1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2016 6WIND S.A.
3 * Copyright 2016 Mellanox Technologies, Ltd
10 #include <sys/queue.h>
12 #include <rte_common.h>
13 #include <rte_ether.h>
14 #include <ethdev_driver.h>
15 #include <rte_eal_paging.h>
17 #include <rte_cycles.h>
18 #include <rte_flow_driver.h>
19 #include <rte_malloc.h>
22 #include <mlx5_glue.h>
23 #include <mlx5_devx_cmds.h>
25 #include <mlx5_malloc.h>
27 #include "mlx5_defs.h"
29 #include "mlx5_flow.h"
30 #include "mlx5_flow_os.h"
33 #include "mlx5_common_os.h"
34 #include "rte_pmd_mlx5.h"
36 struct tunnel_default_miss_ctx {
40 struct rte_flow_action_rss action_rss;
41 struct rte_flow_action_queue miss_queue;
42 struct rte_flow_action_jump miss_jump;
48 flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
49 struct rte_flow *flow,
50 const struct rte_flow_attr *attr,
51 const struct rte_flow_action *app_actions,
53 struct tunnel_default_miss_ctx *ctx,
54 struct rte_flow_error *error);
55 static struct mlx5_flow_tunnel *
56 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id);
58 mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel);
60 tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
61 const struct mlx5_flow_tunnel *tunnel,
62 uint32_t group, uint32_t *table,
63 struct rte_flow_error *error);
65 static struct mlx5_flow_workspace *mlx5_flow_push_thread_workspace(void);
66 static void mlx5_flow_pop_thread_workspace(void);
69 /** Device flow drivers. */
70 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
72 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
74 const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
75 [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
76 #if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H)
77 [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
79 [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
80 [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
83 /** Helper macro to build input graph for mlx5_flow_expand_rss(). */
84 #define MLX5_FLOW_EXPAND_RSS_NEXT(...) \
89 /** Node object of input graph for mlx5_flow_expand_rss(). */
90 struct mlx5_flow_expand_node {
91 const int *const next;
93 * List of next node indexes. Index 0 is interpreted as a terminator.
95 const enum rte_flow_item_type type;
96 /**< Pattern item type of current node. */
99 * RSS types bit-field associated with this node
100 * (see ETH_RSS_* definitions).
103 /**< optional expand field. Default 0 to expand, 1 not go deeper. */
106 /** Object returned by mlx5_flow_expand_rss(). */
107 struct mlx5_flow_expand_rss {
109 /**< Number of entries @p patterns and @p priorities. */
111 struct rte_flow_item *pattern; /**< Expanded pattern array. */
112 uint32_t priority; /**< Priority offset for each expansion. */
116 static enum rte_flow_item_type
117 mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item)
119 enum rte_flow_item_type ret = RTE_FLOW_ITEM_TYPE_VOID;
120 uint16_t ether_type = 0;
121 uint16_t ether_type_m;
122 uint8_t ip_next_proto = 0;
123 uint8_t ip_next_proto_m;
125 if (item == NULL || item->spec == NULL)
127 switch (item->type) {
128 case RTE_FLOW_ITEM_TYPE_ETH:
130 ether_type_m = ((const struct rte_flow_item_eth *)
133 ether_type_m = rte_flow_item_eth_mask.type;
134 if (ether_type_m != RTE_BE16(0xFFFF))
136 ether_type = ((const struct rte_flow_item_eth *)
138 if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4)
139 ret = RTE_FLOW_ITEM_TYPE_IPV4;
140 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6)
141 ret = RTE_FLOW_ITEM_TYPE_IPV6;
142 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN)
143 ret = RTE_FLOW_ITEM_TYPE_VLAN;
145 ret = RTE_FLOW_ITEM_TYPE_END;
147 case RTE_FLOW_ITEM_TYPE_VLAN:
149 ether_type_m = ((const struct rte_flow_item_vlan *)
150 (item->mask))->inner_type;
152 ether_type_m = rte_flow_item_vlan_mask.inner_type;
153 if (ether_type_m != RTE_BE16(0xFFFF))
155 ether_type = ((const struct rte_flow_item_vlan *)
156 (item->spec))->inner_type;
157 if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4)
158 ret = RTE_FLOW_ITEM_TYPE_IPV4;
159 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6)
160 ret = RTE_FLOW_ITEM_TYPE_IPV6;
161 else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN)
162 ret = RTE_FLOW_ITEM_TYPE_VLAN;
164 ret = RTE_FLOW_ITEM_TYPE_END;
166 case RTE_FLOW_ITEM_TYPE_IPV4:
168 ip_next_proto_m = ((const struct rte_flow_item_ipv4 *)
169 (item->mask))->hdr.next_proto_id;
172 rte_flow_item_ipv4_mask.hdr.next_proto_id;
173 if (ip_next_proto_m != 0xFF)
175 ip_next_proto = ((const struct rte_flow_item_ipv4 *)
176 (item->spec))->hdr.next_proto_id;
177 if (ip_next_proto == IPPROTO_UDP)
178 ret = RTE_FLOW_ITEM_TYPE_UDP;
179 else if (ip_next_proto == IPPROTO_TCP)
180 ret = RTE_FLOW_ITEM_TYPE_TCP;
181 else if (ip_next_proto == IPPROTO_IP)
182 ret = RTE_FLOW_ITEM_TYPE_IPV4;
183 else if (ip_next_proto == IPPROTO_IPV6)
184 ret = RTE_FLOW_ITEM_TYPE_IPV6;
186 ret = RTE_FLOW_ITEM_TYPE_END;
188 case RTE_FLOW_ITEM_TYPE_IPV6:
190 ip_next_proto_m = ((const struct rte_flow_item_ipv6 *)
191 (item->mask))->hdr.proto;
194 rte_flow_item_ipv6_mask.hdr.proto;
195 if (ip_next_proto_m != 0xFF)
197 ip_next_proto = ((const struct rte_flow_item_ipv6 *)
198 (item->spec))->hdr.proto;
199 if (ip_next_proto == IPPROTO_UDP)
200 ret = RTE_FLOW_ITEM_TYPE_UDP;
201 else if (ip_next_proto == IPPROTO_TCP)
202 ret = RTE_FLOW_ITEM_TYPE_TCP;
203 else if (ip_next_proto == IPPROTO_IP)
204 ret = RTE_FLOW_ITEM_TYPE_IPV4;
205 else if (ip_next_proto == IPPROTO_IPV6)
206 ret = RTE_FLOW_ITEM_TYPE_IPV6;
208 ret = RTE_FLOW_ITEM_TYPE_END;
211 ret = RTE_FLOW_ITEM_TYPE_VOID;
217 #define MLX5_RSS_EXP_ELT_N 16
220 * Expand RSS flows into several possible flows according to the RSS hash
221 * fields requested and the driver capabilities.
224 * Buffer to store the result expansion.
226 * Buffer size in bytes. If 0, @p buf can be NULL.
230 * RSS types to expand (see ETH_RSS_* definitions).
232 * Input graph to expand @p pattern according to @p types.
233 * @param[in] graph_root_index
234 * Index of root node in @p graph, typically 0.
237 * A positive value representing the size of @p buf in bytes regardless of
238 * @p size on success, a negative errno value otherwise and rte_errno is
239 * set, the following errors are defined:
241 * -E2BIG: graph-depth @p graph is too deep.
244 mlx5_flow_expand_rss(struct mlx5_flow_expand_rss *buf, size_t size,
245 const struct rte_flow_item *pattern, uint64_t types,
246 const struct mlx5_flow_expand_node graph[],
247 int graph_root_index)
249 const struct rte_flow_item *item;
250 const struct mlx5_flow_expand_node *node = &graph[graph_root_index];
251 const int *next_node;
252 const int *stack[MLX5_RSS_EXP_ELT_N];
254 struct rte_flow_item flow_items[MLX5_RSS_EXP_ELT_N];
257 size_t user_pattern_size = 0;
259 const struct mlx5_flow_expand_node *next = NULL;
260 struct rte_flow_item missed_item;
263 const struct rte_flow_item *last_item = NULL;
265 memset(&missed_item, 0, sizeof(missed_item));
266 lsize = offsetof(struct mlx5_flow_expand_rss, entry) +
267 MLX5_RSS_EXP_ELT_N * sizeof(buf->entry[0]);
269 buf->entry[0].priority = 0;
270 buf->entry[0].pattern = (void *)&buf->entry[MLX5_RSS_EXP_ELT_N];
272 addr = buf->entry[0].pattern;
274 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
275 if (item->type != RTE_FLOW_ITEM_TYPE_VOID)
277 for (i = 0; node->next && node->next[i]; ++i) {
278 next = &graph[node->next[i]];
279 if (next->type == item->type)
284 user_pattern_size += sizeof(*item);
286 user_pattern_size += sizeof(*item); /* Handle END item. */
287 lsize += user_pattern_size;
288 /* Copy the user pattern in the first entry of the buffer. */
290 rte_memcpy(addr, pattern, user_pattern_size);
291 addr = (void *)(((uintptr_t)addr) + user_pattern_size);
294 /* Start expanding. */
295 memset(flow_items, 0, sizeof(flow_items));
296 user_pattern_size -= sizeof(*item);
298 * Check if the last valid item has spec set, need complete pattern,
299 * and the pattern can be used for expansion.
301 missed_item.type = mlx5_flow_expand_rss_item_complete(last_item);
302 if (missed_item.type == RTE_FLOW_ITEM_TYPE_END) {
303 /* Item type END indicates expansion is not required. */
306 if (missed_item.type != RTE_FLOW_ITEM_TYPE_VOID) {
309 for (i = 0; node->next && node->next[i]; ++i) {
310 next = &graph[node->next[i]];
311 if (next->type == missed_item.type) {
312 flow_items[0].type = missed_item.type;
313 flow_items[1].type = RTE_FLOW_ITEM_TYPE_END;
319 if (next && missed) {
320 elt = 2; /* missed item + item end. */
322 lsize += elt * sizeof(*item) + user_pattern_size;
323 if ((node->rss_types & types) && lsize <= size) {
324 buf->entry[buf->entries].priority = 1;
325 buf->entry[buf->entries].pattern = addr;
327 rte_memcpy(addr, buf->entry[0].pattern,
329 addr = (void *)(((uintptr_t)addr) + user_pattern_size);
330 rte_memcpy(addr, flow_items, elt * sizeof(*item));
331 addr = (void *)(((uintptr_t)addr) +
332 elt * sizeof(*item));
335 memset(flow_items, 0, sizeof(flow_items));
336 next_node = node->next;
337 stack[stack_pos] = next_node;
338 node = next_node ? &graph[*next_node] : NULL;
340 flow_items[stack_pos].type = node->type;
341 if (node->rss_types & types) {
343 * compute the number of items to copy from the
344 * expansion and copy it.
345 * When the stack_pos is 0, there are 1 element in it,
346 * plus the addition END item.
349 flow_items[stack_pos + 1].type = RTE_FLOW_ITEM_TYPE_END;
350 lsize += elt * sizeof(*item) + user_pattern_size;
352 size_t n = elt * sizeof(*item);
354 buf->entry[buf->entries].priority =
355 stack_pos + 1 + missed;
356 buf->entry[buf->entries].pattern = addr;
358 rte_memcpy(addr, buf->entry[0].pattern,
360 addr = (void *)(((uintptr_t)addr) +
362 rte_memcpy(addr, &missed_item,
363 missed * sizeof(*item));
364 addr = (void *)(((uintptr_t)addr) +
365 missed * sizeof(*item));
366 rte_memcpy(addr, flow_items, n);
367 addr = (void *)(((uintptr_t)addr) + n);
371 if (!node->optional && node->next) {
372 next_node = node->next;
373 if (stack_pos++ == MLX5_RSS_EXP_ELT_N) {
377 stack[stack_pos] = next_node;
378 } else if (*(next_node + 1)) {
379 /* Follow up with the next possibility. */
382 /* Move to the next path. */
384 next_node = stack[--stack_pos];
386 stack[stack_pos] = next_node;
388 node = *next_node ? &graph[*next_node] : NULL;
393 enum mlx5_expansion {
395 MLX5_EXPANSION_ROOT_OUTER,
396 MLX5_EXPANSION_ROOT_ETH_VLAN,
397 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
398 MLX5_EXPANSION_OUTER_ETH,
399 MLX5_EXPANSION_OUTER_ETH_VLAN,
400 MLX5_EXPANSION_OUTER_VLAN,
401 MLX5_EXPANSION_OUTER_IPV4,
402 MLX5_EXPANSION_OUTER_IPV4_UDP,
403 MLX5_EXPANSION_OUTER_IPV4_TCP,
404 MLX5_EXPANSION_OUTER_IPV6,
405 MLX5_EXPANSION_OUTER_IPV6_UDP,
406 MLX5_EXPANSION_OUTER_IPV6_TCP,
407 MLX5_EXPANSION_VXLAN,
408 MLX5_EXPANSION_VXLAN_GPE,
410 MLX5_EXPANSION_GRE_KEY,
413 MLX5_EXPANSION_ETH_VLAN,
416 MLX5_EXPANSION_IPV4_UDP,
417 MLX5_EXPANSION_IPV4_TCP,
419 MLX5_EXPANSION_IPV6_UDP,
420 MLX5_EXPANSION_IPV6_TCP,
423 /** Supported expansion of items. */
424 static const struct mlx5_flow_expand_node mlx5_support_expansion[] = {
425 [MLX5_EXPANSION_ROOT] = {
426 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
428 MLX5_EXPANSION_IPV6),
429 .type = RTE_FLOW_ITEM_TYPE_END,
431 [MLX5_EXPANSION_ROOT_OUTER] = {
432 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
433 MLX5_EXPANSION_OUTER_IPV4,
434 MLX5_EXPANSION_OUTER_IPV6),
435 .type = RTE_FLOW_ITEM_TYPE_END,
437 [MLX5_EXPANSION_ROOT_ETH_VLAN] = {
438 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
439 .type = RTE_FLOW_ITEM_TYPE_END,
441 [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
442 .next = MLX5_FLOW_EXPAND_RSS_NEXT
443 (MLX5_EXPANSION_OUTER_ETH_VLAN),
444 .type = RTE_FLOW_ITEM_TYPE_END,
446 [MLX5_EXPANSION_OUTER_ETH] = {
447 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
448 MLX5_EXPANSION_OUTER_IPV6,
449 MLX5_EXPANSION_MPLS),
450 .type = RTE_FLOW_ITEM_TYPE_ETH,
453 [MLX5_EXPANSION_OUTER_ETH_VLAN] = {
454 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
455 .type = RTE_FLOW_ITEM_TYPE_ETH,
458 [MLX5_EXPANSION_OUTER_VLAN] = {
459 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
460 MLX5_EXPANSION_OUTER_IPV6),
461 .type = RTE_FLOW_ITEM_TYPE_VLAN,
463 [MLX5_EXPANSION_OUTER_IPV4] = {
464 .next = MLX5_FLOW_EXPAND_RSS_NEXT
465 (MLX5_EXPANSION_OUTER_IPV4_UDP,
466 MLX5_EXPANSION_OUTER_IPV4_TCP,
469 MLX5_EXPANSION_IPV6),
470 .type = RTE_FLOW_ITEM_TYPE_IPV4,
471 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
472 ETH_RSS_NONFRAG_IPV4_OTHER,
474 [MLX5_EXPANSION_OUTER_IPV4_UDP] = {
475 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
476 MLX5_EXPANSION_VXLAN_GPE),
477 .type = RTE_FLOW_ITEM_TYPE_UDP,
478 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
480 [MLX5_EXPANSION_OUTER_IPV4_TCP] = {
481 .type = RTE_FLOW_ITEM_TYPE_TCP,
482 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
484 [MLX5_EXPANSION_OUTER_IPV6] = {
485 .next = MLX5_FLOW_EXPAND_RSS_NEXT
486 (MLX5_EXPANSION_OUTER_IPV6_UDP,
487 MLX5_EXPANSION_OUTER_IPV6_TCP,
491 .type = RTE_FLOW_ITEM_TYPE_IPV6,
492 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
493 ETH_RSS_NONFRAG_IPV6_OTHER,
495 [MLX5_EXPANSION_OUTER_IPV6_UDP] = {
496 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
497 MLX5_EXPANSION_VXLAN_GPE),
498 .type = RTE_FLOW_ITEM_TYPE_UDP,
499 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
501 [MLX5_EXPANSION_OUTER_IPV6_TCP] = {
502 .type = RTE_FLOW_ITEM_TYPE_TCP,
503 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
505 [MLX5_EXPANSION_VXLAN] = {
506 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
508 MLX5_EXPANSION_IPV6),
509 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
511 [MLX5_EXPANSION_VXLAN_GPE] = {
512 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
514 MLX5_EXPANSION_IPV6),
515 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
517 [MLX5_EXPANSION_GRE] = {
518 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
520 MLX5_EXPANSION_GRE_KEY),
521 .type = RTE_FLOW_ITEM_TYPE_GRE,
523 [MLX5_EXPANSION_GRE_KEY] = {
524 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
525 MLX5_EXPANSION_IPV6),
526 .type = RTE_FLOW_ITEM_TYPE_GRE_KEY,
529 [MLX5_EXPANSION_MPLS] = {
530 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
531 MLX5_EXPANSION_IPV6),
532 .type = RTE_FLOW_ITEM_TYPE_MPLS,
534 [MLX5_EXPANSION_ETH] = {
535 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
536 MLX5_EXPANSION_IPV6),
537 .type = RTE_FLOW_ITEM_TYPE_ETH,
539 [MLX5_EXPANSION_ETH_VLAN] = {
540 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
541 .type = RTE_FLOW_ITEM_TYPE_ETH,
543 [MLX5_EXPANSION_VLAN] = {
544 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
545 MLX5_EXPANSION_IPV6),
546 .type = RTE_FLOW_ITEM_TYPE_VLAN,
548 [MLX5_EXPANSION_IPV4] = {
549 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
550 MLX5_EXPANSION_IPV4_TCP),
551 .type = RTE_FLOW_ITEM_TYPE_IPV4,
552 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
553 ETH_RSS_NONFRAG_IPV4_OTHER,
555 [MLX5_EXPANSION_IPV4_UDP] = {
556 .type = RTE_FLOW_ITEM_TYPE_UDP,
557 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
559 [MLX5_EXPANSION_IPV4_TCP] = {
560 .type = RTE_FLOW_ITEM_TYPE_TCP,
561 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
563 [MLX5_EXPANSION_IPV6] = {
564 .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
565 MLX5_EXPANSION_IPV6_TCP),
566 .type = RTE_FLOW_ITEM_TYPE_IPV6,
567 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
568 ETH_RSS_NONFRAG_IPV6_OTHER,
570 [MLX5_EXPANSION_IPV6_UDP] = {
571 .type = RTE_FLOW_ITEM_TYPE_UDP,
572 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
574 [MLX5_EXPANSION_IPV6_TCP] = {
575 .type = RTE_FLOW_ITEM_TYPE_TCP,
576 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
580 static struct rte_flow_action_handle *
581 mlx5_action_handle_create(struct rte_eth_dev *dev,
582 const struct rte_flow_indir_action_conf *conf,
583 const struct rte_flow_action *action,
584 struct rte_flow_error *error);
585 static int mlx5_action_handle_destroy
586 (struct rte_eth_dev *dev,
587 struct rte_flow_action_handle *handle,
588 struct rte_flow_error *error);
589 static int mlx5_action_handle_update
590 (struct rte_eth_dev *dev,
591 struct rte_flow_action_handle *handle,
593 struct rte_flow_error *error);
594 static int mlx5_action_handle_query
595 (struct rte_eth_dev *dev,
596 const struct rte_flow_action_handle *handle,
598 struct rte_flow_error *error);
600 mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
601 struct rte_flow_tunnel *app_tunnel,
602 struct rte_flow_action **actions,
603 uint32_t *num_of_actions,
604 struct rte_flow_error *error);
606 mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
607 struct rte_flow_tunnel *app_tunnel,
608 struct rte_flow_item **items,
609 uint32_t *num_of_items,
610 struct rte_flow_error *error);
612 mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
613 struct rte_flow_item *pmd_items,
614 uint32_t num_items, struct rte_flow_error *err);
616 mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
617 struct rte_flow_action *pmd_actions,
618 uint32_t num_actions,
619 struct rte_flow_error *err);
621 mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
623 struct rte_flow_restore_info *info,
624 struct rte_flow_error *err);
626 static const struct rte_flow_ops mlx5_flow_ops = {
627 .validate = mlx5_flow_validate,
628 .create = mlx5_flow_create,
629 .destroy = mlx5_flow_destroy,
630 .flush = mlx5_flow_flush,
631 .isolate = mlx5_flow_isolate,
632 .query = mlx5_flow_query,
633 .dev_dump = mlx5_flow_dev_dump,
634 .get_aged_flows = mlx5_flow_get_aged_flows,
635 .action_handle_create = mlx5_action_handle_create,
636 .action_handle_destroy = mlx5_action_handle_destroy,
637 .action_handle_update = mlx5_action_handle_update,
638 .action_handle_query = mlx5_action_handle_query,
639 .tunnel_decap_set = mlx5_flow_tunnel_decap_set,
640 .tunnel_match = mlx5_flow_tunnel_match,
641 .tunnel_action_decap_release = mlx5_flow_tunnel_action_release,
642 .tunnel_item_release = mlx5_flow_tunnel_item_release,
643 .get_restore_info = mlx5_flow_tunnel_get_restore_info,
646 /* Tunnel information. */
647 struct mlx5_flow_tunnel_info {
648 uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
649 uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
652 static struct mlx5_flow_tunnel_info tunnels_info[] = {
654 .tunnel = MLX5_FLOW_LAYER_VXLAN,
655 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
658 .tunnel = MLX5_FLOW_LAYER_GENEVE,
659 .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP,
662 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
663 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
666 .tunnel = MLX5_FLOW_LAYER_GRE,
667 .ptype = RTE_PTYPE_TUNNEL_GRE,
670 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
671 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
674 .tunnel = MLX5_FLOW_LAYER_MPLS,
675 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
678 .tunnel = MLX5_FLOW_LAYER_NVGRE,
679 .ptype = RTE_PTYPE_TUNNEL_NVGRE,
682 .tunnel = MLX5_FLOW_LAYER_IPIP,
683 .ptype = RTE_PTYPE_TUNNEL_IP,
686 .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP,
687 .ptype = RTE_PTYPE_TUNNEL_IP,
690 .tunnel = MLX5_FLOW_LAYER_GTP,
691 .ptype = RTE_PTYPE_TUNNEL_GTPU,
698 * Translate tag ID to register.
701 * Pointer to the Ethernet device structure.
703 * The feature that request the register.
705 * The request register ID.
707 * Error description in case of any.
710 * The request register on success, a negative errno
711 * value otherwise and rte_errno is set.
714 mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
715 enum mlx5_feature_name feature,
717 struct rte_flow_error *error)
719 struct mlx5_priv *priv = dev->data->dev_private;
720 struct mlx5_dev_config *config = &priv->config;
721 enum modify_reg start_reg;
722 bool skip_mtr_reg = false;
725 case MLX5_HAIRPIN_RX:
727 case MLX5_HAIRPIN_TX:
729 case MLX5_METADATA_RX:
730 switch (config->dv_xmeta_en) {
731 case MLX5_XMETA_MODE_LEGACY:
733 case MLX5_XMETA_MODE_META16:
735 case MLX5_XMETA_MODE_META32:
739 case MLX5_METADATA_TX:
741 case MLX5_METADATA_FDB:
742 switch (config->dv_xmeta_en) {
743 case MLX5_XMETA_MODE_LEGACY:
745 case MLX5_XMETA_MODE_META16:
747 case MLX5_XMETA_MODE_META32:
752 switch (config->dv_xmeta_en) {
753 case MLX5_XMETA_MODE_LEGACY:
755 case MLX5_XMETA_MODE_META16:
757 case MLX5_XMETA_MODE_META32:
763 * If meter color and meter id share one register, flow match
764 * should use the meter color register for match.
766 if (priv->mtr_reg_share)
767 return priv->mtr_color_reg;
769 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
772 case MLX5_ASO_FLOW_HIT:
773 case MLX5_ASO_CONNTRACK:
774 /* All features use the same REG_C. */
775 MLX5_ASSERT(priv->mtr_color_reg != REG_NON);
776 return priv->mtr_color_reg;
779 * Metadata COPY_MARK register using is in meter suffix sub
780 * flow while with meter. It's safe to share the same register.
782 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
785 * If meter is enable, it will engage the register for color
786 * match and flow match. If meter color match is not using the
787 * REG_C_2, need to skip the REG_C_x be used by meter color
789 * If meter is disable, free to use all available registers.
791 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
792 (priv->mtr_reg_share ? REG_C_3 : REG_C_4);
793 skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2);
794 if (id > (uint32_t)(REG_C_7 - start_reg))
795 return rte_flow_error_set(error, EINVAL,
796 RTE_FLOW_ERROR_TYPE_ITEM,
797 NULL, "invalid tag id");
798 if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NON)
799 return rte_flow_error_set(error, ENOTSUP,
800 RTE_FLOW_ERROR_TYPE_ITEM,
801 NULL, "unsupported tag id");
803 * This case means meter is using the REG_C_x great than 2.
804 * Take care not to conflict with meter color REG_C_x.
805 * If the available index REG_C_y >= REG_C_x, skip the
808 if (skip_mtr_reg && config->flow_mreg_c
809 [id + start_reg - REG_C_0] >= priv->mtr_color_reg) {
810 if (id >= (uint32_t)(REG_C_7 - start_reg))
811 return rte_flow_error_set(error, EINVAL,
812 RTE_FLOW_ERROR_TYPE_ITEM,
813 NULL, "invalid tag id");
814 if (config->flow_mreg_c
815 [id + 1 + start_reg - REG_C_0] != REG_NON)
816 return config->flow_mreg_c
817 [id + 1 + start_reg - REG_C_0];
818 return rte_flow_error_set(error, ENOTSUP,
819 RTE_FLOW_ERROR_TYPE_ITEM,
820 NULL, "unsupported tag id");
822 return config->flow_mreg_c[id + start_reg - REG_C_0];
825 return rte_flow_error_set(error, EINVAL,
826 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
827 NULL, "invalid feature name");
831 * Check extensive flow metadata register support.
834 * Pointer to rte_eth_dev structure.
837 * True if device supports extensive flow metadata register, otherwise false.
840 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
842 struct mlx5_priv *priv = dev->data->dev_private;
843 struct mlx5_dev_config *config = &priv->config;
846 * Having available reg_c can be regarded inclusively as supporting
847 * extensive flow metadata register, which could mean,
848 * - metadata register copy action by modify header.
849 * - 16 modify header actions is supported.
850 * - reg_c's are preserved across different domain (FDB and NIC) on
851 * packet loopback by flow lookup miss.
853 return config->flow_mreg_c[2] != REG_NON;
857 * Get the lowest priority.
860 * Pointer to the Ethernet device structure.
861 * @param[in] attributes
862 * Pointer to device flow rule attributes.
865 * The value of lowest priority of flow.
868 mlx5_get_lowest_priority(struct rte_eth_dev *dev,
869 const struct rte_flow_attr *attr)
871 struct mlx5_priv *priv = dev->data->dev_private;
873 if (!attr->group && !attr->transfer)
874 return priv->config.flow_prio - 2;
875 return MLX5_NON_ROOT_FLOW_MAX_PRIO - 1;
879 * Calculate matcher priority of the flow.
882 * Pointer to the Ethernet device structure.
884 * Pointer to device flow rule attributes.
885 * @param[in] subpriority
886 * The priority based on the items.
888 * The matcher priority of the flow.
891 mlx5_get_matcher_priority(struct rte_eth_dev *dev,
892 const struct rte_flow_attr *attr,
893 uint32_t subpriority)
895 uint16_t priority = (uint16_t)attr->priority;
896 struct mlx5_priv *priv = dev->data->dev_private;
898 if (!attr->group && !attr->transfer) {
899 if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
900 priority = priv->config.flow_prio - 1;
901 return mlx5_os_flow_adjust_priority(dev, priority, subpriority);
903 if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)
904 priority = MLX5_NON_ROOT_FLOW_MAX_PRIO;
905 return priority * 3 + subpriority;
909 * Verify the @p item specifications (spec, last, mask) are compatible with the
913 * Item specification.
915 * @p item->mask or flow default bit-masks.
916 * @param[in] nic_mask
917 * Bit-masks covering supported fields by the NIC to compare with user mask.
919 * Bit-masks size in bytes.
920 * @param[in] range_accepted
921 * True if range of values is accepted for specific fields, false otherwise.
923 * Pointer to error structure.
926 * 0 on success, a negative errno value otherwise and rte_errno is set.
929 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
931 const uint8_t *nic_mask,
934 struct rte_flow_error *error)
938 MLX5_ASSERT(nic_mask);
939 for (i = 0; i < size; ++i)
940 if ((nic_mask[i] | mask[i]) != nic_mask[i])
941 return rte_flow_error_set(error, ENOTSUP,
942 RTE_FLOW_ERROR_TYPE_ITEM,
944 "mask enables non supported"
946 if (!item->spec && (item->mask || item->last))
947 return rte_flow_error_set(error, EINVAL,
948 RTE_FLOW_ERROR_TYPE_ITEM, item,
949 "mask/last without a spec is not"
951 if (item->spec && item->last && !range_accepted) {
957 for (i = 0; i < size; ++i) {
958 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
959 last[i] = ((const uint8_t *)item->last)[i] & mask[i];
961 ret = memcmp(spec, last, size);
963 return rte_flow_error_set(error, EINVAL,
964 RTE_FLOW_ERROR_TYPE_ITEM,
966 "range is not valid");
972 * Adjust the hash fields according to the @p flow information.
974 * @param[in] dev_flow.
975 * Pointer to the mlx5_flow.
977 * 1 when the hash field is for a tunnel item.
978 * @param[in] layer_types
980 * @param[in] hash_fields
984 * The hash fields that should be used.
987 mlx5_flow_hashfields_adjust(struct mlx5_flow_rss_desc *rss_desc,
988 int tunnel __rte_unused, uint64_t layer_types,
989 uint64_t hash_fields)
991 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
992 int rss_request_inner = rss_desc->level >= 2;
994 /* Check RSS hash level for tunnel. */
995 if (tunnel && rss_request_inner)
996 hash_fields |= IBV_RX_HASH_INNER;
997 else if (tunnel || rss_request_inner)
1000 /* Check if requested layer matches RSS hash fields. */
1001 if (!(rss_desc->types & layer_types))
1007 * Lookup and set the ptype in the data Rx part. A single Ptype can be used,
1008 * if several tunnel rules are used on this queue, the tunnel ptype will be
1012 * Rx queue to update.
1015 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
1018 uint32_t tunnel_ptype = 0;
1020 /* Look up for the ptype to use. */
1021 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
1022 if (!rxq_ctrl->flow_tunnels_n[i])
1024 if (!tunnel_ptype) {
1025 tunnel_ptype = tunnels_info[i].ptype;
1031 rxq_ctrl->rxq.tunnel = tunnel_ptype;
1035 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
1039 * Pointer to the Ethernet device structure.
1040 * @param[in] dev_handle
1041 * Pointer to device flow handle structure.
1044 flow_drv_rxq_flags_set(struct rte_eth_dev *dev,
1045 struct mlx5_flow_handle *dev_handle)
1047 struct mlx5_priv *priv = dev->data->dev_private;
1048 const int mark = dev_handle->mark;
1049 const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
1050 struct mlx5_ind_table_obj *ind_tbl = NULL;
1053 if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1054 struct mlx5_hrxq *hrxq;
1056 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1057 dev_handle->rix_hrxq);
1059 ind_tbl = hrxq->ind_table;
1060 } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
1061 struct mlx5_shared_action_rss *shared_rss;
1063 shared_rss = mlx5_ipool_get
1064 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
1065 dev_handle->rix_srss);
1067 ind_tbl = shared_rss->ind_tbl;
1071 for (i = 0; i != ind_tbl->queues_n; ++i) {
1072 int idx = ind_tbl->queues[i];
1073 struct mlx5_rxq_ctrl *rxq_ctrl =
1074 container_of((*priv->rxqs)[idx],
1075 struct mlx5_rxq_ctrl, rxq);
1078 * To support metadata register copy on Tx loopback,
1079 * this must be always enabled (metadata may arive
1080 * from other port - not from local flows only.
