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_eth_ctrl.h>
25 #include <rte_ethdev_driver.h>
27 #include <rte_flow_driver.h>
28 #include <rte_malloc.h>
32 #include "mlx5_defs.h"
34 #include "mlx5_glue.h"
35 #include "mlx5_flow.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_tcf_drv_ops;
46 extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops;
48 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops;
50 const struct mlx5_flow_driver_ops *flow_drv_ops[] = {
51 [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops,
52 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
53 [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops,
55 [MLX5_FLOW_TYPE_TCF] = &mlx5_flow_tcf_drv_ops,
56 [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops,
57 [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops
62 MLX5_EXPANSION_ROOT_OUTER,
63 MLX5_EXPANSION_ROOT_ETH_VLAN,
64 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN,
65 MLX5_EXPANSION_OUTER_ETH,
66 MLX5_EXPANSION_OUTER_ETH_VLAN,
67 MLX5_EXPANSION_OUTER_VLAN,
68 MLX5_EXPANSION_OUTER_IPV4,
69 MLX5_EXPANSION_OUTER_IPV4_UDP,
70 MLX5_EXPANSION_OUTER_IPV4_TCP,
71 MLX5_EXPANSION_OUTER_IPV6,
72 MLX5_EXPANSION_OUTER_IPV6_UDP,
73 MLX5_EXPANSION_OUTER_IPV6_TCP,
75 MLX5_EXPANSION_VXLAN_GPE,
79 MLX5_EXPANSION_ETH_VLAN,
82 MLX5_EXPANSION_IPV4_UDP,
83 MLX5_EXPANSION_IPV4_TCP,
85 MLX5_EXPANSION_IPV6_UDP,
86 MLX5_EXPANSION_IPV6_TCP,
89 /** Supported expansion of items. */
90 static const struct rte_flow_expand_node mlx5_support_expansion[] = {
91 [MLX5_EXPANSION_ROOT] = {
92 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
95 .type = RTE_FLOW_ITEM_TYPE_END,
97 [MLX5_EXPANSION_ROOT_OUTER] = {
98 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH,
99 MLX5_EXPANSION_OUTER_IPV4,
100 MLX5_EXPANSION_OUTER_IPV6),
101 .type = RTE_FLOW_ITEM_TYPE_END,
103 [MLX5_EXPANSION_ROOT_ETH_VLAN] = {
104 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN),
105 .type = RTE_FLOW_ITEM_TYPE_END,
107 [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = {
108 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH_VLAN),
109 .type = RTE_FLOW_ITEM_TYPE_END,
111 [MLX5_EXPANSION_OUTER_ETH] = {
112 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
113 MLX5_EXPANSION_OUTER_IPV6,
114 MLX5_EXPANSION_MPLS),
115 .type = RTE_FLOW_ITEM_TYPE_ETH,
118 [MLX5_EXPANSION_OUTER_ETH_VLAN] = {
119 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN),
120 .type = RTE_FLOW_ITEM_TYPE_ETH,
123 [MLX5_EXPANSION_OUTER_VLAN] = {
124 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4,
125 MLX5_EXPANSION_OUTER_IPV6),
126 .type = RTE_FLOW_ITEM_TYPE_VLAN,
128 [MLX5_EXPANSION_OUTER_IPV4] = {
129 .next = RTE_FLOW_EXPAND_RSS_NEXT
130 (MLX5_EXPANSION_OUTER_IPV4_UDP,
131 MLX5_EXPANSION_OUTER_IPV4_TCP,
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),
151 .type = RTE_FLOW_ITEM_TYPE_IPV6,
152 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
153 ETH_RSS_NONFRAG_IPV6_OTHER,
155 [MLX5_EXPANSION_OUTER_IPV6_UDP] = {
156 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN,
157 MLX5_EXPANSION_VXLAN_GPE),
158 .type = RTE_FLOW_ITEM_TYPE_UDP,
159 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
161 [MLX5_EXPANSION_OUTER_IPV6_TCP] = {
162 .type = RTE_FLOW_ITEM_TYPE_TCP,
163 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
165 [MLX5_EXPANSION_VXLAN] = {
166 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH),
167 .type = RTE_FLOW_ITEM_TYPE_VXLAN,
169 [MLX5_EXPANSION_VXLAN_GPE] = {
170 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH,
172 MLX5_EXPANSION_IPV6),
173 .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
175 [MLX5_EXPANSION_GRE] = {
176 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4),
177 .type = RTE_FLOW_ITEM_TYPE_GRE,
179 [MLX5_EXPANSION_MPLS] = {
180 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
181 MLX5_EXPANSION_IPV6),
182 .type = RTE_FLOW_ITEM_TYPE_MPLS,
184 [MLX5_EXPANSION_ETH] = {
185 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
186 MLX5_EXPANSION_IPV6),
187 .type = RTE_FLOW_ITEM_TYPE_ETH,
189 [MLX5_EXPANSION_ETH_VLAN] = {
190 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN),
191 .type = RTE_FLOW_ITEM_TYPE_ETH,
193 [MLX5_EXPANSION_VLAN] = {
194 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4,
195 MLX5_EXPANSION_IPV6),
196 .type = RTE_FLOW_ITEM_TYPE_VLAN,
198 [MLX5_EXPANSION_IPV4] = {
199 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP,
200 MLX5_EXPANSION_IPV4_TCP),
201 .type = RTE_FLOW_ITEM_TYPE_IPV4,
202 .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
203 ETH_RSS_NONFRAG_IPV4_OTHER,
205 [MLX5_EXPANSION_IPV4_UDP] = {
206 .type = RTE_FLOW_ITEM_TYPE_UDP,
207 .rss_types = ETH_RSS_NONFRAG_IPV4_UDP,
209 [MLX5_EXPANSION_IPV4_TCP] = {
210 .type = RTE_FLOW_ITEM_TYPE_TCP,
211 .rss_types = ETH_RSS_NONFRAG_IPV4_TCP,
213 [MLX5_EXPANSION_IPV6] = {
214 .next = RTE_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP,
215 MLX5_EXPANSION_IPV6_TCP),
216 .type = RTE_FLOW_ITEM_TYPE_IPV6,
217 .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
218 ETH_RSS_NONFRAG_IPV6_OTHER,
220 [MLX5_EXPANSION_IPV6_UDP] = {
221 .type = RTE_FLOW_ITEM_TYPE_UDP,
222 .rss_types = ETH_RSS_NONFRAG_IPV6_UDP,
224 [MLX5_EXPANSION_IPV6_TCP] = {
225 .type = RTE_FLOW_ITEM_TYPE_TCP,
226 .rss_types = ETH_RSS_NONFRAG_IPV6_TCP,
230 static const struct rte_flow_ops mlx5_flow_ops = {
231 .validate = mlx5_flow_validate,
232 .create = mlx5_flow_create,
233 .destroy = mlx5_flow_destroy,
234 .flush = mlx5_flow_flush,
235 .isolate = mlx5_flow_isolate,
236 .query = mlx5_flow_query,
239 /* Convert FDIR request to Generic flow. */
241 struct rte_flow_attr attr;
242 struct rte_flow_item items[4];
243 struct rte_flow_item_eth l2;
244 struct rte_flow_item_eth l2_mask;
246 struct rte_flow_item_ipv4 ipv4;
247 struct rte_flow_item_ipv6 ipv6;
250 struct rte_flow_item_ipv4 ipv4;
251 struct rte_flow_item_ipv6 ipv6;
254 struct rte_flow_item_udp udp;
255 struct rte_flow_item_tcp tcp;
258 struct rte_flow_item_udp udp;
259 struct rte_flow_item_tcp tcp;
261 struct rte_flow_action actions[2];
262 struct rte_flow_action_queue queue;
265 /* Map of Verbs to Flow priority with 8 Verbs priorities. */
266 static const uint32_t priority_map_3[][MLX5_PRIORITY_MAP_MAX] = {
267 { 0, 1, 2 }, { 2, 3, 4 }, { 5, 6, 7 },
270 /* Map of Verbs to Flow priority with 16 Verbs priorities. */
271 static const uint32_t priority_map_5[][MLX5_PRIORITY_MAP_MAX] = {
272 { 0, 1, 2 }, { 3, 4, 5 }, { 6, 7, 8 },
273 { 9, 10, 11 }, { 12, 13, 14 },
276 /* Tunnel information. */
277 struct mlx5_flow_tunnel_info {
278 uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */
279 uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */
282 static struct mlx5_flow_tunnel_info tunnels_info[] = {
284 .tunnel = MLX5_FLOW_LAYER_VXLAN,
285 .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP,
288 .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE,
289 .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP,
292 .tunnel = MLX5_FLOW_LAYER_GRE,
293 .ptype = RTE_PTYPE_TUNNEL_GRE,
296 .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP,
297 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP,
300 .tunnel = MLX5_FLOW_LAYER_MPLS,
301 .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE,
306 * Discover the maximum number of priority available.
309 * Pointer to the Ethernet device structure.
312 * number of supported flow priority on success, a negative errno
313 * value otherwise and rte_errno is set.
