1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2016 6WIND S.A.
3 * Copyright 2016 Mellanox Technologies, Ltd
6 #include <netinet/in.h>
13 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
15 #pragma GCC diagnostic ignored "-Wpedantic"
17 #include <infiniband/verbs.h>
19 #pragma GCC diagnostic error "-Wpedantic"
22 #include <rte_common.h>
23 #include <rte_ether.h>
24 #include <rte_ethdev_driver.h>
26 #include <rte_flow_driver.h>
27 #include <rte_malloc.h>
30 #include <mlx5_glue.h>
31 #include <mlx5_devx_cmds.h>
34 #include "mlx5_defs.h"
36 #include "mlx5_flow.h"
37 #include "mlx5_rxtx.h"
39 /* Dev ops structure defined in mlx5.c */
40 extern const struct eth_dev_ops mlx5_dev_ops;
41 extern const struct eth_dev_ops mlx5_dev_ops_isolate;
43 /** Device flow drivers. */
44 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
45 extern const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops;
47 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
49 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
51 const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
52 [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
53 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
54 [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
56 [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
57 [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
62 MLX5_EXPANSION_ROOT_OUTER,
63 MLX5_EXPANSION_ROOT_ETH_VLAN,
64 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
65 MLX5_EXPANSION_OUTER_ETH,
66 MLX5_EXPANSION_OUTER_ETH_VLAN,
67 MLX5_EXPANSION_OUTER_VLAN,
68 MLX5_EXPANSION_OUTER_IPV4,
69 MLX5_EXPANSION_OUTER_IPV4_UDP,
70 MLX5_EXPANSION_OUTER_IPV4_TCP,
71 MLX5_EXPANSION_OUTER_IPV6,
72 MLX5_EXPANSION_OUTER_IPV6_UDP,
73 MLX5_EXPANSION_OUTER_IPV6_TCP,
75 MLX5_EXPANSION_VXLAN_GPE,
79 MLX5_EXPANSION_ETH_VLAN,
82 MLX5_EXPANSION_IPV4_UDP,
83 MLX5_EXPANSION_IPV4_TCP,
85 MLX5_EXPANSION_IPV6_UDP,
86 MLX5_EXPANSION_IPV6_TCP,
89 /** Supported expansion of items. */
90 static const struct rte_flow_expand_node mlx5_support_expansion[] = {
91 [MLX5_EXPANSION_ROOT] = {
92 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
95 .type = RTE_FLOW_ITEM_TYPE_END,
97 [MLX5_EXPANSION_ROOT_OUTER] = {
98 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
99 MLX5_EXPANSION_OUTER_IPV4,
100 MLX5_EXPANSION_OUTER_IPV6),
101 .type = RTE_FLOW_ITEM_TYPE_END,
103 [MLX5_EXPANSION_ROOT_ETH_VLAN] = {
104 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
105 .type = RTE_FLOW_ITEM_TYPE_END,
107 [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
108 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH_VLAN),
109 .type = RTE_FLOW_ITEM_TYPE_END,
111 [MLX5_EXPANSION_OUTER_ETH] = {
112 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
113 MLX5_EXPANSION_OUTER_IPV6,
114 MLX5_EXPANSION_MPLS),
115 .type = RTE_FLOW_ITEM_TYPE_ETH,
118 [MLX5_EXPANSION_OUTER_ETH_VLAN] = {
119 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
120 .type = RTE_FLOW_ITEM_TYPE_ETH,
123 [MLX5_EXPANSION_OUTER_VLAN] = {
124 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
125 MLX5_EXPANSION_OUTER_IPV6),
126 .type = RTE_FLOW_ITEM_TYPE_VLAN,
128 [MLX5_EXPANSION_OUTER_IPV4] = {
129 .next = RTE_FLOW_EXPAND_RSS_NEXT
130 (MLX5_EXPANSION_OUTER_IPV4_UDP,
131 MLX5_EXPANSION_OUTER_IPV4_TCP,
134 MLX5_EXPANSION_IPV6),
135 .type = RTE_FLOW_ITEM_TYPE_IPV4,
136 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
137 ETH_RSS_NONFRAG_IPV4_OTHER,
139 [MLX5_EXPANSION_OUTER_IPV4_UDP] = {
140 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
141 MLX5_EXPANSION_VXLAN_GPE),
142 .type = RTE_FLOW_ITEM_TYPE_UDP,
143 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
145 [MLX5_EXPANSION_OUTER_IPV4_TCP] = {
146 .type = RTE_FLOW_ITEM_TYPE_TCP,
147 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
149 [MLX5_EXPANSION_OUTER_IPV6] = {
150 .next = RTE_FLOW_EXPAND_RSS_NEXT
151 (MLX5_EXPANSION_OUTER_IPV6_UDP,
152 MLX5_EXPANSION_OUTER_IPV6_TCP,
154 MLX5_EXPANSION_IPV6),
155 .type = RTE_FLOW_ITEM_TYPE_IPV6,
156 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
157 ETH_RSS_NONFRAG_IPV6_OTHER,
159 [MLX5_EXPANSION_OUTER_IPV6_UDP] = {
160 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
161 MLX5_EXPANSION_VXLAN_GPE),
162 .type = RTE_FLOW_ITEM_TYPE_UDP,
163 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
165 [MLX5_EXPANSION_OUTER_IPV6_TCP] = {
166 .type = RTE_FLOW_ITEM_TYPE_TCP,
167 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
169 [MLX5_EXPANSION_VXLAN] = {
170 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
172 MLX5_EXPANSION_IPV6),
173 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
175 [MLX5_EXPANSION_VXLAN_GPE] = {
176 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
178 MLX5_EXPANSION_IPV6),
179 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
181 [MLX5_EXPANSION_GRE] = {
182 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4),
183 .type = RTE_FLOW_ITEM_TYPE_GRE,
185 [MLX5_EXPANSION_MPLS] = {
186 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
187 MLX5_EXPANSION_IPV6),
188 .type = RTE_FLOW_ITEM_TYPE_MPLS,
190 [MLX5_EXPANSION_ETH] = {
191 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
192 MLX5_EXPANSION_IPV6),
193 .type = RTE_FLOW_ITEM_TYPE_ETH,
195 [MLX5_EXPANSION_ETH_VLAN] = {
196 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
197 .type = RTE_FLOW_ITEM_TYPE_ETH,
199 [MLX5_EXPANSION_VLAN] = {
200 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
201 MLX5_EXPANSION_IPV6),
202 .type = RTE_FLOW_ITEM_TYPE_VLAN,
204 [MLX5_EXPANSION_IPV4] = {
205 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
206 MLX5_EXPANSION_IPV4_TCP),
207 .type = RTE_FLOW_ITEM_TYPE_IPV4,
208 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
209 ETH_RSS_NONFRAG_IPV4_OTHER,
211 [MLX5_EXPANSION_IPV4_UDP] = {
212 .type = RTE_FLOW_ITEM_TYPE_UDP,
213 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
215 [MLX5_EXPANSION_IPV4_TCP] = {
216 .type = RTE_FLOW_ITEM_TYPE_TCP,
217 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
219 [MLX5_EXPANSION_IPV6] = {
220 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
221 MLX5_EXPANSION_IPV6_TCP),
222 .type = RTE_FLOW_ITEM_TYPE_IPV6,
223 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
224 ETH_RSS_NONFRAG_IPV6_OTHER,
226 [MLX5_EXPANSION_IPV6_UDP] = {
227 .type = RTE_FLOW_ITEM_TYPE_UDP,
228 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
230 [MLX5_EXPANSION_IPV6_TCP] = {
231 .type = RTE_FLOW_ITEM_TYPE_TCP,
232 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
236 static const struct rte_flow_ops mlx5_flow_ops = {
237 .validate = mlx5_flow_validate,
238 .create = mlx5_flow_create,
239 .destroy = mlx5_flow_destroy,
240 .flush = mlx5_flow_flush,
241 .isolate = mlx5_flow_isolate,
242 .query = mlx5_flow_query,
243 .dev_dump = mlx5_flow_dev_dump,
246 /* Convert FDIR request to Generic flow. */
248 struct rte_flow_attr attr;
249 struct rte_flow_item items[4];
250 struct rte_flow_item_eth l2;
251 struct rte_flow_item_eth l2_mask;
253 struct rte_flow_item_ipv4 ipv4;
254 struct rte_flow_item_ipv6 ipv6;
257 struct rte_flow_item_ipv4 ipv4;
258 struct rte_flow_item_ipv6 ipv6;
261 struct rte_flow_item_udp udp;
262 struct rte_flow_item_tcp tcp;
265 struct rte_flow_item_udp udp;
266 struct rte_flow_item_tcp tcp;
268 struct rte_flow_action actions[2];
269 struct rte_flow_action_queue queue;
272 /* Map of Verbs to Flow priority with 8 Verbs priorities. */
273 static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
274 { 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
277 /* Map of Verbs to Flow priority with 16 Verbs priorities. */
278 static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
279 { 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
280 { 9, 10, 11 }, { 12, 13, 14 },
283 /* Tunnel information. */
284 struct mlx5_flow_tunnel_info {
285 uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
286 uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
289 static struct mlx5_flow_tunnel_info tunnels_info[] = {
291 .tunnel = MLX5_FLOW_LAYER_VXLAN,
292 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
295 .tunnel = MLX5_FLOW_LAYER_GENEVE,
296 .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP,
299 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
300 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
303 .tunnel = MLX5_FLOW_LAYER_GRE,
304 .ptype = RTE_PTYPE_TUNNEL_GRE,
307 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
308 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
311 .tunnel = MLX5_FLOW_LAYER_MPLS,
312 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
315 .tunnel = MLX5_FLOW_LAYER_NVGRE,
316 .ptype = RTE_PTYPE_TUNNEL_NVGRE,
319 .tunnel = MLX5_FLOW_LAYER_IPIP,
320 .ptype = RTE_PTYPE_TUNNEL_IP,
323 .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP,
324 .ptype = RTE_PTYPE_TUNNEL_IP,
327 .tunnel = MLX5_FLOW_LAYER_GTP,
328 .ptype = RTE_PTYPE_TUNNEL_GTPU,
333 * Translate tag ID to register.
336 * Pointer to the Ethernet device structure.
338 * The feature that request the register.
340 * The request register ID.
342 * Error description in case of any.
345 * The request register on success, a negative errno
346 * value otherwise and rte_errno is set.
349 mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
350 enum mlx5_feature_name feature,
352 struct rte_flow_error *error)
354 struct mlx5_priv *priv = dev->data->dev_private;
355 struct mlx5_dev_config *config = &priv->config;
356 enum modify_reg start_reg;
357 bool skip_mtr_reg = false;
360 case MLX5_HAIRPIN_RX:
362 case MLX5_HAIRPIN_TX:
364 case MLX5_METADATA_RX:
365 switch (config->dv_xmeta_en) {
366 case MLX5_XMETA_MODE_LEGACY:
368 case MLX5_XMETA_MODE_META16:
370 case MLX5_XMETA_MODE_META32:
374 case MLX5_METADATA_TX:
376 case MLX5_METADATA_FDB:
377 switch (config->dv_xmeta_en) {
378 case MLX5_XMETA_MODE_LEGACY:
380 case MLX5_XMETA_MODE_META16:
382 case MLX5_XMETA_MODE_META32:
387 switch (config->dv_xmeta_en) {
388 case MLX5_XMETA_MODE_LEGACY:
390 case MLX5_XMETA_MODE_META16:
392 case MLX5_XMETA_MODE_META32:
398 * If meter color and flow match share one register, flow match
399 * should use the meter color register for match.
401 if (priv->mtr_reg_share)
402 return priv->mtr_color_reg;
404 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
407 MLX5_ASSERT(priv->mtr_color_reg != REG_NONE);
408 return priv->mtr_color_reg;
411 * Metadata COPY_MARK register using is in meter suffix sub
412 * flow while with meter. It's safe to share the same register.
414 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
417 * If meter is enable, it will engage the register for color
418 * match and flow match. If meter color match is not using the
419 * REG_C_2, need to skip the REG_C_x be used by meter color
421 * If meter is disable, free to use all available registers.
423 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 :
424 (priv->mtr_reg_share ? REG_C_3 : REG_C_4);
425 skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2);
426 if (id > (REG_C_7 - start_reg))
427 return rte_flow_error_set(error, EINVAL,
428 RTE_FLOW_ERROR_TYPE_ITEM,
429 NULL, "invalid tag id");
430 if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NONE)
431 return rte_flow_error_set(error, ENOTSUP,
432 RTE_FLOW_ERROR_TYPE_ITEM,
433 NULL, "unsupported tag id");
435 * This case means meter is using the REG_C_x great than 2.
436 * Take care not to conflict with meter color REG_C_x.
437 * If the available index REG_C_y >= REG_C_x, skip the
440 if (skip_mtr_reg && config->flow_mreg_c
441 [id + start_reg - REG_C_0] >= priv->mtr_color_reg) {
442 if (config->flow_mreg_c
443 [id + 1 + start_reg - REG_C_0] != REG_NONE)
444 return config->flow_mreg_c
445 [id + 1 + start_reg - REG_C_0];
446 return rte_flow_error_set(error, ENOTSUP,
447 RTE_FLOW_ERROR_TYPE_ITEM,
448 NULL, "unsupported tag id");
450 return config->flow_mreg_c[id + start_reg - REG_C_0];
453 return rte_flow_error_set(error, EINVAL,
454 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
455 NULL, "invalid feature name");
459 * Check extensive flow metadata register support.
462 * Pointer to rte_eth_dev structure.
465 * True if device supports extensive flow metadata register, otherwise false.
468 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
470 struct mlx5_priv *priv = dev->data->dev_private;
471 struct mlx5_dev_config *config = &priv->config;
474 * Having available reg_c can be regarded inclusively as supporting
475 * extensive flow metadata register, which could mean,
476 * - metadata register copy action by modify header.
477 * - 16 modify header actions is supported.
478 * - reg_c's are preserved across different domain (FDB and NIC) on
479 * packet loopback by flow lookup miss.
481 return config->flow_mreg_c[2] != REG_NONE;
485 * Discover the maximum number of priority available.
488 * Pointer to the Ethernet device structure.
491 * number of supported flow priority on success, a negative errno
492 * value otherwise and rte_errno is set.
495 mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
497 struct mlx5_priv *priv = dev->data->dev_private;
499 struct ibv_flow_attr attr;
500 struct ibv_flow_spec_eth eth;
501 struct ibv_flow_spec_action_drop drop;
505 .port = (uint8_t)priv->ibv_port,
508 .type = IBV_FLOW_SPEC_ETH,
509 .size = sizeof(struct ibv_flow_spec_eth),
512 .size = sizeof(struct ibv_flow_spec_action_drop),
513 .type = IBV_FLOW_SPEC_ACTION_DROP,
516 struct ibv_flow *flow;
517 struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
518 uint16_t vprio[] = { 8, 16 };
526 for (i = 0; i != RTE_DIM(vprio); i++) {
527 flow_attr.attr.priority = vprio[i] - 1;
528 flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
531 claim_zero(mlx5_glue->destroy_flow(flow));
534 mlx5_hrxq_drop_release(dev);
537 priority = RTE_DIM(priority_map_3);
540 priority = RTE_DIM(priority_map_5);
545 "port %u verbs maximum priority: %d expected 8/16",
546 dev->data->port_id, priority);
549 DRV_LOG(INFO, "port %u flow maximum priority: %d",
550 dev->data->port_id, priority);
555 * Adjust flow priority based on the highest layer and the request priority.
558 * Pointer to the Ethernet device structure.
559 * @param[in] priority
560 * The rule base priority.
561 * @param[in] subpriority
562 * The priority based on the items.
567 uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
568 uint32_t subpriority)
571 struct mlx5_priv *priv = dev->data->dev_private;
573 switch (priv->config.flow_prio) {
574 case RTE_DIM(priority_map_3):
575 res = priority_map_3[priority][subpriority];
577 case RTE_DIM(priority_map_5):
578 res = priority_map_5[priority][subpriority];
585 * Verify the @p item specifications (spec, last, mask) are compatible with the
589 * Item specification.
591 * @p item->mask or flow default bit-masks.
592 * @param[in] nic_mask
593 * Bit-masks covering supported fields by the NIC to compare with user mask.
595 * Bit-masks size in bytes.
597 * Pointer to error structure.
600 * 0 on success, a negative errno value otherwise and rte_errno is set.
603 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
605 const uint8_t *nic_mask,
607 struct rte_flow_error *error)
611 MLX5_ASSERT(nic_mask);
612 for (i = 0; i < size; ++i)
613 if ((nic_mask[i] | mask[i]) != nic_mask[i])
614 return rte_flow_error_set(error, ENOTSUP,
615 RTE_FLOW_ERROR_TYPE_ITEM,
617 "mask enables non supported"
619 if (!item->spec && (item->mask || item->last))
620 return rte_flow_error_set(error, EINVAL,
621 RTE_FLOW_ERROR_TYPE_ITEM, item,
622 "mask/last without a spec is not"
624 if (item->spec && item->last) {
630 for (i = 0; i < size; ++i) {
631 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
632 last[i] = ((const uint8_t *)item->last)[i] & mask[i];
634 ret = memcmp(spec, last, size);
636 return rte_flow_error_set(error, EINVAL,
637 RTE_FLOW_ERROR_TYPE_ITEM,
639 "range is not valid");
645 * Adjust the hash fields according to the @p flow information.
647 * @param[in] dev_flow.
648 * Pointer to the mlx5_flow.
650 * 1 when the hash field is for a tunnel item.
651 * @param[in] layer_types
653 * @param[in] hash_fields
657 * The hash fields that should be used.
660 mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow,
661 int tunnel __rte_unused, uint64_t layer_types,
662 uint64_t hash_fields)
664 struct rte_flow *flow = dev_flow->flow;
665 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
666 int rss_request_inner = flow->rss.level >= 2;
668 /* Check RSS hash level for tunnel. */
669 if (tunnel && rss_request_inner)
670 hash_fields |= IBV_RX_HASH_INNER;
671 else if (tunnel || rss_request_inner)
674 /* Check if requested layer matches RSS hash fields. */
675 if (!(flow->rss.types & layer_types))
681 * Lookup and set the ptype in the data Rx part. A single Ptype can be used,
682 * if several tunnel rules are used on this queue, the tunnel ptype will be
686 * Rx queue to update.
689 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
692 uint32_t tunnel_ptype = 0;
694 /* Look up for the ptype to use. */
695 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
696 if (!rxq_ctrl->flow_tunnels_n[i])
699 tunnel_ptype = tunnels_info[i].ptype;
705 rxq_ctrl->rxq.tunnel = tunnel_ptype;
709 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
713 * Pointer to the Ethernet device structure.