1082 if (priv->config.dv_flow_en &&
1083 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1084 mlx5_flow_ext_mreg_supported(dev)) {
1085 rxq_ctrl->rxq.mark = 1;
1086 rxq_ctrl->flow_mark_n = 1;
1088 rxq_ctrl->rxq.mark = 1;
1089 rxq_ctrl->flow_mark_n++;
1094 /* Increase the counter matching the flow. */
1095 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
1096 if ((tunnels_info[j].tunnel &
1097 dev_handle->layers) ==
1098 tunnels_info[j].tunnel) {
1099 rxq_ctrl->flow_tunnels_n[j]++;
1103 flow_rxq_tunnel_ptype_update(rxq_ctrl);
1109 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
1112 * Pointer to the Ethernet device structure.
1114 * Pointer to flow structure.
1117 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
1119 struct mlx5_priv *priv = dev->data->dev_private;
1120 uint32_t handle_idx;
1121 struct mlx5_flow_handle *dev_handle;
1123 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1124 handle_idx, dev_handle, next)
1125 flow_drv_rxq_flags_set(dev, dev_handle);
1129 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
1130 * device flow if no other flow uses it with the same kind of request.
1133 * Pointer to Ethernet device.
1134 * @param[in] dev_handle
1135 * Pointer to the device flow handle structure.
1138 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev,
1139 struct mlx5_flow_handle *dev_handle)
1141 struct mlx5_priv *priv = dev->data->dev_private;
1142 const int mark = dev_handle->mark;
1143 const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL);
1144 struct mlx5_ind_table_obj *ind_tbl = NULL;
1147 if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) {
1148 struct mlx5_hrxq *hrxq;
1150 hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ],
1151 dev_handle->rix_hrxq);
1153 ind_tbl = hrxq->ind_table;
1154 } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) {
1155 struct mlx5_shared_action_rss *shared_rss;
1157 shared_rss = mlx5_ipool_get
1158 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
1159 dev_handle->rix_srss);
1161 ind_tbl = shared_rss->ind_tbl;
1165 MLX5_ASSERT(dev->data->dev_started);
1166 for (i = 0; i != ind_tbl->queues_n; ++i) {
1167 int idx = ind_tbl->queues[i];
1168 struct mlx5_rxq_ctrl *rxq_ctrl =
1169 container_of((*priv->rxqs)[idx],
1170 struct mlx5_rxq_ctrl, rxq);
1172 if (priv->config.dv_flow_en &&
1173 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1174 mlx5_flow_ext_mreg_supported(dev)) {
1175 rxq_ctrl->rxq.mark = 1;
1176 rxq_ctrl->flow_mark_n = 1;
1178 rxq_ctrl->flow_mark_n--;
1179 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
1184 /* Decrease the counter matching the flow. */
1185 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
1186 if ((tunnels_info[j].tunnel &
1187 dev_handle->layers) ==
1188 tunnels_info[j].tunnel) {
1189 rxq_ctrl->flow_tunnels_n[j]--;
1193 flow_rxq_tunnel_ptype_update(rxq_ctrl);
1199 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
1200 * @p flow if no other flow uses it with the same kind of request.
1203 * Pointer to Ethernet device.
1205 * Pointer to the flow.
1208 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
1210 struct mlx5_priv *priv = dev->data->dev_private;
1211 uint32_t handle_idx;
1212 struct mlx5_flow_handle *dev_handle;
1214 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
1215 handle_idx, dev_handle, next)
1216 flow_drv_rxq_flags_trim(dev, dev_handle);
1220 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
1223 * Pointer to Ethernet device.
1226 flow_rxq_flags_clear(struct rte_eth_dev *dev)
1228 struct mlx5_priv *priv = dev->data->dev_private;
1231 for (i = 0; i != priv->rxqs_n; ++i) {
1232 struct mlx5_rxq_ctrl *rxq_ctrl;
1235 if (!(*priv->rxqs)[i])
1237 rxq_ctrl = container_of((*priv->rxqs)[i],
1238 struct mlx5_rxq_ctrl, rxq);
1239 rxq_ctrl->flow_mark_n = 0;
1240 rxq_ctrl->rxq.mark = 0;
1241 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
1242 rxq_ctrl->flow_tunnels_n[j] = 0;
1243 rxq_ctrl->rxq.tunnel = 0;
1248 * Set the Rx queue dynamic metadata (mask and offset) for a flow
1251 * Pointer to the Ethernet device structure.
1254 mlx5_flow_rxq_dynf_metadata_set(struct rte_eth_dev *dev)
1256 struct mlx5_priv *priv = dev->data->dev_private;
1257 struct mlx5_rxq_data *data;
1260 for (i = 0; i != priv->rxqs_n; ++i) {
1261 if (!(*priv->rxqs)[i])
1263 data = (*priv->rxqs)[i];
1264 if (!rte_flow_dynf_metadata_avail()) {
1265 data->dynf_meta = 0;
1266 data->flow_meta_mask = 0;
1267 data->flow_meta_offset = -1;
1268 data->flow_meta_port_mask = 0;
1270 data->dynf_meta = 1;
1271 data->flow_meta_mask = rte_flow_dynf_metadata_mask;
1272 data->flow_meta_offset = rte_flow_dynf_metadata_offs;
1273 data->flow_meta_port_mask = (uint32_t)~0;
1274 if (priv->config.dv_xmeta_en == MLX5_XMETA_MODE_META16)
1275 data->flow_meta_port_mask >>= 16;
1281 * return a pointer to the desired action in the list of actions.
1283 * @param[in] actions
1284 * The list of actions to search the action in.
1286 * The action to find.
1289 * Pointer to the action in the list, if found. NULL otherwise.
1291 const struct rte_flow_action *
1292 mlx5_flow_find_action(const struct rte_flow_action *actions,
1293 enum rte_flow_action_type action)
1295 if (actions == NULL)
1297 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
1298 if (actions->type == action)
1304 * Validate the flag action.
1306 * @param[in] action_flags
1307 * Bit-fields that holds the actions detected until now.
1309 * Attributes of flow that includes this action.
1311 * Pointer to error structure.
1314 * 0 on success, a negative errno value otherwise and rte_errno is set.
1317 mlx5_flow_validate_action_flag(uint64_t action_flags,
1318 const struct rte_flow_attr *attr,
1319 struct rte_flow_error *error)
1321 if (action_flags & MLX5_FLOW_ACTION_MARK)
1322 return rte_flow_error_set(error, EINVAL,
1323 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1324 "can't mark and flag in same flow");
1325 if (action_flags & MLX5_FLOW_ACTION_FLAG)
1326 return rte_flow_error_set(error, EINVAL,
1327 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1329 " actions in same flow");
1331 return rte_flow_error_set(error, ENOTSUP,
1332 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1333 "flag action not supported for "
1339 * Validate the mark action.
1342 * Pointer to the queue action.
1343 * @param[in] action_flags
1344 * Bit-fields that holds the actions detected until now.
1346 * Attributes of flow that includes this action.
1348 * Pointer to error structure.
1351 * 0 on success, a negative errno value otherwise and rte_errno is set.
1354 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
1355 uint64_t action_flags,
1356 const struct rte_flow_attr *attr,
1357 struct rte_flow_error *error)
1359 const struct rte_flow_action_mark *mark = action->conf;
1362 return rte_flow_error_set(error, EINVAL,
1363 RTE_FLOW_ERROR_TYPE_ACTION,
1365 "configuration cannot be null");
1366 if (mark->id >= MLX5_FLOW_MARK_MAX)
1367 return rte_flow_error_set(error, EINVAL,
1368 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1370 "mark id must in 0 <= id < "
1371 RTE_STR(MLX5_FLOW_MARK_MAX));
1372 if (action_flags & MLX5_FLOW_ACTION_FLAG)
1373 return rte_flow_error_set(error, EINVAL,
1374 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1375 "can't flag and mark in same flow");
1376 if (action_flags & MLX5_FLOW_ACTION_MARK)
1377 return rte_flow_error_set(error, EINVAL,
1378 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1379 "can't have 2 mark actions in same"
1382 return rte_flow_error_set(error, ENOTSUP,
1383 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1384 "mark action not supported for "
1390 * Validate the drop action.
1392 * @param[in] action_flags
1393 * Bit-fields that holds the actions detected until now.
1395 * Attributes of flow that includes this action.
1397 * Pointer to error structure.
1400 * 0 on success, a negative errno value otherwise and rte_errno is set.
1403 mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused,
1404 const struct rte_flow_attr *attr,
1405 struct rte_flow_error *error)
1408 return rte_flow_error_set(error, ENOTSUP,
1409 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1410 "drop action not supported for "
1416 * Validate the queue action.
1419 * Pointer to the queue action.
1420 * @param[in] action_flags
1421 * Bit-fields that holds the actions detected until now.
1423 * Pointer to the Ethernet device structure.
1425 * Attributes of flow that includes this action.
1427 * Pointer to error structure.
1430 * 0 on success, a negative errno value otherwise and rte_errno is set.
1433 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
1434 uint64_t action_flags,
1435 struct rte_eth_dev *dev,
1436 const struct rte_flow_attr *attr,
1437 struct rte_flow_error *error)
1439 struct mlx5_priv *priv = dev->data->dev_private;
1440 const struct rte_flow_action_queue *queue = action->conf;
1442 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1443 return rte_flow_error_set(error, EINVAL,
1444 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1445 "can't have 2 fate actions in"
1448 return rte_flow_error_set(error, EINVAL,
1449 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1450 NULL, "No Rx queues configured");
1451 if (queue->index >= priv->rxqs_n)
1452 return rte_flow_error_set(error, EINVAL,
1453 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1455 "queue index out of range");
1456 if (!(*priv->rxqs)[queue->index])
1457 return rte_flow_error_set(error, EINVAL,
1458 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1460 "queue is not configured");
1462 return rte_flow_error_set(error, ENOTSUP,
1463 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1464 "queue action not supported for "
1470 * Validate the rss action.
1473 * Pointer to the Ethernet device structure.
1475 * Pointer to the queue action.
1477 * Pointer to error structure.
1480 * 0 on success, a negative errno value otherwise and rte_errno is set.
1483 mlx5_validate_action_rss(struct rte_eth_dev *dev,
1484 const struct rte_flow_action *action,
1485 struct rte_flow_error *error)
1487 struct mlx5_priv *priv = dev->data->dev_private;
1488 const struct rte_flow_action_rss *rss = action->conf;
1489 enum mlx5_rxq_type rxq_type = MLX5_RXQ_TYPE_UNDEFINED;
1492 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1493 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
1494 return rte_flow_error_set(error, ENOTSUP,
1495 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1497 "RSS hash function not supported");
1498 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1503 return rte_flow_error_set(error, ENOTSUP,
1504 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1506 "tunnel RSS is not supported");
1507 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
1508 if (rss->key_len == 0 && rss->key != NULL)
1509 return rte_flow_error_set(error, ENOTSUP,
1510 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1512 "RSS hash key length 0");
1513 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
1514 return rte_flow_error_set(error, ENOTSUP,
1515 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1517 "RSS hash key too small");
1518 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
1519 return rte_flow_error_set(error, ENOTSUP,
1520 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1522 "RSS hash key too large");
1523 if (rss->queue_num > priv->config.ind_table_max_size)
1524 return rte_flow_error_set(error, ENOTSUP,
1525 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1527 "number of queues too large");
1528 if (rss->types & MLX5_RSS_HF_MASK)
1529 return rte_flow_error_set(error, ENOTSUP,
1530 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1532 "some RSS protocols are not"
1534 if ((rss->types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) &&
1535 !(rss->types & ETH_RSS_IP))
1536 return rte_flow_error_set(error, EINVAL,
1537 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1538 "L3 partial RSS requested but L3 RSS"
1539 " type not specified");
1540 if ((rss->types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) &&
1541 !(rss->types & (ETH_RSS_UDP | ETH_RSS_TCP)))
1542 return rte_flow_error_set(error, EINVAL,
1543 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1544 "L4 partial RSS requested but L4 RSS"
1545 " type not specified");
1547 return rte_flow_error_set(error, EINVAL,
1548 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1549 NULL, "No Rx queues configured");
1550 if (!rss->queue_num)
1551 return rte_flow_error_set(error, EINVAL,
1552 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1553 NULL, "No queues configured");
1554 for (i = 0; i != rss->queue_num; ++i) {
1555 struct mlx5_rxq_ctrl *rxq_ctrl;
1557 if (rss->queue[i] >= priv->rxqs_n)
1558 return rte_flow_error_set
1560 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1561 &rss->queue[i], "queue index out of range");
1562 if (!(*priv->rxqs)[rss->queue[i]])
1563 return rte_flow_error_set
1564 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1565 &rss->queue[i], "queue is not configured");
1566 rxq_ctrl = container_of((*priv->rxqs)[rss->queue[i]],
1567 struct mlx5_rxq_ctrl, rxq);
1569 rxq_type = rxq_ctrl->type;
1570 if (rxq_type != rxq_ctrl->type)
1571 return rte_flow_error_set
1572 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1574 "combining hairpin and regular RSS queues is not supported");
1580 * Validate the rss action.
1583 * Pointer to the queue action.
1584 * @param[in] action_flags
1585 * Bit-fields that holds the actions detected until now.
1587 * Pointer to the Ethernet device structure.
1589 * Attributes of flow that includes this action.
1590 * @param[in] item_flags
1591 * Items that were detected.
1593 * Pointer to error structure.
1596 * 0 on success, a negative errno value otherwise and rte_errno is set.
1599 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
1600 uint64_t action_flags,
1601 struct rte_eth_dev *dev,
1602 const struct rte_flow_attr *attr,
1603 uint64_t item_flags,
1604 struct rte_flow_error *error)
1606 const struct rte_flow_action_rss *rss = action->conf;
1607 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1610 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1611 return rte_flow_error_set(error, EINVAL,
1612 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1613 "can't have 2 fate actions"
1615 ret = mlx5_validate_action_rss(dev, action, error);
1619 return rte_flow_error_set(error, ENOTSUP,
1620 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1621 "rss action not supported for "
1623 if (rss->level > 1 && !tunnel)
1624 return rte_flow_error_set(error, EINVAL,
1625 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1626 "inner RSS is not supported for "
1627 "non-tunnel flows");
1628 if ((item_flags & MLX5_FLOW_LAYER_ECPRI) &&
1629 !(item_flags & MLX5_FLOW_LAYER_INNER_L4_UDP)) {
1630 return rte_flow_error_set(error, EINVAL,
1631 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1632 "RSS on eCPRI is not supported now");
1638 * Validate the default miss action.
1640 * @param[in] action_flags
1641 * Bit-fields that holds the actions detected until now.
1643 * Pointer to error structure.
1646 * 0 on success, a negative errno value otherwise and rte_errno is set.
1649 mlx5_flow_validate_action_default_miss(uint64_t action_flags,
1650 const struct rte_flow_attr *attr,
1651 struct rte_flow_error *error)
1653 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1654 return rte_flow_error_set(error, EINVAL,
1655 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1656 "can't have 2 fate actions in"
1659 return rte_flow_error_set(error, ENOTSUP,
1660 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1661 "default miss action not supported "
1664 return rte_flow_error_set(error, ENOTSUP,
1665 RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL,
1666 "only group 0 is supported");
1668 return rte_flow_error_set(error, ENOTSUP,
1669 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1670 NULL, "transfer is not supported");
1675 * Validate the count action.
1678 * Pointer to the Ethernet device structure.
1680 * Attributes of flow that includes this action.
1682 * Pointer to error structure.
1685 * 0 on success, a negative errno value otherwise and rte_errno is set.
1688 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
1689 const struct rte_flow_attr *attr,
1690 struct rte_flow_error *error)
1693 return rte_flow_error_set(error, ENOTSUP,
1694 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1695 "count action not supported for "
1701 * Validate the ASO CT action.
1704 * Pointer to the Ethernet device structure.
1705 * @param[in] conntrack
1706 * Pointer to the CT action profile.
1708 * Pointer to error structure.
1711 * 0 on success, a negative errno value otherwise and rte_errno is set.
1714 mlx5_validate_action_ct(struct rte_eth_dev *dev,
1715 const struct rte_flow_action_conntrack *conntrack,
1716 struct rte_flow_error *error)
1720 if (conntrack->state > RTE_FLOW_CONNTRACK_STATE_TIME_WAIT)
1721 return rte_flow_error_set(error, EINVAL,
1722 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1723 "Invalid CT state");
1724 if (conntrack->last_index > RTE_FLOW_CONNTRACK_FLAG_RST)
1725 return rte_flow_error_set(error, EINVAL,
1726 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1727 "Invalid last TCP packet flag");
1732 * Verify the @p attributes will be correctly understood by the NIC and store
1733 * them in the @p flow if everything is correct.
1736 * Pointer to the Ethernet device structure.
1737 * @param[in] attributes
1738 * Pointer to flow attributes
1740 * Pointer to error structure.
1743 * 0 on success, a negative errno value otherwise and rte_errno is set.
1746 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1747 const struct rte_flow_attr *attributes,
1748 struct rte_flow_error *error)
1750 struct mlx5_priv *priv = dev->data->dev_private;
1751 uint32_t priority_max = priv->config.flow_prio - 1;
1753 if (attributes->group)
1754 return rte_flow_error_set(error, ENOTSUP,
1755 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1756 NULL, "groups is not supported");
1757 if (attributes->priority != MLX5_FLOW_LOWEST_PRIO_INDICATOR &&
1758 attributes->priority >= priority_max)
1759 return rte_flow_error_set(error, ENOTSUP,
1760 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1761 NULL, "priority out of range");
1762 if (attributes->egress)
1763 return rte_flow_error_set(error, ENOTSUP,
1764 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1765 "egress is not supported");
1766 if (attributes->transfer && !priv->config.dv_esw_en)
1767 return rte_flow_error_set(error, ENOTSUP,
1768 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1769 NULL, "transfer is not supported");
1770 if (!attributes->ingress)
1771 return rte_flow_error_set(error, EINVAL,
1772 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1774 "ingress attribute is mandatory");
1779 * Validate ICMP6 item.
1782 * Item specification.
1783 * @param[in] item_flags
1784 * Bit-fields that holds the items detected until now.
1785 * @param[in] ext_vlan_sup
1786 * Whether extended VLAN features are supported or not.
1788 * Pointer to error structure.
1791 * 0 on success, a negative errno value otherwise and rte_errno is set.
1794 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
1795 uint64_t item_flags,
1796 uint8_t target_protocol,
1797 struct rte_flow_error *error)
1799 const struct rte_flow_item_icmp6 *mask = item->mask;
1800 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1801 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1802 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1803 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1804 MLX5_FLOW_LAYER_OUTER_L4;
1807 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
1808 return rte_flow_error_set(error, EINVAL,
1809 RTE_FLOW_ERROR_TYPE_ITEM, item,
1810 "protocol filtering not compatible"
1811 " with ICMP6 layer");
1812 if (!(item_flags & l3m))
1813 return rte_flow_error_set(error, EINVAL,
1814 RTE_FLOW_ERROR_TYPE_ITEM, item,
1815 "IPv6 is mandatory to filter on"
1817 if (item_flags & l4m)
1818 return rte_flow_error_set(error, EINVAL,
1819 RTE_FLOW_ERROR_TYPE_ITEM, item,
1820 "multiple L4 layers not supported");
1822 mask = &rte_flow_item_icmp6_mask;
1823 ret = mlx5_flow_item_acceptable
1824 (item, (const uint8_t *)mask,
1825 (const uint8_t *)&rte_flow_item_icmp6_mask,
1826 sizeof(struct rte_flow_item_icmp6),
1827 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
1834 * Validate ICMP item.
1837 * Item specification.
1838 * @param[in] item_flags
1839 * Bit-fields that holds the items detected until now.
1841 * Pointer to error structure.
1844 * 0 on success, a negative errno value otherwise and rte_errno is set.
1847 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
1848 uint64_t item_flags,
1849 uint8_t target_protocol,
1850 struct rte_flow_error *error)
1852 const struct rte_flow_item_icmp *mask = item->mask;
1853 const struct rte_flow_item_icmp nic_mask = {
1854 .hdr.icmp_type = 0xff,
1855 .hdr.icmp_code = 0xff,
1856 .hdr.icmp_ident = RTE_BE16(0xffff),
1857 .hdr.icmp_seq_nb = RTE_BE16(0xffff),
1859 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1860 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1861 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1862 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1863 MLX5_FLOW_LAYER_OUTER_L4;
1866 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
1867 return rte_flow_error_set(error, EINVAL,
1868 RTE_FLOW_ERROR_TYPE_ITEM, item,
1869 "protocol filtering not compatible"
1870 " with ICMP layer");
1871 if (!(item_flags & l3m))
1872 return rte_flow_error_set(error, EINVAL,
1873 RTE_FLOW_ERROR_TYPE_ITEM, item,
1874 "IPv4 is mandatory to filter"
1876 if (item_flags & l4m)
1877 return rte_flow_error_set(error, EINVAL,
1878 RTE_FLOW_ERROR_TYPE_ITEM, item,
1879 "multiple L4 layers not supported");
1882 ret = mlx5_flow_item_acceptable
1883 (item, (const uint8_t *)mask,
1884 (const uint8_t *)&nic_mask,
1885 sizeof(struct rte_flow_item_icmp),
1886 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
1893 * Validate Ethernet item.
1896 * Item specification.
1897 * @param[in] item_flags
1898 * Bit-fields that holds the items detected until now.
1900 * Pointer to error structure.
1903 * 0 on success, a negative errno value otherwise and rte_errno is set.
1906 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1907 uint64_t item_flags, bool ext_vlan_sup,
1908 struct rte_flow_error *error)
1910 const struct rte_flow_item_eth *mask = item->mask;
1911 const struct rte_flow_item_eth nic_mask = {
1912 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1913 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1914 .type = RTE_BE16(0xffff),
1915 .has_vlan = ext_vlan_sup ? 1 : 0,
1918 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1919 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1920 MLX5_FLOW_LAYER_OUTER_L2;
1922 if (item_flags & ethm)
1923 return rte_flow_error_set(error, ENOTSUP,
1924 RTE_FLOW_ERROR_TYPE_ITEM, item,
1925 "multiple L2 layers not supported");
1926 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
1927 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
1928 return rte_flow_error_set(error, EINVAL,
1929 RTE_FLOW_ERROR_TYPE_ITEM, item,
1930 "L2 layer should not follow "
1932 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
1933 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
1934 return rte_flow_error_set(error, EINVAL,
1935 RTE_FLOW_ERROR_TYPE_ITEM, item,
1936 "L2 layer should not follow VLAN");
1938 mask = &rte_flow_item_eth_mask;
1939 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1940 (const uint8_t *)&nic_mask,
1941 sizeof(struct rte_flow_item_eth),
1942 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
1947 * Validate VLAN item.
1950 * Item specification.
1951 * @param[in] item_flags
1952 * Bit-fields that holds the items detected until now.
1954 * Ethernet device flow is being created on.
1956 * Pointer to error structure.
1959 * 0 on success, a negative errno value otherwise and rte_errno is set.
1962 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1963 uint64_t item_flags,
1964 struct rte_eth_dev *dev,
1965 struct rte_flow_error *error)
1967 const struct rte_flow_item_vlan *spec = item->spec;
1968 const struct rte_flow_item_vlan *mask = item->mask;
1969 const struct rte_flow_item_vlan nic_mask = {
1970 .tci = RTE_BE16(UINT16_MAX),
1971 .inner_type = RTE_BE16(UINT16_MAX),
1973 uint16_t vlan_tag = 0;
1974 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1976 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1977 MLX5_FLOW_LAYER_INNER_L4) :
1978 (MLX5_FLOW_LAYER_OUTER_L3 |
1979 MLX5_FLOW_LAYER_OUTER_L4);
1980 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1981 MLX5_FLOW_LAYER_OUTER_VLAN;
1983 if (item_flags & vlanm)
1984 return rte_flow_error_set(error, EINVAL,
1985 RTE_FLOW_ERROR_TYPE_ITEM, item,
1986 "multiple VLAN layers not supported");
1987 else if ((item_flags & l34m) != 0)
1988 return rte_flow_error_set(error, EINVAL,
1989 RTE_FLOW_ERROR_TYPE_ITEM, item,
1990 "VLAN cannot follow L3/L4 layer");
1992 mask = &rte_flow_item_vlan_mask;
1993 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1994 (const uint8_t *)&nic_mask,
1995 sizeof(struct rte_flow_item_vlan),
1996 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
1999 if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
2000 struct mlx5_priv *priv = dev->data->dev_private;
2002 if (priv->vmwa_context) {
2004 * Non-NULL context means we have a virtual machine
2005 * and SR-IOV enabled, we have to create VLAN interface
2006 * to make hypervisor to setup E-Switch vport
2007 * context correctly. We avoid creating the multiple
2008 * VLAN interfaces, so we cannot support VLAN tag mask.
2010 return rte_flow_error_set(error, EINVAL,
2011 RTE_FLOW_ERROR_TYPE_ITEM,
2013 "VLAN tag mask is not"
2014 " supported in virtual"
2019 vlan_tag = spec->tci;
2020 vlan_tag &= mask->tci;
2023 * From verbs perspective an empty VLAN is equivalent
2024 * to a packet without VLAN layer.
2027 return rte_flow_error_set(error, EINVAL,
2028 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
2030 "VLAN cannot be empty");
2035 * Validate IPV4 item.
2038 * Item specification.
2039 * @param[in] item_flags
2040 * Bit-fields that holds the items detected until now.
2041 * @param[in] last_item
2042 * Previous validated item in the pattern items.
2043 * @param[in] ether_type
2044 * Type in the ethernet layer header (including dot1q).
2045 * @param[in] acc_mask
2046 * Acceptable mask, if NULL default internal default mask
2047 * will be used to check whether item fields are supported.
2048 * @param[in] range_accepted
2049 * True if range of values is accepted for specific fields, false otherwise.
2051 * Pointer to error structure.
2054 * 0 on success, a negative errno value otherwise and rte_errno is set.
2057 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
2058 uint64_t item_flags,
2060 uint16_t ether_type,
2061 const struct rte_flow_item_ipv4 *acc_mask,
2062 bool range_accepted,
2063 struct rte_flow_error *error)
2065 const struct rte_flow_item_ipv4 *mask = item->mask;
2066 const struct rte_flow_item_ipv4 *spec = item->spec;
2067 const struct rte_flow_item_ipv4 nic_mask = {
2069 .src_addr = RTE_BE32(0xffffffff),
2070 .dst_addr = RTE_BE32(0xffffffff),
2071 .type_of_service = 0xff,
2072 .next_proto_id = 0xff,
2075 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2076 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2077 MLX5_FLOW_LAYER_OUTER_L3;
2078 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2079 MLX5_FLOW_LAYER_OUTER_L4;
2081 uint8_t next_proto = 0xFF;
2082 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
2083 MLX5_FLOW_LAYER_OUTER_VLAN |
2084 MLX5_FLOW_LAYER_INNER_VLAN);
2086 if ((last_item & l2_vlan) && ether_type &&
2087 ether_type != RTE_ETHER_TYPE_IPV4)
2088 return rte_flow_error_set(error, EINVAL,
2089 RTE_FLOW_ERROR_TYPE_ITEM, item,
2090 "IPv4 cannot follow L2/VLAN layer "
2091 "which ether type is not IPv4");
2092 if (item_flags & MLX5_FLOW_LAYER_IPIP) {
2094 next_proto = mask->hdr.next_proto_id &
2095 spec->hdr.next_proto_id;
2096 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
2097 return rte_flow_error_set(error, EINVAL,
2098 RTE_FLOW_ERROR_TYPE_ITEM,
2103 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
2104 return rte_flow_error_set(error, EINVAL,
2105 RTE_FLOW_ERROR_TYPE_ITEM, item,
2106 "wrong tunnel type - IPv6 specified "
2107 "but IPv4 item provided");
2108 if (item_flags & l3m)
2109 return rte_flow_error_set(error, ENOTSUP,
2110 RTE_FLOW_ERROR_TYPE_ITEM, item,
2111 "multiple L3 layers not supported");
2112 else if (item_flags & l4m)
2113 return rte_flow_error_set(error, EINVAL,
2114 RTE_FLOW_ERROR_TYPE_ITEM, item,
2115 "L3 cannot follow an L4 layer.");
2116 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
2117 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
2118 return rte_flow_error_set(error, EINVAL,
2119 RTE_FLOW_ERROR_TYPE_ITEM, item,
2120 "L3 cannot follow an NVGRE layer.");
2122 mask = &rte_flow_item_ipv4_mask;
2123 else if (mask->hdr.next_proto_id != 0 &&
2124 mask->hdr.next_proto_id != 0xff)
2125 return rte_flow_error_set(error, EINVAL,
2126 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
2127 "partial mask is not supported"
2129 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2130 acc_mask ? (const uint8_t *)acc_mask
2131 : (const uint8_t *)&nic_mask,
2132 sizeof(struct rte_flow_item_ipv4),
2133 range_accepted, error);
2140 * Validate IPV6 item.
2143 * Item specification.
2144 * @param[in] item_flags
2145 * Bit-fields that holds the items detected until now.
2146 * @param[in] last_item
2147 * Previous validated item in the pattern items.
2148 * @param[in] ether_type
2149 * Type in the ethernet layer header (including dot1q).
2150 * @param[in] acc_mask
2151 * Acceptable mask, if NULL default internal default mask
2152 * will be used to check whether item fields are supported.
2154 * Pointer to error structure.
2157 * 0 on success, a negative errno value otherwise and rte_errno is set.
2160 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
2161 uint64_t item_flags,
2163 uint16_t ether_type,
2164 const struct rte_flow_item_ipv6 *acc_mask,
2165 struct rte_flow_error *error)
2167 const struct rte_flow_item_ipv6 *mask = item->mask;
2168 const struct rte_flow_item_ipv6 *spec = item->spec;
2169 const struct rte_flow_item_ipv6 nic_mask = {
2172 "\xff\xff\xff\xff\xff\xff\xff\xff"
2173 "\xff\xff\xff\xff\xff\xff\xff\xff",
2175 "\xff\xff\xff\xff\xff\xff\xff\xff"
2176 "\xff\xff\xff\xff\xff\xff\xff\xff",
2177 .vtc_flow = RTE_BE32(0xffffffff),
2181 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2182 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2183 MLX5_FLOW_LAYER_OUTER_L3;
2184 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2185 MLX5_FLOW_LAYER_OUTER_L4;
2187 uint8_t next_proto = 0xFF;
2188 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
2189 MLX5_FLOW_LAYER_OUTER_VLAN |
2190 MLX5_FLOW_LAYER_INNER_VLAN);
2192 if ((last_item & l2_vlan) && ether_type &&
2193 ether_type != RTE_ETHER_TYPE_IPV6)
2194 return rte_flow_error_set(error, EINVAL,
2195 RTE_FLOW_ERROR_TYPE_ITEM, item,
2196 "IPv6 cannot follow L2/VLAN layer "
2197 "which ether type is not IPv6");
2198 if (mask && mask->hdr.proto == UINT8_MAX && spec)
2199 next_proto = spec->hdr.proto;
2200 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
2201 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
2202 return rte_flow_error_set(error, EINVAL,
2203 RTE_FLOW_ERROR_TYPE_ITEM,
2208 if (next_proto == IPPROTO_HOPOPTS ||
2209 next_proto == IPPROTO_ROUTING ||
2210 next_proto == IPPROTO_FRAGMENT ||
2211 next_proto == IPPROTO_ESP ||
2212 next_proto == IPPROTO_AH ||
2213 next_proto == IPPROTO_DSTOPTS)
2214 return rte_flow_error_set(error, EINVAL,
2215 RTE_FLOW_ERROR_TYPE_ITEM, item,
2216 "IPv6 proto (next header) should "
2217 "not be set as extension header");
2218 if (item_flags & MLX5_FLOW_LAYER_IPIP)
2219 return rte_flow_error_set(error, EINVAL,
2220 RTE_FLOW_ERROR_TYPE_ITEM, item,
2221 "wrong tunnel type - IPv4 specified "
2222 "but IPv6 item provided");
2223 if (item_flags & l3m)
2224 return rte_flow_error_set(error, ENOTSUP,
2225 RTE_FLOW_ERROR_TYPE_ITEM, item,
2226 "multiple L3 layers not supported");
2227 else if (item_flags & l4m)
2228 return rte_flow_error_set(error, EINVAL,
2229 RTE_FLOW_ERROR_TYPE_ITEM, item,
2230 "L3 cannot follow an L4 layer.");
2231 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
2232 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
2233 return rte_flow_error_set(error, EINVAL,
2234 RTE_FLOW_ERROR_TYPE_ITEM, item,
2235 "L3 cannot follow an NVGRE layer.");
2237 mask = &rte_flow_item_ipv6_mask;
2238 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
2239 acc_mask ? (const uint8_t *)acc_mask
2240 : (const uint8_t *)&nic_mask,
2241 sizeof(struct rte_flow_item_ipv6),
2242 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2249 * Validate UDP item.