316 mlx5_flow_discover_priorities(struct rte_eth_dev *dev)
319 struct ibv_flow_attr attr;
320 struct ibv_flow_spec_eth eth;
321 struct ibv_flow_spec_action_drop drop;
327 .type = IBV_FLOW_SPEC_ETH,
328 .size = sizeof(struct ibv_flow_spec_eth),
331 .size = sizeof(struct ibv_flow_spec_action_drop),
332 .type = IBV_FLOW_SPEC_ACTION_DROP,
335 struct ibv_flow *flow;
336 struct mlx5_hrxq *drop = mlx5_hrxq_drop_new(dev);
337 uint16_t vprio[] = { 8, 16 };
345 for (i = 0; i != RTE_DIM(vprio); i++) {
346 flow_attr.attr.priority = vprio[i] - 1;
347 flow = mlx5_glue->create_flow(drop->qp, &flow_attr.attr);
350 claim_zero(mlx5_glue->destroy_flow(flow));
355 priority = RTE_DIM(priority_map_3);
358 priority = RTE_DIM(priority_map_5);
363 "port %u verbs maximum priority: %d expected 8/16",
364 dev->data->port_id, vprio[i]);
367 mlx5_hrxq_drop_release(dev);
368 DRV_LOG(INFO, "port %u flow maximum priority: %d",
369 dev->data->port_id, priority);
374 * Adjust flow priority based on the highest layer and the request priority.
377 * Pointer to the Ethernet device structure.
378 * @param[in] priority
379 * The rule base priority.
380 * @param[in] subpriority
381 * The priority based on the items.
386 uint32_t mlx5_flow_adjust_priority(struct rte_eth_dev *dev, int32_t priority,
387 uint32_t subpriority)
390 struct priv *priv = dev->data->dev_private;
392 switch (priv->config.flow_prio) {
393 case RTE_DIM(priority_map_3):
394 res = priority_map_3[priority][subpriority];
396 case RTE_DIM(priority_map_5):
397 res = priority_map_5[priority][subpriority];
404 * Verify the @p item specifications (spec, last, mask) are compatible with the
408 * Item specification.
410 * @p item->mask or flow default bit-masks.
411 * @param[in] nic_mask
412 * Bit-masks covering supported fields by the NIC to compare with user mask.
414 * Bit-masks size in bytes.
416 * Pointer to error structure.
419 * 0 on success, a negative errno value otherwise and rte_errno is set.
422 mlx5_flow_item_acceptable(const struct rte_flow_item *item,
424 const uint8_t *nic_mask,
426 struct rte_flow_error *error)
431 for (i = 0; i < size; ++i)
432 if ((nic_mask[i] | mask[i]) != nic_mask[i])
433 return rte_flow_error_set(error, ENOTSUP,
434 RTE_FLOW_ERROR_TYPE_ITEM,
436 "mask enables non supported"
438 if (!item->spec && (item->mask || item->last))
439 return rte_flow_error_set(error, EINVAL,
440 RTE_FLOW_ERROR_TYPE_ITEM, item,
441 "mask/last without a spec is not"
443 if (item->spec && item->last) {
449 for (i = 0; i < size; ++i) {
450 spec[i] = ((const uint8_t *)item->spec)[i] & mask[i];
451 last[i] = ((const uint8_t *)item->last)[i] & mask[i];
453 ret = memcmp(spec, last, size);
455 return rte_flow_error_set(error, EINVAL,
456 RTE_FLOW_ERROR_TYPE_ITEM,
458 "range is not valid");
464 * Adjust the hash fields according to the @p flow information.
466 * @param[in] dev_flow.
467 * Pointer to the mlx5_flow.
469 * 1 when the hash field is for a tunnel item.
470 * @param[in] layer_types
472 * @param[in] hash_fields
476 * The hash fileds that should be used.
479 mlx5_flow_hashfields_adjust(struct mlx5_flow *dev_flow,
480 int tunnel __rte_unused, uint64_t layer_types,
481 uint64_t hash_fields)
483 struct rte_flow *flow = dev_flow->flow;
484 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
485 int rss_request_inner = flow->rss.level >= 2;
487 /* Check RSS hash level for tunnel. */
488 if (tunnel && rss_request_inner)
489 hash_fields |= IBV_RX_HASH_INNER;
490 else if (tunnel || rss_request_inner)
493 /* Check if requested layer matches RSS hash fields. */
494 if (!(flow->rss.types & layer_types))
500 * Lookup and set the ptype in the data Rx part. A single Ptype can be used,
501 * if several tunnel rules are used on this queue, the tunnel ptype will be
505 * Rx queue to update.
508 flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl)
511 uint32_t tunnel_ptype = 0;
513 /* Look up for the ptype to use. */
514 for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) {
515 if (!rxq_ctrl->flow_tunnels_n[i])
518 tunnel_ptype = tunnels_info[i].ptype;
524 rxq_ctrl->rxq.tunnel = tunnel_ptype;
528 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive
532 * Pointer to the Ethernet device structure.
533 * @param[in] dev_flow
534 * Pointer to device flow structure.
537 flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
539 struct priv *priv = dev->data->dev_private;
540 struct rte_flow *flow = dev_flow->flow;
541 const int mark = !!(flow->actions &
542 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
543 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
546 for (i = 0; i != flow->rss.queue_num; ++i) {
547 int idx = (*flow->queue)[i];
548 struct mlx5_rxq_ctrl *rxq_ctrl =
549 container_of((*priv->rxqs)[idx],
550 struct mlx5_rxq_ctrl, rxq);
553 rxq_ctrl->rxq.mark = 1;
554 rxq_ctrl->flow_mark_n++;
559 /* Increase the counter matching the flow. */
560 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
561 if ((tunnels_info[j].tunnel &
563 tunnels_info[j].tunnel) {
564 rxq_ctrl->flow_tunnels_n[j]++;
568 flow_rxq_tunnel_ptype_update(rxq_ctrl);
574 * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow
577 * Pointer to the Ethernet device structure.
579 * Pointer to flow structure.
582 flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow)
584 struct mlx5_flow *dev_flow;
586 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
587 flow_drv_rxq_flags_set(dev, dev_flow);
591 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
592 * device flow if no other flow uses it with the same kind of request.
595 * Pointer to Ethernet device.
596 * @param[in] dev_flow
597 * Pointer to the device flow.
600 flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow)
602 struct priv *priv = dev->data->dev_private;
603 struct rte_flow *flow = dev_flow->flow;
604 const int mark = !!(flow->actions &
605 (MLX5_FLOW_ACTION_FLAG | MLX5_FLOW_ACTION_MARK));
606 const int tunnel = !!(dev_flow->layers & MLX5_FLOW_LAYER_TUNNEL);
609 assert(dev->data->dev_started);
610 for (i = 0; i != flow->rss.queue_num; ++i) {
611 int idx = (*flow->queue)[i];
612 struct mlx5_rxq_ctrl *rxq_ctrl =
613 container_of((*priv->rxqs)[idx],
614 struct mlx5_rxq_ctrl, rxq);
617 rxq_ctrl->flow_mark_n--;
618 rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n;
623 /* Decrease the counter matching the flow. */
624 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) {
625 if ((tunnels_info[j].tunnel &
627 tunnels_info[j].tunnel) {
628 rxq_ctrl->flow_tunnels_n[j]--;
632 flow_rxq_tunnel_ptype_update(rxq_ctrl);
638 * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the
639 * @p flow if no other flow uses it with the same kind of request.
642 * Pointer to Ethernet device.
644 * Pointer to the flow.
647 flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow)
649 struct mlx5_flow *dev_flow;
651 LIST_FOREACH(dev_flow, &flow->dev_flows, next)
652 flow_drv_rxq_flags_trim(dev, dev_flow);
656 * Clear the Mark/Flag and Tunnel ptype information in all Rx queues.
659 * Pointer to Ethernet device.
662 flow_rxq_flags_clear(struct rte_eth_dev *dev)
664 struct priv *priv = dev->data->dev_private;
667 for (i = 0; i != priv->rxqs_n; ++i) {
668 struct mlx5_rxq_ctrl *rxq_ctrl;
671 if (!(*priv->rxqs)[i])
673 rxq_ctrl = container_of((*priv->rxqs)[i],
674 struct mlx5_rxq_ctrl, rxq);
675 rxq_ctrl->flow_mark_n = 0;
676 rxq_ctrl->rxq.mark = 0;
677 for (j = 0; j != MLX5_FLOW_TUNNEL; ++j)
678 rxq_ctrl->flow_tunnels_n[j] = 0;
679 rxq_ctrl->rxq.tunnel = 0;
684 * Validate the flag action.
686 * @param[in] action_flags
687 * Bit-fields that holds the actions detected until now.
689 * Attributes of flow that includes this action.
691 * Pointer to error structure.
694 * 0 on success, a negative errno value otherwise and rte_errno is set.
697 mlx5_flow_validate_action_flag(uint64_t action_flags,
698 const struct rte_flow_attr *attr,
699 struct rte_flow_error *error)
702 if (action_flags & MLX5_FLOW_ACTION_DROP)
703 return rte_flow_error_set(error, EINVAL,
704 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
705 "can't drop and flag in same flow");
706 if (action_flags & MLX5_FLOW_ACTION_MARK)
707 return rte_flow_error_set(error, EINVAL,
708 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
709 "can't mark and flag in same flow");
710 if (action_flags & MLX5_FLOW_ACTION_FLAG)
711 return rte_flow_error_set(error, EINVAL,
712 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
714 " actions in same flow");
716 return rte_flow_error_set(error, ENOTSUP,
717 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
718 "flag action not supported for "
724 * Validate the mark action.
727 * Pointer to the queue action.
728 * @param[in] action_flags
729 * Bit-fields that holds the actions detected until now.
731 * Attributes of flow that includes this action.
733 * Pointer to error structure.