714 * @param[in] dev_flow
715 * Pointer to device flow structure.
718 flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
720 struct mlx5_priv *priv = dev->data->dev_private;
721 struct rte_flow *flow = dev_flow->flow;
722 const int mark = !!(dev_flow->actions &
723 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
724 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
727 for (i = 0; i != flow->rss.queue_num; ++i) {
728 int idx = (*flow->rss.queue)[i];
729 struct mlx5_rxq_ctrl *rxq_ctrl =
730 container_of((*priv->rxqs)[idx],
731 struct mlx5_rxq_ctrl, rxq);
734 * To support metadata register copy on Tx loopback,
735 * this must be always enabled (metadata may arive
736 * from other port - not from local flows only.
738 if (priv->config.dv_flow_en &&
739 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
740 mlx5_flow_ext_mreg_supported(dev)) {
741 rxq_ctrl->rxq.mark = 1;
742 rxq_ctrl->flow_mark_n = 1;
744 rxq_ctrl->rxq.mark = 1;
745 rxq_ctrl->flow_mark_n++;
750 /* Increase the counter matching the flow. */
751 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
752 if ((tunnels_info[j].tunnel &
754 tunnels_info[j].tunnel) {
755 rxq_ctrl->flow_tunnels_n[j]++;
759 flow_rxq_tunnel_ptype_update(rxq_ctrl);
765 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
768 * Pointer to the Ethernet device structure.
770 * Pointer to flow structure.
773 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
775 struct mlx5_flow *dev_flow;
777 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
778 flow_drv_rxq_flags_set(dev, dev_flow);
782 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
783 * device flow if no other flow uses it with the same kind of request.
786 * Pointer to Ethernet device.
787 * @param[in] dev_flow
788 * Pointer to the device flow.
791 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
793 struct mlx5_priv *priv = dev->data->dev_private;
794 struct rte_flow *flow = dev_flow->flow;
795 const int mark = !!(dev_flow->actions &
796 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
797 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
800 MLX5_ASSERT(dev->data->dev_started);
801 for (i = 0; i != flow->rss.queue_num; ++i) {
802 int idx = (*flow->rss.queue)[i];
803 struct mlx5_rxq_ctrl *rxq_ctrl =
804 container_of((*priv->rxqs)[idx],
805 struct mlx5_rxq_ctrl, rxq);
807 if (priv->config.dv_flow_en &&
808 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
809 mlx5_flow_ext_mreg_supported(dev)) {
810 rxq_ctrl->rxq.mark = 1;
811 rxq_ctrl->flow_mark_n = 1;
813 rxq_ctrl->flow_mark_n--;
814 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
819 /* Decrease the counter matching the flow. */
820 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
821 if ((tunnels_info[j].tunnel &
823 tunnels_info[j].tunnel) {
824 rxq_ctrl->flow_tunnels_n[j]--;
828 flow_rxq_tunnel_ptype_update(rxq_ctrl);
834 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
835 * @p flow if no other flow uses it with the same kind of request.
838 * Pointer to Ethernet device.
840 * Pointer to the flow.
843 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
845 struct mlx5_flow *dev_flow;
847 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
848 flow_drv_rxq_flags_trim(dev, dev_flow);
852 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
855 * Pointer to Ethernet device.
858 flow_rxq_flags_clear(struct rte_eth_dev *dev)
860 struct mlx5_priv *priv = dev->data->dev_private;
863 for (i = 0; i != priv->rxqs_n; ++i) {
864 struct mlx5_rxq_ctrl *rxq_ctrl;
867 if (!(*priv->rxqs)[i])
869 rxq_ctrl = container_of((*priv->rxqs)[i],
870 struct mlx5_rxq_ctrl, rxq);
871 rxq_ctrl->flow_mark_n = 0;
872 rxq_ctrl->rxq.mark = 0;
873 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
874 rxq_ctrl->flow_tunnels_n[j] = 0;
875 rxq_ctrl->rxq.tunnel = 0;
880 * return a pointer to the desired action in the list of actions.
883 * The list of actions to search the action in.
885 * The action to find.
888 * Pointer to the action in the list, if found. NULL otherwise.
890 const struct rte_flow_action *
891 mlx5_flow_find_action(const struct rte_flow_action *actions,
892 enum rte_flow_action_type action)
896 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
897 if (actions->type == action)
903 * Validate the flag action.
905 * @param[in] action_flags
906 * Bit-fields that holds the actions detected until now.
908 * Attributes of flow that includes this action.
910 * Pointer to error structure.
913 * 0 on success, a negative errno value otherwise and rte_errno is set.
916 mlx5_flow_validate_action_flag(uint64_t action_flags,
917 const struct rte_flow_attr *attr,
918 struct rte_flow_error *error)
920 if (action_flags & MLX5_FLOW_ACTION_MARK)
921 return rte_flow_error_set(error, EINVAL,
922 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
923 "can't mark and flag in same flow");
924 if (action_flags & MLX5_FLOW_ACTION_FLAG)
925 return rte_flow_error_set(error, EINVAL,
926 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
928 " actions in same flow");
930 return rte_flow_error_set(error, ENOTSUP,
931 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
932 "flag action not supported for "
938 * Validate the mark action.
941 * Pointer to the queue action.
942 * @param[in] action_flags
943 * Bit-fields that holds the actions detected until now.
945 * Attributes of flow that includes this action.
947 * Pointer to error structure.
950 * 0 on success, a negative errno value otherwise and rte_errno is set.
953 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
954 uint64_t action_flags,
955 const struct rte_flow_attr *attr,
956 struct rte_flow_error *error)
958 const struct rte_flow_action_mark *mark = action->conf;
961 return rte_flow_error_set(error, EINVAL,
962 RTE_FLOW_ERROR_TYPE_ACTION,
964 "configuration cannot be null");
965 if (mark->id >= MLX5_FLOW_MARK_MAX)
966 return rte_flow_error_set(error, EINVAL,
967 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
969 "mark id must in 0 <= id < "
970 RTE_STR(MLX5_FLOW_MARK_MAX));
971 if (action_flags & MLX5_FLOW_ACTION_FLAG)
972 return rte_flow_error_set(error, EINVAL,
973 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
974 "can't flag and mark in same flow");
975 if (action_flags & MLX5_FLOW_ACTION_MARK)
976 return rte_flow_error_set(error, EINVAL,
977 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
978 "can't have 2 mark actions in same"
981 return rte_flow_error_set(error, ENOTSUP,
982 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
983 "mark action not supported for "
989 * Validate the drop action.
991 * @param[in] action_flags
992 * Bit-fields that holds the actions detected until now.
994 * Attributes of flow that includes this action.
996 * Pointer to error structure.
999 * 0 on success, a negative errno value otherwise and rte_errno is set.
1002 mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused,
1003 const struct rte_flow_attr *attr,
1004 struct rte_flow_error *error)
1007 return rte_flow_error_set(error, ENOTSUP,
1008 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1009 "drop action not supported for "
1015 * Validate the queue action.
1018 * Pointer to the queue action.
1019 * @param[in] action_flags
1020 * Bit-fields that holds the actions detected until now.
1022 * Pointer to the Ethernet device structure.
1024 * Attributes of flow that includes this action.
1026 * Pointer to error structure.
1029 * 0 on success, a negative errno value otherwise and rte_errno is set.
1032 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
1033 uint64_t action_flags,
1034 struct rte_eth_dev *dev,
1035 const struct rte_flow_attr *attr,
1036 struct rte_flow_error *error)
1038 struct mlx5_priv *priv = dev->data->dev_private;
1039 const struct rte_flow_action_queue *queue = action->conf;
1041 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1042 return rte_flow_error_set(error, EINVAL,
1043 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1044 "can't have 2 fate actions in"
1047 return rte_flow_error_set(error, EINVAL,
1048 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1049 NULL, "No Rx queues configured");
1050 if (queue->index >= priv->rxqs_n)
1051 return rte_flow_error_set(error, EINVAL,
1052 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1054 "queue index out of range");
1055 if (!(*priv->rxqs)[queue->index])
1056 return rte_flow_error_set(error, EINVAL,
1057 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1059 "queue is not configured");
1061 return rte_flow_error_set(error, ENOTSUP,
1062 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1063 "queue action not supported for "
1069 * Validate the rss action.
1072 * Pointer to the queue action.
1073 * @param[in] action_flags
1074 * Bit-fields that holds the actions detected until now.
1076 * Pointer to the Ethernet device structure.
1078 * Attributes of flow that includes this action.
1079 * @param[in] item_flags
1080 * Items that were detected.
1082 * Pointer to error structure.
1085 * 0 on success, a negative errno value otherwise and rte_errno is set.
1088 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
1089 uint64_t action_flags,
1090 struct rte_eth_dev *dev,
1091 const struct rte_flow_attr *attr,
1092 uint64_t item_flags,
1093 struct rte_flow_error *error)
1095 struct mlx5_priv *priv = dev->data->dev_private;
1096 const struct rte_flow_action_rss *rss = action->conf;
1097 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1100 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1101 return rte_flow_error_set(error, EINVAL,
1102 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1103 "can't have 2 fate actions"
1105 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1106 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
1107 return rte_flow_error_set(error, ENOTSUP,
1108 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1110 "RSS hash function not supported");
1111 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1116 return rte_flow_error_set(error, ENOTSUP,
1117 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1119 "tunnel RSS is not supported");
1120 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
1121 if (rss->key_len == 0 && rss->key != NULL)
1122 return rte_flow_error_set(error, ENOTSUP,
1123 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1125 "RSS hash key length 0");
1126 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
1127 return rte_flow_error_set(error, ENOTSUP,
1128 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1130 "RSS hash key too small");
1131 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
1132 return rte_flow_error_set(error, ENOTSUP,
1133 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1135 "RSS hash key too large");
1136 if (rss->queue_num > priv->config.ind_table_max_size)
1137 return rte_flow_error_set(error, ENOTSUP,
1138 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1140 "number of queues too large");
1141 if (rss->types & MLX5_RSS_HF_MASK)
1142 return rte_flow_error_set(error, ENOTSUP,
1143 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1145 "some RSS protocols are not"
1147 if ((rss->types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) &&
1148 !(rss->types & ETH_RSS_IP))
1149 return rte_flow_error_set(error, EINVAL,
1150 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1151 "L3 partial RSS requested but L3 RSS"
1152 " type not specified");
1153 if ((rss->types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) &&
1154 !(rss->types & (ETH_RSS_UDP | ETH_RSS_TCP)))
1155 return rte_flow_error_set(error, EINVAL,
1156 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1157 "L4 partial RSS requested but L4 RSS"
1158 " type not specified");
1160 return rte_flow_error_set(error, EINVAL,
1161 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1162 NULL, "No Rx queues configured");
1163 if (!rss->queue_num)
1164 return rte_flow_error_set(error, EINVAL,
1165 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1166 NULL, "No queues configured");
1167 for (i = 0; i != rss->queue_num; ++i) {
1168 if (rss->queue[i] >= priv->rxqs_n)
1169 return rte_flow_error_set
1171 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1172 &rss->queue[i], "queue index out of range");
1173 if (!(*priv->rxqs)[rss->queue[i]])
1174 return rte_flow_error_set
1175 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1176 &rss->queue[i], "queue is not configured");
1179 return rte_flow_error_set(error, ENOTSUP,
1180 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1181 "rss action not supported for "
1183 if (rss->level > 1 && !tunnel)
1184 return rte_flow_error_set(error, EINVAL,
1185 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1186 "inner RSS is not supported for "
1187 "non-tunnel flows");
1192 * Validate the count action.
1195 * Pointer to the Ethernet device structure.
1197 * Attributes of flow that includes this action.
1199 * Pointer to error structure.
1202 * 0 on success, a negative errno value otherwise and rte_errno is set.
1205 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
1206 const struct rte_flow_attr *attr,
1207 struct rte_flow_error *error)
1210 return rte_flow_error_set(error, ENOTSUP,
1211 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1212 "count action not supported for "
1218 * Verify the @p attributes will be correctly understood by the NIC and store
1219 * them in the @p flow if everything is correct.
1222 * Pointer to the Ethernet device structure.
1223 * @param[in] attributes
1224 * Pointer to flow attributes
1226 * Pointer to error structure.
1229 * 0 on success, a negative errno value otherwise and rte_errno is set.
1232 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1233 const struct rte_flow_attr *attributes,
1234 struct rte_flow_error *error)
1236 struct mlx5_priv *priv = dev->data->dev_private;
1237 uint32_t priority_max = priv->config.flow_prio - 1;
1239 if (attributes->group)
1240 return rte_flow_error_set(error, ENOTSUP,
1241 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1242 NULL, "groups is not supported");
1243 if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
1244 attributes->priority >= priority_max)
1245 return rte_flow_error_set(error, ENOTSUP,
1246 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1247 NULL, "priority out of range");
1248 if (attributes->egress)
1249 return rte_flow_error_set(error, ENOTSUP,
1250 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1251 "egress is not supported");
1252 if (attributes->transfer && !priv->config.dv_esw_en)
1253 return rte_flow_error_set(error, ENOTSUP,
1254 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1255 NULL, "transfer is not supported");
1256 if (!attributes->ingress)
1257 return rte_flow_error_set(error, EINVAL,
1258 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1260 "ingress attribute is mandatory");
1265 * Validate ICMP6 item.
1268 * Item specification.
1269 * @param[in] item_flags
1270 * Bit-fields that holds the items detected until now.
1272 * Pointer to error structure.
1275 * 0 on success, a negative errno value otherwise and rte_errno is set.
1278 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
1279 uint64_t item_flags,
1280 uint8_t target_protocol,
1281 struct rte_flow_error *error)
1283 const struct rte_flow_item_icmp6 *mask = item->mask;
1284 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1285 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1286 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1287 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1288 MLX5_FLOW_LAYER_OUTER_L4;
1291 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
1292 return rte_flow_error_set(error, EINVAL,
1293 RTE_FLOW_ERROR_TYPE_ITEM, item,
1294 "protocol filtering not compatible"
1295 " with ICMP6 layer");
1296 if (!(item_flags & l3m))
1297 return rte_flow_error_set(error, EINVAL,
1298 RTE_FLOW_ERROR_TYPE_ITEM, item,
1299 "IPv6 is mandatory to filter on"
1301 if (item_flags & l4m)
1302 return rte_flow_error_set(error, EINVAL,
1303 RTE_FLOW_ERROR_TYPE_ITEM, item,
1304 "multiple L4 layers not supported");
1306 mask = &rte_flow_item_icmp6_mask;
1307 ret = mlx5_flow_item_acceptable
1308 (item, (const uint8_t *)mask,
1309 (const uint8_t *)&rte_flow_item_icmp6_mask,
1310 sizeof(struct rte_flow_item_icmp6), error);
1317 * Validate ICMP item.
1320 * Item specification.
1321 * @param[in] item_flags
1322 * Bit-fields that holds the items detected until now.
1324 * Pointer to error structure.
1327 * 0 on success, a negative errno value otherwise and rte_errno is set.
1330 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
1331 uint64_t item_flags,
1332 uint8_t target_protocol,
1333 struct rte_flow_error *error)
1335 const struct rte_flow_item_icmp *mask = item->mask;
1336 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1337 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1338 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1339 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1340 MLX5_FLOW_LAYER_OUTER_L4;
1343 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
1344 return rte_flow_error_set(error, EINVAL,
1345 RTE_FLOW_ERROR_TYPE_ITEM, item,
1346 "protocol filtering not compatible"
1347 " with ICMP layer");
1348 if (!(item_flags & l3m))
1349 return rte_flow_error_set(error, EINVAL,
1350 RTE_FLOW_ERROR_TYPE_ITEM, item,
1351 "IPv4 is mandatory to filter"
1353 if (item_flags & l4m)
1354 return rte_flow_error_set(error, EINVAL,
1355 RTE_FLOW_ERROR_TYPE_ITEM, item,
1356 "multiple L4 layers not supported");
1358 mask = &rte_flow_item_icmp_mask;
1359 ret = mlx5_flow_item_acceptable
1360 (item, (const uint8_t *)mask,
1361 (const uint8_t *)&rte_flow_item_icmp_mask,
1362 sizeof(struct rte_flow_item_icmp), error);
1369 * Validate Ethernet item.
1372 * Item specification.
1373 * @param[in] item_flags
1374 * Bit-fields that holds the items detected until now.
1376 * Pointer to error structure.
1379 * 0 on success, a negative errno value otherwise and rte_errno is set.
1382 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1383 uint64_t item_flags,
1384 struct rte_flow_error *error)
1386 const struct rte_flow_item_eth *mask = item->mask;
1387 const struct rte_flow_item_eth nic_mask = {
1388 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1389 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1390 .type = RTE_BE16(0xffff),
1393 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1394 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1395 MLX5_FLOW_LAYER_OUTER_L2;
1397 if (item_flags & ethm)
1398 return rte_flow_error_set(error, ENOTSUP,
1399 RTE_FLOW_ERROR_TYPE_ITEM, item,
1400 "multiple L2 layers not supported");
1401 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
1402 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
1403 return rte_flow_error_set(error, EINVAL,
1404 RTE_FLOW_ERROR_TYPE_ITEM, item,
1405 "L2 layer should not follow "
1407 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
1408 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
1409 return rte_flow_error_set(error, EINVAL,
1410 RTE_FLOW_ERROR_TYPE_ITEM, item,
1411 "L2 layer should not follow VLAN");
1413 mask = &rte_flow_item_eth_mask;
1414 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1415 (const uint8_t *)&nic_mask,
1416 sizeof(struct rte_flow_item_eth),
1422 * Validate VLAN item.
1425 * Item specification.
1426 * @param[in] item_flags
1427 * Bit-fields that holds the items detected until now.
1429 * Ethernet device flow is being created on.
1431 * Pointer to error structure.
1434 * 0 on success, a negative errno value otherwise and rte_errno is set.
