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>
31 #include "mlx5_defs.h"
32 #include "mlx5_flow.h"
33 #include "mlx5_glue.h"
35 #include "mlx5_rxtx.h"
37 /* Dev ops structure defined in mlx5.c */
38 extern const struct eth_dev_ops mlx5_dev_ops;
39 extern const struct eth_dev_ops mlx5_dev_ops_isolate;
41 /** Device flow drivers. */
42 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
43 extern const struct mlx5_flow_driver_ops mlx5_flow_dv_drv_ops;
45 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
47 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
49 const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
50 [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
51 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
52 [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
54 [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
55 [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
60 MLX5_EXPANSION_ROOT_OUTER,
61 MLX5_EXPANSION_ROOT_ETH_VLAN,
62 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
63 MLX5_EXPANSION_OUTER_ETH,
64 MLX5_EXPANSION_OUTER_ETH_VLAN,
65 MLX5_EXPANSION_OUTER_VLAN,
66 MLX5_EXPANSION_OUTER_IPV4,
67 MLX5_EXPANSION_OUTER_IPV4_UDP,
68 MLX5_EXPANSION_OUTER_IPV4_TCP,
69 MLX5_EXPANSION_OUTER_IPV6,
70 MLX5_EXPANSION_OUTER_IPV6_UDP,
71 MLX5_EXPANSION_OUTER_IPV6_TCP,
73 MLX5_EXPANSION_VXLAN_GPE,
77 MLX5_EXPANSION_ETH_VLAN,
80 MLX5_EXPANSION_IPV4_UDP,
81 MLX5_EXPANSION_IPV4_TCP,
83 MLX5_EXPANSION_IPV6_UDP,
84 MLX5_EXPANSION_IPV6_TCP,
87 /** Supported expansion of items. */
88 static const struct rte_flow_expand_node mlx5_support_expansion[] = {
89 [MLX5_EXPANSION_ROOT] = {
90 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
93 .type = RTE_FLOW_ITEM_TYPE_END,
95 [MLX5_EXPANSION_ROOT_OUTER] = {
96 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
97 MLX5_EXPANSION_OUTER_IPV4,
98 MLX5_EXPANSION_OUTER_IPV6),
99 .type = RTE_FLOW_ITEM_TYPE_END,
101 [MLX5_EXPANSION_ROOT_ETH_VLAN] = {
102 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
103 .type = RTE_FLOW_ITEM_TYPE_END,
105 [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
106 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH_VLAN),
107 .type = RTE_FLOW_ITEM_TYPE_END,
109 [MLX5_EXPANSION_OUTER_ETH] = {
110 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
111 MLX5_EXPANSION_OUTER_IPV6,
112 MLX5_EXPANSION_MPLS),
113 .type = RTE_FLOW_ITEM_TYPE_ETH,
116 [MLX5_EXPANSION_OUTER_ETH_VLAN] = {
117 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
118 .type = RTE_FLOW_ITEM_TYPE_ETH,
121 [MLX5_EXPANSION_OUTER_VLAN] = {
122 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
123 MLX5_EXPANSION_OUTER_IPV6),
124 .type = RTE_FLOW_ITEM_TYPE_VLAN,
126 [MLX5_EXPANSION_OUTER_IPV4] = {
127 .next = RTE_FLOW_EXPAND_RSS_NEXT
128 (MLX5_EXPANSION_OUTER_IPV4_UDP,
129 MLX5_EXPANSION_OUTER_IPV4_TCP,
132 MLX5_EXPANSION_IPV6),
133 .type = RTE_FLOW_ITEM_TYPE_IPV4,
134 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
135 ETH_RSS_NONFRAG_IPV4_OTHER,
137 [MLX5_EXPANSION_OUTER_IPV4_UDP] = {
138 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
139 MLX5_EXPANSION_VXLAN_GPE),
140 .type = RTE_FLOW_ITEM_TYPE_UDP,
141 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
143 [MLX5_EXPANSION_OUTER_IPV4_TCP] = {
144 .type = RTE_FLOW_ITEM_TYPE_TCP,
145 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
147 [MLX5_EXPANSION_OUTER_IPV6] = {
148 .next = RTE_FLOW_EXPAND_RSS_NEXT
149 (MLX5_EXPANSION_OUTER_IPV6_UDP,
150 MLX5_EXPANSION_OUTER_IPV6_TCP,
152 MLX5_EXPANSION_IPV6),
153 .type = RTE_FLOW_ITEM_TYPE_IPV6,
154 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
155 ETH_RSS_NONFRAG_IPV6_OTHER,
157 [MLX5_EXPANSION_OUTER_IPV6_UDP] = {
158 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
159 MLX5_EXPANSION_VXLAN_GPE),
160 .type = RTE_FLOW_ITEM_TYPE_UDP,
161 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
163 [MLX5_EXPANSION_OUTER_IPV6_TCP] = {
164 .type = RTE_FLOW_ITEM_TYPE_TCP,
165 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
167 [MLX5_EXPANSION_VXLAN] = {
168 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
169 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
171 [MLX5_EXPANSION_VXLAN_GPE] = {
172 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
174 MLX5_EXPANSION_IPV6),
175 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
177 [MLX5_EXPANSION_GRE] = {
178 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4),
179 .type = RTE_FLOW_ITEM_TYPE_GRE,
181 [MLX5_EXPANSION_MPLS] = {
182 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
183 MLX5_EXPANSION_IPV6),
184 .type = RTE_FLOW_ITEM_TYPE_MPLS,
186 [MLX5_EXPANSION_ETH] = {
187 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
188 MLX5_EXPANSION_IPV6),
189 .type = RTE_FLOW_ITEM_TYPE_ETH,
191 [MLX5_EXPANSION_ETH_VLAN] = {
192 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
193 .type = RTE_FLOW_ITEM_TYPE_ETH,
195 [MLX5_EXPANSION_VLAN] = {
196 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
197 MLX5_EXPANSION_IPV6),
198 .type = RTE_FLOW_ITEM_TYPE_VLAN,
200 [MLX5_EXPANSION_IPV4] = {
201 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
202 MLX5_EXPANSION_IPV4_TCP),
203 .type = RTE_FLOW_ITEM_TYPE_IPV4,
204 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
205 ETH_RSS_NONFRAG_IPV4_OTHER,
207 [MLX5_EXPANSION_IPV4_UDP] = {
208 .type = RTE_FLOW_ITEM_TYPE_UDP,
209 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
211 [MLX5_EXPANSION_IPV4_TCP] = {
212 .type = RTE_FLOW_ITEM_TYPE_TCP,
213 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
215 [MLX5_EXPANSION_IPV6] = {
216 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
217 MLX5_EXPANSION_IPV6_TCP),
218 .type = RTE_FLOW_ITEM_TYPE_IPV6,
219 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
220 ETH_RSS_NONFRAG_IPV6_OTHER,
222 [MLX5_EXPANSION_IPV6_UDP] = {
223 .type = RTE_FLOW_ITEM_TYPE_UDP,
224 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
226 [MLX5_EXPANSION_IPV6_TCP] = {
227 .type = RTE_FLOW_ITEM_TYPE_TCP,
228 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
232 static const struct rte_flow_ops mlx5_flow_ops = {
233 .validate = mlx5_flow_validate,
234 .create = mlx5_flow_create,
235 .destroy = mlx5_flow_destroy,
236 .flush = mlx5_flow_flush,
237 .isolate = mlx5_flow_isolate,
238 .query = mlx5_flow_query,
241 /* Convert FDIR request to Generic flow. */
243 struct rte_flow_attr attr;
244 struct rte_flow_item items[4];
245 struct rte_flow_item_eth l2;
246 struct rte_flow_item_eth l2_mask;
248 struct rte_flow_item_ipv4 ipv4;
249 struct rte_flow_item_ipv6 ipv6;
252 struct rte_flow_item_ipv4 ipv4;
253 struct rte_flow_item_ipv6 ipv6;
256 struct rte_flow_item_udp udp;
257 struct rte_flow_item_tcp tcp;
260 struct rte_flow_item_udp udp;
261 struct rte_flow_item_tcp tcp;
263 struct rte_flow_action actions[2];
264 struct rte_flow_action_queue queue;
267 /* Map of Verbs to Flow priority with 8 Verbs priorities. */
268 static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
269 { 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
272 /* Map of Verbs to Flow priority with 16 Verbs priorities. */
273 static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
274 { 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
275 { 9, 10, 11 }, { 12, 13, 14 },
278 /* Tunnel information. */
279 struct mlx5_flow_tunnel_info {
280 uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
281 uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
284 static struct mlx5_flow_tunnel_info tunnels_info[] = {
286 .tunnel = MLX5_FLOW_LAYER_VXLAN,
287 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
290 .tunnel = MLX5_FLOW_LAYER_GENEVE,
291 .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP,
294 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
295 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
298 .tunnel = MLX5_FLOW_LAYER_GRE,
299 .ptype = RTE_PTYPE_TUNNEL_GRE,
302 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
303 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
306 .tunnel = MLX5_FLOW_LAYER_MPLS,
307 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
310 .tunnel = MLX5_FLOW_LAYER_NVGRE,
311 .ptype = RTE_PTYPE_TUNNEL_NVGRE,
314 .tunnel = MLX5_FLOW_LAYER_IPIP,
315 .ptype = RTE_PTYPE_TUNNEL_IP,
318 .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP,
319 .ptype = RTE_PTYPE_TUNNEL_IP,
324 * Translate tag ID to register.
327 * Pointer to the Ethernet device structure.
329 * The feature that request the register.
331 * The request register ID.
333 * Error description in case of any.
336 * The request register on success, a negative errno
337 * value otherwise and rte_errno is set.
340 mlx5_flow_get_reg_id(struct rte_eth_dev *dev,
341 enum mlx5_feature_name feature,
343 struct rte_flow_error *error)
345 struct mlx5_priv *priv = dev->data->dev_private;
346 struct mlx5_dev_config *config = &priv->config;
347 enum modify_reg start_reg;
350 case MLX5_HAIRPIN_RX:
352 case MLX5_HAIRPIN_TX:
354 case MLX5_METADATA_RX:
355 switch (config->dv_xmeta_en) {
356 case MLX5_XMETA_MODE_LEGACY:
358 case MLX5_XMETA_MODE_META16:
360 case MLX5_XMETA_MODE_META32:
364 case MLX5_METADATA_TX:
366 case MLX5_METADATA_FDB:
369 switch (config->dv_xmeta_en) {
370 case MLX5_XMETA_MODE_LEGACY:
372 case MLX5_XMETA_MODE_META16:
374 case MLX5_XMETA_MODE_META32:
381 * Metadata COPY_MARK register using is in meter suffix sub
382 * flow while with meter. It's safe to share the same register.
384 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
386 RTE_ASSERT(priv->mtr_color_reg != REG_NONE);
387 return priv->mtr_color_reg;
390 * If meter is enable, it will engage two registers for color
391 * match and flow match. If meter color match is not using the
392 * REG_C_2, need to skip the REG_C_x be used by meter color
394 * If meter is disable, free to use all available registers.
396 if (priv->mtr_color_reg != REG_NONE)
397 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_3 :
401 if (id > (REG_C_7 - start_reg))
402 return rte_flow_error_set(error, EINVAL,
403 RTE_FLOW_ERROR_TYPE_ITEM,
404 NULL, "invalid tag id");
405 if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NONE)
406 return rte_flow_error_set(error, ENOTSUP,
407 RTE_FLOW_ERROR_TYPE_ITEM,
408 NULL, "unsupported tag id");
410 * This case means meter is using the REG_C_x great than 2.
411 * Take care not to conflict with meter color REG_C_x.
412 * If the available index REG_C_y >= REG_C_x, skip the
415 if (start_reg == REG_C_3 && config->flow_mreg_c
416 [id + REG_C_3 - REG_C_0] >= priv->mtr_color_reg) {
417 if (config->flow_mreg_c[id + 1 + REG_C_3 - REG_C_0] !=
419 return config->flow_mreg_c
420 [id + 1 + REG_C_3 - REG_C_0];
421 return rte_flow_error_set(error, ENOTSUP,
422 RTE_FLOW_ERROR_TYPE_ITEM,
423 NULL, "unsupported tag id");
425 return config->flow_mreg_c[id + start_reg - REG_C_0];
428 return rte_flow_error_set(error, EINVAL,
429 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
430 NULL, "invalid feature name");
434 * Check extensive flow metadata register support.
437 * Pointer to rte_eth_dev structure.
440 * True if device supports extensive flow metadata register, otherwise false.
443 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
445 struct mlx5_priv *priv = dev->data->dev_private;
446 struct mlx5_dev_config *config = &priv->config;
449 * Having available reg_c can be regarded inclusively as supporting
450 * extensive flow metadata register, which could mean,
451 * - metadata register copy action by modify header.
452 * - 16 modify header actions is supported.
453 * - reg_c's are preserved across different domain (FDB and NIC) on
454 * packet loopback by flow lookup miss.
456 return config->flow_mreg_c[2] != REG_NONE;
460 * Discover the maximum number of priority available.
463 * Pointer to the Ethernet device structure.
466 * number of supported flow priority on success, a negative errno
467 * value otherwise and rte_errno is set.
470 mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
472 struct mlx5_priv *priv = dev->data->dev_private;
474 struct ibv_flow_attr attr;
475 struct ibv_flow_spec_eth eth;
476 struct ibv_flow_spec_action_drop drop;
480 .port = (uint8_t)priv->ibv_port,
483 .type = IBV_FLOW_SPEC_ETH,
484 .size = sizeof(struct ibv_flow_spec_eth),
487 .size = sizeof(struct ibv_flow_spec_action_drop),
488 .type = IBV_FLOW_SPEC_ACTION_DROP,
491 struct ibv_flow *flow;
492 struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
493 uint16_t vprio[] = { 8, 16 };
501 for (i = 0; i != RTE_DIM(vprio); i++) {
502 flow_attr.attr.priority = vprio[i] - 1;
503 flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
506 claim_zero(mlx5_glue->destroy_flow(flow));
509 mlx5_hrxq_drop_release(dev);
512 priority = RTE_DIM(priority_map_3);
515 priority = RTE_DIM(priority_map_5);
520 "port %u verbs maximum priority: %d expected 8/16",
521 dev->data->port_id, priority);
524 DRV_LOG(INFO, "port %u flow maximum priority: %d",
525 dev->data->port_id, priority);
530 * Adjust flow priority based on the highest layer and the request priority.
533 * Pointer to the Ethernet device structure.
534 * @param[in] priority
535 * The rule base priority.
536 * @param[in] subpriority
537 * The priority based on the items.
542 uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
543 uint32_t subpriority)
546 struct mlx5_priv *priv = dev->data->dev_private;
548 switch (priv->config.flow_prio) {
549 case RTE_DIM(priority_map_3):
550 res = priority_map_3[priority][subpriority];
552 case RTE_DIM(priority_map_5):
553 res = priority_map_5[priority][subpriority];
560 * Verify the @p item specifications (spec, last, mask) are compatible with the
564 * Item specification.
566 * @p item->mask or flow default bit-masks.
567 * @param[in] nic_mask
568 * Bit-masks covering supported fields by the NIC to compare with user mask.
570 * Bit-masks size in bytes.
572 * Pointer to error structure.
575 * 0 on success, a negative errno value otherwise and rte_errno is set.
578 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
580 const uint8_t *nic_mask,
582 struct rte_flow_error *error)
587 for (i = 0; i < size; ++i)
588 if ((nic_mask[i] | mask[i]) != nic_mask[i])
589 return rte_flow_error_set(error, ENOTSUP,
590 RTE_FLOW_ERROR_TYPE_ITEM,
592 "mask enables non supported"
594 if (!item->spec && (item->mask || item->last))
595 return rte_flow_error_set(error, EINVAL,
596 RTE_FLOW_ERROR_TYPE_ITEM, item,
597 "mask/last without a spec is not"
599 if (item->spec && item->last) {
605 for (i = 0; i < size; ++i) {
606 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
607 last[i] = ((const uint8_t *)item->last)[i] & mask[i];
609 ret = memcmp(spec, last, size);
611 return rte_flow_error_set(error, EINVAL,
612 RTE_FLOW_ERROR_TYPE_ITEM,
614 "range is not valid");
620 * Adjust the hash fields according to the @p flow information.
622 * @param[in] dev_flow.
623 * Pointer to the mlx5_flow.
625 * 1 when the hash field is for a tunnel item.
626 * @param[in] layer_types
628 * @param[in] hash_fields
632 * The hash fields that should be used.
635 mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow,
636 int tunnel __rte_unused, uint64_t layer_types,
637 uint64_t hash_fields)
639 struct rte_flow *flow = dev_flow->flow;
640 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
641 int rss_request_inner = flow->rss.level >= 2;
643 /* Check RSS hash level for tunnel. */
644 if (tunnel && rss_request_inner)
645 hash_fields |= IBV_RX_HASH_INNER;
646 else if (tunnel || rss_request_inner)
649 /* Check if requested layer matches RSS hash fields. */
650 if (!(flow->rss.types & layer_types))
656 * Lookup and set the ptype in the data Rx part. A single Ptype can be used,
657 * if several tunnel rules are used on this queue, the tunnel ptype will be
661 * Rx queue to update.
664 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
667 uint32_t tunnel_ptype = 0;
669 /* Look up for the ptype to use. */
670 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
671 if (!rxq_ctrl->flow_tunnels_n[i])
674 tunnel_ptype = tunnels_info[i].ptype;
680 rxq_ctrl->rxq.tunnel = tunnel_ptype;
684 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
688 * Pointer to the Ethernet device structure.
689 * @param[in] dev_flow
690 * Pointer to device flow structure.
693 flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
695 struct mlx5_priv *priv = dev->data->dev_private;
696 struct rte_flow *flow = dev_flow->flow;
697 const int mark = !!(dev_flow->actions &
698 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
699 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
702 for (i = 0; i != flow->rss.queue_num; ++i) {
703 int idx = (*flow->rss.queue)[i];
704 struct mlx5_rxq_ctrl *rxq_ctrl =
705 container_of((*priv->rxqs)[idx],
706 struct mlx5_rxq_ctrl, rxq);
709 * To support metadata register copy on Tx loopback,
710 * this must be always enabled (metadata may arive
711 * from other port - not from local flows only.
