hws_ctx_attr.queue_size = MLX5HWS_CTX_QUEUE_SIZE;
129
130 ns->fs_hws_context.hws_ctx =
131 mlx5hws_context_open(ns->dev, &hws_ctx_attr);
132 if (!ns->fs_hws_context.hws_ctx) {
133 mlx5_core_err(ns->dev, "Failed to create hws flow namespace\n");
134 return -EINVAL;
135 }
136 err = mlx5_fs_init_hws_actions_pool(ns->dev, &ns->fs_hws_context);
137 if (err) {
138 mlx5_core_err(ns->dev, "Failed to init hws actions pool\n");
139 mlx5hws_context_close(ns->fs_hws_context.hws_ctx);
140 return err;
141 }
142 return 0;
143 }
144
mlx5_cmd_hws_destroy_ns(struct mlx5_flow_root_namespace * ns)145 static int mlx5_cmd_hws_destroy_ns(struct mlx5_flow_root_namespace *ns)
146 {
147 mlx5_fs_cleanup_hws_actions_pool(&ns->fs_hws_context);
148 return mlx5hws_context_close(ns->fs_hws_context.hws_ctx);
149 }
150
mlx5_cmd_hws_set_peer(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_root_namespace * peer_ns,u16 peer_vhca_id)151 static int mlx5_cmd_hws_set_peer(struct mlx5_flow_root_namespace *ns,
152 struct mlx5_flow_root_namespace *peer_ns,
153 u16 peer_vhca_id)
154 {
155 struct mlx5hws_context *peer_ctx = NULL;
156
157 if (peer_ns)
158 peer_ctx = peer_ns->fs_hws_context.hws_ctx;
159 mlx5hws_context_set_peer(ns->fs_hws_context.hws_ctx, peer_ctx,
160 peer_vhca_id);
161 return 0;
162 }
163
mlx5_fs_set_ft_default_miss(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_table * next_ft)164 static int mlx5_fs_set_ft_default_miss(struct mlx5_flow_root_namespace *ns,
165 struct mlx5_flow_table *ft,
166 struct mlx5_flow_table *next_ft)
167 {
168 struct mlx5hws_table *next_tbl;
169 int err;
170
171 if (!ns->fs_hws_context.hws_ctx)
172 return -EINVAL;
173
174 /* if no change required, return */
175 if (!next_ft && !ft->fs_hws_table.miss_ft_set)
176 return 0;
177
178 next_tbl = next_ft ? next_ft->fs_hws_table.hws_table : NULL;
179 err = mlx5hws_table_set_default_miss(ft->fs_hws_table.hws_table, next_tbl);
180 if (err) {
181 mlx5_core_err(ns->dev, "Failed setting FT default miss (%d)\n", err);
182 return err;
183 }
184 ft->fs_hws_table.miss_ft_set = !!next_tbl;
185 return 0;
186 }
187
mlx5_fs_add_flow_table_dest_action(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft)188 static int mlx5_fs_add_flow_table_dest_action(struct mlx5_flow_root_namespace *ns,
189 struct mlx5_flow_table *ft)
190 {
191 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
192 struct mlx5_fs_hws_context *fs_ctx = &ns->fs_hws_context;
193 struct mlx5hws_action *dest_ft_action;
194 struct xarray *dests_xa;
195 int err;
196
197 dest_ft_action = mlx5hws_action_create_dest_table_num(fs_ctx->hws_ctx,
198 ft->id, flags);
199 if (!dest_ft_action) {
200 mlx5_core_err(ns->dev, "Failed creating dest table action\n");
201 return -ENOMEM;
202 }
203
204 dests_xa = &fs_ctx->hws_pool.table_dests;
205 err = xa_insert(dests_xa, ft->id, dest_ft_action, GFP_KERNEL);
206 if (err)
207 mlx5hws_action_destroy(dest_ft_action);
208 return err;
209 }
210
mlx5_fs_del_flow_table_dest_action(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft)211 static int mlx5_fs_del_flow_table_dest_action(struct mlx5_flow_root_namespace *ns,
212 struct mlx5_flow_table *ft)
213 {
214 struct mlx5_fs_hws_context *fs_ctx = &ns->fs_hws_context;
215 struct mlx5hws_action *dest_ft_action;
216 struct xarray *dests_xa;
217 int err;
218
219 dests_xa = &fs_ctx->hws_pool.table_dests;
220 dest_ft_action = xa_erase(dests_xa, ft->id);
221 if (!dest_ft_action) {
222 mlx5_core_err(ns->dev, "Failed to erase dest ft action\n");
223 return -ENOENT;
224 }
225
226 err = mlx5hws_action_destroy(dest_ft_action);
227 if (err)
228 mlx5_core_err(ns->dev, "Failed to destroy dest ft action\n");
229 return err;
230 }
231
mlx5_cmd_hws_create_flow_table(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_table_attr * ft_attr,struct mlx5_flow_table * next_ft)232 static int mlx5_cmd_hws_create_flow_table(struct mlx5_flow_root_namespace *ns,
233 struct mlx5_flow_table *ft,
234 struct mlx5_flow_table_attr *ft_attr,
235 struct mlx5_flow_table *next_ft)
236 {
237 struct mlx5hws_context *ctx = ns->fs_hws_context.hws_ctx;
238 struct mlx5hws_table_attr tbl_attr = {};
239 struct mlx5hws_table *tbl;
240 int err;
241
242 if (mlx5_fs_cmd_is_fw_term_table(ft)) {
243 err = mlx5_fs_cmd_get_fw_cmds()->create_flow_table(ns, ft, ft_attr,
244 next_ft);
245 if (err)
246 return err;
247 err = mlx5_fs_add_flow_table_dest_action(ns, ft);
248 if (err)
249 mlx5_fs_cmd_get_fw_cmds()->destroy_flow_table(ns, ft);
250 return err;
251 }
252
253 if (ns->table_type != FS_FT_FDB) {
254 mlx5_core_err(ns->dev, "Table type %d not supported for HWS\n",
255 ns->table_type);
256 return -EOPNOTSUPP;
257 }
258
259 tbl_attr.type = MLX5HWS_TABLE_TYPE_FDB;
260 tbl_attr.level = ft_attr->level;
261 tbl = mlx5hws_table_create(ctx, &tbl_attr);
262 if (!tbl) {
263 mlx5_core_err(ns->dev, "Failed creating hws flow_table\n");
264 return -EINVAL;
265 }
266
267 ft->fs_hws_table.hws_table = tbl;
268 ft->id = mlx5hws_table_get_id(tbl);
269
270 if (next_ft) {
271 err = mlx5_fs_set_ft_default_miss(ns, ft, next_ft);
272 if (err)
273 goto destroy_table;
274 }
275
276 ft->max_fte = INT_MAX;
277