2252 * Item specification.
2253 * @param[in] item_flags
2254 * Bit-fields that holds the items detected until now.
2255 * @param[in] target_protocol
2256 * The next protocol in the previous item.
2257 * @param[in] flow_mask
2258 * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
2260 * Pointer to error structure.
2263 * 0 on success, a negative errno value otherwise and rte_errno is set.
2266 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
2267 uint64_t item_flags,
2268 uint8_t target_protocol,
2269 struct rte_flow_error *error)
2271 const struct rte_flow_item_udp *mask = item->mask;
2272 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2273 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2274 MLX5_FLOW_LAYER_OUTER_L3;
2275 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2276 MLX5_FLOW_LAYER_OUTER_L4;
2279 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
2280 return rte_flow_error_set(error, EINVAL,
2281 RTE_FLOW_ERROR_TYPE_ITEM, item,
2282 "protocol filtering not compatible"
2284 if (!(item_flags & l3m))
2285 return rte_flow_error_set(error, EINVAL,
2286 RTE_FLOW_ERROR_TYPE_ITEM, item,
2287 "L3 is mandatory to filter on L4");
2288 if (item_flags & l4m)
2289 return rte_flow_error_set(error, EINVAL,
2290 RTE_FLOW_ERROR_TYPE_ITEM, item,
2291 "multiple L4 layers not supported");
2293 mask = &rte_flow_item_udp_mask;
2294 ret = mlx5_flow_item_acceptable
2295 (item, (const uint8_t *)mask,
2296 (const uint8_t *)&rte_flow_item_udp_mask,
2297 sizeof(struct rte_flow_item_udp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2305 * Validate TCP item.
2308 * Item specification.
2309 * @param[in] item_flags
2310 * Bit-fields that holds the items detected until now.
2311 * @param[in] target_protocol
2312 * The next protocol in the previous item.
2314 * Pointer to error structure.
2317 * 0 on success, a negative errno value otherwise and rte_errno is set.
2320 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
2321 uint64_t item_flags,
2322 uint8_t target_protocol,
2323 const struct rte_flow_item_tcp *flow_mask,
2324 struct rte_flow_error *error)
2326 const struct rte_flow_item_tcp *mask = item->mask;
2327 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
2328 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
2329 MLX5_FLOW_LAYER_OUTER_L3;
2330 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
2331 MLX5_FLOW_LAYER_OUTER_L4;
2334 MLX5_ASSERT(flow_mask);
2335 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
2336 return rte_flow_error_set(error, EINVAL,
2337 RTE_FLOW_ERROR_TYPE_ITEM, item,
2338 "protocol filtering not compatible"
2340 if (!(item_flags & l3m))
2341 return rte_flow_error_set(error, EINVAL,
2342 RTE_FLOW_ERROR_TYPE_ITEM, item,
2343 "L3 is mandatory to filter on L4");
2344 if (item_flags & l4m)
2345 return rte_flow_error_set(error, EINVAL,
2346 RTE_FLOW_ERROR_TYPE_ITEM, item,
2347 "multiple L4 layers not supported");
2349 mask = &rte_flow_item_tcp_mask;
2350 ret = mlx5_flow_item_acceptable
2351 (item, (const uint8_t *)mask,
2352 (const uint8_t *)flow_mask,
2353 sizeof(struct rte_flow_item_tcp), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2361 * Validate VXLAN item.
2364 * Item specification.
2365 * @param[in] item_flags
2366 * Bit-fields that holds the items detected until now.
2367 * @param[in] target_protocol
2368 * The next protocol in the previous item.
2370 * Pointer to error structure.
2373 * 0 on success, a negative errno value otherwise and rte_errno is set.
2376 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
2377 uint64_t item_flags,
2378 struct rte_flow_error *error)
2380 const struct rte_flow_item_vxlan *spec = item->spec;
2381 const struct rte_flow_item_vxlan *mask = item->mask;
2386 } id = { .vlan_id = 0, };
2389 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2390 return rte_flow_error_set(error, ENOTSUP,
2391 RTE_FLOW_ERROR_TYPE_ITEM, item,
2392 "multiple tunnel layers not"
2395 * Verify only UDPv4 is present as defined in
2396 * https://tools.ietf.org/html/rfc7348
2398 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2399 return rte_flow_error_set(error, EINVAL,
2400 RTE_FLOW_ERROR_TYPE_ITEM, item,
2401 "no outer UDP layer found");
2403 mask = &rte_flow_item_vxlan_mask;
2404 ret = mlx5_flow_item_acceptable
2405 (item, (const uint8_t *)mask,
2406 (const uint8_t *)&rte_flow_item_vxlan_mask,
2407 sizeof(struct rte_flow_item_vxlan),
2408 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2412 memcpy(&id.vni[1], spec->vni, 3);
2413 memcpy(&id.vni[1], mask->vni, 3);
2415 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2416 return rte_flow_error_set(error, ENOTSUP,
2417 RTE_FLOW_ERROR_TYPE_ITEM, item,
2418 "VXLAN tunnel must be fully defined");
2423 * Validate VXLAN_GPE item.
2426 * Item specification.
2427 * @param[in] item_flags
2428 * Bit-fields that holds the items detected until now.
2430 * Pointer to the private data structure.
2431 * @param[in] target_protocol
2432 * The next protocol in the previous item.
2434 * Pointer to error structure.
2437 * 0 on success, a negative errno value otherwise and rte_errno is set.
2440 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
2441 uint64_t item_flags,
2442 struct rte_eth_dev *dev,
2443 struct rte_flow_error *error)
2445 struct mlx5_priv *priv = dev->data->dev_private;
2446 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
2447 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
2452 } id = { .vlan_id = 0, };
2454 if (!priv->config.l3_vxlan_en)
2455 return rte_flow_error_set(error, ENOTSUP,
2456 RTE_FLOW_ERROR_TYPE_ITEM, item,
2457 "L3 VXLAN is not enabled by device"
2458 " parameter and/or not configured in"
2460 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2461 return rte_flow_error_set(error, ENOTSUP,
2462 RTE_FLOW_ERROR_TYPE_ITEM, item,
2463 "multiple tunnel layers not"
2466 * Verify only UDPv4 is present as defined in
2467 * https://tools.ietf.org/html/rfc7348
2469 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2470 return rte_flow_error_set(error, EINVAL,
2471 RTE_FLOW_ERROR_TYPE_ITEM, item,
2472 "no outer UDP layer found");
2474 mask = &rte_flow_item_vxlan_gpe_mask;
2475 ret = mlx5_flow_item_acceptable
2476 (item, (const uint8_t *)mask,
2477 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
2478 sizeof(struct rte_flow_item_vxlan_gpe),
2479 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2484 return rte_flow_error_set(error, ENOTSUP,
2485 RTE_FLOW_ERROR_TYPE_ITEM,
2487 "VxLAN-GPE protocol"
2489 memcpy(&id.vni[1], spec->vni, 3);
2490 memcpy(&id.vni[1], mask->vni, 3);
2492 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2493 return rte_flow_error_set(error, ENOTSUP,
2494 RTE_FLOW_ERROR_TYPE_ITEM, item,
2495 "VXLAN-GPE tunnel must be fully"
2500 * Validate GRE Key item.
2503 * Item specification.
2504 * @param[in] item_flags
2505 * Bit flags to mark detected items.
2506 * @param[in] gre_item
2507 * Pointer to gre_item
2509 * Pointer to error structure.
2512 * 0 on success, a negative errno value otherwise and rte_errno is set.
2515 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
2516 uint64_t item_flags,
2517 const struct rte_flow_item *gre_item,
2518 struct rte_flow_error *error)
2520 const rte_be32_t *mask = item->mask;
2522 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
2523 const struct rte_flow_item_gre *gre_spec;
2524 const struct rte_flow_item_gre *gre_mask;
2526 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
2527 return rte_flow_error_set(error, ENOTSUP,
2528 RTE_FLOW_ERROR_TYPE_ITEM, item,
2529 "Multiple GRE key not support");
2530 if (!(item_flags & MLX5_FLOW_LAYER_GRE))
2531 return rte_flow_error_set(error, ENOTSUP,
2532 RTE_FLOW_ERROR_TYPE_ITEM, item,
2533 "No preceding GRE header");
2534 if (item_flags & MLX5_FLOW_LAYER_INNER)
2535 return rte_flow_error_set(error, ENOTSUP,
2536 RTE_FLOW_ERROR_TYPE_ITEM, item,
2537 "GRE key following a wrong item");
2538 gre_mask = gre_item->mask;
2540 gre_mask = &rte_flow_item_gre_mask;
2541 gre_spec = gre_item->spec;
2542 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
2543 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
2544 return rte_flow_error_set(error, EINVAL,
2545 RTE_FLOW_ERROR_TYPE_ITEM, item,
2546 "Key bit must be on");
2549 mask = &gre_key_default_mask;
2550 ret = mlx5_flow_item_acceptable
2551 (item, (const uint8_t *)mask,
2552 (const uint8_t *)&gre_key_default_mask,
2553 sizeof(rte_be32_t), MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2558 * Validate GRE item.
2561 * Item specification.
2562 * @param[in] item_flags
2563 * Bit flags to mark detected items.
2564 * @param[in] target_protocol
2565 * The next protocol in the previous item.
2567 * Pointer to error structure.
2570 * 0 on success, a negative errno value otherwise and rte_errno is set.
2573 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2574 uint64_t item_flags,
2575 uint8_t target_protocol,
2576 struct rte_flow_error *error)
2578 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2579 const struct rte_flow_item_gre *mask = item->mask;
2581 const struct rte_flow_item_gre nic_mask = {
2582 .c_rsvd0_ver = RTE_BE16(0xB000),
2583 .protocol = RTE_BE16(UINT16_MAX),
2586 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2587 return rte_flow_error_set(error, EINVAL,
2588 RTE_FLOW_ERROR_TYPE_ITEM, item,
2589 "protocol filtering not compatible"
2590 " with this GRE layer");
2591 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2592 return rte_flow_error_set(error, ENOTSUP,
2593 RTE_FLOW_ERROR_TYPE_ITEM, item,
2594 "multiple tunnel layers not"
2596 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2597 return rte_flow_error_set(error, ENOTSUP,
2598 RTE_FLOW_ERROR_TYPE_ITEM, item,
2599 "L3 Layer is missing");
2601 mask = &rte_flow_item_gre_mask;
2602 ret = mlx5_flow_item_acceptable
2603 (item, (const uint8_t *)mask,
2604 (const uint8_t *)&nic_mask,
2605 sizeof(struct rte_flow_item_gre), MLX5_ITEM_RANGE_NOT_ACCEPTED,
2609 #ifndef HAVE_MLX5DV_DR
2610 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2611 if (spec && (spec->protocol & mask->protocol))
2612 return rte_flow_error_set(error, ENOTSUP,
2613 RTE_FLOW_ERROR_TYPE_ITEM, item,
2614 "without MPLS support the"
2615 " specification cannot be used for"
2623 * Validate Geneve item.
2626 * Item specification.
2627 * @param[in] itemFlags
2628 * Bit-fields that holds the items detected until now.
2630 * Pointer to the private data structure.
2632 * Pointer to error structure.
2635 * 0 on success, a negative errno value otherwise and rte_errno is set.
2639 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2640 uint64_t item_flags,
2641 struct rte_eth_dev *dev,
2642 struct rte_flow_error *error)
2644 struct mlx5_priv *priv = dev->data->dev_private;
2645 const struct rte_flow_item_geneve *spec = item->spec;
2646 const struct rte_flow_item_geneve *mask = item->mask;
2649 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2650 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2651 const struct rte_flow_item_geneve nic_mask = {
2652 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2653 .vni = "\xff\xff\xff",
2654 .protocol = RTE_BE16(UINT16_MAX),
2657 if (!priv->config.hca_attr.tunnel_stateless_geneve_rx)
2658 return rte_flow_error_set(error, ENOTSUP,
2659 RTE_FLOW_ERROR_TYPE_ITEM, item,
2660 "L3 Geneve is not enabled by device"
2661 " parameter and/or not configured in"
2663 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2664 return rte_flow_error_set(error, ENOTSUP,
2665 RTE_FLOW_ERROR_TYPE_ITEM, item,
2666 "multiple tunnel layers not"
2669 * Verify only UDPv4 is present as defined in
2670 * https://tools.ietf.org/html/rfc7348
2672 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2673 return rte_flow_error_set(error, EINVAL,
2674 RTE_FLOW_ERROR_TYPE_ITEM, item,
2675 "no outer UDP layer found");
2677 mask = &rte_flow_item_geneve_mask;
2678 ret = mlx5_flow_item_acceptable
2679 (item, (const uint8_t *)mask,
2680 (const uint8_t *)&nic_mask,
2681 sizeof(struct rte_flow_item_geneve),
2682 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2686 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2687 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2688 MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2689 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2690 return rte_flow_error_set(error, ENOTSUP,
2691 RTE_FLOW_ERROR_TYPE_ITEM,
2693 "Geneve protocol unsupported"
2694 " fields are being used");
2695 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2696 return rte_flow_error_set
2698 RTE_FLOW_ERROR_TYPE_ITEM,
2700 "Unsupported Geneve options length");
2702 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2703 return rte_flow_error_set
2705 RTE_FLOW_ERROR_TYPE_ITEM, item,
2706 "Geneve tunnel must be fully defined");
2711 * Validate Geneve TLV option item.
2714 * Item specification.
2715 * @param[in] last_item
2716 * Previous validated item in the pattern items.
2717 * @param[in] geneve_item
2718 * Previous GENEVE item specification.
2720 * Pointer to the rte_eth_dev structure.
2722 * Pointer to error structure.
2725 * 0 on success, a negative errno value otherwise and rte_errno is set.
2728 mlx5_flow_validate_item_geneve_opt(const struct rte_flow_item *item,
2730 const struct rte_flow_item *geneve_item,
2731 struct rte_eth_dev *dev,
2732 struct rte_flow_error *error)
2734 struct mlx5_priv *priv = dev->data->dev_private;
2735 struct mlx5_dev_ctx_shared *sh = priv->sh;
2736 struct mlx5_geneve_tlv_option_resource *geneve_opt_resource;
2737 struct mlx5_hca_attr *hca_attr = &priv->config.hca_attr;
2738 uint8_t data_max_supported =
2739 hca_attr->max_geneve_tlv_option_data_len * 4;
2740 struct mlx5_dev_config *config = &priv->config;
2741 const struct rte_flow_item_geneve *geneve_spec;
2742 const struct rte_flow_item_geneve *geneve_mask;
2743 const struct rte_flow_item_geneve_opt *spec = item->spec;
2744 const struct rte_flow_item_geneve_opt *mask = item->mask;
2746 unsigned int data_len;
2747 uint8_t tlv_option_len;
2748 uint16_t optlen_m, optlen_v;
2749 const struct rte_flow_item_geneve_opt full_mask = {
2750 .option_class = RTE_BE16(0xffff),
2751 .option_type = 0xff,
2756 mask = &rte_flow_item_geneve_opt_mask;
2758 return rte_flow_error_set
2759 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2760 "Geneve TLV opt class/type/length must be specified");
2761 if ((uint32_t)spec->option_len > MLX5_GENEVE_OPTLEN_MASK)
2762 return rte_flow_error_set
2763 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2764 "Geneve TLV opt length exceeeds the limit (31)");
2765 /* Check if class type and length masks are full. */
2766 if (full_mask.option_class != mask->option_class ||
2767 full_mask.option_type != mask->option_type ||
2768 full_mask.option_len != (mask->option_len & full_mask.option_len))
2769 return rte_flow_error_set
2770 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2771 "Geneve TLV opt class/type/length masks must be full");
2772 /* Check if length is supported */
2773 if ((uint32_t)spec->option_len >
2774 config->hca_attr.max_geneve_tlv_option_data_len)
2775 return rte_flow_error_set
2776 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2777 "Geneve TLV opt length not supported");
2778 if (config->hca_attr.max_geneve_tlv_options > 1)
2780 "max_geneve_tlv_options supports more than 1 option");
2781 /* Check GENEVE item preceding. */
2782 if (!geneve_item || !(last_item & MLX5_FLOW_LAYER_GENEVE))
2783 return rte_flow_error_set
2784 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2785 "Geneve opt item must be preceded with Geneve item");
2786 geneve_spec = geneve_item->spec;
2787 geneve_mask = geneve_item->mask ? geneve_item->mask :
2788 &rte_flow_item_geneve_mask;
2789 /* Check if GENEVE TLV option size doesn't exceed option length */
2790 if (geneve_spec && (geneve_mask->ver_opt_len_o_c_rsvd0 ||
2791 geneve_spec->ver_opt_len_o_c_rsvd0)) {
2792 tlv_option_len = spec->option_len & mask->option_len;
2793 optlen_v = rte_be_to_cpu_16(geneve_spec->ver_opt_len_o_c_rsvd0);
2794 optlen_v = MLX5_GENEVE_OPTLEN_VAL(optlen_v);
2795 optlen_m = rte_be_to_cpu_16(geneve_mask->ver_opt_len_o_c_rsvd0);
2796 optlen_m = MLX5_GENEVE_OPTLEN_VAL(optlen_m);
2797 if ((optlen_v & optlen_m) <= tlv_option_len)
2798 return rte_flow_error_set
2799 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2800 "GENEVE TLV option length exceeds optlen");
2802 /* Check if length is 0 or data is 0. */
2803 if (spec->data == NULL || spec->option_len == 0)
2804 return rte_flow_error_set
2805 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2806 "Geneve TLV opt with zero data/length not supported");
2807 /* Check not all data & mask are 0. */
2808 data_len = spec->option_len * 4;
2809 if (mask->data == NULL) {
2810 for (i = 0; i < data_len; i++)
2814 return rte_flow_error_set(error, ENOTSUP,
2815 RTE_FLOW_ERROR_TYPE_ITEM, item,
2816 "Can't match on Geneve option data 0");
2818 for (i = 0; i < data_len; i++)
2819 if (spec->data[i] & mask->data[i])
2822 return rte_flow_error_set(error, ENOTSUP,
2823 RTE_FLOW_ERROR_TYPE_ITEM, item,
2824 "Can't match on Geneve option data and mask 0");
2825 /* Check data mask supported. */
2826 for (i = data_max_supported; i < data_len ; i++)
2828 return rte_flow_error_set(error, ENOTSUP,
2829 RTE_FLOW_ERROR_TYPE_ITEM, item,
2830 "Data mask is of unsupported size");
2832 /* Check GENEVE option is supported in NIC. */
2833 if (!config->hca_attr.geneve_tlv_opt)
2834 return rte_flow_error_set
2835 (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item,
2836 "Geneve TLV opt not supported");
2837 /* Check if we already have geneve option with different type/class. */
2838 rte_spinlock_lock(&sh->geneve_tlv_opt_sl);
2839 geneve_opt_resource = sh->geneve_tlv_option_resource;
2840 if (geneve_opt_resource != NULL)
2841 if (geneve_opt_resource->option_class != spec->option_class ||
2842 geneve_opt_resource->option_type != spec->option_type ||
2843 geneve_opt_resource->length != spec->option_len) {
2844 rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
2845 return rte_flow_error_set(error, ENOTSUP,
2846 RTE_FLOW_ERROR_TYPE_ITEM, item,
2847 "Only one Geneve TLV option supported");
2849 rte_spinlock_unlock(&sh->geneve_tlv_opt_sl);
2854 * Validate MPLS item.
2857 * Pointer to the rte_eth_dev structure.
2859 * Item specification.
2860 * @param[in] item_flags
2861 * Bit-fields that holds the items detected until now.
2862 * @param[in] prev_layer
2863 * The protocol layer indicated in previous item.
2865 * Pointer to error structure.
2868 * 0 on success, a negative errno value otherwise and rte_errno is set.
2871 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
2872 const struct rte_flow_item *item __rte_unused,
2873 uint64_t item_flags __rte_unused,
2874 uint64_t prev_layer __rte_unused,
2875 struct rte_flow_error *error)
2877 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
2878 const struct rte_flow_item_mpls *mask = item->mask;
2879 struct mlx5_priv *priv = dev->data->dev_private;
2882 if (!priv->config.mpls_en)
2883 return rte_flow_error_set(error, ENOTSUP,
2884 RTE_FLOW_ERROR_TYPE_ITEM, item,
2885 "MPLS not supported or"
2886 " disabled in firmware"
2888 /* MPLS over IP, UDP, GRE is allowed */
2889 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
2890 MLX5_FLOW_LAYER_OUTER_L4_UDP |
2891 MLX5_FLOW_LAYER_GRE |
2892 MLX5_FLOW_LAYER_GRE_KEY)))
2893 return rte_flow_error_set(error, EINVAL,
2894 RTE_FLOW_ERROR_TYPE_ITEM, item,
2895 "protocol filtering not compatible"
2896 " with MPLS layer");
2897 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
2898 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
2899 !(item_flags & MLX5_FLOW_LAYER_GRE))
2900 return rte_flow_error_set(error, ENOTSUP,
2901 RTE_FLOW_ERROR_TYPE_ITEM, item,
2902 "multiple tunnel layers not"
2905 mask = &rte_flow_item_mpls_mask;
2906 ret = mlx5_flow_item_acceptable
2907 (item, (const uint8_t *)mask,
2908 (const uint8_t *)&rte_flow_item_mpls_mask,
2909 sizeof(struct rte_flow_item_mpls),
2910 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2915 return rte_flow_error_set(error, ENOTSUP,
2916 RTE_FLOW_ERROR_TYPE_ITEM, item,
2917 "MPLS is not supported by Verbs, please"
2923 * Validate NVGRE item.
2926 * Item specification.
2927 * @param[in] item_flags
2928 * Bit flags to mark detected items.
2929 * @param[in] target_protocol
2930 * The next protocol in the previous item.
2932 * Pointer to error structure.
2935 * 0 on success, a negative errno value otherwise and rte_errno is set.
2938 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
2939 uint64_t item_flags,
2940 uint8_t target_protocol,
2941 struct rte_flow_error *error)
2943 const struct rte_flow_item_nvgre *mask = item->mask;
2946 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2947 return rte_flow_error_set(error, EINVAL,
2948 RTE_FLOW_ERROR_TYPE_ITEM, item,
2949 "protocol filtering not compatible"
2950 " with this GRE layer");
2951 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2952 return rte_flow_error_set(error, ENOTSUP,
2953 RTE_FLOW_ERROR_TYPE_ITEM, item,
2954 "multiple tunnel layers not"
2956 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2957 return rte_flow_error_set(error, ENOTSUP,
2958 RTE_FLOW_ERROR_TYPE_ITEM, item,
2959 "L3 Layer is missing");
2961 mask = &rte_flow_item_nvgre_mask;
2962 ret = mlx5_flow_item_acceptable
2963 (item, (const uint8_t *)mask,
2964 (const uint8_t *)&rte_flow_item_nvgre_mask,
2965 sizeof(struct rte_flow_item_nvgre),
2966 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
2973 * Validate eCPRI item.
2976 * Item specification.
2977 * @param[in] item_flags
2978 * Bit-fields that holds the items detected until now.
2979 * @param[in] last_item
2980 * Previous validated item in the pattern items.
2981 * @param[in] ether_type
2982 * Type in the ethernet layer header (including dot1q).
2983 * @param[in] acc_mask
2984 * Acceptable mask, if NULL default internal default mask
2985 * will be used to check whether item fields are supported.
2987 * Pointer to error structure.
2990 * 0 on success, a negative errno value otherwise and rte_errno is set.
2993 mlx5_flow_validate_item_ecpri(const struct rte_flow_item *item,
2994 uint64_t item_flags,
2996 uint16_t ether_type,
2997 const struct rte_flow_item_ecpri *acc_mask,
2998 struct rte_flow_error *error)
3000 const struct rte_flow_item_ecpri *mask = item->mask;
3001 const struct rte_flow_item_ecpri nic_mask = {
3005 RTE_BE32(((const struct rte_ecpri_common_hdr) {
3009 .dummy[0] = 0xFFFFFFFF,
3012 const uint64_t outer_l2_vlan = (MLX5_FLOW_LAYER_OUTER_L2 |
3013 MLX5_FLOW_LAYER_OUTER_VLAN);
3014 struct rte_flow_item_ecpri mask_lo;
3016 if (!(last_item & outer_l2_vlan) &&
3017 last_item != MLX5_FLOW_LAYER_OUTER_L4_UDP)
3018 return rte_flow_error_set(error, EINVAL,
3019 RTE_FLOW_ERROR_TYPE_ITEM, item,
3020 "eCPRI can only follow L2/VLAN layer or UDP layer");
3021 if ((last_item & outer_l2_vlan) && ether_type &&
3022 ether_type != RTE_ETHER_TYPE_ECPRI)
3023 return rte_flow_error_set(error, EINVAL,
3024 RTE_FLOW_ERROR_TYPE_ITEM, item,
3025 "eCPRI cannot follow L2/VLAN layer which ether type is not 0xAEFE");
3026 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
3027 return rte_flow_error_set(error, EINVAL,
3028 RTE_FLOW_ERROR_TYPE_ITEM, item,
3029 "eCPRI with tunnel is not supported right now");
3030 if (item_flags & MLX5_FLOW_LAYER_OUTER_L3)
3031 return rte_flow_error_set(error, ENOTSUP,
3032 RTE_FLOW_ERROR_TYPE_ITEM, item,
3033 "multiple L3 layers not supported");
3034 else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)
3035 return rte_flow_error_set(error, EINVAL,
3036 RTE_FLOW_ERROR_TYPE_ITEM, item,
3037 "eCPRI cannot coexist with a TCP layer");
3038 /* In specification, eCPRI could be over UDP layer. */
3039 else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)
3040 return rte_flow_error_set(error, EINVAL,
3041 RTE_FLOW_ERROR_TYPE_ITEM, item,
3042 "eCPRI over UDP layer is not yet supported right now");
3043 /* Mask for type field in common header could be zero. */
3045 mask = &rte_flow_item_ecpri_mask;
3046 mask_lo.hdr.common.u32 = rte_be_to_cpu_32(mask->hdr.common.u32);
3047 /* Input mask is in big-endian format. */
3048 if (mask_lo.hdr.common.type != 0 && mask_lo.hdr.common.type != 0xff)
3049 return rte_flow_error_set(error, EINVAL,
3050 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
3051 "partial mask is not supported for protocol");
3052 else if (mask_lo.hdr.common.type == 0 && mask->hdr.dummy[0] != 0)
3053 return rte_flow_error_set(error, EINVAL,
3054 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
3055 "message header mask must be after a type mask");
3056 return mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
3057 acc_mask ? (const uint8_t *)acc_mask
3058 : (const uint8_t *)&nic_mask,
3059 sizeof(struct rte_flow_item_ecpri),
3060 MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
3064 * Release resource related QUEUE/RSS action split.
3067 * Pointer to Ethernet device.
3069 * Flow to release id's from.
3072 flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
3073 struct rte_flow *flow)
3075 struct mlx5_priv *priv = dev->data->dev_private;
3076 uint32_t handle_idx;
3077 struct mlx5_flow_handle *dev_handle;
3079 SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles,
3080 handle_idx, dev_handle, next)
3081 if (dev_handle->split_flow_id &&
3082 !dev_handle->is_meter_flow_id)
3083 mlx5_ipool_free(priv->sh->ipool
3084 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
3085 dev_handle->split_flow_id);
3089 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
3090 const struct rte_flow_attr *attr __rte_unused,
3091 const struct rte_flow_item items[] __rte_unused,
3092 const struct rte_flow_action actions[] __rte_unused,
3093 bool external __rte_unused,
3094 int hairpin __rte_unused,
3095 struct rte_flow_error *error)
3097 return rte_flow_error_set(error, ENOTSUP,
3098 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3101 static struct mlx5_flow *
3102 flow_null_prepare(struct rte_eth_dev *dev __rte_unused,
3103 const struct rte_flow_attr *attr __rte_unused,
3104 const struct rte_flow_item items[] __rte_unused,
3105 const struct rte_flow_action actions[] __rte_unused,
3106 struct rte_flow_error *error)
3108 rte_flow_error_set(error, ENOTSUP,
3109 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3114 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
3115 struct mlx5_flow *dev_flow __rte_unused,
3116 const struct rte_flow_attr *attr __rte_unused,
3117 const struct rte_flow_item items[] __rte_unused,
3118 const struct rte_flow_action actions[] __rte_unused,
3119 struct rte_flow_error *error)
3121 return rte_flow_error_set(error, ENOTSUP,
3122 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3126 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
3127 struct rte_flow *flow __rte_unused,
3128 struct rte_flow_error *error)
3130 return rte_flow_error_set(error, ENOTSUP,
3131 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3135 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
3136 struct rte_flow *flow __rte_unused)
3141 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
3142 struct rte_flow *flow __rte_unused)
3147 flow_null_query(struct rte_eth_dev *dev __rte_unused,
3148 struct rte_flow *flow __rte_unused,
3149 const struct rte_flow_action *actions __rte_unused,
3150 void *data __rte_unused,
3151 struct rte_flow_error *error)
3153 return rte_flow_error_set(error, ENOTSUP,
3154 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
3158 flow_null_sync_domain(struct rte_eth_dev *dev __rte_unused,
3159 uint32_t domains __rte_unused,
3160 uint32_t flags __rte_unused)
3165 /* Void driver to protect from null pointer reference. */
3166 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
3167 .validate = flow_null_validate,
3168 .prepare = flow_null_prepare,
3169 .translate = flow_null_translate,
3170 .apply = flow_null_apply,
3171 .remove = flow_null_remove,
3172 .destroy = flow_null_destroy,
3173 .query = flow_null_query,
3174 .sync_domain = flow_null_sync_domain,
3178 * Select flow driver type according to flow attributes and device
3182 * Pointer to the dev structure.
3184 * Pointer to the flow attributes.
3187 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
3189 static enum mlx5_flow_drv_type
3190 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
3192 struct mlx5_priv *priv = dev->data->dev_private;
3193 /* The OS can determine first a specific flow type (DV, VERBS) */
3194 enum mlx5_flow_drv_type type = mlx5_flow_os_get_type();
3196 if (type != MLX5_FLOW_TYPE_MAX)
3198 /* If no OS specific type - continue with DV/VERBS selection */
3199 if (attr->transfer && priv->config.dv_esw_en)
3200 type = MLX5_FLOW_TYPE_DV;
3201 if (!attr->transfer)
3202 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
3203 MLX5_FLOW_TYPE_VERBS;
3207 #define flow_get_drv_ops(type) flow_drv_ops[type]
3210 * Flow driver validation API. This abstracts calling driver specific functions.
3211 * The type of flow driver is determined according to flow attributes.
