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, };
1839 uint32_t vlan_id = 0;
1842 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1843 return rte_flow_error_set(error, ENOTSUP,
1844 RTE_FLOW_ERROR_TYPE_ITEM, item,
1845 "multiple tunnel layers not"
1848 * Verify only UDPv4 is present as defined in
1849 * https://tools.ietf.org/html/rfc7348
1851 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1852 return rte_flow_error_set(error, EINVAL,
1853 RTE_FLOW_ERROR_TYPE_ITEM, item,
1854 "no outer UDP layer found");
1856 mask = &rte_flow_item_vxlan_mask;
1857 ret = mlx5_flow_item_acceptable
1858 (item, (const uint8_t *)mask,
1859 (const uint8_t *)&rte_flow_item_vxlan_mask,
1860 sizeof(struct rte_flow_item_vxlan),
1865 memcpy(&id.vni[1], spec->vni, 3);
1866 vlan_id = id.vlan_id;
1867 memcpy(&id.vni[1], mask->vni, 3);
1868 vlan_id &= id.vlan_id;
1871 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if
1872 * only this layer is defined in the Verbs specification it is
1873 * interpreted as wildcard and all packets will match this
1874 * rule, if it follows a full stack layer (ex: eth / ipv4 /
1875 * udp), all packets matching the layers before will also
1876 * match this rule. To avoid such situation, VNI 0 is
1877 * currently refused.
1880 return rte_flow_error_set(error, ENOTSUP,
1881 RTE_FLOW_ERROR_TYPE_ITEM, item,
1882 "VXLAN vni cannot be 0");
1883 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1884 return rte_flow_error_set(error, ENOTSUP,
1885 RTE_FLOW_ERROR_TYPE_ITEM, item,
1886 "VXLAN tunnel must be fully defined");
1891 * Validate VXLAN_GPE item.
1894 * Item specification.
1895 * @param[in] item_flags
1896 * Bit-fields that holds the items detected until now.
1898 * Pointer to the private data structure.
1899 * @param[in] target_protocol
1900 * The next protocol in the previous item.
1902 * Pointer to error structure.
1905 * 0 on success, a negative errno value otherwise and rte_errno is set.
1908 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1909 uint64_t item_flags,
1910 struct rte_eth_dev *dev,
1911 struct rte_flow_error *error)
1913 struct mlx5_priv *priv = dev->data->dev_private;
1914 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1915 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1920 } id = { .vlan_id = 0, };
1921 uint32_t vlan_id = 0;
1923 if (!priv->config.l3_vxlan_en)
1924 return rte_flow_error_set(error, ENOTSUP,
1925 RTE_FLOW_ERROR_TYPE_ITEM, item,
1926 "L3 VXLAN is not enabled by device"
1927 " parameter and/or not configured in"
1929 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1930 return rte_flow_error_set(error, ENOTSUP,
1931 RTE_FLOW_ERROR_TYPE_ITEM, item,
1932 "multiple tunnel layers not"
1935 * Verify only UDPv4 is present as defined in
1936 * https://tools.ietf.org/html/rfc7348
1938 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1939 return rte_flow_error_set(error, EINVAL,
1940 RTE_FLOW_ERROR_TYPE_ITEM, item,
1941 "no outer UDP layer found");
1943 mask = &rte_flow_item_vxlan_gpe_mask;
1944 ret = mlx5_flow_item_acceptable
1945 (item, (const uint8_t *)mask,
1946 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1947 sizeof(struct rte_flow_item_vxlan_gpe),
1953 return rte_flow_error_set(error, ENOTSUP,
1954 RTE_FLOW_ERROR_TYPE_ITEM,
1956 "VxLAN-GPE protocol"
1958 memcpy(&id.vni[1], spec->vni, 3);
1959 vlan_id = id.vlan_id;
1960 memcpy(&id.vni[1], mask->vni, 3);
1961 vlan_id &= id.vlan_id;
1964 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1965 * layer is defined in the Verbs specification it is interpreted as
1966 * wildcard and all packets will match this rule, if it follows a full
1967 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1968 * before will also match this rule. To avoid such situation, VNI 0
1969 * is currently refused.
1972 return rte_flow_error_set(error, ENOTSUP,
1973 RTE_FLOW_ERROR_TYPE_ITEM, item,
1974 "VXLAN-GPE vni cannot be 0");
1975 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1976 return rte_flow_error_set(error, ENOTSUP,
1977 RTE_FLOW_ERROR_TYPE_ITEM, item,
1978 "VXLAN-GPE tunnel must be fully"
1983 * Validate GRE Key item.
1986 * Item specification.
1987 * @param[in] item_flags
1988 * Bit flags to mark detected items.
1989 * @param[in] gre_item
1990 * Pointer to gre_item
1992 * Pointer to error structure.
1995 * 0 on success, a negative errno value otherwise and rte_errno is set.
1998 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
1999 uint64_t item_flags,
2000 const struct rte_flow_item *gre_item,
2001 struct rte_flow_error *error)
2003 const rte_be32_t *mask = item->mask;
2005 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
2006 const struct rte_flow_item_gre *gre_spec;
2007 const struct rte_flow_item_gre *gre_mask;
2009 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
2010 return rte_flow_error_set(error, ENOTSUP,
2011 RTE_FLOW_ERROR_TYPE_ITEM, item,
2012 "Multiple GRE key not support");
2013 if (!(item_flags & MLX5_FLOW_LAYER_GRE))
2014 return rte_flow_error_set(error, ENOTSUP,
2015 RTE_FLOW_ERROR_TYPE_ITEM, item,
2016 "No preceding GRE header");
2017 if (item_flags & MLX5_FLOW_LAYER_INNER)
2018 return rte_flow_error_set(error, ENOTSUP,
2019 RTE_FLOW_ERROR_TYPE_ITEM, item,
2020 "GRE key following a wrong item");
2021 gre_mask = gre_item->mask;
2023 gre_mask = &rte_flow_item_gre_mask;
2024 gre_spec = gre_item->spec;
2025 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
2026 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
2027 return rte_flow_error_set(error, EINVAL,
2028 RTE_FLOW_ERROR_TYPE_ITEM, item,
2029 "Key bit must be on");
2032 mask = &gre_key_default_mask;
2033 ret = mlx5_flow_item_acceptable
2034 (item, (const uint8_t *)mask,
2035 (const uint8_t *)&gre_key_default_mask,
2036 sizeof(rte_be32_t), error);
2041 * Validate GRE item.
2044 * Item specification.
2045 * @param[in] item_flags
2046 * Bit flags to mark detected items.
2047 * @param[in] target_protocol
2048 * The next protocol in the previous item.
2050 * Pointer to error structure.
2053 * 0 on success, a negative errno value otherwise and rte_errno is set.
2056 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2057 uint64_t item_flags,
2058 uint8_t target_protocol,
2059 struct rte_flow_error *error)
2061 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2062 const struct rte_flow_item_gre *mask = item->mask;
2064 const struct rte_flow_item_gre nic_mask = {
2065 .c_rsvd0_ver = RTE_BE16(0xB000),
2066 .protocol = RTE_BE16(UINT16_MAX),
2069 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2070 return rte_flow_error_set(error, EINVAL,
2071 RTE_FLOW_ERROR_TYPE_ITEM, item,
2072 "protocol filtering not compatible"
2073 " with this GRE layer");
2074 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2075 return rte_flow_error_set(error, ENOTSUP,
2076 RTE_FLOW_ERROR_TYPE_ITEM, item,
2077 "multiple tunnel layers not"
2079 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2080 return rte_flow_error_set(error, ENOTSUP,
2081 RTE_FLOW_ERROR_TYPE_ITEM, item,
2082 "L3 Layer is missing");
2084 mask = &rte_flow_item_gre_mask;
2085 ret = mlx5_flow_item_acceptable
2086 (item, (const uint8_t *)mask,
2087 (const uint8_t *)&nic_mask,
2088 sizeof(struct rte_flow_item_gre), error);
2091 #ifndef HAVE_MLX5DV_DR
2092 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2093 if (spec && (spec->protocol & mask->protocol))
2094 return rte_flow_error_set(error, ENOTSUP,
2095 RTE_FLOW_ERROR_TYPE_ITEM, item,
2096 "without MPLS support the"
2097 " specification cannot be used for"
2105 * Validate Geneve item.
2108 * Item specification.
2109 * @param[in] itemFlags
2110 * Bit-fields that holds the items detected until now.
2112 * Pointer to the private data structure.
2114 * Pointer to error structure.
2117 * 0 on success, a negative errno value otherwise and rte_errno is set.
2121 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2122 uint64_t item_flags,
2123 struct rte_eth_dev *dev,
2124 struct rte_flow_error *error)
2126 struct mlx5_priv *priv = dev->data->dev_private;
2127 const struct rte_flow_item_geneve *spec = item->spec;
2128 const struct rte_flow_item_geneve *mask = item->mask;
2131 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2132 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2133 const struct rte_flow_item_geneve nic_mask = {
2134 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2135 .vni = "\xff\xff\xff",
2136 .protocol = RTE_BE16(UINT16_MAX),
2139 if (!priv->config.hca_attr.tunnel_stateless_geneve_rx)
2140 return rte_flow_error_set(error, ENOTSUP,
2141 RTE_FLOW_ERROR_TYPE_ITEM, item,
2142 "L3 Geneve is not enabled by device"
2143 " parameter and/or not configured in"
2145 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2146 return rte_flow_error_set(error, ENOTSUP,
2147 RTE_FLOW_ERROR_TYPE_ITEM, item,
2148 "multiple tunnel layers not"
2151 * Verify only UDPv4 is present as defined in
2152 * https://tools.ietf.org/html/rfc7348
2154 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2155 return rte_flow_error_set(error, EINVAL,
2156 RTE_FLOW_ERROR_TYPE_ITEM, item,
2157 "no outer UDP layer found");
2159 mask = &rte_flow_item_geneve_mask;
2160 ret = mlx5_flow_item_acceptable
2161 (item, (const uint8_t *)mask,
2162 (const uint8_t *)&nic_mask,
2163 sizeof(struct rte_flow_item_geneve), error);
2167 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2168 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2169 MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2170 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2171 return rte_flow_error_set(error, ENOTSUP,
2172 RTE_FLOW_ERROR_TYPE_ITEM,
2174 "Geneve protocol unsupported"
2175 " fields are being used");
2176 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2177 return rte_flow_error_set
2179 RTE_FLOW_ERROR_TYPE_ITEM,
2181 "Unsupported Geneve options length");
2183 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2184 return rte_flow_error_set
2186 RTE_FLOW_ERROR_TYPE_ITEM, item,
2187 "Geneve tunnel must be fully defined");
2192 * Validate MPLS item.
2195 * Pointer to the rte_eth_dev structure.
2197 * Item specification.
2198 * @param[in] item_flags
2199 * Bit-fields that holds the items detected until now.
2200 * @param[in] prev_layer
2201 * The protocol layer indicated in previous item.
2203 * Pointer to error structure.
2206 * 0 on success, a negative errno value otherwise and rte_errno is set.
2209 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
2210 const struct rte_flow_item *item __rte_unused,
2211 uint64_t item_flags __rte_unused,
2212 uint64_t prev_layer __rte_unused,
2213 struct rte_flow_error *error)
2215 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
2216 const struct rte_flow_item_mpls *mask = item->mask;
2217 struct mlx5_priv *priv = dev->data->dev_private;
2220 if (!priv->config.mpls_en)
2221 return rte_flow_error_set(error, ENOTSUP,
2222 RTE_FLOW_ERROR_TYPE_ITEM, item,
2223 "MPLS not supported or"
2224 " disabled in firmware"
2226 /* MPLS over IP, UDP, GRE is allowed */
2227 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
2228 MLX5_FLOW_LAYER_OUTER_L4_UDP |
2229 MLX5_FLOW_LAYER_GRE)))
2230 return rte_flow_error_set(error, EINVAL,
2231 RTE_FLOW_ERROR_TYPE_ITEM, item,
2232 "protocol filtering not compatible"
2233 " with MPLS layer");
2234 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
2235 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
2236 !(item_flags & MLX5_FLOW_LAYER_GRE))
2237 return rte_flow_error_set(error, ENOTSUP,
2238 RTE_FLOW_ERROR_TYPE_ITEM, item,
2239 "multiple tunnel layers not"
2242 mask = &rte_flow_item_mpls_mask;
2243 ret = mlx5_flow_item_acceptable
2244 (item, (const uint8_t *)mask,
2245 (const uint8_t *)&rte_flow_item_mpls_mask,
2246 sizeof(struct rte_flow_item_mpls), error);
2251 return rte_flow_error_set(error, ENOTSUP,
2252 RTE_FLOW_ERROR_TYPE_ITEM, item,
2253 "MPLS is not supported by Verbs, please"
2258 * Validate NVGRE item.