278 err = mlx5_fs_add_flow_table_dest_action(ns, ft);
279 if (err)
280 goto clear_ft_miss;
281 return 0;
282
283 clear_ft_miss:
284 mlx5_fs_set_ft_default_miss(ns, ft, NULL);
285 destroy_table:
286 mlx5hws_table_destroy(tbl);
287 ft->fs_hws_table.hws_table = NULL;
288 return err;
289 }
290
mlx5_cmd_hws_destroy_flow_table(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft)291 static int mlx5_cmd_hws_destroy_flow_table(struct mlx5_flow_root_namespace *ns,
292 struct mlx5_flow_table *ft)
293 {
294 int err;
295
296 err = mlx5_fs_del_flow_table_dest_action(ns, ft);
297 if (err)
298 mlx5_core_err(ns->dev, "Failed to remove dest action (%d)\n", err);
299
300 if (mlx5_fs_cmd_is_fw_term_table(ft))
301 return mlx5_fs_cmd_get_fw_cmds()->destroy_flow_table(ns, ft);
302
303 err = mlx5_fs_set_ft_default_miss(ns, ft, NULL);
304 if (err)
305 mlx5_core_err(ns->dev, "Failed to disconnect next table (%d)\n", err);
306
307 err = mlx5hws_table_destroy(ft->fs_hws_table.hws_table);
308 if (err)
309 mlx5_core_err(ns->dev, "Failed to destroy flow_table (%d)\n", err);
310
311 return err;
312 }
313
mlx5_cmd_hws_modify_flow_table(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_table * next_ft)314 static int mlx5_cmd_hws_modify_flow_table(struct mlx5_flow_root_namespace *ns,
315 struct mlx5_flow_table *ft,
316 struct mlx5_flow_table *next_ft)
317 {
318 if (mlx5_fs_cmd_is_fw_term_table(ft))
319 return mlx5_fs_cmd_get_fw_cmds()->modify_flow_table(ns, ft, next_ft);
320
321 return mlx5_fs_set_ft_default_miss(ns, ft, next_ft);
322 }
323
mlx5_cmd_hws_update_root_ft(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,u32 underlay_qpn,bool disconnect)324 static int mlx5_cmd_hws_update_root_ft(struct mlx5_flow_root_namespace *ns,
325 struct mlx5_flow_table *ft,
326 u32 underlay_qpn,
327 bool disconnect)
328 {
329 return mlx5_fs_cmd_get_fw_cmds()->update_root_ft(ns, ft, underlay_qpn,
330 disconnect);
331 }
332
mlx5_cmd_hws_create_flow_group(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,u32 * in,struct mlx5_flow_group * fg)333 static int mlx5_cmd_hws_create_flow_group(struct mlx5_flow_root_namespace *ns,
334 struct mlx5_flow_table *ft, u32 *in,
335 struct mlx5_flow_group *fg)
336 {
337 struct mlx5hws_match_parameters mask;
338 struct mlx5hws_bwc_matcher *matcher;
339 u8 match_criteria_enable;
340 u32 priority;
341
342 if (mlx5_fs_cmd_is_fw_term_table(ft))
343 return mlx5_fs_cmd_get_fw_cmds()->create_flow_group(ns, ft, in, fg);
344
345 mask.match_buf = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
346 mask.match_sz = sizeof(fg->mask.match_criteria);
347
348 match_criteria_enable = MLX5_GET(create_flow_group_in, in,
349 match_criteria_enable);
350 priority = MLX5_GET(create_flow_group_in, in, start_flow_index);
351 matcher = mlx5hws_bwc_matcher_create(ft->fs_hws_table.hws_table,
352 priority, match_criteria_enable,
353 &mask);
354 if (!matcher) {
355 mlx5_core_err(ns->dev, "Failed creating matcher\n");
356 return -EINVAL;
357 }
358
359 fg->fs_hws_matcher.matcher = matcher;
360 return 0;
361 }
362
mlx5_cmd_hws_destroy_flow_group(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_group * fg)363 static int mlx5_cmd_hws_destroy_flow_group(struct mlx5_flow_root_namespace *ns,
364 struct mlx5_flow_table *ft,
365 struct mlx5_flow_group *fg)
366 {
367 if (mlx5_fs_cmd_is_fw_term_table(ft))
368 return mlx5_fs_cmd_get_fw_cmds()->destroy_flow_group(ns, ft, fg);
369
370 return mlx5hws_bwc_matcher_destroy(fg->fs_hws_matcher.matcher);
371 }
372
373 static struct mlx5hws_action *
mlx5_fs_get_dest_action_ft(struct mlx5_fs_hws_context * fs_ctx,struct mlx5_flow_rule * dst)374 mlx5_fs_get_dest_action_ft(struct mlx5_fs_hws_context *fs_ctx,
375 struct mlx5_flow_rule *dst)
376 {
377 return xa_load(&fs_ctx->hws_pool.table_dests, dst->dest_attr.ft->id);
378 }
379
380 static struct mlx5hws_action *
mlx5_fs_get_dest_action_table_num(struct mlx5_fs_hws_context * fs_ctx,struct mlx5_flow_rule * dst)381 mlx5_fs_get_dest_action_table_num(struct mlx5_fs_hws_context *fs_ctx,
382 struct mlx5_flow_rule *dst)
383 {
384 u32 table_num = dst->dest_attr.ft_num;
385
386 return xa_load(&fs_ctx->hws_pool.table_dests, table_num);
387 }
388
389 static struct mlx5hws_action *
mlx5_fs_create_dest_action_table_num(struct mlx5_fs_hws_context * fs_ctx,struct mlx5_flow_rule * dst)390 mlx5_fs_create_dest_action_table_num(struct mlx5_fs_hws_context *fs_ctx,
391 struct mlx5_flow_rule *dst)
392 {
393 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
394 struct mlx5hws_context *ctx = fs_ctx->hws_ctx;
395 u32 table_num = dst->dest_attr.ft_num;
396
397 return mlx5hws_action_create_dest_table_num(ctx, table_num, flags);
398 }
399
400 static struct mlx5hws_action *
mlx5_fs_get_dest_action_vport(struct mlx5_fs_hws_context * fs_ctx,struct mlx5_flow_rule * dst,bool is_dest_type_uplink)401 mlx5_fs_get_dest_action_vport(struct mlx5_fs_hws_context *fs_ctx,
402 struct mlx5_flow_rule *dst,
403 bool is_dest_type_uplink)
404 {
405 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
406 struct mlx5_flow_destination *dest_attr = &dst->dest_attr;
407 struct mlx5hws_context *ctx = fs_ctx->hws_ctx;
408 struct mlx5hws_action *dest;
