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));
353 mlx5_hrxq_drop_release(dev);
356 priority = RTE_DIM(priority_map_3);
359 priority = RTE_DIM(priority_map_5);
364 "port %u verbs maximum priority: %d expected 8/16",
365 dev->data->port_id, priority);
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 mlx5_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 mlx5_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 mlx5_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 mlx5_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 mlx5_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"
850 return rte_flow_error_set(error, EINVAL,
851 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
852 NULL, "No Rx queues configured");
853 if (queue->index >= priv->rxqs_n)
854 return rte_flow_error_set(error, EINVAL,
855 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
857 "queue index out of range");
858 if (!(*priv->rxqs)[queue->index])
859 return rte_flow_error_set(error, EINVAL,
860 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
862 "queue is not configured");
864 return rte_flow_error_set(error, ENOTSUP,
865 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
866 "queue action not supported for "
872 * Validate the rss action.
875 * Pointer to the queue action.
876 * @param[in] action_flags
877 * Bit-fields that holds the actions detected until now.
879 * Pointer to the Ethernet device structure.
881 * Attributes of flow that includes this action.
883 * Pointer to error structure.
886 * 0 on success, a negative errno value otherwise and rte_ernno is set.
889 mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
890 uint64_t action_flags,
891 struct rte_eth_dev *dev,
892 const struct rte_flow_attr *attr,
893 struct rte_flow_error *error)
895 struct mlx5_priv *priv = dev->data->dev_private;
896 const struct rte_flow_action_rss *rss = action->conf;
899 if (action_flags & MLX5_FLOW_FATE_ACTIONS)
900 return rte_flow_error_set(error, EINVAL,
901 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
902 "can't have 2 fate actions"
904 if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT &&
905 rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ)
906 return rte_flow_error_set(error, ENOTSUP,
907 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
909 "RSS hash function not supported");
910 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
915 return rte_flow_error_set(error, ENOTSUP,
916 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
918 "tunnel RSS is not supported");
919 /* allow RSS key_len 0 in case of NULL (default) RSS key. */
920 if (rss->key_len == 0 && rss->key != NULL)
921 return rte_flow_error_set(error, ENOTSUP,
922 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
924 "RSS hash key length 0");
925 if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN)
926 return rte_flow_error_set(error, ENOTSUP,
927 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
929 "RSS hash key too small");
930 if (rss->key_len > MLX5_RSS_HASH_KEY_LEN)
931 return rte_flow_error_set(error, ENOTSUP,
932 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
934 "RSS hash key too large");
935 if (rss->queue_num > priv->config.ind_table_max_size)
936 return rte_flow_error_set(error, ENOTSUP,
937 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
939 "number of queues too large");
940 if (rss->types & MLX5_RSS_HF_MASK)
941 return rte_flow_error_set(error, ENOTSUP,
942 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
944 "some RSS protocols are not"
947 return rte_flow_error_set(error, EINVAL,
948 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
949 NULL, "No Rx queues configured");
951 return rte_flow_error_set(error, EINVAL,
952 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
953 NULL, "No queues configured");
954 for (i = 0; i != rss->queue_num; ++i) {
955 if (!(*priv->rxqs)[rss->queue[i]])
956 return rte_flow_error_set
957 (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF,
958 &rss->queue[i], "queue is not configured");
961 return rte_flow_error_set(error, ENOTSUP,
962 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
963 "rss action not supported for "
969 * Validate the count action.
972 * Pointer to the Ethernet device structure.
974 * Attributes of flow that includes this action.
976 * Pointer to error structure.
979 * 0 on success, a negative errno value otherwise and rte_ernno is set.
982 mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused,
983 const struct rte_flow_attr *attr,
984 struct rte_flow_error *error)
987 return rte_flow_error_set(error, ENOTSUP,
988 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
989 "count action not supported for "
995 * Verify the @p attributes will be correctly understood by the NIC and store
996 * them in the @p flow if everything is correct.
999 * Pointer to the Ethernet device structure.
1000 * @param[in] attributes
1001 * Pointer to flow attributes
1003 * Pointer to error structure.
1006 * 0 on success, a negative errno value otherwise and rte_errno is set.
1009 mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
1010 const struct rte_flow_attr *attributes,
1011 struct rte_flow_error *error)
1013 struct mlx5_priv *priv = dev->data->dev_private;
1014 uint32_t priority_max = priv->config.flow_prio - 1;
1016 if (attributes->group)
1017 return rte_flow_error_set(error, ENOTSUP,
1018 RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
1019 NULL, "groups is not supported");
1020 if (attributes->priority != MLX5_FLOW_PRIO_RSVD &&
1021 attributes->priority >= priority_max)
1022 return rte_flow_error_set(error, ENOTSUP,
1023 RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
1024 NULL, "priority out of range");
1025 if (attributes->egress)
1026 return rte_flow_error_set(error, ENOTSUP,
1027 RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
1028 "egress is not supported");
1029 if (attributes->transfer)
1030 return rte_flow_error_set(error, ENOTSUP,
1031 RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
1032 NULL, "transfer is not supported");
1033 if (!attributes->ingress)
1034 return rte_flow_error_set(error, EINVAL,
1035 RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
1037 "ingress attribute is mandatory");
1042 * Validate Ethernet item.
1045 * Item specification.
1046 * @param[in] item_flags
1047 * Bit-fields that holds the items detected until now.
1049 * Pointer to error structure.
1052 * 0 on success, a negative errno value otherwise and rte_errno is set.
1055 mlx5_flow_validate_item_eth(const struct rte_flow_item *item,
1056 uint64_t item_flags,
1057 struct rte_flow_error *error)
1059 const struct rte_flow_item_eth *mask = item->mask;
1060 const struct rte_flow_item_eth nic_mask = {
1061 .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1062 .src.addr_bytes = "\xff\xff\xff\xff\xff\xff",
1063 .type = RTE_BE16(0xffff),
1066 int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1067 const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 :
1068 MLX5_FLOW_LAYER_OUTER_L2;
1070 if (item_flags & ethm)
1071 return rte_flow_error_set(error, ENOTSUP,
1072 RTE_FLOW_ERROR_TYPE_ITEM, item,
1073 "multiple L2 layers not supported");
1075 mask = &rte_flow_item_eth_mask;
1076 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1077 (const uint8_t *)&nic_mask,
1078 sizeof(struct rte_flow_item_eth),
1084 * Validate VLAN item.
1087 * Item specification.
1088 * @param[in] item_flags
1089 * Bit-fields that holds the items detected until now.
1091 * Pointer to error structure.
1094 * 0 on success, a negative errno value otherwise and rte_errno is set.
1097 mlx5_flow_validate_item_vlan(const struct rte_flow_item *item,
1098 uint64_t item_flags,
1099 struct rte_flow_error *error)
1101 const struct rte_flow_item_vlan *spec = item->spec;
1102 const struct rte_flow_item_vlan *mask = item->mask;
1103 const struct rte_flow_item_vlan nic_mask = {
1104 .tci = RTE_BE16(0x0fff),
1105 .inner_type = RTE_BE16(0xffff),
1107 uint16_t vlan_tag = 0;
1108 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1110 const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 |
1111 MLX5_FLOW_LAYER_INNER_L4) :
1112 (MLX5_FLOW_LAYER_OUTER_L3 |
1113 MLX5_FLOW_LAYER_OUTER_L4);
1114 const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN :
1115 MLX5_FLOW_LAYER_OUTER_VLAN;
1117 if (item_flags & vlanm)
1118 return rte_flow_error_set(error, EINVAL,
1119 RTE_FLOW_ERROR_TYPE_ITEM, item,
1120 "multiple VLAN layers not supported");
1121 else if ((item_flags & l34m) != 0)
1122 return rte_flow_error_set(error, EINVAL,
1123 RTE_FLOW_ERROR_TYPE_ITEM, item,
1124 "L2 layer cannot follow L3/L4 layer");
1126 mask = &rte_flow_item_vlan_mask;
1127 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1128 (const uint8_t *)&nic_mask,
1129 sizeof(struct rte_flow_item_vlan),
1134 vlan_tag = spec->tci;
1135 vlan_tag &= mask->tci;
1138 * From verbs perspective an empty VLAN is equivalent
1139 * to a packet without VLAN layer.