3214 * Pointer to the dev structure.
3216 * Pointer to the flow attributes.
3218 * Pointer to the list of items.
3219 * @param[in] actions
3220 * Pointer to the list of actions.
3221 * @param[in] external
3222 * This flow rule is created by request external to PMD.
3223 * @param[in] hairpin
3224 * Number of hairpin TX actions, 0 means classic flow.
3226 * Pointer to the error structure.
3229 * 0 on success, a negative errno value otherwise and rte_errno is set.
3232 flow_drv_validate(struct rte_eth_dev *dev,
3233 const struct rte_flow_attr *attr,
3234 const struct rte_flow_item items[],
3235 const struct rte_flow_action actions[],
3236 bool external, int hairpin, struct rte_flow_error *error)
3238 const struct mlx5_flow_driver_ops *fops;
3239 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
3241 fops = flow_get_drv_ops(type);
3242 return fops->validate(dev, attr, items, actions, external,
3247 * Flow driver preparation API. This abstracts calling driver specific
3248 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
3249 * calculates the size of memory required for device flow, allocates the memory,
3250 * initializes the device flow and returns the pointer.
3253 * This function initializes device flow structure such as dv or verbs in
3254 * struct mlx5_flow. However, it is caller's responsibility to initialize the
3255 * rest. For example, adding returning device flow to flow->dev_flow list and
3256 * setting backward reference to the flow should be done out of this function.
3257 * layers field is not filled either.
3260 * Pointer to the dev structure.
3262 * Pointer to the flow attributes.
3264 * Pointer to the list of items.
3265 * @param[in] actions
3266 * Pointer to the list of actions.
3267 * @param[in] flow_idx
3268 * This memory pool index to the flow.
3270 * Pointer to the error structure.
3273 * Pointer to device flow on success, otherwise NULL and rte_errno is set.
3275 static inline struct mlx5_flow *
3276 flow_drv_prepare(struct rte_eth_dev *dev,
3277 const struct rte_flow *flow,
3278 const struct rte_flow_attr *attr,
3279 const struct rte_flow_item items[],
3280 const struct rte_flow_action actions[],
3282 struct rte_flow_error *error)
3284 const struct mlx5_flow_driver_ops *fops;
3285 enum mlx5_flow_drv_type type = flow->drv_type;
3286 struct mlx5_flow *mlx5_flow = NULL;
3288 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3289 fops = flow_get_drv_ops(type);
3290 mlx5_flow = fops->prepare(dev, attr, items, actions, error);
3292 mlx5_flow->flow_idx = flow_idx;
3297 * Flow driver translation API. This abstracts calling driver specific
3298 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
3299 * translates a generic flow into a driver flow. flow_drv_prepare() must
3303 * dev_flow->layers could be filled as a result of parsing during translation
3304 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
3305 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
3306 * flow->actions could be overwritten even though all the expanded dev_flows
3307 * have the same actions.
3310 * Pointer to the rte dev structure.
3311 * @param[in, out] dev_flow
3312 * Pointer to the mlx5 flow.
3314 * Pointer to the flow attributes.
3316 * Pointer to the list of items.
3317 * @param[in] actions
3318 * Pointer to the list of actions.
3320 * Pointer to the error structure.
3323 * 0 on success, a negative errno value otherwise and rte_errno is set.
3326 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
3327 const struct rte_flow_attr *attr,
3328 const struct rte_flow_item items[],
3329 const struct rte_flow_action actions[],
3330 struct rte_flow_error *error)
3332 const struct mlx5_flow_driver_ops *fops;
3333 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
3335 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3336 fops = flow_get_drv_ops(type);
3337 return fops->translate(dev, dev_flow, attr, items, actions, error);
3341 * Flow driver apply API. This abstracts calling driver specific functions.
3342 * Parent flow (rte_flow) should have driver type (drv_type). It applies
3343 * translated driver flows on to device. flow_drv_translate() must precede.
3346 * Pointer to Ethernet device structure.
3347 * @param[in, out] flow
3348 * Pointer to flow structure.
3350 * Pointer to error structure.
3353 * 0 on success, a negative errno value otherwise and rte_errno is set.
3356 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
3357 struct rte_flow_error *error)
3359 const struct mlx5_flow_driver_ops *fops;
3360 enum mlx5_flow_drv_type type = flow->drv_type;
3362 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3363 fops = flow_get_drv_ops(type);
3364 return fops->apply(dev, flow, error);
3368 * Flow driver destroy API. This abstracts calling driver specific functions.
3369 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
3370 * on device and releases resources of the flow.
3373 * Pointer to Ethernet device.
3374 * @param[in, out] flow
3375 * Pointer to flow structure.
3378 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
3380 const struct mlx5_flow_driver_ops *fops;
3381 enum mlx5_flow_drv_type type = flow->drv_type;
3383 flow_mreg_split_qrss_release(dev, flow);
3384 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3385 fops = flow_get_drv_ops(type);
3386 fops->destroy(dev, flow);
3390 * Flow driver find RSS policy tbl API. This abstracts calling driver
3391 * specific functions. Parent flow (rte_flow) should have driver
3392 * type (drv_type). It will find the RSS policy table that has the rss_desc.
3395 * Pointer to Ethernet device.
3396 * @param[in, out] flow
3397 * Pointer to flow structure.
3399 * Pointer to meter policy table.
3400 * @param[in] rss_desc
3401 * Pointer to rss_desc
3403 static struct mlx5_flow_meter_sub_policy *
3404 flow_drv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev,
3405 struct rte_flow *flow,
3406 struct mlx5_flow_meter_policy *policy,
3407 struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS])
3409 const struct mlx5_flow_driver_ops *fops;
3410 enum mlx5_flow_drv_type type = flow->drv_type;
3412 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
3413 fops = flow_get_drv_ops(type);
3414 return fops->meter_sub_policy_rss_prepare(dev, policy, rss_desc);
3418 * Get RSS action from the action list.
3421 * Pointer to Ethernet device.
3422 * @param[in] actions
3423 * Pointer to the list of actions.
3425 * Parent flow structure pointer.
3428 * Pointer to the RSS action if exist, else return NULL.
3430 static const struct rte_flow_action_rss*
3431 flow_get_rss_action(struct rte_eth_dev *dev,
3432 const struct rte_flow_action actions[])
3434 struct mlx5_priv *priv = dev->data->dev_private;
3435 const struct rte_flow_action_rss *rss = NULL;
3437 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3438 switch (actions->type) {
3439 case RTE_FLOW_ACTION_TYPE_RSS:
3440 rss = actions->conf;
3442 case RTE_FLOW_ACTION_TYPE_SAMPLE:
3444 const struct rte_flow_action_sample *sample =
3446 const struct rte_flow_action *act = sample->actions;
3447 for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++)
3448 if (act->type == RTE_FLOW_ACTION_TYPE_RSS)
3452 case RTE_FLOW_ACTION_TYPE_METER:
3455 struct mlx5_flow_meter_info *fm;
3456 struct mlx5_flow_meter_policy *policy;
3457 const struct rte_flow_action_meter *mtr = actions->conf;
3459 fm = mlx5_flow_meter_find(priv, mtr->mtr_id, &mtr_idx);
3461 policy = mlx5_flow_meter_policy_find(dev,
3462 fm->policy_id, NULL);
3463 if (policy && policy->is_rss)
3465 policy->act_cnt[RTE_COLOR_GREEN].rss->conf;
3477 * Get ASO age action by index.
3480 * Pointer to the Ethernet device structure.
3481 * @param[in] age_idx
3482 * Index to the ASO age action.
3485 * The specified ASO age action.
3487 struct mlx5_aso_age_action*
3488 flow_aso_age_get_by_idx(struct rte_eth_dev *dev, uint32_t age_idx)
3490 uint16_t pool_idx = age_idx & UINT16_MAX;
3491 uint16_t offset = (age_idx >> 16) & UINT16_MAX;
3492 struct mlx5_priv *priv = dev->data->dev_private;
3493 struct mlx5_aso_age_mng *mng = priv->sh->aso_age_mng;
3494 struct mlx5_aso_age_pool *pool = mng->pools[pool_idx];
3496 return &pool->actions[offset - 1];
3499 /* maps indirect action to translated direct in some actions array */
3500 struct mlx5_translated_action_handle {
3501 struct rte_flow_action_handle *action; /**< Indirect action handle. */
3502 int index; /**< Index in related array of rte_flow_action. */
3506 * Translates actions of type RTE_FLOW_ACTION_TYPE_INDIRECT to related
3507 * direct action if translation possible.
3508 * This functionality used to run same execution path for both direct and
3509 * indirect actions on flow create. All necessary preparations for indirect
3510 * action handling should be performed on *handle* actions list returned
3514 * Pointer to Ethernet device.
3515 * @param[in] actions
3516 * List of actions to translate.
3517 * @param[out] handle
3518 * List to store translated indirect action object handles.
3519 * @param[in, out] indir_n
3520 * Size of *handle* array. On return should be updated with number of
3521 * indirect actions retrieved from the *actions* list.
3522 * @param[out] translated_actions
3523 * List of actions where all indirect actions were translated to direct
3524 * if possible. NULL if no translation took place.
3526 * Pointer to the error structure.
3529 * 0 on success, a negative errno value otherwise and rte_errno is set.
3532 flow_action_handles_translate(struct rte_eth_dev *dev,
3533 const struct rte_flow_action actions[],
3534 struct mlx5_translated_action_handle *handle,
3536 struct rte_flow_action **translated_actions,
3537 struct rte_flow_error *error)
3539 struct mlx5_priv *priv = dev->data->dev_private;
3540 struct rte_flow_action *translated = NULL;
3541 size_t actions_size;
3544 struct mlx5_translated_action_handle *handle_end = NULL;
3546 for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) {
3547 if (actions[n].type != RTE_FLOW_ACTION_TYPE_INDIRECT)
3549 if (copied_n == *indir_n) {
3550 return rte_flow_error_set
3551 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
3552 NULL, "too many shared actions");
3554 rte_memcpy(&handle[copied_n].action, &actions[n].conf,
3555 sizeof(actions[n].conf));
3556 handle[copied_n].index = n;
3560 *indir_n = copied_n;
3563 actions_size = sizeof(struct rte_flow_action) * n;
3564 translated = mlx5_malloc(MLX5_MEM_ZERO, actions_size, 0, SOCKET_ID_ANY);
3569 memcpy(translated, actions, actions_size);
3570 for (handle_end = handle + copied_n; handle < handle_end; handle++) {
3571 struct mlx5_shared_action_rss *shared_rss;
3572 uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
3573 uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
3574 uint32_t idx = act_idx &
3575 ((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
3578 case MLX5_INDIRECT_ACTION_TYPE_RSS:
3579 shared_rss = mlx5_ipool_get
3580 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx);
3581 translated[handle->index].type =
3582 RTE_FLOW_ACTION_TYPE_RSS;
3583 translated[handle->index].conf =
3584 &shared_rss->origin;
3586 case MLX5_INDIRECT_ACTION_TYPE_COUNT:
3587 translated[handle->index].type =
3588 (enum rte_flow_action_type)
3589 MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
3590 translated[handle->index].conf = (void *)(uintptr_t)idx;
3592 case MLX5_INDIRECT_ACTION_TYPE_AGE:
3593 if (priv->sh->flow_hit_aso_en) {
3594 translated[handle->index].type =
3595 (enum rte_flow_action_type)
3596 MLX5_RTE_FLOW_ACTION_TYPE_AGE;
3597 translated[handle->index].conf =
3598 (void *)(uintptr_t)idx;
3602 case MLX5_INDIRECT_ACTION_TYPE_CT:
3603 if (priv->sh->ct_aso_en) {
3604 translated[handle->index].type =
3605 RTE_FLOW_ACTION_TYPE_CONNTRACK;
3606 translated[handle->index].conf =
3607 (void *)(uintptr_t)idx;
3612 mlx5_free(translated);
3613 return rte_flow_error_set
3614 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
3615 NULL, "invalid indirect action type");
3618 *translated_actions = translated;
3623 * Get Shared RSS action from the action list.
3626 * Pointer to Ethernet device.
3628 * Pointer to the list of actions.
3629 * @param[in] shared_n
3630 * Actions list length.
3633 * The MLX5 RSS action ID if exists, otherwise return 0.
3636 flow_get_shared_rss_action(struct rte_eth_dev *dev,
3637 struct mlx5_translated_action_handle *handle,
3640 struct mlx5_translated_action_handle *handle_end;
3641 struct mlx5_priv *priv = dev->data->dev_private;
3642 struct mlx5_shared_action_rss *shared_rss;
3645 for (handle_end = handle + shared_n; handle < handle_end; handle++) {
3646 uint32_t act_idx = (uint32_t)(uintptr_t)handle->action;
3647 uint32_t type = act_idx >> MLX5_INDIRECT_ACTION_TYPE_OFFSET;
3648 uint32_t idx = act_idx &
3649 ((1u << MLX5_INDIRECT_ACTION_TYPE_OFFSET) - 1);
3651 case MLX5_INDIRECT_ACTION_TYPE_RSS:
3652 shared_rss = mlx5_ipool_get
3653 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
3655 __atomic_add_fetch(&shared_rss->refcnt, 1,
3666 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
3668 const struct rte_flow_item *item;
3669 unsigned int has_vlan = 0;
3671 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
3672 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
3678 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
3679 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
3680 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
3681 MLX5_EXPANSION_ROOT_OUTER;
3685 * Get layer flags from the prefix flow.
3687 * Some flows may be split to several subflows, the prefix subflow gets the
3688 * match items and the suffix sub flow gets the actions.
3689 * Some actions need the user defined match item flags to get the detail for
3691 * This function helps the suffix flow to get the item layer flags from prefix
3694 * @param[in] dev_flow
3695 * Pointer the created preifx subflow.
3698 * The layers get from prefix subflow.
3700 static inline uint64_t
3701 flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow)
3703 uint64_t layers = 0;
3706 * Layers bits could be localization, but usually the compiler will
3707 * help to do the optimization work for source code.
3708 * If no decap actions, use the layers directly.
3710 if (!(dev_flow->act_flags & MLX5_FLOW_ACTION_DECAP))
3711 return dev_flow->handle->layers;
3712 /* Convert L3 layers with decap action. */
3713 if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4)
3714 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
3715 else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6)
3716 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
3717 /* Convert L4 layers with decap action. */
3718 if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_TCP)
3719 layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
3720 else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_UDP)
3721 layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
3726 * Get metadata split action information.
3728 * @param[in] actions
3729 * Pointer to the list of actions.
3731 * Pointer to the return pointer.
3732 * @param[out] qrss_type
3733 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
3734 * if no QUEUE/RSS is found.
3735 * @param[out] encap_idx
3736 * Pointer to the index of the encap action if exists, otherwise the last
3740 * Total number of actions.
3743 flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[],
3744 const struct rte_flow_action **qrss,
3747 const struct rte_flow_action_raw_encap *raw_encap;
3749 int raw_decap_idx = -1;
3752 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3753 switch (actions->type) {
3754 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3755 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3756 *encap_idx = actions_n;
3758 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3759 raw_decap_idx = actions_n;
3761 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3762 raw_encap = actions->conf;
3763 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
3764 *encap_idx = raw_decap_idx != -1 ?
3765 raw_decap_idx : actions_n;
3767 case RTE_FLOW_ACTION_TYPE_QUEUE:
3768 case RTE_FLOW_ACTION_TYPE_RSS:
3776 if (*encap_idx == -1)
3777 *encap_idx = actions_n;
3778 /* Count RTE_FLOW_ACTION_TYPE_END. */
3779 return actions_n + 1;
3783 * Check if the action will change packet.
3786 * Pointer to Ethernet device.
3791 * true if action will change packet, false otherwise.
3793 static bool flow_check_modify_action_type(struct rte_eth_dev *dev,
3794 enum rte_flow_action_type type)
3796 struct mlx5_priv *priv = dev->data->dev_private;
3799 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
3800 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
3801 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
3802 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
3803 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
3804 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
3805 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
3806 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
3807 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
3808 case RTE_FLOW_ACTION_TYPE_SET_TTL:
3809 case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
3810 case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
3811 case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
3812 case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
3813 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
3814 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
3815 case RTE_FLOW_ACTION_TYPE_SET_META:
3816 case RTE_FLOW_ACTION_TYPE_SET_TAG:
3817 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
3818 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3819 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3820 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3821 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3822 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3823 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3824 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
3825 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3826 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3827 case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
3829 case RTE_FLOW_ACTION_TYPE_FLAG:
3830 case RTE_FLOW_ACTION_TYPE_MARK:
3831 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY)
3841 * Check meter action from the action list.
3844 * Pointer to Ethernet device.
3845 * @param[in] actions
3846 * Pointer to the list of actions.
3847 * @param[out] has_mtr
3848 * Pointer to the meter exist flag.
3849 * @param[out] has_modify
3850 * Pointer to the flag showing there's packet change action.
3851 * @param[out] meter_id
3852 * Pointer to the meter id.
3855 * Total number of actions.
3858 flow_check_meter_action(struct rte_eth_dev *dev,
3859 const struct rte_flow_action actions[],
3860 bool *has_mtr, bool *has_modify, uint32_t *meter_id)
3862 const struct rte_flow_action_meter *mtr = NULL;
3865 MLX5_ASSERT(has_mtr);
3867 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3868 switch (actions->type) {
3869 case RTE_FLOW_ACTION_TYPE_METER:
3870 mtr = actions->conf;
3871 *meter_id = mtr->mtr_id;
3878 *has_modify |= flow_check_modify_action_type(dev,
3882 /* Count RTE_FLOW_ACTION_TYPE_END. */
3883 return actions_n + 1;
3887 * Check if the flow should be split due to hairpin.
3888 * The reason for the split is that in current HW we can't
3889 * support encap and push-vlan on Rx, so if a flow contains
3890 * these actions we move it to Tx.
3893 * Pointer to Ethernet device.
3895 * Flow rule attributes.
3896 * @param[in] actions
3897 * Associated actions (list terminated by the END action).
3900 * > 0 the number of actions and the flow should be split,
3901 * 0 when no split required.
3904 flow_check_hairpin_split(struct rte_eth_dev *dev,
3905 const struct rte_flow_attr *attr,
3906 const struct rte_flow_action actions[])
3908 int queue_action = 0;
3911 const struct rte_flow_action_queue *queue;
3912 const struct rte_flow_action_rss *rss;
3913 const struct rte_flow_action_raw_encap *raw_encap;
3914 const struct rte_eth_hairpin_conf *conf;
3918 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3919 switch (actions->type) {
3920 case RTE_FLOW_ACTION_TYPE_QUEUE:
3921 queue = actions->conf;
3924 conf = mlx5_rxq_get_hairpin_conf(dev, queue->index);
3925 if (conf == NULL || conf->tx_explicit != 0)
3930 case RTE_FLOW_ACTION_TYPE_RSS:
3931 rss = actions->conf;
3932 if (rss == NULL || rss->queue_num == 0)
3934 conf = mlx5_rxq_get_hairpin_conf(dev, rss->queue[0]);
3935 if (conf == NULL || conf->tx_explicit != 0)
3940 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3941 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3942 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3943 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3944 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
3948 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3949 raw_encap = actions->conf;
3950 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
3959 if (split && queue_action)
3964 /* Declare flow create/destroy prototype in advance. */
3966 flow_list_create(struct rte_eth_dev *dev, uint32_t *list,
3967 const struct rte_flow_attr *attr,
3968 const struct rte_flow_item items[],
3969 const struct rte_flow_action actions[],
3970 bool external, struct rte_flow_error *error);
3973 flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list,
3977 flow_dv_mreg_match_cb(struct mlx5_hlist *list __rte_unused,
3978 struct mlx5_hlist_entry *entry,
3979 uint64_t key, void *cb_ctx __rte_unused)
3981 struct mlx5_flow_mreg_copy_resource *mcp_res =
3982 container_of(entry, typeof(*mcp_res), hlist_ent);
3984 return mcp_res->mark_id != key;
3987 struct mlx5_hlist_entry *
3988 flow_dv_mreg_create_cb(struct mlx5_hlist *list, uint64_t key,
3991 struct rte_eth_dev *dev = list->ctx;
3992 struct mlx5_priv *priv = dev->data->dev_private;
3993 struct mlx5_flow_cb_ctx *ctx = cb_ctx;
3994 struct mlx5_flow_mreg_copy_resource *mcp_res;
3995 struct rte_flow_error *error = ctx->error;
3998 uint32_t mark_id = key;
3999 struct rte_flow_attr attr = {
4000 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
4003 struct mlx5_rte_flow_item_tag tag_spec = {
4006 struct rte_flow_item items[] = {
4007 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
4009 struct rte_flow_action_mark ftag = {
4012 struct mlx5_flow_action_copy_mreg cp_mreg = {
4016 struct rte_flow_action_jump jump = {
4017 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
4019 struct rte_flow_action actions[] = {
4020 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
4023 /* Fill the register fileds in the flow. */
4024 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
4028 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
4032 /* Provide the full width of FLAG specific value. */
4033 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
4034 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
4035 /* Build a new flow. */
4036 if (mark_id != MLX5_DEFAULT_COPY_ID) {
4037 items[0] = (struct rte_flow_item){
4038 .type = (enum rte_flow_item_type)
4039 MLX5_RTE_FLOW_ITEM_TYPE_TAG,
4042 items[1] = (struct rte_flow_item){
4043 .type = RTE_FLOW_ITEM_TYPE_END,
4045 actions[0] = (struct rte_flow_action){
4046 .type = (enum rte_flow_action_type)
4047 MLX5_RTE_FLOW_ACTION_TYPE_MARK,
4050 actions[1] = (struct rte_flow_action){
4051 .type = (enum rte_flow_action_type)
4052 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
4055 actions[2] = (struct rte_flow_action){
4056 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4059 actions[3] = (struct rte_flow_action){
4060 .type = RTE_FLOW_ACTION_TYPE_END,
4063 /* Default rule, wildcard match. */
4064 attr.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR;
4065 items[0] = (struct rte_flow_item){
4066 .type = RTE_FLOW_ITEM_TYPE_END,
4068 actions[0] = (struct rte_flow_action){
4069 .type = (enum rte_flow_action_type)
4070 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
4073 actions[1] = (struct rte_flow_action){
4074 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4077 actions[2] = (struct rte_flow_action){
4078 .type = RTE_FLOW_ACTION_TYPE_END,
4081 /* Build a new entry. */
4082 mcp_res = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx);
4088 mcp_res->mark_id = mark_id;
4090 * The copy Flows are not included in any list. There
4091 * ones are referenced from other Flows and can not
4092 * be applied, removed, deleted in ardbitrary order
4093 * by list traversing.
4095 mcp_res->rix_flow = flow_list_create(dev, NULL, &attr, items,
4096 actions, false, error);
4097 if (!mcp_res->rix_flow) {
4098 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], idx);
4101 return &mcp_res->hlist_ent;
4105 * Add a flow of copying flow metadata registers in RX_CP_TBL.
4107 * As mark_id is unique, if there's already a registered flow for the mark_id,
4108 * return by increasing the reference counter of the resource. Otherwise, create
4109 * the resource (mcp_res) and flow.
4112 * - If ingress port is ANY and reg_c[1] is mark_id,
4113 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4115 * For default flow (zero mark_id), flow is like,
4116 * - If ingress port is ANY,
4117 * reg_b := reg_c[0] and jump to RX_ACT_TBL.
4120 * Pointer to Ethernet device.
4122 * ID of MARK action, zero means default flow for META.
4124 * Perform verbose error reporting if not NULL.
4127 * Associated resource on success, NULL otherwise and rte_errno is set.
4129 static struct mlx5_flow_mreg_copy_resource *
4130 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
4131 struct rte_flow_error *error)
4133 struct mlx5_priv *priv = dev->data->dev_private;
4134 struct mlx5_hlist_entry *entry;
4135 struct mlx5_flow_cb_ctx ctx = {
4140 /* Check if already registered. */
4141 MLX5_ASSERT(priv->mreg_cp_tbl);
4142 entry = mlx5_hlist_register(priv->mreg_cp_tbl, mark_id, &ctx);
4145 return container_of(entry, struct mlx5_flow_mreg_copy_resource,
4150 flow_dv_mreg_remove_cb(struct mlx5_hlist *list, struct mlx5_hlist_entry *entry)
4152 struct mlx5_flow_mreg_copy_resource *mcp_res =
4153 container_of(entry, typeof(*mcp_res), hlist_ent);
4154 struct rte_eth_dev *dev = list->ctx;
4155 struct mlx5_priv *priv = dev->data->dev_private;
4157 MLX5_ASSERT(mcp_res->rix_flow);
4158 flow_list_destroy(dev, NULL, mcp_res->rix_flow);
4159 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx);
4163 * Release flow in RX_CP_TBL.
4166 * Pointer to Ethernet device.
4168 * Parent flow for wich copying is provided.
4171 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
4172 struct rte_flow *flow)
4174 struct mlx5_flow_mreg_copy_resource *mcp_res;
4175 struct mlx5_priv *priv = dev->data->dev_private;
4177 if (!flow->rix_mreg_copy)
4179 mcp_res = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MCP],
4180 flow->rix_mreg_copy);
4181 if (!mcp_res || !priv->mreg_cp_tbl)
4183 MLX5_ASSERT(mcp_res->rix_flow);
4184 mlx5_hlist_unregister(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
4185 flow->rix_mreg_copy = 0;
4189 * Remove the default copy action from RX_CP_TBL.
4191 * This functions is called in the mlx5_dev_start(). No thread safe
4195 * Pointer to Ethernet device.
4198 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
4200 struct mlx5_hlist_entry *entry;
4201 struct mlx5_priv *priv = dev->data->dev_private;
4203 /* Check if default flow is registered. */
4204 if (!priv->mreg_cp_tbl)
4206 entry = mlx5_hlist_lookup(priv->mreg_cp_tbl,
4207 MLX5_DEFAULT_COPY_ID, NULL);
4210 mlx5_hlist_unregister(priv->mreg_cp_tbl, entry);
4214 * Add the default copy action in in RX_CP_TBL.
4216 * This functions is called in the mlx5_dev_start(). No thread safe
4220 * Pointer to Ethernet device.
4222 * Perform verbose error reporting if not NULL.
4225 * 0 for success, negative value otherwise and rte_errno is set.
4228 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
4229 struct rte_flow_error *error)
4231 struct mlx5_priv *priv = dev->data->dev_private;
4232 struct mlx5_flow_mreg_copy_resource *mcp_res;
4234 /* Check whether extensive metadata feature is engaged. */
4235 if (!priv->config.dv_flow_en ||
4236 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
4237 !mlx5_flow_ext_mreg_supported(dev) ||
4238 !priv->sh->dv_regc0_mask)
4241 * Add default mreg copy flow may be called multiple time, but
4242 * only be called once in stop. Avoid register it twice.
4244 if (mlx5_hlist_lookup(priv->mreg_cp_tbl, MLX5_DEFAULT_COPY_ID, NULL))
4246 mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error);
4253 * Add a flow of copying flow metadata registers in RX_CP_TBL.
4255 * All the flow having Q/RSS action should be split by
4256 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
4257 * performs the following,
4258 * - CQE->flow_tag := reg_c[1] (MARK)
4259 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
4260 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
4261 * but there should be a flow per each MARK ID set by MARK action.
4263 * For the aforementioned reason, if there's a MARK action in flow's action
4264 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
4265 * the MARK ID to CQE's flow_tag like,
4266 * - If reg_c[1] is mark_id,
4267 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4269 * For SET_META action which stores value in reg_c[0], as the destination is
4270 * also a flow metadata register (reg_b), adding a default flow is enough. Zero
4271 * MARK ID means the default flow. The default flow looks like,
4272 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
4275 * Pointer to Ethernet device.
4277 * Pointer to flow structure.
4278 * @param[in] actions
4279 * Pointer to the list of actions.
4281 * Perform verbose error reporting if not NULL.
4284 * 0 on success, negative value otherwise and rte_errno is set.
4287 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
4288 struct rte_flow *flow,
4289 const struct rte_flow_action *actions,
4290 struct rte_flow_error *error)
4292 struct mlx5_priv *priv = dev->data->dev_private;
4293 struct mlx5_dev_config *config = &priv->config;
4294 struct mlx5_flow_mreg_copy_resource *mcp_res;
4295 const struct rte_flow_action_mark *mark;
4297 /* Check whether extensive metadata feature is engaged. */
4298 if (!config->dv_flow_en ||
4299 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
4300 !mlx5_flow_ext_mreg_supported(dev) ||
4301 !priv->sh->dv_regc0_mask)
4303 /* Find MARK action. */
4304 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4305 switch (actions->type) {
4306 case RTE_FLOW_ACTION_TYPE_FLAG:
4307 mcp_res = flow_mreg_add_copy_action
4308 (dev, MLX5_FLOW_MARK_DEFAULT, error);
4311 flow->rix_mreg_copy = mcp_res->idx;
4313 case RTE_FLOW_ACTION_TYPE_MARK:
4314 mark = (const struct rte_flow_action_mark *)
4317 flow_mreg_add_copy_action(dev, mark->id, error);
4320 flow->rix_mreg_copy = mcp_res->idx;
4329 #define MLX5_MAX_SPLIT_ACTIONS 24
4330 #define MLX5_MAX_SPLIT_ITEMS 24
4333 * Split the hairpin flow.
4334 * Since HW can't support encap and push-vlan on Rx, we move these
4336 * If the count action is after the encap then we also
4337 * move the count action. in this case the count will also measure
4341 * Pointer to Ethernet device.
4342 * @param[in] actions
4343 * Associated actions (list terminated by the END action).
4344 * @param[out] actions_rx
4346 * @param[out] actions_tx
4348 * @param[out] pattern_tx
4349 * The pattern items for the Tx flow.
4350 * @param[out] flow_id
4351 * The flow ID connected to this flow.
4357 flow_hairpin_split(struct rte_eth_dev *dev,
4358 const struct rte_flow_action actions[],
4359 struct rte_flow_action actions_rx[],
4360 struct rte_flow_action actions_tx[],
4361 struct rte_flow_item pattern_tx[],
4364 const struct rte_flow_action_raw_encap *raw_encap;
4365 const struct rte_flow_action_raw_decap *raw_decap;
4366 struct mlx5_rte_flow_action_set_tag *set_tag;
4367 struct rte_flow_action *tag_action;
4368 struct mlx5_rte_flow_item_tag *tag_item;
4369 struct rte_flow_item *item;
4373 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4374 switch (actions->type) {
4375 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
4376 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
4377 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
4378 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
4379 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
4380 rte_memcpy(actions_tx, actions,
4381 sizeof(struct rte_flow_action));
4384 case RTE_FLOW_ACTION_TYPE_COUNT:
4386 rte_memcpy(actions_tx, actions,
4387 sizeof(struct rte_flow_action));
4390 rte_memcpy(actions_rx, actions,
4391 sizeof(struct rte_flow_action));
4395 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4396 raw_encap = actions->conf;
4397 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) {
4398 memcpy(actions_tx, actions,
4399 sizeof(struct rte_flow_action));
4403 rte_memcpy(actions_rx, actions,
4404 sizeof(struct rte_flow_action));
4408 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
4409 raw_decap = actions->conf;
4410 if (raw_decap->size < MLX5_ENCAPSULATION_DECISION_SIZE) {
4411 memcpy(actions_tx, actions,
4412 sizeof(struct rte_flow_action));
4415 rte_memcpy(actions_rx, actions,
4416 sizeof(struct rte_flow_action));
4421 rte_memcpy(actions_rx, actions,
4422 sizeof(struct rte_flow_action));
4427 /* Add set meta action and end action for the Rx flow. */
4428 tag_action = actions_rx;
4429 tag_action->type = (enum rte_flow_action_type)
4430 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
4432 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
4434 set_tag = (void *)actions_rx;
4435 *set_tag = (struct mlx5_rte_flow_action_set_tag) {
4436 .id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL),
4439 MLX5_ASSERT(set_tag->id > REG_NON);
4440 tag_action->conf = set_tag;
4441 /* Create Tx item list. */
4442 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
4443 addr = (void *)&pattern_tx[2];
4445 item->type = (enum rte_flow_item_type)
4446 MLX5_RTE_FLOW_ITEM_TYPE_TAG;
4447 tag_item = (void *)addr;
4448 tag_item->data = flow_id;
4449 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
4450 MLX5_ASSERT(set_tag->id > REG_NON);
4451 item->spec = tag_item;
4452 addr += sizeof(struct mlx5_rte_flow_item_tag);
4453 tag_item = (void *)addr;
4454 tag_item->data = UINT32_MAX;
4455 tag_item->id = UINT16_MAX;
4456 item->mask = tag_item;
4459 item->type = RTE_FLOW_ITEM_TYPE_END;
4464 * The last stage of splitting chain, just creates the subflow
4465 * without any modification.