713 if (priv->config.dv_flow_en &&
714 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
715 mlx5_flow_ext_mreg_supported(dev)) {
716 rxq_ctrl->rxq.mark = 1;
717 rxq_ctrl->flow_mark_n = 1;
719 rxq_ctrl->rxq.mark = 1;
720 rxq_ctrl->flow_mark_n++;
725 /* Increase the counter matching the flow. */
726 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
727 if ((tunnels_info[j].tunnel &
729 tunnels_info[j].tunnel) {
730 rxq_ctrl->flow_tunnels_n[j]++;
734 flow_rxq_tunnel_ptype_update(rxq_ctrl);
740 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
743 * Pointer to the Ethernet device structure.
745 * Pointer to flow structure.
748 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
750 struct mlx5_flow *dev_flow;
752 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
753 flow_drv_rxq_flags_set(dev, dev_flow);
757 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
758 * device flow if no other flow uses it with the same kind of request.
761 * Pointer to Ethernet device.
762 * @param[in] dev_flow
763 * Pointer to the device flow.
766 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
768 struct mlx5_priv *priv = dev->data->dev_private;
769 struct rte_flow *flow = dev_flow->flow;
770 const int mark = !!(dev_flow->actions &
771 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
772 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
775 assert(dev->data->dev_started);
776 for (i = 0; i != flow->rss.queue_num; ++i) {
777 int idx = (*flow->rss.queue)[i];
778 struct mlx5_rxq_ctrl *rxq_ctrl =
779 container_of((*priv->rxqs)[idx],
780 struct mlx5_rxq_ctrl, rxq);
782 if (priv->config.dv_flow_en &&
783 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
784 mlx5_flow_ext_mreg_supported(dev)) {
785 rxq_ctrl->rxq.mark = 1;
786 rxq_ctrl->flow_mark_n = 1;
788 rxq_ctrl->flow_mark_n--;
789 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
794 /* Decrease the counter matching the flow. */
795 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
796 if ((tunnels_info[j].tunnel &
798 tunnels_info[j].tunnel) {
799 rxq_ctrl->flow_tunnels_n[j]--;
803 flow_rxq_tunnel_ptype_update(rxq_ctrl);
809 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
810 * @p flow if no other flow uses it with the same kind of request.
813 * Pointer to Ethernet device.
815 * Pointer to the flow.
818 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
820 struct mlx5_flow *dev_flow;
822 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
823 flow_drv_rxq_flags_trim(dev, dev_flow);
827 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
830 * Pointer to Ethernet device.
833 flow_rxq_flags_clear(struct rte_eth_dev *dev)
835 struct mlx5_priv *priv = dev->data->dev_private;
838 for (i = 0; i != priv->rxqs_n; ++i) {
839 struct mlx5_rxq_ctrl *rxq_ctrl;
842 if (!(*priv->rxqs)[i])
844 rxq_ctrl = container_of((*priv->rxqs)[i],
845 struct mlx5_rxq_ctrl, rxq);
846 rxq_ctrl->flow_mark_n = 0;
847 rxq_ctrl->rxq.mark = 0;
848 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
849 rxq_ctrl->flow_tunnels_n[j] = 0;
850 rxq_ctrl->rxq.tunnel = 0;
855 * return a pointer to the desired action in the list of actions.
858 * The list of actions to search the action in.
860 * The action to find.
863 * Pointer to the action in the list, if found. NULL otherwise.
865 const struct rte_flow_action *
866 mlx5_flow_find_action(const struct rte_flow_action *actions,
867 enum rte_flow_action_type action)
871 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
872 if (actions->type == action)
878 * Validate the flag action.
880 * @param[in] action_flags
881 * Bit-fields that holds the actions detected until now.
883 * Attributes of flow that includes this action.
885 * Pointer to error structure.
888 * 0 on success, a negative errno value otherwise and rte_errno is set.
891 mlx5_flow_validate_action_flag(uint64_t action_flags,
892 const struct rte_flow_attr *attr,
893 struct rte_flow_error *error)
896 if (action_flags & MLX5_FLOW_ACTION_DROP)
897 return rte_flow_error_set(error, EINVAL,
898 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
899 "can't drop and flag in same flow");
900 if (action_flags & MLX5_FLOW_ACTION_MARK)
901 return rte_flow_error_set(error, EINVAL,
902 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
903 "can't mark and flag in same flow");
904 if (action_flags & MLX5_FLOW_ACTION_FLAG)
905 return rte_flow_error_set(error, EINVAL,
906 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
908 " actions in same flow");
910 return rte_flow_error_set(error, ENOTSUP,
911 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
912 "flag action not supported for "
918 * Validate the mark action.
921 * Pointer to the queue action.
922 * @param[in] action_flags
923 * Bit-fields that holds the actions detected until now.
925 * Attributes of flow that includes this action.
927 * Pointer to error structure.
930 * 0 on success, a negative errno value otherwise and rte_errno is set.
933 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
934 uint64_t action_flags,
935 const struct rte_flow_attr *attr,
936 struct rte_flow_error *error)
938 const struct rte_flow_action_mark *mark = action->conf;
941 return rte_flow_error_set(error, EINVAL,
942 RTE_FLOW_ERROR_TYPE_ACTION,
944 "configuration cannot be null");
945 if (mark->id >= MLX5_FLOW_MARK_MAX)
946 return rte_flow_error_set(error, EINVAL,
947 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
949 "mark id must in 0 <= id < "
950 RTE_STR(MLX5_FLOW_MARK_MAX));
951 if (action_flags & MLX5_FLOW_ACTION_DROP)
952 return rte_flow_error_set(error, EINVAL,
953 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
954 "can't drop and mark in same flow");
955 if (action_flags & MLX5_FLOW_ACTION_FLAG)
956 return rte_flow_error_set(error, EINVAL,
957 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
958 "can't flag and mark in same flow");
959 if (action_flags & MLX5_FLOW_ACTION_MARK)
960 return rte_flow_error_set(error, EINVAL,
961 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
962 "can't have 2 mark actions in same"
965 return rte_flow_error_set(error, ENOTSUP,
966 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
967 "mark action not supported for "
973 * Validate the drop action.
975 * @param[in] action_flags
976 * Bit-fields that holds the actions detected until now.
978 * Attributes of flow that includes this action.
980 * Pointer to error structure.
983 * 0 on success, a negative errno value otherwise and rte_errno is set.
986 mlx5_flow_validate_action_drop(uint64_t action_flags,
987 const struct rte_flow_attr *attr,
988 struct rte_flow_error *error)
990 if (action_flags & MLX5_FLOW_ACTION_FLAG)
991 return rte_flow_error_set(error, EINVAL,
992 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
993 "can't drop and flag in same flow");
994 if (action_flags & MLX5_FLOW_ACTION_MARK)
995 return rte_flow_error_set(error, EINVAL,
996 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
997 "can't drop and mark in same flow");
998 if (action_flags & (MLX5_FLOW_FATE_ACTIONS |
999 MLX5_FLOW_FATE_ESWITCH_ACTIONS))
1000 return rte_flow_error_set(error, EINVAL,
1001 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1002 "can't have 2 fate actions in"
1005 return rte_flow_error_set(error, ENOTSUP,
1006 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1007 "drop action not supported for "
1013 * Validate the queue action.
1016 * Pointer to the queue action.
1017 * @param[in] action_flags
1018 * Bit-fields that holds the actions detected until now.
1020 * Pointer to the Ethernet device structure.
1022 * Attributes of flow that includes this action.
1024 * Pointer to error structure.
1027 * 0 on success, a negative errno value otherwise and rte_errno is set.
1030 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
1031 uint64_t action_flags,
1032 struct rte_eth_dev *dev,
1033 const struct rte_flow_attr *attr,
1034 struct rte_flow_error *error)
1036 struct mlx5_priv *priv = dev->data->dev_private;
1037 const struct rte_flow_action_queue *queue = action->conf;
1039 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1040 return rte_flow_error_set(error, EINVAL,
1041 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1042 "can't have 2 fate actions in"
1045 return rte_flow_error_set(error, EINVAL,
1046 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1047 NULL, "No Rx queues configured");
1048 if (queue->index >= priv->rxqs_n)
1049 return rte_flow_error_set(error, EINVAL,
1050 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1052 "queue index out of range");
1053 if (!(*priv->rxqs)[queue->index])
1054 return rte_flow_error_set(error, EINVAL,
1055 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1057 "queue is not configured");
1059 return rte_flow_error_set(error, ENOTSUP,
1060 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1061 "queue action not supported for "
1067 * Validate the rss action.
1070 * Pointer to the queue action.
1071 * @param[in] action_flags
1072 * Bit-fields that holds the actions detected until now.
1074 * Pointer to the Ethernet device structure.
1076 * Attributes of flow that includes this action.
1077 * @param[in] item_flags
1078 * Items that were detected.
1080 * Pointer to error structure.
1083 * 0 on success, a negative errno value otherwise and rte_errno is set.
1086 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
1087 uint64_t action_flags,
1088 struct rte_eth_dev *dev,
1089 const struct rte_flow_attr *attr,
1090 uint64_t item_flags,
1091 struct rte_flow_error *error)
1093 struct mlx5_priv *priv = dev->data->dev_private;
1094 const struct rte_flow_action_rss *rss = action->conf;
1095 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1098 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1099 return rte_flow_error_set(error, EINVAL,
1100 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1101 "can't have 2 fate actions"
1103 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1104 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
1105 return rte_flow_error_set(error, ENOTSUP,
1106 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1108 "RSS hash function not supported");
1109 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1114 return rte_flow_error_set(error, ENOTSUP,
1115 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1117 "tunnel RSS is not supported");
1118 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
1119 if (rss->key_len == 0 && rss->key != NULL)
1120 return rte_flow_error_set(error, ENOTSUP,
1121 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1123 "RSS hash key length 0");
1124 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
1125 return rte_flow_error_set(error, ENOTSUP,
1126 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1128 "RSS hash key too small");
1129 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
1130 return rte_flow_error_set(error, ENOTSUP,
1131 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1133 "RSS hash key too large");
1134 if (rss->queue_num > priv->config.ind_table_max_size)
1135 return rte_flow_error_set(error, ENOTSUP,
1136 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1138 "number of queues too large");
1139 if (rss->types & MLX5_RSS_HF_MASK)
1140 return rte_flow_error_set(error, ENOTSUP,
1141 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1143 "some RSS protocols are not"
1146 return rte_flow_error_set(error, EINVAL,
1147 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1148 NULL, "No Rx queues configured");
1149 if (!rss->queue_num)
1150 return rte_flow_error_set(error, EINVAL,
1151 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1152 NULL, "No queues configured");
1153 for (i = 0; i != rss->queue_num; ++i) {
1154 if (!(*priv->rxqs)[rss->queue[i]])
1155 return rte_flow_error_set
1156 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1157 &rss->queue[i], "queue is not configured");
1160 return rte_flow_error_set(error, ENOTSUP,
1161 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1162 "rss action not supported for "
1164 if (rss->level > 1 && !tunnel)
1165 return rte_flow_error_set(error, EINVAL,
1166 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1167 "inner RSS is not supported for "
1168 "non-tunnel flows");
1173 * Validate the count action.
1176 * Pointer to the Ethernet device structure.
1178 * Attributes of flow that includes this action.
1180 * Pointer to error structure.
1183 * 0 on success, a negative errno value otherwise and rte_errno is set.
1186 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
1187 const struct rte_flow_attr *attr,
1188 struct rte_flow_error *error)
1191 return rte_flow_error_set(error, ENOTSUP,
1192 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1193 "count action not supported for "
1199 * Verify the @p attributes will be correctly understood by the NIC and store
1200 * them in the @p flow if everything is correct.
1203 * Pointer to the Ethernet device structure.
1204 * @param[in] attributes
1205 * Pointer to flow attributes
1207 * Pointer to error structure.
1210 * 0 on success, a negative errno value otherwise and rte_errno is set.
1213 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1214 const struct rte_flow_attr *attributes,
1215 struct rte_flow_error *error)
1217 struct mlx5_priv *priv = dev->data->dev_private;
1218 uint32_t priority_max = priv->config.flow_prio - 1;
1220 if (attributes->group)
1221 return rte_flow_error_set(error, ENOTSUP,
1222 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1223 NULL, "groups is not supported");
1224 if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
1225 attributes->priority >= priority_max)
1226 return rte_flow_error_set(error, ENOTSUP,
1227 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1228 NULL, "priority out of range");
1229 if (attributes->egress)
1230 return rte_flow_error_set(error, ENOTSUP,
1231 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1232 "egress is not supported");
1233 if (attributes->transfer && !priv->config.dv_esw_en)
1234 return rte_flow_error_set(error, ENOTSUP,
1235 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1236 NULL, "transfer is not supported");
1237 if (!attributes->ingress)
1238 return rte_flow_error_set(error, EINVAL,
1239 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1241 "ingress attribute is mandatory");
1246 * Validate ICMP6 item.
1249 * Item specification.
1250 * @param[in] item_flags
1251 * Bit-fields that holds the items detected until now.
1253 * Pointer to error structure.
1256 * 0 on success, a negative errno value otherwise and rte_errno is set.
1259 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
1260 uint64_t item_flags,
1261 uint8_t target_protocol,
1262 struct rte_flow_error *error)
1264 const struct rte_flow_item_icmp6 *mask = item->mask;
1265 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1266 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1267 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1268 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1269 MLX5_FLOW_LAYER_OUTER_L4;
1272 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
1273 return rte_flow_error_set(error, EINVAL,
1274 RTE_FLOW_ERROR_TYPE_ITEM, item,
1275 "protocol filtering not compatible"
1276 " with ICMP6 layer");
1277 if (!(item_flags & l3m))
1278 return rte_flow_error_set(error, EINVAL,
1279 RTE_FLOW_ERROR_TYPE_ITEM, item,
1280 "IPv6 is mandatory to filter on"
1282 if (item_flags & l4m)
1283 return rte_flow_error_set(error, EINVAL,
1284 RTE_FLOW_ERROR_TYPE_ITEM, item,
1285 "multiple L4 layers not supported");
1287 mask = &rte_flow_item_icmp6_mask;
1288 ret = mlx5_flow_item_acceptable
1289 (item, (const uint8_t *)mask,
1290 (const uint8_t *)&rte_flow_item_icmp6_mask,
1291 sizeof(struct rte_flow_item_icmp6), error);
1298 * Validate ICMP item.
1301 * Item specification.
1302 * @param[in] item_flags
1303 * Bit-fields that holds the items detected until now.
1305 * Pointer to error structure.
1308 * 0 on success, a negative errno value otherwise and rte_errno is set.
1311 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
1312 uint64_t item_flags,
1313 uint8_t target_protocol,
1314 struct rte_flow_error *error)
1316 const struct rte_flow_item_icmp *mask = item->mask;
1317 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1318 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1319 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1320 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1321 MLX5_FLOW_LAYER_OUTER_L4;
1324 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
1325 return rte_flow_error_set(error, EINVAL,
1326 RTE_FLOW_ERROR_TYPE_ITEM, item,
1327 "protocol filtering not compatible"
1328 " with ICMP layer");
1329 if (!(item_flags & l3m))
1330 return rte_flow_error_set(error, EINVAL,
1331 RTE_FLOW_ERROR_TYPE_ITEM, item,
1332 "IPv4 is mandatory to filter"
1334 if (item_flags & l4m)
1335 return rte_flow_error_set(error, EINVAL,
1336 RTE_FLOW_ERROR_TYPE_ITEM, item,
1337 "multiple L4 layers not supported");
1339 mask = &rte_flow_item_icmp_mask;
1340 ret = mlx5_flow_item_acceptable
1341 (item, (const uint8_t *)mask,
1342 (const uint8_t *)&rte_flow_item_icmp_mask,
1343 sizeof(struct rte_flow_item_icmp), error);
1350 * Validate Ethernet item.
1353 * Item specification.
1354 * @param[in] item_flags
1355 * Bit-fields that holds the items detected until now.
1357 * Pointer to error structure.
1360 * 0 on success, a negative errno value otherwise and rte_errno is set.
1363 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1364 uint64_t item_flags,
1365 struct rte_flow_error *error)
1367 const struct rte_flow_item_eth *mask = item->mask;
1368 const struct rte_flow_item_eth nic_mask = {
1369 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1370 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1371 .type = RTE_BE16(0xffff),
1374 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1375 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1376 MLX5_FLOW_LAYER_OUTER_L2;
1378 if (item_flags & ethm)
1379 return rte_flow_error_set(error, ENOTSUP,
1380 RTE_FLOW_ERROR_TYPE_ITEM, item,
1381 "multiple L2 layers not supported");
1382 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
1383 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
1384 return rte_flow_error_set(error, EINVAL,
1385 RTE_FLOW_ERROR_TYPE_ITEM, item,
1386 "L2 layer should not follow "
1388 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
1389 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
1390 return rte_flow_error_set(error, EINVAL,
1391 RTE_FLOW_ERROR_TYPE_ITEM, item,
1392 "L2 layer should not follow VLAN");
1394 mask = &rte_flow_item_eth_mask;
1395 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1396 (const uint8_t *)&nic_mask,
1397 sizeof(struct rte_flow_item_eth),
1403 * Validate VLAN item.
1406 * Item specification.
1407 * @param[in] item_flags
1408 * Bit-fields that holds the items detected until now.
1410 * Ethernet device flow is being created on.
1412 * Pointer to error structure.
1415 * 0 on success, a negative errno value otherwise and rte_errno is set.