1142 return rte_flow_error_set(error, EINVAL,
1143 RTE_FLOW_ERROR_TYPE_ITEM_SPEC,
1145 "VLAN cannot be empty");
1150 * Validate IPV4 item.
1153 * Item specification.
1154 * @param[in] item_flags
1155 * Bit-fields that holds the items detected until now.
1156 * @param[in] acc_mask
1157 * Acceptable mask, if NULL default internal default mask
1158 * will be used to check whether item fields are supported.
1160 * Pointer to error structure.
1163 * 0 on success, a negative errno value otherwise and rte_errno is set.
1166 mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item,
1167 uint64_t item_flags,
1168 const struct rte_flow_item_ipv4 *acc_mask,
1169 struct rte_flow_error *error)
1171 const struct rte_flow_item_ipv4 *mask = item->mask;
1172 const struct rte_flow_item_ipv4 nic_mask = {
1174 .src_addr = RTE_BE32(0xffffffff),
1175 .dst_addr = RTE_BE32(0xffffffff),
1176 .type_of_service = 0xff,
1177 .next_proto_id = 0xff,
1180 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1181 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1182 MLX5_FLOW_LAYER_OUTER_L3;
1183 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1184 MLX5_FLOW_LAYER_OUTER_L4;
1187 if (item_flags & l3m)
1188 return rte_flow_error_set(error, ENOTSUP,
1189 RTE_FLOW_ERROR_TYPE_ITEM, item,
1190 "multiple L3 layers not supported");
1191 else if (item_flags & l4m)
1192 return rte_flow_error_set(error, EINVAL,
1193 RTE_FLOW_ERROR_TYPE_ITEM, item,
1194 "L3 cannot follow an L4 layer.");
1196 mask = &rte_flow_item_ipv4_mask;
1197 else if (mask->hdr.next_proto_id != 0 &&
1198 mask->hdr.next_proto_id != 0xff)
1199 return rte_flow_error_set(error, EINVAL,
1200 RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
1201 "partial mask is not supported"
1203 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1204 acc_mask ? (const uint8_t *)acc_mask
1205 : (const uint8_t *)&nic_mask,
1206 sizeof(struct rte_flow_item_ipv4),
1214 * Validate IPV6 item.
1217 * Item specification.
1218 * @param[in] item_flags
1219 * Bit-fields that holds the items detected until now.
1220 * @param[in] acc_mask
1221 * Acceptable mask, if NULL default internal default mask
1222 * will be used to check whether item fields are supported.
1224 * Pointer to error structure.
1227 * 0 on success, a negative errno value otherwise and rte_errno is set.
1230 mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
1231 uint64_t item_flags,
1232 const struct rte_flow_item_ipv6 *acc_mask,
1233 struct rte_flow_error *error)
1235 const struct rte_flow_item_ipv6 *mask = item->mask;
1236 const struct rte_flow_item_ipv6 nic_mask = {
1239 "\xff\xff\xff\xff\xff\xff\xff\xff"
1240 "\xff\xff\xff\xff\xff\xff\xff\xff",
1242 "\xff\xff\xff\xff\xff\xff\xff\xff"
1243 "\xff\xff\xff\xff\xff\xff\xff\xff",
1244 .vtc_flow = RTE_BE32(0xffffffff),
1249 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1250 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1251 MLX5_FLOW_LAYER_OUTER_L3;
1252 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1253 MLX5_FLOW_LAYER_OUTER_L4;
1256 if (item_flags & l3m)
1257 return rte_flow_error_set(error, ENOTSUP,
1258 RTE_FLOW_ERROR_TYPE_ITEM, item,
1259 "multiple L3 layers not supported");
1260 else if (item_flags & l4m)
1261 return rte_flow_error_set(error, EINVAL,
1262 RTE_FLOW_ERROR_TYPE_ITEM, item,
1263 "L3 cannot follow an L4 layer.");
1265 mask = &rte_flow_item_ipv6_mask;
1266 ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask,
1267 acc_mask ? (const uint8_t *)acc_mask
1268 : (const uint8_t *)&nic_mask,
1269 sizeof(struct rte_flow_item_ipv6),
1277 * Validate UDP item.
1280 * Item specification.
1281 * @param[in] item_flags
1282 * Bit-fields that holds the items detected until now.
1283 * @param[in] target_protocol
1284 * The next protocol in the previous item.
1285 * @param[in] flow_mask
1286 * mlx5 flow-specific (TCF, DV, verbs, etc.) supported header fields mask.
1288 * Pointer to error structure.
1291 * 0 on success, a negative errno value otherwise and rte_errno is set.
1294 mlx5_flow_validate_item_udp(const struct rte_flow_item *item,
1295 uint64_t item_flags,
1296 uint8_t target_protocol,
1297 struct rte_flow_error *error)
1299 const struct rte_flow_item_udp *mask = item->mask;
1300 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1301 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1302 MLX5_FLOW_LAYER_OUTER_L3;
1303 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1304 MLX5_FLOW_LAYER_OUTER_L4;
1307 if (target_protocol != 0xff && target_protocol != IPPROTO_UDP)
1308 return rte_flow_error_set(error, EINVAL,
1309 RTE_FLOW_ERROR_TYPE_ITEM, item,
1310 "protocol filtering not compatible"
1312 if (!(item_flags & l3m))
1313 return rte_flow_error_set(error, EINVAL,
1314 RTE_FLOW_ERROR_TYPE_ITEM, item,
1315 "L3 is mandatory to filter on L4");
1316 if (item_flags & l4m)
1317 return rte_flow_error_set(error, EINVAL,
1318 RTE_FLOW_ERROR_TYPE_ITEM, item,
1319 "multiple L4 layers not supported");
1321 mask = &rte_flow_item_udp_mask;
1322 ret = mlx5_flow_item_acceptable
1323 (item, (const uint8_t *)mask,
1324 (const uint8_t *)&rte_flow_item_udp_mask,
1325 sizeof(struct rte_flow_item_udp), error);
1332 * Validate TCP item.
1335 * Item specification.
1336 * @param[in] item_flags
1337 * Bit-fields that holds the items detected until now.
1338 * @param[in] target_protocol
1339 * The next protocol in the previous item.
1341 * Pointer to error structure.
1344 * 0 on success, a negative errno value otherwise and rte_errno is set.