736 * 0 on success, a negative errno value otherwise and rte_errno is set.
739 mlx5_flow_validate_action_mark(const struct rte_flow_action *action,
740 uint64_t action_flags,
741 const struct rte_flow_attr *attr,
742 struct rte_flow_error *error)
744 const struct rte_flow_action_mark *mark = action->conf;
747 return rte_flow_error_set(error, EINVAL,
748 RTE_FLOW_ERROR_TYPE_ACTION,
750 "configuration cannot be null");
751 if (mark->id >= MLX5_FLOW_MARK_MAX)
752 return rte_flow_error_set(error, EINVAL,
753 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
755 "mark id must in 0 <= id < "
756 RTE_STR(MLX5_FLOW_MARK_MAX));
757 if (action_flags & MLX5_FLOW_ACTION_DROP)
758 return rte_flow_error_set(error, EINVAL,
759 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
760 "can't drop and mark in same flow");
761 if (action_flags & MLX5_FLOW_ACTION_FLAG)
762 return rte_flow_error_set(error, EINVAL,
763 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
764 "can't flag and mark in same flow");
765 if (action_flags & MLX5_FLOW_ACTION_MARK)
766 return rte_flow_error_set(error, EINVAL,
767 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
768 "can't have 2 mark actions in same"
771 return rte_flow_error_set(error, ENOTSUP,
772 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
773 "mark action not supported for "
779 * Validate the drop action.
781 * @param[in] action_flags
782 * Bit-fields that holds the actions detected until now.
784 * Attributes of flow that includes this action.
786 * Pointer to error structure.
789 * 0 on success, a negative errno value otherwise and rte_ernno is set.
792 mlx5_flow_validate_action_drop(uint64_t action_flags,
793 const struct rte_flow_attr *attr,
794 struct rte_flow_error *error)
796 if (action_flags & MLX5_FLOW_ACTION_FLAG)
797 return rte_flow_error_set(error, EINVAL,
798 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
799 "can't drop and flag in same flow");
800 if (action_flags & MLX5_FLOW_ACTION_MARK)
801 return rte_flow_error_set(error, EINVAL,
802 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
803 "can't drop and mark in same flow");
804 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
805 return rte_flow_error_set(error, EINVAL,
806 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
807 "can't have 2 fate actions in"
810 return rte_flow_error_set(error, ENOTSUP,
811 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
812 "drop action not supported for "
818 * Validate the queue action.
821 * Pointer to the queue action.
822 * @param[in] action_flags
823 * Bit-fields that holds the actions detected until now.
825 * Pointer to the Ethernet device structure.
827 * Attributes of flow that includes this action.
829 * Pointer to error structure.
832 * 0 on success, a negative errno value otherwise and rte_ernno is set.
835 mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
836 uint64_t action_flags,
837 struct rte_eth_dev *dev,
838 const struct rte_flow_attr *attr,
839 struct rte_flow_error *error)
841 struct priv *priv = dev->data->dev_private;
842 const struct rte_flow_action_queue *queue = action->conf;
844 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
845 return rte_flow_error_set(error, EINVAL,
846 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
847 "can't have 2 fate actions in"
849 if (queue->index >= priv->rxqs_n)
850 return rte_flow_error_set(error, EINVAL,
851 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
853 "queue index out of range");
854 if (!(*priv->rxqs)[queue->index])
855 return rte_flow_error_set(error, EINVAL,
856 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
858 "queue is not configured");
860 return rte_flow_error_set(error, ENOTSUP,
861 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
862 "queue action not supported for "
868 * Validate the rss action.
871 * Pointer to the queue action.
872 * @param[in] action_flags
873 * Bit-fields that holds the actions detected until now.
875 * Pointer to the Ethernet device structure.
877 * Attributes of flow that includes this action.
879 * Pointer to error structure.
882 * 0 on success, a negative errno value otherwise and rte_ernno is set.
885 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
886 uint64_t action_flags,
887 struct rte_eth_dev *dev,
888 const struct rte_flow_attr *attr,
889 struct rte_flow_error *error)
891 struct priv *priv = dev->data->dev_private;
892 const struct rte_flow_action_rss *rss = action->conf;
895 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
896 return rte_flow_error_set(error, EINVAL,
897 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
898 "can't have 2 fate actions"
900 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
901 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
902 return rte_flow_error_set(error, ENOTSUP,
903 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
905 "RSS hash function not supported");
906 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
911 return rte_flow_error_set(error, ENOTSUP,
912 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
914 "tunnel RSS is not supported");
915 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
916 if (rss->key_len == 0 && rss->key != NULL)
917 return rte_flow_error_set(error, ENOTSUP,
918 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
920 "RSS hash key length 0");
921 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
922 return rte_flow_error_set(error, ENOTSUP,
923 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
925 "RSS hash key too small");
926 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
927 return rte_flow_error_set(error, ENOTSUP,
928 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
930 "RSS hash key too large");
931 if (rss->queue_num > priv->config.ind_table_max_size)
932 return rte_flow_error_set(error, ENOTSUP,
933 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
935 "number of queues too large");
936 if (rss->types & MLX5_RSS_HF_MASK)
937 return rte_flow_error_set(error, ENOTSUP,
938 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
940 "some RSS protocols are not"
942 for (i = 0; i != rss->queue_num; ++i) {
943 if (!(*priv->rxqs)[rss->queue[i]])
944 return rte_flow_error_set
945 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
946 &rss->queue[i], "queue is not configured");
949 return rte_flow_error_set(error, ENOTSUP,
950 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
951 "rss action not supported for "
957 * Validate the count action.
960 * Pointer to the Ethernet device structure.
962 * Attributes of flow that includes this action.
964 * Pointer to error structure.
967 * 0 on success, a negative errno value otherwise and rte_ernno is set.
970 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
971 const struct rte_flow_attr *attr,
972 struct rte_flow_error *error)
975 return rte_flow_error_set(error, ENOTSUP,
976 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
977 "count action not supported for "
983 * Verify the @p attributes will be correctly understood by the NIC and store
984 * them in the @p flow if everything is correct.
987 * Pointer to the Ethernet device structure.
988 * @param[in] attributes
989 * Pointer to flow attributes
991 * Pointer to error structure.
994 * 0 on success, a negative errno value otherwise and rte_errno is set.
997 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
998 const struct rte_flow_attr *attributes,
999 struct rte_flow_error *error)
1001 struct priv *priv = dev->data->dev_private;
1002 uint32_t priority_max = priv->config.flow_prio - 1;
1004 if (attributes->group)
1005 return rte_flow_error_set(error, ENOTSUP,
1006 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1007 NULL, "groups is not supported");
1008 if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
1009 attributes->priority >= priority_max)
1010 return rte_flow_error_set(error, ENOTSUP,
1011 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1012 NULL, "priority out of range");
1013 if (attributes->egress)
1014 return rte_flow_error_set(error, ENOTSUP,
1015 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1016 "egress is not supported");
1017 if (attributes->transfer)
1018 return rte_flow_error_set(error, ENOTSUP,
1019 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1020 NULL, "transfer is not supported");
1021 if (!attributes->ingress)
1022 return rte_flow_error_set(error, EINVAL,
1023 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1025 "ingress attribute is mandatory");
1030 * Validate Ethernet item.
1033 * Item specification.
1034 * @param[in] item_flags
1035 * Bit-fields that holds the items detected until now.
1037 * Pointer to error structure.
1040 * 0 on success, a negative errno value otherwise and rte_errno is set.
1043 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1044 uint64_t item_flags,
1045 struct rte_flow_error *error)
1047 const struct rte_flow_item_eth *mask = item->mask;
1048 const struct rte_flow_item_eth nic_mask = {
1049 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1050 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1051 .type = RTE_BE16(0xffff),
1054 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1055 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1056 MLX5_FLOW_LAYER_OUTER_L2;
1058 if (item_flags & ethm)
1059 return rte_flow_error_set(error, ENOTSUP,
1060 RTE_FLOW_ERROR_TYPE_ITEM, item,
1061 "multiple L2 layers not supported");
1063 mask = &rte_flow_item_eth_mask;
1064 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1065 (const uint8_t *)&nic_mask,
1066 sizeof(struct rte_flow_item_eth),
1072 * Validate VLAN item.
1075 * Item specification.
1076 * @param[in] item_flags
1077 * Bit-fields that holds the items detected until now.
1079 * Pointer to error structure.
1082 * 0 on success, a negative errno value otherwise and rte_errno is set.
1085 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1086 uint64_t item_flags,
1087 struct rte_flow_error *error)
1089 const struct rte_flow_item_vlan *spec = item->spec;
1090 const struct rte_flow_item_vlan *mask = item->mask;
1091 const struct rte_flow_item_vlan nic_mask = {
1092 .tci = RTE_BE16(0x0fff),
1093 .inner_type = RTE_BE16(0xffff),
1095 uint16_t vlan_tag = 0;
1096 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1098 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1099 MLX5_FLOW_LAYER_INNER_L4) :
1100 (MLX5_FLOW_LAYER_OUTER_L3 |
1101 MLX5_FLOW_LAYER_OUTER_L4);
1102 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1103 MLX5_FLOW_LAYER_OUTER_VLAN;
1105 if (item_flags & vlanm)
1106 return rte_flow_error_set(error, EINVAL,
1107 RTE_FLOW_ERROR_TYPE_ITEM, item,
1108 "multiple VLAN layers not supported");
1109 else if ((item_flags & l34m) != 0)
1110 return rte_flow_error_set(error, EINVAL,
1111 RTE_FLOW_ERROR_TYPE_ITEM, item,
1112 "L2 layer cannot follow L3/L4 layer");
1114 mask = &rte_flow_item_vlan_mask;
1115 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1116 (const uint8_t *)&nic_mask,
1117 sizeof(struct rte_flow_item_vlan),
1122 vlan_tag = spec->tci;
1123 vlan_tag &= mask->tci;
1126 * From verbs perspective an empty VLAN is equivalent
1127 * to a packet without VLAN layer.