1418 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1419 uint64_t item_flags,
1420 struct rte_eth_dev *dev,
1421 struct rte_flow_error *error)
1423 const struct rte_flow_item_vlan *spec = item->spec;
1424 const struct rte_flow_item_vlan *mask = item->mask;
1425 const struct rte_flow_item_vlan nic_mask = {
1426 .tci = RTE_BE16(UINT16_MAX),
1427 .inner_type = RTE_BE16(UINT16_MAX),
1429 uint16_t vlan_tag = 0;
1430 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1432 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1433 MLX5_FLOW_LAYER_INNER_L4) :
1434 (MLX5_FLOW_LAYER_OUTER_L3 |
1435 MLX5_FLOW_LAYER_OUTER_L4);
1436 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1437 MLX5_FLOW_LAYER_OUTER_VLAN;
1439 if (item_flags & vlanm)
1440 return rte_flow_error_set(error, EINVAL,
1441 RTE_FLOW_ERROR_TYPE_ITEM, item,
1442 "multiple VLAN layers not supported");
1443 else if ((item_flags & l34m) != 0)
1444 return rte_flow_error_set(error, EINVAL,
1445 RTE_FLOW_ERROR_TYPE_ITEM, item,
1446 "VLAN cannot follow L3/L4 layer");
1448 mask = &rte_flow_item_vlan_mask;
1449 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1450 (const uint8_t *)&nic_mask,
1451 sizeof(struct rte_flow_item_vlan),
1455 if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
1456 struct mlx5_priv *priv = dev->data->dev_private;
1458 if (priv->vmwa_context) {
1460 * Non-NULL context means we have a virtual machine
1461 * and SR-IOV enabled, we have to create VLAN interface
1462 * to make hypervisor to setup E-Switch vport
1463 * context correctly. We avoid creating the multiple
1464 * VLAN interfaces, so we cannot support VLAN tag mask.
1466 return rte_flow_error_set(error, EINVAL,
1467 RTE_FLOW_ERROR_TYPE_ITEM,
1469 "VLAN tag mask is not"
1470 " supported in virtual"
1475 vlan_tag = spec->tci;
1476 vlan_tag &= mask->tci;
1479 * From verbs perspective an empty VLAN is equivalent
1480 * to a packet without VLAN layer.
1483 return rte_flow_error_set(error, EINVAL,
1484 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1486 "VLAN cannot be empty");
1491 * Validate IPV4 item.
1494 * Item specification.
1495 * @param[in] item_flags
1496 * Bit-fields that holds the items detected until now.
1497 * @param[in] acc_mask
1498 * Acceptable mask, if NULL default internal default mask
1499 * will be used to check whether item fields are supported.
1501 * Pointer to error structure.
1504 * 0 on success, a negative errno value otherwise and rte_errno is set.
1507 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
1508 uint64_t item_flags,
1510 uint16_t ether_type,
1511 const struct rte_flow_item_ipv4 *acc_mask,
1512 struct rte_flow_error *error)
1514 const struct rte_flow_item_ipv4 *mask = item->mask;
1515 const struct rte_flow_item_ipv4 *spec = item->spec;
1516 const struct rte_flow_item_ipv4 nic_mask = {
1518 .src_addr = RTE_BE32(0xffffffff),
1519 .dst_addr = RTE_BE32(0xffffffff),
1520 .type_of_service = 0xff,
1521 .next_proto_id = 0xff,
1524 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1525 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1526 MLX5_FLOW_LAYER_OUTER_L3;
1527 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1528 MLX5_FLOW_LAYER_OUTER_L4;
1530 uint8_t next_proto = 0xFF;
1531 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1532 MLX5_FLOW_LAYER_OUTER_VLAN |
1533 MLX5_FLOW_LAYER_INNER_VLAN);
1535 if ((last_item & l2_vlan) && ether_type &&
1536 ether_type != RTE_ETHER_TYPE_IPV4)
1537 return rte_flow_error_set(error, EINVAL,
1538 RTE_FLOW_ERROR_TYPE_ITEM, item,
1539 "IPv4 cannot follow L2/VLAN layer "
1540 "which ether type is not IPv4");
1541 if (item_flags & MLX5_FLOW_LAYER_IPIP) {
1543 next_proto = mask->hdr.next_proto_id &
1544 spec->hdr.next_proto_id;
1545 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1546 return rte_flow_error_set(error, EINVAL,
1547 RTE_FLOW_ERROR_TYPE_ITEM,
1552 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
1553 return rte_flow_error_set(error, EINVAL,
1554 RTE_FLOW_ERROR_TYPE_ITEM, item,
1555 "wrong tunnel type - IPv6 specified "
1556 "but IPv4 item provided");
1557 if (item_flags & l3m)
1558 return rte_flow_error_set(error, ENOTSUP,
1559 RTE_FLOW_ERROR_TYPE_ITEM, item,
1560 "multiple L3 layers not supported");
1561 else if (item_flags & l4m)
1562 return rte_flow_error_set(error, EINVAL,
1563 RTE_FLOW_ERROR_TYPE_ITEM, item,
1564 "L3 cannot follow an L4 layer.");
1565 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1566 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1567 return rte_flow_error_set(error, EINVAL,
1568 RTE_FLOW_ERROR_TYPE_ITEM, item,
1569 "L3 cannot follow an NVGRE layer.");
1571 mask = &rte_flow_item_ipv4_mask;
1572 else if (mask->hdr.next_proto_id != 0 &&
1573 mask->hdr.next_proto_id != 0xff)
1574 return rte_flow_error_set(error, EINVAL,
1575 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1576 "partial mask is not supported"
1578 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1579 acc_mask ? (const uint8_t *)acc_mask
1580 : (const uint8_t *)&nic_mask,
1581 sizeof(struct rte_flow_item_ipv4),
1589 * Validate IPV6 item.
1592 * Item specification.
1593 * @param[in] item_flags
1594 * Bit-fields that holds the items detected until now.
1595 * @param[in] acc_mask
1596 * Acceptable mask, if NULL default internal default mask
1597 * will be used to check whether item fields are supported.
1599 * Pointer to error structure.
1602 * 0 on success, a negative errno value otherwise and rte_errno is set.
1605 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
1606 uint64_t item_flags,
1608 uint16_t ether_type,
1609 const struct rte_flow_item_ipv6 *acc_mask,
1610 struct rte_flow_error *error)
1612 const struct rte_flow_item_ipv6 *mask = item->mask;
1613 const struct rte_flow_item_ipv6 *spec = item->spec;
1614 const struct rte_flow_item_ipv6 nic_mask = {
1617 "\xff\xff\xff\xff\xff\xff\xff\xff"
1618 "\xff\xff\xff\xff\xff\xff\xff\xff",
1620 "\xff\xff\xff\xff\xff\xff\xff\xff"
1621 "\xff\xff\xff\xff\xff\xff\xff\xff",
1622 .vtc_flow = RTE_BE32(0xffffffff),
1627 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1628 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1629 MLX5_FLOW_LAYER_OUTER_L3;
1630 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1631 MLX5_FLOW_LAYER_OUTER_L4;
1633 uint8_t next_proto = 0xFF;
1634 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1635 MLX5_FLOW_LAYER_OUTER_VLAN |
1636 MLX5_FLOW_LAYER_INNER_VLAN);
1638 if ((last_item & l2_vlan) && ether_type &&
1639 ether_type != RTE_ETHER_TYPE_IPV6)
1640 return rte_flow_error_set(error, EINVAL,
1641 RTE_FLOW_ERROR_TYPE_ITEM, item,
1642 "IPv6 cannot follow L2/VLAN layer "
1643 "which ether type is not IPv6");
1644 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
1646 next_proto = mask->hdr.proto & spec->hdr.proto;
1647 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1648 return rte_flow_error_set(error, EINVAL,
1649 RTE_FLOW_ERROR_TYPE_ITEM,
1654 if (item_flags & MLX5_FLOW_LAYER_IPIP)
1655 return rte_flow_error_set(error, EINVAL,
1656 RTE_FLOW_ERROR_TYPE_ITEM, item,
1657 "wrong tunnel type - IPv4 specified "
1658 "but IPv6 item provided");
1659 if (item_flags & l3m)
1660 return rte_flow_error_set(error, ENOTSUP,
1661 RTE_FLOW_ERROR_TYPE_ITEM, item,
1662 "multiple L3 layers not supported");
1663 else if (item_flags & l4m)
1664 return rte_flow_error_set(error, EINVAL,
1665 RTE_FLOW_ERROR_TYPE_ITEM, item,
1666 "L3 cannot follow an L4 layer.");
1667 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1668 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1669 return rte_flow_error_set(error, EINVAL,
1670 RTE_FLOW_ERROR_TYPE_ITEM, item,
1671 "L3 cannot follow an NVGRE layer.");
1673 mask = &rte_flow_item_ipv6_mask;
1674 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1675 acc_mask ? (const uint8_t *)acc_mask
1676 : (const uint8_t *)&nic_mask,
1677 sizeof(struct rte_flow_item_ipv6),
1685 * Validate UDP item.
1688 * Item specification.
1689 * @param[in] item_flags
1690 * Bit-fields that holds the items detected until now.
1691 * @param[in] target_protocol
1692 * The next protocol in the previous item.
1693 * @param[in] flow_mask
1694 * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
1696 * Pointer to error structure.
1699 * 0 on success, a negative errno value otherwise and rte_errno is set.
1702 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
1703 uint64_t item_flags,
1704 uint8_t target_protocol,
1705 struct rte_flow_error *error)
1707 const struct rte_flow_item_udp *mask = item->mask;
1708 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1709 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1710 MLX5_FLOW_LAYER_OUTER_L3;
1711 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1712 MLX5_FLOW_LAYER_OUTER_L4;
1715 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
1716 return rte_flow_error_set(error, EINVAL,
1717 RTE_FLOW_ERROR_TYPE_ITEM, item,
1718 "protocol filtering not compatible"
1720 if (!(item_flags & l3m))
1721 return rte_flow_error_set(error, EINVAL,
1722 RTE_FLOW_ERROR_TYPE_ITEM, item,
1723 "L3 is mandatory to filter on L4");
1724 if (item_flags & l4m)
1725 return rte_flow_error_set(error, EINVAL,
1726 RTE_FLOW_ERROR_TYPE_ITEM, item,
1727 "multiple L4 layers not supported");
1729 mask = &rte_flow_item_udp_mask;
1730 ret = mlx5_flow_item_acceptable
1731 (item, (const uint8_t *)mask,
1732 (const uint8_t *)&rte_flow_item_udp_mask,
1733 sizeof(struct rte_flow_item_udp), error);
1740 * Validate TCP item.
1743 * Item specification.
1744 * @param[in] item_flags
1745 * Bit-fields that holds the items detected until now.
1746 * @param[in] target_protocol
1747 * The next protocol in the previous item.
1749 * Pointer to error structure.
1752 * 0 on success, a negative errno value otherwise and rte_errno is set.
1755 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
1756 uint64_t item_flags,
1757 uint8_t target_protocol,
1758 const struct rte_flow_item_tcp *flow_mask,
1759 struct rte_flow_error *error)
1761 const struct rte_flow_item_tcp *mask = item->mask;
1762 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1763 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1764 MLX5_FLOW_LAYER_OUTER_L3;
1765 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1766 MLX5_FLOW_LAYER_OUTER_L4;
1770 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
1771 return rte_flow_error_set(error, EINVAL,
1772 RTE_FLOW_ERROR_TYPE_ITEM, item,
1773 "protocol filtering not compatible"
1775 if (!(item_flags & l3m))
1776 return rte_flow_error_set(error, EINVAL,
1777 RTE_FLOW_ERROR_TYPE_ITEM, item,
1778 "L3 is mandatory to filter on L4");
1779 if (item_flags & l4m)
1780 return rte_flow_error_set(error, EINVAL,
1781 RTE_FLOW_ERROR_TYPE_ITEM, item,
1782 "multiple L4 layers not supported");
1784 mask = &rte_flow_item_tcp_mask;
1785 ret = mlx5_flow_item_acceptable
1786 (item, (const uint8_t *)mask,
1787 (const uint8_t *)flow_mask,
1788 sizeof(struct rte_flow_item_tcp), error);
1795 * Validate VXLAN item.
1798 * Item specification.
1799 * @param[in] item_flags
1800 * Bit-fields that holds the items detected until now.
1801 * @param[in] target_protocol
1802 * The next protocol in the previous item.
1804 * Pointer to error structure.
1807 * 0 on success, a negative errno value otherwise and rte_errno is set.
1810 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
1811 uint64_t item_flags,
1812 struct rte_flow_error *error)
1814 const struct rte_flow_item_vxlan *spec = item->spec;
1815 const struct rte_flow_item_vxlan *mask = item->mask;
1820 } id = { .vlan_id = 0, };
1821 uint32_t vlan_id = 0;
1824 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1825 return rte_flow_error_set(error, ENOTSUP,
1826 RTE_FLOW_ERROR_TYPE_ITEM, item,
1827 "multiple tunnel layers not"
1830 * Verify only UDPv4 is present as defined in
1831 * https://tools.ietf.org/html/rfc7348
1833 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1834 return rte_flow_error_set(error, EINVAL,
1835 RTE_FLOW_ERROR_TYPE_ITEM, item,
1836 "no outer UDP layer found");
1838 mask = &rte_flow_item_vxlan_mask;
1839 ret = mlx5_flow_item_acceptable
1840 (item, (const uint8_t *)mask,
1841 (const uint8_t *)&rte_flow_item_vxlan_mask,
1842 sizeof(struct rte_flow_item_vxlan),
1847 memcpy(&id.vni[1], spec->vni, 3);
1848 vlan_id = id.vlan_id;
1849 memcpy(&id.vni[1], mask->vni, 3);
1850 vlan_id &= id.vlan_id;
1853 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if
1854 * only this layer is defined in the Verbs specification it is
1855 * interpreted as wildcard and all packets will match this
1856 * rule, if it follows a full stack layer (ex: eth / ipv4 /
1857 * udp), all packets matching the layers before will also
1858 * match this rule. To avoid such situation, VNI 0 is
1859 * currently refused.
1862 return rte_flow_error_set(error, ENOTSUP,
1863 RTE_FLOW_ERROR_TYPE_ITEM, item,
1864 "VXLAN vni cannot be 0");
1865 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1866 return rte_flow_error_set(error, ENOTSUP,
1867 RTE_FLOW_ERROR_TYPE_ITEM, item,
1868 "VXLAN tunnel must be fully defined");
1873 * Validate VXLAN_GPE item.
1876 * Item specification.
1877 * @param[in] item_flags
1878 * Bit-fields that holds the items detected until now.
1880 * Pointer to the private data structure.
1881 * @param[in] target_protocol
1882 * The next protocol in the previous item.
1884 * Pointer to error structure.
1887 * 0 on success, a negative errno value otherwise and rte_errno is set.
1890 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1891 uint64_t item_flags,
1892 struct rte_eth_dev *dev,
1893 struct rte_flow_error *error)
1895 struct mlx5_priv *priv = dev->data->dev_private;
1896 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1897 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1902 } id = { .vlan_id = 0, };
1903 uint32_t vlan_id = 0;
1905 if (!priv->config.l3_vxlan_en)
1906 return rte_flow_error_set(error, ENOTSUP,
1907 RTE_FLOW_ERROR_TYPE_ITEM, item,
1908 "L3 VXLAN is not enabled by device"
1909 " parameter and/or not configured in"
1911 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1912 return rte_flow_error_set(error, ENOTSUP,
1913 RTE_FLOW_ERROR_TYPE_ITEM, item,
1914 "multiple tunnel layers not"
1917 * Verify only UDPv4 is present as defined in
1918 * https://tools.ietf.org/html/rfc7348
1920 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1921 return rte_flow_error_set(error, EINVAL,
1922 RTE_FLOW_ERROR_TYPE_ITEM, item,
1923 "no outer UDP layer found");
1925 mask = &rte_flow_item_vxlan_gpe_mask;
1926 ret = mlx5_flow_item_acceptable
1927 (item, (const uint8_t *)mask,
1928 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1929 sizeof(struct rte_flow_item_vxlan_gpe),
1935 return rte_flow_error_set(error, ENOTSUP,
1936 RTE_FLOW_ERROR_TYPE_ITEM,
1938 "VxLAN-GPE protocol"
1940 memcpy(&id.vni[1], spec->vni, 3);
1941 vlan_id = id.vlan_id;
1942 memcpy(&id.vni[1], mask->vni, 3);
1943 vlan_id &= id.vlan_id;
1946 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1947 * layer is defined in the Verbs specification it is interpreted as
1948 * wildcard and all packets will match this rule, if it follows a full
1949 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1950 * before will also match this rule. To avoid such situation, VNI 0
1951 * is currently refused.
1954 return rte_flow_error_set(error, ENOTSUP,
1955 RTE_FLOW_ERROR_TYPE_ITEM, item,
1956 "VXLAN-GPE vni cannot be 0");
1957 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1958 return rte_flow_error_set(error, ENOTSUP,
1959 RTE_FLOW_ERROR_TYPE_ITEM, item,
1960 "VXLAN-GPE tunnel must be fully"
1965 * Validate GRE Key item.
1968 * Item specification.
1969 * @param[in] item_flags
1970 * Bit flags to mark detected items.
1971 * @param[in] gre_item
1972 * Pointer to gre_item
1974 * Pointer to error structure.
1977 * 0 on success, a negative errno value otherwise and rte_errno is set.
1980 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
1981 uint64_t item_flags,
1982 const struct rte_flow_item *gre_item,
1983 struct rte_flow_error *error)
1985 const rte_be32_t *mask = item->mask;
1987 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
1988 const struct rte_flow_item_gre *gre_spec = gre_item->spec;
1989 const struct rte_flow_item_gre *gre_mask = gre_item->mask;
1991 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
1992 return rte_flow_error_set(error, ENOTSUP,
1993 RTE_FLOW_ERROR_TYPE_ITEM, item,
1994 "Multiple GRE key not support");
1995 if (!(item_flags & MLX5_FLOW_LAYER_GRE))
1996 return rte_flow_error_set(error, ENOTSUP,
1997 RTE_FLOW_ERROR_TYPE_ITEM, item,
1998 "No preceding GRE header");
1999 if (item_flags & MLX5_FLOW_LAYER_INNER)
2000 return rte_flow_error_set(error, ENOTSUP,
2001 RTE_FLOW_ERROR_TYPE_ITEM, item,
2002 "GRE key following a wrong item");
2004 gre_mask = &rte_flow_item_gre_mask;
2005 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
2006 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
2007 return rte_flow_error_set(error, EINVAL,
2008 RTE_FLOW_ERROR_TYPE_ITEM, item,
2009 "Key bit must be on");
2012 mask = &gre_key_default_mask;
2013 ret = mlx5_flow_item_acceptable
2014 (item, (const uint8_t *)mask,
2015 (const uint8_t *)&gre_key_default_mask,
2016 sizeof(rte_be32_t), error);
2021 * Validate GRE item.