2261 * Item specification.
2262 * @param[in] item_flags
2263 * Bit flags to mark detected items.
2264 * @param[in] target_protocol
2265 * The next protocol in the previous item.
2267 * Pointer to error structure.
2270 * 0 on success, a negative errno value otherwise and rte_errno is set.
2273 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
2274 uint64_t item_flags,
2275 uint8_t target_protocol,
2276 struct rte_flow_error *error)
2278 const struct rte_flow_item_nvgre *mask = item->mask;
2281 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2282 return rte_flow_error_set(error, EINVAL,
2283 RTE_FLOW_ERROR_TYPE_ITEM, item,
2284 "protocol filtering not compatible"
2285 " with this GRE layer");
2286 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2287 return rte_flow_error_set(error, ENOTSUP,
2288 RTE_FLOW_ERROR_TYPE_ITEM, item,
2289 "multiple tunnel layers not"
2291 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2292 return rte_flow_error_set(error, ENOTSUP,
2293 RTE_FLOW_ERROR_TYPE_ITEM, item,
2294 "L3 Layer is missing");
2296 mask = &rte_flow_item_nvgre_mask;
2297 ret = mlx5_flow_item_acceptable
2298 (item, (const uint8_t *)mask,
2299 (const uint8_t *)&rte_flow_item_nvgre_mask,
2300 sizeof(struct rte_flow_item_nvgre), error);
2306 /* Allocate unique ID for the split Q/RSS subflows. */
2308 flow_qrss_get_id(struct rte_eth_dev *dev)
2310 struct mlx5_priv *priv = dev->data->dev_private;
2311 uint32_t qrss_id, ret;
2313 ret = mlx5_flow_id_get(priv->qrss_id_pool, &qrss_id);
2316 MLX5_ASSERT(qrss_id);
2320 /* Free unique ID for the split Q/RSS subflows. */
2322 flow_qrss_free_id(struct rte_eth_dev *dev, uint32_t qrss_id)
2324 struct mlx5_priv *priv = dev->data->dev_private;
2327 mlx5_flow_id_release(priv->qrss_id_pool, qrss_id);
2331 * Release resource related QUEUE/RSS action split.
2334 * Pointer to Ethernet device.
2336 * Flow to release id's from.
2339 flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
2340 struct rte_flow *flow)
2342 struct mlx5_flow *dev_flow;
2344 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
2345 if (dev_flow->qrss_id)
2346 flow_qrss_free_id(dev, dev_flow->qrss_id);
2350 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
2351 const struct rte_flow_attr *attr __rte_unused,
2352 const struct rte_flow_item items[] __rte_unused,
2353 const struct rte_flow_action actions[] __rte_unused,
2354 bool external __rte_unused,
2355 struct rte_flow_error *error)
2357 return rte_flow_error_set(error, ENOTSUP,
2358 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2361 static struct mlx5_flow *
2362 flow_null_prepare(const struct rte_flow_attr *attr __rte_unused,
2363 const struct rte_flow_item items[] __rte_unused,
2364 const struct rte_flow_action actions[] __rte_unused,
2365 struct rte_flow_error *error)
2367 rte_flow_error_set(error, ENOTSUP,
2368 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2373 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
2374 struct mlx5_flow *dev_flow __rte_unused,
2375 const struct rte_flow_attr *attr __rte_unused,
2376 const struct rte_flow_item items[] __rte_unused,
2377 const struct rte_flow_action actions[] __rte_unused,
2378 struct rte_flow_error *error)
2380 return rte_flow_error_set(error, ENOTSUP,
2381 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2385 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
2386 struct rte_flow *flow __rte_unused,
2387 struct rte_flow_error *error)
2389 return rte_flow_error_set(error, ENOTSUP,
2390 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2394 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
2395 struct rte_flow *flow __rte_unused)
2400 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
2401 struct rte_flow *flow __rte_unused)
2406 flow_null_query(struct rte_eth_dev *dev __rte_unused,
2407 struct rte_flow *flow __rte_unused,
2408 const struct rte_flow_action *actions __rte_unused,
2409 void *data __rte_unused,
2410 struct rte_flow_error *error)
2412 return rte_flow_error_set(error, ENOTSUP,
2413 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2416 /* Void driver to protect from null pointer reference. */
2417 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
2418 .validate = flow_null_validate,
2419 .prepare = flow_null_prepare,
2420 .translate = flow_null_translate,
2421 .apply = flow_null_apply,
2422 .remove = flow_null_remove,
2423 .destroy = flow_null_destroy,
2424 .query = flow_null_query,
2428 * Select flow driver type according to flow attributes and device
2432 * Pointer to the dev structure.
2434 * Pointer to the flow attributes.
2437 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
2439 static enum mlx5_flow_drv_type
2440 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
2442 struct mlx5_priv *priv = dev->data->dev_private;
2443 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
2445 if (attr->transfer && priv->config.dv_esw_en)
2446 type = MLX5_FLOW_TYPE_DV;
2447 if (!attr->transfer)
2448 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
2449 MLX5_FLOW_TYPE_VERBS;
2453 #define flow_get_drv_ops(type) flow_drv_ops[type]
2456 * Flow driver validation API. This abstracts calling driver specific functions.
2457 * The type of flow driver is determined according to flow attributes.
2460 * Pointer to the dev structure.
2462 * Pointer to the flow attributes.
2464 * Pointer to the list of items.
2465 * @param[in] actions
2466 * Pointer to the list of actions.
2467 * @param[in] external
2468 * This flow rule is created by request external to PMD.
2470 * Pointer to the error structure.
2473 * 0 on success, a negative errno value otherwise and rte_errno is set.
2476 flow_drv_validate(struct rte_eth_dev *dev,
2477 const struct rte_flow_attr *attr,
2478 const struct rte_flow_item items[],
2479 const struct rte_flow_action actions[],
2480 bool external, struct rte_flow_error *error)
2482 const struct mlx5_flow_driver_ops *fops;
2483 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
2485 fops = flow_get_drv_ops(type);
2486 return fops->validate(dev, attr, items, actions, external, error);
2490 * Flow driver preparation API. This abstracts calling driver specific
2491 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2492 * calculates the size of memory required for device flow, allocates the memory,
2493 * initializes the device flow and returns the pointer.
2496 * This function initializes device flow structure such as dv or verbs in
2497 * struct mlx5_flow. However, it is caller's responsibility to initialize the
2498 * rest. For example, adding returning device flow to flow->dev_flow list and
2499 * setting backward reference to the flow should be done out of this function.
2500 * layers field is not filled either.
2503 * Pointer to the flow attributes.
2505 * Pointer to the list of items.
2506 * @param[in] actions
2507 * Pointer to the list of actions.
2509 * Pointer to the error structure.
2512 * Pointer to device flow on success, otherwise NULL and rte_errno is set.
2514 static inline struct mlx5_flow *
2515 flow_drv_prepare(const struct rte_flow *flow,
2516 const struct rte_flow_attr *attr,
2517 const struct rte_flow_item items[],
2518 const struct rte_flow_action actions[],
2519 struct rte_flow_error *error)
2521 const struct mlx5_flow_driver_ops *fops;
2522 enum mlx5_flow_drv_type type = flow->drv_type;
2524 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2525 fops = flow_get_drv_ops(type);
2526 return fops->prepare(attr, items, actions, error);
2530 * Flow driver translation API. This abstracts calling driver specific
2531 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2532 * translates a generic flow into a driver flow. flow_drv_prepare() must
2536 * dev_flow->layers could be filled as a result of parsing during translation
2537 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
2538 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
2539 * flow->actions could be overwritten even though all the expanded dev_flows
2540 * have the same actions.
2543 * Pointer to the rte dev structure.
2544 * @param[in, out] dev_flow
2545 * Pointer to the mlx5 flow.
2547 * Pointer to the flow attributes.
2549 * Pointer to the list of items.
2550 * @param[in] actions
2551 * Pointer to the list of actions.
2553 * Pointer to the error structure.
2556 * 0 on success, a negative errno value otherwise and rte_errno is set.
2559 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
2560 const struct rte_flow_attr *attr,
2561 const struct rte_flow_item items[],
2562 const struct rte_flow_action actions[],
2563 struct rte_flow_error *error)
2565 const struct mlx5_flow_driver_ops *fops;
2566 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
2568 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2569 fops = flow_get_drv_ops(type);
2570 return fops->translate(dev, dev_flow, attr, items, actions, error);
2574 * Flow driver apply API. This abstracts calling driver specific functions.
2575 * Parent flow (rte_flow) should have driver type (drv_type). It applies
2576 * translated driver flows on to device. flow_drv_translate() must precede.
2579 * Pointer to Ethernet device structure.
2580 * @param[in, out] flow
2581 * Pointer to flow structure.
2583 * Pointer to error structure.
2586 * 0 on success, a negative errno value otherwise and rte_errno is set.
2589 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
2590 struct rte_flow_error *error)
2592 const struct mlx5_flow_driver_ops *fops;
2593 enum mlx5_flow_drv_type type = flow->drv_type;
2595 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2596 fops = flow_get_drv_ops(type);
2597 return fops->apply(dev, flow, error);
2601 * Flow driver remove API. This abstracts calling driver specific functions.
2602 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2603 * on device. All the resources of the flow should be freed by calling
2604 * flow_drv_destroy().
2607 * Pointer to Ethernet device.
2608 * @param[in, out] flow
2609 * Pointer to flow structure.
2612 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
2614 const struct mlx5_flow_driver_ops *fops;
2615 enum mlx5_flow_drv_type type = flow->drv_type;
2617 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2618 fops = flow_get_drv_ops(type);
2619 fops->remove(dev, flow);
2623 * Flow driver destroy API. This abstracts calling driver specific functions.
2624 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2625 * on device and releases resources of the flow.
2628 * Pointer to Ethernet device.
2629 * @param[in, out] flow
2630 * Pointer to flow structure.
2633 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
2635 const struct mlx5_flow_driver_ops *fops;
2636 enum mlx5_flow_drv_type type = flow->drv_type;
2638 flow_mreg_split_qrss_release(dev, flow);
2639 MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2640 fops = flow_get_drv_ops(type);
2641 fops->destroy(dev, flow);
2645 * Validate a flow supported by the NIC.
2647 * @see rte_flow_validate()
2651 mlx5_flow_validate(struct rte_eth_dev *dev,
2652 const struct rte_flow_attr *attr,
2653 const struct rte_flow_item items[],
2654 const struct rte_flow_action actions[],
2655 struct rte_flow_error *error)
2659 ret = flow_drv_validate(dev, attr, items, actions, true, error);
2666 * Get RSS action from the action list.
2668 * @param[in] actions
2669 * Pointer to the list of actions.
2672 * Pointer to the RSS action if exist, else return NULL.
2674 static const struct rte_flow_action_rss*
2675 flow_get_rss_action(const struct rte_flow_action actions[])
2677 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2678 switch (actions->type) {
2679 case RTE_FLOW_ACTION_TYPE_RSS:
2680 return (const struct rte_flow_action_rss *)
2690 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2692 const struct rte_flow_item *item;
2693 unsigned int has_vlan = 0;
2695 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2696 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2702 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2703 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2704 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2705 MLX5_EXPANSION_ROOT_OUTER;
2709 * Get layer flags from the prefix flow.
2711 * Some flows may be split to several subflows, the prefix subflow gets the
2712 * match items and the suffix sub flow gets the actions.
2713 * Some actions need the user defined match item flags to get the detail for
2715 * This function helps the suffix flow to get the item layer flags from prefix
2718 * @param[in] dev_flow
2719 * Pointer the created preifx subflow.
2722 * The layers get from prefix subflow.
2724 static inline uint64_t
2725 flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow)
2727 uint64_t layers = 0;
2729 /* If no decap actions, use the layers directly. */
2730 if (!(dev_flow->actions & MLX5_FLOW_ACTION_DECAP))
2731 return dev_flow->layers;
2732 /* Convert L3 layers with decap action. */
2733 if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4)
2734 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4;
2735 else if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6)
2736 layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6;
2737 /* Convert L4 layers with decap action. */
2738 if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L4_TCP)
2739 layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
2740 else if (dev_flow->layers & MLX5_FLOW_LAYER_INNER_L4_UDP)
2741 layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP;
2746 * Get metadata split action information.
2748 * @param[in] actions
2749 * Pointer to the list of actions.
2751 * Pointer to the return pointer.
2752 * @param[out] qrss_type
2753 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
2754 * if no QUEUE/RSS is found.
2755 * @param[out] encap_idx
2756 * Pointer to the index of the encap action if exists, otherwise the last
2760 * Total number of actions.