4468 * Pointer to Ethernet device.
4470 * Parent flow structure pointer.
4471 * @param[in, out] sub_flow
4472 * Pointer to return the created subflow, may be NULL.
4474 * Flow rule attributes.
4476 * Pattern specification (list terminated by the END pattern item).
4477 * @param[in] actions
4478 * Associated actions (list terminated by the END action).
4479 * @param[in] flow_split_info
4480 * Pointer to flow split info structure.
4482 * Perform verbose error reporting if not NULL.
4484 * 0 on success, negative value otherwise
4487 flow_create_split_inner(struct rte_eth_dev *dev,
4488 struct rte_flow *flow,
4489 struct mlx5_flow **sub_flow,
4490 const struct rte_flow_attr *attr,
4491 const struct rte_flow_item items[],
4492 const struct rte_flow_action actions[],
4493 struct mlx5_flow_split_info *flow_split_info,
4494 struct rte_flow_error *error)
4496 struct mlx5_flow *dev_flow;
4498 dev_flow = flow_drv_prepare(dev, flow, attr, items, actions,
4499 flow_split_info->flow_idx, error);
4502 dev_flow->flow = flow;
4503 dev_flow->external = flow_split_info->external;
4504 dev_flow->skip_scale = flow_split_info->skip_scale;
4505 /* Subflow object was created, we must include one in the list. */
4506 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
4507 dev_flow->handle, next);
4509 * If dev_flow is as one of the suffix flow, some actions in suffix
4510 * flow may need some user defined item layer flags, and pass the
4511 * Metadate rxq mark flag to suffix flow as well.
4513 if (flow_split_info->prefix_layers)
4514 dev_flow->handle->layers = flow_split_info->prefix_layers;
4515 if (flow_split_info->prefix_mark)
4516 dev_flow->handle->mark = 1;
4518 *sub_flow = dev_flow;
4519 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
4520 dev_flow->dv.table_id = flow_split_info->table_id;
4522 return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
4526 * Get the sub policy of a meter.
4529 * Pointer to Ethernet device.
4531 * Parent flow structure pointer.
4532 * @param[in] policy_id;
4535 * Flow rule attributes.
4537 * Pattern specification (list terminated by the END pattern item).
4539 * Perform verbose error reporting if not NULL.
4542 * Pointer to the meter sub policy, NULL otherwise and rte_errno is set.
4544 static struct mlx5_flow_meter_sub_policy *
4545 get_meter_sub_policy(struct rte_eth_dev *dev,
4546 struct rte_flow *flow,
4548 const struct rte_flow_attr *attr,
4549 const struct rte_flow_item items[],
4550 struct rte_flow_error *error)
4552 struct mlx5_flow_meter_policy *policy;
4553 struct mlx5_flow_meter_sub_policy *sub_policy = NULL;
4555 policy = mlx5_flow_meter_policy_find(dev, policy_id, NULL);
4557 rte_flow_error_set(error, EINVAL,
4558 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4559 "Failed to find Meter Policy.");
4562 if (policy->is_rss) {
4563 struct mlx5_flow_workspace *wks =
4564 mlx5_flow_get_thread_workspace();
4565 struct mlx5_flow_rss_desc rss_desc_v[MLX5_MTR_RTE_COLORS];
4566 struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS] = {0};
4571 * This is a tmp dev_flow,
4572 * no need to register any matcher for it in translate.
4574 wks->skip_matcher_reg = 1;
4575 for (i = 0; i < MLX5_MTR_RTE_COLORS; i++) {
4576 struct mlx5_flow dev_flow = {0};
4577 struct mlx5_flow_handle dev_handle = { {0} };
4578 const void *rss_act = policy->act_cnt[i].rss->conf;
4579 struct rte_flow_action rss_actions[2] = {
4581 .type = RTE_FLOW_ACTION_TYPE_RSS,
4585 .type = RTE_FLOW_ACTION_TYPE_END,
4590 dev_flow.handle = &dev_handle;
4591 dev_flow.ingress = attr->ingress;
4592 dev_flow.flow = flow;
4593 dev_flow.external = 0;
4594 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
4595 dev_flow.dv.transfer = attr->transfer;
4597 /* Translate RSS action to get rss hash fields. */
4598 if (flow_drv_translate(dev, &dev_flow, attr,
4599 items, rss_actions, error))
4601 rss_desc_v[i] = wks->rss_desc;
4602 rss_desc_v[i].key_len = MLX5_RSS_HASH_KEY_LEN;
4603 rss_desc_v[i].hash_fields = dev_flow.hash_fields;
4604 rss_desc_v[i].queue_num = rss_desc_v[i].hash_fields ?
4605 rss_desc_v[i].queue_num : 1;
4606 rss_desc[i] = &rss_desc_v[i];
4608 sub_policy = flow_drv_meter_sub_policy_rss_prepare(dev,
4609 flow, policy, rss_desc);
4611 enum mlx5_meter_domain mtr_domain =
4612 attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
4613 attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
4614 MLX5_MTR_DOMAIN_INGRESS;
4615 sub_policy = policy->sub_policys[mtr_domain][0];
4618 rte_flow_error_set(error, EINVAL,
4619 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4620 "Failed to get meter sub-policy.");
4628 * Split the meter flow.
4630 * As meter flow will split to three sub flow, other than meter
4631 * action, the other actions make sense to only meter accepts
4632 * the packet. If it need to be dropped, no other additional
4633 * actions should be take.
4635 * One kind of special action which decapsulates the L3 tunnel
4636 * header will be in the prefix sub flow, as not to take the
4637 * L3 tunnel header into account.
4640 * Pointer to Ethernet device.
4642 * Parent flow structure pointer.
4644 * Pointer to flow meter structure.
4646 * Flow rule attributes.
4648 * Pattern specification (list terminated by the END pattern item).
4649 * @param[out] sfx_items
4650 * Suffix flow match items (list terminated by the END pattern item).
4651 * @param[in] actions
4652 * Associated actions (list terminated by the END action).
4653 * @param[out] actions_sfx
4654 * Suffix flow actions.
4655 * @param[out] actions_pre
4656 * Prefix flow actions.
4657 * @param[out] mtr_flow_id
4658 * Pointer to meter flow id.
4660 * Perform verbose error reporting if not NULL.
4663 * 0 on success, a negative errno value otherwise and rte_errno is set.
4666 flow_meter_split_prep(struct rte_eth_dev *dev,
4667 struct rte_flow *flow,
4668 struct mlx5_flow_meter_info *fm,
4669 const struct rte_flow_attr *attr,
4670 const struct rte_flow_item items[],
4671 struct rte_flow_item sfx_items[],
4672 const struct rte_flow_action actions[],
4673 struct rte_flow_action actions_sfx[],
4674 struct rte_flow_action actions_pre[],
4675 uint32_t *mtr_flow_id,
4676 struct rte_flow_error *error)
4678 struct mlx5_priv *priv = dev->data->dev_private;
4679 struct rte_flow_action *tag_action = NULL;
4680 struct rte_flow_item *tag_item;
4681 struct mlx5_rte_flow_action_set_tag *set_tag;
4682 const struct rte_flow_action_raw_encap *raw_encap;
4683 const struct rte_flow_action_raw_decap *raw_decap;
4684 struct mlx5_rte_flow_item_tag *tag_item_spec;
4685 struct mlx5_rte_flow_item_tag *tag_item_mask;
4686 uint32_t tag_id = 0;
4687 bool copy_vlan = false;
4688 struct rte_flow_action *hw_mtr_action;
4689 struct rte_flow_action *action_pre_head = NULL;
4690 bool mtr_first = priv->sh->meter_aso_en &&
4692 (attr->transfer && priv->representor_id != UINT16_MAX));
4693 uint8_t mtr_id_offset = priv->mtr_reg_share ? MLX5_MTR_COLOR_BITS : 0;
4694 uint8_t mtr_reg_bits = priv->mtr_reg_share ?
4695 MLX5_MTR_IDLE_BITS_IN_COLOR_REG : MLX5_REG_BITS;
4696 uint32_t flow_id = 0;
4697 uint32_t flow_id_reversed = 0;
4698 uint8_t flow_id_bits = 0;
4701 /* For ASO meter, meter must be before tag in TX direction. */
4703 action_pre_head = actions_pre++;
4704 /* Leave space for tag action. */
4705 tag_action = actions_pre++;
4707 /* Prepare the actions for prefix and suffix flow. */
4708 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
4709 struct rte_flow_action *action_cur = NULL;
4711 switch (actions->type) {
4712 case RTE_FLOW_ACTION_TYPE_METER:
4714 action_cur = action_pre_head;
4716 /* Leave space for tag action. */
4717 tag_action = actions_pre++;
4718 action_cur = actions_pre++;
4721 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
4722 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
4723 action_cur = actions_pre++;
4725 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
4726 raw_encap = actions->conf;
4727 if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE)
4728 action_cur = actions_pre++;
4730 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
4731 raw_decap = actions->conf;
4732 if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
4733 action_cur = actions_pre++;
4735 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
4736 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
4743 action_cur = (fm->def_policy) ?
4744 actions_sfx++ : actions_pre++;
4745 memcpy(action_cur, actions, sizeof(struct rte_flow_action));
4747 /* Add end action to the actions. */
4748 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
4749 if (priv->sh->meter_aso_en) {
4751 * For ASO meter, need to add an extra jump action explicitly,
4752 * to jump from meter to policer table.
4754 struct mlx5_flow_meter_sub_policy *sub_policy;
4755 struct mlx5_flow_tbl_data_entry *tbl_data;
4757 if (!fm->def_policy) {
4758 sub_policy = get_meter_sub_policy(dev, flow,
4759 fm->policy_id, attr,
4764 enum mlx5_meter_domain mtr_domain =
4765 attr->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
4766 attr->egress ? MLX5_MTR_DOMAIN_EGRESS :
4767 MLX5_MTR_DOMAIN_INGRESS;
4770 &priv->sh->mtrmng->def_policy[mtr_domain]->sub_policy;
4772 tbl_data = container_of(sub_policy->tbl_rsc,
4773 struct mlx5_flow_tbl_data_entry, tbl);
4774 hw_mtr_action = actions_pre++;
4775 hw_mtr_action->type = (enum rte_flow_action_type)
4776 MLX5_RTE_FLOW_ACTION_TYPE_JUMP;
4777 hw_mtr_action->conf = tbl_data->jump.action;
4779 actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
4782 return rte_flow_error_set(error, ENOMEM,
4783 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4784 "No tag action space.");
4786 tag_action->type = RTE_FLOW_ACTION_TYPE_VOID;
4789 /* Only default-policy Meter creates mtr flow id. */
4790 if (fm->def_policy) {
4791 mlx5_ipool_malloc(fm->flow_ipool, &tag_id);
4793 return rte_flow_error_set(error, ENOMEM,
4794 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4795 "Failed to allocate meter flow id.");
4796 flow_id = tag_id - 1;
4797 flow_id_bits = MLX5_REG_BITS - __builtin_clz(flow_id);
4798 flow_id_bits = flow_id_bits ? flow_id_bits : 1;
4799 if ((flow_id_bits + priv->sh->mtrmng->max_mtr_bits) >
4801 mlx5_ipool_free(fm->flow_ipool, tag_id);
4802 return rte_flow_error_set(error, EINVAL,
4803 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
4804 "Meter flow id exceeds max limit.");
4806 if (flow_id_bits > priv->sh->mtrmng->max_mtr_flow_bits)
4807 priv->sh->mtrmng->max_mtr_flow_bits = flow_id_bits;
4809 /* Prepare the suffix subflow items. */
4810 tag_item = sfx_items++;
4811 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
4812 int item_type = items->type;
4814 switch (item_type) {
4815 case RTE_FLOW_ITEM_TYPE_PORT_ID:
4816 memcpy(sfx_items, items, sizeof(*sfx_items));
4819 case RTE_FLOW_ITEM_TYPE_VLAN:
4821 memcpy(sfx_items, items, sizeof(*sfx_items));
4823 * Convert to internal match item, it is used
4824 * for vlan push and set vid.
4826 sfx_items->type = (enum rte_flow_item_type)
4827 MLX5_RTE_FLOW_ITEM_TYPE_VLAN;
4835 sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
4837 /* Build tag actions and items for meter_id/meter flow_id. */
4838 set_tag = (struct mlx5_rte_flow_action_set_tag *)actions_pre;
4839 tag_item_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
4840 tag_item_mask = tag_item_spec + 1;
4841 /* Both flow_id and meter_id share the same register. */
4842 *set_tag = (struct mlx5_rte_flow_action_set_tag) {
4843 .id = (enum modify_reg)mlx5_flow_get_reg_id(dev, MLX5_MTR_ID,
4845 .offset = mtr_id_offset,
4846 .length = mtr_reg_bits,
4847 .data = flow->meter,
4850 * The color Reg bits used by flow_id are growing from
4851 * msb to lsb, so must do bit reverse for flow_id val in RegC.
4853 for (shift = 0; shift < flow_id_bits; shift++)
4854 flow_id_reversed = (flow_id_reversed << 1) |
4855 ((flow_id >> shift) & 0x1);
4857 flow_id_reversed << (mtr_reg_bits - flow_id_bits);
4858 tag_item_spec->id = set_tag->id;
4859 tag_item_spec->data = set_tag->data << mtr_id_offset;
4860 tag_item_mask->data = UINT32_MAX << mtr_id_offset;
4861 tag_action->type = (enum rte_flow_action_type)
4862 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
4863 tag_action->conf = set_tag;
4864 tag_item->type = (enum rte_flow_item_type)
4865 MLX5_RTE_FLOW_ITEM_TYPE_TAG;
4866 tag_item->spec = tag_item_spec;
4867 tag_item->last = NULL;
4868 tag_item->mask = tag_item_mask;
4871 *mtr_flow_id = tag_id;
4876 * Split action list having QUEUE/RSS for metadata register copy.
4878 * Once Q/RSS action is detected in user's action list, the flow action
4879 * should be split in order to copy metadata registers, which will happen in
4881 * - CQE->flow_tag := reg_c[1] (MARK)
4882 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
4883 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
4884 * This is because the last action of each flow must be a terminal action
4885 * (QUEUE, RSS or DROP).
4887 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
4888 * stored and kept in the mlx5_flow structure per each sub_flow.
4890 * The Q/RSS action is replaced with,
4891 * - SET_TAG, setting the allocated flow ID to reg_c[2].
4892 * And the following JUMP action is added at the end,
4893 * - JUMP, to RX_CP_TBL.
4895 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
4896 * flow_create_split_metadata() routine. The flow will look like,
4897 * - If flow ID matches (reg_c[2]), perform Q/RSS.
4900 * Pointer to Ethernet device.
4901 * @param[out] split_actions
4902 * Pointer to store split actions to jump to CP_TBL.
4903 * @param[in] actions
4904 * Pointer to the list of original flow actions.
4906 * Pointer to the Q/RSS action.
4907 * @param[in] actions_n
4908 * Number of original actions.
4910 * Perform verbose error reporting if not NULL.
4913 * non-zero unique flow_id on success, otherwise 0 and
4914 * error/rte_error are set.
4917 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
4918 struct rte_flow_action *split_actions,
4919 const struct rte_flow_action *actions,
4920 const struct rte_flow_action *qrss,
4921 int actions_n, struct rte_flow_error *error)
4923 struct mlx5_priv *priv = dev->data->dev_private;
4924 struct mlx5_rte_flow_action_set_tag *set_tag;
4925 struct rte_flow_action_jump *jump;
4926 const int qrss_idx = qrss - actions;
4927 uint32_t flow_id = 0;
4931 * Given actions will be split
4932 * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
4933 * - Add jump to mreg CP_TBL.
4934 * As a result, there will be one more action.
4937 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
4938 set_tag = (void *)(split_actions + actions_n);
4940 * If tag action is not set to void(it means we are not the meter
4941 * suffix flow), add the tag action. Since meter suffix flow already
4942 * has the tag added.
4944 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
4946 * Allocate the new subflow ID. This one is unique within
4947 * device and not shared with representors. Otherwise,
4948 * we would have to resolve multi-thread access synch
4949 * issue. Each flow on the shared device is appended
4950 * with source vport identifier, so the resulting
4951 * flows will be unique in the shared (by master and
4952 * representors) domain even if they have coinciding
4955 mlx5_ipool_malloc(priv->sh->ipool
4956 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &flow_id);
4958 return rte_flow_error_set(error, ENOMEM,
4959 RTE_FLOW_ERROR_TYPE_ACTION,
4960 NULL, "can't allocate id "
4961 "for split Q/RSS subflow");
4962 /* Internal SET_TAG action to set flow ID. */
4963 *set_tag = (struct mlx5_rte_flow_action_set_tag){
4966 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
4970 /* Construct new actions array. */
4971 /* Replace QUEUE/RSS action. */
4972 split_actions[qrss_idx] = (struct rte_flow_action){
4973 .type = (enum rte_flow_action_type)
4974 MLX5_RTE_FLOW_ACTION_TYPE_TAG,
4978 /* JUMP action to jump to mreg copy table (CP_TBL). */
4979 jump = (void *)(set_tag + 1);
4980 *jump = (struct rte_flow_action_jump){
4981 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
4983 split_actions[actions_n - 2] = (struct rte_flow_action){
4984 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4987 split_actions[actions_n - 1] = (struct rte_flow_action){
4988 .type = RTE_FLOW_ACTION_TYPE_END,
4994 * Extend the given action list for Tx metadata copy.
4996 * Copy the given action list to the ext_actions and add flow metadata register
4997 * copy action in order to copy reg_a set by WQE to reg_c[0].
4999 * @param[out] ext_actions
5000 * Pointer to the extended action list.
5001 * @param[in] actions
5002 * Pointer to the list of actions.
5003 * @param[in] actions_n
5004 * Number of actions in the list.
5006 * Perform verbose error reporting if not NULL.
5007 * @param[in] encap_idx
5008 * The encap action inndex.
5011 * 0 on success, negative value otherwise
5014 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
5015 struct rte_flow_action *ext_actions,
5016 const struct rte_flow_action *actions,
5017 int actions_n, struct rte_flow_error *error,
5020 struct mlx5_flow_action_copy_mreg *cp_mreg =
5021 (struct mlx5_flow_action_copy_mreg *)
5022 (ext_actions + actions_n + 1);
5025 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
5029 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
5034 memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx);
5035 if (encap_idx == actions_n - 1) {
5036 ext_actions[actions_n - 1] = (struct rte_flow_action){
5037 .type = (enum rte_flow_action_type)
5038 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5041 ext_actions[actions_n] = (struct rte_flow_action){
5042 .type = RTE_FLOW_ACTION_TYPE_END,
5045 ext_actions[encap_idx] = (struct rte_flow_action){
5046 .type = (enum rte_flow_action_type)
5047 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5050 memcpy(ext_actions + encap_idx + 1, actions + encap_idx,
5051 sizeof(*ext_actions) * (actions_n - encap_idx));
5057 * Check the match action from the action list.
5059 * @param[in] actions
5060 * Pointer to the list of actions.
5062 * Flow rule attributes.
5064 * The action to be check if exist.
5065 * @param[out] match_action_pos
5066 * Pointer to the position of the matched action if exists, otherwise is -1.
5067 * @param[out] qrss_action_pos
5068 * Pointer to the position of the Queue/RSS action if exists, otherwise is -1.
5069 * @param[out] modify_after_mirror
5070 * Pointer to the flag of modify action after FDB mirroring.
5073 * > 0 the total number of actions.
5074 * 0 if not found match action in action list.
5077 flow_check_match_action(const struct rte_flow_action actions[],
5078 const struct rte_flow_attr *attr,
5079 enum rte_flow_action_type action,
5080 int *match_action_pos, int *qrss_action_pos,
5081 int *modify_after_mirror)
5083 const struct rte_flow_action_sample *sample;
5090 *match_action_pos = -1;
5091 *qrss_action_pos = -1;
5092 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
5093 if (actions->type == action) {
5095 *match_action_pos = actions_n;
5097 switch (actions->type) {
5098 case RTE_FLOW_ACTION_TYPE_QUEUE:
5099 case RTE_FLOW_ACTION_TYPE_RSS:
5100 *qrss_action_pos = actions_n;
5102 case RTE_FLOW_ACTION_TYPE_SAMPLE:
5103 sample = actions->conf;
5104 ratio = sample->ratio;
5105 sub_type = ((const struct rte_flow_action *)
5106 (sample->actions))->type;
5107 if (ratio == 1 && attr->transfer)
5110 case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
5111 case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
5112 case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
5113 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
5114 case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
5115 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
5116 case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
5117 case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
5118 case RTE_FLOW_ACTION_TYPE_DEC_TTL:
5119 case RTE_FLOW_ACTION_TYPE_SET_TTL:
5120 case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
5121 case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
5122 case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
5123 case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
5124 case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
5125 case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
5126 case RTE_FLOW_ACTION_TYPE_FLAG:
5127 case RTE_FLOW_ACTION_TYPE_MARK:
5128 case RTE_FLOW_ACTION_TYPE_SET_META:
5129 case RTE_FLOW_ACTION_TYPE_SET_TAG:
5130 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
5131 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
5132 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
5133 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
5134 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
5135 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
5136 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
5137 case RTE_FLOW_ACTION_TYPE_MODIFY_FIELD:
5139 *modify_after_mirror = 1;
5146 if (flag && fdb_mirror && !*modify_after_mirror) {
5147 /* FDB mirroring uses the destination array to implement
5148 * instead of FLOW_SAMPLER object.
5150 if (sub_type != RTE_FLOW_ACTION_TYPE_END)
5153 /* Count RTE_FLOW_ACTION_TYPE_END. */
5154 return flag ? actions_n + 1 : 0;
5157 #define SAMPLE_SUFFIX_ITEM 2
5160 * Split the sample flow.
5162 * As sample flow will split to two sub flow, sample flow with
5163 * sample action, the other actions will move to new suffix flow.
5165 * Also add unique tag id with tag action in the sample flow,
5166 * the same tag id will be as match in the suffix flow.
5169 * Pointer to Ethernet device.
5170 * @param[in] add_tag
5171 * Add extra tag action flag.
5172 * @param[out] sfx_items
5173 * Suffix flow match items (list terminated by the END pattern item).
5174 * @param[in] actions
5175 * Associated actions (list terminated by the END action).
5176 * @param[out] actions_sfx
5177 * Suffix flow actions.
5178 * @param[out] actions_pre
5179 * Prefix flow actions.
5180 * @param[in] actions_n
5181 * The total number of actions.
5182 * @param[in] sample_action_pos
5183 * The sample action position.
5184 * @param[in] qrss_action_pos
5185 * The Queue/RSS action position.
5186 * @param[in] jump_table
5187 * Add extra jump action flag.
5189 * Perform verbose error reporting if not NULL.
5192 * 0 on success, or unique flow_id, a negative errno value
5193 * otherwise and rte_errno is set.
5196 flow_sample_split_prep(struct rte_eth_dev *dev,
5198 struct rte_flow_item sfx_items[],
5199 const struct rte_flow_action actions[],
5200 struct rte_flow_action actions_sfx[],
5201 struct rte_flow_action actions_pre[],
5203 int sample_action_pos,
5204 int qrss_action_pos,
5206 struct rte_flow_error *error)
5208 struct mlx5_priv *priv = dev->data->dev_private;
5209 struct mlx5_rte_flow_action_set_tag *set_tag;
5210 struct mlx5_rte_flow_item_tag *tag_spec;
5211 struct mlx5_rte_flow_item_tag *tag_mask;
5212 struct rte_flow_action_jump *jump_action;
5213 uint32_t tag_id = 0;
5215 int append_index = 0;
5218 if (sample_action_pos < 0)
5219 return rte_flow_error_set(error, EINVAL,
5220 RTE_FLOW_ERROR_TYPE_ACTION,
5221 NULL, "invalid position of sample "
5223 /* Prepare the actions for prefix and suffix flow. */
5224 if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) {
5225 index = qrss_action_pos;
5226 /* Put the preceding the Queue/RSS action into prefix flow. */
5228 memcpy(actions_pre, actions,
5229 sizeof(struct rte_flow_action) * index);
5230 /* Put others preceding the sample action into prefix flow. */
5231 if (sample_action_pos > index + 1)
5232 memcpy(actions_pre + index, actions + index + 1,
5233 sizeof(struct rte_flow_action) *
5234 (sample_action_pos - index - 1));
5235 index = sample_action_pos - 1;
5236 /* Put Queue/RSS action into Suffix flow. */
5237 memcpy(actions_sfx, actions + qrss_action_pos,
5238 sizeof(struct rte_flow_action));
5241 index = sample_action_pos;
5243 memcpy(actions_pre, actions,
5244 sizeof(struct rte_flow_action) * index);
5246 /* For CX5, add an extra tag action for NIC-RX and E-Switch ingress.
5247 * For CX6DX and above, metadata registers Cx preserve their value,
5248 * add an extra tag action for NIC-RX and E-Switch Domain.
5251 /* Prepare the prefix tag action. */
5253 set_tag = (void *)(actions_pre + actions_n + append_index);
5254 ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, 0, error);
5257 mlx5_ipool_malloc(priv->sh->ipool
5258 [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id);
5259 *set_tag = (struct mlx5_rte_flow_action_set_tag) {
5263 /* Prepare the suffix subflow items. */
5264 tag_spec = (void *)(sfx_items + SAMPLE_SUFFIX_ITEM);
5265 tag_spec->data = tag_id;
5266 tag_spec->id = set_tag->id;
5267 tag_mask = tag_spec + 1;
5268 tag_mask->data = UINT32_MAX;
5269 sfx_items[0] = (struct rte_flow_item){
5270 .type = (enum rte_flow_item_type)
5271 MLX5_RTE_FLOW_ITEM_TYPE_TAG,
5276 sfx_items[1] = (struct rte_flow_item){
5277 .type = (enum rte_flow_item_type)
5278 RTE_FLOW_ITEM_TYPE_END,
5280 /* Prepare the tag action in prefix subflow. */
5281 actions_pre[index++] =
5282 (struct rte_flow_action){
5283 .type = (enum rte_flow_action_type)
5284 MLX5_RTE_FLOW_ACTION_TYPE_TAG,
5288 memcpy(actions_pre + index, actions + sample_action_pos,
5289 sizeof(struct rte_flow_action));
5291 /* For the modify action after the sample action in E-Switch mirroring,
5292 * Add the extra jump action in prefix subflow and jump into the next
5293 * table, then do the modify action in the new table.
5296 /* Prepare the prefix jump action. */
5298 jump_action = (void *)(actions_pre + actions_n + append_index);
5299 jump_action->group = jump_table;
5300 actions_pre[index++] =
5301 (struct rte_flow_action){
5302 .type = (enum rte_flow_action_type)
5303 RTE_FLOW_ACTION_TYPE_JUMP,
5304 .conf = jump_action,
5307 actions_pre[index] = (struct rte_flow_action){
5308 .type = (enum rte_flow_action_type)
5309 RTE_FLOW_ACTION_TYPE_END,
5311 /* Put the actions after sample into Suffix flow. */
5312 memcpy(actions_sfx, actions + sample_action_pos + 1,
5313 sizeof(struct rte_flow_action) *
5314 (actions_n - sample_action_pos - 1));
5319 * The splitting for metadata feature.
5321 * - Q/RSS action on NIC Rx should be split in order to pass by
5322 * the mreg copy table (RX_CP_TBL) and then it jumps to the
5323 * action table (RX_ACT_TBL) which has the split Q/RSS action.
5325 * - All the actions on NIC Tx should have a mreg copy action to
5326 * copy reg_a from WQE to reg_c[0].
5329 * Pointer to Ethernet device.
5331 * Parent flow structure pointer.
5333 * Flow rule attributes.
5335 * Pattern specification (list terminated by the END pattern item).
5336 * @param[in] actions
5337 * Associated actions (list terminated by the END action).
5338 * @param[in] flow_split_info
5339 * Pointer to flow split info structure.
5341 * Perform verbose error reporting if not NULL.
5343 * 0 on success, negative value otherwise
5346 flow_create_split_metadata(struct rte_eth_dev *dev,
5347 struct rte_flow *flow,
5348 const struct rte_flow_attr *attr,
5349 const struct rte_flow_item items[],
5350 const struct rte_flow_action actions[],
5351 struct mlx5_flow_split_info *flow_split_info,
5352 struct rte_flow_error *error)
5354 struct mlx5_priv *priv = dev->data->dev_private;
5355 struct mlx5_dev_config *config = &priv->config;
5356 const struct rte_flow_action *qrss = NULL;
5357 struct rte_flow_action *ext_actions = NULL;
5358 struct mlx5_flow *dev_flow = NULL;
5359 uint32_t qrss_id = 0;
5366 /* Check whether extensive metadata feature is engaged. */
5367 if (!config->dv_flow_en ||
5368 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
5369 !mlx5_flow_ext_mreg_supported(dev))
5370 return flow_create_split_inner(dev, flow, NULL, attr, items,
5371 actions, flow_split_info, error);
5372 actions_n = flow_parse_metadata_split_actions_info(actions, &qrss,
5375 /* Exclude hairpin flows from splitting. */
5376 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
5377 const struct rte_flow_action_queue *queue;
5380 if (mlx5_rxq_get_type(dev, queue->index) ==
5381 MLX5_RXQ_TYPE_HAIRPIN)
5383 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
5384 const struct rte_flow_action_rss *rss;
5387 if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
5388 MLX5_RXQ_TYPE_HAIRPIN)
5393 /* Check if it is in meter suffix table. */
5394 mtr_sfx = attr->group == (attr->transfer ?
5395 (MLX5_FLOW_TABLE_LEVEL_METER - 1) :
5396 MLX5_FLOW_TABLE_LEVEL_METER);
5398 * Q/RSS action on NIC Rx should be split in order to pass by
5399 * the mreg copy table (RX_CP_TBL) and then it jumps to the
5400 * action table (RX_ACT_TBL) which has the split Q/RSS action.
5402 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
5403 sizeof(struct rte_flow_action_set_tag) +
5404 sizeof(struct rte_flow_action_jump);
5405 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
5408 return rte_flow_error_set(error, ENOMEM,
5409 RTE_FLOW_ERROR_TYPE_ACTION,
5410 NULL, "no memory to split "
5413 * If we are the suffix flow of meter, tag already exist.
5414 * Set the tag action to void.
5417 ext_actions[qrss - actions].type =
5418 RTE_FLOW_ACTION_TYPE_VOID;
5420 ext_actions[qrss - actions].type =
5421 (enum rte_flow_action_type)
5422 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
5424 * Create the new actions list with removed Q/RSS action
5425 * and appended set tag and jump to register copy table
5426 * (RX_CP_TBL). We should preallocate unique tag ID here
5427 * in advance, because it is needed for set tag action.