1130 return rte_flow_error_set(error, EINVAL,
1131 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1133 "VLAN cannot be empty");
1138 * Validate IPV4 item.
1141 * Item specification.
1142 * @param[in] item_flags
1143 * Bit-fields that holds the items detected until now.
1144 * @param[in] acc_mask
1145 * Acceptable mask, if NULL default internal default mask
1146 * will be used to check whether item fields are supported.
1148 * Pointer to error structure.
1151 * 0 on success, a negative errno value otherwise and rte_errno is set.
1154 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
1155 uint64_t item_flags,
1156 const struct rte_flow_item_ipv4 *acc_mask,
1157 struct rte_flow_error *error)
1159 const struct rte_flow_item_ipv4 *mask = item->mask;
1160 const struct rte_flow_item_ipv4 nic_mask = {
1162 .src_addr = RTE_BE32(0xffffffff),
1163 .dst_addr = RTE_BE32(0xffffffff),
1164 .type_of_service = 0xff,
1165 .next_proto_id = 0xff,
1168 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1169 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1170 MLX5_FLOW_LAYER_OUTER_L3;
1171 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1172 MLX5_FLOW_LAYER_OUTER_L4;
1175 if (item_flags & l3m)
1176 return rte_flow_error_set(error, ENOTSUP,
1177 RTE_FLOW_ERROR_TYPE_ITEM, item,
1178 "multiple L3 layers not supported");
1179 else if (item_flags & l4m)
1180 return rte_flow_error_set(error, EINVAL,
1181 RTE_FLOW_ERROR_TYPE_ITEM, item,
1182 "L3 cannot follow an L4 layer.");
1184 mask = &rte_flow_item_ipv4_mask;
1185 else if (mask->hdr.next_proto_id != 0 &&
1186 mask->hdr.next_proto_id != 0xff)
1187 return rte_flow_error_set(error, EINVAL,
1188 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1189 "partial mask is not supported"
1191 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1192 acc_mask ? (const uint8_t *)acc_mask
1193 : (const uint8_t *)&nic_mask,
1194 sizeof(struct rte_flow_item_ipv4),
1202 * Validate IPV6 item.
1205 * Item specification.
1206 * @param[in] item_flags
1207 * Bit-fields that holds the items detected until now.
1208 * @param[in] acc_mask
1209 * Acceptable mask, if NULL default internal default mask
1210 * will be used to check whether item fields are supported.
1212 * Pointer to error structure.
1215 * 0 on success, a negative errno value otherwise and rte_errno is set.
1218 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
1219 uint64_t item_flags,
1220 const struct rte_flow_item_ipv6 *acc_mask,
1221 struct rte_flow_error *error)
1223 const struct rte_flow_item_ipv6 *mask = item->mask;
1224 const struct rte_flow_item_ipv6 nic_mask = {
1227 "\xff\xff\xff\xff\xff\xff\xff\xff"
1228 "\xff\xff\xff\xff\xff\xff\xff\xff",
1230 "\xff\xff\xff\xff\xff\xff\xff\xff"
1231 "\xff\xff\xff\xff\xff\xff\xff\xff",
1232 .vtc_flow = RTE_BE32(0xffffffff),
1237 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1238 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1239 MLX5_FLOW_LAYER_OUTER_L3;
1240 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1241 MLX5_FLOW_LAYER_OUTER_L4;
1244 if (item_flags & l3m)
1245 return rte_flow_error_set(error, ENOTSUP,
1246 RTE_FLOW_ERROR_TYPE_ITEM, item,
1247 "multiple L3 layers not supported");
1248 else if (item_flags & l4m)
1249 return rte_flow_error_set(error, EINVAL,
1250 RTE_FLOW_ERROR_TYPE_ITEM, item,
1251 "L3 cannot follow an L4 layer.");
1253 mask = &rte_flow_item_ipv6_mask;
1254 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1255 acc_mask ? (const uint8_t *)acc_mask
1256 : (const uint8_t *)&nic_mask,
1257 sizeof(struct rte_flow_item_ipv6),
1265 * Validate UDP item.
1268 * Item specification.
1269 * @param[in] item_flags
1270 * Bit-fields that holds the items detected until now.
1271 * @param[in] target_protocol
1272 * The next protocol in the previous item.
1273 * @param[in] flow_mask
1274 * mlx5 flow-specific (TCF, DV, verbs, etc.) supported header fields mask.
1276 * Pointer to error structure.
1279 * 0 on success, a negative errno value otherwise and rte_errno is set.
1282 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
1283 uint64_t item_flags,
1284 uint8_t target_protocol,
1285 struct rte_flow_error *error)
1287 const struct rte_flow_item_udp *mask = item->mask;
1288 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1289 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1290 MLX5_FLOW_LAYER_OUTER_L3;
1291 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1292 MLX5_FLOW_LAYER_OUTER_L4;
1295 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
1296 return rte_flow_error_set(error, EINVAL,
1297 RTE_FLOW_ERROR_TYPE_ITEM, item,
1298 "protocol filtering not compatible"
1300 if (!(item_flags & l3m))
1301 return rte_flow_error_set(error, EINVAL,
1302 RTE_FLOW_ERROR_TYPE_ITEM, item,
1303 "L3 is mandatory to filter on L4");
1304 if (item_flags & l4m)
1305 return rte_flow_error_set(error, EINVAL,
1306 RTE_FLOW_ERROR_TYPE_ITEM, item,
1307 "multiple L4 layers not supported");
1309 mask = &rte_flow_item_udp_mask;
1310 ret = mlx5_flow_item_acceptable
1311 (item, (const uint8_t *)mask,
1312 (const uint8_t *)&rte_flow_item_udp_mask,
1313 sizeof(struct rte_flow_item_udp), error);
1320 * Validate TCP item.
1323 * Item specification.
1324 * @param[in] item_flags
1325 * Bit-fields that holds the items detected until now.
1326 * @param[in] target_protocol
1327 * The next protocol in the previous item.
1329 * Pointer to error structure.
1332 * 0 on success, a negative errno value otherwise and rte_errno is set.
1335 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
1336 uint64_t item_flags,
1337 uint8_t target_protocol,
1338 const struct rte_flow_item_tcp *flow_mask,
1339 struct rte_flow_error *error)
1341 const struct rte_flow_item_tcp *mask = item->mask;
1342 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1343 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1344 MLX5_FLOW_LAYER_OUTER_L3;
1345 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1346 MLX5_FLOW_LAYER_OUTER_L4;
1350 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
1351 return rte_flow_error_set(error, EINVAL,
1352 RTE_FLOW_ERROR_TYPE_ITEM, item,
1353 "protocol filtering not compatible"
1355 if (!(item_flags & l3m))
1356 return rte_flow_error_set(error, EINVAL,
1357 RTE_FLOW_ERROR_TYPE_ITEM, item,
1358 "L3 is mandatory to filter on L4");
1359 if (item_flags & l4m)
1360 return rte_flow_error_set(error, EINVAL,
1361 RTE_FLOW_ERROR_TYPE_ITEM, item,
1362 "multiple L4 layers not supported");
1364 mask = &rte_flow_item_tcp_mask;
1365 ret = mlx5_flow_item_acceptable
1366 (item, (const uint8_t *)mask,
1367 (const uint8_t *)flow_mask,
1368 sizeof(struct rte_flow_item_tcp), error);
1375 * Validate VXLAN item.
1378 * Item specification.
1379 * @param[in] item_flags
1380 * Bit-fields that holds the items detected until now.
1381 * @param[in] target_protocol
1382 * The next protocol in the previous item.
1384 * Pointer to error structure.
1387 * 0 on success, a negative errno value otherwise and rte_errno is set.
1390 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
1391 uint64_t item_flags,
1392 struct rte_flow_error *error)
1394 const struct rte_flow_item_vxlan *spec = item->spec;
1395 const struct rte_flow_item_vxlan *mask = item->mask;
1400 } id = { .vlan_id = 0, };
1401 uint32_t vlan_id = 0;
1404 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1405 return rte_flow_error_set(error, ENOTSUP,
1406 RTE_FLOW_ERROR_TYPE_ITEM, item,
1407 "multiple tunnel layers not"
1410 * Verify only UDPv4 is present as defined in
1411 * https://tools.ietf.org/html/rfc7348
1413 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1414 return rte_flow_error_set(error, EINVAL,
1415 RTE_FLOW_ERROR_TYPE_ITEM, item,
1416 "no outer UDP layer found");
1418 mask = &rte_flow_item_vxlan_mask;
1419 ret = mlx5_flow_item_acceptable
1420 (item, (const uint8_t *)mask,
1421 (const uint8_t *)&rte_flow_item_vxlan_mask,
1422 sizeof(struct rte_flow_item_vxlan),
1427 memcpy(&id.vni[1], spec->vni, 3);
1428 vlan_id = id.vlan_id;
1429 memcpy(&id.vni[1], mask->vni, 3);
1430 vlan_id &= id.vlan_id;
1433 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if
1434 * only this layer is defined in the Verbs specification it is
1435 * interpreted as wildcard and all packets will match this
1436 * rule, if it follows a full stack layer (ex: eth / ipv4 /
1437 * udp), all packets matching the layers before will also
1438 * match this rule. To avoid such situation, VNI 0 is
1439 * currently refused.