1347 mlx5_flow_validate_item_tcp(const struct rte_flow_item *item,
1348 uint64_t item_flags,
1349 uint8_t target_protocol,
1350 const struct rte_flow_item_tcp *flow_mask,
1351 struct rte_flow_error *error)
1353 const struct rte_flow_item_tcp *mask = item->mask;
1354 const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
1355 const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 :
1356 MLX5_FLOW_LAYER_OUTER_L3;
1357 const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 :
1358 MLX5_FLOW_LAYER_OUTER_L4;
1362 if (target_protocol != 0xff && target_protocol != IPPROTO_TCP)
1363 return rte_flow_error_set(error, EINVAL,
1364 RTE_FLOW_ERROR_TYPE_ITEM, item,
1365 "protocol filtering not compatible"
1367 if (!(item_flags & l3m))
1368 return rte_flow_error_set(error, EINVAL,
1369 RTE_FLOW_ERROR_TYPE_ITEM, item,
1370 "L3 is mandatory to filter on L4");
1371 if (item_flags & l4m)
1372 return rte_flow_error_set(error, EINVAL,
1373 RTE_FLOW_ERROR_TYPE_ITEM, item,
1374 "multiple L4 layers not supported");
1376 mask = &rte_flow_item_tcp_mask;
1377 ret = mlx5_flow_item_acceptable
1378 (item, (const uint8_t *)mask,
1379 (const uint8_t *)flow_mask,
1380 sizeof(struct rte_flow_item_tcp), error);
1387 * Validate VXLAN item.
1390 * Item specification.
1391 * @param[in] item_flags
1392 * Bit-fields that holds the items detected until now.
1393 * @param[in] target_protocol
1394 * The next protocol in the previous item.
1396 * Pointer to error structure.
1399 * 0 on success, a negative errno value otherwise and rte_errno is set.
1402 mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item,
1403 uint64_t item_flags,
1404 struct rte_flow_error *error)
1406 const struct rte_flow_item_vxlan *spec = item->spec;
1407 const struct rte_flow_item_vxlan *mask = item->mask;
1412 } id = { .vlan_id = 0, };
1413 uint32_t vlan_id = 0;
1416 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1417 return rte_flow_error_set(error, ENOTSUP,
1418 RTE_FLOW_ERROR_TYPE_ITEM, item,
1419 "multiple tunnel layers not"
1422 * Verify only UDPv4 is present as defined in
1423 * https://tools.ietf.org/html/rfc7348
1425 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1426 return rte_flow_error_set(error, EINVAL,
1427 RTE_FLOW_ERROR_TYPE_ITEM, item,
1428 "no outer UDP layer found");
1430 mask = &rte_flow_item_vxlan_mask;
1431 ret = mlx5_flow_item_acceptable
1432 (item, (const uint8_t *)mask,
1433 (const uint8_t *)&rte_flow_item_vxlan_mask,
1434 sizeof(struct rte_flow_item_vxlan),
1439 memcpy(&id.vni[1], spec->vni, 3);
1440 vlan_id = id.vlan_id;
1441 memcpy(&id.vni[1], mask->vni, 3);
1442 vlan_id &= id.vlan_id;
1445 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if
1446 * only this layer is defined in the Verbs specification it is
1447 * interpreted as wildcard and all packets will match this
1448 * rule, if it follows a full stack layer (ex: eth / ipv4 /
1449 * udp), all packets matching the layers before will also
1450 * match this rule. To avoid such situation, VNI 0 is
1451 * currently refused.
1454 return rte_flow_error_set(error, ENOTSUP,
1455 RTE_FLOW_ERROR_TYPE_ITEM, item,
1456 "VXLAN vni cannot be 0");
1457 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1458 return rte_flow_error_set(error, ENOTSUP,
1459 RTE_FLOW_ERROR_TYPE_ITEM, item,
1460 "VXLAN tunnel must be fully defined");
1465 * Validate VXLAN_GPE item.
1468 * Item specification.
1469 * @param[in] item_flags
1470 * Bit-fields that holds the items detected until now.
1472 * Pointer to the private data structure.
1473 * @param[in] target_protocol
1474 * The next protocol in the previous item.
1476 * Pointer to error structure.
1479 * 0 on success, a negative errno value otherwise and rte_errno is set.
1482 mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item,
1483 uint64_t item_flags,
1484 struct rte_eth_dev *dev,
1485 struct rte_flow_error *error)
1487 struct mlx5_priv *priv = dev->data->dev_private;
1488 const struct rte_flow_item_vxlan_gpe *spec = item->spec;
1489 const struct rte_flow_item_vxlan_gpe *mask = item->mask;
1494 } id = { .vlan_id = 0, };
1495 uint32_t vlan_id = 0;
1497 if (!priv->config.l3_vxlan_en)
1498 return rte_flow_error_set(error, ENOTSUP,
1499 RTE_FLOW_ERROR_TYPE_ITEM, item,
1500 "L3 VXLAN is not enabled by device"
1501 " parameter and/or not configured in"
1503 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1504 return rte_flow_error_set(error, ENOTSUP,
1505 RTE_FLOW_ERROR_TYPE_ITEM, item,
1506 "multiple tunnel layers not"
1509 * Verify only UDPv4 is present as defined in
1510 * https://tools.ietf.org/html/rfc7348
1512 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP))
1513 return rte_flow_error_set(error, EINVAL,
1514 RTE_FLOW_ERROR_TYPE_ITEM, item,
1515 "no outer UDP layer found");
1517 mask = &rte_flow_item_vxlan_gpe_mask;
1518 ret = mlx5_flow_item_acceptable
1519 (item, (const uint8_t *)mask,
1520 (const uint8_t *)&rte_flow_item_vxlan_gpe_mask,
1521 sizeof(struct rte_flow_item_vxlan_gpe),
1527 return rte_flow_error_set(error, ENOTSUP,
1528 RTE_FLOW_ERROR_TYPE_ITEM,
1530 "VxLAN-GPE protocol"
1532 memcpy(&id.vni[1], spec->vni, 3);
1533 vlan_id = id.vlan_id;
1534 memcpy(&id.vni[1], mask->vni, 3);
1535 vlan_id &= id.vlan_id;
1538 * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this
1539 * layer is defined in the Verbs specification it is interpreted as
1540 * wildcard and all packets will match this rule, if it follows a full
1541 * stack layer (ex: eth / ipv4 / udp), all packets matching the layers
1542 * before will also match this rule. To avoid such situation, VNI 0
1543 * is currently refused.
1546 return rte_flow_error_set(error, ENOTSUP,
1547 RTE_FLOW_ERROR_TYPE_ITEM, item,
1548 "VXLAN-GPE vni cannot be 0");
1549 if (!(item_flags & MLX5_FLOW_LAYER_OUTER))
1550 return rte_flow_error_set(error, ENOTSUP,
1551 RTE_FLOW_ERROR_TYPE_ITEM, item,
1552 "VXLAN-GPE tunnel must be fully"
1558 * Validate GRE item.
1561 * Item specification.
1562 * @param[in] item_flags
1563 * Bit flags to mark detected items.
1564 * @param[in] target_protocol
1565 * The next protocol in the previous item.
1567 * Pointer to error structure.
1570 * 0 on success, a negative errno value otherwise and rte_errno is set.