5429 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
5430 qrss, actions_n, error);
5431 if (!mtr_sfx && !qrss_id) {
5435 } else if (attr->egress && !attr->transfer) {
5437 * All the actions on NIC Tx should have a metadata register
5438 * copy action to copy reg_a from WQE to reg_c[meta]
5440 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
5441 sizeof(struct mlx5_flow_action_copy_mreg);
5442 ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0,
5445 return rte_flow_error_set(error, ENOMEM,
5446 RTE_FLOW_ERROR_TYPE_ACTION,
5447 NULL, "no memory to split "
5449 /* Create the action list appended with copy register. */
5450 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
5451 actions_n, error, encap_idx);
5455 /* Add the unmodified original or prefix subflow. */
5456 ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
5457 items, ext_actions ? ext_actions :
5458 actions, flow_split_info, error);
5461 MLX5_ASSERT(dev_flow);
5463 const struct rte_flow_attr q_attr = {
5464 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5467 /* Internal PMD action to set register. */
5468 struct mlx5_rte_flow_item_tag q_tag_spec = {
5472 struct rte_flow_item q_items[] = {
5474 .type = (enum rte_flow_item_type)
5475 MLX5_RTE_FLOW_ITEM_TYPE_TAG,
5476 .spec = &q_tag_spec,
5481 .type = RTE_FLOW_ITEM_TYPE_END,
5484 struct rte_flow_action q_actions[] = {
5490 .type = RTE_FLOW_ACTION_TYPE_END,
5493 uint64_t layers = flow_get_prefix_layer_flags(dev_flow);
5496 * Configure the tag item only if there is no meter subflow.
5497 * Since tag is already marked in the meter suffix subflow
5498 * we can just use the meter suffix items as is.
5501 /* Not meter subflow. */
5502 MLX5_ASSERT(!mtr_sfx);
5504 * Put unique id in prefix flow due to it is destroyed
5505 * after suffix flow and id will be freed after there
5506 * is no actual flows with this id and identifier
5507 * reallocation becomes possible (for example, for
5508 * other flows in other threads).
5510 dev_flow->handle->split_flow_id = qrss_id;
5511 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
5515 q_tag_spec.id = ret;
5518 /* Add suffix subflow to execute Q/RSS. */
5519 flow_split_info->prefix_layers = layers;
5520 flow_split_info->prefix_mark = 0;
5521 ret = flow_create_split_inner(dev, flow, &dev_flow,
5522 &q_attr, mtr_sfx ? items :
5524 flow_split_info, error);
5527 /* qrss ID should be freed if failed. */
5529 MLX5_ASSERT(dev_flow);
5534 * We do not destroy the partially created sub_flows in case of error.
5535 * These ones are included into parent flow list and will be destroyed
5536 * by flow_drv_destroy.
5538 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID],
5540 mlx5_free(ext_actions);
5545 * Create meter internal drop flow with the original pattern.
5548 * Pointer to Ethernet device.
5550 * Parent flow structure pointer.
5552 * Flow rule attributes.
5554 * Pattern specification (list terminated by the END pattern item).
5555 * @param[in] flow_split_info
5556 * Pointer to flow split info structure.
5558 * Pointer to flow meter structure.
5560 * Perform verbose error reporting if not NULL.
5562 * 0 on success, negative value otherwise
5565 flow_meter_create_drop_flow_with_org_pattern(struct rte_eth_dev *dev,
5566 struct rte_flow *flow,
5567 const struct rte_flow_attr *attr,
5568 const struct rte_flow_item items[],
5569 struct mlx5_flow_split_info *flow_split_info,
5570 struct mlx5_flow_meter_info *fm,
5571 struct rte_flow_error *error)
5573 struct mlx5_flow *dev_flow = NULL;
5574 struct rte_flow_attr drop_attr = *attr;
5575 struct rte_flow_action drop_actions[3];
5576 struct mlx5_flow_split_info drop_split_info = *flow_split_info;
5578 MLX5_ASSERT(fm->drop_cnt);
5579 drop_actions[0].type =
5580 (enum rte_flow_action_type)MLX5_RTE_FLOW_ACTION_TYPE_COUNT;
5581 drop_actions[0].conf = (void *)(uintptr_t)fm->drop_cnt;
5582 drop_actions[1].type = RTE_FLOW_ACTION_TYPE_DROP;
5583 drop_actions[1].conf = NULL;
5584 drop_actions[2].type = RTE_FLOW_ACTION_TYPE_END;
5585 drop_actions[2].conf = NULL;
5586 drop_split_info.external = false;
5587 drop_split_info.skip_scale |= 1 << MLX5_SCALE_FLOW_GROUP_BIT;
5588 drop_split_info.table_id = MLX5_MTR_TABLE_ID_DROP;
5589 drop_attr.group = MLX5_FLOW_TABLE_LEVEL_METER;
5590 return flow_create_split_inner(dev, flow, &dev_flow,
5591 &drop_attr, items, drop_actions,
5592 &drop_split_info, error);
5596 * The splitting for meter feature.
5598 * - The meter flow will be split to two flows as prefix and
5599 * suffix flow. The packets make sense only it pass the prefix
5602 * - Reg_C_5 is used for the packet to match betweend prefix and
5606 * Pointer to Ethernet device.
5608 * Parent flow structure pointer.
5610 * Flow rule attributes.
5612 * Pattern specification (list terminated by the END pattern item).
5613 * @param[in] actions
5614 * Associated actions (list terminated by the END action).
5615 * @param[in] flow_split_info
5616 * Pointer to flow split info structure.
5618 * Perform verbose error reporting if not NULL.
5620 * 0 on success, negative value otherwise
5623 flow_create_split_meter(struct rte_eth_dev *dev,
5624 struct rte_flow *flow,
5625 const struct rte_flow_attr *attr,
5626 const struct rte_flow_item items[],
5627 const struct rte_flow_action actions[],
5628 struct mlx5_flow_split_info *flow_split_info,
5629 struct rte_flow_error *error)
5631 struct mlx5_priv *priv = dev->data->dev_private;
5632 struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
5633 struct rte_flow_action *sfx_actions = NULL;
5634 struct rte_flow_action *pre_actions = NULL;
5635 struct rte_flow_item *sfx_items = NULL;
5636 struct mlx5_flow *dev_flow = NULL;
5637 struct rte_flow_attr sfx_attr = *attr;
5638 struct mlx5_flow_meter_info *fm = NULL;
5639 uint8_t skip_scale_restore;
5640 bool has_mtr = false;
5641 bool has_modify = false;
5642 bool set_mtr_reg = true;
5643 uint32_t meter_id = 0;
5644 uint32_t mtr_idx = 0;
5645 uint32_t mtr_flow_id = 0;
5652 actions_n = flow_check_meter_action(dev, actions, &has_mtr,
5653 &has_modify, &meter_id);
5656 fm = flow_dv_meter_find_by_idx(priv, flow->meter);
5658 return rte_flow_error_set(error, EINVAL,
5659 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5660 NULL, "Meter not found.");
5662 fm = mlx5_flow_meter_find(priv, meter_id, &mtr_idx);
5664 return rte_flow_error_set(error, EINVAL,
5665 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
5666 NULL, "Meter not found.");
5667 ret = mlx5_flow_meter_attach(priv, fm,
5671 flow->meter = mtr_idx;
5676 * If it isn't default-policy Meter, and
5677 * 1. There's no action in flow to change
5678 * packet (modify/encap/decap etc.), OR
5679 * 2. No drop count needed for this meter.
5680 * no need to use regC to save meter id anymore.
5682 if (!fm->def_policy && (!has_modify || !fm->drop_cnt))
5683 set_mtr_reg = false;
5684 /* Prefix actions: meter, decap, encap, tag, jump, end. */
5685 act_size = sizeof(struct rte_flow_action) * (actions_n + 6) +
5686 sizeof(struct mlx5_rte_flow_action_set_tag);
5687 /* Suffix items: tag, vlan, port id, end. */
5688 #define METER_SUFFIX_ITEM 4
5689 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
5690 sizeof(struct mlx5_rte_flow_item_tag) * 2;
5691 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size),
5694 return rte_flow_error_set(error, ENOMEM,
5695 RTE_FLOW_ERROR_TYPE_ACTION,
5696 NULL, "no memory to split "
5698 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
5700 /* There's no suffix flow for meter of non-default policy. */
5701 if (!fm->def_policy)
5702 pre_actions = sfx_actions + 1;
5704 pre_actions = sfx_actions + actions_n;
5705 ret = flow_meter_split_prep(dev, flow, fm, &sfx_attr,
5706 items, sfx_items, actions,
5707 sfx_actions, pre_actions,
5708 (set_mtr_reg ? &mtr_flow_id : NULL),
5714 /* Add the prefix subflow. */
5715 flow_split_info->prefix_mark = 0;
5716 skip_scale_restore = flow_split_info->skip_scale;
5717 flow_split_info->skip_scale |=
5718 1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
5719 ret = flow_create_split_inner(dev, flow, &dev_flow,
5720 attr, items, pre_actions,
5721 flow_split_info, error);
5722 flow_split_info->skip_scale = skip_scale_restore;
5725 mlx5_ipool_free(fm->flow_ipool, mtr_flow_id);
5730 dev_flow->handle->split_flow_id = mtr_flow_id;
5731 dev_flow->handle->is_meter_flow_id = 1;
5733 if (!fm->def_policy) {
5734 if (!set_mtr_reg && fm->drop_cnt)
5736 flow_meter_create_drop_flow_with_org_pattern(dev, flow,
5742 /* Setting the sfx group atrr. */
5743 sfx_attr.group = sfx_attr.transfer ?
5744 (MLX5_FLOW_TABLE_LEVEL_METER - 1) :
5745 MLX5_FLOW_TABLE_LEVEL_METER;
5746 flow_split_info->prefix_layers =
5747 flow_get_prefix_layer_flags(dev_flow);
5748 flow_split_info->prefix_mark = dev_flow->handle->mark;
5749 flow_split_info->table_id = MLX5_MTR_TABLE_ID_SUFFIX;
5751 /* Add the prefix subflow. */
5752 ret = flow_create_split_metadata(dev, flow,
5753 &sfx_attr, sfx_items ?
5755 sfx_actions ? sfx_actions : actions,
5756 flow_split_info, error);
5759 mlx5_free(sfx_actions);
5764 * The splitting for sample feature.
5766 * Once Sample action is detected in the action list, the flow actions should
5767 * be split into prefix sub flow and suffix sub flow.
5769 * The original items remain in the prefix sub flow, all actions preceding the
5770 * sample action and the sample action itself will be copied to the prefix
5771 * sub flow, the actions following the sample action will be copied to the
5772 * suffix sub flow, Queue action always be located in the suffix sub flow.
5774 * In order to make the packet from prefix sub flow matches with suffix sub
5775 * flow, an extra tag action be added into prefix sub flow, and the suffix sub
5776 * flow uses tag item with the unique flow id.
5779 * Pointer to Ethernet device.
5781 * Parent flow structure pointer.
5783 * Flow rule attributes.
5785 * Pattern specification (list terminated by the END pattern item).
5786 * @param[in] actions
5787 * Associated actions (list terminated by the END action).
5788 * @param[in] flow_split_info
5789 * Pointer to flow split info structure.
5791 * Perform verbose error reporting if not NULL.
5793 * 0 on success, negative value otherwise
5796 flow_create_split_sample(struct rte_eth_dev *dev,
5797 struct rte_flow *flow,
5798 const struct rte_flow_attr *attr,
5799 const struct rte_flow_item items[],
5800 const struct rte_flow_action actions[],
5801 struct mlx5_flow_split_info *flow_split_info,
5802 struct rte_flow_error *error)
5804 struct mlx5_priv *priv = dev->data->dev_private;
5805 struct rte_flow_action *sfx_actions = NULL;
5806 struct rte_flow_action *pre_actions = NULL;
5807 struct rte_flow_item *sfx_items = NULL;
5808 struct mlx5_flow *dev_flow = NULL;
5809 struct rte_flow_attr sfx_attr = *attr;
5810 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
5811 struct mlx5_flow_dv_sample_resource *sample_res;
5812 struct mlx5_flow_tbl_data_entry *sfx_tbl_data;
5813 struct mlx5_flow_tbl_resource *sfx_tbl;
5817 uint32_t fdb_tx = 0;
5820 int sample_action_pos;
5821 int qrss_action_pos;
5823 int modify_after_mirror = 0;
5824 uint16_t jump_table = 0;
5825 const uint32_t next_ft_step = 1;
5828 if (priv->sampler_en)
5829 actions_n = flow_check_match_action(actions, attr,
5830 RTE_FLOW_ACTION_TYPE_SAMPLE,
5831 &sample_action_pos, &qrss_action_pos,
5832 &modify_after_mirror);
5834 /* The prefix actions must includes sample, tag, end. */
5835 act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1)
5836 + sizeof(struct mlx5_rte_flow_action_set_tag);
5837 item_size = sizeof(struct rte_flow_item) * SAMPLE_SUFFIX_ITEM +
5838 sizeof(struct mlx5_rte_flow_item_tag) * 2;
5839 sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size +
5840 item_size), 0, SOCKET_ID_ANY);
5842 return rte_flow_error_set(error, ENOMEM,
5843 RTE_FLOW_ERROR_TYPE_ACTION,
5844 NULL, "no memory to split "
5846 /* The representor_id is -1 for uplink. */
5847 fdb_tx = (attr->transfer && priv->representor_id != -1);
5849 * When reg_c_preserve is set, metadata registers Cx preserve
5850 * their value even through packet duplication.
5852 add_tag = (!fdb_tx || priv->config.hca_attr.reg_c_preserve);
5854 sfx_items = (struct rte_flow_item *)((char *)sfx_actions
5856 if (modify_after_mirror)
5857 jump_table = attr->group * MLX5_FLOW_TABLE_FACTOR +
5859 pre_actions = sfx_actions + actions_n;
5860 tag_id = flow_sample_split_prep(dev, add_tag, sfx_items,
5861 actions, sfx_actions,
5862 pre_actions, actions_n,
5864 qrss_action_pos, jump_table,
5866 if (tag_id < 0 || (add_tag && !tag_id)) {
5870 if (modify_after_mirror)
5871 flow_split_info->skip_scale =
5872 1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT;
5873 /* Add the prefix subflow. */
5874 ret = flow_create_split_inner(dev, flow, &dev_flow, attr,
5876 flow_split_info, error);
5881 dev_flow->handle->split_flow_id = tag_id;
5882 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
5883 if (!modify_after_mirror) {
5884 /* Set the sfx group attr. */
5885 sample_res = (struct mlx5_flow_dv_sample_resource *)
5886 dev_flow->dv.sample_res;
5887 sfx_tbl = (struct mlx5_flow_tbl_resource *)
5888 sample_res->normal_path_tbl;
5889 sfx_tbl_data = container_of(sfx_tbl,
5890 struct mlx5_flow_tbl_data_entry,
5892 sfx_attr.group = sfx_attr.transfer ?
5893 (sfx_tbl_data->level - 1) : sfx_tbl_data->level;
5895 MLX5_ASSERT(attr->transfer);
5896 sfx_attr.group = jump_table;
5898 flow_split_info->prefix_layers =
5899 flow_get_prefix_layer_flags(dev_flow);
5900 flow_split_info->prefix_mark = dev_flow->handle->mark;
5901 /* Suffix group level already be scaled with factor, set
5902 * MLX5_SCALE_FLOW_GROUP_BIT of skip_scale to 1 to avoid scale
5903 * again in translation.
5905 flow_split_info->skip_scale = 1 << MLX5_SCALE_FLOW_GROUP_BIT;
5908 /* Add the suffix subflow. */
5909 ret = flow_create_split_meter(dev, flow, &sfx_attr,
5910 sfx_items ? sfx_items : items,
5911 sfx_actions ? sfx_actions : actions,
5912 flow_split_info, error);
5915 mlx5_free(sfx_actions);
5920 * Split the flow to subflow set. The splitters might be linked
5921 * in the chain, like this:
5922 * flow_create_split_outer() calls:
5923 * flow_create_split_meter() calls:
5924 * flow_create_split_metadata(meter_subflow_0) calls:
5925 * flow_create_split_inner(metadata_subflow_0)
5926 * flow_create_split_inner(metadata_subflow_1)
5927 * flow_create_split_inner(metadata_subflow_2)
5928 * flow_create_split_metadata(meter_subflow_1) calls:
5929 * flow_create_split_inner(metadata_subflow_0)
5930 * flow_create_split_inner(metadata_subflow_1)
5931 * flow_create_split_inner(metadata_subflow_2)
5933 * This provide flexible way to add new levels of flow splitting.
5934 * The all of successfully created subflows are included to the
5935 * parent flow dev_flow list.
5938 * Pointer to Ethernet device.
5940 * Parent flow structure pointer.
5942 * Flow rule attributes.
5944 * Pattern specification (list terminated by the END pattern item).
5945 * @param[in] actions
5946 * Associated actions (list terminated by the END action).
5947 * @param[in] flow_split_info
5948 * Pointer to flow split info structure.
5950 * Perform verbose error reporting if not NULL.
5952 * 0 on success, negative value otherwise
5955 flow_create_split_outer(struct rte_eth_dev *dev,
5956 struct rte_flow *flow,
5957 const struct rte_flow_attr *attr,
5958 const struct rte_flow_item items[],
5959 const struct rte_flow_action actions[],
5960 struct mlx5_flow_split_info *flow_split_info,
5961 struct rte_flow_error *error)
5965 ret = flow_create_split_sample(dev, flow, attr, items,
5966 actions, flow_split_info, error);
5967 MLX5_ASSERT(ret <= 0);
5971 static struct mlx5_flow_tunnel *
5972 flow_tunnel_from_rule(struct rte_eth_dev *dev,
5973 const struct rte_flow_attr *attr,
5974 const struct rte_flow_item items[],
5975 const struct rte_flow_action actions[])
5977 struct mlx5_flow_tunnel *tunnel;
5979 #pragma GCC diagnostic push
5980 #pragma GCC diagnostic ignored "-Wcast-qual"
5981 if (is_flow_tunnel_match_rule(dev, attr, items, actions))
5982 tunnel = (struct mlx5_flow_tunnel *)items[0].spec;
5983 else if (is_flow_tunnel_steer_rule(dev, attr, items, actions))
5984 tunnel = (struct mlx5_flow_tunnel *)actions[0].conf;
5987 #pragma GCC diagnostic pop
5993 * Adjust flow RSS workspace if needed.
5996 * Pointer to thread flow work space.
5998 * Pointer to RSS descriptor.
5999 * @param[in] nrssq_num
6000 * New RSS queue number.
6003 * 0 on success, -1 otherwise and rte_errno is set.
6006 flow_rss_workspace_adjust(struct mlx5_flow_workspace *wks,
6007 struct mlx5_flow_rss_desc *rss_desc,
6010 if (likely(nrssq_num <= wks->rssq_num))
6012 rss_desc->queue = realloc(rss_desc->queue,
6013 sizeof(*rss_desc->queue) * RTE_ALIGN(nrssq_num, 2));
6014 if (!rss_desc->queue) {
6018 wks->rssq_num = RTE_ALIGN(nrssq_num, 2);
6023 * Create a flow and add it to @p list.
6026 * Pointer to Ethernet device.
6028 * Pointer to a TAILQ flow list. If this parameter NULL,
6029 * no list insertion occurred, flow is just created,
6030 * this is caller's responsibility to track the
6033 * Flow rule attributes.
6035 * Pattern specification (list terminated by the END pattern item).
6036 * @param[in] actions
6037 * Associated actions (list terminated by the END action).
6038 * @param[in] external
6039 * This flow rule is created by request external to PMD.
6041 * Perform verbose error reporting if not NULL.
6044 * A flow index on success, 0 otherwise and rte_errno is set.
6047 flow_list_create(struct rte_eth_dev *dev, uint32_t *list,
6048 const struct rte_flow_attr *attr,
6049 const struct rte_flow_item items[],
6050 const struct rte_flow_action original_actions[],
6051 bool external, struct rte_flow_error *error)
6053 struct mlx5_priv *priv = dev->data->dev_private;
6054 struct rte_flow *flow = NULL;
6055 struct mlx5_flow *dev_flow;
6056 const struct rte_flow_action_rss *rss = NULL;
6057 struct mlx5_translated_action_handle
6058 indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
6059 int indir_actions_n = MLX5_MAX_INDIRECT_ACTIONS;
6061 struct mlx5_flow_expand_rss buf;
6062 uint8_t buffer[2048];
6065 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
6066 uint8_t buffer[2048];
6069 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
6070 uint8_t buffer[2048];
6071 } actions_hairpin_tx;
6073 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
6074 uint8_t buffer[2048];
6076 struct mlx5_flow_expand_rss *buf = &expand_buffer.buf;
6077 struct mlx5_flow_rss_desc *rss_desc;
6078 const struct rte_flow_action *p_actions_rx;
6082 struct rte_flow_attr attr_tx = { .priority = 0 };
6083 const struct rte_flow_action *actions;
6084 struct rte_flow_action *translated_actions = NULL;
6085 struct mlx5_flow_tunnel *tunnel;
6086 struct tunnel_default_miss_ctx default_miss_ctx = { 0, };
6087 struct mlx5_flow_workspace *wks = mlx5_flow_push_thread_workspace();
6088 struct mlx5_flow_split_info flow_split_info = {
6089 .external = !!external,
6099 rss_desc = &wks->rss_desc;
6100 ret = flow_action_handles_translate(dev, original_actions,
6103 &translated_actions, error);
6105 MLX5_ASSERT(translated_actions == NULL);
6108 actions = translated_actions ? translated_actions : original_actions;
6109 p_actions_rx = actions;
6110 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
6111 ret = flow_drv_validate(dev, attr, items, p_actions_rx,
6112 external, hairpin_flow, error);
6114 goto error_before_hairpin_split;
6115 flow = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], &idx);
6118 goto error_before_hairpin_split;
6120 if (hairpin_flow > 0) {
6121 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
6123 goto error_before_hairpin_split;
6125 flow_hairpin_split(dev, actions, actions_rx.actions,
6126 actions_hairpin_tx.actions, items_tx.items,
6128 p_actions_rx = actions_rx.actions;
6130 flow_split_info.flow_idx = idx;
6131 flow->drv_type = flow_get_drv_type(dev, attr);
6132 MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
6133 flow->drv_type < MLX5_FLOW_TYPE_MAX);
6134 memset(rss_desc, 0, offsetof(struct mlx5_flow_rss_desc, queue));
6135 /* RSS Action only works on NIC RX domain */
6136 if (attr->ingress && !attr->transfer)
6137 rss = flow_get_rss_action(dev, p_actions_rx);
6139 if (flow_rss_workspace_adjust(wks, rss_desc, rss->queue_num))
6142 * The following information is required by
6143 * mlx5_flow_hashfields_adjust() in advance.
6145 rss_desc->level = rss->level;
6146 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
6147 rss_desc->types = !rss->types ? ETH_RSS_IP : rss->types;
6149 flow->dev_handles = 0;
6150 if (rss && rss->types) {
6151 unsigned int graph_root;
6153 graph_root = find_graph_root(items, rss->level);
6154 ret = mlx5_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
6156 mlx5_support_expansion, graph_root);
6157 MLX5_ASSERT(ret > 0 &&
6158 (unsigned int)ret < sizeof(expand_buffer.buffer));
6161 buf->entry[0].pattern = (void *)(uintptr_t)items;
6163 rss_desc->shared_rss = flow_get_shared_rss_action(dev, indir_actions,
6165 for (i = 0; i < buf->entries; ++i) {
6166 /* Initialize flow split data. */
6167 flow_split_info.prefix_layers = 0;
6168 flow_split_info.prefix_mark = 0;
6169 flow_split_info.skip_scale = 0;
6171 * The splitter may create multiple dev_flows,
6172 * depending on configuration. In the simplest
6173 * case it just creates unmodified original flow.
6175 ret = flow_create_split_outer(dev, flow, attr,
6176 buf->entry[i].pattern,
6177 p_actions_rx, &flow_split_info,
6181 if (is_flow_tunnel_steer_rule(dev, attr,
6182 buf->entry[i].pattern,
6184 ret = flow_tunnel_add_default_miss(dev, flow, attr,
6190 mlx5_free(default_miss_ctx.queue);
6195 /* Create the tx flow. */
6197 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
6198 attr_tx.ingress = 0;
6200 dev_flow = flow_drv_prepare(dev, flow, &attr_tx, items_tx.items,
6201 actions_hairpin_tx.actions,
6205 dev_flow->flow = flow;
6206 dev_flow->external = 0;
6207 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
6208 dev_flow->handle, next);
6209 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
6211 actions_hairpin_tx.actions, error);
6216 * Update the metadata register copy table. If extensive
6217 * metadata feature is enabled and registers are supported
6218 * we might create the extra rte_flow for each unique
6219 * MARK/FLAG action ID.
6221 * The table is updated for ingress Flows only, because
6222 * the egress Flows belong to the different device and
6223 * copy table should be updated in peer NIC Rx domain.
6225 if (attr->ingress &&
6226 (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
6227 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
6232 * If the flow is external (from application) OR device is started,
6233 * OR mreg discover, then apply immediately.
6235 if (external || dev->data->dev_started ||
6236 (attr->group == MLX5_FLOW_MREG_CP_TABLE_GROUP &&
6237 attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)) {
6238 ret = flow_drv_apply(dev, flow, error);
6243 rte_spinlock_lock(&priv->flow_list_lock);
6244 ILIST_INSERT(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, idx,
6246 rte_spinlock_unlock(&priv->flow_list_lock);
6248 flow_rxq_flags_set(dev, flow);
6249 rte_free(translated_actions);
6250 tunnel = flow_tunnel_from_rule(dev, attr, items, actions);
6253 flow->tunnel_id = tunnel->tunnel_id;
6254 __atomic_add_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED);
6255 mlx5_free(default_miss_ctx.queue);
6257 mlx5_flow_pop_thread_workspace();
6261 ret = rte_errno; /* Save rte_errno before cleanup. */
6262 flow_mreg_del_copy_action(dev, flow);
6263 flow_drv_destroy(dev, flow);
6264 if (rss_desc->shared_rss)
6265 __atomic_sub_fetch(&((struct mlx5_shared_action_rss *)
6267 (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
6268 rss_desc->shared_rss))->refcnt, 1, __ATOMIC_RELAXED);
6269 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], idx);
6270 rte_errno = ret; /* Restore rte_errno. */
6273 mlx5_flow_pop_thread_workspace();
6274 error_before_hairpin_split:
6275 rte_free(translated_actions);
6280 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
6281 * incoming packets to table 1.
6283 * Other flow rules, requested for group n, will be created in
6284 * e-switch table n+1.
6285 * Jump action to e-switch group n will be created to group n+1.
6287 * Used when working in switchdev mode, to utilise advantages of table 1
6291 * Pointer to Ethernet device.
6294 * Pointer to flow on success, NULL otherwise and rte_errno is set.
6297 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
6299 const struct rte_flow_attr attr = {
6306 const struct rte_flow_item pattern = {
6307 .type = RTE_FLOW_ITEM_TYPE_END,
6309 struct rte_flow_action_jump jump = {
6312 const struct rte_flow_action actions[] = {
6314 .type = RTE_FLOW_ACTION_TYPE_JUMP,
6318 .type = RTE_FLOW_ACTION_TYPE_END,
6321 struct mlx5_priv *priv = dev->data->dev_private;
6322 struct rte_flow_error error;
6324 return (void *)(uintptr_t)flow_list_create(dev, &priv->ctrl_flows,
6326 actions, false, &error);
6330 * Validate a flow supported by the NIC.
6332 * @see rte_flow_validate()
6336 mlx5_flow_validate(struct rte_eth_dev *dev,
6337 const struct rte_flow_attr *attr,
6338 const struct rte_flow_item items[],
6339 const struct rte_flow_action original_actions[],
6340 struct rte_flow_error *error)
6343 struct mlx5_translated_action_handle
6344 indir_actions[MLX5_MAX_INDIRECT_ACTIONS];
6345 int indir_actions_n = MLX5_MAX_INDIRECT_ACTIONS;
6346 const struct rte_flow_action *actions;
6347 struct rte_flow_action *translated_actions = NULL;
6348 int ret = flow_action_handles_translate(dev, original_actions,
6351 &translated_actions, error);
6355 actions = translated_actions ? translated_actions : original_actions;
6356 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
6357 ret = flow_drv_validate(dev, attr, items, actions,
6358 true, hairpin_flow, error);
6359 rte_free(translated_actions);
6366 * @see rte_flow_create()
6370 mlx5_flow_create(struct rte_eth_dev *dev,
6371 const struct rte_flow_attr *attr,
6372 const struct rte_flow_item items[],
6373 const struct rte_flow_action actions[],
6374 struct rte_flow_error *error)
6376 struct mlx5_priv *priv = dev->data->dev_private;
6379 * If the device is not started yet, it is not allowed to created a
6380 * flow from application. PMD default flows and traffic control flows
6383 if (unlikely(!dev->data->dev_started)) {
6384 DRV_LOG(DEBUG, "port %u is not started when "
6385 "inserting a flow", dev->data->port_id);
6386 rte_flow_error_set(error, ENODEV,
6387 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6389 "port not started");
6393 return (void *)(uintptr_t)flow_list_create(dev, &priv->flows,
6394 attr, items, actions, true, error);
6398 * Destroy a flow in a list.
6401 * Pointer to Ethernet device.
6403 * Pointer to the Indexed flow list. If this parameter NULL,
6404 * there is no flow removal from the list. Be noted that as
6405 * flow is add to the indexed list, memory of the indexed
6406 * list points to maybe changed as flow destroyed.
6407 * @param[in] flow_idx
6408 * Index of flow to destroy.
6411 flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list,
6414 struct mlx5_priv *priv = dev->data->dev_private;
6415 struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool
6416 [MLX5_IPOOL_RTE_FLOW], flow_idx);
6421 * Update RX queue flags only if port is started, otherwise it is
6424 if (dev->data->dev_started)
6425 flow_rxq_flags_trim(dev, flow);
6426 flow_drv_destroy(dev, flow);
6428 rte_spinlock_lock(&priv->flow_list_lock);
6429 ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list,
6430 flow_idx, flow, next);
6431 rte_spinlock_unlock(&priv->flow_list_lock);
6434 struct mlx5_flow_tunnel *tunnel;
6436 tunnel = mlx5_find_tunnel_id(dev, flow->tunnel_id);
6438 if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
6439 mlx5_flow_tunnel_free(dev, tunnel);
6441 flow_mreg_del_copy_action(dev, flow);
6442 mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx);
6446 * Destroy all flows.
6449 * Pointer to Ethernet device.
6451 * Pointer to the Indexed flow list.
6453 * If flushing is called avtively.
6456 mlx5_flow_list_flush(struct rte_eth_dev *dev, uint32_t *list, bool active)
6458 uint32_t num_flushed = 0;
6461 flow_list_destroy(dev, list, *list);
6465 DRV_LOG(INFO, "port %u: %u flows flushed before stopping",
6466 dev->data->port_id, num_flushed);
6471 * Stop all default actions for flows.
6474 * Pointer to Ethernet device.
6477 mlx5_flow_stop_default(struct rte_eth_dev *dev)
6479 flow_mreg_del_default_copy_action(dev);
6480 flow_rxq_flags_clear(dev);
6484 * Start all default actions for flows.
6487 * Pointer to Ethernet device.
6489 * 0 on success, a negative errno value otherwise and rte_errno is set.
6492 mlx5_flow_start_default(struct rte_eth_dev *dev)
6494 struct rte_flow_error error;
6496 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
6497 return flow_mreg_add_default_copy_action(dev, &error);
6501 * Release key of thread specific flow workspace data.
6504 flow_release_workspace(void *data)
6506 struct mlx5_flow_workspace *wks = data;
6507 struct mlx5_flow_workspace *next;
6511 free(wks->rss_desc.queue);
6518 * Get thread specific current flow workspace.
6520 * @return pointer to thread specific flow workspace data, NULL on error.
6522 struct mlx5_flow_workspace*
6523 mlx5_flow_get_thread_workspace(void)
6525 struct mlx5_flow_workspace *data;
6527 data = mlx5_flow_os_get_specific_workspace();
6528 MLX5_ASSERT(data && data->inuse);
6529 if (!data || !data->inuse)
6530 DRV_LOG(ERR, "flow workspace not initialized.");
6535 * Allocate and init new flow workspace.