1437 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1438 uint64_t item_flags,
1439 struct rte_eth_dev *dev,
1440 struct rte_flow_error *error)
1442 const struct rte_flow_item_vlan *spec = item->spec;
1443 const struct rte_flow_item_vlan *mask = item->mask;
1444 const struct rte_flow_item_vlan nic_mask = {
1445 .tci = RTE_BE16(UINT16_MAX),
1446 .inner_type = RTE_BE16(UINT16_MAX),
1448 uint16_t vlan_tag = 0;
1449 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1451 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1452 MLX5_FLOW_LAYER_INNER_L4) :
1453 (MLX5_FLOW_LAYER_OUTER_L3 |
1454 MLX5_FLOW_LAYER_OUTER_L4);
1455 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1456 MLX5_FLOW_LAYER_OUTER_VLAN;
1458 if (item_flags & vlanm)
1459 return rte_flow_error_set(error, EINVAL,
1460 RTE_FLOW_ERROR_TYPE_ITEM, item,
1461 "multiple VLAN layers not supported");
1462 else if ((item_flags & l34m) != 0)
1463 return rte_flow_error_set(error, EINVAL,
1464 RTE_FLOW_ERROR_TYPE_ITEM, item,
1465 "VLAN cannot follow L3/L4 layer");
1467 mask = &rte_flow_item_vlan_mask;
1468 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1469 (const uint8_t *)&nic_mask,
1470 sizeof(struct rte_flow_item_vlan),
1474 if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
1475 struct mlx5_priv *priv = dev->data->dev_private;
1477 if (priv->vmwa_context) {
1479 * Non-NULL context means we have a virtual machine
1480 * and SR-IOV enabled, we have to create VLAN interface
1481 * to make hypervisor to setup E-Switch vport
1482 * context correctly. We avoid creating the multiple
1483 * VLAN interfaces, so we cannot support VLAN tag mask.
1485 return rte_flow_error_set(error, EINVAL,
1486 RTE_FLOW_ERROR_TYPE_ITEM,
1488 "VLAN tag mask is not"
1489 " supported in virtual"
1494 vlan_tag = spec->tci;
1495 vlan_tag &= mask->tci;
1498 * From verbs perspective an empty VLAN is equivalent
1499 * to a packet without VLAN layer.
1502 return rte_flow_error_set(error, EINVAL,
1503 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1505 "VLAN cannot be empty");
1510 * Validate IPV4 item.
1513 * Item specification.
1514 * @param[in] item_flags
1515 * Bit-fields that holds the items detected until now.
1516 * @param[in] acc_mask
1517 * Acceptable mask, if NULL default internal default mask
1518 * will be used to check whether item fields are supported.
1520 * Pointer to error structure.
1523 * 0 on success, a negative errno value otherwise and rte_errno is set.
1526 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
1527 uint64_t item_flags,
1529 uint16_t ether_type,
1530 const struct rte_flow_item_ipv4 *acc_mask,
1531 struct rte_flow_error *error)
1533 const struct rte_flow_item_ipv4 *mask = item->mask;
1534 const struct rte_flow_item_ipv4 *spec = item->spec;
1535 const struct rte_flow_item_ipv4 nic_mask = {
1537 .src_addr = RTE_BE32(0xffffffff),
1538 .dst_addr = RTE_BE32(0xffffffff),
1539 .type_of_service = 0xff,
1540 .next_proto_id = 0xff,
1543 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1544 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1545 MLX5_FLOW_LAYER_OUTER_L3;
1546 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1547 MLX5_FLOW_LAYER_OUTER_L4;
1549 uint8_t next_proto = 0xFF;
1550 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1551 MLX5_FLOW_LAYER_OUTER_VLAN |
1552 MLX5_FLOW_LAYER_INNER_VLAN);
1554 if ((last_item & l2_vlan) && ether_type &&
1555 ether_type != RTE_ETHER_TYPE_IPV4)
1556 return rte_flow_error_set(error, EINVAL,
1557 RTE_FLOW_ERROR_TYPE_ITEM, item,
1558 "IPv4 cannot follow L2/VLAN layer "
1559 "which ether type is not IPv4");
1560 if (item_flags & MLX5_FLOW_LAYER_IPIP) {
1562 next_proto = mask->hdr.next_proto_id &
1563 spec->hdr.next_proto_id;
1564 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1565 return rte_flow_error_set(error, EINVAL,
1566 RTE_FLOW_ERROR_TYPE_ITEM,
1571 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
1572 return rte_flow_error_set(error, EINVAL,
1573 RTE_FLOW_ERROR_TYPE_ITEM, item,
1574 "wrong tunnel type - IPv6 specified "
1575 "but IPv4 item provided");
1576 if (item_flags & l3m)
1577 return rte_flow_error_set(error, ENOTSUP,
1578 RTE_FLOW_ERROR_TYPE_ITEM, item,
1579 "multiple L3 layers not supported");
1580 else if (item_flags & l4m)
1581 return rte_flow_error_set(error, EINVAL,
1582 RTE_FLOW_ERROR_TYPE_ITEM, item,
1583 "L3 cannot follow an L4 layer.");
1584 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1585 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1586 return rte_flow_error_set(error, EINVAL,
1587 RTE_FLOW_ERROR_TYPE_ITEM, item,
1588 "L3 cannot follow an NVGRE layer.");
1590 mask = &rte_flow_item_ipv4_mask;
1591 else if (mask->hdr.next_proto_id != 0 &&
1592 mask->hdr.next_proto_id != 0xff)
1593 return rte_flow_error_set(error, EINVAL,
1594 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1595 "partial mask is not supported"
1597 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1598 acc_mask ? (const uint8_t *)acc_mask
1599 : (const uint8_t *)&nic_mask,
1600 sizeof(struct rte_flow_item_ipv4),
1608 * Validate IPV6 item.
1611 * Item specification.
1612 * @param[in] item_flags
1613 * Bit-fields that holds the items detected until now.
1614 * @param[in] acc_mask
1615 * Acceptable mask, if NULL default internal default mask
1616 * will be used to check whether item fields are supported.
1618 * Pointer to error structure.
1621 * 0 on success, a negative errno value otherwise and rte_errno is set.
1624 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
1625 uint64_t item_flags,
1627 uint16_t ether_type,
1628 const struct rte_flow_item_ipv6 *acc_mask,
1629 struct rte_flow_error *error)
1631 const struct rte_flow_item_ipv6 *mask = item->mask;
1632 const struct rte_flow_item_ipv6 *spec = item->spec;
1633 const struct rte_flow_item_ipv6 nic_mask = {
1636 "\xff\xff\xff\xff\xff\xff\xff\xff"
1637 "\xff\xff\xff\xff\xff\xff\xff\xff",
1639 "\xff\xff\xff\xff\xff\xff\xff\xff"
1640 "\xff\xff\xff\xff\xff\xff\xff\xff",
1641 .vtc_flow = RTE_BE32(0xffffffff),
1645 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1646 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1647 MLX5_FLOW_LAYER_OUTER_L3;
1648 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1649 MLX5_FLOW_LAYER_OUTER_L4;
1651 uint8_t next_proto = 0xFF;
1652 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1653 MLX5_FLOW_LAYER_OUTER_VLAN |
1654 MLX5_FLOW_LAYER_INNER_VLAN);
1656 if ((last_item & l2_vlan) && ether_type &&
1657 ether_type != RTE_ETHER_TYPE_IPV6)
1658 return rte_flow_error_set(error, EINVAL,
1659 RTE_FLOW_ERROR_TYPE_ITEM, item,
1660 "IPv6 cannot follow L2/VLAN layer "
1661 "which ether type is not IPv6");
1662 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
1664 next_proto = mask->hdr.proto & spec->hdr.proto;
1665 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1666 return rte_flow_error_set(error, EINVAL,
1667 RTE_FLOW_ERROR_TYPE_ITEM,
1672 if (item_flags & MLX5_FLOW_LAYER_IPIP)
1673 return rte_flow_error_set(error, EINVAL,
1674 RTE_FLOW_ERROR_TYPE_ITEM, item,
1675 "wrong tunnel type - IPv4 specified "
1676 "but IPv6 item provided");
1677 if (item_flags & l3m)
1678 return rte_flow_error_set(error, ENOTSUP,
1679 RTE_FLOW_ERROR_TYPE_ITEM, item,
1680 "multiple L3 layers not supported");
1681 else if (item_flags & l4m)
1682 return rte_flow_error_set(error, EINVAL,
1683 RTE_FLOW_ERROR_TYPE_ITEM, item,
1684 "L3 cannot follow an L4 layer.");
1685 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1686 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1687 return rte_flow_error_set(error, EINVAL,
1688 RTE_FLOW_ERROR_TYPE_ITEM, item,
1689 "L3 cannot follow an NVGRE layer.");
1691 mask = &rte_flow_item_ipv6_mask;
1692 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1693 acc_mask ? (const uint8_t *)acc_mask
1694 : (const uint8_t *)&nic_mask,
1695 sizeof(struct rte_flow_item_ipv6),
1703 * Validate UDP item.
1706 * Item specification.
1707 * @param[in] item_flags
1708 * Bit-fields that holds the items detected until now.
1709 * @param[in] target_protocol
1710 * The next protocol in the previous item.
1711 * @param[in] flow_mask
1712 * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
1714 * Pointer to error structure.
1717 * 0 on success, a negative errno value otherwise and rte_errno is set.
1720 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
1721 uint64_t item_flags,
1722 uint8_t target_protocol,
1723 struct rte_flow_error *error)
1725 const struct rte_flow_item_udp *mask = item->mask;
1726 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1727 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1728 MLX5_FLOW_LAYER_OUTER_L3;
1729 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1730 MLX5_FLOW_LAYER_OUTER_L4;
1733 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
1734 return rte_flow_error_set(error, EINVAL,
1735 RTE_FLOW_ERROR_TYPE_ITEM, item,
1736 "protocol filtering not compatible"
1738 if (!(item_flags & l3m))
1739 return rte_flow_error_set(error, EINVAL,
1740 RTE_FLOW_ERROR_TYPE_ITEM, item,
1741 "L3 is mandatory to filter on L4");
1742 if (item_flags & l4m)
1743 return rte_flow_error_set(error, EINVAL,
1744 RTE_FLOW_ERROR_TYPE_ITEM, item,
1745 "multiple L4 layers not supported");
1747 mask = &rte_flow_item_udp_mask;
1748 ret = mlx5_flow_item_acceptable
1749 (item, (const uint8_t *)mask,
1750 (const uint8_t *)&rte_flow_item_udp_mask,
1751 sizeof(struct rte_flow_item_udp), error);
1758 * Validate TCP item.
1761 * Item specification.
1762 * @param[in] item_flags
1763 * Bit-fields that holds the items detected until now.
1764 * @param[in] target_protocol
1765 * The next protocol in the previous item.
1767 * Pointer to error structure.
1770 * 0 on success, a negative errno value otherwise and rte_errno is set.
1773 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
1774 uint64_t item_flags,
1775 uint8_t target_protocol,
1776 const struct rte_flow_item_tcp *flow_mask,
1777 struct rte_flow_error *error)
1779 const struct rte_flow_item_tcp *mask = item->mask;
1780 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1781 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1782 MLX5_FLOW_LAYER_OUTER_L3;
1783 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1784 MLX5_FLOW_LAYER_OUTER_L4;
1787 MLX5_ASSERT(flow_mask);
1788 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
1789 return rte_flow_error_set(error, EINVAL,
1790 RTE_FLOW_ERROR_TYPE_ITEM, item,
1791 "protocol filtering not compatible"
1793 if (!(item_flags & l3m))
1794 return rte_flow_error_set(error, EINVAL,
1795 RTE_FLOW_ERROR_TYPE_ITEM, item,
1796 "L3 is mandatory to filter on L4");
1797 if (item_flags & l4m)
1798 return rte_flow_error_set(error, EINVAL,
1799 RTE_FLOW_ERROR_TYPE_ITEM, item,
1800 "multiple L4 layers not supported");
1802 mask = &rte_flow_item_tcp_mask;
1803 ret = mlx5_flow_item_acceptable
1804 (item, (const uint8_t *)mask,
1805 (const uint8_t *)flow_mask,
1806 sizeof(struct rte_flow_item_tcp), error);
1813 * Validate VXLAN item.
1816 * Item specification.
1817 * @param[in] item_flags
1818 * Bit-fields that holds the items detected until now.
1819 * @param[in] target_protocol
1820 * The next protocol in the previous item.
1822 * Pointer to error structure.
1825 * 0 on success, a negative errno value otherwise and rte_errno is set.
1828 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
1829 uint64_t item_flags,
1830 struct rte_flow_error *error)
1832 const struct rte_flow_item_vxlan *spec = item->spec;
1833 const struct rte_flow_item_vxlan *mask = item->mask;
1838 } id = { .vlan_id = 0, };
1841 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1842 return rte_flow_error_set(error, ENOTSUP,
1843 RTE_FLOW_ERROR_TYPE_ITEM, item,
1844 "multiple tunnel layers not"
1847 * Verify only UDPv4 is present as defined in
1848 * https://tools.ietf.org/html/rfc7348
1850 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1851 return rte_flow_error_set(error, EINVAL,
1852 RTE_FLOW_ERROR_TYPE_ITEM, item,
1853 "no outer UDP layer found");
1855 mask = &rte_flow_item_vxlan_mask;
1856 ret = mlx5_flow_item_acceptable
1857 (item, (const uint8_t *)mask,
1858 (const uint8_t *)&rte_flow_item_vxlan_mask,
1859 sizeof(struct rte_flow_item_vxlan),
1864 memcpy(&id.vni[1], spec->vni, 3);
1865 memcpy(&id.vni[1], mask->vni, 3);
1867 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1868 return rte_flow_error_set(error, ENOTSUP,
1869 RTE_FLOW_ERROR_TYPE_ITEM, item,
1870 "VXLAN tunnel must be fully defined");
1875 * Validate VXLAN_GPE item.
1878 * Item specification.
1879 * @param[in] item_flags
1880 * Bit-fields that holds the items detected until now.
1882 * Pointer to the private data structure.
1883 * @param[in] target_protocol
1884 * The next protocol in the previous item.
1886 * Pointer to error structure.
1889 * 0 on success, a negative errno value otherwise and rte_errno is set.
1892 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1893 uint64_t item_flags,
1894 struct rte_eth_dev *dev,
1895 struct rte_flow_error *error)
1897 struct mlx5_priv *priv = dev->data->dev_private;
1898 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1899 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1904 } id = { .vlan_id = 0, };
1906 if (!priv->config.l3_vxlan_en)
1907 return rte_flow_error_set(error, ENOTSUP,
1908 RTE_FLOW_ERROR_TYPE_ITEM, item,
1909 "L3 VXLAN is not enabled by device"
1910 " parameter and/or not configured in"
1912 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1913 return rte_flow_error_set(error, ENOTSUP,
1914 RTE_FLOW_ERROR_TYPE_ITEM, item,
1915 "multiple tunnel layers not"
1918 * Verify only UDPv4 is present as defined in
1919 * https://tools.ietf.org/html/rfc7348
1921 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1922 return rte_flow_error_set(error, EINVAL,
1923 RTE_FLOW_ERROR_TYPE_ITEM, item,
1924 "no outer UDP layer found");
1926 mask = &rte_flow_item_vxlan_gpe_mask;
1927 ret = mlx5_flow_item_acceptable
1928 (item, (const uint8_t *)mask,
1929 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1930 sizeof(struct rte_flow_item_vxlan_gpe),
1936 return rte_flow_error_set(error, ENOTSUP,
1937 RTE_FLOW_ERROR_TYPE_ITEM,
1939 "VxLAN-GPE protocol"
1941 memcpy(&id.vni[1], spec->vni, 3);
1942 memcpy(&id.vni[1], mask->vni, 3);
1944 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1945 return rte_flow_error_set(error, ENOTSUP,
1946 RTE_FLOW_ERROR_TYPE_ITEM, item,
1947 "VXLAN-GPE tunnel must be fully"
1952 * Validate GRE Key item.
1955 * Item specification.
1956 * @param[in] item_flags
1957 * Bit flags to mark detected items.
1958 * @param[in] gre_item
1959 * Pointer to gre_item
1961 * Pointer to error structure.
1964 * 0 on success, a negative errno value otherwise and rte_errno is set.
1967 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
1968 uint64_t item_flags,
1969 const struct rte_flow_item *gre_item,
1970 struct rte_flow_error *error)
1972 const rte_be32_t *mask = item->mask;
1974 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
1975 const struct rte_flow_item_gre *gre_spec;
1976 const struct rte_flow_item_gre *gre_mask;
1978 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
1979 return rte_flow_error_set(error, ENOTSUP,
1980 RTE_FLOW_ERROR_TYPE_ITEM, item,
1981 "Multiple GRE key not support");
1982 if (!(item_flags & MLX5_FLOW_LAYER_GRE))
1983 return rte_flow_error_set(error, ENOTSUP,
1984 RTE_FLOW_ERROR_TYPE_ITEM, item,
1985 "No preceding GRE header");
1986 if (item_flags & MLX5_FLOW_LAYER_INNER)
1987 return rte_flow_error_set(error, ENOTSUP,
1988 RTE_FLOW_ERROR_TYPE_ITEM, item,
1989 "GRE key following a wrong item");
1990 gre_mask = gre_item->mask;
1992 gre_mask = &rte_flow_item_gre_mask;
1993 gre_spec = gre_item->spec;
1994 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
1995 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
1996 return rte_flow_error_set(error, EINVAL,
1997 RTE_FLOW_ERROR_TYPE_ITEM, item,
1998 "Key bit must be on");
2001 mask = &gre_key_default_mask;
2002 ret = mlx5_flow_item_acceptable
2003 (item, (const uint8_t *)mask,
2004 (const uint8_t *)&gre_key_default_mask,
2005 sizeof(rte_be32_t), error);
2010 * Validate GRE item.
2013 * Item specification.
2014 * @param[in] item_flags
2015 * Bit flags to mark detected items.
2016 * @param[in] target_protocol
2017 * The next protocol in the previous item.
2019 * Pointer to error structure.
2022 * 0 on success, a negative errno value otherwise and rte_errno is set.
2025 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2026 uint64_t item_flags,
2027 uint8_t target_protocol,
2028 struct rte_flow_error *error)
2030 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2031 const struct rte_flow_item_gre *mask = item->mask;
2033 const struct rte_flow_item_gre nic_mask = {
2034 .c_rsvd0_ver = RTE_BE16(0xB000),
2035 .protocol = RTE_BE16(UINT16_MAX),
2038 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2039 return rte_flow_error_set(error, EINVAL,
2040 RTE_FLOW_ERROR_TYPE_ITEM, item,
2041 "protocol filtering not compatible"
2042 " with this GRE layer");
2043 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2044 return rte_flow_error_set(error, ENOTSUP,
2045 RTE_FLOW_ERROR_TYPE_ITEM, item,
2046 "multiple tunnel layers not"
2048 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2049 return rte_flow_error_set(error, ENOTSUP,
2050 RTE_FLOW_ERROR_TYPE_ITEM, item,
2051 "L3 Layer is missing");
2053 mask = &rte_flow_item_gre_mask;
2054 ret = mlx5_flow_item_acceptable
2055 (item, (const uint8_t *)mask,
2056 (const uint8_t *)&nic_mask,
2057 sizeof(struct rte_flow_item_gre), error);
2060 #ifndef HAVE_MLX5DV_DR
2061 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2062 if (spec && (spec->protocol & mask->protocol))
2063 return rte_flow_error_set(error, ENOTSUP,
2064 RTE_FLOW_ERROR_TYPE_ITEM, item,
2065 "without MPLS support the"
2066 " specification cannot be used for"
2074 * Validate Geneve item.