1573 mlx5_flow_validate_item_gre(const struct rte_flow_item *item,
1574 uint64_t item_flags,
1575 uint8_t target_protocol,
1576 struct rte_flow_error *error)
1578 const struct rte_flow_item_gre *spec __rte_unused = item->spec;
1579 const struct rte_flow_item_gre *mask = item->mask;
1582 if (target_protocol != 0xff && target_protocol != IPPROTO_GRE)
1583 return rte_flow_error_set(error, EINVAL,
1584 RTE_FLOW_ERROR_TYPE_ITEM, item,
1585 "protocol filtering not compatible"
1586 " with this GRE layer");
1587 if (item_flags & MLX5_FLOW_LAYER_TUNNEL)
1588 return rte_flow_error_set(error, ENOTSUP,
1589 RTE_FLOW_ERROR_TYPE_ITEM, item,
1590 "multiple tunnel layers not"
1592 if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3))
1593 return rte_flow_error_set(error, ENOTSUP,
1594 RTE_FLOW_ERROR_TYPE_ITEM, item,
1595 "L3 Layer is missing");
1597 mask = &rte_flow_item_gre_mask;
1598 ret = mlx5_flow_item_acceptable
1599 (item, (const uint8_t *)mask,
1600 (const uint8_t *)&rte_flow_item_gre_mask,
1601 sizeof(struct rte_flow_item_gre), error);
1604 #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT
1605 if (spec && (spec->protocol & mask->protocol))
1606 return rte_flow_error_set(error, ENOTSUP,
1607 RTE_FLOW_ERROR_TYPE_ITEM, item,
1608 "without MPLS support the"
1609 " specification cannot be used for"
1616 * Validate MPLS item.
1619 * Pointer to the rte_eth_dev structure.
1621 * Item specification.
1622 * @param[in] item_flags
1623 * Bit-fields that holds the items detected until now.
1624 * @param[in] prev_layer
1625 * The protocol layer indicated in previous item.
1627 * Pointer to error structure.
1630 * 0 on success, a negative errno value otherwise and rte_errno is set.
1633 mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused,
1634 const struct rte_flow_item *item __rte_unused,
1635 uint64_t item_flags __rte_unused,
1636 uint64_t prev_layer __rte_unused,
1637 struct rte_flow_error *error)
1639 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1640 const struct rte_flow_item_mpls *mask = item->mask;
1641 struct mlx5_priv *priv = dev->data->dev_private;
1644 if (!priv->config.mpls_en)
1645 return rte_flow_error_set(error, ENOTSUP,
1646 RTE_FLOW_ERROR_TYPE_ITEM, item,
1647 "MPLS not supported or"
1648 " disabled in firmware"
1650 /* MPLS over IP, UDP, GRE is allowed */
1651 if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 |
1652 MLX5_FLOW_LAYER_OUTER_L4_UDP |
1653 MLX5_FLOW_LAYER_GRE)))
1654 return rte_flow_error_set(error, EINVAL,
1655 RTE_FLOW_ERROR_TYPE_ITEM, item,
1656 "protocol filtering not compatible"
1657 " with MPLS layer");
1658 /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */
1659 if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) &&
1660 !(item_flags & MLX5_FLOW_LAYER_GRE))
1661 return rte_flow_error_set(error, ENOTSUP,
1662 RTE_FLOW_ERROR_TYPE_ITEM, item,
1663 "multiple tunnel layers not"
1666 mask = &rte_flow_item_mpls_mask;
1667 ret = mlx5_flow_item_acceptable
1668 (item, (const uint8_t *)mask,
1669 (const uint8_t *)&rte_flow_item_mpls_mask,
1670 sizeof(struct rte_flow_item_mpls), error);
1675 return rte_flow_error_set(error, ENOTSUP,
1676 RTE_FLOW_ERROR_TYPE_ITEM, item,
1677 "MPLS is not supported by Verbs, please"
1682 flow_null_validate(struct rte_eth_dev *dev __rte_unused,
1683 const struct rte_flow_attr *attr __rte_unused,
1684 const struct rte_flow_item items[] __rte_unused,
1685 const struct rte_flow_action actions[] __rte_unused,
1686 struct rte_flow_error *error __rte_unused)
1688 rte_errno = ENOTSUP;
1692 static struct mlx5_flow *
1693 flow_null_prepare(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_translate(struct rte_eth_dev *dev __rte_unused,
1704 struct mlx5_flow *dev_flow __rte_unused,
1705 const struct rte_flow_attr *attr __rte_unused,
1706 const struct rte_flow_item items[] __rte_unused,
1707 const struct rte_flow_action actions[] __rte_unused,
1708 struct rte_flow_error *error __rte_unused)
1710 rte_errno = ENOTSUP;
1715 flow_null_apply(struct rte_eth_dev *dev __rte_unused,
1716 struct rte_flow *flow __rte_unused,
1717 struct rte_flow_error *error __rte_unused)
1719 rte_errno = ENOTSUP;
1724 flow_null_remove(struct rte_eth_dev *dev __rte_unused,
1725 struct rte_flow *flow __rte_unused)
1730 flow_null_destroy(struct rte_eth_dev *dev __rte_unused,
1731 struct rte_flow *flow __rte_unused)
1736 flow_null_query(struct rte_eth_dev *dev __rte_unused,
1737 struct rte_flow *flow __rte_unused,
1738 const struct rte_flow_action *actions __rte_unused,
1739 void *data __rte_unused,
1740 struct rte_flow_error *error __rte_unused)
1742 rte_errno = ENOTSUP;
1746 /* Void driver to protect from null pointer reference. */
1747 const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = {
1748 .validate = flow_null_validate,
1749 .prepare = flow_null_prepare,
1750 .translate = flow_null_translate,
1751 .apply = flow_null_apply,
1752 .remove = flow_null_remove,
1753 .destroy = flow_null_destroy,
1754 .query = flow_null_query,
1758 * Select flow driver type according to flow attributes and device
1762 * Pointer to the dev structure.
1764 * Pointer to the flow attributes.
1767 * flow driver type, MLX5_FLOW_TYPE_MAX otherwise.
1769 static enum mlx5_flow_drv_type
1770 flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr)
1772 struct mlx5_priv *priv = dev->data->dev_private;
1773 enum mlx5_flow_drv_type type = MLX5_FLOW_TYPE_MAX;
1776 type = MLX5_FLOW_TYPE_TCF;
1778 type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV :
1779 MLX5_FLOW_TYPE_VERBS;
1783 #define flow_get_drv_ops(type) flow_drv_ops[type]
1786 * Flow driver validation API. This abstracts calling driver specific functions.
1787 * The type of flow driver is determined according to flow attributes.
1790 * Pointer to the dev structure.
1792 * Pointer to the flow attributes.
1794 * Pointer to the list of items.
1795 * @param[in] actions
1796 * Pointer to the list of actions.
1798 * Pointer to the error structure.
1801 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1804 flow_drv_validate(struct rte_eth_dev *dev,
1805 const struct rte_flow_attr *attr,
1806 const struct rte_flow_item items[],
1807 const struct rte_flow_action actions[],
1808 struct rte_flow_error *error)
1810 const struct mlx5_flow_driver_ops *fops;
1811 enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr);
1813 fops = flow_get_drv_ops(type);
1814 return fops->validate(dev, attr, items, actions, error);
1818 * Flow driver preparation API. This abstracts calling driver specific
1819 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
1820 * calculates the size of memory required for device flow, allocates the memory,
1821 * initializes the device flow and returns the pointer.
1824 * This function initializes device flow structure such as dv, tcf or verbs in
1825 * struct mlx5_flow. However, it is caller's responsibility to initialize the
1826 * rest. For example, adding returning device flow to flow->dev_flow list and
1827 * setting backward reference to the flow should be done out of this function.
1828 * layers field is not filled either.
1831 * Pointer to the flow attributes.
1833 * Pointer to the list of items.
1834 * @param[in] actions
1835 * Pointer to the list of actions.
1837 * Pointer to the error structure.
1840 * Pointer to device flow on success, otherwise NULL and rte_ernno is set.