2763 flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[],
2764 const struct rte_flow_action **qrss,
2767 const struct rte_flow_action_raw_encap *raw_encap;
2769 int raw_decap_idx = -1;
2772 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2773 switch (actions->type) {
2774 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2775 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2776 *encap_idx = actions_n;
2778 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
2779 raw_decap_idx = actions_n;
2781 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2782 raw_encap = actions->conf;
2783 if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
2784 *encap_idx = raw_decap_idx != -1 ?
2785 raw_decap_idx : actions_n;
2787 case RTE_FLOW_ACTION_TYPE_QUEUE:
2788 case RTE_FLOW_ACTION_TYPE_RSS:
2796 if (*encap_idx == -1)
2797 *encap_idx = actions_n;
2798 /* Count RTE_FLOW_ACTION_TYPE_END. */
2799 return actions_n + 1;
2803 * Check meter action from the action list.
2805 * @param[in] actions
2806 * Pointer to the list of actions.
2808 * Pointer to the meter exist flag.
2811 * Total number of actions.
2814 flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr)
2820 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2821 switch (actions->type) {
2822 case RTE_FLOW_ACTION_TYPE_METER:
2830 /* Count RTE_FLOW_ACTION_TYPE_END. */
2831 return actions_n + 1;
2835 * Check if the flow should be splited due to hairpin.
2836 * The reason for the split is that in current HW we can't
2837 * support encap on Rx, so if a flow have encap we move it
2841 * Pointer to Ethernet device.
2843 * Flow rule attributes.
2844 * @param[in] actions
2845 * Associated actions (list terminated by the END action).
2848 * > 0 the number of actions and the flow should be split,
2849 * 0 when no split required.
2852 flow_check_hairpin_split(struct rte_eth_dev *dev,
2853 const struct rte_flow_attr *attr,
2854 const struct rte_flow_action actions[])
2856 int queue_action = 0;
2859 const struct rte_flow_action_queue *queue;
2860 const struct rte_flow_action_rss *rss;
2861 const struct rte_flow_action_raw_encap *raw_encap;
2865 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2866 switch (actions->type) {
2867 case RTE_FLOW_ACTION_TYPE_QUEUE:
2868 queue = actions->conf;
2871 if (mlx5_rxq_get_type(dev, queue->index) !=
2872 MLX5_RXQ_TYPE_HAIRPIN)
2877 case RTE_FLOW_ACTION_TYPE_RSS:
2878 rss = actions->conf;
2879 if (rss == NULL || rss->queue_num == 0)
2881 if (mlx5_rxq_get_type(dev, rss->queue[0]) !=
2882 MLX5_RXQ_TYPE_HAIRPIN)
2887 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2888 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2892 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2893 raw_encap = actions->conf;
2894 if (raw_encap->size >
2895 (sizeof(struct rte_flow_item_eth) +
2896 sizeof(struct rte_flow_item_ipv4)))
2905 if (encap == 1 && queue_action)
2910 /* Declare flow create/destroy prototype in advance. */
2911 static struct rte_flow *
2912 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2913 const struct rte_flow_attr *attr,
2914 const struct rte_flow_item items[],
2915 const struct rte_flow_action actions[],
2916 bool external, struct rte_flow_error *error);
2919 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2920 struct rte_flow *flow);
2923 * Add a flow of copying flow metadata registers in RX_CP_TBL.
2925 * As mark_id is unique, if there's already a registered flow for the mark_id,
2926 * return by increasing the reference counter of the resource. Otherwise, create
2927 * the resource (mcp_res) and flow.
2930 * - If ingress port is ANY and reg_c[1] is mark_id,
2931 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
2933 * For default flow (zero mark_id), flow is like,
2934 * - If ingress port is ANY,
2935 * reg_b := reg_c[0] and jump to RX_ACT_TBL.
2938 * Pointer to Ethernet device.
2940 * ID of MARK action, zero means default flow for META.
2942 * Perform verbose error reporting if not NULL.
2945 * Associated resource on success, NULL otherwise and rte_errno is set.
2947 static struct mlx5_flow_mreg_copy_resource *
2948 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
2949 struct rte_flow_error *error)
2951 struct mlx5_priv *priv = dev->data->dev_private;
2952 struct rte_flow_attr attr = {
2953 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
2956 struct mlx5_rte_flow_item_tag tag_spec = {
2959 struct rte_flow_item items[] = {
2960 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
2962 struct rte_flow_action_mark ftag = {
2965 struct mlx5_flow_action_copy_mreg cp_mreg = {
2969 struct rte_flow_action_jump jump = {
2970 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
2972 struct rte_flow_action actions[] = {
2973 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
2975 struct mlx5_flow_mreg_copy_resource *mcp_res;
2978 /* Fill the register fileds in the flow. */
2979 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
2983 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
2987 /* Check if already registered. */
2988 MLX5_ASSERT(priv->mreg_cp_tbl);
2989 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id);
2991 /* For non-default rule. */
2992 if (mark_id != MLX5_DEFAULT_COPY_ID)
2994 MLX5_ASSERT(mark_id != MLX5_DEFAULT_COPY_ID ||
2995 mcp_res->refcnt == 1);
2998 /* Provide the full width of FLAG specific value. */
2999 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
3000 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
3001 /* Build a new flow. */
3002 if (mark_id != MLX5_DEFAULT_COPY_ID) {
3003 items[0] = (struct rte_flow_item){
3004 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
3007 items[1] = (struct rte_flow_item){
3008 .type = RTE_FLOW_ITEM_TYPE_END,
3010 actions[0] = (struct rte_flow_action){
3011 .type = MLX5_RTE_FLOW_ACTION_TYPE_MARK,
3014 actions[1] = (struct rte_flow_action){
3015 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3018 actions[2] = (struct rte_flow_action){
3019 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3022 actions[3] = (struct rte_flow_action){
3023 .type = RTE_FLOW_ACTION_TYPE_END,
3026 /* Default rule, wildcard match. */
3027 attr.priority = MLX5_FLOW_PRIO_RSVD;
3028 items[0] = (struct rte_flow_item){
3029 .type = RTE_FLOW_ITEM_TYPE_END,
3031 actions[0] = (struct rte_flow_action){
3032 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3035 actions[1] = (struct rte_flow_action){
3036 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3039 actions[2] = (struct rte_flow_action){
3040 .type = RTE_FLOW_ACTION_TYPE_END,
3043 /* Build a new entry. */
3044 mcp_res = rte_zmalloc(__func__, sizeof(*mcp_res), 0);
3050 * The copy Flows are not included in any list. There
3051 * ones are referenced from other Flows and can not
3052 * be applied, removed, deleted in ardbitrary order
3053 * by list traversing.
3055 mcp_res->flow = flow_list_create(dev, NULL, &attr, items,
3056 actions, false, error);
3060 mcp_res->hlist_ent.key = mark_id;
3061 ret = mlx5_hlist_insert(priv->mreg_cp_tbl,
3062 &mcp_res->hlist_ent);
3069 flow_list_destroy(dev, NULL, mcp_res->flow);
3075 * Release flow in RX_CP_TBL.
3078 * Pointer to Ethernet device.
3080 * Parent flow for wich copying is provided.
3083 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
3084 struct rte_flow *flow)
3086 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3087 struct mlx5_priv *priv = dev->data->dev_private;
3089 if (!mcp_res || !priv->mreg_cp_tbl)
3091 if (flow->copy_applied) {
3092 MLX5_ASSERT(mcp_res->appcnt);
3093 flow->copy_applied = 0;
3095 if (!mcp_res->appcnt)
3096 flow_drv_remove(dev, mcp_res->flow);
3099 * We do not check availability of metadata registers here,
3100 * because copy resources are not allocated in this case.
3102 if (--mcp_res->refcnt)
3104 MLX5_ASSERT(mcp_res->flow);
3105 flow_list_destroy(dev, NULL, mcp_res->flow);
3106 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3108 flow->mreg_copy = NULL;
3112 * Start flow in RX_CP_TBL.
3115 * Pointer to Ethernet device.
3117 * Parent flow for wich copying is provided.
3120 * 0 on success, a negative errno value otherwise and rte_errno is set.
3123 flow_mreg_start_copy_action(struct rte_eth_dev *dev,
3124 struct rte_flow *flow)
3126 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3129 if (!mcp_res || flow->copy_applied)
3131 if (!mcp_res->appcnt) {
3132 ret = flow_drv_apply(dev, mcp_res->flow, NULL);
3137 flow->copy_applied = 1;
3142 * Stop flow in RX_CP_TBL.
3145 * Pointer to Ethernet device.
3147 * Parent flow for wich copying is provided.
3150 flow_mreg_stop_copy_action(struct rte_eth_dev *dev,
3151 struct rte_flow *flow)
3153 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3155 if (!mcp_res || !flow->copy_applied)
3157 MLX5_ASSERT(mcp_res->appcnt);
3159 flow->copy_applied = 0;
3160 if (!mcp_res->appcnt)
3161 flow_drv_remove(dev, mcp_res->flow);
3165 * Remove the default copy action from RX_CP_TBL.
3168 * Pointer to Ethernet device.
3171 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
3173 struct mlx5_flow_mreg_copy_resource *mcp_res;
3174 struct mlx5_priv *priv = dev->data->dev_private;
3176 /* Check if default flow is registered. */
3177 if (!priv->mreg_cp_tbl)
3179 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl,
3180 MLX5_DEFAULT_COPY_ID);
3183 MLX5_ASSERT(mcp_res->flow);
3184 flow_list_destroy(dev, NULL, mcp_res->flow);
3185 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3190 * Add the default copy action in in RX_CP_TBL.
3193 * Pointer to Ethernet device.
3195 * Perform verbose error reporting if not NULL.
3198 * 0 for success, negative value otherwise and rte_errno is set.
3201 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
3202 struct rte_flow_error *error)
3204 struct mlx5_priv *priv = dev->data->dev_private;
3205 struct mlx5_flow_mreg_copy_resource *mcp_res;
3207 /* Check whether extensive metadata feature is engaged. */
3208 if (!priv->config.dv_flow_en ||
3209 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3210 !mlx5_flow_ext_mreg_supported(dev) ||
3211 !priv->sh->dv_regc0_mask)
3213 mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error);
3220 * Add a flow of copying flow metadata registers in RX_CP_TBL.
3222 * All the flow having Q/RSS action should be split by
3223 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
3224 * performs the following,
3225 * - CQE->flow_tag := reg_c[1] (MARK)
3226 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3227 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
3228 * but there should be a flow per each MARK ID set by MARK action.
3230 * For the aforementioned reason, if there's a MARK action in flow's action
3231 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
3232 * the MARK ID to CQE's flow_tag like,
3233 * - If reg_c[1] is mark_id,
3234 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3236 * For SET_META action which stores value in reg_c[0], as the destination is
3237 * also a flow metadata register (reg_b), adding a default flow is enough. Zero
3238 * MARK ID means the default flow. The default flow looks like,
3239 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3242 * Pointer to Ethernet device.
3244 * Pointer to flow structure.
3245 * @param[in] actions
3246 * Pointer to the list of actions.
3248 * Perform verbose error reporting if not NULL.
3251 * 0 on success, negative value otherwise and rte_errno is set.
3254 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
3255 struct rte_flow *flow,
3256 const struct rte_flow_action *actions,
3257 struct rte_flow_error *error)
3259 struct mlx5_priv *priv = dev->data->dev_private;
3260 struct mlx5_dev_config *config = &priv->config;
3261 struct mlx5_flow_mreg_copy_resource *mcp_res;
3262 const struct rte_flow_action_mark *mark;
3264 /* Check whether extensive metadata feature is engaged. */
3265 if (!config->dv_flow_en ||
3266 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3267 !mlx5_flow_ext_mreg_supported(dev) ||
3268 !priv->sh->dv_regc0_mask)
3270 /* Find MARK action. */
3271 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3272 switch (actions->type) {
3273 case RTE_FLOW_ACTION_TYPE_FLAG:
3274 mcp_res = flow_mreg_add_copy_action
3275 (dev, MLX5_FLOW_MARK_DEFAULT, error);
3278 flow->mreg_copy = mcp_res;
3279 if (dev->data->dev_started) {
3281 flow->copy_applied = 1;
3284 case RTE_FLOW_ACTION_TYPE_MARK:
3285 mark = (const struct rte_flow_action_mark *)
3288 flow_mreg_add_copy_action(dev, mark->id, error);
3291 flow->mreg_copy = mcp_res;
3292 if (dev->data->dev_started) {
3294 flow->copy_applied = 1;
3304 #define MLX5_MAX_SPLIT_ACTIONS 24
3305 #define MLX5_MAX_SPLIT_ITEMS 24
3308 * Split the hairpin flow.