2077 * Item specification.
2078 * @param[in] itemFlags
2079 * Bit-fields that holds the items detected until now.
2081 * Pointer to the private data structure.
2083 * Pointer to error structure.
2086 * 0 on success, a negative errno value otherwise and rte_errno is set.
2090 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2091 uint64_t item_flags,
2092 struct rte_eth_dev *dev,
2093 struct rte_flow_error *error)
2095 struct mlx5_priv *priv = dev->data->dev_private;
2096 const struct rte_flow_item_geneve *spec = item->spec;
2097 const struct rte_flow_item_geneve *mask = item->mask;
2100 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2101 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2102 const struct rte_flow_item_geneve nic_mask = {
2103 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2104 .vni = "\xff\xff\xff",
2105 .protocol = RTE_BE16(UINT16_MAX),
2108 if (!priv->config.hca_attr.tunnel_stateless_geneve_rx)
2109 return rte_flow_error_set(error, ENOTSUP,
2110 RTE_FLOW_ERROR_TYPE_ITEM, item,
2111 "L3 Geneve is not enabled by device"
2112 " parameter and/or not configured in"
2114 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2115 return rte_flow_error_set(error, ENOTSUP,
2116 RTE_FLOW_ERROR_TYPE_ITEM, item,
2117 "multiple tunnel layers not"
2120 * Verify only UDPv4 is present as defined in
2121 * https://tools.ietf.org/html/rfc7348
2123 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2124 return rte_flow_error_set(error, EINVAL,
2125 RTE_FLOW_ERROR_TYPE_ITEM, item,
2126 "no outer UDP layer found");
2128 mask = &rte_flow_item_geneve_mask;
2129 ret = mlx5_flow_item_acceptable
2130 (item, (const uint8_t *)mask,
2131 (const uint8_t *)&nic_mask,
2132 sizeof(struct rte_flow_item_geneve), error);
2136 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2137 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2138 MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2139 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2140 return rte_flow_error_set(error, ENOTSUP,
2141 RTE_FLOW_ERROR_TYPE_ITEM,
2143 "Geneve protocol unsupported"
2144 " fields are being used");
2145 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2146 return rte_flow_error_set
2148 RTE_FLOW_ERROR_TYPE_ITEM,
2150 "Unsupported Geneve options length");
2152 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2153 return rte_flow_error_set
2155 RTE_FLOW_ERROR_TYPE_ITEM, item,
2156 "Geneve tunnel must be fully defined");
2161 * Validate MPLS item.
2164 * Pointer to the rte_eth_dev structure.
2166 * Item specification.
2167 * @param[in] item_flags
2168 * Bit-fields that holds the items detected until now.
2169 * @param[in] prev_layer
2170 * The protocol layer indicated in previous item.
2172 * Pointer to error structure.
2175 * 0 on success, a negative errno value otherwise and rte_errno is set.
2178 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
2179 const struct rte_flow_item *item __rte_unused,
2180 uint64_t item_flags __rte_unused,
2181 uint64_t prev_layer __rte_unused,
2182 struct rte_flow_error *error)
2184 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
2185 const struct rte_flow_item_mpls *mask = item->mask;
2186 struct mlx5_priv *priv = dev->data->dev_private;
2189 if (!priv->config.mpls_en)
2190 return rte_flow_error_set(error, ENOTSUP,
2191 RTE_FLOW_ERROR_TYPE_ITEM, item,
2192 "MPLS not supported or"
2193 " disabled in firmware"
2195 /* MPLS over IP, UDP, GRE is allowed */
2196 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
2197 MLX5_FLOW_LAYER_OUTER_L4_UDP |
2198 MLX5_FLOW_LAYER_GRE)))
2199 return rte_flow_error_set(error, EINVAL,
2200 RTE_FLOW_ERROR_TYPE_ITEM, item,
2201 "protocol filtering not compatible"
2202 " with MPLS layer");
2203 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
2204 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
2205 !(item_flags & MLX5_FLOW_LAYER_GRE))
2206 return rte_flow_error_set(error, ENOTSUP,
2207 RTE_FLOW_ERROR_TYPE_ITEM, item,
2208 "multiple tunnel layers not"
2211 mask = &rte_flow_item_mpls_mask;
2212 ret = mlx5_flow_item_acceptable
2213 (item, (const uint8_t *)mask,
2214 (const uint8_t *)&rte_flow_item_mpls_mask,
2215 sizeof(struct rte_flow_item_mpls), error);
2220 return rte_flow_error_set(error, ENOTSUP,
2221 RTE_FLOW_ERROR_TYPE_ITEM, item,
2222 "MPLS is not supported by Verbs, please"
2227 * Validate NVGRE item.
2230 * Item specification.
2231 * @param[in] item_flags
2232 * Bit flags to mark detected items.
2233 * @param[in] target_protocol
2234 * The next protocol in the previous item.
2236 * Pointer to error structure.
2239 * 0 on success, a negative errno value otherwise and rte_errno is set.
2242 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
2243 uint64_t item_flags,
2244 uint8_t target_protocol,
2245 struct rte_flow_error *error)
2247 const struct rte_flow_item_nvgre *mask = item->mask;
2250 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2251 return rte_flow_error_set(error, EINVAL,
2252 RTE_FLOW_ERROR_TYPE_ITEM, item,
2253 "protocol filtering not compatible"
2254 " with this GRE layer");
2255 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2256 return rte_flow_error_set(error, ENOTSUP,
2257 RTE_FLOW_ERROR_TYPE_ITEM, item,
2258 "multiple tunnel layers not"
2260 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2261 return rte_flow_error_set(error, ENOTSUP,
2262 RTE_FLOW_ERROR_TYPE_ITEM, item,
2263 "L3 Layer is missing");
2265 mask = &rte_flow_item_nvgre_mask;
2266 ret = mlx5_flow_item_acceptable
2267 (item, (const uint8_t *)mask,
2268 (const uint8_t *)&rte_flow_item_nvgre_mask,
2269 sizeof(struct rte_flow_item_nvgre), error);
2275 /* Allocate unique ID for the split Q/RSS subflows. */
2277 flow_qrss_get_id(struct rte_eth_dev *dev)
2279 struct mlx5_priv *priv = dev->data->dev_private;
2280 uint32_t qrss_id, ret;
2282 ret = mlx5_flow_id_get(priv->qrss_id_pool, &qrss_id);
2285 MLX5_ASSERT(qrss_id);
2289 /* Free unique ID for the split Q/RSS subflows. */
2291 flow_qrss_free_id(struct rte_eth_dev *dev, uint32_t qrss_id)
2293 struct mlx5_priv *priv = dev->data->dev_private;
2296 mlx5_flow_id_release(priv->qrss_id_pool, qrss_id);
2300 * Release resource related QUEUE/RSS action split.
2303 * Pointer to Ethernet device.
2305 * Flow to release id's from.
2308 flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
2309 struct rte_flow *flow)
2311 struct mlx5_flow *dev_flow;
2313 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
2314 if (dev_flow->qrss_id)
2315 flow_qrss_free_id(dev, dev_flow->qrss_id);
2319 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
2320 const struct rte_flow_attr *attr __rte_unused,
2321 const struct rte_flow_item items[] __rte_unused,
2322 const struct rte_flow_action actions[] __rte_unused,
2323 bool external __rte_unused,
2324 struct rte_flow_error *error)
2326 return rte_flow_error_set(error, ENOTSUP,
2327 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2330 static struct mlx5_flow *
2331 flow_null_prepare(const struct rte_flow_attr *attr __rte_unused,
2332 const struct rte_flow_item items[] __rte_unused,
2333 const struct rte_flow_action actions[] __rte_unused,
2334 struct rte_flow_error *error)
2336 rte_flow_error_set(error, ENOTSUP,
2337 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2342 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
2343 struct mlx5_flow *dev_flow __rte_unused,
2344 const struct rte_flow_attr *attr __rte_unused,
2345 const struct rte_flow_item items[] __rte_unused,
2346 const struct rte_flow_action actions[] __rte_unused,
2347 struct rte_flow_error *error)
2349 return rte_flow_error_set(error, ENOTSUP,
2350 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2354 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
2355 struct rte_flow *flow __rte_unused,
2356 struct rte_flow_error *error)
2358 return rte_flow_error_set(error, ENOTSUP,
2359 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2363 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
2364 struct rte_flow *flow __rte_unused)
2369 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
2370 struct rte_flow *flow __rte_unused)
2375 flow_null_query(struct rte_eth_dev *dev __rte_unused,
2376 struct rte_flow *flow __rte_unused,
2377 const struct rte_flow_action *actions __rte_unused,
2378 void *data __rte_unused,
2379 struct rte_flow_error *error)
2381 return rte_flow_error_set(error, ENOTSUP,
2382 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2385 /* Void driver to protect from null pointer reference. */
2386 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
2387 .validate = flow_null_validate,
2388 .prepare = flow_null_prepare,
2389 .translate = flow_null_translate,
2390 .apply = flow_null_apply,
2391 .remove = flow_null_remove,
2392 .destroy = flow_null_destroy,
2393 .query = flow_null_query,
2397 * Select flow driver type according to flow attributes and device
2401 * Pointer to the dev structure.
2403 * Pointer to the flow attributes.
2406 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
2408 static enum mlx5_flow_drv_type
2409 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
2411 struct mlx5_priv *priv = dev->data->dev_private;
2412 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
2414 if (attr->transfer && priv->config.dv_esw_en)
2415 type = MLX5_FLOW_TYPE_DV;
2416 if (!attr->transfer)
2417 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
2418 MLX5_FLOW_TYPE_VERBS;
2422 #define flow_get_drv_ops(type) flow_drv_ops[type]
2425 * Flow driver validation API. This abstracts calling driver specific functions.
2426 * The type of flow driver is determined according to flow attributes.
2429 * Pointer to the dev structure.
2431 * Pointer to the flow attributes.
2433 * Pointer to the list of items.
2434 * @param[in] actions
2435 * Pointer to the list of actions.
2436 * @param[in] external
2437 * This flow rule is created by request external to PMD.
2439 * Pointer to the error structure.
2442 * 0 on success, a negative errno value otherwise and rte_errno is set.
2445 flow_drv_validate(struct rte_eth_dev *dev,
2446 const struct rte_flow_attr *attr,
2447 const struct rte_flow_item items[],
2448 const struct rte_flow_action actions[],
2449 bool external, struct rte_flow_error *error)
2451 const struct mlx5_flow_driver_ops *fops;
2452 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
2454 fops = flow_get_drv_ops(type);
2455 return fops->validate(dev, attr, items, actions, external, error);
2459 * Flow driver preparation API. This abstracts calling driver specific
2460 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2461 * calculates the size of memory required for device flow, allocates the memory,
2462 * initializes the device flow and returns the pointer.
2465 * This function initializes device flow structure such as dv or verbs in
2466 * struct mlx5_flow. However, it is caller's responsibility to initialize the
2467 * rest. For example, adding returning device flow to flow->dev_flow list and
2468 * setting backward reference to the flow should be done out of this function.
2469 * layers field is not filled either.
2472 * Pointer to the flow attributes.
2474 * Pointer to the list of items.
2475 * @param[in] actions
2476 * Pointer to the list of actions.
2478 * Pointer to the error structure.
2481 * Pointer to device flow on success, otherwise NULL and rte_errno is set.
2483 static inline struct mlx5_flow *
2484 flow_drv_prepare(const struct rte_flow *flow,
2485 const struct rte_flow_attr *attr,
2486 const struct rte_flow_item items[],
2487 const struct rte_flow_action actions[],
2488 struct rte_flow_error *error)
2490 const struct mlx5_flow_driver_ops *fops;
2491 enum mlx5_flow_drv_type type = flow->drv_type;
2493 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2494 fops = flow_get_drv_ops(type);
2495 return fops->prepare(attr, items, actions, error);
2499 * Flow driver translation API. This abstracts calling driver specific
2500 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2501 * translates a generic flow into a driver flow. flow_drv_prepare() must
2505 * dev_flow->layers could be filled as a result of parsing during translation
2506 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
2507 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
2508 * flow->actions could be overwritten even though all the expanded dev_flows
2509 * have the same actions.
2512 * Pointer to the rte dev structure.
2513 * @param[in, out] dev_flow
2514 * Pointer to the mlx5 flow.
2516 * Pointer to the flow attributes.
2518 * Pointer to the list of items.
2519 * @param[in] actions
2520 * Pointer to the list of actions.
2522 * Pointer to the error structure.
2525 * 0 on success, a negative errno value otherwise and rte_errno is set.
2528 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
2529 const struct rte_flow_attr *attr,
2530 const struct rte_flow_item items[],
2531 const struct rte_flow_action actions[],
2532 struct rte_flow_error *error)
2534 const struct mlx5_flow_driver_ops *fops;
2535 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
2537 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2538 fops = flow_get_drv_ops(type);
2539 return fops->translate(dev, dev_flow, attr, items, actions, error);
2543 * Flow driver apply API. This abstracts calling driver specific functions.
2544 * Parent flow (rte_flow) should have driver type (drv_type). It applies
2545 * translated driver flows on to device. flow_drv_translate() must precede.
2548 * Pointer to Ethernet device structure.
2549 * @param[in, out] flow
2550 * Pointer to flow structure.
2552 * Pointer to error structure.
2555 * 0 on success, a negative errno value otherwise and rte_errno is set.
2558 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
2559 struct rte_flow_error *error)
2561 const struct mlx5_flow_driver_ops *fops;
2562 enum mlx5_flow_drv_type type = flow->drv_type;
2564 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2565 fops = flow_get_drv_ops(type);
2566 return fops->apply(dev, flow, error);
2570 * Flow driver remove API. This abstracts calling driver specific functions.
2571 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2572 * on device. All the resources of the flow should be freed by calling
2573 * flow_drv_destroy().
2576 * Pointer to Ethernet device.
2577 * @param[in, out] flow
2578 * Pointer to flow structure.
2581 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
2583 const struct mlx5_flow_driver_ops *fops;
2584 enum mlx5_flow_drv_type type = flow->drv_type;
2586 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2587 fops = flow_get_drv_ops(type);
2588 fops->remove(dev, flow);
2592 * Flow driver destroy API. This abstracts calling driver specific functions.
2593 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2594 * on device and releases resources of the flow.
2597 * Pointer to Ethernet device.
2598 * @param[in, out] flow
2599 * Pointer to flow structure.
2602 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
2604 const struct mlx5_flow_driver_ops *fops;
2605 enum mlx5_flow_drv_type type = flow->drv_type;
2607 flow_mreg_split_qrss_release(dev, flow);
2608 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2609 fops = flow_get_drv_ops(type);
2610 fops->destroy(dev, flow);
2614 * Validate a flow supported by the NIC.
2616 * @see rte_flow_validate()
2620 mlx5_flow_validate(struct rte_eth_dev *dev,
2621 const struct rte_flow_attr *attr,
2622 const struct rte_flow_item items[],
2623 const struct rte_flow_action actions[],
2624 struct rte_flow_error *error)
2628 ret = flow_drv_validate(dev, attr, items, actions, true, error);
2635 * Get RSS action from the action list.
2637 * @param[in] actions
2638 * Pointer to the list of actions.
2641 * Pointer to the RSS action if exist, else return NULL.
2643 static const struct rte_flow_action_rss*
2644 flow_get_rss_action(const struct rte_flow_action actions[])
2646 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2647 switch (actions->type) {
2648 case RTE_FLOW_ACTION_TYPE_RSS:
2649 return (const struct rte_flow_action_rss *)
2659 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2661 const struct rte_flow_item *item;
2662 unsigned int has_vlan = 0;
2664 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2665 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2671 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2672 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2673 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2674 MLX5_EXPANSION_ROOT_OUTER;
2678 * Get layer flags from the prefix flow.
2680 * Some flows may be split to several subflows, the prefix subflow gets the
2681 * match items and the suffix sub flow gets the actions.
2682 * Some actions need the user defined match item flags to get the detail for
2684 * This function helps the suffix flow to get the item layer flags from prefix
2687 * @param[in] dev_flow
2688 * Pointer the created preifx subflow.
2691 * The layers get from prefix subflow.
2693 static inline uint64_t
2694 flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow)
2696 uint64_t layers = 0;
2698 /* If no decap actions, use the layers directly. */
2699 if (!(dev_flow->actions & MLX5_FLOW_ACTION_DECAP))
2700 return dev_flow->layers;
2701 /* Convert L3 layers with decap action. */
2702 if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4)
2703 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
2704 else if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6)
2705 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
2706 /* Convert L4 layers with decap action. */
2707 if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L4_TCP)
2708 layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
2709 else if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L4_UDP)
2710 layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
2715 * Get metadata split action information.
2717 * @param[in] actions
2718 * Pointer to the list of actions.
2720 * Pointer to the return pointer.
2721 * @param[out] qrss_type
2722 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
2723 * if no QUEUE/RSS is found.
2724 * @param[out] encap_idx
2725 * Pointer to the index of the encap action if exists, otherwise the last
2729 * Total number of actions.
2732 flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[],
2733 const struct rte_flow_action **qrss,
2736 const struct rte_flow_action_raw_encap *raw_encap;
2738 int raw_decap_idx = -1;
2741 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2742 switch (actions->type) {
2743 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2744 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2745 *encap_idx = actions_n;
2747 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
2748 raw_decap_idx = actions_n;
2750 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2751 raw_encap = actions->conf;
2752 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
2753 *encap_idx = raw_decap_idx != -1 ?
2754 raw_decap_idx : actions_n;
2756 case RTE_FLOW_ACTION_TYPE_QUEUE:
2757 case RTE_FLOW_ACTION_TYPE_RSS:
2765 if (*encap_idx == -1)
2766 *encap_idx = actions_n;
2767 /* Count RTE_FLOW_ACTION_TYPE_END. */
2768 return actions_n + 1;
2772 * Check meter action from the action list.
2774 * @param[in] actions
2775 * Pointer to the list of actions.
2777 * Pointer to the meter exist flag.
2780 * Total number of actions.