1842 static inline struct mlx5_flow *
1843 flow_drv_prepare(const struct rte_flow *flow,
1844 const struct rte_flow_attr *attr,
1845 const struct rte_flow_item items[],
1846 const struct rte_flow_action actions[],
1847 struct rte_flow_error *error)
1849 const struct mlx5_flow_driver_ops *fops;
1850 enum mlx5_flow_drv_type type = flow->drv_type;
1852 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1853 fops = flow_get_drv_ops(type);
1854 return fops->prepare(attr, items, actions, error);
1858 * Flow driver translation API. This abstracts calling driver specific
1859 * functions. Parent flow (rte_flow) should have driver type (drv_type). It
1860 * translates a generic flow into a driver flow. flow_drv_prepare() must
1864 * dev_flow->layers could be filled as a result of parsing during translation
1865 * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled
1866 * if necessary. As a flow can have multiple dev_flows by RSS flow expansion,
1867 * flow->actions could be overwritten even though all the expanded dev_flows
1868 * have the same actions.
1871 * Pointer to the rte dev structure.
1872 * @param[in, out] dev_flow
1873 * Pointer to the mlx5 flow.
1875 * Pointer to the flow attributes.
1877 * Pointer to the list of items.
1878 * @param[in] actions
1879 * Pointer to the list of actions.
1881 * Pointer to the error structure.
1884 * 0 on success, a negative errno value otherwise and rte_ernno is set.
1887 flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow,
1888 const struct rte_flow_attr *attr,
1889 const struct rte_flow_item items[],
1890 const struct rte_flow_action actions[],
1891 struct rte_flow_error *error)
1893 const struct mlx5_flow_driver_ops *fops;
1894 enum mlx5_flow_drv_type type = dev_flow->flow->drv_type;
1896 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1897 fops = flow_get_drv_ops(type);
1898 return fops->translate(dev, dev_flow, attr, items, actions, error);
1902 * Flow driver apply API. This abstracts calling driver specific functions.
1903 * Parent flow (rte_flow) should have driver type (drv_type). It applies
1904 * translated driver flows on to device. flow_drv_translate() must precede.
1907 * Pointer to Ethernet device structure.
1908 * @param[in, out] flow
1909 * Pointer to flow structure.
1911 * Pointer to error structure.
1914 * 0 on success, a negative errno value otherwise and rte_errno is set.
1917 flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
1918 struct rte_flow_error *error)
1920 const struct mlx5_flow_driver_ops *fops;
1921 enum mlx5_flow_drv_type type = flow->drv_type;
1923 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1924 fops = flow_get_drv_ops(type);
1925 return fops->apply(dev, flow, error);
1929 * Flow driver remove API. This abstracts calling driver specific functions.
1930 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
1931 * on device. All the resources of the flow should be freed by calling
1932 * flow_drv_destroy().
1935 * Pointer to Ethernet device.
1936 * @param[in, out] flow
1937 * Pointer to flow structure.
1940 flow_drv_remove(struct rte_eth_dev *dev, struct rte_flow *flow)
1942 const struct mlx5_flow_driver_ops *fops;
1943 enum mlx5_flow_drv_type type = flow->drv_type;
1945 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1946 fops = flow_get_drv_ops(type);
1947 fops->remove(dev, flow);
1951 * Flow driver destroy API. This abstracts calling driver specific functions.
1952 * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow
1953 * on device and releases resources of the flow.
1956 * Pointer to Ethernet device.
1957 * @param[in, out] flow
1958 * Pointer to flow structure.
1961 flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow)
1963 const struct mlx5_flow_driver_ops *fops;
1964 enum mlx5_flow_drv_type type = flow->drv_type;
1966 assert(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX);
1967 fops = flow_get_drv_ops(type);
1968 fops->destroy(dev, flow);
1972 * Validate a flow supported by the NIC.
1974 * @see rte_flow_validate()
1978 mlx5_flow_validate(struct rte_eth_dev *dev,
1979 const struct rte_flow_attr *attr,
1980 const struct rte_flow_item items[],
1981 const struct rte_flow_action actions[],
1982 struct rte_flow_error *error)
1986 ret = flow_drv_validate(dev, attr, items, actions, error);
1993 * Get RSS action from the action list.
1995 * @param[in] actions
1996 * Pointer to the list of actions.
1999 * Pointer to the RSS action if exist, else return NULL.
2001 static const struct rte_flow_action_rss*
2002 flow_get_rss_action(const struct rte_flow_action actions[])
2004 for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2005 switch (actions->type) {
2006 case RTE_FLOW_ACTION_TYPE_RSS:
2007 return (const struct rte_flow_action_rss *)
2017 find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level)
2019 const struct rte_flow_item *item;
2020 unsigned int has_vlan = 0;
2022 for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
2023 if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) {
2029 return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN :
2030 MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN;
2031 return rss_level < 2 ? MLX5_EXPANSION_ROOT :
2032 MLX5_EXPANSION_ROOT_OUTER;
2036 * Create a flow and add it to @p list.
2039 * Pointer to Ethernet device.
2041 * Pointer to a TAILQ flow list.
2043 * Flow rule attributes.
2045 * Pattern specification (list terminated by the END pattern item).
2046 * @param[in] actions
2047 * Associated actions (list terminated by the END action).
2049 * Perform verbose error reporting if not NULL.
2052 * A flow on success, NULL otherwise and rte_errno is set.
2054 static struct rte_flow *
2055 flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list,
2056 const struct rte_flow_attr *attr,
2057 const struct rte_flow_item items[],
2058 const struct rte_flow_action actions[],
2059 struct rte_flow_error *error)
2061 struct rte_flow *flow = NULL;
2062 struct mlx5_flow *dev_flow;
2063 const struct rte_flow_action_rss *rss;
2065 struct rte_flow_expand_rss buf;
2066 uint8_t buffer[2048];
2068 struct rte_flow_expand_rss *buf = &expand_buffer.buf;
2073 ret = flow_drv_validate(dev, attr, items, actions, error);
2076 flow_size = sizeof(struct rte_flow);
2077 rss = flow_get_rss_action(actions);
2079 flow_size += RTE_ALIGN_CEIL(rss->queue_num * sizeof(uint16_t),
2082 flow_size += RTE_ALIGN_CEIL(sizeof(uint16_t), sizeof(void *));
2083 flow = rte_calloc(__func__, 1, flow_size, 0);
2084 flow->drv_type = flow_get_drv_type(dev, attr);
2085 assert(flow->drv_type > MLX5_FLOW_TYPE_MIN &&
2086 flow->drv_type < MLX5_FLOW_TYPE_MAX);
2087 flow->queue = (void *)(flow + 1);
2088 LIST_INIT(&flow->dev_flows);
2089 if (rss && rss->types) {
2090 unsigned int graph_root;
2092 graph_root = find_graph_root(items, rss->level);
2093 ret = rte_flow_expand_rss(buf, sizeof(expand_buffer.buffer),
2095 mlx5_support_expansion,
2098 (unsigned int)ret < sizeof(expand_buffer.buffer));
2101 buf->entry[0].pattern = (void *)(uintptr_t)items;
2103 for (i = 0; i < buf->entries; ++i) {
2104 dev_flow = flow_drv_prepare(flow, attr, buf->entry[i].pattern,
2108 dev_flow->flow = flow;
2109 LIST_INSERT_HEAD(&flow->dev_flows, dev_flow, next);
2110 ret = flow_drv_translate(dev, dev_flow, attr,
2111 buf->entry[i].pattern,
2116 if (dev->data->dev_started) {
2117 ret = flow_drv_apply(dev, flow, error);
2121 TAILQ_INSERT_TAIL(list, flow, next);
2122 flow_rxq_flags_set(dev, flow);
2125 ret = rte_errno; /* Save rte_errno before cleanup. */
2127 flow_drv_destroy(dev, flow);
2129 rte_errno = ret; /* Restore rte_errno. */
2136 * @see rte_flow_create()
2140 mlx5_flow_create(struct rte_eth_dev *dev,
2141 const struct rte_flow_attr *attr,
2142 const struct rte_flow_item items[],
2143 const struct rte_flow_action actions[],
2144 struct rte_flow_error *error)
2146 struct mlx5_priv *priv = (struct mlx5_priv *)dev->data->dev_private;
2148 return flow_list_create(dev, &priv->flows,
2149 attr, items, actions, error);
2153 * Destroy a flow in a list.