1442 return rte_flow_error_set(error, ENOTSUP,
1443 RTE_FLOW_ERROR_TYPE_ITEM, item,
1444 "VXLAN vni cannot be 0");
1445 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1446 return rte_flow_error_set(error, ENOTSUP,
1447 RTE_FLOW_ERROR_TYPE_ITEM, item,
1448 "VXLAN tunnel must be fully defined");
1453 * Validate VXLAN_GPE item.
1456 * Item specification.
1457 * @param[in] item_flags
1458 * Bit-fields that holds the items detected until now.
1460 * Pointer to the private data structure.
1461 * @param[in] target_protocol
1462 * The next protocol in the previous item.
1464 * Pointer to error structure.
1467 * 0 on success, a negative errno value otherwise and rte_errno is set.
1470 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1471 uint64_t item_flags,
1472 struct rte_eth_dev *dev,
1473 struct rte_flow_error *error)
1475 struct priv *priv = dev->data->dev_private;
1476 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1477 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1482 } id = { .vlan_id = 0, };
1483 uint32_t vlan_id = 0;
1485 if (!priv->config.l3_vxlan_en)
1486 return rte_flow_error_set(error, ENOTSUP,
1487 RTE_FLOW_ERROR_TYPE_ITEM, item,
1488 "L3 VXLAN is not enabled by device"
1489 " parameter and/or not configured in"
1491 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1492 return rte_flow_error_set(error, ENOTSUP,
1493 RTE_FLOW_ERROR_TYPE_ITEM, item,
1494 "multiple tunnel layers not"
1497 * Verify only UDPv4 is present as defined in
1498 * https://tools.ietf.org/html/rfc7348
1500 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1501 return rte_flow_error_set(error, EINVAL,
1502 RTE_FLOW_ERROR_TYPE_ITEM, item,
1503 "no outer UDP layer found");
1505 mask = &rte_flow_item_vxlan_gpe_mask;
1506 ret = mlx5_flow_item_acceptable
1507 (item, (const uint8_t *)mask,
1508 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1509 sizeof(struct rte_flow_item_vxlan_gpe),
1515 return rte_flow_error_set(error, ENOTSUP,
1516 RTE_FLOW_ERROR_TYPE_ITEM,
1518 "VxLAN-GPE protocol"
1520 memcpy(&id.vni[1], spec->vni, 3);
1521 vlan_id = id.vlan_id;
1522 memcpy(&id.vni[1], mask->vni, 3);
1523 vlan_id &= id.vlan_id;
1526 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1527 * layer is defined in the Verbs specification it is interpreted as
1528 * wildcard and all packets will match this rule, if it follows a full
1529 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1530 * before will also match this rule. To avoid such situation, VNI 0
1531 * is currently refused.
1534 return rte_flow_error_set(error, ENOTSUP,
1535 RTE_FLOW_ERROR_TYPE_ITEM, item,
1536 "VXLAN-GPE vni cannot be 0");
1537 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1538 return rte_flow_error_set(error, ENOTSUP,
1539 RTE_FLOW_ERROR_TYPE_ITEM, item,
1540 "VXLAN-GPE tunnel must be fully"
1546 * Validate GRE item.
1549 * Item specification.
1550 * @param[in] item_flags
1551 * Bit flags to mark detected items.
1552 * @param[in] target_protocol
1553 * The next protocol in the previous item.
1555 * Pointer to error structure.
1558 * 0 on success, a negative errno value otherwise and rte_errno is set.
1561 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
1562 uint64_t item_flags,
1563 uint8_t target_protocol,
1564 struct rte_flow_error *error)
1566 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
1567 const struct rte_flow_item_gre *mask = item->mask;
1570 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
1571 return rte_flow_error_set(error, EINVAL,
1572 RTE_FLOW_ERROR_TYPE_ITEM, item,
1573 "protocol filtering not compatible"
1574 " with this GRE layer");
1575 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1576 return rte_flow_error_set(error, ENOTSUP,
1577 RTE_FLOW_ERROR_TYPE_ITEM, item,
1578 "multiple tunnel layers not"
1580 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
1581 return rte_flow_error_set(error, ENOTSUP,
1582 RTE_FLOW_ERROR_TYPE_ITEM, item,
1583 "L3 Layer is missing");
1585 mask = &rte_flow_item_gre_mask;
1586 ret = mlx5_flow_item_acceptable
1587 (item, (const uint8_t *)mask,
1588 (const uint8_t *)&rte_flow_item_gre_mask,
1589 sizeof(struct rte_flow_item_gre), error);
1592 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
1593 if (spec && (spec->protocol & mask->protocol))
1594 return rte_flow_error_set(error, ENOTSUP,
1595 RTE_FLOW_ERROR_TYPE_ITEM, item,
1596 "without MPLS support the"
1597 " specification cannot be used for"
1604 * Validate MPLS item.
1607 * Pointer to the rte_eth_dev structure.
1609 * Item specification.
1610 * @param[in] item_flags
1611 * Bit-fields that holds the items detected until now.
1612 * @param[in] prev_layer
1613 * The protocol layer indicated in previous item.
1615 * Pointer to error structure.
1618 * 0 on success, a negative errno value otherwise and rte_errno is set.
1621 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
1622 const struct rte_flow_item *item __rte_unused,
1623 uint64_t item_flags __rte_unused,
1624 uint64_t prev_layer __rte_unused,
1625 struct rte_flow_error *error)
1627 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1628 const struct rte_flow_item_mpls *mask = item->mask;
1629 struct priv *priv = dev->data->dev_private;
1632 if (!priv->config.mpls_en)
1633 return rte_flow_error_set(error, ENOTSUP,
1634 RTE_FLOW_ERROR_TYPE_ITEM, item,
1635 "MPLS not supported or"
1636 " disabled in firmware"
1638 /* MPLS over IP, UDP, GRE is allowed */
1639 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
1640 MLX5_FLOW_LAYER_OUTER_L4_UDP |
1641 MLX5_FLOW_LAYER_GRE)))
1642 return rte_flow_error_set(error, EINVAL,
1643 RTE_FLOW_ERROR_TYPE_ITEM, item,
1644 "protocol filtering not compatible"
1645 " with MPLS layer");
1646 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
1647 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
1648 !(item_flags & MLX5_FLOW_LAYER_GRE))
1649 return rte_flow_error_set(error, ENOTSUP,
1650 RTE_FLOW_ERROR_TYPE_ITEM, item,
1651 "multiple tunnel layers not"
1654 mask = &rte_flow_item_mpls_mask;
1655 ret = mlx5_flow_item_acceptable
1656 (item, (const uint8_t *)mask,
1657 (const uint8_t *)&rte_flow_item_mpls_mask,
1658 sizeof(struct rte_flow_item_mpls), error);
1663 return rte_flow_error_set(error, ENOTSUP,
1664 RTE_FLOW_ERROR_TYPE_ITEM, item,
1665 "MPLS is not supported by Verbs, please"
1670 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
1671 const struct rte_flow_attr *attr __rte_unused,
1672 const struct rte_flow_item items[] __rte_unused,
1673 const struct rte_flow_action actions[] __rte_unused,
1674 struct rte_flow_error *error __rte_unused)
1676 rte_errno = ENOTSUP;
1680 static struct mlx5_flow *
1681 flow_null_prepare(const struct rte_flow_attr *attr __rte_unused,
1682 const struct rte_flow_item items[] __rte_unused,
1683 const struct rte_flow_action actions[] __rte_unused,
1684 struct rte_flow_error *error __rte_unused)
1686 rte_errno = ENOTSUP;
1691 flow_null_translate(struct rte_eth_dev *dev __rte_unused,
1692 struct mlx5_flow *dev_flow __rte_unused,
1693 const struct rte_flow_attr *attr __rte_unused,
1694 const struct rte_flow_item items[] __rte_unused,
1695 const struct rte_flow_action actions[] __rte_unused,
1696 struct rte_flow_error *error __rte_unused)
1698 rte_errno = ENOTSUP;
1703 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
1704 struct rte_flow *flow __rte_unused,
1705 struct rte_flow_error *error __rte_unused)
1707 rte_errno = ENOTSUP;
1712 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
1713 struct rte_flow *flow __rte_unused)
1718 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
1719 struct rte_flow *flow __rte_unused)
1724 flow_null_query(struct rte_eth_dev *dev __rte_unused,
1725 struct rte_flow *flow __rte_unused,
1726 const struct rte_flow_action *actions __rte_unused,
1727 void *data __rte_unused,
1728 struct rte_flow_error *error __rte_unused)
1730 rte_errno = ENOTSUP;
1734 /* Void driver to protect from null pointer reference. */
1735 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
1736 .validate = flow_null_validate,
1737 .prepare = flow_null_prepare,
1738 .translate = flow_null_translate,
1739 .apply = flow_null_apply,
1740 .remove = flow_null_remove,
1741 .destroy = flow_null_destroy,
1742 .query = flow_null_query,
1746 * Select flow driver type according to flow attributes and device
1750 * Pointer to the dev structure.
1752 * Pointer to the flow attributes.