2024 * Item specification.
2025 * @param[in] item_flags
2026 * Bit flags to mark detected items.
2027 * @param[in] target_protocol
2028 * The next protocol in the previous item.
2030 * Pointer to error structure.
2033 * 0 on success, a negative errno value otherwise and rte_errno is set.
2036 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2037 uint64_t item_flags,
2038 uint8_t target_protocol,
2039 struct rte_flow_error *error)
2041 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2042 const struct rte_flow_item_gre *mask = item->mask;
2044 const struct rte_flow_item_gre nic_mask = {
2045 .c_rsvd0_ver = RTE_BE16(0xB000),
2046 .protocol = RTE_BE16(UINT16_MAX),
2049 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2050 return rte_flow_error_set(error, EINVAL,
2051 RTE_FLOW_ERROR_TYPE_ITEM, item,
2052 "protocol filtering not compatible"
2053 " with this GRE layer");
2054 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2055 return rte_flow_error_set(error, ENOTSUP,
2056 RTE_FLOW_ERROR_TYPE_ITEM, item,
2057 "multiple tunnel layers not"
2059 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2060 return rte_flow_error_set(error, ENOTSUP,
2061 RTE_FLOW_ERROR_TYPE_ITEM, item,
2062 "L3 Layer is missing");
2064 mask = &rte_flow_item_gre_mask;
2065 ret = mlx5_flow_item_acceptable
2066 (item, (const uint8_t *)mask,
2067 (const uint8_t *)&nic_mask,
2068 sizeof(struct rte_flow_item_gre), error);
2071 #ifndef HAVE_MLX5DV_DR
2072 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2073 if (spec && (spec->protocol & mask->protocol))
2074 return rte_flow_error_set(error, ENOTSUP,
2075 RTE_FLOW_ERROR_TYPE_ITEM, item,
2076 "without MPLS support the"
2077 " specification cannot be used for"
2085 * Validate Geneve item.
2088 * Item specification.
2089 * @param[in] itemFlags
2090 * Bit-fields that holds the items detected until now.
2092 * Pointer to the private data structure.
2094 * Pointer to error structure.
2097 * 0 on success, a negative errno value otherwise and rte_errno is set.
2101 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2102 uint64_t item_flags,
2103 struct rte_eth_dev *dev,
2104 struct rte_flow_error *error)
2106 struct mlx5_priv *priv = dev->data->dev_private;
2107 const struct rte_flow_item_geneve *spec = item->spec;
2108 const struct rte_flow_item_geneve *mask = item->mask;
2111 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2112 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2113 const struct rte_flow_item_geneve nic_mask = {
2114 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2115 .vni = "\xff\xff\xff",
2116 .protocol = RTE_BE16(UINT16_MAX),
2119 if (!(priv->config.hca_attr.flex_parser_protocols &
2120 MLX5_HCA_FLEX_GENEVE_ENABLED) ||
2121 !priv->config.hca_attr.tunnel_stateless_geneve_rx)
2122 return rte_flow_error_set(error, ENOTSUP,
2123 RTE_FLOW_ERROR_TYPE_ITEM, item,
2124 "L3 Geneve is not enabled by device"
2125 " parameter and/or not configured in"
2127 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2128 return rte_flow_error_set(error, ENOTSUP,
2129 RTE_FLOW_ERROR_TYPE_ITEM, item,
2130 "multiple tunnel layers not"
2133 * Verify only UDPv4 is present as defined in
2134 * https://tools.ietf.org/html/rfc7348
2136 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2137 return rte_flow_error_set(error, EINVAL,
2138 RTE_FLOW_ERROR_TYPE_ITEM, item,
2139 "no outer UDP layer found");
2141 mask = &rte_flow_item_geneve_mask;
2142 ret = mlx5_flow_item_acceptable
2143 (item, (const uint8_t *)mask,
2144 (const uint8_t *)&nic_mask,
2145 sizeof(struct rte_flow_item_geneve), error);
2149 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2150 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2151 MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2152 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2153 return rte_flow_error_set(error, ENOTSUP,
2154 RTE_FLOW_ERROR_TYPE_ITEM,
2156 "Geneve protocol unsupported"
2157 " fields are being used");
2158 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2159 return rte_flow_error_set
2161 RTE_FLOW_ERROR_TYPE_ITEM,
2163 "Unsupported Geneve options length");
2165 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2166 return rte_flow_error_set
2168 RTE_FLOW_ERROR_TYPE_ITEM, item,
2169 "Geneve tunnel must be fully defined");
2174 * Validate MPLS item.
2177 * Pointer to the rte_eth_dev structure.
2179 * Item specification.
2180 * @param[in] item_flags
2181 * Bit-fields that holds the items detected until now.
2182 * @param[in] prev_layer
2183 * The protocol layer indicated in previous item.
2185 * Pointer to error structure.
2188 * 0 on success, a negative errno value otherwise and rte_errno is set.
2191 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
2192 const struct rte_flow_item *item __rte_unused,
2193 uint64_t item_flags __rte_unused,
2194 uint64_t prev_layer __rte_unused,
2195 struct rte_flow_error *error)
2197 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
2198 const struct rte_flow_item_mpls *mask = item->mask;
2199 struct mlx5_priv *priv = dev->data->dev_private;
2202 if (!priv->config.mpls_en)
2203 return rte_flow_error_set(error, ENOTSUP,
2204 RTE_FLOW_ERROR_TYPE_ITEM, item,
2205 "MPLS not supported or"
2206 " disabled in firmware"
2208 /* MPLS over IP, UDP, GRE is allowed */
2209 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
2210 MLX5_FLOW_LAYER_OUTER_L4_UDP |
2211 MLX5_FLOW_LAYER_GRE)))
2212 return rte_flow_error_set(error, EINVAL,
2213 RTE_FLOW_ERROR_TYPE_ITEM, item,
2214 "protocol filtering not compatible"
2215 " with MPLS layer");
2216 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
2217 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
2218 !(item_flags & MLX5_FLOW_LAYER_GRE))
2219 return rte_flow_error_set(error, ENOTSUP,
2220 RTE_FLOW_ERROR_TYPE_ITEM, item,
2221 "multiple tunnel layers not"
2224 mask = &rte_flow_item_mpls_mask;
2225 ret = mlx5_flow_item_acceptable
2226 (item, (const uint8_t *)mask,
2227 (const uint8_t *)&rte_flow_item_mpls_mask,
2228 sizeof(struct rte_flow_item_mpls), error);
2233 return rte_flow_error_set(error, ENOTSUP,
2234 RTE_FLOW_ERROR_TYPE_ITEM, item,
2235 "MPLS is not supported by Verbs, please"
2240 * Validate NVGRE item.
2243 * Item specification.
2244 * @param[in] item_flags
2245 * Bit flags to mark detected items.
2246 * @param[in] target_protocol
2247 * The next protocol in the previous item.
2249 * Pointer to error structure.
2252 * 0 on success, a negative errno value otherwise and rte_errno is set.
2255 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
2256 uint64_t item_flags,
2257 uint8_t target_protocol,
2258 struct rte_flow_error *error)
2260 const struct rte_flow_item_nvgre *mask = item->mask;
2263 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2264 return rte_flow_error_set(error, EINVAL,
2265 RTE_FLOW_ERROR_TYPE_ITEM, item,
2266 "protocol filtering not compatible"
2267 " with this GRE layer");
2268 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2269 return rte_flow_error_set(error, ENOTSUP,
2270 RTE_FLOW_ERROR_TYPE_ITEM, item,
2271 "multiple tunnel layers not"
2273 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2274 return rte_flow_error_set(error, ENOTSUP,
2275 RTE_FLOW_ERROR_TYPE_ITEM, item,
2276 "L3 Layer is missing");
2278 mask = &rte_flow_item_nvgre_mask;
2279 ret = mlx5_flow_item_acceptable
2280 (item, (const uint8_t *)mask,
2281 (const uint8_t *)&rte_flow_item_nvgre_mask,
2282 sizeof(struct rte_flow_item_nvgre), error);
2288 /* Allocate unique ID for the split Q/RSS subflows. */
2290 flow_qrss_get_id(struct rte_eth_dev *dev)
2292 struct mlx5_priv *priv = dev->data->dev_private;
2293 uint32_t qrss_id, ret;
2295 ret = mlx5_flow_id_get(priv->qrss_id_pool, &qrss_id);
2302 /* Free unique ID for the split Q/RSS subflows. */
2304 flow_qrss_free_id(struct rte_eth_dev *dev, uint32_t qrss_id)
2306 struct mlx5_priv *priv = dev->data->dev_private;
2309 mlx5_flow_id_release(priv->qrss_id_pool, qrss_id);
2313 * Release resource related QUEUE/RSS action split.
2316 * Pointer to Ethernet device.
2318 * Flow to release id's from.
2321 flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
2322 struct rte_flow *flow)
2324 struct mlx5_flow *dev_flow;
2326 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
2327 if (dev_flow->qrss_id)
2328 flow_qrss_free_id(dev, dev_flow->qrss_id);
2332 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
2333 const struct rte_flow_attr *attr __rte_unused,
2334 const struct rte_flow_item items[] __rte_unused,
2335 const struct rte_flow_action actions[] __rte_unused,
2336 bool external __rte_unused,
2337 struct rte_flow_error *error)
2339 return rte_flow_error_set(error, ENOTSUP,
2340 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2343 static struct mlx5_flow *
2344 flow_null_prepare(const struct rte_flow_attr *attr __rte_unused,
2345 const struct rte_flow_item items[] __rte_unused,
2346 const struct rte_flow_action actions[] __rte_unused,
2347 struct rte_flow_error *error)
2349 rte_flow_error_set(error, ENOTSUP,
2350 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2355 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
2356 struct mlx5_flow *dev_flow __rte_unused,
2357 const struct rte_flow_attr *attr __rte_unused,
2358 const struct rte_flow_item items[] __rte_unused,
2359 const struct rte_flow_action actions[] __rte_unused,
2360 struct rte_flow_error *error)
2362 return rte_flow_error_set(error, ENOTSUP,
2363 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2367 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
2368 struct rte_flow *flow __rte_unused,
2369 struct rte_flow_error *error)
2371 return rte_flow_error_set(error, ENOTSUP,
2372 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2376 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
2377 struct rte_flow *flow __rte_unused)
2382 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
2383 struct rte_flow *flow __rte_unused)
2388 flow_null_query(struct rte_eth_dev *dev __rte_unused,
2389 struct rte_flow *flow __rte_unused,
2390 const struct rte_flow_action *actions __rte_unused,
2391 void *data __rte_unused,
2392 struct rte_flow_error *error)
2394 return rte_flow_error_set(error, ENOTSUP,
2395 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2398 /* Void driver to protect from null pointer reference. */
2399 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
2400 .validate = flow_null_validate,
2401 .prepare = flow_null_prepare,
2402 .translate = flow_null_translate,
2403 .apply = flow_null_apply,
2404 .remove = flow_null_remove,
2405 .destroy = flow_null_destroy,
2406 .query = flow_null_query,
2410 * Select flow driver type according to flow attributes and device
2414 * Pointer to the dev structure.
2416 * Pointer to the flow attributes.
2419 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
2421 static enum mlx5_flow_drv_type
2422 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
2424 struct mlx5_priv *priv = dev->data->dev_private;
2425 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
2427 if (attr->transfer && priv->config.dv_esw_en)
2428 type = MLX5_FLOW_TYPE_DV;
2429 if (!attr->transfer)
2430 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
2431 MLX5_FLOW_TYPE_VERBS;
2435 #define flow_get_drv_ops(type) flow_drv_ops[type]
2438 * Flow driver validation API. This abstracts calling driver specific functions.
2439 * The type of flow driver is determined according to flow attributes.
2442 * Pointer to the dev structure.
2444 * Pointer to the flow attributes.
2446 * Pointer to the list of items.
2447 * @param[in] actions
2448 * Pointer to the list of actions.
2449 * @param[in] external
2450 * This flow rule is created by request external to PMD.
2452 * Pointer to the error structure.
2455 * 0 on success, a negative errno value otherwise and rte_errno is set.
2458 flow_drv_validate(struct rte_eth_dev *dev,
2459 const struct rte_flow_attr *attr,
2460 const struct rte_flow_item items[],
2461 const struct rte_flow_action actions[],
2462 bool external, struct rte_flow_error *error)
2464 const struct mlx5_flow_driver_ops *fops;
2465 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
2467 fops = flow_get_drv_ops(type);
2468 return fops->validate(dev, attr, items, actions, external, error);
2472 * Flow driver preparation API. This abstracts calling driver specific
2473 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2474 * calculates the size of memory required for device flow, allocates the memory,
2475 * initializes the device flow and returns the pointer.
2478 * This function initializes device flow structure such as dv or verbs in
2479 * struct mlx5_flow. However, it is caller's responsibility to initialize the
2480 * rest. For example, adding returning device flow to flow->dev_flow list and
2481 * setting backward reference to the flow should be done out of this function.
2482 * layers field is not filled either.
2485 * Pointer to the flow attributes.
2487 * Pointer to the list of items.
2488 * @param[in] actions
2489 * Pointer to the list of actions.
2491 * Pointer to the error structure.
2494 * Pointer to device flow on success, otherwise NULL and rte_errno is set.
2496 static inline struct mlx5_flow *
2497 flow_drv_prepare(const struct rte_flow *flow,
2498 const struct rte_flow_attr *attr,
2499 const struct rte_flow_item items[],
2500 const struct rte_flow_action actions[],
2501 struct rte_flow_error *error)
2503 const struct mlx5_flow_driver_ops *fops;
2504 enum mlx5_flow_drv_type type = flow->drv_type;
2506 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2507 fops = flow_get_drv_ops(type);
2508 return fops->prepare(attr, items, actions, error);
2512 * Flow driver translation API. This abstracts calling driver specific
2513 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2514 * translates a generic flow into a driver flow. flow_drv_prepare() must
2518 * dev_flow->layers could be filled as a result of parsing during translation
2519 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
2520 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
2521 * flow->actions could be overwritten even though all the expanded dev_flows
2522 * have the same actions.
2525 * Pointer to the rte dev structure.
2526 * @param[in, out] dev_flow
2527 * Pointer to the mlx5 flow.
2529 * Pointer to the flow attributes.
2531 * Pointer to the list of items.
2532 * @param[in] actions
2533 * Pointer to the list of actions.
2535 * Pointer to the error structure.
2538 * 0 on success, a negative errno value otherwise and rte_errno is set.
2541 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
2542 const struct rte_flow_attr *attr,
2543 const struct rte_flow_item items[],
2544 const struct rte_flow_action actions[],
2545 struct rte_flow_error *error)
2547 const struct mlx5_flow_driver_ops *fops;
2548 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
2550 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2551 fops = flow_get_drv_ops(type);
2552 return fops->translate(dev, dev_flow, attr, items, actions, error);
2556 * Flow driver apply API. This abstracts calling driver specific functions.
2557 * Parent flow (rte_flow) should have driver type (drv_type). It applies
2558 * translated driver flows on to device. flow_drv_translate() must precede.
2561 * Pointer to Ethernet device structure.
2562 * @param[in, out] flow
2563 * Pointer to flow structure.
2565 * Pointer to error structure.
2568 * 0 on success, a negative errno value otherwise and rte_errno is set.
2571 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
2572 struct rte_flow_error *error)
2574 const struct mlx5_flow_driver_ops *fops;
2575 enum mlx5_flow_drv_type type = flow->drv_type;
2577 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2578 fops = flow_get_drv_ops(type);
2579 return fops->apply(dev, flow, error);
2583 * Flow driver remove API. This abstracts calling driver specific functions.
2584 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2585 * on device. All the resources of the flow should be freed by calling
2586 * flow_drv_destroy().
2589 * Pointer to Ethernet device.
2590 * @param[in, out] flow
2591 * Pointer to flow structure.
2594 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
2596 const struct mlx5_flow_driver_ops *fops;
2597 enum mlx5_flow_drv_type type = flow->drv_type;
2599 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2600 fops = flow_get_drv_ops(type);
2601 fops->remove(dev, flow);
2605 * Flow driver destroy API. This abstracts calling driver specific functions.
2606 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2607 * on device and releases resources of the flow.
2610 * Pointer to Ethernet device.
2611 * @param[in, out] flow
2612 * Pointer to flow structure.
2615 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
2617 const struct mlx5_flow_driver_ops *fops;
2618 enum mlx5_flow_drv_type type = flow->drv_type;
2620 flow_mreg_split_qrss_release(dev, flow);
2621 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2622 fops = flow_get_drv_ops(type);
2623 fops->destroy(dev, flow);
2627 * Validate a flow supported by the NIC.
2629 * @see rte_flow_validate()
2633 mlx5_flow_validate(struct rte_eth_dev *dev,
2634 const struct rte_flow_attr *attr,
2635 const struct rte_flow_item items[],
2636 const struct rte_flow_action actions[],
2637 struct rte_flow_error *error)
2641 ret = flow_drv_validate(dev, attr, items, actions, true, error);
2648 * Get port id item from the item list.
2651 * Pointer to the list of items.
2654 * Pointer to the port id item if exist, else return NULL.
2656 static const struct rte_flow_item *
2657 find_port_id_item(const struct rte_flow_item *item)
2660 for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2661 if (item->type == RTE_FLOW_ITEM_TYPE_PORT_ID)
2668 * Get RSS action from the action list.
2670 * @param[in] actions
2671 * Pointer to the list of actions.
2674 * Pointer to the RSS action if exist, else return NULL.
2676 static const struct rte_flow_action_rss*
2677 flow_get_rss_action(const struct rte_flow_action actions[])
2679 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2680 switch (actions->type) {
2681 case RTE_FLOW_ACTION_TYPE_RSS:
2682 return (const struct rte_flow_action_rss *)
2692 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2694 const struct rte_flow_item *item;
2695 unsigned int has_vlan = 0;
2697 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2698 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2704 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2705 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2706 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2707 MLX5_EXPANSION_ROOT_OUTER;
2711 * Get QUEUE/RSS action from the action list.