6537 * @return pointer to flow workspace data, NULL on error.
6539 static struct mlx5_flow_workspace*
6540 flow_alloc_thread_workspace(void)
6542 struct mlx5_flow_workspace *data = calloc(1, sizeof(*data));
6545 DRV_LOG(ERR, "Failed to allocate flow workspace "
6549 data->rss_desc.queue = calloc(1,
6550 sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM);
6551 if (!data->rss_desc.queue)
6553 data->rssq_num = MLX5_RSSQ_DEFAULT_NUM;
6556 if (data->rss_desc.queue)
6557 free(data->rss_desc.queue);
6563 * Get new thread specific flow workspace.
6565 * If current workspace inuse, create new one and set as current.
6567 * @return pointer to thread specific flow workspace data, NULL on error.
6569 static struct mlx5_flow_workspace*
6570 mlx5_flow_push_thread_workspace(void)
6572 struct mlx5_flow_workspace *curr;
6573 struct mlx5_flow_workspace *data;
6575 curr = mlx5_flow_os_get_specific_workspace();
6577 data = flow_alloc_thread_workspace();
6580 } else if (!curr->inuse) {
6582 } else if (curr->next) {
6585 data = flow_alloc_thread_workspace();
6593 /* Set as current workspace */
6594 if (mlx5_flow_os_set_specific_workspace(data))
6595 DRV_LOG(ERR, "Failed to set flow workspace to thread.");
6600 * Close current thread specific flow workspace.
6602 * If previous workspace available, set it as current.
6604 * @return pointer to thread specific flow workspace data, NULL on error.
6607 mlx5_flow_pop_thread_workspace(void)
6609 struct mlx5_flow_workspace *data = mlx5_flow_get_thread_workspace();
6614 DRV_LOG(ERR, "Failed to close unused flow workspace.");
6620 if (mlx5_flow_os_set_specific_workspace(data->prev))
6621 DRV_LOG(ERR, "Failed to set flow workspace to thread.");
6625 * Verify the flow list is empty
6628 * Pointer to Ethernet device.
6630 * @return the number of flows not released.
6633 mlx5_flow_verify(struct rte_eth_dev *dev)
6635 struct mlx5_priv *priv = dev->data->dev_private;
6636 struct rte_flow *flow;
6640 ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], priv->flows, idx,
6642 DRV_LOG(DEBUG, "port %u flow %p still referenced",
6643 dev->data->port_id, (void *)flow);
6650 * Enable default hairpin egress flow.
6653 * Pointer to Ethernet device.
6658 * 0 on success, a negative errno value otherwise and rte_errno is set.
6661 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
6664 struct mlx5_priv *priv = dev->data->dev_private;
6665 const struct rte_flow_attr attr = {
6669 struct mlx5_rte_flow_item_tx_queue queue_spec = {
6672 struct mlx5_rte_flow_item_tx_queue queue_mask = {
6673 .queue = UINT32_MAX,
6675 struct rte_flow_item items[] = {
6677 .type = (enum rte_flow_item_type)
6678 MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
6679 .spec = &queue_spec,
6681 .mask = &queue_mask,
6684 .type = RTE_FLOW_ITEM_TYPE_END,
6687 struct rte_flow_action_jump jump = {
6688 .group = MLX5_HAIRPIN_TX_TABLE,
6690 struct rte_flow_action actions[2];
6692 struct rte_flow_error error;
6694 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
6695 actions[0].conf = &jump;
6696 actions[1].type = RTE_FLOW_ACTION_TYPE_END;
6697 flow_idx = flow_list_create(dev, &priv->ctrl_flows,
6698 &attr, items, actions, false, &error);
6701 "Failed to create ctrl flow: rte_errno(%d),"
6702 " type(%d), message(%s)",
6703 rte_errno, error.type,
6704 error.message ? error.message : " (no stated reason)");
6711 * Enable a control flow configured from the control plane.
6714 * Pointer to Ethernet device.
6716 * An Ethernet flow spec to apply.
6718 * An Ethernet flow mask to apply.
6720 * A VLAN flow spec to apply.
6722 * A VLAN flow mask to apply.
6725 * 0 on success, a negative errno value otherwise and rte_errno is set.
6728 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
6729 struct rte_flow_item_eth *eth_spec,
6730 struct rte_flow_item_eth *eth_mask,
6731 struct rte_flow_item_vlan *vlan_spec,
6732 struct rte_flow_item_vlan *vlan_mask)
6734 struct mlx5_priv *priv = dev->data->dev_private;
6735 const struct rte_flow_attr attr = {
6737 .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
6739 struct rte_flow_item items[] = {
6741 .type = RTE_FLOW_ITEM_TYPE_ETH,
6747 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
6748 RTE_FLOW_ITEM_TYPE_END,
6754 .type = RTE_FLOW_ITEM_TYPE_END,
6757 uint16_t queue[priv->reta_idx_n];
6758 struct rte_flow_action_rss action_rss = {
6759 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
6761 .types = priv->rss_conf.rss_hf,
6762 .key_len = priv->rss_conf.rss_key_len,
6763 .queue_num = priv->reta_idx_n,
6764 .key = priv->rss_conf.rss_key,
6767 struct rte_flow_action actions[] = {
6769 .type = RTE_FLOW_ACTION_TYPE_RSS,
6770 .conf = &action_rss,
6773 .type = RTE_FLOW_ACTION_TYPE_END,
6777 struct rte_flow_error error;
6780 if (!priv->reta_idx_n || !priv->rxqs_n) {
6783 if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG))
6784 action_rss.types = 0;
6785 for (i = 0; i != priv->reta_idx_n; ++i)
6786 queue[i] = (*priv->reta_idx)[i];
6787 flow_idx = flow_list_create(dev, &priv->ctrl_flows,
6788 &attr, items, actions, false, &error);
6795 * Enable a flow control configured from the control plane.
6798 * Pointer to Ethernet device.
6800 * An Ethernet flow spec to apply.
6802 * An Ethernet flow mask to apply.
6805 * 0 on success, a negative errno value otherwise and rte_errno is set.
6808 mlx5_ctrl_flow(struct rte_eth_dev *dev,
6809 struct rte_flow_item_eth *eth_spec,
6810 struct rte_flow_item_eth *eth_mask)
6812 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
6816 * Create default miss flow rule matching lacp traffic
6819 * Pointer to Ethernet device.
6821 * An Ethernet flow spec to apply.
6824 * 0 on success, a negative errno value otherwise and rte_errno is set.
6827 mlx5_flow_lacp_miss(struct rte_eth_dev *dev)
6829 struct mlx5_priv *priv = dev->data->dev_private;
6831 * The LACP matching is done by only using ether type since using
6832 * a multicast dst mac causes kernel to give low priority to this flow.
6834 static const struct rte_flow_item_eth lacp_spec = {
6835 .type = RTE_BE16(0x8809),
6837 static const struct rte_flow_item_eth lacp_mask = {
6840 const struct rte_flow_attr attr = {
6843 struct rte_flow_item items[] = {
6845 .type = RTE_FLOW_ITEM_TYPE_ETH,
6850 .type = RTE_FLOW_ITEM_TYPE_END,
6853 struct rte_flow_action actions[] = {
6855 .type = (enum rte_flow_action_type)
6856 MLX5_RTE_FLOW_ACTION_TYPE_DEFAULT_MISS,
6859 .type = RTE_FLOW_ACTION_TYPE_END,
6862 struct rte_flow_error error;
6863 uint32_t flow_idx = flow_list_create(dev, &priv->ctrl_flows,
6864 &attr, items, actions, false, &error);
6874 * @see rte_flow_destroy()
6878 mlx5_flow_destroy(struct rte_eth_dev *dev,
6879 struct rte_flow *flow,
6880 struct rte_flow_error *error __rte_unused)
6882 struct mlx5_priv *priv = dev->data->dev_private;
6884 flow_list_destroy(dev, &priv->flows, (uintptr_t)(void *)flow);
6889 * Destroy all flows.
6891 * @see rte_flow_flush()
6895 mlx5_flow_flush(struct rte_eth_dev *dev,
6896 struct rte_flow_error *error __rte_unused)
6898 struct mlx5_priv *priv = dev->data->dev_private;
6900 mlx5_flow_list_flush(dev, &priv->flows, false);
6907 * @see rte_flow_isolate()
6911 mlx5_flow_isolate(struct rte_eth_dev *dev,
6913 struct rte_flow_error *error)
6915 struct mlx5_priv *priv = dev->data->dev_private;
6917 if (dev->data->dev_started) {
6918 rte_flow_error_set(error, EBUSY,
6919 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6921 "port must be stopped first");
6924 priv->isolated = !!enable;
6926 dev->dev_ops = &mlx5_dev_ops_isolate;
6928 dev->dev_ops = &mlx5_dev_ops;
6930 dev->rx_descriptor_status = mlx5_rx_descriptor_status;
6931 dev->tx_descriptor_status = mlx5_tx_descriptor_status;
6939 * @see rte_flow_query()
6943 flow_drv_query(struct rte_eth_dev *dev,
6945 const struct rte_flow_action *actions,
6947 struct rte_flow_error *error)
6949 struct mlx5_priv *priv = dev->data->dev_private;
6950 const struct mlx5_flow_driver_ops *fops;
6951 struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool
6952 [MLX5_IPOOL_RTE_FLOW],
6954 enum mlx5_flow_drv_type ftype;
6957 return rte_flow_error_set(error, ENOENT,
6958 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
6960 "invalid flow handle");
6962 ftype = flow->drv_type;
6963 MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
6964 fops = flow_get_drv_ops(ftype);
6966 return fops->query(dev, flow, actions, data, error);
6972 * @see rte_flow_query()
6976 mlx5_flow_query(struct rte_eth_dev *dev,
6977 struct rte_flow *flow,
6978 const struct rte_flow_action *actions,
6980 struct rte_flow_error *error)
6984 ret = flow_drv_query(dev, (uintptr_t)(void *)flow, actions, data,
6992 * Get rte_flow callbacks.
6995 * Pointer to Ethernet device structure.
6997 * Pointer to operation-specific structure.
7002 mlx5_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
7003 const struct rte_flow_ops **ops)
7005 *ops = &mlx5_flow_ops;
7010 * Validate meter policy actions.
7011 * Dispatcher for action type specific validation.
7014 * Pointer to the Ethernet device structure.
7016 * The meter policy action object to validate.
7018 * Attributes of flow to determine steering domain.
7019 * @param[out] is_rss
7021 * @param[out] domain_bitmap
7023 * @param[out] is_def_policy
7024 * Is default policy or not.
7026 * Perform verbose error reporting if not NULL. Initialized in case of
7030 * 0 on success, otherwise negative errno value.
7033 mlx5_flow_validate_mtr_acts(struct rte_eth_dev *dev,
7034 const struct rte_flow_action *actions[RTE_COLORS],
7035 struct rte_flow_attr *attr,
7037 uint8_t *domain_bitmap,
7038 bool *is_def_policy,
7039 struct rte_mtr_error *error)
7041 const struct mlx5_flow_driver_ops *fops;
7043 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7044 return fops->validate_mtr_acts(dev, actions, attr,
7045 is_rss, domain_bitmap, is_def_policy, error);
7049 * Destroy the meter table set.
7052 * Pointer to Ethernet device.
7053 * @param[in] mtr_policy
7054 * Meter policy struct.
7057 mlx5_flow_destroy_mtr_acts(struct rte_eth_dev *dev,
7058 struct mlx5_flow_meter_policy *mtr_policy)
7060 const struct mlx5_flow_driver_ops *fops;
7062 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7063 fops->destroy_mtr_acts(dev, mtr_policy);
7067 * Create policy action, lock free,
7068 * (mutex should be acquired by caller).
7069 * Dispatcher for action type specific call.
7072 * Pointer to the Ethernet device structure.
7073 * @param[in] mtr_policy
7074 * Meter policy struct.
7076 * Action specification used to create meter actions.
7078 * Perform verbose error reporting if not NULL. Initialized in case of
7082 * 0 on success, otherwise negative errno value.
7085 mlx5_flow_create_mtr_acts(struct rte_eth_dev *dev,
7086 struct mlx5_flow_meter_policy *mtr_policy,
7087 const struct rte_flow_action *actions[RTE_COLORS],
7088 struct rte_mtr_error *error)
7090 const struct mlx5_flow_driver_ops *fops;
7092 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7093 return fops->create_mtr_acts(dev, mtr_policy, actions, error);
7097 * Create policy rules, lock free,
7098 * (mutex should be acquired by caller).
7099 * Dispatcher for action type specific call.
7102 * Pointer to the Ethernet device structure.
7103 * @param[in] mtr_policy
7104 * Meter policy struct.
7107 * 0 on success, -1 otherwise.
7110 mlx5_flow_create_policy_rules(struct rte_eth_dev *dev,
7111 struct mlx5_flow_meter_policy *mtr_policy)
7113 const struct mlx5_flow_driver_ops *fops;
7115 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7116 return fops->create_policy_rules(dev, mtr_policy);
7120 * Destroy policy rules, lock free,
7121 * (mutex should be acquired by caller).
7122 * Dispatcher for action type specific call.
7125 * Pointer to the Ethernet device structure.
7126 * @param[in] mtr_policy
7127 * Meter policy struct.
7130 mlx5_flow_destroy_policy_rules(struct rte_eth_dev *dev,
7131 struct mlx5_flow_meter_policy *mtr_policy)
7133 const struct mlx5_flow_driver_ops *fops;
7135 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7136 fops->destroy_policy_rules(dev, mtr_policy);
7140 * Destroy the default policy table set.
7143 * Pointer to Ethernet device.
7146 mlx5_flow_destroy_def_policy(struct rte_eth_dev *dev)
7148 const struct mlx5_flow_driver_ops *fops;
7150 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7151 fops->destroy_def_policy(dev);
7155 * Destroy the default policy table set.
7158 * Pointer to Ethernet device.
7161 * 0 on success, -1 otherwise.
7164 mlx5_flow_create_def_policy(struct rte_eth_dev *dev)
7166 const struct mlx5_flow_driver_ops *fops;
7168 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7169 return fops->create_def_policy(dev);
7173 * Create the needed meter and suffix tables.
7176 * Pointer to Ethernet device.
7179 * 0 on success, -1 otherwise.
7182 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
7183 struct mlx5_flow_meter_info *fm,
7185 uint8_t domain_bitmap)
7187 const struct mlx5_flow_driver_ops *fops;
7189 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7190 return fops->create_mtr_tbls(dev, fm, mtr_idx, domain_bitmap);
7194 * Destroy the meter table set.
7197 * Pointer to Ethernet device.
7199 * Pointer to the meter table set.
7202 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
7203 struct mlx5_flow_meter_info *fm)
7205 const struct mlx5_flow_driver_ops *fops;
7207 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7208 fops->destroy_mtr_tbls(dev, fm);
7212 * Destroy the global meter drop table.
7215 * Pointer to Ethernet device.
7218 mlx5_flow_destroy_mtr_drop_tbls(struct rte_eth_dev *dev)
7220 const struct mlx5_flow_driver_ops *fops;
7222 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7223 fops->destroy_mtr_drop_tbls(dev);
7227 * Allocate the needed aso flow meter id.
7230 * Pointer to Ethernet device.
7233 * Index to aso flow meter on success, NULL otherwise.
7236 mlx5_flow_mtr_alloc(struct rte_eth_dev *dev)
7238 const struct mlx5_flow_driver_ops *fops;
7240 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7241 return fops->create_meter(dev);
7245 * Free the aso flow meter id.
7248 * Pointer to Ethernet device.
7249 * @param[in] mtr_idx
7250 * Index to aso flow meter to be free.
7256 mlx5_flow_mtr_free(struct rte_eth_dev *dev, uint32_t mtr_idx)
7258 const struct mlx5_flow_driver_ops *fops;
7260 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7261 fops->free_meter(dev, mtr_idx);
7265 * Allocate a counter.
7268 * Pointer to Ethernet device structure.
7271 * Index to allocated counter on success, 0 otherwise.
7274 mlx5_counter_alloc(struct rte_eth_dev *dev)
7276 const struct mlx5_flow_driver_ops *fops;
7277 struct rte_flow_attr attr = { .transfer = 0 };
7279 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7280 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7281 return fops->counter_alloc(dev);
7284 "port %u counter allocate is not supported.",
7285 dev->data->port_id);
7293 * Pointer to Ethernet device structure.
7295 * Index to counter to be free.
7298 mlx5_counter_free(struct rte_eth_dev *dev, uint32_t cnt)
7300 const struct mlx5_flow_driver_ops *fops;
7301 struct rte_flow_attr attr = { .transfer = 0 };
7303 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7304 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7305 fops->counter_free(dev, cnt);
7309 "port %u counter free is not supported.",
7310 dev->data->port_id);
7314 * Query counter statistics.
7317 * Pointer to Ethernet device structure.
7319 * Index to counter to query.
7321 * Set to clear counter statistics.
7323 * The counter hits packets number to save.
7325 * The counter hits bytes number to save.
7328 * 0 on success, a negative errno value otherwise.
7331 mlx5_counter_query(struct rte_eth_dev *dev, uint32_t cnt,
7332 bool clear, uint64_t *pkts, uint64_t *bytes)
7334 const struct mlx5_flow_driver_ops *fops;
7335 struct rte_flow_attr attr = { .transfer = 0 };
7337 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7338 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7339 return fops->counter_query(dev, cnt, clear, pkts, bytes);
7342 "port %u counter query is not supported.",
7343 dev->data->port_id);
7348 * Allocate a new memory for the counter values wrapped by all the needed
7352 * Pointer to mlx5_dev_ctx_shared object.
7355 * 0 on success, a negative errno value otherwise.
7358 mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh)
7360 struct mlx5_devx_mkey_attr mkey_attr;
7361 struct mlx5_counter_stats_mem_mng *mem_mng;
7362 volatile struct flow_counter_stats *raw_data;
7363 int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES;
7364 int size = (sizeof(struct flow_counter_stats) *
7365 MLX5_COUNTERS_PER_POOL +
7366 sizeof(struct mlx5_counter_stats_raw)) * raws_n +
7367 sizeof(struct mlx5_counter_stats_mem_mng);
7368 size_t pgsize = rte_mem_page_size();
7372 if (pgsize == (size_t)-1) {
7373 DRV_LOG(ERR, "Failed to get mem page size");
7377 mem = mlx5_malloc(MLX5_MEM_ZERO, size, pgsize, SOCKET_ID_ANY);
7382 mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1;
7383 size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n;
7384 mem_mng->umem = mlx5_os_umem_reg(sh->ctx, mem, size,
7385 IBV_ACCESS_LOCAL_WRITE);
7386 if (!mem_mng->umem) {
7391 memset(&mkey_attr, 0, sizeof(mkey_attr));
7392 mkey_attr.addr = (uintptr_t)mem;
7393 mkey_attr.size = size;
7394 mkey_attr.umem_id = mlx5_os_get_umem_id(mem_mng->umem);
7395 mkey_attr.pd = sh->pdn;
7396 mkey_attr.relaxed_ordering_write = sh->cmng.relaxed_ordering_write;
7397 mkey_attr.relaxed_ordering_read = sh->cmng.relaxed_ordering_read;
7398 mem_mng->dm = mlx5_devx_cmd_mkey_create(sh->ctx, &mkey_attr);
7400 mlx5_os_umem_dereg(mem_mng->umem);
7405 mem_mng->raws = (struct mlx5_counter_stats_raw *)(mem + size);
7406 raw_data = (volatile struct flow_counter_stats *)mem;
7407 for (i = 0; i < raws_n; ++i) {
7408 mem_mng->raws[i].mem_mng = mem_mng;
7409 mem_mng->raws[i].data = raw_data + i * MLX5_COUNTERS_PER_POOL;
7411 for (i = 0; i < MLX5_MAX_PENDING_QUERIES; ++i)
7412 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws,
7413 mem_mng->raws + MLX5_CNT_CONTAINER_RESIZE + i,
7415 LIST_INSERT_HEAD(&sh->cmng.mem_mngs, mem_mng, next);
7416 sh->cmng.mem_mng = mem_mng;
7421 * Set the statistic memory to the new counter pool.
7424 * Pointer to mlx5_dev_ctx_shared object.
7426 * Pointer to the pool to set the statistic memory.
7429 * 0 on success, a negative errno value otherwise.
7432 mlx5_flow_set_counter_stat_mem(struct mlx5_dev_ctx_shared *sh,
7433 struct mlx5_flow_counter_pool *pool)
7435 struct mlx5_flow_counter_mng *cmng = &sh->cmng;
7436 /* Resize statistic memory once used out. */
7437 if (!(pool->index % MLX5_CNT_CONTAINER_RESIZE) &&
7438 mlx5_flow_create_counter_stat_mem_mng(sh)) {
7439 DRV_LOG(ERR, "Cannot resize counter stat mem.");
7442 rte_spinlock_lock(&pool->sl);
7443 pool->raw = cmng->mem_mng->raws + pool->index %
7444 MLX5_CNT_CONTAINER_RESIZE;
7445 rte_spinlock_unlock(&pool->sl);
7446 pool->raw_hw = NULL;
7450 #define MLX5_POOL_QUERY_FREQ_US 1000000
7453 * Set the periodic procedure for triggering asynchronous batch queries for all
7454 * the counter pools.
7457 * Pointer to mlx5_dev_ctx_shared object.
7460 mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh)
7462 uint32_t pools_n, us;
7464 pools_n = __atomic_load_n(&sh->cmng.n_valid, __ATOMIC_RELAXED);
7465 us = MLX5_POOL_QUERY_FREQ_US / pools_n;
7466 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
7467 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
7468 sh->cmng.query_thread_on = 0;
7469 DRV_LOG(ERR, "Cannot reinitialize query alarm");
7471 sh->cmng.query_thread_on = 1;
7476 * The periodic procedure for triggering asynchronous batch queries for all the
7477 * counter pools. This function is probably called by the host thread.
7480 * The parameter for the alarm process.
7483 mlx5_flow_query_alarm(void *arg)
7485 struct mlx5_dev_ctx_shared *sh = arg;
7487 uint16_t pool_index = sh->cmng.pool_index;
7488 struct mlx5_flow_counter_mng *cmng = &sh->cmng;
7489 struct mlx5_flow_counter_pool *pool;
7492 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
7494 rte_spinlock_lock(&cmng->pool_update_sl);
7495 pool = cmng->pools[pool_index];
7496 n_valid = cmng->n_valid;
7497 rte_spinlock_unlock(&cmng->pool_update_sl);
7498 /* Set the statistic memory to the new created pool. */
7499 if ((!pool->raw && mlx5_flow_set_counter_stat_mem(sh, pool)))
7502 /* There is a pool query in progress. */
7505 LIST_FIRST(&sh->cmng.free_stat_raws);
7507 /* No free counter statistics raw memory. */
7510 * Identify the counters released between query trigger and query
7511 * handle more efficiently. The counter released in this gap period
7512 * should wait for a new round of query as the new arrived packets
7513 * will not be taken into account.
7516 ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0,
7517 MLX5_COUNTERS_PER_POOL,
7519 pool->raw_hw->mem_mng->dm->id,
7523 (uint64_t)(uintptr_t)pool);
7525 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
7526 " %d", pool->min_dcs->id);
7527 pool->raw_hw = NULL;
7530 LIST_REMOVE(pool->raw_hw, next);
7531 sh->cmng.pending_queries++;
7533 if (pool_index >= n_valid)
7536 sh->cmng.pool_index = pool_index;
7537 mlx5_set_query_alarm(sh);
7541 * Check and callback event for new aged flow in the counter pool
7544 * Pointer to mlx5_dev_ctx_shared object.
7546 * Pointer to Current counter pool.
7549 mlx5_flow_aging_check(struct mlx5_dev_ctx_shared *sh,
7550 struct mlx5_flow_counter_pool *pool)
7552 struct mlx5_priv *priv;
7553 struct mlx5_flow_counter *cnt;
7554 struct mlx5_age_info *age_info;
7555 struct mlx5_age_param *age_param;
7556 struct mlx5_counter_stats_raw *cur = pool->raw_hw;
7557 struct mlx5_counter_stats_raw *prev = pool->raw;
7558 const uint64_t curr_time = MLX5_CURR_TIME_SEC;
7559 const uint32_t time_delta = curr_time - pool->time_of_last_age_check;
7560 uint16_t expected = AGE_CANDIDATE;
7563 pool->time_of_last_age_check = curr_time;
7564 for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) {
7565 cnt = MLX5_POOL_GET_CNT(pool, i);
7566 age_param = MLX5_CNT_TO_AGE(cnt);
7567 if (__atomic_load_n(&age_param->state,
7568 __ATOMIC_RELAXED) != AGE_CANDIDATE)
7570 if (cur->data[i].hits != prev->data[i].hits) {
7571 __atomic_store_n(&age_param->sec_since_last_hit, 0,
7575 if (__atomic_add_fetch(&age_param->sec_since_last_hit,
7577 __ATOMIC_RELAXED) <= age_param->timeout)
7580 * Hold the lock first, or if between the
7581 * state AGE_TMOUT and tailq operation the
7582 * release happened, the release procedure
7583 * may delete a non-existent tailq node.
7585 priv = rte_eth_devices[age_param->port_id].data->dev_private;
7586 age_info = GET_PORT_AGE_INFO(priv);
7587 rte_spinlock_lock(&age_info->aged_sl);
7588 if (__atomic_compare_exchange_n(&age_param->state, &expected,
7591 __ATOMIC_RELAXED)) {
7592 TAILQ_INSERT_TAIL(&age_info->aged_counters, cnt, next);
7593 MLX5_AGE_SET(age_info, MLX5_AGE_EVENT_NEW);
7595 rte_spinlock_unlock(&age_info->aged_sl);
7597 mlx5_age_event_prepare(sh);
7601 * Handler for the HW respond about ready values from an asynchronous batch
7602 * query. This function is probably called by the host thread.
7605 * The pointer to the shared device context.
7606 * @param[in] async_id
7607 * The Devx async ID.
7609 * The status of the completion.
7612 mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh,
7613 uint64_t async_id, int status)
7615 struct mlx5_flow_counter_pool *pool =
7616 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
7617 struct mlx5_counter_stats_raw *raw_to_free;
7618 uint8_t query_gen = pool->query_gen ^ 1;
7619 struct mlx5_flow_counter_mng *cmng = &sh->cmng;
7620 enum mlx5_counter_type cnt_type =
7621 pool->is_aged ? MLX5_COUNTER_TYPE_AGE :
7622 MLX5_COUNTER_TYPE_ORIGIN;
7624 if (unlikely(status)) {
7625 raw_to_free = pool->raw_hw;
7627 raw_to_free = pool->raw;
7629 mlx5_flow_aging_check(sh, pool);
7630 rte_spinlock_lock(&pool->sl);
7631 pool->raw = pool->raw_hw;
7632 rte_spinlock_unlock(&pool->sl);
7633 /* Be sure the new raw counters data is updated in memory. */
7635 if (!TAILQ_EMPTY(&pool->counters[query_gen])) {
7636 rte_spinlock_lock(&cmng->csl[cnt_type]);
7637 TAILQ_CONCAT(&cmng->counters[cnt_type],
7638 &pool->counters[query_gen], next);
7639 rte_spinlock_unlock(&cmng->csl[cnt_type]);
7642 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
7643 pool->raw_hw = NULL;
7644 sh->cmng.pending_queries--;
7648 flow_group_to_table(uint32_t port_id, uint32_t group, uint32_t *table,
7649 const struct flow_grp_info *grp_info,
7650 struct rte_flow_error *error)
7652 if (grp_info->transfer && grp_info->external &&
7653 grp_info->fdb_def_rule) {
7654 if (group == UINT32_MAX)
7655 return rte_flow_error_set
7657 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
7659 "group index not supported");
7664 DRV_LOG(DEBUG, "port %u group=%#x table=%#x", port_id, group, *table);
7669 * Translate the rte_flow group index to HW table value.
7671 * If tunnel offload is disabled, all group ids converted to flow table
7672 * id using the standard method.
7673 * If tunnel offload is enabled, group id can be converted using the
7674 * standard or tunnel conversion method. Group conversion method
7675 * selection depends on flags in `grp_info` parameter:
7676 * - Internal (grp_info.external == 0) groups conversion uses the
7678 * - Group ids in JUMP action converted with the tunnel conversion.
7679 * - Group id in rule attribute conversion depends on a rule type and
7681 * ** non zero group attributes converted with the tunnel method
7682 * ** zero group attribute in non-tunnel rule is converted using the
7683 * standard method - there's only one root table
7684 * ** zero group attribute in steer tunnel rule is converted with the
7685 * standard method - single root table
7686 * ** zero group attribute in match tunnel rule is a special OvS
7687 * case: that value is used for portability reasons. That group
7688 * id is converted with the tunnel conversion method.
7693 * PMD tunnel offload object
7695 * rte_flow group index value.
7698 * @param[in] grp_info
7699 * flags used for conversion
7701 * Pointer to error structure.
7704 * 0 on success, a negative errno value otherwise and rte_errno is set.
7707 mlx5_flow_group_to_table(struct rte_eth_dev *dev,
7708 const struct mlx5_flow_tunnel *tunnel,
7709 uint32_t group, uint32_t *table,
7710 const struct flow_grp_info *grp_info,
7711 struct rte_flow_error *error)
7714 bool standard_translation;
7716 if (!grp_info->skip_scale && grp_info->external &&
7717 group < MLX5_MAX_TABLES_EXTERNAL)
7718 group *= MLX5_FLOW_TABLE_FACTOR;
7719 if (is_tunnel_offload_active(dev)) {
7720 standard_translation = !grp_info->external ||
7721 grp_info->std_tbl_fix;
7723 standard_translation = true;
7726 "port %u group=%u transfer=%d external=%d fdb_def_rule=%d translate=%s",
7727 dev->data->port_id, group, grp_info->transfer,
7728 grp_info->external, grp_info->fdb_def_rule,
7729 standard_translation ? "STANDARD" : "TUNNEL");
7730 if (standard_translation)
7731 ret = flow_group_to_table(dev->data->port_id, group, table,
7734 ret = tunnel_flow_group_to_flow_table(dev, tunnel, group,
7741 * Discover availability of metadata reg_c's.
7743 * Iteratively use test flows to check availability.
7746 * Pointer to the Ethernet device structure.
7749 * 0 on success, a negative errno value otherwise and rte_errno is set.
7752 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
7754 struct mlx5_priv *priv = dev->data->dev_private;
7755 struct mlx5_dev_config *config = &priv->config;
7756 enum modify_reg idx;
7759 /* reg_c[0] and reg_c[1] are reserved. */
7760 config->flow_mreg_c[n++] = REG_C_0;
7761 config->flow_mreg_c[n++] = REG_C_1;
7762 /* Discover availability of other reg_c's. */
7763 for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
7764 struct rte_flow_attr attr = {
7765 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
7766 .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR,
7769 struct rte_flow_item items[] = {
7771 .type = RTE_FLOW_ITEM_TYPE_END,
7774 struct rte_flow_action actions[] = {
7776 .type = (enum rte_flow_action_type)
7777 MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
7778 .conf = &(struct mlx5_flow_action_copy_mreg){
7784 .type = RTE_FLOW_ACTION_TYPE_JUMP,
7785 .conf = &(struct rte_flow_action_jump){
7786 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
7790 .type = RTE_FLOW_ACTION_TYPE_END,
7794 struct rte_flow *flow;
7795 struct rte_flow_error error;
7797 if (!config->dv_flow_en)
7799 /* Create internal flow, validation skips copy action. */
7800 flow_idx = flow_list_create(dev, NULL, &attr, items,
7801 actions, false, &error);
7802 flow = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW],
7806 config->flow_mreg_c[n++] = idx;
7807 flow_list_destroy(dev, NULL, flow_idx);
7809 for (; n < MLX5_MREG_C_NUM; ++n)
7810 config->flow_mreg_c[n] = REG_NON;
7815 * Dump flow raw hw data to file
7818 * The pointer to Ethernet device.
7820 * A pointer to a file for output.