3309 * Since HW can't support encap on Rx we move the encap to Tx.
3310 * If the count action is after the encap then we also
3311 * move the count action. in this case the count will also measure
3315 * Pointer to Ethernet device.
3316 * @param[in] actions
3317 * Associated actions (list terminated by the END action).
3318 * @param[out] actions_rx
3320 * @param[out] actions_tx
3322 * @param[out] pattern_tx
3323 * The pattern items for the Tx flow.
3324 * @param[out] flow_id
3325 * The flow ID connected to this flow.
3331 flow_hairpin_split(struct rte_eth_dev *dev,
3332 const struct rte_flow_action actions[],
3333 struct rte_flow_action actions_rx[],
3334 struct rte_flow_action actions_tx[],
3335 struct rte_flow_item pattern_tx[],
3338 struct mlx5_priv *priv = dev->data->dev_private;
3339 const struct rte_flow_action_raw_encap *raw_encap;
3340 const struct rte_flow_action_raw_decap *raw_decap;
3341 struct mlx5_rte_flow_action_set_tag *set_tag;
3342 struct rte_flow_action *tag_action;
3343 struct mlx5_rte_flow_item_tag *tag_item;
3344 struct rte_flow_item *item;
3348 mlx5_flow_id_get(priv->sh->flow_id_pool, flow_id);
3349 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3350 switch (actions->type) {
3351 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3352 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3353 rte_memcpy(actions_tx, actions,
3354 sizeof(struct rte_flow_action));
3357 case RTE_FLOW_ACTION_TYPE_COUNT:
3359 rte_memcpy(actions_tx, actions,
3360 sizeof(struct rte_flow_action));
3363 rte_memcpy(actions_rx, actions,
3364 sizeof(struct rte_flow_action));
3368 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3369 raw_encap = actions->conf;
3370 if (raw_encap->size >
3371 (sizeof(struct rte_flow_item_eth) +
3372 sizeof(struct rte_flow_item_ipv4))) {
3373 memcpy(actions_tx, actions,
3374 sizeof(struct rte_flow_action));
3378 rte_memcpy(actions_rx, actions,
3379 sizeof(struct rte_flow_action));
3383 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3384 raw_decap = actions->conf;
3385 if (raw_decap->size <
3386 (sizeof(struct rte_flow_item_eth) +
3387 sizeof(struct rte_flow_item_ipv4))) {
3388 memcpy(actions_tx, actions,
3389 sizeof(struct rte_flow_action));
3392 rte_memcpy(actions_rx, actions,
3393 sizeof(struct rte_flow_action));
3398 rte_memcpy(actions_rx, actions,
3399 sizeof(struct rte_flow_action));
3404 /* Add set meta action and end action for the Rx flow. */
3405 tag_action = actions_rx;
3406 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3408 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
3410 set_tag = (void *)actions_rx;
3411 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL);
3412 MLX5_ASSERT(set_tag->id > REG_NONE);
3413 set_tag->data = *flow_id;
3414 tag_action->conf = set_tag;
3415 /* Create Tx item list. */
3416 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
3417 addr = (void *)&pattern_tx[2];
3419 item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3420 tag_item = (void *)addr;
3421 tag_item->data = *flow_id;
3422 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
3423 MLX5_ASSERT(set_tag->id > REG_NONE);
3424 item->spec = tag_item;
3425 addr += sizeof(struct mlx5_rte_flow_item_tag);
3426 tag_item = (void *)addr;
3427 tag_item->data = UINT32_MAX;
3428 tag_item->id = UINT16_MAX;
3429 item->mask = tag_item;
3430 addr += sizeof(struct mlx5_rte_flow_item_tag);
3433 item->type = RTE_FLOW_ITEM_TYPE_END;
3438 * The last stage of splitting chain, just creates the subflow
3439 * without any modification.
3442 * Pointer to Ethernet device.
3444 * Parent flow structure pointer.
3445 * @param[in, out] sub_flow
3446 * Pointer to return the created subflow, may be NULL.
3447 * @param[in] prefix_layers
3448 * Prefix subflow layers, may be 0.
3450 * Flow rule attributes.
3452 * Pattern specification (list terminated by the END pattern item).
3453 * @param[in] actions
3454 * Associated actions (list terminated by the END action).
3455 * @param[in] external
3456 * This flow rule is created by request external to PMD.
3458 * Perform verbose error reporting if not NULL.
3460 * 0 on success, negative value otherwise
3463 flow_create_split_inner(struct rte_eth_dev *dev,
3464 struct rte_flow *flow,
3465 struct mlx5_flow **sub_flow,
3466 uint64_t prefix_layers,
3467 const struct rte_flow_attr *attr,
3468 const struct rte_flow_item items[],
3469 const struct rte_flow_action actions[],
3470 bool external, struct rte_flow_error *error)
3472 struct mlx5_flow *dev_flow;
3474 dev_flow = flow_drv_prepare(flow, attr, items, actions, error);
3477 dev_flow->flow = flow;
3478 dev_flow->external = external;
3479 /* Subflow object was created, we must include one in the list. */
3480 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
3482 * If dev_flow is as one of the suffix flow, some actions in suffix
3483 * flow may need some user defined item layer flags.
3486 dev_flow->layers = prefix_layers;
3488 *sub_flow = dev_flow;
3489 return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
3493 * Split the meter flow.
3495 * As meter flow will split to three sub flow, other than meter
3496 * action, the other actions make sense to only meter accepts
3497 * the packet. If it need to be dropped, no other additional
3498 * actions should be take.
3500 * One kind of special action which decapsulates the L3 tunnel
3501 * header will be in the prefix sub flow, as not to take the
3502 * L3 tunnel header into account.
3505 * Pointer to Ethernet device.
3507 * Pattern specification (list terminated by the END pattern item).
3508 * @param[out] sfx_items
3509 * Suffix flow match items (list terminated by the END pattern item).
3510 * @param[in] actions
3511 * Associated actions (list terminated by the END action).
3512 * @param[out] actions_sfx
3513 * Suffix flow actions.
3514 * @param[out] actions_pre
3515 * Prefix flow actions.
3516 * @param[out] pattern_sfx
3517 * The pattern items for the suffix flow.
3518 * @param[out] tag_sfx
3519 * Pointer to suffix flow tag.
3525 flow_meter_split_prep(struct rte_eth_dev *dev,
3526 const struct rte_flow_item items[],
3527 struct rte_flow_item sfx_items[],
3528 const struct rte_flow_action actions[],
3529 struct rte_flow_action actions_sfx[],
3530 struct rte_flow_action actions_pre[])
3532 struct rte_flow_action *tag_action = NULL;
3533 struct rte_flow_item *tag_item;
3534 struct mlx5_rte_flow_action_set_tag *set_tag;
3535 struct rte_flow_error error;
3536 const struct rte_flow_action_raw_encap *raw_encap;
3537 const struct rte_flow_action_raw_decap *raw_decap;
3538 struct mlx5_rte_flow_item_tag *tag_spec;
3539 struct mlx5_rte_flow_item_tag *tag_mask;
3541 bool copy_vlan = false;
3543 /* Prepare the actions for prefix and suffix flow. */
3544 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3545 struct rte_flow_action **action_cur = NULL;
3547 switch (actions->type) {
3548 case RTE_FLOW_ACTION_TYPE_METER:
3549 /* Add the extra tag action first. */
3550 tag_action = actions_pre;
3551 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3553 action_cur = &actions_pre;
3555 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3556 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
3557 action_cur = &actions_pre;
3559 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3560 raw_encap = actions->conf;
3561 if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE)
3562 action_cur = &actions_pre;
3564 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3565 raw_decap = actions->conf;
3566 if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE)
3567 action_cur = &actions_pre;
3569 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
3570 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
3577 action_cur = &actions_sfx;
3578 memcpy(*action_cur, actions, sizeof(struct rte_flow_action));
3581 /* Add end action to the actions. */
3582 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
3583 actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
3586 set_tag = (void *)actions_pre;
3587 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3589 * Get the id from the qrss_pool to make qrss share the id with meter.
3591 tag_id = flow_qrss_get_id(dev);
3592 set_tag->data = tag_id << MLX5_MTR_COLOR_BITS;
3594 tag_action->conf = set_tag;
3595 /* Prepare the suffix subflow items. */
3596 tag_item = sfx_items++;
3597 for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
3598 int item_type = items->type;
3600 switch (item_type) {
3601 case RTE_FLOW_ITEM_TYPE_PORT_ID:
3602 memcpy(sfx_items, items, sizeof(*sfx_items));
3605 case RTE_FLOW_ITEM_TYPE_VLAN:
3607 memcpy(sfx_items, items, sizeof(*sfx_items));
3609 * Convert to internal match item, it is used
3610 * for vlan push and set vid.
3612 sfx_items->type = MLX5_RTE_FLOW_ITEM_TYPE_VLAN;
3620 sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
3622 tag_spec = (struct mlx5_rte_flow_item_tag *)sfx_items;
3623 tag_spec->data = tag_id << MLX5_MTR_COLOR_BITS;
3624 tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3625 tag_mask = tag_spec + 1;
3626 tag_mask->data = 0xffffff00;
3627 tag_item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3628 tag_item->spec = tag_spec;
3629 tag_item->last = NULL;
3630 tag_item->mask = tag_mask;
3635 * Split action list having QUEUE/RSS for metadata register copy.
3637 * Once Q/RSS action is detected in user's action list, the flow action
3638 * should be split in order to copy metadata registers, which will happen in
3640 * - CQE->flow_tag := reg_c[1] (MARK)
3641 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3642 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
3643 * This is because the last action of each flow must be a terminal action
3644 * (QUEUE, RSS or DROP).
3646 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
3647 * stored and kept in the mlx5_flow structure per each sub_flow.
3649 * The Q/RSS action is replaced with,
3650 * - SET_TAG, setting the allocated flow ID to reg_c[2].
3651 * And the following JUMP action is added at the end,
3652 * - JUMP, to RX_CP_TBL.
3654 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
3655 * flow_create_split_metadata() routine. The flow will look like,
3656 * - If flow ID matches (reg_c[2]), perform Q/RSS.
3659 * Pointer to Ethernet device.
3660 * @param[out] split_actions
3661 * Pointer to store split actions to jump to CP_TBL.
3662 * @param[in] actions
3663 * Pointer to the list of original flow actions.
3665 * Pointer to the Q/RSS action.
3666 * @param[in] actions_n
3667 * Number of original actions.
3669 * Perform verbose error reporting if not NULL.
3672 * non-zero unique flow_id on success, otherwise 0 and
3673 * error/rte_error are set.
3676 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
3677 struct rte_flow_action *split_actions,
3678 const struct rte_flow_action *actions,
3679 const struct rte_flow_action *qrss,
3680 int actions_n, struct rte_flow_error *error)
3682 struct mlx5_rte_flow_action_set_tag *set_tag;
3683 struct rte_flow_action_jump *jump;
3684 const int qrss_idx = qrss - actions;
3685 uint32_t flow_id = 0;
3689 * Given actions will be split
3690 * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
3691 * - Add jump to mreg CP_TBL.
3692 * As a result, there will be one more action.
3695 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
3696 set_tag = (void *)(split_actions + actions_n);
3698 * If tag action is not set to void(it means we are not the meter
3699 * suffix flow), add the tag action. Since meter suffix flow already
3700 * has the tag added.
3702 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
3704 * Allocate the new subflow ID. This one is unique within
3705 * device and not shared with representors. Otherwise,
3706 * we would have to resolve multi-thread access synch
3707 * issue. Each flow on the shared device is appended
3708 * with source vport identifier, so the resulting
3709 * flows will be unique in the shared (by master and
3710 * representors) domain even if they have coinciding
3713 flow_id = flow_qrss_get_id(dev);
3715 return rte_flow_error_set(error, ENOMEM,
3716 RTE_FLOW_ERROR_TYPE_ACTION,
3717 NULL, "can't allocate id "
3718 "for split Q/RSS subflow");
3719 /* Internal SET_TAG action to set flow ID. */
3720 *set_tag = (struct mlx5_rte_flow_action_set_tag){
3723 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
3727 /* Construct new actions array. */
3728 /* Replace QUEUE/RSS action. */
3729 split_actions[qrss_idx] = (struct rte_flow_action){
3730 .type = MLX5_RTE_FLOW_ACTION_TYPE_TAG,
3734 /* JUMP action to jump to mreg copy table (CP_TBL). */
3735 jump = (void *)(set_tag + 1);
3736 *jump = (struct rte_flow_action_jump){
3737 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
3739 split_actions[actions_n - 2] = (struct rte_flow_action){
3740 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3743 split_actions[actions_n - 1] = (struct rte_flow_action){
3744 .type = RTE_FLOW_ACTION_TYPE_END,
3750 * Extend the given action list for Tx metadata copy.