2713 * @param[in] actions
2714 * Pointer to the list of actions.
2716 * Pointer to the return pointer.
2717 * @param[out] qrss_type
2718 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
2719 * if no QUEUE/RSS is found.
2722 * Total number of actions.
2725 flow_parse_qrss_action(const struct rte_flow_action actions[],
2726 const struct rte_flow_action **qrss)
2730 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2731 switch (actions->type) {
2732 case RTE_FLOW_ACTION_TYPE_QUEUE:
2733 case RTE_FLOW_ACTION_TYPE_RSS:
2741 /* Count RTE_FLOW_ACTION_TYPE_END. */
2742 return actions_n + 1;
2746 * Check meter action from the action list.
2748 * @param[in] actions
2749 * Pointer to the list of actions.
2751 * Pointer to the meter exist flag.
2754 * Total number of actions.
2757 flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr)
2763 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2764 switch (actions->type) {
2765 case RTE_FLOW_ACTION_TYPE_METER:
2773 /* Count RTE_FLOW_ACTION_TYPE_END. */
2774 return actions_n + 1;
2778 * Check if the flow should be splited due to hairpin.
2779 * The reason for the split is that in current HW we can't
2780 * support encap on Rx, so if a flow have encap we move it
2784 * Pointer to Ethernet device.
2786 * Flow rule attributes.
2787 * @param[in] actions
2788 * Associated actions (list terminated by the END action).
2791 * > 0 the number of actions and the flow should be split,
2792 * 0 when no split required.
2795 flow_check_hairpin_split(struct rte_eth_dev *dev,
2796 const struct rte_flow_attr *attr,
2797 const struct rte_flow_action actions[])
2799 int queue_action = 0;
2802 const struct rte_flow_action_queue *queue;
2803 const struct rte_flow_action_rss *rss;
2804 const struct rte_flow_action_raw_encap *raw_encap;
2808 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2809 switch (actions->type) {
2810 case RTE_FLOW_ACTION_TYPE_QUEUE:
2811 queue = actions->conf;
2812 if (mlx5_rxq_get_type(dev, queue->index) !=
2813 MLX5_RXQ_TYPE_HAIRPIN)
2818 case RTE_FLOW_ACTION_TYPE_RSS:
2819 rss = actions->conf;
2820 if (mlx5_rxq_get_type(dev, rss->queue[0]) !=
2821 MLX5_RXQ_TYPE_HAIRPIN)
2826 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2827 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2831 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2832 raw_encap = actions->conf;
2833 if (raw_encap->size >
2834 (sizeof(struct rte_flow_item_eth) +
2835 sizeof(struct rte_flow_item_ipv4)))
2844 if (encap == 1 && queue_action)
2849 /* Declare flow create/destroy prototype in advance. */
2850 static struct rte_flow *
2851 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2852 const struct rte_flow_attr *attr,
2853 const struct rte_flow_item items[],
2854 const struct rte_flow_action actions[],
2855 bool external, struct rte_flow_error *error);
2858 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2859 struct rte_flow *flow);
2862 * Add a flow of copying flow metadata registers in RX_CP_TBL.
2864 * As mark_id is unique, if there's already a registered flow for the mark_id,
2865 * return by increasing the reference counter of the resource. Otherwise, create
2866 * the resource (mcp_res) and flow.
2869 * - If ingress port is ANY and reg_c[1] is mark_id,
2870 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
2872 * For default flow (zero mark_id), flow is like,
2873 * - If ingress port is ANY,
2874 * reg_b := reg_c[0] and jump to RX_ACT_TBL.
2877 * Pointer to Ethernet device.
2879 * ID of MARK action, zero means default flow for META.
2881 * Perform verbose error reporting if not NULL.
2884 * Associated resource on success, NULL otherwise and rte_errno is set.
2886 static struct mlx5_flow_mreg_copy_resource *
2887 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
2888 struct rte_flow_error *error)
2890 struct mlx5_priv *priv = dev->data->dev_private;
2891 struct rte_flow_attr attr = {
2892 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
2895 struct mlx5_rte_flow_item_tag tag_spec = {
2898 struct rte_flow_item items[] = {
2899 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
2901 struct rte_flow_action_mark ftag = {
2904 struct mlx5_flow_action_copy_mreg cp_mreg = {
2908 struct rte_flow_action_jump jump = {
2909 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
2911 struct rte_flow_action actions[] = {
2912 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
2914 struct mlx5_flow_mreg_copy_resource *mcp_res;
2917 /* Fill the register fileds in the flow. */
2918 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
2922 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
2926 /* Check if already registered. */
2927 assert(priv->mreg_cp_tbl);
2928 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id);
2930 /* For non-default rule. */
2933 assert(mark_id || mcp_res->refcnt == 1);
2936 /* Provide the full width of FLAG specific value. */
2937 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
2938 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
2939 /* Build a new flow. */
2941 items[0] = (struct rte_flow_item){
2942 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
2945 items[1] = (struct rte_flow_item){
2946 .type = RTE_FLOW_ITEM_TYPE_END,
2948 actions[0] = (struct rte_flow_action){
2949 .type = MLX5_RTE_FLOW_ACTION_TYPE_MARK,
2952 actions[1] = (struct rte_flow_action){
2953 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
2956 actions[2] = (struct rte_flow_action){
2957 .type = RTE_FLOW_ACTION_TYPE_JUMP,
2960 actions[3] = (struct rte_flow_action){
2961 .type = RTE_FLOW_ACTION_TYPE_END,
2964 /* Default rule, wildcard match. */
2965 attr.priority = MLX5_FLOW_PRIO_RSVD;
2966 items[0] = (struct rte_flow_item){
2967 .type = RTE_FLOW_ITEM_TYPE_END,
2969 actions[0] = (struct rte_flow_action){
2970 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
2973 actions[1] = (struct rte_flow_action){
2974 .type = RTE_FLOW_ACTION_TYPE_JUMP,
2977 actions[2] = (struct rte_flow_action){
2978 .type = RTE_FLOW_ACTION_TYPE_END,
2981 /* Build a new entry. */
2982 mcp_res = rte_zmalloc(__func__, sizeof(*mcp_res), 0);
2988 * The copy Flows are not included in any list. There
2989 * ones are referenced from other Flows and can not
2990 * be applied, removed, deleted in ardbitrary order
2991 * by list traversing.
2993 mcp_res->flow = flow_list_create(dev, NULL, &attr, items,
2994 actions, false, error);
2998 mcp_res->hlist_ent.key = mark_id;
2999 ret = mlx5_hlist_insert(priv->mreg_cp_tbl,
3000 &mcp_res->hlist_ent);
3007 flow_list_destroy(dev, NULL, mcp_res->flow);
3013 * Release flow in RX_CP_TBL.
3016 * Pointer to Ethernet device.
3018 * Parent flow for wich copying is provided.
3021 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
3022 struct rte_flow *flow)
3024 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3025 struct mlx5_priv *priv = dev->data->dev_private;
3027 if (!mcp_res || !priv->mreg_cp_tbl)
3029 if (flow->copy_applied) {
3030 assert(mcp_res->appcnt);
3031 flow->copy_applied = 0;
3033 if (!mcp_res->appcnt)
3034 flow_drv_remove(dev, mcp_res->flow);
3037 * We do not check availability of metadata registers here,
3038 * because copy resources are allocated in this case.
3040 if (--mcp_res->refcnt)
3042 assert(mcp_res->flow);
3043 flow_list_destroy(dev, NULL, mcp_res->flow);
3044 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3046 flow->mreg_copy = NULL;
3050 * Start flow in RX_CP_TBL.
3053 * Pointer to Ethernet device.
3055 * Parent flow for wich copying is provided.
3058 * 0 on success, a negative errno value otherwise and rte_errno is set.
3061 flow_mreg_start_copy_action(struct rte_eth_dev *dev,
3062 struct rte_flow *flow)
3064 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3067 if (!mcp_res || flow->copy_applied)
3069 if (!mcp_res->appcnt) {
3070 ret = flow_drv_apply(dev, mcp_res->flow, NULL);
3075 flow->copy_applied = 1;
3080 * Stop flow in RX_CP_TBL.
3083 * Pointer to Ethernet device.
3085 * Parent flow for wich copying is provided.
3088 flow_mreg_stop_copy_action(struct rte_eth_dev *dev,
3089 struct rte_flow *flow)
3091 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3093 if (!mcp_res || !flow->copy_applied)
3095 assert(mcp_res->appcnt);
3097 flow->copy_applied = 0;
3098 if (!mcp_res->appcnt)
3099 flow_drv_remove(dev, mcp_res->flow);
3103 * Remove the default copy action from RX_CP_TBL.
3106 * Pointer to Ethernet device.
3109 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
3111 struct mlx5_flow_mreg_copy_resource *mcp_res;
3112 struct mlx5_priv *priv = dev->data->dev_private;
3114 /* Check if default flow is registered. */
3115 if (!priv->mreg_cp_tbl)
3117 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, 0ULL);
3120 assert(mcp_res->flow);
3121 flow_list_destroy(dev, NULL, mcp_res->flow);
3122 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3127 * Add the default copy action in in RX_CP_TBL.
3130 * Pointer to Ethernet device.
3132 * Perform verbose error reporting if not NULL.
3135 * 0 for success, negative value otherwise and rte_errno is set.
3138 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
3139 struct rte_flow_error *error)
3141 struct mlx5_priv *priv = dev->data->dev_private;
3142 struct mlx5_flow_mreg_copy_resource *mcp_res;
3144 /* Check whether extensive metadata feature is engaged. */
3145 if (!priv->config.dv_flow_en ||
3146 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3147 !mlx5_flow_ext_mreg_supported(dev) ||
3148 !priv->sh->dv_regc0_mask)
3150 mcp_res = flow_mreg_add_copy_action(dev, 0, error);
3157 * Add a flow of copying flow metadata registers in RX_CP_TBL.
3159 * All the flow having Q/RSS action should be split by
3160 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
3161 * performs the following,
3162 * - CQE->flow_tag := reg_c[1] (MARK)
3163 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3164 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
3165 * but there should be a flow per each MARK ID set by MARK action.
3167 * For the aforementioned reason, if there's a MARK action in flow's action
3168 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
3169 * the MARK ID to CQE's flow_tag like,
3170 * - If reg_c[1] is mark_id,
3171 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3173 * For SET_META action which stores value in reg_c[0], as the destination is
3174 * also a flow metadata register (reg_b), adding a default flow is enough. Zero
3175 * MARK ID means the default flow. The default flow looks like,
3176 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3179 * Pointer to Ethernet device.
3181 * Pointer to flow structure.
3182 * @param[in] actions
3183 * Pointer to the list of actions.
3185 * Perform verbose error reporting if not NULL.
3188 * 0 on success, negative value otherwise and rte_errno is set.
3191 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
3192 struct rte_flow *flow,
3193 const struct rte_flow_action *actions,
3194 struct rte_flow_error *error)
3196 struct mlx5_priv *priv = dev->data->dev_private;
3197 struct mlx5_dev_config *config = &priv->config;
3198 struct mlx5_flow_mreg_copy_resource *mcp_res;
3199 const struct rte_flow_action_mark *mark;
3201 /* Check whether extensive metadata feature is engaged. */
3202 if (!config->dv_flow_en ||
3203 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3204 !mlx5_flow_ext_mreg_supported(dev) ||
3205 !priv->sh->dv_regc0_mask)
3207 /* Find MARK action. */
3208 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3209 switch (actions->type) {
3210 case RTE_FLOW_ACTION_TYPE_FLAG:
3211 mcp_res = flow_mreg_add_copy_action
3212 (dev, MLX5_FLOW_MARK_DEFAULT, error);
3215 flow->mreg_copy = mcp_res;
3216 if (dev->data->dev_started) {
3218 flow->copy_applied = 1;
3221 case RTE_FLOW_ACTION_TYPE_MARK:
3222 mark = (const struct rte_flow_action_mark *)
3225 flow_mreg_add_copy_action(dev, mark->id, error);
3228 flow->mreg_copy = mcp_res;
3229 if (dev->data->dev_started) {
3231 flow->copy_applied = 1;
3241 #define MLX5_MAX_SPLIT_ACTIONS 24
3242 #define MLX5_MAX_SPLIT_ITEMS 24
3245 * Split the hairpin flow.
3246 * Since HW can't support encap on Rx we move the encap to Tx.
3247 * If the count action is after the encap then we also
3248 * move the count action. in this case the count will also measure
3252 * Pointer to Ethernet device.
3253 * @param[in] actions
3254 * Associated actions (list terminated by the END action).
3255 * @param[out] actions_rx
3257 * @param[out] actions_tx
3259 * @param[out] pattern_tx
3260 * The pattern items for the Tx flow.
3261 * @param[out] flow_id
3262 * The flow ID connected to this flow.
3268 flow_hairpin_split(struct rte_eth_dev *dev,
3269 const struct rte_flow_action actions[],
3270 struct rte_flow_action actions_rx[],
3271 struct rte_flow_action actions_tx[],
3272 struct rte_flow_item pattern_tx[],
3275 struct mlx5_priv *priv = dev->data->dev_private;
3276 const struct rte_flow_action_raw_encap *raw_encap;
3277 const struct rte_flow_action_raw_decap *raw_decap;
3278 struct mlx5_rte_flow_action_set_tag *set_tag;
3279 struct rte_flow_action *tag_action;
3280 struct mlx5_rte_flow_item_tag *tag_item;
3281 struct rte_flow_item *item;
3285 mlx5_flow_id_get(priv->sh->flow_id_pool, flow_id);
3286 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3287 switch (actions->type) {
3288 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3289 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3290 rte_memcpy(actions_tx, actions,
3291 sizeof(struct rte_flow_action));
3294 case RTE_FLOW_ACTION_TYPE_COUNT:
3296 rte_memcpy(actions_tx, actions,
3297 sizeof(struct rte_flow_action));
3300 rte_memcpy(actions_rx, actions,
3301 sizeof(struct rte_flow_action));
3305 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3306 raw_encap = actions->conf;
3307 if (raw_encap->size >
3308 (sizeof(struct rte_flow_item_eth) +
3309 sizeof(struct rte_flow_item_ipv4))) {
3310 memcpy(actions_tx, actions,
3311 sizeof(struct rte_flow_action));
3315 rte_memcpy(actions_rx, actions,
3316 sizeof(struct rte_flow_action));
3320 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3321 raw_decap = actions->conf;
3322 if (raw_decap->size <
3323 (sizeof(struct rte_flow_item_eth) +
3324 sizeof(struct rte_flow_item_ipv4))) {
3325 memcpy(actions_tx, actions,
3326 sizeof(struct rte_flow_action));
3329 rte_memcpy(actions_rx, actions,
3330 sizeof(struct rte_flow_action));
3335 rte_memcpy(actions_rx, actions,
3336 sizeof(struct rte_flow_action));
3341 /* Add set meta action and end action for the Rx flow. */
3342 tag_action = actions_rx;
3343 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3345 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
3347 set_tag = (void *)actions_rx;
3348 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL);
3349 assert(set_tag->id > REG_NONE);
3350 set_tag->data = *flow_id;
3351 tag_action->conf = set_tag;
3352 /* Create Tx item list. */
3353 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
3354 addr = (void *)&pattern_tx[2];
3356 item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3357 tag_item = (void *)addr;
3358 tag_item->data = *flow_id;
3359 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
3360 assert(set_tag->id > REG_NONE);
3361 item->spec = tag_item;
3362 addr += sizeof(struct mlx5_rte_flow_item_tag);
3363 tag_item = (void *)addr;
3364 tag_item->data = UINT32_MAX;
3365 tag_item->id = UINT16_MAX;
3366 item->mask = tag_item;
3367 addr += sizeof(struct mlx5_rte_flow_item_tag);
3370 item->type = RTE_FLOW_ITEM_TYPE_END;
3375 * The last stage of splitting chain, just creates the subflow
3376 * without any modification.
3379 * Pointer to Ethernet device.
3381 * Parent flow structure pointer.
3382 * @param[in, out] sub_flow
3383 * Pointer to return the created subflow, may be NULL.
3385 * Flow rule attributes.
3387 * Pattern specification (list terminated by the END pattern item).
3388 * @param[in] actions
3389 * Associated actions (list terminated by the END action).
3390 * @param[in] external
3391 * This flow rule is created by request external to PMD.
3393 * Perform verbose error reporting if not NULL.
3395 * 0 on success, negative value otherwise
3398 flow_create_split_inner(struct rte_eth_dev *dev,
3399 struct rte_flow *flow,
3400 struct mlx5_flow **sub_flow,
3401 const struct rte_flow_attr *attr,
3402 const struct rte_flow_item items[],
3403 const struct rte_flow_action actions[],
3404 bool external, struct rte_flow_error *error)
3406 struct mlx5_flow *dev_flow;
3408 dev_flow = flow_drv_prepare(flow, attr, items, actions, error);
3411 dev_flow->flow = flow;
3412 dev_flow->external = external;
3413 /* Subflow object was created, we must include one in the list. */
3414 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
3416 *sub_flow = dev_flow;
3417 return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
3421 * Split the meter flow.
3423 * As meter flow will split to three sub flow, other than meter
3424 * action, the other actions make sense to only meter accepts
3425 * the packet. If it need to be dropped, no other additional
3426 * actions should be take.
3428 * One kind of special action which decapsulates the L3 tunnel
3429 * header will be in the prefix sub flow, as not to take the
3430 * L3 tunnel header into account.
3433 * Pointer to Ethernet device.
3434 * @param[in] actions
3435 * Associated actions (list terminated by the END action).
3436 * @param[out] actions_sfx
3437 * Suffix flow actions.
3438 * @param[out] actions_pre
3439 * Prefix flow actions.
3440 * @param[out] pattern_sfx
3441 * The pattern items for the suffix flow.
3442 * @param[out] tag_sfx
3443 * Pointer to suffix flow tag.