2783 flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr)
2789 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2790 switch (actions->type) {
2791 case RTE_FLOW_ACTION_TYPE_METER:
2799 /* Count RTE_FLOW_ACTION_TYPE_END. */
2800 return actions_n + 1;
2804 * Check if the flow should be splited due to hairpin.
2805 * The reason for the split is that in current HW we can't
2806 * support encap on Rx, so if a flow have encap we move it
2810 * Pointer to Ethernet device.
2812 * Flow rule attributes.
2813 * @param[in] actions
2814 * Associated actions (list terminated by the END action).
2817 * > 0 the number of actions and the flow should be split,
2818 * 0 when no split required.
2821 flow_check_hairpin_split(struct rte_eth_dev *dev,
2822 const struct rte_flow_attr *attr,
2823 const struct rte_flow_action actions[])
2825 int queue_action = 0;
2828 const struct rte_flow_action_queue *queue;
2829 const struct rte_flow_action_rss *rss;
2830 const struct rte_flow_action_raw_encap *raw_encap;
2834 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2835 switch (actions->type) {
2836 case RTE_FLOW_ACTION_TYPE_QUEUE:
2837 queue = actions->conf;
2840 if (mlx5_rxq_get_type(dev, queue->index) !=
2841 MLX5_RXQ_TYPE_HAIRPIN)
2846 case RTE_FLOW_ACTION_TYPE_RSS:
2847 rss = actions->conf;
2848 if (rss == NULL || rss->queue_num == 0)
2850 if (mlx5_rxq_get_type(dev, rss->queue[0]) !=
2851 MLX5_RXQ_TYPE_HAIRPIN)
2856 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2857 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2861 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2862 raw_encap = actions->conf;
2863 if (raw_encap->size >
2864 (sizeof(struct rte_flow_item_eth) +
2865 sizeof(struct rte_flow_item_ipv4)))
2874 if (encap == 1 && queue_action)
2879 /* Declare flow create/destroy prototype in advance. */
2880 static struct rte_flow *
2881 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2882 const struct rte_flow_attr *attr,
2883 const struct rte_flow_item items[],
2884 const struct rte_flow_action actions[],
2885 bool external, struct rte_flow_error *error);
2888 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2889 struct rte_flow *flow);
2892 * Add a flow of copying flow metadata registers in RX_CP_TBL.
2894 * As mark_id is unique, if there's already a registered flow for the mark_id,
2895 * return by increasing the reference counter of the resource. Otherwise, create
2896 * the resource (mcp_res) and flow.
2899 * - If ingress port is ANY and reg_c[1] is mark_id,
2900 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
2902 * For default flow (zero mark_id), flow is like,
2903 * - If ingress port is ANY,
2904 * reg_b := reg_c[0] and jump to RX_ACT_TBL.
2907 * Pointer to Ethernet device.
2909 * ID of MARK action, zero means default flow for META.
2911 * Perform verbose error reporting if not NULL.
2914 * Associated resource on success, NULL otherwise and rte_errno is set.
2916 static struct mlx5_flow_mreg_copy_resource *
2917 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
2918 struct rte_flow_error *error)
2920 struct mlx5_priv *priv = dev->data->dev_private;
2921 struct rte_flow_attr attr = {
2922 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
2925 struct mlx5_rte_flow_item_tag tag_spec = {
2928 struct rte_flow_item items[] = {
2929 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
2931 struct rte_flow_action_mark ftag = {
2934 struct mlx5_flow_action_copy_mreg cp_mreg = {
2938 struct rte_flow_action_jump jump = {
2939 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
2941 struct rte_flow_action actions[] = {
2942 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
2944 struct mlx5_flow_mreg_copy_resource *mcp_res;
2947 /* Fill the register fileds in the flow. */
2948 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
2952 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
2956 /* Check if already registered. */
2957 MLX5_ASSERT(priv->mreg_cp_tbl);
2958 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id);
2960 /* For non-default rule. */
2961 if (mark_id != MLX5_DEFAULT_COPY_ID)
2963 MLX5_ASSERT(mark_id != MLX5_DEFAULT_COPY_ID ||
2964 mcp_res->refcnt == 1);
2967 /* Provide the full width of FLAG specific value. */
2968 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
2969 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
2970 /* Build a new flow. */
2971 if (mark_id != MLX5_DEFAULT_COPY_ID) {
2972 items[0] = (struct rte_flow_item){
2973 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
2976 items[1] = (struct rte_flow_item){
2977 .type = RTE_FLOW_ITEM_TYPE_END,
2979 actions[0] = (struct rte_flow_action){
2980 .type = MLX5_RTE_FLOW_ACTION_TYPE_MARK,
2983 actions[1] = (struct rte_flow_action){
2984 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
2987 actions[2] = (struct rte_flow_action){
2988 .type = RTE_FLOW_ACTION_TYPE_JUMP,
2991 actions[3] = (struct rte_flow_action){
2992 .type = RTE_FLOW_ACTION_TYPE_END,
2995 /* Default rule, wildcard match. */
2996 attr.priority = MLX5_FLOW_PRIO_RSVD;
2997 items[0] = (struct rte_flow_item){
2998 .type = RTE_FLOW_ITEM_TYPE_END,
3000 actions[0] = (struct rte_flow_action){
3001 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3004 actions[1] = (struct rte_flow_action){
3005 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3008 actions[2] = (struct rte_flow_action){
3009 .type = RTE_FLOW_ACTION_TYPE_END,
3012 /* Build a new entry. */
3013 mcp_res = rte_zmalloc(__func__, sizeof(*mcp_res), 0);
3019 * The copy Flows are not included in any list. There
3020 * ones are referenced from other Flows and can not
3021 * be applied, removed, deleted in ardbitrary order
3022 * by list traversing.
3024 mcp_res->flow = flow_list_create(dev, NULL, &attr, items,
3025 actions, false, error);
3029 mcp_res->hlist_ent.key = mark_id;
3030 ret = mlx5_hlist_insert(priv->mreg_cp_tbl,
3031 &mcp_res->hlist_ent);
3038 flow_list_destroy(dev, NULL, mcp_res->flow);
3044 * Release flow in RX_CP_TBL.
3047 * Pointer to Ethernet device.
3049 * Parent flow for wich copying is provided.
3052 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
3053 struct rte_flow *flow)
3055 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3056 struct mlx5_priv *priv = dev->data->dev_private;
3058 if (!mcp_res || !priv->mreg_cp_tbl)
3060 if (flow->copy_applied) {
3061 MLX5_ASSERT(mcp_res->appcnt);
3062 flow->copy_applied = 0;
3064 if (!mcp_res->appcnt)
3065 flow_drv_remove(dev, mcp_res->flow);
3068 * We do not check availability of metadata registers here,
3069 * because copy resources are not allocated in this case.
3071 if (--mcp_res->refcnt)
3073 MLX5_ASSERT(mcp_res->flow);
3074 flow_list_destroy(dev, NULL, mcp_res->flow);
3075 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3077 flow->mreg_copy = NULL;
3081 * Start flow in RX_CP_TBL.
3084 * Pointer to Ethernet device.
3086 * Parent flow for wich copying is provided.
3089 * 0 on success, a negative errno value otherwise and rte_errno is set.
3092 flow_mreg_start_copy_action(struct rte_eth_dev *dev,
3093 struct rte_flow *flow)
3095 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3098 if (!mcp_res || flow->copy_applied)
3100 if (!mcp_res->appcnt) {
3101 ret = flow_drv_apply(dev, mcp_res->flow, NULL);
3106 flow->copy_applied = 1;
3111 * Stop flow in RX_CP_TBL.
3114 * Pointer to Ethernet device.
3116 * Parent flow for wich copying is provided.
3119 flow_mreg_stop_copy_action(struct rte_eth_dev *dev,
3120 struct rte_flow *flow)
3122 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3124 if (!mcp_res || !flow->copy_applied)
3126 MLX5_ASSERT(mcp_res->appcnt);
3128 flow->copy_applied = 0;
3129 if (!mcp_res->appcnt)
3130 flow_drv_remove(dev, mcp_res->flow);
3134 * Remove the default copy action from RX_CP_TBL.
3137 * Pointer to Ethernet device.
3140 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
3142 struct mlx5_flow_mreg_copy_resource *mcp_res;
3143 struct mlx5_priv *priv = dev->data->dev_private;
3145 /* Check if default flow is registered. */
3146 if (!priv->mreg_cp_tbl)
3148 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl,
3149 MLX5_DEFAULT_COPY_ID);
3152 MLX5_ASSERT(mcp_res->flow);
3153 flow_list_destroy(dev, NULL, mcp_res->flow);
3154 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3159 * Add the default copy action in in RX_CP_TBL.
3162 * Pointer to Ethernet device.
3164 * Perform verbose error reporting if not NULL.
3167 * 0 for success, negative value otherwise and rte_errno is set.
3170 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
3171 struct rte_flow_error *error)
3173 struct mlx5_priv *priv = dev->data->dev_private;
3174 struct mlx5_flow_mreg_copy_resource *mcp_res;
3176 /* Check whether extensive metadata feature is engaged. */
3177 if (!priv->config.dv_flow_en ||
3178 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3179 !mlx5_flow_ext_mreg_supported(dev) ||
3180 !priv->sh->dv_regc0_mask)
3182 mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error);
3189 * Add a flow of copying flow metadata registers in RX_CP_TBL.
3191 * All the flow having Q/RSS action should be split by
3192 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
3193 * performs the following,
3194 * - CQE->flow_tag := reg_c[1] (MARK)
3195 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3196 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
3197 * but there should be a flow per each MARK ID set by MARK action.
3199 * For the aforementioned reason, if there's a MARK action in flow's action
3200 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
3201 * the MARK ID to CQE's flow_tag like,
3202 * - If reg_c[1] is mark_id,
3203 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3205 * For SET_META action which stores value in reg_c[0], as the destination is
3206 * also a flow metadata register (reg_b), adding a default flow is enough. Zero
3207 * MARK ID means the default flow. The default flow looks like,
3208 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3211 * Pointer to Ethernet device.
3213 * Pointer to flow structure.
3214 * @param[in] actions
3215 * Pointer to the list of actions.
3217 * Perform verbose error reporting if not NULL.
3220 * 0 on success, negative value otherwise and rte_errno is set.
3223 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
3224 struct rte_flow *flow,
3225 const struct rte_flow_action *actions,
3226 struct rte_flow_error *error)
3228 struct mlx5_priv *priv = dev->data->dev_private;
3229 struct mlx5_dev_config *config = &priv->config;
3230 struct mlx5_flow_mreg_copy_resource *mcp_res;
3231 const struct rte_flow_action_mark *mark;
3233 /* Check whether extensive metadata feature is engaged. */
3234 if (!config->dv_flow_en ||
3235 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3236 !mlx5_flow_ext_mreg_supported(dev) ||
3237 !priv->sh->dv_regc0_mask)
3239 /* Find MARK action. */
3240 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3241 switch (actions->type) {
3242 case RTE_FLOW_ACTION_TYPE_FLAG:
3243 mcp_res = flow_mreg_add_copy_action
3244 (dev, MLX5_FLOW_MARK_DEFAULT, error);
3247 flow->mreg_copy = mcp_res;
3248 if (dev->data->dev_started) {
3250 flow->copy_applied = 1;
3253 case RTE_FLOW_ACTION_TYPE_MARK:
3254 mark = (const struct rte_flow_action_mark *)
3257 flow_mreg_add_copy_action(dev, mark->id, error);
3260 flow->mreg_copy = mcp_res;
3261 if (dev->data->dev_started) {
3263 flow->copy_applied = 1;
3273 #define MLX5_MAX_SPLIT_ACTIONS 24
3274 #define MLX5_MAX_SPLIT_ITEMS 24
3277 * Split the hairpin flow.
3278 * Since HW can't support encap on Rx we move the encap to Tx.
3279 * If the count action is after the encap then we also
3280 * move the count action. in this case the count will also measure
3284 * Pointer to Ethernet device.
3285 * @param[in] actions
3286 * Associated actions (list terminated by the END action).
3287 * @param[out] actions_rx
3289 * @param[out] actions_tx
3291 * @param[out] pattern_tx
3292 * The pattern items for the Tx flow.
3293 * @param[out] flow_id
3294 * The flow ID connected to this flow.
3300 flow_hairpin_split(struct rte_eth_dev *dev,
3301 const struct rte_flow_action actions[],
3302 struct rte_flow_action actions_rx[],
3303 struct rte_flow_action actions_tx[],
3304 struct rte_flow_item pattern_tx[],
3307 struct mlx5_priv *priv = dev->data->dev_private;
3308 const struct rte_flow_action_raw_encap *raw_encap;
3309 const struct rte_flow_action_raw_decap *raw_decap;
3310 struct mlx5_rte_flow_action_set_tag *set_tag;
3311 struct rte_flow_action *tag_action;
3312 struct mlx5_rte_flow_item_tag *tag_item;
3313 struct rte_flow_item *item;
3317 mlx5_flow_id_get(priv->sh->flow_id_pool, flow_id);
3318 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3319 switch (actions->type) {
3320 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3321 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3322 rte_memcpy(actions_tx, actions,
3323 sizeof(struct rte_flow_action));
3326 case RTE_FLOW_ACTION_TYPE_COUNT:
3328 rte_memcpy(actions_tx, actions,
3329 sizeof(struct rte_flow_action));
3332 rte_memcpy(actions_rx, actions,
3333 sizeof(struct rte_flow_action));
3337 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3338 raw_encap = actions->conf;
3339 if (raw_encap->size >
3340 (sizeof(struct rte_flow_item_eth) +
3341 sizeof(struct rte_flow_item_ipv4))) {
3342 memcpy(actions_tx, actions,
3343 sizeof(struct rte_flow_action));
3347 rte_memcpy(actions_rx, actions,
3348 sizeof(struct rte_flow_action));
3352 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3353 raw_decap = actions->conf;
3354 if (raw_decap->size <
3355 (sizeof(struct rte_flow_item_eth) +
3356 sizeof(struct rte_flow_item_ipv4))) {
3357 memcpy(actions_tx, actions,
3358 sizeof(struct rte_flow_action));
3361 rte_memcpy(actions_rx, actions,
3362 sizeof(struct rte_flow_action));
3367 rte_memcpy(actions_rx, actions,
3368 sizeof(struct rte_flow_action));
3373 /* Add set meta action and end action for the Rx flow. */
3374 tag_action = actions_rx;
3375 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3377 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
3379 set_tag = (void *)actions_rx;
3380 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL);
3381 MLX5_ASSERT(set_tag->id > REG_NONE);
3382 set_tag->data = *flow_id;
3383 tag_action->conf = set_tag;
3384 /* Create Tx item list. */
3385 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
3386 addr = (void *)&pattern_tx[2];
3388 item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3389 tag_item = (void *)addr;
3390 tag_item->data = *flow_id;
3391 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
3392 MLX5_ASSERT(set_tag->id > REG_NONE);
3393 item->spec = tag_item;
3394 addr += sizeof(struct mlx5_rte_flow_item_tag);
3395 tag_item = (void *)addr;
3396 tag_item->data = UINT32_MAX;
3397 tag_item->id = UINT16_MAX;
3398 item->mask = tag_item;
3399 addr += sizeof(struct mlx5_rte_flow_item_tag);
3402 item->type = RTE_FLOW_ITEM_TYPE_END;
3407 * The last stage of splitting chain, just creates the subflow
3408 * without any modification.
3411 * Pointer to Ethernet device.
3413 * Parent flow structure pointer.
3414 * @param[in, out] sub_flow
3415 * Pointer to return the created subflow, may be NULL.
3416 * @param[in] prefix_layers
3417 * Prefix subflow layers, may be 0.
3419 * Flow rule attributes.
3421 * Pattern specification (list terminated by the END pattern item).
3422 * @param[in] actions
3423 * Associated actions (list terminated by the END action).
3424 * @param[in] external
3425 * This flow rule is created by request external to PMD.
3427 * Perform verbose error reporting if not NULL.
3429 * 0 on success, negative value otherwise
3432 flow_create_split_inner(struct rte_eth_dev *dev,
3433 struct rte_flow *flow,
3434 struct mlx5_flow **sub_flow,
3435 uint64_t prefix_layers,
3436 const struct rte_flow_attr *attr,
3437 const struct rte_flow_item items[],
3438 const struct rte_flow_action actions[],
3439 bool external, struct rte_flow_error *error)
3441 struct mlx5_flow *dev_flow;
3443 dev_flow = flow_drv_prepare(flow, attr, items, actions, error);
3446 dev_flow->flow = flow;
3447 dev_flow->external = external;
3448 /* Subflow object was created, we must include one in the list. */
3449 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
3451 * If dev_flow is as one of the suffix flow, some actions in suffix
3452 * flow may need some user defined item layer flags.
3455 dev_flow->layers = prefix_layers;
3457 *sub_flow = dev_flow;
3458 return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
3462 * Split the meter flow.
3464 * As meter flow will split to three sub flow, other than meter
3465 * action, the other actions make sense to only meter accepts
3466 * the packet. If it need to be dropped, no other additional
3467 * actions should be take.
3469 * One kind of special action which decapsulates the L3 tunnel
3470 * header will be in the prefix sub flow, as not to take the
3471 * L3 tunnel header into account.
3474 * Pointer to Ethernet device.
3476 * Pattern specification (list terminated by the END pattern item).
3477 * @param[out] sfx_items
3478 * Suffix flow match items (list terminated by the END pattern item).
3479 * @param[in] actions
3480 * Associated actions (list terminated by the END action).
3481 * @param[out] actions_sfx
3482 * Suffix flow actions.
3483 * @param[out] actions_pre
3484 * Prefix flow actions.
3485 * @param[out] pattern_sfx
3486 * The pattern items for the suffix flow.
3487 * @param[out] tag_sfx
3488 * Pointer to suffix flow tag.