3752 * Copy the given action list to the ext_actions and add flow metadata register
3753 * copy action in order to copy reg_a set by WQE to reg_c[0].
3755 * @param[out] ext_actions
3756 * Pointer to the extended action list.
3757 * @param[in] actions
3758 * Pointer to the list of actions.
3759 * @param[in] actions_n
3760 * Number of actions in the list.
3762 * Perform verbose error reporting if not NULL.
3763 * @param[in] encap_idx
3764 * The encap action inndex.
3767 * 0 on success, negative value otherwise
3770 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
3771 struct rte_flow_action *ext_actions,
3772 const struct rte_flow_action *actions,
3773 int actions_n, struct rte_flow_error *error,
3776 struct mlx5_flow_action_copy_mreg *cp_mreg =
3777 (struct mlx5_flow_action_copy_mreg *)
3778 (ext_actions + actions_n + 1);
3781 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
3785 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
3790 memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx);
3791 if (encap_idx == actions_n - 1) {
3792 ext_actions[actions_n - 1] = (struct rte_flow_action){
3793 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3796 ext_actions[actions_n] = (struct rte_flow_action){
3797 .type = RTE_FLOW_ACTION_TYPE_END,
3800 ext_actions[encap_idx] = (struct rte_flow_action){
3801 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3804 memcpy(ext_actions + encap_idx + 1, actions + encap_idx,
3805 sizeof(*ext_actions) * (actions_n - encap_idx));
3811 * The splitting for metadata feature.
3813 * - Q/RSS action on NIC Rx should be split in order to pass by
3814 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3815 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3817 * - All the actions on NIC Tx should have a mreg copy action to
3818 * copy reg_a from WQE to reg_c[0].
3821 * Pointer to Ethernet device.
3823 * Parent flow structure pointer.
3824 * @param[in] prefix_layers
3825 * Prefix flow layer flags.
3827 * Flow rule attributes.
3829 * Pattern specification (list terminated by the END pattern item).
3830 * @param[in] actions
3831 * Associated actions (list terminated by the END action).
3832 * @param[in] external
3833 * This flow rule is created by request external to PMD.
3835 * Perform verbose error reporting if not NULL.
3837 * 0 on success, negative value otherwise
3840 flow_create_split_metadata(struct rte_eth_dev *dev,
3841 struct rte_flow *flow,
3842 uint64_t prefix_layers,
3843 const struct rte_flow_attr *attr,
3844 const struct rte_flow_item items[],
3845 const struct rte_flow_action actions[],
3846 bool external, struct rte_flow_error *error)
3848 struct mlx5_priv *priv = dev->data->dev_private;
3849 struct mlx5_dev_config *config = &priv->config;
3850 const struct rte_flow_action *qrss = NULL;
3851 struct rte_flow_action *ext_actions = NULL;
3852 struct mlx5_flow *dev_flow = NULL;
3853 uint32_t qrss_id = 0;
3860 /* Check whether extensive metadata feature is engaged. */
3861 if (!config->dv_flow_en ||
3862 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3863 !mlx5_flow_ext_mreg_supported(dev))
3864 return flow_create_split_inner(dev, flow, NULL, prefix_layers,
3865 attr, items, actions, external,
3867 actions_n = flow_parse_metadata_split_actions_info(actions, &qrss,
3870 /* Exclude hairpin flows from splitting. */
3871 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
3872 const struct rte_flow_action_queue *queue;
3875 if (mlx5_rxq_get_type(dev, queue->index) ==
3876 MLX5_RXQ_TYPE_HAIRPIN)
3878 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
3879 const struct rte_flow_action_rss *rss;
3882 if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
3883 MLX5_RXQ_TYPE_HAIRPIN)
3888 /* Check if it is in meter suffix table. */
3889 mtr_sfx = attr->group == (attr->transfer ?
3890 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
3891 MLX5_FLOW_TABLE_LEVEL_SUFFIX);
3893 * Q/RSS action on NIC Rx should be split in order to pass by
3894 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3895 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3897 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3898 sizeof(struct rte_flow_action_set_tag) +
3899 sizeof(struct rte_flow_action_jump);
3900 ext_actions = rte_zmalloc(__func__, act_size, 0);
3902 return rte_flow_error_set(error, ENOMEM,
3903 RTE_FLOW_ERROR_TYPE_ACTION,
3904 NULL, "no memory to split "
3907 * If we are the suffix flow of meter, tag already exist.
3908 * Set the tag action to void.
3911 ext_actions[qrss - actions].type =
3912 RTE_FLOW_ACTION_TYPE_VOID;
3914 ext_actions[qrss - actions].type =
3915 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3917 * Create the new actions list with removed Q/RSS action
3918 * and appended set tag and jump to register copy table
3919 * (RX_CP_TBL). We should preallocate unique tag ID here
3920 * in advance, because it is needed for set tag action.
3922 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
3923 qrss, actions_n, error);
3924 if (!mtr_sfx && !qrss_id) {
3928 } else if (attr->egress && !attr->transfer) {
3930 * All the actions on NIC Tx should have a metadata register
3931 * copy action to copy reg_a from WQE to reg_c[meta]
3933 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3934 sizeof(struct mlx5_flow_action_copy_mreg);
3935 ext_actions = rte_zmalloc(__func__, act_size, 0);
3937 return rte_flow_error_set(error, ENOMEM,
3938 RTE_FLOW_ERROR_TYPE_ACTION,
3939 NULL, "no memory to split "
3941 /* Create the action list appended with copy register. */
3942 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
3943 actions_n, error, encap_idx);
3947 /* Add the unmodified original or prefix subflow. */
3948 ret = flow_create_split_inner(dev, flow, &dev_flow, prefix_layers, attr,
3949 items, ext_actions ? ext_actions :
3950 actions, external, error);
3953 MLX5_ASSERT(dev_flow);
3955 const struct rte_flow_attr q_attr = {
3956 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
3959 /* Internal PMD action to set register. */
3960 struct mlx5_rte_flow_item_tag q_tag_spec = {
3964 struct rte_flow_item q_items[] = {
3966 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
3967 .spec = &q_tag_spec,
3972 .type = RTE_FLOW_ITEM_TYPE_END,
3975 struct rte_flow_action q_actions[] = {
3981 .type = RTE_FLOW_ACTION_TYPE_END,
3984 uint64_t layers = flow_get_prefix_layer_flags(dev_flow);
3987 * Configure the tag item only if there is no meter subflow.
3988 * Since tag is already marked in the meter suffix subflow
3989 * we can just use the meter suffix items as is.
3992 /* Not meter subflow. */
3993 MLX5_ASSERT(!mtr_sfx);
3995 * Put unique id in prefix flow due to it is destroyed
3996 * after suffix flow and id will be freed after there
3997 * is no actual flows with this id and identifier
3998 * reallocation becomes possible (for example, for
3999 * other flows in other threads).
4001 dev_flow->qrss_id = qrss_id;
4003 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
4007 q_tag_spec.id = ret;
4010 /* Add suffix subflow to execute Q/RSS. */
4011 ret = flow_create_split_inner(dev, flow, &dev_flow, layers,
4012 &q_attr, mtr_sfx ? items :
4017 MLX5_ASSERT(dev_flow);
4022 * We do not destroy the partially created sub_flows in case of error.
4023 * These ones are included into parent flow list and will be destroyed
4024 * by flow_drv_destroy.
4026 flow_qrss_free_id(dev, qrss_id);
4027 rte_free(ext_actions);
4032 * The splitting for meter feature.
4034 * - The meter flow will be split to two flows as prefix and
4035 * suffix flow. The packets make sense only it pass the prefix
4038 * - Reg_C_5 is used for the packet to match betweend prefix and
4042 * Pointer to Ethernet device.
4044 * Parent flow structure pointer.
4046 * Flow rule attributes.
4048 * Pattern specification (list terminated by the END pattern item).
4049 * @param[in] actions
4050 * Associated actions (list terminated by the END action).
4051 * @param[in] external
4052 * This flow rule is created by request external to PMD.
4054 * Perform verbose error reporting if not NULL.
4056 * 0 on success, negative value otherwise
4059 flow_create_split_meter(struct rte_eth_dev *dev,
4060 struct rte_flow *flow,
4061 const struct rte_flow_attr *attr,
4062 const struct rte_flow_item items[],
4063 const struct rte_flow_action actions[],
4064 bool external, struct rte_flow_error *error)
4066 struct mlx5_priv *priv = dev->data->dev_private;
4067 struct rte_flow_action *sfx_actions = NULL;
4068 struct rte_flow_action *pre_actions = NULL;
4069 struct rte_flow_item *sfx_items = NULL;
4070 struct mlx5_flow *dev_flow = NULL;
4071 struct rte_flow_attr sfx_attr = *attr;
4073 uint32_t mtr_tag_id = 0;
4080 actions_n = flow_check_meter_action(actions, &mtr);
4082 /* The five prefix actions: meter, decap, encap, tag, end. */
4083 act_size = sizeof(struct rte_flow_action) * (actions_n + 5) +
4084 sizeof(struct mlx5_rte_flow_action_set_tag);
4085 /* tag, vlan, port id, end. */
4086 #define METER_SUFFIX_ITEM 4
4087 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
4088 sizeof(struct mlx5_rte_flow_item_tag) * 2;
4089 sfx_actions = rte_zmalloc(__func__, (act_size + item_size), 0);
4091 return rte_flow_error_set(error, ENOMEM,
4092 RTE_FLOW_ERROR_TYPE_ACTION,
4093 NULL, "no memory to split "
4095 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
4097 pre_actions = sfx_actions + actions_n;
4098 mtr_tag_id = flow_meter_split_prep(dev, items, sfx_items,
4099 actions, sfx_actions,
4105 /* Add the prefix subflow. */
4106 ret = flow_create_split_inner(dev, flow, &dev_flow, 0, attr,
4107 items, pre_actions, external,
4113 dev_flow->mtr_flow_id = mtr_tag_id;
4114 /* Setting the sfx group atrr. */
4115 sfx_attr.group = sfx_attr.transfer ?
4116 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
4117 MLX5_FLOW_TABLE_LEVEL_SUFFIX;
4119 /* Add the prefix subflow. */
4120 ret = flow_create_split_metadata(dev, flow, dev_flow ?
4121 flow_get_prefix_layer_flags(dev_flow) :
4123 sfx_items ? sfx_items : items,
4124 sfx_actions ? sfx_actions : actions,
4128 rte_free(sfx_actions);
4133 * Split the flow to subflow set. The splitters might be linked
4134 * in the chain, like this:
4135 * flow_create_split_outer() calls:
4136 * flow_create_split_meter() calls:
4137 * flow_create_split_metadata(meter_subflow_0) calls:
4138 * flow_create_split_inner(metadata_subflow_0)
4139 * flow_create_split_inner(metadata_subflow_1)
4140 * flow_create_split_inner(metadata_subflow_2)
4141 * flow_create_split_metadata(meter_subflow_1) calls:
4142 * flow_create_split_inner(metadata_subflow_0)
4143 * flow_create_split_inner(metadata_subflow_1)
4144 * flow_create_split_inner(metadata_subflow_2)
4146 * This provide flexible way to add new levels of flow splitting.
4147 * The all of successfully created subflows are included to the
4148 * parent flow dev_flow list.
4151 * Pointer to Ethernet device.
4153 * Parent flow structure pointer.
4155 * Flow rule attributes.
4157 * Pattern specification (list terminated by the END pattern item).
4158 * @param[in] actions
4159 * Associated actions (list terminated by the END action).
4160 * @param[in] external
4161 * This flow rule is created by request external to PMD.
4163 * Perform verbose error reporting if not NULL.
4165 * 0 on success, negative value otherwise
4168 flow_create_split_outer(struct rte_eth_dev *dev,
4169 struct rte_flow *flow,
4170 const struct rte_flow_attr *attr,
4171 const struct rte_flow_item items[],
4172 const struct rte_flow_action actions[],
4173 bool external, struct rte_flow_error *error)
4177 ret = flow_create_split_meter(dev, flow, attr, items,
4178 actions, external, error);
4179 MLX5_ASSERT(ret <= 0);
4184 * Create a flow and add it to @p list.
4187 * Pointer to Ethernet device.
4189 * Pointer to a TAILQ flow list. If this parameter NULL,
4190 * no list insertion occurred, flow is just created,
4191 * this is caller's responsibility to track the
4194 * Flow rule attributes.
4196 * Pattern specification (list terminated by the END pattern item).
4197 * @param[in] actions
4198 * Associated actions (list terminated by the END action).