3449 flow_meter_split_prep(struct rte_eth_dev *dev,
3450 const struct rte_flow_action actions[],
3451 struct rte_flow_action actions_sfx[],
3452 struct rte_flow_action actions_pre[])
3454 struct rte_flow_action *tag_action;
3455 struct mlx5_rte_flow_action_set_tag *set_tag;
3456 struct rte_flow_error error;
3457 const struct rte_flow_action_raw_encap *raw_encap;
3458 const struct rte_flow_action_raw_decap *raw_decap;
3461 /* Add the extra tag action first. */
3462 tag_action = actions_pre;
3463 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3465 /* Prepare the actions for prefix and suffix flow. */
3466 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3467 switch (actions->type) {
3468 case RTE_FLOW_ACTION_TYPE_METER:
3469 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3470 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
3471 memcpy(actions_pre, actions,
3472 sizeof(struct rte_flow_action));
3475 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3476 raw_encap = actions->conf;
3477 if (raw_encap->size >
3478 (sizeof(struct rte_flow_item_eth) +
3479 sizeof(struct rte_flow_item_ipv4))) {
3480 memcpy(actions_sfx, actions,
3481 sizeof(struct rte_flow_action));
3484 rte_memcpy(actions_pre, actions,
3485 sizeof(struct rte_flow_action));
3489 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3490 raw_decap = actions->conf;
3491 /* Size 0 decap means 50 bytes as vxlan decap. */
3492 if (raw_decap->size && (raw_decap->size <
3493 (sizeof(struct rte_flow_item_eth) +
3494 sizeof(struct rte_flow_item_ipv4)))) {
3495 memcpy(actions_sfx, actions,
3496 sizeof(struct rte_flow_action));
3499 rte_memcpy(actions_pre, actions,
3500 sizeof(struct rte_flow_action));
3505 memcpy(actions_sfx, actions,
3506 sizeof(struct rte_flow_action));
3511 /* Add end action to the actions. */
3512 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
3513 actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
3516 set_tag = (void *)actions_pre;
3517 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3519 * Get the id from the qrss_pool to make qrss share the id with meter.
3521 tag_id = flow_qrss_get_id(dev);
3522 set_tag->data = rte_cpu_to_be_32(tag_id);
3523 tag_action->conf = set_tag;
3528 * Split action list having QUEUE/RSS for metadata register copy.
3530 * Once Q/RSS action is detected in user's action list, the flow action
3531 * should be split in order to copy metadata registers, which will happen in
3533 * - CQE->flow_tag := reg_c[1] (MARK)
3534 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3535 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
3536 * This is because the last action of each flow must be a terminal action
3537 * (QUEUE, RSS or DROP).
3539 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
3540 * stored and kept in the mlx5_flow structure per each sub_flow.
3542 * The Q/RSS action is replaced with,
3543 * - SET_TAG, setting the allocated flow ID to reg_c[2].
3544 * And the following JUMP action is added at the end,
3545 * - JUMP, to RX_CP_TBL.
3547 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
3548 * flow_create_split_metadata() routine. The flow will look like,
3549 * - If flow ID matches (reg_c[2]), perform Q/RSS.
3552 * Pointer to Ethernet device.
3553 * @param[out] split_actions
3554 * Pointer to store split actions to jump to CP_TBL.
3555 * @param[in] actions
3556 * Pointer to the list of original flow actions.
3558 * Pointer to the Q/RSS action.
3559 * @param[in] actions_n
3560 * Number of original actions.
3562 * Perform verbose error reporting if not NULL.
3565 * non-zero unique flow_id on success, otherwise 0 and
3566 * error/rte_error are set.
3569 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
3570 struct rte_flow_action *split_actions,
3571 const struct rte_flow_action *actions,
3572 const struct rte_flow_action *qrss,
3573 int actions_n, struct rte_flow_error *error)
3575 struct mlx5_rte_flow_action_set_tag *set_tag;
3576 struct rte_flow_action_jump *jump;
3577 const int qrss_idx = qrss - actions;
3578 uint32_t flow_id = 0;
3582 * Given actions will be split
3583 * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
3584 * - Add jump to mreg CP_TBL.
3585 * As a result, there will be one more action.
3588 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
3589 set_tag = (void *)(split_actions + actions_n);
3591 * If tag action is not set to void(it means we are not the meter
3592 * suffix flow), add the tag action. Since meter suffix flow already
3593 * has the tag added.
3595 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
3597 * Allocate the new subflow ID. This one is unique within
3598 * device and not shared with representors. Otherwise,
3599 * we would have to resolve multi-thread access synch
3600 * issue. Each flow on the shared device is appended
3601 * with source vport identifier, so the resulting
3602 * flows will be unique in the shared (by master and
3603 * representors) domain even if they have coinciding
3606 flow_id = flow_qrss_get_id(dev);
3608 return rte_flow_error_set(error, ENOMEM,
3609 RTE_FLOW_ERROR_TYPE_ACTION,
3610 NULL, "can't allocate id "
3611 "for split Q/RSS subflow");
3612 /* Internal SET_TAG action to set flow ID. */
3613 *set_tag = (struct mlx5_rte_flow_action_set_tag){
3616 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
3620 /* Construct new actions array. */
3621 /* Replace QUEUE/RSS action. */
3622 split_actions[qrss_idx] = (struct rte_flow_action){
3623 .type = MLX5_RTE_FLOW_ACTION_TYPE_TAG,
3627 /* JUMP action to jump to mreg copy table (CP_TBL). */
3628 jump = (void *)(set_tag + 1);
3629 *jump = (struct rte_flow_action_jump){
3630 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
3632 split_actions[actions_n - 2] = (struct rte_flow_action){
3633 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3636 split_actions[actions_n - 1] = (struct rte_flow_action){
3637 .type = RTE_FLOW_ACTION_TYPE_END,
3643 * Extend the given action list for Tx metadata copy.
3645 * Copy the given action list to the ext_actions and add flow metadata register
3646 * copy action in order to copy reg_a set by WQE to reg_c[0].
3648 * @param[out] ext_actions
3649 * Pointer to the extended action list.
3650 * @param[in] actions
3651 * Pointer to the list of actions.
3652 * @param[in] actions_n
3653 * Number of actions in the list.
3655 * Perform verbose error reporting if not NULL.
3658 * 0 on success, negative value otherwise
3661 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
3662 struct rte_flow_action *ext_actions,
3663 const struct rte_flow_action *actions,
3664 int actions_n, struct rte_flow_error *error)
3666 struct mlx5_flow_action_copy_mreg *cp_mreg =
3667 (struct mlx5_flow_action_copy_mreg *)
3668 (ext_actions + actions_n + 1);
3671 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
3675 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
3679 memcpy(ext_actions, actions,
3680 sizeof(*ext_actions) * actions_n);
3681 ext_actions[actions_n - 1] = (struct rte_flow_action){
3682 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3685 ext_actions[actions_n] = (struct rte_flow_action){
3686 .type = RTE_FLOW_ACTION_TYPE_END,
3692 * The splitting for metadata feature.
3694 * - Q/RSS action on NIC Rx should be split in order to pass by
3695 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3696 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3698 * - All the actions on NIC Tx should have a mreg copy action to
3699 * copy reg_a from WQE to reg_c[0].
3702 * Pointer to Ethernet device.
3704 * Parent flow structure pointer.
3706 * Flow rule attributes.
3708 * Pattern specification (list terminated by the END pattern item).
3709 * @param[in] actions
3710 * Associated actions (list terminated by the END action).
3711 * @param[in] external
3712 * This flow rule is created by request external to PMD.
3714 * Perform verbose error reporting if not NULL.
3716 * 0 on success, negative value otherwise
3719 flow_create_split_metadata(struct rte_eth_dev *dev,
3720 struct rte_flow *flow,
3721 const struct rte_flow_attr *attr,
3722 const struct rte_flow_item items[],
3723 const struct rte_flow_action actions[],
3724 bool external, struct rte_flow_error *error)
3726 struct mlx5_priv *priv = dev->data->dev_private;
3727 struct mlx5_dev_config *config = &priv->config;
3728 const struct rte_flow_action *qrss = NULL;
3729 struct rte_flow_action *ext_actions = NULL;
3730 struct mlx5_flow *dev_flow = NULL;
3731 uint32_t qrss_id = 0;
3737 /* Check whether extensive metadata feature is engaged. */
3738 if (!config->dv_flow_en ||
3739 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3740 !mlx5_flow_ext_mreg_supported(dev))
3741 return flow_create_split_inner(dev, flow, NULL, attr, items,
3742 actions, external, error);
3743 actions_n = flow_parse_qrss_action(actions, &qrss);
3745 /* Exclude hairpin flows from splitting. */
3746 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
3747 const struct rte_flow_action_queue *queue;
3750 if (mlx5_rxq_get_type(dev, queue->index) ==
3751 MLX5_RXQ_TYPE_HAIRPIN)
3753 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
3754 const struct rte_flow_action_rss *rss;
3757 if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
3758 MLX5_RXQ_TYPE_HAIRPIN)
3763 /* Check if it is in meter suffix table. */
3764 mtr_sfx = attr->group == (attr->transfer ?
3765 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
3766 MLX5_FLOW_TABLE_LEVEL_SUFFIX);
3768 * Q/RSS action on NIC Rx should be split in order to pass by
3769 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3770 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3772 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3773 sizeof(struct rte_flow_action_set_tag) +
3774 sizeof(struct rte_flow_action_jump);
3775 ext_actions = rte_zmalloc(__func__, act_size, 0);
3777 return rte_flow_error_set(error, ENOMEM,
3778 RTE_FLOW_ERROR_TYPE_ACTION,
3779 NULL, "no memory to split "
3782 * If we are the suffix flow of meter, tag already exist.
3783 * Set the tag action to void.
3786 ext_actions[qrss - actions].type =
3787 RTE_FLOW_ACTION_TYPE_VOID;
3789 ext_actions[qrss - actions].type =
3790 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3792 * Create the new actions list with removed Q/RSS action
3793 * and appended set tag and jump to register copy table
3794 * (RX_CP_TBL). We should preallocate unique tag ID here
3795 * in advance, because it is needed for set tag action.
3797 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
3798 qrss, actions_n, error);
3799 if (!mtr_sfx && !qrss_id) {
3803 } else if (attr->egress && !attr->transfer) {
3805 * All the actions on NIC Tx should have a metadata register
3806 * copy action to copy reg_a from WQE to reg_c[meta]
3808 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3809 sizeof(struct mlx5_flow_action_copy_mreg);
3810 ext_actions = rte_zmalloc(__func__, act_size, 0);
3812 return rte_flow_error_set(error, ENOMEM,
3813 RTE_FLOW_ERROR_TYPE_ACTION,
3814 NULL, "no memory to split "
3816 /* Create the action list appended with copy register. */
3817 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
3822 /* Add the unmodified original or prefix subflow. */
3823 ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items,
3824 ext_actions ? ext_actions : actions,
3830 const struct rte_flow_attr q_attr = {
3831 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
3834 /* Internal PMD action to set register. */
3835 struct mlx5_rte_flow_item_tag q_tag_spec = {
3839 struct rte_flow_item q_items[] = {
3841 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
3842 .spec = &q_tag_spec,
3847 .type = RTE_FLOW_ITEM_TYPE_END,
3850 struct rte_flow_action q_actions[] = {
3856 .type = RTE_FLOW_ACTION_TYPE_END,
3859 uint64_t hash_fields = dev_flow->hash_fields;
3862 * Configure the tag action only if we are not the meter sub
3863 * flow. Since tag is already marked in the meter suffix sub
3868 * Put unique id in prefix flow due to it is destroyed
3869 * after prefix flow and id will be freed after there
3870 * is no actual flows with this id and identifier
3871 * reallocation becomes possible (for example, for
3872 * other flows in other threads).
3874 dev_flow->qrss_id = qrss_id;
3876 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
3880 q_tag_spec.id = ret;
3882 /* Add suffix subflow to execute Q/RSS. */
3883 ret = flow_create_split_inner(dev, flow, &dev_flow,
3884 &q_attr, mtr_sfx ? items :
3890 dev_flow->hash_fields = hash_fields;
3895 * We do not destroy the partially created sub_flows in case of error.
3896 * These ones are included into parent flow list and will be destroyed
3897 * by flow_drv_destroy.
3899 flow_qrss_free_id(dev, qrss_id);
3900 rte_free(ext_actions);
3905 * The splitting for meter feature.
3907 * - The meter flow will be split to two flows as prefix and
3908 * suffix flow. The packets make sense only it pass the prefix
3911 * - Reg_C_5 is used for the packet to match betweend prefix and
3915 * Pointer to Ethernet device.
3917 * Parent flow structure pointer.
3919 * Flow rule attributes.
3921 * Pattern specification (list terminated by the END pattern item).
3922 * @param[in] actions
3923 * Associated actions (list terminated by the END action).
3924 * @param[in] external
3925 * This flow rule is created by request external to PMD.
3927 * Perform verbose error reporting if not NULL.
3929 * 0 on success, negative value otherwise
3932 flow_create_split_meter(struct rte_eth_dev *dev,
3933 struct rte_flow *flow,
3934 const struct rte_flow_attr *attr,
3935 const struct rte_flow_item items[],
3936 const struct rte_flow_action actions[],
3937 bool external, struct rte_flow_error *error)
3939 struct mlx5_priv *priv = dev->data->dev_private;
3940 struct rte_flow_action *sfx_actions = NULL;
3941 struct rte_flow_action *pre_actions = NULL;
3942 struct rte_flow_item *sfx_items = NULL;
3943 const struct rte_flow_item *sfx_port_id_item;
3944 struct mlx5_flow *dev_flow = NULL;
3945 struct rte_flow_attr sfx_attr = *attr;
3947 uint32_t mtr_tag_id = 0;
3954 actions_n = flow_check_meter_action(actions, &mtr);
3956 struct mlx5_rte_flow_item_tag *tag_spec;
3957 /* The five prefix actions: meter, decap, encap, tag, end. */
3958 act_size = sizeof(struct rte_flow_action) * (actions_n + 5) +
3959 sizeof(struct rte_flow_action_set_tag);
3961 #define METER_SUFFIX_ITEM 3
3962 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
3963 sizeof(struct mlx5_rte_flow_item_tag);
3964 sfx_actions = rte_zmalloc(__func__, (act_size + item_size), 0);
3966 return rte_flow_error_set(error, ENOMEM,
3967 RTE_FLOW_ERROR_TYPE_ACTION,
3968 NULL, "no memory to split "
3970 pre_actions = sfx_actions + actions_n;
3971 mtr_tag_id = flow_meter_split_prep(dev, actions, sfx_actions,
3977 /* Add the prefix subflow. */
3978 ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items,
3979 pre_actions, external, error);
3984 dev_flow->mtr_flow_id = mtr_tag_id;
3985 /* Prepare the suffix flow match pattern. */
3986 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
3988 tag_spec = (struct mlx5_rte_flow_item_tag *)(sfx_items +
3990 tag_spec->data = rte_cpu_to_be_32(dev_flow->mtr_flow_id);
3991 tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0,
3993 sfx_items->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3994 sfx_items->spec = tag_spec;
3995 sfx_items->last = NULL;
3996 sfx_items->mask = NULL;
3998 sfx_port_id_item = find_port_id_item(items);
3999 if (sfx_port_id_item) {
4000 memcpy(sfx_items, sfx_port_id_item,
4001 sizeof(*sfx_items));
4004 sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
4005 sfx_items -= METER_SUFFIX_ITEM;
4006 /* Setting the sfx group atrr. */
4007 sfx_attr.group = sfx_attr.transfer ?
4008 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
4009 MLX5_FLOW_TABLE_LEVEL_SUFFIX;
4011 /* Add the prefix subflow. */
4012 ret = flow_create_split_metadata(dev, flow, &sfx_attr,
4013 sfx_items ? sfx_items : items,
4014 sfx_actions ? sfx_actions : actions,
4018 rte_free(sfx_actions);
4023 * Split the flow to subflow set. The splitters might be linked
4024 * in the chain, like this:
4025 * flow_create_split_outer() calls:
4026 * flow_create_split_meter() calls:
4027 * flow_create_split_metadata(meter_subflow_0) calls:
4028 * flow_create_split_inner(metadata_subflow_0)
4029 * flow_create_split_inner(metadata_subflow_1)
4030 * flow_create_split_inner(metadata_subflow_2)
4031 * flow_create_split_metadata(meter_subflow_1) calls:
4032 * flow_create_split_inner(metadata_subflow_0)
4033 * flow_create_split_inner(metadata_subflow_1)
4034 * flow_create_split_inner(metadata_subflow_2)
4036 * This provide flexible way to add new levels of flow splitting.
4037 * The all of successfully created subflows are included to the
4038 * parent flow dev_flow list.
4041 * Pointer to Ethernet device.
4043 * Parent flow structure pointer.
4045 * Flow rule attributes.
4047 * Pattern specification (list terminated by the END pattern item).
4048 * @param[in] actions
4049 * Associated actions (list terminated by the END action).
4050 * @param[in] external
4051 * This flow rule is created by request external to PMD.
4053 * Perform verbose error reporting if not NULL.
4055 * 0 on success, negative value otherwise
4058 flow_create_split_outer(struct rte_eth_dev *dev,
4059 struct rte_flow *flow,
4060 const struct rte_flow_attr *attr,
4061 const struct rte_flow_item items[],
4062 const struct rte_flow_action actions[],
4063 bool external, struct rte_flow_error *error)
4067 ret = flow_create_split_meter(dev, flow, attr, items,
4068 actions, external, error);
4074 * Create a flow and add it to @p list.
4077 * Pointer to Ethernet device.
4079 * Pointer to a TAILQ flow list. If this parameter NULL,
4080 * no list insertion occurred, flow is just created,
4081 * this is caller's responsibility to track the
4084 * Flow rule attributes.
4086 * Pattern specification (list terminated by the END pattern item).
4087 * @param[in] actions
4088 * Associated actions (list terminated by the END action).
4089 * @param[in] external
4090 * This flow rule is created by request external to PMD.
4092 * Perform verbose error reporting if not NULL.
4095 * A flow on success, NULL otherwise and rte_errno is set.
4097 static struct rte_flow *
4098 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
4099 const struct rte_flow_attr *attr,
4100 const struct rte_flow_item items[],
4101 const struct rte_flow_action actions[],
4102 bool external, struct rte_flow_error *error)
4104 struct mlx5_priv *priv = dev->data->dev_private;
4105 struct rte_flow *flow = NULL;
4106 struct mlx5_flow *dev_flow;
4107 const struct rte_flow_action_rss *rss;
4109 struct rte_flow_expand_rss buf;
4110 uint8_t buffer[2048];
4113 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4114 uint8_t buffer[2048];
4117 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4118 uint8_t buffer[2048];
4119 } actions_hairpin_tx;
4121 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
4122 uint8_t buffer[2048];
4124 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
4125 const struct rte_flow_action *p_actions_rx = actions;
4129 int hairpin_flow = 0;
4130 uint32_t hairpin_id = 0;
4131 struct rte_flow_attr attr_tx = { .priority = 0 };
4133 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
4134 if (hairpin_flow > 0) {
4135 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
4139 flow_hairpin_split(dev, actions, actions_rx.actions,
4140 actions_hairpin_tx.actions, items_tx.items,
4142 p_actions_rx = actions_rx.actions;
4144 ret = flow_drv_validate(dev, attr, items, p_actions_rx, external,
4147 goto error_before_flow;
4148 flow_size = sizeof(struct rte_flow);
4149 rss = flow_get_rss_action(p_actions_rx);
4151 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
4154 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
4155 flow = rte_calloc(__func__, 1, flow_size, 0);
4158 goto error_before_flow;
4160 flow->drv_type = flow_get_drv_type(dev, attr);
4161 if (hairpin_id != 0)
4162 flow->hairpin_flow_id = hairpin_id;
4163 assert(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
4164 flow->drv_type < MLX5_FLOW_TYPE_MAX);
4165 flow->rss.queue = (void *)(flow + 1);
4168 * The following information is required by
4169 * mlx5_flow_hashfields_adjust() in advance.
4171 flow->rss.level = rss->level;
4172 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
4173 flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
4175 LIST_INIT(&flow->dev_flows);
4176 if (rss && rss->types) {
4177 unsigned int graph_root;
4179 graph_root = find_graph_root(items, rss->level);
4180 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
4182 mlx5_support_expansion,
4185 (unsigned int)ret < sizeof(expand_buffer.buffer));
4188 buf->entry[0].pattern = (void *)(uintptr_t)items;
4190 for (i = 0; i < buf->entries; ++i) {
4192 * The splitter may create multiple dev_flows,
4193 * depending on configuration. In the simplest
4194 * case it just creates unmodified original flow.
4196 ret = flow_create_split_outer(dev, flow, attr,
4197 buf->entry[i].pattern,
4198 p_actions_rx, external,
4203 /* Create the tx flow. */
4205 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
4206 attr_tx.ingress = 0;
4208 dev_flow = flow_drv_prepare(flow, &attr_tx, items_tx.items,
4209 actions_hairpin_tx.actions, error);
4212 dev_flow->flow = flow;
4213 dev_flow->external = 0;
4214 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
4215 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
4217 actions_hairpin_tx.actions, error);
4222 * Update the metadata register copy table. If extensive
4223 * metadata feature is enabled and registers are supported
4224 * we might create the extra rte_flow for each unique
4225 * MARK/FLAG action ID.
4227 * The table is updated for ingress Flows only, because
4228 * the egress Flows belong to the different device and
4229 * copy table should be updated in peer NIC Rx domain.
4231 if (attr->ingress &&
4232 (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
4233 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
4237 if (dev->data->dev_started) {
4238 ret = flow_drv_apply(dev, flow, error);
4243 TAILQ_INSERT_TAIL(list, flow, next);
4244 flow_rxq_flags_set(dev, flow);
4248 mlx5_flow_id_release(priv->sh->flow_id_pool,
4253 flow_mreg_del_copy_action(dev, flow);
4254 ret = rte_errno; /* Save rte_errno before cleanup. */
4255 if (flow->hairpin_flow_id)
4256 mlx5_flow_id_release(priv->sh->flow_id_pool,
4257 flow->hairpin_flow_id);
4259 flow_drv_destroy(dev, flow);
4261 rte_errno = ret; /* Restore rte_errno. */
4266 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
4267 * incoming packets to table 1.
4269 * Other flow rules, requested for group n, will be created in
4270 * e-switch table n+1.
4271 * Jump action to e-switch group n will be created to group n+1.
4273 * Used when working in switchdev mode, to utilise advantages of table 1
4277 * Pointer to Ethernet device.
4280 * Pointer to flow on success, NULL otherwise and rte_errno is set.
4283 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
4285 const struct rte_flow_attr attr = {
4292 const struct rte_flow_item pattern = {
4293 .type = RTE_FLOW_ITEM_TYPE_END,
4295 struct rte_flow_action_jump jump = {
4298 const struct rte_flow_action actions[] = {
4300 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4304 .type = RTE_FLOW_ACTION_TYPE_END,
4307 struct mlx5_priv *priv = dev->data->dev_private;
4308 struct rte_flow_error error;
4310 return flow_list_create(dev, &priv->ctrl_flows, &attr, &pattern,
4311 actions, false, &error);
4317 * @see rte_flow_create()
4321 mlx5_flow_create(struct rte_eth_dev *dev,
4322 const struct rte_flow_attr *attr,
4323 const struct rte_flow_item items[],
4324 const struct rte_flow_action actions[],
4325 struct rte_flow_error *error)
4327 struct mlx5_priv *priv = dev->data->dev_private;
4329 return flow_list_create(dev, &priv->flows,
4330 attr, items, actions, true, error);
4334 * Destroy a flow in a list.
4337 * Pointer to Ethernet device.
4339 * Pointer to a TAILQ flow list. If this parameter NULL,
4340 * there is no flow removal from the list.
4345 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
4346 struct rte_flow *flow)
4348 struct mlx5_priv *priv = dev->data->dev_private;
4351 * Update RX queue flags only if port is started, otherwise it is
4354 if (dev->data->dev_started)
4355 flow_rxq_flags_trim(dev, flow);
4356 if (flow->hairpin_flow_id)
4357 mlx5_flow_id_release(priv->sh->flow_id_pool,
4358 flow->hairpin_flow_id);
4359 flow_drv_destroy(dev, flow);
4361 TAILQ_REMOVE(list, flow, next);
4362 flow_mreg_del_copy_action(dev, flow);
4363 rte_free(flow->fdir);
4368 * Destroy all flows.
4371 * Pointer to Ethernet device.
4373 * Pointer to a TAILQ flow list.
4376 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
4378 while (!TAILQ_EMPTY(list)) {
4379 struct rte_flow *flow;
4381 flow = TAILQ_FIRST(list);
4382 flow_list_destroy(dev, list, flow);
4390 * Pointer to Ethernet device.
4392 * Pointer to a TAILQ flow list.
4395 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
4397 struct rte_flow *flow;
4399 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
4400 flow_drv_remove(dev, flow);
4401 flow_mreg_stop_copy_action(dev, flow);
4403 flow_mreg_del_default_copy_action(dev);
4404 flow_rxq_flags_clear(dev);
4411 * Pointer to Ethernet device.
4413 * Pointer to a TAILQ flow list.
4416 * 0 on success, a negative errno value otherwise and rte_errno is set.
4419 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
4421 struct rte_flow *flow;
4422 struct rte_flow_error error;
4425 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
4426 ret = flow_mreg_add_default_copy_action(dev, &error);
4429 /* Apply Flows created by application. */
4430 TAILQ_FOREACH(flow, list, next) {
4431 ret = flow_mreg_start_copy_action(dev, flow);
4434 ret = flow_drv_apply(dev, flow, &error);
4437 flow_rxq_flags_set(dev, flow);
4441 ret = rte_errno; /* Save rte_errno before cleanup. */
4442 mlx5_flow_stop(dev, list);
4443 rte_errno = ret; /* Restore rte_errno. */
4448 * Verify the flow list is empty
4451 * Pointer to Ethernet device.
4453 * @return the number of flows not released.
4456 mlx5_flow_verify(struct rte_eth_dev *dev)
4458 struct mlx5_priv *priv = dev->data->dev_private;
4459 struct rte_flow *flow;
4462 TAILQ_FOREACH(flow, &priv->flows, next) {
4463 DRV_LOG(DEBUG, "port %u flow %p still referenced",
4464 dev->data->port_id, (void *)flow);
4471 * Enable default hairpin egress flow.
4474 * Pointer to Ethernet device.
4479 * 0 on success, a negative errno value otherwise and rte_errno is set.
4482 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
4485 struct mlx5_priv *priv = dev->data->dev_private;
4486 const struct rte_flow_attr attr = {
4490 struct mlx5_rte_flow_item_tx_queue queue_spec = {
4493 struct mlx5_rte_flow_item_tx_queue queue_mask = {
4494 .queue = UINT32_MAX,
4496 struct rte_flow_item items[] = {
4498 .type = MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
4499 .spec = &queue_spec,
4501 .mask = &queue_mask,
4504 .type = RTE_FLOW_ITEM_TYPE_END,
4507 struct rte_flow_action_jump jump = {
4508 .group = MLX5_HAIRPIN_TX_TABLE,
4510 struct rte_flow_action actions[2];
4511 struct rte_flow *flow;
4512 struct rte_flow_error error;
4514 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
4515 actions[0].conf = &jump;
4516 actions[1].type = RTE_FLOW_ACTION_TYPE_END;
4517 flow = flow_list_create(dev, &priv->ctrl_flows,
4518 &attr, items, actions, false, &error);
4521 "Failed to create ctrl flow: rte_errno(%d),"
4522 " type(%d), message(%s)",
4523 rte_errno, error.type,
4524 error.message ? error.message : " (no stated reason)");
4531 * Enable a control flow configured from the control plane.
4534 * Pointer to Ethernet device.
4536 * An Ethernet flow spec to apply.
4538 * An Ethernet flow mask to apply.
4540 * A VLAN flow spec to apply.
4542 * A VLAN flow mask to apply.
4545 * 0 on success, a negative errno value otherwise and rte_errno is set.
4548 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
4549 struct rte_flow_item_eth *eth_spec,
4550 struct rte_flow_item_eth *eth_mask,
4551 struct rte_flow_item_vlan *vlan_spec,
4552 struct rte_flow_item_vlan *vlan_mask)
4554 struct mlx5_priv *priv = dev->data->dev_private;
4555 const struct rte_flow_attr attr = {
4557 .priority = MLX5_FLOW_PRIO_RSVD,
4559 struct rte_flow_item items[] = {
4561 .type = RTE_FLOW_ITEM_TYPE_ETH,
4567 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
4568 RTE_FLOW_ITEM_TYPE_END,
4574 .type = RTE_FLOW_ITEM_TYPE_END,
4577 uint16_t queue[priv->reta_idx_n];
4578 struct rte_flow_action_rss action_rss = {
4579 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
4581 .types = priv->rss_conf.rss_hf,
4582 .key_len = priv->rss_conf.rss_key_len,
4583 .queue_num = priv->reta_idx_n,
4584 .key = priv->rss_conf.rss_key,
4587 struct rte_flow_action actions[] = {
4589 .type = RTE_FLOW_ACTION_TYPE_RSS,
4590 .conf = &action_rss,
4593 .type = RTE_FLOW_ACTION_TYPE_END,
4596 struct rte_flow *flow;
4597 struct rte_flow_error error;
4600 if (!priv->reta_idx_n || !priv->rxqs_n) {
4603 for (i = 0; i != priv->reta_idx_n; ++i)
4604 queue[i] = (*priv->reta_idx)[i];
4605 flow = flow_list_create(dev, &priv->ctrl_flows,
4606 &attr, items, actions, false, &error);
4613 * Enable a flow control configured from the control plane.
4616 * Pointer to Ethernet device.
4618 * An Ethernet flow spec to apply.
4620 * An Ethernet flow mask to apply.
4623 * 0 on success, a negative errno value otherwise and rte_errno is set.
4626 mlx5_ctrl_flow(struct rte_eth_dev *dev,
4627 struct rte_flow_item_eth *eth_spec,
4628 struct rte_flow_item_eth *eth_mask)
4630 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
4636 * @see rte_flow_destroy()
4640 mlx5_flow_destroy(struct rte_eth_dev *dev,
4641 struct rte_flow *flow,
4642 struct rte_flow_error *error __rte_unused)
4644 struct mlx5_priv *priv = dev->data->dev_private;
4646 flow_list_destroy(dev, &priv->flows, flow);
4651 * Destroy all flows.
4653 * @see rte_flow_flush()
4657 mlx5_flow_flush(struct rte_eth_dev *dev,
4658 struct rte_flow_error *error __rte_unused)
4660 struct mlx5_priv *priv = dev->data->dev_private;
4662 mlx5_flow_list_flush(dev, &priv->flows);
4669 * @see rte_flow_isolate()
4673 mlx5_flow_isolate(struct rte_eth_dev *dev,
4675 struct rte_flow_error *error)
4677 struct mlx5_priv *priv = dev->data->dev_private;
4679 if (dev->data->dev_started) {
4680 rte_flow_error_set(error, EBUSY,
4681 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4683 "port must be stopped first");
4686 priv->isolated = !!enable;
4688 dev->dev_ops = &mlx5_dev_ops_isolate;
4690 dev->dev_ops = &mlx5_dev_ops;
4697 * @see rte_flow_query()
4701 flow_drv_query(struct rte_eth_dev *dev,
4702 struct rte_flow *flow,
4703 const struct rte_flow_action *actions,
4705 struct rte_flow_error *error)
4707 const struct mlx5_flow_driver_ops *fops;
4708 enum mlx5_flow_drv_type ftype = flow->drv_type;
4710 assert(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
4711 fops = flow_get_drv_ops(ftype);
4713 return fops->query(dev, flow, actions, data, error);
4719 * @see rte_flow_query()
4723 mlx5_flow_query(struct rte_eth_dev *dev,
4724 struct rte_flow *flow,
4725 const struct rte_flow_action *actions,
4727 struct rte_flow_error *error)
4731 ret = flow_drv_query(dev, flow, actions, data, error);
4738 * Convert a flow director filter to a generic flow.
4741 * Pointer to Ethernet device.
4742 * @param fdir_filter
4743 * Flow director filter to add.
4745 * Generic flow parameters structure.
4748 * 0 on success, a negative errno value otherwise and rte_errno is set.
4751 flow_fdir_filter_convert(struct rte_eth_dev *dev,
4752 const struct rte_eth_fdir_filter *fdir_filter,
4753 struct mlx5_fdir *attributes)
4755 struct mlx5_priv *priv = dev->data->dev_private;
4756 const struct rte_eth_fdir_input *input = &fdir_filter->input;
4757 const struct rte_eth_fdir_masks *mask =
4758 &dev->data->dev_conf.fdir_conf.mask;
4760 /* Validate queue number. */
4761 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
4762 DRV_LOG(ERR, "port %u invalid queue number %d",
4763 dev->data->port_id, fdir_filter->action.rx_queue);
4767 attributes->attr.ingress = 1;
4768 attributes->items[0] = (struct rte_flow_item) {
4769 .type = RTE_FLOW_ITEM_TYPE_ETH,
4770 .spec = &attributes->l2,
4771 .mask = &attributes->l2_mask,
4773 switch (fdir_filter->action.behavior) {
4774 case RTE_ETH_FDIR_ACCEPT:
4775 attributes->actions[0] = (struct rte_flow_action){
4776 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
4777 .conf = &attributes->queue,
4780 case RTE_ETH_FDIR_REJECT:
4781 attributes->actions[0] = (struct rte_flow_action){
4782 .type = RTE_FLOW_ACTION_TYPE_DROP,
4786 DRV_LOG(ERR, "port %u invalid behavior %d",
4788 fdir_filter->action.behavior);
4789 rte_errno = ENOTSUP;
4792 attributes->queue.index = fdir_filter->action.rx_queue;
4794 switch (fdir_filter->input.flow_type) {
4795 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4796 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4797 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4798 attributes->l3.ipv4.hdr = (struct rte_ipv4_hdr){
4799 .src_addr = input->flow.ip4_flow.src_ip,
4800 .dst_addr = input->flow.ip4_flow.dst_ip,
4801 .time_to_live = input->flow.ip4_flow.ttl,
4802 .type_of_service = input->flow.ip4_flow.tos,
4804 attributes->l3_mask.ipv4.hdr = (struct rte_ipv4_hdr){
4805 .src_addr = mask->ipv4_mask.src_ip,
4806 .dst_addr = mask->ipv4_mask.dst_ip,
4807 .time_to_live = mask->ipv4_mask.ttl,
4808 .type_of_service = mask->ipv4_mask.tos,
4809 .next_proto_id = mask->ipv4_mask.proto,
4811 attributes->items[1] = (struct rte_flow_item){
4812 .type = RTE_FLOW_ITEM_TYPE_IPV4,
4813 .spec = &attributes->l3,
4814 .mask = &attributes->l3_mask,
4817 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4818 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4819 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4820 attributes->l3.ipv6.hdr = (struct rte_ipv6_hdr){
4821 .hop_limits = input->flow.ipv6_flow.hop_limits,
4822 .proto = input->flow.ipv6_flow.proto,
4825 memcpy(attributes->l3.ipv6.hdr.src_addr,
4826 input->flow.ipv6_flow.src_ip,
4827 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4828 memcpy(attributes->l3.ipv6.hdr.dst_addr,
4829 input->flow.ipv6_flow.dst_ip,
4830 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4831 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
4832 mask->ipv6_mask.src_ip,
4833 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4834 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
4835 mask->ipv6_mask.dst_ip,
4836 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4837 attributes->items[1] = (struct rte_flow_item){
4838 .type = RTE_FLOW_ITEM_TYPE_IPV6,
4839 .spec = &attributes->l3,
4840 .mask = &attributes->l3_mask,
4844 DRV_LOG(ERR, "port %u invalid flow type%d",
4845 dev->data->port_id, fdir_filter->input.flow_type);
4846 rte_errno = ENOTSUP;
4850 switch (fdir_filter->input.flow_type) {
4851 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4852 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4853 .src_port = input->flow.udp4_flow.src_port,
4854 .dst_port = input->flow.udp4_flow.dst_port,
4856 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4857 .src_port = mask->src_port_mask,
4858 .dst_port = mask->dst_port_mask,
4860 attributes->items[2] = (struct rte_flow_item){
4861 .type = RTE_FLOW_ITEM_TYPE_UDP,
4862 .spec = &attributes->l4,
4863 .mask = &attributes->l4_mask,
4866 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4867 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4868 .src_port = input->flow.tcp4_flow.src_port,
4869 .dst_port = input->flow.tcp4_flow.dst_port,
4871 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4872 .src_port = mask->src_port_mask,
4873 .dst_port = mask->dst_port_mask,
4875 attributes->items[2] = (struct rte_flow_item){
4876 .type = RTE_FLOW_ITEM_TYPE_TCP,
4877 .spec = &attributes->l4,
4878 .mask = &attributes->l4_mask,
4881 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4882 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4883 .src_port = input->flow.udp6_flow.src_port,
4884 .dst_port = input->flow.udp6_flow.dst_port,
4886 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4887 .src_port = mask->src_port_mask,
4888 .dst_port = mask->dst_port_mask,
4890 attributes->items[2] = (struct rte_flow_item){
4891 .type = RTE_FLOW_ITEM_TYPE_UDP,
4892 .spec = &attributes->l4,
4893 .mask = &attributes->l4_mask,
4896 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4897 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4898 .src_port = input->flow.tcp6_flow.src_port,
4899 .dst_port = input->flow.tcp6_flow.dst_port,
4901 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4902 .src_port = mask->src_port_mask,
4903 .dst_port = mask->dst_port_mask,
4905 attributes->items[2] = (struct rte_flow_item){
4906 .type = RTE_FLOW_ITEM_TYPE_TCP,
4907 .spec = &attributes->l4,
4908 .mask = &attributes->l4_mask,
4911 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4912 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4915 DRV_LOG(ERR, "port %u invalid flow type%d",
4916 dev->data->port_id, fdir_filter->input.flow_type);
4917 rte_errno = ENOTSUP;
4923 #define FLOW_FDIR_CMP(f1, f2, fld) \
4924 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
4927 * Compare two FDIR flows. If items and actions are identical, the two flows are
4931 * Pointer to Ethernet device.
4933 * FDIR flow to compare.
4935 * FDIR flow to compare.
4938 * Zero on match, 1 otherwise.
4941 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
4943 if (FLOW_FDIR_CMP(f1, f2, attr) ||
4944 FLOW_FDIR_CMP(f1, f2, l2) ||
4945 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
4946 FLOW_FDIR_CMP(f1, f2, l3) ||
4947 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
4948 FLOW_FDIR_CMP(f1, f2, l4) ||
4949 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
4950 FLOW_FDIR_CMP(f1, f2, actions[0].type))
4952 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
4953 FLOW_FDIR_CMP(f1, f2, queue))
4959 * Search device flow list to find out a matched FDIR flow.
4962 * Pointer to Ethernet device.
4964 * FDIR flow to lookup.
4967 * Pointer of flow if found, NULL otherwise.
4969 static struct rte_flow *
4970 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
4972 struct mlx5_priv *priv = dev->data->dev_private;
4973 struct rte_flow *flow = NULL;
4976 TAILQ_FOREACH(flow, &priv->flows, next) {
4977 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
4978 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
4979 dev->data->port_id, (void *)flow);
4987 * Add new flow director filter and store it in list.
4990 * Pointer to Ethernet device.
4991 * @param fdir_filter
4992 * Flow director filter to add.
4995 * 0 on success, a negative errno value otherwise and rte_errno is set.
4998 flow_fdir_filter_add(struct rte_eth_dev *dev,
4999 const struct rte_eth_fdir_filter *fdir_filter)
5001 struct mlx5_priv *priv = dev->data->dev_private;
5002 struct mlx5_fdir *fdir_flow;
5003 struct rte_flow *flow;
5006 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
5011 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
5014 flow = flow_fdir_filter_lookup(dev, fdir_flow);
5019 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
5020 fdir_flow->items, fdir_flow->actions, true,
5024 assert(!flow->fdir);
5025 flow->fdir = fdir_flow;
5026 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
5027 dev->data->port_id, (void *)flow);
5030 rte_free(fdir_flow);
5035 * Delete specific filter.
5038 * Pointer to Ethernet device.
5039 * @param fdir_filter
5040 * Filter to be deleted.
5043 * 0 on success, a negative errno value otherwise and rte_errno is set.
5046 flow_fdir_filter_delete(struct rte_eth_dev *dev,
5047 const struct rte_eth_fdir_filter *fdir_filter)
5049 struct mlx5_priv *priv = dev->data->dev_private;
5050 struct rte_flow *flow;
5051 struct mlx5_fdir fdir_flow = {
5056 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
5059 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
5064 flow_list_destroy(dev, &priv->flows, flow);
5065 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
5066 dev->data->port_id, (void *)flow);
5071 * Update queue for specific filter.
5074 * Pointer to Ethernet device.
5075 * @param fdir_filter
5076 * Filter to be updated.
5079 * 0 on success, a negative errno value otherwise and rte_errno is set.
5082 flow_fdir_filter_update(struct rte_eth_dev *dev,
5083 const struct rte_eth_fdir_filter *fdir_filter)
5087 ret = flow_fdir_filter_delete(dev, fdir_filter);
5090 return flow_fdir_filter_add(dev, fdir_filter);
5094 * Flush all filters.
5097 * Pointer to Ethernet device.
5100 flow_fdir_filter_flush(struct rte_eth_dev *dev)
5102 struct mlx5_priv *priv = dev->data->dev_private;
5104 mlx5_flow_list_flush(dev, &priv->flows);
5108 * Get flow director information.
5111 * Pointer to Ethernet device.
5112 * @param[out] fdir_info
5113 * Resulting flow director information.
5116 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
5118 struct rte_eth_fdir_masks *mask =
5119 &dev->data->dev_conf.fdir_conf.mask;
5121 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
5122 fdir_info->guarant_spc = 0;
5123 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
5124 fdir_info->max_flexpayload = 0;
5125 fdir_info->flow_types_mask[0] = 0;
5126 fdir_info->flex_payload_unit = 0;
5127 fdir_info->max_flex_payload_segment_num = 0;
5128 fdir_info->flex_payload_limit = 0;
5129 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
5133 * Deal with flow director operations.
5136 * Pointer to Ethernet device.
5138 * Operation to perform.
5140 * Pointer to operation-specific structure.
5143 * 0 on success, a negative errno value otherwise and rte_errno is set.
5146 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
5149 enum rte_fdir_mode fdir_mode =
5150 dev->data->dev_conf.fdir_conf.mode;
5152 if (filter_op == RTE_ETH_FILTER_NOP)
5154 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
5155 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
5156 DRV_LOG(ERR, "port %u flow director mode %d not supported",
5157 dev->data->port_id, fdir_mode);
5161 switch (filter_op) {
5162 case RTE_ETH_FILTER_ADD:
5163 return flow_fdir_filter_add(dev, arg);
5164 case RTE_ETH_FILTER_UPDATE:
5165 return flow_fdir_filter_update(dev, arg);
5166 case RTE_ETH_FILTER_DELETE:
5167 return flow_fdir_filter_delete(dev, arg);
5168 case RTE_ETH_FILTER_FLUSH:
5169 flow_fdir_filter_flush(dev);
5171 case RTE_ETH_FILTER_INFO:
5172 flow_fdir_info_get(dev, arg);
5175 DRV_LOG(DEBUG, "port %u unknown operation %u",
5176 dev->data->port_id, filter_op);
5184 * Manage filter operations.
5187 * Pointer to Ethernet device structure.
5188 * @param filter_type
5191 * Operation to perform.
5193 * Pointer to operation-specific structure.
5196 * 0 on success, a negative errno value otherwise and rte_errno is set.
5199 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
5200 enum rte_filter_type filter_type,
5201 enum rte_filter_op filter_op,
5204 switch (filter_type) {
5205 case RTE_ETH_FILTER_GENERIC:
5206 if (filter_op != RTE_ETH_FILTER_GET) {
5210 *(const void **)arg = &mlx5_flow_ops;
5212 case RTE_ETH_FILTER_FDIR:
5213 return flow_fdir_ctrl_func(dev, filter_op, arg);
5215 DRV_LOG(ERR, "port %u filter type (%d) not supported",
5216 dev->data->port_id, filter_type);
5217 rte_errno = ENOTSUP;
5224 * Create the needed meter and suffix tables.
5227 * Pointer to Ethernet device.
5229 * Pointer to the flow meter.
5232 * Pointer to table set on success, NULL otherwise.
5234 struct mlx5_meter_domains_infos *
5235 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
5236 const struct mlx5_flow_meter *fm)
5238 const struct mlx5_flow_driver_ops *fops;
5240 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5241 return fops->create_mtr_tbls(dev, fm);
5245 * Destroy the meter table set.
5248 * Pointer to Ethernet device.
5250 * Pointer to the meter table set.
5256 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
5257 struct mlx5_meter_domains_infos *tbls)
5259 const struct mlx5_flow_driver_ops *fops;
5261 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5262 return fops->destroy_mtr_tbls(dev, tbls);
5266 * Create policer rules.
5269 * Pointer to Ethernet device.
5271 * Pointer to flow meter structure.
5273 * Pointer to flow attributes.
5276 * 0 on success, -1 otherwise.
5279 mlx5_flow_create_policer_rules(struct rte_eth_dev *dev,
5280 struct mlx5_flow_meter *fm,
5281 const struct rte_flow_attr *attr)
5283 const struct mlx5_flow_driver_ops *fops;
5285 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5286 return fops->create_policer_rules(dev, fm, attr);
5290 * Destroy policer rules.
5293 * Pointer to flow meter structure.
5295 * Pointer to flow attributes.
5298 * 0 on success, -1 otherwise.
5301 mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev,
5302 struct mlx5_flow_meter *fm,
5303 const struct rte_flow_attr *attr)
5305 const struct mlx5_flow_driver_ops *fops;
5307 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5308 return fops->destroy_policer_rules(dev, fm, attr);
5312 * Allocate a counter.
5315 * Pointer to Ethernet device structure.
5318 * Pointer to allocated counter on success, NULL otherwise.
5320 struct mlx5_flow_counter *
5321 mlx5_counter_alloc(struct rte_eth_dev *dev)
5323 const struct mlx5_flow_driver_ops *fops;
5324 struct rte_flow_attr attr = { .transfer = 0 };
5326 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5327 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5328 return fops->counter_alloc(dev);
5331 "port %u counter allocate is not supported.",
5332 dev->data->port_id);
5340 * Pointer to Ethernet device structure.
5342 * Pointer to counter to be free.
5345 mlx5_counter_free(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt)
5347 const struct mlx5_flow_driver_ops *fops;
5348 struct rte_flow_attr attr = { .transfer = 0 };
5350 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5351 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5352 fops->counter_free(dev, cnt);
5356 "port %u counter free is not supported.",
5357 dev->data->port_id);
5361 * Query counter statistics.
5364 * Pointer to Ethernet device structure.
5366 * Pointer to counter to query.
5368 * Set to clear counter statistics.
5370 * The counter hits packets number to save.
5372 * The counter hits bytes number to save.
5375 * 0 on success, a negative errno value otherwise.
5378 mlx5_counter_query(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt,
5379 bool clear, uint64_t *pkts, uint64_t *bytes)
5381 const struct mlx5_flow_driver_ops *fops;
5382 struct rte_flow_attr attr = { .transfer = 0 };
5384 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5385 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5386 return fops->counter_query(dev, cnt, clear, pkts, bytes);
5389 "port %u counter query is not supported.",
5390 dev->data->port_id);
5394 #define MLX5_POOL_QUERY_FREQ_US 1000000
5397 * Set the periodic procedure for triggering asynchronous batch queries for all
5398 * the counter pools.
5401 * Pointer to mlx5_ibv_shared object.
5404 mlx5_set_query_alarm(struct mlx5_ibv_shared *sh)
5406 struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(sh, 0, 0);
5407 uint32_t pools_n = rte_atomic16_read(&cont->n_valid);
5410 cont = MLX5_CNT_CONTAINER(sh, 1, 0);
5411 pools_n += rte_atomic16_read(&cont->n_valid);
5412 us = MLX5_POOL_QUERY_FREQ_US / pools_n;
5413 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
5414 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
5415 sh->cmng.query_thread_on = 0;
5416 DRV_LOG(ERR, "Cannot reinitialize query alarm");
5418 sh->cmng.query_thread_on = 1;
5423 * The periodic procedure for triggering asynchronous batch queries for all the
5424 * counter pools. This function is probably called by the host thread.
5427 * The parameter for the alarm process.
5430 mlx5_flow_query_alarm(void *arg)
5432 struct mlx5_ibv_shared *sh = arg;
5433 struct mlx5_devx_obj *dcs;
5436 uint8_t batch = sh->cmng.batch;
5437 uint16_t pool_index = sh->cmng.pool_index;
5438 struct mlx5_pools_container *cont;
5439 struct mlx5_pools_container *mcont;
5440 struct mlx5_flow_counter_pool *pool;
5442 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
5445 cont = MLX5_CNT_CONTAINER(sh, batch, 1);
5446 mcont = MLX5_CNT_CONTAINER(sh, batch, 0);
5447 /* Check if resize was done and need to flip a container. */
5448 if (cont != mcont) {
5450 /* Clean the old container. */
5451 rte_free(cont->pools);
5452 memset(cont, 0, sizeof(*cont));
5455 /* Flip the host container. */
5456 sh->cmng.mhi[batch] ^= (uint8_t)2;
5460 /* 2 empty containers case is unexpected. */
5461 if (unlikely(batch != sh->cmng.batch))
5465 goto next_container;
5467 pool = cont->pools[pool_index];
5469 /* There is a pool query in progress. */
5472 LIST_FIRST(&sh->cmng.free_stat_raws);
5474 /* No free counter statistics raw memory. */
5476 dcs = (struct mlx5_devx_obj *)(uintptr_t)rte_atomic64_read
5478 offset = batch ? 0 : dcs->id % MLX5_COUNTERS_PER_POOL;
5479 ret = mlx5_devx_cmd_flow_counter_query(dcs, 0, MLX5_COUNTERS_PER_POOL -
5481 pool->raw_hw->mem_mng->dm->id,
5483 (pool->raw_hw->data + offset),
5485 (uint64_t)(uintptr_t)pool);
5487 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
5488 " %d", pool->min_dcs->id);
5489 pool->raw_hw = NULL;
5492 pool->raw_hw->min_dcs_id = dcs->id;
5493 LIST_REMOVE(pool->raw_hw, next);
5494 sh->cmng.pending_queries++;
5496 if (pool_index >= rte_atomic16_read(&cont->n_valid)) {
5501 sh->cmng.batch = batch;
5502 sh->cmng.pool_index = pool_index;
5503 mlx5_set_query_alarm(sh);
5507 * Handler for the HW respond about ready values from an asynchronous batch
5508 * query. This function is probably called by the host thread.
5511 * The pointer to the shared IB device context.
5512 * @param[in] async_id
5513 * The Devx async ID.
5515 * The status of the completion.
5518 mlx5_flow_async_pool_query_handle(struct mlx5_ibv_shared *sh,
5519 uint64_t async_id, int status)
5521 struct mlx5_flow_counter_pool *pool =
5522 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
5523 struct mlx5_counter_stats_raw *raw_to_free;
5525 if (unlikely(status)) {
5526 raw_to_free = pool->raw_hw;
5528 raw_to_free = pool->raw;
5529 rte_spinlock_lock(&pool->sl);
5530 pool->raw = pool->raw_hw;
5531 rte_spinlock_unlock(&pool->sl);
5532 rte_atomic64_add(&pool->query_gen, 1);
5533 /* Be sure the new raw counters data is updated in memory. */
5536 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
5537 pool->raw_hw = NULL;
5538 sh->cmng.pending_queries--;
5542 * Translate the rte_flow group index to HW table value.
5544 * @param[in] attributes
5545 * Pointer to flow attributes
5546 * @param[in] external
5547 * Value is part of flow rule created by request external to PMD.
5549 * rte_flow group index value.
5553 * Pointer to error structure.
5556 * 0 on success, a negative errno value otherwise and rte_errno is set.
5559 mlx5_flow_group_to_table(const struct rte_flow_attr *attributes, bool external,
5560 uint32_t group, uint32_t *table,
5561 struct rte_flow_error *error)
5563 if (attributes->transfer && external) {
5564 if (group == UINT32_MAX)
5565 return rte_flow_error_set
5567 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
5569 "group index not supported");
5578 * Discover availability of metadata reg_c's.
5580 * Iteratively use test flows to check availability.
5583 * Pointer to the Ethernet device structure.
5586 * 0 on success, a negative errno value otherwise and rte_errno is set.
5589 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
5591 struct mlx5_priv *priv = dev->data->dev_private;
5592 struct mlx5_dev_config *config = &priv->config;
5593 enum modify_reg idx;
5596 /* reg_c[0] and reg_c[1] are reserved. */
5597 config->flow_mreg_c[n++] = REG_C_0;
5598 config->flow_mreg_c[n++] = REG_C_1;
5599 /* Discover availability of other reg_c's. */
5600 for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
5601 struct rte_flow_attr attr = {
5602 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
5603 .priority = MLX5_FLOW_PRIO_RSVD,
5606 struct rte_flow_item items[] = {
5608 .type = RTE_FLOW_ITEM_TYPE_END,
5611 struct rte_flow_action actions[] = {
5613 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5614 .conf = &(struct mlx5_flow_action_copy_mreg){
5620 .type = RTE_FLOW_ACTION_TYPE_JUMP,
5621 .conf = &(struct rte_flow_action_jump){
5622 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5626 .type = RTE_FLOW_ACTION_TYPE_END,
5629 struct rte_flow *flow;
5630 struct rte_flow_error error;
5632 if (!config->dv_flow_en)
5634 /* Create internal flow, validation skips copy action. */
5635 flow = flow_list_create(dev, NULL, &attr, items,
5636 actions, false, &error);
5639 if (dev->data->dev_started || !flow_drv_apply(dev, flow, NULL))
5640 config->flow_mreg_c[n++] = idx;
5641 flow_list_destroy(dev, NULL, flow);
5643 for (; n < MLX5_MREG_C_NUM; ++n)
5644 config->flow_mreg_c[n] = REG_NONE;