1755 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
1757 static enum mlx5_flow_drv_type
1758 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
1760 struct priv *priv = dev->data->dev_private;
1761 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
1764 type = MLX5_FLOW_TYPE_TCF;
1766 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
1767 MLX5_FLOW_TYPE_VERBS;
1771 #define flow_get_drv_ops(type) flow_drv_ops[type]
1774 * Flow driver validation API. This abstracts calling driver specific functions.
1775 * The type of flow driver is determined according to flow attributes.
1778 * Pointer to the dev structure.
1780 * Pointer to the flow attributes.
1782 * Pointer to the list of items.
1783 * @param[in] actions
1784 * Pointer to the list of actions.
1786 * Pointer to the error structure.
1789 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1792 flow_drv_validate(struct rte_eth_dev *dev,
1793 const struct rte_flow_attr *attr,
1794 const struct rte_flow_item items[],
1795 const struct rte_flow_action actions[],
1796 struct rte_flow_error *error)
1798 const struct mlx5_flow_driver_ops *fops;
1799 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
1801 fops = flow_get_drv_ops(type);
1802 return fops->validate(dev, attr, items, actions, error);
1806 * Flow driver preparation API. This abstracts calling driver specific
1807 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
1808 * calculates the size of memory required for device flow, allocates the memory,
1809 * initializes the device flow and returns the pointer.
1812 * This function initializes device flow structure such as dv, tcf or verbs in
1813 * struct mlx5_flow. However, it is caller's responsibility to initialize the
1814 * rest. For example, adding returning device flow to flow->dev_flow list and
1815 * setting backward reference to the flow should be done out of this function.
1816 * layers field is not filled either.
1819 * Pointer to the flow attributes.
1821 * Pointer to the list of items.
1822 * @param[in] actions
1823 * Pointer to the list of actions.
1825 * Pointer to the error structure.
1828 * Pointer to device flow on success, otherwise NULL and rte_ernno is set.
1830 static inline struct mlx5_flow *
1831 flow_drv_prepare(const struct rte_flow *flow,
1832 const struct rte_flow_attr *attr,
1833 const struct rte_flow_item items[],
1834 const struct rte_flow_action actions[],
1835 struct rte_flow_error *error)
1837 const struct mlx5_flow_driver_ops *fops;
1838 enum mlx5_flow_drv_type type = flow->drv_type;
1840 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1841 fops = flow_get_drv_ops(type);
1842 return fops->prepare(attr, items, actions, error);
1846 * Flow driver translation API. This abstracts calling driver specific
1847 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
1848 * translates a generic flow into a driver flow. flow_drv_prepare() must
1852 * dev_flow->layers could be filled as a result of parsing during translation
1853 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
1854 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
1855 * flow->actions could be overwritten even though all the expanded dev_flows
1856 * have the same actions.
1859 * Pointer to the rte dev structure.
1860 * @param[in, out] dev_flow
1861 * Pointer to the mlx5 flow.
1863 * Pointer to the flow attributes.
1865 * Pointer to the list of items.
1866 * @param[in] actions
1867 * Pointer to the list of actions.
1869 * Pointer to the error structure.
1872 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1875 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
1876 const struct rte_flow_attr *attr,
1877 const struct rte_flow_item items[],
1878 const struct rte_flow_action actions[],
1879 struct rte_flow_error *error)
1881 const struct mlx5_flow_driver_ops *fops;
1882 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
1884 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1885 fops = flow_get_drv_ops(type);
1886 return fops->translate(dev, dev_flow, attr, items, actions, error);
1890 * Flow driver apply API. This abstracts calling driver specific functions.
1891 * Parent flow (rte_flow) should have driver type (drv_type). It applies
1892 * translated driver flows on to device. flow_drv_translate() must precede.
1895 * Pointer to Ethernet device structure.
1896 * @param[in, out] flow
1897 * Pointer to flow structure.
1899 * Pointer to error structure.
1902 * 0 on success, a negative errno value otherwise and rte_errno is set.
1905 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
1906 struct rte_flow_error *error)
1908 const struct mlx5_flow_driver_ops *fops;
1909 enum mlx5_flow_drv_type type = flow->drv_type;
1911 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1912 fops = flow_get_drv_ops(type);
1913 return fops->apply(dev, flow, error);
1917 * Flow driver remove API. This abstracts calling driver specific functions.
1918 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
1919 * on device. All the resources of the flow should be freed by calling
1920 * flow_drv_destroy().
1923 * Pointer to Ethernet device.
1924 * @param[in, out] flow
1925 * Pointer to flow structure.
1928 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
1930 const struct mlx5_flow_driver_ops *fops;
1931 enum mlx5_flow_drv_type type = flow->drv_type;
1933 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1934 fops = flow_get_drv_ops(type);
1935 fops->remove(dev, flow);
1939 * Flow driver destroy API. This abstracts calling driver specific functions.
1940 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
1941 * on device and releases resources of the flow.
1944 * Pointer to Ethernet device.
1945 * @param[in, out] flow
1946 * Pointer to flow structure.
1949 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
1951 const struct mlx5_flow_driver_ops *fops;
1952 enum mlx5_flow_drv_type type = flow->drv_type;
1954 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1955 fops = flow_get_drv_ops(type);
1956 fops->destroy(dev, flow);
1960 * Validate a flow supported by the NIC.
1962 * @see rte_flow_validate()
1966 mlx5_flow_validate(struct rte_eth_dev *dev,
1967 const struct rte_flow_attr *attr,
1968 const struct rte_flow_item items[],
1969 const struct rte_flow_action actions[],
1970 struct rte_flow_error *error)
1974 ret = flow_drv_validate(dev, attr, items, actions, error);
1981 * Get RSS action from the action list.
1983 * @param[in] actions
1984 * Pointer to the list of actions.
1987 * Pointer to the RSS action if exist, else return NULL.
1989 static const struct rte_flow_action_rss*
1990 flow_get_rss_action(const struct rte_flow_action actions[])
1992 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1993 switch (actions->type) {
1994 case RTE_FLOW_ACTION_TYPE_RSS:
1995 return (const struct rte_flow_action_rss *)
2005 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2007 const struct rte_flow_item *item;
2008 unsigned int has_vlan = 0;
2010 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2011 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2017 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2018 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2019 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2020 MLX5_EXPANSION_ROOT_OUTER;
2024 * Create a flow and add it to @p list.
2027 * Pointer to Ethernet device.
2029 * Pointer to a TAILQ flow list.
2031 * Flow rule attributes.
2033 * Pattern specification (list terminated by the END pattern item).
2034 * @param[in] actions
2035 * Associated actions (list terminated by the END action).
2037 * Perform verbose error reporting if not NULL.
2040 * A flow on success, NULL otherwise and rte_errno is set.
2042 static struct rte_flow *
2043 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2044 const struct rte_flow_attr *attr,
2045 const struct rte_flow_item items[],
2046 const struct rte_flow_action actions[],
2047 struct rte_flow_error *error)
2049 struct rte_flow *flow = NULL;
2050 struct mlx5_flow *dev_flow;
2051 const struct rte_flow_action_rss *rss;
2053 struct rte_flow_expand_rss buf;
2054 uint8_t buffer[2048];
2056 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
2061 ret = flow_drv_validate(dev, attr, items, actions, error);
2064 flow_size = sizeof(struct rte_flow);
2065 rss = flow_get_rss_action(actions);
2067 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
2070 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
2071 flow = rte_calloc(__func__, 1, flow_size, 0);
2072 flow->drv_type = flow_get_drv_type(dev, attr);
2073 assert(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
2074 flow->drv_type < MLX5_FLOW_TYPE_MAX);
2075 flow->queue = (void *)(flow + 1);
2076 LIST_INIT(&flow->dev_flows);
2077 if (rss && rss->types) {
2078 unsigned int graph_root;
2080 graph_root = find_graph_root(items, rss->level);
2081 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
2083 mlx5_support_expansion,
2086 (unsigned int)ret < sizeof(expand_buffer.buffer));
2089 buf->entry[0].pattern = (void *)(uintptr_t)items;
2091 for (i = 0; i < buf->entries; ++i) {
2092 dev_flow = flow_drv_prepare(flow, attr, buf->entry[i].pattern,
2096 dev_flow->flow = flow;
2097 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
2098 ret = flow_drv_translate(dev, dev_flow, attr,
2099 buf->entry[i].pattern,
2104 if (dev->data->dev_started) {
2105 ret = flow_drv_apply(dev, flow, error);
2109 TAILQ_INSERT_TAIL(list, flow, next);
2110 flow_rxq_flags_set(dev, flow);
2113 ret = rte_errno; /* Save rte_errno before cleanup. */
2115 flow_drv_destroy(dev, flow);
2117 rte_errno = ret; /* Restore rte_errno. */
2124 * @see rte_flow_create()
2128 mlx5_flow_create(struct rte_eth_dev *dev,
2129 const struct rte_flow_attr *attr,
2130 const struct rte_flow_item items[],
2131 const struct rte_flow_action actions[],
2132 struct rte_flow_error *error)
2134 return flow_list_create(dev,
2135 &((struct priv *)dev->data->dev_private)->flows,
2136 attr, items, actions, error);
2140 * Destroy a flow in a list.
2143 * Pointer to Ethernet device.
2145 * Pointer to a TAILQ flow list.
2150 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2151 struct rte_flow *flow)
2154 * Update RX queue flags only if port is started, otherwise it is
2157 if (dev->data->dev_started)
2158 flow_rxq_flags_trim(dev, flow);
2159 flow_drv_destroy(dev, flow);
2160 TAILQ_REMOVE(list, flow, next);
2161 rte_free(flow->fdir);
2166 * Destroy all flows.