409 struct xarray *dests_xa;
410 bool vhca_id_valid;
411 unsigned long idx;
412 u16 vport_num;
413 int err;
414
415 vhca_id_valid = is_dest_type_uplink ||
416 (dest_attr->vport.flags & MLX5_FLOW_DEST_VPORT_VHCA_ID);
417 vport_num = is_dest_type_uplink ? MLX5_VPORT_UPLINK : dest_attr->vport.num;
418 if (vhca_id_valid) {
419 dests_xa = &fs_ctx->hws_pool.vport_vhca_dests;
420 idx = (unsigned long)dest_attr->vport.vhca_id << 16 | vport_num;
421 } else {
422 dests_xa = &fs_ctx->hws_pool.vport_dests;
423 idx = vport_num;
424 }
425 dest_load:
426 dest = xa_load(dests_xa, idx);
427 if (dest)
428 return dest;
429
430 dest = mlx5hws_action_create_dest_vport(ctx, vport_num, vhca_id_valid,
431 dest_attr->vport.vhca_id, flags);
432
433 err = xa_insert(dests_xa, idx, dest, GFP_KERNEL);
434 if (err) {
435 mlx5hws_action_destroy(dest);
436 dest = NULL;
437
438 if (err == -EBUSY)
439 /* xarray entry was already stored by another thread */
440 goto dest_load;
441 }
442
443 return dest;
444 }
445
446 static struct mlx5hws_action *
mlx5_fs_create_dest_action_range(struct mlx5hws_context * ctx,struct mlx5_flow_rule * dst)447 mlx5_fs_create_dest_action_range(struct mlx5hws_context *ctx,
448 struct mlx5_flow_rule *dst)
449 {
450 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
451 struct mlx5_flow_destination *dest_attr = &dst->dest_attr;
452
453 return mlx5hws_action_create_dest_match_range(ctx,
454 dest_attr->range.field,
455 dest_attr->range.hit_ft,
456 dest_attr->range.miss_ft,
457 dest_attr->range.min,
458 dest_attr->range.max,
459 flags);
460 }
461
462 static struct mlx5hws_action *
mlx5_fs_create_action_dest_array(struct mlx5hws_context * ctx,struct mlx5hws_action_dest_attr * dests,u32 num_of_dests,bool ignore_flow_level,u32 flow_source)463 mlx5_fs_create_action_dest_array(struct mlx5hws_context *ctx,
464 struct mlx5hws_action_dest_attr *dests,
465 u32 num_of_dests, bool ignore_flow_level,
466 u32 flow_source)
467 {
468 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
469
470 return mlx5hws_action_create_dest_array(ctx, num_of_dests, dests,
471 ignore_flow_level,
472 flow_source, flags);
473 }
474
475 static struct mlx5hws_action *
mlx5_fs_get_action_push_vlan(struct mlx5_fs_hws_context * fs_ctx)476 mlx5_fs_get_action_push_vlan(struct mlx5_fs_hws_context *fs_ctx)
477 {
478 return fs_ctx->hws_pool.push_vlan_action;
479 }
480
mlx5_fs_calc_vlan_hdr(struct mlx5_fs_vlan * vlan)481 static u32 mlx5_fs_calc_vlan_hdr(struct mlx5_fs_vlan *vlan)
482 {
483 u16 n_ethtype = vlan->ethtype;
484 u8 prio = vlan->prio;
485 u16 vid = vlan->vid;
486
487 return (u32)n_ethtype << 16 | (u32)(prio) << 12 | (u32)vid;
488 }
489
490 static struct mlx5hws_action *
mlx5_fs_get_action_pop_vlan(struct mlx5_fs_hws_context * fs_ctx)491 mlx5_fs_get_action_pop_vlan(struct mlx5_fs_hws_context *fs_ctx)
492 {
493 return fs_ctx->hws_pool.pop_vlan_action;
494 }
495
496 static struct mlx5hws_action *
mlx5_fs_get_action_decap_tnl_l2_to_l2(struct mlx5_fs_hws_context * fs_ctx)497 mlx5_fs_get_action_decap_tnl_l2_to_l2(struct mlx5_fs_hws_context *fs_ctx)
498 {
499 return fs_ctx->hws_pool.decapl2_action;
500 }
501
502 static struct mlx5hws_action *
mlx5_fs_get_dest_action_drop(struct mlx5_fs_hws_context * fs_ctx)503 mlx5_fs_get_dest_action_drop(struct mlx5_fs_hws_context *fs_ctx)
504 {
505 return fs_ctx->hws_pool.drop_action;
506 }
507
508 static struct mlx5hws_action *
mlx5_fs_get_action_tag(struct mlx5_fs_hws_context * fs_ctx)509 mlx5_fs_get_action_tag(struct mlx5_fs_hws_context *fs_ctx)
510 {
511 return fs_ctx->hws_pool.tag_action;
512 }
513
514 static struct mlx5hws_action *
mlx5_fs_create_action_last(struct mlx5hws_context * ctx)515 mlx5_fs_create_action_last(struct mlx5hws_context *ctx)
516 {
517 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
518
519 return mlx5hws_action_create_last(ctx, flags);
520 }
521
mlx5_fs_destroy_fs_action(struct mlx5_fs_hws_rule_action * fs_action)522 static void mlx5_fs_destroy_fs_action(struct mlx5_fs_hws_rule_action *fs_action)
523 {
524 switch (mlx5hws_action_get_type(fs_action->action)) {
525 case MLX5HWS_ACTION_TYP_CTR:
526 mlx5_fc_put_hws_action(fs_action->counter);
527 break;
528 default:
529 mlx5hws_action_destroy(fs_action->action);
530 }
531 }
532
533 static void
mlx5_fs_destroy_fs_actions(struct mlx5_fs_hws_rule_action ** fs_actions,int * num_fs_actions)534 mlx5_fs_destroy_fs_actions(struct mlx5_fs_hws_rule_action **fs_actions,
535 int *num_fs_actions)
536 {
537 int i;
538
539 /* Free in reverse order to handle action dependencies */
540 for (i = *num_fs_actions - 1; i >= 0; i--)
541 mlx5_fs_destroy_fs_action(*fs_actions + i);
542 *num_fs_actions = 0;
543 kfree(*fs_actions);
544 *fs_actions = NULL;
545 }
546
547 /* Splits FTE's actions into cached, rule and destination actions.
548 * The cached and destination actions are saved on the fte hws rule.
549 * The rule actions are returned as a parameter, together with their count.
550 * We want to support a rule with 32 destinations, which means we need to
551 * account for 32 destinations plus usually a counter plus one more action
552 * for a multi-destination flow table.