2156 * Pointer to Ethernet device.
2158 * Pointer to a TAILQ flow list.
2163 flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list,
2164 struct rte_flow *flow)
2167 * Update RX queue flags only if port is started, otherwise it is
2170 if (dev->data->dev_started)
2171 flow_rxq_flags_trim(dev, flow);
2172 flow_drv_destroy(dev, flow);
2173 TAILQ_REMOVE(list, flow, next);
2174 rte_free(flow->fdir);
2179 * Destroy all flows.
2182 * Pointer to Ethernet device.
2184 * Pointer to a TAILQ flow list.
2187 mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list)
2189 while (!TAILQ_EMPTY(list)) {
2190 struct rte_flow *flow;
2192 flow = TAILQ_FIRST(list);
2193 flow_list_destroy(dev, list, flow);
2201 * Pointer to Ethernet device.
2203 * Pointer to a TAILQ flow list.
2206 mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list)
2208 struct rte_flow *flow;
2210 TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next)
2211 flow_drv_remove(dev, flow);
2212 flow_rxq_flags_clear(dev);
2219 * Pointer to Ethernet device.
2221 * Pointer to a TAILQ flow list.
2224 * 0 on success, a negative errno value otherwise and rte_errno is set.
2227 mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
2229 struct rte_flow *flow;
2230 struct rte_flow_error error;
2233 TAILQ_FOREACH(flow, list, next) {
2234 ret = flow_drv_apply(dev, flow, &error);
2237 flow_rxq_flags_set(dev, flow);
2241 ret = rte_errno; /* Save rte_errno before cleanup. */
2242 mlx5_flow_stop(dev, list);
2243 rte_errno = ret; /* Restore rte_errno. */
2248 * Verify the flow list is empty
2251 * Pointer to Ethernet device.
2253 * @return the number of flows not released.
2256 mlx5_flow_verify(struct rte_eth_dev *dev)
2258 struct mlx5_priv *priv = dev->data->dev_private;
2259 struct rte_flow *flow;
2262 TAILQ_FOREACH(flow, &priv->flows, next) {
2263 DRV_LOG(DEBUG, "port %u flow %p still referenced",
2264 dev->data->port_id, (void *)flow);
2271 * Enable a control flow configured from the control plane.
2274 * Pointer to Ethernet device.
2276 * An Ethernet flow spec to apply.
2278 * An Ethernet flow mask to apply.
2280 * A VLAN flow spec to apply.
2282 * A VLAN flow mask to apply.
2285 * 0 on success, a negative errno value otherwise and rte_errno is set.
2288 mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev,
2289 struct rte_flow_item_eth *eth_spec,
2290 struct rte_flow_item_eth *eth_mask,
2291 struct rte_flow_item_vlan *vlan_spec,
2292 struct rte_flow_item_vlan *vlan_mask)
2294 struct mlx5_priv *priv = dev->data->dev_private;
2295 const struct rte_flow_attr attr = {
2297 .priority = MLX5_FLOW_PRIO_RSVD,
2299 struct rte_flow_item items[] = {
2301 .type = RTE_FLOW_ITEM_TYPE_ETH,
2307 .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN :
2308 RTE_FLOW_ITEM_TYPE_END,
2314 .type = RTE_FLOW_ITEM_TYPE_END,
2317 uint16_t queue[priv->reta_idx_n];
2318 struct rte_flow_action_rss action_rss = {
2319 .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
2321 .types = priv->rss_conf.rss_hf,
2322 .key_len = priv->rss_conf.rss_key_len,
2323 .queue_num = priv->reta_idx_n,
2324 .key = priv->rss_conf.rss_key,
2327 struct rte_flow_action actions[] = {
2329 .type = RTE_FLOW_ACTION_TYPE_RSS,
2330 .conf = &action_rss,
2333 .type = RTE_FLOW_ACTION_TYPE_END,
2336 struct rte_flow *flow;
2337 struct rte_flow_error error;
2340 if (!priv->reta_idx_n || !priv->rxqs_n) {
2343 for (i = 0; i != priv->reta_idx_n; ++i)
2344 queue[i] = (*priv->reta_idx)[i];
2345 flow = flow_list_create(dev, &priv->ctrl_flows,
2346 &attr, items, actions, &error);
2353 * Enable a flow control configured from the control plane.
2356 * Pointer to Ethernet device.
2358 * An Ethernet flow spec to apply.
2360 * An Ethernet flow mask to apply.
2363 * 0 on success, a negative errno value otherwise and rte_errno is set.
2366 mlx5_ctrl_flow(struct rte_eth_dev *dev,
2367 struct rte_flow_item_eth *eth_spec,
2368 struct rte_flow_item_eth *eth_mask)
2370 return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL);
2376 * @see rte_flow_destroy()
2380 mlx5_flow_destroy(struct rte_eth_dev *dev,
2381 struct rte_flow *flow,
2382 struct rte_flow_error *error __rte_unused)
2384 struct mlx5_priv *priv = dev->data->dev_private;
2386 flow_list_destroy(dev, &priv->flows, flow);
2391 * Destroy all flows.
2393 * @see rte_flow_flush()
2397 mlx5_flow_flush(struct rte_eth_dev *dev,
2398 struct rte_flow_error *error __rte_unused)
2400 struct mlx5_priv *priv = dev->data->dev_private;
2402 mlx5_flow_list_flush(dev, &priv->flows);
2409 * @see rte_flow_isolate()
2413 mlx5_flow_isolate(struct rte_eth_dev *dev,
2415 struct rte_flow_error *error)
2417 struct mlx5_priv *priv = dev->data->dev_private;
2419 if (dev->data->dev_started) {
2420 rte_flow_error_set(error, EBUSY,
2421 RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
2423 "port must be stopped first");
2426 priv->isolated = !!enable;
2428 dev->dev_ops = &mlx5_dev_ops_isolate;
2430 dev->dev_ops = &mlx5_dev_ops;
2437 * @see rte_flow_query()
2441 flow_drv_query(struct rte_eth_dev *dev,
2442 struct rte_flow *flow,
2443 const struct rte_flow_action *actions,
2445 struct rte_flow_error *error)
2447 const struct mlx5_flow_driver_ops *fops;
2448 enum mlx5_flow_drv_type ftype = flow->drv_type;
2450 assert(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX);
2451 fops = flow_get_drv_ops(ftype);
2453 return fops->query(dev, flow, actions, data, error);
2459 * @see rte_flow_query()
2463 mlx5_flow_query(struct rte_eth_dev *dev,
2464 struct rte_flow *flow,
2465 const struct rte_flow_action *actions,
2467 struct rte_flow_error *error)
2471 ret = flow_drv_query(dev, flow, actions, data, error);
2478 * Convert a flow director filter to a generic flow.
2481 * Pointer to Ethernet device.
2482 * @param fdir_filter
2483 * Flow director filter to add.
2485 * Generic flow parameters structure.
2488 * 0 on success, a negative errno value otherwise and rte_errno is set.