3494 flow_meter_split_prep(struct rte_eth_dev *dev,
3495 const struct rte_flow_item items[],
3496 struct rte_flow_item sfx_items[],
3497 const struct rte_flow_action actions[],
3498 struct rte_flow_action actions_sfx[],
3499 struct rte_flow_action actions_pre[])
3501 struct rte_flow_action *tag_action = NULL;
3502 struct rte_flow_item *tag_item;
3503 struct mlx5_rte_flow_action_set_tag *set_tag;
3504 struct rte_flow_error error;
3505 const struct rte_flow_action_raw_encap *raw_encap;
3506 const struct rte_flow_action_raw_decap *raw_decap;
3507 struct mlx5_rte_flow_item_tag *tag_spec;
3508 struct mlx5_rte_flow_item_tag *tag_mask;
3510 bool copy_vlan = false;
3512 /* Prepare the actions for prefix and suffix flow. */
3513 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3514 struct rte_flow_action **action_cur = NULL;
3516 switch (actions->type) {
3517 case RTE_FLOW_ACTION_TYPE_METER:
3518 /* Add the extra tag action first. */
3519 tag_action = actions_pre;
3520 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3522 action_cur = &actions_pre;
3524 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3525 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
3526 action_cur = &actions_pre;
3528 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3529 raw_encap = actions->conf;
3530 if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE)
3531 action_cur = &actions_pre;
3533 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3534 raw_decap = actions->conf;
3535 if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
3536 action_cur = &actions_pre;
3538 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3539 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3546 action_cur = &actions_sfx;
3547 memcpy(*action_cur, actions, sizeof(struct rte_flow_action));
3550 /* Add end action to the actions. */
3551 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
3552 actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
3555 set_tag = (void *)actions_pre;
3556 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3558 * Get the id from the qrss_pool to make qrss share the id with meter.
3560 tag_id = flow_qrss_get_id(dev);
3561 set_tag->data = tag_id << MLX5_MTR_COLOR_BITS;
3563 tag_action->conf = set_tag;
3564 /* Prepare the suffix subflow items. */
3565 tag_item = sfx_items++;
3566 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
3567 int item_type = items->type;
3569 switch (item_type) {
3570 case RTE_FLOW_ITEM_TYPE_PORT_ID:
3571 memcpy(sfx_items, items, sizeof(*sfx_items));
3574 case RTE_FLOW_ITEM_TYPE_VLAN:
3576 memcpy(sfx_items, items, sizeof(*sfx_items));
3578 * Convert to internal match item, it is used
3579 * for vlan push and set vid.
3581 sfx_items->type = MLX5_RTE_FLOW_ITEM_TYPE_VLAN;
3589 sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
3591 tag_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
3592 tag_spec->data = tag_id << MLX5_MTR_COLOR_BITS;
3593 tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3594 tag_mask = tag_spec + 1;
3595 tag_mask->data = 0xffffff00;
3596 tag_item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3597 tag_item->spec = tag_spec;
3598 tag_item->last = NULL;
3599 tag_item->mask = tag_mask;
3604 * Split action list having QUEUE/RSS for metadata register copy.
3606 * Once Q/RSS action is detected in user's action list, the flow action
3607 * should be split in order to copy metadata registers, which will happen in
3609 * - CQE->flow_tag := reg_c[1] (MARK)
3610 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3611 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
3612 * This is because the last action of each flow must be a terminal action
3613 * (QUEUE, RSS or DROP).
3615 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
3616 * stored and kept in the mlx5_flow structure per each sub_flow.
3618 * The Q/RSS action is replaced with,
3619 * - SET_TAG, setting the allocated flow ID to reg_c[2].
3620 * And the following JUMP action is added at the end,
3621 * - JUMP, to RX_CP_TBL.
3623 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
3624 * flow_create_split_metadata() routine. The flow will look like,
3625 * - If flow ID matches (reg_c[2]), perform Q/RSS.
3628 * Pointer to Ethernet device.
3629 * @param[out] split_actions
3630 * Pointer to store split actions to jump to CP_TBL.
3631 * @param[in] actions
3632 * Pointer to the list of original flow actions.
3634 * Pointer to the Q/RSS action.
3635 * @param[in] actions_n
3636 * Number of original actions.
3638 * Perform verbose error reporting if not NULL.
3641 * non-zero unique flow_id on success, otherwise 0 and
3642 * error/rte_error are set.
3645 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
3646 struct rte_flow_action *split_actions,
3647 const struct rte_flow_action *actions,
3648 const struct rte_flow_action *qrss,
3649 int actions_n, struct rte_flow_error *error)
3651 struct mlx5_rte_flow_action_set_tag *set_tag;
3652 struct rte_flow_action_jump *jump;
3653 const int qrss_idx = qrss - actions;
3654 uint32_t flow_id = 0;
3658 * Given actions will be split
3659 * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
3660 * - Add jump to mreg CP_TBL.
3661 * As a result, there will be one more action.
3664 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
3665 set_tag = (void *)(split_actions + actions_n);
3667 * If tag action is not set to void(it means we are not the meter
3668 * suffix flow), add the tag action. Since meter suffix flow already
3669 * has the tag added.
3671 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
3673 * Allocate the new subflow ID. This one is unique within
3674 * device and not shared with representors. Otherwise,
3675 * we would have to resolve multi-thread access synch
3676 * issue. Each flow on the shared device is appended
3677 * with source vport identifier, so the resulting
3678 * flows will be unique in the shared (by master and
3679 * representors) domain even if they have coinciding
3682 flow_id = flow_qrss_get_id(dev);
3684 return rte_flow_error_set(error, ENOMEM,
3685 RTE_FLOW_ERROR_TYPE_ACTION,
3686 NULL, "can't allocate id "
3687 "for split Q/RSS subflow");
3688 /* Internal SET_TAG action to set flow ID. */
3689 *set_tag = (struct mlx5_rte_flow_action_set_tag){
3692 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
3696 /* Construct new actions array. */
3697 /* Replace QUEUE/RSS action. */
3698 split_actions[qrss_idx] = (struct rte_flow_action){
3699 .type = MLX5_RTE_FLOW_ACTION_TYPE_TAG,
3703 /* JUMP action to jump to mreg copy table (CP_TBL). */
3704 jump = (void *)(set_tag + 1);
3705 *jump = (struct rte_flow_action_jump){
3706 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
3708 split_actions[actions_n - 2] = (struct rte_flow_action){
3709 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3712 split_actions[actions_n - 1] = (struct rte_flow_action){
3713 .type = RTE_FLOW_ACTION_TYPE_END,
3719 * Extend the given action list for Tx metadata copy.
3721 * Copy the given action list to the ext_actions and add flow metadata register
3722 * copy action in order to copy reg_a set by WQE to reg_c[0].
3724 * @param[out] ext_actions
3725 * Pointer to the extended action list.
3726 * @param[in] actions
3727 * Pointer to the list of actions.
3728 * @param[in] actions_n
3729 * Number of actions in the list.
3731 * Perform verbose error reporting if not NULL.
3732 * @param[in] encap_idx
3733 * The encap action inndex.
3736 * 0 on success, negative value otherwise
3739 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
3740 struct rte_flow_action *ext_actions,
3741 const struct rte_flow_action *actions,
3742 int actions_n, struct rte_flow_error *error,
3745 struct mlx5_flow_action_copy_mreg *cp_mreg =
3746 (struct mlx5_flow_action_copy_mreg *)
3747 (ext_actions + actions_n + 1);
3750 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
3754 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
3759 memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx);
3760 if (encap_idx == actions_n - 1) {
3761 ext_actions[actions_n - 1] = (struct rte_flow_action){
3762 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3765 ext_actions[actions_n] = (struct rte_flow_action){
3766 .type = RTE_FLOW_ACTION_TYPE_END,
3769 ext_actions[encap_idx] = (struct rte_flow_action){
3770 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3773 memcpy(ext_actions + encap_idx + 1, actions + encap_idx,
3774 sizeof(*ext_actions) * (actions_n - encap_idx));
3780 * The splitting for metadata feature.
3782 * - Q/RSS action on NIC Rx should be split in order to pass by
3783 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3784 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3786 * - All the actions on NIC Tx should have a mreg copy action to
3787 * copy reg_a from WQE to reg_c[0].
3790 * Pointer to Ethernet device.
3792 * Parent flow structure pointer.
3793 * @param[in] prefix_layers
3794 * Prefix flow layer flags.
3796 * Flow rule attributes.
3798 * Pattern specification (list terminated by the END pattern item).
3799 * @param[in] actions
3800 * Associated actions (list terminated by the END action).
3801 * @param[in] external
3802 * This flow rule is created by request external to PMD.
3804 * Perform verbose error reporting if not NULL.
3806 * 0 on success, negative value otherwise
3809 flow_create_split_metadata(struct rte_eth_dev *dev,
3810 struct rte_flow *flow,
3811 uint64_t prefix_layers,
3812 const struct rte_flow_attr *attr,
3813 const struct rte_flow_item items[],
3814 const struct rte_flow_action actions[],
3815 bool external, struct rte_flow_error *error)
3817 struct mlx5_priv *priv = dev->data->dev_private;
3818 struct mlx5_dev_config *config = &priv->config;
3819 const struct rte_flow_action *qrss = NULL;
3820 struct rte_flow_action *ext_actions = NULL;
3821 struct mlx5_flow *dev_flow = NULL;
3822 uint32_t qrss_id = 0;
3829 /* Check whether extensive metadata feature is engaged. */
3830 if (!config->dv_flow_en ||
3831 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3832 !mlx5_flow_ext_mreg_supported(dev))
3833 return flow_create_split_inner(dev, flow, NULL, prefix_layers,
3834 attr, items, actions, external,
3836 actions_n = flow_parse_metadata_split_actions_info(actions, &qrss,
3839 /* Exclude hairpin flows from splitting. */
3840 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
3841 const struct rte_flow_action_queue *queue;
3844 if (mlx5_rxq_get_type(dev, queue->index) ==
3845 MLX5_RXQ_TYPE_HAIRPIN)
3847 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
3848 const struct rte_flow_action_rss *rss;
3851 if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
3852 MLX5_RXQ_TYPE_HAIRPIN)
3857 /* Check if it is in meter suffix table. */
3858 mtr_sfx = attr->group == (attr->transfer ?
3859 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
3860 MLX5_FLOW_TABLE_LEVEL_SUFFIX);
3862 * Q/RSS action on NIC Rx should be split in order to pass by
3863 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3864 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3866 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3867 sizeof(struct rte_flow_action_set_tag) +
3868 sizeof(struct rte_flow_action_jump);
3869 ext_actions = rte_zmalloc(__func__, act_size, 0);
3871 return rte_flow_error_set(error, ENOMEM,
3872 RTE_FLOW_ERROR_TYPE_ACTION,
3873 NULL, "no memory to split "
3876 * If we are the suffix flow of meter, tag already exist.
3877 * Set the tag action to void.
3880 ext_actions[qrss - actions].type =
3881 RTE_FLOW_ACTION_TYPE_VOID;
3883 ext_actions[qrss - actions].type =
3884 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3886 * Create the new actions list with removed Q/RSS action
3887 * and appended set tag and jump to register copy table
3888 * (RX_CP_TBL). We should preallocate unique tag ID here
3889 * in advance, because it is needed for set tag action.
3891 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
3892 qrss, actions_n, error);
3893 if (!mtr_sfx && !qrss_id) {
3897 } else if (attr->egress && !attr->transfer) {
3899 * All the actions on NIC Tx should have a metadata register
3900 * copy action to copy reg_a from WQE to reg_c[meta]
3902 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3903 sizeof(struct mlx5_flow_action_copy_mreg);
3904 ext_actions = rte_zmalloc(__func__, act_size, 0);
3906 return rte_flow_error_set(error, ENOMEM,
3907 RTE_FLOW_ERROR_TYPE_ACTION,
3908 NULL, "no memory to split "
3910 /* Create the action list appended with copy register. */
3911 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
3912 actions_n, error, encap_idx);
3916 /* Add the unmodified original or prefix subflow. */
3917 ret = flow_create_split_inner(dev, flow, &dev_flow, prefix_layers, attr,
3918 items, ext_actions ? ext_actions :
3919 actions, external, error);
3922 MLX5_ASSERT(dev_flow);
3924 const struct rte_flow_attr q_attr = {
3925 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
3928 /* Internal PMD action to set register. */
3929 struct mlx5_rte_flow_item_tag q_tag_spec = {
3933 struct rte_flow_item q_items[] = {
3935 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
3936 .spec = &q_tag_spec,
3941 .type = RTE_FLOW_ITEM_TYPE_END,
3944 struct rte_flow_action q_actions[] = {
3950 .type = RTE_FLOW_ACTION_TYPE_END,
3953 uint64_t layers = flow_get_prefix_layer_flags(dev_flow);
3956 * Configure the tag item only if there is no meter subflow.
3957 * Since tag is already marked in the meter suffix subflow
3958 * we can just use the meter suffix items as is.
3961 /* Not meter subflow. */
3962 MLX5_ASSERT(!mtr_sfx);
3964 * Put unique id in prefix flow due to it is destroyed
3965 * after suffix flow and id will be freed after there
3966 * is no actual flows with this id and identifier
3967 * reallocation becomes possible (for example, for
3968 * other flows in other threads).
3970 dev_flow->qrss_id = qrss_id;
3972 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
3976 q_tag_spec.id = ret;
3979 /* Add suffix subflow to execute Q/RSS. */
3980 ret = flow_create_split_inner(dev, flow, &dev_flow, layers,
3981 &q_attr, mtr_sfx ? items :
3986 MLX5_ASSERT(dev_flow);
3991 * We do not destroy the partially created sub_flows in case of error.
3992 * These ones are included into parent flow list and will be destroyed
3993 * by flow_drv_destroy.
3995 flow_qrss_free_id(dev, qrss_id);
3996 rte_free(ext_actions);
4001 * The splitting for meter feature.
4003 * - The meter flow will be split to two flows as prefix and
4004 * suffix flow. The packets make sense only it pass the prefix
4007 * - Reg_C_5 is used for the packet to match betweend prefix and
4011 * Pointer to Ethernet device.
4013 * Parent flow structure pointer.
4015 * Flow rule attributes.
4017 * Pattern specification (list terminated by the END pattern item).
4018 * @param[in] actions
4019 * Associated actions (list terminated by the END action).
4020 * @param[in] external
4021 * This flow rule is created by request external to PMD.
4023 * Perform verbose error reporting if not NULL.
4025 * 0 on success, negative value otherwise
4028 flow_create_split_meter(struct rte_eth_dev *dev,
4029 struct rte_flow *flow,
4030 const struct rte_flow_attr *attr,
4031 const struct rte_flow_item items[],
4032 const struct rte_flow_action actions[],
4033 bool external, struct rte_flow_error *error)
4035 struct mlx5_priv *priv = dev->data->dev_private;
4036 struct rte_flow_action *sfx_actions = NULL;
4037 struct rte_flow_action *pre_actions = NULL;
4038 struct rte_flow_item *sfx_items = NULL;
4039 struct mlx5_flow *dev_flow = NULL;
4040 struct rte_flow_attr sfx_attr = *attr;
4042 uint32_t mtr_tag_id = 0;
4049 actions_n = flow_check_meter_action(actions, &mtr);
4051 /* The five prefix actions: meter, decap, encap, tag, end. */
4052 act_size = sizeof(struct rte_flow_action) * (actions_n + 5) +
4053 sizeof(struct mlx5_rte_flow_action_set_tag);
4054 /* tag, vlan, port id, end. */
4055 #define METER_SUFFIX_ITEM 4
4056 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
4057 sizeof(struct mlx5_rte_flow_item_tag) * 2;
4058 sfx_actions = rte_zmalloc(__func__, (act_size + item_size), 0);
4060 return rte_flow_error_set(error, ENOMEM,
4061 RTE_FLOW_ERROR_TYPE_ACTION,
4062 NULL, "no memory to split "
4064 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
4066 pre_actions = sfx_actions + actions_n;
4067 mtr_tag_id = flow_meter_split_prep(dev, items, sfx_items,
4068 actions, sfx_actions,
4074 /* Add the prefix subflow. */
4075 ret = flow_create_split_inner(dev, flow, &dev_flow, 0, attr,
4076 items, pre_actions, external,
4082 dev_flow->mtr_flow_id = mtr_tag_id;
4083 /* Setting the sfx group atrr. */
4084 sfx_attr.group = sfx_attr.transfer ?
4085 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
4086 MLX5_FLOW_TABLE_LEVEL_SUFFIX;
4088 /* Add the prefix subflow. */
4089 ret = flow_create_split_metadata(dev, flow, dev_flow ?
4090 flow_get_prefix_layer_flags(dev_flow) :
4092 sfx_items ? sfx_items : items,
4093 sfx_actions ? sfx_actions : actions,
4097 rte_free(sfx_actions);
4102 * Split the flow to subflow set. The splitters might be linked
4103 * in the chain, like this:
4104 * flow_create_split_outer() calls:
4105 * flow_create_split_meter() calls:
4106 * flow_create_split_metadata(meter_subflow_0) calls:
4107 * flow_create_split_inner(metadata_subflow_0)
4108 * flow_create_split_inner(metadata_subflow_1)
4109 * flow_create_split_inner(metadata_subflow_2)
4110 * flow_create_split_metadata(meter_subflow_1) calls:
4111 * flow_create_split_inner(metadata_subflow_0)
4112 * flow_create_split_inner(metadata_subflow_1)
4113 * flow_create_split_inner(metadata_subflow_2)
4115 * This provide flexible way to add new levels of flow splitting.
4116 * The all of successfully created subflows are included to the
4117 * parent flow dev_flow list.
4120 * Pointer to Ethernet device.
4122 * Parent flow structure pointer.
4124 * Flow rule attributes.
4126 * Pattern specification (list terminated by the END pattern item).
4127 * @param[in] actions
4128 * Associated actions (list terminated by the END action).
4129 * @param[in] external
4130 * This flow rule is created by request external to PMD.
4132 * Perform verbose error reporting if not NULL.
4134 * 0 on success, negative value otherwise
4137 flow_create_split_outer(struct rte_eth_dev *dev,
4138 struct rte_flow *flow,
4139 const struct rte_flow_attr *attr,
4140 const struct rte_flow_item items[],
4141 const struct rte_flow_action actions[],
4142 bool external, struct rte_flow_error *error)
4146 ret = flow_create_split_meter(dev, flow, attr, items,
4147 actions, external, error);
4148 MLX5_ASSERT(ret <= 0);
4153 * Create a flow and add it to @p list.
4156 * Pointer to Ethernet device.
4158 * Pointer to a TAILQ flow list. If this parameter NULL,
4159 * no list insertion occurred, flow is just created,
4160 * this is caller's responsibility to track the
4163 * Flow rule attributes.
4165 * Pattern specification (list terminated by the END pattern item).
4166 * @param[in] actions
4167 * Associated actions (list terminated by the END action).
4168 * @param[in] external
4169 * This flow rule is created by request external to PMD.
4171 * Perform verbose error reporting if not NULL.
4174 * A flow on success, NULL otherwise and rte_errno is set.