553 * 32 is SW limitation for array size, keep. HWS limitation is 16M STEs per matcher
554 */
555 #define MLX5_FLOW_CONTEXT_ACTION_MAX 34
mlx5_fs_fte_get_hws_actions(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_group * group,struct fs_fte * fte,struct mlx5hws_rule_action ** ractions)556 static int mlx5_fs_fte_get_hws_actions(struct mlx5_flow_root_namespace *ns,
557 struct mlx5_flow_table *ft,
558 struct mlx5_flow_group *group,
559 struct fs_fte *fte,
560 struct mlx5hws_rule_action **ractions)
561 {
562 struct mlx5_flow_act *fte_action = &fte->act_dests.action;
563 struct mlx5_fs_hws_context *fs_ctx = &ns->fs_hws_context;
564 struct mlx5hws_action_dest_attr *dest_actions;
565 struct mlx5hws_context *ctx = fs_ctx->hws_ctx;
566 struct mlx5_fs_hws_rule_action *fs_actions;
567 struct mlx5_core_dev *dev = ns->dev;
568 struct mlx5hws_action *dest_action;
569 struct mlx5hws_action *tmp_action;
570 struct mlx5_fs_hws_pr *pr_data;
571 struct mlx5_fs_hws_mh *mh_data;
572 bool delay_encap_set = false;
573 struct mlx5_flow_rule *dst;
574 int num_dest_actions = 0;
575 int num_fs_actions = 0;
576 int num_actions = 0;
577 int err;
578
579 *ractions = kcalloc(MLX5_FLOW_CONTEXT_ACTION_MAX, sizeof(**ractions),
580 GFP_KERNEL);
581 if (!*ractions) {
582 err = -ENOMEM;
583 goto out_err;
584 }
585
586 fs_actions = kcalloc(MLX5_FLOW_CONTEXT_ACTION_MAX,
587 sizeof(*fs_actions), GFP_KERNEL);
588 if (!fs_actions) {
589 err = -ENOMEM;
590 goto free_actions_alloc;
591 }
592
593 dest_actions = kcalloc(MLX5_FLOW_CONTEXT_ACTION_MAX,
594 sizeof(*dest_actions), GFP_KERNEL);
595 if (!dest_actions) {
596 err = -ENOMEM;
597 goto free_fs_actions_alloc;
598 }
599
600 /* The order of the actions are must to be kept, only the following
601 * order is supported by HW steering:
602 * HWS: decap -> remove_hdr -> pop_vlan -> modify header -> push_vlan
603 * -> reformat (insert_hdr/encap) -> ctr -> tag -> aso
604 * -> drop -> FWD:tbl/vport/sampler/tbl_num/range -> dest_array -> last
605 */
606 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_DECAP) {
607 tmp_action = mlx5_fs_get_action_decap_tnl_l2_to_l2(fs_ctx);
608 if (!tmp_action) {
609 err = -ENOMEM;
610 goto free_dest_actions_alloc;
611 }
612 (*ractions)[num_actions++].action = tmp_action;
613 }
614
615 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT) {
616 int reformat_type = fte_action->pkt_reformat->reformat_type;
617
618 if (fte_action->pkt_reformat->owner == MLX5_FLOW_RESOURCE_OWNER_FW) {
619 mlx5_core_err(dev, "FW-owned reformat can't be used in HWS rule\n");
620 err = -EINVAL;
621 goto free_actions;
622 }
623
624 if (reformat_type == MLX5_REFORMAT_TYPE_L3_TUNNEL_TO_L2) {
625 pr_data = fte_action->pkt_reformat->fs_hws_action.pr_data;
626 (*ractions)[num_actions].reformat.offset = pr_data->offset;
627 (*ractions)[num_actions].reformat.hdr_idx = pr_data->hdr_idx;
628 (*ractions)[num_actions].reformat.data = pr_data->data;
629 (*ractions)[num_actions++].action =
630 fte_action->pkt_reformat->fs_hws_action.hws_action;
631 } else if (reformat_type == MLX5_REFORMAT_TYPE_REMOVE_HDR) {
632 (*ractions)[num_actions++].action =
633 fte_action->pkt_reformat->fs_hws_action.hws_action;
634 } else {
635 delay_encap_set = true;
636 }
637 }
638
639 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) {
640 tmp_action = mlx5_fs_get_action_pop_vlan(fs_ctx);
641 if (!tmp_action) {
642 err = -ENOMEM;
643 goto free_actions;
644 }
645 (*ractions)[num_actions++].action = tmp_action;
646 }
647
648 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2) {
649 tmp_action = mlx5_fs_get_action_pop_vlan(fs_ctx);
650 if (!tmp_action) {
651 err = -ENOMEM;
652 goto free_actions;
653 }
654 (*ractions)[num_actions++].action = tmp_action;
655 }
656
657 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) {
658 mh_data = fte_action->modify_hdr->fs_hws_action.mh_data;
659 (*ractions)[num_actions].modify_header.offset = mh_data->offset;
660 (*ractions)[num_actions].modify_header.data = mh_data->data;
661 (*ractions)[num_actions++].action =
662 fte_action->modify_hdr->fs_hws_action.hws_action;
663 }
664
665 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) {
666 tmp_action = mlx5_fs_get_action_push_vlan(fs_ctx);
667 if (!tmp_action) {
668 err = -ENOMEM;
669 goto free_actions;
670 }
671 (*ractions)[num_actions].push_vlan.vlan_hdr =
672 htonl(mlx5_fs_calc_vlan_hdr(&fte_action->vlan[0]));
673 (*ractions)[num_actions++].action = tmp_action;
674 }
675
676 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2) {
677 tmp_action = mlx5_fs_get_action_push_vlan(fs_ctx);
678 if (!tmp_action) {
679 err = -ENOMEM;
680 goto free_actions;
681 }
682 (*ractions)[num_actions].push_vlan.vlan_hdr =
683 htonl(mlx5_fs_calc_vlan_hdr(&fte_action->vlan[1]));
684 (*ractions)[num_actions++].action = tmp_action;
685 }
686
687 if (delay_encap_set) {
688 pr_data = fte_action->pkt_reformat->fs_hws_action.pr_data;
689 (*ractions)[num_actions].reformat.offset = pr_data->offset;
690 (*ractions)[num_actions].reformat.data = pr_data->data;
691 (*ractions)[num_actions++].action =
692 fte_action->pkt_reformat->fs_hws_action.hws_action;
693 }
694
695 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
696 list_for_each_entry(dst, &fte->node.children, node.list) {
697 struct mlx5_fc *counter;
698
699 if (dst->dest_attr.type !=
700 MLX5_FLOW_DESTINATION_TYPE_COUNTER)
701 continue;
702
703 if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
704 err = -EOPNOTSUPP;
705 goto free_actions;
706 }
707
708 counter = dst->dest_attr.counter;
709 tmp_action = mlx5_fc_get_hws_action(ctx, counter);
710 if (!tmp_action) {
711 err = -EINVAL;
712 goto free_actions;
713 }
714
715 (*ractions)[num_actions].counter.offset =
716 mlx5_fc_id(counter) - mlx5_fc_get_base_id(counter);
717 (*ractions)[num_actions++].action = tmp_action;
718 fs_actions[num_fs_actions].action = tmp_action;
719 fs_actions[num_fs_actions++].counter = counter;
720 }
721 }
722
723 if (fte->act_dests.flow_context.flow_tag) {
724 if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
725 err = -EOPNOTSUPP;
726 goto free_actions;
727 }
728 tmp_action = mlx5_fs_get_action_tag(fs_ctx);
729 if (!tmp_action) {
730 err = -ENOMEM;
731 goto free_actions;
732 }
733 (*ractions)[num_actions].tag.value = fte->act_dests.flow_context.flow_tag;
734 (*ractions)[num_actions++].action = tmp_action;
735 }
736
737 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_EXECUTE_ASO) {
738 err = -EOPNOTSUPP;
739 goto free_actions;
740 }
741