2491 flow_fdir_filter_convert(struct rte_eth_dev *dev,
2492 const struct rte_eth_fdir_filter *fdir_filter,
2493 struct mlx5_fdir *attributes)
2495 struct mlx5_priv *priv = dev->data->dev_private;
2496 const struct rte_eth_fdir_input *input = &fdir_filter->input;
2497 const struct rte_eth_fdir_masks *mask =
2498 &dev->data->dev_conf.fdir_conf.mask;
2500 /* Validate queue number. */
2501 if (fdir_filter->action.rx_queue >= priv->rxqs_n) {
2502 DRV_LOG(ERR, "port %u invalid queue number %d",
2503 dev->data->port_id, fdir_filter->action.rx_queue);
2507 attributes->attr.ingress = 1;
2508 attributes->items[0] = (struct rte_flow_item) {
2509 .type = RTE_FLOW_ITEM_TYPE_ETH,
2510 .spec = &attributes->l2,
2511 .mask = &attributes->l2_mask,
2513 switch (fdir_filter->action.behavior) {
2514 case RTE_ETH_FDIR_ACCEPT:
2515 attributes->actions[0] = (struct rte_flow_action){
2516 .type = RTE_FLOW_ACTION_TYPE_QUEUE,
2517 .conf = &attributes->queue,
2520 case RTE_ETH_FDIR_REJECT:
2521 attributes->actions[0] = (struct rte_flow_action){
2522 .type = RTE_FLOW_ACTION_TYPE_DROP,
2526 DRV_LOG(ERR, "port %u invalid behavior %d",
2528 fdir_filter->action.behavior);
2529 rte_errno = ENOTSUP;
2532 attributes->queue.index = fdir_filter->action.rx_queue;
2534 switch (fdir_filter->input.flow_type) {
2535 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2536 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2537 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2538 attributes->l3.ipv4.hdr = (struct ipv4_hdr){
2539 .src_addr = input->flow.ip4_flow.src_ip,
2540 .dst_addr = input->flow.ip4_flow.dst_ip,
2541 .time_to_live = input->flow.ip4_flow.ttl,
2542 .type_of_service = input->flow.ip4_flow.tos,
2544 attributes->l3_mask.ipv4.hdr = (struct ipv4_hdr){
2545 .src_addr = mask->ipv4_mask.src_ip,
2546 .dst_addr = mask->ipv4_mask.dst_ip,
2547 .time_to_live = mask->ipv4_mask.ttl,
2548 .type_of_service = mask->ipv4_mask.tos,
2549 .next_proto_id = mask->ipv4_mask.proto,
2551 attributes->items[1] = (struct rte_flow_item){
2552 .type = RTE_FLOW_ITEM_TYPE_IPV4,
2553 .spec = &attributes->l3,
2554 .mask = &attributes->l3_mask,
2557 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2558 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2559 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2560 attributes->l3.ipv6.hdr = (struct ipv6_hdr){
2561 .hop_limits = input->flow.ipv6_flow.hop_limits,
2562 .proto = input->flow.ipv6_flow.proto,
2565 memcpy(attributes->l3.ipv6.hdr.src_addr,
2566 input->flow.ipv6_flow.src_ip,
2567 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2568 memcpy(attributes->l3.ipv6.hdr.dst_addr,
2569 input->flow.ipv6_flow.dst_ip,
2570 RTE_DIM(attributes->l3.ipv6.hdr.src_addr));
2571 memcpy(attributes->l3_mask.ipv6.hdr.src_addr,
2572 mask->ipv6_mask.src_ip,
2573 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
2574 memcpy(attributes->l3_mask.ipv6.hdr.dst_addr,
2575 mask->ipv6_mask.dst_ip,
2576 RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr));
2577 attributes->items[1] = (struct rte_flow_item){
2578 .type = RTE_FLOW_ITEM_TYPE_IPV6,
2579 .spec = &attributes->l3,
2580 .mask = &attributes->l3_mask,
2584 DRV_LOG(ERR, "port %u invalid flow type%d",
2585 dev->data->port_id, fdir_filter->input.flow_type);
2586 rte_errno = ENOTSUP;
2590 switch (fdir_filter->input.flow_type) {
2591 case RTE_ETH_FLOW_NONFRAG_IPV4_UDP:
2592 attributes->l4.udp.hdr = (struct udp_hdr){
2593 .src_port = input->flow.udp4_flow.src_port,
2594 .dst_port = input->flow.udp4_flow.dst_port,
2596 attributes->l4_mask.udp.hdr = (struct udp_hdr){
2597 .src_port = mask->src_port_mask,
2598 .dst_port = mask->dst_port_mask,
2600 attributes->items[2] = (struct rte_flow_item){
2601 .type = RTE_FLOW_ITEM_TYPE_UDP,
2602 .spec = &attributes->l4,
2603 .mask = &attributes->l4_mask,
2606 case RTE_ETH_FLOW_NONFRAG_IPV4_TCP:
2607 attributes->l4.tcp.hdr = (struct tcp_hdr){
2608 .src_port = input->flow.tcp4_flow.src_port,
2609 .dst_port = input->flow.tcp4_flow.dst_port,
2611 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
2612 .src_port = mask->src_port_mask,
2613 .dst_port = mask->dst_port_mask,
2615 attributes->items[2] = (struct rte_flow_item){
2616 .type = RTE_FLOW_ITEM_TYPE_TCP,
2617 .spec = &attributes->l4,
2618 .mask = &attributes->l4_mask,
2621 case RTE_ETH_FLOW_NONFRAG_IPV6_UDP:
2622 attributes->l4.udp.hdr = (struct udp_hdr){
2623 .src_port = input->flow.udp6_flow.src_port,
2624 .dst_port = input->flow.udp6_flow.dst_port,
2626 attributes->l4_mask.udp.hdr = (struct udp_hdr){
2627 .src_port = mask->src_port_mask,
2628 .dst_port = mask->dst_port_mask,
2630 attributes->items[2] = (struct rte_flow_item){
2631 .type = RTE_FLOW_ITEM_TYPE_UDP,
2632 .spec = &attributes->l4,
2633 .mask = &attributes->l4_mask,
2636 case RTE_ETH_FLOW_NONFRAG_IPV6_TCP:
2637 attributes->l4.tcp.hdr = (struct tcp_hdr){
2638 .src_port = input->flow.tcp6_flow.src_port,
2639 .dst_port = input->flow.tcp6_flow.dst_port,
2641 attributes->l4_mask.tcp.hdr = (struct tcp_hdr){
2642 .src_port = mask->src_port_mask,
2643 .dst_port = mask->dst_port_mask,
2645 attributes->items[2] = (struct rte_flow_item){
2646 .type = RTE_FLOW_ITEM_TYPE_TCP,
2647 .spec = &attributes->l4,
2648 .mask = &attributes->l4_mask,
2651 case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER:
2652 case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER:
2655 DRV_LOG(ERR, "port %u invalid flow type%d",
2656 dev->data->port_id, fdir_filter->input.flow_type);
2657 rte_errno = ENOTSUP;
2663 #define FLOW_FDIR_CMP(f1, f2, fld) \
2664 memcmp(&(f1)->fld, &(f2)->fld, sizeof(f1->fld))
2667 * Compare two FDIR flows. If items and actions are identical, the two flows are
2671 * Pointer to Ethernet device.
2673 * FDIR flow to compare.
2675 * FDIR flow to compare.
2678 * Zero on match, 1 otherwise.