7822 * Perform verbose error reporting if not NULL. PMDs initialize this
7823 * structure in case of error only.
7825 * 0 on success, a nagative value otherwise.
7828 mlx5_flow_dev_dump(struct rte_eth_dev *dev, struct rte_flow *flow_idx,
7830 struct rte_flow_error *error __rte_unused)
7832 struct mlx5_priv *priv = dev->data->dev_private;
7833 struct mlx5_dev_ctx_shared *sh = priv->sh;
7834 uint32_t handle_idx;
7836 struct mlx5_flow_handle *dh;
7837 struct rte_flow *flow;
7839 if (!priv->config.dv_flow_en) {
7840 if (fputs("device dv flow disabled\n", file) <= 0)
7847 return mlx5_devx_cmd_flow_dump(sh->fdb_domain,
7849 sh->tx_domain, file);
7851 flow = mlx5_ipool_get(priv->sh->ipool
7852 [MLX5_IPOOL_RTE_FLOW], (uintptr_t)(void *)flow_idx);
7856 handle_idx = flow->dev_handles;
7857 while (handle_idx) {
7858 dh = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW],
7863 ret = mlx5_devx_cmd_flow_single_dump(dh->drv_flow,
7868 handle_idx = dh->next.next;
7874 * Get aged-out flows.
7877 * Pointer to the Ethernet device structure.
7878 * @param[in] context
7879 * The address of an array of pointers to the aged-out flows contexts.
7880 * @param[in] nb_countexts
7881 * The length of context array pointers.
7883 * Perform verbose error reporting if not NULL. Initialized in case of
7887 * how many contexts get in success, otherwise negative errno value.
7888 * if nb_contexts is 0, return the amount of all aged contexts.
7889 * if nb_contexts is not 0 , return the amount of aged flows reported
7890 * in the context array.
7893 mlx5_flow_get_aged_flows(struct rte_eth_dev *dev, void **contexts,
7894 uint32_t nb_contexts, struct rte_flow_error *error)
7896 const struct mlx5_flow_driver_ops *fops;
7897 struct rte_flow_attr attr = { .transfer = 0 };
7899 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
7900 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
7901 return fops->get_aged_flows(dev, contexts, nb_contexts,
7905 "port %u get aged flows is not supported.",
7906 dev->data->port_id);
7910 /* Wrapper for driver action_validate op callback */
7912 flow_drv_action_validate(struct rte_eth_dev *dev,
7913 const struct rte_flow_indir_action_conf *conf,
7914 const struct rte_flow_action *action,
7915 const struct mlx5_flow_driver_ops *fops,
7916 struct rte_flow_error *error)
7918 static const char err_msg[] = "indirect action validation unsupported";
7920 if (!fops->action_validate) {
7921 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
7922 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
7926 return fops->action_validate(dev, conf, action, error);
7930 * Destroys the shared action by handle.
7933 * Pointer to Ethernet device structure.
7935 * Handle for the indirect action object to be destroyed.
7937 * Perform verbose error reporting if not NULL. PMDs initialize this
7938 * structure in case of error only.
7941 * 0 on success, a negative errno value otherwise and rte_errno is set.
7943 * @note: wrapper for driver action_create op callback.
7946 mlx5_action_handle_destroy(struct rte_eth_dev *dev,
7947 struct rte_flow_action_handle *handle,
7948 struct rte_flow_error *error)
7950 static const char err_msg[] = "indirect action destruction unsupported";
7951 struct rte_flow_attr attr = { .transfer = 0 };
7952 const struct mlx5_flow_driver_ops *fops =
7953 flow_get_drv_ops(flow_get_drv_type(dev, &attr));
7955 if (!fops->action_destroy) {
7956 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
7957 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
7961 return fops->action_destroy(dev, handle, error);
7964 /* Wrapper for driver action_destroy op callback */
7966 flow_drv_action_update(struct rte_eth_dev *dev,
7967 struct rte_flow_action_handle *handle,
7969 const struct mlx5_flow_driver_ops *fops,
7970 struct rte_flow_error *error)
7972 static const char err_msg[] = "indirect action update unsupported";
7974 if (!fops->action_update) {
7975 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
7976 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
7980 return fops->action_update(dev, handle, update, error);
7983 /* Wrapper for driver action_destroy op callback */
7985 flow_drv_action_query(struct rte_eth_dev *dev,
7986 const struct rte_flow_action_handle *handle,
7988 const struct mlx5_flow_driver_ops *fops,
7989 struct rte_flow_error *error)
7991 static const char err_msg[] = "indirect action query unsupported";
7993 if (!fops->action_query) {
7994 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
7995 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
7999 return fops->action_query(dev, handle, data, error);
8003 * Create indirect action for reuse in multiple flow rules.
8006 * Pointer to Ethernet device structure.
8008 * Pointer to indirect action object configuration.
8010 * Action configuration for indirect action object creation.
8012 * Perform verbose error reporting if not NULL. PMDs initialize this
8013 * structure in case of error only.
8015 * A valid handle in case of success, NULL otherwise and rte_errno is set.
8017 static struct rte_flow_action_handle *
8018 mlx5_action_handle_create(struct rte_eth_dev *dev,
8019 const struct rte_flow_indir_action_conf *conf,
8020 const struct rte_flow_action *action,
8021 struct rte_flow_error *error)
8023 static const char err_msg[] = "indirect action creation unsupported";
8024 struct rte_flow_attr attr = { .transfer = 0 };
8025 const struct mlx5_flow_driver_ops *fops =
8026 flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8028 if (flow_drv_action_validate(dev, conf, action, fops, error))
8030 if (!fops->action_create) {
8031 DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg);
8032 rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
8036 return fops->action_create(dev, conf, action, error);
8040 * Updates inplace the indirect action configuration pointed by *handle*
8041 * with the configuration provided as *update* argument.
8042 * The update of the indirect action configuration effects all flow rules
8043 * reusing the action via handle.
8046 * Pointer to Ethernet device structure.
8048 * Handle for the indirect action to be updated.
8050 * Action specification used to modify the action pointed by handle.
8051 * *update* could be of same type with the action pointed by the *handle*
8052 * handle argument, or some other structures like a wrapper, depending on
8053 * the indirect action type.
8055 * Perform verbose error reporting if not NULL. PMDs initialize this
8056 * structure in case of error only.
8059 * 0 on success, a negative errno value otherwise and rte_errno is set.
8062 mlx5_action_handle_update(struct rte_eth_dev *dev,
8063 struct rte_flow_action_handle *handle,
8065 struct rte_flow_error *error)
8067 struct rte_flow_attr attr = { .transfer = 0 };
8068 const struct mlx5_flow_driver_ops *fops =
8069 flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8072 ret = flow_drv_action_validate(dev, NULL,
8073 (const struct rte_flow_action *)update, fops, error);
8076 return flow_drv_action_update(dev, handle, update, fops,
8081 * Query the indirect action by handle.
8083 * This function allows retrieving action-specific data such as counters.
8084 * Data is gathered by special action which may be present/referenced in
8085 * more than one flow rule definition.
8087 * see @RTE_FLOW_ACTION_TYPE_COUNT
8090 * Pointer to Ethernet device structure.
8092 * Handle for the indirect action to query.
8093 * @param[in, out] data
8094 * Pointer to storage for the associated query data type.
8096 * Perform verbose error reporting if not NULL. PMDs initialize this
8097 * structure in case of error only.
8100 * 0 on success, a negative errno value otherwise and rte_errno is set.
8103 mlx5_action_handle_query(struct rte_eth_dev *dev,
8104 const struct rte_flow_action_handle *handle,
8106 struct rte_flow_error *error)
8108 struct rte_flow_attr attr = { .transfer = 0 };
8109 const struct mlx5_flow_driver_ops *fops =
8110 flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8112 return flow_drv_action_query(dev, handle, data, fops, error);
8116 * Destroy all indirect actions (shared RSS).
8119 * Pointer to Ethernet device.
8122 * 0 on success, a negative errno value otherwise and rte_errno is set.
8125 mlx5_action_handle_flush(struct rte_eth_dev *dev)
8127 struct rte_flow_error error;
8128 struct mlx5_priv *priv = dev->data->dev_private;
8129 struct mlx5_shared_action_rss *shared_rss;
8133 ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS],
8134 priv->rss_shared_actions, idx, shared_rss, next) {
8135 ret |= mlx5_action_handle_destroy(dev,
8136 (struct rte_flow_action_handle *)(uintptr_t)idx, &error);
8141 #ifndef HAVE_MLX5DV_DR
8142 #define MLX5_DOMAIN_SYNC_FLOW ((1 << 0) | (1 << 1))
8144 #define MLX5_DOMAIN_SYNC_FLOW \
8145 (MLX5DV_DR_DOMAIN_SYNC_FLAGS_SW | MLX5DV_DR_DOMAIN_SYNC_FLAGS_HW)
8148 int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains)
8150 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
8151 const struct mlx5_flow_driver_ops *fops;
8153 struct rte_flow_attr attr = { .transfer = 0 };
8155 fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr));
8156 ret = fops->sync_domain(dev, domains, MLX5_DOMAIN_SYNC_FLOW);
8163 * tunnel offload functionalilty is defined for DV environment only
8165 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
8167 union tunnel_offload_mark {
8170 uint32_t app_reserve:8;
8171 uint32_t table_id:15;
8172 uint32_t transfer:1;
8173 uint32_t _unused_:8;
8178 mlx5_access_tunnel_offload_db
8179 (struct rte_eth_dev *dev,
8180 bool (*match)(struct rte_eth_dev *,
8181 struct mlx5_flow_tunnel *, const void *),
8182 void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
8183 void (*miss)(struct rte_eth_dev *, void *),
8184 void *ctx, bool lock_op);
8187 flow_tunnel_add_default_miss(struct rte_eth_dev *dev,
8188 struct rte_flow *flow,
8189 const struct rte_flow_attr *attr,
8190 const struct rte_flow_action *app_actions,
8192 struct tunnel_default_miss_ctx *ctx,
8193 struct rte_flow_error *error)
8195 struct mlx5_priv *priv = dev->data->dev_private;
8196 struct mlx5_flow *dev_flow;
8197 struct rte_flow_attr miss_attr = *attr;
8198 const struct mlx5_flow_tunnel *tunnel = app_actions[0].conf;
8199 const struct rte_flow_item miss_items[2] = {
8201 .type = RTE_FLOW_ITEM_TYPE_ETH,
8207 .type = RTE_FLOW_ITEM_TYPE_END,
8213 union tunnel_offload_mark mark_id;
8214 struct rte_flow_action_mark miss_mark;
8215 struct rte_flow_action miss_actions[3] = {
8216 [0] = { .type = RTE_FLOW_ACTION_TYPE_MARK, .conf = &miss_mark },
8217 [2] = { .type = RTE_FLOW_ACTION_TYPE_END, .conf = NULL }
8219 const struct rte_flow_action_jump *jump_data;
8220 uint32_t i, flow_table = 0; /* prevent compilation warning */
8221 struct flow_grp_info grp_info = {
8223 .transfer = attr->transfer,
8224 .fdb_def_rule = !!priv->fdb_def_rule,
8229 if (!attr->transfer) {
8232 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_RSS;
8233 q_size = priv->reta_idx_n * sizeof(ctx->queue[0]);
8234 ctx->queue = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, q_size,
8237 return rte_flow_error_set
8239 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
8240 NULL, "invalid default miss RSS");
8241 ctx->action_rss.func = RTE_ETH_HASH_FUNCTION_DEFAULT,
8242 ctx->action_rss.level = 0,
8243 ctx->action_rss.types = priv->rss_conf.rss_hf,
8244 ctx->action_rss.key_len = priv->rss_conf.rss_key_len,
8245 ctx->action_rss.queue_num = priv->reta_idx_n,
8246 ctx->action_rss.key = priv->rss_conf.rss_key,
8247 ctx->action_rss.queue = ctx->queue;
8248 if (!priv->reta_idx_n || !priv->rxqs_n)
8249 return rte_flow_error_set
8251 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
8252 NULL, "invalid port configuration");
8253 if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG))
8254 ctx->action_rss.types = 0;
8255 for (i = 0; i != priv->reta_idx_n; ++i)
8256 ctx->queue[i] = (*priv->reta_idx)[i];
8258 miss_actions[1].type = RTE_FLOW_ACTION_TYPE_JUMP;
8259 ctx->miss_jump.group = MLX5_TNL_MISS_FDB_JUMP_GRP;
8261 miss_actions[1].conf = (typeof(miss_actions[1].conf))ctx->raw;
8262 for (; app_actions->type != RTE_FLOW_ACTION_TYPE_JUMP; app_actions++);
8263 jump_data = app_actions->conf;
8264 miss_attr.priority = MLX5_TNL_MISS_RULE_PRIORITY;
8265 miss_attr.group = jump_data->group;
8266 ret = mlx5_flow_group_to_table(dev, tunnel, jump_data->group,
8267 &flow_table, &grp_info, error);
8269 return rte_flow_error_set(error, EINVAL,
8270 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
8271 NULL, "invalid tunnel id");
8272 mark_id.app_reserve = 0;
8273 mark_id.table_id = tunnel_flow_tbl_to_id(flow_table);
8274 mark_id.transfer = !!attr->transfer;
8275 mark_id._unused_ = 0;
8276 miss_mark.id = mark_id.val;
8277 dev_flow = flow_drv_prepare(dev, flow, &miss_attr,
8278 miss_items, miss_actions, flow_idx, error);
8281 dev_flow->flow = flow;
8282 dev_flow->external = true;
8283 dev_flow->tunnel = tunnel;
8284 /* Subflow object was created, we must include one in the list. */
8285 SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx,
8286 dev_flow->handle, next);
8288 "port %u tunnel type=%d id=%u miss rule priority=%u group=%u",
8289 dev->data->port_id, tunnel->app_tunnel.type,
8290 tunnel->tunnel_id, miss_attr.priority, miss_attr.group);
8291 ret = flow_drv_translate(dev, dev_flow, &miss_attr, miss_items,
8292 miss_actions, error);
8294 ret = flow_mreg_update_copy_table(dev, flow, miss_actions,
8300 static const struct mlx5_flow_tbl_data_entry *
8301 tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark)
8303 struct mlx5_priv *priv = dev->data->dev_private;
8304 struct mlx5_dev_ctx_shared *sh = priv->sh;
8305 struct mlx5_hlist_entry *he;
8306 union tunnel_offload_mark mbits = { .val = mark };
8307 union mlx5_flow_tbl_key table_key = {
8309 .level = tunnel_id_to_flow_tbl(mbits.table_id),
8313 .is_fdb = !!mbits.transfer,
8317 he = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64, NULL);
8319 container_of(he, struct mlx5_flow_tbl_data_entry, entry) : NULL;
8323 mlx5_flow_tunnel_grp2tbl_remove_cb(struct mlx5_hlist *list,
8324 struct mlx5_hlist_entry *entry)
8326 struct mlx5_dev_ctx_shared *sh = list->ctx;
8327 struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
8329 mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
8330 tunnel_flow_tbl_to_id(tte->flow_table));
8335 mlx5_flow_tunnel_grp2tbl_match_cb(struct mlx5_hlist *list __rte_unused,
8336 struct mlx5_hlist_entry *entry,
8337 uint64_t key, void *cb_ctx __rte_unused)
8339 union tunnel_tbl_key tbl = {
8342 struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash);
8344 return tbl.tunnel_id != tte->tunnel_id || tbl.group != tte->group;
8347 static struct mlx5_hlist_entry *
8348 mlx5_flow_tunnel_grp2tbl_create_cb(struct mlx5_hlist *list, uint64_t key,
8349 void *ctx __rte_unused)
8351 struct mlx5_dev_ctx_shared *sh = list->ctx;
8352 struct tunnel_tbl_entry *tte;
8353 union tunnel_tbl_key tbl = {
8357 tte = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO,
8362 mlx5_ipool_malloc(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
8364 if (tte->flow_table >= MLX5_MAX_TABLES) {
8365 DRV_LOG(ERR, "Tunnel TBL ID %d exceed max limit.",
8367 mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID],
8370 } else if (!tte->flow_table) {
8373 tte->flow_table = tunnel_id_to_flow_tbl(tte->flow_table);
8374 tte->tunnel_id = tbl.tunnel_id;
8375 tte->group = tbl.group;
8384 tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev,
8385 const struct mlx5_flow_tunnel *tunnel,
8386 uint32_t group, uint32_t *table,
8387 struct rte_flow_error *error)
8389 struct mlx5_hlist_entry *he;
8390 struct tunnel_tbl_entry *tte;
8391 union tunnel_tbl_key key = {
8392 .tunnel_id = tunnel ? tunnel->tunnel_id : 0,
8395 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
8396 struct mlx5_hlist *group_hash;
8398 group_hash = tunnel ? tunnel->groups : thub->groups;
8399 he = mlx5_hlist_register(group_hash, key.val, NULL);
8401 return rte_flow_error_set(error, EINVAL,
8402 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
8404 "tunnel group index not supported");
8405 tte = container_of(he, typeof(*tte), hash);
8406 *table = tte->flow_table;
8407 DRV_LOG(DEBUG, "port %u tunnel %u group=%#x table=%#x",
8408 dev->data->port_id, key.tunnel_id, group, *table);
8413 mlx5_flow_tunnel_free(struct rte_eth_dev *dev,
8414 struct mlx5_flow_tunnel *tunnel)
8416 struct mlx5_priv *priv = dev->data->dev_private;
8417 struct mlx5_indexed_pool *ipool;
8419 DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x",
8420 dev->data->port_id, tunnel->tunnel_id);
8421 LIST_REMOVE(tunnel, chain);
8422 mlx5_hlist_destroy(tunnel->groups);
8423 ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
8424 mlx5_ipool_free(ipool, tunnel->tunnel_id);
8428 mlx5_access_tunnel_offload_db
8429 (struct rte_eth_dev *dev,
8430 bool (*match)(struct rte_eth_dev *,
8431 struct mlx5_flow_tunnel *, const void *),
8432 void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *),
8433 void (*miss)(struct rte_eth_dev *, void *),
8434 void *ctx, bool lock_op)
8436 bool verdict = false;
8437 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
8438 struct mlx5_flow_tunnel *tunnel;
8440 rte_spinlock_lock(&thub->sl);
8441 LIST_FOREACH(tunnel, &thub->tunnels, chain) {
8442 verdict = match(dev, tunnel, (const void *)ctx);
8447 rte_spinlock_unlock(&thub->sl);
8449 hit(dev, tunnel, ctx);
8450 if (!verdict && miss)
8453 rte_spinlock_unlock(&thub->sl);
8458 struct tunnel_db_find_tunnel_id_ctx {
8460 struct mlx5_flow_tunnel *tunnel;
8464 find_tunnel_id_match(struct rte_eth_dev *dev,
8465 struct mlx5_flow_tunnel *tunnel, const void *x)
8467 const struct tunnel_db_find_tunnel_id_ctx *ctx = x;
8470 return tunnel->tunnel_id == ctx->tunnel_id;
8474 find_tunnel_id_hit(struct rte_eth_dev *dev,
8475 struct mlx5_flow_tunnel *tunnel, void *x)
8477 struct tunnel_db_find_tunnel_id_ctx *ctx = x;
8479 ctx->tunnel = tunnel;
8482 static struct mlx5_flow_tunnel *
8483 mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id)
8485 struct tunnel_db_find_tunnel_id_ctx ctx = {
8489 mlx5_access_tunnel_offload_db(dev, find_tunnel_id_match,
8490 find_tunnel_id_hit, NULL, &ctx, true);
8495 static struct mlx5_flow_tunnel *
8496 mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev,
8497 const struct rte_flow_tunnel *app_tunnel)
8499 struct mlx5_priv *priv = dev->data->dev_private;
8500 struct mlx5_indexed_pool *ipool;
8501 struct mlx5_flow_tunnel *tunnel;
8504 ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID];
8505 tunnel = mlx5_ipool_zmalloc(ipool, &id);
8508 if (id >= MLX5_MAX_TUNNELS) {
8509 mlx5_ipool_free(ipool, id);
8510 DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id);
8513 tunnel->groups = mlx5_hlist_create("tunnel groups", 1024, 0, 0,
8514 mlx5_flow_tunnel_grp2tbl_create_cb,
8515 mlx5_flow_tunnel_grp2tbl_match_cb,
8516 mlx5_flow_tunnel_grp2tbl_remove_cb);
8517 if (!tunnel->groups) {
8518 mlx5_ipool_free(ipool, id);
8521 tunnel->groups->ctx = priv->sh;
8522 /* initiate new PMD tunnel */
8523 memcpy(&tunnel->app_tunnel, app_tunnel, sizeof(*app_tunnel));
8524 tunnel->tunnel_id = id;
8525 tunnel->action.type = (typeof(tunnel->action.type))
8526 MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET;
8527 tunnel->action.conf = tunnel;
8528 tunnel->item.type = (typeof(tunnel->item.type))
8529 MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL;
8530 tunnel->item.spec = tunnel;
8531 tunnel->item.last = NULL;
8532 tunnel->item.mask = NULL;
8534 DRV_LOG(DEBUG, "port %u new pmd tunnel id=0x%x",
8535 dev->data->port_id, tunnel->tunnel_id);
8540 struct tunnel_db_get_tunnel_ctx {
8541 const struct rte_flow_tunnel *app_tunnel;
8542 struct mlx5_flow_tunnel *tunnel;
8545 static bool get_tunnel_match(struct rte_eth_dev *dev,
8546 struct mlx5_flow_tunnel *tunnel, const void *x)
8548 const struct tunnel_db_get_tunnel_ctx *ctx = x;
8551 return !memcmp(ctx->app_tunnel, &tunnel->app_tunnel,
8552 sizeof(*ctx->app_tunnel));
8555 static void get_tunnel_hit(struct rte_eth_dev *dev,
8556 struct mlx5_flow_tunnel *tunnel, void *x)
8558 /* called under tunnel spinlock protection */
8559 struct tunnel_db_get_tunnel_ctx *ctx = x;
8563 ctx->tunnel = tunnel;
8566 static void get_tunnel_miss(struct rte_eth_dev *dev, void *x)
8568 /* called under tunnel spinlock protection */
8569 struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev);
8570 struct tunnel_db_get_tunnel_ctx *ctx = x;
8572 rte_spinlock_unlock(&thub->sl);
8573 ctx->tunnel = mlx5_flow_tunnel_allocate(dev, ctx->app_tunnel);
8574 rte_spinlock_lock(&thub->sl);
8576 ctx->tunnel->refctn = 1;
8577 LIST_INSERT_HEAD(&thub->tunnels, ctx->tunnel, chain);
8583 mlx5_get_flow_tunnel(struct rte_eth_dev *dev,
8584 const struct rte_flow_tunnel *app_tunnel,
8585 struct mlx5_flow_tunnel **tunnel)
8587 struct tunnel_db_get_tunnel_ctx ctx = {
8588 .app_tunnel = app_tunnel,
8591 mlx5_access_tunnel_offload_db(dev, get_tunnel_match, get_tunnel_hit,
8592 get_tunnel_miss, &ctx, true);
8593 *tunnel = ctx.tunnel;
8594 return ctx.tunnel ? 0 : -ENOMEM;
8597 void mlx5_release_tunnel_hub(struct mlx5_dev_ctx_shared *sh, uint16_t port_id)
8599 struct mlx5_flow_tunnel_hub *thub = sh->tunnel_hub;
8603 if (!LIST_EMPTY(&thub->tunnels))
8604 DRV_LOG(WARNING, "port %u tunnels present", port_id);
8605 mlx5_hlist_destroy(thub->groups);
8609 int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh)
8612 struct mlx5_flow_tunnel_hub *thub;
8614 thub = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*thub),
8618 LIST_INIT(&thub->tunnels);
8619 rte_spinlock_init(&thub->sl);
8620 thub->groups = mlx5_hlist_create("flow groups",
8621 rte_align32pow2(MLX5_MAX_TABLES), 0,
8622 0, mlx5_flow_tunnel_grp2tbl_create_cb,
8623 mlx5_flow_tunnel_grp2tbl_match_cb,
8624 mlx5_flow_tunnel_grp2tbl_remove_cb);
8625 if (!thub->groups) {
8629 thub->groups->ctx = sh;
8630 sh->tunnel_hub = thub;
8636 mlx5_hlist_destroy(thub->groups);
8643 mlx5_flow_tunnel_validate(struct rte_eth_dev *dev,
8644 struct rte_flow_tunnel *tunnel,
8645 const char *err_msg)
8648 if (!is_tunnel_offload_active(dev)) {
8649 err_msg = "tunnel offload was not activated";
8651 } else if (!tunnel) {
8652 err_msg = "no application tunnel";
8656 switch (tunnel->type) {
8658 err_msg = "unsupported tunnel type";
8660 case RTE_FLOW_ITEM_TYPE_VXLAN:
8669 mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev,
8670 struct rte_flow_tunnel *app_tunnel,
8671 struct rte_flow_action **actions,
8672 uint32_t *num_of_actions,
8673 struct rte_flow_error *error)
8676 struct mlx5_flow_tunnel *tunnel;
8677 const char *err_msg = NULL;
8678 bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg);
8681 return rte_flow_error_set(error, EINVAL,
8682 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
8684 ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
8686 return rte_flow_error_set(error, ret,
8687 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
8688 "failed to initialize pmd tunnel");
8690 *actions = &tunnel->action;
8691 *num_of_actions = 1;
8696 mlx5_flow_tunnel_match(struct rte_eth_dev *dev,
8697 struct rte_flow_tunnel *app_tunnel,
8698 struct rte_flow_item **items,
8699 uint32_t *num_of_items,
8700 struct rte_flow_error *error)
8703 struct mlx5_flow_tunnel *tunnel;
8704 const char *err_msg = NULL;
8705 bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg);
8708 return rte_flow_error_set(error, EINVAL,
8709 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
8711 ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel);
8713 return rte_flow_error_set(error, ret,
8714 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
8715 "failed to initialize pmd tunnel");
8717 *items = &tunnel->item;
8722 struct tunnel_db_element_release_ctx {
8723 struct rte_flow_item *items;
8724 struct rte_flow_action *actions;
8725 uint32_t num_elements;
8726 struct rte_flow_error *error;
8731 tunnel_element_release_match(struct rte_eth_dev *dev,
8732 struct mlx5_flow_tunnel *tunnel, const void *x)
8734 const struct tunnel_db_element_release_ctx *ctx = x;
8737 if (ctx->num_elements != 1)
8739 else if (ctx->items)
8740 return ctx->items == &tunnel->item;
8741 else if (ctx->actions)
8742 return ctx->actions == &tunnel->action;
8748 tunnel_element_release_hit(struct rte_eth_dev *dev,
8749 struct mlx5_flow_tunnel *tunnel, void *x)
8751 struct tunnel_db_element_release_ctx *ctx = x;
8753 if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED))
8754 mlx5_flow_tunnel_free(dev, tunnel);
8758 tunnel_element_release_miss(struct rte_eth_dev *dev, void *x)
8760 struct tunnel_db_element_release_ctx *ctx = x;
8762 ctx->ret = rte_flow_error_set(ctx->error, EINVAL,
8763 RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
8764 "invalid argument");
8768 mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev,
8769 struct rte_flow_item *pmd_items,
8770 uint32_t num_items, struct rte_flow_error *err)
8772 struct tunnel_db_element_release_ctx ctx = {
8775 .num_elements = num_items,
8779 mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
8780 tunnel_element_release_hit,
8781 tunnel_element_release_miss, &ctx, false);
8787 mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev,
8788 struct rte_flow_action *pmd_actions,
8789 uint32_t num_actions, struct rte_flow_error *err)
8791 struct tunnel_db_element_release_ctx ctx = {
8793 .actions = pmd_actions,
8794 .num_elements = num_actions,
8798 mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match,
8799 tunnel_element_release_hit,
8800 tunnel_element_release_miss, &ctx, false);
8806 mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev,
8808 struct rte_flow_restore_info *info,
8809 struct rte_flow_error *err)
8811 uint64_t ol_flags = m->ol_flags;
8812 const struct mlx5_flow_tbl_data_entry *tble;
8813 const uint64_t mask = PKT_RX_FDIR | PKT_RX_FDIR_ID;
8815 if (!is_tunnel_offload_active(dev)) {
8820 if ((ol_flags & mask) != mask)
8822 tble = tunnel_mark_decode(dev, m->hash.fdir.hi);
8824 DRV_LOG(DEBUG, "port %u invalid miss tunnel mark %#x",
8825 dev->data->port_id, m->hash.fdir.hi);
8828 MLX5_ASSERT(tble->tunnel);
8829 memcpy(&info->tunnel, &tble->tunnel->app_tunnel, sizeof(info->tunnel));
8830 info->group_id = tble->group_id;
8831 info->flags = RTE_FLOW_RESTORE_INFO_TUNNEL |
8832 RTE_FLOW_RESTORE_INFO_GROUP_ID |
8833 RTE_FLOW_RESTORE_INFO_ENCAPSULATED;
8838 return rte_flow_error_set(err, EINVAL,
8839 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
8840 "failed to get restore info");
8843 #else /* HAVE_IBV_FLOW_DV_SUPPORT */
8845 mlx5_flow_tunnel_decap_set(__rte_unused struct rte_eth_dev *dev,
8846 __rte_unused struct rte_flow_tunnel *app_tunnel,
8847 __rte_unused struct rte_flow_action **actions,
8848 __rte_unused uint32_t *num_of_actions,
8849 __rte_unused struct rte_flow_error *error)
8855 mlx5_flow_tunnel_match(__rte_unused struct rte_eth_dev *dev,
8856 __rte_unused struct rte_flow_tunnel *app_tunnel,
8857 __rte_unused struct rte_flow_item **items,
8858 __rte_unused uint32_t *num_of_items,
8859 __rte_unused struct rte_flow_error *error)
8865 mlx5_flow_tunnel_item_release(__rte_unused struct rte_eth_dev *dev,
8866 __rte_unused struct rte_flow_item *pmd_items,
8867 __rte_unused uint32_t num_items,
8868 __rte_unused struct rte_flow_error *err)
8874 mlx5_flow_tunnel_action_release(__rte_unused struct rte_eth_dev *dev,
8875 __rte_unused struct rte_flow_action *pmd_action,
8876 __rte_unused uint32_t num_actions,
8877 __rte_unused struct rte_flow_error *err)
8883 mlx5_flow_tunnel_get_restore_info(__rte_unused struct rte_eth_dev *dev,
8884 __rte_unused struct rte_mbuf *m,
8885 __rte_unused struct rte_flow_restore_info *i,
8886 __rte_unused struct rte_flow_error *err)
8892 flow_tunnel_add_default_miss(__rte_unused struct rte_eth_dev *dev,
8893 __rte_unused struct rte_flow *flow,
8894 __rte_unused const struct rte_flow_attr *attr,
8895 __rte_unused const struct rte_flow_action *actions,
8896 __rte_unused uint32_t flow_idx,
8897 __rte_unused struct tunnel_default_miss_ctx *ctx,
8898 __rte_unused struct rte_flow_error *error)
8903 static struct mlx5_flow_tunnel *
8904 mlx5_find_tunnel_id(__rte_unused struct rte_eth_dev *dev,
8905 __rte_unused uint32_t id)
8911 mlx5_flow_tunnel_free(__rte_unused struct rte_eth_dev *dev,
8912 __rte_unused struct mlx5_flow_tunnel *tunnel)
8917 tunnel_flow_group_to_flow_table(__rte_unused struct rte_eth_dev *dev,
8918 __rte_unused const struct mlx5_flow_tunnel *t,
8919 __rte_unused uint32_t group,
8920 __rte_unused uint32_t *table,
8921 struct rte_flow_error *error)
8923 return rte_flow_error_set(error, ENOTSUP,
8924 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
8925 "tunnel offload requires DV support");
8929 mlx5_release_tunnel_hub(__rte_unused struct mlx5_dev_ctx_shared *sh,
8930 __rte_unused uint16_t port_id)
8933 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */