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:
367 switch (config->dv_xmeta_en) {
368 case MLX5_XMETA_MODE_LEGACY:
370 case MLX5_XMETA_MODE_META16:
372 case MLX5_XMETA_MODE_META32:
377 switch (config->dv_xmeta_en) {
378 case MLX5_XMETA_MODE_LEGACY:
380 case MLX5_XMETA_MODE_META16:
382 case MLX5_XMETA_MODE_META32:
389 * Metadata COPY_MARK register using is in meter suffix sub
390 * flow while with meter. It's safe to share the same register.
392 return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3;
394 RTE_ASSERT(priv->mtr_color_reg != REG_NONE);
395 return priv->mtr_color_reg;
398 * If meter is enable, it will engage two registers for color
399 * match and flow match. If meter color match is not using the
400 * REG_C_2, need to skip the REG_C_x be used by meter color
402 * If meter is disable, free to use all available registers.
404 if (priv->mtr_color_reg != REG_NONE)
405 start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_3 :
409 if (id > (REG_C_7 - start_reg))
410 return rte_flow_error_set(error, EINVAL,
411 RTE_FLOW_ERROR_TYPE_ITEM,
412 NULL, "invalid tag id");
413 if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NONE)
414 return rte_flow_error_set(error, ENOTSUP,
415 RTE_FLOW_ERROR_TYPE_ITEM,
416 NULL, "unsupported tag id");
418 * This case means meter is using the REG_C_x great than 2.
419 * Take care not to conflict with meter color REG_C_x.
420 * If the available index REG_C_y >= REG_C_x, skip the
423 if (start_reg == REG_C_3 && config->flow_mreg_c
424 [id + REG_C_3 - REG_C_0] >= priv->mtr_color_reg) {
425 if (config->flow_mreg_c[id + 1 + REG_C_3 - REG_C_0] !=
427 return config->flow_mreg_c
428 [id + 1 + REG_C_3 - REG_C_0];
429 return rte_flow_error_set(error, ENOTSUP,
430 RTE_FLOW_ERROR_TYPE_ITEM,
431 NULL, "unsupported tag id");
433 return config->flow_mreg_c[id + start_reg - REG_C_0];
436 return rte_flow_error_set(error, EINVAL,
437 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
438 NULL, "invalid feature name");
442 * Check extensive flow metadata register support.
445 * Pointer to rte_eth_dev structure.
448 * True if device supports extensive flow metadata register, otherwise false.
451 mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev)
453 struct mlx5_priv *priv = dev->data->dev_private;
454 struct mlx5_dev_config *config = &priv->config;
457 * Having available reg_c can be regarded inclusively as supporting
458 * extensive flow metadata register, which could mean,
459 * - metadata register copy action by modify header.
460 * - 16 modify header actions is supported.
461 * - reg_c's are preserved across different domain (FDB and NIC) on
462 * packet loopback by flow lookup miss.
464 return config->flow_mreg_c[2] != REG_NONE;
468 * Discover the maximum number of priority available.
471 * Pointer to the Ethernet device structure.
474 * number of supported flow priority on success, a negative errno
475 * value otherwise and rte_errno is set.
478 mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
480 struct mlx5_priv *priv = dev->data->dev_private;
482 struct ibv_flow_attr attr;
483 struct ibv_flow_spec_eth eth;
484 struct ibv_flow_spec_action_drop drop;
488 .port = (uint8_t)priv->ibv_port,
491 .type = IBV_FLOW_SPEC_ETH,
492 .size = sizeof(struct ibv_flow_spec_eth),
495 .size = sizeof(struct ibv_flow_spec_action_drop),
496 .type = IBV_FLOW_SPEC_ACTION_DROP,
499 struct ibv_flow *flow;
500 struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
501 uint16_t vprio[] = { 8, 16 };
509 for (i = 0; i != RTE_DIM(vprio); i++) {
510 flow_attr.attr.priority = vprio[i] - 1;
511 flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
514 claim_zero(mlx5_glue->destroy_flow(flow));
517 mlx5_hrxq_drop_release(dev);
520 priority = RTE_DIM(priority_map_3);
523 priority = RTE_DIM(priority_map_5);
528 "port %u verbs maximum priority: %d expected 8/16",
529 dev->data->port_id, priority);
532 DRV_LOG(INFO, "port %u flow maximum priority: %d",
533 dev->data->port_id, priority);
538 * Adjust flow priority based on the highest layer and the request priority.
541 * Pointer to the Ethernet device structure.
542 * @param[in] priority
543 * The rule base priority.
544 * @param[in] subpriority
545 * The priority based on the items.
550 uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
551 uint32_t subpriority)
554 struct mlx5_priv *priv = dev->data->dev_private;
556 switch (priv->config.flow_prio) {
557 case RTE_DIM(priority_map_3):
558 res = priority_map_3[priority][subpriority];
560 case RTE_DIM(priority_map_5):
561 res = priority_map_5[priority][subpriority];
568 * Verify the @p item specifications (spec, last, mask) are compatible with the
572 * Item specification.
574 * @p item->mask or flow default bit-masks.
575 * @param[in] nic_mask
576 * Bit-masks covering supported fields by the NIC to compare with user mask.
578 * Bit-masks size in bytes.
580 * Pointer to error structure.
583 * 0 on success, a negative errno value otherwise and rte_errno is set.
586 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
588 const uint8_t *nic_mask,
590 struct rte_flow_error *error)
595 for (i = 0; i < size; ++i)
596 if ((nic_mask[i] | mask[i]) != nic_mask[i])
597 return rte_flow_error_set(error, ENOTSUP,
598 RTE_FLOW_ERROR_TYPE_ITEM,
600 "mask enables non supported"
602 if (!item->spec && (item->mask || item->last))
603 return rte_flow_error_set(error, EINVAL,
604 RTE_FLOW_ERROR_TYPE_ITEM, item,
605 "mask/last without a spec is not"
607 if (item->spec && item->last) {
613 for (i = 0; i < size; ++i) {
614 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
615 last[i] = ((const uint8_t *)item->last)[i] & mask[i];
617 ret = memcmp(spec, last, size);
619 return rte_flow_error_set(error, EINVAL,
620 RTE_FLOW_ERROR_TYPE_ITEM,
622 "range is not valid");
628 * Adjust the hash fields according to the @p flow information.
630 * @param[in] dev_flow.
631 * Pointer to the mlx5_flow.
633 * 1 when the hash field is for a tunnel item.
634 * @param[in] layer_types
636 * @param[in] hash_fields
640 * The hash fields that should be used.
643 mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow,
644 int tunnel __rte_unused, uint64_t layer_types,
645 uint64_t hash_fields)
647 struct rte_flow *flow = dev_flow->flow;
648 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
649 int rss_request_inner = flow->rss.level >= 2;
651 /* Check RSS hash level for tunnel. */
652 if (tunnel && rss_request_inner)
653 hash_fields |= IBV_RX_HASH_INNER;
654 else if (tunnel || rss_request_inner)
657 /* Check if requested layer matches RSS hash fields. */
658 if (!(flow->rss.types & layer_types))
664 * Lookup and set the ptype in the data Rx part. A single Ptype can be used,
665 * if several tunnel rules are used on this queue, the tunnel ptype will be
669 * Rx queue to update.
672 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
675 uint32_t tunnel_ptype = 0;
677 /* Look up for the ptype to use. */
678 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
679 if (!rxq_ctrl->flow_tunnels_n[i])
682 tunnel_ptype = tunnels_info[i].ptype;
688 rxq_ctrl->rxq.tunnel = tunnel_ptype;
692 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
696 * Pointer to the Ethernet device structure.
697 * @param[in] dev_flow
698 * Pointer to device flow structure.
701 flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
703 struct mlx5_priv *priv = dev->data->dev_private;
704 struct rte_flow *flow = dev_flow->flow;
705 const int mark = !!(dev_flow->actions &
706 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
707 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
710 for (i = 0; i != flow->rss.queue_num; ++i) {
711 int idx = (*flow->rss.queue)[i];
712 struct mlx5_rxq_ctrl *rxq_ctrl =
713 container_of((*priv->rxqs)[idx],
714 struct mlx5_rxq_ctrl, rxq);
717 * To support metadata register copy on Tx loopback,
718 * this must be always enabled (metadata may arive
719 * from other port - not from local flows only.
721 if (priv->config.dv_flow_en &&
722 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
723 mlx5_flow_ext_mreg_supported(dev)) {
724 rxq_ctrl->rxq.mark = 1;
725 rxq_ctrl->flow_mark_n = 1;
727 rxq_ctrl->rxq.mark = 1;
728 rxq_ctrl->flow_mark_n++;
733 /* Increase the counter matching the flow. */
734 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
735 if ((tunnels_info[j].tunnel &
737 tunnels_info[j].tunnel) {
738 rxq_ctrl->flow_tunnels_n[j]++;
742 flow_rxq_tunnel_ptype_update(rxq_ctrl);
748 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
751 * Pointer to the Ethernet device structure.
753 * Pointer to flow structure.
756 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
758 struct mlx5_flow *dev_flow;
760 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
761 flow_drv_rxq_flags_set(dev, dev_flow);
765 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
766 * device flow if no other flow uses it with the same kind of request.
769 * Pointer to Ethernet device.
770 * @param[in] dev_flow
771 * Pointer to the device flow.
774 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
776 struct mlx5_priv *priv = dev->data->dev_private;
777 struct rte_flow *flow = dev_flow->flow;
778 const int mark = !!(dev_flow->actions &
779 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
780 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
783 assert(dev->data->dev_started);
784 for (i = 0; i != flow->rss.queue_num; ++i) {
785 int idx = (*flow->rss.queue)[i];
786 struct mlx5_rxq_ctrl *rxq_ctrl =
787 container_of((*priv->rxqs)[idx],
788 struct mlx5_rxq_ctrl, rxq);
790 if (priv->config.dv_flow_en &&
791 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
792 mlx5_flow_ext_mreg_supported(dev)) {
793 rxq_ctrl->rxq.mark = 1;
794 rxq_ctrl->flow_mark_n = 1;
796 rxq_ctrl->flow_mark_n--;
797 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
802 /* Decrease the counter matching the flow. */
803 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
804 if ((tunnels_info[j].tunnel &
806 tunnels_info[j].tunnel) {
807 rxq_ctrl->flow_tunnels_n[j]--;
811 flow_rxq_tunnel_ptype_update(rxq_ctrl);
817 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
818 * @p flow if no other flow uses it with the same kind of request.
821 * Pointer to Ethernet device.
823 * Pointer to the flow.
826 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
828 struct mlx5_flow *dev_flow;
830 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
831 flow_drv_rxq_flags_trim(dev, dev_flow);
835 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
838 * Pointer to Ethernet device.
841 flow_rxq_flags_clear(struct rte_eth_dev *dev)
843 struct mlx5_priv *priv = dev->data->dev_private;
846 for (i = 0; i != priv->rxqs_n; ++i) {
847 struct mlx5_rxq_ctrl *rxq_ctrl;
850 if (!(*priv->rxqs)[i])
852 rxq_ctrl = container_of((*priv->rxqs)[i],
853 struct mlx5_rxq_ctrl, rxq);
854 rxq_ctrl->flow_mark_n = 0;
855 rxq_ctrl->rxq.mark = 0;
856 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
857 rxq_ctrl->flow_tunnels_n[j] = 0;
858 rxq_ctrl->rxq.tunnel = 0;
863 * return a pointer to the desired action in the list of actions.
866 * The list of actions to search the action in.
868 * The action to find.
871 * Pointer to the action in the list, if found. NULL otherwise.
873 const struct rte_flow_action *
874 mlx5_flow_find_action(const struct rte_flow_action *actions,
875 enum rte_flow_action_type action)
879 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++)
880 if (actions->type == action)
886 * Validate the flag action.
888 * @param[in] action_flags
889 * Bit-fields that holds the actions detected until now.
891 * Attributes of flow that includes this action.
893 * Pointer to error structure.
896 * 0 on success, a negative errno value otherwise and rte_errno is set.
899 mlx5_flow_validate_action_flag(uint64_t action_flags,
900 const struct rte_flow_attr *attr,
901 struct rte_flow_error *error)
904 if (action_flags & MLX5_FLOW_ACTION_DROP)
905 return rte_flow_error_set(error, EINVAL,
906 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
907 "can't drop and flag in same flow");
908 if (action_flags & MLX5_FLOW_ACTION_MARK)
909 return rte_flow_error_set(error, EINVAL,
910 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
911 "can't mark and flag in same flow");
912 if (action_flags & MLX5_FLOW_ACTION_FLAG)
913 return rte_flow_error_set(error, EINVAL,
914 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
916 " actions in same flow");
918 return rte_flow_error_set(error, ENOTSUP,
919 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
920 "flag action not supported for "
926 * Validate the mark action.
929 * Pointer to the queue action.
930 * @param[in] action_flags
931 * Bit-fields that holds the actions detected until now.
933 * Attributes of flow that includes this action.
935 * Pointer to error structure.
938 * 0 on success, a negative errno value otherwise and rte_errno is set.
941 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
942 uint64_t action_flags,
943 const struct rte_flow_attr *attr,
944 struct rte_flow_error *error)
946 const struct rte_flow_action_mark *mark = action->conf;
949 return rte_flow_error_set(error, EINVAL,
950 RTE_FLOW_ERROR_TYPE_ACTION,
952 "configuration cannot be null");
953 if (mark->id >= MLX5_FLOW_MARK_MAX)
954 return rte_flow_error_set(error, EINVAL,
955 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
957 "mark id must in 0 <= id < "
958 RTE_STR(MLX5_FLOW_MARK_MAX));
959 if (action_flags & MLX5_FLOW_ACTION_DROP)
960 return rte_flow_error_set(error, EINVAL,
961 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
962 "can't drop and mark in same flow");
963 if (action_flags & MLX5_FLOW_ACTION_FLAG)
964 return rte_flow_error_set(error, EINVAL,
965 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
966 "can't flag and mark in same flow");
967 if (action_flags & MLX5_FLOW_ACTION_MARK)
968 return rte_flow_error_set(error, EINVAL,
969 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
970 "can't have 2 mark actions in same"
973 return rte_flow_error_set(error, ENOTSUP,
974 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
975 "mark action not supported for "
981 * Validate the drop action.
983 * @param[in] action_flags
984 * Bit-fields that holds the actions detected until now.
986 * Attributes of flow that includes this action.
988 * Pointer to error structure.
991 * 0 on success, a negative errno value otherwise and rte_errno is set.
994 mlx5_flow_validate_action_drop(uint64_t action_flags,
995 const struct rte_flow_attr *attr,
996 struct rte_flow_error *error)
998 if (action_flags & MLX5_FLOW_ACTION_FLAG)
999 return rte_flow_error_set(error, EINVAL,
1000 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1001 "can't drop and flag in same flow");
1002 if (action_flags & MLX5_FLOW_ACTION_MARK)
1003 return rte_flow_error_set(error, EINVAL,
1004 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1005 "can't drop and mark in same flow");
1006 if (action_flags & (MLX5_FLOW_FATE_ACTIONS |
1007 MLX5_FLOW_FATE_ESWITCH_ACTIONS))
1008 return rte_flow_error_set(error, EINVAL,
1009 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1010 "can't have 2 fate actions in"
1013 return rte_flow_error_set(error, ENOTSUP,
1014 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1015 "drop action not supported for "
1021 * Validate the queue action.
1024 * Pointer to the queue action.
1025 * @param[in] action_flags
1026 * Bit-fields that holds the actions detected until now.
1028 * Pointer to the Ethernet device structure.
1030 * Attributes of flow that includes this action.
1032 * Pointer to error structure.
1035 * 0 on success, a negative errno value otherwise and rte_errno is set.
1038 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
1039 uint64_t action_flags,
1040 struct rte_eth_dev *dev,
1041 const struct rte_flow_attr *attr,
1042 struct rte_flow_error *error)
1044 struct mlx5_priv *priv = dev->data->dev_private;
1045 const struct rte_flow_action_queue *queue = action->conf;
1047 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1048 return rte_flow_error_set(error, EINVAL,
1049 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1050 "can't have 2 fate actions in"
1053 return rte_flow_error_set(error, EINVAL,
1054 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1055 NULL, "No Rx queues configured");
1056 if (queue->index >= priv->rxqs_n)
1057 return rte_flow_error_set(error, EINVAL,
1058 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1060 "queue index out of range");
1061 if (!(*priv->rxqs)[queue->index])
1062 return rte_flow_error_set(error, EINVAL,
1063 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1065 "queue is not configured");
1067 return rte_flow_error_set(error, ENOTSUP,
1068 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1069 "queue action not supported for "
1075 * Validate the rss action.
1078 * Pointer to the queue action.
1079 * @param[in] action_flags
1080 * Bit-fields that holds the actions detected until now.
1082 * Pointer to the Ethernet device structure.
1084 * Attributes of flow that includes this action.
1085 * @param[in] item_flags
1086 * Items that were detected.
1088 * Pointer to error structure.
1091 * 0 on success, a negative errno value otherwise and rte_errno is set.
1094 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
1095 uint64_t action_flags,
1096 struct rte_eth_dev *dev,
1097 const struct rte_flow_attr *attr,
1098 uint64_t item_flags,
1099 struct rte_flow_error *error)
1101 struct mlx5_priv *priv = dev->data->dev_private;
1102 const struct rte_flow_action_rss *rss = action->conf;
1103 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1106 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
1107 return rte_flow_error_set(error, EINVAL,
1108 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
1109 "can't have 2 fate actions"
1111 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
1112 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
1113 return rte_flow_error_set(error, ENOTSUP,
1114 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1116 "RSS hash function not supported");
1117 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1122 return rte_flow_error_set(error, ENOTSUP,
1123 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1125 "tunnel RSS is not supported");
1126 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
1127 if (rss->key_len == 0 && rss->key != NULL)
1128 return rte_flow_error_set(error, ENOTSUP,
1129 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1131 "RSS hash key length 0");
1132 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
1133 return rte_flow_error_set(error, ENOTSUP,
1134 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1136 "RSS hash key too small");
1137 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
1138 return rte_flow_error_set(error, ENOTSUP,
1139 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1141 "RSS hash key too large");
1142 if (rss->queue_num > priv->config.ind_table_max_size)
1143 return rte_flow_error_set(error, ENOTSUP,
1144 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1146 "number of queues too large");
1147 if (rss->types & MLX5_RSS_HF_MASK)
1148 return rte_flow_error_set(error, ENOTSUP,
1149 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1151 "some RSS protocols are not"
1154 return rte_flow_error_set(error, EINVAL,
1155 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1156 NULL, "No Rx queues configured");
1157 if (!rss->queue_num)
1158 return rte_flow_error_set(error, EINVAL,
1159 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1160 NULL, "No queues configured");
1161 for (i = 0; i != rss->queue_num; ++i) {
1162 if (rss->queue[i] >= priv->rxqs_n)
1163 return rte_flow_error_set
1165 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1166 &rss->queue[i], "queue index out of range");
1167 if (!(*priv->rxqs)[rss->queue[i]])
1168 return rte_flow_error_set
1169 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1170 &rss->queue[i], "queue is not configured");
1173 return rte_flow_error_set(error, ENOTSUP,
1174 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1175 "rss action not supported for "
1177 if (rss->level > 1 && !tunnel)
1178 return rte_flow_error_set(error, EINVAL,
1179 RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
1180 "inner RSS is not supported for "
1181 "non-tunnel flows");
1186 * Validate the count action.
1189 * Pointer to the Ethernet device structure.
1191 * Attributes of flow that includes this action.
1193 * Pointer to error structure.
1196 * 0 on success, a negative errno value otherwise and rte_errno is set.
1199 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
1200 const struct rte_flow_attr *attr,
1201 struct rte_flow_error *error)
1204 return rte_flow_error_set(error, ENOTSUP,
1205 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1206 "count action not supported for "
1212 * Verify the @p attributes will be correctly understood by the NIC and store
1213 * them in the @p flow if everything is correct.
1216 * Pointer to the Ethernet device structure.
1217 * @param[in] attributes
1218 * Pointer to flow attributes
1220 * Pointer to error structure.
1223 * 0 on success, a negative errno value otherwise and rte_errno is set.
1226 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1227 const struct rte_flow_attr *attributes,
1228 struct rte_flow_error *error)
1230 struct mlx5_priv *priv = dev->data->dev_private;
1231 uint32_t priority_max = priv->config.flow_prio - 1;
1233 if (attributes->group)
1234 return rte_flow_error_set(error, ENOTSUP,
1235 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1236 NULL, "groups is not supported");
1237 if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
1238 attributes->priority >= priority_max)
1239 return rte_flow_error_set(error, ENOTSUP,
1240 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1241 NULL, "priority out of range");
1242 if (attributes->egress)
1243 return rte_flow_error_set(error, ENOTSUP,
1244 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1245 "egress is not supported");
1246 if (attributes->transfer && !priv->config.dv_esw_en)
1247 return rte_flow_error_set(error, ENOTSUP,
1248 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1249 NULL, "transfer is not supported");
1250 if (!attributes->ingress)
1251 return rte_flow_error_set(error, EINVAL,
1252 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1254 "ingress attribute is mandatory");
1259 * Validate ICMP6 item.
1262 * Item specification.
1263 * @param[in] item_flags
1264 * Bit-fields that holds the items detected until now.
1266 * Pointer to error structure.
1269 * 0 on success, a negative errno value otherwise and rte_errno is set.
1272 mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item,
1273 uint64_t item_flags,
1274 uint8_t target_protocol,
1275 struct rte_flow_error *error)
1277 const struct rte_flow_item_icmp6 *mask = item->mask;
1278 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1279 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 :
1280 MLX5_FLOW_LAYER_OUTER_L3_IPV6;
1281 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1282 MLX5_FLOW_LAYER_OUTER_L4;
1285 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6)
1286 return rte_flow_error_set(error, EINVAL,
1287 RTE_FLOW_ERROR_TYPE_ITEM, item,
1288 "protocol filtering not compatible"
1289 " with ICMP6 layer");
1290 if (!(item_flags & l3m))
1291 return rte_flow_error_set(error, EINVAL,
1292 RTE_FLOW_ERROR_TYPE_ITEM, item,
1293 "IPv6 is mandatory to filter on"
1295 if (item_flags & l4m)
1296 return rte_flow_error_set(error, EINVAL,
1297 RTE_FLOW_ERROR_TYPE_ITEM, item,
1298 "multiple L4 layers not supported");
1300 mask = &rte_flow_item_icmp6_mask;
1301 ret = mlx5_flow_item_acceptable
1302 (item, (const uint8_t *)mask,
1303 (const uint8_t *)&rte_flow_item_icmp6_mask,
1304 sizeof(struct rte_flow_item_icmp6), error);
1311 * Validate ICMP item.
1314 * Item specification.
1315 * @param[in] item_flags
1316 * Bit-fields that holds the items detected until now.
1318 * Pointer to error structure.
1321 * 0 on success, a negative errno value otherwise and rte_errno is set.
1324 mlx5_flow_validate_item_icmp(const struct rte_flow_item *item,
1325 uint64_t item_flags,
1326 uint8_t target_protocol,
1327 struct rte_flow_error *error)
1329 const struct rte_flow_item_icmp *mask = item->mask;
1330 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1331 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 :
1332 MLX5_FLOW_LAYER_OUTER_L3_IPV4;
1333 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1334 MLX5_FLOW_LAYER_OUTER_L4;
1337 if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP)
1338 return rte_flow_error_set(error, EINVAL,
1339 RTE_FLOW_ERROR_TYPE_ITEM, item,
1340 "protocol filtering not compatible"
1341 " with ICMP layer");
1342 if (!(item_flags & l3m))
1343 return rte_flow_error_set(error, EINVAL,
1344 RTE_FLOW_ERROR_TYPE_ITEM, item,
1345 "IPv4 is mandatory to filter"
1347 if (item_flags & l4m)
1348 return rte_flow_error_set(error, EINVAL,
1349 RTE_FLOW_ERROR_TYPE_ITEM, item,
1350 "multiple L4 layers not supported");
1352 mask = &rte_flow_item_icmp_mask;
1353 ret = mlx5_flow_item_acceptable
1354 (item, (const uint8_t *)mask,
1355 (const uint8_t *)&rte_flow_item_icmp_mask,
1356 sizeof(struct rte_flow_item_icmp), error);
1363 * Validate Ethernet item.
1366 * Item specification.
1367 * @param[in] item_flags
1368 * Bit-fields that holds the items detected until now.
1370 * Pointer to error structure.
1373 * 0 on success, a negative errno value otherwise and rte_errno is set.
1376 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1377 uint64_t item_flags,
1378 struct rte_flow_error *error)
1380 const struct rte_flow_item_eth *mask = item->mask;
1381 const struct rte_flow_item_eth nic_mask = {
1382 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1383 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1384 .type = RTE_BE16(0xffff),
1387 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1388 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1389 MLX5_FLOW_LAYER_OUTER_L2;
1391 if (item_flags & ethm)
1392 return rte_flow_error_set(error, ENOTSUP,
1393 RTE_FLOW_ERROR_TYPE_ITEM, item,
1394 "multiple L2 layers not supported");
1395 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) ||
1396 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3)))
1397 return rte_flow_error_set(error, EINVAL,
1398 RTE_FLOW_ERROR_TYPE_ITEM, item,
1399 "L2 layer should not follow "
1401 if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) ||
1402 (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN)))
1403 return rte_flow_error_set(error, EINVAL,
1404 RTE_FLOW_ERROR_TYPE_ITEM, item,
1405 "L2 layer should not follow VLAN");
1407 mask = &rte_flow_item_eth_mask;
1408 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1409 (const uint8_t *)&nic_mask,
1410 sizeof(struct rte_flow_item_eth),
1416 * Validate VLAN item.
1419 * Item specification.
1420 * @param[in] item_flags
1421 * Bit-fields that holds the items detected until now.
1423 * Ethernet device flow is being created on.
1425 * Pointer to error structure.
1428 * 0 on success, a negative errno value otherwise and rte_errno is set.
1431 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1432 uint64_t item_flags,
1433 struct rte_eth_dev *dev,
1434 struct rte_flow_error *error)
1436 const struct rte_flow_item_vlan *spec = item->spec;
1437 const struct rte_flow_item_vlan *mask = item->mask;
1438 const struct rte_flow_item_vlan nic_mask = {
1439 .tci = RTE_BE16(UINT16_MAX),
1440 .inner_type = RTE_BE16(UINT16_MAX),
1442 uint16_t vlan_tag = 0;
1443 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1445 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1446 MLX5_FLOW_LAYER_INNER_L4) :
1447 (MLX5_FLOW_LAYER_OUTER_L3 |
1448 MLX5_FLOW_LAYER_OUTER_L4);
1449 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1450 MLX5_FLOW_LAYER_OUTER_VLAN;
1452 if (item_flags & vlanm)
1453 return rte_flow_error_set(error, EINVAL,
1454 RTE_FLOW_ERROR_TYPE_ITEM, item,
1455 "multiple VLAN layers not supported");
1456 else if ((item_flags & l34m) != 0)
1457 return rte_flow_error_set(error, EINVAL,
1458 RTE_FLOW_ERROR_TYPE_ITEM, item,
1459 "VLAN cannot follow L3/L4 layer");
1461 mask = &rte_flow_item_vlan_mask;
1462 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1463 (const uint8_t *)&nic_mask,
1464 sizeof(struct rte_flow_item_vlan),
1468 if (!tunnel && mask->tci != RTE_BE16(0x0fff)) {
1469 struct mlx5_priv *priv = dev->data->dev_private;
1471 if (priv->vmwa_context) {
1473 * Non-NULL context means we have a virtual machine
1474 * and SR-IOV enabled, we have to create VLAN interface
1475 * to make hypervisor to setup E-Switch vport
1476 * context correctly. We avoid creating the multiple
1477 * VLAN interfaces, so we cannot support VLAN tag mask.
1479 return rte_flow_error_set(error, EINVAL,
1480 RTE_FLOW_ERROR_TYPE_ITEM,
1482 "VLAN tag mask is not"
1483 " supported in virtual"
1488 vlan_tag = spec->tci;
1489 vlan_tag &= mask->tci;
1492 * From verbs perspective an empty VLAN is equivalent
1493 * to a packet without VLAN layer.
1496 return rte_flow_error_set(error, EINVAL,
1497 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1499 "VLAN cannot be empty");
1504 * Validate IPV4 item.
1507 * Item specification.
1508 * @param[in] item_flags
1509 * Bit-fields that holds the items detected until now.
1510 * @param[in] acc_mask
1511 * Acceptable mask, if NULL default internal default mask
1512 * will be used to check whether item fields are supported.
1514 * Pointer to error structure.
1517 * 0 on success, a negative errno value otherwise and rte_errno is set.
1520 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
1521 uint64_t item_flags,
1523 uint16_t ether_type,
1524 const struct rte_flow_item_ipv4 *acc_mask,
1525 struct rte_flow_error *error)
1527 const struct rte_flow_item_ipv4 *mask = item->mask;
1528 const struct rte_flow_item_ipv4 *spec = item->spec;
1529 const struct rte_flow_item_ipv4 nic_mask = {
1531 .src_addr = RTE_BE32(0xffffffff),
1532 .dst_addr = RTE_BE32(0xffffffff),
1533 .type_of_service = 0xff,
1534 .next_proto_id = 0xff,
1537 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1538 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1539 MLX5_FLOW_LAYER_OUTER_L3;
1540 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1541 MLX5_FLOW_LAYER_OUTER_L4;
1543 uint8_t next_proto = 0xFF;
1544 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1545 MLX5_FLOW_LAYER_OUTER_VLAN |
1546 MLX5_FLOW_LAYER_INNER_VLAN);
1548 if ((last_item & l2_vlan) && ether_type &&
1549 ether_type != RTE_ETHER_TYPE_IPV4)
1550 return rte_flow_error_set(error, EINVAL,
1551 RTE_FLOW_ERROR_TYPE_ITEM, item,
1552 "IPv4 cannot follow L2/VLAN layer "
1553 "which ether type is not IPv4");
1554 if (item_flags & MLX5_FLOW_LAYER_IPIP) {
1556 next_proto = mask->hdr.next_proto_id &
1557 spec->hdr.next_proto_id;
1558 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1559 return rte_flow_error_set(error, EINVAL,
1560 RTE_FLOW_ERROR_TYPE_ITEM,
1565 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP)
1566 return rte_flow_error_set(error, EINVAL,
1567 RTE_FLOW_ERROR_TYPE_ITEM, item,
1568 "wrong tunnel type - IPv6 specified "
1569 "but IPv4 item provided");
1570 if (item_flags & l3m)
1571 return rte_flow_error_set(error, ENOTSUP,
1572 RTE_FLOW_ERROR_TYPE_ITEM, item,
1573 "multiple L3 layers not supported");
1574 else if (item_flags & l4m)
1575 return rte_flow_error_set(error, EINVAL,
1576 RTE_FLOW_ERROR_TYPE_ITEM, item,
1577 "L3 cannot follow an L4 layer.");
1578 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1579 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1580 return rte_flow_error_set(error, EINVAL,
1581 RTE_FLOW_ERROR_TYPE_ITEM, item,
1582 "L3 cannot follow an NVGRE layer.");
1584 mask = &rte_flow_item_ipv4_mask;
1585 else if (mask->hdr.next_proto_id != 0 &&
1586 mask->hdr.next_proto_id != 0xff)
1587 return rte_flow_error_set(error, EINVAL,
1588 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1589 "partial mask is not supported"
1591 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1592 acc_mask ? (const uint8_t *)acc_mask
1593 : (const uint8_t *)&nic_mask,
1594 sizeof(struct rte_flow_item_ipv4),
1602 * Validate IPV6 item.
1605 * Item specification.
1606 * @param[in] item_flags
1607 * Bit-fields that holds the items detected until now.
1608 * @param[in] acc_mask
1609 * Acceptable mask, if NULL default internal default mask
1610 * will be used to check whether item fields are supported.
1612 * Pointer to error structure.
1615 * 0 on success, a negative errno value otherwise and rte_errno is set.
1618 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
1619 uint64_t item_flags,
1621 uint16_t ether_type,
1622 const struct rte_flow_item_ipv6 *acc_mask,
1623 struct rte_flow_error *error)
1625 const struct rte_flow_item_ipv6 *mask = item->mask;
1626 const struct rte_flow_item_ipv6 *spec = item->spec;
1627 const struct rte_flow_item_ipv6 nic_mask = {
1630 "\xff\xff\xff\xff\xff\xff\xff\xff"
1631 "\xff\xff\xff\xff\xff\xff\xff\xff",
1633 "\xff\xff\xff\xff\xff\xff\xff\xff"
1634 "\xff\xff\xff\xff\xff\xff\xff\xff",
1635 .vtc_flow = RTE_BE32(0xffffffff),
1640 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1641 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1642 MLX5_FLOW_LAYER_OUTER_L3;
1643 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1644 MLX5_FLOW_LAYER_OUTER_L4;
1646 uint8_t next_proto = 0xFF;
1647 const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 |
1648 MLX5_FLOW_LAYER_OUTER_VLAN |
1649 MLX5_FLOW_LAYER_INNER_VLAN);
1651 if ((last_item & l2_vlan) && ether_type &&
1652 ether_type != RTE_ETHER_TYPE_IPV6)
1653 return rte_flow_error_set(error, EINVAL,
1654 RTE_FLOW_ERROR_TYPE_ITEM, item,
1655 "IPv6 cannot follow L2/VLAN layer "
1656 "which ether type is not IPv6");
1657 if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) {
1659 next_proto = mask->hdr.proto & spec->hdr.proto;
1660 if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
1661 return rte_flow_error_set(error, EINVAL,
1662 RTE_FLOW_ERROR_TYPE_ITEM,
1667 if (item_flags & MLX5_FLOW_LAYER_IPIP)
1668 return rte_flow_error_set(error, EINVAL,
1669 RTE_FLOW_ERROR_TYPE_ITEM, item,
1670 "wrong tunnel type - IPv4 specified "
1671 "but IPv6 item provided");
1672 if (item_flags & l3m)
1673 return rte_flow_error_set(error, ENOTSUP,
1674 RTE_FLOW_ERROR_TYPE_ITEM, item,
1675 "multiple L3 layers not supported");
1676 else if (item_flags & l4m)
1677 return rte_flow_error_set(error, EINVAL,
1678 RTE_FLOW_ERROR_TYPE_ITEM, item,
1679 "L3 cannot follow an L4 layer.");
1680 else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) &&
1681 !(item_flags & MLX5_FLOW_LAYER_INNER_L2))
1682 return rte_flow_error_set(error, EINVAL,
1683 RTE_FLOW_ERROR_TYPE_ITEM, item,
1684 "L3 cannot follow an NVGRE layer.");
1686 mask = &rte_flow_item_ipv6_mask;
1687 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1688 acc_mask ? (const uint8_t *)acc_mask
1689 : (const uint8_t *)&nic_mask,
1690 sizeof(struct rte_flow_item_ipv6),
1698 * Validate UDP item.
1701 * Item specification.
1702 * @param[in] item_flags
1703 * Bit-fields that holds the items detected until now.
1704 * @param[in] target_protocol
1705 * The next protocol in the previous item.
1706 * @param[in] flow_mask
1707 * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask.
1709 * Pointer to error structure.
1712 * 0 on success, a negative errno value otherwise and rte_errno is set.
1715 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
1716 uint64_t item_flags,
1717 uint8_t target_protocol,
1718 struct rte_flow_error *error)
1720 const struct rte_flow_item_udp *mask = item->mask;
1721 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1722 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1723 MLX5_FLOW_LAYER_OUTER_L3;
1724 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1725 MLX5_FLOW_LAYER_OUTER_L4;
1728 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
1729 return rte_flow_error_set(error, EINVAL,
1730 RTE_FLOW_ERROR_TYPE_ITEM, item,
1731 "protocol filtering not compatible"
1733 if (!(item_flags & l3m))
1734 return rte_flow_error_set(error, EINVAL,
1735 RTE_FLOW_ERROR_TYPE_ITEM, item,
1736 "L3 is mandatory to filter on L4");
1737 if (item_flags & l4m)
1738 return rte_flow_error_set(error, EINVAL,
1739 RTE_FLOW_ERROR_TYPE_ITEM, item,
1740 "multiple L4 layers not supported");
1742 mask = &rte_flow_item_udp_mask;
1743 ret = mlx5_flow_item_acceptable
1744 (item, (const uint8_t *)mask,
1745 (const uint8_t *)&rte_flow_item_udp_mask,
1746 sizeof(struct rte_flow_item_udp), error);
1753 * Validate TCP item.
1756 * Item specification.
1757 * @param[in] item_flags
1758 * Bit-fields that holds the items detected until now.
1759 * @param[in] target_protocol
1760 * The next protocol in the previous item.
1762 * Pointer to error structure.
1765 * 0 on success, a negative errno value otherwise and rte_errno is set.
1768 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
1769 uint64_t item_flags,
1770 uint8_t target_protocol,
1771 const struct rte_flow_item_tcp *flow_mask,
1772 struct rte_flow_error *error)
1774 const struct rte_flow_item_tcp *mask = item->mask;
1775 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1776 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1777 MLX5_FLOW_LAYER_OUTER_L3;
1778 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1779 MLX5_FLOW_LAYER_OUTER_L4;
1783 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
1784 return rte_flow_error_set(error, EINVAL,
1785 RTE_FLOW_ERROR_TYPE_ITEM, item,
1786 "protocol filtering not compatible"
1788 if (!(item_flags & l3m))
1789 return rte_flow_error_set(error, EINVAL,
1790 RTE_FLOW_ERROR_TYPE_ITEM, item,
1791 "L3 is mandatory to filter on L4");
1792 if (item_flags & l4m)
1793 return rte_flow_error_set(error, EINVAL,
1794 RTE_FLOW_ERROR_TYPE_ITEM, item,
1795 "multiple L4 layers not supported");
1797 mask = &rte_flow_item_tcp_mask;
1798 ret = mlx5_flow_item_acceptable
1799 (item, (const uint8_t *)mask,
1800 (const uint8_t *)flow_mask,
1801 sizeof(struct rte_flow_item_tcp), error);
1808 * Validate VXLAN item.
1811 * Item specification.
1812 * @param[in] item_flags
1813 * Bit-fields that holds the items detected until now.
1814 * @param[in] target_protocol
1815 * The next protocol in the previous item.
1817 * Pointer to error structure.
1820 * 0 on success, a negative errno value otherwise and rte_errno is set.
1823 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
1824 uint64_t item_flags,
1825 struct rte_flow_error *error)
1827 const struct rte_flow_item_vxlan *spec = item->spec;
1828 const struct rte_flow_item_vxlan *mask = item->mask;
1833 } id = { .vlan_id = 0, };
1834 uint32_t vlan_id = 0;
1837 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1838 return rte_flow_error_set(error, ENOTSUP,
1839 RTE_FLOW_ERROR_TYPE_ITEM, item,
1840 "multiple tunnel layers not"
1843 * Verify only UDPv4 is present as defined in
1844 * https://tools.ietf.org/html/rfc7348
1846 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1847 return rte_flow_error_set(error, EINVAL,
1848 RTE_FLOW_ERROR_TYPE_ITEM, item,
1849 "no outer UDP layer found");
1851 mask = &rte_flow_item_vxlan_mask;
1852 ret = mlx5_flow_item_acceptable
1853 (item, (const uint8_t *)mask,
1854 (const uint8_t *)&rte_flow_item_vxlan_mask,
1855 sizeof(struct rte_flow_item_vxlan),
1860 memcpy(&id.vni[1], spec->vni, 3);
1861 vlan_id = id.vlan_id;
1862 memcpy(&id.vni[1], mask->vni, 3);
1863 vlan_id &= id.vlan_id;
1866 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if
1867 * only this layer is defined in the Verbs specification it is
1868 * interpreted as wildcard and all packets will match this
1869 * rule, if it follows a full stack layer (ex: eth / ipv4 /
1870 * udp), all packets matching the layers before will also
1871 * match this rule. To avoid such situation, VNI 0 is
1872 * currently refused.
1875 return rte_flow_error_set(error, ENOTSUP,
1876 RTE_FLOW_ERROR_TYPE_ITEM, item,
1877 "VXLAN vni cannot be 0");
1878 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1879 return rte_flow_error_set(error, ENOTSUP,
1880 RTE_FLOW_ERROR_TYPE_ITEM, item,
1881 "VXLAN tunnel must be fully defined");
1886 * Validate VXLAN_GPE item.
1889 * Item specification.
1890 * @param[in] item_flags
1891 * Bit-fields that holds the items detected until now.
1893 * Pointer to the private data structure.
1894 * @param[in] target_protocol
1895 * The next protocol in the previous item.
1897 * Pointer to error structure.
1900 * 0 on success, a negative errno value otherwise and rte_errno is set.
1903 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1904 uint64_t item_flags,
1905 struct rte_eth_dev *dev,
1906 struct rte_flow_error *error)
1908 struct mlx5_priv *priv = dev->data->dev_private;
1909 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1910 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1915 } id = { .vlan_id = 0, };
1916 uint32_t vlan_id = 0;
1918 if (!priv->config.l3_vxlan_en)
1919 return rte_flow_error_set(error, ENOTSUP,
1920 RTE_FLOW_ERROR_TYPE_ITEM, item,
1921 "L3 VXLAN is not enabled by device"
1922 " parameter and/or not configured in"
1924 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1925 return rte_flow_error_set(error, ENOTSUP,
1926 RTE_FLOW_ERROR_TYPE_ITEM, item,
1927 "multiple tunnel layers not"
1930 * Verify only UDPv4 is present as defined in
1931 * https://tools.ietf.org/html/rfc7348
1933 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1934 return rte_flow_error_set(error, EINVAL,
1935 RTE_FLOW_ERROR_TYPE_ITEM, item,
1936 "no outer UDP layer found");
1938 mask = &rte_flow_item_vxlan_gpe_mask;
1939 ret = mlx5_flow_item_acceptable
1940 (item, (const uint8_t *)mask,
1941 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1942 sizeof(struct rte_flow_item_vxlan_gpe),
1948 return rte_flow_error_set(error, ENOTSUP,
1949 RTE_FLOW_ERROR_TYPE_ITEM,
1951 "VxLAN-GPE protocol"
1953 memcpy(&id.vni[1], spec->vni, 3);
1954 vlan_id = id.vlan_id;
1955 memcpy(&id.vni[1], mask->vni, 3);
1956 vlan_id &= id.vlan_id;
1959 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1960 * layer is defined in the Verbs specification it is interpreted as
1961 * wildcard and all packets will match this rule, if it follows a full
1962 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1963 * before will also match this rule. To avoid such situation, VNI 0
1964 * is currently refused.
1967 return rte_flow_error_set(error, ENOTSUP,
1968 RTE_FLOW_ERROR_TYPE_ITEM, item,
1969 "VXLAN-GPE vni cannot be 0");
1970 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1971 return rte_flow_error_set(error, ENOTSUP,
1972 RTE_FLOW_ERROR_TYPE_ITEM, item,
1973 "VXLAN-GPE tunnel must be fully"
1978 * Validate GRE Key item.
1981 * Item specification.
1982 * @param[in] item_flags
1983 * Bit flags to mark detected items.
1984 * @param[in] gre_item
1985 * Pointer to gre_item
1987 * Pointer to error structure.
1990 * 0 on success, a negative errno value otherwise and rte_errno is set.
1993 mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item,
1994 uint64_t item_flags,
1995 const struct rte_flow_item *gre_item,
1996 struct rte_flow_error *error)
1998 const rte_be32_t *mask = item->mask;
2000 rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX);
2001 const struct rte_flow_item_gre *gre_spec = gre_item->spec;
2002 const struct rte_flow_item_gre *gre_mask = gre_item->mask;
2004 if (item_flags & MLX5_FLOW_LAYER_GRE_KEY)
2005 return rte_flow_error_set(error, ENOTSUP,
2006 RTE_FLOW_ERROR_TYPE_ITEM, item,
2007 "Multiple GRE key not support");
2008 if (!(item_flags & MLX5_FLOW_LAYER_GRE))
2009 return rte_flow_error_set(error, ENOTSUP,
2010 RTE_FLOW_ERROR_TYPE_ITEM, item,
2011 "No preceding GRE header");
2012 if (item_flags & MLX5_FLOW_LAYER_INNER)
2013 return rte_flow_error_set(error, ENOTSUP,
2014 RTE_FLOW_ERROR_TYPE_ITEM, item,
2015 "GRE key following a wrong item");
2017 gre_mask = &rte_flow_item_gre_mask;
2018 if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) &&
2019 !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000)))
2020 return rte_flow_error_set(error, EINVAL,
2021 RTE_FLOW_ERROR_TYPE_ITEM, item,
2022 "Key bit must be on");
2025 mask = &gre_key_default_mask;
2026 ret = mlx5_flow_item_acceptable
2027 (item, (const uint8_t *)mask,
2028 (const uint8_t *)&gre_key_default_mask,
2029 sizeof(rte_be32_t), error);
2034 * Validate GRE item.
2037 * Item specification.
2038 * @param[in] item_flags
2039 * Bit flags to mark detected items.
2040 * @param[in] target_protocol
2041 * The next protocol in the previous item.
2043 * Pointer to error structure.
2046 * 0 on success, a negative errno value otherwise and rte_errno is set.
2049 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
2050 uint64_t item_flags,
2051 uint8_t target_protocol,
2052 struct rte_flow_error *error)
2054 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
2055 const struct rte_flow_item_gre *mask = item->mask;
2057 const struct rte_flow_item_gre nic_mask = {
2058 .c_rsvd0_ver = RTE_BE16(0xB000),
2059 .protocol = RTE_BE16(UINT16_MAX),
2062 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2063 return rte_flow_error_set(error, EINVAL,
2064 RTE_FLOW_ERROR_TYPE_ITEM, item,
2065 "protocol filtering not compatible"
2066 " with this GRE layer");
2067 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2068 return rte_flow_error_set(error, ENOTSUP,
2069 RTE_FLOW_ERROR_TYPE_ITEM, item,
2070 "multiple tunnel layers not"
2072 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2073 return rte_flow_error_set(error, ENOTSUP,
2074 RTE_FLOW_ERROR_TYPE_ITEM, item,
2075 "L3 Layer is missing");
2077 mask = &rte_flow_item_gre_mask;
2078 ret = mlx5_flow_item_acceptable
2079 (item, (const uint8_t *)mask,
2080 (const uint8_t *)&nic_mask,
2081 sizeof(struct rte_flow_item_gre), error);
2084 #ifndef HAVE_MLX5DV_DR
2085 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
2086 if (spec && (spec->protocol & mask->protocol))
2087 return rte_flow_error_set(error, ENOTSUP,
2088 RTE_FLOW_ERROR_TYPE_ITEM, item,
2089 "without MPLS support the"
2090 " specification cannot be used for"
2098 * Validate Geneve item.
2101 * Item specification.
2102 * @param[in] itemFlags
2103 * Bit-fields that holds the items detected until now.
2105 * Pointer to the private data structure.
2107 * Pointer to error structure.
2110 * 0 on success, a negative errno value otherwise and rte_errno is set.
2114 mlx5_flow_validate_item_geneve(const struct rte_flow_item *item,
2115 uint64_t item_flags,
2116 struct rte_eth_dev *dev,
2117 struct rte_flow_error *error)
2119 struct mlx5_priv *priv = dev->data->dev_private;
2120 const struct rte_flow_item_geneve *spec = item->spec;
2121 const struct rte_flow_item_geneve *mask = item->mask;
2124 uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ?
2125 MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0;
2126 const struct rte_flow_item_geneve nic_mask = {
2127 .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80),
2128 .vni = "\xff\xff\xff",
2129 .protocol = RTE_BE16(UINT16_MAX),
2132 if (!(priv->config.hca_attr.flex_parser_protocols &
2133 MLX5_HCA_FLEX_GENEVE_ENABLED) ||
2134 !priv->config.hca_attr.tunnel_stateless_geneve_rx)
2135 return rte_flow_error_set(error, ENOTSUP,
2136 RTE_FLOW_ERROR_TYPE_ITEM, item,
2137 "L3 Geneve is not enabled by device"
2138 " parameter and/or not configured in"
2140 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2141 return rte_flow_error_set(error, ENOTSUP,
2142 RTE_FLOW_ERROR_TYPE_ITEM, item,
2143 "multiple tunnel layers not"
2146 * Verify only UDPv4 is present as defined in
2147 * https://tools.ietf.org/html/rfc7348
2149 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
2150 return rte_flow_error_set(error, EINVAL,
2151 RTE_FLOW_ERROR_TYPE_ITEM, item,
2152 "no outer UDP layer found");
2154 mask = &rte_flow_item_geneve_mask;
2155 ret = mlx5_flow_item_acceptable
2156 (item, (const uint8_t *)mask,
2157 (const uint8_t *)&nic_mask,
2158 sizeof(struct rte_flow_item_geneve), error);
2162 gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0);
2163 if (MLX5_GENEVE_VER_VAL(gbhdr) ||
2164 MLX5_GENEVE_CRITO_VAL(gbhdr) ||
2165 MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1)
2166 return rte_flow_error_set(error, ENOTSUP,
2167 RTE_FLOW_ERROR_TYPE_ITEM,
2169 "Geneve protocol unsupported"
2170 " fields are being used");
2171 if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len)
2172 return rte_flow_error_set
2174 RTE_FLOW_ERROR_TYPE_ITEM,
2176 "Unsupported Geneve options length");
2178 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
2179 return rte_flow_error_set
2181 RTE_FLOW_ERROR_TYPE_ITEM, item,
2182 "Geneve tunnel must be fully defined");
2187 * Validate MPLS item.
2190 * Pointer to the rte_eth_dev structure.
2192 * Item specification.
2193 * @param[in] item_flags
2194 * Bit-fields that holds the items detected until now.
2195 * @param[in] prev_layer
2196 * The protocol layer indicated in previous item.
2198 * Pointer to error structure.
2201 * 0 on success, a negative errno value otherwise and rte_errno is set.
2204 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
2205 const struct rte_flow_item *item __rte_unused,
2206 uint64_t item_flags __rte_unused,
2207 uint64_t prev_layer __rte_unused,
2208 struct rte_flow_error *error)
2210 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
2211 const struct rte_flow_item_mpls *mask = item->mask;
2212 struct mlx5_priv *priv = dev->data->dev_private;
2215 if (!priv->config.mpls_en)
2216 return rte_flow_error_set(error, ENOTSUP,
2217 RTE_FLOW_ERROR_TYPE_ITEM, item,
2218 "MPLS not supported or"
2219 " disabled in firmware"
2221 /* MPLS over IP, UDP, GRE is allowed */
2222 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
2223 MLX5_FLOW_LAYER_OUTER_L4_UDP |
2224 MLX5_FLOW_LAYER_GRE)))
2225 return rte_flow_error_set(error, EINVAL,
2226 RTE_FLOW_ERROR_TYPE_ITEM, item,
2227 "protocol filtering not compatible"
2228 " with MPLS layer");
2229 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
2230 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
2231 !(item_flags & MLX5_FLOW_LAYER_GRE))
2232 return rte_flow_error_set(error, ENOTSUP,
2233 RTE_FLOW_ERROR_TYPE_ITEM, item,
2234 "multiple tunnel layers not"
2237 mask = &rte_flow_item_mpls_mask;
2238 ret = mlx5_flow_item_acceptable
2239 (item, (const uint8_t *)mask,
2240 (const uint8_t *)&rte_flow_item_mpls_mask,
2241 sizeof(struct rte_flow_item_mpls), error);
2246 return rte_flow_error_set(error, ENOTSUP,
2247 RTE_FLOW_ERROR_TYPE_ITEM, item,
2248 "MPLS is not supported by Verbs, please"
2253 * Validate NVGRE item.
2256 * Item specification.
2257 * @param[in] item_flags
2258 * Bit flags to mark detected items.
2259 * @param[in] target_protocol
2260 * The next protocol in the previous item.
2262 * Pointer to error structure.
2265 * 0 on success, a negative errno value otherwise and rte_errno is set.
2268 mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item,
2269 uint64_t item_flags,
2270 uint8_t target_protocol,
2271 struct rte_flow_error *error)
2273 const struct rte_flow_item_nvgre *mask = item->mask;
2276 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
2277 return rte_flow_error_set(error, EINVAL,
2278 RTE_FLOW_ERROR_TYPE_ITEM, item,
2279 "protocol filtering not compatible"
2280 " with this GRE layer");
2281 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
2282 return rte_flow_error_set(error, ENOTSUP,
2283 RTE_FLOW_ERROR_TYPE_ITEM, item,
2284 "multiple tunnel layers not"
2286 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
2287 return rte_flow_error_set(error, ENOTSUP,
2288 RTE_FLOW_ERROR_TYPE_ITEM, item,
2289 "L3 Layer is missing");
2291 mask = &rte_flow_item_nvgre_mask;
2292 ret = mlx5_flow_item_acceptable
2293 (item, (const uint8_t *)mask,
2294 (const uint8_t *)&rte_flow_item_nvgre_mask,
2295 sizeof(struct rte_flow_item_nvgre), error);
2301 /* Allocate unique ID for the split Q/RSS subflows. */
2303 flow_qrss_get_id(struct rte_eth_dev *dev)
2305 struct mlx5_priv *priv = dev->data->dev_private;
2306 uint32_t qrss_id, ret;
2308 ret = mlx5_flow_id_get(priv->qrss_id_pool, &qrss_id);
2315 /* Free unique ID for the split Q/RSS subflows. */
2317 flow_qrss_free_id(struct rte_eth_dev *dev, uint32_t qrss_id)
2319 struct mlx5_priv *priv = dev->data->dev_private;
2322 mlx5_flow_id_release(priv->qrss_id_pool, qrss_id);
2326 * Release resource related QUEUE/RSS action split.
2329 * Pointer to Ethernet device.
2331 * Flow to release id's from.
2334 flow_mreg_split_qrss_release(struct rte_eth_dev *dev,
2335 struct rte_flow *flow)
2337 struct mlx5_flow *dev_flow;
2339 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
2340 if (dev_flow->qrss_id)
2341 flow_qrss_free_id(dev, dev_flow->qrss_id);
2345 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
2346 const struct rte_flow_attr *attr __rte_unused,
2347 const struct rte_flow_item items[] __rte_unused,
2348 const struct rte_flow_action actions[] __rte_unused,
2349 bool external __rte_unused,
2350 struct rte_flow_error *error)
2352 return rte_flow_error_set(error, ENOTSUP,
2353 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2356 static struct mlx5_flow *
2357 flow_null_prepare(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 rte_flow_error_set(error, ENOTSUP,
2363 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2368 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
2369 struct mlx5_flow *dev_flow __rte_unused,
2370 const struct rte_flow_attr *attr __rte_unused,
2371 const struct rte_flow_item items[] __rte_unused,
2372 const struct rte_flow_action actions[] __rte_unused,
2373 struct rte_flow_error *error)
2375 return rte_flow_error_set(error, ENOTSUP,
2376 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2380 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
2381 struct rte_flow *flow __rte_unused,
2382 struct rte_flow_error *error)
2384 return rte_flow_error_set(error, ENOTSUP,
2385 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2389 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
2390 struct rte_flow *flow __rte_unused)
2395 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
2396 struct rte_flow *flow __rte_unused)
2401 flow_null_query(struct rte_eth_dev *dev __rte_unused,
2402 struct rte_flow *flow __rte_unused,
2403 const struct rte_flow_action *actions __rte_unused,
2404 void *data __rte_unused,
2405 struct rte_flow_error *error)
2407 return rte_flow_error_set(error, ENOTSUP,
2408 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL);
2411 /* Void driver to protect from null pointer reference. */
2412 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
2413 .validate = flow_null_validate,
2414 .prepare = flow_null_prepare,
2415 .translate = flow_null_translate,
2416 .apply = flow_null_apply,
2417 .remove = flow_null_remove,
2418 .destroy = flow_null_destroy,
2419 .query = flow_null_query,
2423 * Select flow driver type according to flow attributes and device
2427 * Pointer to the dev structure.
2429 * Pointer to the flow attributes.
2432 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
2434 static enum mlx5_flow_drv_type
2435 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
2437 struct mlx5_priv *priv = dev->data->dev_private;
2438 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
2440 if (attr->transfer && priv->config.dv_esw_en)
2441 type = MLX5_FLOW_TYPE_DV;
2442 if (!attr->transfer)
2443 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
2444 MLX5_FLOW_TYPE_VERBS;
2448 #define flow_get_drv_ops(type) flow_drv_ops[type]
2451 * Flow driver validation API. This abstracts calling driver specific functions.
2452 * The type of flow driver is determined according to flow attributes.
2455 * Pointer to the dev structure.
2457 * Pointer to the flow attributes.
2459 * Pointer to the list of items.
2460 * @param[in] actions
2461 * Pointer to the list of actions.
2462 * @param[in] external
2463 * This flow rule is created by request external to PMD.
2465 * Pointer to the error structure.
2468 * 0 on success, a negative errno value otherwise and rte_errno is set.
2471 flow_drv_validate(struct rte_eth_dev *dev,
2472 const struct rte_flow_attr *attr,
2473 const struct rte_flow_item items[],
2474 const struct rte_flow_action actions[],
2475 bool external, struct rte_flow_error *error)
2477 const struct mlx5_flow_driver_ops *fops;
2478 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
2480 fops = flow_get_drv_ops(type);
2481 return fops->validate(dev, attr, items, actions, external, error);
2485 * Flow driver preparation API. This abstracts calling driver specific
2486 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2487 * calculates the size of memory required for device flow, allocates the memory,
2488 * initializes the device flow and returns the pointer.
2491 * This function initializes device flow structure such as dv or verbs in
2492 * struct mlx5_flow. However, it is caller's responsibility to initialize the
2493 * rest. For example, adding returning device flow to flow->dev_flow list and
2494 * setting backward reference to the flow should be done out of this function.
2495 * layers field is not filled either.
2498 * Pointer to the flow attributes.
2500 * Pointer to the list of items.
2501 * @param[in] actions
2502 * Pointer to the list of actions.
2504 * Pointer to the error structure.
2507 * Pointer to device flow on success, otherwise NULL and rte_errno is set.
2509 static inline struct mlx5_flow *
2510 flow_drv_prepare(const struct rte_flow *flow,
2511 const struct rte_flow_attr *attr,
2512 const struct rte_flow_item items[],
2513 const struct rte_flow_action actions[],
2514 struct rte_flow_error *error)
2516 const struct mlx5_flow_driver_ops *fops;
2517 enum mlx5_flow_drv_type type = flow->drv_type;
2519 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2520 fops = flow_get_drv_ops(type);
2521 return fops->prepare(attr, items, actions, error);
2525 * Flow driver translation API. This abstracts calling driver specific
2526 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
2527 * translates a generic flow into a driver flow. flow_drv_prepare() must
2531 * dev_flow->layers could be filled as a result of parsing during translation
2532 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
2533 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
2534 * flow->actions could be overwritten even though all the expanded dev_flows
2535 * have the same actions.
2538 * Pointer to the rte dev structure.
2539 * @param[in, out] dev_flow
2540 * Pointer to the mlx5 flow.
2542 * Pointer to the flow attributes.
2544 * Pointer to the list of items.
2545 * @param[in] actions
2546 * Pointer to the list of actions.
2548 * Pointer to the error structure.
2551 * 0 on success, a negative errno value otherwise and rte_errno is set.
2554 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
2555 const struct rte_flow_attr *attr,
2556 const struct rte_flow_item items[],
2557 const struct rte_flow_action actions[],
2558 struct rte_flow_error *error)
2560 const struct mlx5_flow_driver_ops *fops;
2561 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
2563 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2564 fops = flow_get_drv_ops(type);
2565 return fops->translate(dev, dev_flow, attr, items, actions, error);
2569 * Flow driver apply API. This abstracts calling driver specific functions.
2570 * Parent flow (rte_flow) should have driver type (drv_type). It applies
2571 * translated driver flows on to device. flow_drv_translate() must precede.
2574 * Pointer to Ethernet device structure.
2575 * @param[in, out] flow
2576 * Pointer to flow structure.
2578 * Pointer to error structure.
2581 * 0 on success, a negative errno value otherwise and rte_errno is set.
2584 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
2585 struct rte_flow_error *error)
2587 const struct mlx5_flow_driver_ops *fops;
2588 enum mlx5_flow_drv_type type = flow->drv_type;
2590 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2591 fops = flow_get_drv_ops(type);
2592 return fops->apply(dev, flow, error);
2596 * Flow driver remove API. This abstracts calling driver specific functions.
2597 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2598 * on device. All the resources of the flow should be freed by calling
2599 * flow_drv_destroy().
2602 * Pointer to Ethernet device.
2603 * @param[in, out] flow
2604 * Pointer to flow structure.
2607 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
2609 const struct mlx5_flow_driver_ops *fops;
2610 enum mlx5_flow_drv_type type = flow->drv_type;
2612 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2613 fops = flow_get_drv_ops(type);
2614 fops->remove(dev, flow);
2618 * Flow driver destroy API. This abstracts calling driver specific functions.
2619 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
2620 * on device and releases resources of the flow.
2623 * Pointer to Ethernet device.
2624 * @param[in, out] flow
2625 * Pointer to flow structure.
2628 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
2630 const struct mlx5_flow_driver_ops *fops;
2631 enum mlx5_flow_drv_type type = flow->drv_type;
2633 flow_mreg_split_qrss_release(dev, flow);
2634 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
2635 fops = flow_get_drv_ops(type);
2636 fops->destroy(dev, flow);
2640 * Validate a flow supported by the NIC.
2642 * @see rte_flow_validate()
2646 mlx5_flow_validate(struct rte_eth_dev *dev,
2647 const struct rte_flow_attr *attr,
2648 const struct rte_flow_item items[],
2649 const struct rte_flow_action actions[],
2650 struct rte_flow_error *error)
2654 ret = flow_drv_validate(dev, attr, items, actions, true, error);
2661 * Get port id item from the item list.
2664 * Pointer to the list of items.
2667 * Pointer to the port id item if exist, else return NULL.
2669 static const struct rte_flow_item *
2670 find_port_id_item(const struct rte_flow_item *item)
2673 for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2674 if (item->type == RTE_FLOW_ITEM_TYPE_PORT_ID)
2681 * Get RSS action from the action list.
2683 * @param[in] actions
2684 * Pointer to the list of actions.
2687 * Pointer to the RSS action if exist, else return NULL.
2689 static const struct rte_flow_action_rss*
2690 flow_get_rss_action(const struct rte_flow_action actions[])
2692 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2693 switch (actions->type) {
2694 case RTE_FLOW_ACTION_TYPE_RSS:
2695 return (const struct rte_flow_action_rss *)
2705 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2707 const struct rte_flow_item *item;
2708 unsigned int has_vlan = 0;
2710 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2711 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2717 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2718 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2719 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2720 MLX5_EXPANSION_ROOT_OUTER;
2724 * Get QUEUE/RSS action from the action list.
2726 * @param[in] actions
2727 * Pointer to the list of actions.
2729 * Pointer to the return pointer.
2730 * @param[out] qrss_type
2731 * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned
2732 * if no QUEUE/RSS is found.
2735 * Total number of actions.
2738 flow_parse_qrss_action(const struct rte_flow_action actions[],
2739 const struct rte_flow_action **qrss)
2743 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2744 switch (actions->type) {
2745 case RTE_FLOW_ACTION_TYPE_QUEUE:
2746 case RTE_FLOW_ACTION_TYPE_RSS:
2754 /* Count RTE_FLOW_ACTION_TYPE_END. */
2755 return actions_n + 1;
2759 * Check meter action from the action list.
2761 * @param[in] actions
2762 * Pointer to the list of actions.
2764 * Pointer to the meter exist flag.
2767 * Total number of actions.
2770 flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr)
2776 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2777 switch (actions->type) {
2778 case RTE_FLOW_ACTION_TYPE_METER:
2786 /* Count RTE_FLOW_ACTION_TYPE_END. */
2787 return actions_n + 1;
2791 * Check if the flow should be splited due to hairpin.
2792 * The reason for the split is that in current HW we can't
2793 * support encap on Rx, so if a flow have encap we move it
2797 * Pointer to Ethernet device.
2799 * Flow rule attributes.
2800 * @param[in] actions
2801 * Associated actions (list terminated by the END action).
2804 * > 0 the number of actions and the flow should be split,
2805 * 0 when no split required.
2808 flow_check_hairpin_split(struct rte_eth_dev *dev,
2809 const struct rte_flow_attr *attr,
2810 const struct rte_flow_action actions[])
2812 int queue_action = 0;
2815 const struct rte_flow_action_queue *queue;
2816 const struct rte_flow_action_rss *rss;
2817 const struct rte_flow_action_raw_encap *raw_encap;
2821 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2822 switch (actions->type) {
2823 case RTE_FLOW_ACTION_TYPE_QUEUE:
2824 queue = actions->conf;
2827 if (mlx5_rxq_get_type(dev, queue->index) !=
2828 MLX5_RXQ_TYPE_HAIRPIN)
2833 case RTE_FLOW_ACTION_TYPE_RSS:
2834 rss = actions->conf;
2835 if (rss == NULL || rss->queue_num == 0)
2837 if (mlx5_rxq_get_type(dev, rss->queue[0]) !=
2838 MLX5_RXQ_TYPE_HAIRPIN)
2843 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
2844 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
2848 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
2849 raw_encap = actions->conf;
2850 if (raw_encap->size >
2851 (sizeof(struct rte_flow_item_eth) +
2852 sizeof(struct rte_flow_item_ipv4)))
2861 if (encap == 1 && queue_action)
2866 /* Declare flow create/destroy prototype in advance. */
2867 static struct rte_flow *
2868 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2869 const struct rte_flow_attr *attr,
2870 const struct rte_flow_item items[],
2871 const struct rte_flow_action actions[],
2872 bool external, struct rte_flow_error *error);
2875 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2876 struct rte_flow *flow);
2879 * Add a flow of copying flow metadata registers in RX_CP_TBL.
2881 * As mark_id is unique, if there's already a registered flow for the mark_id,
2882 * return by increasing the reference counter of the resource. Otherwise, create
2883 * the resource (mcp_res) and flow.
2886 * - If ingress port is ANY and reg_c[1] is mark_id,
2887 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
2889 * For default flow (zero mark_id), flow is like,
2890 * - If ingress port is ANY,
2891 * reg_b := reg_c[0] and jump to RX_ACT_TBL.
2894 * Pointer to Ethernet device.
2896 * ID of MARK action, zero means default flow for META.
2898 * Perform verbose error reporting if not NULL.
2901 * Associated resource on success, NULL otherwise and rte_errno is set.
2903 static struct mlx5_flow_mreg_copy_resource *
2904 flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id,
2905 struct rte_flow_error *error)
2907 struct mlx5_priv *priv = dev->data->dev_private;
2908 struct rte_flow_attr attr = {
2909 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
2912 struct mlx5_rte_flow_item_tag tag_spec = {
2915 struct rte_flow_item items[] = {
2916 [1] = { .type = RTE_FLOW_ITEM_TYPE_END, },
2918 struct rte_flow_action_mark ftag = {
2921 struct mlx5_flow_action_copy_mreg cp_mreg = {
2925 struct rte_flow_action_jump jump = {
2926 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
2928 struct rte_flow_action actions[] = {
2929 [3] = { .type = RTE_FLOW_ACTION_TYPE_END, },
2931 struct mlx5_flow_mreg_copy_resource *mcp_res;
2934 /* Fill the register fileds in the flow. */
2935 ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error);
2939 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
2943 /* Check if already registered. */
2944 assert(priv->mreg_cp_tbl);
2945 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, mark_id);
2947 /* For non-default rule. */
2950 assert(mark_id || mcp_res->refcnt == 1);
2953 /* Provide the full width of FLAG specific value. */
2954 if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT))
2955 tag_spec.data = MLX5_FLOW_MARK_DEFAULT;
2956 /* Build a new flow. */
2958 items[0] = (struct rte_flow_item){
2959 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
2962 items[1] = (struct rte_flow_item){
2963 .type = RTE_FLOW_ITEM_TYPE_END,
2965 actions[0] = (struct rte_flow_action){
2966 .type = MLX5_RTE_FLOW_ACTION_TYPE_MARK,
2969 actions[1] = (struct rte_flow_action){
2970 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
2973 actions[2] = (struct rte_flow_action){
2974 .type = RTE_FLOW_ACTION_TYPE_JUMP,
2977 actions[3] = (struct rte_flow_action){
2978 .type = RTE_FLOW_ACTION_TYPE_END,
2981 /* Default rule, wildcard match. */
2982 attr.priority = MLX5_FLOW_PRIO_RSVD;
2983 items[0] = (struct rte_flow_item){
2984 .type = RTE_FLOW_ITEM_TYPE_END,
2986 actions[0] = (struct rte_flow_action){
2987 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
2990 actions[1] = (struct rte_flow_action){
2991 .type = RTE_FLOW_ACTION_TYPE_JUMP,
2994 actions[2] = (struct rte_flow_action){
2995 .type = RTE_FLOW_ACTION_TYPE_END,
2998 /* Build a new entry. */
2999 mcp_res = rte_zmalloc(__func__, sizeof(*mcp_res), 0);
3005 * The copy Flows are not included in any list. There
3006 * ones are referenced from other Flows and can not
3007 * be applied, removed, deleted in ardbitrary order
3008 * by list traversing.
3010 mcp_res->flow = flow_list_create(dev, NULL, &attr, items,
3011 actions, false, error);
3015 mcp_res->hlist_ent.key = mark_id;
3016 ret = mlx5_hlist_insert(priv->mreg_cp_tbl,
3017 &mcp_res->hlist_ent);
3024 flow_list_destroy(dev, NULL, mcp_res->flow);
3030 * Release flow in RX_CP_TBL.
3033 * Pointer to Ethernet device.
3035 * Parent flow for wich copying is provided.
3038 flow_mreg_del_copy_action(struct rte_eth_dev *dev,
3039 struct rte_flow *flow)
3041 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3042 struct mlx5_priv *priv = dev->data->dev_private;
3044 if (!mcp_res || !priv->mreg_cp_tbl)
3046 if (flow->copy_applied) {
3047 assert(mcp_res->appcnt);
3048 flow->copy_applied = 0;
3050 if (!mcp_res->appcnt)
3051 flow_drv_remove(dev, mcp_res->flow);
3054 * We do not check availability of metadata registers here,
3055 * because copy resources are allocated in this case.
3057 if (--mcp_res->refcnt)
3059 assert(mcp_res->flow);
3060 flow_list_destroy(dev, NULL, mcp_res->flow);
3061 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3063 flow->mreg_copy = NULL;
3067 * Start flow in RX_CP_TBL.
3070 * Pointer to Ethernet device.
3072 * Parent flow for wich copying is provided.
3075 * 0 on success, a negative errno value otherwise and rte_errno is set.
3078 flow_mreg_start_copy_action(struct rte_eth_dev *dev,
3079 struct rte_flow *flow)
3081 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3084 if (!mcp_res || flow->copy_applied)
3086 if (!mcp_res->appcnt) {
3087 ret = flow_drv_apply(dev, mcp_res->flow, NULL);
3092 flow->copy_applied = 1;
3097 * Stop flow in RX_CP_TBL.
3100 * Pointer to Ethernet device.
3102 * Parent flow for wich copying is provided.
3105 flow_mreg_stop_copy_action(struct rte_eth_dev *dev,
3106 struct rte_flow *flow)
3108 struct mlx5_flow_mreg_copy_resource *mcp_res = flow->mreg_copy;
3110 if (!mcp_res || !flow->copy_applied)
3112 assert(mcp_res->appcnt);
3114 flow->copy_applied = 0;
3115 if (!mcp_res->appcnt)
3116 flow_drv_remove(dev, mcp_res->flow);
3120 * Remove the default copy action from RX_CP_TBL.
3123 * Pointer to Ethernet device.
3126 flow_mreg_del_default_copy_action(struct rte_eth_dev *dev)
3128 struct mlx5_flow_mreg_copy_resource *mcp_res;
3129 struct mlx5_priv *priv = dev->data->dev_private;
3131 /* Check if default flow is registered. */
3132 if (!priv->mreg_cp_tbl)
3134 mcp_res = (void *)mlx5_hlist_lookup(priv->mreg_cp_tbl, 0ULL);
3137 assert(mcp_res->flow);
3138 flow_list_destroy(dev, NULL, mcp_res->flow);
3139 mlx5_hlist_remove(priv->mreg_cp_tbl, &mcp_res->hlist_ent);
3144 * Add the default copy action in in RX_CP_TBL.
3147 * Pointer to Ethernet device.
3149 * Perform verbose error reporting if not NULL.
3152 * 0 for success, negative value otherwise and rte_errno is set.
3155 flow_mreg_add_default_copy_action(struct rte_eth_dev *dev,
3156 struct rte_flow_error *error)
3158 struct mlx5_priv *priv = dev->data->dev_private;
3159 struct mlx5_flow_mreg_copy_resource *mcp_res;
3161 /* Check whether extensive metadata feature is engaged. */
3162 if (!priv->config.dv_flow_en ||
3163 priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3164 !mlx5_flow_ext_mreg_supported(dev) ||
3165 !priv->sh->dv_regc0_mask)
3167 mcp_res = flow_mreg_add_copy_action(dev, 0, error);
3174 * Add a flow of copying flow metadata registers in RX_CP_TBL.
3176 * All the flow having Q/RSS action should be split by
3177 * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL
3178 * performs the following,
3179 * - CQE->flow_tag := reg_c[1] (MARK)
3180 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3181 * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1]
3182 * but there should be a flow per each MARK ID set by MARK action.
3184 * For the aforementioned reason, if there's a MARK action in flow's action
3185 * list, a corresponding flow should be added to the RX_CP_TBL in order to copy
3186 * the MARK ID to CQE's flow_tag like,
3187 * - If reg_c[1] is mark_id,
3188 * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3190 * For SET_META action which stores value in reg_c[0], as the destination is
3191 * also a flow metadata register (reg_b), adding a default flow is enough. Zero
3192 * MARK ID means the default flow. The default flow looks like,
3193 * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL.
3196 * Pointer to Ethernet device.
3198 * Pointer to flow structure.
3199 * @param[in] actions
3200 * Pointer to the list of actions.
3202 * Perform verbose error reporting if not NULL.
3205 * 0 on success, negative value otherwise and rte_errno is set.
3208 flow_mreg_update_copy_table(struct rte_eth_dev *dev,
3209 struct rte_flow *flow,
3210 const struct rte_flow_action *actions,
3211 struct rte_flow_error *error)
3213 struct mlx5_priv *priv = dev->data->dev_private;
3214 struct mlx5_dev_config *config = &priv->config;
3215 struct mlx5_flow_mreg_copy_resource *mcp_res;
3216 const struct rte_flow_action_mark *mark;
3218 /* Check whether extensive metadata feature is engaged. */
3219 if (!config->dv_flow_en ||
3220 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3221 !mlx5_flow_ext_mreg_supported(dev) ||
3222 !priv->sh->dv_regc0_mask)
3224 /* Find MARK action. */
3225 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3226 switch (actions->type) {
3227 case RTE_FLOW_ACTION_TYPE_FLAG:
3228 mcp_res = flow_mreg_add_copy_action
3229 (dev, MLX5_FLOW_MARK_DEFAULT, error);
3232 flow->mreg_copy = mcp_res;
3233 if (dev->data->dev_started) {
3235 flow->copy_applied = 1;
3238 case RTE_FLOW_ACTION_TYPE_MARK:
3239 mark = (const struct rte_flow_action_mark *)
3242 flow_mreg_add_copy_action(dev, mark->id, error);
3245 flow->mreg_copy = mcp_res;
3246 if (dev->data->dev_started) {
3248 flow->copy_applied = 1;
3258 #define MLX5_MAX_SPLIT_ACTIONS 24
3259 #define MLX5_MAX_SPLIT_ITEMS 24
3262 * Split the hairpin flow.
3263 * Since HW can't support encap on Rx we move the encap to Tx.
3264 * If the count action is after the encap then we also
3265 * move the count action. in this case the count will also measure
3269 * Pointer to Ethernet device.
3270 * @param[in] actions
3271 * Associated actions (list terminated by the END action).
3272 * @param[out] actions_rx
3274 * @param[out] actions_tx
3276 * @param[out] pattern_tx
3277 * The pattern items for the Tx flow.
3278 * @param[out] flow_id
3279 * The flow ID connected to this flow.
3285 flow_hairpin_split(struct rte_eth_dev *dev,
3286 const struct rte_flow_action actions[],
3287 struct rte_flow_action actions_rx[],
3288 struct rte_flow_action actions_tx[],
3289 struct rte_flow_item pattern_tx[],
3292 struct mlx5_priv *priv = dev->data->dev_private;
3293 const struct rte_flow_action_raw_encap *raw_encap;
3294 const struct rte_flow_action_raw_decap *raw_decap;
3295 struct mlx5_rte_flow_action_set_tag *set_tag;
3296 struct rte_flow_action *tag_action;
3297 struct mlx5_rte_flow_item_tag *tag_item;
3298 struct rte_flow_item *item;
3302 mlx5_flow_id_get(priv->sh->flow_id_pool, flow_id);
3303 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3304 switch (actions->type) {
3305 case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
3306 case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
3307 rte_memcpy(actions_tx, actions,
3308 sizeof(struct rte_flow_action));
3311 case RTE_FLOW_ACTION_TYPE_COUNT:
3313 rte_memcpy(actions_tx, actions,
3314 sizeof(struct rte_flow_action));
3317 rte_memcpy(actions_rx, actions,
3318 sizeof(struct rte_flow_action));
3322 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3323 raw_encap = actions->conf;
3324 if (raw_encap->size >
3325 (sizeof(struct rte_flow_item_eth) +
3326 sizeof(struct rte_flow_item_ipv4))) {
3327 memcpy(actions_tx, actions,
3328 sizeof(struct rte_flow_action));
3332 rte_memcpy(actions_rx, actions,
3333 sizeof(struct rte_flow_action));
3337 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3338 raw_decap = actions->conf;
3339 if (raw_decap->size <
3340 (sizeof(struct rte_flow_item_eth) +
3341 sizeof(struct rte_flow_item_ipv4))) {
3342 memcpy(actions_tx, actions,
3343 sizeof(struct rte_flow_action));
3346 rte_memcpy(actions_rx, actions,
3347 sizeof(struct rte_flow_action));
3352 rte_memcpy(actions_rx, actions,
3353 sizeof(struct rte_flow_action));
3358 /* Add set meta action and end action for the Rx flow. */
3359 tag_action = actions_rx;
3360 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3362 rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action));
3364 set_tag = (void *)actions_rx;
3365 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL);
3366 assert(set_tag->id > REG_NONE);
3367 set_tag->data = *flow_id;
3368 tag_action->conf = set_tag;
3369 /* Create Tx item list. */
3370 rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action));
3371 addr = (void *)&pattern_tx[2];
3373 item->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
3374 tag_item = (void *)addr;
3375 tag_item->data = *flow_id;
3376 tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL);
3377 assert(set_tag->id > REG_NONE);
3378 item->spec = tag_item;
3379 addr += sizeof(struct mlx5_rte_flow_item_tag);
3380 tag_item = (void *)addr;
3381 tag_item->data = UINT32_MAX;
3382 tag_item->id = UINT16_MAX;
3383 item->mask = tag_item;
3384 addr += sizeof(struct mlx5_rte_flow_item_tag);
3387 item->type = RTE_FLOW_ITEM_TYPE_END;
3392 * The last stage of splitting chain, just creates the subflow
3393 * without any modification.
3396 * Pointer to Ethernet device.
3398 * Parent flow structure pointer.
3399 * @param[in, out] sub_flow
3400 * Pointer to return the created subflow, may be NULL.
3402 * Flow rule attributes.
3404 * Pattern specification (list terminated by the END pattern item).
3405 * @param[in] actions
3406 * Associated actions (list terminated by the END action).
3407 * @param[in] external
3408 * This flow rule is created by request external to PMD.
3410 * Perform verbose error reporting if not NULL.
3412 * 0 on success, negative value otherwise
3415 flow_create_split_inner(struct rte_eth_dev *dev,
3416 struct rte_flow *flow,
3417 struct mlx5_flow **sub_flow,
3418 const struct rte_flow_attr *attr,
3419 const struct rte_flow_item items[],
3420 const struct rte_flow_action actions[],
3421 bool external, struct rte_flow_error *error)
3423 struct mlx5_flow *dev_flow;
3425 dev_flow = flow_drv_prepare(flow, attr, items, actions, error);
3428 dev_flow->flow = flow;
3429 dev_flow->external = external;
3430 /* Subflow object was created, we must include one in the list. */
3431 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
3433 *sub_flow = dev_flow;
3434 return flow_drv_translate(dev, dev_flow, attr, items, actions, error);
3438 * Split the meter flow.
3440 * As meter flow will split to three sub flow, other than meter
3441 * action, the other actions make sense to only meter accepts
3442 * the packet. If it need to be dropped, no other additional
3443 * actions should be take.
3445 * One kind of special action which decapsulates the L3 tunnel
3446 * header will be in the prefix sub flow, as not to take the
3447 * L3 tunnel header into account.
3450 * Pointer to Ethernet device.
3451 * @param[in] actions
3452 * Associated actions (list terminated by the END action).
3453 * @param[out] actions_sfx
3454 * Suffix flow actions.
3455 * @param[out] actions_pre
3456 * Prefix flow actions.
3457 * @param[out] pattern_sfx
3458 * The pattern items for the suffix flow.
3459 * @param[out] tag_sfx
3460 * Pointer to suffix flow tag.
3466 flow_meter_split_prep(struct rte_eth_dev *dev,
3467 const struct rte_flow_action actions[],
3468 struct rte_flow_action actions_sfx[],
3469 struct rte_flow_action actions_pre[])
3471 struct rte_flow_action *tag_action;
3472 struct mlx5_rte_flow_action_set_tag *set_tag;
3473 struct rte_flow_error error;
3474 const struct rte_flow_action_raw_encap *raw_encap;
3475 const struct rte_flow_action_raw_decap *raw_decap;
3478 /* Add the extra tag action first. */
3479 tag_action = actions_pre;
3480 tag_action->type = MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3482 /* Prepare the actions for prefix and suffix flow. */
3483 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
3484 switch (actions->type) {
3485 case RTE_FLOW_ACTION_TYPE_METER:
3486 case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
3487 case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
3488 memcpy(actions_pre, actions,
3489 sizeof(struct rte_flow_action));
3492 case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
3493 raw_encap = actions->conf;
3494 if (raw_encap->size >
3495 (sizeof(struct rte_flow_item_eth) +
3496 sizeof(struct rte_flow_item_ipv4))) {
3497 memcpy(actions_sfx, actions,
3498 sizeof(struct rte_flow_action));
3501 rte_memcpy(actions_pre, actions,
3502 sizeof(struct rte_flow_action));
3506 case RTE_FLOW_ACTION_TYPE_RAW_DECAP:
3507 raw_decap = actions->conf;
3508 /* Size 0 decap means 50 bytes as vxlan decap. */
3509 if (raw_decap->size && (raw_decap->size <
3510 (sizeof(struct rte_flow_item_eth) +
3511 sizeof(struct rte_flow_item_ipv4)))) {
3512 memcpy(actions_sfx, actions,
3513 sizeof(struct rte_flow_action));
3516 rte_memcpy(actions_pre, actions,
3517 sizeof(struct rte_flow_action));
3522 memcpy(actions_sfx, actions,
3523 sizeof(struct rte_flow_action));
3528 /* Add end action to the actions. */
3529 actions_sfx->type = RTE_FLOW_ACTION_TYPE_END;
3530 actions_pre->type = RTE_FLOW_ACTION_TYPE_END;
3533 set_tag = (void *)actions_pre;
3534 set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error);
3536 * Get the id from the qrss_pool to make qrss share the id with meter.
3538 tag_id = flow_qrss_get_id(dev);
3539 set_tag->data = rte_cpu_to_be_32(tag_id);
3540 tag_action->conf = set_tag;
3545 * Split action list having QUEUE/RSS for metadata register copy.
3547 * Once Q/RSS action is detected in user's action list, the flow action
3548 * should be split in order to copy metadata registers, which will happen in
3550 * - CQE->flow_tag := reg_c[1] (MARK)
3551 * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META)
3552 * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL.
3553 * This is because the last action of each flow must be a terminal action
3554 * (QUEUE, RSS or DROP).
3556 * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is
3557 * stored and kept in the mlx5_flow structure per each sub_flow.
3559 * The Q/RSS action is replaced with,
3560 * - SET_TAG, setting the allocated flow ID to reg_c[2].
3561 * And the following JUMP action is added at the end,
3562 * - JUMP, to RX_CP_TBL.
3564 * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by
3565 * flow_create_split_metadata() routine. The flow will look like,
3566 * - If flow ID matches (reg_c[2]), perform Q/RSS.
3569 * Pointer to Ethernet device.
3570 * @param[out] split_actions
3571 * Pointer to store split actions to jump to CP_TBL.
3572 * @param[in] actions
3573 * Pointer to the list of original flow actions.
3575 * Pointer to the Q/RSS action.
3576 * @param[in] actions_n
3577 * Number of original actions.
3579 * Perform verbose error reporting if not NULL.
3582 * non-zero unique flow_id on success, otherwise 0 and
3583 * error/rte_error are set.
3586 flow_mreg_split_qrss_prep(struct rte_eth_dev *dev,
3587 struct rte_flow_action *split_actions,
3588 const struct rte_flow_action *actions,
3589 const struct rte_flow_action *qrss,
3590 int actions_n, struct rte_flow_error *error)
3592 struct mlx5_rte_flow_action_set_tag *set_tag;
3593 struct rte_flow_action_jump *jump;
3594 const int qrss_idx = qrss - actions;
3595 uint32_t flow_id = 0;
3599 * Given actions will be split
3600 * - Replace QUEUE/RSS action with SET_TAG to set flow ID.
3601 * - Add jump to mreg CP_TBL.
3602 * As a result, there will be one more action.
3605 memcpy(split_actions, actions, sizeof(*split_actions) * actions_n);
3606 set_tag = (void *)(split_actions + actions_n);
3608 * If tag action is not set to void(it means we are not the meter
3609 * suffix flow), add the tag action. Since meter suffix flow already
3610 * has the tag added.
3612 if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) {
3614 * Allocate the new subflow ID. This one is unique within
3615 * device and not shared with representors. Otherwise,
3616 * we would have to resolve multi-thread access synch
3617 * issue. Each flow on the shared device is appended
3618 * with source vport identifier, so the resulting
3619 * flows will be unique in the shared (by master and
3620 * representors) domain even if they have coinciding
3623 flow_id = flow_qrss_get_id(dev);
3625 return rte_flow_error_set(error, ENOMEM,
3626 RTE_FLOW_ERROR_TYPE_ACTION,
3627 NULL, "can't allocate id "
3628 "for split Q/RSS subflow");
3629 /* Internal SET_TAG action to set flow ID. */
3630 *set_tag = (struct mlx5_rte_flow_action_set_tag){
3633 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error);
3637 /* Construct new actions array. */
3638 /* Replace QUEUE/RSS action. */
3639 split_actions[qrss_idx] = (struct rte_flow_action){
3640 .type = MLX5_RTE_FLOW_ACTION_TYPE_TAG,
3644 /* JUMP action to jump to mreg copy table (CP_TBL). */
3645 jump = (void *)(set_tag + 1);
3646 *jump = (struct rte_flow_action_jump){
3647 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
3649 split_actions[actions_n - 2] = (struct rte_flow_action){
3650 .type = RTE_FLOW_ACTION_TYPE_JUMP,
3653 split_actions[actions_n - 1] = (struct rte_flow_action){
3654 .type = RTE_FLOW_ACTION_TYPE_END,
3660 * Extend the given action list for Tx metadata copy.
3662 * Copy the given action list to the ext_actions and add flow metadata register
3663 * copy action in order to copy reg_a set by WQE to reg_c[0].
3665 * @param[out] ext_actions
3666 * Pointer to the extended action list.
3667 * @param[in] actions
3668 * Pointer to the list of actions.
3669 * @param[in] actions_n
3670 * Number of actions in the list.
3672 * Perform verbose error reporting if not NULL.
3675 * 0 on success, negative value otherwise
3678 flow_mreg_tx_copy_prep(struct rte_eth_dev *dev,
3679 struct rte_flow_action *ext_actions,
3680 const struct rte_flow_action *actions,
3681 int actions_n, struct rte_flow_error *error)
3683 struct mlx5_flow_action_copy_mreg *cp_mreg =
3684 (struct mlx5_flow_action_copy_mreg *)
3685 (ext_actions + actions_n + 1);
3688 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error);
3692 ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error);
3696 memcpy(ext_actions, actions,
3697 sizeof(*ext_actions) * actions_n);
3698 ext_actions[actions_n - 1] = (struct rte_flow_action){
3699 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
3702 ext_actions[actions_n] = (struct rte_flow_action){
3703 .type = RTE_FLOW_ACTION_TYPE_END,
3709 * The splitting for metadata feature.
3711 * - Q/RSS action on NIC Rx should be split in order to pass by
3712 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3713 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3715 * - All the actions on NIC Tx should have a mreg copy action to
3716 * copy reg_a from WQE to reg_c[0].
3719 * Pointer to Ethernet device.
3721 * Parent flow structure pointer.
3723 * Flow rule attributes.
3725 * Pattern specification (list terminated by the END pattern item).
3726 * @param[in] actions
3727 * Associated actions (list terminated by the END action).
3728 * @param[in] external
3729 * This flow rule is created by request external to PMD.
3731 * Perform verbose error reporting if not NULL.
3733 * 0 on success, negative value otherwise
3736 flow_create_split_metadata(struct rte_eth_dev *dev,
3737 struct rte_flow *flow,
3738 const struct rte_flow_attr *attr,
3739 const struct rte_flow_item items[],
3740 const struct rte_flow_action actions[],
3741 bool external, struct rte_flow_error *error)
3743 struct mlx5_priv *priv = dev->data->dev_private;
3744 struct mlx5_dev_config *config = &priv->config;
3745 const struct rte_flow_action *qrss = NULL;
3746 struct rte_flow_action *ext_actions = NULL;
3747 struct mlx5_flow *dev_flow = NULL;
3748 uint32_t qrss_id = 0;
3754 /* Check whether extensive metadata feature is engaged. */
3755 if (!config->dv_flow_en ||
3756 config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
3757 !mlx5_flow_ext_mreg_supported(dev))
3758 return flow_create_split_inner(dev, flow, NULL, attr, items,
3759 actions, external, error);
3760 actions_n = flow_parse_qrss_action(actions, &qrss);
3762 /* Exclude hairpin flows from splitting. */
3763 if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
3764 const struct rte_flow_action_queue *queue;
3767 if (mlx5_rxq_get_type(dev, queue->index) ==
3768 MLX5_RXQ_TYPE_HAIRPIN)
3770 } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) {
3771 const struct rte_flow_action_rss *rss;
3774 if (mlx5_rxq_get_type(dev, rss->queue[0]) ==
3775 MLX5_RXQ_TYPE_HAIRPIN)
3780 /* Check if it is in meter suffix table. */
3781 mtr_sfx = attr->group == (attr->transfer ?
3782 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
3783 MLX5_FLOW_TABLE_LEVEL_SUFFIX);
3785 * Q/RSS action on NIC Rx should be split in order to pass by
3786 * the mreg copy table (RX_CP_TBL) and then it jumps to the
3787 * action table (RX_ACT_TBL) which has the split Q/RSS action.
3789 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3790 sizeof(struct rte_flow_action_set_tag) +
3791 sizeof(struct rte_flow_action_jump);
3792 ext_actions = rte_zmalloc(__func__, act_size, 0);
3794 return rte_flow_error_set(error, ENOMEM,
3795 RTE_FLOW_ERROR_TYPE_ACTION,
3796 NULL, "no memory to split "
3799 * If we are the suffix flow of meter, tag already exist.
3800 * Set the tag action to void.
3803 ext_actions[qrss - actions].type =
3804 RTE_FLOW_ACTION_TYPE_VOID;
3806 ext_actions[qrss - actions].type =
3807 MLX5_RTE_FLOW_ACTION_TYPE_TAG;
3809 * Create the new actions list with removed Q/RSS action
3810 * and appended set tag and jump to register copy table
3811 * (RX_CP_TBL). We should preallocate unique tag ID here
3812 * in advance, because it is needed for set tag action.
3814 qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions,
3815 qrss, actions_n, error);
3816 if (!mtr_sfx && !qrss_id) {
3820 } else if (attr->egress && !attr->transfer) {
3822 * All the actions on NIC Tx should have a metadata register
3823 * copy action to copy reg_a from WQE to reg_c[meta]
3825 act_size = sizeof(struct rte_flow_action) * (actions_n + 1) +
3826 sizeof(struct mlx5_flow_action_copy_mreg);
3827 ext_actions = rte_zmalloc(__func__, act_size, 0);
3829 return rte_flow_error_set(error, ENOMEM,
3830 RTE_FLOW_ERROR_TYPE_ACTION,
3831 NULL, "no memory to split "
3833 /* Create the action list appended with copy register. */
3834 ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions,
3839 /* Add the unmodified original or prefix subflow. */
3840 ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items,
3841 ext_actions ? ext_actions : actions,
3847 const struct rte_flow_attr q_attr = {
3848 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
3851 /* Internal PMD action to set register. */
3852 struct mlx5_rte_flow_item_tag q_tag_spec = {
3856 struct rte_flow_item q_items[] = {
3858 .type = MLX5_RTE_FLOW_ITEM_TYPE_TAG,
3859 .spec = &q_tag_spec,
3864 .type = RTE_FLOW_ITEM_TYPE_END,
3867 struct rte_flow_action q_actions[] = {
3873 .type = RTE_FLOW_ACTION_TYPE_END,
3876 uint64_t hash_fields = dev_flow->hash_fields;
3879 * Configure the tag item only if there is no meter subflow.
3880 * Since tag is already marked in the meter suffix subflow
3881 * we can just use the meter suffix items as is.
3884 /* Not meter subflow. */
3887 * Put unique id in prefix flow due to it is destroyed
3888 * after suffix flow and id will be freed after there
3889 * is no actual flows with this id and identifier
3890 * reallocation becomes possible (for example, for
3891 * other flows in other threads).
3893 dev_flow->qrss_id = qrss_id;
3895 ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0,
3899 q_tag_spec.id = ret;
3902 /* Add suffix subflow to execute Q/RSS. */
3903 ret = flow_create_split_inner(dev, flow, &dev_flow,
3904 &q_attr, mtr_sfx ? items :
3910 dev_flow->hash_fields = hash_fields;
3915 * We do not destroy the partially created sub_flows in case of error.
3916 * These ones are included into parent flow list and will be destroyed
3917 * by flow_drv_destroy.
3919 flow_qrss_free_id(dev, qrss_id);
3920 rte_free(ext_actions);
3925 * The splitting for meter feature.
3927 * - The meter flow will be split to two flows as prefix and
3928 * suffix flow. The packets make sense only it pass the prefix
3931 * - Reg_C_5 is used for the packet to match betweend prefix and
3935 * Pointer to Ethernet device.
3937 * Parent flow structure pointer.
3939 * Flow rule attributes.
3941 * Pattern specification (list terminated by the END pattern item).
3942 * @param[in] actions
3943 * Associated actions (list terminated by the END action).
3944 * @param[in] external
3945 * This flow rule is created by request external to PMD.
3947 * Perform verbose error reporting if not NULL.
3949 * 0 on success, negative value otherwise
3952 flow_create_split_meter(struct rte_eth_dev *dev,
3953 struct rte_flow *flow,
3954 const struct rte_flow_attr *attr,
3955 const struct rte_flow_item items[],
3956 const struct rte_flow_action actions[],
3957 bool external, struct rte_flow_error *error)
3959 struct mlx5_priv *priv = dev->data->dev_private;
3960 struct rte_flow_action *sfx_actions = NULL;
3961 struct rte_flow_action *pre_actions = NULL;
3962 struct rte_flow_item *sfx_items = NULL;
3963 const struct rte_flow_item *sfx_port_id_item;
3964 struct mlx5_flow *dev_flow = NULL;
3965 struct rte_flow_attr sfx_attr = *attr;
3967 uint32_t mtr_tag_id = 0;
3974 actions_n = flow_check_meter_action(actions, &mtr);
3976 struct mlx5_rte_flow_item_tag *tag_spec;
3977 /* The five prefix actions: meter, decap, encap, tag, end. */
3978 act_size = sizeof(struct rte_flow_action) * (actions_n + 5) +
3979 sizeof(struct rte_flow_action_set_tag);
3981 #define METER_SUFFIX_ITEM 3
3982 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM +
3983 sizeof(struct mlx5_rte_flow_item_tag);
3984 sfx_actions = rte_zmalloc(__func__, (act_size + item_size), 0);
3986 return rte_flow_error_set(error, ENOMEM,
3987 RTE_FLOW_ERROR_TYPE_ACTION,
3988 NULL, "no memory to split "
3990 pre_actions = sfx_actions + actions_n;
3991 mtr_tag_id = flow_meter_split_prep(dev, actions, sfx_actions,
3997 /* Add the prefix subflow. */
3998 ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items,
3999 pre_actions, external, error);
4004 dev_flow->mtr_flow_id = mtr_tag_id;
4005 /* Prepare the suffix flow match pattern. */
4006 sfx_items = (struct rte_flow_item *)((char *)sfx_actions +
4008 tag_spec = (struct mlx5_rte_flow_item_tag *)(sfx_items +
4010 tag_spec->data = rte_cpu_to_be_32(dev_flow->mtr_flow_id);
4011 tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0,
4013 sfx_items->type = MLX5_RTE_FLOW_ITEM_TYPE_TAG;
4014 sfx_items->spec = tag_spec;
4015 sfx_items->last = NULL;
4016 sfx_items->mask = NULL;
4018 sfx_port_id_item = find_port_id_item(items);
4019 if (sfx_port_id_item) {
4020 memcpy(sfx_items, sfx_port_id_item,
4021 sizeof(*sfx_items));
4024 sfx_items->type = RTE_FLOW_ITEM_TYPE_END;
4025 sfx_items -= METER_SUFFIX_ITEM;
4026 /* Setting the sfx group atrr. */
4027 sfx_attr.group = sfx_attr.transfer ?
4028 (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) :
4029 MLX5_FLOW_TABLE_LEVEL_SUFFIX;
4031 /* Add the prefix subflow. */
4032 ret = flow_create_split_metadata(dev, flow, &sfx_attr,
4033 sfx_items ? sfx_items : items,
4034 sfx_actions ? sfx_actions : actions,
4038 rte_free(sfx_actions);
4043 * Split the flow to subflow set. The splitters might be linked
4044 * in the chain, like this:
4045 * flow_create_split_outer() calls:
4046 * flow_create_split_meter() calls:
4047 * flow_create_split_metadata(meter_subflow_0) calls:
4048 * flow_create_split_inner(metadata_subflow_0)
4049 * flow_create_split_inner(metadata_subflow_1)
4050 * flow_create_split_inner(metadata_subflow_2)
4051 * flow_create_split_metadata(meter_subflow_1) calls:
4052 * flow_create_split_inner(metadata_subflow_0)
4053 * flow_create_split_inner(metadata_subflow_1)
4054 * flow_create_split_inner(metadata_subflow_2)
4056 * This provide flexible way to add new levels of flow splitting.
4057 * The all of successfully created subflows are included to the
4058 * parent flow dev_flow list.
4061 * Pointer to Ethernet device.
4063 * Parent flow structure pointer.
4065 * Flow rule attributes.
4067 * Pattern specification (list terminated by the END pattern item).
4068 * @param[in] actions
4069 * Associated actions (list terminated by the END action).
4070 * @param[in] external
4071 * This flow rule is created by request external to PMD.
4073 * Perform verbose error reporting if not NULL.
4075 * 0 on success, negative value otherwise
4078 flow_create_split_outer(struct rte_eth_dev *dev,
4079 struct rte_flow *flow,
4080 const struct rte_flow_attr *attr,
4081 const struct rte_flow_item items[],
4082 const struct rte_flow_action actions[],
4083 bool external, struct rte_flow_error *error)
4087 ret = flow_create_split_meter(dev, flow, attr, items,
4088 actions, external, error);
4094 * Create a flow and add it to @p list.
4097 * Pointer to Ethernet device.
4099 * Pointer to a TAILQ flow list. If this parameter NULL,
4100 * no list insertion occurred, flow is just created,
4101 * this is caller's responsibility to track the
4104 * Flow rule attributes.
4106 * Pattern specification (list terminated by the END pattern item).
4107 * @param[in] actions
4108 * Associated actions (list terminated by the END action).
4109 * @param[in] external
4110 * This flow rule is created by request external to PMD.
4112 * Perform verbose error reporting if not NULL.
4115 * A flow on success, NULL otherwise and rte_errno is set.
4117 static struct rte_flow *
4118 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
4119 const struct rte_flow_attr *attr,
4120 const struct rte_flow_item items[],
4121 const struct rte_flow_action actions[],
4122 bool external, struct rte_flow_error *error)
4124 struct mlx5_priv *priv = dev->data->dev_private;
4125 struct rte_flow *flow = NULL;
4126 struct mlx5_flow *dev_flow;
4127 const struct rte_flow_action_rss *rss;
4129 struct rte_flow_expand_rss buf;
4130 uint8_t buffer[2048];
4133 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4134 uint8_t buffer[2048];
4137 struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS];
4138 uint8_t buffer[2048];
4139 } actions_hairpin_tx;
4141 struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS];
4142 uint8_t buffer[2048];
4144 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
4145 const struct rte_flow_action *p_actions_rx = actions;
4149 int hairpin_flow = 0;
4150 uint32_t hairpin_id = 0;
4151 struct rte_flow_attr attr_tx = { .priority = 0 };
4153 hairpin_flow = flow_check_hairpin_split(dev, attr, actions);
4154 if (hairpin_flow > 0) {
4155 if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) {
4159 flow_hairpin_split(dev, actions, actions_rx.actions,
4160 actions_hairpin_tx.actions, items_tx.items,
4162 p_actions_rx = actions_rx.actions;
4164 ret = flow_drv_validate(dev, attr, items, p_actions_rx, external,
4167 goto error_before_flow;
4168 flow_size = sizeof(struct rte_flow);
4169 rss = flow_get_rss_action(p_actions_rx);
4171 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
4174 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
4175 flow = rte_calloc(__func__, 1, flow_size, 0);
4178 goto error_before_flow;
4180 flow->drv_type = flow_get_drv_type(dev, attr);
4181 if (hairpin_id != 0)
4182 flow->hairpin_flow_id = hairpin_id;
4183 assert(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
4184 flow->drv_type < MLX5_FLOW_TYPE_MAX);
4185 flow->rss.queue = (void *)(flow + 1);
4188 * The following information is required by
4189 * mlx5_flow_hashfields_adjust() in advance.
4191 flow->rss.level = rss->level;
4192 /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */
4193 flow->rss.types = !rss->types ? ETH_RSS_IP : rss->types;
4195 LIST_INIT(&flow->dev_flows);
4196 if (rss && rss->types) {
4197 unsigned int graph_root;
4199 graph_root = find_graph_root(items, rss->level);
4200 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
4202 mlx5_support_expansion,
4205 (unsigned int)ret < sizeof(expand_buffer.buffer));
4208 buf->entry[0].pattern = (void *)(uintptr_t)items;
4210 for (i = 0; i < buf->entries; ++i) {
4212 * The splitter may create multiple dev_flows,
4213 * depending on configuration. In the simplest
4214 * case it just creates unmodified original flow.
4216 ret = flow_create_split_outer(dev, flow, attr,
4217 buf->entry[i].pattern,
4218 p_actions_rx, external,
4223 /* Create the tx flow. */
4225 attr_tx.group = MLX5_HAIRPIN_TX_TABLE;
4226 attr_tx.ingress = 0;
4228 dev_flow = flow_drv_prepare(flow, &attr_tx, items_tx.items,
4229 actions_hairpin_tx.actions, error);
4232 dev_flow->flow = flow;
4233 dev_flow->external = 0;
4234 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
4235 ret = flow_drv_translate(dev, dev_flow, &attr_tx,
4237 actions_hairpin_tx.actions, error);
4242 * Update the metadata register copy table. If extensive
4243 * metadata feature is enabled and registers are supported
4244 * we might create the extra rte_flow for each unique
4245 * MARK/FLAG action ID.
4247 * The table is updated for ingress Flows only, because
4248 * the egress Flows belong to the different device and
4249 * copy table should be updated in peer NIC Rx domain.
4251 if (attr->ingress &&
4252 (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) {
4253 ret = flow_mreg_update_copy_table(dev, flow, actions, error);
4257 if (dev->data->dev_started) {
4258 ret = flow_drv_apply(dev, flow, error);
4263 TAILQ_INSERT_TAIL(list, flow, next);
4264 flow_rxq_flags_set(dev, flow);
4268 mlx5_flow_id_release(priv->sh->flow_id_pool,
4273 flow_mreg_del_copy_action(dev, flow);
4274 ret = rte_errno; /* Save rte_errno before cleanup. */
4275 if (flow->hairpin_flow_id)
4276 mlx5_flow_id_release(priv->sh->flow_id_pool,
4277 flow->hairpin_flow_id);
4279 flow_drv_destroy(dev, flow);
4281 rte_errno = ret; /* Restore rte_errno. */
4286 * Create a dedicated flow rule on e-switch table 0 (root table), to direct all
4287 * incoming packets to table 1.
4289 * Other flow rules, requested for group n, will be created in
4290 * e-switch table n+1.
4291 * Jump action to e-switch group n will be created to group n+1.
4293 * Used when working in switchdev mode, to utilise advantages of table 1
4297 * Pointer to Ethernet device.
4300 * Pointer to flow on success, NULL otherwise and rte_errno is set.
4303 mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev)
4305 const struct rte_flow_attr attr = {
4312 const struct rte_flow_item pattern = {
4313 .type = RTE_FLOW_ITEM_TYPE_END,
4315 struct rte_flow_action_jump jump = {
4318 const struct rte_flow_action actions[] = {
4320 .type = RTE_FLOW_ACTION_TYPE_JUMP,
4324 .type = RTE_FLOW_ACTION_TYPE_END,
4327 struct mlx5_priv *priv = dev->data->dev_private;
4328 struct rte_flow_error error;
4330 return flow_list_create(dev, &priv->ctrl_flows, &attr, &pattern,
4331 actions, false, &error);
4337 * @see rte_flow_create()
4341 mlx5_flow_create(struct rte_eth_dev *dev,
4342 const struct rte_flow_attr *attr,
4343 const struct rte_flow_item items[],
4344 const struct rte_flow_action actions[],
4345 struct rte_flow_error *error)
4347 struct mlx5_priv *priv = dev->data->dev_private;
4349 return flow_list_create(dev, &priv->flows,
4350 attr, items, actions, true, error);
4354 * Destroy a flow in a list.
4357 * Pointer to Ethernet device.
4359 * Pointer to a TAILQ flow list. If this parameter NULL,
4360 * there is no flow removal from the list.
4365 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
4366 struct rte_flow *flow)
4368 struct mlx5_priv *priv = dev->data->dev_private;
4371 * Update RX queue flags only if port is started, otherwise it is
4374 if (dev->data->dev_started)
4375 flow_rxq_flags_trim(dev, flow);
4376 if (flow->hairpin_flow_id)
4377 mlx5_flow_id_release(priv->sh->flow_id_pool,
4378 flow->hairpin_flow_id);
4379 flow_drv_destroy(dev, flow);
4381 TAILQ_REMOVE(list, flow, next);
4382 flow_mreg_del_copy_action(dev, flow);
4383 rte_free(flow->fdir);
4388 * Destroy all flows.
4391 * Pointer to Ethernet device.
4393 * Pointer to a TAILQ flow list.
4396 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
4398 while (!TAILQ_EMPTY(list)) {
4399 struct rte_flow *flow;
4401 flow = TAILQ_FIRST(list);
4402 flow_list_destroy(dev, list, flow);
4410 * Pointer to Ethernet device.
4412 * Pointer to a TAILQ flow list.
4415 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
4417 struct rte_flow *flow;
4419 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) {
4420 flow_drv_remove(dev, flow);
4421 flow_mreg_stop_copy_action(dev, flow);
4423 flow_mreg_del_default_copy_action(dev);
4424 flow_rxq_flags_clear(dev);
4431 * Pointer to Ethernet device.
4433 * Pointer to a TAILQ flow list.
4436 * 0 on success, a negative errno value otherwise and rte_errno is set.
4439 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
4441 struct rte_flow *flow;
4442 struct rte_flow_error error;
4445 /* Make sure default copy action (reg_c[0] -> reg_b) is created. */
4446 ret = flow_mreg_add_default_copy_action(dev, &error);
4449 /* Apply Flows created by application. */
4450 TAILQ_FOREACH(flow, list, next) {
4451 ret = flow_mreg_start_copy_action(dev, flow);
4454 ret = flow_drv_apply(dev, flow, &error);
4457 flow_rxq_flags_set(dev, flow);
4461 ret = rte_errno; /* Save rte_errno before cleanup. */
4462 mlx5_flow_stop(dev, list);
4463 rte_errno = ret; /* Restore rte_errno. */
4468 * Verify the flow list is empty
4471 * Pointer to Ethernet device.
4473 * @return the number of flows not released.
4476 mlx5_flow_verify(struct rte_eth_dev *dev)
4478 struct mlx5_priv *priv = dev->data->dev_private;
4479 struct rte_flow *flow;
4482 TAILQ_FOREACH(flow, &priv->flows, next) {
4483 DRV_LOG(DEBUG, "port %u flow %p still referenced",
4484 dev->data->port_id, (void *)flow);
4491 * Enable default hairpin egress flow.
4494 * Pointer to Ethernet device.
4499 * 0 on success, a negative errno value otherwise and rte_errno is set.
4502 mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev,
4505 struct mlx5_priv *priv = dev->data->dev_private;
4506 const struct rte_flow_attr attr = {
4510 struct mlx5_rte_flow_item_tx_queue queue_spec = {
4513 struct mlx5_rte_flow_item_tx_queue queue_mask = {
4514 .queue = UINT32_MAX,
4516 struct rte_flow_item items[] = {
4518 .type = MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE,
4519 .spec = &queue_spec,
4521 .mask = &queue_mask,
4524 .type = RTE_FLOW_ITEM_TYPE_END,
4527 struct rte_flow_action_jump jump = {
4528 .group = MLX5_HAIRPIN_TX_TABLE,
4530 struct rte_flow_action actions[2];
4531 struct rte_flow *flow;
4532 struct rte_flow_error error;
4534 actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP;
4535 actions[0].conf = &jump;
4536 actions[1].type = RTE_FLOW_ACTION_TYPE_END;
4537 flow = flow_list_create(dev, &priv->ctrl_flows,
4538 &attr, items, actions, false, &error);
4541 "Failed to create ctrl flow: rte_errno(%d),"
4542 " type(%d), message(%s)",
4543 rte_errno, error.type,
4544 error.message ? error.message : " (no stated reason)");
4551 * Enable a control flow configured from the control plane.
4554 * Pointer to Ethernet device.
4556 * An Ethernet flow spec to apply.
4558 * An Ethernet flow mask to apply.
4560 * A VLAN flow spec to apply.
4562 * A VLAN flow mask to apply.
4565 * 0 on success, a negative errno value otherwise and rte_errno is set.
4568 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
4569 struct rte_flow_item_eth *eth_spec,
4570 struct rte_flow_item_eth *eth_mask,
4571 struct rte_flow_item_vlan *vlan_spec,
4572 struct rte_flow_item_vlan *vlan_mask)
4574 struct mlx5_priv *priv = dev->data->dev_private;
4575 const struct rte_flow_attr attr = {
4577 .priority = MLX5_FLOW_PRIO_RSVD,
4579 struct rte_flow_item items[] = {
4581 .type = RTE_FLOW_ITEM_TYPE_ETH,
4587 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
4588 RTE_FLOW_ITEM_TYPE_END,
4594 .type = RTE_FLOW_ITEM_TYPE_END,
4597 uint16_t queue[priv->reta_idx_n];
4598 struct rte_flow_action_rss action_rss = {
4599 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
4601 .types = priv->rss_conf.rss_hf,
4602 .key_len = priv->rss_conf.rss_key_len,
4603 .queue_num = priv->reta_idx_n,
4604 .key = priv->rss_conf.rss_key,
4607 struct rte_flow_action actions[] = {
4609 .type = RTE_FLOW_ACTION_TYPE_RSS,
4610 .conf = &action_rss,
4613 .type = RTE_FLOW_ACTION_TYPE_END,
4616 struct rte_flow *flow;
4617 struct rte_flow_error error;
4620 if (!priv->reta_idx_n || !priv->rxqs_n) {
4623 for (i = 0; i != priv->reta_idx_n; ++i)
4624 queue[i] = (*priv->reta_idx)[i];
4625 flow = flow_list_create(dev, &priv->ctrl_flows,
4626 &attr, items, actions, false, &error);
4633 * Enable a flow control configured from the control plane.
4636 * Pointer to Ethernet device.
4638 * An Ethernet flow spec to apply.
4640 * An Ethernet flow mask to apply.
4643 * 0 on success, a negative errno value otherwise and rte_errno is set.
4646 mlx5_ctrl_flow(struct rte_eth_dev *dev,
4647 struct rte_flow_item_eth *eth_spec,
4648 struct rte_flow_item_eth *eth_mask)
4650 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
4656 * @see rte_flow_destroy()
4660 mlx5_flow_destroy(struct rte_eth_dev *dev,
4661 struct rte_flow *flow,
4662 struct rte_flow_error *error __rte_unused)
4664 struct mlx5_priv *priv = dev->data->dev_private;
4666 flow_list_destroy(dev, &priv->flows, flow);
4671 * Destroy all flows.
4673 * @see rte_flow_flush()
4677 mlx5_flow_flush(struct rte_eth_dev *dev,
4678 struct rte_flow_error *error __rte_unused)
4680 struct mlx5_priv *priv = dev->data->dev_private;
4682 mlx5_flow_list_flush(dev, &priv->flows);
4689 * @see rte_flow_isolate()
4693 mlx5_flow_isolate(struct rte_eth_dev *dev,
4695 struct rte_flow_error *error)
4697 struct mlx5_priv *priv = dev->data->dev_private;
4699 if (dev->data->dev_started) {
4700 rte_flow_error_set(error, EBUSY,
4701 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
4703 "port must be stopped first");
4706 priv->isolated = !!enable;
4708 dev->dev_ops = &mlx5_dev_ops_isolate;
4710 dev->dev_ops = &mlx5_dev_ops;
4717 * @see rte_flow_query()
4721 flow_drv_query(struct rte_eth_dev *dev,
4722 struct rte_flow *flow,
4723 const struct rte_flow_action *actions,
4725 struct rte_flow_error *error)
4727 const struct mlx5_flow_driver_ops *fops;
4728 enum mlx5_flow_drv_type ftype = flow->drv_type;
4730 assert(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
4731 fops = flow_get_drv_ops(ftype);
4733 return fops->query(dev, flow, actions, data, error);
4739 * @see rte_flow_query()
4743 mlx5_flow_query(struct rte_eth_dev *dev,
4744 struct rte_flow *flow,
4745 const struct rte_flow_action *actions,
4747 struct rte_flow_error *error)
4751 ret = flow_drv_query(dev, flow, actions, data, error);
4758 * Convert a flow director filter to a generic flow.
4761 * Pointer to Ethernet device.
4762 * @param fdir_filter
4763 * Flow director filter to add.
4765 * Generic flow parameters structure.
4768 * 0 on success, a negative errno value otherwise and rte_errno is set.
4771 flow_fdir_filter_convert(struct rte_eth_dev *dev,
4772 const struct rte_eth_fdir_filter *fdir_filter,
4773 struct mlx5_fdir *attributes)
4775 struct mlx5_priv *priv = dev->data->dev_private;
4776 const struct rte_eth_fdir_input *input = &fdir_filter->input;
4777 const struct rte_eth_fdir_masks *mask =
4778 &dev->data->dev_conf.fdir_conf.mask;
4780 /* Validate queue number. */
4781 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
4782 DRV_LOG(ERR, "port %u invalid queue number %d",
4783 dev->data->port_id, fdir_filter->action.rx_queue);
4787 attributes->attr.ingress = 1;
4788 attributes->items[0] = (struct rte_flow_item) {
4789 .type = RTE_FLOW_ITEM_TYPE_ETH,
4790 .spec = &attributes->l2,
4791 .mask = &attributes->l2_mask,
4793 switch (fdir_filter->action.behavior) {
4794 case RTE_ETH_FDIR_ACCEPT:
4795 attributes->actions[0] = (struct rte_flow_action){
4796 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
4797 .conf = &attributes->queue,
4800 case RTE_ETH_FDIR_REJECT:
4801 attributes->actions[0] = (struct rte_flow_action){
4802 .type = RTE_FLOW_ACTION_TYPE_DROP,
4806 DRV_LOG(ERR, "port %u invalid behavior %d",
4808 fdir_filter->action.behavior);
4809 rte_errno = ENOTSUP;
4812 attributes->queue.index = fdir_filter->action.rx_queue;
4814 switch (fdir_filter->input.flow_type) {
4815 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4816 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4817 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4818 attributes->l3.ipv4.hdr = (struct rte_ipv4_hdr){
4819 .src_addr = input->flow.ip4_flow.src_ip,
4820 .dst_addr = input->flow.ip4_flow.dst_ip,
4821 .time_to_live = input->flow.ip4_flow.ttl,
4822 .type_of_service = input->flow.ip4_flow.tos,
4824 attributes->l3_mask.ipv4.hdr = (struct rte_ipv4_hdr){
4825 .src_addr = mask->ipv4_mask.src_ip,
4826 .dst_addr = mask->ipv4_mask.dst_ip,
4827 .time_to_live = mask->ipv4_mask.ttl,
4828 .type_of_service = mask->ipv4_mask.tos,
4829 .next_proto_id = mask->ipv4_mask.proto,
4831 attributes->items[1] = (struct rte_flow_item){
4832 .type = RTE_FLOW_ITEM_TYPE_IPV4,
4833 .spec = &attributes->l3,
4834 .mask = &attributes->l3_mask,
4837 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4838 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4839 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4840 attributes->l3.ipv6.hdr = (struct rte_ipv6_hdr){
4841 .hop_limits = input->flow.ipv6_flow.hop_limits,
4842 .proto = input->flow.ipv6_flow.proto,
4845 memcpy(attributes->l3.ipv6.hdr.src_addr,
4846 input->flow.ipv6_flow.src_ip,
4847 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4848 memcpy(attributes->l3.ipv6.hdr.dst_addr,
4849 input->flow.ipv6_flow.dst_ip,
4850 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
4851 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
4852 mask->ipv6_mask.src_ip,
4853 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4854 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
4855 mask->ipv6_mask.dst_ip,
4856 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
4857 attributes->items[1] = (struct rte_flow_item){
4858 .type = RTE_FLOW_ITEM_TYPE_IPV6,
4859 .spec = &attributes->l3,
4860 .mask = &attributes->l3_mask,
4864 DRV_LOG(ERR, "port %u invalid flow type%d",
4865 dev->data->port_id, fdir_filter->input.flow_type);
4866 rte_errno = ENOTSUP;
4870 switch (fdir_filter->input.flow_type) {
4871 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
4872 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4873 .src_port = input->flow.udp4_flow.src_port,
4874 .dst_port = input->flow.udp4_flow.dst_port,
4876 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4877 .src_port = mask->src_port_mask,
4878 .dst_port = mask->dst_port_mask,
4880 attributes->items[2] = (struct rte_flow_item){
4881 .type = RTE_FLOW_ITEM_TYPE_UDP,
4882 .spec = &attributes->l4,
4883 .mask = &attributes->l4_mask,
4886 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
4887 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4888 .src_port = input->flow.tcp4_flow.src_port,
4889 .dst_port = input->flow.tcp4_flow.dst_port,
4891 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4892 .src_port = mask->src_port_mask,
4893 .dst_port = mask->dst_port_mask,
4895 attributes->items[2] = (struct rte_flow_item){
4896 .type = RTE_FLOW_ITEM_TYPE_TCP,
4897 .spec = &attributes->l4,
4898 .mask = &attributes->l4_mask,
4901 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
4902 attributes->l4.udp.hdr = (struct rte_udp_hdr){
4903 .src_port = input->flow.udp6_flow.src_port,
4904 .dst_port = input->flow.udp6_flow.dst_port,
4906 attributes->l4_mask.udp.hdr = (struct rte_udp_hdr){
4907 .src_port = mask->src_port_mask,
4908 .dst_port = mask->dst_port_mask,
4910 attributes->items[2] = (struct rte_flow_item){
4911 .type = RTE_FLOW_ITEM_TYPE_UDP,
4912 .spec = &attributes->l4,
4913 .mask = &attributes->l4_mask,
4916 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
4917 attributes->l4.tcp.hdr = (struct rte_tcp_hdr){
4918 .src_port = input->flow.tcp6_flow.src_port,
4919 .dst_port = input->flow.tcp6_flow.dst_port,
4921 attributes->l4_mask.tcp.hdr = (struct rte_tcp_hdr){
4922 .src_port = mask->src_port_mask,
4923 .dst_port = mask->dst_port_mask,
4925 attributes->items[2] = (struct rte_flow_item){
4926 .type = RTE_FLOW_ITEM_TYPE_TCP,
4927 .spec = &attributes->l4,
4928 .mask = &attributes->l4_mask,
4931 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
4932 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
4935 DRV_LOG(ERR, "port %u invalid flow type%d",
4936 dev->data->port_id, fdir_filter->input.flow_type);
4937 rte_errno = ENOTSUP;
4943 #define FLOW_FDIR_CMP(f1, f2, fld) \
4944 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
4947 * Compare two FDIR flows. If items and actions are identical, the two flows are
4951 * Pointer to Ethernet device.
4953 * FDIR flow to compare.
4955 * FDIR flow to compare.
4958 * Zero on match, 1 otherwise.
4961 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
4963 if (FLOW_FDIR_CMP(f1, f2, attr) ||
4964 FLOW_FDIR_CMP(f1, f2, l2) ||
4965 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
4966 FLOW_FDIR_CMP(f1, f2, l3) ||
4967 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
4968 FLOW_FDIR_CMP(f1, f2, l4) ||
4969 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
4970 FLOW_FDIR_CMP(f1, f2, actions[0].type))
4972 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
4973 FLOW_FDIR_CMP(f1, f2, queue))
4979 * Search device flow list to find out a matched FDIR flow.
4982 * Pointer to Ethernet device.
4984 * FDIR flow to lookup.
4987 * Pointer of flow if found, NULL otherwise.
4989 static struct rte_flow *
4990 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
4992 struct mlx5_priv *priv = dev->data->dev_private;
4993 struct rte_flow *flow = NULL;
4996 TAILQ_FOREACH(flow, &priv->flows, next) {
4997 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
4998 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
4999 dev->data->port_id, (void *)flow);
5007 * Add new flow director filter and store it in list.
5010 * Pointer to Ethernet device.
5011 * @param fdir_filter
5012 * Flow director filter to add.
5015 * 0 on success, a negative errno value otherwise and rte_errno is set.
5018 flow_fdir_filter_add(struct rte_eth_dev *dev,
5019 const struct rte_eth_fdir_filter *fdir_filter)
5021 struct mlx5_priv *priv = dev->data->dev_private;
5022 struct mlx5_fdir *fdir_flow;
5023 struct rte_flow *flow;
5026 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
5031 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
5034 flow = flow_fdir_filter_lookup(dev, fdir_flow);
5039 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
5040 fdir_flow->items, fdir_flow->actions, true,
5044 assert(!flow->fdir);
5045 flow->fdir = fdir_flow;
5046 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
5047 dev->data->port_id, (void *)flow);
5050 rte_free(fdir_flow);
5055 * Delete specific filter.
5058 * Pointer to Ethernet device.
5059 * @param fdir_filter
5060 * Filter to be deleted.
5063 * 0 on success, a negative errno value otherwise and rte_errno is set.
5066 flow_fdir_filter_delete(struct rte_eth_dev *dev,
5067 const struct rte_eth_fdir_filter *fdir_filter)
5069 struct mlx5_priv *priv = dev->data->dev_private;
5070 struct rte_flow *flow;
5071 struct mlx5_fdir fdir_flow = {
5076 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
5079 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
5084 flow_list_destroy(dev, &priv->flows, flow);
5085 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
5086 dev->data->port_id, (void *)flow);
5091 * Update queue for specific filter.
5094 * Pointer to Ethernet device.
5095 * @param fdir_filter
5096 * Filter to be updated.
5099 * 0 on success, a negative errno value otherwise and rte_errno is set.
5102 flow_fdir_filter_update(struct rte_eth_dev *dev,
5103 const struct rte_eth_fdir_filter *fdir_filter)
5107 ret = flow_fdir_filter_delete(dev, fdir_filter);
5110 return flow_fdir_filter_add(dev, fdir_filter);
5114 * Flush all filters.
5117 * Pointer to Ethernet device.
5120 flow_fdir_filter_flush(struct rte_eth_dev *dev)
5122 struct mlx5_priv *priv = dev->data->dev_private;
5124 mlx5_flow_list_flush(dev, &priv->flows);
5128 * Get flow director information.
5131 * Pointer to Ethernet device.
5132 * @param[out] fdir_info
5133 * Resulting flow director information.
5136 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
5138 struct rte_eth_fdir_masks *mask =
5139 &dev->data->dev_conf.fdir_conf.mask;
5141 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
5142 fdir_info->guarant_spc = 0;
5143 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
5144 fdir_info->max_flexpayload = 0;
5145 fdir_info->flow_types_mask[0] = 0;
5146 fdir_info->flex_payload_unit = 0;
5147 fdir_info->max_flex_payload_segment_num = 0;
5148 fdir_info->flex_payload_limit = 0;
5149 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
5153 * Deal with flow director operations.
5156 * Pointer to Ethernet device.
5158 * Operation to perform.
5160 * Pointer to operation-specific structure.
5163 * 0 on success, a negative errno value otherwise and rte_errno is set.
5166 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
5169 enum rte_fdir_mode fdir_mode =
5170 dev->data->dev_conf.fdir_conf.mode;
5172 if (filter_op == RTE_ETH_FILTER_NOP)
5174 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
5175 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
5176 DRV_LOG(ERR, "port %u flow director mode %d not supported",
5177 dev->data->port_id, fdir_mode);
5181 switch (filter_op) {
5182 case RTE_ETH_FILTER_ADD:
5183 return flow_fdir_filter_add(dev, arg);
5184 case RTE_ETH_FILTER_UPDATE:
5185 return flow_fdir_filter_update(dev, arg);
5186 case RTE_ETH_FILTER_DELETE:
5187 return flow_fdir_filter_delete(dev, arg);
5188 case RTE_ETH_FILTER_FLUSH:
5189 flow_fdir_filter_flush(dev);
5191 case RTE_ETH_FILTER_INFO:
5192 flow_fdir_info_get(dev, arg);
5195 DRV_LOG(DEBUG, "port %u unknown operation %u",
5196 dev->data->port_id, filter_op);
5204 * Manage filter operations.
5207 * Pointer to Ethernet device structure.
5208 * @param filter_type
5211 * Operation to perform.
5213 * Pointer to operation-specific structure.
5216 * 0 on success, a negative errno value otherwise and rte_errno is set.
5219 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
5220 enum rte_filter_type filter_type,
5221 enum rte_filter_op filter_op,
5224 switch (filter_type) {
5225 case RTE_ETH_FILTER_GENERIC:
5226 if (filter_op != RTE_ETH_FILTER_GET) {
5230 *(const void **)arg = &mlx5_flow_ops;
5232 case RTE_ETH_FILTER_FDIR:
5233 return flow_fdir_ctrl_func(dev, filter_op, arg);
5235 DRV_LOG(ERR, "port %u filter type (%d) not supported",
5236 dev->data->port_id, filter_type);
5237 rte_errno = ENOTSUP;
5244 * Create the needed meter and suffix tables.
5247 * Pointer to Ethernet device.
5249 * Pointer to the flow meter.
5252 * Pointer to table set on success, NULL otherwise.
5254 struct mlx5_meter_domains_infos *
5255 mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev,
5256 const struct mlx5_flow_meter *fm)
5258 const struct mlx5_flow_driver_ops *fops;
5260 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5261 return fops->create_mtr_tbls(dev, fm);
5265 * Destroy the meter table set.
5268 * Pointer to Ethernet device.
5270 * Pointer to the meter table set.
5276 mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev,
5277 struct mlx5_meter_domains_infos *tbls)
5279 const struct mlx5_flow_driver_ops *fops;
5281 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5282 return fops->destroy_mtr_tbls(dev, tbls);
5286 * Create policer rules.
5289 * Pointer to Ethernet device.
5291 * Pointer to flow meter structure.
5293 * Pointer to flow attributes.
5296 * 0 on success, -1 otherwise.
5299 mlx5_flow_create_policer_rules(struct rte_eth_dev *dev,
5300 struct mlx5_flow_meter *fm,
5301 const struct rte_flow_attr *attr)
5303 const struct mlx5_flow_driver_ops *fops;
5305 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5306 return fops->create_policer_rules(dev, fm, attr);
5310 * Destroy policer rules.
5313 * Pointer to flow meter structure.
5315 * Pointer to flow attributes.
5318 * 0 on success, -1 otherwise.
5321 mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev,
5322 struct mlx5_flow_meter *fm,
5323 const struct rte_flow_attr *attr)
5325 const struct mlx5_flow_driver_ops *fops;
5327 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5328 return fops->destroy_policer_rules(dev, fm, attr);
5332 * Allocate a counter.
5335 * Pointer to Ethernet device structure.
5338 * Pointer to allocated counter on success, NULL otherwise.
5340 struct mlx5_flow_counter *
5341 mlx5_counter_alloc(struct rte_eth_dev *dev)
5343 const struct mlx5_flow_driver_ops *fops;
5344 struct rte_flow_attr attr = { .transfer = 0 };
5346 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5347 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5348 return fops->counter_alloc(dev);
5351 "port %u counter allocate is not supported.",
5352 dev->data->port_id);
5360 * Pointer to Ethernet device structure.
5362 * Pointer to counter to be free.
5365 mlx5_counter_free(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt)
5367 const struct mlx5_flow_driver_ops *fops;
5368 struct rte_flow_attr attr = { .transfer = 0 };
5370 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5371 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5372 fops->counter_free(dev, cnt);
5376 "port %u counter free is not supported.",
5377 dev->data->port_id);
5381 * Query counter statistics.
5384 * Pointer to Ethernet device structure.
5386 * Pointer to counter to query.
5388 * Set to clear counter statistics.
5390 * The counter hits packets number to save.
5392 * The counter hits bytes number to save.
5395 * 0 on success, a negative errno value otherwise.
5398 mlx5_counter_query(struct rte_eth_dev *dev, struct mlx5_flow_counter *cnt,
5399 bool clear, uint64_t *pkts, uint64_t *bytes)
5401 const struct mlx5_flow_driver_ops *fops;
5402 struct rte_flow_attr attr = { .transfer = 0 };
5404 if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) {
5405 fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV);
5406 return fops->counter_query(dev, cnt, clear, pkts, bytes);
5409 "port %u counter query is not supported.",
5410 dev->data->port_id);
5414 #define MLX5_POOL_QUERY_FREQ_US 1000000
5417 * Set the periodic procedure for triggering asynchronous batch queries for all
5418 * the counter pools.
5421 * Pointer to mlx5_ibv_shared object.
5424 mlx5_set_query_alarm(struct mlx5_ibv_shared *sh)
5426 struct mlx5_pools_container *cont = MLX5_CNT_CONTAINER(sh, 0, 0);
5427 uint32_t pools_n = rte_atomic16_read(&cont->n_valid);
5430 cont = MLX5_CNT_CONTAINER(sh, 1, 0);
5431 pools_n += rte_atomic16_read(&cont->n_valid);
5432 us = MLX5_POOL_QUERY_FREQ_US / pools_n;
5433 DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us);
5434 if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) {
5435 sh->cmng.query_thread_on = 0;
5436 DRV_LOG(ERR, "Cannot reinitialize query alarm");
5438 sh->cmng.query_thread_on = 1;
5443 * The periodic procedure for triggering asynchronous batch queries for all the
5444 * counter pools. This function is probably called by the host thread.
5447 * The parameter for the alarm process.
5450 mlx5_flow_query_alarm(void *arg)
5452 struct mlx5_ibv_shared *sh = arg;
5453 struct mlx5_devx_obj *dcs;
5456 uint8_t batch = sh->cmng.batch;
5457 uint16_t pool_index = sh->cmng.pool_index;
5458 struct mlx5_pools_container *cont;
5459 struct mlx5_pools_container *mcont;
5460 struct mlx5_flow_counter_pool *pool;
5462 if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES)
5465 cont = MLX5_CNT_CONTAINER(sh, batch, 1);
5466 mcont = MLX5_CNT_CONTAINER(sh, batch, 0);
5467 /* Check if resize was done and need to flip a container. */
5468 if (cont != mcont) {
5470 /* Clean the old container. */
5471 rte_free(cont->pools);
5472 memset(cont, 0, sizeof(*cont));
5475 /* Flip the host container. */
5476 sh->cmng.mhi[batch] ^= (uint8_t)2;
5480 /* 2 empty containers case is unexpected. */
5481 if (unlikely(batch != sh->cmng.batch))
5485 goto next_container;
5487 pool = cont->pools[pool_index];
5489 /* There is a pool query in progress. */
5492 LIST_FIRST(&sh->cmng.free_stat_raws);
5494 /* No free counter statistics raw memory. */
5496 dcs = (struct mlx5_devx_obj *)(uintptr_t)rte_atomic64_read
5498 offset = batch ? 0 : dcs->id % MLX5_COUNTERS_PER_POOL;
5499 ret = mlx5_devx_cmd_flow_counter_query(dcs, 0, MLX5_COUNTERS_PER_POOL -
5501 pool->raw_hw->mem_mng->dm->id,
5503 (pool->raw_hw->data + offset),
5505 (uint64_t)(uintptr_t)pool);
5507 DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID"
5508 " %d", pool->min_dcs->id);
5509 pool->raw_hw = NULL;
5512 pool->raw_hw->min_dcs_id = dcs->id;
5513 LIST_REMOVE(pool->raw_hw, next);
5514 sh->cmng.pending_queries++;
5516 if (pool_index >= rte_atomic16_read(&cont->n_valid)) {
5521 sh->cmng.batch = batch;
5522 sh->cmng.pool_index = pool_index;
5523 mlx5_set_query_alarm(sh);
5527 * Handler for the HW respond about ready values from an asynchronous batch
5528 * query. This function is probably called by the host thread.
5531 * The pointer to the shared IB device context.
5532 * @param[in] async_id
5533 * The Devx async ID.
5535 * The status of the completion.
5538 mlx5_flow_async_pool_query_handle(struct mlx5_ibv_shared *sh,
5539 uint64_t async_id, int status)
5541 struct mlx5_flow_counter_pool *pool =
5542 (struct mlx5_flow_counter_pool *)(uintptr_t)async_id;
5543 struct mlx5_counter_stats_raw *raw_to_free;
5545 if (unlikely(status)) {
5546 raw_to_free = pool->raw_hw;
5548 raw_to_free = pool->raw;
5549 rte_spinlock_lock(&pool->sl);
5550 pool->raw = pool->raw_hw;
5551 rte_spinlock_unlock(&pool->sl);
5552 rte_atomic64_add(&pool->query_gen, 1);
5553 /* Be sure the new raw counters data is updated in memory. */
5556 LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next);
5557 pool->raw_hw = NULL;
5558 sh->cmng.pending_queries--;
5562 * Translate the rte_flow group index to HW table value.
5564 * @param[in] attributes
5565 * Pointer to flow attributes
5566 * @param[in] external
5567 * Value is part of flow rule created by request external to PMD.
5569 * rte_flow group index value.
5573 * Pointer to error structure.
5576 * 0 on success, a negative errno value otherwise and rte_errno is set.
5579 mlx5_flow_group_to_table(const struct rte_flow_attr *attributes, bool external,
5580 uint32_t group, uint32_t *table,
5581 struct rte_flow_error *error)
5583 if (attributes->transfer && external) {
5584 if (group == UINT32_MAX)
5585 return rte_flow_error_set
5587 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
5589 "group index not supported");
5598 * Discover availability of metadata reg_c's.
5600 * Iteratively use test flows to check availability.
5603 * Pointer to the Ethernet device structure.
5606 * 0 on success, a negative errno value otherwise and rte_errno is set.
5609 mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev)
5611 struct mlx5_priv *priv = dev->data->dev_private;
5612 struct mlx5_dev_config *config = &priv->config;
5613 enum modify_reg idx;
5616 /* reg_c[0] and reg_c[1] are reserved. */
5617 config->flow_mreg_c[n++] = REG_C_0;
5618 config->flow_mreg_c[n++] = REG_C_1;
5619 /* Discover availability of other reg_c's. */
5620 for (idx = REG_C_2; idx <= REG_C_7; ++idx) {
5621 struct rte_flow_attr attr = {
5622 .group = MLX5_FLOW_MREG_CP_TABLE_GROUP,
5623 .priority = MLX5_FLOW_PRIO_RSVD,
5626 struct rte_flow_item items[] = {
5628 .type = RTE_FLOW_ITEM_TYPE_END,
5631 struct rte_flow_action actions[] = {
5633 .type = MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG,
5634 .conf = &(struct mlx5_flow_action_copy_mreg){
5640 .type = RTE_FLOW_ACTION_TYPE_JUMP,
5641 .conf = &(struct rte_flow_action_jump){
5642 .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP,
5646 .type = RTE_FLOW_ACTION_TYPE_END,
5649 struct rte_flow *flow;
5650 struct rte_flow_error error;
5652 if (!config->dv_flow_en)
5654 /* Create internal flow, validation skips copy action. */
5655 flow = flow_list_create(dev, NULL, &attr, items,
5656 actions, false, &error);
5659 if (dev->data->dev_started || !flow_drv_apply(dev, flow, NULL))
5660 config->flow_mreg_c[n++] = idx;
5661 flow_list_destroy(dev, NULL, flow);
5663 for (; n < MLX5_MREG_C_NUM; ++n)
5664 config->flow_mreg_c[n] = REG_NONE;