4199 * @param[in] external
4200 * This flow rule is created by request external to PMD.
4202 * Perform verbose error reporting if not NULL.
4205 * A flow on success, NULL otherwise and rte_errno is set.
4207 static struct rte_flow *
4208 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
4209 const struct rte_flow_attr *attr,
4210 const struct rte_flow_item items[],
4211 const struct rte_flow_action actions[],
4212 bool external, struct rte_flow_error *error)
4214 struct mlx5_priv *priv = dev->data->dev_private;
4215 struct rte_flow *flow = NULL;
4216 struct mlx5_flow *dev_flow;
4217 const struct rte_flow_action_rss *rss;
4219 struct rte_flow_expand_rss buf;
4220 uint8_t buffer[2048];
4223 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4224 uint8_t buffer[2048];
4227 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4228 uint8_t buffer[2048];
4229 } actions_hairpin_tx;
4231 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
4232 uint8_t buffer[2048];
4234 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
4235 const struct rte_flow_action *p_actions_rx = actions;
4238 int hairpin_flow = 0;
4239 uint32_t hairpin_id = 0;
4240 struct rte_flow_attr attr_tx = { .priority = 0 };
4241 int ret = flow_drv_validate(dev, attr, items, p_actions_rx, external,
4246 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
4247 if (hairpin_flow > 0) {
4248 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
4252 flow_hairpin_split(dev, actions, actions_rx.actions,
4253 actions_hairpin_tx.actions, items_tx.items,
4255 p_actions_rx = actions_rx.actions;
4257 flow_size = sizeof(struct rte_flow);
4258 rss = flow_get_rss_action(p_actions_rx);
4260 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
4263 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
4264 flow = rte_calloc(__func__, 1, flow_size, 0);
4267 goto error_before_flow;
4269 flow->drv_type = flow_get_drv_type(dev, attr);
4270 if (hairpin_id != 0)
4271 flow->hairpin_flow_id = hairpin_id;
4272 MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
4273 flow->drv_type < MLX5_FLOW_TYPE_MAX);
4274 flow->rss.queue = (void *)(flow + 1);
4277 * The following information is required by
4278 * mlx5_flow_hashfields_adjust() in advance.
4280 flow->rss.level = rss->level;
4281 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
4282 flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
4284 LIST_INIT(&flow->dev_flows);
4285 if (rss && rss->types) {
4286 unsigned int graph_root;
4288 graph_root = find_graph_root(items, rss->level);
4289 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
4291 mlx5_support_expansion,
4293 MLX5_ASSERT(ret > 0 &&
4294 (unsigned int)ret < sizeof(expand_buffer.buffer));
4297 buf->entry[0].pattern = (void *)(uintptr_t)items;
4299 for (i = 0; i < buf->entries; ++i) {
4301 * The splitter may create multiple dev_flows,
4302 * depending on configuration. In the simplest
4303 * case it just creates unmodified original flow.
4305 ret = flow_create_split_outer(dev, flow, attr,
4306 buf->entry[i].pattern,
4307 p_actions_rx, external,
4312 /* Create the tx flow. */
4314 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
4315 attr_tx.ingress = 0;
4317 dev_flow = flow_drv_prepare(flow, &attr_tx, items_tx.items,
4318 actions_hairpin_tx.actions, error);
4321 dev_flow->flow = flow;
4322 dev_flow->external = 0;
4323 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
4324 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
4326 actions_hairpin_tx.actions, error);
4331 * Update the metadata register copy table. If extensive
4332 * metadata feature is enabled and registers are supported
4333 * we might create the extra rte_flow for each unique
4334 * MARK/FLAG action ID.
4336 * The table is updated for ingress Flows only, because
4337 * the egress Flows belong to the different device and
4338 * copy table should be updated in peer NIC Rx domain.
4340 if (attr->ingress &&
4341 (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
4342 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
4346 if (dev->data->dev_started) {
4347 ret = flow_drv_apply(dev, flow, error);
4352 TAILQ_INSERT_TAIL(list, flow, next);
4353 flow_rxq_flags_set(dev, flow);
4357 mlx5_flow_id_release(priv->sh->flow_id_pool,
4362 flow_mreg_del_copy_action(dev, flow);
4363 ret = rte_errno; /* Save rte_errno before cleanup. */
4364 if (flow->hairpin_flow_id)
4365 mlx5_flow_id_release(priv->sh->flow_id_pool,
4366 flow->hairpin_flow_id);
4368 flow_drv_destroy(dev, flow);
4370 rte_errno = ret; /* Restore rte_errno. */
4375 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
4376 * incoming packets to table 1.
4378 * Other flow rules, requested for group n, will be created in
4379 * e-switch table n+1.
4380 * Jump action to e-switch group n will be created to group n+1.
4382 * Used when working in switchdev mode, to utilise advantages of table 1
4386 * Pointer to Ethernet device.
4389 * Pointer to flow on success, NULL otherwise and rte_errno is set.
4392 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
4394 const struct rte_flow_attr attr = {
4401 const struct rte_flow_item pattern = {
4402 .type = RTE_FLOW_ITEM_TYPE_END,
4404 struct rte_flow_action_jump jump = {
4407 const struct rte_flow_action actions[] = {
4409 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4413 .type = RTE_FLOW_ACTION_TYPE_END,
4416 struct mlx5_priv *priv = dev->data->dev_private;
4417 struct rte_flow_error error;
4419 return flow_list_create(dev, &priv->ctrl_flows, &attr, &pattern,
4420 actions, false, &error);
4426 * @see rte_flow_create()
4430 mlx5_flow_create(struct rte_eth_dev *dev,
4431 const struct rte_flow_attr *attr,
4432 const struct rte_flow_item items[],
4433 const struct rte_flow_action actions[],
4434 struct rte_flow_error *error)
4436 struct mlx5_priv *priv = dev->data->dev_private;
4438 return flow_list_create(dev, &priv->flows,
4439 attr, items, actions, true, error);
4443 * Destroy a flow in a list.
4446 * Pointer to Ethernet device.
4448 * Pointer to a TAILQ flow list. If this parameter NULL,
4449 * there is no flow removal from the list.
4454 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
4455 struct rte_flow *flow)
4457 struct mlx5_priv *priv = dev->data->dev_private;
4460 * Update RX queue flags only if port is started, otherwise it is
4463 if (dev->data->dev_started)
4464 flow_rxq_flags_trim(dev, flow);
4465 if (flow->hairpin_flow_id)
4466 mlx5_flow_id_release(priv->sh->flow_id_pool,
4467 flow->hairpin_flow_id);
4468 flow_drv_destroy(dev, flow);
4470 TAILQ_REMOVE(list, flow, next);
4471 flow_mreg_del_copy_action(dev, flow);
4472 rte_free(flow->fdir);
4477 * Destroy all flows.
4480 * Pointer to Ethernet device.
4482 * Pointer to a TAILQ flow list.
4485 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
4487 while (!TAILQ_EMPTY(list)) {
4488 struct rte_flow *flow;
4490 flow = TAILQ_FIRST(list);
4491 flow_list_destroy(dev, list, flow);
4499 * Pointer to Ethernet device.
4501 * Pointer to a TAILQ flow list.
4504 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
4506 struct rte_flow *flow;
4508 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
4509 flow_drv_remove(dev, flow);
4510 flow_mreg_stop_copy_action(dev, flow);
4512 flow_mreg_del_default_copy_action(dev);
4513 flow_rxq_flags_clear(dev);
4520 * Pointer to Ethernet device.
4522 * Pointer to a TAILQ flow list.
4525 * 0 on success, a negative errno value otherwise and rte_errno is set.
4528 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
4530 struct rte_flow *flow;
4531 struct rte_flow_error error;
4534 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
4535 ret = flow_mreg_add_default_copy_action(dev, &error);
4538 /* Apply Flows created by application. */
4539 TAILQ_FOREACH(flow, list, next) {
4540 ret = flow_mreg_start_copy_action(dev, flow);
4543 ret = flow_drv_apply(dev, flow, &error);
4546 flow_rxq_flags_set(dev, flow);
4550 ret = rte_errno; /* Save rte_errno before cleanup. */
4551 mlx5_flow_stop(dev, list);
4552 rte_errno = ret; /* Restore rte_errno. */
4557 * Verify the flow list is empty
4560 * Pointer to Ethernet device.
4562 * @return the number of flows not released.
4565 mlx5_flow_verify(struct rte_eth_dev *dev)
4567 struct mlx5_priv *priv = dev->data->dev_private;
4568 struct rte_flow *flow;
4571 TAILQ_FOREACH(flow, &priv->flows, next) {
4572 DRV_LOG(DEBUG, "port %u flow %p still referenced",
4573 dev->data->port_id, (void *)flow);
4580 * Enable default hairpin egress flow.
4583 * Pointer to Ethernet device.
4588 * 0 on success, a negative errno value otherwise and rte_errno is set.
4591 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
4594 struct mlx5_priv *priv = dev->data->dev_private;
4595 const struct rte_flow_attr attr = {
4599 struct mlx5_rte_flow_item_tx_queue queue_spec = {
4602 struct mlx5_rte_flow_item_tx_queue queue_mask = {
4603 .queue = UINT32_MAX,
4605 struct rte_flow_item items[] = {
4607 .type = MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
4608 .spec = &queue_spec,
4610 .mask = &queue_mask,
4613 .type = RTE_FLOW_ITEM_TYPE_END,
4616 struct rte_flow_action_jump jump = {
4617 .group = MLX5_HAIRPIN_TX_TABLE,
4619 struct rte_flow_action actions[2];
4620 struct rte_flow *flow;
4621 struct rte_flow_error error;
4623 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
4624 actions[0].conf = &jump;
4625 actions[1].type = RTE_FLOW_ACTION_TYPE_END;
4626 flow = flow_list_create(dev, &priv->ctrl_flows,
4627 &attr, items, actions, false, &error);
4630 "Failed to create ctrl flow: rte_errno(%d),"
4631 " type(%d), message(%s)",
4632 rte_errno, error.type,
4633 error.message ? error.message : " (no stated reason)");
4640 * Enable a control flow configured from the control plane.
4643 * Pointer to Ethernet device.
4645 * An Ethernet flow spec to apply.
4647 * An Ethernet flow mask to apply.
4649 * A VLAN flow spec to apply.
4651 * A VLAN flow mask to apply.
4654 * 0 on success, a negative errno value otherwise and rte_errno is set.
4657 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
4658 struct rte_flow_item_eth *eth_spec,
4659 struct rte_flow_item_eth *eth_mask,
4660 struct rte_flow_item_vlan *vlan_spec,
4661 struct rte_flow_item_vlan *vlan_mask)
4663 struct mlx5_priv *priv = dev->data->dev_private;
4664 const struct rte_flow_attr attr = {
4666 .priority = MLX5_FLOW_PRIO_RSVD,
4668 struct rte_flow_item items[] = {
4670 .type = RTE_FLOW_ITEM_TYPE_ETH,
4676 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
4677 RTE_FLOW_ITEM_TYPE_END,
4683 .type = RTE_FLOW_ITEM_TYPE_END,
4686 uint16_t queue[priv->reta_idx_n];
4687 struct rte_flow_action_rss action_rss = {
4688 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
4690 .types = priv->rss_conf.rss_hf,
4691 .key_len = priv->rss_conf.rss_key_len,
4692 .queue_num = priv->reta_idx_n,
4693 .key = priv->rss_conf.rss_key,
4696 struct rte_flow_action actions[] = {
4698 .type = RTE_FLOW_ACTION_TYPE_RSS,
4699 .conf = &action_rss,
4702 .type = RTE_FLOW_ACTION_TYPE_END,
4705 struct rte_flow *flow;
4706 struct rte_flow_error error;
4709 if (!priv->reta_idx_n || !priv->rxqs_n) {
4712 for (i = 0; i != priv->reta_idx_n; ++i)
4713 queue[i] = (*priv->reta_idx)[i];
4714 flow = flow_list_create(dev, &priv->ctrl_flows,
4715 &attr, items, actions, false, &error);
4722 * Enable a flow control configured from the control plane.
4725 * Pointer to Ethernet device.
4727 * An Ethernet flow spec to apply.
4729 * An Ethernet flow mask to apply.
4732 * 0 on success, a negative errno value otherwise and rte_errno is set.
4735 mlx5_ctrl_flow(struct rte_eth_dev *dev,
4736 struct rte_flow_item_eth *eth_spec,
4737 struct rte_flow_item_eth *eth_mask)
4739 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
4745 * @see rte_flow_destroy()
4749 mlx5_flow_destroy(struct rte_eth_dev *dev,
4750 struct rte_flow *flow,
4751 struct rte_flow_error *error __rte_unused)
4753 struct mlx5_priv *priv = dev->data->dev_private;
4755 flow_list_destroy(dev, &priv->flows, flow);
4760 * Destroy all flows.