742 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_DROP) {
743 dest_action = mlx5_fs_get_dest_action_drop(fs_ctx);
744 if (!dest_action) {
745 err = -ENOMEM;
746 goto free_actions;
747 }
748 dest_actions[num_dest_actions++].dest = dest_action;
749 }
750
751 if (fte_action->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
752 list_for_each_entry(dst, &fte->node.children, node.list) {
753 struct mlx5_flow_destination *attr = &dst->dest_attr;
754 bool type_uplink =
755 attr->type == MLX5_FLOW_DESTINATION_TYPE_UPLINK;
756
757 if (num_fs_actions == MLX5_FLOW_CONTEXT_ACTION_MAX ||
758 num_dest_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
759 err = -EOPNOTSUPP;
760 goto free_actions;
761 }
762 if (attr->type == MLX5_FLOW_DESTINATION_TYPE_COUNTER)
763 continue;
764
765 switch (attr->type) {
766 case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE:
767 dest_action = mlx5_fs_get_dest_action_ft(fs_ctx, dst);
768 break;
769 case MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM:
770 dest_action = mlx5_fs_get_dest_action_table_num(fs_ctx,
771 dst);
772 if (dest_action)
773 break;
774 dest_action = mlx5_fs_create_dest_action_table_num(fs_ctx,
775 dst);
776 fs_actions[num_fs_actions++].action = dest_action;
777 break;
778 case MLX5_FLOW_DESTINATION_TYPE_RANGE:
779 dest_action = mlx5_fs_create_dest_action_range(ctx, dst);
780 fs_actions[num_fs_actions++].action = dest_action;
781 break;
782 case MLX5_FLOW_DESTINATION_TYPE_UPLINK:
783 case MLX5_FLOW_DESTINATION_TYPE_VPORT:
784 dest_action = mlx5_fs_get_dest_action_vport(fs_ctx, dst,
785 type_uplink);
786 break;
787 default:
788 err = -EOPNOTSUPP;
789 goto free_actions;
790 }
791 if (!dest_action) {
792 err = -ENOMEM;
793 goto free_actions;
794 }
795 dest_actions[num_dest_actions++].dest = dest_action;
796 }
797 }
798
799 if (num_dest_actions == 1) {
800 if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
801 err = -EOPNOTSUPP;
802 goto free_actions;
803 }
804 (*ractions)[num_actions++].action = dest_actions->dest;
805 } else if (num_dest_actions > 1) {
806 u32 flow_source = fte->act_dests.flow_context.flow_source;
807 bool ignore_flow_level;
808
809 if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX ||
810 num_fs_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
811 err = -EOPNOTSUPP;
812 goto free_actions;
813 }
814 ignore_flow_level =
815 !!(fte_action->flags & FLOW_ACT_IGNORE_FLOW_LEVEL);
816 tmp_action = mlx5_fs_create_action_dest_array(ctx, dest_actions,
817 num_dest_actions,
818 ignore_flow_level,
819 flow_source);
820 if (!tmp_action) {
821 err = -EOPNOTSUPP;
822 goto free_actions;
823 }
824 fs_actions[num_fs_actions++].action = tmp_action;
825 (*ractions)[num_actions++].action = tmp_action;
826 }
827
828 if (num_actions == MLX5_FLOW_CONTEXT_ACTION_MAX ||
829 num_fs_actions == MLX5_FLOW_CONTEXT_ACTION_MAX) {
830 err = -EOPNOTSUPP;
831 goto free_actions;
832 }
833
834 tmp_action = mlx5_fs_create_action_last(ctx);
835 if (!tmp_action) {
836 err = -ENOMEM;
837 goto free_actions;
838 }
839 fs_actions[num_fs_actions++].action = tmp_action;
840 (*ractions)[num_actions++].action = tmp_action;
841
842 kfree(dest_actions);
843
844 /* Actions created specifically for this rule will be destroyed
845 * once rule is deleted.
846 */
847 fte->fs_hws_rule.num_fs_actions = num_fs_actions;
848 fte->fs_hws_rule.hws_fs_actions = fs_actions;
849
850 return 0;
851
852 free_actions:
853 mlx5_fs_destroy_fs_actions(&fs_actions, &num_fs_actions);
854 free_dest_actions_alloc:
855 kfree(dest_actions);
856 free_fs_actions_alloc:
857 kfree(fs_actions);
858 free_actions_alloc:
859 kfree(*ractions);
860 *ractions = NULL;
861 out_err:
862 return err;
863 }
864
mlx5_cmd_hws_create_fte(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_group * group,struct fs_fte * fte)865 static int mlx5_cmd_hws_create_fte(struct mlx5_flow_root_namespace *ns,
866 struct mlx5_flow_table *ft,
867 struct mlx5_flow_group *group,
868 struct fs_fte *fte)
869 {
870 struct mlx5hws_match_parameters params;
871 struct mlx5hws_rule_action *ractions;
872 struct mlx5hws_bwc_rule *rule;
873 int err = 0;
874
875 if (mlx5_fs_cmd_is_fw_term_table(ft)) {
876 /* Packet reformat on terminamtion table not supported yet */
877 if (fte->act_dests.action.action &
878 MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT)
879 return -EOPNOTSUPP;
880 return mlx5_fs_cmd_get_fw_cmds()->create_fte(ns, ft, group, fte);
881 }
882
883 err = mlx5_fs_fte_get_hws_actions(ns, ft, group, fte, &ractions);
884 if (err)
885 goto out_err;
886
887 params.match_sz = sizeof(fte->val);
888 params.match_buf = fte->val;
889
890 rule = mlx5hws_bwc_rule_create(group->fs_hws_matcher.matcher, ¶ms,
891 fte->act_dests.flow_context.flow_source,
892 ractions);
893 kfree(ractions);
894 if (!rule) {
895 err = -EINVAL;
896 goto free_actions;
897 }
898
899 fte->fs_hws_rule.bwc_rule = rule;
900 return 0;
901
902 free_actions:
903 mlx5_fs_destroy_fs_actions(&fte->fs_hws_rule.hws_fs_actions,
904 &fte->fs_hws_rule.num_fs_actions);
905 out_err:
906 mlx5_core_err(ns->dev, "Failed to create hws rule err(%d)\n", err);
907 return err;
908 }
909
mlx5_cmd_hws_delete_fte(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct fs_fte * fte)910 static int mlx5_cmd_hws_delete_fte(struct mlx5_flow_root_namespace *ns,
911 struct mlx5_flow_table *ft,
912 struct fs_fte *fte)
913 {
914 struct mlx5_fs_hws_rule *rule = &fte->fs_hws_rule;
915 int err;
916
917 if (mlx5_fs_cmd_is_fw_term_table(ft))
918 return mlx5_fs_cmd_get_fw_cmds()->delete_fte(ns, ft, fte);
919
920 err = mlx5hws_bwc_rule_destroy(rule->bwc_rule);
921 rule->bwc_rule = NULL;
922
923 mlx5_fs_destroy_fs_actions(&rule->hws_fs_actions, &rule->num_fs_actions);
924
925 return err;
926 }
927
mlx5_cmd_hws_update_fte(struct mlx5_flow_root_namespace * ns,struct mlx5_flow_table * ft,struct mlx5_flow_group * group,int modify_mask,struct fs_fte * fte)928 static int mlx5_cmd_hws_update_fte(struct mlx5_flow_root_namespace *ns,
929 struct mlx5_flow_table *ft,
930 struct mlx5_flow_group *group,
931 int modify_mask,
932 struct fs_fte *fte)
933 {
934 int allowed_mask = BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_ACTION) |
935 BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_DESTINATION_LIST) |
936 BIT(MLX5_SET_FTE_MODIFY_ENABLE_MASK_FLOW_COUNTERS);
937 struct mlx5_fs_hws_rule_action *saved_hws_fs_actions;
938 struct mlx5hws_rule_action *ractions;
939 int saved_num_fs_actions;
940 int ret;
941
942 if (mlx5_fs_cmd_is_fw_term_table(ft))
943 return mlx5_fs_cmd_get_fw_cmds()->update_fte(ns, ft, group,