4176 static struct rte_flow *
4177 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
4178 const struct rte_flow_attr *attr,
4179 const struct rte_flow_item items[],
4180 const struct rte_flow_action actions[],
4181 bool external, struct rte_flow_error *error)
4183 struct mlx5_priv *priv = dev->data->dev_private;
4184 struct rte_flow *flow = NULL;
4185 struct mlx5_flow *dev_flow;
4186 const struct rte_flow_action_rss *rss;
4188 struct rte_flow_expand_rss buf;
4189 uint8_t buffer[2048];
4192 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4193 uint8_t buffer[2048];
4196 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4197 uint8_t buffer[2048];
4198 } actions_hairpin_tx;
4200 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
4201 uint8_t buffer[2048];
4203 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
4204 const struct rte_flow_action *p_actions_rx = actions;
4207 int hairpin_flow = 0;
4208 uint32_t hairpin_id = 0;
4209 struct rte_flow_attr attr_tx = { .priority = 0 };
4210 int ret = flow_drv_validate(dev, attr, items, p_actions_rx, external,
4215 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
4216 if (hairpin_flow > 0) {
4217 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
4221 flow_hairpin_split(dev, actions, actions_rx.actions,
4222 actions_hairpin_tx.actions, items_tx.items,
4224 p_actions_rx = actions_rx.actions;
4226 flow_size = sizeof(struct rte_flow);
4227 rss = flow_get_rss_action(p_actions_rx);
4229 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
4232 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
4233 flow = rte_calloc(__func__, 1, flow_size, 0);
4236 goto error_before_flow;
4238 flow->drv_type = flow_get_drv_type(dev, attr);
4239 if (hairpin_id != 0)
4240 flow->hairpin_flow_id = hairpin_id;
4241 MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
4242 flow->drv_type < MLX5_FLOW_TYPE_MAX);
4243 flow->rss.queue = (void *)(flow + 1);
4246 * The following information is required by
4247 * mlx5_flow_hashfields_adjust() in advance.
4249 flow->rss.level = rss->level;
4250 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
4251 flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
4253 LIST_INIT(&flow->dev_flows);
4254 if (rss && rss->types) {
4255 unsigned int graph_root;
4257 graph_root = find_graph_root(items, rss->level);
4258 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
4260 mlx5_support_expansion,
4262 MLX5_ASSERT(ret > 0 &&
4263 (unsigned int)ret < sizeof(expand_buffer.buffer));
4266 buf->entry[0].pattern = (void *)(uintptr_t)items;
4268 for (i = 0; i < buf->entries; ++i) {
4270 * The splitter may create multiple dev_flows,
4271 * depending on configuration. In the simplest
4272 * case it just creates unmodified original flow.
4274 ret = flow_create_split_outer(dev, flow, attr,
4275 buf->entry[i].pattern,
4276 p_actions_rx, external,
4281 /* Create the tx flow. */
4283 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
4284 attr_tx.ingress = 0;
4286 dev_flow = flow_drv_prepare(flow, &attr_tx, items_tx.items,
4287 actions_hairpin_tx.actions, error);
4290 dev_flow->flow = flow;
4291 dev_flow->external = 0;
4292 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
4293 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
4295 actions_hairpin_tx.actions, error);
4300 * Update the metadata register copy table. If extensive
4301 * metadata feature is enabled and registers are supported
4302 * we might create the extra rte_flow for each unique
4303 * MARK/FLAG action ID.
4305 * The table is updated for ingress Flows only, because
4306 * the egress Flows belong to the different device and
4307 * copy table should be updated in peer NIC Rx domain.
4309 if (attr->ingress &&
4310 (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
4311 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
4315 if (dev->data->dev_started) {
4316 ret = flow_drv_apply(dev, flow, error);
4321 TAILQ_INSERT_TAIL(list, flow, next);
4322 flow_rxq_flags_set(dev, flow);
4326 mlx5_flow_id_release(priv->sh->flow_id_pool,
4331 flow_mreg_del_copy_action(dev, flow);
4332 ret = rte_errno; /* Save rte_errno before cleanup. */
4333 if (flow->hairpin_flow_id)
4334 mlx5_flow_id_release(priv->sh->flow_id_pool,
4335 flow->hairpin_flow_id);
4337 flow_drv_destroy(dev, flow);
4339 rte_errno = ret; /* Restore rte_errno. */
4344 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
4345 * incoming packets to table 1.
4347 * Other flow rules, requested for group n, will be created in
4348 * e-switch table n+1.
4349 * Jump action to e-switch group n will be created to group n+1.
4351 * Used when working in switchdev mode, to utilise advantages of table 1
4355 * Pointer to Ethernet device.
4358 * Pointer to flow on success, NULL otherwise and rte_errno is set.
4361 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
4363 const struct rte_flow_attr attr = {
4370 const struct rte_flow_item pattern = {
4371 .type = RTE_FLOW_ITEM_TYPE_END,
4373 struct rte_flow_action_jump jump = {
4376 const struct rte_flow_action actions[] = {
4378 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4382 .type = RTE_FLOW_ACTION_TYPE_END,
4385 struct mlx5_priv *priv = dev->data->dev_private;
4386 struct rte_flow_error error;
4388 return flow_list_create(dev, &priv->ctrl_flows, &attr, &pattern,
4389 actions, false, &error);
4395 * @see rte_flow_create()
4399 mlx5_flow_create(struct rte_eth_dev *dev,
4400 const struct rte_flow_attr *attr,
4401 const struct rte_flow_item items[],
4402 const struct rte_flow_action actions[],
4403 struct rte_flow_error *error)
4405 struct mlx5_priv *priv = dev->data->dev_private;
4407 return flow_list_create(dev, &priv->flows,
4408 attr, items, actions, true, error);
4412 * Destroy a flow in a list.
4415 * Pointer to Ethernet device.
4417 * Pointer to a TAILQ flow list. If this parameter NULL,
4418 * there is no flow removal from the list.
4423 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
4424 struct rte_flow *flow)
4426 struct mlx5_priv *priv = dev->data->dev_private;
4429 * Update RX queue flags only if port is started, otherwise it is
4432 if (dev->data->dev_started)
4433 flow_rxq_flags_trim(dev, flow);
4434 if (flow->hairpin_flow_id)
4435 mlx5_flow_id_release(priv->sh->flow_id_pool,
4436 flow->hairpin_flow_id);
4437 flow_drv_destroy(dev, flow);
4439 TAILQ_REMOVE(list, flow, next);
4440 flow_mreg_del_copy_action(dev, flow);
4441 rte_free(flow->fdir);
4446 * Destroy all flows.
4449 * Pointer to Ethernet device.
4451 * Pointer to a TAILQ flow list.
4454 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
4456 while (!TAILQ_EMPTY(list)) {
4457 struct rte_flow *flow;
4459 flow = TAILQ_FIRST(list);
4460 flow_list_destroy(dev, list, flow);
4468 * Pointer to Ethernet device.
4470 * Pointer to a TAILQ flow list.
4473 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
4475 struct rte_flow *flow;
4477 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
4478 flow_drv_remove(dev, flow);
4479 flow_mreg_stop_copy_action(dev, flow);
4481 flow_mreg_del_default_copy_action(dev);
4482 flow_rxq_flags_clear(dev);
4489 * Pointer to Ethernet device.
4491 * Pointer to a TAILQ flow list.
4494 * 0 on success, a negative errno value otherwise and rte_errno is set.
4497 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
4499 struct rte_flow *flow;
4500 struct rte_flow_error error;
4503 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
4504 ret = flow_mreg_add_default_copy_action(dev, &error);
4507 /* Apply Flows created by application. */
4508 TAILQ_FOREACH(flow, list, next) {
4509 ret = flow_mreg_start_copy_action(dev, flow);
4512 ret = flow_drv_apply(dev, flow, &error);
4515 flow_rxq_flags_set(dev, flow);
4519 ret = rte_errno; /* Save rte_errno before cleanup. */
4520 mlx5_flow_stop(dev, list);
4521 rte_errno = ret; /* Restore rte_errno. */
4526 * Verify the flow list is empty
4529 * Pointer to Ethernet device.
4531 * @return the number of flows not released.
4534 mlx5_flow_verify(struct rte_eth_dev *dev)
4536 struct mlx5_priv *priv = dev->data->dev_private;
4537 struct rte_flow *flow;
4540 TAILQ_FOREACH(flow, &priv->flows, next) {
4541 DRV_LOG(DEBUG, "port %u flow %p still referenced",
4542 dev->data->port_id, (void *)flow);
4549 * Enable default hairpin egress flow.
4552 * Pointer to Ethernet device.
4557 * 0 on success, a negative errno value otherwise and rte_errno is set.
4560 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
4563 struct mlx5_priv *priv = dev->data->dev_private;
4564 const struct rte_flow_attr attr = {
4568 struct mlx5_rte_flow_item_tx_queue queue_spec = {
4571 struct mlx5_rte_flow_item_tx_queue queue_mask = {
4572 .queue = UINT32_MAX,
4574 struct rte_flow_item items[] = {
4576 .type = MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
4577 .spec = &queue_spec,
4579 .mask = &queue_mask,
4582 .type = RTE_FLOW_ITEM_TYPE_END,
4585 struct rte_flow_action_jump jump = {
4586 .group = MLX5_HAIRPIN_TX_TABLE,
4588 struct rte_flow_action actions[2];
4589 struct rte_flow *flow;
4590 struct rte_flow_error error;
4592 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
4593 actions[0].conf = &jump;
4594 actions[1].type = RTE_FLOW_ACTION_TYPE_END;
4595 flow = flow_list_create(dev, &priv->ctrl_flows,
4596 &attr, items, actions, false, &error);
4599 "Failed to create ctrl flow: rte_errno(%d),"
4600 " type(%d), message(%s)",
4601 rte_errno, error.type,
4602 error.message ? error.message : " (no stated reason)");
4609 * Enable a control flow configured from the control plane.
4612 * Pointer to Ethernet device.
4614 * An Ethernet flow spec to apply.
4616 * An Ethernet flow mask to apply.
4618 * A VLAN flow spec to apply.
4620 * A VLAN flow mask to apply.
4623 * 0 on success, a negative errno value otherwise and rte_errno is set.
4626 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
4627 struct rte_flow_item_eth *eth_spec,
4628 struct rte_flow_item_eth *eth_mask,
4629 struct rte_flow_item_vlan *vlan_spec,
4630 struct rte_flow_item_vlan *vlan_mask)
4632 struct mlx5_priv *priv = dev->data->dev_private;
4633 const struct rte_flow_attr attr = {
4635 .priority = MLX5_FLOW_PRIO_RSVD,
4637 struct rte_flow_item items[] = {
4639 .type = RTE_FLOW_ITEM_TYPE_ETH,
4645 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
4646 RTE_FLOW_ITEM_TYPE_END,
4652 .type = RTE_FLOW_ITEM_TYPE_END,
4655 uint16_t queue[priv->reta_idx_n];
4656 struct rte_flow_action_rss action_rss = {
4657 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
4659 .types = priv->rss_conf.rss_hf,
4660 .key_len = priv->rss_conf.rss_key_len,
4661 .queue_num = priv->reta_idx_n,
4662 .key = priv->rss_conf.rss_key,
4665 struct rte_flow_action actions[] = {
4667 .type = RTE_FLOW_ACTION_TYPE_RSS,
4668 .conf = &action_rss,
4671 .type = RTE_FLOW_ACTION_TYPE_END,
4674 struct rte_flow *flow;
4675 struct rte_flow_error error;
4678 if (!priv->reta_idx_n || !priv->rxqs_n) {
4681 for (i = 0; i != priv->reta_idx_n; ++i)
4682 queue[i] = (*priv->reta_idx)[i];
4683 flow = flow_list_create(dev, &priv->ctrl_flows,
4684 &attr, items, actions, false, &error);
4691 * Enable a flow control configured from the control plane.
4694 * Pointer to Ethernet device.
4696 * An Ethernet flow spec to apply.
4698 * An Ethernet flow mask to apply.
4701 * 0 on success, a negative errno value otherwise and rte_errno is set.
4704 mlx5_ctrl_flow(struct rte_eth_dev *dev,
4705 struct rte_flow_item_eth *eth_spec,
4706 struct rte_flow_item_eth *eth_mask)
4708 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
4714 * @see rte_flow_destroy()
4718 mlx5_flow_destroy(struct rte_eth_dev *dev,
4719 struct rte_flow *flow,
4720 struct rte_flow_error *error __rte_unused)
4722 struct mlx5_priv *priv = dev->data->dev_private;
4724 flow_list_destroy(dev, &priv->flows, flow);
4729 * Destroy all flows.
4731 * @see rte_flow_flush()
4735 mlx5_flow_flush(struct rte_eth_dev *dev,
4736 struct rte_flow_error *error __rte_unused)
4738 struct mlx5_priv *priv = dev->data->dev_private;
4740 mlx5_flow_list_flush(dev, &priv->flows);
4747 * @see rte_flow_isolate()
4751 mlx5_flow_isolate(struct rte_eth_dev *dev,
4753 struct rte_flow_error *error)
4755 struct mlx5_priv *priv = dev->data->dev_private;
4757 if (dev->data->dev_started) {
4758 rte_flow_error_set(error, EBUSY,
4759 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4761 "port must be stopped first");
4764 priv->isolated = !!enable;
4766 dev->dev_ops = &mlx5_dev_ops_isolate;
4768 dev->dev_ops = &mlx5_dev_ops;
4775 * @see rte_flow_query()
4779 flow_drv_query(struct rte_eth_dev *dev,
4780 struct rte_flow *flow,
4781 const struct rte_flow_action *actions,
4783 struct rte_flow_error *error)
4785 const struct mlx5_flow_driver_ops *fops;
4786 enum mlx5_flow_drv_type ftype = flow->drv_type;
4788 MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
4789 fops = flow_get_drv_ops(ftype);
4791 return fops->query(dev, flow, actions, data, error);
4797 * @see rte_flow_query()
4801 mlx5_flow_query(struct rte_eth_dev *dev,
4802 struct rte_flow *flow,
4803 const struct rte_flow_action *actions,
4805 struct rte_flow_error *error)
4809 ret = flow_drv_query(dev, flow, actions, data, error);
4816 * Convert a flow director filter to a generic flow.
4819 * Pointer to Ethernet device.
4820 * @param fdir_filter
4821 * Flow director filter to add.
4823 * Generic flow parameters structure.
4826 * 0 on success, a negative errno value otherwise and rte_errno is set.
4829 flow_fdir_filter_convert(struct rte_eth_dev *dev,
4830 const struct rte_eth_fdir_filter *fdir_filter,
4831 struct mlx5_fdir *attributes)
4833 struct mlx5_priv *priv = dev->data->dev_private;
4834 const struct rte_eth_fdir_input *input = &fdir_filter->input;
4835 const struct rte_eth_fdir_masks *mask =
4836 &dev->data->dev_conf.fdir_conf.mask;
4838 /* Validate queue number. */
4839 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
4840 DRV_LOG(ERR, "port %u invalid queue number %d",
4841 dev->data->port_id, fdir_filter->action.rx_queue);
4845 attributes->attr.ingress = 1;
4846 attributes->items[0] = (struct rte_flow_item) {
4847 .type = RTE_FLOW_ITEM_TYPE_ETH,
4848 .spec = &attributes->l2,
4849 .mask = &attributes->l2_mask,
4851 switch (fdir_filter->action.behavior) {
4852 case RTE_ETH_FDIR_ACCEPT:
4853 attributes->actions[0] = (struct rte_flow_action){
4854 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
4855 .conf = &attributes->queue,
4858 case RTE_ETH_FDIR_REJECT:
4859 attributes->actions[0] = (struct rte_flow_action){
4860 .type = RTE_FLOW_ACTION_TYPE_DROP,
4864 DRV_LOG(ERR, "port %u invalid behavior %d",
4866 fdir_filter->action.behavior);
4867 rte_errno = ENOTSUP;
4870 attributes->queue.index = fdir_filter->action.rx_queue;
4872 switch (fdir_filter->input.flow_type) {
4873 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4874 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4875 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4876 attributes->l3.ipv4.hdr = (struct rte_ipv4_hdr){
4877 .src_addr = input->flow.ip4_flow.src_ip,
4878 .dst_addr = input->flow.ip4_flow.dst_ip,
4879 .time_to_live = input->flow.ip4_flow.ttl,
4880 .type_of_service = input->flow.ip4_flow.tos,
4882 attributes->l3_mask.ipv4.hdr = (struct rte_ipv4_hdr){
4883 .src_addr = mask->ipv4_mask.src_ip,
4884 .dst_addr = mask->ipv4_mask.dst_ip,
4885 .time_to_live = mask->ipv4_mask.ttl,
4886 .type_of_service = mask->ipv4_mask.tos,
4887 .next_proto_id = mask->ipv4_mask.proto,
4889 attributes->items[1] = (struct rte_flow_item){
4890 .type = RTE_FLOW_ITEM_TYPE_IPV4,
4891 .spec = &attributes->l3,
4892 .mask = &attributes->l3_mask,
4895 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4896 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4897 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4898 attributes->l3.ipv6.hdr = (struct rte_ipv6_hdr){
4899 .hop_limits = input->flow.ipv6_flow.hop_limits,
4900 .proto = input->flow.ipv6_flow.proto,
4903 memcpy(attributes->l3.ipv6.hdr.src_addr,
4904 input->flow.ipv6_flow.src_ip,
4905 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4906 memcpy(attributes->l3.ipv6.hdr.dst_addr,
4907 input->flow.ipv6_flow.dst_ip,
4908 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4909 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
4910 mask->ipv6_mask.src_ip,
4911 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4912 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
4913 mask->ipv6_mask.dst_ip,
4914 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4915 attributes->items[1] = (struct rte_flow_item){
4916 .type = RTE_FLOW_ITEM_TYPE_IPV6,
4917 .spec = &attributes->l3,
4918 .mask = &attributes->l3_mask,
4922 DRV_LOG(ERR, "port %u invalid flow type%d",
4923 dev->data->port_id, fdir_filter->input.flow_type);
4924 rte_errno = ENOTSUP;
4928 switch (fdir_filter->input.flow_type) {
4929 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4930 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4931 .src_port = input->flow.udp4_flow.src_port,
4932 .dst_port = input->flow.udp4_flow.dst_port,
4934 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4935 .src_port = mask->src_port_mask,
4936 .dst_port = mask->dst_port_mask,
4938 attributes->items[2] = (struct rte_flow_item){
4939 .type = RTE_FLOW_ITEM_TYPE_UDP,
4940 .spec = &attributes->l4,
4941 .mask = &attributes->l4_mask,
4944 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4945 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4946 .src_port = input->flow.tcp4_flow.src_port,
4947 .dst_port = input->flow.tcp4_flow.dst_port,
4949 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4950 .src_port = mask->src_port_mask,
4951 .dst_port = mask->dst_port_mask,
4953 attributes->items[2] = (struct rte_flow_item){
4954 .type = RTE_FLOW_ITEM_TYPE_TCP,
4955 .spec = &attributes->l4,
4956 .mask = &attributes->l4_mask,
4959 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4960 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4961 .src_port = input->flow.udp6_flow.src_port,
4962 .dst_port = input->flow.udp6_flow.dst_port,
4964 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4965 .src_port = mask->src_port_mask,
4966 .dst_port = mask->dst_port_mask,
4968 attributes->items[2] = (struct rte_flow_item){
4969 .type = RTE_FLOW_ITEM_TYPE_UDP,
4970 .spec = &attributes->l4,
4971 .mask = &attributes->l4_mask,
4974 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4975 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4976 .src_port = input->flow.tcp6_flow.src_port,
4977 .dst_port = input->flow.tcp6_flow.dst_port,
4979 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4980 .src_port = mask->src_port_mask,
4981 .dst_port = mask->dst_port_mask,
4983 attributes->items[2] = (struct rte_flow_item){
4984 .type = RTE_FLOW_ITEM_TYPE_TCP,
4985 .spec = &attributes->l4,
4986 .mask = &attributes->l4_mask,
4989 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4990 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4993 DRV_LOG(ERR, "port %u invalid flow type%d",
4994 dev->data->port_id, fdir_filter->input.flow_type);
4995 rte_errno = ENOTSUP;
5001 #define FLOW_FDIR_CMP(f1, f2, fld) \
5002 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
5005 * Compare two FDIR flows. If items and actions are identical, the two flows are
5009 * Pointer to Ethernet device.