2169 * Pointer to Ethernet device.
2171 * Pointer to a TAILQ flow list.
2174 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
2176 while (!TAILQ_EMPTY(list)) {
2177 struct rte_flow *flow;
2179 flow = TAILQ_FIRST(list);
2180 flow_list_destroy(dev, list, flow);
2188 * Pointer to Ethernet device.
2190 * Pointer to a TAILQ flow list.
2193 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
2195 struct rte_flow *flow;
2197 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next)
2198 flow_drv_remove(dev, flow);
2199 flow_rxq_flags_clear(dev);
2206 * Pointer to Ethernet device.
2208 * Pointer to a TAILQ flow list.
2211 * 0 on success, a negative errno value otherwise and rte_errno is set.
2214 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
2216 struct rte_flow *flow;
2217 struct rte_flow_error error;
2220 TAILQ_FOREACH(flow, list, next) {
2221 ret = flow_drv_apply(dev, flow, &error);
2224 flow_rxq_flags_set(dev, flow);
2228 ret = rte_errno; /* Save rte_errno before cleanup. */
2229 mlx5_flow_stop(dev, list);
2230 rte_errno = ret; /* Restore rte_errno. */
2235 * Verify the flow list is empty
2238 * Pointer to Ethernet device.
2240 * @return the number of flows not released.
2243 mlx5_flow_verify(struct rte_eth_dev *dev)
2245 struct priv *priv = dev->data->dev_private;
2246 struct rte_flow *flow;
2249 TAILQ_FOREACH(flow, &priv->flows, next) {
2250 DRV_LOG(DEBUG, "port %u flow %p still referenced",
2251 dev->data->port_id, (void *)flow);
2258 * Enable a control flow configured from the control plane.
2261 * Pointer to Ethernet device.
2263 * An Ethernet flow spec to apply.
2265 * An Ethernet flow mask to apply.
2267 * A VLAN flow spec to apply.
2269 * A VLAN flow mask to apply.
2272 * 0 on success, a negative errno value otherwise and rte_errno is set.
2275 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
2276 struct rte_flow_item_eth *eth_spec,
2277 struct rte_flow_item_eth *eth_mask,
2278 struct rte_flow_item_vlan *vlan_spec,
2279 struct rte_flow_item_vlan *vlan_mask)
2281 struct priv *priv = dev->data->dev_private;
2282 const struct rte_flow_attr attr = {
2284 .priority = MLX5_FLOW_PRIO_RSVD,
2286 struct rte_flow_item items[] = {
2288 .type = RTE_FLOW_ITEM_TYPE_ETH,
2294 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
2295 RTE_FLOW_ITEM_TYPE_END,
2301 .type = RTE_FLOW_ITEM_TYPE_END,
2304 uint16_t queue[priv->reta_idx_n];
2305 struct rte_flow_action_rss action_rss = {
2306 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
2308 .types = priv->rss_conf.rss_hf,
2309 .key_len = priv->rss_conf.rss_key_len,
2310 .queue_num = priv->reta_idx_n,
2311 .key = priv->rss_conf.rss_key,
2314 struct rte_flow_action actions[] = {
2316 .type = RTE_FLOW_ACTION_TYPE_RSS,
2317 .conf = &action_rss,
2320 .type = RTE_FLOW_ACTION_TYPE_END,
2323 struct rte_flow *flow;
2324 struct rte_flow_error error;
2327 if (!priv->reta_idx_n || !priv->rxqs_n) {
2331 for (i = 0; i != priv->reta_idx_n; ++i)
2332 queue[i] = (*priv->reta_idx)[i];
2333 flow = flow_list_create(dev, &priv->ctrl_flows,
2334 &attr, items, actions, &error);
2341 * Enable a flow control configured from the control plane.
2344 * Pointer to Ethernet device.
2346 * An Ethernet flow spec to apply.
2348 * An Ethernet flow mask to apply.
2351 * 0 on success, a negative errno value otherwise and rte_errno is set.
2354 mlx5_ctrl_flow(struct rte_eth_dev *dev,
2355 struct rte_flow_item_eth *eth_spec,
2356 struct rte_flow_item_eth *eth_mask)
2358 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
2364 * @see rte_flow_destroy()
2368 mlx5_flow_destroy(struct rte_eth_dev *dev,
2369 struct rte_flow *flow,
2370 struct rte_flow_error *error __rte_unused)
2372 struct priv *priv = dev->data->dev_private;
2374 flow_list_destroy(dev, &priv->flows, flow);
2379 * Destroy all flows.
2381 * @see rte_flow_flush()
2385 mlx5_flow_flush(struct rte_eth_dev *dev,
2386 struct rte_flow_error *error __rte_unused)
2388 struct priv *priv = dev->data->dev_private;
2390 mlx5_flow_list_flush(dev, &priv->flows);
2397 * @see rte_flow_isolate()
2401 mlx5_flow_isolate(struct rte_eth_dev *dev,
2403 struct rte_flow_error *error)
2405 struct priv *priv = dev->data->dev_private;
2407 if (dev->data->dev_started) {
2408 rte_flow_error_set(error, EBUSY,
2409 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2411 "port must be stopped first");
2414 priv->isolated = !!enable;
2416 dev->dev_ops = &mlx5_dev_ops_isolate;
2418 dev->dev_ops = &mlx5_dev_ops;
2425 * @see rte_flow_query()
2429 flow_drv_query(struct rte_eth_dev *dev,
2430 struct rte_flow *flow,
2431 const struct rte_flow_action *actions,
2433 struct rte_flow_error *error)
2435 const struct mlx5_flow_driver_ops *fops;
2436 enum mlx5_flow_drv_type ftype = flow->drv_type;
2438 assert(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
2439 fops = flow_get_drv_ops(ftype);
2441 return fops->query(dev, flow, actions, data, error);
2447 * @see rte_flow_query()
2451 mlx5_flow_query(struct rte_eth_dev *dev,
2452 struct rte_flow *flow,
2453 const struct rte_flow_action *actions,
2455 struct rte_flow_error *error)
2459 ret = flow_drv_query(dev, flow, actions, data, error);
2466 * Convert a flow director filter to a generic flow.
2469 * Pointer to Ethernet device.
2470 * @param fdir_filter
2471 * Flow director filter to add.
2473 * Generic flow parameters structure.
2476 * 0 on success, a negative errno value otherwise and rte_errno is set.
2479 flow_fdir_filter_convert(struct rte_eth_dev *dev,
2480 const struct rte_eth_fdir_filter *fdir_filter,
2481 struct mlx5_fdir *attributes)
2483 struct priv *priv = dev->data->dev_private;
2484 const struct rte_eth_fdir_input *input = &fdir_filter->input;
2485 const struct rte_eth_fdir_masks *mask =
2486 &dev->data->dev_conf.fdir_conf.mask;
2488 /* Validate queue number. */
2489 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
2490 DRV_LOG(ERR, "port %u invalid queue number %d",
2491 dev->data->port_id, fdir_filter->action.rx_queue);
2495 attributes->attr.ingress = 1;
2496 attributes->items[0] = (struct rte_flow_item) {
2497 .type = RTE_FLOW_ITEM_TYPE_ETH,
2498 .spec = &attributes->l2,
2499 .mask = &attributes->l2_mask,
2501 switch (fdir_filter->action.behavior) {
2502 case RTE_ETH_FDIR_ACCEPT:
2503 attributes->actions[0] = (struct rte_flow_action){
2504 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
2505 .conf = &attributes->queue,
2508 case RTE_ETH_FDIR_REJECT:
2509 attributes->actions[0] = (struct rte_flow_action){
2510 .type = RTE_FLOW_ACTION_TYPE_DROP,
2514 DRV_LOG(ERR, "port %u invalid behavior %d",
2516 fdir_filter->action.behavior);
2517 rte_errno = ENOTSUP;
2520 attributes->queue.index = fdir_filter->action.rx_queue;
2522 switch (fdir_filter->input.flow_type) {
2523 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2524 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2525 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2526 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2527 .src_addr = input->flow.ip4_flow.src_ip,
2528 .dst_addr = input->flow.ip4_flow.dst_ip,
2529 .time_to_live = input->flow.ip4_flow.ttl,
2530 .type_of_service = input->flow.ip4_flow.tos,
2532 attributes->l3_mask.ipv4.hdr = (struct ipv4_hdr){
2533 .src_addr = mask->ipv4_mask.src_ip,
2534 .dst_addr = mask->ipv4_mask.dst_ip,
2535 .time_to_live = mask->ipv4_mask.ttl,
2536 .type_of_service = mask->ipv4_mask.tos,
2537 .next_proto_id = mask->ipv4_mask.proto,
2539 attributes->items[1] = (struct rte_flow_item){
2540 .type = RTE_FLOW_ITEM_TYPE_IPV4,
2541 .spec = &attributes->l3,
2542 .mask = &attributes->l3_mask,
2545 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2546 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2547 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2548 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2549 .hop_limits = input->flow.ipv6_flow.hop_limits,
2550 .proto = input->flow.ipv6_flow.proto,
2553 memcpy(attributes->l3.ipv6.hdr.src_addr,
2554 input->flow.ipv6_flow.src_ip,
2555 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2556 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2557 input->flow.ipv6_flow.dst_ip,
2558 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2559 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
2560 mask->ipv6_mask.src_ip,
2561 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
2562 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
2563 mask->ipv6_mask.dst_ip,
2564 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
2565 attributes->items[1] = (struct rte_flow_item){
2566 .type = RTE_FLOW_ITEM_TYPE_IPV6,
2567 .spec = &attributes->l3,