944 modify_mask, fte);
945
946 if ((modify_mask & ~allowed_mask) != 0)
947 return -EINVAL;
948
949 saved_hws_fs_actions = fte->fs_hws_rule.hws_fs_actions;
950 saved_num_fs_actions = fte->fs_hws_rule.num_fs_actions;
951
952 ret = mlx5_fs_fte_get_hws_actions(ns, ft, group, fte, &ractions);
953 if (ret)
954 return ret;
955
956 ret = mlx5hws_bwc_rule_action_update(fte->fs_hws_rule.bwc_rule, ractions);
957 kfree(ractions);
958 if (ret)
959 goto restore_actions;
960
961 mlx5_fs_destroy_fs_actions(&saved_hws_fs_actions, &saved_num_fs_actions);
962 return ret;
963
964 restore_actions:
965 mlx5_fs_destroy_fs_actions(&fte->fs_hws_rule.hws_fs_actions,
966 &fte->fs_hws_rule.num_fs_actions);
967 fte->fs_hws_rule.hws_fs_actions = saved_hws_fs_actions;
968 fte->fs_hws_rule.num_fs_actions = saved_num_fs_actions;
969 return ret;
970 }
971
972 static struct mlx5hws_action *
mlx5_fs_create_action_remove_header_vlan(struct mlx5hws_context * ctx)973 mlx5_fs_create_action_remove_header_vlan(struct mlx5hws_context *ctx)
974 {
975 u32 flags = MLX5HWS_ACTION_FLAG_HWS_FDB | MLX5HWS_ACTION_FLAG_SHARED;
976 struct mlx5hws_action_remove_header_attr remove_hdr_vlan = {};
977
978 /* MAC anchor not supported in HWS reformat, use VLAN anchor */
979 remove_hdr_vlan.anchor = MLX5_REFORMAT_CONTEXT_ANCHOR_VLAN_START;
980 remove_hdr_vlan.offset = 0;
981 remove_hdr_vlan.size = sizeof(struct vlan_hdr);
982 return mlx5hws_action_create_remove_header(ctx, &remove_hdr_vlan, flags);
983 }
984
985 static struct mlx5hws_action *
mlx5_fs_get_action_remove_header_vlan(struct mlx5_fs_hws_context * fs_ctx,struct mlx5_pkt_reformat_params * params)986 mlx5_fs_get_action_remove_header_vlan(struct mlx5_fs_hws_context *fs_ctx,
987 struct mlx5_pkt_reformat_params *params)
988 {
989 if (!params ||
990 params->param_0 != MLX5_REFORMAT_CONTEXT_ANCHOR_MAC_START ||
991 params->param_1 != offsetof(struct vlan_ethhdr, h_vlan_proto) ||
992 params->size != sizeof(struct vlan_hdr))
993 return NULL;
994
995 return fs_ctx->hws_pool.remove_hdr_vlan_action;
996 }
997
998 static int
mlx5_fs_verify_insert_header_params(struct mlx5_core_dev * mdev,struct mlx5_pkt_reformat_params * params)999 mlx5_fs_verify_insert_header_params(struct mlx5_core_dev *mdev,
1000 struct mlx5_pkt_reformat_params *params)
1001 {
1002 if ((!params->data && params->size) || (params->data && !params->size) ||
1003 MLX5_CAP_GEN_2(mdev, max_reformat_insert_size) < params->size ||
1004 MLX5_CAP_GEN_2(mdev, max_reformat_insert_offset) < params->param_1) {
1005 mlx5_core_err(mdev, "Invalid reformat params for INSERT_HDR\n");
1006 return -EINVAL;
1007 }
1008 if (params->param_0 != MLX5_FS_INSERT_HDR_VLAN_ANCHOR ||
1009 params->param_1 != MLX5_FS_INSERT_HDR_VLAN_OFFSET ||
1010 params->size != MLX5_FS_INSERT_HDR_VLAN_SIZE) {
1011 mlx5_core_err(mdev, "Only vlan insert header supported\n");
1012 return -EOPNOTSUPP;
1013 }
1014 return 0;
1015 }
1016
1017 static int
mlx5_fs_verify_encap_decap_params(struct mlx5_core_dev * dev,struct mlx5_pkt_reformat_params * params)1018 mlx5_fs_verify_encap_decap_params(struct mlx5_core_dev *dev,
1019 struct mlx5_pkt_reformat_params *params)
1020 {
1021 if (params->param_0 || params->param_1) {
1022 mlx5_core_err(dev, "Invalid reformat params\n");
1023 return -EINVAL;
1024 }
1025 return 0;
1026 }
1027
1028 static struct mlx5_fs_pool *
mlx5_fs_get_pr_encap_pool(struct mlx5_core_dev * dev,struct xarray * pr_pools,enum mlx5hws_action_type reformat_type,size_t size)1029 mlx5_fs_get_pr_encap_pool(struct mlx5_core_dev *dev, struct xarray *pr_pools,
1030 enum mlx5hws_action_type reformat_type, size_t size)
1031 {
1032 struct mlx5_fs_pool *pr_pool;
1033 unsigned long index = size;
1034 int err;
1035
1036 pr_pool = xa_load(pr_pools, index);
1037 if (pr_pool)
1038 return pr_pool;
1039
1040 pr_pool = kzalloc(sizeof(*pr_pool), GFP_KERNEL);
1041 if (!pr_pool)
1042 return ERR_PTR(-ENOMEM);
1043 err = mlx5_fs_hws_pr_pool_init(pr_pool, dev, size, reformat_type);
1044 if (err)
1045 goto free_pr_pool;
1046 err = xa_insert(pr_pools, index, pr_pool, GFP_KERNEL);
1047 if (err)
1048 goto cleanup_pr_pool;
1049 return pr_pool;
1050
1051 cleanup_pr_pool:
1052 mlx5_fs_hws_pr_pool_cleanup(pr_pool);
1053 free_pr_pool:
1054 kfree(pr_pool);
1055 return ERR_PTR(err);
1056 }
1057
1058 static void
mlx5_fs_destroy_pr_pool(struct mlx5_fs_pool * pool,struct xarray * pr_pools,unsigned long index)1059 mlx5_fs_destroy_pr_pool(struct mlx5_fs_pool *pool, struct xarray *pr_pools,
1060 unsigned long index)
1061 {
1062 xa_erase(pr_pools, index);
1063 mlx5_fs_hws_pr_pool_cleanup(pool);
1064 kfree(pool);
1065 }
1066
1067 static int
mlx5_cmd_hws_packet_reformat_alloc(struct mlx5_flow_root_namespace * ns,struct mlx5_pkt_reformat_params * params,enum mlx5_flow_namespace_type namespace,struct mlx5_pkt_reformat * pkt_reformat)1068 mlx5_cmd_hws_packet_reformat_alloc(struct mlx5_flow_root_namespace *ns,
1069 struct mlx5_pkt_reformat_params *params,
1070 enum mlx5_flow_namespace_type namespace,
1071 struct mlx5_pkt_reformat *pkt_reformat)
1072 {
1073 struct mlx5_fs_hws_context *fs_ctx = &ns->fs_hws_context;
1074 struct mlx5_fs_hws_actions_pool *hws_pool;
1075 struct mlx5hws_action *hws_action = NULL;
1076 struct mlx5_fs_hws_pr *pr_data = NULL;
1077 struct mlx5_fs_pool *pr_pool = NULL;
1078 struct mlx5_core_dev *dev = ns->dev;
1079 u8 hdr_idx = 0;
1080 int err;
1081
1082 if (!params)
1083 return -EINVAL;
1084
1085 hws_pool = &fs_ctx->hws_pool;
1086
1087 switch (params->type) {
1088 case MLX5_REFORMAT_TYPE_L2_TO_VXLAN:
1089 case MLX5_REFORMAT_TYPE_L2_TO_NVGRE:
1090 case MLX5_REFORMAT_TYPE_L2_TO_L2_TUNNEL:
1091 if (mlx5_fs_verify_encap_decap_params(dev, params))
1092 return -EINVAL;
1093 pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol2tnl_pools,
1094 MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2,
1095 params->size);
1096 if (IS_ERR(pr_pool))
1097 return PTR_ERR(pr_pool);
1098 break;
1099 case MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL:
1100 if (mlx5_fs_verify_encap_decap_params(dev, params))
1101 return -EINVAL;
1102 pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol3tnl_pools,
1103 MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L3,
1104 params->size);
1105 if (IS_ERR(pr_pool))
1106 return PTR_ERR(pr_pool);
1107 break;
1108 case MLX5_REFORMAT_TYPE_L3_TUNNEL_TO_L2:
1109 if (mlx5_fs_verify_encap_decap_params(dev, params))
1110 return -EINVAL;
1111 pr_pool = &hws_pool->dl3tnltol2_pool;
1112 hdr_idx = params->size == ETH_HLEN ?