4762 * @see rte_flow_flush()
4766 mlx5_flow_flush(struct rte_eth_dev *dev,
4767 struct rte_flow_error *error __rte_unused)
4769 struct mlx5_priv *priv = dev->data->dev_private;
4771 mlx5_flow_list_flush(dev, &priv->flows);
4778 * @see rte_flow_isolate()
4782 mlx5_flow_isolate(struct rte_eth_dev *dev,
4784 struct rte_flow_error *error)
4786 struct mlx5_priv *priv = dev->data->dev_private;
4788 if (dev->data->dev_started) {
4789 rte_flow_error_set(error, EBUSY,
4790 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4792 "port must be stopped first");
4795 priv->isolated = !!enable;
4797 dev->dev_ops = &mlx5_dev_ops_isolate;
4799 dev->dev_ops = &mlx5_dev_ops;
4806 * @see rte_flow_query()
4810 flow_drv_query(struct rte_eth_dev *dev,
4811 struct rte_flow *flow,
4812 const struct rte_flow_action *actions,
4814 struct rte_flow_error *error)
4816 const struct mlx5_flow_driver_ops *fops;
4817 enum mlx5_flow_drv_type ftype = flow->drv_type;
4819 MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
4820 fops = flow_get_drv_ops(ftype);
4822 return fops->query(dev, flow, actions, data, error);
4828 * @see rte_flow_query()
4832 mlx5_flow_query(struct rte_eth_dev *dev,
4833 struct rte_flow *flow,
4834 const struct rte_flow_action *actions,
4836 struct rte_flow_error *error)
4840 ret = flow_drv_query(dev, flow, actions, data, error);
4847 * Convert a flow director filter to a generic flow.
4850 * Pointer to Ethernet device.
4851 * @param fdir_filter
4852 * Flow director filter to add.
4854 * Generic flow parameters structure.
4857 * 0 on success, a negative errno value otherwise and rte_errno is set.
4860 flow_fdir_filter_convert(struct rte_eth_dev *dev,
4861 const struct rte_eth_fdir_filter *fdir_filter,
4862 struct mlx5_fdir *attributes)
4864 struct mlx5_priv *priv = dev->data->dev_private;
4865 const struct rte_eth_fdir_input *input = &fdir_filter->input;
4866 const struct rte_eth_fdir_masks *mask =
4867 &dev->data->dev_conf.fdir_conf.mask;
4869 /* Validate queue number. */
4870 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
4871 DRV_LOG(ERR, "port %u invalid queue number %d",
4872 dev->data->port_id, fdir_filter->action.rx_queue);
4876 attributes->attr.ingress = 1;
4877 attributes->items[0] = (struct rte_flow_item) {
4878 .type = RTE_FLOW_ITEM_TYPE_ETH,
4879 .spec = &attributes->l2,
4880 .mask = &attributes->l2_mask,
4882 switch (fdir_filter->action.behavior) {
4883 case RTE_ETH_FDIR_ACCEPT:
4884 attributes->actions[0] = (struct rte_flow_action){
4885 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
4886 .conf = &attributes->queue,
4889 case RTE_ETH_FDIR_REJECT:
4890 attributes->actions[0] = (struct rte_flow_action){
4891 .type = RTE_FLOW_ACTION_TYPE_DROP,
4895 DRV_LOG(ERR, "port %u invalid behavior %d",
4897 fdir_filter->action.behavior);
4898 rte_errno = ENOTSUP;
4901 attributes->queue.index = fdir_filter->action.rx_queue;
4903 switch (fdir_filter->input.flow_type) {
4904 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4905 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4906 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4907 attributes->l3.ipv4.hdr = (struct rte_ipv4_hdr){
4908 .src_addr = input->flow.ip4_flow.src_ip,
4909 .dst_addr = input->flow.ip4_flow.dst_ip,
4910 .time_to_live = input->flow.ip4_flow.ttl,
4911 .type_of_service = input->flow.ip4_flow.tos,
4913 attributes->l3_mask.ipv4.hdr = (struct rte_ipv4_hdr){
4914 .src_addr = mask->ipv4_mask.src_ip,
4915 .dst_addr = mask->ipv4_mask.dst_ip,
4916 .time_to_live = mask->ipv4_mask.ttl,
4917 .type_of_service = mask->ipv4_mask.tos,
4918 .next_proto_id = mask->ipv4_mask.proto,
4920 attributes->items[1] = (struct rte_flow_item){
4921 .type = RTE_FLOW_ITEM_TYPE_IPV4,
4922 .spec = &attributes->l3,
4923 .mask = &attributes->l3_mask,
4926 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4927 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4928 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4929 attributes->l3.ipv6.hdr = (struct rte_ipv6_hdr){
4930 .hop_limits = input->flow.ipv6_flow.hop_limits,
4931 .proto = input->flow.ipv6_flow.proto,
4934 memcpy(attributes->l3.ipv6.hdr.src_addr,
4935 input->flow.ipv6_flow.src_ip,
4936 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4937 memcpy(attributes->l3.ipv6.hdr.dst_addr,
4938 input->flow.ipv6_flow.dst_ip,
4939 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4940 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
4941 mask->ipv6_mask.src_ip,
4942 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4943 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
4944 mask->ipv6_mask.dst_ip,
4945 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4946 attributes->items[1] = (struct rte_flow_item){
4947 .type = RTE_FLOW_ITEM_TYPE_IPV6,
4948 .spec = &attributes->l3,
4949 .mask = &attributes->l3_mask,
4953 DRV_LOG(ERR, "port %u invalid flow type%d",
4954 dev->data->port_id, fdir_filter->input.flow_type);
4955 rte_errno = ENOTSUP;
4959 switch (fdir_filter->input.flow_type) {
4960 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4961 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4962 .src_port = input->flow.udp4_flow.src_port,
4963 .dst_port = input->flow.udp4_flow.dst_port,
4965 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4966 .src_port = mask->src_port_mask,
4967 .dst_port = mask->dst_port_mask,
4969 attributes->items[2] = (struct rte_flow_item){
4970 .type = RTE_FLOW_ITEM_TYPE_UDP,
4971 .spec = &attributes->l4,
4972 .mask = &attributes->l4_mask,
4975 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4976 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4977 .src_port = input->flow.tcp4_flow.src_port,
4978 .dst_port = input->flow.tcp4_flow.dst_port,
4980 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4981 .src_port = mask->src_port_mask,
4982 .dst_port = mask->dst_port_mask,
4984 attributes->items[2] = (struct rte_flow_item){
4985 .type = RTE_FLOW_ITEM_TYPE_TCP,
4986 .spec = &attributes->l4,
4987 .mask = &attributes->l4_mask,
4990 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4991 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4992 .src_port = input->flow.udp6_flow.src_port,
4993 .dst_port = input->flow.udp6_flow.dst_port,
4995 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4996 .src_port = mask->src_port_mask,
4997 .dst_port = mask->dst_port_mask,
4999 attributes->items[2] = (struct rte_flow_item){
5000 .type = RTE_FLOW_ITEM_TYPE_UDP,
5001 .spec = &attributes->l4,
5002 .mask = &attributes->l4_mask,
5005 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
5006 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
5007 .src_port = input->flow.tcp6_flow.src_port,
5008 .dst_port = input->flow.tcp6_flow.dst_port,
5010 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
5011 .src_port = mask->src_port_mask,
5012 .dst_port = mask->dst_port_mask,
5014 attributes->items[2] = (struct rte_flow_item){
5015 .type = RTE_FLOW_ITEM_TYPE_TCP,
5016 .spec = &attributes->l4,
5017 .mask = &attributes->l4_mask,
5020 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
5021 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
5024 DRV_LOG(ERR, "port %u invalid flow type%d",
5025 dev->data->port_id, fdir_filter->input.flow_type);
5026 rte_errno = ENOTSUP;
5032 #define FLOW_FDIR_CMP(f1, f2, fld) \
5033 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
5036 * Compare two FDIR flows. If items and actions are identical, the two flows are
5040 * Pointer to Ethernet device.
5042 * FDIR flow to compare.
5044 * FDIR flow to compare.
5047 * Zero on match, 1 otherwise.
5050 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
5052 if (FLOW_FDIR_CMP(f1, f2, attr) ||
5053 FLOW_FDIR_CMP(f1, f2, l2) ||
5054 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
5055 FLOW_FDIR_CMP(f1, f2, l3) ||
5056 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
5057 FLOW_FDIR_CMP(f1, f2, l4) ||
5058 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
5059 FLOW_FDIR_CMP(f1, f2, actions[0].type))
5061 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
5062 FLOW_FDIR_CMP(f1, f2, queue))
5068 * Search device flow list to find out a matched FDIR flow.
5071 * Pointer to Ethernet device.
5073 * FDIR flow to lookup.
5076 * Pointer of flow if found, NULL otherwise.
5078 static struct rte_flow *
5079 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
5081 struct mlx5_priv *priv = dev->data->dev_private;
5082 struct rte_flow *flow = NULL;
5084 MLX5_ASSERT(fdir_flow);
5085 TAILQ_FOREACH(flow, &priv->flows, next) {
5086 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
5087 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
5088 dev->data->port_id, (void *)flow);
5096 * Add new flow director filter and store it in list.
5099 * Pointer to Ethernet device.
5100 * @param fdir_filter
5101 * Flow director filter to add.
5104 * 0 on success, a negative errno value otherwise and rte_errno is set.
5107 flow_fdir_filter_add(struct rte_eth_dev *dev,
5108 const struct rte_eth_fdir_filter *fdir_filter)
5110 struct mlx5_priv *priv = dev->data->dev_private;
5111 struct mlx5_fdir *fdir_flow;
5112 struct rte_flow *flow;
5115 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
5120 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
5123 flow = flow_fdir_filter_lookup(dev, fdir_flow);
5128 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
5129 fdir_flow->items, fdir_flow->actions, true,
5133 MLX5_ASSERT(!flow->fdir);
5134 flow->fdir = fdir_flow;
5135 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
5136 dev->data->port_id, (void *)flow);
5139 rte_free(fdir_flow);
5144 * Delete specific filter.
5147 * Pointer to Ethernet device.
5148 * @param fdir_filter
5149 * Filter to be deleted.
5152 * 0 on success, a negative errno value otherwise and rte_errno is set.
5155 flow_fdir_filter_delete(struct rte_eth_dev *dev,
5156 const struct rte_eth_fdir_filter *fdir_filter)
5158 struct mlx5_priv *priv = dev->data->dev_private;
5159 struct rte_flow *flow;
5160 struct mlx5_fdir fdir_flow = {
5165 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
5168 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
5173 flow_list_destroy(dev, &priv->flows, flow);
5174 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
5175 dev->data->port_id, (void *)flow);
5180 * Update queue for specific filter.
5183 * Pointer to Ethernet device.
5184 * @param fdir_filter
5185 * Filter to be updated.
5188 * 0 on success, a negative errno value otherwise and rte_errno is set.
5191 flow_fdir_filter_update(struct rte_eth_dev *dev,
5192 const struct rte_eth_fdir_filter *fdir_filter)
5196 ret = flow_fdir_filter_delete(dev, fdir_filter);
5199 return flow_fdir_filter_add(dev, fdir_filter);
5203 * Flush all filters.
5206 * Pointer to Ethernet device.
5209 flow_fdir_filter_flush(struct rte_eth_dev *dev)
5211 struct mlx5_priv *priv = dev->data->dev_private;
5213 mlx5_flow_list_flush(dev, &priv->flows);
5217 * Get flow director information.
5220 * Pointer to Ethernet device.
5221 * @param[out] fdir_info
5222 * Resulting flow director information.
5225 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
5227 struct rte_eth_fdir_masks *mask =
5228 &dev->data->dev_conf.fdir_conf.mask;
5230 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
5231 fdir_info->guarant_spc = 0;
5232 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
5233 fdir_info->max_flexpayload = 0;
5234 fdir_info->flow_types_mask[0] = 0;
5235 fdir_info->flex_payload_unit = 0;
5236 fdir_info->max_flex_payload_segment_num = 0;
5237 fdir_info->flex_payload_limit = 0;
5238 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
5242 * Deal with flow director operations.
5245 * Pointer to Ethernet device.
5247 * Operation to perform.
5249 * Pointer to operation-specific structure.
5252 * 0 on success, a negative errno value otherwise and rte_errno is set.