2568 .mask = &attributes->l3_mask,
2572 DRV_LOG(ERR, "port %u invalid flow type%d",
2573 dev->data->port_id, fdir_filter->input.flow_type);
2574 rte_errno = ENOTSUP;
2578 switch (fdir_filter->input.flow_type) {
2579 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2580 attributes->l4.udp.hdr = (struct udp_hdr){
2581 .src_port = input->flow.udp4_flow.src_port,
2582 .dst_port = input->flow.udp4_flow.dst_port,
2584 attributes->l4_mask.udp.hdr = (struct udp_hdr){
2585 .src_port = mask->src_port_mask,
2586 .dst_port = mask->dst_port_mask,
2588 attributes->items[2] = (struct rte_flow_item){
2589 .type = RTE_FLOW_ITEM_TYPE_UDP,
2590 .spec = &attributes->l4,
2591 .mask = &attributes->l4_mask,
2594 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2595 attributes->l4.tcp.hdr = (struct tcp_hdr){
2596 .src_port = input->flow.tcp4_flow.src_port,
2597 .dst_port = input->flow.tcp4_flow.dst_port,
2599 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
2600 .src_port = mask->src_port_mask,
2601 .dst_port = mask->dst_port_mask,
2603 attributes->items[2] = (struct rte_flow_item){
2604 .type = RTE_FLOW_ITEM_TYPE_TCP,
2605 .spec = &attributes->l4,
2606 .mask = &attributes->l4_mask,
2609 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2610 attributes->l4.udp.hdr = (struct udp_hdr){
2611 .src_port = input->flow.udp6_flow.src_port,
2612 .dst_port = input->flow.udp6_flow.dst_port,
2614 attributes->l4_mask.udp.hdr = (struct udp_hdr){
2615 .src_port = mask->src_port_mask,
2616 .dst_port = mask->dst_port_mask,
2618 attributes->items[2] = (struct rte_flow_item){
2619 .type = RTE_FLOW_ITEM_TYPE_UDP,
2620 .spec = &attributes->l4,
2621 .mask = &attributes->l4_mask,
2624 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2625 attributes->l4.tcp.hdr = (struct tcp_hdr){
2626 .src_port = input->flow.tcp6_flow.src_port,
2627 .dst_port = input->flow.tcp6_flow.dst_port,
2629 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
2630 .src_port = mask->src_port_mask,
2631 .dst_port = mask->dst_port_mask,
2633 attributes->items[2] = (struct rte_flow_item){
2634 .type = RTE_FLOW_ITEM_TYPE_TCP,
2635 .spec = &attributes->l4,
2636 .mask = &attributes->l4_mask,
2639 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2640 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2643 DRV_LOG(ERR, "port %u invalid flow type%d",
2644 dev->data->port_id, fdir_filter->input.flow_type);
2645 rte_errno = ENOTSUP;
2651 #define FLOW_FDIR_CMP(f1, f2, fld) \
2652 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
2655 * Compare two FDIR flows. If items and actions are identical, the two flows are
2659 * Pointer to Ethernet device.
2661 * FDIR flow to compare.
2663 * FDIR flow to compare.
2666 * Zero on match, 1 otherwise.
2669 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
2671 if (FLOW_FDIR_CMP(f1, f2, attr) ||
2672 FLOW_FDIR_CMP(f1, f2, l2) ||
2673 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
2674 FLOW_FDIR_CMP(f1, f2, l3) ||
2675 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
2676 FLOW_FDIR_CMP(f1, f2, l4) ||
2677 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
2678 FLOW_FDIR_CMP(f1, f2, actions[0].type))
2680 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
2681 FLOW_FDIR_CMP(f1, f2, queue))
2687 * Search device flow list to find out a matched FDIR flow.
2690 * Pointer to Ethernet device.
2692 * FDIR flow to lookup.
2695 * Pointer of flow if found, NULL otherwise.
2697 static struct rte_flow *
2698 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
2700 struct priv *priv = dev->data->dev_private;
2701 struct rte_flow *flow = NULL;
2704 TAILQ_FOREACH(flow, &priv->flows, next) {
2705 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
2706 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
2707 dev->data->port_id, (void *)flow);
2715 * Add new flow director filter and store it in list.
2718 * Pointer to Ethernet device.
2719 * @param fdir_filter
2720 * Flow director filter to add.
2723 * 0 on success, a negative errno value otherwise and rte_errno is set.
2726 flow_fdir_filter_add(struct rte_eth_dev *dev,
2727 const struct rte_eth_fdir_filter *fdir_filter)
2729 struct priv *priv = dev->data->dev_private;
2730 struct mlx5_fdir *fdir_flow;
2731 struct rte_flow *flow;
2734 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
2739 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
2742 flow = flow_fdir_filter_lookup(dev, fdir_flow);
2747 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
2748 fdir_flow->items, fdir_flow->actions, NULL);
2751 assert(!flow->fdir);
2752 flow->fdir = fdir_flow;
2753 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
2754 dev->data->port_id, (void *)flow);
2757 rte_free(fdir_flow);
2762 * Delete specific filter.
2765 * Pointer to Ethernet device.
2766 * @param fdir_filter
2767 * Filter to be deleted.
2770 * 0 on success, a negative errno value otherwise and rte_errno is set.
2773 flow_fdir_filter_delete(struct rte_eth_dev *dev,
2774 const struct rte_eth_fdir_filter *fdir_filter)
2776 struct priv *priv = dev->data->dev_private;
2777 struct rte_flow *flow;
2778 struct mlx5_fdir fdir_flow = {
2783 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
2786 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
2791 flow_list_destroy(dev, &priv->flows, flow);
2792 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
2793 dev->data->port_id, (void *)flow);
2798 * Update queue for specific filter.
2801 * Pointer to Ethernet device.
2802 * @param fdir_filter
2803 * Filter to be updated.
2806 * 0 on success, a negative errno value otherwise and rte_errno is set.
2809 flow_fdir_filter_update(struct rte_eth_dev *dev,
2810 const struct rte_eth_fdir_filter *fdir_filter)
2814 ret = flow_fdir_filter_delete(dev, fdir_filter);
2817 return flow_fdir_filter_add(dev, fdir_filter);
2821 * Flush all filters.
2824 * Pointer to Ethernet device.
2827 flow_fdir_filter_flush(struct rte_eth_dev *dev)
2829 struct priv *priv = dev->data->dev_private;
2831 mlx5_flow_list_flush(dev, &priv->flows);
2835 * Get flow director information.
2838 * Pointer to Ethernet device.
2839 * @param[out] fdir_info
2840 * Resulting flow director information.
2843 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
2845 struct rte_eth_fdir_masks *mask =
2846 &dev->data->dev_conf.fdir_conf.mask;
2848 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
2849 fdir_info->guarant_spc = 0;
2850 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
2851 fdir_info->max_flexpayload = 0;
2852 fdir_info->flow_types_mask[0] = 0;
2853 fdir_info->flex_payload_unit = 0;
2854 fdir_info->max_flex_payload_segment_num = 0;
2855 fdir_info->flex_payload_limit = 0;
2856 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
2860 * Deal with flow director operations.
2863 * Pointer to Ethernet device.
2865 * Operation to perform.
2867 * Pointer to operation-specific structure.
2870 * 0 on success, a negative errno value otherwise and rte_errno is set.
2873 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
2876 enum rte_fdir_mode fdir_mode =
2877 dev->data->dev_conf.fdir_conf.mode;
2879 if (filter_op == RTE_ETH_FILTER_NOP)
2881 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
2882 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
2883 DRV_LOG(ERR, "port %u flow director mode %d not supported",
2884 dev->data->port_id, fdir_mode);
2888 switch (filter_op) {
2889 case RTE_ETH_FILTER_ADD:
2890 return flow_fdir_filter_add(dev, arg);
2891 case RTE_ETH_FILTER_UPDATE:
2892 return flow_fdir_filter_update(dev, arg);
2893 case RTE_ETH_FILTER_DELETE:
2894 return flow_fdir_filter_delete(dev, arg);
2895 case RTE_ETH_FILTER_FLUSH:
2896 flow_fdir_filter_flush(dev);
2898 case RTE_ETH_FILTER_INFO:
2899 flow_fdir_info_get(dev, arg);
2902 DRV_LOG(DEBUG, "port %u unknown operation %u",
2903 dev->data->port_id, filter_op);
2911 * Manage filter operations.
2914 * Pointer to Ethernet device structure.
2915 * @param filter_type
2918 * Operation to perform.
2920 * Pointer to operation-specific structure.
2923 * 0 on success, a negative errno value otherwise and rte_errno is set.
2926 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
2927 enum rte_filter_type filter_type,
2928 enum rte_filter_op filter_op,
2931 switch (filter_type) {
2932 case RTE_ETH_FILTER_GENERIC:
2933 if (filter_op != RTE_ETH_FILTER_GET) {
2937 *(const void **)arg = &mlx5_flow_ops;
2939 case RTE_ETH_FILTER_FDIR:
2940 return flow_fdir_ctrl_func(dev, filter_op, arg);
2942 DRV_LOG(ERR, "port %u filter type (%d) not supported",
2943 dev->data->port_id, filter_type);
2944 rte_errno = ENOTSUP;