1113 MLX5_FS_DL3TNLTOL2_MAC_HDR_IDX :
1114 MLX5_FS_DL3TNLTOL2_MAC_VLAN_HDR_IDX;
1115 break;
1116 case MLX5_REFORMAT_TYPE_INSERT_HDR:
1117 err = mlx5_fs_verify_insert_header_params(dev, params);
1118 if (err)
1119 return err;
1120 pr_pool = &hws_pool->insert_hdr_pool;
1121 break;
1122 case MLX5_REFORMAT_TYPE_REMOVE_HDR:
1123 hws_action = mlx5_fs_get_action_remove_header_vlan(fs_ctx, params);
1124 if (!hws_action)
1125 mlx5_core_err(dev, "Only vlan remove header supported\n");
1126 break;
1127 default:
1128 mlx5_core_err(ns->dev, "Packet-reformat not supported(%d)\n",
1129 params->type);
1130 return -EOPNOTSUPP;
1131 }
1132
1133 if (pr_pool) {
1134 pr_data = mlx5_fs_hws_pr_pool_acquire_pr(pr_pool);
1135 if (IS_ERR_OR_NULL(pr_data))
1136 return !pr_data ? -EINVAL : PTR_ERR(pr_data);
1137 hws_action = pr_data->bulk->hws_action;
1138 if (!hws_action) {
1139 mlx5_core_err(dev,
1140 "Failed allocating packet-reformat action\n");
1141 err = -EINVAL;
1142 goto release_pr;
1143 }
1144 pr_data->data = kmemdup(params->data, params->size, GFP_KERNEL);
1145 if (!pr_data->data) {
1146 err = -ENOMEM;
1147 goto release_pr;
1148 }
1149 pr_data->hdr_idx = hdr_idx;
1150 pr_data->data_size = params->size;
1151 pkt_reformat->fs_hws_action.pr_data = pr_data;
1152 }
1153
1154 pkt_reformat->owner = MLX5_FLOW_RESOURCE_OWNER_SW;
1155 pkt_reformat->fs_hws_action.hws_action = hws_action;
1156 return 0;
1157
1158 release_pr:
1159 if (pr_pool && pr_data)
1160 mlx5_fs_hws_pr_pool_release_pr(pr_pool, pr_data);
1161 return err;
1162 }
1163
mlx5_cmd_hws_packet_reformat_dealloc(struct mlx5_flow_root_namespace * ns,struct mlx5_pkt_reformat * pkt_reformat)1164 static void mlx5_cmd_hws_packet_reformat_dealloc(struct mlx5_flow_root_namespace *ns,
1165 struct mlx5_pkt_reformat *pkt_reformat)
1166 {
1167 struct mlx5_fs_hws_actions_pool *hws_pool = &ns->fs_hws_context.hws_pool;
1168 struct mlx5_core_dev *dev = ns->dev;
1169 struct mlx5_fs_hws_pr *pr_data;
1170 struct mlx5_fs_pool *pr_pool;
1171
1172 if (pkt_reformat->reformat_type == MLX5_REFORMAT_TYPE_REMOVE_HDR)
1173 return;
1174
1175 if (!pkt_reformat->fs_hws_action.pr_data) {
1176 mlx5_core_err(ns->dev, "Failed release packet-reformat\n");
1177 return;
1178 }
1179 pr_data = pkt_reformat->fs_hws_action.pr_data;
1180
1181 switch (pkt_reformat->reformat_type) {
1182 case MLX5_REFORMAT_TYPE_L2_TO_VXLAN:
1183 case MLX5_REFORMAT_TYPE_L2_TO_NVGRE:
1184 case MLX5_REFORMAT_TYPE_L2_TO_L2_TUNNEL:
1185 pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol2tnl_pools,
1186 MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2,
1187 pr_data->data_size);
1188 break;
1189 case MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL:
1190 pr_pool = mlx5_fs_get_pr_encap_pool(dev, &hws_pool->el2tol2tnl_pools,
1191 MLX5HWS_ACTION_TYP_REFORMAT_L2_TO_TNL_L2,
1192 pr_data->data_size);
1193 break;
1194 case MLX5_REFORMAT_TYPE_L3_TUNNEL_TO_L2:
1195 pr_pool = &hws_pool->dl3tnltol2_pool;
1196 break;
1197 case MLX5_REFORMAT_TYPE_INSERT_HDR:
1198 pr_pool = &hws_pool->insert_hdr_pool;
1199 break;
1200 default:
1201 mlx5_core_err(ns->dev, "Unknown packet-reformat type\n");
1202 return;
1203 }
1204 if (!pkt_reformat->fs_hws_action.pr_data || IS_ERR(pr_pool)) {
1205 mlx5_core_err(ns->dev, "Failed release packet-reformat\n");
1206 return;
1207 }
1208 kfree(pr_data->data);
1209 mlx5_fs_hws_pr_pool_release_pr(pr_pool, pr_data);
1210 pkt_reformat->fs_hws_action.pr_data = NULL;
1211 }
1212
1213 static struct mlx5_fs_pool *
mlx5_fs_create_mh_pool(struct mlx5_core_dev * dev,struct mlx5hws_action_mh_pattern * pattern,struct xarray * mh_pools,unsigned long index)1214 mlx5_fs_create_mh_pool(struct mlx5_core_dev *dev,
1215 struct mlx5hws_action_mh_pattern *pattern,
1216 struct xarray *mh_pools, unsigned long index)
1217 {
1218 struct mlx5_fs_pool *pool;
1219 int err;
1220
1221 pool = kzalloc(sizeof(*pool), GFP_KERNEL);
1222 if (!pool)
1223 return ERR_PTR(-ENOMEM);
1224 err = mlx5_fs_hws_mh_pool_init(pool, dev, pattern);
1225 if (err)
1226 goto free_pool;
1227 err = xa_insert(mh_pools, index, pool, GFP_KERNEL);
1228 if (err)
1229 goto cleanup_pool;
1230 return pool;
1231
1232 cleanup_pool:
1233 mlx5_fs_hws_mh_pool_cleanup(pool);
1234 free_pool:
1235 kfree(pool);
1236 return ERR_PTR(err);
1237 }
1238
1239 static void
mlx5_fs_destroy_mh_pool(struct mlx5_fs_pool * pool,struct xarray * mh_pools,unsigned long index)1240 mlx5_fs_destroy_mh_pool(struct mlx5_fs_pool *pool, struct xarray *mh_pools,
1241 unsigned long index)
1242 {
1243 xa_erase(mh_pools, index);
1244 mlx5_fs_hws_mh_pool_cleanup(pool);
1245 kfree(pool);
1246 }
1247
mlx5_cmd_hws_modify_header_alloc(struct mlx5_flow_root_namespace * ns,u8 namespace,u8 num_actions,void * modify_actions,struct mlx5_modify_hdr * modify_hdr)1248 static int mlx5_cmd_hws_modify_header_alloc(struct mlx5_flow_root_namespace *ns,