2681 flow_fdir_cmp(const struct mlx5_fdir *f1, const struct mlx5_fdir *f2)
2683 if (FLOW_FDIR_CMP(f1, f2, attr) ||
2684 FLOW_FDIR_CMP(f1, f2, l2) ||
2685 FLOW_FDIR_CMP(f1, f2, l2_mask) ||
2686 FLOW_FDIR_CMP(f1, f2, l3) ||
2687 FLOW_FDIR_CMP(f1, f2, l3_mask) ||
2688 FLOW_FDIR_CMP(f1, f2, l4) ||
2689 FLOW_FDIR_CMP(f1, f2, l4_mask) ||
2690 FLOW_FDIR_CMP(f1, f2, actions[0].type))
2692 if (f1->actions[0].type == RTE_FLOW_ACTION_TYPE_QUEUE &&
2693 FLOW_FDIR_CMP(f1, f2, queue))
2699 * Search device flow list to find out a matched FDIR flow.
2702 * Pointer to Ethernet device.
2704 * FDIR flow to lookup.
2707 * Pointer of flow if found, NULL otherwise.
2709 static struct rte_flow *
2710 flow_fdir_filter_lookup(struct rte_eth_dev *dev, struct mlx5_fdir *fdir_flow)
2712 struct mlx5_priv *priv = dev->data->dev_private;
2713 struct rte_flow *flow = NULL;
2716 TAILQ_FOREACH(flow, &priv->flows, next) {
2717 if (flow->fdir && !flow_fdir_cmp(flow->fdir, fdir_flow)) {
2718 DRV_LOG(DEBUG, "port %u found FDIR flow %p",
2719 dev->data->port_id, (void *)flow);
2727 * Add new flow director filter and store it in list.
2730 * Pointer to Ethernet device.
2731 * @param fdir_filter
2732 * Flow director filter to add.
2735 * 0 on success, a negative errno value otherwise and rte_errno is set.
2738 flow_fdir_filter_add(struct rte_eth_dev *dev,
2739 const struct rte_eth_fdir_filter *fdir_filter)
2741 struct mlx5_priv *priv = dev->data->dev_private;
2742 struct mlx5_fdir *fdir_flow;
2743 struct rte_flow *flow;
2746 fdir_flow = rte_zmalloc(__func__, sizeof(*fdir_flow), 0);
2751 ret = flow_fdir_filter_convert(dev, fdir_filter, fdir_flow);
2754 flow = flow_fdir_filter_lookup(dev, fdir_flow);
2759 flow = flow_list_create(dev, &priv->flows, &fdir_flow->attr,
2760 fdir_flow->items, fdir_flow->actions, NULL);
2763 assert(!flow->fdir);
2764 flow->fdir = fdir_flow;
2765 DRV_LOG(DEBUG, "port %u created FDIR flow %p",
2766 dev->data->port_id, (void *)flow);
2769 rte_free(fdir_flow);
2774 * Delete specific filter.
2777 * Pointer to Ethernet device.
2778 * @param fdir_filter
2779 * Filter to be deleted.
2782 * 0 on success, a negative errno value otherwise and rte_errno is set.
2785 flow_fdir_filter_delete(struct rte_eth_dev *dev,
2786 const struct rte_eth_fdir_filter *fdir_filter)
2788 struct mlx5_priv *priv = dev->data->dev_private;
2789 struct rte_flow *flow;
2790 struct mlx5_fdir fdir_flow = {
2795 ret = flow_fdir_filter_convert(dev, fdir_filter, &fdir_flow);
2798 flow = flow_fdir_filter_lookup(dev, &fdir_flow);
2803 flow_list_destroy(dev, &priv->flows, flow);
2804 DRV_LOG(DEBUG, "port %u deleted FDIR flow %p",
2805 dev->data->port_id, (void *)flow);
2810 * Update queue for specific filter.
2813 * Pointer to Ethernet device.
2814 * @param fdir_filter
2815 * Filter to be updated.
2818 * 0 on success, a negative errno value otherwise and rte_errno is set.
2821 flow_fdir_filter_update(struct rte_eth_dev *dev,
2822 const struct rte_eth_fdir_filter *fdir_filter)
2826 ret = flow_fdir_filter_delete(dev, fdir_filter);
2829 return flow_fdir_filter_add(dev, fdir_filter);
2833 * Flush all filters.
2836 * Pointer to Ethernet device.
2839 flow_fdir_filter_flush(struct rte_eth_dev *dev)
2841 struct mlx5_priv *priv = dev->data->dev_private;
2843 mlx5_flow_list_flush(dev, &priv->flows);
2847 * Get flow director information.
2850 * Pointer to Ethernet device.
2851 * @param[out] fdir_info
2852 * Resulting flow director information.
2855 flow_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
2857 struct rte_eth_fdir_masks *mask =
2858 &dev->data->dev_conf.fdir_conf.mask;
2860 fdir_info->mode = dev->data->dev_conf.fdir_conf.mode;
2861 fdir_info->guarant_spc = 0;
2862 rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask));
2863 fdir_info->max_flexpayload = 0;
2864 fdir_info->flow_types_mask[0] = 0;
2865 fdir_info->flex_payload_unit = 0;
2866 fdir_info->max_flex_payload_segment_num = 0;
2867 fdir_info->flex_payload_limit = 0;
2868 memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf));
2872 * Deal with flow director operations.
2875 * Pointer to Ethernet device.
2877 * Operation to perform.
2879 * Pointer to operation-specific structure.
2882 * 0 on success, a negative errno value otherwise and rte_errno is set.
2885 flow_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
2888 enum rte_fdir_mode fdir_mode =
2889 dev->data->dev_conf.fdir_conf.mode;
2891 if (filter_op == RTE_ETH_FILTER_NOP)
2893 if (fdir_mode != RTE_FDIR_MODE_PERFECT &&
2894 fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) {
2895 DRV_LOG(ERR, "port %u flow director mode %d not supported",
2896 dev->data->port_id, fdir_mode);
2900 switch (filter_op) {
2901 case RTE_ETH_FILTER_ADD:
2902 return flow_fdir_filter_add(dev, arg);
2903 case RTE_ETH_FILTER_UPDATE:
2904 return flow_fdir_filter_update(dev, arg);
2905 case RTE_ETH_FILTER_DELETE:
2906 return flow_fdir_filter_delete(dev, arg);
2907 case RTE_ETH_FILTER_FLUSH:
2908 flow_fdir_filter_flush(dev);
2910 case RTE_ETH_FILTER_INFO:
2911 flow_fdir_info_get(dev, arg);
2914 DRV_LOG(DEBUG, "port %u unknown operation %u",
2915 dev->data->port_id, filter_op);
2923 * Manage filter operations.
2926 * Pointer to Ethernet device structure.
2927 * @param filter_type
2930 * Operation to perform.
2932 * Pointer to operation-specific structure.
2935 * 0 on success, a negative errno value otherwise and rte_errno is set.
2938 mlx5_dev_filter_ctrl(struct rte_eth_dev *dev,
2939 enum rte_filter_type filter_type,
2940 enum rte_filter_op filter_op,
2943 switch (filter_type) {
2944 case RTE_ETH_FILTER_GENERIC:
2945 if (filter_op != RTE_ETH_FILTER_GET) {
2949 *(const void **)arg = &mlx5_flow_ops;
2951 case RTE_ETH_FILTER_FDIR:
2952 return flow_fdir_ctrl_func(dev, filter_op, arg);
2954 DRV_LOG(ERR, "port %u filter type (%d) not supported",
2955 dev->data->port_id, filter_type);
2956 rte_errno = ENOTSUP;