5255 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
5258 enum rte_fdir_mode fdir_mode =
5259 dev->data->dev_conf.fdir_conf.mode;
5261 if (filter_op == RTE_ETH_FILTER_NOP)
5263 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
5264 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
5265 DRV_LOG(ERR, "port %u flow director mode %d not supported",
5266 dev->data->port_id, fdir_mode);
5270 switch (filter_op) {
5271 case RTE_ETH_FILTER_ADD:
5272 return flow_fdir_filter_add(dev, arg);
5273 case RTE_ETH_FILTER_UPDATE:
5274 return flow_fdir_filter_update(dev, arg);
5275 case RTE_ETH_FILTER_DELETE:
5276 return flow_fdir_filter_delete(dev, arg);
5277 case RTE_ETH_FILTER_FLUSH:
5278 flow_fdir_filter_flush(dev);
5280 case RTE_ETH_FILTER_INFO:
5281 flow_fdir_info_get(dev, arg);
5284 DRV_LOG(DEBUG, "port %u unknown operation %u",
5285 dev->data->port_id, filter_op);
5293 * Manage filter operations.
5296 * Pointer to Ethernet device structure.
5297 * @param filter_type
5300 * Operation to perform.
5302 * Pointer to operation-specific structure.
5305 * 0 on success, a negative errno value otherwise and rte_errno is set.
5308 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
5309 enum rte_filter_type filter_type,
5310 enum rte_filter_op filter_op,
5313 switch (filter_type) {
5314 case RTE_ETH_FILTER_GENERIC:
5315 if (filter_op != RTE_ETH_FILTER_GET) {
5319 *(const void **)arg = &mlx5_flow_ops;
5321 case RTE_ETH_FILTER_FDIR:
5322 return flow_fdir_ctrl_func(dev, filter_op, arg);
5324 DRV_LOG(ERR, "port %u filter type (%d) not supported",
5325 dev->data->port_id, filter_type);
5326 rte_errno = ENOTSUP;
5333 * Create the needed meter and suffix tables.
5336 * Pointer to Ethernet device.
5338 * Pointer to the flow meter.
5341 * Pointer to table set on success, NULL otherwise.
5343 struct mlx5_meter_domains_infos *
5344 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
5345 const struct mlx5_flow_meter *fm)
5347 const struct mlx5_flow_driver_ops *fops;
5349 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5350 return fops->create_mtr_tbls(dev, fm);
5354 * Destroy the meter table set.
5357 * Pointer to Ethernet device.
5359 * Pointer to the meter table set.
5365 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
5366 struct mlx5_meter_domains_infos *tbls)
5368 const struct mlx5_flow_driver_ops *fops;
5370 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5371 return fops->destroy_mtr_tbls(dev, tbls);
5375 * Create policer rules.
5378 * Pointer to Ethernet device.
5380 * Pointer to flow meter structure.
5382 * Pointer to flow attributes.
5385 * 0 on success, -1 otherwise.
5388 mlx5_flow_create_policer_rules(struct rte_eth_dev *dev,
5389 struct mlx5_flow_meter *fm,
5390 const struct rte_flow_attr *attr)
5392 const struct mlx5_flow_driver_ops *fops;
5394 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5395 return fops->create_policer_rules(dev, fm, attr);
5399 * Destroy policer rules.
5402 * Pointer to flow meter structure.
5404 * Pointer to flow attributes.
5407 * 0 on success, -1 otherwise.
5410 mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev,
5411 struct mlx5_flow_meter *fm,
5412 const struct rte_flow_attr *attr)
5414 const struct mlx5_flow_driver_ops *fops;
5416 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5417 return fops->destroy_policer_rules(dev, fm, attr);
5421 * Allocate a counter.
5424 * Pointer to Ethernet device structure.
5427 * Pointer to allocated counter on success, NULL otherwise.
5429 struct mlx5_flow_counter *
5430 mlx5_counter_alloc(struct rte_eth_dev *dev)
5432 const struct mlx5_flow_driver_ops *fops;
5433 struct rte_flow_attr attr = { .transfer = 0 };
5435 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5436 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5437 return fops->counter_alloc(dev);
5440 "port %u counter allocate is not supported.",
5441 dev->data->port_id);
5449 * Pointer to Ethernet device structure.
5451 * Pointer to counter to be free.
5454 mlx5_counter_free(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt)
5456 const struct mlx5_flow_driver_ops *fops;
5457 struct rte_flow_attr attr = { .transfer = 0 };
5459 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5460 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5461 fops->counter_free(dev, cnt);
5465 "port %u counter free is not supported.",
5466 dev->data->port_id);
5470 * Query counter statistics.
5473 * Pointer to Ethernet device structure.
5475 * Pointer to counter to query.
5477 * Set to clear counter statistics.
5479 * The counter hits packets number to save.
5481 * The counter hits bytes number to save.
5484 * 0 on success, a negative errno value otherwise.
5487 mlx5_counter_query(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt,
5488 bool clear, uint64_t *pkts, uint64_t *bytes)
5490 const struct mlx5_flow_driver_ops *fops;
5491 struct rte_flow_attr attr = { .transfer = 0 };
5493 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5494 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5495 return fops->counter_query(dev, cnt, clear, pkts, bytes);
5498 "port %u counter query is not supported.",
5499 dev->data->port_id);
5503 #define MLX5_POOL_QUERY_FREQ_US 1000000
5506 * Set the periodic procedure for triggering asynchronous batch queries for all
5507 * the counter pools.
5510 * Pointer to mlx5_ibv_shared object.
5513 mlx5_set_query_alarm(struct mlx5_ibv_shared *sh)
5515 struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(sh, 0, 0);
5516 uint32_t pools_n = rte_atomic16_read(&cont->n_valid);
5519 cont = MLX5_CNT_CONTAINER(sh, 1, 0);
5520 pools_n += rte_atomic16_read(&cont->n_valid);
5521 us = MLX5_POOL_QUERY_FREQ_US / pools_n;
5522 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
5523 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
5524 sh->cmng.query_thread_on = 0;
5525 DRV_LOG(ERR, "Cannot reinitialize query alarm");
5527 sh->cmng.query_thread_on = 1;
5532 * The periodic procedure for triggering asynchronous batch queries for all the
5533 * counter pools. This function is probably called by the host thread.
5536 * The parameter for the alarm process.
5539 mlx5_flow_query_alarm(void *arg)
5541 struct mlx5_ibv_shared *sh = arg;
5542 struct mlx5_devx_obj *dcs;
5545 uint8_t batch = sh->cmng.batch;
5546 uint16_t pool_index = sh->cmng.pool_index;
5547 struct mlx5_pools_container *cont;
5548 struct mlx5_pools_container *mcont;
5549 struct mlx5_flow_counter_pool *pool;
5551 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
5554 cont = MLX5_CNT_CONTAINER(sh, batch, 1);
5555 mcont = MLX5_CNT_CONTAINER(sh, batch, 0);
5556 /* Check if resize was done and need to flip a container. */
5557 if (cont != mcont) {
5559 /* Clean the old container. */
5560 rte_free(cont->pools);
5561 memset(cont, 0, sizeof(*cont));
5564 /* Flip the host container. */
5565 sh->cmng.mhi[batch] ^= (uint8_t)2;
5569 /* 2 empty containers case is unexpected. */
5570 if (unlikely(batch != sh->cmng.batch))
5574 goto next_container;
5576 pool = cont->pools[pool_index];
5578 /* There is a pool query in progress. */
5581 LIST_FIRST(&sh->cmng.free_stat_raws);
5583 /* No free counter statistics raw memory. */
5585 dcs = (struct mlx5_devx_obj *)(uintptr_t)rte_atomic64_read
5587 offset = batch ? 0 : dcs->id % MLX5_COUNTERS_PER_POOL;
5588 ret = mlx5_devx_cmd_flow_counter_query(dcs, 0, MLX5_COUNTERS_PER_POOL -
5590 pool->raw_hw->mem_mng->dm->id,
5592 (pool->raw_hw->data + offset),
5594 (uint64_t)(uintptr_t)pool);
5596 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
5597 " %d", pool->min_dcs->id);
5598 pool->raw_hw = NULL;
5601 pool->raw_hw->min_dcs_id = dcs->id;
5602 LIST_REMOVE(pool->raw_hw, next);
5603 sh->cmng.pending_queries++;
5605 if (pool_index >= rte_atomic16_read(&cont->n_valid)) {
5610 sh->cmng.batch = batch;
5611 sh->cmng.pool_index = pool_index;
5612 mlx5_set_query_alarm(sh);
5616 * Handler for the HW respond about ready values from an asynchronous batch
5617 * query. This function is probably called by the host thread.
5620 * The pointer to the shared IB device context.
5621 * @param[in] async_id
5622 * The Devx async ID.
5624 * The status of the completion.
5627 mlx5_flow_async_pool_query_handle(struct mlx5_ibv_shared *sh,
5628 uint64_t async_id, int status)
5630 struct mlx5_flow_counter_pool *pool =
5631 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
5632 struct mlx5_counter_stats_raw *raw_to_free;
5634 if (unlikely(status)) {
5635 raw_to_free = pool->raw_hw;
5637 raw_to_free = pool->raw;
5638 rte_spinlock_lock(&pool->sl);
5639 pool->raw = pool->raw_hw;
5640 rte_spinlock_unlock(&pool->sl);
5641 rte_atomic64_add(&pool->query_gen, 1);
5642 /* Be sure the new raw counters data is updated in memory. */
5645 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
5646 pool->raw_hw = NULL;
5647 sh->cmng.pending_queries--;
5651 * Translate the rte_flow group index to HW table value.
5653 * @param[in] attributes
5654 * Pointer to flow attributes
5655 * @param[in] external
5656 * Value is part of flow rule created by request external to PMD.
5658 * rte_flow group index value.
5659 * @param[out] fdb_def_rule
5660 * Whether fdb jump to table 1 is configured.
5664 * Pointer to error structure.
5667 * 0 on success, a negative errno value otherwise and rte_errno is set.
5670 mlx5_flow_group_to_table(const struct rte_flow_attr *attributes, bool external,
5671 uint32_t group, bool fdb_def_rule, uint32_t *table,
5672 struct rte_flow_error *error)
5674 if (attributes->transfer && external && fdb_def_rule) {
5675 if (group == UINT32_MAX)
5676 return rte_flow_error_set
5678 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
5680 "group index not supported");
5689 * Discover availability of metadata reg_c's.
5691 * Iteratively use test flows to check availability.
5694 * Pointer to the Ethernet device structure.
5697 * 0 on success, a negative errno value otherwise and rte_errno is set.
5700 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
5702 struct mlx5_priv *priv = dev->data->dev_private;
5703 struct mlx5_dev_config *config = &priv->config;
5704 enum modify_reg idx;
5707 /* reg_c[0] and reg_c[1] are reserved. */
5708 config->flow_mreg_c[n++] = REG_C_0;
5709 config->flow_mreg_c[n++] = REG_C_1;
5710 /* Discover availability of other reg_c's. */
5711 for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
5712 struct rte_flow_attr attr = {
5713 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
5714 .priority = MLX5_FLOW_PRIO_RSVD,
5717 struct rte_flow_item items[] = {
5719 .type = RTE_FLOW_ITEM_TYPE_END,
5722 struct rte_flow_action actions[] = {
5724 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5725 .conf = &(struct mlx5_flow_action_copy_mreg){
5731 .type = RTE_FLOW_ACTION_TYPE_JUMP,
5732 .conf = &(struct rte_flow_action_jump){
5733 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5737 .type = RTE_FLOW_ACTION_TYPE_END,
5740 struct rte_flow *flow;
5741 struct rte_flow_error error;
5743 if (!config->dv_flow_en)
5745 /* Create internal flow, validation skips copy action. */
5746 flow = flow_list_create(dev, NULL, &attr, items,
5747 actions, false, &error);
5750 if (dev->data->dev_started || !flow_drv_apply(dev, flow, NULL))
5751 config->flow_mreg_c[n++] = idx;
5752 flow_list_destroy(dev, NULL, flow);
5754 for (; n < MLX5_MREG_C_NUM; ++n)
5755 config->flow_mreg_c[n] = REG_NONE;
5760 * Dump flow raw hw data to file
5763 * The pointer to Ethernet device.
5765 * A pointer to a file for output.
5767 * Perform verbose error reporting if not NULL. PMDs initialize this
5768 * structure in case of error only.
5770 * 0 on success, a nagative value otherwise.
5773 mlx5_flow_dev_dump(struct rte_eth_dev *dev,
5775 struct rte_flow_error *error __rte_unused)
5777 struct mlx5_priv *priv = dev->data->dev_private;
5778 struct mlx5_ibv_shared *sh = priv->sh;
5780 return mlx5_devx_cmd_flow_dump(sh->fdb_domain, sh->rx_domain,
5781 sh->tx_domain, file);