1249 u8 namespace, u8 num_actions,
1250 void *modify_actions,
1251 struct mlx5_modify_hdr *modify_hdr)
1252 {
1253 struct mlx5_fs_hws_actions_pool *hws_pool = &ns->fs_hws_context.hws_pool;
1254 struct mlx5hws_action_mh_pattern pattern = {};
1255 struct mlx5_fs_hws_mh *mh_data = NULL;
1256 struct mlx5hws_action *hws_action;
1257 struct mlx5_fs_pool *pool;
1258 unsigned long i, cnt = 0;
1259 bool known_pattern;
1260 int err;
1261
1262 pattern.sz = MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto) * num_actions;
1263 pattern.data = modify_actions;
1264
1265 known_pattern = false;
1266 xa_for_each(&hws_pool->mh_pools, i, pool) {
1267 if (mlx5_fs_hws_mh_pool_match(pool, &pattern)) {
1268 known_pattern = true;
1269 break;
1270 }
1271 cnt++;
1272 }
1273
1274 if (!known_pattern) {
1275 pool = mlx5_fs_create_mh_pool(ns->dev, &pattern,
1276 &hws_pool->mh_pools, cnt);
1277 if (IS_ERR(pool))
1278 return PTR_ERR(pool);
1279 }
1280 mh_data = mlx5_fs_hws_mh_pool_acquire_mh(pool);
1281 if (IS_ERR(mh_data)) {
1282 err = PTR_ERR(mh_data);
1283 goto destroy_pool;
1284 }
1285 hws_action = mh_data->bulk->hws_action;
1286 mh_data->data = kmemdup(pattern.data, pattern.sz, GFP_KERNEL);
1287 if (!mh_data->data) {
1288 err = -ENOMEM;
1289 goto release_mh;
1290 }
1291 modify_hdr->fs_hws_action.mh_data = mh_data;
1292 modify_hdr->fs_hws_action.fs_pool = pool;
1293 modify_hdr->owner = MLX5_FLOW_RESOURCE_OWNER_SW;
1294 modify_hdr->fs_hws_action.hws_action = hws_action;
1295
1296 return 0;
1297
1298 release_mh:
1299 mlx5_fs_hws_mh_pool_release_mh(pool, mh_data);
1300 destroy_pool:
1301 if (!known_pattern)
1302 mlx5_fs_destroy_mh_pool(pool, &hws_pool->mh_pools, cnt);
1303 return err;
1304 }
1305
mlx5_cmd_hws_modify_header_dealloc(struct mlx5_flow_root_namespace * ns,struct mlx5_modify_hdr * modify_hdr)1306 static void mlx5_cmd_hws_modify_header_dealloc(struct mlx5_flow_root_namespace *ns,
1307 struct mlx5_modify_hdr *modify_hdr)
1308 {
1309 struct mlx5_fs_hws_mh *mh_data;
1310 struct mlx5_fs_pool *pool;
1311
1312 if (!modify_hdr->fs_hws_action.fs_pool || !modify_hdr->fs_hws_action.mh_data) {
1313 mlx5_core_err(ns->dev, "Failed release modify-header\n");
1314 return;
1315 }
1316
1317 mh_data = modify_hdr->fs_hws_action.mh_data;
1318 kfree(mh_data->data);
1319 pool = modify_hdr->fs_hws_action.fs_pool;
1320 mlx5_fs_hws_mh_pool_release_mh(pool, mh_data);
1321 modify_hdr->fs_hws_action.mh_data = NULL;
1322 }
1323
mlx5_cmd_hws_create_match_definer(struct mlx5_flow_root_namespace * ns,u16 format_id,u32 * match_mask)1324 static int mlx5_cmd_hws_create_match_definer(struct mlx5_flow_root_namespace *ns,
1325 u16 format_id, u32 *match_mask)
1326 {
1327 return -EOPNOTSUPP;
1328 }
1329
mlx5_cmd_hws_destroy_match_definer(struct mlx5_flow_root_namespace * ns,int definer_id)1330 static int mlx5_cmd_hws_destroy_match_definer(struct mlx5_flow_root_namespace *ns,
1331 int definer_id)
1332 {
1333 return -EOPNOTSUPP;
1334 }
1335
mlx5_cmd_hws_get_capabilities(struct mlx5_flow_root_namespace * ns,enum fs_flow_table_type ft_type)1336 static u32 mlx5_cmd_hws_get_capabilities(struct mlx5_flow_root_namespace *ns,
1337 enum fs_flow_table_type ft_type)
1338 {
1339 if (ft_type != FS_FT_FDB)
1340 return 0;
1341
1342 return MLX5_FLOW_STEERING_CAP_VLAN_PUSH_ON_RX |
1343 MLX5_FLOW_STEERING_CAP_VLAN_POP_ON_TX |
1344 MLX5_FLOW_STEERING_CAP_MATCH_RANGES;
1345 }
1346
mlx5_fs_hws_is_supported(struct mlx5_core_dev * dev)1347 bool mlx5_fs_hws_is_supported(struct mlx5_core_dev *dev)
1348 {
1349 return mlx5hws_is_supported(dev);
1350 }
1351
1352 static const struct mlx5_flow_cmds mlx5_flow_cmds_hws = {
1353 .create_flow_table = mlx5_cmd_hws_create_flow_table,
1354 .destroy_flow_table = mlx5_cmd_hws_destroy_flow_table,
1355 .modify_flow_table = mlx5_cmd_hws_modify_flow_table,
1356 .update_root_ft = mlx5_cmd_hws_update_root_ft,
1357 .create_flow_group = mlx5_cmd_hws_create_flow_group,
1358 .destroy_flow_group = mlx5_cmd_hws_destroy_flow_group,
1359 .create_fte = mlx5_cmd_hws_create_fte,
1360 .delete_fte = mlx5_cmd_hws_delete_fte,
1361 .update_fte = mlx5_cmd_hws_update_fte,
1362 .packet_reformat_alloc = mlx5_cmd_hws_packet_reformat_alloc,
1363 .packet_reformat_dealloc = mlx5_cmd_hws_packet_reformat_dealloc,
1364 .modify_header_alloc = mlx5_cmd_hws_modify_header_alloc,
1365 .modify_header_dealloc = mlx5_cmd_hws_modify_header_dealloc,
1366 .create_match_definer = mlx5_cmd_hws_create_match_definer,
1367 .destroy_match_definer = mlx5_cmd_hws_destroy_match_definer,
1368 .create_ns = mlx5_cmd_hws_create_ns,
1369 .destroy_ns = mlx5_cmd_hws_destroy_ns,
1370 .set_peer = mlx5_cmd_hws_set_peer,
1371 .get_capabilities = mlx5_cmd_hws_get_capabilities,
1372 };
1373
mlx5_fs_cmd_get_hws_cmds(void)1374 const struct mlx5_flow_cmds *mlx5_fs_cmd_get_hws_cmds(void)
1375 {
1376 return &mlx5_flow_cmds_hws;
1377 }
1378