5011 * FDIR flow to compare.
5013 * FDIR flow to compare.
5016 * Zero on match, 1 otherwise.
5019 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
5021 if (FLOW_FDIR_CMP(f1, f2, attr) ||
5022 FLOW_FDIR_CMP(f1, f2, l2) ||
5023 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
5024 FLOW_FDIR_CMP(f1, f2, l3) ||
5025 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
5026 FLOW_FDIR_CMP(f1, f2, l4) ||
5027 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
5028 FLOW_FDIR_CMP(f1, f2, actions[0].type))
5030 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
5031 FLOW_FDIR_CMP(f1, f2, queue))
5037 * Search device flow list to find out a matched FDIR flow.
5040 * Pointer to Ethernet device.
5042 * FDIR flow to lookup.
5045 * Pointer of flow if found, NULL otherwise.
5047 static struct rte_flow *
5048 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
5050 struct mlx5_priv *priv = dev->data->dev_private;
5051 struct rte_flow *flow = NULL;
5053 MLX5_ASSERT(fdir_flow);
5054 TAILQ_FOREACH(flow, &priv->flows, next) {
5055 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
5056 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
5057 dev->data->port_id, (void *)flow);
5065 * Add new flow director filter and store it in list.
5068 * Pointer to Ethernet device.
5069 * @param fdir_filter
5070 * Flow director filter to add.
5073 * 0 on success, a negative errno value otherwise and rte_errno is set.
5076 flow_fdir_filter_add(struct rte_eth_dev *dev,
5077 const struct rte_eth_fdir_filter *fdir_filter)
5079 struct mlx5_priv *priv = dev->data->dev_private;
5080 struct mlx5_fdir *fdir_flow;
5081 struct rte_flow *flow;
5084 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
5089 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
5092 flow = flow_fdir_filter_lookup(dev, fdir_flow);
5097 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
5098 fdir_flow->items, fdir_flow->actions, true,
5102 MLX5_ASSERT(!flow->fdir);
5103 flow->fdir = fdir_flow;
5104 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
5105 dev->data->port_id, (void *)flow);
5108 rte_free(fdir_flow);
5113 * Delete specific filter.
5116 * Pointer to Ethernet device.
5117 * @param fdir_filter
5118 * Filter to be deleted.
5121 * 0 on success, a negative errno value otherwise and rte_errno is set.
5124 flow_fdir_filter_delete(struct rte_eth_dev *dev,
5125 const struct rte_eth_fdir_filter *fdir_filter)
5127 struct mlx5_priv *priv = dev->data->dev_private;
5128 struct rte_flow *flow;
5129 struct mlx5_fdir fdir_flow = {
5134 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
5137 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
5142 flow_list_destroy(dev, &priv->flows, flow);
5143 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
5144 dev->data->port_id, (void *)flow);
5149 * Update queue for specific filter.
5152 * Pointer to Ethernet device.
5153 * @param fdir_filter
5154 * Filter to be updated.
5157 * 0 on success, a negative errno value otherwise and rte_errno is set.
5160 flow_fdir_filter_update(struct rte_eth_dev *dev,
5161 const struct rte_eth_fdir_filter *fdir_filter)
5165 ret = flow_fdir_filter_delete(dev, fdir_filter);
5168 return flow_fdir_filter_add(dev, fdir_filter);
5172 * Flush all filters.
5175 * Pointer to Ethernet device.
5178 flow_fdir_filter_flush(struct rte_eth_dev *dev)
5180 struct mlx5_priv *priv = dev->data->dev_private;
5182 mlx5_flow_list_flush(dev, &priv->flows);
5186 * Get flow director information.
5189 * Pointer to Ethernet device.
5190 * @param[out] fdir_info
5191 * Resulting flow director information.
5194 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
5196 struct rte_eth_fdir_masks *mask =
5197 &dev->data->dev_conf.fdir_conf.mask;
5199 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
5200 fdir_info->guarant_spc = 0;
5201 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
5202 fdir_info->max_flexpayload = 0;
5203 fdir_info->flow_types_mask[0] = 0;
5204 fdir_info->flex_payload_unit = 0;
5205 fdir_info->max_flex_payload_segment_num = 0;
5206 fdir_info->flex_payload_limit = 0;
5207 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
5211 * Deal with flow director operations.
5214 * Pointer to Ethernet device.
5216 * Operation to perform.
5218 * Pointer to operation-specific structure.
5221 * 0 on success, a negative errno value otherwise and rte_errno is set.
5224 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
5227 enum rte_fdir_mode fdir_mode =
5228 dev->data->dev_conf.fdir_conf.mode;
5230 if (filter_op == RTE_ETH_FILTER_NOP)
5232 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
5233 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
5234 DRV_LOG(ERR, "port %u flow director mode %d not supported",
5235 dev->data->port_id, fdir_mode);
5239 switch (filter_op) {
5240 case RTE_ETH_FILTER_ADD:
5241 return flow_fdir_filter_add(dev, arg);
5242 case RTE_ETH_FILTER_UPDATE:
5243 return flow_fdir_filter_update(dev, arg);
5244 case RTE_ETH_FILTER_DELETE:
5245 return flow_fdir_filter_delete(dev, arg);
5246 case RTE_ETH_FILTER_FLUSH:
5247 flow_fdir_filter_flush(dev);
5249 case RTE_ETH_FILTER_INFO:
5250 flow_fdir_info_get(dev, arg);
5253 DRV_LOG(DEBUG, "port %u unknown operation %u",
5254 dev->data->port_id, filter_op);
5262 * Manage filter operations.
5265 * Pointer to Ethernet device structure.
5266 * @param filter_type
5269 * Operation to perform.
5271 * Pointer to operation-specific structure.
5274 * 0 on success, a negative errno value otherwise and rte_errno is set.
5277 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
5278 enum rte_filter_type filter_type,
5279 enum rte_filter_op filter_op,
5282 switch (filter_type) {
5283 case RTE_ETH_FILTER_GENERIC:
5284 if (filter_op != RTE_ETH_FILTER_GET) {
5288 *(const void **)arg = &mlx5_flow_ops;
5290 case RTE_ETH_FILTER_FDIR:
5291 return flow_fdir_ctrl_func(dev, filter_op, arg);
5293 DRV_LOG(ERR, "port %u filter type (%d) not supported",
5294 dev->data->port_id, filter_type);
5295 rte_errno = ENOTSUP;
5302 * Create the needed meter and suffix tables.
5305 * Pointer to Ethernet device.
5307 * Pointer to the flow meter.
5310 * Pointer to table set on success, NULL otherwise.
5312 struct mlx5_meter_domains_infos *
5313 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
5314 const struct mlx5_flow_meter *fm)
5316 const struct mlx5_flow_driver_ops *fops;
5318 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5319 return fops->create_mtr_tbls(dev, fm);
5323 * Destroy the meter table set.
5326 * Pointer to Ethernet device.
5328 * Pointer to the meter table set.
5334 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
5335 struct mlx5_meter_domains_infos *tbls)
5337 const struct mlx5_flow_driver_ops *fops;
5339 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5340 return fops->destroy_mtr_tbls(dev, tbls);
5344 * Create policer rules.
5347 * Pointer to Ethernet device.
5349 * Pointer to flow meter structure.
5351 * Pointer to flow attributes.
5354 * 0 on success, -1 otherwise.
5357 mlx5_flow_create_policer_rules(struct rte_eth_dev *dev,
5358 struct mlx5_flow_meter *fm,
5359 const struct rte_flow_attr *attr)
5361 const struct mlx5_flow_driver_ops *fops;
5363 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5364 return fops->create_policer_rules(dev, fm, attr);
5368 * Destroy policer rules.
5371 * Pointer to flow meter structure.
5373 * Pointer to flow attributes.
5376 * 0 on success, -1 otherwise.
5379 mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev,
5380 struct mlx5_flow_meter *fm,
5381 const struct rte_flow_attr *attr)
5383 const struct mlx5_flow_driver_ops *fops;
5385 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5386 return fops->destroy_policer_rules(dev, fm, attr);
5390 * Allocate a counter.
5393 * Pointer to Ethernet device structure.
5396 * Pointer to allocated counter on success, NULL otherwise.
5398 struct mlx5_flow_counter *
5399 mlx5_counter_alloc(struct rte_eth_dev *dev)
5401 const struct mlx5_flow_driver_ops *fops;
5402 struct rte_flow_attr attr = { .transfer = 0 };
5404 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5405 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5406 return fops->counter_alloc(dev);
5409 "port %u counter allocate is not supported.",
5410 dev->data->port_id);
5418 * Pointer to Ethernet device structure.
5420 * Pointer to counter to be free.
5423 mlx5_counter_free(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt)
5425 const struct mlx5_flow_driver_ops *fops;
5426 struct rte_flow_attr attr = { .transfer = 0 };
5428 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5429 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5430 fops->counter_free(dev, cnt);
5434 "port %u counter free is not supported.",
5435 dev->data->port_id);
5439 * Query counter statistics.
5442 * Pointer to Ethernet device structure.
5444 * Pointer to counter to query.
5446 * Set to clear counter statistics.
5448 * The counter hits packets number to save.
5450 * The counter hits bytes number to save.
5453 * 0 on success, a negative errno value otherwise.
5456 mlx5_counter_query(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt,
5457 bool clear, uint64_t *pkts, uint64_t *bytes)
5459 const struct mlx5_flow_driver_ops *fops;
5460 struct rte_flow_attr attr = { .transfer = 0 };
5462 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5463 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5464 return fops->counter_query(dev, cnt, clear, pkts, bytes);
5467 "port %u counter query is not supported.",
5468 dev->data->port_id);
5472 #define MLX5_POOL_QUERY_FREQ_US 1000000
5475 * Set the periodic procedure for triggering asynchronous batch queries for all
5476 * the counter pools.
5479 * Pointer to mlx5_ibv_shared object.
5482 mlx5_set_query_alarm(struct mlx5_ibv_shared *sh)
5484 struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(sh, 0, 0);
5485 uint32_t pools_n = rte_atomic16_read(&cont->n_valid);
5488 cont = MLX5_CNT_CONTAINER(sh, 1, 0);
5489 pools_n += rte_atomic16_read(&cont->n_valid);
5490 us = MLX5_POOL_QUERY_FREQ_US / pools_n;
5491 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
5492 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
5493 sh->cmng.query_thread_on = 0;
5494 DRV_LOG(ERR, "Cannot reinitialize query alarm");
5496 sh->cmng.query_thread_on = 1;
5501 * The periodic procedure for triggering asynchronous batch queries for all the
5502 * counter pools. This function is probably called by the host thread.
5505 * The parameter for the alarm process.
5508 mlx5_flow_query_alarm(void *arg)
5510 struct mlx5_ibv_shared *sh = arg;
5511 struct mlx5_devx_obj *dcs;
5514 uint8_t batch = sh->cmng.batch;
5515 uint16_t pool_index = sh->cmng.pool_index;
5516 struct mlx5_pools_container *cont;
5517 struct mlx5_pools_container *mcont;
5518 struct mlx5_flow_counter_pool *pool;
5520 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
5523 cont = MLX5_CNT_CONTAINER(sh, batch, 1);
5524 mcont = MLX5_CNT_CONTAINER(sh, batch, 0);
5525 /* Check if resize was done and need to flip a container. */
5526 if (cont != mcont) {
5528 /* Clean the old container. */
5529 rte_free(cont->pools);
5530 memset(cont, 0, sizeof(*cont));
5533 /* Flip the host container. */
5534 sh->cmng.mhi[batch] ^= (uint8_t)2;
5538 /* 2 empty containers case is unexpected. */
5539 if (unlikely(batch != sh->cmng.batch))
5543 goto next_container;
5545 pool = cont->pools[pool_index];
5547 /* There is a pool query in progress. */
5550 LIST_FIRST(&sh->cmng.free_stat_raws);
5552 /* No free counter statistics raw memory. */
5554 dcs = (struct mlx5_devx_obj *)(uintptr_t)rte_atomic64_read
5556 offset = batch ? 0 : dcs->id % MLX5_COUNTERS_PER_POOL;
5557 ret = mlx5_devx_cmd_flow_counter_query(dcs, 0, MLX5_COUNTERS_PER_POOL -
5559 pool->raw_hw->mem_mng->dm->id,
5561 (pool->raw_hw->data + offset),
5563 (uint64_t)(uintptr_t)pool);
5565 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
5566 " %d", pool->min_dcs->id);
5567 pool->raw_hw = NULL;
5570 pool->raw_hw->min_dcs_id = dcs->id;
5571 LIST_REMOVE(pool->raw_hw, next);
5572 sh->cmng.pending_queries++;
5574 if (pool_index >= rte_atomic16_read(&cont->n_valid)) {
5579 sh->cmng.batch = batch;
5580 sh->cmng.pool_index = pool_index;
5581 mlx5_set_query_alarm(sh);
5585 * Handler for the HW respond about ready values from an asynchronous batch
5586 * query. This function is probably called by the host thread.
5589 * The pointer to the shared IB device context.
5590 * @param[in] async_id
5591 * The Devx async ID.
5593 * The status of the completion.
5596 mlx5_flow_async_pool_query_handle(struct mlx5_ibv_shared *sh,
5597 uint64_t async_id, int status)
5599 struct mlx5_flow_counter_pool *pool =
5600 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
5601 struct mlx5_counter_stats_raw *raw_to_free;
5603 if (unlikely(status)) {
5604 raw_to_free = pool->raw_hw;
5606 raw_to_free = pool->raw;
5607 rte_spinlock_lock(&pool->sl);
5608 pool->raw = pool->raw_hw;
5609 rte_spinlock_unlock(&pool->sl);
5610 rte_atomic64_add(&pool->query_gen, 1);
5611 /* Be sure the new raw counters data is updated in memory. */
5614 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
5615 pool->raw_hw = NULL;
5616 sh->cmng.pending_queries--;
5620 * Translate the rte_flow group index to HW table value.
5622 * @param[in] attributes
5623 * Pointer to flow attributes
5624 * @param[in] external
5625 * Value is part of flow rule created by request external to PMD.
5627 * rte_flow group index value.
5628 * @param[out] fdb_def_rule
5629 * Whether fdb jump to table 1 is configured.
5633 * Pointer to error structure.
5636 * 0 on success, a negative errno value otherwise and rte_errno is set.
5639 mlx5_flow_group_to_table(const struct rte_flow_attr *attributes, bool external,
5640 uint32_t group, bool fdb_def_rule, uint32_t *table,
5641 struct rte_flow_error *error)
5643 if (attributes->transfer && external && fdb_def_rule) {
5644 if (group == UINT32_MAX)
5645 return rte_flow_error_set
5647 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
5649 "group index not supported");
5658 * Discover availability of metadata reg_c's.
5660 * Iteratively use test flows to check availability.
5663 * Pointer to the Ethernet device structure.
5666 * 0 on success, a negative errno value otherwise and rte_errno is set.
5669 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
5671 struct mlx5_priv *priv = dev->data->dev_private;
5672 struct mlx5_dev_config *config = &priv->config;
5673 enum modify_reg idx;
5676 /* reg_c[0] and reg_c[1] are reserved. */
5677 config->flow_mreg_c[n++] = REG_C_0;
5678 config->flow_mreg_c[n++] = REG_C_1;
5679 /* Discover availability of other reg_c's. */
5680 for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
5681 struct rte_flow_attr attr = {
5682 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
5683 .priority = MLX5_FLOW_PRIO_RSVD,
5686 struct rte_flow_item items[] = {
5688 .type = RTE_FLOW_ITEM_TYPE_END,
5691 struct rte_flow_action actions[] = {
5693 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5694 .conf = &(struct mlx5_flow_action_copy_mreg){
5700 .type = RTE_FLOW_ACTION_TYPE_JUMP,
5701 .conf = &(struct rte_flow_action_jump){
5702 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5706 .type = RTE_FLOW_ACTION_TYPE_END,
5709 struct rte_flow *flow;
5710 struct rte_flow_error error;
5712 if (!config->dv_flow_en)
5714 /* Create internal flow, validation skips copy action. */
5715 flow = flow_list_create(dev, NULL, &attr, items,
5716 actions, false, &error);
5719 if (dev->data->dev_started || !flow_drv_apply(dev, flow, NULL))
5720 config->flow_mreg_c[n++] = idx;
5721 flow_list_destroy(dev, NULL, flow);
5723 for (; n < MLX5_MREG_C_NUM; ++n)
5724 config->flow_mreg_c[n] = REG_NONE;
5729 * Dump flow raw hw data to file
5732 * The pointer to Ethernet device.
5734 * A pointer to a file for output.
5736 * Perform verbose error reporting if not NULL. PMDs initialize this
5737 * structure in case of error only.
5739 * 0 on success, a nagative value otherwise.
5742 mlx5_flow_dev_dump(struct rte_eth_dev *dev,
5744 struct rte_flow_error *error __rte_unused)
5746 struct mlx5_priv *priv = dev->data->dev_private;
5747 struct mlx5_ibv_shared *sh = priv->sh;
5749 return mlx5_devx_cmd_flow_dump(sh->fdb_domain, sh->rx_domain,
5750 sh->tx_domain, file);